CN108954344B - Harmless treatment method for industrial waste salt residues - Google Patents
Harmless treatment method for industrial waste salt residues Download PDFInfo
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- CN108954344B CN108954344B CN201810850987.4A CN201810850987A CN108954344B CN 108954344 B CN108954344 B CN 108954344B CN 201810850987 A CN201810850987 A CN 201810850987A CN 108954344 B CN108954344 B CN 108954344B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/033—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment comminuting or crushing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/10—Drying by heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/80—Shredding
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/10—Waste heat recuperation reintroducing the heat in the same process, e.g. for predrying
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- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a harmless treatment method of industrial waste salt residues, which comprises the steps of screening pretreatment, drying pretreatment, oxygen blowing and molten salt blowing, cooling and crushing, flue gas incineration and the like. Compared with the prior art, the invention has the characteristics of high economic value, no secondary pollution to the environment and improved heat utilization rate.
Description
Technical Field
The invention relates to the field of environmental protection, in particular to a harmless treatment method for industrial waste salt residues.
Background
In the organic synthesis industry, the fine chemical industry, the pesticide industry, the biomedical industry and other industries, alkalization or acidification neutralization reaction is often adopted in the production process, and the final result is a large amount of salt-containing wastewater, however, the salt-containing wastewater often contains a great variety of organic products, has considerable toxicity and harmfulness, and is difficult to treat, so that the storage and harmless treatment of the high-salt-content wastewater become the biggest problems in the industry, at present, many enterprises adopt a heating and drying method to evaporate the salt-containing wastewater to obtain solid waste salt in order to reduce the amount of the waste liquid, which greatly reduces the volume of the salt-containing wastewater, but the generated waste salt cannot be treated, at present, the waste salt is listed in a dangerous waste list by the national environmental protection department, and the continuous accumulation and storage can cause serious environmental hidden dangers and pollution risks, and once the diffusion and leaching out can cause huge environmental pollution events, meanwhile, the current situation that a large amount of waste salt is accumulated and stored and cannot be treated in most enterprises also brings great environmental protection pressure to the enterprises. The method has incomplete statistics, and the annual industrial waste salt yield of the whole country reaches thousands of tons, wherein chemical industries (such as Shandong, Jiangsu, Zhejiang and the like) account for more than 50 percent of the total amount.
Currently, the existing disposal techniques are:
1. the direct thermal combustion method is adopted, namely waste salt powder is sprayed into the incinerator, organic matters are decomposed and destroyed at high temperature, however, the inorganic salt has a melting point of over 800 ℃ generally, and is melted at high temperature, so that the problems of wall adhesion, material damage, equipment corrosion, flue blockage and the like of the incinerator are caused, and no normally used equipment exists at present.
2. In consideration of the improvement of the process by high-temperature melting of inorganic salt, a thermal (cracking) decomposition carbonization process is generally adopted, namely waste salt powder is continuously put into a pyrolysis carbonization kiln, and organic matters in the waste salt powder are decomposed and gasified at a temperature lower than the melting point of the inorganic salt (lower than 700 ℃) under the condition of oxygen-controlled atmosphere, but the process solves the problem of inorganic salt melting, but the organic matters cannot be completely destroyed due to low thermal cracking temperature, and even the concentration change of the decomposed gas easily causes safety problems such as explosion and the like due to uncertain types and contents of the organic matters in the waste salt.
3. In the landfill treatment of industrial waste salt, because the waste salt has high water solubility and contains toxic and harmful organic pollutants, the waste salt causes fatal impact on a landfill sewage system, and needs to be subjected to deep landfill after stable curing according to the national hazardous waste treatment standard. The method has the advantages of large technical difficulty (seepage prevention, water prevention, leakage prevention and the like), large occupied area, high investment cost and risk of secondary environmental hazard caused by factors such as geological disasters and the like.
In summary, no effective method for successfully treating industrial waste salt exists in China at present, so that the treatment is centralized, industrialized and recycled.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the defects of the prior art, the invention provides the harmless treatment method of the industrial waste salt slag, which has high economic value, does not cause secondary pollution to the environment and simultaneously improves the heat utilization rate.
