CN1396406A - Back-fire gasifier for city garbage - Google Patents

Back-fire gasifier for city garbage Download PDF

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Publication number
CN1396406A
CN1396406A CN 02138109 CN02138109A CN1396406A CN 1396406 A CN1396406 A CN 1396406A CN 02138109 CN02138109 CN 02138109 CN 02138109 A CN02138109 A CN 02138109A CN 1396406 A CN1396406 A CN 1396406A
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CN
China
Prior art keywords
reciprocating type
stove
loading hopper
discharge plate
slag discharge
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Pending
Application number
CN 02138109
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Chinese (zh)
Inventor
韩连恩
韩璋鑫
Original Assignee
韩连恩
韩璋鑫
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 韩连恩, 韩璋鑫 filed Critical 韩连恩
Priority to CN 02138109 priority Critical patent/CN1396406A/en
Publication of CN1396406A publication Critical patent/CN1396406A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/16Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
    • Y02E20/18Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]

Abstract

A back-fire gasification furnace for preparing combustable gas from city garbage is composed of a top mouth, a feeder, a distributor, a furnace cavity, a refractory lining water jacket, combustible gas sucking pipe orifice, a dual-layer T-shaped grate, a cinder collector and a discharger, a water sealing tank, etc.. Its advantages are utilizing garbage to produce combustible gas, raw material for carbonation industry, saving land resource and obvious exonomic benefit.

