CN203494881U - Plasma thermal decomposition melting furnace - Google Patents
Plasma thermal decomposition melting furnace Download PDFInfo
- Publication number
- CN203494881U CN203494881U CN201320620438.0U CN201320620438U CN203494881U CN 203494881 U CN203494881 U CN 203494881U CN 201320620438 U CN201320620438 U CN 201320620438U CN 203494881 U CN203494881 U CN 203494881U
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- crucible
- plasma
- melting furnace
- thermal decomposition
- metal shell
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- 238000002844 melting Methods 0.000 title claims abstract description 33
- 230000008018 melting Effects 0.000 title claims abstract description 33
- 238000005979 thermal decomposition reaction Methods 0.000 title abstract 6
- 238000007599 discharging Methods 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 10
- 238000004880 explosion Methods 0.000 claims abstract description 8
- 238000013022 venting Methods 0.000 claims abstract description 8
- 238000000197 pyrolysis Methods 0.000 claims description 24
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 239000003063 flame retardant Substances 0.000 claims description 13
- 239000011248 coating agent Substances 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 10
- 239000000428 dust Substances 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 claims description 3
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 8
- 238000011282 treatment Methods 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 4
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 3
- 239000004615 ingredient Substances 0.000 abstract 2
- 239000011521 glass Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 239000011257 shell material Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 239000002920 hazardous waste Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 150000003071 polychlorinated biphenyls Chemical class 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 150000002013 dioxins Chemical class 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000002906 medical waste Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
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- Gasification And Melting Of Waste (AREA)
Abstract
The utility model belongs to dangerous waste treatment device, and specifically relates to a plasma thermal decomposition melting furnace. The plasma thermal decomposition melting furnace comprises a furnace body, wherein the furnace body comprises a crucible, a refractory layer, a thermal insulating layer and a metal shell, the refractory layer is arranged outside the crucible, the upper part outside the refractory layer is provided with the thermal insulating layer and the lower part outside the refractory layer is provided with the metal shell, the upper part of the crucible is provided with a feed port, an observation port, a negative pressure measuring and explosion venting port and a combustible gas outlet, the lower part of the crucible is provided with a plasma torch and an air supply port, and the bottom of the crucible is provided with a glass body discharging port. The plasma thermal decomposition melting furnace has the following advantages that direct-current non-transferred arc plasma technology and reducing atmosphere are used, waste does not need to be sorted, thermal decomposition and melting are finished synchronously, device size is reduced, and treatment technology is simplified; organic ingredients in the waste are thermally decomposed rapidly and thoroughly, inorganic ingredients are melted at high temperature, and products are steady; a high-temperature fire grate divides the furnace body into a thermal decomposition region and a melting region, and therefore, volatilization of heavy metals can be reduced.
Description
Technical field
The utility model belongs to a kind of hazardous waste treating apparatus, is specifically related to a kind of pyrolysis melting furnace that adopts arc-plasma to process hazardous waste.
Background technology
Plasma technique is in field extensive uses such as machinery, metallurgy, materials, and it is the new technology that recent two decades grows up that plasma technique is applied to refuse processing.
Hazardous waste refers to domestic waste, general industry refuse etc. and compares, the special refuse with characteristics such as corrosivity, reactivity, Leaching, inflammable and explosive, infectiousness and radioactivity, it is dealt with improperly, can produce the discarded object of serious harm to health and environment.Processing for hazardous waste at present mainly comprises recovery, chemical treatment, burning etc., especially for catastrophe risk refuse as clinical waste, Polychlorinated biphenyls (PCB), flying ash, asbestos etc., because its toxicity is large, environmental risk is high, be difficult to management and not recyclable, must adopt safer processing method.Tradition incinerating method can be realized refuse and subtract appearance, but has the problems such as bioxin, slag stability, is not suitable for catastrophe risk treatment of wastes produced.
Cement Composite Treated by Plasma refuse technology is to utilize the high warm plasma that plasma torch produces that refuse fast decoupled is destroyed, and wherein organic matter pyrolysis is flammable small-molecule substance, and inorganic matter generates glass-like body residue after by high-temperature fusion.This technology has the features such as reaction speed is fast, secondary pollution is little, applied widely, it has overcome that conventional process technology is as large in secondary pollutions such as burning, chemical treatments, complex process, to shortcomings such as refuse are selective, be particularly suitable for the environmental protection treatment of the catastrophe risk refuses such as spent resin, asbestos, flying ash.Using plasma burns curing technology can obtain the high temperature higher than 1500 ℃, does not produce two evils because of (Dioxin) class material, processes more thorough.
