CN109825317A - A kind of house refuse thermal pyrolysis device and method - Google Patents
A kind of house refuse thermal pyrolysis device and method Download PDFInfo
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- CN109825317A CN109825317A CN201910251931.1A CN201910251931A CN109825317A CN 109825317 A CN109825317 A CN 109825317A CN 201910251931 A CN201910251931 A CN 201910251931A CN 109825317 A CN109825317 A CN 109825317A
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- 238000000197 pyrolysis Methods 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 title claims description 10
- 238000002309 gasification Methods 0.000 claims abstract description 81
- 239000007789 gas Substances 0.000 claims abstract description 55
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 30
- 238000011084 recovery Methods 0.000 claims abstract description 20
- 230000008676 import Effects 0.000 claims abstract description 11
- 238000002485 combustion reaction Methods 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 239000000567 combustion gas Substances 0.000 claims description 16
- 239000010865 sewage Substances 0.000 claims description 14
- 239000000047 product Substances 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 8
- 239000012265 solid product Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000010926 purge Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000000571 coke Substances 0.000 claims 1
- 239000004577 thatch Substances 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- 238000010992 reflux Methods 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- -1 small molecule Hydrocarbon Chemical class 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Processing Of Solid Wastes (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
A kind of house refuse thermal pyrolysis device is integrated in a container, including screw-feeder, revolution pyrolysis gasification furnace, burner, the import of screw-feeder connect with small storehouse is fed, and outlet connects with the import of furnace body；Burner protrudes into furnace from the entrance of furnace body；Revolution pyrolysis gasification furnace is supported on support roller, and outlet is provide with a bell, inside be circumferentially laid with more recuperation pipelines, outer cover is equipped with the air bin being sent into combustion air in furnace；The inside of the bell is equipped with support plate and forms gas recovery bin therebetween, is additionally provided with ash hole, vapor entrance thereon, and carbon is further reacted with vapor in the semicoke after pyrolysis is made when unloading ash, reduces out the tar content of furnace gases；Pyrolysis gas in every recuperation pipeline is collected in the outlet pipe on the left of furnace body from the gas recovery bin on the right side of furnace body, and the heat in pyrolysis gas is conducted to the rubbish outside pipe in reflux course, enables all heat cascade utilizations, improves the thermal efficiency.
Description
Technical field
The invention belongs to solid waste resource recovery technical field of comprehensive utilization more particularly to a kind of domestic garbage pyrolysis gas
Change device and method.
Background technique
China is that the most country of world population and the whole world rubbish among the best generate state, a large amount of rubbish
Have become Enemy of the State, the accumulation of rubbish and the problems such as can not handling have become influence we to build beautiful rural sustainable
One of important topic of development.There are mainly two types of the domestic rubbish disposal modes that China uses at present: concentrating landfill and burns hair
Electricity, however both processing modes are respectively present respective short slab: 1. concentrate landfill, and there is no fundamentally solve rubbish to ask
Topic, but rubbish has been left for descendants；2. power generation by waste combustion by size limit, can only be built in densely populated city week
Side can not cover village, counties and townships, and investment is big, exhaust-gas treatment is not thorough, easily causes secondary pollution, taking up a large area and periphery
Resident's contradiction is serious.
Summary of the invention
To overcome deficiency existing for existing domestic rubbish disposal mode, it is an object of the invention to propose a kind of automation journey
Degree is high, occupied area is small, construction cost is low, free from environmental pollution, the thorough house refuse thermal pyrolysis device of garbage disposal and side
Method.
The purpose of the present invention is realized using following technical scheme.A kind of domestic garbage pyrolysis proposed according to the present invention
Gasification installation is integrated in a container, including screw-feeder, revolution pyrolysis gasification furnace, burner, screw-feeder
Import connects with small storehouse is fed, and exports and connects with the import of revolution pyrolysis gasification furnace；Burner is from revolution pyrolysis gasification furnace
Entrance protrudes into furnace, as ignition source；Revolution pyrolysis gasification furnace is supported on multiple support rollers, and outlet is provide with a bell,
Inside is circumferentially laid with more recuperation pipelines, and outer cover is equipped with the air bin being sent into combustion air in furnace；The bell
Inside is equipped with support plate and forms gas recovery bin therebetween, and bell bottom is equipped with ash hole, and support plate lower part is equipped with and is used for
Multiple through-holes of gasification product inflow gas recovery bin, the bell opposite with multiple through-holes are equipped with vapor entrance；Every
Recuperation pipeline axially extends in support plate along furnace body, and both ends are connected to gas recovery bin, outlet pipe respectively, out
Feed channel is installed in the entrance of revolution pyrolysis gasification furnace；The outlet pipe, bell, air bin and revolution pyrolysis gasification furnace
Sealing element is respectively equipped between furnace body.
