CN203991628U - A kind for the treatment of apparatus that efficiently utilizes MSW heating value - Google Patents

A kind for the treatment of apparatus that efficiently utilizes MSW heating value Download PDF

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Publication number
CN203991628U
CN203991628U CN201320712874.0U CN201320712874U CN203991628U CN 203991628 U CN203991628 U CN 203991628U CN 201320712874 U CN201320712874 U CN 201320712874U CN 203991628 U CN203991628 U CN 203991628U
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China
Prior art keywords
lime
ash
pyrogenation
gas
gasification furnace
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CN201320712874.0U
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Chinese (zh)
Inventor
张磊
杨久俊
赵明银
刘汉桥
王雪平
杨沛森
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天津城建大学
河南华天环保科技有限公司
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Priority to CN201320712874.0U priority Critical patent/CN203991628U/en
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Publication of CN203991628U publication Critical patent/CN203991628U/en

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Abstract

The utility model discloses a kind for the treatment of apparatus that efficiently utilizes MSW heating value, comprise domestic garbage crusher, rotary drying kiln, homogenizing blender, single lead screw ex truding briquetting machine, pyrogenation and carbonization gasification furnace, gas fired-boiler, heat exchanger, exhaust gas cleaner, pyrolysis combustion gas use device, heat recovery device and lime-ash recycle device; House refuse is first through crusher in crushing, then dry through rotary drying kiln, then sends into extruder grain in single lead screw ex truding briquetting machine after being mixed in homogenizing blender; Be transported to afterwards in pyrogenation and carbonization gasification furnace and react, the lime-ash of generation through its underpart the outlet of set lime-ash and auger stripper discharge to reclaim and be used as building materials raw material; The utility model can fully utilize the potential calorific value of domestic waste, and can avoid in garbage processing procedure easily producing the appearance of bioxin, really realizes pollution-free zero-emission, has realized innoxious, minimizing and the recycling of house refuse.

Description

A kind for the treatment of apparatus that efficiently utilizes MSW heating value

Technical field

The utility model relates to a kind for the treatment of apparatus that efficiently utilizes MSW heating value, belongs to field of environment protection.

Background technology

Statistics show, within 2011, China's domestic waste amount of clearing reaches 1.6 hundred million tons.At present, built together 683, domestic garbage was harmlessly treated factory of China, ability to be harmless 41.1 ten thousand ton per days, level of harmless treatment rate of life waste 79.7%.Because current China Urbanization Progress is quick, house refuse is increased sharply, as a whole, except garbage disposal ability is slightly inadequate, level its construction level and the running quality problem not high, that auxiliary facility is incomplete low, treatment facility of garbage disposal are more outstanding, thereby pollution hidden trouble is the significant problem facing at present.

The processing mode of China's municipal refuse is mainly to adopt the several methods such as sanitary landfills, compost, burning and Harmless and Comprehensive Disposal.Landfill is that house refuse is treated as a kind of refuse, and its processing method is mainly conceived to how to eliminate harm and reduces volume.Due to the increase of the in short supply and environmental pressure of land resource, now reduce gradually or be prohibited from using.Compost treatment operating cost is low, but also exists that compost quality is not high, compost oversize is processed and problem that smell, sewage are larger etc. to surrounding environment influence simultaneously.Burning disposal is domestic and international a kind of comparatively common processing mode, and after burning, the volume of house refuse can reduce 80~90%, can realize minimizing, the evilization of going out and resource simultaneously.But because MSW heating value is lower, thereby burning method cost is higher, and the tail gas burning easily produces bioxin pollution.

Summary of the invention

Lower for MSW heating value, utilization rate is low and burning disposal easily produces the problem of bioxin, the inventor provides a kind for the treatment of apparatus that efficiently utilizes MSW heating value, this device can efficiently utilize the organic component in house refuse to generate fuel gas, can avoid again the generation of bioxin, there is the features such as refuse thermal value utilization rate is high, technique is simple.

The purpose of this utility model is to provide a kind for the treatment of apparatus that efficiently utilizes MSW heating value.

For achieving the above object, solution of the present utility model is: it comprises disintegrating machine (1), rotary drying kiln (2), homogenizing blender (3), single lead screw ex truding briquetting machine (4), pyrogenation and carbonization gasification furnace (5), gas fired-boiler (14), heat exchanger (16), exhaust gas cleaner (17), pyrolysis combustion gas use device, heat recovery device and lime-ash recycle device.

