CN204325274U - A kind of integral type rubbish plasma gasification stove with water wall - Google Patents
A kind of integral type rubbish plasma gasification stove with water wall Download PDFInfo
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- CN204325274U CN204325274U CN201420767706.6U CN201420767706U CN204325274U CN 204325274 U CN204325274 U CN 204325274U CN 201420767706 U CN201420767706 U CN 201420767706U CN 204325274 U CN204325274 U CN 204325274U
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- gasification
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- synthetic gas
- waste residue
- water wall
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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000009272 plasma gasification Methods 0.000 title claims abstract description 22
- 238000002309 gasification Methods 0.000 claims abstract description 42
- 239000002699 waste material Substances 0.000 claims abstract description 35
- 238000002844 melting Methods 0.000 claims abstract description 24
- 230000008018 melting Effects 0.000 claims abstract description 24
- 238000000926 separation method Methods 0.000 claims 1
- 239000011819 refractory material Substances 0.000 abstract description 17
- 230000003245 working effect Effects 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 41
- 238000000034 method Methods 0.000 description 16
- 238000005516 engineering process Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 238000002407 reforming Methods 0.000 description 6
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000004056 waste incineration Methods 0.000 description 3
- 239000004566 building material Substances 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 239000002361 compost Substances 0.000 description 2
- 239000010791 domestic waste Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 239000003317 industrial substance Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000000306 recurrent effect Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000010563 solid-state fermentation Methods 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
Classifications
-
- 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
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Gasification And Melting Of Waste (AREA)
Abstract
The utility model discloses a kind of integral type rubbish plasma gasification stove with water wall, vapourizing furnace burner hearth is divided into the waste residue melting zone of the synthetic gas reformer section on top, the gasification zone at middle part and bottom; The inherent same level in synthetic gas reformer section is evenly provided with three plasma torchs one; The side of gasification zone is connected with feed system, and side is also provided with inlet mouth, and bottom surface is provided with the fire grate for carrying rubbish; Be provided with in the middle of the side of waste residue melting zone three around plasma torch two; The utility model can make traditional gasification, synthetic gas reform to be melted in a vapourizing furnace to complete with waste residue, and total is simply compact, can improve whole gasification installation operational efficiency and stability; Make full use of rubbish self calorific value and first carry out traditional gasification, plasma torch is consumed energy and greatly reduces, improve the economy that whole system is run; Water-cooled wall energy reduces refractory materials consumption, extends the work-ing life of refractory materials simultaneously, and the energy of recovery part wall loss.
Description
Technical field
The utility model relates to the Gasification Technique of municipal wastes, particularly a kind of integral type rubbish plasma gasification stove with water wall.
Background technology
Current China domestic waste harmless treatment facility is based on sanitary landfill, and compost and burning are auxiliary.Garbage loading embeading is owing to taking large quantity space and polluted underground water and being acknowledged as the last selection of refuse treatment, and compost cost is high, fertilizer efficiency is low, produce market is poor, there is potential safety hazard, develops still limited.Burning disposal can realize the minimizing of rubbish, the comprehensive treating process of innoxious, resource utilization to a certain extent, has obvious advantage, thus obtain at home and develop faster in environment protection and the utilization of resources.But, directly burn cause flue gas to exceed standard, foul smell disturbs residents, and burning process easily produces the secondary pollution such as dioxin and heavy metal, causes the fear of resident, and its neighbour brought topic of taking refuge can not look down upon.Therefore, burning electricity generation moves ahead always in dispute, and the substitute technology of development waste incineration and generating electricity is imperative.
Plasma gasification technology originates from the sixties in 20th century the earliest, U.S. NASA carries out the heat resistanceheat resistant experiment of material with it, start the seventies, for metallurgical and material heat treatment industry, to start the eighties to process the solid waste such as medical science, start in recent years to attempt for the treatment of city and industrial refuse.Be different from traditional waste incineration mode, rubbish 100% almost can be converted into callable byproduct by plasma gasification technology, and organism is wherein converted into clean fuel gas (mainly CO and H
2), can directly to burn or for refining into more high-grade fuels and chemicals, and can be used as material of construction after the harmless vitreous state slag cooling that inorganics melting produces, thus realize real rubbish processing to be harmless and resource utilization application, be a kind of substitute technology of waste incineration most potentiality.Along with constantly perfect (life-span long, stable) of plasma generator technology and plasma body are from the continuous decline of power consumption, utilize plasma gasification technology that China's domestic waste is converted into the ripe of the energy.
