CN103484681A - Waste circuit board metal recovering device based on high-frequency induction heating principle - Google Patents
Waste circuit board metal recovering device based on high-frequency induction heating principle Download PDFInfo
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- CN103484681A CN103484681A CN201310501887.8A CN201310501887A CN103484681A CN 103484681 A CN103484681 A CN 103484681A CN 201310501887 A CN201310501887 A CN 201310501887A CN 103484681 A CN103484681 A CN 103484681A
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- crucible
- metal
- induction heating
- frequency induction
- circuit board
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- Processing Of Solid Wastes (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Abstract
The invention relates to a waste circuit board metal recovering method and a recovering device based on the high frequency induction heating principle. The recovering method comprises the steps that a crucible is driven to rotate by an electric motor; an induction coil is electrified, the waste circuit board fragment metal in the crucible is heated under the action of electromagnetic induction, the metal under a rotation state clings to the inner wall of the crucible, and the metal shows a molten state after achieving a melting point; the metal under centrifugal force enters a cavity between the crucible and another crucible, then flows into a material collection bottle along the inner wall of the cavity, and finally is cooled by a device.
Description
Technical field
The present invention relates to a kind of useless circuit card apparatus for recovering metal based on the high-frequency induction heating principle.
Background technology
Existing useless circuit card metal recovery processes is mainly mechanical-physical absorption method and hydrometallurgical at present.The non-the finished product of the product that the mechanical-physical absorption method obtains, also will separate, refining again, and efficiency is low; Hydrometallurgy exists cost high, and consumption of chemical agent is large, and leach liquor and residue have corrodibility and toxicity, be difficult to reclaim all metals, and contaminate environment, the critical defects such as harm health of human body.
Summary of the invention
The purpose of this invention is to provide a kind of useless circuit card metal recovery processes based on high-frequency induction heating, to overcome at present existing method above shortcomings.
The objective of the invention is to be achieved through the following technical solutions:
After electric motor drives crucible (12) rotation, ruhmkorff coil (1) energising, metal in crucible (12) on useless circuit card fragment (13) is responded to heating under the electromagnetic induction effect, and be close to crucible (12) inwall under rotating state, make heats more remarkable, metal is molten state after reaching fusing point.The metal of molten state is entered in the cavity between crucible (2) and crucible (12) by centrifugal force, along cavity inner wall, flows in collection thing bottle (3), cooling through refrigerating unit (4).
The described a kind of useless circuit card apparatus for recovering metal based on high-frequency induction heating of the embodiment of the present invention, comprise the high-frequency induction heating power with ruhmkorff coil (1), ruhmkorff coil (1) is around crucible (2), and crucible (2) left side connects the PID temperature controller.Crucible (2) right side connects gas recycle pump and vacuum pump.Crucible (2) downside bore connects collection thing bottle (3), and stopping valve (11) is arranged on bore, the outer refrigerating unit (4) of laying of collection thing bottle (3).Crucible (12) sidewall and bottom have hole (5), and the axle (7) on crucible cover (6) is connected with electric motor, by electric motor, rotate and drive crucible (12) rotation.
Further, the axle (7) on described crucible cover (6) and crucible cover (8) contact part (9) tight seal; Crucible during work (2) and crucible cover (8), crucible (12) and crucible cover (6) tight seal, collection thing bottle (3) is detachable with crucible pipeline (10), tight seal during work; Hole (5) diameter of crucible (12) sidewall and bottom surface is less than the size that shatters rear useless circuit card fragment (13).
Beneficial effect of the present invention is:
1. energy-efficient, metal self produces heat in magnetic field, belongs to direct-fired mode, need not carry out heat transmission by heat-transfer medium, save energy, and realize rapid heating.
2. be easy to realize that metal separates with nonmetallic, rotation along with electric motor, useless circuit card fragment (13) is along with crucible (12) rotation, metal on it is after reaching self fusing point, melted by heat becomes molten state, move in the cavity between crucible (12) and crucible (2), and the non-metallic material on useless circuit card fragment (13) are thermoset, be heated and can not soften, distortion, the fusing of metal is separated out without impact, and still stay in crucible (12), keep one period heat-up time, can make this kind of metal all separate out, realized that metal effectively fully separates with nonmetallic.
3. environmental pollution is little, has avoided in the past in hydrometallurgy the chemical consumption amount large, and medicament and residue have corrodibility and toxicity, the big for environment pollution and healthy wretched insufficiency that is harmful to health.Method of the present invention is not used corrodibility and toxicity article as auxiliary, has both reduced pollution, has improved operator's Working environment yet, is beneficial to physical and mental health.
