US20100307393A1 - Stoker-fired boiler, a method of modernization of stoker-fired boilers and a method of elimination of uncontrolled leakages of air not taking part in the combustion process in a stoker-fired boiler - Google Patents
Stoker-fired boiler, a method of modernization of stoker-fired boilers and a method of elimination of uncontrolled leakages of air not taking part in the combustion process in a stoker-fired boiler Download PDFInfo
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- US20100307393A1 US20100307393A1 US12/734,889 US73488908A US2010307393A1 US 20100307393 A1 US20100307393 A1 US 20100307393A1 US 73488908 A US73488908 A US 73488908A US 2010307393 A1 US2010307393 A1 US 2010307393A1
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- Prior art keywords
- stoker
- wind boxes
- air
- channel
- air channel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H11/00—Travelling-grates
- F23H11/10—Travelling-grates with special provision for supply of air from below and for controlling air supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B1/00—Combustion apparatus using only lump fuel
- F23B1/16—Combustion apparatus using only lump fuel the combustion apparatus being modified according to the form of grate or other fuel support
- F23B1/22—Combustion apparatus using only lump fuel the combustion apparatus being modified according to the form of grate or other fuel support using travelling grate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B30/00—Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber
- F23B30/02—Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber with movable, e.g. vibratable, fuel-supporting surfaces; with fuel-supporting surfaces that have movable parts
- F23B30/06—Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber with movable, e.g. vibratable, fuel-supporting surfaces; with fuel-supporting surfaces that have movable parts with fuel supporting surfaces that are specially adapted for advancing fuel through the combustion zone
- F23B30/08—Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber with movable, e.g. vibratable, fuel-supporting surfaces; with fuel-supporting surfaces that have movable parts with fuel supporting surfaces that are specially adapted for advancing fuel through the combustion zone with fuel-supporting surfaces that move through the combustion zone, e.g. with chain grates
Definitions
- the subject of the invention is a stoker-fired boiler containing in the combustion zone a movable stoker and an under-stoker wind boxes system, a method of modernization of such a boiler as well as a method of elimination of uncontrolled leakages of air not taking part in the combustion process in the boiler.
- the pressure is close to the pressure in the combustion chamber, and usually amounts to some ⁇ 30 to ⁇ 50 Pa.
- the appearing differences in pressure between the wind box spaces, the under-stoker space, and the atmosphere cause flows of uncontrolled leakages of air streams through the gaps existing between these spacer, however prober manufacturing of a boiler does not ensure its complete tightness.
- Sealing of the said spaces in a stoker-fired boiler meaning the elimination of uncontrolled leakages of air not taking part in the solid fuel combustion process, was subject of many solutions and attempts. From the Polish patent No. 183654 description, it is known that a stoker-fired boiler burner has already been sealed by means of metallic membrane walls.
- Migration of air streams within a stoker-fired boiler may also be controlled through the appropriate shaping of wind boxes of the under-stoker wind boxes system.
- the purpose of the invention was to reduce uncontrolled flows of air streams within a stoker-fired boiler, negatively affecting its performance.
- a boiler according to the invention contains an combustion chamber with a secondary air channel, a movable mechanical stoker, and an under-stoker space containing an under-stoker wind boxes system with wind boxes, as well as a channel supplying the air into the inside of the wind boxes
- the essence of the invention is that the boiler contains an additional air channel with an inbuilt fan with adjustable output. One end of this additional air channel is connected with the under-stoker space located outside of the wind boxes of the under-stoker wind boxes system.
- the other end of the additional air channel is connected with either the space of the channel supplying the external air to the wind boxes of the under-stoker wind boxes system, or with the atmosphere or with the secondary air channel of the combustion chamber.
- At least one air temperature sensor in the space of the channel supplying the air from the atmosphere to the inside of the wind boxes as well as in the space of the additional air channel is located at least one air temperature sensor. These sensors may be connected to controller of the fan of the additional air channel.
- a method of modernization according to the invention consists in that the under-stoker space of the aforementioned boiler, located outside of the wind boxes of the under-stoker wind boxes system, is connected with the first end of the additional air channel having an inbuilt fan with adjustable output.
- the other end of the additional air channel is connected with either the space of the channel supplying the air to the wind boxes of the under-stoker wind boxes system, or with the atmosphere or with the secondary air channel of the combustion chamber.
- At least one air temperature sensor in the space of the channel supplying the air from the atmosphere to the inside of the wind boxes, as well as in the space of the additional air channel is located at least one air temperature sensor. These sensors may be connected to the controller of the fan of the additional air channel.
- the method of elimination of uncontrolled air leakages consists in leading out and air from the under-stoker space of a boiler, located outside of the wind boxes of the under-stoker wind boxes system, to an additional air channel having an inbuilt fan with changeable output. Current output of this fan is proportional to the current difference between temperature of air supplied to the wind boxes, and the temperature of air in the additional air channel.
- the air led out to the additional air channel is either supplied to the wind boxes of the under-stoker wind boxes system, or is led out further into the atmosphere, or supplied to the secondary air channel of the combustion chamber of the boiler.
- the invention reduces the amount of air coming through the gaps and combining with the combustion fumes, giving in consequence a reduced coefficient of excess air in the fumes. This results in a reduction of a physical loss in the fumes, which also means the increase of boiler performance, usually by about 2 to 5%, depending on its technical condition, changes of the load, quality of the combustion charge, and proper maintenance and operation.
- the application of the invention also reduces the consumption of electric power by the components of the boiler by approximately 10-20%.
- the load of the extractor fan is smaller, and the consumption of energy by the fan of the additional air channel is balanced by limited energy consumption by the wind boxes air fan.
- a beneficial feature of the invention is also a short time needed for the modernization of the boiler, and a low cost of such modernization that amounts to ca. 10% of the cost of replacement of the under-stoker wind boxes system.
- the invention has been shown in a drawing, presenting schematic vertical cross sections of a stoker-fired boiler, whereas
- FIG. 1 presents a boiler with the first variant of an additional air channel
- FIG. 2 presents a boiler with the second variant of this channel
- FIG. 3 presents a boiler with the third variant of such a channel.
- a typical stoker-fired boiler has a fume zone with a fume extractor fan 1 , and a burner zone.