But, existing rubbish plasma gasification stove most using plasma torch carries out direct high-temperature gasification to rubbish, the plasma body up to 7000 DEG C is produced by arc-over, thus make the thorough pyrolysis of rubbish, publication number as Hans Kalt is the publication number of US005280757A american documentation literature and Karma Qiao is the american documentation literature of US005634414A, arc plasma is unique thermal source, do not utilize the calorific value of rubbish itself, energy expenditure is high, plasma torch specific power consumption can reach the 30%-45% of its electricity generation ability, operation cost is caused greatly to increase, add plasma torch power limited, be difficult to expansion scale and realize commercial applications.In addition, owing to only inputting electric energy, plasma jet direct gasification rubbish is relied on, make gasification temperature field in furnace and flow field very uneven, rubbish completely by pyroprocessing, thus can not be made to contain the objectionable impuritiess such as dioxin in waste residue, bring a larger difficult problem to Solid state fermentation.
Simultaneously, refuse gasification device is made up of vaporizer and dual firing chamber usually, complex structure, pipeline is numerous, and add material cost, and rubbish plasma gasification medial temperature is up to 1500 DEG C, gasification stove internal wall needs very thick refractory materials, also greatly add the manufacturing cost of rubbish plasma gasification furnace, have impact on the economy of rubbish plasma gasification technology.
Utility model content
The purpose of this utility model is to provide a kind of integral type rubbish plasma gasification stove with water wall, the calorific value of Appropriate application rubbish self produces synthetic gas and completes gasification, recycling plasma torch is reformed to the synthetic gas produced on vapourizing furnace top, the pollution substance in synthetic gas is removed by high temperature, tar in synthetic gas is removed simultaneously, synthetic gas is restructured as with CO and H
2be main clean gas, utilize plasma torch to carry out high-temperature fusion in vapourizing furnace bottom to the waste residue produced simultaneously, make waste residue form innoxious vitreous state slag, after cooling, can be used as material of construction; Gasification furnace structure is compact, and manufacturing cost reduces, and plasma torch only acts on synthetic gas and waste residue simultaneously, and avoid the direct process to low heat value, high-moisture rubbish, the economy that rubbish plasma gasification is run increases greatly; The refractory materials adopting water wall to replace part conventional, can be reduced the thickness of expensive refractory materials, increase the work-ing life of refractory materials simultaneously, can also reclaim the portion of energy of being lost by wall.
The technical solution of the utility model is as follows:
With an integral type rubbish plasma gasification stove for water wall, it is characterized in that: vapourizing furnace burner hearth is divided into upper, middle and lower three regions, and upper area is synthetic gas reformer section, and central region is gasification zone, and lower region is waste residue melting zone; The inherent same level in described synthetic gas reformer section is evenly provided with three plasma torchs one; The side of described gasification zone is connected with feed system, the side of gasification zone is also provided with inlet mouth, and can pass into air or oxygen and make rubbish complete traditional gasification process, control temperature is at about 700 degree, the bottom surface of gasification zone is provided with fire grate, for carrying rubbish and separating waste residue melting zone; Be provided with in the middle of the side of described waste residue melting zone three around plasma torch two.
Described plasma torch one is installed on the middle undergauge place of upper area.
The temperature of synthetic gas in upper area controls, between 1200-1500 DEG C, to be reformatted into reach synthetic gas with CO and H by the plasma torch one of described synthetic gas reformer section
2be main combustion gas and the tar removed wherein Ji pollutents such as dioxin, plasma torch one be installed on undergauge place synthetic gas subject plasma torch one is heated evenly, reforming effect is better, synthetic gas is flowed out by the outlet on top after reforming, and can be directly used in gas turbine power generation or as industrial chemicals.
Described plasma torch two is 120 degree of angles each other and is 45 degree of angles with ground.
The waste residue that described gasification zone generates falls into waste residue melting zone by fire grate, temperature controls at about 1400 DEG C by the plasma torch two of waste residue melting zone, makes waste residue melting, flows out from the slag-drip opening of bottom, form innoxious glass-state waste residue after cooling, can be used as material of construction.
