CN2697475Y - Screened pyrolyzing treatment furnace for domestic refuse - Google Patents

Screened pyrolyzing treatment furnace for domestic refuse Download PDF

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Publication number
CN2697475Y
CN2697475Y CN 200420028437 CN200420028437U CN2697475Y CN 2697475 Y CN2697475 Y CN 2697475Y CN 200420028437 CN200420028437 CN 200420028437 CN 200420028437 U CN200420028437 U CN 200420028437U CN 2697475 Y CN2697475 Y CN 2697475Y
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China
Prior art keywords
furnace
stove
pyrolysis
gas
air
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Expired - Fee Related
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CN 200420028437
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Chinese (zh)
Inventor
张于峰
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Tianjin University
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Tianjin University
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Publication of CN2697475Y publication Critical patent/CN2697475Y/en
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Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a screened pyrolyzing treatment furnace for domestic refuse. The screened pyrolyzing treatment furnace for domestic refuse adopts an inner furnace body and an additional insulating layer. A sandwich structural design of screw flue gas is arranged between the inner furnace body and the outer furnace body. The blast feed-water heater in the inner furnace body and the combustion system at the bottom of the outer furnace body are simultaneously heated, reaching the technical requirement for rapid heating up of the material on the garbage screen. The milling system inside can crush the garbage material expanding material layer, ensuring the continuity of pyrolysis process. The utility model consumes part of the heat by the pyrolysis oven to sustain pyrolysis and the left heat is discharged in the form of gas as the clean energy to be used. The gas yield of per ton garbage can reach 300 cubic meters and 5-10% garbage dust is discharged. As the pyrolytic process is carried out under the condition of anoxic 800 DEG high temperature, the generation of dioxin is avoided, the harmless treatment can be realized and the processing requirements of utilization and reduction can be achieved.