The technical scheme is as follows: the invention discloses a harmless treatment method of industrial waste salt residues, which is characterized by comprising the following steps: the method comprises the following steps:
(1) screening pretreatment: crushing and screening the waste salt slag according to the category, and then feeding the waste salt slag into a material distribution area of a molten salt furnace, wherein the waste salt slag is divided into two layers, one layer is used for sealing a feed inlet, and the other layer is conveyed to a molten salt chamber after vibration mixing;
(2) drying pretreatment: the residual heat of the flue gas in the molten salt chamber is used as a drying heat source, and 80-90% of free water is removed by drying when the waste salt slag passes through a waste salt drying zone;
(3) oxygen blowing molten salt: after the dried waste salt slag passes through a waste salt pyrolysis zone, heating the waste salt slag to a molten liquid state by blowing oxygen into a waste salt working zone for combustion, controlling the melting temperature to be 1120-1180 ℃, enabling the liquid salt slurry to flow into a molten salt pool, and controlling the temperature of the molten salt pool to be 920-980 ℃;
(4) cooling and crushing: taking out the molten salt pool, cooling, crushing the condensed salt blocks in a crusher to 10cm in volume3Grinding the blocky solid to obtain a powdery product;
(5) flue gas incineration: and (3) burning the flue gas generated in the molten salt chamber in a secondary combustion chamber, controlling the burning temperature to be 1080-1130 ℃, controlling the burning residence time to be more than 2s, recycling the generated tail gas in a waste heat boiler, and recycling the byproduct steam in a steam recycling pipe network.
The molten salt furnace is designed in a partition mode, a material distribution area and a molten salt chamber are sequentially arranged on the left side of the furnace body from top to bottom, a flue gas channel is arranged between the material distribution area and the molten salt chamber, a waste salt drying area, a waste salt pyrolysis area and a waste salt working area are sequentially arranged in the molten salt chamber from top to bottom, a secondary combustion chamber and a molten salt pool are sequentially arranged on the right side of the furnace body from top to bottom, the side part of one side of the secondary combustion chamber is connected with the flue gas channel, and the side part of the other side of the secondary combustion chamber is; the bottom of the molten salt chamber is of a slope structure and is connected with the molten salt pool at the slope bottom; and a feeding hole is formed in the side part of the material distribution area.
And combustion-supporting devices are arranged on the side parts of the molten salt chamber, the secondary combustion chamber and the molten salt pool.
The flue gas in the molten salt furnace enters the secondary combustion chamber through a flue gas channel between the waste salt working area, the waste salt pyrolysis area, the waste salt drying area, the material distribution area and the waste salt drying area, and then is discharged from a flue gas outlet at the side part of the secondary combustion chamber to enter a channel connected with the waste heat boiler.
Wherein, zirconia beads with the diameter of 0.1 mm-0.3 mm are added as grinding media during grinding in the step.
Wherein, the recycling pipe network in the step comprises a plant area self-use steam pipe network and an urban steam pipe network.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages: according to the invention, the waste salt slag is reasonably classified and treated, so that the recycling and value maximization of the salt slag can be effectively realized; the waste salt slag is prepared into a product, the flue gas is subjected to secondary combustion, and the generated tail gas is subjected to waste heat recovery, so that secondary pollution to the environment is avoided, and the heat utilization rate is improved; through the design of the waste salt drying area, the waste salt pyrolysis area and the waste salt working area, the heat energy utilization rate is improved, and inorganic salt is prevented from escaping; the unification of environment, society and economy in the true sense is realized, a full closed loop is disposed, and the value of circular economy is embodied.
Drawings
FIG. 1 is a schematic view of the structure of a molten salt furnace according to the present invention;
in the figure, 1 is a material distribution area, 2 is a waste salt drying area, 3 is a waste salt pyrolysis area, 4 is a waste salt working area, 5 is a molten salt chamber, 6 is a secondary combustion chamber, and 7 is a molten salt pool.
Detailed Description
The technical solution of the present invention is further described with reference to the accompanying drawings and the detailed description.