- the burner zone there is an combustion chamber 2 , a movable mechanical stoker 3 , an under-stoker wind boxes system 4 with wind boxes 5 , and a channel 6 supplying the air from the atmosphere to the inside of the wind boxes 5 by means of a wind boxes air fan 7 .
- the combustion chamber 2 has a secondary air channel powered by a fan 8 .
- the boiler according to the invention has an additional air channel 9 with an inbuilt fan 10 with adjustable output. One end 9 ′ of the additional air channel 9 is connected with the under-stoker space 11 located outside of the wind boxes 5 of the under-stoker wind boxes system 4 .
- the other end 9 ′′ of the additional air channel 9 may be connected with either the space of channel 6 supplying external air to the wind boxes 5 of the under-stoker wind boxes system 4 , or with the atmosphere or with the secondary air channel of the combustion chamber 2 .
- Through controlling the output of the fan 10 an appropriate amount of air deriving from uncontrolled leakages is removed from the under-stoker zone 11 , and directed to a selected place via the additional air channel 9 .
- Output of the fan 10 may be controlled manually, whereas it is beneficial to use for this purpose the knowledge of air temperature in the space of channel 6 supplying it from the atmosphere to the inside of the wind boxes 5 , and temperature of the air in the space of the additional air channel 9 .
- At least one air temperature sensor (not shown in the drawings) should be placed.
- the difference between the temperature of wind boxes air stream in the channel 6 , and temperature of air stream in the additional air channel 9 not exceeding 5° C. shows that through channel 9 flows only the air coming from uncontrolled leakages to the under-stoker space.
- the difference in temperatures amounting to 5 to 10° C. constitutes information that in the additional air channel 9 there also is the air deriving from uncontrolled leakages taking place through the section of the stoker 3 on which the combustion process no longer takes place or takes place into a limited extent.
Abstract
A boiler according to the invention contains an additional air channel (9) with an inbuilt fan (10) with adjustable output. The first end (91) of the additional air channel (9) is connected with the under-stoker space (11) located outside of the wind boxes (5) of the under-stoker wind boxes system (4). The other end (9′) of the additional air channel (9) is connected with either the space of the channel (6) supplying outside air to the wind boxes (5) or with the atmosphere or with the secondary air channel of the combustion chamber (2). Modernization of the existing boilers consists in installation in the described above method of an additional air channel (9) with an inbuilt fan (10). The method of elimination of uncontrolled leakages in a stoker-fired boiler consist in leading out and air, getting through air gaps, from the under-stoker space of the boiler located outside of the wind boxes (5) to the described above additional air channel (6), wherein current output of the fan (10) built into this channel is proportional to the current difference between temperature of air supplied to the wind boxes (5) and temperature of air in the additional air channel (6).
Description
- The subject of the invention is a stoker-fired boiler containing in the combustion zone a movable stoker and an under-stoker wind boxes system, a method of modernization of such a boiler as well as a method of elimination of uncontrolled leakages of air not taking part in the combustion process in the boiler.
- In the commercial power industry and heating industry, for generating heat stoker-fired boilers are commonly employed, in which the combustion of solid fuel, in particular of coal, takes place on a moving mechanical stoker. Above the stoker there is an combustion chamber with a secondary air channel, whereas under the stoker there is an under-stoker space containing the under-stoker wind boxes system with wind boxes, and a channel supplying the air from the atmosphere to the inside of the wind boxes, which is necessary for the combustion process on the stoker to take place. During utilization of the boiler, in the wind box spaces, the air pressure usually amounts to approximately 200-500 Pa. In the remaining part of the under-stoker space, the pressure is close to the pressure in the combustion chamber, and usually amounts to some −30 to −50 Pa. The appearing differences in pressure between the wind box spaces, the under-stoker space, and the atmosphere cause flows of uncontrolled leakages of air streams through the gaps existing between these spacer, however prober manufacturing of a boiler does not ensure its complete tightness. Sealing of the said spaces in a stoker-fired boiler, meaning the elimination of uncontrolled leakages of air not taking part in the solid fuel combustion process, was subject of many solutions and attempts. From the Polish patent No. 183654 description, it is known that a stoker-fired boiler burner has already been sealed by means of metallic membrane walls. Migration of air streams within a stoker-fired boiler may also be controlled through the appropriate shaping of wind boxes of the under-stoker wind boxes system. An example of a solution for the construction of an under-stoker wind boxes system, reducing the coefficient of excess air, was revealed in Polish patent application number P-355555.
- The purpose of the invention was to reduce uncontrolled flows of air streams within a stoker-fired boiler, negatively affecting its performance.
- A boiler according to the invention contains an combustion chamber with a secondary air channel, a movable mechanical stoker, and an under-stoker space containing an under-stoker wind boxes system with wind boxes, as well as a channel supplying the air into the inside of the wind boxes The essence of the invention is that the boiler contains an additional air channel with an inbuilt fan with adjustable output. One end of this additional air channel is connected with the under-stoker space located outside of the wind boxes of the under-stoker wind boxes system.
- In other embodiments of the boiler according to the invention, the other end of the additional air channel is connected with either the space of the channel supplying the external air to the wind boxes of the under-stoker wind boxes system, or with the atmosphere or with the secondary air channel of the combustion chamber.
- In another embodiment of the boiler according to the invention, in the space of the channel supplying the air from the atmosphere to the inside of the wind boxes as well as in the space of the additional air channel is located at least one air temperature sensor. These sensors may be connected to controller of the fan of the additional air channel.
- A method of modernization according to the invention consists in that the under-stoker space of the aforementioned boiler, located outside of the wind boxes of the under-stoker wind boxes system, is connected with the first end of the additional air channel having an inbuilt fan with adjustable output.
- In other embodiments of the method of modernization, the other end of the additional air channel is connected with either the space of the channel supplying the air to the wind boxes of the under-stoker wind boxes system, or with the atmosphere or with the secondary air channel of the combustion chamber.
- In another embodiment of the the method of modernization, in the space of the channel supplying the air from the atmosphere to the inside of the wind boxes, as well as in the space of the additional air channel is located at least one air temperature sensor. These sensors may be connected to the controller of the fan of the additional air channel.