Description

House refuse oversize pyrolysis processing stove
Technical field
The utility model belongs to the domestic rubbish disposal technology, is specifically related to a kind of device that adopts pyrolytic gasification to handle house refuse.
Background technology
Consider that from the angle of environmental protection and resource recycling the desirable processing mode of domestic waste is to adopt process for comprehensively treating.Composting technology is eliminated rubbish by microbial action, but the composition to rubbish is strict, the component of refuse of non-food chain deals with comparatively difficulty, can adopt mechanical picker to carry out the simple screening of rubbish, screenings is as the initial material of compost, and the composting technology of this mode is ripe, but the processing of oversize is not resolved for a long time, cause hoarding of a large amount of oversizes, cause the severe contamination of surrounding environment, and taken a large amount of soils.Utilizing the pyrolytic gasification technology is the processing mode of comparatively desirable screen residue of waste, need not oversize rubbish to be classified the discharging of contamination-free in the processing procedure, and recyclable useful resources again.Oversize needs heating-up temperature fast in the pyrolytic gasification process, the swollen bed of material that also needs simultaneously to prevent material occurs.Therefore how to improve emphasis and difficult point that fire box temperature is the research of refuse pyrolysis gasification technology fast, it is directly connected to the promotion and application to domestic waste ideal process equipment.
Summary of the invention
The purpose of this utility model is that the oversize pyrolytic gasification with house refuse becomes fuel gas and a kind for the treatment of apparatus of specifically providing.
With reference to accompanying drawing, house refuse oversize pyrolytic gasification is handled stove and mainly is made up of pyrolytic gasification master stove 1, condenser 4, air-introduced machine 5 and exhaust gas treating device 6 etc.Pyrolytic gasification master stove 1 is to be made of inner furnace body 2, outer stove thermal insulator 3 and spiral flue gas interlayer 7.Inner furnace body 2 is designed to circle, and air-supply water supply heating system adopts electrical heating in the inner furnace body, and fuel gas buring is adopted in outer stove thermal insulator 3 bottoms, simultaneously material in the inner furnace body is heated.The inner furnace body 2 of pyrolysis master stove is connected with condenser 4 through gas collector 19.The import of air-introduced machine 5 is connected with condenser 4 outlets, and what condenser 4 was discharged is combustion gas, and outlet is connected to burner noz(zle) 10 and burns.Soot blower 12 is arranged on outer stove thermal insulator 3 outer bottoms and is communicated with inner furnace body 2, can avoid the high temperature ash disposal to the specific (special) requirements of metal material and operation easily thus.Exhaust gas treating device 6 is connected with spiral flue gas interlayer 7, and outlet communicates with atmosphere.Rubbish material enters the main stove inner furnace body 2 of 800 ℃ of high temperature from the charging aperture 13 of main stove, under the state of extreme anoxic, by vertically moving down and the effect of high temperature gas flow from bottom to top, progressively finish processes such as garbage pre-heating, water evaporates and organic substance pyrolysis, then form rubbish charcoal layer.The pyrolytic gasification humidify fuel gas that produces filters the back through gas collector 19 and enters condenser 4 condensations by gas pipeline under the effect of air-introduced machine 5, and discharges condensed water.A combustion gas part is sent through valve 8, and another part is sent into inner furnace body 2 and enter burner noz(zle) 10 under the control of valve 9 through valve 18 respectively.Combustion gas produces high-temperature flue gas in the external furnace body internal combustion, enters the perisporium of spiral interlayer flue 7 heating inner furnace bodies 2, then discharges main stove and enters exhaust gas processing device 6, treatedly enters atmosphere after up to standard.Wherein in addition some flue gas enters air-supply feed water heater 11 through by-pass valve control 14, again with inner furnace body 2 in the reaction of rubbish charcoal, generate gasification burning and make its rubbish charcoal form the rubbish ash gradually, under the promotion of soot blower 12, discharge main furnace body.There is shaft 16 at center at pyrolytic gasification master stove 1 body of heater, and shaft stirs material in the stove by the paddle 17 that motor 15 drives in the body of heater, plays the temperature action of even internal furnace simultaneously.The initial heat that starts the pyrolytic gasification process comes from the external fuel burning zone of stove thermal insulator 3 inner bottom parts outside, and the combustion gas that inner furnace body 2 produces is got back in the internal furnace through valve 18 by reflux line, and its effect is a temperature of accelerating to promote internal furnace.The unnecessary combustion gas that is produced in the flameholding process provides other with using by equipment under the control of valve 8.
The utility model has adopted inner furnace body to add heat-insulation layer, and the structural design of spiral flue gas interlayer is set between interior external furnace body, and air-supply feed-water heater and external furnace body base burning system in the inner furnace body are heated simultaneously, reach the specification requirement that screen residue of waste is rapidly heated, in the stirring system established can make the swollen bed of material fragmentation of rubbish material, guarantee the continuity of pyrolytic gasification process.The fuel gas return-flow pipe that is provided with can be realized anoxic in the device start process, accelerate the heating process of material.
The beneficial effects of the utility model are that except that pyrolysis oven autophage part heat maintaining heat was separated, after-heat was exported in the mode of combustion gas, uses as clean energy resource after the house refuse oversize was handled via pyrolysis gasifying device.The combustion gas output of rubbish per ton can reach 300 cubic metres, and the combustion value is about 3000~5000 kilocalorie/cubic meters, discharges 5~10% rubbish ash through simple screening, remove recyclable materials such as metal, glass after, can be used as the flowers and plants compost.Whole pyrolytic process need not the external energy, if the rubbish carbon content satisfies, does not have other external emission except that combustion gas and rubbish ash.Because pyrolytic process is to move under 800 ℃ of hot conditions of anoxic, therefore there is not the generation condition of dioxin, can realize harmless treatment, also reach the processing requirements of resource and minimizing simultaneously, the combustion gas of generation also can obtain certain economic benefits.
Description of drawings
Accompanying drawing is a structure principle chart of the present utility model.
The specific embodiment
After domestic waste enters the dumping place, in the start-up course of equipment, at first sieve by mechanical picker, oversize rubbish is sent into them in main stove charging aperture 13 bodies of heater by the charging propeller, and agitator stirs material bed.Charge is counted roughly 3/4 stove inner volume, and weight is counted roughly 200 kilograms.Treat that material packs into behind the inner furnace body, bottom of furnace body adds fuel combustion outside, opens air-supply feed-water heater 11 simultaneously, and heating inner furnace body 2 heats up its inner material, the non-combustion gas body that pyrolysis this moment produces is discharged through gas collector 19, and the flue gas that burning produces enters atmosphere through exhaust gas treating device.For accelerating programming rate, the non-combustion gas of part anaerobic after the dehydration can be sent into inner furnace body again by valve 18, strengthen the circulation of inner air-flow, remainder is discharged body of heater by valve 8 controls.After material in the stove reaches 500 ℃ of pyrolysis temperatures, begin to produce humidify fuel gas, through the condenser dehydration, become fuel gas, this moment valve-off 18.The part of flammable combustion gas is entered burner 10 spray combustions by valve 9 controls, and the heat that provides pyrolytic gasification to need substitutes the fuel heat in the external furnace body.Flue gas still enters exhaust gas treating device 6 by spiral interlayer 7.After temperature in the stove reaches 800 ℃ of gasification temperatures, rubbish charcoal after the pyrolysis forms, by-pass valve control 14 transport portion cigarette G﹠Ws enter in the stove, the rubbish charcoal is gasified, further generate fuel gas, the fuel gas that forms with pyrolysis together enters the condenser dehydration, continues to finish aforesaid gas flow process.Condenser is a water-cooled, and condensation temperature is 90 ℃, and the gas quantity of cooling is counted roughly 300m 3Exhaust gas processing device is half wet type XD type boiler flue gas desulfurization device, adopts the limewash circulated sprinkling to filter flue gas, reaches the purpose of dust-removal and desulfurizing.The flow process of material is top-down process, and after rubbish begins the ordinary production combustion gas, the material that newly enters will be rapidly heated under hot environment and carry out pyrolysis, and rubbish charcoal of Chan Shenging and backflow flue gas carry out gasification reaction subsequently, form the rubbish ash at last.Because circular furnace binding, material are evenly sunk under the effect of gravity, be the leaving space that enters of new material, and the agitator in the interior stove will rotate regularly, the knot layer that destruction may form impels material to sink to entering soot blower and regularly discharges out of the furnace.Every interval material loading half an hour is 100 kilograms after the stable operation of processing stove, and per hour pyrolytic gasification rubbish is 200 kilograms, produces combustion gas and counts roughly 300m 3, the about 2000Kcal/kg of calorific value produces the rubbish ash and counts roughly 15kg, the condensation cycle water yield count roughly 1 ton/time, consumed power is counted roughly 4kW.

