CN114396628A - Process for cooperatively treating organic waste liquid by oxygen-enriched side-blown molten pool smelting furnace - Google Patents
Process for cooperatively treating organic waste liquid by oxygen-enriched side-blown molten pool smelting furnace Download PDFInfo
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- CN114396628A CN114396628A CN202210055867.1A CN202210055867A CN114396628A CN 114396628 A CN114396628 A CN 114396628A CN 202210055867 A CN202210055867 A CN 202210055867A CN 114396628 A CN114396628 A CN 114396628A
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- waste liquid
- organic waste
- molten pool
- oxygen
- smelting furnace
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- 239000007788 liquid Substances 0.000 title claims abstract description 166
- 239000010815 organic waste Substances 0.000 title claims abstract description 144
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 72
- 239000001301 oxygen Substances 0.000 title claims abstract description 72
- 238000003723 Smelting Methods 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 39
- 230000008569 process Effects 0.000 title claims abstract description 33
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000003546 flue gas Substances 0.000 claims abstract description 44
- 239000002920 hazardous waste Substances 0.000 claims abstract description 33
- 239000002893 slag Substances 0.000 claims abstract description 33
- 239000007787 solid Substances 0.000 claims abstract description 24
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000002485 combustion reaction Methods 0.000 claims abstract description 16
- 238000010791 quenching Methods 0.000 claims abstract description 13
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 12
- 230000000171 quenching effect Effects 0.000 claims abstract description 11
- 239000007921 spray Substances 0.000 claims description 45
- 239000002699 waste material Substances 0.000 claims description 33
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 20
- 239000002918 waste heat Substances 0.000 claims description 17
- 239000000428 dust Substances 0.000 claims description 16
- 238000003860 storage Methods 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 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 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 12
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 238000005507 spraying Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 239000010703 silicon Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 238000001704 evaporation Methods 0.000 claims description 8
- 230000008020 evaporation Effects 0.000 claims description 8
- 150000002739 metals Chemical class 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 7
- 229910052791 calcium Inorganic materials 0.000 claims description 7
- 239000011575 calcium Substances 0.000 claims description 7
- 230000004907 flux Effects 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 239000000779 smoke Substances 0.000 claims description 7
- 230000001174 ascending effect Effects 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 230000002378 acidificating effect Effects 0.000 claims description 4
- 238000000889 atomisation Methods 0.000 claims description 4
- 239000006227 byproduct Substances 0.000 claims description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 4
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 4
- 239000000920 calcium hydroxide Substances 0.000 claims description 4
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 150000002367 halogens Chemical class 0.000 claims description 4
- 239000012433 hydrogen halide Substances 0.000 claims description 4
- 229910000039 hydrogen halide Inorganic materials 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 238000010309 melting process Methods 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 4
- 239000010970 precious metal Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 4
- 239000011819 refractory material Substances 0.000 claims description 4
- 239000004071 soot Substances 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 3
- 238000010531 catalytic reduction reaction Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 claims description 3
- 239000000047 product Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000011278 co-treatment Methods 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims description 2
- 238000009344 polyculture Methods 0.000 claims description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 6
- 239000001569 carbon dioxide Substances 0.000 abstract description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 3
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 abstract description 2
- 239000002910 solid waste Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 35
- 238000002844 melting Methods 0.000 description 12
- 230000008018 melting Effects 0.000 description 12
- 239000004568 cement Substances 0.000 description 8
- 239000002480 mineral oil Substances 0.000 description 8
- 235000010446 mineral oil Nutrition 0.000 description 8
- 239000011280 coal tar Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000010849 combustible waste Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000010811 mineral waste Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- -1 organic flux Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000010888 waste organic solvent Substances 0.000 description 1
- 238000009692 water atomization Methods 0.000 description 1
Images
Classifications
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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
- F23G7/04—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste liquors, e.g. sulfite liquors
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
-
- 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
- F23G5/50—Control or safety arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention relates to a process for cooperatively treating organic waste liquid by an oxygen-enriched side-blown molten pool smelting furnace, which is characterized in that the organic waste liquid is incinerated while the oxygen-enriched side-blown molten pool smelting furnace is treating solid hazardous waste, combustible components are incinerated to generate carbon dioxide and water, and the carbon dioxide and the water enter a process link of flue gas treatment along with main flue gas of the oxygen-enriched side-blown molten pool smelting furnace; the organic waste liquid selected for disposal not only contains high-calorific-value organic waste liquid, but also can be synchronously disposed after the medium-calorific-value organic waste liquid is compatible, and oxygen-enriched air is matched in the molten pool, so that the organic waste liquid is intensively combusted, and the combustion heat release of the organic waste liquid is effectively utilized; the organic waste liquid is matched with a reducing agent reasonably, so that the temperature of a molten pool is kept in a stable range, and the smelting process is ensured to be carried out stably; meanwhile, if the organic waste liquid contains heavy metals, the heavy metals are oxidized to enter a slag phase in the smelting process of the molten pool, and common solid waste water-quenched slag is formed after water quenching, so that the organic waste liquid is recycled and harmlessly treated in the smelting process of the oxygen-enriched side-blown molten pool.
