CN106086416A - The technology that a kind of wiring board waste disposal utilizes - Google Patents

The technology that a kind of wiring board waste disposal utilizes Download PDF

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Publication number
CN106086416A
CN106086416A CN201610454217.9A CN201610454217A CN106086416A CN 106086416 A CN106086416 A CN 106086416A CN 201610454217 A CN201610454217 A CN 201610454217A CN 106086416 A CN106086416 A CN 106086416A
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China
Prior art keywords
slag
wiring board
board waste
copper
waste material
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CN201610454217.9A
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CN106086416B (en
Inventor
叶标
许国洪
路永锁
黄中良
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JIANGXI SELF-INDEPENDENCE ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
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JIANGXI SELF-INDEPENDENCE ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
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    • 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
    • C22B11/00—Obtaining noble metals
    • C22B11/02—Obtaining noble metals by dry processes
    • C22B11/021—Recovery of noble metals from waste materials
    • C22B11/025—Recovery of noble metals from waste materials from manufactured products, e.g. from printed circuit boards, from photographic films, paper, or baths
    • 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
    • C22B15/0056—Scrap treating
    • 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
    • C22B19/00—Obtaining zinc or zinc oxide
    • C22B19/30—Obtaining zinc or zinc oxide from metallic residues or scraps
    • 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
    • C22B21/00—Obtaining aluminium
    • C22B21/0007—Preliminary treatment of ores or scrap or any other metal source
    • 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
    • C22B25/00—Obtaining tin
    • C22B25/06—Obtaining tin from scrap, especially tin scrap
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/12—Electrolytic production, recovery or refining of metals by electrolysis of solutions of copper
    • 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

Abstract

The invention discloses the technology of a kind of wiring board waste disposal, with wiring board waste material as raw material, through Mechanical Crushing, at 1100 DEG C～1400 DEG C oxygen-enriched side-blowing bath melting output rich in the blister copper of rare precious metal, metallic copper and the earth of positive pole rich in rare precious metal is obtained again through electrorefining, melting flue gas is through second-time burning, cool down rapidly, inhibiting dioxin again to synthesize, bagroom has reclaimed the oxide of the metals such as volatile stannum, lead, zinc, empties dust contained flue gas 0～15 mg/Nm3.Trapping agent can make slag cupric less than 0.2 %, it is achieved rare precious metal all reclaims, and slag is the waste of silicate, can use as cement plant raw material or roadbed paving.The invention enables resource and the utilizations such as wiring board waste material, it is achieved that many metals efficiently separate and distinguish enriching and recovering, and organic substance is as fuel use, to environment non-secondary pollution.Technological process is short, has significant economy, environmental protection and social benefit.

Description

The technology that a kind of wiring board waste disposal utilizes
Technical field
The present invention relates to pyrogenic process-wet method combined smelting process technical field, be specifically related to a kind of wiring board waste disposal profit Technology.
Background technology
Electron wastes is the common name of the various electronics close to its " service life " terminal, including waste and old computer, shifting The conventional electronic products such as mobile phone, television set, VCD machine, audio amplifier, photocopier, facsimile machine, refrigerator, washing machine.Due to technological progress With the decline of price, this series products has much just to face reaching far away actual life when is eliminated destiny by user.
The generation amount of electron wastes (also including producing leftover bits produced by electronic circuit board) is with annual 3%～5% Speed quickly increase, become the class solid waste that growth rate is the fastest.According to relevant report, the annual electronics produced in the whole world Up to 50,000,000 tons of garbage, it is contemplated that be up to 65,400,000 tons in 2017.
At present, China is an electronic circuit board big producing country, with regard to China's electron wastes annual production about 1,890,000 tons.In advance Meter, by 2015, is often only in production process about 60,000 tons of the wiring board waste material produced.If the most only refining gold therein, Value therein reaches 1,800,000,000 yuan.
Recovery, the recycling work that relatively morning carries out to discarded wiring board waste material, is mainly manifested in contained by it The recovery of metal.Its main method has three classes:
(1) gravity concentration techniques processes useless circuit board.This technology principle based on gravity separation, is first crushed to useless plate necessarily Granularity, then with water as medium, use shaking table that it is processed, be finally reached the reinforcing materials such as copper and glass fibre and separate Purpose.
