CN106824986A - A kind of pollution-free treatment of electronic waste and the method for recycling - Google Patents

A kind of pollution-free treatment of electronic waste and the method for recycling Download PDF

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Publication number
CN106824986A
CN106824986A CN201710053700.0A CN201710053700A CN106824986A CN 106824986 A CN106824986 A CN 106824986A CN 201710053700 A CN201710053700 A CN 201710053700A CN 106824986 A CN106824986 A CN 106824986A
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China
Prior art keywords
copper
aluminium
enters
mixture
electronic waste
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CN201710053700.0A
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CN106824986B (en
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杨生强
徐正平
宦勇
周扬建
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE
    • B09B3/00Destroying solid waste or transforming solid waste into something useful or harmless
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C21/00Disintegrating plant with or without drying of the material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08Separating or sorting of material, associated with crushing or disintegrating

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

A kind of pollution-free treatment of electronic waste and the method for recycling;It is related to technical field of waste treatment.Disclose a kind of method of the brand-new pollution-free treatment of electronic waste and recycling that do not produce secondary pollution.Comprise the following steps:The device of the noxious material that the method manually dismantled will contain in electronic waste takes out, and separately deals with;Remainder is put into disintegrating machine and is crushed;Mixture after broken is divided into iron, copper aluminium mixture, the part of plastics three, wherein, iron enters iron charge collector, plastics and enters non-metal collection device;Copper aluminium mixture enters grinds glomeration copper, alumina particles mixture in grinder;Spherical copper, alumina particles mixture are sorted into copper, aluminium, and then, copper enters copper collector, aluminium and enters aluminium collector;Complete.The technology of the present invention is a kind of revolutionary processing method of electronic waste treatment industry, has important economy, social effect to China environmental protection, comprehensive utilization of resources.