Further, the bottom of the outlet pipe is set as along the axial main body with cavity, which is pyrolyzed from revolution
The entrance of gasification furnace protrudes into furnace；Every recuperation pipeline is connected to aforementioned body.
Further, cavity and revolution pyrolysis gas of the outlet of the screw-feeder across the main body of outlet pipe bottom
The import for changing furnace connects；The burner is between screw-feeder and the main body of outlet pipe bottom.
Further, the air bin bottom is equipped with air intlet, the furnace of the revolution pyrolysis gasification furnace covered by air bin
Circumferentially be machined with multiple air inlets combustion air being sent into furnace on body.
Further, each through-hole is in skewed upwards, and the bell main body below gas recovery bin is set as just
In the inclined-plane of gasification product flowing.
Further, the inside of the revolution pyrolysis gasification furnace is divided into dry section, dry distillation area, pyrolysis gas from left to right
Change area；Burner protrudes into dry section, and air bin is set in outside the furnace body of dry distillation area.
Further, the packaging upper box part is installed with downsteam processing facilities comprising the urgency being sequentially connected in series by pipeline
Cold tar remover, filter, separator, roots blower, pressurizer tank, spray column, the outlet of the outlet pipe and chilling devoke
The upper outlet of the inlet communication of oily device, spray column exports combustion gas.
Further, the downsteam processing facilities further include tar and water purging line, the tar and water purging line according to
The secondary blowdown for being connected to and being located at spray column lower part with the outlet of filter lower part, the sewage draining exit of spray column lower part, oil water separator
Pipeline between mouth, oil water separator is equipped with pump.
The purpose of the present invention also uses following technical scheme to realize.A kind of domestic garbage pyrolysis proposed according to the present invention
Gasification process, comprising the following steps:
(1) house refuse is ground into the particle that diameter is 15~50mm, is poured into after screening in the small storehouse of charging, feeds small storehouse
Interior garbage raw material calorific value is 2500~3200Kcal/kg；
(2) revolution pyrolysis gasification furnace is powered, heating preheating pyrolytic gasification area, and by turning motor with 2~6r/min
Revolving speed driving furnace body rotation；
(3) when heating reaches predetermined temperature in pyrolytic gasification area, it is former that the rubbish in small storehouse will be fed by screw-feeder
Material is added in revolution pyrolysis gasification furnace, while air being sent into revolution pyrolysis gasification furnace by air bin, starts burner, into
The reaction of row pyrolytic gasification；The charging rate of screw-feeder is 40~60r/min, reaction time 60min, the predetermined temperature
It is 200 DEG C -800 DEG C；
(4) solid product obtained after reacting is drawn off from ash hole, sprays vapor towards solid product while unloading ash,
The vapor of injection and the garbage raw material mass ratio that revolution pyrolysis gasification furnace is added are 0.1:1；The gasification product obtained after reaction
Chilling tar remover, which is sent into, through gas recovery bin, recuperation pipeline, outlet pipe carries out tar removing, tar and condensate from filtering
The outlet of device lower part is discharged；Gas after tar removing is sent into separator and is dusted, the gas after dedusting be sent into roots blower into
Row pressurization, the gas after pressurization are sent into pressurizer tank, and the stable gas of pressure, which is sent into spray column, to be reacted, spray column top
Outlet output combustion gas, lower part sewage draining exit discharge output tar and condensate；
(5) combustion gas is sent into burner, the combustion gas for being sent into burner accounts for 20~40% of combustion gas made from step (4).
Further, the tar and condensate that the step (4) generates are sent into oil water separator after pump pressurization, grease point
The sewage be stored in tar storage tank from the tar that device is separated, separated is sent into sewage plant.
