CN105222533B - The operating method of centrifugal drying system - Google Patents
The operating method of centrifugal drying system Download PDFInfo
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- CN105222533B CN105222533B CN201510694652.4A CN201510694652A CN105222533B CN 105222533 B CN105222533 B CN 105222533B CN 201510694652 A CN201510694652 A CN 201510694652A CN 105222533 B CN105222533 B CN 105222533B
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Abstract
A kind of operating method of centrifugal drying system, it includes starting the operating method of centrifugal drying system and stops the operating method of centrifugal drying system.The present invention effectively solves the problem of small differential stable operation using hydraulic-driven centrifuge, it is ensured that centrifuge slag-drip opening material mass dryness fraction is up to standard, improves the safety and stability of production.
Description
Technical field
It is exactly specifically the operation side for being related to centrifugal drying system the invention belongs to waste reduction and disposal equipment technical field
Method, can prevent centrifuge material conveying pipe buildup.
Background technology
With the fast development of national economy, the process of industrialization of China is also constantly accelerated, but is due to China's industry knot
Structure belongs to extensive style production model, causes the environmental cost that costliness has been paid while economic development, especially atmospheric environment matter
Amount goes from bad to worse, and haze weather not only occurs, and PM2.5 is not seriously up to standard, makes the life and health of people by great threat, because
This, environmental problem is increasingly paid close attention to by masses, and in various environmental pollutions, of greatest concern is the pollution of air, by
It can be difficult to take precautions against into human body by human body respiration in air, be to influence the key factor of health of people.The pollutant of current air
How the right burning of main source mineral energy, returned to the discarded object in fossil energy combustion process and unnecessary excess energy
Receive to utilize and extensively paid close attention to by everybody.
At present, dehydrate integral system and be widely used to all kinds of mud, wet-milling, at the desiccation containing wet solid particle
Industry is managed, the discharge to the pollutant of air can be effectively reduced, its application is also among continuous expand.Centrifugal dehydration is done
The course of work of drying system be sludge or material with being completed from the deployed flocculant of flocculant dosing system after flocculation,
Be transported to centrifugal drying all-in-one feed end through feed system, into rotary drum in complete separation of solid and liquid, solid phase is through centrifugation
Machine inside spin is delivered to rotary drum slag notch, and is dispersed into loose solid particle.Solid particle in its exclusive reaction hood with
The hot-air that hot gas generating system is provided rapidly carries out heat exchange, and desiccation effect was completed in several seconds, and by vapours band
Go out centrifugal drying all-in-one, complete dehydration and desiccation.Filtrate collects heel row extremely through centrifugal drying all-in-one collecting hood
Sump or appointed place.Solid powder and steam after desiccation, which are together transported in cyclone separator, completes gas solid separation.
Solid powder is discharged by the changeover valve under cyclone separator, and is delivered to appointed place by the induction system of bottom.It is dry
Still the vapours with certain calorific value is recycled after change, and being transported to hot gas generating system by circulating fan is carried out again
Heating and " deodorization ".Unnecessary waste gas is transported to venturi gas purifier by exhaust fan and completes the purification of gas and cold
It is solidifying, finally by auxiliary blower and biological purification plant heel row to air.For sludge conventional treatment centrifuge discharging by from
The slag-drip opening of scheming is through the direct discharging of induction system or drains into hopper dredger, and material enters after centrifuge cavity, in the effect of centrifugal force
It is middle to form the different mud layer of proportion, wherein closer to the mud proportion highest of rotatory drum wall, in the relative velocity of centrifuge discharge auger
Promotion under, material is exited into centrifuge, the speed of relative velocity determines the speed of discharge, and spoil disposal is slower, during material stop
Between it is long, material discharge mass dryness fraction it is higher.Centrifuge screw drives have Dual-motors Driving, hydraulic-driven two ways, and bi-motor drives
Move due to being limited by auxiliary-motor torque, in the case where material concentration has certain fluctuation, centrifuge is not suitable in small differential
(0.5RPM) is run, and makes centrifuge in charging early stage and shutting down later stage bowl slag notch has a certain proportion of sposh to go out
It is existing, because the heat exchange of deslagging mud and dry powder conveying are conveyed by driven fan in sludge drying system, centrifuge slag-drip opening thing
Expect that mass dryness fraction need to be more than 20%, otherwise, material burns in inner-walls of duct formation incrustation, in certain circumstances pipeline incrustation,
There is security incident.
