CN105256142B - The recovery process of copper metal in a kind of waste and old circuit board - Google Patents
The recovery process of copper metal in a kind of waste and old circuit board Download PDFInfo
- Publication number
- CN105256142B CN105256142B CN201510743514.0A CN201510743514A CN105256142B CN 105256142 B CN105256142 B CN 105256142B CN 201510743514 A CN201510743514 A CN 201510743514A CN 105256142 B CN105256142 B CN 105256142B
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- circuit board
- drying
- waste
- copper metal
- hot
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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
Abstract
The invention discloses a kind of recovery process of copper metal in waste and old circuit board, including feeding process, broken process, screening process, sorting process, dehydration procedure, baking operation, removal of impurities process and pack process.Than the process that traditional recovery method adds solid water separation, drying, removal of impurities and pack, the processing through above-mentioned operation successively of waste and old circuit board material, copper metal is reclaimed from raw material, carried out on whole process line, there is no the participation of artificial treatment process, automaticity is high, and whole process effectively improves production efficiency and can reduce the labor intensity of worker by pipelining.
Description
Technical field
The present invention relates to waste and old circuit board reclaimer technical field, copper metal returns in especially a kind of waste and old circuit board
Knock off skill.
Background technology
At present, regeneration copper resource in China's accounts for very big ratio in China's copper resource total amount, and resource regeneration is advocated in China
Under the overall situation of environmental protection, waste recovery reconstruction industry develop rapidly, it is various waste and scrap is processed set
It is standby also to emerge in an endless stream, exemplified by reclaiming scrap electrical wires cable, be typically first pass through cut-out it is broken after, then by shaking table etc. by plastics and
Metal separates, and reaches the purpose of metal recovery.And be the mixture of copper, ferrous metal etc. in the metal reclaimed, also need to enter them
The further separation of row.
The existing recovery to waste and old circuit plate is also mainly produced by multiple independent processes, such as application number
For 201110118096.8 Chinese invention patent, it discloses a kind of method that copper metal is reclaimed from discarded printed circuit boards,
Specifically first through 1, feeding process：Material is delivered to primary breaker through frequency-changing conveying device；2nd, broken process：By primary breakup
Machine carries out primary breakup, obtains primary breakup material；Primary breakup material is again through variable-frequency breaking feeding-distribution device sub-material to secondary breakup
Machine carries out secondary breakup, obtains secondary breakup material；Secondary breakup material is added into water, obtains mixture；3rd, screening process：Mixture passes through
Full-automatic vibration sieve screening, is obtained compared with crude mixture particle and thinner compound particles；Secondary breakup is delivered to compared with crude mixture particle
Machine is further in small, broken bits；4th, process is sorted：Thinner compound particles further divide through shaking table material-separating device sub-material to separation shaking table
Choosing, obtains copper powder.Although such a method can obtain copper metal from waste and old circuit board, also need manually to dry in the air by follow-up
The processing such as dry, removal of impurities, the later stage mainly by manual operation, low production efficiency and labor intensity is big.
The content of the invention
It is an object of the invention to overcome the shortcomings of above-mentioned prior art, there is provided one kind is simple in construction, it is artificial to reduce
Intervene and improve the recovery process of copper metal in the waste and old circuit board of production efficiency.