A kind of house refuse thermal pyrolysis device of the present invention and method can be brought the following benefits:
1, using revolution pyrolysis gasification furnace technology, compared with common fixed bed, fluidization at present, have fuel by
It is hot uniformly, be not easy that coking, pyrolytical condition parameter (time and temperature) can be automatically controlled precisely, system is reliable for operation, gasification efficiency
It is high；
2, vapor entrance is set at ash hole, carbon is further reacted with vapor in the semicoke after can making pyrolysis,
CO is generated, gasification efficiency is not only improved, and improve pyrolysis gas air outlet temperature, the hydrocarbons of macromolecular is made to be cracked into small molecule
Hydrocarbon gas, reduce out the tar content of furnace gases, improve the calorific value of gasification efficiency and pyrolysis gas；
3, pyrolysis gas recuperation pipeline can be such that the heat in pyrolysis gas is conducted in the rubbish outside pipe, make all heats
Can cascade utilization, improve the thermal efficiency；
4, the gas of pyrolytic gasification outlet of still is turned round through over-quenching tar remover, filter, separator, spray column, grease
Separator removes dust, tar etc. and obtains clean fuel gas, and combustion gas meets the related matter in " Code for design of city gas engineering " GB50028
Figureofmerit meets the air inlet requirement of internal combustion engine generator, and wherein tar content is less than 5mg/Nm3；
5, device is integrated in the container of a 40GP, and gas purification treating device, transport is arranged in the top of container
Conveniently, take up an area less, investment cost is low, strong applicability.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of house refuse thermal pyrolysis device embodiment one of the present invention.
Fig. 2 is a kind of schematic diagram of house refuse thermal pyrolysis device embodiment two of the present invention.
Fig. 3 is the A-A sectional view in Fig. 1.
[main element symbol description]
1: feeding small storehouse 2: screw-feeder 3: revolution pyrolysis gasification furnace
301: dry section 302: dry distillation area 303: pyrolytic gasification area
4: bell 5: support plate 6: vapor entrance
7: ash hole 8: recuperation pipeline 9: support roller
10: air bin 1001: air intlet 11: turning motor
1201: first seal 1202: second seal 1203: third sealing element
13: burner 14: outlet pipe 15: chilling tar remover
16: filter 17: separator 18: roots blower
19: pressurizer tank 20: spray column 21: pump
22: oil water separator 23: tar holding vessel 24: container
Specific embodiment
The present invention is described in further detail below by specific embodiment and in conjunction with attached drawing.
Embodiment one
Fig. 1, Fig. 2 are please referred to, a kind of house refuse thermal pyrolysis device is integrated in the container 24 of a 40GP, packet
The small storehouse 1 of charging, screw-feeder 2, revolution pyrolysis gasification furnace 3, burner 13, outlet pipe 14 are included, turns round pyrolysis gasification furnace 3
It holds on two support rollers 9, the sprocket wheel of input end, which is connected by chain with turning motor 11, to be driven, and turning motor 11 is to become
Frequency motor can be such that furnace body is rotated according to the rate of setting, direction.The revolution pyrolysis gasification furnace 3 is axially hollow furnace
Body, outlet end is provide with a bell 4, external to be set with an air bin 10.The inside of the bell is installed with support plate 5, its bottom
Equipped with ash hole 7, the confined space between the support plate 5 and bell 4 is set as the lower part of gas recovery bin 25 and the support plate
Having in multiple through-holes 501 skewed upwards, the bell main body opposite with multiple through-holes 501 is equipped with vapor entrance 6,
Vapor entrance 6 sprays vapor to the semicoke (solid product) after pyrolysis when unloading ash, make carbon in semicoke and vapor into
Single step reaction, the gasification product for reacting generation flow in gas recovery bin 25 through multiple through-holes 501.
The bottom of outlet pipe 14 is set as along the axial annular body with cavity, which passes through the import of furnace body
It holds and protrudes into revolution pyrolysis gasification furnace 3.The revolution pyrolytic gasification furnace interior circumferentially arranged with more recuperation pipelines 8,
Every recuperation pipeline 8 axially extends in support plate 5 along revolution pyrolysis gasification furnace, input end, outlet end respectively with
Gas recovery bin, outlet pipe connection, reacted during unloading ash generation gasification product can out of gas recovery bin 25 edge
More recuperation pipelines 8 be collected in outlet pipe 14 from right to left.