- The method of elimination of uncontrolled air leakages according to the invention consists in leading out and air from the under-stoker space of a boiler, located outside of the wind boxes of the under-stoker wind boxes system, to an additional air channel having an inbuilt fan with changeable output. Current output of this fan is proportional to the current difference between temperature of air supplied to the wind boxes, and the temperature of air in the additional air channel.
- In other embodiments of the method of elimination of uncontrolled air leakages, the air led out to the additional air channel is either supplied to the wind boxes of the under-stoker wind boxes system, or is led out further into the atmosphere, or supplied to the secondary air channel of the combustion chamber of the boiler.
- The invention reduces the amount of air coming through the gaps and combining with the combustion fumes, giving in consequence a reduced coefficient of excess air in the fumes. This results in a reduction of a physical loss in the fumes, which also means the increase of boiler performance, usually by about 2 to 5%, depending on its technical condition, changes of the load, quality of the combustion charge, and proper maintenance and operation. The application of the invention also reduces the consumption of electric power by the components of the boiler by approximately 10-20%. As a result of general reduction of the amount of fumes removed from the boiler, the load of the extractor fan is smaller, and the consumption of energy by the fan of the additional air channel is balanced by limited energy consumption by the wind boxes air fan. A beneficial feature of the invention is also a short time needed for the modernization of the boiler, and a low cost of such modernization that amounts to ca. 10% of the cost of replacement of the under-stoker wind boxes system.
- It unexpectedly appeared that a basic advantage of the invention is significant reduction of dust emission (20-70%), which gives hope for the possibility of meeting the requirements of future emission standards without installation of expensive electrostatic dust removers (dedusters). It also unexpectedly appeared that in the operation of the boiler with the invention being employed, emission of carbon oxide (CO) is reduced by 40-80%. This makes it possible not to equip boilers with secondary air fans, and reduces consumption of electricity.
- The invention has been shown in a drawing, presenting schematic vertical cross sections of a stoker-fired boiler, whereas
-
FIG. 1 presents a boiler with the first variant of an additional air channel, -
FIG. 2 presents a boiler with the second variant of this channel, and -
FIG. 3 presents a boiler with the third variant of such a channel. - A typical stoker-fired boiler has a fume zone with a
fume extractor fan 1, and a burner zone. In the burner zone there is ancombustion chamber 2, a movablemechanical stoker 3, an under-stokerwind boxes system 4 withwind boxes 5, and achannel 6 supplying the air from the atmosphere to the inside of thewind boxes 5 by means of a windboxes air fan 7. Thecombustion chamber 2 has a secondary air channel powered by afan 8. The boiler according to the invention has anadditional air channel 9 with aninbuilt fan 10 with adjustable output. Oneend 9′ of theadditional air channel 9 is connected with the under-stoker space 11 located outside of thewind boxes 5 of the under-stokerwind boxes system 4. Theother end 9″ of theadditional air channel 9 may be connected with either the space ofchannel 6 supplying external air to thewind boxes 5 of the under-stokerwind boxes system 4, or with the atmosphere or with the secondary air channel of thecombustion chamber 2. Through controlling the output of thefan 10, an appropriate amount of air deriving from uncontrolled leakages is removed from the under-stoker zone 11, and directed to a selected place via theadditional air channel 9. Output of thefan 10 may be controlled manually, whereas it is beneficial to use for this purpose the knowledge of air temperature in the space ofchannel 6 supplying it from the atmosphere to the inside of thewind boxes 5, and temperature of the air in the space of theadditional air channel 9. In order to do so, in these places at least one air temperature sensor (not shown in the drawings) should be placed. For typical stoker-powered boilers, the difference between the temperature of wind boxes air stream in thechannel 6, and temperature of air stream in theadditional air channel 9 not exceeding 5° C. shows that throughchannel 9 flows only the air coming from uncontrolled leakages to the under-stoker space. The difference in temperatures amounting to 5 to 10° C. constitutes information that in theadditional air channel 9 there also is the air deriving from uncontrolled leakages taking place through the section of thestoker 3 on which the combustion process no longer takes place or takes place into a limited extent. In this case, uncontrolled leakages take place towards the bottom part of thecombustion chamber 2, and their reception has positive effects on the physical loss in the fumes. The difference in temperature exceeding 10° C. constitutes information that into thechannel 9 additionally flow some of the fumes from thecombustion chamber 2 without resulting in a physical loss in the fumes. These dependencies allow for automation of the adjustment of output of thefan 10, through connecting of the said temperature sensors to the fan controller, and the application of the difference between the temperatures measured by means of these sensors as a control parameter. It unexpectedly appeared that with small loads of the boiler, amounting to for instance 10-20% of the nominal load, the amount of air coming from the gaps is sufficient to conduct the process of combustion. In such a situation, when there is no possibility to isolate thechannel 6 from the atmosphere, the windboxes air fan 7 stops supplying air for the combustion process and only starts to block, the out-flow of air from the boiler. Elimination of air coming through the gaps from the stream of fumes in most cases causes the situation that the natural pull of the chimney suffices to ensure the appropriate negative pressure in thecombustion chamber 2, causing purposelessness of operation of thefumes extractor fan 1. However, according to the mandatory regulations, boiler operation without anextractor fan 1 is not permitted. A solution to this problem may be operation with lower pressure value (e.g. −50 to −80 Pa in the combustion chamber 2), and limitation of output of theextractor fan 1. Very important for proper utilization of the boiler appeared to be the point of connection of the space of thechannel 6 supplying wind boxes air with the space of theadditional air channel 9. Connection at the point which causes the situation that most of the air supplied by thefan 10 reaches thefront wind boxes 5 is unbeneficial for functioning of the boiler, particularly with the aforesaid temperature difference exceeding 10° C., because this means that an additional stream of air is supplied with a lower oxygen content. The same stream of air directed to the lastoperating wind boxes 5 positively affects the parameters of boiler operation, also with the temperature difference exceeding 10° C. This is connected with low