Description
Technical Field
The invention relates to the field of environmental protection, in particular to a process for cooperatively treating organic waste liquid by an oxygen-enriched side-blown molten pool smelting furnace.
Background
The organic waste liquid refers to hazardous waste of the types such as waste mineral oil or waste liquid containing waste mineral oil with different heat values, waste organic solvent, oil-water or hydrocarbon-water mixture or emulsion, and waste containing organic halide.
The organic waste liquid has complex components and great difference of heat value, contains C, H, S, N, heavy metal and other elements, and the organic waste liquid which is dangerous waste in the national hazardous waste list must be subjected to environmental protection disposal, otherwise, the organic waste liquid can cause secondary pollution to the environment.
The organic waste liquid has many kinds, large quantity and different treatment modes, and part of the organic waste liquid has high heat value, such as benzene, phenol, ether-containing waste liquid, emulsifier, organic flux, waste mineral oil and the like. At present, two modes of distillation recovery and incineration are mainly used for disposing the organic waste liquid. The main furnace types used for the incineration treatment of the organic waste liquid are as follows: liquid jet incinerators, fluidized bed incinerators, and rotary kiln incinerators.
The liquid jet incinerator has a simple structure, but is not suitable for treating organic waste liquid with large ash production amount, and the rotary incinerator adopts a rotary kiln as a rotary running incinerator of a combustion chamber, and has the defect of relatively high manufacturing cost. The fluidized bed incinerator is not suitable for incinerating high-concentration organic waste liquid containing high salt, and is easy to coke to cause fluidization failure; the content of particulate matters in the incineration flue gas is high. Incineration of organic waste liquid alone has different limitations.
There are many patents that apply combustible waste to cement kiln co-processing processes:
in patent CN 107030090 a, a hazardous waste compatibility and disposal method thereof suitable for cement kiln co-disposal are proposed. The method pretreats waste resin, waste organic liquid, waste mineral oil residue and the like through freezing, grinding, step-by-step mixing and other modes, and injects the pretreated waste resin, waste organic liquid, waste mineral oil residue and the like into a cement kiln to replace part of cement kiln fuel, wherein the component requirements of combustible hazardous waste and the influence of the incinerated residue on the cement kiln process are not mentioned.
In the research of 'flammable harmful waste as cement fuel', flammable harmful waste is proposed as cement fuel, but the calorific value of liquid flammable waste is required to be more than 5000 kcal/kg.
In patent CN 103453533 a, a pretreatment method for co-treatment of organic waste liquid with a cement kiln is proposed, which indicates that the method is suitable for treating organic waste liquid containing alcohol and ketone.
In patent CN 108411113 a, a method for regenerating hazardous waste resources is proposed. The method proposes that liquid organic hazardous waste can be treated while being treated as valuable solid hazardous waste. However, the method of using the liquid organic waste and the limitation of hazardous elements are not described.
Disclosure of Invention
The invention provides a process for cooperatively treating organic waste liquid by an oxygen-enriched side-blown molten pool smelting furnace, which realizes the recycling and harmless treatment of the organic waste liquid.
