CN108640543B - Waste incineration fly ash recycling treatment system and method coupled with waste incineration - Google Patents
Waste incineration fly ash recycling treatment system and method coupled with waste incineration Download PDFInfo
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- CN108640543B CN108640543B CN201810322521.7A CN201810322521A CN108640543B CN 108640543 B CN108640543 B CN 108640543B CN 201810322521 A CN201810322521 A CN 201810322521A CN 108640543 B CN108640543 B CN 108640543B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
- C04B7/26—Cements from oil shales, residues or waste other than slag from raw materials containing flue dust, i.e. fly ash
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/10—Burned or pyrolised refuse
- C04B18/105—Gaseous combustion products or dusts collected from waste incineration, e.g. sludge resulting from the purification of gaseous combustion products of waste incineration
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/04—Heat treatment
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/135—Combustion residues, e.g. fly ash, incineration waste
- C04B33/1355—Incineration residues
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/38—Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
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- 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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
-
- 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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses a garbage incineration fly ash recycling treatment system and method coupled with garbage incineration2Washing with water under bubbling condition to collect chlorine salt, drying fly ash with waste incineration flue gas, adjusting the alkalinity of the fly ash with an additive, granulating the fly ash, conveying the granules into a plasma melting furnace, and cooling fly ash fusion cakes in a cooling pool to obtain harmless granules; and introducing the plasma melting furnace flue gas into a garbage incinerator for secondary treatment. The invention efficiently combines the waste incineration fly ash treatment system with the waste incineration system, realizes zero transportation cost, solves the problem of damp caking phenomenon of fly ash transportation, and realizes the efficient recovery of heavy metals in the waste incineration fly ash and the resource treatment of the waste incineration fly ash.
Description
Technical Field
The invention relates to waste incineration fly ash treatment, in particular to a waste incineration fly ash recycling treatment system and method coupled with waste incineration.
Background
With the rapid development of waste incineration and medical waste incineration, the yield of waste incineration fly ash is increasing year by year. The latest 2016 edition of national records of dangerous wastes lists the fly ash from incineration of household garbage into HW18 incineration disposal residue, i.e., the fly ash must be pretreated to stabilize the pollutants such as heavy metals and dioxin in the fly ash before entering the landfill site of the household garbage. Therefore, the harmless resource treatment of the waste incineration fly ash is urgent.
At present, the methods for treating the waste incineration fly ash at home and abroad mainly comprise three methods of melting sintering, separation and extraction, solidification and stabilization, wherein the melting sintering is the method with the highest reduction amount and the best solidification effect of the waste incineration fly ash, and the plasma melting has the advantages of high melting temperature and good solidification effect of the heavy metal of a molten product, and is paid more and more attention. However, the existing plasma fusion treatment system for the fly ash from waste incineration is mostly independent of the waste incineration system, and has the following serious problems:
(1) the waste incineration fly ash can generate secondary pollution in the transportation process, and the transportation cost is high.
(2) The secondary fly ash is generated in the process of treating the waste incineration fly ash by plasma fusion, and a flue gas treatment system is required to be arranged independently.
(3) The leaching effect of heavy metals in the washing process of the waste incineration fly ash needs to be enhanced.
(4) Residual dioxin is generated in the process of treating the waste incineration fly ash by plasma fusion and needs secondary treatment, so that the investment in the early stage is increased.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a waste incineration fly ash recycling system and method coupled with waste incineration.
The invention is realized by the following technical scheme:
a waste incineration fly ash recycling treatment system coupled with waste incineration comprises a fly ash gathering area, a fly ash bin, a fly ash washing pool, a granulator, a melting furnace and a cooling pool which are sequentially connected; the fly ash in the fly ash gathering area is introduced into a fly ash bin through a pipeline, a fly ash output pipeline of the fly ash bin is introduced into water in a fly ash washing pool, the washed fly ash generated in the fly ash washing pool is connected with the input end of a granulator through a conveying pipeline, is granulated in the granulator and is conveyed into a melting furnace for melting treatment; introducing molten flue gas generated by the melting furnace into a waste incineration system incinerator for secondary treatment; the molten fly ash generated by the melting furnace enters a cooling pool to be cooled to obtain harmless slag; heating and drying the washed fly ash by waste incineration waste heat smoke accessed from the outside of the conveying pipeline; an additive bin is arranged between the heating and drying section of the conveying pipeline and the granulator and is used for mixing additives in a set proportion into the fly ash dried after washing.