Description

A kind of pollution-free treatment of electronic waste and the method for recycling
Technical field
The present invention relates to technical field of waste treatment, more particularly to kinds of processes apply to the pollution-free treatment of electronic waste with The method of recycling.
Background technology
China is scrapped more than 5,000,000 television sets, 4,000,000 refrigerators, 5,000,000 computers and 60,000,000 hands every year Machine, the annual electronic waste for producing increases year by year more than 2,300,000 tons, is exceeded by the electronic waste of illegal channels import 14000000 tons.Therefore, China needs electronic waste to be processed to reach more than 16,300,000 tons every year.China opened from January 1st, 2011 Begin what is implemented《Discarded object electric appliance and electronic Product recycling processes management rules》Regulation waste electrical and electronic equipment reclaims operator couple The waste electric products of recovery are processed, and should obtain waste electrical and electronic equipment treatment qualification.Even but having obtained Waste electrical and electronic equipment processes the enterprise of qualification, and its handling process still continues to use traditional " baked wheaten cake "(Burning-off plastics leave gold Category, produces substantial amounts of waste gas and residue)" washing "(Metal is dissolved with strong acid or " chloroazotic acid ", is discarded into through the plastics of acid soak It is new rubbish), resource utilization rate is low, and substantial amounts of waste water,waste gas and industrial residue is produced in processing procedure, to air, river, Lower water, soil etc. cause serious pollution.Therefore, China in the urgent need to one kind do not produce secondary pollution, can be to waste electronic The processing method of the recyclings such as plastics, copper, aluminium, iron in product.
The content of the invention
The present invention is directed to problem above, propose a kind of brand-new pollution-free treatment of electronic waste for not producing secondary pollution with The method of recycling.One side processing procedure does not produce waste water,waste gas and industrial residue etc. to pollute;On the other hand by electronic waste In plastics, copper, aluminium, iron all reclaim, recycle, electronic waste is turned into resource, the harm by electronic waste to environment It is preferably minimized.
The technical scheme is that:Comprise the following steps:
1)The device of the noxious material that the method manually dismantled will contain in electronic waste takes out, and separately deals with;
2)Remainder is put into disintegrating machine and is crushed;
3)Mixture after broken is divided into iron, copper aluminium mixture, the part of plastics three, wherein, iron enters into iron charge collector, plastics Enter non-metal collection device;
4)Copper aluminium mixture enters grinds glomeration copper, alumina particles mixture in grinder;
5)Spherical copper, alumina particles mixture are sorted into copper, aluminium, and then, copper enters copper collector, aluminium and enters aluminium collector;
6)Complete.
2nd, the method for a kind of pollution-free treatment of electronic waste according to claim 1 and recycling, its feature It is, step 2)、3)、4)、5)The dusty gas of middle generation through pipeline be collected into deduster treatment it is up to standard after discharge.
The present invention utilizes the mechanical treatment mode of the full physics such as broken, separation, grinding, sorting, dedusting, processing procedure not to produce Raw secondary pollution;By electronic waste automatic sorting into plastics, iron, copper, aluminium(The device of the noxious material contained in electronic waste is such as Kinescope, fluorescent screen etc. manually take out, and separately deal with)And all reclaim, discarded electronic waste is turned into resources circulation Utilize, the not only pollution by electronic waste to environment is preferably minimized, and also saves ample resources.In operating cost, although equipment Depreciation, power consumption etc. produce the plastics after certain operating cost, but electronic waste treatment, iron, copper, aluminium can be used as associated row The raw material of industry produces certain economic benefit, subsidies granted for policy considerations of the country to electronic waste treatment is added, with the technology of the present invention Treatment electronic waste can produce preferable economic benefit, and at current price measuring and calculating treatment electronic waste can produce 500-1300 Yuan/ton economic benefit(It is relevant with electronic waste species).Additionally, the technology of the present invention and conditional electronic garbage treating process phase Than treatment effeciency format high throughput is big, the annual economic benefits for producing.Therefore, the technology of the present invention is electronic waste treatment row A kind of revolutionary processing method of industry, has important economy, social effect to China environmental protection, comprehensive utilization of resources.
Brief description of the drawings
Fig. 1 is flow chart of the invention,
Fig. 2 is structural representation of the invention,
Fig. 3 is the structural representation of crushing system,
Fig. 4 is the structural representation of piece-rate system,