Description

Back-fire gasifier for city garbage
Technical field
The present invention relates to a kind of is vaporising fuel with combustiblematerials in the domestic waste and plant refuse; adopt anti-internal heat method to produce inflammable gas for burning boiler heat supply and power plant's generating; can burn the back-fire gasifier for city garbage of usefulness for the resident after the gain of heat; lime-ash in stove behind the gasification reaction can be used as carbonization industrial raw material such as producing carbon element, belongs to technical fields such as environment protection.
Background technology
Existing treatment process to domestic waste and plant refuse has burning electricity generation, During High-Temperature Composting and sanitary landfill etc., though changed the form of rubbish and plant refuse, and to minimizing, innoxious and formerization of money aspect develops, but just shift and hidden harm point wherein, and economic benefit is also lower in decontamination source fundamentally not.Gasification process and refuse gasification boiler that a kind of similar municipal wastes is arranged in the prior art, its patent No.: 98111279.x, vapourizing furnace is when operation, in the stove required vaporized chemical (air) be from last fire door enter in the stove with the rubbish shaped fuel along being directed downwards gasification reaction, technology is easy, the operational safety health is pollution-free, owing to enter the interior rubbish shaped fuel of stove earlier after stove internal upper part high temperature oxidation process, the generation high temperature carbon dioxide is sucked into following reducing zone again and is reduced inflammable gass such as generating carbon monoxide, and can make the various harmful combustiblematerials composition that exists in the rubbish shaped fuel be subjected to the furnace high-temperature oxide treatment simultaneously, its environmental benefit is comparatively desirable, but the shortcoming that exists: because the structure of refuse gasification boiler is subjected to certain restriction, the type of furnace restricted diameter of maximum specification was handled a municipal wastes and is had only 50 to ram the loose soil with a stone-roller after sowing and can't develop to the Large Furnace direction in 2.4 meters of Φ maximum day of every day.
Summary of the invention
The purpose of this invention is to provide a kind of domestic waste and plant refuse (stalk, rice husk, shell, wood chip, sawdust) etc. of utilizing is vaporising fuel, adopt anti-internal heat method to produce inflammable gas for burning boiler heat supply and power plant's generating, can burn usefulness for the resident after the gain of heat, the lime-ash in stove behind the gasification reaction can be used as carbonization industrial raw material such as producing carbon element.
Technical solution of the present invention: by last fire door, last furnace roof, reciprocating type loading hopper in the stove, the loading hopper dumper, loading hopper cloth mouth, furnace chamber in the body of heater, refractory lining in the stove, water jacket of the furnace body, the suction combustible gas mouth of pipe, slag gathering hopper under the stove, the deslagging auger, body of heater supports, stove seat water seal board, stove seat water sealed tank, reciprocating type slag discharge plate a chain for binding criminals bar, T shape double-layer grate, reciprocating type slag discharge plate, skimming plate, reciprocating type loading hopper roller track, reciprocating type loading hopper roller, reciprocating type loading hopper hitch, loading hopper roller track supporting plate, reciprocating type slag discharge plate a chain for binding criminals bar gear, reciprocating type slag discharge plate a chain for binding criminals rod bearing is formed, wherein go up fire door, last furnace roof, reciprocating type loading hopper in the stove, reciprocating type loading hopper roller track, reciprocating type loading hopper roller, reciprocating type loading hopper hitch, be arranged on the top of water jacket of the furnace body, the middle part of body of heater inner chamber is provided with refractory lining in the stove, the bottom of refractory lining is provided with skimming plate in the stove, the bottom of skimming plate is provided with T shape double-layer grate, the top of T shape double-layer grate is provided with reciprocating type slag discharge plate, reciprocating type slag discharge plate and reciprocating type slag discharge plate a chain for binding criminals bar link, T shape double-layer grate and stove seat water sealed tank link, the inside of stove seat water sealed tank is provided with water seal board, slag gathering hopper is arranged between two walls of stove seat water sealed tank under the stove, the top of slag gathering hopper is provided with the suction combustible gas mouth of pipe under the stove, and the bottom of slag gathering hopper is provided with the deslagging auger under the stove.
Advantage of the present utility model: be fuel 1, with inexhaustible domestic waste and plant refuse, produce inflammable gas for burning boiler heat supply and power plant's generating, after the gain of heat, can burn usefulness for the resident, to provide a large amount of regenerated energy resources for the mankind, the human minimizing can be made, the exhausted time of oil, Sweet natural gas can be effectively delayed to the asking for of the Nature.2, be of the gas energy utilization of fuel production inflammable gas with domestic waste and plant refuse as cleaning, reduce with the harm of directly burning the atmosphere secondary pollution that is caused when domestic waste generates electricity, after testing, highly toxic substance " Dioxins " content (through the mean value of 5 detections) of inflammable gas in the gas fume after burning discharging of producing with back-fire gasifier for city garbage has only 0.02ng/m 3, be 1/50 of China's permission emission standard, Japan allows 1/25 of emission standard, and European Union allows 1/5 of emission standard, and is very favourable to the protection environment for human survival.3, the utilization of ash and slag value after handling domestic waste and plant refuse to produce inflammable gas with back-fire gasifier for city garbage is higher, can be used as carbonization industrial raw material such as producing carbon element, can be widely used in industrial production.4, adopt back-fire gasifier for city garbage to dispose domestic waste and plant refuse, will save the required land resources that takies a large amount of preciousnesses when being used for garbage sanitary filling, can protect the not contaminated infringement of groundwater resource again effectively for China.5, dispose domestic waste and plant refuse with back-fire gasifier for city garbage, the capability of environmental protection of China will be improved, promoting China to realize the development of municipal wastes industrialization, is that radical cure China and even countries in the world municipal wastes public hazards are polluted very effectively economic measure.6, handle municipal wastes with back-fire gasifier for city garbage of the present invention, meet China the treatment of urban garbage requirement is realized minimizing, innoxious and resource utilization environmental protection policy, its market outlook are very wide, and economic benefit is very remarkable.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
Accompanying drawing 2 is flat sectional drawings of Fig. 1.Accompanying drawing 3 is T type fire grate structure synoptic diagram of Fig. 1.
Among the figure 1 is last fire door, 2 is last furnace roof, 3 is reciprocating type loading hopper, 4 is the loading hopper dumper, 5 is loading hopper cloth mouth, 6 is the body of heater inner chamber, 7 is refractory lining in the stove, 8 is water jacket of the furnace body, 9 are the suction combustion gas mouth of pipe, 10 is slag gathering hopper under the stove, 11 is stove lower dreg discharging auger, 12 is the body of heater pillar stiffener, 13 is stove seat water seal board, 14 is stove seat water sealed tank, 15 is reciprocating type deslagging a chain for binding criminals bar, 16 is T shape double-layer grate, 17 is reciprocating type slag discharge plate, 18 is skimming plate in the stove, 19 is the loading hopper roller track, 20 is the loading hopper roller, 21 is the reciprocal support of loading hopper, 22 loading hopper roller track supporting plates, 23 is reciprocal slag discharge plate a chain for binding criminals bar revolving gear, 24 is reciprocal slag discharge plate a chain for binding criminals rod bearing.
