CN109899802A - Drying particles sludge cooperates with power generation by waste combustion system and method with rubbish in grate furnace - Google Patents
Drying particles sludge cooperates with power generation by waste combustion system and method with rubbish in grate furnace Download PDFInfo
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- CN109899802A CN109899802A CN201910160787.0A CN201910160787A CN109899802A CN 109899802 A CN109899802 A CN 109899802A CN 201910160787 A CN201910160787 A CN 201910160787A CN 109899802 A CN109899802 A CN 109899802A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
Abstract
The present invention relates to solid waste incineration processing technology fields, it is desirable to provide drying particles sludge cooperates with power generation by waste combustion system and method with rubbish in a kind of grate furnace.The system includes sludge drying and granulating system, waste fire grate furnace incineration system and flue-gas dust removal and purification and sewage disposal system；From the mating waste heat boiler extraction saturated vapor of refuse incineration grate furnace to indirect heat exchange type single shaft stirring desiccation machine, the condensation discharge of wastewater mouth of condensate drain outlet and condenser passes through pipeline respectively and is connected to sewage treatment unit；The burner hearth of refuse incineration grate furnace is connected at the top of wet mud storage warehouse by pipeline and air-introduced machine, the latter's flue gas discharge opening is connected to flue gas ash removal and purification device and chimney.The present invention uses totally-enclosed system, reduces the secondary pollution of sludge odor；It solves that investment is high, take up a large area, the construction period is long with the problems such as transportation cost is high, resource utilization degree is low, obvious environmental benefit and economic benefit can be generated.
Description
Technical field
The present invention relates to drying particles sludge in a kind of grate furnace, and power generation by waste combustion system and method is cooperateed with rubbish, belongs to solid
Body castoff burning processing technology field.
Background technique
National 735.3 hundred million tons of wastewater emission amount in 2015, increased by 2.7% than 2014, wherein discharged volume of industrial waste water
199.5 hundred million tons, 535.2 hundred million tons of town domestic sewage discharge amount, wastewater emission amount increases year by year.Different types of sludge characteristics
Difference is a kind of solid waste containing numerous contamination hazard substances, but it is also rich in organic matter, having certain calorific value
Resource, with the deep propulsion of Re-search on Urbanization process, need to sludge carry out efficient, innoxious, disposal of resources.
Domestic specific resistance to filtration mode mainly has the modes such as high temperature incineration, sanitary landfills, water body consumption.Wherein, it defends
It is raw to fill easy to operate, small investment, at present using relatively broad, but since sanitary landfills land occupation is big, and only delay
The time of environmental pollution cannot function as the following Main way of Treatment of Sludge.In contrast, high temperature incineration method can be killed effectively
Various pathogen, carbonization organic matter in sludge greatly reduce the volume of sludge, while can also recycle the fever of sludge incineration
Amount, therefore be considered as most effective, most thorough sludge disposal method.And it individually builds large-scale sludge incineration plant presence and needs to add
The problems such as auxiliary fuel, operating cost are high, the construction period is long and transportation cost is high, incinerator energy consumption is high, the cycle of operation is long, fugitive dust
Its popularization and application is also limited with the drawbacks of secondary pollutions such as flying dust.
Summary of the invention
The technical problem to be solved by the present invention is to overcome deficiency in the prior art, provide desiccation in a kind of grate furnace and make
Grain sludge cooperates with power generation by waste combustion system and method with rubbish.
