CN108866341A - A kind of chemical metallurgy solid waste resource recovery utilizes system and method - Google Patents
A kind of chemical metallurgy solid waste resource recovery utilizes system and method Download PDFInfo
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- CN108866341A CN108866341A CN201810792163.6A CN201810792163A CN108866341A CN 108866341 A CN108866341 A CN 108866341A CN 201810792163 A CN201810792163 A CN 201810792163A CN 108866341 A CN108866341 A CN 108866341A
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- 238000011084 recovery Methods 0.000 title claims abstract description 42
- 239000000126 substance Substances 0.000 title claims abstract description 40
- 238000005272 metallurgy Methods 0.000 title claims abstract description 26
- 239000002910 solid waste Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000002699 waste material Substances 0.000 claims abstract description 41
- 239000000463 material Substances 0.000 claims abstract description 36
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000005245 sintering Methods 0.000 claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 claims abstract description 21
- 239000000956 alloy Substances 0.000 claims abstract description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052802 copper Inorganic materials 0.000 claims abstract description 18
- 239000010949 copper Substances 0.000 claims abstract description 18
- 239000003034 coal gas Substances 0.000 claims abstract description 14
- 229910052742 iron Inorganic materials 0.000 claims abstract description 14
- 239000011651 chromium Substances 0.000 claims abstract description 13
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 11
- 238000007600 charging Methods 0.000 claims abstract description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 48
- 239000000047 product Substances 0.000 claims description 39
- 229910052759 nickel Inorganic materials 0.000 claims description 24
- 239000003638 chemical reducing agent Substances 0.000 claims description 23
- 239000010935 stainless steel Substances 0.000 claims description 20
- 229910001220 stainless steel Inorganic materials 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 18
- 239000010802 sludge Substances 0.000 claims description 14
- 229910045601 alloy Inorganic materials 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 11
- 229910018487 Ni—Cr Inorganic materials 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 238000003723 Smelting Methods 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 9
- 238000004064 recycling Methods 0.000 claims description 9
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000006477 desulfuration reaction Methods 0.000 claims description 6
- 230000023556 desulfurization Effects 0.000 claims description 6
- 238000009713 electroplating Methods 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 5
- 239000000571 coke Substances 0.000 claims description 5
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 4
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 claims description 4
- 239000003830 anthracite Substances 0.000 claims description 4
- 239000012717 electrostatic precipitator Substances 0.000 claims description 4
- 239000003500 flue dust Substances 0.000 claims description 4
- 239000003546 flue gas Substances 0.000 claims description 4
- 239000006227 byproduct Substances 0.000 claims description 3
- 239000003345 natural gas Substances 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 2
- 238000005367 electrostatic precipitation Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000005554 pickling Methods 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 241001062472 Stokellia anisodon Species 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 229910052738 indium Inorganic materials 0.000 claims 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 47
- 239000002184 metal Substances 0.000 abstract description 23
- 238000007670 refining Methods 0.000 abstract description 15
- 230000008901 benefit Effects 0.000 abstract description 10
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004364 calculation method Methods 0.000 description 7
- 238000007747 plating Methods 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 229910001120 nichrome Inorganic materials 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 229910000792 Monel Inorganic materials 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- BIJOYKCOMBZXAE-UHFFFAOYSA-N chromium iron nickel Chemical compound [Cr].[Fe].[Ni] BIJOYKCOMBZXAE-UHFFFAOYSA-N 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000005261 decarburization Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- VVTSZOCINPYFDP-UHFFFAOYSA-N [O].[Ar] Chemical compound [O].[Ar] VVTSZOCINPYFDP-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011363 dried mixture Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
-
- 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
- C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
- C22B4/06—Alloys
-
- 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)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of chemical metallurgy solid waste resource recovery utilize system and method comprising be set in sequence and dryer interconnected, depiler, proportioning machine, batch mixer, sintering machine, hermetic reclaim electric furnace, modulation electric furnace, AOD refining furnace.The beneficial effects are mainly reflected as follows following aspect：1, hermetic reclaim electric furnace coal-gas recovering utilizes, and material hot charging enters furnace, and molten iron heat converts refining, plant machinery and high degree of automation, and waste harmless treatment is thorough, and single machine production capacity is big, and production comprehensive energy consumption is low, is suitble to industrialized production；2, production product is that metallic elements alloy material, the product qualities such as nickeliferous, chromium, copper can be adjusted control according to relevant criterion and customer requirement, can produce different size quality product, and products application is wide, and added value is high；3, waste valuable metal element recovery rate is high, and resource is fully used, and economic benefit and social benefit are good.