The inwall of described vapourizing furnace is provided with water wall, and water is flowed into by the side of upper area, is flowed out by the side of lower region, by the heat radiation of water wall recovery part by wall, reduces the thickness of refractory materials simultaneously, extends the work-ing life of refractory materials.As an embodiment, when adopting water wall, only can arrange three layers of refractory materials, every layer thickness is at 100mm to 150mm, and when not adopting water wall, need layout five layers of refractory materials, total thickness is 500 to 750mm about.
Working method of the present utility model is: working method of the present invention is: first dropped into by the dog-house of rubbish from feed system, and rubbish is transported to the gasification zone at middle part after fragmentation, is filled on fire grate; The plasma torch one starting synthetic gas reformer section, top reaches steady running with the plasma torch two of waste residue melting zone, bottom, control temperature is at pre-determined range, make the water in water wall enter recurrent state simultaneously, certain air or oxygen is passed into again from the gasification zone at middle part, lighted the rubbish of gasification zone, middle part by portfire, generating gasification process simultaneously; Synthetic gas reformation is carried out in the synthetic gas reformer section that the synthetic gas that gasification produces enters into top, remove the tar in synthetic gas and pollutent, then the syngas outlet of synthetic gas through synthetic gas reformer section flows out, the waste residue produced in synthetic gas reforming process carries out melting by the waste residue melting zone of bottom, flow out from the slag-drip opening bottom waste residue melting zone again, after cooling, can be used as building materials.
The beneficial effects of the utility model are as follows:
(1) adopt integral type rubbish plasma gasification stove, the reformation of traditional gasification, synthetic gas is melted in a vapourizing furnace with waste residue and completes, make total more simply compact, whole gasification installation operational efficiency and stability improve;
(2) plasma torch only processes synthetic gas and waste residue, and garbage utilization self calorific value first carries out traditional gasification, and plasma torch is consumed energy and greatly reduces, processing efficiency improves, and improves the economy that whole system is run;
(3) adopt water wall to replace part refractory materials, the consumption of expensive refractory materials can be reduced, refractory thickness is reduced, have larger region for refuse gasification, extend the work-ing life of refractory materials simultaneously, and the energy of recovery part wall loss.
Accompanying drawing explanation
Fig. 1 is cross-sectional schematic of the present utility model;
Fig. 2 is the A-A cross section schematic diagram in the utility model Fig. 1.
Wherein, Reference numeral is: 1 feed system, and 2 plasma torchs one, 3 export, 4 inlet mouths, 5 fire grates, 6 plasma torch two, 7 slag-drip openings, 8 water wall, A synthetic gas reformer section, B gasification zone, C waste residue melting zone.
Embodiment
As shown in Figure 1-2, a kind of integral type rubbish plasma gasification stove with water wall, vapourizing furnace burner hearth is divided into upper, middle and lower three regions, top is synthetic gas reformer section A, three plasma torchs 1 are installed on the middle undergauge place of synthetic gas reformer section, top A, are positioned in same level, each other in 120 degree of angles be 45 degree of angles with ground, controlling top synthetic gas temperature by plasma torch 1 is between 1200-1500 DEG C, is reformatted into reach synthetic gas with CO and H
2be main combustion gas and the tar removed wherein Ji pollutents such as dioxin, plasma torch 1 be installed on undergauge place make synthetic gas subject plasma torch 1 heat evenly, reforming effect is better, synthetic gas is flowed out by the outlet 3 on top after reforming, and can be directly used in gas turbine power generation or as industrial chemicals; Middle part is gasification zone B, and side is connected with supporting feed system 1, and middle part side bottom has inlet mouth 4, and can pass into air or oxygen and make rubbish complete traditional gasification process, control temperature is at about 700 degree, and there is fire grate 5 bottom surface, middle part, for carrying rubbish; Bottom is waste residue melting zone C, the waste residue generated after traditional gasification falls into bottom by fire grate 5, lower side intermediate arrangement three around plasma torch 26, temperature of lower is controlled at about 1400 DEG C by plasma torch 26, make waste residue melting, flow out from the slag-drip opening 7 of bottom, form innoxious glass-state waste residue after cooling, can be used as material of construction.Meanwhile, increase water wall 8 at gasification stove internal wall, water is flowed into by top header 8-1, is flowed out by bottom header 8, by the heat radiation of water wall 8 recovery part by wall, reduces the thickness of refractory materials 9 simultaneously, extends the work-ing life of refractory materials.As an embodiment, when adopting water wall 8, only can arrange three layers of refractory materials, every layer thickness is at 100mm to 150mm, and when not adopting water wall 8, need layout five layers of refractory materials, total thickness is 500 to 750mm about.