The content of the invention
The purpose of the present invention is not suitable for causing centrifuge in small differential (0.5RPM) operation aiming at existing centrifuge
There is provided a kind of centrifugal drying system for the defect that slag-drip opening material mass dryness fraction easy generation incrustation not up to standard causes security incident to occur
The operating method of system, the problem of small differential stable operation is effectively solved using hydraulic-driven centrifuge, it is ensured that centrifuge slag-drip opening
Material mass dryness fraction is up to standard, improves the safety and stability of production.
Technical scheme
In order to realize above-mentioned technical purpose, the operating method for the centrifugal drying system that the present invention is designed, it includes opening
The operating method of dynamic centrifugal drying system and the operating method for stopping centrifugal drying system, it is characterised in that：
The operating method for starting centrifugal drying system includes following steps：
(1) induction system, circulating fan, rotary valve, discarded blower fan, combustion furnace pressure-regulating device, hot gas are started successively
The air quantity of generation system, wherein circulating fan is set to 80% gear, starts delay after discarded blower fan and restarts burning after 30 seconds
Furnace pressure apparatus for adjusting force；
(2) hot gas generating system can not start if there is failure must solve to restart after failure, if hot gas is sent out
Raw system operation is good, then needs operation laggard trip temperature setting in 180 seconds；
(3) then start-up temperature is adjusted, and opens pipeline water valve, and it is 0.5rpm to set spiral differential, is started centrifugal dehydration and is done
The fluid power system of dry all-in-one, then starts centrifugal drying all-in-one, whether is measurement Cyclone outlet temperature
More than 180 DEG C, whether oxygen capacity is less than 9.5%, and whether carbon monoxide capacity is less than 1000PPM, if three indexs all reach
Mark, then start charging and confirm, otherwise send alarm signal and be adjusted；
(4) three indexs all up to standard start after charging confirms close pipeline water valve, then start flocculant concentration pump, stable
Input flocculant starts cutting machine after 180 seconds, and opens feed pump, reads spiral moment of torsion, is opened when spiral moment of torsion is more than 50Bar
Moment speed regulator control system；
The operating method for stopping centrifugal drying system includes following steps：
(a) pipeline water valve is opened, stops flocculant concentration pump, cutting machine, feed pump and hot gas generating system successively, is read
Spiral moment of torsion, starts differential regulator control system when spiral moment of torsion is not less than 50Bar until it is less than 50Bar；
(b) start-up temperature adjusts temperature adjustment and sets spiral differential as 0.5rpm if spiral moment of torsion is less than 50Bar,
Discarded fan delivery is set to 2% gear, and the air quantity of circulating fan is set to 80% gear, reads whether oxygen capacity is less than
9.5%, whether carbon monoxide capacity is less than 1000PPM, if three indexs alarm signal not up to standard that sends opens pipeline spray
System is up to standard until index；
(c) circulating fan gear is modulated after 100% air quantity gear is run 900 seconds if index is up to standard and is adjusted to 80%
Gear continues to adjust after running 900 seconds stops oxygen and carbon monoxide monitoring after gear is run 900 seconds to 60%；
(d) start centrifugal drying all-in-one and set cleaning rotating speed as 500rpm；
(e) open centrifuge flushing for production water and centrifuge flushing for production water is closed after 900 seconds；
(f) start discarded blower fan to 100% gear, measure Cyclone outlet temperature, if outlet temperature is less than 80
DEG C, then centrifugal drying all-in-one is closed, discarded blower fan is otherwise continued to run with；
(g) close after centrifugal drying system all-in-one system, if rotating speed is less than 50rpm, perform next step, otherwise after
It is continuous to wait；
If (h) rotating speed is less than 50rpm, closing pipeline water valve, centrifugal drying all-in-one, centrifugal dehydration successively is done
Dry all-in-one fluid power system, induction system, circulating fan, rotary valve, discarded blower fan.
Beneficial effect
The present invention provides a kind of operating method of centrifugal drying system, is effectively solved using hydraulic-driven centrifuge small
The problem of differential stable operation, it is ensured that centrifuge slag-drip opening material mass dryness fraction is up to standard, improves the safety and stability of production.
Brief description of the drawings
Accompanying drawing 1 is start-up course flow chart in the embodiment of the present invention.
Accompanying drawing 2 is the flow chart that start-up course is attached Fig. 1 in the embodiment of the present invention.
Accompanying drawing 3 is the flow chart that start-up course is attached Fig. 2 in the embodiment of the present invention.
Accompanying drawing 4 is stopping process flow chart in the embodiment of the present invention.
Accompanying drawing 5 is the flow chart that stopping process is attached Fig. 4 in the embodiment of the present invention.