Description
Technical field
The invention belongs to environmental project improvement and comprehensive utilization of resources field more particularly to enterprises of producing stainless steel and electricity
The chemical metallurgy solid of the valuable metals element waste such as the nickeliferous of generation, copper, chromium, zinc during the industry productions such as plating, chemical industry
Utilization of waste as resource system and method.
Background technique
Environment is the basis that human society is depended on for existence, and in the past 10 years, as the hair of resource is opened, China's economy has obtained fast
Speed development, meanwhile, natural environment is also serious by the pollution of biggish destruction, especially industrial solid castoff to environment
Constrain economic sustainable development.
In recent years, country proposes the target of innoxious, minimizing, recycling to industrial solid castoff, in state's housekeeping
Under the driving of plan, the recycling of " storage-based " to " utility as core " has been realized substantially to large industrial solid castoff at present
Utilize transformation.
The various sludge that are generated during the industry productions such as stainless steel, plating, nonferrous smelting, petrochemical industry, dedusting ash,
The wastes such as dead catalyst have been put into National Hazard waste register due to detection device for multi metallic elements such as nickeliferous, copper, chromium, zinc,
Larger harm caused to environment, and this part waste content of beary metal is high, utility value is big, therefore using science, rationally,
Advanced equipment and technology realize innoxious, minimizing, resource utilization to this part waste, can obtain improvement ring
The effect in border, and the Green Sustainable purpose of " economize on resources, turn waste into wealth " is realized, to the resource of this part waste
Change utilize, although having achieved certain effect at present, there are still equipment it is unprofessional, do not match especially nickel, copper, chromium metal
The disadvantages of element recovery efficiency is relatively low, and product quality (phosphorous equal harmful elements are exceeded) is unstable.
Fujian Lv Neng resource regeneration Science and Technology Ltd. is in notification number:It is provided in the national inventing patent of CN104561525B
A kind of to be related to the resource utilization method of heavy metal sewage sludge, this method closes stainless steel sludge, electroplating sludge, chromium mud, nickel chromium triangle
Pelletizing in marble forming machine is added after gold dedusting ash produced during the preparation process, iron scale mixing, then after being dried, being dried
Mixture in coke, lime stone is added in revolution roasting in kilns or fritted sand, add melting in mineral hot furnace and be worth nickel chromium iron
Alloy, by-product clinker are used to prepare cement additive.In this method embodiment：Metallic element rate of recovery chromium 90%, iron 80%,
Other metals (nickel, copper) 70%, 460,000 tons of annual amount for the treatment of, wherein 80,000 tons of oxide skin, 380,000 tons of danger wastes.
However, the disadvantage of this method is that：
1, the metallic element rate of recovery is relatively low, especially nickel, copper the rate of recovery there was only 70%, the wasting of resources is big；
2, due to electroplating sludge (cupric, nickel) and stainless steel sludge mixed processing, nichrome product, copper coin are produced
After element enters alloy, nichrome product requirement is not met, copper cannot valuate, copper is caused not obtain reasonable benefit
With added value of product is low；
3, the traditional rotary kiln of this method simply utilization and mineral hot furnace processing waste, and the calcining granularity of rotary kiln baking
Small, equipment poor air permeability causes mineral hot furnace melting to cannot achieve totally-enclosed operation, can not recycle coal gas, feed stock for blast furnace is not
It is able to achieve hot charging and enters furnace, heat loss is big in smelting process, and product energy consumption is high；
4, since waste is different from ore, the harmful substances such as universal sulfur-bearing, phosphorus are higher, especially electroplating sludge and stainless
The outer molten iron of the non-system configuration desulfurization in rotary kiln baking and mineral hot furnace fusion process of steel sludge, dephosphorization facility and furnace is modulated and is taken off
Sulphur, dephosphorization refines facility, therefore, it is impossible to ensure the nickel of production, the quality of ferrochrome product reaches relevant criterion and client wants
It asks.