4. step is accurate, easy to operate, under the control of PID temperature controller, and tin, silver, gold, by fusing point, order from low to high is precipitated, separates, extracts the metals such as copper successively, can have a clear understanding of the metal recovery progress by observation.
5. use safety, easy to maintenance, useless circuit card fragment (13) is positioned at crucible (12) and is heated, and refrigerating unit (4) is arranged outside collection thing bottle (3), metal is operated personnel's contact at lower temperature, temprature control unit, metal recovery part, cooling segment organically are combined togather, convenient operation and maintenance.
The accompanying drawing explanation
Below with reference to the accompanying drawings the present invention is described in further detail.
Fig. 1 is the schematic diagram of the described useless circuit card metal recovery processes based on the high-frequency induction heating principle of the embodiment of the present invention.
Fig. 2 is that in Fig. 1, electric motor drives the schematic diagram in crucible (12) rotation situation.
Fig. 3 is the axonometric drawing of crucible in Fig. 1 (12).
In figure:
1, ruhmkorff coil; 2, crucible; 3, collection thing bottle; 4, refrigerating unit; 5, crucible hole; 6, crucible cover; 7, axle; 8, crucible cover; 9, the contact part of axle and crucible cover 8; 10, crucible pipeline; 11, stopping valve; 12, crucible; 13, useless circuit card fragment.
Embodiment
As Figure 1-3, the described a kind of useless circuit card apparatus for recovering metal based on high-frequency induction heating of the embodiment of the present invention, after electric motor drives crucible (12) rotation, ruhmkorff coil (1) energising, metal in crucible (12) on useless circuit card fragment (13) is responded to heating under the electromagnetic induction effect, and be close to crucible (12) inwall under rotating state, and make heats more remarkable, metal is molten state after reaching fusing point.The metal of molten state is entered in the cavity between crucible (2) and crucible (12) by centrifugal force, along cavity inner wall, flows in collection thing bottle (3), cooling through refrigerating unit (4).The described a kind of useless circuit card apparatus for recovering metal based on high-frequency induction heating of the embodiment of the present invention, comprise the high-frequency induction heating power with ruhmkorff coil (1), described ruhmkorff coil (1) is round crucible (2), and crucible (2) left side connects the PID temperature controller.Crucible (2) right side connects gas recycle pump and vacuum pump.Crucible (2) downside bore connects collection thing bottle (3), and stopping valve (11) is arranged on bore, the outer refrigerating unit (4) of laying of collection thing bottle (3).Crucible (12) sidewall and bottom have hole (5), are placed with the useless circuit card fragment (13) after disassembling, shattering in crucible (12), and the axle (7) on crucible cover (6) is connected with electric motor.The axle (7) of crucible cover (6) and part (9) tight seal contacted on crucible cover (8); Crucible cover during work (6) and crucible (12), crucible cover (8) and crucible (2) tight seal; Collection thing bottle (3) is detachable with crucible pipeline (10), tight seal during work; Hole (5) diameter of crucible (12) sidewall and bottom surface is less than the size of useless circuit card fragment (13).
The present invention organically is combined as a whole PID temprature control unit, metal recovery part, cooling segment.Electric motor drives crucible (12) and is rotated, the PID temperature controller is monitored the temperature of the interior metal of crucible (12) in real time, after temperature rises to the fusing point of a certain metal, the high-frequency induction heating apparatus parameter change, keep interior the homo(io)thermism of crucible (12), this kind of metal that makes to be subject to centrifugal force fully separated out, collection and cooling, then by the interior temperature rising of crucible (12), the metal of next fusing point is separated out in preparation, successively circulation.
During concrete operations: 1. the useless circuit card fragment (13) after disassembling, pulverizing is put into to crucible (12), each several part is installed.
2. open stopping valve (11), vacuum pump, device is evacuated, close vacuum pump, open gas recycle pump, with residual impurity gas in high purity rare gas element removal device.
3. open high-frequency induction heating power, motor, PID temperature controller, refrigerating unit (4), after electric motor drives crucible (12) rotation, the useless circuit card fragment (13) that is rotating state is close to crucible (12) inwall, strengthens heats.Heating temperature is controlled, when temperature reaches the fusing point of the upper minimum melting point metals tin of useless circuit card (13), high frequency induction power supply is controlled the homo(io)thermism in crucible (12), make tin element melt fully, separate, separated out by centrifugal force, entered in the cavity between crucible (12) and crucible (2) by centrifugal action, enter in collection thing bottle (3) along cavity inner wall, collected outer refrigerating unit (4) cooling curing of thing bottle (3).
