CN105855268A - Leachate cleaning and high-efficient treatment device used during gasification of household garbage - Google Patents

Leachate cleaning and high-efficient treatment device used during gasification of household garbage Download PDF

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Publication number
CN105855268A
CN105855268A CN201610281413.0A CN201610281413A CN105855268A CN 105855268 A CN105855268 A CN 105855268A CN 201610281413 A CN201610281413 A CN 201610281413A CN 105855268 A CN105855268 A CN 105855268A
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CN
China
Prior art keywords
heat exchange
percolate
ash releasing
feed bin
releasing tube
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Application number
CN201610281413.0A
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Chinese (zh)
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CN105855268B (en
Inventor
田原宇
乔英云
张金弘
唐瑞源
赵国明
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田原宇
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Priority to CN201610281413.0A priority Critical patent/CN105855268B/en
Publication of CN105855268A publication Critical patent/CN105855268A/en
Application granted granted Critical
Publication of CN105855268B publication Critical patent/CN105855268B/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE
    • B09B3/00Destroying solid waste or transforming solid waste or contaminated solids into something useful or harmless
    • B09B3/0083Destroying solid waste or transforming solid waste or contaminated solids into something useful or harmless by means of a thermal treatment, e.g. evaporation

Abstract

The invention provides a leachate cleaning and high-efficient treatment device used during gasification of household garbage. The device is formed by an ash discharge pipe, a leachate spraying hole, an air introduction pipe, a heat exchange bin, an upper water outlet, a lower water inlet, a rotary blow-off valve and a household garbage thermal treatment furnace; the leachate spraying hole is arranged at the side face of the middle of the ash discharge pipe in the household garbage thermal treatment furnace, the air introduction pipe is arranged at the lower part of the ash discharge pipe, the bottom of the ash discharge pipe is directly connected into the heat exchange bin; and the upper water outlet and the lower water inlet are arranged at the side face of the heat exchange bin, and the bottom of the heat exchange bin is provided with the rotary blow-off valve to discharge at regular times.

Description

Domestic garbage gasification process percolate clean and effective processing means

1. technical field

The present invention provides domestic garbage gasification process percolate clean and effective processing means, belongs to field of environment protection.

2. background technology

The domestic rubbish disposal mode of countries in the world mainly has classification recovery, landfill, compost and burning, cracks and gasify at present.Landfill disposal A large amount of soil need to be taken.Meanwhile, in rubbish, oxious component will also result in severe contamination to air, soil and water source, not only breaks up ecological environment, Also serious harm health;Rubbish to be sorted, to classify by compost treatment, it is desirable to the organic content of rubbish is higher.And compost treatment is not Energy minimizing, still needs to take a large amount of soil.Burn, cracking and gasification process all can realize rapid volume reduction and thoroughly high temperature innoxious, account for Ground area is little, and can realize waste resources energy, is current and the main flow direction of future life garbage disposal.But these processes all can be at rubbish The big intractable percolate of rubbish storehouse cutting out partial stink, complicated component, COD, NH3-N concentration are the highest, and difficult biochemical substances content is many, Water quality and quantity changes greatly, is the generally acknowledged difficult problem of current water treatment field.Although after Zheng Fanongsuoing return incinerator combustion heat supplying again, 20% dense Contracting percolate just can maintain self evaporation and the thermal balance of burning, and handling process is simple, and investment and processing cost are low, but containing part in evaporation vapour Acidic volatile material, adds dual-spectrum process and cost, and additionally evaporation needs to consume the steam of Refuse Incineration Process 1%.The lowest one-tenth It is the difficult problem that current house refuse is heat-treated that this cleaning processes percolate.

The essence burned is that organic waste is oxidized under conditions of high temperature and oxygen supply abundance gaseous inert gas thing and inorganic noncombustibles, to be formed Stable solid residue.First being placed in incinerator by rubbish and burn, discharge heat energy, then waste heat recovery can heat supply or generating;Flue gas Discharge after purification.But when the 10%-30% ash conversion contained in rubbish is to arrange outside a large amount of solid residue, contain the most again more unburning material, And high temperature enters in water seal and then slags tap, the most both waste solid residue heat energy, again can be because of the DDGS dissolving generation difficult waste water of secondary in slag With hydration caking blocking.

