WO2007055490A1 - A removal apparatus of electric wire covering - Google Patents

A removal apparatus of electric wire covering Download PDF

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Publication number
WO2007055490A1
WO2007055490A1 PCT/KR2006/004498 KR2006004498W WO2007055490A1 WO 2007055490 A1 WO2007055490 A1 WO 2007055490A1 KR 2006004498 W KR2006004498 W KR 2006004498W WO 2007055490 A1 WO2007055490 A1 WO 2007055490A1
Authority
WO
WIPO (PCT)
Prior art keywords
clad
waste electric
electric wires
disposed
section
Prior art date
Application number
PCT/KR2006/004498
Other languages
French (fr)
Inventor
To-Sik Min
Original Assignee
World Resources Co., Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by World Resources Co., Ltd filed Critical World Resources Co., Ltd
Publication of WO2007055490A1 publication Critical patent/WO2007055490A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B15/00—Apparatus or processes for salvaging material from cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B15/00—Apparatus or processes for salvaging material from cables
    • H01B15/008—Apparatus or processes for salvaging material from cables by crushing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/12—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof
    • 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]

Definitions

  • the present invention relates to a clad separation device for waste electric wires, and more particularly, to a clad separation device for waste electric wires, in which a waste electric wire such as a waste communication wire, and the like, in which a copper wire disposed at the center thereof is surrounded in due sequence by a clad made of polyethylene (PE) resin and polyvinylchloride (PVC) resin of a predetermined thickness, is subjected to the compression and chemical treatment on a step-by-step basis while passing through a device, so that the clad and the copper wire can be separated from each other more easily.
  • PE polyethylene
  • PVC polyvinylchloride
  • the waste electric wires generated from various industrial fields have been actually collected by an individual, a secondhand dealer or a place of business to obtain economic profits till now.
  • the economically valuable copper wire was only separated from the clad of the waste electric wire, which was made of polyethylene (PE) resin and polyvinylchloride (PVC) resin, and reused or the collected waste electric wires were sorted as waste and discarded imprudently.
  • PE polyethylene
  • PVC polyvinylchloride
  • Korean Patent Laid-Open Publication No.2001- 2443 has disclosed a copper recovery device, in which the clad was removed by burning in such a way that the clad of the waste electric wire was thermally decomposed and melt in a thermal decomposition furnace, to thereby recover copper wire from the waste electric wire, and the residual materials flowed in from the combustion furnace due to the thermal decomposition, were burned to thereby obtain copper.
  • the devices for recovering the copper wire from the waste electric wire have been developed with a principal view of separating the copper only, a problem occurs that it is impossible to separate materials such as the recyclable PVC or PE in a reusable state.
  • the present invention has been devised to solve such conventional problems, and it is an object of the present invention to provide a new clad separation device for a waste electric wire, in which a waste electric wire such as a waste communication wire, and the like, in which a copper wire disposed at the center thereof is surrounded in due sequence by a clad made of polyethylene PE resin and polyvinylchloride PVC resin of a predetermined thickness, is subjected to the compression and chemical treatment on a step-by-step basis while passing through a device, so that the clad and the copper wire can be separated from each other more easily.
  • a clad separation device for waste electric wires comprising a preliminary treatment section for compressing waste electric wires cut into a predetermined length after they are separated and collected from various industrial fields to form cracks and scratches on a clad layer, and passing them through clad dissolving solution; a PVC clad separation section disposed at the rear side of the preliminary treatment section so as to be divided into a plurality of sections, for repeatedly compressing the waste electric wires transported through the preliminary treatment section, to form deeper cracks and scratches on the clad layer, and injecting the clad dissolving solution from an upper direction to thereby separate PVC clad layer; a PE clad separation section disposed at the rear side of the PVC clad separation section so as to be divided into a plurality of sections, for repeatedly compressing the waste electric wires transported through the PVC clad separation section with the PVC clad layer being separated, to form deep cracks on an inside PE clad layer, and
  • the PVC clad and the PE clad can be separated and removed very efficiently because the waste electric wire packaged by the PVC resin and the PE resin, is preliminarily treated with primary compression and clad dissolving solution, and then secondary and tertiary compressing the resultant product with passing through the PVC clad separation section and the PE clad separation section disposed as a serious of continuous process instantly treating it with harmless clad dissolving solution having no smell.