Accompanying drawing 6 is the flow chart that stopping process is attached Fig. 5 in the embodiment of the present invention.
Accompanying drawing 7 is the flow chart that stopping process is attached Fig. 6 in the embodiment of the present invention.
Embodiment
With reference to the accompanying drawings and examples, the present invention will be further described.
Embodiment
The operating method of centrifugal drying system, it includes starting operating method and the stopping of centrifugal drying system
The operating method of centrifugal drying system, it is characterised in that：
Start the operating method of centrifugal drying system, including following steps as described in accompanying drawing 1~3：
(1) induction system, circulating fan, rotary valve, discarded blower fan, combustion furnace pressure-regulating device, hot gas are started successively
The air quantity of generation system, wherein circulating fan is set to 80% gear, starts delay after discarded blower fan and restarts burning after 30 seconds
Furnace pressure apparatus for adjusting force；
(2) hot gas generating system can not start if there is failure must solve to restart after failure, if hot gas is sent out
Raw system operation is good, then needs operation laggard trip temperature setting in 180 seconds；
(3) then start-up temperature is adjusted, and opens pipeline water valve, and it is 0.5rpm to set spiral differential, is started centrifugal dehydration and is done
The fluid power system of dry all-in-one, then starts centrifugal drying all-in-one, whether is measurement Cyclone outlet temperature
More than 180 DEG C, whether oxygen capacity is less than 9.5%, and whether carbon monoxide capacity is less than 1000PPM, if three indexs all reach
Mark, then start charging and confirm, otherwise send alarm signal and be adjusted；
(4) three indexs all up to standard start after charging confirms close pipeline water valve, then start flocculant concentration pump, stable
Input flocculant starts cutting machine after 180 seconds, and opens feed pump, reads spiral moment of torsion, is opened when spiral moment of torsion is more than 50Bar
Moment speed regulator control system；
Stop the operating method of centrifugal drying system, including following steps as described in accompanying drawing 4~7：
(a) pipeline water valve is opened, stops flocculant concentration pump, cutting machine, feed pump and hot gas generating system successively, is read
Spiral moment of torsion, starts differential regulator control system when spiral moment of torsion is not less than 50Bar until it is less than 50Bar；
(b) start-up temperature adjusts temperature adjustment and sets spiral differential as 0.5rpm if spiral moment of torsion is less than 50Bar,
Discarded fan delivery is set to 2% gear, and the air quantity of circulating fan is set to 80% gear, reads whether oxygen capacity is less than
9.5%, whether carbon monoxide capacity is less than 1000PPM, if three indexs alarm signal not up to standard that sends opens pipeline spray
System is up to standard until index；
(c) circulating fan gear is modulated after 100% air quantity gear is run 900 seconds if index is up to standard and is adjusted to 80%
Gear continues to adjust after running 900 seconds stops oxygen and carbon monoxide monitoring after gear is run 900 seconds to 60%；
(d) start centrifugal drying all-in-one and set cleaning rotating speed as 500rpm；
(e) open centrifuge flushing for production water and centrifuge flushing for production water is closed after 900 seconds；
(f) start discarded blower fan to 100% gear, measure Cyclone outlet temperature, if outlet temperature is less than 80
DEG C, then centrifugal drying all-in-one is closed, discarded blower fan is otherwise continued to run with；
(g) close after centrifugal drying system all-in-one system if rotating speed is less than 50rpm, then perform next step, otherwise after
It is continuous to wait；
If (h) rotating speed is less than 50rpm, closing pipeline water valve, centrifugal drying all-in-one, centrifugal dehydration successively is done
Dry all-in-one fluid power system, induction system, circulating fan, rotary valve, discarded blower fan.
The present invention provides a kind of operating method of centrifugal drying system, is effectively solved using hydraulic-driven centrifuge small
The problem of differential stable operation, it is ensured that centrifuge slag-drip opening material mass dryness fraction is up to standard, improves the safety and stability of production.