The invention relates to a harmless treatment method of industrial waste salt residues, which comprises the following steps:
(1) screening pretreatment: crushing and screening the waste salt slag according to the category, then feeding the waste salt slag into a material distribution area 1 of a molten salt furnace, wherein the waste salt slag is divided into two layers, one layer is used for sealing a feed inlet, and the other layer is conveyed to a molten salt chamber 5 after vibration mixing;
(2) drying pretreatment: the residual heat of the flue gas of the molten salt chamber 5 is used as a drying heat source, and 80-90% of free water is removed by drying when the waste salt slag passes through the waste salt drying area 2;
(3) oxygen blowing molten salt: after the dried waste salt slag passes through a waste salt pyrolysis zone 3, heating the waste salt slag to a molten liquid state by blowing oxygen into a waste salt working zone 4 for combustion, controlling the melting temperature to be 1120-1180 ℃, enabling the liquid salt slurry to flow into a molten salt pool 7, and controlling the temperature of the molten salt pool 7 to be 920-980 ℃;
(4) cooling and crushing: taking out the molten salt pool 7 for cooling, and crushing the condensed salt blocks in a crusher to 10cm in volume3Grinding the blocky solid to obtain a powdery product; during grinding, zirconia beads with the diameter of 0.1 mm-0.3 mm are added as grinding media;
(5) flue gas incineration: the flue gas generated by the molten salt chamber 5 enters a secondary combustion chamber 6 for incineration, the incineration temperature is controlled to be 1080-1130 ℃, the incineration retention time is more than 2s, the generated tail gas enters a waste heat boiler for waste heat recovery, and the byproduct steam enters a steam recycling pipe network for recycling; the recycling pipe network comprises a plant area self-use steam pipe network and an urban steam pipe network.
The molten salt furnace is designed in a partition mode, a material distribution area 1 and a molten salt chamber 5 are sequentially arranged on the left side of the furnace body from top to bottom, a flue gas channel is arranged between the material distribution area 1 and the molten salt chamber 5, a waste salt drying area 2, a waste salt pyrolysis area 3 and a waste salt working area 4 are sequentially arranged in the molten salt chamber 5 from top to bottom, a secondary combustion chamber 6 and a molten salt pool 7 are sequentially arranged on the right side of the furnace body from top to bottom, one side part of the secondary combustion chamber 6 is connected with the flue gas channel, and the other side part of the secondary combustion chamber 6 is connected with a; the bottom of the molten salt chamber 5 is of a slope structure and is connected with a molten salt pool 7 at the slope bottom; the side part of the material distribution area 1 is provided with a feeding hole. And combustion-supporting devices are arranged on the side parts of the molten salt chamber 5, the secondary combustion chamber 6 and the molten salt pool 7.
Wherein, flue gas in the molten salt furnace enters a secondary combustion chamber 6 through a flue gas channel between a waste salt working area 4, a waste salt pyrolysis area 3, a waste salt drying area 2, a material distribution area 1 and the waste salt drying area 2, and then is discharged from a flue gas outlet at the side part of the secondary combustion chamber 6 to enter a channel connected with a waste heat boiler.
Example 1: the method for harmlessly treating the industrial waste salt residues comprises the following steps:
(1) screening pretreatment: crushing and screening the waste salt slag according to the category, then feeding the waste salt slag into a material distribution area 1 of a molten salt furnace, wherein the waste salt slag is divided into two layers, one layer is used for sealing a feed inlet, and the other layer is conveyed to a molten salt chamber 5 after vibration mixing;
(2) drying pretreatment: the residual heat of the flue gas of the molten salt chamber 5 is used as a drying heat source, and 80-90% of free water is removed by drying when the waste salt slag passes through the waste salt drying area 2;
(3) oxygen blowing molten salt: after the dried waste salt slag passes through a waste salt pyrolysis zone 3, heating the waste salt slag to a molten liquid state by blowing oxygen into a waste salt working zone 4 for combustion, controlling the melting temperature to be 1150 ℃, enabling the liquid salt slurry to flow into a molten salt pool 7, and controlling the temperature of the molten salt pool 7 to be 950 ℃;
(4) cooling and crushing: taking out the molten salt pool 7 for cooling, and crushing the condensed salt blocks in a crusher to 10cm in volume3Grinding the blocky solid to obtain a powdery product; during grinding, zirconia beads with the diameter of 0.2mm are added as grinding media;
(5) flue gas incineration: flue gas generated by the molten salt chamber 5 enters a secondary combustion chamber 6 for incineration, the incineration temperature is controlled to be 1100 ℃, the incineration retention time is more than 2s, the generated tail gas enters a waste heat boiler for waste heat recovery, and byproduct steam enters a steam recycling pipe network for recycling; wherein, the recycling pipe network is a steam pipe network used by the plant.