To achieve these goals, the technical solution adopted by the present invention is：The recovery of copper metal in a kind of waste and old circuit board
Technique, including feeding process：Material is delivered to primary breaker through frequency-changing conveying device；Broken process：Entered by primary breaker
Row primary breakup, obtain primary breakup material；Primary breakup material enters through variable-frequency breaking feeding-distribution device sub-material to secondary breaker again
Row secondary breakup, obtain secondary breakup material；Secondary breakup material is added into water, obtains mixture；Screening process：Mixture is through full-automatic
Vibratory sieve screens, and obtains compared with crude mixture particle and thinner compound particles；Secondary breaker, which is delivered to, compared with crude mixture particle enters one
Walk in small, broken bits；Thinner compound particles are through shaking table material-separating device sub-material to separation shaking table, and further sorting, obtains aqueous copper powder metal object
Material；It is characterized in that：Also include dehydration procedure, baking operation, removal of impurities process and pack process, wherein,
Dehydration procedure：The aqueous metalliferous material for being sub-elected separation shaking table using grit water separator is separated, by gold
Category material is delivered to baking operation；
Baking operation：The drying and processing of material is carried out using a material conveying dryer, the material conveying dryer includes
Belt conveyor, permanent magnetism flatten roller, far infra-red heater and hot-air drying unit, and permanent magnetism flattens roller, far infrared adds
Hot device and hot-air drying unit are separately mounted to anterior belt conveyor conveyer belt, middle part and the top at rear portion, flatten permanent magnetic roll assembly of roll magnetic separator
Cylinder is 5-10mm by motor driving and the distance between lowermost end and conveyer belt surface, during work, first passes through permanent magnetism slicking-in roller
Cylinder makes material tile and absorbs iron filings, then sets far infra-red heater and hot-air drying unit to carry out by being located above conveyer belt
Drying and processing, the material after drying deliver to removal of impurities process by belt conveyor；
Clean process：Using a knot screen, the knot screen includes trash extraction box, pipeline fan, impurities removal pipeline, whirlwind point
From device and refuse collecting case, during work, pipeline fan starts, and material is freely fallen in trash extraction box by belt conveyor, quality
The impurity such as lighter plastics enter in cyclone separator with air-flow through impurities removal pipeline, finally fall in refuse collecting case, and copper particle
Material is then fallen on the bottom plate of trash extraction box, and is glided along inclined plate face, is fallen by discharging opening, into pack process；
Pack process：Pack packing is carried out to the material fallen by trash extraction box discharging opening using automatic packer.
Further, the primary breaker used in the broken process is also equipped with anti-jamming control system, and this is anti-
Stuck control system includes touch-screen, programmable controller, analog-to-digital conversion module, the alarm in primary breaker frame
Device, the velocity sensor on primary breakup crushing roller, the frequency converter electrically connected with broken roll drive motor, touch
Screen, analog-to-digital conversion module, frequency converter are connected by data wire with programmable controller respectively, velocity sensor and analog-to-digital conversion mould
Block electrically connects；During work, the rate signal of velocity sensor detection breaker roll rotation simultaneously transmits a signal to programmable controller,
When speed interval of the speed less than setting, programmable controller sends control instruction to frequency converter, control motor reversion
After certain time, being stuck in the circuit board between roller can eject, and then recover to rotate forward.
Further, the hot-air drying unit adds including drying casing, air blower, intake stack, wind pipe and electricity
Heat pipe, the air outlet of intake stack are connected with drying the top surface of casing, and air blower is arranged on intake stack, electric heating tube peace
Positioned at the lower section of the air outlet of intake stack in drying baker body, one end of wind pipe is connected with drying the side of casing
Connect, the other end extends in front of far infra-red heater and makes air outlet face conveyer belt surface.
Further, the wind pipe of the hot-air drying unit is provided with two, is separately positioned on the drying casing
Both sides, the caliber of each wind pipe is 1/3rd of the caliber of the intake stack.
Further, the grit water separator is by charging precipitation bucket, helical axis, helicla flute, support frame and drive device
Composition.
The beneficial effects of the invention are as follows：Automaticity is high, increases the processes such as follow-up solid water separation, drying, removal of impurities, entirely
Journey is reduced manual intervention, is effectively improved production efficiency and can reduce the labor intensity of worker by pipelining.
Brief description of the drawings
The present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the process chart of the present invention.
Fig. 2 is the electrical connection frame of anti-jamming control system used in primary breaker in broken process in the present invention
Figure.
Fig. 3 is the structural representation of material conveying dryer used in baking operation in the present invention.
Fig. 4 is the structural representation of the hot-air drying unit used in baking operation on material conveying dryer in the present invention
Figure.
Fig. 5 is the structural representation of the knot screen to be cleaned in the present invention used in process.
Embodiment
As shown in figure 1, in a kind of waste and old circuit board of the present invention copper metal recovery process, including feeding process, breaker
Sequence, screening process, sorting process, dehydration procedure, baking operation, removal of impurities process and pack process.
Wherein, feeding process：Material is delivered to primary breaker through frequency-changing conveying device.
Broken process：Primary breakup is carried out by primary breaker, obtains primary breakup material；Primary breakup material is again through frequency conversion
Broken feeding-distribution device sub-material to secondary breaker carries out secondary breakup, obtains secondary breakup material；Secondary breakup material is added into water, obtained
Mixture.
Screening process：Mixture screens through full-automatic vibration, obtains compared with crude mixture particle and thinner compound particles；Compared with
It is further in small, broken bits that crude mixture particle delivers to secondary breaker.
Sort process：Thinner compound particles are through shaking table material-separating device sub-material to separation shaking table, and further sorting, is obtained aqueous
Copper powder metalliferous material.