Fig. 5 is the structural representation of grinding system,
Fig. 6 is the structural representation of separation system;
1 is infeed belt conveyor one in figure, and 2 is disintegrating machine, and 3 is cyclone separator one, and 4 is discharging spiral conveyor, and 5 is to shake Dynamic batcher, 6 is magnetic separator, and 7 is belt conveyor, and 8 is three outlet vibratory sieves, and 81 is the outlet of bulk materials feed back, and 82 is thick Material outlet, 83 is fines outlet, and 9 is rotary drum magnetic separator one, and 10 is rotary drum magnetic separator two, and 11 is current vortex separator one, and 12 are Current vortex separator two, 13 is feeding spiral conveyer, and 14 is grinder, and 15 is cyclone separator two, and 16 is defeated feed belt Machine two is sent, 17 is five separation vibrating sieve extension sets, and 170 is maximum spheroid feed back outlet, and 18 is screw(-type) feeder one, and 19 is shaking table One, 20 is screw(-type) feeder two, and 21 is shaking table two, and 22 is screw(-type) feeder three, and 23 is shaking table three, and 24 is screw(-type) feeder four, 25 is shaking table four, and 26 is dust-precipitator.
Specific embodiment
The present invention as shown in figures 1 to 6, is comprised the following steps:1)The method manually dismantled is by having for containing in electronic waste The device of noxious material takes out, and separately deals with;
2)Disintegrating machine remainder being put into crushing system is crushed;
3)Mixture after broken is divided into iron, copper aluminium mixture, the part of plastics three by piece-rate system, wherein, iron enters iron charge Collector, plastics enter non-metal collection device;
4)Grinder grinding glomeration copper, alumina particles mixture that copper aluminium mixture enters in grinding system;
5)Spherical copper, the sorted system of alumina particles mixture are divided into copper, aluminium, and then, copper enters copper collector, aluminium and collected into aluminium Device;
6)Complete.
Wherein, the dusty gas for being produced in crushing system, piece-rate system, grinding system and separation system is collected into through pipeline Discharge after deduster treatment is up to standard.
The present invention in a particular application, including crushing system A, piece-rate system B, grinding system C, separation system D and is gathered dust System E;
Crushing system includes infeed belt conveyor 1, disintegrating machine 2, cyclone separator 1 and discharging spiral conveyor 4.Charging One end connection electronic waste preprocessing field of belt conveyor 1(Kinescope, fluorescent screen in manual demolition electronic waste etc. contain The device of noxious material), other end connection disintegrating machine 2, disintegrating machine is provided with discharge gate;The air outlet connection rotation of disintegrating machine 2 Wind separator 1.
Piece-rate system includes oscillating feeder 5, belt conveyor 7, the outlet of magnetic separator 6, three vibratory sieve 8, rotary drum magnetic separator One 9, rotary drum magnetic separator 2 10, current vortex separator 1 and current vortex separator 2 12.Oscillating feeder 5 is connected to broken system The discharging spiral conveyor 4 of system, one end connection oscillating feeder 5 of belt conveyor 7, other end connection three exports vibratory sieve 8; Three outlet vibratory sieves 8 are provided with bulk materials feed back outlet 81, coarse fodder outlet 82 and fines outlet 83, coarse fodder outlet and rotary drum magnetic separation Machine 1 is connected, and fines outlet and rotary drum magnetic separator 2 10 are connected;Rotary drum magnetic separator 1 and current vortex separator 1 are connected, and are turned Drum magnetic separator 2 10 is connected with current vortex separator 2 12.
Grinding system includes feeding spiral conveyer 13, grinder 14, cyclone separator 2 15.Feeding spiral conveyer 13 One end connection current vortex separator 1 and current vortex separator 2 12, other end connection grinder 14, grinder 14 goes out Air port is connected with cyclone separator 2 15.
Separation system includes infeed belt conveyor 2 16, five separation vibrating sieve extension sets 17, screw(-type) feeder one 18, shaking table One 19, screw(-type) feeder 2 20, shaking table 2 21, screw(-type) feeder 3 22, shaking table 3 23, screw(-type) feeder 4 24, shaking table 4 25. Five separation vibrating sieve extension sets 17 are provided with maximum spheroid feed back outlet 170, remaining four outlets respectively with screw(-type) feeder 1, Screw(-type) feeder 2 20, screw(-type) feeder 3 22, one end connection of screw(-type) feeder 4 24;The other end of screw(-type) feeder 1 with Shaking table 1 is connected, and the other end of screw(-type) feeder 2 20 is connected with shaking table 2 21, the other end of screw(-type) feeder 3 22 with shake Bed 3 23 is connected, and the other end of screw(-type) feeder 4 24 is connected with shaking table 4 25.
Dust collecting system:By dust-precipitator 26 and webmaster(Accompanying drawing is not drawn into airduct)Composition.The blast pipe of dust-precipitator 26 with it is broken The air outlet of cyclone separator 2 15, sorting in the air outlet of cyclone separator 1, piece-rate system air outlet, grinding system in system System air outlet is connected.