A process for cooperatively treating organic waste liquid by an oxygen-enriched side-blown molten pool smelting furnace comprises the following steps:
s1, carrying out factory inspection on the organic waste liquid, matching the qualified organic waste liquid into organic waste liquid with a medium calorific value and a high calorific value, respectively pumping the matched organic waste liquid into a homogenizing tank for homogenizing treatment, and respectively entering a storage tank for storage;
s2, directly storing the solid hazardous waste used by the oxygen-enriched side-blown molten pool smelting furnace, wherein the water content of the solid hazardous waste meets the requirement for later use, dehydrating the solid hazardous waste which does not meet the requirement by using a drier until the water content is 30-35%, and then storing for later use, wherein the standard solid hazardous waste is subjected to compatibility to ensure that the chloride ion content is less than 1.5% after the compatibility, and then the compatible solid hazardous waste is compatible with a reducing agent and a fusing agent to ensure that the addition amount of the reducing agent accounts for 25-60% of the input materials; after the flux is matched, the mass ratio of iron to silicon in the water-quenched slag is 0.5-1.0, the mass ratio of calcium to silicon is 0.4-0.8, and the well-matched raw materials are uniformly mixed by a grab crane and then enter a molten pool;
s3, feeding the organic waste liquid in the storage tank into the oxygen-enriched side-blown molten pool smelting furnace through a pipeline, a liquid supply pump, a flowmeter, a control valve and an atomizing spray gun, and spraying the high-heat organic waste liquid into the furnace through a multilayer atomizing spray gun at the position of a second layer air supply outlet of the oxygen-enriched side-blown molten pool smelting furnace; the medium-calorific-value organic waste liquid is sprayed into the furnace through a multilayer atomization spray gun at the third layer air supply outlet of the oxygen-enriched side-blown molten pool smelting furnace, the first layer air supply outlet and the second layer air supply outlet simultaneously send the polyculture air into the furnace, and the fourth layer air supply outlet sends the air;
s4, spraying the sprayed high-heat-value organic waste liquid and oxygen-enriched air provided by a spray gun into the surface of a molten pool, and preheating and dehydrating the materials just entering the furnace by virtue of the high temperature of the molten pool in the furnace and the oxygen-enriched air supply combustion; the sprayed moderate heat value organic waste liquid and air provided by the spray gun are sprayed into a furnace cavity at the upper part of a melting bath of the oxygen-enriched side-blown melting bath smelting furnace, and are quickly combusted with air matched with the spray gun in the high-temperature flue gas atmosphere of the oxygen-enriched side-blown melting bath smelting furnace, so that the temperature of the flue gas discharged by the oxygen-enriched side-blown melting bath smelting furnace is increased, and the evaporation capacity of a boiler is increased;
s5, CO is generated after organic waste liquid is combusted2、SO2、H2O, NOx, the organic waste liquid containing halogen can generate hydrogen halide; the waste liquid containing heavy metals is oxidized into slag or into smoke dust in the melting process; reducing valuable heavy metals in the solid hazardous waste at the temperature of a molten pool of 1300-1400 ℃, wherein the valuable metals copper and nickel form copper matte/nickel matte/alloy, the precious metals are enriched in the copper matte/nickel matte/alloy, and other impurity metals enter a slag phase and soot respectively; discharging molten slag mainly containing iron, silicon and calcium through a slag hole, and performing water quenching to form a glassy state water-quenched slag byproduct;
s6, arranging a high-temperature area with the temperature more than 1100 ℃ in an ascending flue of the waste heat boiler, and laying a high-temperature refractory material on the inner side of a membrane wall of the high-temperature area, so that the flue gas can be kept in the area for more than 2S, and dioxin can be promoted to be completely decomposed;
s7, arranging an SNCR (selective non-catalytic reduction) denitration system in the range of 850-1050 ℃ of the waste heat boiler to remove nitrogen oxides in the flue gas;
s8, arranging a flue gas quenching tower at the temperature of 550 ℃ of flue gas at the outlet of the waste heat boiler to inhibit secondary generation of dioxin;
s9, arranging a dry deacidification device at the inlet of the bag dust collector, blowing active carbon and slaked lime, adsorbing residual dioxin, and trapping heavy metals and acidic substances;
s10, arranging a wet dedusting and wet deacidification device at the outlet of the bag dust collector to meet the requirement of tail gas emission reaching the standard.
Further, the organic waste liquid comparison and compatibility comprises the following steps:
firstly, temporarily storing organic waste liquid to be treated entering a factory in different storage tanks for later use according to the comparison result of the PH value and the heat value on the basis of the parameters of the organic waste liquid, namely PH 5-10, the heat value of 3000kcal/kg and H2O of less than 45%;
secondly, performing compatibility experiments on the organic waste liquid of the same pre-prepared product stored in the storage tank respectively, and performing compatibility on the organic waste liquid with compatibility;
③ compatibility of medicines gives out heat value: 3000-5000 kcal/kg of medium heat value organic waste liquid; heat value: 4000 to 7000kcal/kg of high-calorific-value organic waste liquid.
Further, the flash point of the organic waste liquid after compatibility is higher than 60 ℃, and the PH value is 7-9; the mass content of Cl is 0-2%; the mass content of S is 0-2.5%; the mass content of P is 0-1%; the mass content of H2O is 0-40%.
Furthermore, substances sprayed into the multilayer atomization spray gun at the position of the second layer air supply outlet comprise high-heat-value organic waste liquid, atomization air, oxygen-mixed air and cooling air; the substances sprayed into the multilayer atomizing spray gun at the third layer of air supply outlet comprise medium-heat-value organic waste liquid, atomizing air and combustion-supporting air. The multi-layer atomizing spray gun can spray the substances simultaneously without mutual influence.
Further, the variety of the organic waste liquid comprises but is not limited to organic waste liquid produced in three categories of HW06, HW08 and HW11 in national hazardous waste records.