  • the obtained copper wires are collected by means of a separate collection portion, and crushed and recycled, and the separated PVC clad and the PE clad are also separately collected and recycled, so that they can be utilized in the industry very usefully.
  • FIG.l is a constructional view showing a clad separation device for a waste electric wire according to the present invention.
  • FIG.2 is a front cross-sectional view showing a preliminary treatment section, a PVC clad separation section, and a PE clad separation section of the clad separation device for a waste electric wire according to the present invention
  • FIG.3 is a side cross-sectional view showing the construction of the preliminary treatment section in the present invention
  • FIG.4 is a top plan view of the preliminary treatment section in the present invention.
  • FIG.5 is a cross-sectional view showing the PVC clad separation section in the present invention.
  • FIG.6 is a cross-sectional view showing the PE clad separation section in the present invention
  • FIG.7 is a top plan view showing the copper wire collection section in the present invention
  • FIG.8 is a front view of FIG.7;
  • FIG.9 is a partially enlarged front view showing the construction of a compression roller applied to the present invention.
  • FIG.10 is a cross-sectional view of FIG.9.
  • FIG.11 is a partially enlarged perspective view showing the construction of a net-type conveyor applied to the present invention.
  • the preliminary treatment section is characterized by including: a box-type transportation table having a predetermined height and length; a first conveyor disposed in such a manner as to extend from the front side to the rear side of the transportation table by a predetermined range of length for transporting the waste electric wires to a predetermined direction while rotating in an endless track manner; a first compression roller consisting of an upper roller and a lower roller disposed at the end portion of the first conveyor, for compressing the waste electric wires to form cracks on a clad layer; a first net-type conveyor disposed on the transportation table at the rear side of the first compression roller at the state of being immersed into the clad dissolving solution, for transporting the compressed waste electric wires to a following process in the state of being immersed into the clad dissolving solution while being driven in the endless track manner by means of a chain and a sprocket; and a second conveyor disposed at the rear side of the first net-type conveyor for transporting the preliminarily treated waste
  • the PVC clad separation section includes a plurality of second compression rollers, each of which is constructed of an upper roller and a lower roller disposed at a position adjacent to the rear end of the second conveyor of the preliminary treatment section and a start portion of each section, for repeatedly compressing the transported waste electric wires to form deeper cracks on the clad layer; a plurality of second net- type conveyors, each of which is disposed between the second compression rollers of each section and driven in the endless track manner by means of the chain and the sprocket, to transport the waste electric wires to a following process; and a plurality of dissolving solution injection nozzles disposed at the rear and upper direction of the second compression roller for injecting the clad dissolving solution onto the transported waste electric wires .
  • the PE clad separation section is characterized by including a plurality of third compression rollers, each of which is constructed of an upper roller and a lower roller disposed at a position adjacent to the rear end of the second net- type conveyor of the PVC clad separation section and a start portion of each section, for repeatedly compressing the transported waste electric wires to form deep cracks on the PE clad layer; and a third net-type conveyor disposed on the transportation table between respective third compression roller at the state of being immersed into the clad dissolving solution, for transporting the compressed waste electric wires to a following process in the state of being immersed into the clad dissolving solution while being driven in the endless track manner by means of a chain and a sprocket.
  • the copper wire collection section includes a third conveyor disposed at the rear end of the PE clad separation section for transporting the copper wires separating the PE clad layer to the upper direction; a crush roller disposed at the rear side of the third conveyor for compressing and crushing the copper wires dropping to the lower side while rotating by means of the driving of the motor; a hopper disposed at the rear and upper side of the crush roller; a pump disposed between the crush roller and the hopper for pumping and transporting the copper wires crushed by the crush roller to the hopper side; and a fourth conveyor disposed outwardly from the vertical lower side of the hopper for discharging the copper wires supplied from the hopper to the outside.
  • the present invention is characterized by further comprising clad discharge plates formed with a discharge opening at the center thereof and formed slantly to the discharge opening at the edge surface, each of the clad discharge plates being disposed at the lower side of the second net-type conveyor and the third net-type conveyor of each section, and constructing the PVC clad separation section and the PE clad separation section; and a fifth conveyor disposed at the lower side of each clad discharge plate, for discharging the wastes of the PVC clad and the PE clad discharged through the clad discharge plate to the outside .
