CN205774730U - A kind of complete set of equipments refining noble metal from wiring board waste material - Google Patents
A kind of complete set of equipments refining noble metal from wiring board waste material Download PDFInfo
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- CN205774730U CN205774730U CN201620618814.6U CN201620618814U CN205774730U CN 205774730 U CN205774730 U CN 205774730U CN 201620618814 U CN201620618814 U CN 201620618814U CN 205774730 U CN205774730 U CN 205774730U
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- wiring board
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- waste material
- complete set
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- 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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- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model discloses a kind of complete set of equipments refining noble metal from wiring board waste material, complete set of equipments includes bottom convertor, flue gas secondary combustion stove, absorption tower, pulsed jet cloth filter, wet desulfurizer and electrostatic precipitation demister, it is characterized in that, it is provided with flue at bottom convertor top, flue and the inlet communication of flue gas secondary combustion stove, flue gas secondary combustion stove is connected with spray chilling tower tower by smoke and waste steam boiler, the outlet of spray chilling tower is connected with pulsed jet cloth filter by absorption tower, is provided with activated carbon injection apparatus in absorption tower；Pulsed jet cloth filter connects with wet desulfurizer；Wet desulfurizer is connected with chimney by electrostatic precipitation demister.This utility model achieves many metals and efficiently separates and distinguish enriching and recovering, to environment non-secondary pollution.There is significant economy, environmental protection and social benefit.
Description
Technical field
This utility model relates to pyrogenic process-wet method combined smelting process technical field, is specifically related to a kind of from wiring board waste material
The complete set of equipments of middle refinement noble metal.
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
Certain granularity, then with water as medium, uses shaking table to process it, is finally reached the reinforcing materials such as copper and glass fibre
The purpose separated.
(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.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model be to provide a kind of safe and reliable, stably carry out circuit
Pyrogenic process-wet method combined the smelting equipment of board waste material resource recycling.This utility model solves secondary to environment of dioxin
Pollution problem.
To achieve these goals, technical solutions of the utility model:
A kind of complete set of equipments refining noble metal from wiring board waste material, including bottom convertor, electric mantle heater, smoke secondary combustion
Burning stove, smoke and waste steam boiler, spray chilling tower, absorption tower, pulsed jet cloth filter, wet desulfurizer and electrostatic precipitation remove mist
Device, is provided with the inlet communication of flue, flue and flue gas secondary combustion stove at bottom convertor top, and flue gas secondary combustion stove passes through cigarette
Gas waste heat boiler connects with spray chilling tower, and the outlet of spray chilling tower is connected with pulsed jet cloth filter by absorption tower, inhales
Receive in tower and be provided with activated carbon injection apparatus；Pulsed jet cloth filter connects with wet desulfurizer；Wet desulfurizer is by quiet
Electric precipitation demister connects with chimney.
Further, solid pipeline is connected with burner hearth by solid charging entrance, and solid pipeline has two imports, and one is used for
Entering shivering material, another is used for into coal dust；Bottom convertor also has an import i.e. upper furnace side to be provided with slag to add entrance, be used for
Enter electric furnace insulation slag.
Further, smoke and waste steam boiler divides preboiler of two-stage nitration and secondary preheating boiler.
Further, chilling tower is supporting is provided with pond and water pump for spray.
Further, the slag notch of bottom convertor enters electric mantle heater by transporter, and an outlet of electric mantle heater is passed through
Electric furnace is incubated slag feeding slag and adds in entrance by grass-hopper, and another outlet of electric mantle heater connects with water quenching pool.
Further, bottom convertor includes furnace foundation, cupola well, burner hearth, furnace roof and flue, and cupola well is arranged on furnace foundation, and burner hearth is arranged
On cupola well, burner hearth is arranged above furnace roof, and furnace roof top is provided with flue, and roof of the furnace is provided with solid charging entrance, upper furnace one
Side is provided with slag and adds entrance；Cupola well side is provided with burner hearth stand, and siphon port is arranged on above the burner hearth stand of cupola well, siphon port with
Cupola well inner cylinder body and burner hearth connection, a middle side part of burner hearth stand is provided with slag notch.
Further, being provided with Copper Water Jacket in burner hearth, furnace roof is provided with top water jacket.
Further, burner hearth and Copper Water Jacket are provided with several wind-eyes.
This utility model beneficial effect:
1. 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.