The input end of screw-feeder 2, which is equipped with, feeds small storehouse 1, and outlet end passes through the annular body of 14 bottom of outlet pipe
Cavity stretch to revolution pyrolysis gasification furnace 3 in, for the household garbage particles fed in small storehouse to be delivered to revolution pyrolysis gas
Change in furnace.
Burner 13 is supported between the annular body and screw-feeder 2 of 14 bottom of outlet pipe and protrudes into revolution pyrolysis
In gasification furnace 3, the ignition point of pyrolytic reaction is carried out as household garbage particles.
First is equipped between the annular body of 14 bottom of outlet pipe and the furnace body for turning round 3 input end of pyrolysis gasification furnace
Sealing element 1201, outlet are connected to the downsteam processing facilities for being installed in 27 top of container.
It is equipped with second seal 1202 between the bell 4 and the furnace body for turning round 3 outlet end of pyrolysis gasification furnace, prevents from being pyrolyzed
The gasification product evolution that reaction generates；The gasification that bell main body positioned at 25 lower section of gas recovery bin is set as generating convenient for reaction produces
The inclined-plane that object flows up.
Third sealing element 1203 is equipped between the air bin 10 and the furnace body for turning round pyrolysis gasification furnace 3, by air bin institute
The furnace body of the revolution pyrolysis gasification furnace of covering is circumferentially machined with multiple air inlets, and the bottom of the air bin is equipped with air intlet
1001, air intlet 1001 is connected to gas source, and air enters air bin 10 through air intlet when device works, in third sealing element
Limitation under enter in revolution pyrolysis gasification furnace 3 via multiple air inlets of furnace body outer wall, it is anti-convenient for household garbage particles pyrolysis
The progress answered.
Specifically, the revolution pyrolysis gasification furnace 3 have certain tilt angle, inside from left to right (i.e. by import
To the direction of outlet) it is divided into dry section 301, dry distillation area 302, pyrolytic gasification area 303, burner 13 protrudes into revolution pyrolysis gas
In the dry section 301 for changing furnace 3, air bin 10 is set in outside the furnace body of dry distillation area 302.
Embodiment two
On the basis of example 1, referring to Fig. 1, the downsteam processing facilities include the urgency being sequentially connected in series by pipeline
Cold tar remover 15, filter 16, separator 17, roots blower 18, pressurizer tank 19, spray column 20, the outlet pipe 14
The inlet communication of outlet and chilling tar remover 15, the pyrolytic gasification product that domestic garbage pyrolysis reaction generates is through gas recovery bin
26, more reflux lines 8, outlet pipe 14 are sent into chilling tar remover 15 and carry out tar removing, tar and condensate from filter 16
The outlet of lower part is discharged；Gas feeding separator 17 after tar removing is re-fed into roots blower 18 after being dusted and pressurizes,
It is sent into pressurizer tank 19 after pressurization；The stable gas of pressure is after the processing of spray column 20, upper part outlet output clean fuel gas, portion
(30%) combustion gas is divided to be sent into burner 13 by pipeline for its use；The combustion gas of rich (70%) can be used for internal combustion engine power generation or
Resident living.
Further, the downsteam processing facilities further include tar and water purging line, the tar and water purging line
It is connected to respectively with the sewage draining exit of the outlet of 16 lower part of filter, 20 lower part of spray column, the tar and condensate of discharge are after pump pressurization
It is sent into oil water separator 22；The tar that oil water separator 22 is separated is stored in tar storage tank 23 by pipeline (can make
For product sale), the sewage separated is further processed by pipeline feeding sewage plant.
Specifically, the chilling tar remover 15, filter 16, separator 17, roots blower 18, pressurizer tank 19, spray
Tower 20, oil water separator 22, tar storage tank 23 are existing mature equipment, this will not be detailed here its specific structure.