(2) pyrometallurgical smelting technology.Mainly include shaft smelting, Kaldo Furnace melting.Pyrogenic attack is given up circuit board Advantage is to take full advantage of the glass fibre in useless circuit board so that it is play the effect of flux in fusion process, is formed steady Fixed silicate slag, solves wet treatment and passively processes the problem of glass fibre chip, and end product is copper bullion, cupric Amount is general between 80%～90%, containing the noble metal of trace.
(3) burn, smelting technology processes useless circuit board.In useless circuit board fusion process to the pollutant of environment essentially from Organic burning, therefore, this technology it is important that it is carried out pretreatment before useless circuit board enters stove, by organic compound combustion Fall, and flue gas is effectively processed, eliminate the dioxin pollution to environment, the most again burning material is carried out melting process.
According to Research statistics, the main component of mainboard used in a computer in terms of contained metal material, each Metal ingredient is respectively as follows: copper 66.9 %, stannum 10.7 %, ferrum 10.3 %, lead 7.61 %, golden 0.11 %, palladium 0.02 %, other gold Belong to composition 4.41 %.Metal species contained in wiring board waste material is mainly copper.Its amount is at 20 %～40 %.Online Possibly together with flame retardant constituent in the resin of road board waste material, and fire retardant is mainly containing bromine compound, stibium oxide, phosphorus compound Deng.Before the refine that discarded circuit board waste material carries out copper is reclaimed, it is necessary to being separated by these impurities, this is to ensure that gold Belong to the key of safety in removal process.Containing precious metals such as gold, palladiums in discarded wiring board waste material.Becoming containing gold, palladium In the tcrude ore divided, their amount only has 10 below ppm, and gold, palladium content in discarded circuit board waste material are raw ores In stone 2～20 times more than of this content.Therefore carry out and gold, the recycling of palladium metal are had the biggest development prospect.Also Research and analyse result to show, in the electronics board of 1 ton of random collection, 143 kg copper can be isolated, 0.5 g gold, 40.8 G ferrum, 29.5 g lead, 2.0 g stannum, 18.1 g nickel, 10.0 g antimony.
Electron wastes not only enormous amount, and endanger serious, deal with improperly and human and environment will be caused serious two Secondary harm.Waste household appliance mainly contains 6 kinds of harmful substances: lead, cadmium, hydrargyrum, Cr VI, igelite, bromination hinder Combustion agent.
The reasonable treatment approach of electron wastes should be fully to realize its recycling, makes garbage reenter people " energy cycle of matter " system within class industrial system, reduce burns, throw aside, the place of the increase ecological environment burden such as landfill Reason mode.
Summary of the invention
For the deficiencies in the prior art, it is an object of the invention to provide a kind of safe and reliable, stably carry out wiring board and give up Pyrogenic process-wet method combined smelting process the technology and equipment of material resource recycling.The technology of the present invention is initiated at home, solves The dioxin secondary pollution problem to environment.
Problem to be solved by this invention is the resource regeneration of wiring board waste material and utilizes, except reclaiming heavy metal and expensive Outside metal, other resin, rubber, plastics and glass fibre etc. are the most all fully utilized as matter energy element.
