CN103028594B - Recycling method and recycling device of waste circuit board - Google Patents
Recycling method and recycling device of waste circuit board Download PDFInfo
- Publication number
- CN103028594B CN103028594B CN201310003383.3A CN201310003383A CN103028594B CN 103028594 B CN103028594 B CN 103028594B CN 201310003383 A CN201310003383 A CN 201310003383A CN 103028594 B CN103028594 B CN 103028594B
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- circuit board
- printed circuit
- waste printed
- retracting device
- helical axis
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
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- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a recycling method and a recycling device of waste circuit boards. The recycling method comprises the following steps: firstly, detaching and separating elements on the waste circuit boards; pouring the sorted waste circuit boards into an extruding machine (4) to be extruded into waste circuit boards of unspecific shapes by the extruding machine (4); pouring the waste circuit boards of unspecific shapes into a ball mill (6) to be grinded into powder; pouring the powder into a sedimentation tank, so that most non-metal floats on the water surface and is removed; and feeding the sediment in the sedimentation tank into a hydraulic power shaker so as to separate the nonmetal and various metals. The device comprises a crushing device, the sedimentation tank and the hydraulic power shaker, wherein the crushing device consists of a sorting platform (1) with a conveyer belt, the extruding machine (4) and the ball mill (6), wherein the sorting platform (1) with the conveyer belt is connected with a feeding hopper (3) of the extruding machine (4) through a material tank (2); the extruding machine (4) is connected with the ball mill (6) through a belt conveyer (5); the ball mill (6) is connected with a material cabin through a lifter; the material cabin is communicated with the sedimentation tank through a pipeline; the sedimentation tank is connected with the material cabin through the lifter; and the material cabin is connected with the hydraulic power shaker through the pipeline.
Description
Technical field
The present invention relates to a kind of recovery method of waste printed circuit board, the invention still further relates to the retracting device of waste printed circuit board.
Background technology
Chinese patent CN1229008A discloses a kind of like this method being reclaimed valuable substance by printed circuit board (PCB), comprise the following steps: one. the not waste printed circuit board of given shape and size is dropped into a high speed and turns in cutting machine, this high speed turns cutting machine inside and is provided with most the fixed cutting tools and a rotary cutter made with wolfram steel material, each fixed cutting tool is arranged on around this rotary cutter, make this circuit board moment can be formed particle by shredding continuously, this particle utilizes the multi-level oscillatory type strainer filtering turning at a high speed cutting machine outlet at bottom place and arrange; Two. deliver in a high speed disintegrator by this particle by a conveyer belt, this high speed disintegrator inside is provided with the same knife plate turned to this rotary cutter, makes this particle form the thinner pulverizing grain sheet of particle; Three. this pulverizing grain sheet is delivered to an impact crusher inside and thumps, its internal structure is destroyed, and forms thin flat bar; Four. delivered to by this thin flat bar in an efflorescence machine, this efflorescence machine inside comprises most group horizontally set and the rolling wheels of longitudinal arrangement, and makes this thin flat bar form powder sheet material via after this rolling wheels roll extrusion efflorescence; Five. this powder sheet material is added water and inserts in a flour mill and wears into fine-powdered, utilize current and centrifugal force to derive the powder ground; Six. above-mentioned current and powder are imported in a tank, on nonmetallic substance in this powder can be bubbled through the water column, by this nonmetallic substance collect after utilize centrifugal dehydration, recycling drying machine is dry make an uproar after, resin in this nonmetallic substance can be vaporized, and all the other are then the glass fibre of recoverable; Seven. after the metal object value being sunken to this bottom of gullet being concentrated, via an electric smelting furnace heating, the height according to fusing point isolates different metal species, then cools through normal temperature.Turn cutting machine, high speed disintegrator, impact crusher, efflorescence machine and flour mill at a high speed owing to the process employs, thus add operation and cost, again because the fine powder after flour mill grinding is comparatively thick, its rate of recovery only can reach 90%.
Summary of the invention
The object of this invention is to provide one and can reduce operation and cost, recovery method and the device thereof of the waste printed circuit board of the rate of recovery can be improved again.