Embodiment three
On the basis of example 2, the invention proposes a kind of domestic garbage pyrolysis gasification process, comprising the following steps:
(1) house refuse is ground into diameter is to pour into the small storehouse of charging after the particle of 15~50mm, screening, feeds small storehouse
Interior garbage raw material calorific value is 3000Kcal/kg；
(2) revolution pyrolysis gasification furnace is powered, heating preheating pyrolytic gasification area, while furnace body is driven with the revolving speed of 5r/min
Rotation；
(3) when heating reaches predetermined temperature in pyrolytic gasification area, it is former that the rubbish in small storehouse will be fed by screw-feeder
Material is added in revolution pyrolysis gasification furnace, while air being sent into revolution pyrolysis gasification furnace, starts burner, carries out pyrolytic gasification
Reaction；The charging rate of screw-feeder is 50r/min, and reaction time 60min, the predetermined temperature is 800 DEG C；
(4) solid product obtained after reacting is drawn off from ash hole, is steamed water by vapor entrance while unloading ash
Gas is sprayed towards solid product, and according to the garbage raw material quality that revolution pyrolysis gasification furnace is added, 1kg garbage raw material sprays into about 0.1kg
Vapor；The gasification product obtained after reaction is sent into chilling tar removing through gas recovery bin, recuperation pipeline, outlet pipe
Device carries out tar removing, tar and condensate and is discharged from the outlet of filter lower part；Gas after tar removing is sent into separator and is removed
Dirt, the gas after dedusting are sent into roots blower and pressurize, and the gas after pressurization is sent into pressurizer tank, and the stable gas of pressure is sent
Enter in spray column and reacted, tar and condensate is discharged in the outlet output clean fuel gas on spray column top, the sewage draining exit of its underpart；
(5) combustion gas for obtaining step (4) is sent into burner.
Specifically, the tar and condensate that generate in step (4) are sent into oil water separator after pump pressurization, oil water separator
The sewage that the tar deposit tar storage tank separated is interior, separates is sent into sewage plant.
Specifically, the combustion gas for being sent into burner in step (5) accounts for 30% of combustion gas made from step (4).
The above is only the preferred embodiment of the invention patent, any person skilled in the art, not
It is detached from the art of this patent aspects, any simple modification made to the above embodiment of the technical spirit according to this patent,
Equivalent variations and modification, in the range of still falling within the art of this patent scheme.
Claims (10)
1. a kind of house refuse thermal pyrolysis device, it is characterised in that the device is integrated in a container, including spiral into
Glassware, revolution pyrolysis gasification furnace, burner, the import of screw-feeder connect with small storehouse is fed, outlet and revolution pyrolysis gas
The import for changing furnace connects；Burner protrudes into furnace from the entrance of revolution pyrolysis gasification furnace, as ignition source；Turn round pyrolytic gasification
Furnace is supported on multiple support rollers, outlet be provide with a bell, inside be circumferentially laid with more recuperation pipelines, outside
Be set with air bin combustion air being sent into furnace；It is equipped with support plate inside the bell and forms gas recovery bin therebetween,
Bell bottom is equipped with ash hole, and support plate lower part is equipped with multiple through-holes for gasification product inflow gas recovery bin, and multiple
The opposite bell of through-hole is equipped with vapor entrance；Every recuperation pipeline axially extending in support plate along furnace body,
Its both ends is connected to gas recovery bin, outlet pipe respectively, and outlet pipe is installed in the entrance of revolution pyrolysis gasification furnace；It is described
Sealing element is respectively equipped between outlet pipe, bell, air bin and the furnace body for turning round pyrolysis gasification furnace.
2. house refuse thermal pyrolysis device according to claim 1, it is characterised in that the bottom of the outlet pipe is set
For along the axial main body with cavity, which protrudes into furnace from the entrance of revolution pyrolysis gasification furnace；Every recuperation pipe
Road is connected to aforementioned body.
3. house refuse thermal pyrolysis device according to claim 2, it is characterised in that the outlet of the screw-feeder
Cavity across the main body of outlet pipe bottom connects with the import of revolution pyrolysis gasification furnace；The burner is located at spiral charging
Between device and the main body of outlet pipe bottom.
4. house refuse thermal pyrolysis device according to claim 1, it is characterised in that the air bin bottom is equipped with sky
Gas import, being circumferentially machined on the furnace body for the revolution pyrolysis gasification furnace that air bin covers will be multiple in combustion air feeding furnace
Air inlet.