House refuse cracking is technology the most newly developed, high to waste resources utilization rate, without the generation of two English, but oil product complicated component, Utilize difficulty big, and produce reluctant phenol water, be additionally main to be difficult to large-scale production with bed technology;Domestic garbage gasification is to rubbish Rubbish resource utilization is high, and two English generate few, but gas heating value is low, needs to remove tar, utilize difficulty big, at present based on bed technology It is difficult to large-scale production.The two process there is also when arranging outside solid residue equally, often contains more unburning material, and high temperature enters water Then the phenomenon slagged tap in envelope.

3. summary of the invention

Deficiency that the purpose of the present invention is contemplated to overcome conventional garbage heat treatment technics to exist and domestic garbage gasification process percolate cleaning height is provided Effect processing means, the most thoroughly solves percolate and processes and utilize a difficult problem, again the heat energy of the outer grate furnace slag of Appropriate application high temperature, it is achieved that refuse furnace The secondary clacining of slag and cooling, obtained the low phosphorus bearing slag of low temperature, it is to avoid the difficult waste water of secondary and the generation of hydration caking clogging, Waste recycling.

Technical scheme:

It is an object of the invention to, by utilizing auxiliary air oxidizing roasting and percolate vaporization and moving bed to take heat in ash releasing tube, solve simultaneously Percolate and a difficult problem for the outer deslagging of high temperature, obtained the low phosphorus bearing slag of low temperature, it is simple to sorting utilizes and landfill.Domestic garbage gasification process percolate Clean and effective processing means, by ash releasing tube, percolate entrance, air access tube, heat exchange feed bin, upper water-out mouth, lower water inlet, rotary rowed The material composition such as valve and house refuse heat-treatment furnace;Its technical characteristic is that in the middle part of the ash releasing tube of house refuse heat-treatment furnace, side arranges percolate and sprays into Mouthful, bottom arranges air access tube, and bottom is directly accessed heat exchange feed bin;Heat exchange feed bin side arranges upper water-out mouth and lower water inlet, and bottom is arranged Rotary discharging valve timing discharge.

Ash releasing tube optimum structure is up big and down small taper, and percolate utilizes atomizer laterally to spray into from ash releasing tube top, and air is from ash releasing tube Portion is passed through, and heat exchange feed bin is 1-15:1 with the aspect ratio of ash releasing tube.

Slag flow regime in ash releasing tube is preferably at fluidized bed state, and the slag flow regime of heat exchange feed bin is preferably at moving bed state.

High temperature furnace slag temperature in ash releasing tube is 600~1500 DEG C, and the slag temperature entering heat exchange feed bin is 300-800 DEG C.

The temperature of heat exchange bin outlet slag is 30-80 DEG C.

Embodiment is described the feature of the present invention by the present invention in detail.

4. accompanying drawing explanation

Accompanying drawing is assembly of the invention schematic diagram.

The drawing of accompanying drawing sets bright as follows:

1, ash releasing tube 2, percolate entrance 3, air access tube 4, heat exchange feed bin 5, upper water-out mouth 6, lower water inlet 7, Rotary discharging valve 8, house refuse heat-treatment furnace

The process characteristic of the present invention is described in detail in detail with embodiment below in conjunction with the accompanying drawings.

5. detailed description of the invention

Embodiment, 600~1500 DEG C of high temperature furnace slags of house refuse heat-treatment furnace (8) are drained in outer comb (1), by percolate from diafiltration Liquid entrance (2) sprays into 600~1500 DEG C of slag vaporizations and reaction, flows upwardly at house refuse heat containing odorous gas and low-density unburning material Reason stove (8) pyroreaction again, 300-600 DEG C flowed downward cooling slag is passed through the further oxygen of air again by air access tube (3) Change calcining and sorting;300-800 DEG C of the cleanest higher temperatures slag enters heat exchange feed bin (4), by from lower water inlet (6) entrance, upper water-out The cooling water heat exchange that mouth (5) is discharged, slag cools to 80-30 DEG C, from heat exchange feed bin (4) bottom by arranging rotary discharging valve (7) timing Low carbon containing odorless slag.

Ash releasing tube (1) optimum structure is up big and down small taper, and percolate utilizes atomizer laterally to spray into from ash releasing tube (1) top, air Being passed through from ash releasing tube (1) bottom, heat exchange feed bin (4) is 1-15:1 with the aspect ratio of ash releasing tube (1).

Slag flow regime in ash releasing tube (1) is preferably at fluidized bed state, and the slag flow regime of heat exchange feed bin (4) is preferably at movement Bed state.

High temperature furnace slag temperature in ash releasing tube (1) is 600~1500 DEG C, and the slag temperature entering heat exchange feed bin (4) is 300-800 DEG C.

The temperature of heat exchange feed bin (4) outlet slag is 30-80 DEG C.