4. after for some time, close stopping valve (11), take off collection thing bottle (3).
5. change new collection thing bottle (3), open stopping valve (11), repeating step 1, to step 3, carries out the recovery of the metal of next fusing point.Thus, by metal by fusing point order from low to high melt successively, separate, separate out, collection and cooling.
The present invention is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present invention; though but do any variation on its shape or structure, every have a same or analogous technical scheme with the application, within all dropping on protection scope of the present invention.
Claims (1)
1. the useless circuit card apparatus for recovering metal based on the high-frequency induction heating principle is characterized in that: ruhmkorff coil (1) is round crucible (2), and crucible (2) left side connects the PID temperature controller; Crucible (2) right side connects gas recycle pump and vacuum pump; Crucible (2) downside bore connects collection thing bottle (3), and stopping valve (11) is arranged on bore, and collection thing bottle (3) is outer lays refrigerating unit (4), and crucible (12) sidewall and bottom have hole (5), and the axle (7) on crucible cover (6) is connected with electric motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310501887.8A CN103484681A (en) | 2013-10-23 | 2013-10-23 | Waste circuit board metal recovering device based on high-frequency induction heating principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310501887.8A CN103484681A (en) | 2013-10-23 | 2013-10-23 | Waste circuit board metal recovering device based on high-frequency induction heating principle |
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| Publication Number | Publication Date |
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| CN103484681A true CN103484681A (en) | 2014-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310501887.8A Pending CN103484681A (en) | 2013-10-23 | 2013-10-23 | Waste circuit board metal recovering device based on high-frequency induction heating principle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567401A (en) * | 2015-01-09 | 2015-04-29 | 上海交通大学 | Melt medium-frequency induction and high-temperature heating device |
| CN106702164A (en) * | 2017-01-05 | 2017-05-24 | 北京科技大学 | Method and device of recovering valuable metals in steps from waste electronic circuit board particles |
| CN107567505A (en) * | 2015-02-12 | 2018-01-09 | 伊克有限责任公司 | For separating and reclaiming the device and method of alloy, the particularly component of precious metal alloys |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101935760A (en) * | 2009-06-29 | 2011-01-05 | 上海奇谋能源技术开发有限公司 | Method for recovering pop cans by using vacuum furnace |
| CN102500858A (en) * | 2011-10-28 | 2012-06-20 | 北京工业大学 | System for separating electronic component in waste and old circuit board by utilizing high-frequency induction heating and method |
| CN203498445U (en) * | 2013-10-23 | 2014-03-26 | 吉林大学 | Waste circuit board metal recycling device based on high-frequency induction heating principle |
-
2013
- 2013-10-23 CN CN201310501887.8A patent/CN103484681A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935760A (en) * | 2009-06-29 | 2011-01-05 | 上海奇谋能源技术开发有限公司 | Method for recovering pop cans by using vacuum furnace |
| CN102500858A (en) * | 2011-10-28 | 2012-06-20 | 北京工业大学 | System for separating electronic component in waste and old circuit board by utilizing high-frequency induction heating and method |
| CN203498445U (en) * | 2013-10-23 | 2014-03-26 | 吉林大学 | Waste circuit board metal recycling device based on high-frequency induction heating principle |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567401A (en) * | 2015-01-09 | 2015-04-29 | 上海交通大学 | Melt medium-frequency induction and high-temperature heating device |
| CN107567505A (en) * | 2015-02-12 | 2018-01-09 | 伊克有限责任公司 | For separating and reclaiming the device and method of alloy, the particularly component of precious metal alloys |
| US10550449B2 (en) | 2015-02-12 | 2020-02-04 | Ikoi S.P.A. | Apparatus and process for separating and recovering the components of an alloy, particularly a noble alloy |
| US11427885B2 (en) | 2015-02-12 | 2022-08-30 | Ikoi S.P.A. | Apparatus and process for separating and recovering the components of an alloy, particularly a noble alloy |
| CN106702164A (en) * | 2017-01-05 | 2017-05-24 | 北京科技大学 | Method and device of recovering valuable metals in steps from waste electronic circuit board particles |
| CN106702164B (en) * | 2017-01-05 | 2019-01-01 | 北京科技大学 | Recycle the method and device of valuable metal step by step from waste electronic wiring board particle |
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Application publication date: 20140101 |