To achieve these goals, technical solution of the present invention is:
The technology that a kind of wiring board waste disposal utilizes, with wiring board waste material as raw material, this technology includes that Mechanical Crushing, pyrogenic process are molten Refining and wet method electrolysis technique:
(1) wiring board waste material chipper or gyratory crusher are crushed, form the fragment that granularity is 10 cm × 10 below cm； Preferably fragment granularity 2 cm × 2 cm～8 cm × 8 cm；
(2) in bilateral bottom convertor hereinafter referred to as bottom convertor, wiring board pieces of waste material, coal dust, electric furnace insulation slag are melted Refining, it is ensured that slag slag type is stable；Wherein, the organic components in wiring board waste material and potential energy substance, at high melt During, use as fuel；
(3) control the flue-gas temperature that the reaction in bottom convertor produces, use and include ventilating and providing enough spaces to ensure to wave The Organic substance sent out burns completely, reclaims flue dust simultaneously, stops the generation of dioxin；
(4) when the liquid level of melt exceeds than headwall slag-drip opening, stop adding wiring board pieces of waste material, slag is entered insulation Being incubated in electric furnace, deslagging recovers charging after terminating and carries out melting, repeats deslagging and charging process, until the liquid level of melt goes up To slag-drip opening during 100 mm～200 mm, stop fusion process；
(5) slag is incubated in electric furnace, for hearth layer during next stove furnace lifting melting；
(6) spray gun being inserted melt, spray into fine coal, carry out oxygen-enriched air converting, obtain blister copper after blowing, blister copper is cast into positive plate； Preferably, during blowing, it is ensured that Control for Kiln Temperature is at 1200 DEG C～1250 DEG C, and oxygen concentration is 40 %～50 %, oxygen be blown into pressure Power is 170 ± 20 kPa；
(7) copper anode plate send electrolysis system manufacture cathode copper product, from electrolysis bath, draws out the earth of positive pole send rare precious metal workshop Reclaim gold, silver and platinum group metal, recycle rich in stannum, lead, the flue dust of zinc and Waste Slag.
Further, in step (1), described wiring board waste material derive from include scrapping computer, mobile phone, TV The wiring board disassembled on machine, VCD machine, audio amplifier, photocopier and facsimile machine product, also includes in electronic product machining manufacture process Garbage.
Further, in step (2), during melting, pulverized coal consumption 12%～25%, in temperature 1100 DEG C～1400 DEG C, oxygen-enriched Melting is burned under concentration 20 %～70 %, oxygen-enriched pressure 150～190 kPa；When copper mouth blister copper grade copper is more than 90%, and slag enters Enter electric mantle heater.
Further, in step (2), coal dust is blown in stove by furnace roof, and wiring board waste material is put into by feeding warehouse, 1200 DEG C～1250 DEG C at complete combustion decomposition；Slag in electric furnace holding furnace is that bottom convertor slag-drip opening is released, wherein rich in silicic acid Salt and calcium oxide, as rebasing slag when again feeding intake, to ensure that slag slag type is stable.
Further, in step (2), wiring board pieces of waste material being continuously added in stove with 5 t/h～50 t/h, coal dust is used Amount is for putting into 12 %～25 % of wiring board waste material, and the content of copper, calcium oxide and silicon oxide in periodic detection slag, interpolation traps Agent, trapping agent addition, to keep slag copper content to fully enter in acid bronze alloy less than 0.2 %, rare precious metal, keeps slag Middle calcium oxide 30 %～35 %, silicon oxide are standard at 30 %～32 %；When in slag type, calcium oxide component adds oxidation when reducing Calcium；Preferably, trapping agent addition is 5 %-15 % of wiring board waste material.
Further, in step (5), during dispensing, electric mantle heater slag 30 %～50 % is returned bottom convertor and circulate as flux Using, allocate trapping agent simultaneously into, trapping agent addition fully enters copper with holding slag copper content less than 0.2 %, rare precious metal In base alloy, keeping calcium oxide 30 %～35 %, silicon oxide in slag is standard at 30 %～32 %；By isolated in electric furnace Black copper returns and continues to be smelted into blister copper into bottom convertor；Preferably, trapping agent addition is 5 %-15 % of wiring board waste material.
Further, described bottom convertor, its hearth area 4-15m2, lower portion of furnace body is overlapped group by Copper Water Jacket, top by molten iron Becoming, tuyere area is positioned at slag blanket, and body of heater top flue arranges with waste heat boiler integrated, and configures second-time burning air port.