Claims (1)
1. the operating method of centrifugal drying system, it include starting the operating method of centrifugal drying system and stop from
The operating method of heart dehydration drying system, it is characterised in that：
The operating method for starting centrifugal drying system includes following steps：
(1) start induction system, circulating fan, rotary valve, discarded blower fan, combustion furnace pressure-regulating device, hot gas successively to occur
The air quantity of system, wherein circulating fan is set to 80% gear, starts delay after discarded blower fan and restarts burning furnace pressure after 30 seconds
Apparatus for adjusting force；
(2) hot gas generating system can not start if there is failure must solve to restart after failure, if hot gas system
System operational excellence, then need operation laggard trip temperature setting in 180 seconds；
(3) then start-up temperature is adjusted, and opens pipeline water valve, and it is 0.5rpm to set spiral differential, starts centrifugal drying one
The fluid power system of body machine, then starts centrifugal drying all-in-one, and whether measurement Cyclone outlet temperature is more 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,
Start charging to confirm, otherwise send alarm signal and be adjusted；
(4) three indexs all up to standard start after charging confirms close pipeline water valve, then start flocculant concentration pump, stable input
Flocculant starts cutting machine after 180 seconds, and opens feed pump, reads spiral moment of torsion, and it is poor to start when spiral moment of torsion is more than 50Bar
Fast regulator control system；
The operating method for stopping centrifugal drying system includes following steps：
(a) pipeline water valve is opened, stops flocculant concentration pump, cutting machine, feed pump and hot gas generating system successively, spiral is read
Moment of torsion, starts differential regulator control system when spiral moment of torsion is not less than 50Bar until it is less than 50Bar；
(b) start-up temperature adjusts and sets spiral differential as 0.5rpm if spiral moment of torsion is less than 50Bar, discards fan delivery
2% gear is set to, the air quantity of circulating fan is set to 80% gear, reads whether oxygen capacity is less than 9.5%, and carbon monoxide holds
Whether amount is less than 1000PPM, if three indexs alarm signal not up to standard that sends opens pipeline spray system until index is up to standard；
(c) circulating fan gear is modulated after 100% air quantity gear is run 900 seconds if index is up to standard and is adjusted to 80% gear
Operation continues to adjust after 900 seconds stops oxygen and carbon monoxide monitoring after gear is run 900 seconds to 60%；
(d) start centrifugal drying all-in-one and set cleaning rotating speed as 500rpm；
(e) open centrifuge flushing for production water and centrifuge flushing for production water is closed after 900 seconds；
(f) start discarded blower fan to 100% gear, measure Cyclone outlet temperature, if outlet temperature is less than 80 DEG C,
Centrifugal drying all-in-one is closed, discarded blower fan is otherwise continued to run with；
(g) close after centrifugal drying all-in-one, if rotating speed is less than 50rpm, performs next step, otherwise continue waiting for；
If (h) rotating speed is less than 50rpm, pipeline water valve, centrifugal drying all-in-one, centrifugal drying one are closed successively
Body machine fluid power system, induction system, circulating fan, rotary valve, discarded blower fan.
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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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| DE4430354A1 (en) * | 1994-08-26 | 1996-02-29 | Bauer Spezialtiefbau | Centrifuge for solid-liquid separation |
| JP2005351286A (en) * | 2004-06-08 | 2005-12-22 | Shin Caterpillar Mitsubishi Ltd | Controller of i/o rotational speed ratio variable type clutch |
| US20070225463A1 (en) * | 2006-03-27 | 2007-09-27 | Femal Michael J | Method for dehydrating biomass |
| ATE532615T1 (en) * | 2006-09-20 | 2011-11-15 | Econ Maschb Und Steuerungstechnik Gmbh | DEVICE FOR DEWATERING AND DRYING SOLIDS, IN PARTICULAR UNDERWATER GRANULATED PLASTIC |
| JP2008253973A (en) * | 2007-04-06 | 2008-10-23 | Hitoshi Kokubu | Cleaning device |
| CN101343137A (en) * | 2008-05-28 | 2009-01-14 | 罗德春 | Method for innocent treatment of bottom oil sludge, scruff and active sludge in petro-chemical industry |
| CN102372410A (en) * | 2010-08-20 | 2012-03-14 | 上海市离心机械研究所有限公司 | Method for sludge dehydration and drying |
| CN102964047B (en) * | 2012-07-23 | 2015-01-07 | 北京水泥厂有限责任公司 | Treatment method of sludge drying |
| CN102788488A (en) * | 2012-08-03 | 2012-11-21 | 梁首强 | High-speed centrifugal drying method and drying system for implementing method |
| CN203281418U (en) * | 2013-05-08 | 2013-11-13 | 上海市离心机械研究所有限公司 | Centrifugal dewatering and drying all-in-one machine with back mixing function |
| US9463466B2 (en) * | 2013-11-01 | 2016-10-11 | David Mark Decherd | Trash drying assembly |
| CN104131158B (en) * | 2014-07-18 | 2017-12-15 | 杨谋森 | A kind of folded formula recirculating fluidized bed gasification magnetizing roasting device and technique |
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