The present invention is at work:Electronic waste after the devices containing noxious material such as manual demolition kinescope, fluorescent screen leads to Cross and crushed into disintegrating machine 2 by infeed belt conveyor 1, be broken into piece material by discharging opening by discharging spiral transferring Machine 4 is sent to be transported to oscillating feeder 5.The repeated stock of disintegrating machine 2 and the bulk iron charge that cannot smash are by the discharging lock on disintegrating machine 2 Door is discharged into iron collector.The material that the gas of broken crusher discharge is taken out of enters powder after being separated through cyclone separator 1 Collector.
Electronic waste fragment enters belt conveyor 7 by oscillating feeder 5, and by magnetic separator, 6 points are removed iron(Iron enters iron charge Collector)Sieved into three outlet vibratory sieves 8 afterwards, bulk materials return to disintegrating machine 2 by feedback outlet, and the coarse fodder for screening out enters Rotary drum magnetic separator 1 further removes iron(Iron enters iron charge collector)Copper aluminium is separated by current vortex separator 1 to mix Thing, fines enters rotary drum magnetic separator 2 10 and further removes iron(Iron enters iron charge collector)Separated by current vortex separator 2 12 Copper aluminium mixture, the copper aluminium mixture isolated enters non-ferrous metal collector, remainder(Mainly in electronic waste Plastics)Into non-metal collection device.
Copper aluminium mixture is transported to grinder 14 and is ground granulation and forms copper, aluminium ball shape by feeding spiral conveyer 13 Grain discharge grinder;The material that the gas of grinder discharge is taken out of enters powder collector after being separated through cyclone separator 2 15.
Copper, aluminium spherical particle are sieved by infeed belt conveyor 2 16 into five separation vibrating sieve extension sets 17, most Big spheroid passes through maximum spheroid feed back and exports return grinding;The copper aluminium spherical particle of other four kinds of specifications passes through screw feeder respectively Machine 1 enters shaking table into shaking table 1, by screw(-type) feeder 2 20 into shaking table 2 21, by screw(-type) feeder 3 22 3 23, shaking table 4 25 is entered by screw(-type) feeder 4 24, shaking table 1, shaking table 2 21, shaking table 3 23 and shaking table 4 25 will not The copper aluminium ball shape grain sorting of same specification enters copper collector, aluminium and enters aluminium collector into copper and aluminium, copper, completes electronic waste Automatic sorting treatment.
Cyclone separator 2 15 in the discharge of cyclone separator 1 gas, piece-rate system discharge gas, grinding system in crushing system Discharge gas and separation system discharge gas process rear discharge up to standard by steel pipe into dust-precipitator 26, and the dust of collection enters powder Collector.Whole processing unit is nearly free from secondary pollution.
The shaking table one, shaking table two, shaking table three and shaking table four are air-flow shaking table.Air-flow shaking table is the wind in separation equipment Optional equipment and gravity screening plant, principle are that material is fallen on compass screen surface, with the shake of shaking table, lightweight thing such as paper, plastics, ash Dirt etc. is separated under wind-force effect, and other materials are separated because of density difference under the shake of shaking table, reach lightweight thing, low The separation of density and high density thing.
Electronic waste is processed by the present apparatus, and the final product for the treatment of is iron, copper, aluminium and plastics, and iron, copper, aluminium can be made It is the raw material of related smelting enterprise, the plastics for sub-electing predominantly ABS engineering plastics can be used to pour into a mould municipal inspection shaft cover, water conservancy And plumbing with small-sized gate, block dirty grid, water leg etc..
The treatment that apparatus of the present invention are used for electronic waste is capable of achieving the cleaning of electronic waste treatment, minimizing, innoxious And resource.
The present invention at work, one, the device of noxious material that will contain in electronic waste of the method manually dismantled such as Kinescope, fluorescent screen etc. take out, and separately deal with;2nd, remainder is put into disintegrating machine and is crushed;3rd, it is mixed after crushing Compound is divided into iron by separating(Into iron charge collector), copper and aluminium block mixture(Into grinder), plastics(Into non- Metal collectors)Three parts;4th, copper aluminium block mixture enters grinder grinding glomeration copper alumina particles mixture;5th, it is spherical Copper alumina particles mixture is sorted to be divided into copper(Into copper collector), aluminium(Into aluminium collector).6th, crush, separate, grinding, Sorting etc. generation dusty gas through pipeline be collected into deduster treatment it is up to standard after discharge.
Product iron, copper, aluminium can be used as the originals of the industry relevant enterprises such as casting, smelting after above-mentioned PROCESS FOR TREATMENT for electronic waste Material, plastics(Mainly ABS engineering plastics)Can be used to pour into a mould municipal inspection shaft cover, water conservancy and the small-sized gate of plumbing, block dirty lattice Grid, water leg etc..