Further, in step (3), bottom convertor smoke and waste steam boiler sets two-stage nitration, be respectively body of heater top second-time burning flue, Membrane wall radiation chamber, is down to 550 DEG C～680 DEG C by flue-gas temperature from 1150 DEG C～1250 DEG C；
Further preferably, described bottom convertor flue gas arranges chilling tower after waste heat boiler, with water spray, by flue-gas temperature from In 1.5 ± 0.5 seconds, it is down to less than 200 DEG C, prevents dioxin resynthesis for 550 DEG C～680 DEG C；
Further preferably, described bottom convertor flue gas arranges activated carbon injection apparatus and pulsed jet cloth filter after chilling tower, Remaining dioxin absorption on the activated carbon and being collected in sack cleaner, the flue dust of 20 %～80 % returns and continues Recycling with fresh activity charcoal mixing jetting, remainder flue dust is as stannum, lead, the resource reutilization of zinc；
Further preferably, described bottom convertor flue gas arranges wet desulfurizer, two in removing flue gas after sack cleaner Sulfur oxide, makes sulfur dioxide emissioning concentration be less than 150 mg/Nm3；
Further preferably, described bottom convertor flue gas arranges electrostatic precipitation demister after desulfurizing tower to carry out degree of depth dedusting and removes Mist, in thoroughly getting rid of acid mist emission and making the flue gas of discharge, dustiness is less than 15 mg/Nm3。
Further, in step (4), from the slag of electric mantle heater spilling through shrend, as selling to cement manufacture outside waste Factory or roadbed paving use, the black copper obtained returns and continues to be smelted into blister copper into bottom convertor；
Preferably, in described wiring board waste material, glass fiber component can use as the slag former of melting, and the shrend of generation is given up Waste cupric is less than 0.2 %.
In above technology:
The Organic substances such as rubber, resin, plastics in wiring board pieces of waste material are used as potential " energy " so that it is in C-H bond Burning completely under hot conditions oxygen-enriched, its burning is an exothermic reaction, in order to improve and to keep the temperature of bottom convertor 1100 ℃-1400 ℃。
Using coal dust as fuel and reducing agent, addition is 12 %～25 % so that valuable metal oxygen in wiring board waste material Changing and reduction, produce acid bronze alloy melt, allocate trapping agent into, in order to trap heavy metals and noble metal, and stannum, lead, zinc etc. are easily waved The property sent out metal enters flue dust with oxide, reclaims through bagroom.
Using glass fibre in wiring board waste material as a kind of supplementary additive of bottom convertor, silicon, calcium, magnesium, ferrum etc. are made Slag removes, and slag, through Water Quenching, uses as construction material, slag rate 30 %～40 %, and cupric is less than 0.2 %.
In in bottom convertor, slag puts into electric mantle heater, from the slag of molten condition, acid bronze alloy is fully isolated；Protect During slag can return to again to put into the bottom convertor of wiring board waste material in temperature electric furnace, allocate 10 %～30 % calcium oxide into trap circuit Silica composition in glass fibre in board waste material.
Blister copper molten mass casting copper anode plate, containing copper grade more than 90%.
The method have the benefit that
1. pair wiring board waste components strong adaptability, gets the raw materials ready simple.
2. under the hot conditions of bottom convertor, can ensure that in wiring board waste material, organic substance fully burns, and reaches 99.9 more than % Clear up rate.
3. take full advantage of energy element potential in wiring board waste material, save energy resource consumption.
4. electric mantle heater can keep slag to be in molten condition all the time, capable of circulation melts down use, takes full advantage of slag Latent heat, has saved again the energy consumption of furnace lifting.
5. make use of glass fibre in wiring board waste material, save the use of slag former.Add trapping agent and can reduce slag Cupric is less than 0.2 % so that rare precious metal all fuses in blister copper alloy.
6. bottom convertor top arranges flue gas secondary combustion flue so that in flue gas, organic components is the most fully burnt, and makes Dioxin decomposes.
7. equipment needed thereby is brief, and floor space is little, and cost of investment is low.
8. non-ferrous metal and precious and rare metals recovery rate are high, to environment non-secondary pollution.
Accompanying drawing explanation
Fig. 1 is present invention process flow chart.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described, and it is right that following example are intended to illustrate rather than The further restriction of the present invention.
Embodiment 1:
As it is shown in figure 1, technological process:
(1) by waste electrical equipment (waste and old computer, mobile phone, television set, VCD machine, audio amplifier, photocopier, facsimile machine, automobile The conventional electronic product such as electronic component) disassemble, sort out wiring board waste material.