Claims (3)

1. house refuse oversize pyrolysis processing stove, mainly by pyrolytic gasification master stove (1), condenser (4), air-introduced machine (5) and exhaust gas treating device compositions such as (6), it is characterized in that pyrolytic gasification master stove (1) is by inner furnace body (2), outer stove thermal insulator (3) and spiral flue gas interlayer (7) constitute, inner furnace body (2) is designed to circle, air-supply water supply heating system adopts electrical heating in the inner furnace body, fuel gas buring is adopted in outer stove thermal insulator (3) bottom, simultaneously material in the inner furnace body is heated, the inner furnace body (2) of pyrolysis master stove is connected with condenser (4) through gas collector (19), the import of air-introduced machine (5) is connected with condenser (4) outlet, outlet is connected to burner noz(zle) (10), soot blower (12) is arranged on outer stove thermal insulator (3) outer bottom and is communicated with inner furnace body (2), exhaust gas treating device (6) is connected with flue gas interlayer (7), and outlet communicates with atmosphere.
2. house refuse oversize pyrolysis processing stove according to claim 1 is characterized in that at the center of pyrolytic gasification master stove (1) body of heater shaft (16) being arranged, and shaft drives the interior paddle (17) of body of heater by motor (15).
3. house refuse oversize pyrolysis processing stove according to claim 1 and 2 is characterized in that being provided with air-supply feed-water heater (11) in inner furnace body, and as the support of shaft in the body of heater (16).
CN 200420028437 2004-03-01 2004-03-01 Screened pyrolyzing treatment furnace for domestic refuse Expired - Fee Related CN2697475Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200420028437 CN2697475Y (en) 2004-03-01 2004-03-01 Screened pyrolyzing treatment furnace for domestic refuse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200420028437 CN2697475Y (en) 2004-03-01 2004-03-01 Screened pyrolyzing treatment furnace for domestic refuse

