CN106399699B - A kind of handling process of copper-contained sludge - Google Patents

A kind of handling process of copper-contained sludge Download PDF

Info

Publication number
CN106399699B
CN106399699B CN201611178461.3A CN201611178461A CN106399699B CN 106399699 B CN106399699 B CN 106399699B CN 201611178461 A CN201611178461 A CN 201611178461A CN 106399699 B CN106399699 B CN 106399699B
Authority
CN
China
Prior art keywords
copper
contained sludge
bearing
sludge
sulfur
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201611178461.3A
Other languages
Chinese (zh)
Other versions
CN106399699A (en
Inventor
罗忠平
杨文�
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Rich Metallurgical Group Co Ltd
Original Assignee
Zhejiang Rich Metallurgical Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Rich Metallurgical Group Co Ltd filed Critical Zhejiang Rich Metallurgical Group Co Ltd
Priority to CN201611178461.3A priority Critical patent/CN106399699B/en
Publication of CN106399699A publication Critical patent/CN106399699A/en
Application granted granted Critical
Publication of CN106399699B publication Critical patent/CN106399699B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • C22B1/005—Preliminary treatment of scrap
    • 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
    • C22B15/00—Obtaining copper
    • C22B15/0002—Preliminary treatment
    • 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
    • C22B15/00—Obtaining copper
    • C22B15/0026—Pyrometallurgy
    • C22B15/0028—Smelting or converting
    • C22B15/0052—Reduction smelting or converting
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

A kind of handling process of copper-contained sludge provided by the invention, ore deposit Copper making technique is combined into cooperative disposal with the pyrogenic process disposing technique of copper-contained sludge, including the copper-contained sludge of different cultivars is classified by the standard of sulfur-bearing >=2% and sulfur-bearing ＜ 2%, then different modes is respectively adopted and is handled；The technique can not only carry out most sulphur in raw material in recycling production sulfuric acid, effectively mitigate flue gas SO2Pollution to environment, moreover it is possible to significantly improve the rate of recovery of the valuable metals such as copper, reduce energy resource consumption.