Summary of the invention
The case where for the prior art, the purpose of the present invention is to provide a kind of Cr according to waste+6Ion and P, S member
The wastes metallurgy characteristics such as cellulose content is exceeded, and material resistivity is small, reduction reaction process burner hearth air pressure is big, design are specially directed to
Property chemical metallurgy solid waste resource recovery utilize system, meanwhile, according to the variety classes of waste, matched using new technique
Square technology makes the metallic element in waste, especially nickel, the chromium rate of recovery be greatly improved, and nickel, chromium recovery ratio are big
In 92% or more, product passes through refining treatment, can effectively remove the impurity such as P, S, C, smelting furnace by relevant criterion and customer requirement
Slag does construction material use, and recycling electric furnace uses totally-enclosed smelting operation, the coal-gas recovering benefit generated after the purified processing of flue gas
It is preheated for waste harmlessness disposing prereduction sintering and furnace roof material, realizes that material hot charging enters furnace, alloy product refining is real
Existing molten iron heat converts refining, the thermal efficiency and electrical efficiency of whole system electric furnace greatly improved, comprehensive energy consumption is compared with prior art
It relatively can save energy 30% or more, production process realizes mechanization and automation control.
In order to achieve the above technical purposes, the technical solution adopted by the present invention is：
A kind of chemical metallurgy solid waste resource recovery utilizes system comprising is set in sequence and drying interconnected
Machine, depiler, proportioning machine, batch mixer, sintering machine, hermetic reclaim electric furnace, modulation electric furnace and AOD furnace.
Further, the hermetic reclaim electric furnace has exhanst gas outlet, and gas cleaning is sequentially connected on exhanst gas outlet
Device, coal-gas recovering device and deduster.
Further, the sintering machine has exhanst gas outlet, and is sequentially connected with electrostatic precipitator on exhanst gas outlet and takes off
Sulphur, denitrification apparatus.
Preferably, the coal-gas recovering device have coal gas air accumulator, reservoir outlet respectively with hermetic reclaim electric furnace
Heater top is connected with sintering machine, and the coal gas recycled replaces natural gas to heat and be sintered for hermetic reclaim electric furnace furnace roof material
Machine carries out harmlessness disposing to waste and sintering uses.
A kind of chemical metallurgy solid waste resource recovery utilizes the production method of system comprising following steps：
(1) the chemical metallurgy solid waste that moisture content is more than 25% is added in dryer with 150~350 DEG C of drying
Temperature carries out drying and processing to water content less than 25%；
(2) the chemical metallurgy solid waste after drying is carried out being classified as nickel chromium triangle material, ambrose alloy material and is contained by depiler
Nickel material is simultaneously individually stored；
(3) sorted chemical metallurgy solid waste is mixed and added into coke powder or anthracite in proportion using proportioning machine
Be uniformly mixed and mixture is made；
(4) the waste material mixed is sent into sintering machine and carries out harmlessness disposing and prereduction sintering, sintering machine
Generated flue dust is sequentially through electrostatic precipitation, after flue gas desulfurization, denitration process, qualified discharge, then by sintered material into
Row heat is broken to be processed into specified specification, is re-fed into electric furnace proportioning machine, and the raw powder of heat bankruptcy is re-fed into sintering machine to be burnt again
Knot；
(5) the broken sintered material for being processed into specified specification of heat is configured in proportion with carbon silicon combined reducing agent and auxiliary material
Afterwards, it is sent into hermetic reclaim electric furnace top heater and carries out being preheated to 500~800 DEG C, then extremely by heat preservation expects pipe blanking
It is smelted in hermetic reclaim electric stove hearth；
(6) it after the hermetic reclaim electric furnace high-temperature of step (5) is smelted, produces to obtain crude metal alloy；
(7) when the crude alloy product produced through hermetic reclaim electric furnace needs to refine, then by crude metal alloy molten iron
Direct heat is blended into modulation electric furnace or AOD furnace is refined, thus the metal alloy product after being refined.
Further, chemical metallurgy solid waste described in step (1) include Stainless Steel Plant's dedusting ash, with pickling sludge,
At least one of oxide skin, electroplate factory's chromium mud, electroplating sludge, copper-bearing waste material, petrochemical industry dead catalyst containing nickel.
Further, the component of mixture and content include at least its in nickel chromium triangle material, ambrose alloy material and nickeliferous material in step (3)
Middle one kind, and its mixed proportion is：Coke powder：Nickel chromium triangle material=8%~15%；Coke powder：Ambrose alloy material=9%~12%；Coke powder：It is nickeliferous
Material=7%~10%；In addition, coke powder or the fixed carbon content of anthracite are 70%~80%.
Further, the sintering temperature of sintering machine is 900~1250 DEG C in step (4), and sintering flue dust uses electrostatic precipitator
Dust returns to batch bin recycling, desulfurization product BaSO after carrying out purified treatment with desulphurization and denitration device4Product.
Further, sintered material and carbon silicon combined reducing agent proportion are in step (5)：Carbon silicon combined reducing agent：Nickel chromium triangle material
Weight=10%~15%；Carbon silicon combined reducing agent：Ambrose alloy material weight=8%~12%, carbon silicon combined reducing agent：Nickeliferous material weight
Amount=5%~10%, wherein the component and mixed proportion of carbon silicon combined reducing agent are nut coke：Siliceous reducer=4~6：6~
4, fixation carbon content >=75% of nut coke, simple substance silicone content >=45% in siliceous reducer is industry in the siliceous reducer
The by-product generated in silicon production, wherein Antaciron substandard products also can be used or silicon carbide substandard products replace siliceous reducer.
Further, the pyrolytic semlting temperature control of step (6) hermetic reclaim electric furnace is at 1400~1650 DEG C, smelting time 4
~6 hours/furnace.
The present invention by adopting the above technical scheme, if be used only in nickel chromium triangle material dedusting ash of stainless steel and stainless steel oxidation skin or its
Nickeliferous, the Cr materials of his phosphorus≤0.05%, the molten iron after smelting, only need to according to molten iron composition in furnace external modulation electric furnace according to not
Rust steel requires to modulate composition, is re-fed into AOD furnace and carries out decarburization, the refining such as deoxidation can directly prepare stainless steel product.
It should be noted that if can not have to when enterprises of producing stainless steel handles self-produced waste using the technology of the present invention
Invest external refining equipment, the molten iron of hermetic reclaim electric furnace can direct hot charging convert into steel-smelting electric furnace or direct heat into AOD furnace or phase
It closes mating refining equipment and prepares stainless steel product, reach energy-saving and emission-reduction, the purpose of circular economy.
Each processing step of the invention realizes that (use) mechanization and automatic control, video monitoring and data acquisition are online
Network and record full-computerized management can be achieved.
The beneficial effects are mainly reflected as follows following aspect：
1, waste harmless treatment is thorough, and environmental pollution improvement is thorough, and hermetic reclaim electric furnace coal gas sufficiently recycles,
Material hot charging enters furnace, and liquid iron charging refining, comprehensive energy consumption is low, and plant machinery and high degree of automation, system single machine production capacity is big,
It is suitble to industrialized production；
2, production product quality can be adjusted control according to relevant criterion and customer requirement, and it is excellent can to produce different size
Matter product, products application is wide, and added value is high；
3, waste valuable metal element recovery rate is high, wherein the nickel metallic element rate of recovery >=94%, and copper metal element returns
Yield >=94%, the chromium metallic element rate of recovery >=92%, ferrous metal element recovery rate >=90%.Waste material obtains abundant benefit
With economic benefit and social benefit are good.
Detailed description of the invention
The present invention is further elaborated with reference to the accompanying drawings and detailed description：
Fig. 1 is the brief process flow chart of the embodiment of the present invention 1；
Fig. 2 is the brief process flow chart of the embodiment of the present invention 2；
Fig. 3 is the brief process flow chart of the embodiment of the present invention 3.