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CN2697475Y true CN2697475Y (en) 2005-05-04

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101786095A (en) * 2010-04-06 2010-07-28 杨成志 Energy recovery type household waste disposer
CN104862016A (en) * 2015-03-31 2015-08-26 张家港天源生物能源科技有限公司 Gas recycling and cooling system of biomass carbonization furnace
CN105674294A (en) * 2016-03-21 2016-06-15 安徽未名生物环保有限公司 Waste combustion furnace capable of discharging solid-liquid-gas three-phase products in classified mode
CN105716083A (en) * 2016-03-21 2016-06-29 安徽未名生物环保有限公司 Air inlet control system of low-energy-consumption pyrolyzing furnace
CN105737166A (en) * 2016-03-21 2016-07-06 安徽未名生物环保有限公司 Circulation control system for pyrolysis gasifier
CN105728439A (en) * 2016-04-06 2016-07-06 北京神雾环境能源科技集团股份有限公司 System and method for treating organic waste
CN106813245A (en) * 2017-01-13 2017-06-09 安徽未名鼎和环保有限公司 A kind of auxiliary heating type refuse treatment plant
CN110836375A (en) * 2019-10-24 2020-02-25 周序妹 Environment-friendly waste incineration equipment that many triggers
CN111561700A (en) * 2020-04-01 2020-08-21 华北电力大学 Rotary rake type organic solid waste pyrolysis device and pyrolysis method

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101786095A (en) * 2010-04-06 2010-07-28 杨成志 Energy recovery type household waste disposer
CN104862016A (en) * 2015-03-31 2015-08-26 张家港天源生物能源科技有限公司 Gas recycling and cooling system of biomass carbonization furnace
CN104862016B (en) * 2015-03-31 2017-07-11 张家港天源生物能源科技有限公司 Gas reuse cooling system in biomass carbonization stove
CN105674294A (en) * 2016-03-21 2016-06-15 安徽未名生物环保有限公司 Waste combustion furnace capable of discharging solid-liquid-gas three-phase products in classified mode
CN105716083A (en) * 2016-03-21 2016-06-29 安徽未名生物环保有限公司 Air inlet control system of low-energy-consumption pyrolyzing furnace
CN105737166A (en) * 2016-03-21 2016-07-06 安徽未名生物环保有限公司 Circulation control system for pyrolysis gasifier
CN105728439A (en) * 2016-04-06 2016-07-06 北京神雾环境能源科技集团股份有限公司 System and method for treating organic waste
CN105728439B (en) * 2016-04-06 2018-03-23 神雾科技集团股份有限公司 The system and method for handling organic waste
CN106813245A (en) * 2017-01-13 2017-06-09 安徽未名鼎和环保有限公司 A kind of auxiliary heating type refuse treatment plant
CN106813245B (en) * 2017-01-13 2019-05-07 安徽未名鼎和环保有限公司 A kind of auxiliary heating type refuse treatment plant
CN110836375A (en) * 2019-10-24 2020-02-25 周序妹 Environment-friendly waste incineration equipment that many triggers
CN110836375B (en) * 2019-10-24 2021-08-17 宝泽工程科技有限公司 Environment-friendly waste incineration equipment that many triggers
CN111561700A (en) * 2020-04-01 2020-08-21 华北电力大学 Rotary rake type organic solid waste pyrolysis device and pyrolysis method

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