Description

A kind of handling process of copper-contained sludge
Technical field
The present invention relates to environmental protection and recycling field, particularly a kind of handling process of copper-contained sludge.
Background technology
Copper-contained sludge occurs mainly with surface treatment, heat treatment process, electronic components fabrication, the plating of metal key industry And caused sludge in the industry wastewater treatment process such as basic chemical feedstock manufacture, these sludge for containing heavy metal have easily product Tired, unstable, the features such as being easy to run off, if do not dealt carefully with, serious environmental pollution can be caused.
Although these copper-contained sludges belong to hazardous industry solid waste, sludge after drying process cupric grade 3% Between~18%, wherein also containing the dilute expensive and non-ferrous metal such as nickel, zinc, selenium, tellurium, palladium, gold, silver (copper-contained sludge primary chemical into Point it is shown in Table 1), and the mining grade of copper mine only has more than 0.4% on the earth, therefore, is exhausted and resource from copper resource is slowed down From the point of view of recycling, more metal hazardous industry solid wastes such as cupric belong to the metals resources that can be developed.
The copper-contained sludge main chemical compositions of table 1
Element Cu S Fe SiO2 CaO Na Zn Ni It is other
Content (%) 3~18 0.5~8.5 22 24 8 2 2.5 0.5 ~
More for the disposing technique of copper-contained sludge, conventional method of disposal mainly has security landfill, wet method disposal and fire Three kinds of disposing techniques such as method disposal, wherein：Security landfill method not only land occupation, causes the waste of resource, returns offspring and leave The hidden danger of huge environmental pollution；Wet method disposing technique needs to dispose using different wet methods for different dangerous solid waste kinds Flow, it is difficult to accomplish to concentrate the cooperative disposal of " high-volume, multi items ", and waste water, waste residue still fall within danger caused by production process Dangerous waste, do not reach " pollution treatment do not produce dirty, profit it is useless do not produce it is useless " innoxious effect；Pyrogenic process disposing technique is had ready conditions different product The copper-contained sludge of kind, which is concentrated, carries out high-volume disposal, and the benefit short with harmless clinker, flow is produced, and therefore, pyrogenic process is disposed Technique is the main flow disposing technique for more metal hazardous industry solid wastes such as cuprics.
At present, pyrogenic process disposing technique is all that copper-contained sludge is passed through into the disposal streams such as drying-brickmaking-reduction melting-refining Journey produces copper anode plate (see figure 1).Wherein：Baking operation is mainly by the moisture content of more metal sludges such as cupric from 75% Left and right is dried to 40% or so by rotary kiln or sintering machine, and drying course natural gas or coal make fuel；In order to ensure melting In-furnace temperature, increase the gas permeability of furnace charge, improve its specific capacity, must be by after the more metal sludge supplying lime stones of cupric after drying It is sent to and the brick material with some strength and granularity, the furnace charge as smelting furnace is pressed into special brickmaking machine；It will make The material of brick and quartz flux and the reduction material such as coking coal be sent into after dispensing in smelting furnace and carry out reduction melting, in high temperature action Down by a series of reduction reactions, generation sulfur-bearing is higher and is enriched with dilute expensive and non-ferrous metal the secondary blister coppers such as gold, silver, palladium, nickel, production The secondary blister copper cupric 82% or so gone out, the caused FeO and SiO in furnace charge in reduction process2And the slag making such as CaO material forms stove Slag, clinker cupric 0.6% or so, copper and clinker pass through clarification due to not being mutually dissolved and proportion differs larger in smelting furnace Discharged respectively after separation；Then by the secondary blister copper of output cupric 82% or so and the thick composition brass of high-grade of outsourcing cupric more than 92% It is added to after dispensing after melting in anode furnace and carries out pyro-refining, it is dilute expensive finally obtains enrichment gold, silver, selenium, tellurium, palladium, nickel etc. And the copper anode plate of non-ferrous metal.
Although existing pyrogenic process disposing technique has to concentrate different dangerous solid waste kinds carries out high-volume disposal, produces harmless The advantages of clinker, short flow, but there is also following 3 problems：
1) flue gas SO2Discharge capacity is high：S content is typically 0.5 in the more metal hazardous industry solid wastes of cupric of different cultivars Between~8.5%, these sulphur can be with SO in reduction melting and pyro-refining course of reaction2Form emit, due to cigarette Gas SO2Concentration less than 3%, relieving haperacidity can not be carried out, though after being handled by flue gas desulfurization can qualified discharge, total emission volumn is still Very high, the sulphur in raw material not only cannot function as resource use, and pollution is also caused to environment.
2) high energy consumption：Copper-contained sludge will consume substantial amounts of fuel, energy during drying, reduction melting and pyro-refining Consumption is very high.