intensity of the combustion process in this part of the stoker, meaning at the same time lower demand for oxygen. It unexpectedly appeared that connecting of the under-stoker space 11 through anadditional air channel 9 with the atmosphere does not require changes of the insofar applied operation of the boiler (manual or automated). With the under-stoker space 11 connected with thechannel 6 or the secondary air channel of thecombustion chamber 2, the mutual interaction of the streams of air, in particular with the temperature difference exceeding 5° C., changes the insofar existing course of the combustion process, causing the need for measuring the streams of air and changing the boiler control algorithms. However, economic and ecological benefits resulting from lower electricity consumption, and the use of heat of the stream of air from the gaps, justify additional outlays incurred on the implementation of this solution, instead of a simpler to control connection of the under-stoker space 11 with the atmosphere. It also unexpectedly appeared that the application of the invention gives additional operation benefits. Connecting of the first wind box separated from the stream of wind boxes air with the under-stoker space allows boiler operators to control the distance of the point of coal ignition on the stoker from the slide gate and the front part of the boiler structure. Similarly, connecting of the last non-operating wind boxes with the under-stoker space after prior separation from the stream of wind boxes air reduces uncontrolled leakages from the wind boxes space to the combustion chamber. - According to the invention, it is possible to build new boilers, as well as quickly, cheaply and effectively modernize the existing ones. For example, modernization of a popular boiler type WR-10 entails installation of an
additional air channel 9 with a centrifugal fan type WWOax-50 (made by Owent Olkusz) equipped with a 5.5 kW motor, whose rotation speed is controlled by means of a frequency converter. With manual control of this fan, decrease of stream of air supplied to the boiler was obtained by 6000 m3/h on average, with the boiler load within 30 to 80%. The application of both fans type WWOax-50 for modernization of a double-stoker boiler type WR-25 with the same manner of control of the fans caused a situation that within the load range of 40 to 80%, the excess air coefficient in the fumes dropped from the level of 2.0-2.5 to approximately 1.4-1.7. Temperature of combustion fumes after the boiler was reduced by 15 to 20° C., dust content in theses fumes stream was reduced by 20 to 70% and content of carbon oxide (CO) was reduced by 40-80%.
Claims (16)
1. A stoker-fired boiler having a combustion chamber (2) with a secondary air channel, movable mechanical stoker (3), and the under-stoker space (11) containing an under-stoker wind boxes system (4) with wind boxes (5), as well as a channel (6) supplying the air from the atmosphere to the inside of the wind boxes (5), characterized in that it contains an additional air channel (9) with an inbuilt fan (10) with adjustable output, wherein the first end (9′) of the additional air channel (9) is connected with the under-stoker space (11) located outside of the wind boxes (5) of the under-stoker wind boxes system (4).
2. The boiler according to claim 1 , characterized in that the other end (9″) of the additional air channel (9) is connected with the space of the channel (6) supplying outside air to the wind boxes (5) of the under-stoker wind boxes system (4).
3. The boiler according to claim 1 , characterized in that the other end (9″) of the additional air channel (9) is connected with the atmosphere.
4. The boiler according to claim 1 , characterized in that the other end (9″) of the additional air channel (9) is connected with the secondary air channel of the combustion chamber (2).
5. The boiler according to any one of claims 1 to 4 , characterized in that in the space of the channel (6) supplying the air from the atmosphere to the inside of the wind boxes (5) as well as in the space of the additional air channel (9) is located at least one air temperature sensor.
6. The boiler according to claim 5 , characterized in that the air temperature sensors are connected to controller of the fan (10) of the additional air channel (9).
7. A method of modernization of a stoker-fire boiler containing a combustion chamber (2) with a secondary air channel, a movable mechanical stoker (3), and an under-stoker space (11) containing an under-stoker wind boxes system (4) with wind boxes (5), as well as a channel (6) supplying the air from the atmosphere to the inside of the wind boxes (5), characterized in that the under-stoker space (11) located outside of the wind boxes (5) of the under-stoker wind boxes system (4) is connected with the first end (9′) of the additional air channel (9) having an inbuilt fan (10) with adjustable output.
8. The method of modernization of a boiler according to claim 7 , characterized in that the other end (9″) of the additional air channel (9) is connected with the space of the channel (6) supplying the outside air to the wind boxes (5) of the under-stoker wind boxes system (4).
9. The method of modernization of a boiler according to claim 7 , characterized in that the other end (9″) of the additional air channel (9) is connected with the atmosphere.
10. The method of modernization of a boiler according to claim 7 , characterized in that the other end (9″) of the additional air channel (9) is connected with the secondary air channel of the combustion chamber (2).
11. The method of modernization of a boiler according to any one of claims 7 to 10, characterized in that in the space of the channel (6) supplying the air from the atmosphere to the inside of the wind boxes (5) as well as in the space of the additional air channel (9) is located at least one air temperature sensor.
12. The method of modernization of a boiler according to claim 11 , characterized in that the air temperature sensors are connected with controller of the fan (10) of the additional air channel (9).
13. A method of elimination of uncontrolled leakages of air not taking part in the combustion process in a stoker-fired boiler containing a combustion chamber (2), movable mechanical stoker (3), and the under-stoker space (11) containing an under-stoker wind boxes system (4) with wind boxes (5), as well as a channel (6) supplying the air from the atmosphere to the inside of the wind boxes (5), characterized in that the air is led out from the under-stoker space (11) located outside of the wind boxes (5) of the under-stoker wind boxes system (4) to the additional air channel (9) with an inbuilt fan (10) with adjustable output, wherein current output of this fan (10) is proportional to the current difference between temperature of air supplied to the wind boxes (5) and temperature of air in the additional air channel (9).
14. The method of elimination of uncontrolled leakages according to claim 13 , characterized in that the air led out to the additional air channel (9) is supplied to the wind boxes (5) of the under-stoker wind boxes system (4).
15. The method of elimination of uncontrolled leakages according to claim 13 , characterized in that the air led out to the additional air channel (9) is led out further to the atmosphere.