Working method of the present utility model is: working method of the present invention is: first dropped into by the dog-house of rubbish from feed system 1, and rubbish is transported to the gasification zone B at middle part after fragmentation, is filled on fire grate 5; The plasma torch 1 starting synthetic gas reformer section, top A reaches steady running with the plasma torch 26 of waste residue melting zone, bottom C, control temperature is at pre-determined range, make the water in water wall 8 enter recurrent state simultaneously, certain air or oxygen is passed into again from the gasification zone B at middle part, lighted the rubbish of middle part gasification zone B by portfire, generating gasification process simultaneously; The synthetic gas reformer section A that the synthetic gas that gasification produces enters into top carries out synthetic gas reformation, remove the tar in synthetic gas and pollutent, then synthetic gas flows out through the syngas outlet of synthetic gas reformer section A, the waste residue produced in synthetic gas reforming process carries out melting by the waste residue melting zone C of bottom, flow out from the slag-drip opening 7 bottom the C of waste residue melting zone again, after cooling, can be used as building materials.
Claims (6)
1. the integral type rubbish plasma gasification stove with water wall, is characterized in that: vapourizing furnace burner hearth is divided into upper, middle and lower three regions, and upper area is synthetic gas reformer section (A), and central region is gasification zone (B), and lower region is waste residue melting zone (C); The inherent same level of described synthetic gas reformer section (A) is evenly provided with three plasma torchs one (2); The side of described gasification zone (B) is connected with feed system (1), and the side of gasification zone (B) is also provided with inlet mouth (4), and the bottom surface of gasification zone (B) is provided with the fire grate (5) for carrying rubbish and separation waste residue melting zone (C); Be provided with in the middle of the side of described waste residue melting zone (C) three around plasma torch two (6).
2. a kind of integral type rubbish plasma gasification stove with water wall according to claim 1, is characterized in that: described plasma torch one (2) is installed on the middle undergauge place of upper area.
3. a kind of integral type rubbish plasma gasification stove with water wall according to claim 1, is characterized in that: the top of described synthetic gas reformer section (A) is provided with outlet (3).
4. a kind of integral type rubbish plasma gasification stove with water wall according to claim 1, is characterized in that: plasma torch two (6) is 120 degree of angles each other and is 45 degree of angles with ground.
5. a kind of integral type rubbish plasma gasification stove with water wall according to claim 1, is characterized in that: the bottom of described waste residue melting zone (C) is provided with slag-drip opening (7).
6. a kind of integral type rubbish plasma gasification stove with water wall according to claim 1, is characterized in that: the inwall of described vapourizing furnace is provided with water wall (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420767706.6U CN204325274U (en) | 2014-12-09 | 2014-12-09 | A kind of integral type rubbish plasma gasification stove with water wall |
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|---|---|---|---|
| CN201420767706.6U CN204325274U (en) | 2014-12-09 | 2014-12-09 | A kind of integral type rubbish plasma gasification stove with water wall |
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| CN204325274U true CN204325274U (en) | 2015-05-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104449854A (en) * | 2014-12-09 | 2015-03-25 | 中国东方电气集团有限公司 | Integrated garbage plasma gasifier with water-cooling wall |
| CN110411210A (en) * | 2019-08-26 | 2019-11-05 | 上海和惠生态环境科技有限公司 | A kind of plasmatorch melting plant accurately controlling temperature and its application |
-
2014
- 2014-12-09 CN CN201420767706.6U patent/CN204325274U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104449854A (en) * | 2014-12-09 | 2015-03-25 | 中国东方电气集团有限公司 | Integrated garbage plasma gasifier with water-cooling wall |
| CN110411210A (en) * | 2019-08-26 | 2019-11-05 | 上海和惠生态环境科技有限公司 | A kind of plasmatorch melting plant accurately controlling temperature and its application |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20180504 Address after: 610000 18 West core road, hi-tech West District, Chengdu, Sichuan Patentee after: Dongfang Electric Co., Ltd. Address before: 610036 Shu Han Road, Jinniu District, Chengdu, Sichuan Province, No. 333 Patentee before: Dongfang Electric Corporation |