Specific embodiment
Below with reference to specific example, the present invention is further explained, but the present embodiment cannot be to enforceable range of the invention
Form any restriction.
Embodiment 1
The resource utilization of stainless steel waste (nickel, chromium material)
Stainless steel waste chemical composition see the table below 1 and show
1 stainless steel waste chemical component list of table
According to 1 waste chemical component content of table, the present embodiment is to produce processing waste quantity as 10000 tons of butt
Specific formula and associated metal number of elements (metal ton) calculating see the table below shown in 2：
Table 2 discards composition formula and metallic element number amount computational chart
The present embodiment process flow and concrete operation step are as shown in Figure 1.
Wherein, matched auxiliary material includes slag former in the PLC ingredient of step 4 shown in Fig. 1, and foundry return (washed metal) is secondary
Slag etc., combined reducing agent are carbonaceous reducing agent and siliceous reducer, Si:C=3~4:6~8；
The sintering temperature of step 3 is 900 DEG C~1250 DEG C；
Furnace roof charge preheating is to replace combustion of natural gas to preheat furnace charge to 500 DEG C using coal gas in preheater in step 5
~800 DEG C of hot chargings enter is smelted in hermetic reclaim electric stove hearth；
Step 6 hermetic reclaim electric furnace smelting temperature is 1200 DEG C~1650 DEG C, using full-computerized video monitoring and power from
Dynamic control；
Nickel chromium iron crystal refining produces stainless steel product requirement according to client in step 7, using adjustment electric furnace and A0D argon oxygen essence
Furnace carries out refinings and the product composition allocation processings such as dephosphorization, decarburization, deoxidation to molten iron；
It is recycled in step 8 as belonged to Stainless Steel Plant's own resource, then the step forms sediment without casting and directly converts molten iron heat
Stainless steel product is produced to stainless steel workshop, realizes that stainless steel produces energy-saving and environmental protection, resource circulation utilization, green can be held
The purpose of supervention exhibition.
The present embodiment nichrome (molten iron) ingot chemical composition analysis and the calculating of the metallic element rate of recovery see the table below 3
3 nichrome product composition of table and metallic element rate of recovery computational chart
Note：Metallic element rate of recovery calculation formula is in computational chart：
Y indicates the metallic element rate of recovery in formula；
a1Indicate raw metal element percentage composition；
a2Indicate alloy product metallic element percentage composition；
w1It indicates raw material weight (dry blowing)；
w2It indicates alloy product weight (dry blowing).
Embodiment 2
Electric plating sludge resource utilizes
The present embodiment plating dirt chemical component and recipe calculation see the table below 4
4 electroplating sludge chemical component of table and recipe calculation table
Electric plating sludge resource utilizes processing step process as shown in Figure 2.
Technological operation step 1-7 is same as Example 1 in Fig. 2.
For monel product, other elementary compositions need to be increased if you need to refine according to the requirement of client, step 7 can be continued
Related refining operation.
The present embodiment monel chemical composition analysis and the calculating of the metallic element rate of recovery see the table below 5 and shows
5 monel chemical component of table and metallic element rate of recovery computational chart
Note：Metallic element rate of recovery calculation formula is in computational chart：
Y indicates the metallic element rate of recovery in formula；
a1Indicate raw metal element percentage composition；
a2Indicate alloy product metallic element percentage composition；
W1Indicate raw material dry blowing weight；
W2Indicate alloy product weight.
Embodiment 3
Nickel-containing wastes resource utilization
Nickel-containing wastes described in the present embodiment refer mainly to the dead catalyst containing nickel during the industry productions such as petrochemical industry,
Chemistry at and recipe calculation see the table below shown in 6
6 dead catalyst containing nickel chemical component of table and recipe calculation table
The present embodiment processing step process is as shown in Figure 3.
The operation of step 1- step 6 is same as Example 1 in diagram in the present embodiment, and step 7 refining is in modulation electric furnace
Dephosphorization and Decarburising and refining are carried out respectively in AOD hydrogen-oxygen refining furnace, prepare low-carbon, low-phosphorous high-quality dilval product.