Embodiment
Back-fire gasifier for city garbage is when operation, be arranged under the suction function of the outer negative pressure roots blower of stove, make and form micro-vacuum state in the furnace chamber and be subjected to outer atmospheric influence of stove, make vaporized chemical (air) required in the furnace chamber from last fire door suck in the stove (also available blower fan blasts in the stove from stove top) top-down through furnace chamber internal upper part destructive distillation zone of oxidation, the continuously downward gasification reaction of reducing zone, the inflammable gas that generates in the furnace chamber under stove ash bed the suction combustible gas mouth of pipe in the slag gathering hopper is pumped to outside the stove under the stove by being arranged on, the lime-ash in stove behind the gasification reaction discharges out of the furnace by reciprocating type slag discharge plate and the deslagging auger that is arranged on slag gathering hopper bottom under the stove.This utility model is with domestic waste and plant refuse, after thick breaking, remove incombustible inorganics (brickbat in the domestic waste earlier with selection by winnowing or screening, stone, glass and scrap metal etc.) after, with its chopping or pulverizing, remove dehydration part (oven dry), make moisture content control about 13%, with mechanical presses or be compressed into piece (rod) shape shaped fuel, by loading hopper on the stove, add in the back-fire gasifier for city garbage, formerly after the pyritous oxidizing reaction of 1100 ℃ of left and right sides of stove internal upper part zone of oxidation, make the chlorine in the fuel, benzene, phenol, naphthalene, sulphur, tar and violent in toxicity various hazardous and noxious substances such as " Dioxins ", generating high temperature carbon dioxide after the furnace high-temperature oxidizing reaction is sucked in the reducing zone that forms because of anoxic below the furnace high-temperature zone of oxidation again, be reduced inflammable gass such as generating carbon monoxide, lime-ash in stove behind the gasification reaction is by reciprocating type slag discharge plate, the gasification process of the back-fire gasifier for city garbage that the deslagging auger discharges out of the furnace.
Embodiment 1:
Select back-fire gasifier for city garbage for use, long 12 meters of burner hearth cavity, wide 5 meters, high 8.8 meters, domestic waste and plant refuse are used selection by winnowing after thick breaking, screening, remove wherein incombustible inorganics (brickbat, stone, glass and scrap metal etc.) with its chopping or pulverizing, removing dehydration part (oven dry) is controlled at about 13% moisture content, with mechanical presses or be compressed into piece (rod) shape shaped fuel by by the loading hopper that is arranged on the stove, add in the back-fire gasifier for city garbage, after the reaction of 1100 ℃ of left and right sides of stove internal upper part zone of oxidation high temperature oxidation, remove the chlorine in the fuel, benzene, phenol, naphthalene, sulphur, tar and violent in toxicity various hazardous and noxious substances such as " Dioxins ", the high temperature carbon dioxide that generates through high temperature oxidation reaction back is sucked in the reducing zone that forms because of anoxic below the stove internal oxidation layer again and is reduced inflammable gass such as generating carbon monoxide, the lime-ash in stove behind the gasification reaction by being arranged on T shape double-layer grate top reciprocating type slag discharge plate and be arranged on that the deslagging auger bottom the slag gathering hopper discharges out of the furnace under the stove.
This stove can be handled 600 tons of city nature rubbish and plant refuses every day, produces inflammable gas 400,000 m 3/ day, inflammable gas calorific value (thermal value) 4000-5000KJ/m 3Rice can supply generated energy 160,000 KW/ days, but every day, output was used as 100 tons in carbonization industrial raw material (lime-ash) such as producing carbon element.
Embodiment 2:
Select back-fire gasifier for city garbage for use, long 8 meters of burner hearth cavity, wide 3.8 meters, high 7.8 meters domestic waste and plant refuse used selection by winnowing through thick after broken, screening, remove wherein incombustible inorganics (brickbat, stone, glass and scrap metal etc.) with its chopping or pulverizing, removing dehydration part (oven dry) is controlled at about 13% moisture content, with mechanical presses or be compressed into piece (rod) shape shaped fuel by by the loading hopper that is arranged on the stove, add in the back-fire gasifier for city garbage, after the reaction of 1100 ℃ of left and right sides of stove internal upper part zone of oxidation high temperature oxidation, remove the chlorine in the fuel, benzene, phenol, naphthalene, sulphur, tar and violent in toxicity various hazardous and noxious substances such as " Dioxins ", the high temperature carbon dioxide that generates through high temperature oxidation reaction back is sucked in the reducing zone that forms because of anoxic below the stove internal oxidation layer again and is reduced inflammable gass such as generating carbon monoxide, the lime-ash in stove behind the gasification reaction by being arranged on T shape double-layer grate top reciprocating type slag discharge plate and be arranged on that the deslagging auger bottom the slag gathering hopper discharges out of the furnace under the stove.
This stove can be handled 300 tons of city nature rubbish and plant refuses every day, produces inflammable gas 200,000 m 3/ day, inflammable gas calorific value (thermal value) 4000-5000KJ/m 3Rice can supply generated energy 80,000 KW/ days, but every day, output was used as 50 tons in carbonization industrial raw material (lime-ash) such as producing carbon element.
Embodiment 3:
Select back-fire gasifier for city garbage for use, long 5.6 meters of burner hearth cavity, wide 2.8 meters, high 6.8 meters domestic waste and plant refuse used selection by winnowing through thick after broken, screening, remove wherein incombustible inorganics (brickbat, stone, glass and scrap metal etc.) with its chopping or pulverizing, removing dehydration part (oven dry) is controlled at about 13% moisture content, with mechanical presses or be compressed into piece (rod) shape shaped fuel by by the loading hopper that is arranged on the stove, add in the back-fire gasifier for city garbage, after the reaction of 1100 ℃ of left and right sides of stove internal upper part zone of oxidation high temperature oxidation, remove the chlorine in the fuel, benzene, phenol, naphthalene, sulphur, tar and violent in toxicity various hazardous and noxious substances such as " Dioxins ", the high temperature carbon dioxide that generates through high temperature oxidation reaction back is sucked in the reducing zone that forms because of anoxic below the stove internal oxidation layer again and is reduced inflammable gass such as generating carbon monoxide, the lime-ash in stove behind the gasification reaction by being arranged on T shape double-layer grate top reciprocating type slag discharge plate and be arranged on that the deslagging auger bottom the slag gathering hopper discharges out of the furnace under the stove.
This stove can be handled 150 tons of city nature rubbish and plant refuses every day, produces inflammable gas 100,000 m 3/ day, inflammable gas calorific value (thermal value) 4000-5000KJ/m 3Rice can supply generated energy 40,000 KW/ days, but every day, output was used as 25 tons in carbonization industrial raw material (lime-ash) such as producing carbon element.

Claims (3)

1, back-fire gasifier for city garbage, it is characterized in that by last fire door (1), last furnace roof (2), reciprocating type loading hopper (3) in the stove, loading hopper dumper (4), loading hopper cloth mouth (5), furnace chamber (6) in the body of heater, refractory lining (7) in the stove, water jacket of the furnace body (8), the suction combustible gas mouth of pipe (9), slag gathering hopper under the stove (10), deslagging auger (11), body of heater supports (12), stove seat water seal board (13), stove seat water sealed tank (14), reciprocating type slag discharge plate a chain for binding criminals bar (15), T shape double-layer grate (16), reciprocating type slag discharge plate (17), skimming plate (18), reciprocating type loading hopper roller track (19), reciprocating type loading hopper roller (20), reciprocating type loading hopper hitch (21), loading hopper roller track supporting plate (22), reciprocating type slag discharge plate a chain for binding criminals bar gear (23), reciprocating type slag discharge plate a chain for binding criminals rod bearing (24) is formed, wherein go up fire door (1), last furnace roof (2), reciprocating type loading hopper (3) in the stove, reciprocating type loading hopper roller track (19), reciprocating type loading hopper roller (20), reciprocating type loading hopper hitch (21), be arranged on the top of water jacket of the furnace body (8), the middle part of body of heater inner chamber (6) is provided with refractory lining (7) in the stove, the bottom of refractory lining (7) is provided with skimming plate (18) in the stove, the bottom of skimming plate (18) is provided with T shape double-layer grate (16), the top of T shape double-layer grate (16) is provided with reciprocating type slag discharge plate (17), reciprocating type slag discharge plate (17) links with reciprocating type slag discharge plate a chain for binding criminals bar (15), T shape double-layer grate (16) links with stove seat water sealed tank (14), the inside of stove seat water sealed tank (14) is provided with water seal board (13), slag gathering hopper under the stove (10) is arranged between two walls of stove seat water sealed tank (14), the top of slag gathering hopper under the stove (10) is provided with the suction combustible gas mouth of pipe (9), and the bottom of slag gathering hopper under the stove (10) is provided with deslagging auger (11).
2 back-fire gasifier for city garbage according to claim 1 is characterized in that reciprocating type loading hopper (13) adopts the reciprocal operation method of the electronic roller of rail mounted, also can adopt the method for sprocket rotation to drive the reciprocal operation method of reciprocating type loading hopper.
3, back-fire gasifier for city garbage according to claim 1, it is characterized in that the rotating method that reciprocal slag discharge plate (17) adopts reciprocating type a chain for binding criminals bar (15) and reciprocating type a chain for binding criminals bar revolving gear (23) to form, also available tracks formula sprocket rotation or worm and gear rotating method drive.
CN 02138109 2002-08-14 2002-08-14 Back-fire gasifier for city garbage Pending CN1396406A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 02138109 CN1396406A (en) 2002-08-14 2002-08-14 Back-fire gasifier for city garbage

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Application Number Priority Date Filing Date Title
CN 02138109 CN1396406A (en) 2002-08-14 2002-08-14 Back-fire gasifier for city garbage

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101993733A (en) * 2010-11-30 2011-03-30 中国科学院广州能源研究所 Novel municipal solid waste pyrolysis gasification furnace
CN104296147A (en) * 2014-10-15 2015-01-21 广西博能生物质能源科技有限公司 Environment-friendly garbage incinerator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101993733A (en) * 2010-11-30 2011-03-30 中国科学院广州能源研究所 Novel municipal solid waste pyrolysis gasification furnace
CN101993733B (en) * 2010-11-30 2013-03-27 中国科学院广州能源研究所 Novel municipal solid waste pyrolysis gasification furnace
CN104296147A (en) * 2014-10-15 2015-01-21 广西博能生物质能源科技有限公司 Environment-friendly garbage incinerator

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