Example 2: the harmless treatment method of the industrial waste salt slag comprises the following steps:
(1) screening pretreatment: crushing and screening the waste salt slag according to the category, then feeding the waste salt slag into a material distribution area 1 of a molten salt furnace, wherein the waste salt slag is divided into two layers, one layer is used for sealing a feed inlet, and the other layer is conveyed to a molten salt chamber 5 after vibration mixing;
(2) drying pretreatment: the residual heat of the flue gas of the molten salt chamber 5 is used as a drying heat source, and 80-90% of free water is removed by drying when the waste salt slag passes through the waste salt drying area 2;
(3) oxygen blowing molten salt: after the dried waste salt slag passes through a waste salt pyrolysis zone 3, heating the waste salt slag to a molten liquid state by blowing oxygen into a waste salt working zone 4 for combustion, controlling the melting temperature to be 1120 ℃, enabling liquid salt slurry to flow into a molten salt pool 7, and controlling the temperature of the molten salt pool 7 to be 920 ℃;
(4) cooling and crushing: taking out the molten salt pool 7 for cooling, and crushing the condensed salt blocks in a crusher to 10cm in volume3Grinding the blocky solid to obtain a powdery product; during grinding, zirconia beads with the diameter of 0.1mm are added as grinding media;
(5) flue gas incineration: flue gas generated by the molten salt chamber 5 enters a secondary combustion chamber 6 for incineration, the incineration temperature is controlled to be 1080 ℃, the incineration retention time is more than 2s, the generated tail gas enters a waste heat boiler for waste heat recovery, and byproduct steam enters a steam recycling pipe network for recycling; wherein, the recycling pipe network is an urban steam pipe network.
Example 3: the method for harmlessly treating the industrial waste salt residues comprises the following steps:
(1) screening pretreatment: crushing and screening the waste salt slag according to the category, then feeding the waste salt slag into a material distribution area 1 of a molten salt furnace, wherein the waste salt slag is divided into two layers, one layer is used for sealing a feed inlet, and the other layer is conveyed to a molten salt chamber 5 after vibration mixing;
(2) drying pretreatment: the residual heat of the flue gas of the molten salt chamber 5 is used as a drying heat source, and 80-90% of free water is removed by drying when the waste salt slag passes through the waste salt drying area 2;
(3) oxygen blowing molten salt: after the dried waste salt slag passes through a waste salt pyrolysis zone 3, heating the waste salt slag to a molten liquid state by blowing oxygen into a waste salt working zone 4 for combustion, controlling the melting temperature to be 1180 ℃, enabling the liquid salt slurry to flow into a molten salt pool 7, and controlling the temperature of the molten salt pool 7 to be 980 ℃;
(4) cooling and crushing: taking out the molten salt pool 7 for cooling, and crushing the condensed salt blocks in a crusher to 10cm in volume3Grinding the blocky solid to obtain a powdery product; during grinding, zirconia beads with the diameter of 0.3mm are added as grinding media;
(5) flue gas incineration: flue gas generated by the molten salt chamber 5 enters a secondary combustion chamber 6 for incineration, the incineration temperature is controlled to be 1130 ℃, the incineration retention time is more than 2s, the generated tail gas enters a waste heat boiler for waste heat recovery, and byproduct steam enters a steam recycling pipe network for recycling; the recycling pipe network comprises a plant area self-use steam pipe network and an urban steam pipe network.
The invention has the following technical breakthroughs:
the invention is provided with a material distribution area 1, waste salt slag enters a furnace after being subjected to screening pretreatment, coarse waste salt is further ground, crushed and screened, and a material distributor adopts a mechanical vibration screening device to distribute materials uniformly, so that the material layer is uniform, and the smoke overflowing permeability is good. The material layer is divided into two subareas, and the material sealing is used for isolating the outside air from entering so as to ensure the constant pressure of the system.