16. The method of elimination of uncontrolled leakages according to claim 13 , characterized in that the air led out to the additional air channel (9) is supplied to the secondary air channel of the combustion chamber (2).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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PLP383941 | 2007-12-03 | ||
PL383941A PL383941A1 (en) | 2007-12-03 | 2007-12-03 | Stoker-fired boiler, the manner of modernization of a stoker-fired boiler and liquidation of harmful blow of air, which does not participate in combustion process in a stoker-fired boiler |
PCT/PL2008/000092 WO2009072909A2 (en) | 2007-12-03 | 2008-12-01 | Stoker-fired boiler, a method of modernization of stoker-fired boilers and a method of elimination of uncontrolled leakages of air not taking part in the combustion process in a stoker-fired boiler |
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US20100307393A1 true US20100307393A1 (en) | 2010-12-09 |
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US12/734,889 Abandoned US20100307393A1 (en) | 2007-12-03 | 2008-12-01 | Stoker-fired boiler, a method of modernization of stoker-fired boilers and a method of elimination of uncontrolled leakages of air not taking part in the combustion process in a stoker-fired boiler |
Country Status (10)
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US (1) | US20100307393A1 (en) |
EP (2) | EP2461098A3 (en) |
CN (1) | CN101896771A (en) |
AT (1) | ATE552463T1 (en) |
AU (1) | AU2008332014A1 (en) |
CA (1) | CA2705730A1 (en) |
PL (2) | PL383941A1 (en) |
RU (1) | RU2447371C2 (en) |
UA (1) | UA94868C2 (en) |
WO (1) | WO2009072909A2 (en) |
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DE102010052404A1 (en) * | 2010-11-24 | 2012-05-24 | Clyde Bergemann Drycon Gmbh | Method and device for controlling combustion in a combustion boiler |
CN104930697A (en) * | 2014-03-18 | 2015-09-23 | 凤城市百利锅炉制造有限公司 | Horizontal boiler |
CN107448970A (en) * | 2017-08-14 | 2017-12-08 | 山东天力节能环保工程有限公司 | Boiler room |
CN113803738A (en) * | 2021-09-30 | 2021-12-17 | 鄂尔多斯市昊华国泰化工有限公司 | Low-nitrogen combustion boiler with built-in tuyere circulation structure and method |
Citations (63)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1324884A (en) * | 1919-12-16 | Jyubnace | ||
US1614237A (en) * | 1925-04-09 | 1927-01-11 | Arthur E Grunert | Furnace construction |
US2381223A (en) * | 1941-07-22 | 1945-08-07 | Ind Engineering Corp | Automatic control for heating systems |
US2448891A (en) * | 1943-11-20 | 1948-09-07 | Harry P Katz | Forced-draft air supply and control means for furnaces |
US3174530A (en) * | 1961-09-19 | 1965-03-23 | Cyril F Meenan | Furnace combustion chamber |
US3898317A (en) * | 1972-07-24 | 1975-08-05 | Midland Ross Corp | Method for incinerating flue gases |
US3955909A (en) * | 1971-11-15 | 1976-05-11 | Aqua-Chem, Inc. | Reduction of gaseous pollutants in combustion flue gas |
US4036576A (en) * | 1976-08-11 | 1977-07-19 | The Trane Company | Incineration system for the disposal of a waste gas and method of operation |
US4113417A (en) * | 1974-11-06 | 1978-09-12 | Stein Industrie | Combustion of hot gases of low calorific power |
US4263857A (en) * | 1979-01-05 | 1981-04-28 | Dravo Corporation | Traveling grate stoker for the combustion of difficultly ignited fuels |
US4340355A (en) * | 1980-05-05 | 1982-07-20 | Honeywell Inc. | Furnace control using induced draft blower, exhaust gas flow rate sensing and density compensation |
US4362269A (en) * | 1981-03-12 | 1982-12-07 | Measurex Corporation | Control system for a boiler and method therefor |
US4375950A (en) * | 1981-04-01 | 1983-03-08 | Durley Iii Benton A | Automatic combustion control method and apparatus |
US4381988A (en) * | 1981-07-20 | 1983-05-03 | Dravo Corporation | Fine particulate removal from oil shale on a travelling grate retort |
US4446800A (en) * | 1981-03-10 | 1984-05-08 | Hb Megaron | Apparatus for firing solid fuels |
US4588372A (en) * | 1982-09-23 | 1986-05-13 | Honeywell Inc. | Flame ionization control of a partially premixed gas burner with regulated secondary air |
US4628838A (en) * | 1980-11-19 | 1986-12-16 | Peabody Engineering Corp. | Fluidized bed combustion method |
US4648329A (en) * | 1983-11-09 | 1987-03-10 | Manutair Moller | Device for reinjecting flown-off particles into a solid fuel boiler |
US4697530A (en) * | 1986-12-23 | 1987-10-06 | Dumont Holding Company | Underfed stoker boiler for burning bituminous coal and other solid fuel particles |
US4838183A (en) * | 1988-02-11 | 1989-06-13 | Morse Boulger, Inc. | Apparatus and method for incinerating heterogeneous materials |
US4905613A (en) * | 1988-09-09 | 1990-03-06 | Detroit Stoker Company | Fuel feeder |
US5031549A (en) * | 1990-10-04 | 1991-07-16 | Westinghouse Electric Corp. | Method of introducing air into a rotary combustor |
US5044288A (en) * | 1988-12-01 | 1991-09-03 | Barlow James L | Method and apparatus for the efficient combustion of a mass fuel |
US5230293A (en) * | 1991-02-22 | 1993-07-27 | Von Roll Ag | Method and apparatus for controlling a refuse incineration plant |
US5241916A (en) * | 1991-02-07 | 1993-09-07 | Martin Gmbh Fur Umwelt- Und Energietechnik | Procedure for supplying combustion air and a furnace therefor |
US5261337A (en) * | 1991-06-21 | 1993-11-16 | Mitsubishi Jukogyo Kabushiki Kaisha | Combustion control method of refuse incinerator |