For achieving the above object, the recovery method of a kind of waste printed circuit board of the present invention, comprises the following steps:
1.. go-no-go: first the element on waste printed circuit board is carried out disassembling separation;
2.. extruding: the waste printed circuit board caused not of uniform size after go-no-go is dropped in extruder, by extruder, waste printed circuit board is squeezed into the waste printed circuit board of various not given shape;
3.. grinding: the waste printed circuit board of various not given shape is dropped in ball mill, the waste printed circuit board of various not given shape is clayed into power;
4.. roughly select: above-mentioned powder is dropped in water circulation sedimentation basin, makes most of plastics, epoxy resin, glass fibre swim in the water surface and remove;
5.. carefully select: the sediment in water circulation sedimentation basin is put in waterpower shaking table, isolates plastics, epoxy resin, glass fibre, graphite and various metal.
By described extruder, waste printed circuit board crimp is become the waste printed circuit board in various not given shape do not disconnected, be convenient to ball mill grinding.
A kind of retracting device of waste printed circuit board, comprise reducing mechanism, water circulation sedimentation basin and waterpower shaking table, described reducing mechanism forms by with the go-no-go platform of conveyer belt, extruder and ball mill, go-no-go platform with conveyer belt is connected with extruder feed hopper by hopper, extruder discharging opening is connected with feed inlet of globe mill by belt conveyor, ball mill discharging mouth is connected with feed bin by elevator, feed bin is communicated with water circulation sedimentation basin by pipeline, water circulation sedimentation basin is connected with feed bin by elevator, and feed bin is connected with waterpower shaking table by pipeline.
Described extruder is made up of motor, gearbox, support, feed hopper, helical axis and squeezing thorax, motor and gearbox are arranged on support, squeezing thorax one end and gearbox connect and compose cantilever-shaped, helical axis is placed in and squeezes in thorax, helical axis one end is connected with output shaft of gear-box, and feed hopper is placed in and squeezes on thorax and communicate with squeezing thorax inner chamber.
Described squeezing thorax has the groove being convenient to material toggling together, the external world is communicated with squeezing thorax inner chamber.
Described helical axis outer surface is 1.5 ~ 2.5 ㎝ with the distance of squeezing thorax inner surface.
The root diameter of described helical axis near gearbox one end is less than the root diameter of helical axis near discharging opening one end.
Described ball mill inner chamber is arranged to leading portion and back segment, between leading portion and back segment, is provided with screen cloth, near discharging opening one end, screen cloth is installed at back segment, in leading portion, be placed with several big steel ball, in back segment, be placed with several small ball and the forging of multiple steel.
The diameter of described big steel ball is 8 ~ 9 ㎝; The diameter of described small ball is 3.8 ~ 4.2 ㎝; Described steel forging is in round shape, and its length is 25 ~ 35 ㎝, and its top diameter is 2.5 ㎝, and its diameter at butt end is 3.5 ㎝.
Described screen cloth is 80 ~ 100 orders.
After adopting this structure, because waste printed circuit board to be squeezed into the waste printed circuit board of various not given shape by extruder, steel ball again in ball mill and steel forging roll grinding, waste printed circuit board is made to become 80 ~ 100 object powder, greatly be conducive to decomposition and the extraction of operation below, show through actual measurement, the rate of recovery reaches 100%, thus reach and can reduce operation and cost, the object of the rate of recovery can be improved again.
accompanying drawing explanationbelow in conjunction with drawings and Examples, the present invention is described in further detail.
Accompanying drawing 1 is the process chart of the recovery method of a kind of waste printed circuit board of the present invention.
Accompanying drawing 2 is schematic front view of the reducing mechanism in the retracting device of a kind of waste printed circuit board of the present invention.
Accompanying drawing 3 is main cross-sectional schematic of the extruder in the retracting device of a kind of waste printed circuit board of the present invention.
Accompanying drawing 4 is that schematic diagram is looked on a left side for accompanying drawing 3.
In figure: 1. go-no-go platform 2. hopper 3. feed hopper 4. extruder 5. belt conveyor 6. ball mill 7. with conveyer belt squeezes thorax 8. helical axis 9. gearbox 10. support.
detailed description of the inventionshown in accompanying drawing 1, accompanying drawing 2,1. the recovery method of a kind of waste printed circuit board of the present invention, comprise the following steps:. go-no-go: first the element on waste printed circuit board is carried out disassembling separation, 2.. extruding: the waste printed circuit board caused not of uniform size after go-no-go is dropped in extruder 4, by extruder 4, waste printed circuit board is squeezed into the waste printed circuit board of various not given shape, 3.. grinding: the waste printed circuit board of various not given shape is dropped in ball mill 6, the waste printed circuit board of various not given shape is clayed into power, 4.. roughly select: above-mentioned powder is dropped in water circulation sedimentation basin, makes most of plastics, epoxy resin, glass fibre swim in the water surface and remove, 5.. carefully select: the sediment in water circulation sedimentation basin is put in waterpower shaking table, isolates plastics, epoxy resin, glass fibre, graphite and various metal, by described extruder 4, waste printed circuit board crimp is become the waste printed circuit board in various not given shape do not disconnected, be convenient to ball mill 6 and grind, a kind of retracting device of waste printed circuit board, comprise reducing mechanism, water circulation sedimentation basin and waterpower shaking table, described reducing mechanism is by the go-no-go platform 1 with conveyer belt, extruder 4 and ball mill 6 form, go-no-go platform 1 with conveyer belt is connected with extruder 4 feed hopper 3 by hopper 2, extruder 4 discharging opening is connected with ball mill 6 charging aperture by belt conveyor 5, ball mill 6 discharging opening is connected with feed bin by elevator, feed bin is communicated with water circulation sedimentation basin by pipeline, water circulation sedimentation basin is connected with feed bin by elevator, feed bin is connected with waterpower shaking table by pipeline, described extruder 4 shown in accompanying drawing 3, accompanying drawing 4 is made up of motor, gearbox 9, support 10, feed hopper 3, helical axis 8 and squeezing thorax 7, motor and gearbox 9 are arranged on support 10, squeezing thorax 7 one end and gearbox 9 connect and compose cantilever-shaped, helical axis 8 is placed in and squeezes in thorax 7, helical axis 8 one end is connected with gearbox 9 output shaft, and feed hopper 3 is placed in and squeezes on thorax 7 and communicate with squeezing thorax 7 inner chamber, described squeezing thorax 7 has the groove being convenient to material toggling together, the external world is communicated with squeezing thorax 7 inner chamber, described helical axis 8 outer surface is 1.5 ~ 2.5 ㎝ with the distance of squeezing thorax 7 inner surface, the root diameter of described helical axis 8 near gearbox 9 one end is less than the root diameter of helical axis 8 near discharging opening one end, described ball mill 6 inner chamber is arranged to leading portion and back segment, between leading portion and back segment, is provided with screen cloth, near discharging opening one end, screen cloth is installed at back segment, in leading portion, be placed with several big steel ball, in back segment, be placed with several small ball and the forging of multiple steel, the diameter of described big steel ball is 8 ~ 9 ㎝, the diameter of described small ball is 3.8 ~ 4.2 ㎝, described steel forging is in round shape, and its length is 25 ~ 35 ㎝, and its top diameter is 2.5 ㎝, and its diameter at butt end is 3.5 ㎝, described screen cloth is 80 ~ 100 orders.
Claims (2)
1. the retracting device of a waste printed circuit board, comprise reducing mechanism, water circulation sedimentation basin and waterpower shaking table, described reducing mechanism is by the go-no-go platform with conveyer belt, extruder and ball mill composition, go-no-go platform with conveyer belt is connected with extruder feed hopper by hopper, extruder discharging opening is connected with feed inlet of globe mill by belt conveyor, ball mill discharging mouth is connected with feed bin by elevator, feed bin is communicated with water circulation sedimentation basin by pipeline, water circulation sedimentation basin is connected with feed bin by elevator, feed bin is connected with waterpower shaking table by pipeline, it is characterized in that: described extruder (4) is by motor, gearbox (9), support (10), feed hopper (3), helical axis (8) and squeezing thorax (7) composition, motor and gearbox (9) are arranged on support (10), squeezing thorax (7) one end and gearbox (9) connect and compose cantilever-shaped, helical axis (8) is placed in and squeezes in thorax (7), helical axis (8) one end is connected with gearbox (9) output shaft, feed hopper (3) is placed in and squeezes on thorax (7) and communicate with squeezing thorax (7) inner chamber.
2. the retracting device of a kind of waste printed circuit board according to claim 1, is characterized in that: on described squeezing thorax (7), have the groove being convenient to material toggling together, and the external world is communicated with squeezing thorax (7) inner chamber.
3. the retracting device of a kind of waste printed circuit board according to claim 1, is characterized in that: described helical axis (8) outer surface is 1.5 ~ 2.5 ㎝ with the distance of squeezing thorax (7) inner surface.
4. the retracting device of a kind of waste printed circuit board according to claim 1, is characterized in that: the root diameter of described helical axis (8) near gearbox (9) one end is less than the root diameter of helical axis (8) near discharging opening one end.
5. the retracting device of a kind of waste printed circuit board according to claim 1, it is characterized in that: described ball mill (6) inner chamber is arranged to leading portion and back segment, screen cloth is provided with between leading portion and back segment, near discharging opening one end, screen cloth is installed at back segment, in leading portion, be placed with several big steel ball, in back segment, be placed with several small ball and the forging of multiple steel.
6. the retracting device of a kind of waste printed circuit board according to claim 5, is characterized in that: the diameter of described big steel ball is 8 ~ 9 ㎝; The diameter of described small ball is 3.8 ~ 4.2 ㎝; Described steel forging is in round shape, and its length is 25 ~ 35 ㎝, and its top diameter is 2.5 ㎝, and its diameter at butt end is 3.5 ㎝.
7. the retracting device of a kind of waste printed circuit board according to claim 5, is characterized in that: described screen cloth is 80 ~ 100 orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310003383.3A CN103028594B (en) | 2013-01-06 | 2013-01-06 | Recycling method and recycling device of waste circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310003383.3A CN103028594B (en) | 2013-01-06 | 2013-01-06 | Recycling method and recycling device of waste circuit board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103028594A CN103028594A (en) | 2013-04-10 |
| CN103028594B true CN103028594B (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310003383.3A Expired - Fee Related CN103028594B (en) | 2013-01-06 | 2013-01-06 | Recycling method and recycling device of waste circuit board |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105032562B (en) * | 2015-06-17 | 2017-12-26 | 六盘水师范学院 | A kind of method of quick separating waste and old circuit board metal and plastics |
| CN106733070A (en) * | 2016-11-16 | 2017-05-31 | 巨石集团有限公司 | The production method and grinding mechanism of a kind of milled glass fiber |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3369234B2 (en) * | 1992-12-10 | 2003-01-20 | 同和鉱業株式会社 | Method for separating and recovering valuable resources from composite materials |
| CN1229008A (en) * | 1998-03-12 | 1999-09-22 | 王文彬 | Method for retrieving valuable material from printed circuit board |
| CN1120053C (en) * | 1999-03-10 | 2003-09-03 | 沈志刚 | Process for breaking, separating and recovering waste printed circuit board and apparatus thereof |
| CN101352719A (en) * | 2008-08-28 | 2009-01-28 | 巨锋 | Recovery technique of waste circuit board |
| CN101474675B (en) * | 2009-01-19 | 2011-01-05 | 深圳市格林美高新技术股份有限公司 | Method for recycle of copper alloy from waste circuit board and cyclic reconstruction of powder metallurgical product as well as device system thereof |
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2013
- 2013-01-06 CN CN201310003383.3A patent/CN103028594B/en not_active Expired - Fee Related
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| CN103028594A (en) | 2013-04-10 |
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