(2) crushing wiring board waste material chipper or gyratory crusher, forming granularity is 2 cm × 2 cm～8 cm × 8 The fragment of cm.
(3) according to the weight ratio of 20:3:7 to 12m2Bilateral bottom convertor (hereinafter referred to as bottom convertor) puts into wiring board waste material Fragment, coal dust, electric furnace insulation slag.Coal dust is blown in stove by furnace roof, and wiring board waste material is put into by feeding warehouse, at 1200 DEG C ～burn at 1250 DEG C and decompose completely.Slag in electric furnace holding furnace is that bottom convertor slag-drip opening is released, wherein rich in silicate And calcium oxide, as rebasing slag when again feeding intake, to ensure that slag slag type is stable.
(4) step 2 wiring board pieces of waste material is continuously added in stove with 30 t/h, copper, oxidation in periodic detection slag Calcium and the content of silicon oxide, add trapping agent to keep slag copper content to fully enter acid bronze alloy less than 0.2 %, rare precious metal In, in holding slag, calcium oxide 30 %～35 %, silicon oxide are at 30 %～32 %.When in slag type, calcium oxide component is added when reducing Calcium oxide.
(5) it is important that control the flue-gas temperature that reaction produces, the generation of dioxin is stopped.The wind-eye of bottom convertor upper furnace Can effectively supplement secondary wind, and have enough spaces to ensure the Organic substance of volatilization at a temperature of 1200 DEG C～1250 DEG C Burn completely.Lead and stannum are partly into flue dust, are partly into slag.Enter in slag after ferrum, manganese, aluminum oxidation.
(6) bottom convertor smoke and waste steam boiler sets two-stage nitration, is body of heater top second-time burning flue, membrane wall radiation chamber respectively, Flue-gas temperature is down to 600 DEG C～680 DEG C from 1150 DEG C～1250 DEG C.Flue gas arranges chilling tower after waste heat boiler, uses Water sprays, and from 600 DEG C～680 DEG C, flue-gas temperature was down in 1.5 seconds 200 DEG C, prevents dioxin resynthesis.
(7) flue gas arranges activated carbon injection apparatus and pulsed jet cloth filter after chilling tower, is inhaled by remaining dioxin Attached on the activated carbon and collecting in sack cleaner, the amount of flue dust 50 % uses with activated carbon powder mixing circulation, residue The flue dust of 50 % amounts is as stannum, lead, the resource reutilization of zinc.
(8) flue gas arranges wet desulfurizer, the sulfur dioxide in removing flue gas after sack cleaner, makes sulfur dioxide Concentration of emission 0～150 mg/Nm3。
(9) flue gas arranges electrostatic precipitation demister after desulfurizing tower and carries out degree of depth dedusting except mist, thoroughly gets rid of acid mist row Put and make dustiness 0～15 mg/Nm in the flue gas of discharge3。
(10) when the liquid level of melt exceeds 0.3 m～0.5 m than headwall slag-drip opening, stop adding wiring board waste material broken Sheet, first opens slag-drip opening, is entered by slag in electric mantle heater and is incubated, and after deslagging terminates, closes slag-drip opening, recovers charging and melts Refining, repeats deslagging and charging process, until copper face goes up during 100 mm～200 mm to slag-drip opening, stops fusion process.
(11) spray gun is inserted melt, spray into fine coal, carry out oxygen-enriched air converting, it is ensured that Control for Kiln Temperature is at 1200 DEG C～1250 DEG C, oxygen concentration is 40 %～50 %, and the pressure that is blown into of oxygen is 170 kPa, obtain after blowing in blister copper copper content 90 % with On.Blister copper and slag are got rid of from copper mouth and cinder notch respectively, and blister copper is cast into positive plate.
(12) from the slag of electric mantle heater spilling through shrend, as selling to cement production plants or roadbed paving outside waste With, the black copper of precipitation returns and continues to be smelted into blister copper into bottom convertor.
(13) when furnace lifting feeds intake again, electric mantle heater slag 50 % is returned again in side-blown bottom convertor as rebasing furnace charge and Flux uses, after start to throw wiring board waste material and carry out melting.