US5307746A (en) * | 1990-02-28 | 1994-05-03 | Institute Of Gas Technology | Process and apparatus for emissions reduction from waste incineration |
US5357879A (en) * | 1992-05-20 | 1994-10-25 | Ebara-Infilco Co., Ltd. | Dried sludge melting furnace |
US5359967A (en) * | 1993-06-15 | 1994-11-01 | Carter Hudson R | Combined thermal and fuel NOx control utilizing furnace cleanliness and stoichiometric burner combustion |
US5484476A (en) * | 1994-01-11 | 1996-01-16 | Electric Power Research Institute, Inc. | Method for preheating fly ash |
US5496450A (en) * | 1994-04-13 | 1996-03-05 | Blumenthal; Robert N. | Multiple on-line sensor systems and methods |
US5588378A (en) * | 1995-04-18 | 1996-12-31 | New York State Electric & Gas Corporation | Combustion enhancement system with in-bed foils |
US5601071A (en) * | 1995-01-26 | 1997-02-11 | Tridelta Industries, Inc. | Flow control system |
US5606924A (en) * | 1993-12-29 | 1997-03-04 | Martin Gmbh Fuer Umwelt- Und Energietechnik | Process for regulating individual factors or all factors influencing combustion on a furnace grate |
US5634412A (en) * | 1994-08-09 | 1997-06-03 | Martin Gmbh Fuer Umwelt- Und Energietechnik | Method for regulating the furnace in incineration plants in particular in refuse incineration plants |
US5806440A (en) * | 1995-06-09 | 1998-09-15 | Texas Instruments Incorporated | Method for controlling an induced draft fan for use with gas furnaces |
US5813767A (en) * | 1995-09-29 | 1998-09-29 | Finmeccanica S.P.A. Azienda Ansaldo | System and a method for monitoring combustion and pollutants in a thermal plant by means of laser diodes |
US6019593A (en) * | 1998-10-28 | 2000-02-01 | Glasstech, Inc. | Integrated gas burner assembly |
US6085674A (en) * | 1999-02-03 | 2000-07-11 | Clearstack Combustion Corp. | Low nitrogen oxides emissions from carbonaceous fuel combustion using three stages of oxidation |
US6145453A (en) * | 1998-05-05 | 2000-11-14 | Martin Gmbh Fuer Unwelt- Und Energietechnik | Method for controlling the firing rate of combustion installations |
US6155183A (en) * | 1996-01-31 | 2000-12-05 | A E P Resources Service Company | Method and apparatus for reducing NOx emissions from a multiple-intertube pulverized-coal burner |
US6289266B1 (en) * | 1999-05-14 | 2001-09-11 | Allegheny Power Service Corporation | Method of operating a boiler |
US6537059B2 (en) * | 2000-05-12 | 2003-03-25 | Siemens Building Technologies Ag | Regulating device for a burner |
US6638061B1 (en) * | 2002-08-13 | 2003-10-28 | North American Manufacturing Company | Low NOx combustion method and apparatus |
US6655304B1 (en) * | 1999-05-21 | 2003-12-02 | Barlow Projects, Inc. | Mass fuel combustion system |
US6705533B2 (en) * | 2001-04-20 | 2004-03-16 | Gas Research Institute | Digital modulation for a gas-fired heater |
US6764298B2 (en) * | 2001-04-16 | 2004-07-20 | Lg Electronics Inc. | Method for controlling air fuel ratio in gas furnace |
US20040191914A1 (en) * | 2003-03-28 | 2004-09-30 | Widmer Neil Colin | Combustion optimization for fossil fuel fired boilers |
US6799526B2 (en) * | 1997-09-26 | 2004-10-05 | American Air Liquide, Inc. | Methods of improving productivity of black liquor recovery boilers |
US20040244367A1 (en) * | 2003-06-05 | 2004-12-09 | Swanson Larry William | Multi-compartment overfire air and N-agent injection system and method for nitrogen oxide reduction in flue gas |
US20040255831A1 (en) * | 2003-06-18 | 2004-12-23 | Joseph Rabovitser | Combustion-based emission reduction method and system |
US6866202B2 (en) * | 2001-09-10 | 2005-03-15 | Varidigm Corporation | Variable output heating and cooling control |
US7347112B2 (en) * | 2004-05-03 | 2008-03-25 | Environemental Monitoring Systems, Inc. | Air sampler with integrated airflow sensing |
US7401577B2 (en) * | 2003-03-19 | 2008-07-22 | American Air Liquide, Inc. | Real time optimization and control of oxygen enhanced boilers |
US7497172B2 (en) * | 2005-10-12 | 2009-03-03 | Breen Energy Solutions | Method to decrease emissions of nitrogen oxides and mercury through in-situ gasification of carbon/water slurries |
US20100112500A1 (en) * | 2008-11-03 | 2010-05-06 | Maiello Dennis R | Apparatus and method for a modulating burner controller |
US7756591B2 (en) * | 2006-04-25 | 2010-07-13 | Pegasus Technologies, Inc. | System for optimizing oxygen in a boiler |
US20100206203A1 (en) * | 2007-05-21 | 2010-08-19 | Mario Magaldi | System for dry extracting/cooling heterogeneous material ashes with control of the air inlet in the combustion chamber |
US7802984B2 (en) * | 2006-04-07 | 2010-09-28 | Thomas & Betts International, Inc. | System and method for combustion-air modulation of a gas-fired heating system |
US7832342B2 (en) * | 2005-03-04 | 2010-11-16 | Martin GmbH für Umwelt-und Energietechnik | Process for combusting fuels, in particular waste |
US7975628B2 (en) * | 2006-09-13 | 2011-07-12 | Martin GmbH für Umwelt- und Energietechnik | Method for supplying combustion gas in incineration systems |
US20110232544A1 (en) * | 2008-12-12 | 2011-09-29 | Foster Wheeler Energia Oy | Oxycombustion Circulating Fluidized Bed Reactor, Method of Operating Such a Reactor and Method of Upgrading a Circulating Fluidized Bed Reactor |
US8196532B2 (en) * | 2008-02-27 | 2012-06-12 | Andrus Jr Herbert E | Air-fired CO2 capture ready circulating fluidized bed heat generation with a reactor subsystem |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE394358A (en) * | ||||