The invention has the advantages that: the organic waste liquid selectively treated by the process not only contains high-calorific-value organic waste liquid, but also can be synchronously treated after the medium-calorific-value organic waste liquid is compatible, the organic waste liquid is sprayed into a molten pool after the compatibility, and the oxygen-enriched air is matched, so that the combustion of the organic waste liquid is concentrated in the molten pool, and the combustion heat release of the organic waste liquid is effectively utilized; the organic waste liquid is matched with a reducing agent added into an oxygen-enriched side-blown molten pool smelting furnace reasonably, so that the temperature of the molten pool is kept in a stable range, and the stable smelting process is ensured. The flue gas after the organic waste liquid is subjected to compatibility incineration is not required to be treated independently by adding an environmental protection facility, and can be subjected to desulfurization and denitrification treatment simultaneously with the main flue gas of the oxygen-enriched side-blown molten pool smelting furnace without increasing investment. Organic waste liquid sprayed from the position of the air supply outlet of the second layer is fully combusted below the surface of the molten pool, the heat recovery efficiency released by combustion is high, and the energy consumption in the process of oxygen-enriched side-blown molten pool heat can be reduced; organic waste liquid sprayed from the third layer of air supply outlet is completely combusted in the cavity in the boiler, so that the temperature of flue gas is further increased, the enthalpy of the flue gas is increased, the heat exchange quantity with a waste heat boiler is increased, the evaporation capacity of the boiler can be increased, and the sales income of steam is increased.
The process comprises the steps of treating solid hazardous waste by using an oxygen-enriched side-blown molten pool smelting furnace, simultaneously burning organic waste liquid, generating carbon dioxide and water after burning combustible components, and allowing main flue gas of the oxygen-enriched side-blown molten pool smelting furnace to enter a flue gas treatment process link; if the organic waste liquid contains heavy metals, the heavy metals are oxidized to enter a slag phase in the smelting process of the molten pool, and common solid waste water quenching slag is formed after water quenching, so that the organic waste liquid is recycled and harmlessly treated in the smelting process of the oxygen-enriched side-blown molten pool.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an oxygen-enriched side-blown molten bath smelting furnace in the invention;
FIG. 2 is a flow chart of the process for co-treating organic waste liquid according to the present invention;
1. a molten pool; 2. a rising flue; 3. a flue gas outlet; 4. a feed inlet; 5. a tuyere; 6. a quench tower; 7. a molten metal discharge port; 8. a molten slag discharge port; 9. a first layer air supply outlet; 10. a second layer air supply outlet; 11. a third layer air supply outlet; 12. and a fourth layer air supply outlet.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification.
The invention provides an oxygen-enriched side-blown molten pool smelting furnace used in a process for cooperatively treating organic waste liquid by an oxygen-enriched side-blown molten pool smelting furnace, which comprises a molten pool 1, a waste heat boiler uptake 2, a flue gas outlet 3, a charging port 4 arranged at the top end of the molten pool 1, four layers of air ports 5 arranged on the pool wall of the molten pool 1, wherein the four layers of air ports 5 are arranged at different heights, the waste heat boiler uptake 2 is higher than the top end of the molten pool 1 and is provided with a high temperature region, the flue gas outlet 3 is positioned at the rear part of the uptake 2, the flue gas outlet 3 is provided with a quench tower 6, a molten metal discharge port 7 and a molten slag discharge port 8 are arranged at the bottom of the molten pool 1, molten metal is settled to the lowest part of the molten pool 1, a cast ingot is discharged from the side molten slag discharge port 7, and molten slag at the bottom of the molten pool is water-quenched through the slag discharge port to form water-quenched slag; in the high-temperature area of the ascending flue 2 of the waste heat boiler, high-temperature resistant castable is laid on the inner side of a water-cooled wall of the ascending flue 2, and the laying height ensures that flue gas stays in the area for more than 2S; the compatible high-heat value organic waste liquid is injected into the surface layer of the melting bath of the oxygen-enriched side-blown melting bath smelting furnace from an atomizing spray gun at the position of a second layer tuyere 10 of the oxygen-enriched side-blown melting bath smelting furnace, and the heat released by complete combustion is used for supplementing the heat required by preheating and dehydrating materials entering the furnace and supplementing heat to the melting bath; the medium heat value waste liquid is injected from an atomizing spray gun at the position of a third layer air port 11 of the oxygen-enriched side-blown molten pool smelting furnace to enter a top cavity of the oxygen-enriched side-blown molten pool smelting furnace, the heat released by combustion of the medium heat value waste liquid is used for improving the temperature of flue gas entering a boiler of the oxygen-enriched side-blown molten pool smelting furnace, the evaporation capacity of the boiler is improved, oxygen-enriched air is also fed into a first layer air supply outlet 9 and a second layer air supply outlet 10 simultaneously, air is fed into a fourth layer air supply outlet 12, and combustion-supporting air for combustion is provided for the molten pool and the incompletely-combusted organic waste liquid.