Summary of the invention
The purpose of this utility model is to provide a kind of plasma pyrolysis melting furnace, and it can safe handling catastrophe risk refuse.
The utility model is to realize like this, plasma pyrolysis melting furnace, it comprises body of heater, and body of heater comprises crucible, flame retardant coating, thermal insulation layer and metal shell, wherein, crucible is provided with flame retardant coating outward, the outer top of flame retardant coating is provided with thermal insulation layer, and bottom is provided with metal shell, and the top of crucible is provided with charging aperture, observation port, negative pressure is measured and venting of dust explosion mouth and combustible gas outlet, the bottom of crucible is provided with plasma torch and air taking port, and the bottom of crucible has vitreum discharging opening.
Described crucible, flame retardant coating, thermal insulation layer and metal shell material are respectively AZS, alumina hollow ball, aluminium silicate fiber peacekeeping stainless steel.
Described discharging opening overcoat has induction coil.
The middle part of described crucible is provided with high temperature fire grate.
Described crucible is provided with 3 cover plasma torch, radially 120 ° of layouts.
The utility model has the advantages that, (1) adopts the non-transferred arc plasma technique of direct current, reducing atmosphere, and refuse is without sorting, and pyrolysis melting synchronously completes, and reduces equipment volume, shortens treatment process; (2) the thorough fast pyrogenation of organic principle in refuse, inorganic constituents high-temperature fusion, product is stable; (3) high temperature fire grate is divided into pyrolysis zone and melting zone by body of heater, can reduce the volatilization of heavy metal.
Accompanying drawing explanation
Fig. 1 is plasma pyrolysis melting furnace schematic diagram provided by the utility model.
In figure, 1 charging aperture, 2 observation ports, 3 thermal insulation layers, 4 negative pressure are measured and venting of dust explosion mouth, 5 plasma torch, 6 crucibles, 7 shells, 8 vitreum discharging openings, 9 induction coils, 10 flame retardant coatings, 11 melting zones, 12 air taking ports, 13 high temperature fire grates, 14 pyrolysis zone, 15 combustible gas outlets.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail:
As shown in Figure 1, a kind of plasma pyrolysis melting furnace mainly comprises charging aperture 1, observation port 2, thermal insulation layer 3, negative pressure measurement and venting of dust explosion mouth 4, plasma torch 5, crucible 6, shell 7, vitreum discharging opening 8, induction coil 9, flame retardant coating 10, melting zone 11, air taking port 12, high temperature fire grate 13, pyrolysis zone 14, combustible gas outlet 15.
Body of heater comprises crucible 6, flame retardant coating 10, thermal insulation layer 3 and metal shell 7, and material is respectively AZS, alumina hollow ball, aluminium silicate fiber peacekeeping stainless steel.Wherein, crucible 6 overcoats have flame retardant coating 10, the outer top of flame retardant coating 10 cover has thermal insulation layer 3, bottom cover has metal shell 7, the top of crucible 6 is also connected with charging aperture 1, observation port 2, negative pressure is measured and venting of dust explosion mouth 4 and combustible gas outlet 15, and the bottom of crucible 6 is connected with plasma torch 5 and air taking port 12, and the bottom of crucible 6 has vitreum discharging opening 8, discharging opening 8 overcoats have induction coil 9, and the middle part of crucible 6 is provided with high temperature fire grate 13.
Body of heater is provided with observation port 2, and for monitoring pyrolysis melting situation in stove, air taking port 12 can be sent into steam or appropriate oxygen, removal pyrolysis is burnt, and negative pressure is measured and venting of dust explosion mouth 4 is measured for body of heater negative pressure, links with tail gas air-introduced machine, venting of dust explosion mouth mounting safety valve, improves body of heater security.Vitreum discharging opening 8 arranges load coil 9, for vitreum heating and discharging.Melting zone arranges 3 cover plasma torch 5, and radially 120 ° of layouts, have a down dip 15 ° and install, and the refuse in heating and melting district, forms 1500 ℃ of above even hot environments refuse in heating and melting district simultaneously simultaneously.