(14) copper anode plate send electrolysis system manufacture cathode copper product, from electrolysis bath, draws out the earth of positive pole send rare precious metal Gold, silver and platinum group metal are reclaimed in workshop.
In the present embodiment, when processing 100 tons of wiring board waste materials, can be with output 15.6t blister copper positive plate, cupric 92%, nickeliferous 0.02%, containing gold 3.5g/t；Output Water Quenching Slag 35t, flue dust 50kg.Electrorefining output tough cathode 14.4t, reclaims the earth of positive pole 780kg。

Claims (10)

1. the technology that wiring board waste disposal utilizes, with wiring board waste material as raw material, this technology includes Mechanical Crushing, pyrogenic process Melting and wet method electrolysis technique, it is characterised in that
(1) wiring board waste material chipper or gyratory crusher are crushed, form the fragment that granularity is 10 cm × 10 below cm； Preferably fragment granularity 2 cm × 2 cm～8 cm × 8 cm；
(2) in bilateral bottom convertor hereinafter referred to as bottom convertor, wiring board pieces of waste material, coal dust, electric furnace insulation slag are melted Refining, it is ensured that slag slag type is stable；Wherein, the organic components in wiring board waste material and potential energy substance, at high melt During, use as fuel；
(3) control the flue-gas temperature that the reaction in bottom convertor produces, use and include ventilating and providing enough spaces to ensure to wave The Organic substance sent out burns completely, reclaims flue dust simultaneously, stops the generation of dioxin；
(4) when the liquid level of melt exceeds than headwall slag-drip opening, stop adding wiring board pieces of waste material, slag is entered insulation Being incubated in electric furnace, deslagging recovers charging after terminating and carries out melting, repeats deslagging and charging process, until the liquid level of melt goes up To slag-drip opening during 100 mm～200 mm, stop fusion process；
(5) slag is incubated in electric furnace, for hearth layer during next stove furnace lifting melting；
(6) spray gun being inserted melt, spray into fine coal, carry out oxygen-enriched air converting, obtain blister copper after blowing, blister copper is cast into positive plate； Preferably, during blowing, it is ensured that Control for Kiln Temperature is at 1200 DEG C～1250 DEG C, and oxygen concentration is 40 %～50 %, oxygen be blown into pressure Power is 170 ± 20 kPa；
(7) copper anode plate send electrolysis system manufacture cathode copper product, from electrolysis bath, draws out the earth of positive pole send rare precious metal workshop Reclaim gold, silver and platinum group metal, recycle rich in stannum, lead, the flue dust of zinc and Waste Slag.
The technology that a kind of wiring board waste disposal the most according to claim 1 utilizes, it is characterised in that in step (1), institute The wiring board waste material stated derives from computer, mobile phone, television set, VCD machine, audio amplifier, photocopier and the fax including scrapping The wiring board disassembled on machine product, also includes the garbage in electronic product machining manufacture process.
The technology that a kind of wiring board waste disposal the most according to claim 1 utilizes, it is characterised in that in step (2), molten During refining, pulverized coal consumption 12 %～25 %, at temperature 1100 DEG C～1400 DEG C, oxygen-rich concentration 20 %～70 %, oxygen-enriched pressure 150 ～190 burn melting under kPa；When copper mouth blister copper grade copper enters electric mantle heater more than 90 %, slag.
The technology that a kind of wiring board waste disposal the most according to claim 1 utilizes, it is characterised in that in step (2), coal Powder is blown in stove by furnace roof, and wiring board waste material is put into by feeding warehouse, complete combustion decomposition at 1200 DEG C～1250 DEG C；Electricity Slag in stove holding furnace is that bottom convertor slag-drip opening is released, wherein rich in silicate and calcium oxide, as when again feeding intake Rebasing slag, to ensure that slag slag type is stable.