The present embodiment dilval chemical component and the calculating of the metallic element rate of recovery see the table below 7 and shows
7 dilval chemical component of table and metallic element rate of recovery computational chart
Note：Metallic element rate of recovery calculation formula is in computational chart：
Y in formula --- the metallic element rate of recovery；
a1--- raw metal element percentage composition；
a2--- alloy product metallic element percentage composition；
w1--- raw material dry blowing weight；
w2--- alloy product weight.
Contrast on effect：
According in the patent text of notification number CN104561225B, 460000 tons of waste of table processing in 1 year of embodiment 1 are counted
It calculates, it is as follows to carry out corresponding accounting by metallic element rate of recovery effect acquired by the method for the present invention：
(1) according to nickel content (metal in 1 waste of table of embodiment 1 in the patent text of notification number CN104561225B
Ton)=120000 × 0.8%+30000 × 0.4%+50000 × 1.0%+30000 × 0.40%+30000 × 0.50%+
120000 × 1.00%+80000 × 2.80%=4210 tons, the prior art recycles nickel metal=4210 ton × 70%=
2947 tons；
(2) according to the 1 waste copper content of table (metal ton) of embodiment 1 in the patent text of notification number CN104561225B
=120000 × 1.8%+30000 × 0.50%+50000 × 0.10%+30000 × 0.05%+30000 × 0.50%=2525
Ton, prior art copper because being mixed into nickel, evanohm product cannot valuate, be not utilized；
(3) available nickel metal=4210 ton × 95%3999.5 ton of the present invention, compared with prior art can be more times
It receives and utilizes -2947 tons of nickel metal=3999.5 ton=1052.5 ton (metal ton)；(rate of recovery 0.95 of nickel of the present invention)
(4) present invention can utilize copper metal=2525 × 94%=2373.5 tons (metal ton) (copper of the present invention time of recycling
Yield 0.94)
For nickel market unit price based on 103000.00 yuan/metal ton, copper market unit price presses 51000.00 yuan/metal ton at present；
The present invention compared with prior art, disposes 460000 tons of equivalent amount equal quality waste year, increase warp more
Ji benefit (more recycling) is：Ten thousand yuan of 1052.5 × 103000=10840.75 of nickel；Copper utilizes 2373.5 × 51000=12104.9
Wan Yuan；Two total can to increase by ten thousand yuan/year of income=10840.75+12104.9=22945.65 more.
In conclusion the present invention is compared with prior art, equivalent amount and quality wastes, year can increase economic benefit
2.2946 hundred million yuan (coal gas and heat recovery, the generations such as comprehensive energy consumption is low, added value of product is high benefit be temporarily not included in), and
Environmental improvement is thorough, and mechanization and high degree of automation, system single machine production capacity is big, and excellent its is suitble to large-size stainless steel enterprise to self-produced
Waste carries out recycling and reusing.
The above is the embodiment of the present invention, for the ordinary skill in the art, introduction according to the present invention,
Without departing from the principles and spirit of the present invention all equivalent changes made according to scope of the present invention patent, modification,
Replacement and variant is all covered by the present invention.
Claims (10)
1. a kind of chemical metallurgy solid waste resource recovery utilizes system, it is characterised in that：It includes being set in sequence and mutually interconnecting
Dryer, depiler, proportioning machine, batch mixer, sintering machine, hermetic reclaim electric furnace, modulation electric furnace and the AOD furnace connect.
2. a kind of chemical metallurgy solid waste resource recovery according to claim 1 utilizes system, it is characterised in that：It is described
Hermetic reclaim electric furnace there is exhanst gas outlet, and flue gas cleaner, deduster, coal-gas recovering are sequentially connected on exhanst gas outlet
Device.
3. a kind of chemical metallurgy solid waste resource recovery according to claim 1 utilizes system, it is characterised in that：It is described
Sintering machine there is exhanst gas outlet, and electrostatic precipitator and desulphurization and denitration device are sequentially connected on exhanst gas outlet.
4. a kind of chemical metallurgy solid waste resource recovery according to claim 2 utilizes system, it is characterised in that：It is described
Coal-gas recovering device have coal-gas recovering air accumulator, air accumulator respectively with hermetic reclaim electric furnace furnace roof material heater and sintering machine
Igniter connection, the coal gas of recycling replace natural gas for the heating of hermetic reclaim electric furnace furnace roof material and sintering machine to waste into
Row harmlessness disposing and sintering use.