Preferably, the fly ash gathering area comprises a dust remover, an acid removal tower and an activated carbon adsorption tower of the waste incineration system.
Preferably, the bottom of the fly ash washing pool is connected with a carbon dioxide bubbling machine, and carbon dioxide with a set amount is introduced in the fly ash washing process.
Preferably, the melting furnace is a plasma melting furnace, a rotary kiln or a clinker furnace.
Preferably, the cooling mode of the cooling pool adopts air cooling, water cooling or liquid nitrogen cooling.
A method for recycling waste incineration fly ash coupled with waste incineration comprises the following steps,
step 1, collecting fly ash; sending the waste incineration fly ash collected in the waste incineration system into a fly ash bin through a pipeline for storage;
step 4, melting and solidifying; the mixture particles are sent into a melting furnace to be melted and solidified at 1400-1600 ℃ to realize the solidification of heavy metal and the decomposition of dioxin; the waste incineration fly ash molten smoke generated by the melting furnace is introduced into a waste incineration system incinerator for further treatment and enters subsequent waste incineration system smoke purification equipment along with the waste incineration smoke; and (3) feeding the waste incineration fly ash melt generated by the melting furnace into a cooling pool, and cooling to obtain vitreous slag.
Preferably, in the step 2, carbon dioxide is introduced into the water washing tank according to the proportion of 1L/min (1-10 Kg) of the carbon dioxide to the waste incineration fly ash to promote the dissolution of heavy metal compounds in the waste incineration fly ash.
Preferably, the proportion of the fly ash to the water in the fly ash washing tank is 1 Kg: (3-10L), the washing time is 5-20 min, and the stirring frequency is 60-300 r/min.
Preferably, the dried waste incineration fly ash is mixed with an additive according to the alkalinity of 0.56-1.78; the additive in the additive bin is kaolin, bentonite or other waste incineration fly ash which enables the alkalinity in a mixture of the fly ash and the additive to be 0.56-1.78.
Preferably, the diameter of the mixture particles is 10-30 mm.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention couples the waste incineration fly ash system with the waste incineration system, completes the harmless treatment of the waste incineration fly ash on site, realizes the zero transportation cost of the waste incineration fly ash, and avoids the secondary pollution caused in the transportation process of the waste incineration fly ash. The waste incineration fly ash after washing is dried by using the waste heat of the flue gas generated by the waste incineration, so that the energy utilization efficiency is improved, and the operation cost is reduced. The waste incineration fly ash melting treatment flue gas is introduced into the waste incinerator, high-temperature flue gas is provided for waste incineration, the operation cost is reduced, the flue gas purification equipment of the waste incineration system is used for purifying secondary flue gas, the separate waste incineration fly ash melting flue gas treatment system is avoided, the construction cost is greatly reduced, the dioxin content is further reduced, and the pollution emission is reduced. And finally, melting the waste incineration fly ash to obtain harmless molten slag which can be used as a building material, has no environmental hazard and does not need to be buried, thereby realizing the resource utilization of the waste incineration fly ash.
Furthermore, the dissolution of heavy metals can be promoted through a carbon dioxide bubbling machine, and the recovery rate of the heavy metals is improved.
Drawings
FIG. 1 is a schematic view of a system for recycling waste incineration fly ash according to an embodiment of the present invention.
Wherein, 1 fly ash gathering area, 2 fly ash bins, 3 fly ash washing pools, 4 carbon dioxide bubbling machines, 5 waste incineration waste heat flue gas, 6 additive bins, 7 granulators, 8 melting furnaces, 9 waste incineration system incinerators and 10 cooling pools.
Detailed Description
The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
The invention relates to a waste incineration fly ash resource treatment system coupled with waste incineration, which comprises a fly ash gathering area 1, a fly ash bin 2, a fly ash washing tank 3, a granulator 7, a melting furnace 8 and a cooling tank 10 which are sequentially connected as shown in figure 1; the fly ash gathering area 1 comprises a dust remover, a deacidification tower and an active carbon adsorption tower of a waste incineration system; the fly ash in the fly ash bin 2 is from the fly ash gathering area 1 and is introduced into the fly ash bin 2 through a pipeline; the fly ash washing tank 3 is connected with a carbon dioxide bubbling machine 4, and a proper amount of carbon dioxide is introduced in the fly ash washing process; the fly ash generated by the fly ash washing tank 3 is dried by the waste incineration waste heat smoke 5 outside the pipeline after being washed, is mixed with the additive in the additive bin 6 in a certain proportion, is made into particles with a certain diameter in the granulator 7, and is conveyed into the melting furnace 8 for melting treatment; the molten smoke generated by the melting furnace 8 is introduced into a waste incineration system incinerator 9 for secondary treatment; and the molten fly ash generated by the melting furnace 8 enters a cooling pool 10 to be cooled to obtain harmless slag.
Wherein, the proportion of the fly ash and the water in the fly ash washing tank 3 is 1 Kg: (3-10L), the washing time is 5-20 min, and the stirring frequency is 60-300 r/min. The ratio of the amount of carbon dioxide introduced into the carbon dioxide bubbling machine 4 to fly ash is 1L/min (1-10 Kg).
The washed fly ash generated by the fly ash washing pool 3 is dried by utilizing the waste incineration waste heat flue gas 5 in an indirect drying mode.
The additive in the additive bin 6 can be kaolin, bentonite and other waste incineration fly ash, so that the alkalinity of the fly ash and the additive mixture is 0.56-1.78.
The diameter of the granules produced by the granulator 7 is 10-30 mm.
The working temperature in the melting furnace 8 is 1400 ℃ to 1600 ℃.
The melter 8 may be a plasma melter, a rotary kiln, a frit furnace, or other high temperature equipment.
The cooling mode of the cooling tank 10 is air cooling, water cooling, liquid nitrogen cooling, etc.
The melted smoke generated by the plasma melting furnace 8 is led into a garbage incineration system incinerator 9, high-temperature smoke is provided for garbage incineration, and the melted smoke and the garbage incineration smoke pass through subsequent purification equipment such as dust removal and deacidification equipment, so that the recovery and purification of the fly ash of the garbage melted smoke are completed.
The invention relates to a waste incineration fly ash recycling method coupled with waste incineration, which comprises the following steps:
the waste incineration fly ash collected in the fly ash collection areas 1 of a dust remover, a deacidification tower, an active carbon adsorption tower and the like of the waste incineration system enters the fly ash bin 2 through a pipeline for storage. Then the fly ash enters a water washing tank 3 according to the proportion of the fly ash to water of 1 Kg: (3-10L) carrying out water washing pretreatment, wherein the water washing time is 5-20 min, the stirring frequency of a stirring rod in a water washing pool is 60r/min, and initially recovering soluble heavy metal compounds and the like in the waste incineration fly ash. And carbon dioxide generated by a carbon dioxide generator is introduced into the water washing tank 3 according to the ratio of the carbon dioxide to the waste incineration fly ash of 1L/min to 1Kg, so that the dissolution of heavy metal compounds in the waste incineration fly ash is promoted. The waste incineration fly ash after washing is conveyed through a pipeline, and waste incineration system waste heat smoke is communicated outside the pipeline to indirectly dry the waste incineration fly ash. And mixing the dried waste incineration fly ash and additive bentonite according to the alkalinity of 0.56-1.78, and feeding the mixture into a granulator 7 to prepare mixture particles with the diameter of 10-30 mm. The mixture particles are sent into a melting furnace 8 for plasma high-temperature melting and solidification, the melting temperature is 1400-1600 ℃, and the solidification of heavy metals and the decomposition of dioxin are realized. The waste incineration fly ash fusion smoke generated by the melting furnace 8 is introduced into the waste incineration system incinerator 9 for further treatment and enters the subsequent waste incineration system smoke purification equipment along with the waste incineration smoke. The waste incineration fly ash melt produced by the melting furnace 8 enters a cooling pool 9, and hard vitreous body slag is obtained through water cooling, and can be used as building materials.
Claims (7)
1. A waste incineration fly ash resource treatment system coupled with waste incineration is characterized by comprising a fly ash gathering area (1), a fly ash bin (2), a fly ash washing tank (3), a granulator (7), a melting furnace (8) and a cooling tank (10) which are sequentially connected; the fly ash in the fly ash gathering area (1) is introduced into a fly ash bin (2) through a pipeline, a fly ash output pipeline of the fly ash bin (2) is introduced into water in a fly ash washing pool (3), the fly ash generated after washing in the fly ash washing pool (3) is connected with the input end of a granulator (7) through a conveying pipeline, is granulated in the granulator (7), and is conveyed into a melting furnace (8) for melting treatment; the molten smoke generated by the melting furnace (8) is introduced into a waste incineration system incinerator (9) for secondary treatment; the melting fly ash generated by the melting furnace (8) enters a cooling pool (10) to be cooled to obtain harmless slag; after washing, heating and drying the fly ash by waste incineration waste heat flue gas (5) accessed from the outside of the conveying pipeline; an additive bin (6) is arranged between the heating and drying section of the conveying pipeline and the granulator (7) and is used for mixing additives in a set proportion into the washed and dried fly ash;
the bottom of the fly ash washing pool (3) is connected with a carbon dioxide bubbling machine (4), and carbon dioxide with a set amount is introduced in the fly ash washing process;
the cooling mode of the cooling pool (10) adopts water cooling or liquid nitrogen cooling.
2. The waste incineration fly ash resource treatment system coupled with waste incineration as claimed in claim 1, wherein the fly ash collection area (1) comprises a dust collector, an acid removal tower and an activated carbon adsorption tower of the waste incineration system.
3. The waste incineration fly ash recycling system coupled with waste incineration as claimed in claim 1, wherein the melting furnace (8) is a plasma melting furnace, a rotary kiln or a clinker furnace.
4. A method for recycling waste incineration fly ash coupled with waste incineration is characterized by comprising the following steps,
step 1, collecting fly ash; sending the waste incineration fly ash collected in the waste incineration system into a fly ash bin (2) through a pipeline for storage;
step 2, water washing pretreatment; sending the fly ash in the fly ash bin (2) into a washing pool (3) for washing, and primarily recovering soluble heavy metal compounds in the waste incineration fly ash; carbon dioxide is introduced into the water washing tank (3) according to the proportion of 1L/min (1-10 Kg) of the carbon dioxide to the waste incineration fly ash to promote the dissolution of heavy metal compounds in the waste incineration fly ash;
step 3, drying and granulating; conveying the washed waste incineration fly ash through a pipeline, and indirectly drying the waste incineration fly ash by waste heat and smoke of a waste incineration system through the pipeline; mixing the dried waste incineration fly ash with an additive, and then sending the mixture into a granulator (7) to prepare mixture particles;
step 4, melting and solidifying; the mixture particles are sent into a melting furnace (8) to be melted and solidified at 1400-1600 ℃ to realize the solidification of heavy metal and the decomposition of dioxin; the waste incineration fly ash molten smoke generated by the melting furnace (8) is introduced into a waste incineration system incinerator (9) for further treatment and enters subsequent waste incineration system smoke purification equipment along with the waste incineration smoke; and (3) feeding the waste incineration fly ash melt generated by the melting furnace (8) into a cooling pool (9), and cooling to obtain vitreous slag.
5. The method for recycling fly ash from waste incineration as claimed in claim 4, wherein the ratio of fly ash to water in the fly ash washing tank (3) is 1 Kg: (3-10L), the washing time is 5-20 min, and the stirring speed is 60-300 r/min.
6. The method for recycling waste incineration fly ash coupling with waste incineration as claimed in claim 4, wherein the dried waste incineration fly ash is mixed with an additive according to a proportion of alkalinity of 0.56-1.78; the additive in the additive bin (6) is kaolin, bentonite or other garbage incineration fly ash which enables the alkalinity in a mixture of the fly ash and the additive to be 0.56-1.78.
7. The method for recycling fly ash from waste incineration coupled with waste incineration as claimed in claim 4, wherein the particle diameter of the mixture is 10-30 mm.
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| CN109647849B (en) * | 2018-12-06 | 2021-03-05 | 上海金山环境再生能源有限公司 | Waste incineration waste gas and fly ash cooperative treatment system |
| CN109654509A (en) * | 2019-01-18 | 2019-04-19 | 西安空天能源动力智能制造研究院有限公司 | A kind of corona treatment danger wastes device |
| CN110410798A (en) * | 2019-08-02 | 2019-11-05 | 宇创环保产业有限公司 | A kind of glassy state slag production permeable system in sponge city of domestic garbage burning electricity generation flying dust plasma melting |
| CN112275782B (en) * | 2020-10-30 | 2023-12-05 | 南京师范大学 | Fly ash washing device and method based on carbon dioxide tempering |
| CN112676321A (en) * | 2021-01-07 | 2021-04-20 | 武汉中科固废资源产业技术研究院有限公司 | Method and system for cooperatively treating waste incineration fly ash in steel mill |
| CN113251423A (en) * | 2021-05-10 | 2021-08-13 | 合肥工业大学 | Stabilization treatment system and treatment method for household garbage incineration ash |
| CN113294790B (en) * | 2021-05-28 | 2022-08-23 | 浙江工商大学 | Hazardous waste vitrification regulation and control system and method |
| CN113843255B (en) * | 2021-09-13 | 2023-10-27 | 生态环境部华南环境科学研究所 | Sectional type stabilization treatment method and system for household garbage incineration fly ash |
| CN113735468A (en) * | 2021-09-18 | 2021-12-03 | 江苏梵坤环保科技发展股份有限公司 | Waste incineration fly ash recycling treatment system and method coupled with waste incineration |
| CN114210716B (en) * | 2021-11-11 | 2022-12-13 | 浙江大学 | Method for efficiently solidifying heavy metal in waste incineration fly ash and synergistically fixing carbon |
| CN115283424A (en) * | 2022-04-13 | 2022-11-04 | 江山市虎鼎环保科技有限公司 | Method for co-processing medical waste incineration fly ash and household garbage incineration fly ash |
| CN115475814B (en) * | 2022-10-18 | 2024-04-12 | 氢环环保科技(上海)有限公司 | Waste incineration fly ash fusion treatment process and system |
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| CN102825059B (en) * | 2012-09-05 | 2015-07-01 | 沈阳航空航天大学 | Safe pretreatment method for resource utilization of incinerated fly ash |
| JP2015054313A (en) * | 2013-09-13 | 2015-03-23 | 大阪瓦斯株式会社 | Processing method of incineration ash and incineration apparatus |
| CN106824983A (en) * | 2017-01-10 | 2017-06-13 | 北京科技大学 | A kind of detoxification of incineration of refuse flyash Zhong bioxin and heavy metal |
| CN106903130B (en) * | 2017-03-03 | 2018-12-14 | 东南大学 | A kind of method that medium temperature is heat-treated firm incineration of refuse flyash heavy metal |
| CN107030093A (en) * | 2017-05-03 | 2017-08-11 | 江苏天楹环保能源成套设备有限公司 | One kind combines washing and plasma fusion handles flying ash system |
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