As shown in figure 2, the process for cooperatively treating the organic waste liquid by the oxygen-enriched side-blown molten pool smelting furnace comprises the following steps:
s1, comparing and matching organic waste liquid, comprising the following steps:
firstly, temporarily storing organic waste liquid to be treated in different storage tanks respectively for later use according to the comparison result of the PH value and the heat value on the basis of parameters of the organic waste liquid, such as PH 5-10, the heat value of more than 3000kcal/kg and H2O of less than 45%;
secondly, performing compatibility experiments on the organic waste liquid of the same pre-prepared product stored in the storage tank respectively, and performing compatibility on the organic waste liquid with compatibility;
③ compatibility of medicines gives out heat value: 3000-5000 kcal/kg of medium heat value organic waste liquid; heat value: 4000 to 7000kcal/kg of high-calorific-value organic waste liquid;
flash point of organic waste liquid after compatibility>The pH value is 7-9 at 60 ℃; the mass content of Cl is 0-2%; the mass content of S is 0-2.5%; the mass content of P is 0-1%; h2The mass content of O is 0-40%;
mixing the pretreated organic waste liquid with medium calorific value and high calorific value, respectively pumping the organic waste liquid into a homogenizing tank for homogenizing treatment, and respectively entering a storage tank for storage;
s2, pretreating the solid hazardous waste, directly storing the solid hazardous waste with water meeting the requirement for later use, dehydrating the solid hazardous waste without the requirement by using a dryer until the water content is 30-35%, storing the solid hazardous waste for later use, matching the solid hazardous waste meeting the requirement to ensure that the chloride ion content is less than 1.5% after matching, and matching the solid hazardous waste with a reducing agent and a fusing agent to ensure that the matching amount of the reducing agent accounts for 25-60% of the input materials; after the flux is matched, the mass ratio of iron to silicon in the water-quenched slag is 0.5-1.0, the mass ratio of calcium to silicon is 0.4-0.8, and the well-matched raw materials are uniformly mixed by a grab crane and then enter a molten pool;
s3, feeding the organic waste liquid in the storage tank into the oxygen-enriched side-blown molten pool smelting furnace through a pipeline, a liquid supply pump, a flowmeter, a control valve and an atomizing spray gun, and spraying the high-heat organic waste liquid into the furnace through a multilayer atomizing spray gun at the position of a second layer air supply outlet of the oxygen-enriched side-blown molten pool smelting furnace; spraying the medium-calorific-value organic waste liquid into the furnace through a multilayer atomizing spray gun at the third layer air supply outlet of the oxygen-enriched side-blown molten pool smelting furnace;
s4, spraying the sprayed high-heat-value organic waste liquid and oxygen-enriched air provided by a spray gun into the surface of a molten pool, and preheating and dehydrating the materials just entering the furnace by virtue of the high temperature of the molten pool in the furnace and the oxygen-enriched air supply combustion; the sprayed moderate heat value organic waste liquid and air provided by the spray gun are sprayed into a flue cavity at the top of the oxygen-enriched side-blown molten pool smelting furnace, and are quickly combusted with air matched with the spray gun in the high-temperature flue gas atmosphere of the oxygen-enriched side-blown molten pool smelting furnace, so that the temperature of the flue gas discharged by the oxygen-enriched side-blown molten pool smelting furnace is increased, and the boiler evaporation capacity is increased;
s5, CO is generated after organic waste liquid is combusted2、SO2、H2O, NOx, the organic waste liquid containing halogen can generate hydrogen halide; the waste liquid containing heavy metals is oxidized into slag or into smoke dust in the melting process; reducing valuable heavy metals in the solid hazardous waste at the temperature of a molten pool of 1300-1400 ℃, wherein the valuable metals copper and nickel form copper matte/nickel matte/alloy, the precious metals are enriched in the copper matte/nickel matte/alloy, and other impurity metals enter a slag phase and soot respectively; discharging molten slag mainly containing iron, silicon and calcium through a slag hole, and performing water quenching to form a glassy state water-quenched slag byproduct;
s6, arranging a high-temperature area with the temperature more than 1100 ℃ in an ascending flue of the waste heat boiler, and laying a high-temperature refractory material on the inner side of a membrane wall of the high-temperature area, so that the flue gas can be kept in the area for more than 2S, and dioxin can be promoted to be completely decomposed;
s7, arranging an SNCR (selective non-catalytic reduction) denitration system in the range of 850-1050 ℃ of the waste heat boiler to remove nitrogen oxides in the flue gas;
s8, arranging a flue gas quenching tower at the temperature of 550 ℃ of flue gas at the outlet of the waste heat boiler to inhibit secondary generation of dioxin;
s9, arranging a dry deacidification device at the inlet of the bag dust collector, blowing active carbon and slaked lime, adsorbing residual dioxin, and trapping heavy metals and acidic substances;
s10, arranging a wet dedusting and wet deacidification device at the outlet of the bag dust collector to meet the requirement of tail gas emission reaching the standard.