5. the producer of system is utilized to a kind of chemical metallurgy solid waste resource recovery described in one of 4 according to claim 1
Method, it is characterised in that：It includes the following steps：
（1）The chemical metallurgy solid waste that moisture content is more than 25% is added in dryer with 150~350 DEG C of drying temperature
Drying and processing is carried out to water content less than 25%；
（2）The chemical metallurgy solid waste after drying is carried out by depiler to be classified as nickel chromium triangle material, ambrose alloy material and nickeliferous material
And it individually stores；
（3）Using proportioning machine sorted chemical metallurgy solid waste is mixed and added into coke powder in proportion or anthracite carries out
It is uniformly mixed and mixture is made；
（4）The waste material mixed is sent into progress harmlessness disposing and prereduction sintering, sintering machine in sintering machine to be produced
Sequentially through electrostatic precipitation, then qualified discharge after flue gas desulfurization, denitration process burns harmlessness disposing and prereduction raw flue dust
Material after knot carries out heat and is broken into specified specification, is re-fed into electric furnace proportioning machine, and the raw powder of heat bankruptcy is re-fed into sintering machine
In be sintered again；
（5）The sintered material that heat is broken into specified specification is matched in proportion with carbon silicon combined reducing agent and auxiliary material and is postponed, is sent into
It carries out being preheated to 500~800 DEG C in hermetic reclaim electric furnace top heater, then by heat preservation expects pipe blanking to closed time
It receives and is smelted in the burner hearth of electric furnace；
（6）Through step（5）Hermetic reclaim electric furnace high-temperature smelt after, produce to obtain crude metal alloy；
（7）When the crude alloy product produced through hermetic reclaim electric furnace needs to refine, then its crude alloy liquid iron charging is entered
Modulation electric furnace or AOD furnace are refined, thus the metal alloy product after being refined.
6. a kind of chemical metallurgy solid waste resource recovery according to claim 5 utilizes the production method of system, special
Sign is：Step（1）The chemical metallurgy solid waste include Stainless Steel Plant's dedusting ash, with pickling sludge, oxide skin,
At least one of electroplate factory's chromium mud, electroplating sludge, copper-bearing waste material, petrochemical industry dead catalyst containing nickel.
7. a kind of chemical metallurgy solid waste resource recovery according to claim 5 utilizes the production method of system, special
Sign is：Step（3）The component and content of middle mixture include at least the one of which in nickel chromium triangle material, ambrose alloy material and nickeliferous material,
And its mixed proportion is：Coke powder：Nickel chromium triangle material=8%~15%；Coke powder：Ambrose alloy material=9%~12%；Coke powder：Nickeliferous material=7%~10%；Separately
Outside, coke powder or the fixed carbon content of anthracite are 70%~80%.
8. a kind of chemical metallurgy solid waste resource recovery according to claim 5 utilizes the production method of system, special
Sign is：Step（4）The sintering temperature of middle sintering machine is 900~1250 DEG C, and sintering flue dust is matched desulfurization using electrostatic precipitator, taken off
Dust returns to batch bin recycling, desulfurization product BaSO after nitre device carries out purified treatment4Product.
9. a kind of chemical metallurgy solid waste resource recovery according to claim 5 utilizes the production method of system, special
Sign is：Step（5）Middle sintered material is matched with carbon silicon combined reducing agent：Carbon silicon combined reducing agent：Nickel chromium triangle material weight=10%
~15%；Carbon silicon combined reducing agent：Ambrose alloy material weight=8%~12%, carbon silicon combined reducing agent：Nickeliferous material weight=5%~10%,
In, the component and mixed proportion of carbon silicon combined reducing agent are nut coke：Siliceous reducer=4~6：6~4, the fixation carbon content of nut coke
>=75%, simple substance silicone content >=45% in siliceous reducer, the by-product generated in industrial silicon production in the siliceous reducer,
Wherein, Antaciron substandard products also can be used or silicon carbide substandard products replace siliceous reducer.