Dehydration procedure：Separated using a grit water separator, the grit water separator is by charging precipitation bucket, helical axis, spiral shell
Spin slot, support frame and drive device composition, aqueous metalliferous material that separation shaking table is sub-elected enter after charging precipitation bucket by
Sloping plate deposition, water are discharged from overflow launder, and helical axis discharges after metalliferous material is lifted out into the water surface from water, metalliferous material is conveyed
To baking operation.
Baking operation：The drying and processing of material is carried out using a material conveying dryer, the material conveying dryer includes
Belt conveyor, permanent magnetism flatten roller, far infra-red heater and hot-air drying unit, and permanent magnetism flattens roller, far infrared adds
Hot device and hot-air drying unit are separately mounted to anterior belt conveyor conveyer belt, middle part and the top at rear portion, flatten permanent magnetic roll assembly of roll magnetic separator
Cylinder is 5-10mm by motor driving and the distance between lowermost end and conveyer belt surface, during work, first passes through permanent magnetism slicking-in roller
Cylinder makes material tile and absorbs iron filings, then sets far infra-red heater and hot-air drying unit to carry out by being located above conveyer belt
Drying and processing, the material after drying deliver to removal of impurities process by belt conveyor；
Clean process：Using a knot screen, the knot screen includes trash extraction box, pipeline fan, impurities removal pipeline, whirlwind point
From device and refuse collecting case, during work, pipeline fan starts, and material is freely fallen in trash extraction box by belt conveyor, quality
The impurity such as lighter plastics enter in cyclone separator with air-flow through impurities removal pipeline, finally fall in refuse collecting case, and copper particle
Material is then fallen on the bottom plate of trash extraction box, and is glided along inclined plate face, is fallen by discharging opening, into pack process；
Pack process：Pack packing is carried out to the material fallen by trash extraction box discharging opening using automatic packer.
As shown in Fig. 2 the primary breaker used in above-mentioned broken process is also equipped with anti-jamming control system, this is anti-
Stuck control system includes touch-screen 1, programmable controller 2, analog-to-digital conversion module 3, the alarm on crusher frame
Device 4, the velocity sensor 5 on adjuster for crusher roll of crusher, the frequency converter 7 electrically connected with broken roll drive motor 6.Wherein,
Touch-screen 1, analog-to-digital conversion module 3, frequency converter 7 are connected by data wire with programmable controller 2 respectively, velocity sensor 5 with
Analog-to-digital conversion module 3 electrically connects.During work, the rate signal of velocity sensor detection breaker roll rotation and transmit a signal to can
Programmable controller, when speed interval of the speed less than setting, programmable controller sends control instruction and driven to frequency converter, control
After dynamic motor reversal certain time, being stuck in the circuit board between roller can eject, and then recover to rotate forward.The time of reversion can basis
It is actually needed and is configured, such as 10 seconds, 15 seconds etc..
Further, anti-jamming control system also includes an electric cabinet being arranged on crusher frame, above-mentioned programmable
Controller 2 and frequency converter 7 are arranged in electric cabinet, and touch-screen 1 is then on the front panel of electric cabinet.Before electric cabinet
Power supply indicator 8, scram button 91, manually auto-start button 92, rotating forward start button 93 and reversion manually are additionally provided with plate
Start button 94.By button can manual intervention, realize the operation of jerk, automatic start, manual forward or reverse, aspect dimension
Protect and used when urgent.
As shown in Figure 3,4, the material conveying dryer in above-mentioned baking operation includes belt conveyor 61, in Belt Conveying
The conveyer belt front upper of machine 61 is provided with one and flattens permanent magnetism roller 62, flatten permanent magnetism roller 62 driven by a motor and lowermost end with
The distance between conveyer belt surface is 5-10mm, and a far infra-red heater 63 is additionally provided with the middle part of conveyer belt, and rear portion is provided with a heat
Wind drying unit 64.
