CN105222533A - The method of operating of centrifugal drying system - Google Patents
The method of operating of centrifugal drying system Download PDFInfo
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- CN105222533A CN105222533A CN201510694652.4A CN201510694652A CN105222533A CN 105222533 A CN105222533 A CN 105222533A CN 201510694652 A CN201510694652 A CN 201510694652A CN 105222533 A CN105222533 A CN 105222533A
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Abstract
A method of operating for centrifugal drying system, it comprises the method for operating starting centrifugal drying system and the method for operating stopping centrifugal drying system.The present invention adopts hydraulic-driven centrifuge effectively to solve a difficult problem for little differential stable operation, ensures that centrifuge slag-drip opening material mass dryness fraction is up to standard, improves safety and the stability of production.
Description
Technical field
The invention belongs to waste reduction and disposal equipment technical field, specifically just relate to the method for operating of centrifugal drying system, centrifuge material conveying pipe buildup can be prevented.
Background technology
Along with the fast development of national economy, the process of industrialization of China is also constantly accelerated, but because China's industrial structure belongs to extensive style production model, expensive environmental cost has been paid while causing economic development, especially atmosphere quality goes from bad to worse, haze weather not only occurs, PM2.5 is serious not up to standard, the life and health of people is made to be subject to great threat, therefore, environmental problem more and more receives popular concern, and in various environmental pollution, the pollution of of greatest concern is air, air is difficult to take precautions against owing to can be entered human body by human body respiration, it is the key factor affecting health of people.The pollutant main source mineral of current air can be right burning, how the discarded object in fossil energy combustion process and unnecessary excess energy are recycled and extensively pay close attention to by everybody.
At present, dehydrate integral system and be widely used in all kinds of mud, wet-milling, drying and other treatment industry containing wet solid particle, can effectively reduce the discharge of the pollutant to air, its range of application is also among constantly expanding.The course of work of centrifugal drying system is mud or material and after completing flocculation from the flocculant that flocculant dosing system is deployed, centrifugal drying all-in-one feed end is transported to through feed system, enter in rotary drum and complete Separation of Solid and Liquid, solid phase is delivered to rotary drum slag notch through centrifuge inside spin, and is dispersed into loose solid particle.The hot-air that solid particle provides with hot gas generation systems in the reaction hood that it is exclusive carries out exchange heat rapidly, completes mummification effect in several seconds, and takes centrifugal drying all-in-one out of by vapours, completes dehydration and mummification.Filtrate drains into sump or appointed place after centrifugal drying all-in-one collecting hood is collected.Pressed powder after mummification and steam are together transported in cyclone separator and complete gas solid separation.Pressed powder is discharged by the changeover valve under cyclone separator, and is delivered to appointed place by the induction system of bottom.The vapours still after mummification with certain calorific value is recovered utilization, is transported to hot gas generation systems again heats and " deodorizing " by circulating fan.Unnecessary waste gas is transported to venturi gas purifier by exhaust fan and completes gas cleaning and condensation, drains into air finally by after auxiliary blower and biological purification plant.For the discharging of mud conventional treatment centrifuge by the slag-drip opening of centrifuge through the direct discharging of induction system or drain into hopper dredger, after material enters centrifuge cavity, at the mud layer that the proportion of formation on of centrifugal force is different, mud proportion wherein the closer to rotatory drum wall is the highest, under the promotion of the relative velocity of centrifuge discharge auger, material is exited centrifuge, the speed of relative velocity determines the speed of discharge, spoil disposal is slower, and residence time of material is long, and the mass dryness fraction that material is discharged is higher.Centrifuge screw drives has Dual-motors Driving, hydraulic-driven two kinds of modes, Dual-motors Driving is due to the restriction by auxiliary-motor torque, when material concentration has certain fluctuation, centrifuge is not suitable for running at little differential (0.5RPM), centrifuge is made to have a certain proportion of sposh to occur in charging early stage and shutdown later stage bowl slag notch, because the heat exchange of deslagging mud and dry powder are conducted through driven fan conveying in sludge drying system, centrifuge slag-drip opening material mass dryness fraction need be greater than 20%, otherwise, material forms incrustation at inner-walls of duct, pipeline incrustation burns in certain circumstances, there is security incident.