2. 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.
3. 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.
4. equipment needed thereby is brief, and floor space is little, and cost of investment is low.
5. non-ferrous metal and precious and rare metals recovery rate are high, to environment non-secondary pollution.
Accompanying drawing explanation
Fig. 1 is this utility model complete set of equipments schematic diagram.
Fig. 2 is this utility model bilateral bottom convertor structural representation.
Detailed description of the invention
Below in conjunction with embodiment, being further described this utility model, following example are intended to this utility model is described
Rather than to further restriction of the present utility model.
Embodiment 1:
As shown in Figure 1, 2:
Complete set of equipments includes cutter 3, pulverizer 4, shivering material 5, bilateral bottom convertor (hereinafter referred to as bottom convertor), insulation electricity
Stove 7, water quenching pool 8, flue gas secondary combustion stove 9, a preboiler 10, secondary preheating boiler 11, spray chilling tower 12, pond
13, water pump 14, absorption tower 15, pulsed jet cloth filter 16, wet desulfurizer 17, electrostatic precipitation demister 18, chimney 19.
Bottom convertor includes slag notch 60, furnace foundation 61, cupola well 62, wind-eye 63, and slag adds entrance 64, solid charging entrance 65,
Top water jacket 66, flue 67, Copper Water Jacket 68, siphon port 69.Cupola well 62 is arranged on furnace foundation 61, and burner hearth is arranged on cupola well 62,
Being provided with Copper Water Jacket 68 in burner hearth, burner hearth is arranged above furnace roof, and furnace roof is provided with top water jacket 66, and furnace roof top is provided with flue 67, burner hearth
Top is provided with solid charging entrance 65, and upper furnace side is provided with slag and adds entrance 64；Burner hearth and Copper Water Jacket 68 are provided with some
Individual wind-eye 63；Cupola well 62 side is provided with burner hearth stand, and siphon port 69 is arranged on above the burner hearth stand of cupola well 62, siphon port 69 with
Cupola well 62 inner cylinder body and burner hearth connection, a middle side part of burner hearth stand is provided with slag notch 60.
Waste electrical equipment 1 is disassembled, and sort out wiring board waste material 2, wiring board waste material 2 enters cutter 3.
Cutter 3 separates with pulverizer 4 or supports the use, and mainly wiring board waste material 2 is processed into shivering material 5；
Shivering material 5 is entered bottom convertor from solid charging entrance 65 by solid pipeline；Solid pipeline has two imports, and one
Individual being used for into shivering material 5, another is used for into coal dust；Bottom convertor also has an import i.e. upper furnace side to be provided with slag addition
Mouth 64, is used for being incubated slag into electric furnace；The flue gas that bottom convertor produces is discharged by being arranged on the flue 67 at bottom convertor top, flue
67 with the inlet communication of flue gas secondary combustion stove 9, flue gas secondary combustion stove 9 is by smoke and waste steam boiler with spray chilling tower 12 even
Logical, smoke and waste steam boiler divides preboiler 10 of two-stage nitration and secondary preheating boiler 11；Chilling tower 12 is supporting is provided with pond for spray
13 and water pump 14；The outlet of spray chilling tower 12 is connected with pulsed jet cloth filter 16 by absorption tower 15, sets in absorption tower 15
Active charcoal injection apparatus；Pulsed jet cloth filter 16 connects with wet desulfurizer 17；Wet desulfurizer 17 passes through electrostatic
Dedusting demister 18 connects with chimney 19.
The slag notch 60 of bottom convertor enters electric mantle heater 7 by transporter, and an outlet of electric mantle heater 7 is by transferring
Electric furnace is incubated slag feeding slag and adds in entrance 64 by device, and another outlet of electric mantle heater 7 connects with water quenching pool 8.
Technological process:
(1) by computer waste and old for waste electrical equipment 1(, mobile phone, television set, VCD machine, audio amplifier, photocopier, facsimile machine,
The conventional electronic product such as automobile electronics) disassemble, sort out wiring board waste material 2.