Specifically, hot-air drying unit 64 includes drying casing 641, air blower 642, intake stack 643, wind pipe
644th, the support foot rest 646 of electric heating tube 645 and drying casing.The top surface of the air outlet of intake stack 643 and drying casing 641
It is connected, air blower 642 is arranged on intake stack 643, and electric heating tube 645, which is arranged in drying baker body, is located at intake stack
The lower section of 643 air outlet.One end of wind pipe 644 is connected with drying the side of casing 641, and the other end extends to remote red
The front of outside line heater 63 simultaneously makes air outlet face conveyer belt surface.In the present embodiment, drying casing 641 includes bottom panel, preceding
Side plate, back side panel left plate, right plate, top panel, offer in the lower edge of front side board and back side panel and are passed through for conveyer belt
Breach 647, bottom panel is arranged on conveyer belt between lower band and is fixed on support foot rest 646, on the left of front side board, back side panel
It is fixed on after plate, right plate, top panel assembling on bottom panel.The wind pipe 644 of hot-air drying unit 64 is provided with two, point
The both sides of drying casing 641 are not arranged on, and the caliber of each wind pipe 644 is 1/3rd of the caliber of intake stack 643.
The air outlet of two wind pipes 44 connects with the fan housing 648 that one is arranged on conveyer belt surface.
By using above-mentioned material conveying dryer, it is first passed through flattens roller and material is tiled the present invention, then by being located at
Set far infra-red heater and hot-air drying unit to carry out drying and processing above conveyer belt, it is higher to first pass through energy conversion efficiency
Far infra-red heater carry out first time drying after, the hot blast of reusable heat wind drying unit carries out secondary drying；The two is mutually tied
Close, drying efficiency is higher and dries evenly, the situation for avoiding some copper particles from not drying completely.Additionally by wind pipe by heat
The a tail wind of wind drying unit is guided to far-infrared heater, a tail wind waste heat can be recycled, energy-conserving and environment-protective, is improved indirectly
Drying efficiency.In addition, the iron filings contained in copper particle can be removed by permanent magnetism roller, the purity of copper particle is improved.
As shown in Figure 5：Knot screen in above-mentioned removal of impurities process include trash extraction box 71, pipeline fan 72, impurities removal pipeline 73,
Cyclone separator 74 and refuse collecting case 75.The bottom panel of trash extraction box 71 is obliquely installed and is flexibly connected with casing, trash extraction box 71
Bottom panel offer for magnetic sheet and in bottom discharging opening 76.Air inlet, the air outlet of pipeline fan 72 pass through impurity-discharging pipe respectively
Road 73 is connected with casing middle part, cyclone separator 74.Refuse collecting case 75 is arranged on below the discharging opening of cyclone separator 74.
The charging aperture of sack filling machine connects with the discharging opening of cyclone separator 74.At work, pipeline fan 72 starts knot screen 7,
During material free-falling, the impurity such as plastics of lighter weight enters in cyclone separator 74 with air-flow through impurities removal pipeline,
Finally fall in refuse collecting case 75；And the material of the quality weight such as copper particle is then fallen on the bottom plate of trash extraction box 71, and along inclination
Plate face glide, fallen by discharging opening；During slip, iron filings are then held by magnetic sheet, reach the purpose of removal of impurities iron removaling.
Further, the bottom of magnetic sheet is hinged with casing one side, the another side snapping of top and casing.In trash extraction box
Opening be additionally provided with a stock guide 77.
Finally it should be noted that above content is merely illustrative of the technical solution of the present invention, rather than the present invention is protected
The limitation of scope, the simple modification or equivalent substitution that one of ordinary skill in the art is carried out to technical scheme,
All without departing from the spirit and scope of technical solution of the present invention.
Claims (5)
1. the recovery process of copper metal in a kind of waste and old circuit board, including feeding process, broken process, screening process and grder man
Sequence, it is characterised in that：Also include dehydration procedure, baking operation, removal of impurities process and pack process, wherein,
Dehydration procedure：The aqueous metalliferous material for being sub-elected separation shaking table using grit water separator is separated, by metal object
Material is delivered to baking operation；
Baking operation：The drying and processing of material is carried out using a material conveying dryer, the material conveying dryer includes belt
Conveyer, permanent magnetism flatten roller, far infra-red heater and hot-air drying unit, and permanent magnetism flattens roller, far infra-red heater
Be separately mounted to belt conveyor conveyer belt anterior, middle part and the top at rear portion with hot-air drying unit, flatten permanent magnetism roller by
One motor drives and the distance between lowermost end and conveyer belt surface are 5-10mm, and during work, first passing through permanent magnetism pressing roller makes
Material tiles and absorbs iron filings, then sets far infra-red heater and hot-air drying unit to be dried above conveyer belt by being located at
Processing, the material after drying deliver to removal of impurities process by belt conveyor；
Clean process：Using a knot screen, the knot screen includes trash extraction box, pipeline fan, impurities removal pipeline, cyclone separator
With refuse collecting case, during work, pipeline fan starts, and material is freely fallen in trash extraction box by belt conveyor, lighter weight
Plastic contaminant enter with air-flow through impurities removal pipeline in cyclone separator, finally fall in refuse collecting case, and copper particle material is then
Fall on the bottom plate of trash extraction box, and glided along inclined plate face, fallen by discharging opening, into pack process；
Pack process：Pack packing is carried out to the material fallen by trash extraction box discharging opening using automatic packer.