Summary of the invention
Object of the present invention is not suitable for running at little differential (0.5RPM) defect causing centrifuge slag-drip opening material mass dryness fraction easy generation incrustation not up to standard to cause security incident to occur for existing centrifuge exactly, a kind of method of operating of centrifugal drying system is provided, hydraulic-driven centrifuge is adopted effectively to solve a difficult problem for little differential stable operation, ensure that centrifuge slag-drip opening material mass dryness fraction is up to standard, improve safety and the stability of production.
Technical scheme
In order to realize above-mentioned technical purpose, the method for operating of the centrifugal drying system of the present invention's design, it comprises the method for operating starting centrifugal drying system and the method for operating stopping centrifugal drying system, it is characterized in that:
The method of operating of described startup centrifugal drying system comprises following step:
(1) induction system, circulating fan, rotary valve, discarded blower fan, combustion furnace pressure-regulating device, hot gas generation systems is started successively, wherein the air quantity of circulating fan is set to 80% gear, and after starting discarded blower fan, time delay restarted combustion furnace pressure-regulating device after 30 seconds;
(2) hot gas generation systems if there is fault cannot start must solve fault after restart, if if hot gas generation systems operational excellence, then need the laggard trip temperature setting of operation 180 seconds;
(3) then start-up temperature regulates, open pipeline water valve, arranging spiral differential is 0.5rpm, starts the fluid power system of centrifugal drying all-in-one, then starts centrifugal drying all-in-one, measure Cyclone outlet temperature and whether be greater than 180 DEG C, whether oxygen capacity is less than 9.5%, and whether carbon monoxide capacity is less than 1000PPM, if three indexs are all up to standard, then start charging to confirm, otherwise send alarm signal and regulate;
Closing duct water valve after (4) three index startup chargings all up to standard confirm, then start flocculant concentration pump, the stable flocculant that drops into started cutting machine after 180 seconds, and opened feed pump, read spiral moment of torsion, start differential regulator control system when spiral moment of torsion is greater than 50Bar;
The method of operating of described stopping centrifugal drying system comprises following step:
A () opens pipeline water valve, stop flocculant concentration pump, cutting machine, feed pump and hot gas generation systems successively, reads spiral moment of torsion, starts differential regulator control system know that it is less than 50Bar when spiral moment of torsion is not less than 50Bar;
If b () spiral moment of torsion is less than 50Bar, start-up temperature regulates temperature to regulate and setting spiral differential is 0.5RPM, discarded fan delivery is set to 2% gear, the air quantity of circulating fan is set to 80% gear, read oxygen capacity and whether be less than 9.5%, whether carbon monoxide capacity is less than 1000PPM, if three index alarm signals that send not up to standard open pipeline spray system until index is up to standard;
If c circulating fan gear is modulated and to be adjusted to 80% gear after 100% air quantity gear runs 900 seconds and run 900 seconds and continue afterwards adjustment gear and run 900 seconds to 60% and stop oxygen and carbon monoxide monitoring afterwards by () index person up to standard;
D () starts centrifugal drying all-in-one and setting cleaning rotating speed is 500rpm;
E () is opened centrifuge flushing water and is closed centrifuge flushing water afterwards in 900 seconds;
F () starts discarded blower fan to 100% gear, measure Cyclone outlet temperature, if outlet temperature is less than 80 DEG C, then closes centrifugal drying all-in-one, otherwise continues to run discarded blower fan;
If g () closes centrifugal drying system all-in-one system after, rotating speed is less than 50rpm, otherwise continues to wait for;
If h () rotating speed is less than 50rpm, then closing duct water valve, centrifugal drying all-in-one, centrifugal drying all-in-one fluid power system, induction system, circulating fan, rotary valve, discarded blower fan successively.
Beneficial effect
The invention provides a kind of method of operating of centrifugal drying system, adopt hydraulic-driven centrifuge effectively to solve a difficult problem for little differential stable operation, ensure that centrifuge slag-drip opening material mass dryness fraction is up to standard, improve safety and the stability of production.