3) recovery rate of valuable metals is low：The clinker cupric of environment-friendly stove reduction melting output is up to 0.6% or so, and on the earth Copper Ores containing copper grade more than 0.4% just have extraction value, and the waste of cupric 0.6% causes the waste of resource.
The content of the invention
In view of the shortcomings of the prior art, the handling process of a kind of copper-contained sludge provided by the invention, it is by ore deposit Copper making work Skill combines with the pyrogenic process disposing technique of copper-contained sludge, cooperates with the technology of Treatment of Copper sludge together；The technique is not only Most sulphur in raw material can be carried out to recycling production sulfuric acid, effectively mitigate flue gas SO2Pollution to environment, moreover it is possible to The rate of recovery of the valuable metals such as copper is significantly improved, reduces energy resource consumption.
To realize the purpose of the present invention, the present invention takes following technical scheme：
A kind of handling process of copper-contained sludge, it is characterised in that the pyrogenic process of ore deposit Copper making technique and copper-contained sludge is disposed into work Skill combines cooperative disposal, including the copper-contained sludge of different cultivars is divided by the standard of sulfur-bearing >=2% and sulfur-bearing ＜ 2% Class, then different modes is respectively adopted and is handled：
Sulfur-bearing ＜ 2% copper-contained sludge handling process comprises the following steps：
1) sulfur-bearing ＜ 2% copper-contained sludge carries out low temperature drying with dryer；
2) by after the copper-contained sludge supplying lime stone after drying, it is sent in brickmaking machine and is pressed into square brick, natural drying one week It is standby afterwards；
3) square brick made and quartz sludging flux and reduction coking coal material are added to side blowing smelting furnace together In, by a series of reduction reactions under high temperature action, generation sulfur-bearing is higher and enrichment gold, silver, palladium, nickel etc. are dilute expensive and have coloured gold The secondary blister copper of category；
4) the secondary blister copper of output is added to the blowing process of ore deposit copper metallurgy industry, utilizes the richness for bessemerizing course of reaction Excess heat carries out the processing of low cost, and after the liquid blister copper of output cupric more than 98.5%, follow-up anode furnace is sent to copper-clad Carry out pyro-refining；Sulphur generation SO in secondary blister copper2Flue gas acid preparing system output sulphur is sent to after waste heat recovery with flue gas Sold outside sour；
5) smelting slag of side blowing smelting furnace output cupric 0.6% or so is sent to the slag beneficiating process of ore deposit copper metallurgy industry Synthetical recovery is carried out, the slag concentrate of output cupric 22% or so returns to the processing of ore deposit copper metallurgy industry, and remaining cupric is below 0.20% Flotation tailings outside sell to cement building material factory as raw material；
The copper-contained sludge handling process of sulfur-bearing >=2% comprises the following steps：
1) copper-contained sludge of sulfur-bearing >=2% carries out low temperature drying with dryer；
2) copper-contained sludge after drying is sent to double rod Squeezinggranulators, system after the discharging opening of low temp dryer ejects Into graininess copper-contained sludge；
3) granular copper-contained sludge is sent into band drier to be dried；
4) graininess copper-contained sludge after drying is sent to the concentrate storehouse of ore deposit copper metallurgy industry, with copper concentrate, slag concentrate, stone It is added to after diamond stone sludging flux dispensing in smelting furnace, by a series of oxidations and makes sulfonium reaction, the sulphur generation in copper-contained sludge SO2It is sent to outside flue gas acid preparing system output sulfuric acid and sells after waste heat recovery with flue gas；Copper generation copper matte regulus in copper-contained sludge Follow-up converter procedure is sent to, by bessemerizing reaction output blister copper, oxidation in smelting furnace and sulfonium reaction is made and belongs to heat release Reaction, in addition to changing the coke powder of slag on a small quantity, it is not necessary to consume other fuel；The smelting slag of generation is sent to slag beneficiating process and entered Row synthetical recovery.
Preferably, the cupric of the step 1) of described sulfur-bearing ＜ 2% copper-contained sludge handling process and sulfur-bearing >=2% is dirty Step 1) in sludge treatment technology is dried using oar blade type or disc type dryer so that the moisture content of copper-contained sludge from 75% or so drops to 40% or so.
Preferably, the cupric of the step 1) of described sulfur-bearing ＜ 2% copper-contained sludge handling process and sulfur-bearing >=2% is dirty Oar blade type or disc type dryer used in step 1) in sludge treatment technology are steamed using pressure >=0.6MPa waste heat Vapour as thermal source, afterheat steam both from ore deposit copper metallurgy industry smelting furnace and bessemerize process subsequent high temperature fume afterheat Reclaim the steam of output.
Preferably, in the step 2) of described sulfur-bearing ＜ 2% copper-contained sludge handling process lime stone dosage weight For the 4~6% of copper-contained sludge dry weight.
Preferably, the size of compacting square brick is in the step 2) of described sulfur-bearing ＜ 2% copper-contained sludge handling process 140×120×120mm。