  • FIG.l is a constructional view showing a clad separation device for a waste electric wire according to the present invention
  • FIG.2 is a front cross-sectional view showing a preliminary treatment section, a PVC clad separation section, and a PE clad separation section of the clad separation device for a waste electric wire according to the present invention.
  • the clad separation device for the waste electric wire is constructed such that the waste electric wires are undergone a compression process and a chemical treatment process while passing through a device, so that a clad and a copper wire can be separated more easily.
  • the waste clad separation device 10 for the waste electric wire of the present invention is largely constructed of a preliminary treatment section 20, a PVC clad separation section 30, a PE clad separation section 40, and a copper wire collection section 50.
  • the preliminary treatment section 20 is constructed that waste electric wires 60, which have been separated and collected from various industrial fields and cut into predetermined length, are compressed to make a clad layer of the waste electric wires be cracked and damaged, and then they are transported to the following processes at a state being immersed into clad dissolving solution 70, so that the clad layer of the waste electric wires can be easily separated in the following processes.
  • the PVC clad separation section 30 is disposed at the rear portion of the preliminary treatment section 20 so as to be divided into a plurality of sections, so that the transported waste electric wires 60 passing through the preliminary treatment section 20, are repeatedly compressed to define deeper cracks at the clad layer, and dissolved by the injection of the clad dissolving solution from the upper side and infiltrated into the cracked portion, resulting in the separation and removal of the cracked PVC clad layer.
  • the PE clad separation section 40 is disposed at the rear portion of the PVC clad separation section 30 so as to be divided into a plurality of sections.
  • the transported waste electric wires 60 passing through the PVC clad separation section 30 with the PVC clad layer being separated are repeatedly compressed to define deeper cracks at the inside PE clad layer, and made to pass through the stage with the waste electric wires being immersed into the clad dissolving solution 70, so that the PE clad layer can be separated and removed.
  • the copper wire collection section 50 is operated to compress and crush the copper wires transported after the PE clad layer is separated while passing through the PE clad separation section 40, and discharge them.
  • FIG.3 is a side cross-sectional view showing the construction of the preliminary treatment section in the present invention
  • FIG.4 is a top plan view of the preliminary treatment section in the present invention.
  • a box-type transportation rable 21 having a desired height and length is prepared to construct the preliminary treatment section 20.
  • a first conveyor 22 is installed to rotate in an endless track manner for transporting the waste electric wires 60 in a predetermined direction by a predetermined length range.
  • a first compression roller 23 is disposed at the end portion of the first conveyor 22 to compress the transported waste electric wires 60 through the first conveyor 22 and produce cracks and damage at the clad layer, and the compression roller 23 is constructed of an upper roller 23a and a lower roller 23b driven respectively by means of a separate motor 24.
  • a first net-type conveyor 25 is disposed in a state immersed into the clad dissolving solution 70, at the rear of the first compression roller 23 on the transportation table 21, and a chain 25b into which a sprocket 25a of a driving roller shape is inserted, is disposed at the side edge of the first net-type conveyor 25.
  • a second conveyor 26 is disposed at the rear of the first net-type conveyor 25 for transporting the preliminarily treated waste electric wires to the PVC clad separation section 30, and a separate compression roller 23' , which is constructed identically with the first compression roller 23, can be disposed between the rear side of the first net-type conveyor 25 and the second conveyor 26.
  • FIG. 5 is a cross-sectional view showing the PVC clad separation section in the present invention.
  • the PVC clad separation section 30 of the present invention is constructed of an upper roller 31a and a lower roller 31b disposed at a position adjacent to the rear end of the second conveyor 26 on the preliminary treatment section 20 and at the respective start portion of the respective section, and a plurality of second compression rollers 31 are disposed to compress the transported waste electric wires 60 repeatedly to thereby produce deeper cracks at the clad layer of the waste electric wires.
  • FIG. 6 is a cross-sectional view showing the PE clad separation section in the present invention.
  • a third compression rollers 41 constructed of an upper roller 41a and a lower roller 41b is disposed at a position adjacent to the rear end of the last second net-type conveyor 33 of the PVC clad separation section 30 and at the start portion of the respective section, and is operated to repeatedly compress the waste electric wires transported at the separated state of the PE clad to form deep cracks and scratches on the PS clad layer.
  • a third net-type conveyor 43 is disposed between the respective third compression roller 41 so that it is driven by the endless track manner by the engagement of a chain 43a and a sprocket 43b with it being immersed into the clad dissolving solution 70.
  • the third net-type conveyor 43 is operated to transport the waste electric wires 60 compressed by the third compression roller 41 to the following process at the state being immersed into the clad dissolving solution 70.
  • FIG.7 is a top plan view showing the copper wire collection section in the present invention
  • FIG.8 is a front view of FIG.7.
  • the copper wire collection section 50 of the present invention comprises a third conveyor 51 disposed at the rear end of the PE clad separation section 40 for transporting the copper wire separated from the PE clad layer.
  • a crush roller 53 is disposed at the rear side of the third conveyor 51 so that it is rotated by the driving of the motor 52 to thereby compress and crush the copper wire transported to the upper side and then dropped to the lower side.
  • a hopper 54 is disposed at the rear upper side of the crush roller 53
  • a pump 55 is disposed between the crush roller 53 and the hopper 54 for transporting the copper wire crushed by the crush roller 53 to the hopper 54 by the pumping
  • a fourth conveyor 56 is disposed outwardly from the vertically lower side of the hopper 54 for discharging the copper wire supplied from the hopper 54 to the outside.
  • a clad discharge plate 80 is disposed at the lower side of the second net-type conveyor 33 and the third net-type conveyor 43 of respective section constructing the PVC clad separation section 30 and the PE clad separation section 40 of the present invention, the clad discharge plate being formed with a discharge opening 81 at the center thereof and inclined to the discharge opening 81 at the edge surface .
  • a fifth conveyor 83 is disposed at the lower side of the clad discharge plate 80 for discharging wastes 82 of the PVC clad and the PE clad discharged through the discharge opening 81 to the outside.
  • the waste electric wires 60 collected from respective industrial fields are cut into a predetermined length easy for the work by a separate cutting member and prepared, and then the prepared waste electric wires can be supplied continuously.
  • the clad separation device is actuated when the preparation is completed, then the waste electric wires 60 are supplied on the first conveyor 22, the waste electric wires 60 are transported along the first conveyor 22 and then rolled and entered between the upper roller 23a and the lower roller 23b constructing the first compression roller 23 to be compressed by the upper roller 23a and the lower roller 23b driven by the separate motor 24.
  • the waste electric wires 60 When the waste electric wires 60 are thus compressed, cracks and scratches can be formed at the PVC clad layer coated on the outer surface of the waste electric wires 60. Then, the compressed waste electric wires 60 are transported to the rearward direction along the first net- type conveyor 25. In this instance, the waste electric wires 60 are transported at the state of immersion into the clad dissolving solution 70, since the first net-type conveyor 25 is transported at the state of immersion into the clad dissolving solution 70.
  • the clad dissolving solution 70 is infiltrated into the cracks and the scratches formed at the waste electric wires 60 to thereby primarily dissolve the PVC clad layer.
  • waste electric wires preliminarily treated as described above are transported to the following PVC clad separation section 30 by means of the second conveyor 26.
  • the separate compression roller 23' When the separate compression roller 23' is disposed between the rear end of the first net-type conveyor 25 and the second conveyor 26 in the course of the preliminary treatment of the waste electric wires 60, they can be further compressed by means of the compression roller 23' prior to the transportation of the waste electric wires 60 transported at the state of immersion into the clad dissolving solution 70 to the following PVC clad separation section 30.
  • the waste electric wires transported to the PVC clad separation section 30 are repeatedly compressed by means of the plurality of compression rollers 31 disposed at the start portion of respective section to thereby form deeper cracks and scratches at the clad layer, and the clad dissolving solution injected from the injection nozzles 34 is infiltrated into the cracks and the scratches thus formed to dissolve the clad layer, and PVC clad separated by means of the actions as described above is dropped down on the clad discharge plate 80 disposed at the lower side.
  • the separation operation of the PVC clad as described above is performed with passing through a plurality of sections, the separation of the PVC clad is performed very efficiently, and the waste electric wires 60 with their PVC clad are separated at the PVC clad separation section 30 are transported to the following PE clad separation section 40.
  • the waste electric wires 60 transported to the PE clad separation section 40 are compressed repeatedly by the compression action of the upper roller 41a and the lower roller 41b constructing the compression roller 41 disposed at the entering portion of the respective section, so that cracks and scratches are formed at the PE clad.
  • the compressed waste electric wires 60 are transported to the following process by the action of the third net- type conveyor 43, and since the waste electric wires 60 are immersed into the clad dissolving solution 70 during the transportation, the PE clad are dissolved along the cracks and the scratches to thereby be separated from the copper wire .
  • the separated PE clad wastes are discharged onto the clad discharge plate 80 disposed at the lower side after the completion of the process.
  • the copper wires obtained from the waste electric wires after the separation and removal of the PVC clad layer and the PE clad layer while passing through the PVC clad separation section 30 and the PE clad separation section 40 are transported to the upward direction by means of the operation of the third conveyor 51 disposed continuously at the rear side of the PE clad separation section 40, and then dropped to the lower side, and crushed by the crush roller 53 rotated by the driving of the motor 52.
  • the crushed copper wires are stored in the hopper 54 disposed separately by the pumping action of the pump 55, and the copper wires stored in the hopper 54 are emitted, if required, and transported to the outside through the fourth conveyor 56.
  • the PVC clad wastes 82 and the PE clad wastes separated and removed at the PVC clad separation section 30 and the PE clad separation section 40 are moved slidingly along the slant surface of the clad discharge plate 80 and discharged through the discharge opening 81 to the lower side, and the discharged PVC clad wastes and the PE clad wastes 82 are transported by means of the fifth conveyor 83 to the outside and recycled.

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  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The present invention relates to a clad separation device for waste electric wires, in which a copper wire disposed at the center thereof is subjected to the compression and chemical treatment on a step-by-step basis while passing through a device. The inventive clad separation device comprises: a preliminary treatment section for compressing waste electric wires cut into a predetermined length and scratches on a clad layer, and passing them through clad dissolving solution; a PVC clad separation section disposed at the rear side of the preliminary treatment section a PE clad separation section disposed at the rear side of the PVC clad separation section, and then passing the compressed waste electric wires through the clad dissolving solution with them being immersed into the clad dissolving solution, and a copper wire collection section for compressing and crushing copper wires transported after the PE clad layer has been separated while passing through the PE clad separation section, and collecting the crushed copper wires.

Description

A REMOVAL APPARATUS OF ELECTRIC WIRE COVERING
Technical Field
The present invention relates to a clad separation device for waste electric wires, and more particularly, to a clad separation device for waste electric wires, in which a waste electric wire such as a waste communication wire, and the like, in which a copper wire disposed at the center thereof is surrounded in due sequence by a clad made of polyethylene (PE) resin and polyvinylchloride (PVC) resin of a predetermined thickness, is subjected to the compression and chemical treatment on a step-by-step basis while passing through a device, so that the clad and the copper wire can be separated from each other more easily.
Background Art
Recently, the demand for a variety of electric wires is increasing in diverse industrial fields such as electric, communicational, electronic industrial field, and the like, along with the rapid development of the industrial technology. Thus, the amount of the waste electric wires generated has also been increased at the same time along with the increase of the use of the electric wire, to cause a matter of disposal of electric wires. However, systematic measures for collection and disposal of the waste electric wire have not been prepared until now.
Accordingly, the waste electric wires generated from various industrial fields have been actually collected by an individual, a secondhand dealer or a place of business to obtain economic profits till now. In this regard, the economically valuable copper wire was only separated from the clad of the waste electric wire, which was made of polyethylene (PE) resin and polyvinylchloride (PVC) resin, and reused or the collected waste electric wires were sorted as waste and discarded imprudently. Thus, if the collected waste electric wires were discarded and reclaimed imprudently without being recycled or disposed after undergoing appropriate procedures, since the copper wire was embedded in it and the copper wire was surrounded by the polyethylene resin and the polyvinylchloride resin at the outer surface thereof, which are not decomposed even after the passage of a long time, thus contaminating the soil. Furthermore, if the waste electric wire is burned to separate the copper wire therefrom, a problem occurs that severe bad smell and smoke in addition to the dioxin, which causes a cancer, are produced together with the burning of the polyethylene resin and polyvinylchloride resin constructing the clad, and diffused to the atmosphere, to thereby affect seriously to the environments. As a result, conventionally, a method of removing the clad from the waste electric wire has been suggested in which the collected waste electric wire is compressed by means of a pressurization roller to separate the copper wire from the clad. However, if the waste electric wire is a soft wire, it is almost impossible to separate the copper wire, and the separation process becomes complex because the separation of the copper wire from the clad is not performed in due course.
In addition to the separation method using the pressurization roller as described above, in Korean Utility Model Laid-Open Publication No. 2000-1418, there has been disclosed an extraction device for a copper wire, in which a barrel accommodating the waste electric wire disposed in a heating container arranged in a furnace, is indirectly heated by the heat from the waste incinerator, to thereby thermally decompose it progressively, dry by distillation and carbonize it, and then drawn by means of a hoist and striking it, so that the copper wire and the clad can be separated from each other.
Also, Korean Patent Laid-Open Publication No.2001- 2443 has disclosed a copper recovery device, in which the clad was removed by burning in such a way that the clad of the waste electric wire was thermally decomposed and melt in a thermal decomposition furnace, to thereby recover copper wire from the waste electric wire, and the residual materials flowed in from the combustion furnace due to the thermal decomposition, were burned to thereby obtain copper. However, since the devices for recovering the copper wire from the waste electric wire have been developed with a principal view of separating the copper only, a problem occurs that it is impossible to separate materials such as the recyclable PVC or PE in a reusable state.
Disclosure of Invention Technical Problem
Accordingly, the present invention has been devised to solve such conventional problems, and it is an object of the present invention to provide a new clad separation device for a waste electric wire, in which a waste electric wire such as a waste communication wire, and the like, in which a copper wire disposed at the center thereof is surrounded in due sequence by a clad made of polyethylene PE resin and polyvinylchloride PVC resin of a predetermined thickness, is subjected to the compression and chemical treatment on a step-by-step basis while passing through a device, so that the clad and the copper wire can be separated from each other more easily.
Technical Solution
To achieve the above object, according to the present invention, there is provided a clad separation device for waste electric wires, comprising a preliminary treatment section for compressing waste electric wires cut into a predetermined length after they are separated and collected from various industrial fields to form cracks and scratches on a clad layer, and passing them through clad dissolving solution; a PVC clad separation section disposed at the rear side of the preliminary treatment section so as to be divided into a plurality of sections, for repeatedly compressing the waste electric wires transported through the preliminary treatment section, to form deeper cracks and scratches on the clad layer, and injecting the clad dissolving solution from an upper direction to thereby separate PVC clad layer; a PE clad separation section disposed at the rear side of the PVC clad separation section so as to be divided into a plurality of sections, for repeatedly compressing the waste electric wires transported through the PVC clad separation section with the PVC clad layer being separated, to form deep cracks on an inside PE clad layer, and then passing the compressed waste electric wires through the clad dissolving solution with them being immersed into the clad dissolving solution, so that the PE clad layer can be separated and removed; a copper wire collection section for compressing and crushing copper wires transported after the PE clad layer has been separated while passing through the PE clad separation section, and collecting the crushed copper wires.
Advantageous Effects Therefore, according to the application of the present invention as described above, the PVC clad and the PE clad can be separated and removed very efficiently because the waste electric wire packaged by the PVC resin and the PE resin, is preliminarily treated with primary compression and clad dissolving solution, and then secondary and tertiary compressing the resultant product with passing through the PVC clad separation section and the PE clad separation section disposed as a serious of continuous process instantly treating it with harmless clad dissolving solution having no smell.
Then, the obtained copper wires are collected by means of a separate collection portion, and crushed and recycled, and the separated PVC clad and the PE clad are also separately collected and recycled, so that they can be utilized in the industry very usefully.
Description of Drawings
FIG.l is a constructional view showing a clad separation device for a waste electric wire according to the present invention;
FIG.2 is a front cross-sectional view showing a preliminary treatment section, a PVC clad separation section, and a PE clad separation section of the clad separation device for a waste electric wire according to the present invention; FIG.3 is a side cross-sectional view showing the construction of the preliminary treatment section in the present invention;
FIG.4 is a top plan view of the preliminary treatment section in the present invention;
FIG.5 is a cross-sectional view showing the PVC clad separation section in the present invention;
FIG.6 is a cross-sectional view showing the PE clad separation section in the present invention; FIG.7 is a top plan view showing the copper wire collection section in the present invention;
FIG.8 is a front view of FIG.7;
FIG.9 is a partially enlarged front view showing the construction of a compression roller applied to the present invention;
FIG.10 is a cross-sectional view of FIG.9; and
FIG.11 is a partially enlarged perspective view showing the construction of a net-type conveyor applied to the present invention.
Best Mode for Carrying Out the Invention
In the present invention, the preliminary treatment section is characterized by including: a box-type transportation table having a predetermined height and length; a first conveyor disposed in such a manner as to extend from the front side to the rear side of the transportation table by a predetermined range of length for transporting the waste electric wires to a predetermined direction while rotating in an endless track manner; a first compression roller consisting of an upper roller and a lower roller disposed at the end portion of the first conveyor, for compressing the waste electric wires to form cracks on a clad layer; a first net-type conveyor disposed on the transportation table at the rear side of the first compression roller at the state of being immersed into the clad dissolving solution, for transporting the compressed waste electric wires to a following process in the state of being immersed into the clad dissolving solution while being driven in the endless track manner by means of a chain and a sprocket; and a second conveyor disposed at the rear side of the first net-type conveyor for transporting the preliminarily treated waste electric wires to the PVC clad separation section.
Also, in the present invention, the PVC clad separation section includes a plurality of second compression rollers, each of which is constructed of an upper roller and a lower roller disposed at a position adjacent to the rear end of the second conveyor of the preliminary treatment section and a start portion of each section, for repeatedly compressing the transported waste electric wires to form deeper cracks on the clad layer; a plurality of second net- type conveyors, each of which is disposed between the second compression rollers of each section and driven in the endless track manner by means of the chain and the sprocket, to transport the waste electric wires to a following process; and a plurality of dissolving solution injection nozzles disposed at the rear and upper direction of the second compression roller for injecting the clad dissolving solution onto the transported waste electric wires . Furthermore, in the present invention, the PE clad separation section is characterized by including a plurality of third compression rollers, each of which is constructed of an upper roller and a lower roller disposed at a position adjacent to the rear end of the second net- type conveyor of the PVC clad separation section and a start portion of each section, for repeatedly compressing the transported waste electric wires to form deep cracks on the PE clad layer; and a third net-type conveyor disposed on the transportation table between respective third compression roller at the state of being immersed into the clad dissolving solution, for transporting the compressed waste electric wires to a following process in the state of being immersed into the clad dissolving solution while being driven in the endless track manner by means of a chain and a sprocket.
Moreover, in the present invention, the copper wire collection section includes a third conveyor disposed at the rear end of the PE clad separation section for transporting the copper wires separating the PE clad layer to the upper direction; a crush roller disposed at the rear side of the third conveyor for compressing and crushing the copper wires dropping to the lower side while rotating by means of the driving of the motor; a hopper disposed at the rear and upper side of the crush roller; a pump disposed between the crush roller and the hopper for pumping and transporting the copper wires crushed by the crush roller to the hopper side; and a fourth conveyor disposed outwardly from the vertical lower side of the hopper for discharging the copper wires supplied from the hopper to the outside.
The present invention is characterized by further comprising clad discharge plates formed with a discharge opening at the center thereof and formed slantly to the discharge opening at the edge surface, each of the clad discharge plates being disposed at the lower side of the second net-type conveyor and the third net-type conveyor of each section, and constructing the PVC clad separation section and the PE clad separation section; and a fifth conveyor disposed at the lower side of each clad discharge plate, for discharging the wastes of the PVC clad and the PE clad discharged through the clad discharge plate to the outside .
Hereinafter, the preferred embodiment of the present invention will be described in detail with reference to the appended drawings .
In the present invention, FIG.l is a constructional view showing a clad separation device for a waste electric wire according to the present invention, and FIG.2 is a front cross-sectional view showing a preliminary treatment section, a PVC clad separation section, and a PE clad separation section of the clad separation device for a waste electric wire according to the present invention.
Referring to the drawings, the clad separation device for the waste electric wire according to the present invention is constructed such that the waste electric wires are undergone a compression process and a chemical treatment process while passing through a device, so that a clad and a copper wire can be separated more easily. In this regard, the waste clad separation device 10 for the waste electric wire of the present invention is largely constructed of a preliminary treatment section 20, a PVC clad separation section 30, a PE clad separation section 40, and a copper wire collection section 50. The preliminary treatment section 20 is constructed that waste electric wires 60, which have been separated and collected from various industrial fields and cut into predetermined length, are compressed to make a clad layer of the waste electric wires be cracked and damaged, and then they are transported to the following processes at a state being immersed into clad dissolving solution 70, so that the clad layer of the waste electric wires can be easily separated in the following processes.