House refuse is first through disintegrating machine (1) fragmentation, then pass through rotary drying kiln (2) dry, after being mixed in homogenizing blender (3), send into the interior extruder grain of single lead screw ex truding briquetting machine (4) again, be transported to afterwards in pyrogenation and carbonization gasification furnace (5) and react; Pyrogenation and carbonization gasification furnace (5) inside is divided into dryer section, pyrogenation and carbonization gasification section and three regions of high-temperature calcination section, and dryer section top is provided with raw gas outlet (15), high-temperature calcination section is provided with saturated vapor entrance (10), fuel gas entrance (11), auger stripper (6) and lime-ash outlet (7); Air and saturated vapor enter from saturated vapor entrance (10), and fuel gas enters from fuel gas entrance (11); The raw gas that pyrogenation and carbonization gasification furnace (5) produces is extracted out through raw gas outlet (15), be delivered to after saturated scrubbing tower (13) is removed steam and tar and pass through distributor (12), a part is sent to fuel gas entrance (11) and enters the calcining section C of pyrogenation and carbonization gasification furnace (5), and another part is sent into gas fired-boiler (14); The lime-ash that pyrogenation and carbonization gasification furnace (5) produces is discharged from lime-ash outlet (7) by auger stripper (6), enters in the cooling storehouse of lime-ash (8).

When application the utility model, fuel gas, tar and lime-ash that pyrogenation and carbonization gasification furnace produces can be recycled, cooling rear the recovery as the prepared using of preparing building material product of lime-ash, and waste heat recovery when lime-ash is cooling continues to use to rotary drying kiln.

Pyrogenation and carbonization gasification installation of the present utility model, inside is divided into dryer section, pyrogenation and carbonization gasification section and three regions of high-temperature calcination section; The temperature of dryer section A is 80-180 DEG C; The temperature of pyrogenation and carbonization gasification section B is 180-1100 DEG C; The temperature of high-temperature calcination section C is 1100-1200 DEG C; At dryer section A, pyrogenation and carbonization gasification section B, air coefficient is 0.6-0.8; At calcining section C, air coefficient is 1.05-1.2.

Pyrolysis combustion gas use device of the present utility model, comprises and can remove the saturated scrubbing tower of steam and tar in raw gas and distributor that can distribution of gas.

Heat recovery device of the present utility model, comprises that the cooling storehouse of lime-ash carries the pipeline of hot gas and gas fired-boiler to carry the pipeline of hot gas to rotary drying kiln to rotary drying kiln.

Lime-ash recycle device of the present utility model comprises the auger stripper of being located at pyrogenation and carbonization gasification installation bottom and the cooling storehouse of lime-ash that holds lime-ash.

Feature of the present utility model and advantage:

1. the utility model, according to the low-calorie characteristic of house refuse, fully utilizes the potential calorific value of domestic waste, and utilization rate of heat value is high, and zero-emission that whole handling process is pollution-free has thoroughly realized innoxious, minimizing and the recycling of house refuse,

2. the utility model can produce fuel gas and fuel gas is recycled in processing house refuse, has realized the efficient utilization of MSW heating value.

3 the utility model can be avoided the generation of bioxin in the time processing house refuse.

Brief description of the drawings

Accompanying drawing 1 is a kind of schematic diagram of this device, wherein: 1. disintegrating machine; 2. rotary drying kiln; 3. homogenizing blender; 4. single lead screw ex truding briquetting machine; 5. pyrogenation and carbonization gasification furnace; 6. auger stripper; 7. lime-ash outlet; 8. the cooling storehouse of lime-ash; 9. blower fan; 10. saturated vapor entrance; 11. fuel gas entrances; 12. distributors; 13. saturated scrubbing towers; 14. gas fired-boilers; 15. raw gas outlets; 16. heat exchangers; 17. exhaust gas cleaners.

Detailed description of the invention

Below in conjunction with accompanying drawing, structure of the present utility model and operation principle are described in further detail.