In order to solve the technical problem, solution of the invention is:
Drying particles sludge in a kind of grate furnace is provided and cooperates with power generation by waste combustion system, including sludge drying and granulation with rubbish
System, waste fire grate furnace incineration system and flue-gas dust removal and purification and sewage disposal system；
The sludge drying and granulating system include being sequentially arranged: wet mud storage warehouse, positive pressure batcher, sludge screw rod
Pump, indirect heat exchange type single shaft stir desiccation machine, sludge cooler, double center chain scrapper conveyor, dewatered sludge surge bunker, bucket elevator, spiral
Conveyer belt, horizontal ring roll cylindrical body pelletizer, grain sieving machine and mud granulizing particle storage warehouse；
The waste fire grate furnace incineration system includes house refuse storage warehouse, crusher, dispenser, refuse incineration grate furnace
With flue gas ash removal and purification device, crane is set between mud granulizing particle storage warehouse and dispenser and is grabbed bucket for transferring sludge
Particle；Saturated vapor is drawn from the mating waste heat boiler of refuse incineration grate furnace, and indirect heat exchange type single shaft is connected to by pipeline
Stir desiccation machine；
The flue-gas dust removal and purification and sewage disposal system include flue gas ash removal and purification device, chimney, cyclone dust collectors,
Condenser, air-introduced machine and sewage treatment unit；The desiccation Waste gas outlet of indirect heat exchange type single shaft stirring desiccation machine passes through pipeline
It is sequentially connected cyclone dust collectors, condenser and air-introduced machine entrance, heat exchange type single shaft stirs the condensate drain outlet of desiccation machine and cold
The condensation discharge of wastewater mouth of condenser passes through pipeline respectively and is connected to sewage treatment unit；It is connected at the top of wet mud storage warehouse by pipeline
The entrance of air-introduced machine, the outlet of air-introduced machine are connected to the burner hearth of refuse incineration grate furnace by pipeline, and the flue gas discharge opening of the latter is logical
It crosses pipeline and is connected to flue gas ash removal and purification device and chimney.
Cool air inlet and cooling waste gas outlet are set in the present invention, on the sludge cooler, and the latter is connect by pipeline
To cyclone dust collectors entrance.
In the present invention, waste outlet is set, and passes through piping connection to dewatered sludge surge bunker on the grain sieving machine.
Invention further provides realize that drying particles sludge cooperates with burning with rubbish in grate furnace using aforementioned system
The method of power generation, comprising:
It is indirect heat exchange type list by the sludge screw pump that the positive pressure batcher that wet mud storage warehouse bottom is arranged is configured
Axis stirs desiccation machine feeding；Sludge after drying and other treatment is first sent into sludge cooler, and sludge after cooling is by double center chain scraper plate
Machine is transported to dewatered sludge surge bunker, is then sent again by bucket elevator and spiral conveyor to horizontal ring roll cylindrical body pelletizer, to dry
Change sludge to be granulated；For mud granule after grain sieving machine sieves, up to specification is sent to mud granulizing particle storage warehouse,
The return dewatered sludge surge bunker to fall short of specifications；
After house refuse in house refuse storage warehouse is handled by crusher, it is sent to the feed hopper of dispenser；Meanwhile benefit
It is grabbed bucket with crane and send the mud granule in mud granulizing particle storage warehouse to feed hopper；Dispenser is mixed to refuse incineration grate furnace
Charging is closed, mud granule and granulated garbage realize full combustion, the heat that mating waste heat boiler is generated using burning in grate furnace
Production saturated vapor is for generating electricity；Meanwhile desiccation of the extension saturated vapor for indirect heat exchange type single shaft stirring desiccation machine
Heat exchange；
The desiccation exhaust gas of indirect heat exchange type single shaft stirring desiccation machine discharge is admitted to cyclone dust collectors separating treatment, then through cold
After condenser is cooling, exhaust gas sent by air-introduced machine burned into refuse incineration grate furnace it is combustion-supporting；Sludge cooler introduces cold air to dry
Change sludge to be cooled down, the condensation waste water of the condensed water and condenser that are discharged, which is sent to sewage treatment unit, to be further processed；
Foul smell is sent into refuse incineration grate furnace burner hearth by air-introduced machine at the top of wet mud storage warehouse and is burnt；The cigarette that hearth combustion generates
Gas is after flue gas ash removal and purified treatment, by smoke stack emission to atmosphere.
In the present invention, the moisture content through indirect heat exchange type single shaft stirring desiccation machine treated dewatered sludge is 30~
40%；Dewatered sludge is cooled to 50~60 DEG C through sludge cooler.
In the present invention, it is used to remove in sludge in the feed inlet arrangement magnetic separator of horizontal ring roll cylindrical body pelletizer
Then sludge after desiccation is squeezed to squeeze in the through-hole of annulus wheel roller mould with cylindrical pinch roller and is made by metallic monolith object
Grain；Mud granule obtained by drying particles is cylindrical body, and diameter range is 8~16mm, and length range is 3~5cm.