Preferably, quartz sludging flux in the step 3) of described sulfur-bearing ＜ 2% copper-contained sludge handling process It is that square brick adds the 6~8% of weight to add weight, and the addition weight for reducing coking coal adds the 11~14% of weight amount for square brick.
Preferably, the handling process of described a kind of copper-contained sludge, it is characterised in that the cupric of sulfur-bearing >=2% is dirty 5~15mm of diameter graininess copper-contained sludge is made in step 2) in sludge treatment technology.
Preferably, the step 3) in the copper-contained sludge handling process of sulfur-bearing >=2% makes the moisture content of copper-contained sludge Less than 10% is dropped to from 40% or so.
Preferably, belt drying used in step 3) in the copper-contained sludge handling process of described sulfur-bearing >=2% Machine using hot blast as thermal source, hot blast be with the smelting furnace of ore deposit copper metallurgy industry with bessemerize process subsequent high temperature fume afterheat The afterheat steam for reclaiming pressure >=0.6MPa of output passes through heat exchanger heat exchange output.
Preferably, graininess copper-contained sludge in step 4) in the copper-contained sludge handling process of described sulfur-bearing >=2%, Copper concentrate, slag concentrate, quartz flux press S/Cu>1.25, output clinker Fe/SiO2Matched somebody with somebody for 1.6~1.8 ratio requirement Material.
The present invention contains flue gas SO existing for more metal hazardous industry solid waste pyrogenic process disposal process such as copper aiming at existing2 The problems such as discharge capacity height, high energy consumption, recovery rate of valuable metals be low, there is provided a kind of by ore deposit Copper making technique and the fire of copper-contained sludge Method disposing technique combines the technology of cooperative disposal, and its technical characterstic has：
1) flue gas SO2Discharge capacity is few
A kind for the treatment of technology containing more metal hazardous industry solid wastes such as copper provided by the invention, sulfur-bearing is pressed by copper-contained sludge >=2% and sulfur-bearing ＜ 2% standard is classified, and sulfur-bearing >=2% copper-contained sludge is straight after low temperature drying, granulation, drying process The side blowing smelting furnace picked toward ore deposit Copper making process is handled, the sulphur generation SO in copper-contained sludge2Passed through with flue gas Flue gas acid preparing system output sulfuric acid is sent to after waste heat recovery；Sulfur-bearing ＜ 2% copper-contained sludge is molten through low temperature drying, brickmaking, reduction The secondary blister copper of the high sulfur-bearing of output is added directly into the converter of ore deposit Copper making process and handled after refining, and the sulphur in secondary blister copper also generates SO2Flue gas acid preparing system output sulfuric acid is sent to after waste heat recovery with flue gas；Present invention process scheme makes in copper-contained sludge Most sulphur all realize recycling and sulfuric acid are made, compared to existing pyrogenic process disposal process, flue gas SO2Discharge capacity significantly Reduce.
2) energy consumption is low
Existing pyrogenic process disposal process uses the thermal source of natural gas or pulverized coal friring as rotary kiln drying equipment, combustion air The thermal loss taken away is big, and present invention process scheme is the steam by the use of ore deposit Copper making process residual neat recovering system output as containing The thermal source of the drying of copper sludge (or drying) equipment, no air take away the loss of heat；
The copper-contained sludge of sulfur-bearing >=2% of the present invention is routed directly to ore deposit Copper making work after low temperature drying, granulation, drying process The side blowing smelting furnace of sequence is handled, the sulfur-bearing ＜ 2% copper-contained sludge output after low temperature drying, brickmaking, reduction melting The converter procedure that the secondary blister copper of high sulfur-bearing is added directly into ore deposit Copper making process is handled, and these processing procedures are to utilize ore deposit The surplus heat of Copper making process chemistry reaction is handled, it is not necessary to consumes other fuel, effectively less energy resource consumption.
3) recovery rate of valuable metals is high
The clinker cupric of existing pyrogenic process disposal process environment-friendly stove reduction melting output is up to 0.6% or so, and contains on the earth The Copper Ores of copper grade more than 0.4% just have extraction value, and the waste of cupric 0.6% causes the waste of resource；The present invention The slag ore-sorting system that the smelting slag of output is sent to ore deposit Copper making process is handled, final flotation tailings cupric up to 0.20% with Under, the dilute expensive and non-ferrous metal such as the gold, silver taken away from clinker, nickel can also be reclaimed by clinker ore dressing.
Brief description of the drawings
Fig. 1 is the pyrogenic process disposing technique flow chart of existing copper-contained sludge；
Fig. 2 is the processing technological flow figure of copper-contained sludge of the present invention.
Embodiment
The present invention is described in further details below in conjunction with the accompanying drawings.
Embodiment