Claims (2)

1. a kind of pollution-free treatment of electronic waste and the method for recycling, it is characterised in that comprise the following steps:
1)The device of the noxious material that the method manually dismantled will contain in electronic waste takes out, and separately deals with;
2)Remainder is put into disintegrating machine and is crushed;
3)Mixture after broken is divided into iron, copper aluminium mixture, the part of plastics three, wherein, iron enters into iron charge collector, plastics Enter non-metal collection device;
4)Copper aluminium mixture enters grinds glomeration copper, alumina particles mixture in grinder;
5)Spherical copper, alumina particles mixture are sorted into copper, aluminium, and then, copper enters copper collector, aluminium and enters aluminium collector;
6)Complete.
2. a kind of pollution-free treatment of electronic waste according to claim 1 and the method for recycling, it is characterised in that Step 2)、3)、4)、5)The dusty gas of middle generation through pipeline be collected into deduster treatment it is up to standard after discharge.
CN201710053700.0A 2017-01-24 2017-01-24 A kind of method of electronic waste pollution-free processing and resource utilization Expired - Fee Related CN106824986B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107899724A (en) * 2017-12-12 2018-04-13 梁玉燕 A kind of electronic waste retracting device
CN108480358A (en) * 2018-03-08 2018-09-04 中山大学 A kind of scrap glass cracking and sorting recycling system and method
CN106824986B (en) * 2017-01-24 2019-06-21 杨生强 A kind of method of electronic waste pollution-free processing and resource utilization
CN110496846A (en) * 2019-07-05 2019-11-26 苏州鑫达资源再生利用有限公司 A method of recycling copper from useless circuit board
CN112828011A (en) * 2021-01-05 2021-05-25 湖南邦普循环科技有限公司 Method for treating waste lithium battery copper-aluminum material and application

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004074136A (en) * 2002-08-19 2004-03-11 Nippon Founder:Kk Pollution-free recycling treatment method of general waste
CN102699008A (en) * 2012-06-12 2012-10-03 清华大学 Mechanically physical treatment method used for various electronic wastes
CN102962244A (en) * 2012-12-07 2013-03-13 桑德环境资源股份有限公司 Waste PCB (printed circuit board) crushing and sorting system
CN106269803A (en) * 2016-09-29 2017-01-04 北京航天斯达科技有限公司 A kind of waste refrigerators harmless disassembly and resource classification reclaimer and method
CN106734116A (en) * 2017-01-24 2017-05-31 杨生强 A kind of electronic waste processing unit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106824986B (en) * 2017-01-24 2019-06-21 杨生强 A kind of method of electronic waste pollution-free processing and resource utilization

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004074136A (en) * 2002-08-19 2004-03-11 Nippon Founder:Kk Pollution-free recycling treatment method of general waste
CN102699008A (en) * 2012-06-12 2012-10-03 清华大学 Mechanically physical treatment method used for various electronic wastes
CN102962244A (en) * 2012-12-07 2013-03-13 桑德环境资源股份有限公司 Waste PCB (printed circuit board) crushing and sorting system
CN106269803A (en) * 2016-09-29 2017-01-04 北京航天斯达科技有限公司 A kind of waste refrigerators harmless disassembly and resource classification reclaimer and method
CN106734116A (en) * 2017-01-24 2017-05-31 杨生强 A kind of electronic waste processing unit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106824986B (en) * 2017-01-24 2019-06-21 杨生强 A kind of method of electronic waste pollution-free processing and resource utilization
CN107899724A (en) * 2017-12-12 2018-04-13 梁玉燕 A kind of electronic waste retracting device
CN108480358A (en) * 2018-03-08 2018-09-04 中山大学 A kind of scrap glass cracking and sorting recycling system and method
CN110496846A (en) * 2019-07-05 2019-11-26 苏州鑫达资源再生利用有限公司 A method of recycling copper from useless circuit board
CN112828011A (en) * 2021-01-05 2021-05-25 湖南邦普循环科技有限公司 Method for treating waste lithium battery copper-aluminum material and application

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