(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 spray chilling after waste heat boiler
Tower, sprays with water, 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 spray chilling tower, by two remaining evils
English absorption on the activated carbon and is collected in sack cleaner, and the amount of flue dust 50 % uses with activated carbon powder mixing circulation,
Remain the flue dust of 50 % amounts 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 wet desulfurizer and carries out degree of depth dedusting except mist, thoroughly gets rid of
Acid mist emission dustiness 0～15 mg/Nm in making 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 (8)
1. from wiring board waste material, refine a complete set of equipments for noble metal, including bottom convertor, electric mantle heater (7), smoke secondary
Combustion furnace (9), smoke and waste steam boiler, spray chilling tower (12), absorption tower (15), pulsed jet cloth filter (16), wet type desulfurizing
Device (17) and electrostatic precipitation demister (18), it is characterised in that be provided with flue (67) at bottom convertor top, flue (67) with
The inlet communication of flue gas secondary combustion stove (9), flue gas secondary combustion stove (9) is by smoke and waste steam boiler and spray chilling tower (12)
Connection, the outlet of spray chilling tower (12) is connected with pulsed jet cloth filter (16) by absorption tower (15), in absorption tower (15)
It is provided with activated carbon injection apparatus；Pulsed jet cloth filter (16) connects with wet desulfurizer (17)；Wet desulfurizer (17)
Connected with chimney (19) by electrostatic precipitation demister (18).
A kind of complete set of equipments refining noble metal from wiring board waste material the most according to claim 1, it is characterised in that Gu
Body pipeline is connected with burner hearth by solid charging entrance (65), and solid pipeline has two imports, and one is used for into shivering material (5),
Another is used for into coal dust；Bottom convertor also has an import i.e. upper furnace side to be provided with slag to add entrance (64), be used for into electricity
Stove insulation slag.
A kind of complete set of equipments refining noble metal from wiring board waste material the most according to claim 1, it is characterised in that cigarette
Gas waste heat boiler divides preboiler (10) of two-stage nitration and secondary preheating boiler (11).
A kind of complete set of equipments refining noble metal from wiring board waste material the most according to claim 1, it is characterised in that spray
Pouring chilling tower (12) is supporting is provided with pond (13) and water pump (14).
A kind of complete set of equipments refining noble metal from wiring board waste material the most according to claim 1, it is characterised in that the end
The slag notch (60) of blown converter enters electric mantle heater (7) by transporter, and grass-hopper is passed through in an outlet of electric mantle heater (7)
Electric furnace being incubated slag feeding slag and adds in entrance (64), another outlet of electric mantle heater (7) connects with water quenching pool (8).
A kind of complete set of equipments refining noble metal from wiring board waste material the most according to claim 1, it is characterised in that the end
Blown converter includes furnace foundation (61), cupola well (62), burner hearth, furnace roof and flue (67), and cupola well (62) is arranged on furnace foundation (61), and burner hearth sets
Putting on cupola well (62), burner hearth is arranged above furnace roof, and furnace roof top is provided with flue (67), and roof of the furnace is provided with solid charging entrance
(65), upper furnace side is provided with slag and adds entrance (64)；Cupola well (62) side is provided with burner hearth stand, and siphon port (69) is arranged on
Above the burner hearth stand of cupola well (62), siphon port (69) connects with cupola well (62) inner cylinder body and burner hearth, in the side of burner hearth stand
Portion is provided with slag notch (60).
A kind of complete set of equipments refining noble metal from wiring board waste material the most according to claim 6, it is characterised in that stove
Being provided with Copper Water Jacket (68) in thorax, furnace roof is provided with top water jacket (66).
A kind of complete set of equipments refining noble metal from wiring board waste material the most according to claim 7, it is characterised in that stove
Thorax and Copper Water Jacket (68) are provided with several wind-eyes (63).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620618814.6U CN205774730U (en) | 2016-06-22 | 2016-06-22 | A kind of complete set of equipments refining noble metal from wiring board waste material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620618814.6U CN205774730U (en) | 2016-06-22 | 2016-06-22 | A kind of complete set of equipments refining noble metal from wiring board waste material |
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| CN205774730U true CN205774730U (en) | 2016-12-07 |
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ID=58129458
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107217148A (en) * | 2017-06-08 | 2017-09-29 | 合肥峰腾节能科技有限公司 | A kind of energy-saving processing method of waste electron wiring board |
-
2016
- 2016-06-22 CN CN201620618814.6U patent/CN205774730U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107217148A (en) * | 2017-06-08 | 2017-09-29 | 合肥峰腾节能科技有限公司 | A kind of energy-saving processing method of waste electron wiring board |
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