Aiming at the characteristic that the organic matter content of the general industrial waste salt slag is not high (basically 3-5%), the invention solves the problems of large heat loss, high energy consumption, slag bonding, wall hanging, flue blockage and the like of inorganic salt steam and dust on the furnace wall in the traditional molten salt furnace process, and has the advantages that through the partition design of the waste salt drying area 2, the waste salt pyrolysis area 3 and the waste salt working area 4: the thermal efficiency is high, the high-temperature flue gas of the fused salt is fully utilized to carry out pyrolysis and dysphoria treatment on the waste salt slag after the subsequent treatment, the utilization rate of the waste heat of the flue gas is greatly improved, the fuel loss is reduced, the energy is saved by more than 50 percent, and the high-capacity treatment can be realized; the advantages are two: through the subregion design, effectively solve the escape problem of molten state inorganic salt, molten state inorganic salt can't pass through waste salt pyrolysis zone 3 and waste salt drying zone 2, the content of inorganic salt in the flue gas that significantly reduces has solved the jam, the corruption problem of system flue gas passageway etc..
The invention prepares the waste salt slag into a product, carries out secondary combustion on the flue gas, and carries out waste heat recovery on the generated tail gas, thereby not causing secondary pollution to the environment and simultaneously improving the heat utilization rate.
According to the invention, the waste salt slag is reasonably classified and treated, so that the recycling and value maximization of the salt slag can be effectively realized. Through comprehensive evaluation of the technical and economic performance of a pilot plant, the treatment cost of the waste salt slag is about 1500 yuan/ton, the total investment of 30000 tons/year treatment scale is about 4000 ten thousand yuan, 5000 yuan/ton is charged according to a centralized treatment center and the resource value is 200 yuan/ton, the annual output value can be 1.1 million, the economic benefit is prominent compared with the traditional process, the environment, the society and the economy are unified in a real sense, the treatment is fully closed-loop, and the recycling economic value is reflected.
Claims (4)
1. The harmless treatment method of the industrial waste salt slag is characterized by comprising the following steps: the method comprises the following steps:
1) screening pretreatment: crushing and screening the waste salt slag according to the category, and then feeding the waste salt slag into a material distribution area (1) of a molten salt furnace, wherein the waste salt slag is divided into two layers, one layer is used for sealing a feed inlet, and the other layer is conveyed to a molten salt chamber (5) after vibration mixing;
2) drying pretreatment: the residual heat of the flue gas of the molten salt chamber (5) is used as a drying heat source, and 80-90% of free water is removed by drying when the waste salt slag passes through the waste salt drying area (2);
3) oxygen blowing molten salt: after the dried waste salt slag passes through a waste salt pyrolysis zone (3), heating the waste salt slag to a molten liquid state by blowing oxygen into a waste salt working zone (4) for combustion, controlling the melting temperature to be 1120-1180 ℃, and enabling the liquid salt slurry to flow into a molten salt pool (7), wherein the temperature of the molten salt pool (7) is controlled to be 920-980 ℃;
4) cooling and crushing: will be provided withTaking out the molten salt pool (7) for cooling, and crushing the condensed salt blocks in a crusher to 10cm in volume3Grinding the blocky solid to obtain a powdery product;
5) flue gas incineration: flue gas generated by the molten salt chamber (5) enters a secondary combustion chamber (6) for incineration, the incineration temperature is controlled to be 1080-1130 ℃, the incineration retention time is more than 2s, the generated tail gas enters a waste heat boiler for waste heat recovery, and byproduct steam enters a steam recycling pipe network for recycling;
the molten salt furnace is designed in a partition mode, a material distribution area (1) and a molten salt chamber (5) are sequentially arranged on the left side of the furnace body from top to bottom, a flue gas channel is arranged between the material distribution area (1) and the molten salt chamber (5), a waste salt drying area (2), a waste salt pyrolysis area (3) and a waste salt working area (4) are sequentially arranged in the molten salt chamber (5) from top to bottom, a secondary combustion chamber (6) and a molten salt pool (7) are sequentially arranged on the right side of the furnace body from top to bottom, one side part of the secondary combustion chamber (6) is connected with the flue gas channel, and the other side part of the secondary combustion chamber is connected with a flue gas outlet; the bottom of the molten salt chamber (5) is of a slope structure and is connected with a molten salt pool (7) at the slope bottom; a feeding hole is formed in the side part of the material distribution area (1);
the flue gas in the molten salt furnace enters a secondary combustion chamber (6) through a flue gas channel between a waste salt working area (4), a waste salt pyrolysis area (3), a waste salt drying area (2), a distribution area (1) and the waste salt drying area (2), and then is discharged from a flue gas outlet at the side part of the secondary combustion chamber (6) to enter a channel connected with a waste heat boiler.