The substances sprayed by the multilayer atomizing spray gun at the position of the second layer air supply outlet comprise high-heat-value organic waste liquid, atomizing air, oxygen-mixed air and cooling air; the substances sprayed by the multilayer atomizing spray gun at the third layer air supply outlet comprise medium-heat value organic waste liquid, atomizing air and combustion-supporting air. The multi-layer atomizing spray gun can spray the substances at the same time without mutual influence; namely, the functions of blowing atomized air and oxygen mixing/combustion air in the tuyere and the like are not influenced when the organic waste liquid is sprayed.
The varieties of the organic waste liquid include but are not limited to organic waste liquid produced in HW06, HW08 and HW11 in national hazardous waste records.
Examples
The organic waste liquid used covers the following defined parameters: PH 5-10, calorific value >3000kcal/kg, H2O <45%
After the organic waste liquid enters a factory, respectively storing waste mineral oil, coal tar, waste organic flux and the like in respective storage tanks according to the comparison result of the PH value and the heat value;
performing compatibility tests on the waste mineral oil, the coal tar and the waste organic flux respectively to meet the compatibility requirement;
compatibility of the medium heat value organic waste liquid:
the compatibility of materials is as follows: the calorific value of the waste mineral oil is 3850kcal/kg, and accounts for 80 percent of the mixture ratio; the calorific value of the coal tar is 4500kcal/kg, accounting for 20%; the medium heat value organic waste liquid has the following heat value after compatibility: 4000 kcal/kg;
flash point 143 ℃, pH 7.8, Cl content 0.4 wt%, S content 1.21 wt%, P content 0.73 wt%, total C content 38.41 wt%, and H2The mass content of O is 36.6 percent.
Compatibility of high-calorific-value organic waste liquid:
the compatibility of materials is as follows: the heat value of the waste organic flux is 5350kcal/kg, which accounts for 60 percent of the mixture ratio; the calorific value of the coal tar is 4500kcal/kg, which accounts for 40%; the heat value of the high heat value waste liquid after compatibility is as follows: 5000 kcal/kg;
flash point 180 ℃, pH 7.6, Cl content 0.3 wt%, S content 1.68 wt%, P content 0.67 wt%, total C content 39.52 wt%, and H2The O content is 22.4 percent by mass.
Respectively pumping the organic waste liquid with the medium heat value and the high heat value, the compatibility of which meets the requirements, into a homogenizing tank for homogenizing treatment;
the homogenized medium-calorific-value and high-calorific-value organic waste liquid is respectively fed into an oxygen-enriched side-blown molten pool smelting furnace for treatment through a pipeline, a liquid feed pump, a flowmeter, a control valve and an atomizing spray gun;
the material compatibility of the oxygen-enriched side-blown molten pool smelting furnace: the solid hazardous waste is 12t/h, and the reducing agent is 3 t/h; the spraying amount of the high-calorific-value organic waste liquid is 600 kg/h; the spraying amount of the medium heat value organic waste liquid is 95 kg/h.
Spraying the well-mixed high-calorific-value organic waste liquid onto the surface of a molten pool through an atomizing spray gun at the position of a second layer air supply outlet of the oxygen-enriched side-blown molten pool smelting furnace; the atomizing spray gun is a multi-layer spray gun which can respectively spray high-heat-value organic waste liquid, atomizing air, combustion-supporting oxygen-mixing air and cooling air; the injected high-heat-value organic waste liquid and oxygen-enriched air provided by the spray gun are injected into the surface layer of the molten pool, the waste liquid is combusted under the action of the oxygen-enriched air, the released heat is utilized under the stirring of the molten pool, the waste liquid and the reducing agent are used for maintaining the reaction heat of the molten pool together, and the released heat after complete combustion can reduce the usage amount of the reducing agent by 10%.
Spraying the well-mixed organic waste liquid with the medium heat value into the furnace through an atomizing spray gun at the position of an air supply outlet at the third layer of the oxygen-enriched side-blown molten pool smelting furnace; the atomizing spray gun is a multilayer spray gun and can respectively spray medium-heat value organic waste liquid, atomizing air and combustion air; the sprayed moderate heat value organic waste liquid and air provided by the spray gun are sprayed into a furnace cavity at the upper part of a melting bath of the oxygen-enriched side-blown melting bath smelting furnace, the heat has no influence on the temperature of the melting bath, only the temperature of the flue gas discharged by the oxygen-enriched side-blown melting bath smelting furnace is increased, and a certain effect on the increase of the boiler evaporation capacity is achieved; the heat released by the combustion can increase the evaporation capacity of the boiler by 9%.
