CN1654182A - Preparation equipment for broken worn-out printed circuit board base plate material granules regeneration plate - Google Patents
Preparation equipment for broken worn-out printed circuit board base plate material granules regeneration plate Download PDFInfo
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- CN1654182A CN1654182A CN 200510023787 CN200510023787A CN1654182A CN 1654182 A CN1654182 A CN 1654182A CN 200510023787 CN200510023787 CN 200510023787 CN 200510023787 A CN200510023787 A CN 200510023787A CN 1654182 A CN1654182 A CN 1654182A
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Abstract
The production apparatus of regenerated board with crushed waste printed circuit base board grains as material includes two parts: hydraulic system and heating and forming mold system. The hydraulic system includes hydraulic press and press head to apply pressure to the crushed waste printed circuit base board grains inside the mold; and the heating and forming mold system includes mold, heater, thermocouple, heating power supply and temperature controlling device to heat the mold and control the temperature. The apparatus of the present invention has simple structure and produced regenerated board may be used in producing furniture, floor tile and other building decorating material and as insulating material.
Description
Technical field
The present invention relates to a kind of preparation facilities of base plate material granules regeneration plate of broken worn-out printed circuit board, the baseplate material of waste and old printed circuit board is carried out recycling, the sheet material of preparation can be used as insulating materials, furniture and building and ornament materials.Belong to trade waste processing, resource technology field in the environmental protection technical field.
Background technology
Novel solid discarded object-electron wastes appears in the high speed development along with electronic information industry: comprise electronic instrument that various waste computers, communication equipment, television set, refrigerator, washing machine and unit eliminate etc.Estimate that according to the expert surplus the electrical equipment about 2800 such as the refrigerator that China scraps present every year, washing machine, computer, air-conditioning ten thousand, waste electronic electrical equipment total amount reaches 1,000,000 tons, and wherein printed circuit board (PCB) accounts for 4% of total amount greatly.
Contain tens kinds of metals that recovery value is higher such as copper, gold, silver, palladium in the waste and old printed circuit board.As containing copper (Cu), gold (Au), silver (Ag), palladium valuable metals such as (Pd) in the waste mobile phone circuit board, content is: contain golden 280g/t, silver-colored 2kg/t, copper 1000g/t, palladium 100g/t.Even the gold content grade of gold mine is low to moderate 3g/t extraction value is arranged also, and also have only about 70g/t through the concentrate gold content that ore dressing obtains.The average grade of China platinum group metal has only 0.4g/t, the grade 0.6-23g/t of world's platinum-group metal ores, and copper mine, silver ore do not reach above-mentioned content yet.
In printed circuit board (PCB), the content of metal is up to 40%, and the rich ore tenor of occurring in nature 3-5% only.Maximum is copper, also has gold, aluminium, nickel, lead, silicon metal etc. in addition, wherein is no lack of rare metal.Have statistics to show, gold content reaches about 1000 grams in the waste and old circuit board per ton.Now, along with technological level improves, cost reduces, and still can extract the gold about 300 grams in the useless circuit board per ton, and market price is roughly equal to about 30,000 yuan.Therefore, the metal that contains in so-called " electronic waste " is tens times even hundred times of natural mineral reserve.At present, the emphasis of researcher research is mainly to concentrate in the recovery of rare precious metal and valuable metal in the waste and old printed circuit board, and ignores the recovery and reuse problem of nonmetallic materials.