5. house refuse thermal pyrolysis device according to claim 1, it is characterised in that each through-hole is in updip
Inclined-plane ramp-like, that the bell main body below gas recovery bin is set as convenient for gasification product flowing.
6. house refuse thermal pyrolysis device according to claim 1, it is characterised in that the revolution pyrolysis gasification furnace
Inside is divided into dry section, dry distillation area, pyrolytic gasification area from left to right；Burner protrudes into dry section, and air bin is set in
Outside the furnace body of dry distillation area.
7. house refuse thermal pyrolysis device according to claim 1 to 6, it is characterised in that the container
Top is installed with downsteam processing facilities comprising chilling tar remover, filter, separator, sieve being sequentially connected in series by pipeline
Thatch blower, pressurizer tank, spray column, the outlet of the outlet pipe and the inlet communication of chilling tar remover, the top of spray column
Outlet output combustion gas.
8. house refuse thermal pyrolysis device according to claim 7, it is characterised in that the downsteam processing facilities also wrap
Include tar and water purging line, the tar and water purging line successively with the outlet of filter lower part, the blowdown of spray column lower part
Mouth, oil water separator connection and the pipeline being located between the sewage draining exit of spray column lower part, oil water separator are equipped with pump.
9. a kind of domestic garbage pyrolysis gasification process, it is characterised in that the following steps are included:
(1) house refuse is ground into the particle that diameter is 15~50mm, pours into the small storehouse of charging, is fed in small storehouse after screening
Garbage raw material calorific value is 2500~3200Kcal/kg；
(2) revolution pyrolysis gasification furnace is powered, heating preheating pyrolytic gasification area, and turned by turning motor with 2~6r/min
Speed driving furnace body rotation；
(3) when in pyrolytic gasification area, heating reaches predetermined temperature, the garbage raw material fed in small storehouse is added by screw-feeder
Enter to turn round in pyrolysis gasification furnace, while air being sent into revolution pyrolysis gasification furnace by air bin, starts burner, carry out heat
Solve gasification reaction；The charging rate of screw-feeder is 40~60r/min, reaction time 60min, and the predetermined temperature is
200℃-800℃；
(4) solid product obtained after reacting is drawn off from ash hole, is sprayed vapor towards solid product while unloading ash, injection
Vapor and be added revolution pyrolysis gasification furnace garbage raw material mass ratio be 0.1:1；The gasification product obtained after reaction is through gas
Body recovery bin, recuperation pipeline, outlet pipe are sent into chilling tar remover and carry out tar removing, and tar and condensate are under filter
The outlet in portion is discharged；Gas after tar removing is sent into separator and is dusted, and the gas after dedusting is sent into roots blower and is added
Pressure, the gas after pressurization are sent into pressurizer tank, and the stable gas of pressure, which is sent into spray column, to be reacted, and spray column top goes out
Mouth output combustion gas, the sewage draining exit discharge output tar of lower part and condensate；
(5) combustion gas is sent into burner, the combustion gas for being sent into burner accounts for 20~40% of combustion gas made from step (4).
10. domestic garbage pyrolysis gasification process according to claim 9, it is characterised in that the coke that the step (4) generates
Oil and condensate are sent into oil water separator after pump pressurization, in the tar deposit tar storage tank that oil water separator is separated,
The sewage separated is sent into sewage plant.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910251931.1A CN109825317A (en) | 2019-03-29 | 2019-03-29 | A kind of house refuse thermal pyrolysis device and method |
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| CN201910251931.1A CN109825317A (en) | 2019-03-29 | 2019-03-29 | A kind of house refuse thermal pyrolysis device and method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110331004A (en) * | 2019-08-06 | 2019-10-15 | 广州骏鹰环境能源科技有限公司 | A kind of box pyrolysis gasification furnace equipped with doleiform reaction kettle |
| CN110760330A (en) * | 2019-11-25 | 2020-02-07 | 长沙凯天工研院环保服务有限公司 | Organic solid waste pyrolysis and in-situ modification device |
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| CN114308988A (en) * | 2022-01-12 | 2022-04-12 | 南京工业大学 | Skid-mounted medical waste isothermal pyrolysis treatment system |
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