Operation principle of the present utility model is as follows:
First successively start 3 cover plasma torch 5, preheating plasma furnace, is heated to the temperature of melting zone 11 more than 1200 ℃.Refuse is through pretreatment, by feed arrangement, from body of heater its top feed mouth 1, enter pyrolysis zone 14, rest on high temperature fire grate 13, organic principle pyrolytic, generate imflammable gas, from combustible gas outlet 15, discharge, enter rear class combustion chambers burn, inorganic constituents falls to melting zone 11, and through plasma high-temperature, melting becomes fused mass that can be mobile, and heavy metal mixes with fused mass, while needing discharging, induction coil 9 is by discharging opening 8 heating, and cooling curing after fused mass flows out, forms stable vitreum product.Air taking port 12 can be sent into steam or appropriate oxygen, removes pyrolysis Jiao that organic matter pyrolysis generates, and produces imflammable gas and enters rear class combustion chamber.
The operational factor of this device is as follows:
(1) plasma torch general power 100～300kW is adjustable, and working gas amount is 30Nm3/h.
(2) plasma pyrolysis melting furnace disposal ability 50～100kg/h.
(3) during plasma furnace stable operation, melting zone temperature is greater than 1500 ℃, and pyrolysis zone temperature is greater than 800 ℃.
Body of heater is installed 3 cover plasma torch, at melting zone, form a more than 1500 ℃ even hot environment, refuse enters from body of heater top, rest on pyrolysis zone more than high temperature fire grate, organic principle decomposes, and generates imflammable gas and enters rear class combustion chamber, inorganic constituents falls to melting zone, through plasma high-temperature melting, from eddy-current heating discharging opening, discharge, form stable vitreum product.Plasma working gas is nitrogen, in plasma furnace, is reducing atmosphere.
Claims (5)
1. plasma pyrolysis melting furnace, it is characterized in that: it comprises body of heater, body of heater comprises crucible (6), flame retardant coating (10), thermal insulation layer (3) and metal shell (7), wherein, the outer flame retardant coating (10) that is provided with of crucible (6), the outer top of flame retardant coating (10) is provided with thermal insulation layer (3), bottom is provided with metal shell (7), the top of crucible (6) is provided with charging aperture (1), observation port (2), negative pressure is measured and venting of dust explosion mouth (4) and combustible gas outlet (15), the bottom of crucible (6) is provided with plasma torch (5) and air taking port (12), the bottom of crucible (6) has vitreum discharging opening (8).
2. plasma pyrolysis melting furnace as claimed in claim 1, is characterized in that: described crucible (6), flame retardant coating (10), thermal insulation layer (3) and metal shell (7) material are respectively AZS, alumina hollow ball, aluminium silicate fiber peacekeeping stainless steel.
3. plasma pyrolysis melting furnace as claimed in claim 1, is characterized in that: described discharging opening (8) overcoat has induction coil (9).
4. plasma pyrolysis melting furnace as claimed in claim 1, is characterized in that: the middle part of described crucible (6) is provided with high temperature fire grate (13).