At present, the metal in the method separation printed circuit board (PCB) of many employing fragmentations and nonmetal mainly be the metal that reclaims wherein, and the baseplate material particle of waste and old printed circuit board is lost as rubbish.Because the baseplate material of printed circuit board (PCB) (PCB) is difficult to fusing and dissolving as a kind of same with thermosetting compound material (SMC), on the other hand, comprises a large amount of inorganic constituents such as glass fibre among the SMC, calorific value is lower, can't use the method for burning to handle; Landfill is the extensive at present main method of handling waste and old printed circuit board, loses but the baseplate material of waste and old printed circuit board is used as rubbish, can cause a large amount of wastings of resources and environmental pollution.Document " pyrolysis of printed circuit board waste and product analysis thereof " (Sun Lushi, Lu Jidong etc., " chemistry of fuel journal " the 3rd phase in 2002) and document " the pyrolysis experimental study of substrate for printed circuit board " (Peng Ke etc., " Techniques and Equipment for Environmental Pollution Control " 2004 the 5th phases) introduced with method for pyrolysis and handled waste and old printed circuit board.This method mainly is to make the macromolecular material in the printed circuit board (PCB) be cracked into little molecule alkane, can do fuel and industrial chemicals use after rationally reclaiming; Simultaneously inorganic matter such as glass fibre scarcely changes in the printed circuit board (PCB), still exists with the solid waste form.Owing in printed circuit board (PCB), contain a spot of macromolecule organic material, and in pyrolytic process, produce a lot of pernicious gases (can generate many bromos dibenzo dioxanes and PBDF) as PBDEs.Therefore, this method exists cost height, complex process, causes problems such as secondary environmental pollution, is not the optimal method of handling the baseplate material of waste and old printed circuit board.
Summary of the invention
The objective of the invention is to regeneration and these two angles of environmental protection from resource; overcome deficiency of the prior art; a kind of preparation facilities of base plate material granules regeneration plate of broken worn-out printed circuit board is provided; baseplate material particle with the waste and old printed circuit board after pulverizing is a raw material, adopts hot-extrusion method to make the baseplate material thermosetting of waste and old printed circuit board turn to sheet material.
For realizing such purpose, the inventive system comprises hydraulic system and hot briquetting mold system two parts, wherein hydraulic system adopts hydraulic press and pressure head, baseplate material particle to the broken worn-out printed circuit board in the mould is exerted pressure, the hot briquetting mold system comprises mould, calandria, thermocouple and heating power supply and temperature controlling instruments, to the mould temperature control of heating.
Hydraulic press is connected with pressure head, by regulating oil pressure pressure head is exerted pressure, and the baseplate material particle of the waste and old printed circuit board in the mould is pressurizeed.Lay calandria and thermocouple in the hot briquetting mold system in mould, heating power supply and temperature controlling instruments are connected with thermocouple with calandria, by mould the baseplate material particle of waste and old printed circuit board are added gentle temperature control.
During the preparation regenerated plates, adopt and made raw material by the baseplate material particle of chippy waste and old printed circuit board, perhaps adopt and in the baseplate material particle, be added with the mixed material that percentage by weight is no more than 10% curing agent and make raw material, raw material is put into the mould that has calandria, raw material is carried out compacting by pressure head.Then, mould is heated, by the thermocouple temperature control, mold heated to 150 ℃-300 ℃ by heating power supply and temperature controlling instruments.In heating process, by hydraulic press pressure head is constantly exerted pressure, insulation is 10 minutes-15 minutes under 20～70Mpa pressure, turns off power supply, begins to cool down.To be cooled to below 100 ℃, unloading pressure, molding can obtain utilizing the regenerated plates of the baseplate material preparation of granules of broken worn-out printed circuit board.
The present invention adopts hydraulic press that pressure head is exerted pressure, can be according to the size of sheet material and the pressure of the definite hydraulic press of size of need exerting pressure.
Heating power supply of the present invention can adopt two-phase or three-phase alternating current, adopts the voltage of scr voltage converter control calandria, and the temperature control precision of temperature-controlling system is positive and negative 2 ℃;
Apparatus structure of the present invention is simple, can utilize the baseplate material particle of broken worn-out printed circuit board to be the feedstock production regenerated plates, technology is simple, the regenerated plates of preparation can be used to make furniture, compoboard, floor tile, etc. building and ornament materials, also can be used as insulating materials.
Description of drawings
Fig. 1 is the manufacturing installation structural representation of the base plate material granules regeneration plate of waste and old printed circuit board of the present invention.
Among the figure, 1 is hydraulic system, and 2 are the hot briquetting mold system, and 3 is pressure head, 4 is hydraulic press, 5 is mould, and 6 is calandria, and 7 is thermocouple, 8 is the raw material of regenerated plates, 9 is heating power supply and temperature controlling instruments, 10 be temperature-controlling system with thermocouple between be connected lead, 11 be power supply with calandria between be connected lead.
The specific embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is further described.