The technology that a kind of wiring board waste disposal the most according to claim 1 utilizes, it is characterised in that in step (2), will Wiring board pieces of waste material is continuously added in stove with 5 t/h～50 t/h, pulverized coal consumption be put into wiring board waste material 12 %～ 25 %, the content of copper, calcium oxide and silicon oxide in periodic detection slag, add trapping agent, trapping agent addition is to keep slag Copper content fully enters in acid bronze alloy less than 0.2 %, rare precious metal, keeps calcium oxide 30 %～35 %, silicon oxide in slag It is standard at 30 %～32 %；When in slag type, calcium oxide component adds calcium oxide when reducing；Preferably, trapping agent addition is circuit 5 %-15 % of board waste material.
The technology that a kind of wiring board waste disposal the most according to claim 1 utilizes, it is characterised in that in step (5), join During material, electric mantle heater slag 30 %～50 % is returned bottom convertor to recycle as flux, allocate trapping agent, trapping agent simultaneously into Addition, to keep slag copper content to fully enter in acid bronze alloy less than 0.2 %, rare precious metal, keeps calcium oxide 30 in slag %～35 %, silicon oxide are standard at 30 %～32 %；Black copper isolated in electric furnace is returned and continues to be smelted into slightly into bottom convertor Copper；Preferably, trapping agent addition is 5 %-15 % of wiring board waste material.
The technology that a kind of wiring board waste disposal the most according to claim 1 utilizes, it is characterised in that described bottom blowing Stove, its hearth area 4-15 m2, lower portion of furnace body is made up of molten iron set Copper Water Jacket, top, and tuyere area is positioned at slag blanket, body of heater top Portion's flue is arranged with waste heat boiler integrated, and configures second-time burning air port.
The technology that a kind of wiring board waste disposal the most according to claim 1 utilizes, it is characterised in that in step (3), the end Blown converter smoke and waste steam boiler sets two-stage nitration, is body of heater top second-time burning flue, membrane wall radiation chamber respectively, by flue-gas temperature from It is down to 550 DEG C～680 DEG C for 1150 DEG C～1250 DEG C；
Further preferably, described bottom convertor flue gas arranges chilling tower after waste heat boiler, with water spray, by flue-gas temperature from In 1.5 ± 0.5 seconds, it is down to less than 200 DEG C, prevents dioxin resynthesis for 550 DEG C～680 DEG C；
Further preferably, described bottom convertor flue gas arranges activated carbon injection apparatus and pulsed jet cloth filter after chilling tower, Remaining dioxin absorption on the activated carbon and being collected in sack cleaner, the flue dust of 20 %～80 % returns and continues Recycling with fresh activity charcoal mixing jetting, remainder flue dust is as stannum, lead, the resource reutilization of zinc；
Further preferably, described bottom convertor flue gas arranges wet desulfurizer, two in removing flue gas after sack cleaner Sulfur oxide, makes sulfur dioxide emissioning concentration be less than 150 mg/Nm3；
Further preferably, described bottom convertor flue gas arranges electrostatic precipitation demister after desulfurizing tower to carry out degree of depth dedusting and removes Mist, in thoroughly getting rid of acid mist emission and making the flue gas of discharge, dustiness is less than 15 mg/Nm3。
The technology that a kind of wiring board waste disposal the most according to claim 1 utilizes, it is characterised in that in step (4), from The slag that electric mantle heater overflows is through shrend, and as selling to cement production plants or roadbed paving use outside waste, the black copper obtained returns Enter bottom convertor to continue to be smelted into blister copper；
Preferably, in described wiring board waste material, glass fiber component can use as the slag former of melting, and the shrend of generation is given up Waste cupric is less than 0.2 %.