10. a kind of chemical metallurgy solid waste resource recovery according to claim 5 utilizes the production method of system, special
Sign is：Step（6）The pyrolytic semlting temperature control of hermetic reclaim electric furnace at 1400~1650 DEG C, smelting time 4~6 hours/
Furnace.
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| CN201810792163.6A CN108866341A (en) | 2018-07-18 | 2018-07-18 | A kind of chemical metallurgy solid waste resource recovery utilizes system and method |
| CN201811592508.XA CN109468466B (en) | 2018-07-18 | 2018-12-25 | Metallurgical chemical solid waste recycling system and method thereof |
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|---|---|---|---|
| CN201810792163.6A CN108866341A (en) | 2018-07-18 | 2018-07-18 | A kind of chemical metallurgy solid waste resource recovery utilizes system and method |
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| CN201811592508.XA Active CN109468466B (en) | 2018-07-18 | 2018-12-25 | Metallurgical chemical solid waste recycling system and method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110317951A (en) * | 2019-07-16 | 2019-10-11 | 嘉善助远再生资源回收有限公司 | A method of nichrome is produced using dedusting ash of stainless steel and pickling sludge |
| CN111686634A (en) * | 2020-07-20 | 2020-09-22 | 湖北中环信环保科技有限公司 | Batching system of sintering material of copper-nickel-containing solid waste |
| CN111996362A (en) * | 2020-08-26 | 2020-11-27 | 甘肃高能中色环保科技有限公司 | Method for producing nickel block material from nickel-containing solid hazardous waste material |
| CN112941319A (en) * | 2021-01-15 | 2021-06-11 | 龙岩山青冶金科技有限公司 | System and method for cooperatively treating stainless steel dust and sludge by ferronickel smelting electric furnace |
Families Citing this family (4)
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| CN110343878B (en) * | 2019-07-22 | 2021-03-19 | 广西冶金研究院有限公司 | Energy-saving and environment-friendly production method of nickel-iron alloy |
| CN110343854A (en) * | 2019-08-13 | 2019-10-18 | 嘉善助远再生资源回收有限公司 | A method of Calmalloy is produced using cupric, nickel, iron electroplating sludge |
| CN111992729B (en) * | 2020-08-26 | 2023-02-28 | 甘肃高能中色环保科技有限公司 | Method for producing nickel-copper alloy particles from low-grade nickel-copper solid hazardous waste material |
| CN111996371A (en) * | 2020-08-27 | 2020-11-27 | 中冶东方工程技术有限公司 | Resource utilization production process for stainless steel solid waste |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104561525B (en) * | 2015-01-30 | 2017-08-25 | 福建绿能资源再生科技有限公司 | A kind of Resource comprehensive utilization method for relating to heavy metal sewage sludge |
| CN106311718B (en) * | 2016-04-18 | 2018-09-25 | 李大伦 | A kind of harmlessness disposing and resource utilization method of heavy metal waste |
-
2018
- 2018-07-18 CN CN201810792163.6A patent/CN108866341A/en not_active Withdrawn
- 2018-12-25 CN CN201811592508.XA patent/CN109468466B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110317951A (en) * | 2019-07-16 | 2019-10-11 | 嘉善助远再生资源回收有限公司 | A method of nichrome is produced using dedusting ash of stainless steel and pickling sludge |
| CN111686634A (en) * | 2020-07-20 | 2020-09-22 | 湖北中环信环保科技有限公司 | Batching system of sintering material of copper-nickel-containing solid waste |
| CN111996362A (en) * | 2020-08-26 | 2020-11-27 | 甘肃高能中色环保科技有限公司 | Method for producing nickel block material from nickel-containing solid hazardous waste material |
| CN112941319A (en) * | 2021-01-15 | 2021-06-11 | 龙岩山青冶金科技有限公司 | System and method for cooperatively treating stainless steel dust and sludge by ferronickel smelting electric furnace |
Also Published As
| Publication number | Publication date |
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| CN109468466A (en) | 2019-03-15 |
| CN109468466B (en) | 2023-10-31 |
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Application publication date: 20181123 |