Accompanying drawing explanation
Accompanying drawing 1 is start-up course flow chart in the embodiment of the present invention.
Accompanying drawing 2 is flow charts that in the embodiment of the present invention, start-up course is attached Fig. 1.
Accompanying drawing 3 is flow charts that in the embodiment of the present invention, start-up course is attached Fig. 2.
Accompanying drawing 4 is stopping process flow charts in the embodiment of the present invention.
Accompanying drawing 5 is flow charts that in the embodiment of the present invention, stopping process is attached Fig. 4.
Accompanying drawing 6 is flow charts that in the embodiment of the present invention, stopping process is attached Fig. 5.
Accompanying drawing 7 is flow charts that in the embodiment of the present invention, stopping process is attached Fig. 6.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention will be further described.
Embodiment
The method of operating of centrifugal drying system, it comprises the method for operating starting centrifugal drying system and the method for operating stopping centrifugal drying system, it is characterized in that:
As described in accompanying drawing 1 ~ 3, start the method for operating of centrifugal drying system, comprise following step:
(1) induction system, circulating fan, rotary valve, discarded blower fan, combustion furnace pressure-regulating device, hot gas generation systems is started successively, wherein the air quantity of circulating fan is set to 80% gear, and after starting discarded blower fan, time delay restarted combustion furnace pressure-regulating device after 30 seconds;
(2) hot gas generation systems if there is fault cannot start must solve fault after restart, if if hot gas generation systems operational excellence, then need the laggard trip temperature setting of operation 180 seconds;
(3) then start-up temperature regulates, open pipeline water valve, arranging spiral differential is 0.5rpm, starts the fluid power system of centrifugal drying all-in-one, then starts centrifugal drying all-in-one, measure Cyclone outlet temperature and whether be greater than 180 DEG C, whether oxygen capacity is less than 9.5%, and whether carbon monoxide capacity is less than 1000PPM, if three indexs are all up to standard, then start charging to confirm, otherwise send alarm signal and regulate;
Closing duct water valve after (4) three index startup chargings all up to standard confirm, then start flocculant concentration pump, the stable flocculant that drops into started cutting machine after 180 seconds, and opened feed pump, read spiral moment of torsion, start differential regulator control system when spiral moment of torsion is greater than 50Bar;
As described in accompanying drawing 4 ~ 7, stop the method for operating of centrifugal drying system, comprise following step:
A () opens pipeline water valve, stop flocculant concentration pump, cutting machine, feed pump and hot gas generation systems successively, reads spiral moment of torsion, starts differential regulator control system know that it is less than 50Bar when spiral moment of torsion is not less than 50Bar;
If b () spiral moment of torsion is less than 50Bar, start-up temperature regulates temperature to regulate and setting spiral differential is 0.5RPM, discarded fan delivery is set to 2% gear, the air quantity of circulating fan is set to 80% gear, read oxygen capacity and whether be less than 9.5%, whether carbon monoxide capacity is less than 1000PPM, if three index alarm signals that send not up to standard open pipeline spray system until index is up to standard;
If c circulating fan gear is modulated and to be adjusted to 80% gear after 100% air quantity gear runs 900 seconds and run 900 seconds and continue afterwards adjustment gear and run 900 seconds to 60% and stop oxygen and carbon monoxide monitoring afterwards by () index person up to standard;
D () starts centrifugal drying all-in-one and setting cleaning rotating speed is 500rpm;
E () is opened centrifuge flushing water and is closed centrifuge flushing water afterwards in 900 seconds;
F () starts discarded blower fan to 100% gear, measure Cyclone outlet temperature, if outlet temperature is less than 80 DEG C, then closes centrifugal drying all-in-one, otherwise continues to run discarded blower fan;
If g () closes centrifugal drying system all-in-one system after, rotating speed is less than 50rpm, otherwise continues to wait for;
If h () rotating speed is less than 50rpm, then closing duct water valve, centrifugal drying all-in-one, centrifugal drying all-in-one fluid power system, induction system, circulating fan, rotary valve, discarded blower fan successively.