The first layer air supply outlet and the second layer air supply outlet simultaneously supply oxygen-enriched air, and the fourth layer air supply outlet supplies air to provide combustion-supporting air for the medium-heat value waste liquid and the incompletely combusted organic waste liquid which are sprayed by the atomizing spray guns at the positions of the molten pool and the third layer air supply outlet.
CO is generated after the organic waste liquid with medium and high heat values is combusted2、SO2、H2O, NOx, the organic waste liquid containing halogen can generate hydrogen halide; the waste liquid containing heavy metals is oxidized into slag or into smoke dust in the melting process; the total smoke amount is increased by 7.5 percent.
Reducing valuable heavy metals in the solid hazardous waste at the temperature of a molten pool of 1300-1400 ℃, wherein the valuable metals copper and nickel form copper matte/nickel matte/alloy, the precious metals are enriched in the copper matte/nickel matte/alloy, and other impurity metals enter a slag phase and soot respectively; molten slag mainly containing iron, silicon and calcium is discharged from a slag hole and water-quenched to form a glassy state water-quenched slag byproduct.
A high-temperature area with the temperature more than 1100 ℃ is arranged in an uptake flue of the waste heat boiler, and high-temperature refractory materials are laid on the inner side of a boiler membrane wall of the high-temperature area, so that the flue gas can be ensured to stay for more than 2S in the area, and the dioxin is promoted to be completely decomposed.
An SNCR denitration system is arranged in a range of 850-1050 ℃ of the waste heat boiler, ammonia water atomization spray guns are arranged on two corresponding sides of a water-cooled wall of the boiler, and the ammonia water is sprayed into a flue to remove nitrogen oxides in flue gas.
The temperature of the flue gas at the outlet of the waste heat boiler is controlled to be about 550 ℃, a flue gas quenching tower is arranged, the temperature of the flue gas is reduced to 200 ℃ in a quenching mode, and secondary generation of dioxin is restrained.
And arranging a dry deacidification device at the inlet of the bag dust collector, blowing active carbon and slaked lime, adsorbing residual dioxin, and trapping heavy metals and acidic substances.
The outlet of the bag type dust collector is provided with a wet dust removal device and a wet deacidification device, so that the requirement of up-to-standard tail gas emission is met.
The flue gas of organic waste liquid treated by the process after compatibility incineration does not need to be separately treated by adding environmental protection facilities, and can be simultaneously subjected to desulfurization and denitrification treatment with the main flue gas of the oxygen-enriched side-blown molten pool smelting furnace without increasing investment; organic waste liquid sprayed by an atomizing spray gun at the position of the air supply outlet of the second layer is fully combusted below the surface of the molten pool, the heat recovery efficiency released by combustion is high, and the energy consumption in the process of oxygen-enriched side-blown molten pool heat can be reduced; organic waste liquid sprayed by the atomizing spray gun at the third layer of air supply outlet is completely combusted in the cavity in the boiler, so that the temperature of flue gas is further increased, the enthalpy of the flue gas is increased, the heat exchange quantity with a waste heat boiler is increased, the evaporation capacity of the boiler can be increased, and the sales income of steam is increased. Realizes the recycling and harmless treatment of the organic waste liquid, wherein the subsequent SNCR denitration and flue gas dust collection and deacidification system has no difference from the traditional process.
The smoke dust generated in the process can be directly sold for external use or granulated together with a reducing agent, namely waste activated carbon, when the smoke dust is treated by an oxygen-enriched side-blown molten pool smelting furnace to be used as an ingredient for recycling, and is subjected to harmless treatment together with the waste activated carbon.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A process for cooperatively treating organic waste liquid by an oxygen-enriched side-blown molten pool smelting furnace is characterized by comprising the following steps: the process comprises the following steps:
s1, carrying out factory inspection on the organic waste liquid, matching the qualified organic waste liquid into organic waste liquid with a medium calorific value and a high calorific value, respectively pumping the matched organic waste liquid into a homogenizing tank for homogenizing treatment, and respectively entering a storage tank for storage;
s2, directly storing the solid hazardous waste used by the oxygen-enriched side-blown molten pool smelting furnace, wherein the water content of the solid hazardous waste meets the requirement for later use, dehydrating the solid hazardous waste which does not meet the requirement by using a drier until the water content is 30-35%, and then storing for later use, wherein the standard solid hazardous waste is subjected to compatibility to ensure that the chloride ion content is less than 1.5% after the compatibility, and then the compatible solid hazardous waste is compatible with a reducing agent and a fusing agent to ensure that the addition amount of the reducing agent accounts for 25-60% of the input materials; after the flux is matched, the mass ratio of iron to silicon in the water-quenched slag is 0.5-1.0, the mass ratio of calcium to silicon is 0.4-0.8, and the well-matched raw materials are uniformly mixed by a grab crane and then enter a molten pool;
s3, feeding the organic waste liquid in the storage tank into the oxygen-enriched side-blown molten pool smelting furnace through a pipeline, a liquid supply pump, a flowmeter, a control valve and an atomizing spray gun, and spraying the high-heat organic waste liquid into the furnace through a multilayer atomizing spray gun at the position of a second layer air supply outlet of the oxygen-enriched side-blown molten pool smelting furnace; the medium-calorific-value organic waste liquid is sprayed into the furnace through a multilayer atomization spray gun at the third layer air supply outlet of the oxygen-enriched side-blown molten pool smelting furnace, the first layer air supply outlet and the second layer air supply outlet simultaneously send the polyculture air into the furnace, and the fourth layer air supply outlet sends the air;
s4, spraying the sprayed high-heat-value organic waste liquid and oxygen-enriched air provided by a spray gun into the surface of a molten pool, and preheating and dehydrating the materials just entering the furnace by virtue of the high temperature of the molten pool in the furnace and the oxygen-enriched air supply combustion; the sprayed moderate heat value organic waste liquid and air provided by the spray gun are sprayed into a furnace cavity at the upper part of the oxygen-enriched side-blown molten pool smelting furnace, and are quickly combusted with air matched with the spray gun in the high-temperature flue gas atmosphere of the oxygen-enriched side-blown molten pool smelting furnace, so that the temperature of the flue gas discharged by the oxygen-enriched side-blown molten pool smelting furnace is increased, and the boiler evaporation capacity is increased;
s5, CO is generated after organic waste liquid is combusted2、SO2、H2O, NOx, the organic waste liquid containing halogen can generate hydrogen halide; the waste liquid containing heavy metals is oxidized into slag or into smoke dust in the melting process; reducing valuable heavy metals in the solid hazardous waste at the temperature of a molten pool of 1300-1400 ℃, wherein the valuable metals copper and nickel form copper matte/nickel matte/alloy, the precious metals are enriched in the copper matte/nickel matte/alloy, and other impurity metals enter a slag phase and soot respectively; discharging molten slag mainly containing iron, silicon and calcium through a slag hole, and performing water quenching to form a glassy state water-quenched slag byproduct;
s6, arranging a high-temperature area with the temperature more than 1100 ℃ in an ascending flue of the waste heat boiler, and laying a high-temperature refractory material on the inner side of a membrane wall of the high-temperature area, so that the flue gas can be kept in the area for more than 2S, and dioxin can be promoted to be completely decomposed;
s7, arranging an SNCR (selective non-catalytic reduction) denitration system in the range of 850-1050 ℃ of the waste heat boiler to remove nitrogen oxides in the flue gas;
s8, arranging a flue gas quenching tower at the temperature of 550 ℃ of flue gas at the outlet of the waste heat boiler to inhibit secondary generation of dioxin;
s9, arranging a dry deacidification device at the inlet of the bag dust collector, blowing active carbon and slaked lime, adsorbing residual dioxin, and trapping heavy metals and acidic substances;
s10, arranging a wet dedusting and wet deacidification device at the outlet of the bag dust collector to meet the requirement of tail gas emission reaching the standard.
2. The process for the cooperative treatment of the organic waste liquid by the oxygen-enriched side-blown molten pool smelting furnace according to the claim 1, is characterized in that: the comparison and compatibility of the organic waste liquid comprise the following steps:
3. The process for the cooperative treatment of the organic waste liquid by the oxygen-enriched side-blown molten pool smelting furnace according to the claim 1, is characterized in that: the flash point of the organic waste liquid after compatibility is higher than 60 ℃, and the PH value is 7-9; the mass content of Cl is 0-2%; the mass content of S is 0-2.5%; the mass content of P is 0-1%; the mass content of H2O is 0-40%.
4. The process for the cooperative treatment of the organic waste liquid by the oxygen-enriched side-blown molten pool smelting furnace according to the claim 1, is characterized in that: the substances sprayed into the multilayer atomizing spray gun at the position of the second layer air supply outlet comprise high-heat-value organic waste liquid, atomizing air, oxygen-mixed air and cooling air.
5. The process for the cooperative treatment of the organic waste liquid by the oxygen-enriched side-blown molten pool smelting furnace according to the claim 1, is characterized in that: the substances sprayed into the multilayer atomizing spray gun at the third layer of air supply outlet comprise medium-heat-value organic waste liquid, atomizing air and combustion-supporting air.
6. The process for the co-treatment of organic waste liquid by an oxygen-enriched side-blown molten pool smelting furnace according to any one of claims 1 to 5, wherein: the variety of the organic waste liquid comprises but is not limited to organic waste liquid produced in HW06, HW08 and HW11 in national hazardous waste records.
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