GB973244A (en) | 1960-02-05 | 1964-10-21 | Ivor John Conibear | Improvements in furnaces fitted with chain grate stokers |
RU2078283C1 (en) * | 1995-03-07 | 1997-04-27 | Челябинская ТЭЦ-2 | Method and device for burning ground coal |
RU2244873C2 (en) * | 2002-07-29 | 2005-01-20 | Туманов Сергей Сергеевич | Furnace for burning wood wastes in fluidized bed |
RU2294483C1 (en) * | 2005-08-17 | 2007-02-27 | Сергей Алексеевич Концевой | Method and device for burning solid fuel |
-
2007
- 2007-12-03 PL PL383941A patent/PL383941A1/en not_active IP Right Cessation
-
2008
- 2008-12-01 US US12/734,889 patent/US20100307393A1/en not_active Abandoned
- 2008-12-01 AT AT08858195T patent/ATE552463T1/en active
- 2008-12-01 AU AU2008332014A patent/AU2008332014A1/en not_active Abandoned
- 2008-12-01 EP EP12157001.4A patent/EP2461098A3/en not_active Withdrawn
- 2008-12-01 WO PCT/PL2008/000092 patent/WO2009072909A2/en active Application Filing
- 2008-12-01 RU RU2010126547/06A patent/RU2447371C2/en not_active IP Right Cessation
- 2008-12-01 UA UAA201008013A patent/UA94868C2/en unknown
- 2008-12-01 PL PL08858195T patent/PL2217858T3/en unknown
- 2008-12-01 CN CN2008801187198A patent/CN101896771A/en active Pending
- 2008-12-01 EP EP08858195A patent/EP2217858B1/en active Active
- 2008-12-01 CA CA2705730A patent/CA2705730A1/en not_active Abandoned
Patent Citations (65)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1324884A (en) * | 1919-12-16 | Jyubnace | ||
US1614237A (en) * | 1925-04-09 | 1927-01-11 | Arthur E Grunert | Furnace construction |
US2381223A (en) * | 1941-07-22 | 1945-08-07 | Ind Engineering Corp | Automatic control for heating systems |
US2448891A (en) * | 1943-11-20 | 1948-09-07 | Harry P Katz | Forced-draft air supply and control means for furnaces |
US3174530A (en) * | 1961-09-19 | 1965-03-23 | Cyril F Meenan | Furnace combustion chamber |
US3955909A (en) * | 1971-11-15 | 1976-05-11 | Aqua-Chem, Inc. | Reduction of gaseous pollutants in combustion flue gas |
US3898317A (en) * | 1972-07-24 | 1975-08-05 | Midland Ross Corp | Method for incinerating flue gases |
US4113417A (en) * | 1974-11-06 | 1978-09-12 | Stein Industrie | Combustion of hot gases of low calorific power |
US4036576A (en) * | 1976-08-11 | 1977-07-19 | The Trane Company | Incineration system for the disposal of a waste gas and method of operation |
US4263857A (en) * | 1979-01-05 | 1981-04-28 | Dravo Corporation | Traveling grate stoker for the combustion of difficultly ignited fuels |
US4340355A (en) * | 1980-05-05 | 1982-07-20 | Honeywell Inc. | Furnace control using induced draft blower, exhaust gas flow rate sensing and density compensation |
US4628838A (en) * | 1980-11-19 | 1986-12-16 | Peabody Engineering Corp. | Fluidized bed combustion method |
US4446800A (en) * | 1981-03-10 | 1984-05-08 | Hb Megaron | Apparatus for firing solid fuels |
US4362269A (en) * | 1981-03-12 | 1982-12-07 | Measurex Corporation | Control system for a boiler and method therefor |
US4375950A (en) * | 1981-04-01 | 1983-03-08 | Durley Iii Benton A | Automatic combustion control method and apparatus |
US4381988A (en) * | 1981-07-20 | 1983-05-03 | Dravo Corporation | Fine particulate removal from oil shale on a travelling grate retort |
US4588372A (en) * | 1982-09-23 | 1986-05-13 | Honeywell Inc. | Flame ionization control of a partially premixed gas burner with regulated secondary air |
US4648329A (en) * | 1983-11-09 | 1987-03-10 | Manutair Moller | Device for reinjecting flown-off particles into a solid fuel boiler |
US4739715A (en) * | 1983-11-09 | 1988-04-26 | Couarc H Michel F E | Process and device for reinjecting flown-off particles into a solid fuel boiler |
US4697530A (en) * | 1986-12-23 | 1987-10-06 | Dumont Holding Company | Underfed stoker boiler for burning bituminous coal and other solid fuel particles |
US4838183A (en) * | 1988-02-11 | 1989-06-13 | Morse Boulger, Inc. | Apparatus and method for incinerating heterogeneous materials |
US4905613A (en) * | 1988-09-09 | 1990-03-06 | Detroit Stoker Company | Fuel feeder |
US5044288A (en) * | 1988-12-01 | 1991-09-03 | Barlow James L | Method and apparatus for the efficient combustion of a mass fuel |
US5307746A (en) * | 1990-02-28 | 1994-05-03 | Institute Of Gas Technology | Process and apparatus for emissions reduction from waste incineration |
US5031549A (en) * | 1990-10-04 | 1991-07-16 | Westinghouse Electric Corp. | Method of introducing air into a rotary combustor |
US5241916A (en) * | 1991-02-07 | 1993-09-07 | Martin Gmbh Fur Umwelt- Und Energietechnik | Procedure for supplying combustion air and a furnace therefor |
US5230293A (en) * | 1991-02-22 | 1993-07-27 | Von Roll Ag | Method and apparatus for controlling a refuse incineration plant |
US5261337A (en) * | 1991-06-21 | 1993-11-16 | Mitsubishi Jukogyo Kabushiki Kaisha | Combustion control method of refuse incinerator |
US5357879A (en) * | 1992-05-20 | 1994-10-25 | Ebara-Infilco Co., Ltd. | Dried sludge melting furnace |
US5359967A (en) * | 1993-06-15 | 1994-11-01 | Carter Hudson R | Combined thermal and fuel NOx control utilizing furnace cleanliness and stoichiometric burner combustion |
US5606924A (en) * | 1993-12-29 | 1997-03-04 | Martin Gmbh Fuer Umwelt- Und Energietechnik | Process for regulating individual factors or all factors influencing combustion on a furnace grate |
US5484476A (en) * | 1994-01-11 | 1996-01-16 | Electric Power Research Institute, Inc. | Method for preheating fly ash |