In the present invention, the desiccation that foul smell and indirect heat exchange type single shaft the stirring desiccation machine that wet mud storage warehouse generates generate is useless
Gas is sent by air-introduced machine into the burner hearth of refuse incineration grate furnace combustion-supporting as First air burning.
In the present invention, the partial size of the granulated garbage after crusher break process is less than 200mm, and mud granule is in rubbish
Mixed-fuel burning proportion in grain is 5~15%.
In the present invention, the refuse incineration grate furnace is triple-fired furnace grate furnace, is divided into dryer section, burning zone and after-flame section,
Temperature of each section section is respectively 200~250 DEG C, 850~1050 DEG C and 550~650 DEG C, and First air wind-warm syndrome is 140~180 DEG C.
Compared with prior art, the beneficial effects of the present invention are:
1, the saturated vapor heat that the present invention is generated by waste incineration carries out desiccation to sludge, and moisture content is down to 30~
40%, reduce external function demand, while by carrying out granulation processing to dewatered sludge, reduce dewatered sludge transport, storage and
The fugitive dust and flying dust generated in burning process, then the heat generated with the heat supplement incineration treatment of garbage that sludge incineration generates；
Burning power plant is simultaneously furnished with flue-gas dust removal and purification and sewage disposal system, reduces the independent incineration flue gas processing unit of sludge and does
Change waste gas condensation liquid processing device, reduces equipment investment and the transportation cost of Treatment of Sludge；
2, the present invention uses totally-enclosed system, reduces the secondary pollution of sludge odor；It solves using the prior art to municipal administration
When sludge or industrial sludge carry out independent burning disposal, system equipment investment is high, take up a large area, the construction period is long and transport
At high cost, the problems such as resource utilization degree is low, obvious environmental benefit and economic benefit can be generated.
Detailed description of the invention
Fig. 1 is that drying particles sludge cooperates with power generation by waste combustion system diagram with rubbish in grate furnace.
Appended drawing reference in figure: 1, wet mud storage warehouse；2, positive pressure batcher；3 sludge screw pumps；4, indirect heat exchange type list
Axis stirs desiccation machine；5, sludge cooler；6, double center chain scrapper conveyor；7, dewatered sludge surge bunker；8, bucket elevator；9, helical feed
Band；10, horizontal ring roll cylindrical body pelletizer；11, grain sieving machine；12, mud granulizing particle storage warehouse；13, house refuse is stored up
Storage；14, crusher；15, dispenser；16, refuse incineration grate furnace；17, flue gas ash removal and purification device；18, chimney；19,
Cyclone dust collectors；20, condenser；21, air-introduced machine；22, sewage treatment unit.
Specific embodiment
Detailed content and its specific embodiment of the invention, but implementation of the invention are further illustrated with reference to the accompanying drawing
Mode is without being limited thereto.
As shown in Figure 1, drying particles sludge cooperates with power generation by waste combustion system with rubbish in grate furnace, including sludge drying and make
Grain system, waste fire grate furnace incineration system and flue-gas dust removal and purification and sewage disposal system；Wherein,
Sludge drying and granulating system include being sequentially arranged: wet mud storage warehouse 1, positive pressure batcher 2, sludge screw pump
3, indirect heat exchange type single shaft stirring desiccation machine 4, sludge cooler 5, double center chain scrapper conveyor 6, dewatered sludge surge bunker 7, bucket elevator 8,
Spiral conveyor 9, horizontal ring roll cylindrical body pelletizer 10, grain sieving machine 11 and mud granulizing particle storage warehouse 12；Particle sieve
Waste outlet is set on extension set 11, and passes through piping connection to dewatered sludge surge bunker 7.