The processing technological flow figure of copper-contained sludge as shown in Figure 2, it would be desirable to by ore deposit Copper making technique and copper-contained sludge Pyrogenic process disposing technique combine cooperative disposal, including the copper-contained sludge of different cultivars is pressed into sulfur-bearing >=2% and sulfur-bearing ＜ 2% Standard classified, then different modes is respectively adopted and is handled：
For sulfur-bearing ＜ 2% copper-contained sludge processing mode, comprise the following steps：
1) sulfur-bearing ＜ 2% copper-contained sludge carries out the gold more such as low temperature drying, cupric with oar blade type (or disc type) dryer The moisture content of category sludge drops to 40% or so from 75% or so；Used oar blade type or disc type dryer using pressure >= 0.6MPa afterheat steam is as thermal source, and afterheat steam is both from the smelting furnace of ore deposit copper metallurgy industry and after bessemerizing process The steam of continuous high-temperature flue gas waste heat recovery output.
2) it will be sent in special brickmaking machine and be pressed into some strength after the copper-contained sludge supplying lime stone after drying Size with granularity is 140 × 120 × 120mm brick material, and as the furnace charge of reducing and smelting furnace, the dosage weight of lime stone is The 4~6% of copper-contained sludge dry measure weight；
3) by the materials such as the material of brick made and quartz, lime stone flux and reduction coking coal together side blowing smelting furnace In, by a series of reduction reactions under high temperature action, generation sulfur-bearing is higher and enrichment gold, silver, selenium, tellurium, palladium, nickel etc. are dilute expensive and The secondary blister copper of non-ferrous metal；The addition weight of quartz sludging flux is that square brick adds the 6~8% of weight, reduces adding for coking coal Enter weight adds weight for square brick 11~14%.
4) the secondary blister copper of output is added directly into the converter of ore deposit Copper making process, utilizes the surplus heat for bessemerizing reaction Carry out the processing of low cost, the high-quality blister copper of output cupric more than 98.5%；Sulphur generation SO in secondary blister copper2With flue gas It is sent to outside flue gas acid preparing system output sulfuric acid and sells after waste heat recovery；
5) smelting slag of side blowing smelting furnace reduction melting process output cupric 0.6% or so is sent to ore deposit Copper making process Slag ore-sorting system handled, sell to cement building material factory as raw material outside flotation tailings of the final cupric below 0.25%.
For the copper-contained sludge processing mode of sulfur-bearing >=2%, comprise the following steps
1) copper-contained sludge of sulfur-bearing >=2% carries out the gold more such as low temperature drying, cupric with oar blade type (or disc type) dryer The moisture content of category sludge drops to 40% or so from 75% or so；Used oar blade type or disc type dryer using pressure >= 0.6MPa afterheat steam is as thermal source, and afterheat steam is both from the smelting furnace of ore deposit copper metallurgy industry and after bessemerizing process The steam of continuous high-temperature flue gas waste heat recovery output；2) copper-contained sludge after drying is directly sent to pelletize after coming out from low temp dryer Machine, 5~15mm of diameter or so graininess copper-contained sludge is made；
3) granular copper-contained sludge is sent into band drier to be dried, makes the moisture content of copper-contained sludge left from 40% The right side drops to less than 10%, and for used band drier using hot blast as thermal source, hot blast is the melting with ore deposit copper metallurgy industry Stove and the pressure >=0.6MPa for bessemerizing process subsequent high temperature flue gas waste heat recovery output afterheat steam are changed by heat exchanger Hot output；
4) graininess copper-contained sludge after drying is sent to the concentrate storehouse of ore deposit copper metallurgy industry, with copper concentrate, slag concentrate, stone It is added to after diamond stone sludging flux dispensing in smelting furnace, by a series of oxidations and makes sulfonium reaction, the sulphur generation in copper-contained sludge SO2It is sent to outside flue gas acid preparing system output sulfuric acid and sells after waste heat recovery with flue gas；Copper generation copper matte regulus in copper-contained sludge Follow-up converter procedure is sent to, by bessemerizing reaction output blister copper, oxidation in smelting furnace and sulfonium reaction is made and belongs to heat release Reaction, in addition to changing the coke powder of slag on a small quantity, it is not necessary to consume other fuel；The smelting slag of generation is sent to slag beneficiating process and entered Row synthetical recovery；Graininess copper-contained sludge, copper concentrate, slag concentrate, quartz flux press S/Cu>1.25, output clinker Fe/SiO2 Dispensing is carried out for 1.6~1.8 proportioning.
Because content of the present invention is whole technological process this part, do not have specific injected volume in embodiment, but It is clear to those skilled in the art to be, another embodiment described above is only the side of being preferable to carry out to the present invention Formula is described, and not the spirit and scope of the present invention are defined, on the premise of design concept of the present invention is not departed from, this The all variations and modifications that ordinary skill technical staff makes to technical scheme in field, it all should fall into the present invention's Protection domain, the claimed technology contents of the present invention, all record in detail in the claims.