The invention provides a kind of method of operating of centrifugal drying system, adopt hydraulic-driven centrifuge effectively to solve a difficult problem for little differential stable operation, ensure that centrifuge slag-drip opening material mass dryness fraction is up to standard, improve safety and the stability of production.
Claims (1)
1. the method for operating of centrifugal drying system, it comprises the method for operating starting centrifugal drying system and the method for operating stopping centrifugal drying system, it is characterized in that:
The method of operating of described startup centrifugal drying system comprises following step:
(1) induction system, circulating fan, rotary valve, discarded blower fan, combustion furnace pressure-regulating device, hot gas generation systems is started successively, wherein the air quantity of circulating fan is set to 80% gear, and after starting discarded blower fan, time delay restarted combustion furnace pressure-regulating device after 30 seconds;
(2) hot gas generation systems if there is fault cannot start must solve fault after restart, if if hot gas generation systems operational excellence, then need the laggard trip temperature setting of operation 180 seconds;
(3) then start-up temperature regulates, open pipeline water valve, arranging spiral differential is 0.5rpm, starts the fluid power system of centrifugal drying all-in-one, then starts centrifugal drying all-in-one, measure Cyclone outlet temperature and whether be greater than 180 DEG C, whether oxygen capacity is less than 9.5%, and whether carbon monoxide capacity is less than 1000PPM, if three indexs are all up to standard, then start charging to confirm, otherwise send alarm signal and regulate;
Closing duct water valve after (4) three index startup chargings all up to standard confirm, then start flocculant concentration pump, the stable flocculant that drops into started cutting machine after 180 seconds, and opened feed pump, read spiral moment of torsion, start differential regulator control system when spiral moment of torsion is greater than 50Bar;
The method of operating of described stopping centrifugal drying system comprises following step:
A () opens pipeline water valve, stop flocculant concentration pump, cutting machine, feed pump and hot gas generation systems successively, reads spiral moment of torsion, starts differential regulator control system know that it is less than 50Bar when spiral moment of torsion is not less than 50Bar;
If b () spiral moment of torsion is less than 50Bar, start-up temperature regulates temperature to regulate and setting spiral differential is 0.5RPM, discarded fan delivery is set to 2% gear, the air quantity of circulating fan is set to 80% gear, read oxygen capacity and whether be less than 9.5%, whether carbon monoxide capacity is less than 1000PPM, if three index alarm signals that send not up to standard open pipeline spray system until index is up to standard;
If c circulating fan gear is modulated and to be adjusted to 80% gear after 100% air quantity gear runs 900 seconds and run 900 seconds and continue afterwards adjustment gear and run 900 seconds to 60% and stop oxygen and carbon monoxide monitoring afterwards by () index person up to standard;
D () starts centrifugal drying all-in-one and setting cleaning rotating speed is 500rpm;
E () is opened centrifuge flushing water and is closed centrifuge flushing water afterwards in 900 seconds;
F () starts discarded blower fan to 100% gear, measure Cyclone outlet temperature, if outlet temperature is less than 80 DEG C, then closes centrifugal drying all-in-one, otherwise continues to run discarded blower fan;
If g () closes centrifugal drying system all-in-one system after, rotating speed is less than 50rpm, otherwise continues to wait for;
If h () rotating speed is less than 50rpm, then closing duct water valve, centrifugal drying all-in-one, centrifugal drying all-in-one fluid power system, induction system, circulating fan, rotary valve, discarded blower fan successively.
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| CN201510694652.4A CN105222533B (en) | 2015-10-21 | 2015-10-21 | The operating method of centrifugal drying system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437506A (en) * | 2018-12-19 | 2019-03-08 | 上海市离心机械研究所有限公司 | Centrifugal drying integral system and its fast cooling method |
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| CN109437506B (en) * | 2018-12-19 | 2023-09-22 | 上海市离心机械研究所有限公司 | Centrifugal dehydration and drying integrated system and rapid cooling method thereof |
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| CN105222533B (en) | 2017-09-29 |
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