Waste fire grate furnace incineration system includes house refuse storage warehouse 13, crusher 14, dispenser 15, garbage incinerator fire grate
Crane grab bucket is arranged between mud granulizing particle storage warehouse 12 and dispenser 15 and uses for furnace 16 and flue gas ash removal and purification device 17
In transfer mud granule；Saturated vapor is drawn from the mating waste heat boiler of refuse incineration grate furnace 16, and between being connected to by pipeline
Connect heat exchange type single shaft stirring desiccation machine 4；
Flue-gas dust removal and purification and sewage disposal system include flue gas ash removal and purification device 17, chimney 18, cyclone dust collectors
19, condenser 20, air-introduced machine 21 and sewage treatment unit 22；Indirect heat exchange type single shaft stirs the desiccation exhaust gas discharge of desiccation machine 4
Mouth is sequentially connected 21 entrance of cyclone dust collectors 19, condenser 20 and air-introduced machine by pipeline, and heat exchange type single shaft stirs desiccation machine 4
The condensation discharge of wastewater mouth of condensate drain outlet and condenser 20 passes through pipeline respectively and is connected to sewage treatment unit 22；Sludge is cooling
Cool air inlet and cooling waste gas outlet are set on machine 5, and the latter is connected to 19 entrance of cyclone dust collectors by pipeline；Wet mud storage
The entrance of air-introduced machine 21 is connected at the top of storehouse 1 by pipeline, the outlet of air-introduced machine 21 is connected to refuse incineration grate furnace 16 by pipeline
Burner hearth, the flue gas discharge opening of the latter is connected to flue gas ash removal and purification device 17 and chimney 18 by pipeline.
The method of power generation by waste combustion is cooperateed with rubbish using drying particles sludge in aforementioned system realization grate furnace, comprising:
It is indirect heat exchange type by the sludge screw pump 3 that the positive pressure batcher 2 that 1 bottom of wet mud storage warehouse is arranged is configured
Single shaft stirring 4 feeding of desiccation machine；It is 30~40% by its drying and other treatment to moisture content；Sludge after drying and other treatment is first sent into dirt
Mud cooler 5 is cooled to 50~60 DEG C, is then transported by double center chain scrapper conveyor 6 to dewatered sludge surge bunker 7, then by 8 He of bucket elevator
Spiral conveyor 9 is sent to horizontal ring roll cylindrical body pelletizer 10, is granulated to dewatered sludge；It is granulated in horizontal ring roll cylindrical body
The feed inlet arrangement magnetic separator of machine 10 is used to remove the metallic monolith object in sludge, then utilizes cylindrical pinch roller by desiccation
Sludge afterwards is squeezed to carrying out extrusion granulation in the through-hole of annulus wheel roller mould；Mud granule obtained by drying particles is cylindrical body,
Its diameter range is 8~16mm, and length range is 3~5cm.Mud granule is up to specification after the screening of grain sieving machine 11
It is sent to mud granulizing particle storage warehouse 12, the return dewatered sludge surge bunker 7 to fall short of specifications.
After house refuse in house refuse storage warehouse 13 is handled by crusher, the partial size of granulated garbage is less than 200mm.Rubbish
Rubbish particle is sent to the feed hopper of dispenser 15；Meanwhile it being grabbed bucket using crane by the sludge in mud granulizing particle storage warehouse 12
Particle is sent to feed hopper；For dispenser 15 to 16 mixed feeding of refuse incineration grate furnace, mud granule mixes burning in granulated garbage
Ratio is 5~15%.Mud granule and granulated garbage realize full combustion in grate furnace, and refuse incineration grate furnace 16 is three-stage
Grate furnace, is divided into dryer section, burning zone and after-flame section, temperature of each section section be respectively 200~250 DEG C, 850~1050 DEG C and
550~650 DEG C, First air wind-warm syndrome is 140~180 DEG C.Mating waste heat boiler produces saturated vapor using the heat that burning generates
For generating electricity；Meanwhile desiccation heat exchange of the extension saturated vapor for indirect heat exchange type single shaft stirring desiccation machine 4.