2. the recovery process of copper metal in waste and old circuit board according to claim 1, it is characterised in that：The broken process
Used in primary breaker be also equipped with anti-jamming control system, the anti-jamming control system includes touch-screen, programmable
Controller, analog-to-digital conversion module, the alarm in primary breaker frame, on primary breakup crushing roller
Velocity sensor, the frequency converter electrically connected with broken roll drive motor, touch-screen, analog-to-digital conversion module, frequency converter pass through respectively
Data wire is connected with programmable controller, and velocity sensor electrically connects with analog-to-digital conversion module；During work, velocity sensor detection
The rate signal of breaker roll rotation simultaneously transmits a signal to programmable controller, can when speed interval of the speed less than setting
Programmable controller sends control instruction to frequency converter, and after control motor reversion, being stuck in the circuit board between roller can eject,
Then recover to rotate forward.
3. the recovery process of copper metal in waste and old circuit board according to claim 1 or 2, it is characterised in that：The hot blast
Drying unit includes drying casing, air blower, intake stack, wind pipe and electric heating tube, the air outlet of intake stack and baking
The top surface of dry casing is connected, and air blower is arranged on intake stack, and electric heating tube, which is arranged in drying baker body, is located at blast pipe
The lower section of the air outlet in road, one end of wind pipe are connected with drying the side of casing, and the other end extends to far infrared and added
Hot device front simultaneously makes air outlet face conveyer belt surface.
4. the recovery process of copper metal in waste and old circuit board according to claim 3, it is characterised in that：The hot-air seasoning
The wind pipe of device is provided with two, is separately positioned on the both sides of the drying casing, the caliber of each wind pipe is described
/ 3rd of the caliber of intake stack.
5. the recovery process of copper metal in waste and old circuit board according to claim 3, it is characterised in that：The girt-water separation
Device is made up of charging precipitation bucket, helical axis, helicla flute, support frame and drive device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510743514.0A CN105256142B (en) | 2015-11-05 | 2015-11-05 | The recovery process of copper metal in a kind of waste and old circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510743514.0A CN105256142B (en) | 2015-11-05 | 2015-11-05 | The recovery process of copper metal in a kind of waste and old circuit board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105256142A CN105256142A (en) | 2016-01-20 |
| CN105256142B true CN105256142B (en) | 2017-12-05 |
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ID=55096067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510743514.0A Expired - Fee Related CN105256142B (en) | 2015-11-05 | 2015-11-05 | The recovery process of copper metal in a kind of waste and old circuit board |
Country Status (1)
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| CN (1) | CN105256142B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108016074A (en) * | 2017-12-05 | 2018-05-11 | 安徽旺达铜业发展有限公司 | A kind of retracting device for copper scale |
| CN108327337A (en) * | 2018-04-18 | 2018-07-27 | 黄石博控自动化科技有限公司 | A kind of copper scrap silk sorting packing stacking automation complete set of equipments |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09194959A (en) * | 1996-01-22 | 1997-07-29 | Nissei Kogyo Kk | Printed circuit board processing system |
| CN200943996Y (en) * | 2006-07-25 | 2007-09-05 | 伦浩新 | Infrared and heated air circulation combined drying device |
| CN202010831U (en) * | 2011-01-11 | 2011-10-19 | 烟台绿环再生资源有限公司 | Disassembly, recovery and resource comprehensive processing line for waste printed circuit board |
| CN102228897B (en) * | 2011-05-09 | 2013-05-08 | 清远市进田企业有限公司 | Copper metal recovery method |
| CN103752371A (en) * | 2013-12-27 | 2014-04-30 | 河南圣石节能环保工程有限公司 | Electric-screw-rod-type clearance adjustment crushing machine and control method thereof |
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2015
- 2015-11-05 CN CN201510743514.0A patent/CN105256142B/en not_active Expired - Fee Related
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| CN105256142A (en) | 2016-01-20 |
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Granted publication date: 20171205 Termination date: 20211105 |