Claims (10)

1. a kind of handling process of copper-contained sludge, it is characterised in that by ore deposit Copper making technique and the pyrogenic process disposing technique of copper-contained sludge Combine cooperative disposal, including the copper-contained sludge of different cultivars is divided by the standard of sulfur-bearing >=2% and sulfur-bearing ＜ 2% Class, then different modes is respectively adopted and is handled：
Sulfur-bearing ＜ 2% copper-contained sludge handling process comprises the following steps：
1) sulfur-bearing ＜ 2% copper-contained sludge carries out low temperature drying with dryer；
2) by after the copper-contained sludge supplying lime stone after drying, it is sent in brickmaking machine and is pressed into square brick, natural drying standby in one week With；
3) square brick made and quartz sludging flux and reduction coking coal material are added in side blowing smelting furnace together, By a series of reduction reactions under high temperature action, generation sulfur-bearing is higher and enrichment gold, silver, palladium, nickel are dilute expensive and non-ferrous metal secondary Blister copper；
4) the secondary blister copper of output is added to the blowing process of ore deposit copper metallurgy industry, utilizes the heat more than needed for bessemerizing course of reaction Measure and carry out inexpensive processing, after the liquid blister copper of output cupric more than 98.5%, be sent to follow-up anode furnace with copper-clad and carry out Pyro-refining；Sulphur generation SO in secondary blister copper2It is sent to flue gas after waste heat recovery outside flue gas acid preparing system output sulfuric acid Sell；
5) smelting slag of side blowing smelting furnace output cupric 0.6% is sent to the slag beneficiating process of ore deposit copper metallurgy industry and integrated Recovery, the slag concentrate of output cupric 22% returns to ore deposit copper metallurgy industry and handled, outside flotation tailings of the remaining cupric below 0.20% Cement building material factory is sold to as raw material；
The copper-contained sludge handling process of sulfur-bearing >=2% comprises the following steps：
1) copper-contained sludge of sulfur-bearing >=2% carries out low temperature drying with dryer；
2) copper-contained sludge after drying is sent to double roller Squeezinggranulator after the discharging opening of low temp dryer ejects, and is made Granular copper-contained sludge；
3) granular copper-contained sludge is sent into band drier to be dried；
4) graininess copper-contained sludge after drying is sent to the concentrate storehouse of ore deposit copper metallurgy industry, with copper concentrate, slag concentrate, quartz It is added to after sludging flux dispensing in smelting furnace, by a series of oxidations and makes sulfonium reaction, the sulphur generation SO in copper-contained sludge2 It is sent to outside flue gas acid preparing system output sulfuric acid and sells after waste heat recovery with flue gas；Copper generation copper matte regulus in copper-contained sludge is sent to Follow-up converter procedure, by bessemerizing reaction output blister copper, oxidation in smelting furnace and make sulfonium reaction and belong to exothermic reaction, In addition to changing the coke powder of slag on a small quantity, it is not necessary to consume other fuel；It is comprehensive that the smelting slag of generation is sent to the progress of slag beneficiating process Close recovery.
2. the handling process of a kind of copper-contained sludge according to claim 1, it is characterised in that described sulfur-bearing ＜'s 2% contains Step 1) in the step 1) of copper sludge treatment technique and the copper-contained sludge handling process of sulfur-bearing >=2% uses oar blade type or circle Tray dryer machine carries out low temperature drying so that the moisture content of copper-contained sludge drops to 40% from 75%.
3. the handling process of a kind of copper-contained sludge according to claim 1, it is characterised in that described sulfur-bearing ＜'s 2% contains Oar blade type used in step 1) in the step 1) of copper sludge treatment technique and the copper-contained sludge handling process of sulfur-bearing >=2% or Disc type dryer is using pressure >=0.6MPa afterheat steam as thermal source, and afterheat steam is both from ore deposit copper metallurgy industry Smelting furnace and bessemerize the steam of process subsequent high temperature flue gas waste heat recovery output.
4. the handling process of a kind of copper-contained sludge according to claim 1, it is characterised in that described sulfur-bearing ＜'s 2% contains The dosage weight of lime stone is the 4~6% of copper-contained sludge dry measure weight in the step 2) of copper sludge treatment technique.
5. the handling process of a kind of copper-contained sludge according to claim 1, it is characterised in that described sulfur-bearing ＜'s 2% contains The size of compacting square brick is 140 × 120 × 120mm in the step 2) of copper sludge treatment technique.
6. the handling process of a kind of copper-contained sludge according to claim 1, it is characterised in that described sulfur-bearing ＜'s 2% contains The addition weight of quartz sludging flux is that square brick adds the 6~8% of weight in the step 3) of copper sludge treatment technique, and reduction is burnt The addition weight of coal is that square brick adds the 11~14% of weight.
A kind of 7. handling process of copper-contained sludge according to claim 1, it is characterised in that the cupric of sulfur-bearing >=2% 5~15mm of diameter graininess copper-contained sludge is made in step 2) in sludge treatment technique.
A kind of 8. handling process of copper-contained sludge according to claim 1, it is characterised in that the cupric of sulfur-bearing >=2% Step 3) in sludge treatment technique makes the moisture content of copper-contained sludge drop to less than 10% from 40%.
9. the handling process of a kind of copper-contained sludge according to claim 1, it is characterised in that described sulfur-bearing >=2% contains For band drier used in step 3) in copper sludge treatment technique using hot blast as thermal source, hot blast is to use ore deposit Copper making system The smelting furnace of system and the pressure >=0.6MPa for bessemerizing process subsequent high temperature flue gas waste heat recovery output afterheat steam pass through Heat exchanger heat exchange output.
10. the handling process of a kind of copper-contained sludge according to claim 1, it is characterised in that described sulfur-bearing >=2% Graininess copper-contained sludge, copper concentrate, slag concentrate, quartz flux press S/Cu in step 4) in copper-contained sludge handling process> 1.25, output clinker Fe/SiO2Dispensing is carried out for 1.6~1.8 proportioning.
CN201611178461.3A 2016-12-19 2016-12-19 A kind of handling process of copper-contained sludge Active CN106399699B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611178461.3A CN106399699B (en) 2016-12-19 2016-12-19 A kind of handling process of copper-contained sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611178461.3A CN106399699B (en) 2016-12-19 2016-12-19 A kind of handling process of copper-contained sludge