Referring to accompanying drawing, first house refuse is crushed to the following particle of 5mm through disintegrating machine 1, be then dried to moisture content through rotary drying kiln 2 and be less than 15%; Dried household garbage particles, to after fully mixing in homogenizing blender 3, is sent into the interior ball up granulation of single lead screw ex truding briquetting machine 4.House refuse pellet is transported in pyrolytic gasification destructive distillation device 5 and reacts afterwards, produces fuel gas and tar and is calcined.

The inside of pyrogenation and carbonization gasification furnace 5 can be divided into dryer section A, pyrogenation and carbonization gasification section B and calcining section tri-regions of C; First house refuse pellet enters 80-180 DEG C of dryer section A and deviates from residual moisture; At 180-1100 DEG C of pyrogenation and carbonization gasification section B, produce raw gas, the composition of raw gas is alkanes combustible gas CmHn, H2, CO and steam etc. substantially; Subsequently, enter the high-temperature calcination section C of 1100-1200 DEG C, through high-temperature calcination, after-flame organic matter.At dryer section A, the pyrogenation and carbonization gasification section B of pyrogenation and carbonization gasification furnace 5, air coefficient is 0.6-0.8, in anaerobic condition, can contain the generation of the harmful substances such as bioxin.At a calcining section C, air and saturated vapor enter from saturated vapor entrance 10, and fuel gas enters from 11, and air coefficient is 1.05-1.2, provides sufficient amount of oxygen to make the organic completing combustion in rubbish.

The raw gas that in pyrogenation and carbonization gasification furnace 5, reaction produces is extracted out through raw gas outlet 15, is delivered to saturated scrubbing tower 13 and removes steam and tar; Afterwards, through the fuel gas of washing, purifying, by distributor 12, a part is sent to calcining section C that fuel gas entrance 11 enters pyrogenation and carbonization gasification furnace 5 as combustion-supporting fuel, and another part is sent into gas fired-boiler 14 and used as fuel; The waste heat of gas fired-boiler can also cause rotary drying kiln 2 and further recycle.

The tar washing out in saturated scrubbing tower 13 is also recyclable, and the calcining section C that sends into pyrogenation and carbonization gasification furnace 5 uses as combustion-supporting fuel.

The lime-ash producing after house refuse process pyrogenation and carbonization gasification furnace 5, discharges from lime-ash outlet 7 by auger stripper 6, enters into the cooling storehouse 8 of lime-ash, the cooling rear raw material as building material product; Or with blower fan 9, the lime-ash in cooling lime-ash storehouse 8 being carried out coolingly, the hot blast producing when cooling can cause rotary drying kiln 2 for dry house refuse through pipeline.The tail gas of discharging from rotary drying kiln 2 can reclaim heat by heat exchanger 16, determines further to pass through whether again purifier 17 afterwards according to laboratory indexes, after gas is up to standard, enters atmosphere.

Claims (4)