2. The method for harmlessly treating the industrial waste salt residues according to claim 1, characterized in that: and combustion-supporting devices are arranged on the side parts of the molten salt chamber (5), the secondary combustion chamber (6) and the molten salt pool (7).
3. The method for harmlessly treating the industrial waste salt residues according to claim 1, characterized in that: and (4) adding zirconia beads with the diameter of 0.1-0.3 mm as grinding media during grinding.
4. The method for harmlessly treating the industrial waste salt residues according to claim 1, characterized in that: and (3) the steam recycling pipe network in the step (5) comprises a plant area self-use steam pipe network and an urban steam pipe network.
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| CN109647857A (en) * | 2018-12-25 | 2019-04-19 | 河海大学 | A kind of processing method of industrial waste salt |
| CN109865734A (en) * | 2019-03-13 | 2019-06-11 | 兰州有色冶金设计研究院有限公司 | A method of vitreum is produced using chemical industry abraum salt |
| CN110615451A (en) * | 2019-10-21 | 2019-12-27 | 博天环境集团股份有限公司 | Method and system for recycling and harmlessly treating salt in high-salt-content wastewater |
| CN111112296B (en) * | 2019-12-27 | 2021-05-07 | 洛南环亚源铜业有限公司 | Resource utilization treatment method for industrial waste salt |
| CN111790731B (en) * | 2020-07-20 | 2023-07-18 | 杭州碳氢科技研究有限公司 | Industrial waste salt conversion device and method |
| CN112344338B (en) * | 2020-10-30 | 2022-11-18 | 南京工大环境科技有限公司 | Thermo-chemical treatment based harmless method for medical waste salt |
| CN115283400A (en) * | 2022-08-12 | 2022-11-04 | 上海康思特新材料有限公司 | Industrial waste salt three-fluid oxygen-enriched treatment device, system and process |
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| JPS594811A (en) * | 1982-06-30 | 1984-01-11 | Mitsubishi Heavy Ind Ltd | Controlling method of temperature of incinerator |
| DE3417602A1 (en) * | 1984-01-07 | 1985-07-18 | Caloric Gesellschaft für Apparatebau mbH, 8032 Gräfelfing | Device for thermal oxidation of combustible components of salt solutions |
| FR2722436B1 (en) * | 1994-07-13 | 1996-09-20 | Inst Francais Du Petrole | PROCESS AND PLANT FOR THERMOLYSIS OF WASTE |
| CN106801874B (en) * | 2017-01-18 | 2019-05-07 | 中国科学院过程工程研究所 | A kind of processing method of industrial waste salt |
| CN106914474B (en) * | 2017-04-17 | 2019-06-21 | 辽宁东大粉体工程技术有限公司 | A kind of Processes and apparatus of industrial waste salt decomposition carbonization harmless treatment |
| CN106955575A (en) * | 2017-04-17 | 2017-07-18 | 河南科技学院 | A kind of Biohazard Waste based on fuse salt burns, is pyrolyzed exhaust gas purification system and method |
| CN107218607A (en) * | 2017-06-28 | 2017-09-29 | 郑文敬 | Saliferous dangerous waste incinerator molten slag Cyclonic separating apparatus and its separating technology |
| CN107321755A (en) * | 2017-06-30 | 2017-11-07 | 江苏省环境科学研究院 | A kind of abraum salt process for reclaiming and its special purpose device |
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