Publications (2)

Publication Number Publication Date
CN106399699A CN106399699A (en) 2017-02-15
CN106399699B true CN106399699B (en) 2018-03-16

Family

ID=58087420

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611178461.3A Active CN106399699B (en) 2016-12-19 2016-12-19 A kind of handling process of copper-contained sludge

Country Status (1)

Country Link
CN (1) CN106399699B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106929686B (en) * 2017-04-10 2020-06-23 惠州Tcl环境科技有限公司 Method for cooperatively recovering copper in ferric trichloride etching waste liquid by utilizing metal sludge
CN107227407A (en) * 2017-07-07 2017-10-03 金川集团股份有限公司 A kind of high sulfur-bearing smelts the system and technique of tailing desulfurization and concentration of valuable metals
CN107417068A (en) * 2017-08-30 2017-12-01 杭州博雷环保科技有限公司 A kind of new sludge treatment technique
CN108273830B (en) * 2018-01-26 2020-05-19 中南大学 Copper smelting typical waste slag synergistic solidification/stabilization treatment method
CN109652653A (en) * 2018-12-21 2019-04-19 广州叶林环保科技有限公司 A kind of inorganic dangerous waste system process
CN109621278A (en) * 2019-01-14 2019-04-16 昆明理工大学 One kind gypsum tailings containing arsenic cooperates with cured method with copper ashes
CN110055412A (en) * 2019-04-28 2019-07-26 广东飞南资源利用股份有限公司 A kind of method of cupric tin electroplating sludge and desulfurized gesso of flue gas slag cooperative disposal and synthetical recovery copper and tin
CN110093512A (en) * 2019-06-10 2019-08-06 上海环境工程设计研究院有限公司 A kind of recycling unit of the high copper-contained sludge containing ink
CN110976481B (en) * 2019-12-09 2021-10-08 洛南环亚源铜业有限公司 Copper-containing hazardous waste treatment process
CN111139357A (en) * 2020-01-07 2020-05-12 中国恩菲工程技术有限公司 Method for diluting copper-containing sludge
CN111304450B (en) * 2020-04-08 2023-09-29 中国恩菲工程技术有限公司 Method and device for producing black copper from copper-containing sludge
CN111850308B (en) * 2020-07-22 2021-04-16 湖北大江环保科技股份有限公司 Method for treating copper smoke dust by using oxygen-enriched side-blown reduction smelting furnace
CN114717424B (en) * 2022-01-24 2024-07-09 池州西恩新材料科技有限公司 Smelting method for recycling copper, cobalt and nickel by utilizing low-grade solid waste raw materials containing copper, cobalt and nickel
CN114836630A (en) * 2022-03-29 2022-08-02 中国恩菲工程技术有限公司 Method and system for cooperatively treating hazardous waste containing copper by copper concentrate