1. one kind is efficiently utilized the treating apparatus of MSW heating value, comprise disintegrating machine (1), rotary drying kiln (2), homogenizing blender (3), single lead screw ex truding briquetting machine (4), it is characterized in that it also comprises pyrogenation and carbonization gasification furnace (5), gas fired-boiler (14), heat exchanger (16), exhaust gas cleaner (17), pyrolysis combustion gas use device, heat recovery device and lime-ash recycle device; House refuse is first through disintegrating machine (1) fragmentation, then pass through rotary drying kiln (2) dry, after being mixed in homogenizing blender (3), send into the interior extruder grain of single lead screw ex truding briquetting machine (4) again, be transported to afterwards in pyrogenation and carbonization gasification furnace (5) and react; Pyrogenation and carbonization gasification furnace (5) inside is divided into dryer section, pyrogenation and carbonization gasification section and three regions of high-temperature calcination section, and dryer section top is provided with raw gas outlet (15), high-temperature calcination section is provided with saturated vapor entrance (10), fuel gas entrance (11), auger stripper (6) and lime-ash outlet (7); Air and saturated vapor enter from saturated vapor entrance (10), and fuel gas enters from fuel gas entrance (11); The raw gas that pyrogenation and carbonization gasification furnace (5) produces is extracted out through raw gas outlet (15), be delivered to after saturated scrubbing tower (13) is removed steam and tar and pass through distributor (12), the calcining section (C) that a part is sent to fuel gas entrance (11) and enters pyrogenation and carbonization gasification furnace (5), another part is sent into gas fired-boiler (14); The lime-ash that pyrogenation and carbonization gasification furnace (5) produces is discharged from lime-ash outlet (7) by auger stripper (6), enters in the cooling storehouse of lime-ash (8).
2. a kind for the treatment of apparatus that efficiently utilizes MSW heating value as claimed in claim 1, is characterized in that pyrolysis combustion gas use device comprises can remove the saturated scrubbing tower (13) of steam and tar in raw gas and distributor (12) that can distribution of gas.
3. a kind for the treatment of apparatus that efficiently utilizes MSW heating value as claimed in claim 1, is characterized in that heat recovery device comprises: the cooling storehouse of lime-ash carries the pipeline of hot gas and gas fired-boiler to carry the pipeline of hot gas to rotary drying kiln to rotary drying kiln.
4. a kind for the treatment of apparatus that efficiently utilizes MSW heating value as claimed in claim 1, is characterized in that lime-ash recycle device comprises the auger stripper (6) of being located at pyrogenation and carbonization gasification furnace (5) bottom and the cooling storehouse of lime-ash (8) that holds lime-ash.
CN201320712874.0U 2013-11-12 2013-11-12 A kind for the treatment of apparatus that efficiently utilizes MSW heating value CN203991628U (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105855268A (en) * 2016-04-29 2016-08-17 田原宇 Leachate cleaning and high-efficient treatment device used during gasification of household garbage
CN105921497A (en) * 2016-06-17 2016-09-07 北京神雾环境能源科技集团股份有限公司 Resourceful comprehensive treatment method and system for household garbage
CN105921498A (en) * 2016-06-17 2016-09-07 北京神雾环境能源科技集团股份有限公司 Household garbage resourceful comprehensive treatment method and treatment system
CN105936832A (en) * 2016-07-01 2016-09-14 北京神雾环境能源科技集团股份有限公司 System and method utilizing water steam in garbage pyrolysis rotary hearth furnace to dry garbage
CN106016276A (en) * 2016-07-01 2016-10-12 北京神雾环境能源科技集团股份有限公司 System and method for drying garbage by recycling waste heat of pyrolytic carbon through steam in rotary hearth furnace
CN106077029A (en) * 2016-06-17 2016-11-09 北京神雾环境能源科技集团股份有限公司 Domestic garbage resource integrated conduct method and processing system
CN106111675A (en) * 2016-08-12 2016-11-16 北京神雾环境能源科技集团股份有限公司 Domestic garbage resource integrated conduct method and processing system
CN106111657A (en) * 2016-06-17 2016-11-16 北京神雾环境能源科技集团股份有限公司 Domestic garbage resource integrated conduct method and processing system

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105855268A (en) * 2016-04-29 2016-08-17 田原宇 Leachate cleaning and high-efficient treatment device used during gasification of household garbage
CN105855268B (en) * 2016-04-29 2019-01-18 田原宇 Domestic garbage gasification process percolate clean and effective processing unit
CN105921497A (en) * 2016-06-17 2016-09-07 北京神雾环境能源科技集团股份有限公司 Resourceful comprehensive treatment method and system for household garbage
CN106077029A (en) * 2016-06-17 2016-11-09 北京神雾环境能源科技集团股份有限公司 Domestic garbage resource integrated conduct method and processing system
CN106111657A (en) * 2016-06-17 2016-11-16 北京神雾环境能源科技集团股份有限公司 Domestic garbage resource integrated conduct method and processing system
CN105921498A (en) * 2016-06-17 2016-09-07 北京神雾环境能源科技集团股份有限公司 Household garbage resourceful comprehensive treatment method and treatment system
CN105936832A (en) * 2016-07-01 2016-09-14 北京神雾环境能源科技集团股份有限公司 System and method utilizing water steam in garbage pyrolysis rotary hearth furnace to dry garbage
CN106016276A (en) * 2016-07-01 2016-10-12 北京神雾环境能源科技集团股份有限公司 System and method for drying garbage by recycling waste heat of pyrolytic carbon through steam in rotary hearth furnace
CN106111675A (en) * 2016-08-12 2016-11-16 北京神雾环境能源科技集团股份有限公司 Domestic garbage resource integrated conduct method and processing system

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