US5496450A (en) * | 1994-04-13 | 1996-03-05 | Blumenthal; Robert N. | Multiple on-line sensor systems and methods |
US5634412A (en) * | 1994-08-09 | 1997-06-03 | Martin Gmbh Fuer Umwelt- Und Energietechnik | Method for regulating the furnace in incineration plants in particular in refuse incineration plants |
US5601071A (en) * | 1995-01-26 | 1997-02-11 | Tridelta Industries, Inc. | Flow control system |
US5588378A (en) * | 1995-04-18 | 1996-12-31 | New York State Electric & Gas Corporation | Combustion enhancement system with in-bed foils |
US5806440A (en) * | 1995-06-09 | 1998-09-15 | Texas Instruments Incorporated | Method for controlling an induced draft fan for use with gas furnaces |
US5813767A (en) * | 1995-09-29 | 1998-09-29 | Finmeccanica S.P.A. Azienda Ansaldo | System and a method for monitoring combustion and pollutants in a thermal plant by means of laser diodes |
US6155183A (en) * | 1996-01-31 | 2000-12-05 | A E P Resources Service Company | Method and apparatus for reducing NOx emissions from a multiple-intertube pulverized-coal burner |
US6799526B2 (en) * | 1997-09-26 | 2004-10-05 | American Air Liquide, Inc. | Methods of improving productivity of black liquor recovery boilers |
US6145453A (en) * | 1998-05-05 | 2000-11-14 | Martin Gmbh Fuer Unwelt- Und Energietechnik | Method for controlling the firing rate of combustion installations |
US6019593A (en) * | 1998-10-28 | 2000-02-01 | Glasstech, Inc. | Integrated gas burner assembly |
US6085674A (en) * | 1999-02-03 | 2000-07-11 | Clearstack Combustion Corp. | Low nitrogen oxides emissions from carbonaceous fuel combustion using three stages of oxidation |
US6289266B1 (en) * | 1999-05-14 | 2001-09-11 | Allegheny Power Service Corporation | Method of operating a boiler |
US6655304B1 (en) * | 1999-05-21 | 2003-12-02 | Barlow Projects, Inc. | Mass fuel combustion system |
US6537059B2 (en) * | 2000-05-12 | 2003-03-25 | Siemens Building Technologies Ag | Regulating device for a burner |
US6764298B2 (en) * | 2001-04-16 | 2004-07-20 | Lg Electronics Inc. | Method for controlling air fuel ratio in gas furnace |
US6705533B2 (en) * | 2001-04-20 | 2004-03-16 | Gas Research Institute | Digital modulation for a gas-fired heater |
US6866202B2 (en) * | 2001-09-10 | 2005-03-15 | Varidigm Corporation | Variable output heating and cooling control |
US6638061B1 (en) * | 2002-08-13 | 2003-10-28 | North American Manufacturing Company | Low NOx combustion method and apparatus |
US7401577B2 (en) * | 2003-03-19 | 2008-07-22 | American Air Liquide, Inc. | Real time optimization and control of oxygen enhanced boilers |
US20040191914A1 (en) * | 2003-03-28 | 2004-09-30 | Widmer Neil Colin | Combustion optimization for fossil fuel fired boilers |
US7838297B2 (en) * | 2003-03-28 | 2010-11-23 | General Electric Company | Combustion optimization for fossil fuel fired boilers |
US20040244367A1 (en) * | 2003-06-05 | 2004-12-09 | Swanson Larry William | Multi-compartment overfire air and N-agent injection system and method for nitrogen oxide reduction in flue gas |
US20040255831A1 (en) * | 2003-06-18 | 2004-12-23 | Joseph Rabovitser | Combustion-based emission reduction method and system |
US7347112B2 (en) * | 2004-05-03 | 2008-03-25 | Environemental Monitoring Systems, Inc. | Air sampler with integrated airflow sensing |
US7832342B2 (en) * | 2005-03-04 | 2010-11-16 | Martin GmbH für Umwelt-und Energietechnik | Process for combusting fuels, in particular waste |
US7497172B2 (en) * | 2005-10-12 | 2009-03-03 | Breen Energy Solutions | Method to decrease emissions of nitrogen oxides and mercury through in-situ gasification of carbon/water slurries |
US7802984B2 (en) * | 2006-04-07 | 2010-09-28 | Thomas & Betts International, Inc. | System and method for combustion-air modulation of a gas-fired heating system |
US7756591B2 (en) * | 2006-04-25 | 2010-07-13 | Pegasus Technologies, Inc. | System for optimizing oxygen in a boiler |
US7975628B2 (en) * | 2006-09-13 | 2011-07-12 | Martin GmbH für Umwelt- und Energietechnik | Method for supplying combustion gas in incineration systems |
US20100206203A1 (en) * | 2007-05-21 | 2010-08-19 | Mario Magaldi | System for dry extracting/cooling heterogeneous material ashes with control of the air inlet in the combustion chamber |
US8196532B2 (en) * | 2008-02-27 | 2012-06-12 | Andrus Jr Herbert E | Air-fired CO2 capture ready circulating fluidized bed heat generation with a reactor subsystem |
US20100112500A1 (en) * | 2008-11-03 | 2010-05-06 | Maiello Dennis R | Apparatus and method for a modulating burner controller |
US20110232544A1 (en) * | 2008-12-12 | 2011-09-29 | Foster Wheeler Energia Oy | Oxycombustion Circulating Fluidized Bed Reactor, Method of Operating Such a Reactor and Method of Upgrading a Circulating Fluidized Bed Reactor |
Also Published As
Publication number | Publication date |
---|---|
PL2217858T3 (en) | 2012-09-28 |
EP2217858A2 (en) | 2010-08-18 |
PL383941A1 (en) | 2009-06-08 |
EP2217858B1 (en) | 2012-04-04 |
ATE552463T1 (en) | 2012-04-15 |
UA94868C2 (en) | 2011-06-10 |
AU2008332014A1 (en) | 2009-06-11 |
WO2009072909A3 (en) | 2009-08-06 |
CN101896771A (en) | 2010-11-24 |
RU2447371C2 (en) | 2012-04-10 |
CA2705730A1 (en) | 2009-06-11 |
EP2461098A3 (en) | 2014-08-27 |
EP2461098A2 (en) | 2012-06-06 |
RU2010126547A (en) | 2012-01-10 |
WO2009072909A2 (en) | 2009-06-11 |
WO2009072909A4 (en) | 2009-10-15 |
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