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61177341A (en) * 1985-01-31 1986-08-09 Sumitomo Metal Mining Co Ltd Treatment of copper converter slag
CN101165196B (en) * 2006-10-19 2010-12-08 中国恩菲工程技术有限公司 Technique for continuously smelting copper by employing oxygen bottom converter and device thereof
CN101275185B (en) * 2008-04-28 2010-12-15 烟台鹏晖铜业有限公司 Manufacturing technique for oxygen-enriched side blowing molten pool raw copper smelting and special equipment thereof
CN101519731B (en) * 2009-04-10 2011-08-10 山东恒邦冶炼股份有限公司 Method for extracting high arsenic complicated golden ore concentrate multielement
CN102433437B (en) * 2011-10-26 2013-07-03 惠州Tcl环境科技有限公司 Heavy metal sludge recycling and innocent treatment method
CN102534225B (en) * 2012-02-27 2017-06-20 牛辉 A kind of processing method of the earth of positive pole
CN104611567A (en) * 2015-02-12 2015-05-13 池州冠华黄金冶炼有限公司 Method for treating copper-lead anode mud with alkaline process

Also Published As

Publication number Publication date
CN106399699A (en) 2017-02-15

Similar Documents

Publication Publication Date Title
CN106399699B (en) A kind of handling process of copper-contained sludge
CN104911356B (en) A kind of solid waste gas ash, the comprehensive recycling process of vanadium slag containing zinc-iron
CN103614562B (en) A kind of melting furnace process Steel Plant solid waste processing method
CN101768670B (en) Method for smelting lead-containing material
CN102321806B (en) A kind of smelting process of processing zinc leaching residue by oxygen-enriched side-blowing furnace
CN107377598B (en) Electronic waste recycling system
CN102154555B (en) Blast furnace reduction matte smelting method and device for cleanly treating lead scraps
CN203728902U (en) Integrated solid waste gas ash and zinc-containing ferrovanadium slag recovery device
CN102965510B (en) Reduction sulfur-fixing bath smelting method and device of low-sulfur lead-containing secondary material and iron-rich heavy metal solid waste
CN101705367A (en) Copper nickel smelting process with oxygen-enriched side-blowing bath smelting method
CN103981370A (en) Comprehensive recycling method of cyanide tailing slag
CN210085535U (en) Resource utilization system for waste incineration power generation ash
CN106148728B (en) A method of a variety of hazardous wastes containing zinc are disposed simultaneously using rotary kiln device
CN101892388A (en) Method and device for continuously treating lead anode slime
CN105803205B (en) A kind of energy-efficient secondary lead smelting technique
CN102965509A (en) Method and device for treating daub and iron-rich heavy metal solid waste of waste lead-acid storage battery
CN114672643B (en) Method for synergistically utilizing high-iron red mud and molten steel slag
CN107254585A (en) It is a kind of that zinc, indium, iron, the method for gallium are reclaimed from iron vitriol slag
CN102492855A (en) Method for recovering valuable metal from solid waste material containing zinc
CN109652653A (en) A kind of inorganic dangerous waste system process
CN114395702B (en) Process for recycling waste activated carbon by oxygen-enriched side-blown molten pool smelting furnace
CN103952540B (en) Ion dust mud contaning and high silicon iron concentrate is utilized to produce the technique of prereduced burden
CN209584334U (en) Manganese-silicon mine heat furnace smelting collaboration processing incineration of refuse flyash system
CN111394588A (en) Method and device for directly producing iron-vanadium-chromium alloy by treating vanadium extraction tailings
CN109652659A (en) Manganese-silicon mine heat furnace smelting collaboration processing incineration of refuse flyash system and method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant