CN107322833A - The reclaimer and recovery method of a kind of old circuit board - Google Patents
The reclaimer and recovery method of a kind of old circuit board Download PDFInfo
- Publication number
- CN107322833A CN107322833A CN201710690601.3A CN201710690601A CN107322833A CN 107322833 A CN107322833 A CN 107322833A CN 201710690601 A CN201710690601 A CN 201710690601A CN 107322833 A CN107322833 A CN 107322833A
- Authority
- CN
- China
- Prior art keywords
- circuit board
- broken
- old circuit
- reclaimer
- broken material
- Prior art date
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- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000011084 recovery Methods 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 42
- 239000011521 glass Substances 0.000 claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 239000002245 particle Substances 0.000 claims abstract description 16
- 238000005520 cutting process Methods 0.000 claims abstract description 11
- 238000007599 discharging Methods 0.000 claims abstract description 10
- 239000002699 waste material Substances 0.000 claims abstract description 10
- 230000008520 organization Effects 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 238000005453 pelletization Methods 0.000 claims abstract description 5
- 239000011347 resin Substances 0.000 claims description 24
- 229920005989 resin Polymers 0.000 claims description 24
- 239000000835 fiber Substances 0.000 claims description 22
- 239000004033 plastic Substances 0.000 claims description 14
- 229920003023 plastic Polymers 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000007731 hot pressing Methods 0.000 claims description 3
- 239000013612 plasmid Substances 0.000 claims description 3
- 238000004064 recycling Methods 0.000 abstract description 3
- 239000012634 fragment Substances 0.000 description 3
- 238000009527 percussion Methods 0.000 description 3
- 230000009514 concussion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 210000000515 tooth Anatomy 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
- B29B2017/0213—Specific separating techniques
- B29B2017/0268—Separation of metals
- B29B2017/0272—Magnetic separation
-
- 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
- Y02W30/62—Plastics recycling; Rubber recycling
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a kind of reclaimer of old circuit board and recovery method, it is related to E-Waste recycling technical field.The reclaimer and recovery method of the old circuit board include：Crushing mechanism, including for broken worn-out wiring board, one end is the charging aperture for delivering old circuit board, the other end is the discharging opening for flowing out broken material；Sorting mechanism, just accepts broken material to discharging opening and broken material is transported into next station, and electromagnet is provided with along the transport path of broken material；Mixed organization, including for accepting the dog-house for the material for removing metal, dog-house connects mixing chamber, and the outlet of mixing chamber is located on die head；Granulating mechanism, includes the cutting knife and the pelletizing motor of driving cutting knife motion of intermittent inswept outlet.The present invention, which to old circuit board can reclaim, is made the glass that can be re-used modeling hybrid particles.
Description
Technical field
The present invention relates to E-Waste recycling field, the reclaimer of more particularly to a kind of old circuit board and recovery side
Method.
Background technology
China is solves the problem of environmental pollution as caused by waste electric products being on the rise, and State Council was in 2009 2
The moon has promulgated the 551st command on 25th《Waste electrical and electronic equipment recycles management rules》, the regulations will be January 1 in 2011
Rise day and implement.But, the country does not build up a set of since being disassembled electron wastes, to be applied to all waste thing life also
Producing line (including equipment and technology), particularly old circuit board are after the metals such as pulverized recovery metallic copper, remaining resin ring
Fine powder is arbitrarily abandoned.
Glass modeling hybrid particles are can be made into after resin circular fiber power and plastics, hardening agent mixing.This glass modeling hybrid particles can use
Glass in manufacture floor moulds layer.
The content of the invention
The technical problems to be solved by the invention are the recyclings of waste electric products, overcome lacking for prior art
Point can carry out recovery to old circuit board and the glass that can be re-used modeling is made there is provided a kind of reclaimer of old circuit board
Hybrid particles.
In order to solve the above technical problems, the present invention provides a kind of reclaimer of old circuit board, including
Crushing mechanism, including for broken worn-out wiring board, one end is the charging aperture for delivering old circuit board, and the other end is
Discharging opening for flowing out broken material；
Sorting mechanism, just accepts broken material to discharging opening and broken material is transported into next station, along the fortune of broken material
Path is sent to be provided with electromagnet；
Mixed organization, including for accepting the dog-house for the material for removing metal, dog-house connection mixing chamber, the outlet of mixing chamber
It is located on die head；
Granulating mechanism, includes the cutting knife and the pelletizing motor of driving cutting knife motion of intermittent inswept outlet.
Technique effect：Wiring board by crushing mechanism become particle diameter be no more than 80 mesh broken material, broken material into
It is divided into metal pieces and resin circular fiber fragment i.e. resin circular fiber power, is then carried into mixed organization by sorting mechanism,
Metal pieces absorption makes resin circular fiber power enter mixed organization on electromagnet during transport.
Plastics and hardening agent are added at the dog-house of mixed organization, makes plastics, hardening agent, resin circular fiber power in mixing chamber
It is interior to be sufficiently mixed.Mixed organization is that three is stirred provided with screw rod in the screw extruder bought on the market, mixing chamber
Mix, be additionally provided with heater and mixing temperature is regulated and controled.
The outlet of mixing chamber is located on die head so that the glass modeling compound being mixed to prepare is extruded with the shape set.It is logical
Normal outlet causes glass to mould for circle, and compound is cylindrical to be extruded.
Granulating mechanism is located at exit, and includes the cutting knife of intermittent inswept outlet, and cutting knife is by the cylinder of lasting extrusion
The glass modeling compound of shape cuts into particle dress, obtains glass modeling hybrid particles.
The technical scheme that further limits of the present invention is：
Further, crushing mechanism includes slitting room and the crushing chamber vertically set gradually.
A kind of reclaimer of preceding described old circuit board, slitting room includes constituting between two hired roughnecks, two hired roughnecks
The passage passed through for old circuit board, passage connection crushing chamber, is squeezed into some when old circuit board is by passage by hired roughneck
Strip piece.
A kind of reclaimer of preceding described old circuit board, the rotation direction of two hired roughnecks is opposite.
A kind of reclaimer of preceding described old circuit board, crushing chamber includes symmetrically arranged two broken mills, and two break
Constitute the broken space of communicating passage between comminution disk, it is close to each other or make away from motion that two broken mills are controlled by disruption elements
Broken space becomes big or diminished.
A kind of reclaimer of preceding described old circuit board, the rotation direction of two broken mills is opposite.
A kind of reclaimer of preceding described old circuit board, crushes mill by broken shaft and broken motor connection, breaks
Broken room is provided with the open-work passed through for broken shaft, and broken motor is located at broken outdoor and is fixed on slide plate, and slide plate is controlled by gas
Cylinder is moved closer or far from crushing chamber.
The second object of the present invention is to provide a kind of recovery method of old circuit board, comprised the following steps：
S1, waste and old circuit board is broken into the broken material that particle diameter is no more than 80 mesh；
S2, the metalliferous material being separated off by magnetic field in broken material obtain resin circular fiber power；
S3, resin circular fiber power and hardening agent and plastics are mixed to get to glass modeling compound, the quality of three's mixing accounts for gross mass
Ratio is plastics 35%~50%, hardening agent no less than 15%, remaining as resin circular fiber power；
S4, by glass modeling mixed material heating plasmid obtain glass modeling hybrid particles；
S5, glass plastic art ware obtained by modes such as hot pressing, extrusion moldings.
A kind of recovery method of preceding described old circuit board, the resin circular fiber power obtained to S2, which air-dry, makes resin ring
The moisture content of fine powder is no more than 6%.
The third object of the present invention is to provide a kind of composite floor board, including with the recovery method of above-mentioned old circuit board
The glass modeling layer being made.
The beneficial effects of the invention are as follows：
（1）The glass modeling hybrid particles that reclaimer of the invention through old circuit board is obtained, can be directly placed into extruder, injection
Machine etc., carries out the glass plastic art ware that plastotype is needed；
（2）Carrying out drying to broken material in the recovery method of old circuit board in the present invention makes obtained resin circular fiber power aqueous
Rate is no more than 6%；
（3）Broken material is shakeout on a moving belt with club in the reclaimer of old circuit board in the present invention, and shaken
Swing percussion so that the clipped wire in broken material is more easy to be sucked out.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the sectional view of internal structure of the present invention；
Fig. 3 is the schematic diagram for representing crushing mechanism structure；
Fig. 4 is the sectional view for representing crushing mechanism；
Wherein：1- crushing mechanisms；11- cuts room；111- hired roughneck；112- ratchets；12- crushing chambers；121- crushes mill；122- is broken
Broken axle；123- crushes motor；124- cylinders；125- slide plates；126- supporting plates；2- sorting mechanisms；21- conveyer belts；22- electromagnet；
3- mixed organizations；31- dog-houses；32- mixing chambers；33- screw rods；34- die heads；35- is exported；4- granulating mechanisms；41- cutting knifes；42-
Pelletizing motor.
Embodiment
Embodiment 1
A kind of reclaimer for old circuit board that the present embodiment is provided, structure is as Figure 1-4.
As shown in figure 1, the reclaimer of the old circuit board, including the crushing mechanism 1, sorting mechanism 2, mixed set gradually
Close mechanism 3 and granulating mechanism 4.
Wherein, crushing mechanism 1 includes slitting room 11 and the crushing chamber 12 that vertical direction is set.The discharging of the lower section of crushing chamber 12
Mouth is just to conveyer belt 21.The other end of conveyer belt 21 extends to the top of dog-house 31, and the top of conveyer belt 21 is provided with electromagnet 22.
Dog-house 31 connects mixing chamber 32, and the other end of mixing chamber 32 is provided with dismountable die head 34.Die head 34 is provided with out
Mouth 35.
Cutting knife 41 is controlled by pelletizing motor 42 and intermittent inswept outlet.
As shown in figure 3, old circuit board is put into from the top of slitting room 11, against logical between two hired roughnecks 111 during input
Road, two hired roughnecks 111 are protruding with some ratchets 112.Two hired roughnecks 111 are controlled by two motors, make the rotation of two hired roughnecks 111
In the opposite direction, extrusion fracture is relatively rotated by two hired roughnecks 111 by the old circuit board between two hired roughnecks 111 and becomes strip piece.
Strip piece falls into crushing chamber 12, and the discharging opening of the bottom of crushing chamber 12 is closed by plate, is opened on the side wall of discharging opening
There is the socket passed through for plate.Strip piece falls on plate, and is accumulated between two broken mills 121.
Wherein crushing chamber 12 overhangs and slide plate 125 is slidably connected on substrate, substrate, and slide plate 125 is controlled by cylinder 124,
Cylinder 124 is fixed on the outer wall of crushing chamber 12.
Broken motor 123 is fixed with slide plate 125, motor 123 is crushed and broken mill 121 is connected by broken shaft 122.
Broken motor 123 drives two broken mills 121 are mutually opposing to rotate, and under the drive of cylinder 124, two crush
The relative motion of mill 121 so that the space between two broken mills 121 is tapered into.It will be deposited between two broken mills 121
Strip piece extruding grind.
After strip piece is ground, plate is extracted out so that the discharging opening of the lower section of crushing chamber 12 is opened, broken material, which falls, to be passed
Send on band 21.
Conveyer belt 21 starts and drives broken material to move right.The top of conveyer belt 21 is provided with electromagnet 22.In fragment
During material is transported, broken material is shakeout on conveyer belt 21 using club, and concussion percussion is carried out to conveyer belt 21,
So that the clipped wire in broken material is more easy to be adsorbed by electromagnet 22.
Broken material is blowed on the side of conveyer belt 21 air-dried wherein it is possible to place blower fan, reduces broken material
Moisture content.
As shown in Fig. 2 the broken material for removing clipped wire is resin circular fiber power, resin circular fiber power is entered by dog-house 31
Mixing chamber 32.
Now, plastics and hardening agent are added into mixing chamber 32.Glass is mixed to get by the stirring of screw rod 33 and moulds compound,
And extruded from the outlet 35 on die head 34.
As shown in figure 1, the glass constantly extruded modeling compound is cut into particle by cutting knife 41.
Wherein, as shown in figure 4, some crushing teeths are distributed with the relative face of two broken mills 121, crushing teeth is broken two
Strip piece is broken into the fragment no more than 80 mesh by mill 121 during relatively rotating break-in.
When drop to the broken material particle diameter on conveyer belt 21 it is larger when, again put into crushing mechanism carry out break process.
Embodiment 2
A kind of recovery method of old circuit board, comprises the following steps：
S1, waste and old circuit board is broken into the broken material that particle diameter is no more than 80 mesh；
S2, the metalliferous material being separated off by magnetic field in broken material obtain resin circular fiber power；
S3, resin circular fiber power and hardening agent and plastics are mixed to get to glass modeling compound, the quality of three's mixing accounts for gross mass
Ratio is plastics 35%~50%, hardening agent no less than 15%, remaining as resin circular fiber power；
S4, by glass modeling mixed material heating plasmid obtain glass modeling hybrid particles；
S5, glass plastic art ware obtained by modes such as hot pressing, extrusion moldings.
Wherein, the resin circular fiber power obtained to S2 air-dry the moisture content for making resin circular fiber power no more than 6%.S2's
Concussion percussion is carried out to broken material in separation process, makes metallic particles be more easy to be sucked away.
Embodiment 3
A kind of composite floor board, including mould layer with glass made from the recovery method of embodiment two.
In addition to the implementation, the present invention can also have other embodiment.All use equivalent substitution or equivalent transformation shape
Into technical scheme, all fall within the protection domain of application claims.
Claims (10)
1. a kind of reclaimer of old circuit board, it is characterised in that：Including
Crushing mechanism（1）, including for broken worn-out wiring board, one end is the charging aperture for delivering old circuit board, another
Hold as the discharging opening for flowing out broken material；
Sorting mechanism（2）, the broken material just is accepted to the discharging opening and the broken material is transported to next station,
Electromagnet is provided with along the transport path of the broken material（22）；
Mixed organization（3）, including for accepting the dog-house for the material for removing metal（31）, the dog-house（31）Connection mixing
Room（32）, mixing chamber（32）Outlet（35）It is located at die head（34）On；
Granulating mechanism（4）, including the intermittent inswept outlet（35）Cutting knife（41）With the driving cutting knife（41）Motion
Pelletizing motor（42）.
2. a kind of reclaimer of old circuit board according to claim 1, it is characterised in that：The crushing mechanism（1）
Including the slitting room vertically set gradually（11）And crushing chamber（12）.
3. a kind of reclaimer of old circuit board according to claim 1, it is characterised in that：The slitting room（11）Bag
Include two hired roughnecks（111）, two hired roughnecks（111）Between constitute the passage passed through for the old circuit board, the passage
Connect the crushing chamber（12）, when the old circuit board is by the passage by the hired roughneck（111）It is squeezed into some
Shape part.
4. a kind of reclaimer of old circuit board according to claim 1, it is characterised in that：Hired roughneck described in two（111）
Rotation direction it is opposite.
5. a kind of reclaimer of old circuit board according to claim 1, it is characterised in that：The crushing chamber（12）Bag
Include symmetrically arranged two broken mills（121）, mill is crushed described in two（121）Between constitute the broken sky of the connection passage
Between, mill is crushed described in two（121）It is controlled by disruption elements close to each other or the broken space is become big or is become away from motion
It is small.
6. a kind of reclaimer of old circuit board according to claim 1, it is characterised in that：Mill is crushed described in two
（121）Rotation direction it is opposite.
7. a kind of reclaimer of old circuit board according to claim 1, it is characterised in that：The broken mill
（121）Pass through broken shaft（122）With broken motor（123）Connection, the crushing chamber（12）It is provided with and supplies the broken shaft（122）
The open-work passed through, the broken motor（123）Positioned at the crushing chamber（12）It is outer and be fixed on slide plate（125）On, the slide plate
（125）It is controlled by cylinder（124）Closer or far from the crushing chamber（12）Motion.
8. a kind of recovery method of old circuit board, it is characterised in that：Comprise the following steps：
S1, waste and old circuit board is broken into the broken material that particle diameter is no more than 80 mesh；
S2, the metalliferous material being separated off by magnetic field in broken material obtain resin circular fiber power；
S3, resin circular fiber power and hardening agent and plastics are mixed to get to glass modeling compound, the quality of three's mixing accounts for gross mass
Ratio is plastics 35%~50%, hardening agent no less than 15%, remaining as resin circular fiber power；
S4, by glass modeling mixed material heating plasmid obtain glass modeling hybrid particles；
S5, glass plastic art ware obtained by modes such as hot pressing, extrusion moldings.
9. a kind of recovery method of old circuit board according to claim 8, it is characterised in that：
The resin circular fiber power obtained to S2 air-dry the moisture content for making resin circular fiber power no more than 6%.
10. a kind of composite floor board, it is characterised in that：Including returning with the old circuit board described in claim 8~9 any one
Glass made from receiving method moulds layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710690601.3A CN107322833B (en) | 2017-08-14 | 2017-08-14 | A kind of reclaimer and recovery method of old circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710690601.3A CN107322833B (en) | 2017-08-14 | 2017-08-14 | A kind of reclaimer and recovery method of old circuit board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107322833A true CN107322833A (en) | 2017-11-07 |
| CN107322833B CN107322833B (en) | 2018-07-17 |
Family
ID=60226037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710690601.3A Active CN107322833B (en) | 2017-08-14 | 2017-08-14 | A kind of reclaimer and recovery method of old circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107322833B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108262338A (en) * | 2018-03-30 | 2018-07-10 | 山东中再生环境服务有限公司 | A kind of pretreatment system for hazardous waste disposal |
| CN108405553A (en) * | 2018-02-09 | 2018-08-17 | 重庆鸿净环保科技开发有限公司 | Wiring board classification retracting device |
| CN109865735A (en) * | 2019-03-21 | 2019-06-11 | 张雨璠 | A kind of waste and old circuit board recyclable device |
| CN113508798A (en) * | 2021-08-09 | 2021-10-19 | 广州隆昇科技有限公司 | Bait feeding device and control method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108405553A (en) * | 2018-02-09 | 2018-08-17 | 重庆鸿净环保科技开发有限公司 | Wiring board classification retracting device |
| CN108262338A (en) * | 2018-03-30 | 2018-07-10 | 山东中再生环境服务有限公司 | A kind of pretreatment system for hazardous waste disposal |
| CN109865735A (en) * | 2019-03-21 | 2019-06-11 | 张雨璠 | A kind of waste and old circuit board recyclable device |
| CN109865735B (en) * | 2019-03-21 | 2020-01-10 | 张雨璠 | Waste circuit board recovery device |
| CN113508798A (en) * | 2021-08-09 | 2021-10-19 | 广州隆昇科技有限公司 | Bait feeding device and control method |
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| CN107322833B (en) | 2018-07-17 |
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