Domestic garbage gasification process percolate clean and effective processing means provided by the present invention, can either thoroughly solve percolate and process and utilize A difficult problem, the again heat energy of the outer grate furnace slag of Appropriate application high temperature, it is achieved that the secondary clacining of garbage slag and cooling, obtained the low phosphorus bearing slag of low temperature, Avoiding the difficult waste water of secondary and the generation of hydration caking clogging, waste recycling, equipment volume is little, and steel consumption is low, fixing throwing Money is substantially reduced, and ash discharge structure and process are simple, it is simple to the sorting of slag utilizes and landfill.

Claims (5)

1. domestic garbage gasification process percolate clean and effective processing means, by ash releasing tube, percolate entrance, air access tube, Heat exchange feed bin, upper water-out mouth, lower water inlet, rotary discharging valve and house refuse heat-treatment furnace etc. form;Its technical characteristic Being that in the middle part of the ash releasing tube of house refuse heat-treatment furnace, side arranges percolate entrance, bottom arranges air access tube, bottom It is directly accessed heat exchange feed bin;Heat exchange feed bin side arranges upper water-out mouth and lower water inlet, and bottom arranges rotary discharging valve timing Discharge.
Domestic garbage gasification process percolate clean and effective processing means the most according to claim 1, it is characterised in that ash releasing tube Optimum structure is up big and down small taper, and percolate utilizes atomizer laterally to spray into from ash releasing tube top, and air is from ash discharge Pipe bottom is passed through, and heat exchange feed bin is 1-15:1 with the aspect ratio of ash releasing tube.
Domestic garbage gasification process percolate clean and effective processing means the most according to claim 1, it is characterised in that ash releasing tube In slag flow regime preferably at fluidized bed state, the slag flow regime of heat exchange feed bin is preferably at moving bed state.
Domestic garbage gasification process percolate clean and effective processing means the most according to claim 1, it is characterised in that ash releasing tube In high temperature furnace slag temperature be 600~1500 DEG C, the slag temperature entering heat exchange feed bin is 300-800 DEG C.
Domestic garbage gasification process percolate clean and effective processing means the most according to claim 1, it is characterised in that heat exchange material The temperature of storehouse outlet slag is 30-80 DEG C.
CN201610281413.0A 2016-04-29 2016-04-29 Domestic garbage gasification process percolate clean and effective processing unit CN105855268B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610281413.0A CN105855268B (en) 2016-04-29 2016-04-29 Domestic garbage gasification process percolate clean and effective processing unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610281413.0A CN105855268B (en) 2016-04-29 2016-04-29 Domestic garbage gasification process percolate clean and effective processing unit

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CN105855268A true CN105855268A (en) 2016-08-17
CN105855268B CN105855268B (en) 2019-01-18

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002286367A (en) * 2001-03-23 2002-10-03 Mitsubishi Electric Corp Garbage disposal device
CN101564731A (en) * 2009-05-20 2009-10-28 河南科技大学 Innocent treatment device for waste incineration flying ash
CN103406329A (en) * 2013-07-05 2013-11-27 广东环兴环保节能科技有限公司 Method for comprehensively treating and utilizing household garbage incineration slag
CN203893186U (en) * 2014-06-02 2014-10-22 曲靖云电投新能源发电有限公司 Landfill leachate collecting and spray combustion device
CN203991628U (en) * 2013-11-12 2014-12-10 天津城建大学 A kind for the treatment of apparatus that efficiently utilizes MSW heating value
CN204345656U (en) * 2014-12-11 2015-05-20 北京中科洁能环境工程技术有限公司 The rubbish fluidized bed incinerator deslagging device of one way of life

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002286367A (en) * 2001-03-23 2002-10-03 Mitsubishi Electric Corp Garbage disposal device
CN101564731A (en) * 2009-05-20 2009-10-28 河南科技大学 Innocent treatment device for waste incineration flying ash
CN103406329A (en) * 2013-07-05 2013-11-27 广东环兴环保节能科技有限公司 Method for comprehensively treating and utilizing household garbage incineration slag
CN203991628U (en) * 2013-11-12 2014-12-10 天津城建大学 A kind for the treatment of apparatus that efficiently utilizes MSW heating value
CN203893186U (en) * 2014-06-02 2014-10-22 曲靖云电投新能源发电有限公司 Landfill leachate collecting and spray combustion device
CN204345656U (en) * 2014-12-11 2015-05-20 北京中科洁能环境工程技术有限公司 The rubbish fluidized bed incinerator deslagging device of one way of life

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