5. plasma pyrolysis melting furnace as claimed in claim 1, is characterized in that: described crucible (6) is provided with 3 cover plasma torch (5), radially 120 ° of layouts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320620438.0U CN203494881U (en) | 2013-10-09 | 2013-10-09 | Plasma thermal decomposition melting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320620438.0U CN203494881U (en) | 2013-10-09 | 2013-10-09 | Plasma thermal decomposition melting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203494881U true CN203494881U (en) | 2014-03-26 |
Family
ID=50325888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320620438.0U Expired - Lifetime CN203494881U (en) | 2013-10-09 | 2013-10-09 | Plasma thermal decomposition melting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203494881U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224435A (en) * | 2018-01-31 | 2018-06-29 | 青岛天和清原科技有限公司 | A kind of middle low-level waste heat chemistry integrated treatment unit |
| CN109469910A (en) * | 2018-12-05 | 2019-03-15 | 航天环境工程有限公司 | A kind of continuous overflow deslagging plasma melting furnace and application |
| CN110176322A (en) * | 2019-05-13 | 2019-08-27 | 江苏天楹环保能源成套设备有限公司 | A kind of middle low-activity solid waste volume reduction processing system and its method |
| 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 |
| CN110527559A (en) * | 2019-09-04 | 2019-12-03 | 刘冠诚 | A kind of plasma gasification melting tailings environmental-friendly treatment furnace |
| CN114011483A (en) * | 2021-11-10 | 2022-02-08 | 中国核动力研究设计院 | Container for zirconium alloy molten pool and cooling water test and preparation method thereof |
| CN114934189A (en) * | 2022-06-21 | 2022-08-23 | 北京奥邦新材料有限公司 | Plasma heating refining furnace capable of continuously refining precious metals |
| CN117102216A (en) * | 2023-10-11 | 2023-11-24 | 中山中晟环境科技有限公司 | Dangerous solid waste plasma treatment device and method based on artificial intelligence |
-
2013
- 2013-10-09 CN CN201320620438.0U patent/CN203494881U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224435A (en) * | 2018-01-31 | 2018-06-29 | 青岛天和清原科技有限公司 | A kind of middle low-level waste heat chemistry integrated treatment unit |
| CN108224435B (en) * | 2018-01-31 | 2023-09-08 | 青岛天和清原科技有限公司 | Middle-low level waste thermochemical integrated treatment device |
| CN109469910A (en) * | 2018-12-05 | 2019-03-15 | 航天环境工程有限公司 | A kind of continuous overflow deslagging plasma melting furnace and application |
| CN109469910B (en) * | 2018-12-05 | 2024-02-13 | 航天环境工程有限公司 | Continuous overflow deslagging plasma melting furnace and application |
| CN110176322A (en) * | 2019-05-13 | 2019-08-27 | 江苏天楹环保能源成套设备有限公司 | A kind of middle low-activity solid waste volume reduction processing system and its method |
| 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 |
| CN110527559A (en) * | 2019-09-04 | 2019-12-03 | 刘冠诚 | A kind of plasma gasification melting tailings environmental-friendly treatment furnace |
| CN110527559B (en) * | 2019-09-04 | 2024-02-09 | 刘冠诚 | Environment-friendly treatment furnace for plasma gasification molten tailings |
| CN114011483A (en) * | 2021-11-10 | 2022-02-08 | 中国核动力研究设计院 | Container for zirconium alloy molten pool and cooling water test and preparation method thereof |
| CN114934189A (en) * | 2022-06-21 | 2022-08-23 | 北京奥邦新材料有限公司 | Plasma heating refining furnace capable of continuously refining precious metals |
| CN117102216A (en) * | 2023-10-11 | 2023-11-24 | 中山中晟环境科技有限公司 | Dangerous solid waste plasma treatment device and method based on artificial intelligence |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160829 Address after: 610207 Sichuan city of Chengdu province Shuangliu County Avenue West Airport four No. 219 Patentee after: CHENGDU TONGCHUANG MATERIAL SURFACE NEW TECHNOLOGY ENGINEERING CENTER Address before: 610041 No. three, No. two, South Ring Road, Chengdu, Sichuan, 3 Patentee before: SOUTHWESTERN INSTITUTE OF PHYSICS |
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| CP01 | Change in the name or title of a patent holder |
Address after: 610207 Sichuan city of Chengdu province Shuangliu County Avenue West Airport four No. 219 Patentee after: CHENGDU TONGCHUANG MATERIAL SURFACE TECHNOLOGY CO.,LTD. Address before: 610207 Sichuan city of Chengdu province Shuangliu County Avenue West Airport four No. 219 Patentee before: CHENGDU TONGCHUANG MATERIAL SURFACE NEW TECHNOLOGY ENGINEERING CENTER |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 219, section 4, xihanggang Avenue, Shuangliu County, Chengdu, Sichuan 610207 Patentee after: Zhonghe Tongchuang (Chengdu) Technology Co.,Ltd. Address before: No. 219, section 4, xihanggang Avenue, Shuangliu County, Chengdu, Sichuan 610207 Patentee before: CHENGDU TONGCHUANG MATERIAL SURFACE TECHNOLOGY CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140326 |
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| CX01 | Expiry of patent term |