Apparatus structure of the present invention as shown in Figure 1, comprise hydraulic system 1 and hot briquetting mold system 2 two parts, wherein hydraulic system 1 comprises hydraulic press 4 and pressure head 3, and hot briquetting mold system 2 comprises mould 5, calandria 6, thermocouple 7 and heating power supply and temperature controlling instruments 9.
Hydraulic press 4 is connected with pressure head 3, by regulating oil pressure pressure head 3 is exerted pressure, and the baseplate material particle 8 of the waste and old printed circuit board in the mould 5 is pressurizeed.Lay calandria 6 and thermocouple 7 in mould 5, heating power supply and temperature controlling instruments 9 are connected with thermocouple 7 with calandria 6, and the baseplate material particle 8 by 5 pairs of waste and old printed circuit boards of mould adds gentle temperature control.
During the preparation regenerated plates, adopt by the baseplate material particle of chippy waste and old printed circuit board, perhaps adopt and in the baseplate material particle, be added with percentage by weight and be no more than the raw material 8 of the mixed material of 10% curing agent as regenerated plates, raw material 8 is put into the mould 5 that has calandria 6, carry out compacting by 3 pairs of raw materials of pressure head 8.Then, heat,, mould 5 is heated to 150 ℃-300 ℃ by thermocouple 7 temperature controls by heating power supply and 9 pairs of moulds 5 of temperature controlling instruments.In heating process, constantly exert pressure by 4 pairs of pressure heads 3 of hydraulic press, insulation is 10 minutes-15 minutes under 20～70Mpa pressure, turns off power supply, begins to cool down.To be cooled to below 100 ℃, unloading pressure, molding can obtain utilizing the regenerated plates of the baseplate material preparation of granules of waste and old printed circuit board.
The present invention provides power supply and carries out temperature control by heating power supply and 9 pairs of devices of temperature controlling instruments, and heating power supply can adopt two-phase or three-phase alternating current, adopts scr voltage converter control to be applied to the voltage of calandria 6, and temperature control precision is positive and negative 2 ℃.
Claims (1)
1, a kind of preparation facilities of base plate material granules regeneration plate of broken worn-out printed circuit board, comprise hydraulic system (1) and hot briquetting mold system (2) two parts, it is characterized in that hydraulic system (1) comprises hydraulic press (4) and pressure head (3), hot briquetting mold system (2) comprises mould (5), calandria (6), thermocouple (7) and heating power supply and temperature controlling instruments (9), hydraulic press (4) is connected with pressure head (3), by regulating oil pressure pressure head (3) is exerted pressure, baseplate material particle (8) to the waste and old printed circuit board in the mould (5) pressurizes, in mould (5), lay calandria (6) and thermocouple (7), heating power supply and temperature controlling instruments (9) are connected with thermocouple (7) with calandria (6), by mould (5) the baseplate material particle (8) of waste and old printed circuit board are added gentle temperature control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510023787 CN1654182A (en) | 2005-02-03 | 2005-02-03 | Preparation equipment for broken worn-out printed circuit board base plate material granules regeneration plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510023787 CN1654182A (en) | 2005-02-03 | 2005-02-03 | Preparation equipment for broken worn-out printed circuit board base plate material granules regeneration plate |
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| Publication Number | Publication Date |
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| CN1654182A true CN1654182A (en) | 2005-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510023787 Pending CN1654182A (en) | 2005-02-03 | 2005-02-03 | Preparation equipment for broken worn-out printed circuit board base plate material granules regeneration plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823311B (en) * | 2005-11-09 | 2012-11-21 | 耐克国际有限公司 | Footwear mold heating system and method |
| CN107791405A (en) * | 2017-09-28 | 2018-03-13 | 佛山汇众森泰科技有限公司 | The environmental protection macromolecule material processing unit (plant) and preparation method that a kind of impact resistance is pressure-resistant |
-
2005
- 2005-02-03 CN CN 200510023787 patent/CN1654182A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823311B (en) * | 2005-11-09 | 2012-11-21 | 耐克国际有限公司 | Footwear mold heating system and method |
| CN107791405A (en) * | 2017-09-28 | 2018-03-13 | 佛山汇众森泰科技有限公司 | The environmental protection macromolecule material processing unit (plant) and preparation method that a kind of impact resistance is pressure-resistant |
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