10. the technology that wiring board waste disposal utilizes, with wiring board waste material as raw material, this technology includes Mechanical Crushing, fire Method melting and wet method electrolysis technique, melt wiring board pieces of waste material, coal dust, electric furnace insulation slag in bilateral bottom convertor Refining, it is ensured that slag slag type is stable；Wherein, the organic components in wiring board waste material and potential energy substance, at high melt During, use as fuel, it is characterised in that
Bottom convertor smoke and waste steam boiler sets two-stage nitration, is body of heater top second-time burning flue, membrane wall radiation chamber respectively, by flue gas temperature Degree is down to 550 DEG C～680 DEG C from 1150 DEG C～1250 DEG C；
Further preferably, described bottom convertor flue gas arranges chilling tower after waste heat boiler, with water spray, by flue-gas temperature from In 1.5 ± 0.5 seconds, it is down to less than 200 DEG C, prevents dioxin resynthesis for 550 DEG C～680 DEG C；
Further preferably, described bottom convertor flue gas arranges activated carbon injection apparatus and pulsed jet cloth filter after chilling tower, Remaining dioxin absorption on the activated carbon and being collected in sack cleaner, the flue dust of 20 %～80 % returns and continues Recycling with fresh activity charcoal mixing jetting, remainder flue dust is as stannum, lead, the resource reutilization of zinc；
Further preferably, described bottom convertor flue gas arranges wet desulfurizer, two in removing flue gas after sack cleaner Sulfur oxide, makes sulfur dioxide emissioning concentration be less than 150 mg/Nm3；
Further preferably, described bottom convertor flue gas arranges electrostatic precipitation demister after desulfurizing tower to carry out degree of depth dedusting and removes Mist, in thoroughly getting rid of acid mist emission and making the flue gas of discharge, dustiness is less than 15 mg/Nm3。
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CN108707750A (en) * 2018-05-08 2018-10-26 中国恩菲工程技术有限公司 A kind of integrated conduct method of copper-contained sludge and wiring board
CN108823418A (en) * 2018-08-23 2018-11-16 贵研资源（易门）有限公司 The method of spent auto-catalysts collaboration recycling noble metal
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CN115029553A (en) * 2022-01-07 2022-09-09 昆明理工大学 Method for cooperatively treating copper-containing electronic waste through oxygen-enriched bottom blowing smelting

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CN107142374A (en) * 2016-03-01 2017-09-08 兰州中环工程设备有限公司 Kaldo Furnace handles electricity/wiring board processes
CN106086415A (en) * 2016-06-22 2016-11-09 江西自立环保科技有限公司 A kind of complete set of equipments refining noble metal from wiring board waste material and method
CN106086415B (en) * 2016-06-22 2018-07-24 江西自立环保科技有限公司 The complete set of equipments and method of noble metal are refined in a kind of board waste material from circuit
CN107012748A (en) * 2017-03-24 2017-08-04 金川集团股份有限公司 A kind of method that railway line is laid on loose smelted furnace cinder
CN108165754A (en) * 2017-12-30 2018-06-15 北京工业大学 The method of wiring board bath smelting cigarette ash noble metal cycle chlorination enrichment
CN108413400A (en) * 2018-02-11 2018-08-17 中南大学 A kind of method of alkaline residue and discarded circuit board copyrolysis
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CN108531737A (en) * 2018-05-08 2018-09-14 中国恩菲工程技术有限公司 A kind of total system of copper-contained sludge and wiring board
CN108707750A (en) * 2018-05-08 2018-10-26 中国恩菲工程技术有限公司 A kind of integrated conduct method of copper-contained sludge and wiring board
CN108531737B (en) * 2018-05-08 2024-02-27 中国恩菲工程技术有限公司 Comprehensive treatment system for copper-containing sludge and circuit board
CN108707750B (en) * 2018-05-08 2020-03-03 中国恩菲工程技术有限公司 Comprehensive treatment method for copper-containing sludge and circuit board
CN108823418A (en) * 2018-08-23 2018-11-16 贵研资源（易门）有限公司 The method of spent auto-catalysts collaboration recycling noble metal
CN110872647A (en) * 2018-09-04 2020-03-10 中节能工程技术研究院有限公司 Method for environment-friendly treatment of waste circuit board by pure oxygen smelting
CN111690814A (en) * 2020-07-06 2020-09-22 矿冶科技集团有限公司 Method for smelting waste circuit board by oxygen-enriched side-blown furnace
CN112795790A (en) * 2020-12-26 2021-05-14 中国瑞林工程技术股份有限公司 Method for treating waste circuit board by continuous copper smelting process
CN115029553A (en) * 2022-01-07 2022-09-09 昆明理工大学 Method for cooperatively treating copper-containing electronic waste through oxygen-enriched bottom blowing smelting

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