The desiccation exhaust gas that indirect heat exchange type single shaft stirring desiccation machine 4 discharges is admitted to 19 separating treatment of cyclone dust collectors, then
After condenser 20 is cooling, sent by air-introduced machine 21 to refuse incineration grate furnace 16 in company with the foul smell that wet mud storage warehouse 1 generates
It is combustion-supporting as First air burning in burner hearth.Sludge cooler 5 introduces cold air and cools down to dewatered sludge, the condensation discharged
The condensation waste water of water and condenser 20, which is sent to sewage treatment unit 22, to be further processed；By drawing at the top of wet mud storage warehouse 1
Blower 21, which send foul smell to refuse incineration grate furnace 16, to burn；The flue gas that hearth combustion generates is through flue gas ash removal and purified treatment
Afterwards, atmosphere is emitted by chimney 18.
Concrete application example:
Positive pressure batcher 2, the wet dirt that moisture content is about 80% by positive pressure batcher 2 are arranged in 1 bottom of wet mud storage warehouse
Mud is delivered to the feed inlet of sludge screw pump 3, and wet mud is delivered to indirect heat exchange type single shaft stirring desiccation machine by sludge screw pump 3
4 feed inlets；Indirect heat exchange type single shaft stir desiccation machine 4 using refuse incineration grate furnace 16 generate saturated vapor to wet mud into
In the ranks connect heating and drying, the condensed condensed water feeding sewage treatment unit 22 of saturated vapor heat exchange, wet mud design entry temperature
Degree: 20 DEG C, dewatered sludge outlet temperature: 70~80 DEG C, sludge partial size after desiccation: 0.5~3mm, dewatered sludge moisture content are
30%~40%；Desiccation exhaust gas passes sequentially through cyclone dust collectors 19 and condenser 20, and the condensation waste water of condenser 20 is sent into sewage
Processing unit 22, by the sludge odor in dedusting and condensed not condensable gas and wet mud storage warehouse 1 by drawing
Blower 21 send into 16 burner hearth of refuse incineration grate furnace combustion-supporting as First air after aspirating；Dewatered sludge passes through sludge cooler 5
60 DEG C are cooled to, then passes through the transport of double center chain scrapper conveyor 6 to dewatered sludge surge bunker 7；Dewatered sludge passes through bucket elevator 8 and spiral transferring
It send at the transport to horizontal 10 feed inlet of ring roll cylindrical body pelletizer of band 9, magnetic separator removal sludge is first passed through at feed inlet
In metal block, in order to avoid damaged to horizontal ring roll cylindrical body pelletizer 10；By cylindrical pinch roller by the sludge after desiccation
It squeezes to the through-hole of annulus wheel roller mould, so that the cylindrical body mud granule of same diameter size is obtained, and by changing ring
The through-hole diameter of shape wheel roller mould can be changed mud granule diameter, and drying particles sludge is cylindrical particle, and diameter range is 8~
16mm, length range are 3~5cm；The underproof mud granule of partial size is screened out by grain sieving machine 11 come and returning charge is to dry
Sludge surge bunker 7, qualified mud granulizing particle enter mud granulizing particle storage warehouse 12；
It needs to pass through crane claw bucket sling after 14 break process of crusher to diameter is less than 200mm before consumer waste incineration
After entering dispenser feed inlet and the mixing of mud granulizing particle, then it is pushed into refuse incineration grate furnace 16 and burns, sludge mixed-fuel burning proportion
It is 5~15%；Refuse incineration grate furnace 16 is triple-fired furnace grate furnace, is divided into dryer section, burning zone and after-flame section, temperature of each section area
Between be respectively 200~250 DEG C, 850~1050 DEG C and 550~650 DEG C, First air wind-warm syndrome be 140~160 DEG C；
Mud granule and rubbish mix the flue gas for burning and generating in refuse incineration grate furnace 16 and successively pass through flue, flue gas at different levels
Heating surface is discharged after flue gas ash removal and purification device 17 reach discharge standard by chimney 18.
Drying particles sludge cooperates with power generation by waste combustion system with rubbish in grate furnace of the present invention, can with municipal sludge or
Industrial sludge is raw material, and the saturated vapor heat generated by waste incineration carries out desiccation to sludge, moisture content is down to 30~
40%, while by carrying out granulation processing to dewatered sludge, what is generated in the transport of reduction dewatered sludge, storage and burning process raises
Dirt and flying dust, then the heat generated with the heat supplement incineration treatment of garbage that sludge incineration generates；Burning power plant is simultaneously furnished with
Flue-gas dust removal and purification and sewage disposal system reduce the independent incineration flue gas processing unit of sludge and desiccation waste gas condensation liquid processing dress
It sets, reduces equipment investment and the transportation cost of Treatment of Sludge.Using totally-enclosed system, the secondary pollution of sludge is reduced, can be produced
Raw obvious environmental benefit and economic benefit.
The foregoing is merely preferred embodiments of the invention, are not intended to restrict the invention, for the technology of this field
For personnel, the invention may be variously modified and varied.All any modification, equivalent substitution, improvement and etc. made for the present invention,
It should all be included in the protection scope of the present invention.
Claims (9)
1. drying particles sludge cooperates with power generation by waste combustion system with rubbish in a kind of grate furnace, including sludge drying and granulating system,
Waste fire grate furnace incineration system and flue-gas dust removal and purification and sewage disposal system；It is characterized in that,
The sludge drying and granulating system include being sequentially arranged: wet mud storage warehouse, positive pressure batcher, sludge screw pump,
Indirect heat exchange type single shaft stirs desiccation machine, sludge cooler, double center chain scrapper conveyor, dewatered sludge surge bunker, bucket elevator, helical feed
Band, horizontal ring roll cylindrical body pelletizer, grain sieving machine and mud granulizing particle storage warehouse；
The waste fire grate furnace incineration system includes house refuse storage warehouse, crusher, dispenser, refuse incineration grate furnace and cigarette
Gas dedusting and purification device are arranged crane between mud granulizing particle storage warehouse and dispenser and grab bucket for transferring sludge
Grain；Saturated vapor is drawn from the mating waste heat boiler of refuse incineration grate furnace, and indirect heat exchange type single shaft is connected to by pipeline and is stirred
Mix desiccation machine；
The flue-gas dust removal and purification and sewage disposal system include flue gas ash removal and purification device, chimney, cyclone dust collectors, condensation
Device, air-introduced machine and sewage treatment unit；The desiccation Waste gas outlet that indirect heat exchange type single shaft stirs desiccation machine passes through pipeline successively
Cyclone dust collectors, condenser and air-introduced machine entrance are connected, heat exchange type single shaft stirs the condensate drain outlet and condenser of desiccation machine
Condensation discharge of wastewater mouth pass through pipeline respectively and be connected to sewage treatment unit；Air inducing is connected to by pipeline at the top of wet mud storage warehouse
The entrance of machine, the outlet of air-introduced machine are connected to the burner hearth of refuse incineration grate furnace by pipeline, and the flue gas discharge opening of the latter passes through pipe
Road is connected to flue gas ash removal and purification device and chimney.
2. system according to claim 1, which is characterized in that cool air inlet and cooling are arranged on the sludge cooler
Waste gas outlet, the latter are connected to cyclone dust collectors entrance by pipeline.
3. system according to claim 1, which is characterized in that waste outlet is arranged on the grain sieving machine, and passes through
Piping connection is to dewatered sludge surge bunker.
4. the method that drying particles sludge cooperates with power generation by waste combustion with rubbish in grate furnace is realized using system described in claim 1,
It is characterised by comprising:
The sludge screw pump configured by the positive pressure batcher that wet mud storage warehouse bottom is arranged is that indirect heat exchange type single shaft stirs
Mix desiccation machine feeding；Sludge after drying and other treatment is first sent into sludge cooler, and sludge after cooling is transported by double center chain scrapper conveyor
Dewatered sludge surge bunker is transported to, is then sent again by bucket elevator and spiral conveyor to horizontal ring roll cylindrical body pelletizer, to desiccation dirt
Mud is granulated；For mud granule after grain sieving machine sieves, up to specification is sent to mud granulizing particle storage warehouse, is not inconsistent
Close the return dewatered sludge surge bunker of specification；
After house refuse in house refuse storage warehouse is handled by crusher, it is sent to the feed hopper of dispenser；Meanwhile using hanging
Vehicle grab bucket send the mud granule in mud granulizing particle storage warehouse to feed hopper；Dispenser is mixed into refuse incineration grate furnace
Material, mud granule and granulated garbage realize full combustion in grate furnace, and mating waste heat boiler is produced using the heat that burning generates
Saturated vapor is for generating electricity；Meanwhile desiccation heat exchange of the extension saturated vapor for indirect heat exchange type single shaft stirring desiccation machine；
The desiccation exhaust gas of indirect heat exchange type single shaft stirring desiccation machine discharge is admitted to cyclone dust collectors separating treatment, then through condenser
After cooling, exhaust gas sent by air-introduced machine burned into refuse incineration grate furnace it is combustion-supporting；Sludge cooler introduces cold air to desiccation dirt
Mud is cooled down, and the condensation waste water of the condensed water and condenser that are discharged, which is sent to sewage treatment unit, to be further processed；Wet dirt
Foul smell is sent into refuse incineration grate furnace burner hearth by air-introduced machine at the top of mud storage warehouse and is burnt；The flue gas warp that hearth combustion generates
After flue gas ash removal and purified treatment, by smoke stack emission to atmosphere.
5. according to the method described in claim 4, it is characterized in that, that treated is dry through indirect heat exchange type single shaft stirring desiccation machine
The moisture content for changing sludge is 30~40%；Dewatered sludge is cooled to 50~60 DEG C through sludge cooler.
6. according to the method described in claim 4, it is characterized in that, the feed inlet in horizontal ring roll cylindrical body pelletizer arranges magnetic
Property separator be used to remove metallic monolith object in sludge, then the sludge after desiccation is squeezed to annulus wheel with cylinder pinch roller
Extrusion granulation is carried out in the through-hole of roller mould；Mud granule obtained by drying particles is cylindrical body, and diameter range is 8~16mm,
Length range is 3~5cm.
7. according to the method described in claim 4, it is characterized in that, foul smell and indirect heat exchange type list that wet mud storage warehouse generates
The desiccation exhaust gas that axis stirring desiccation machine generates is sent by air-introduced machine into the burner hearth of refuse incineration grate furnace to be helped as First air burning
Combustion.
8. according to the method described in claim 4, it is characterized in that, the partial size of the granulated garbage after crusher break process is small
In 200mm, mixed-fuel burning proportion of the mud granule in granulated garbage is 5~15%.
9. according to the method described in claim 4, it is characterized in that, the refuse incineration grate furnace be triple-fired furnace grate furnace, point
For dryer section, burning zone and after-flame section, temperature of each section section is respectively 200~250 DEG C, 850~1050 DEG C and 550~650 DEG C,
First air wind-warm syndrome is 140~180 DEG C.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110204172A (en) * | 2019-07-10 | 2019-09-06 | 邹丹星 | A kind of solid waste environment-friendly disposal system equipment |
| CN110615594A (en) * | 2019-09-30 | 2019-12-27 | 广州环投设计研究院有限公司 | Efficient and clean sludge drying and blending combustion system for garbage power plant |
| CN110759625A (en) * | 2019-11-11 | 2020-02-07 | 烟台润达垃圾处理运营有限公司 | Sludge drying system |
| CN111396899A (en) * | 2020-04-10 | 2020-07-10 | 海诺尔环保产业股份有限公司 | Sludge drying and incineration integrated treatment system |
| CN112174478A (en) * | 2020-11-03 | 2021-01-05 | 长春市城建维护集团股份有限公司 | Sludge treatment device and process capable of cooperatively treating odor of sewage treatment plant |
| CN113513759A (en) * | 2021-04-25 | 2021-10-19 | 浙江宏电环保装备有限公司 | Waste incineration waste gas treatment equipment and use method thereof |
| CN116146995A (en) * | 2023-01-07 | 2023-05-23 | 江苏港科环保材料有限公司 | Sludge treatment process |
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| CN111396899A (en) * | 2020-04-10 | 2020-07-10 | 海诺尔环保产业股份有限公司 | Sludge drying and incineration integrated treatment system |
| CN112174478A (en) * | 2020-11-03 | 2021-01-05 | 长春市城建维护集团股份有限公司 | Sludge treatment device and process capable of cooperatively treating odor of sewage treatment plant |
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