The PVC clad separation section 30 is disposed at the rear portion of the preliminary treatment section 20 so as to be divided into a plurality of sections, so that the transported waste electric wires 60 passing through the preliminary treatment section 20, are repeatedly compressed to define deeper cracks at the clad layer, and dissolved by the injection of the clad dissolving solution from the upper side and infiltrated into the cracked portion, resulting in the separation and removal of the cracked PVC clad layer.
In the present invention, the PE clad separation section 40 is disposed at the rear portion of the PVC clad separation section 30 so as to be divided into a plurality of sections. In the PE clad separation section 40, the transported waste electric wires 60 passing through the PVC clad separation section 30 with the PVC clad layer being separated, are repeatedly compressed to define deeper cracks at the inside PE clad layer, and made to pass through the stage with the waste electric wires being immersed into the clad dissolving solution 70, so that the PE clad layer can be separated and removed.
The copper wire collection section 50 is operated to compress and crush the copper wires transported after the PE clad layer is separated while passing through the PE clad separation section 40, and discharge them.
FIG.3 is a side cross-sectional view showing the construction of the preliminary treatment section in the present invention, and FIG.4 is a top plan view of the preliminary treatment section in the present invention.
Referring now to the drawings, in the present invention, a box-type transportation rable 21 having a desired height and length is prepared to construct the preliminary treatment section 20.
From the front side of the transportation table 21 to the rear side thereof, a first conveyor 22 is installed to rotate in an endless track manner for transporting the waste electric wires 60 in a predetermined direction by a predetermined length range.
In the present embodiment, a first compression roller 23 is disposed at the end portion of the first conveyor 22 to compress the transported waste electric wires 60 through the first conveyor 22 and produce cracks and damage at the clad layer, and the compression roller 23 is constructed of an upper roller 23a and a lower roller 23b driven respectively by means of a separate motor 24.
Furthermore, a first net-type conveyor 25 is disposed in a state immersed into the clad dissolving solution 70, at the rear of the first compression roller 23 on the transportation table 21, and a chain 25b into which a sprocket 25a of a driving roller shape is inserted, is disposed at the side edge of the first net-type conveyor 25. Also, a second conveyor 26 is disposed at the rear of the first net-type conveyor 25 for transporting the preliminarily treated waste electric wires to the PVC clad separation section 30, and a separate compression roller 23' , which is constructed identically with the first compression roller 23, can be disposed between the rear side of the first net-type conveyor 25 and the second conveyor 26. FIG. 5 is a cross-sectional view showing the PVC clad separation section in the present invention.
Referring now to the drawing, the PVC clad separation section 30 of the present invention is constructed of an upper roller 31a and a lower roller 31b disposed at a position adjacent to the rear end of the second conveyor 26 on the preliminary treatment section 20 and at the respective start portion of the respective section, and a plurality of second compression rollers 31 are disposed to compress the transported waste electric wires 60 repeatedly to thereby produce deeper cracks at the clad layer of the waste electric wires.
The upper roller 31a and the lower roller 31b are driven by a separate motor 32. Moreover, a plurality of second net-type conveyors 33 are disposed between the second compression rollers 31 of respective section for transporting the waste electric wires 60 to the next process by driven in the endless track manner by means of a chain 33a and a sprocket 33b, and a plurality of injection nozzles 34 for spraying the clad dissolving solution on the waste electric wires 60 compressed and transported by the second compression roller 31 at the rear upper side of the second compression roller 31. FIG. 6 is a cross-sectional view showing the PE clad separation section in the present invention.
Referring now to the drawing, in the PE clad separation section 40 of the present invention, a third compression rollers 41 constructed of an upper roller 41a and a lower roller 41b is disposed at a position adjacent to the rear end of the last second net-type conveyor 33 of the PVC clad separation section 30 and at the start portion of the respective section, and is operated to repeatedly compress the waste electric wires transported at the separated state of the PE clad to form deep cracks and scratches on the PS clad layer.
In addition, a third net-type conveyor 43 is disposed between the respective third compression roller 41 so that it is driven by the endless track manner by the engagement of a chain 43a and a sprocket 43b with it being immersed into the clad dissolving solution 70.
The third net-type conveyor 43 is operated to transport the waste electric wires 60 compressed by the third compression roller 41 to the following process at the state being immersed into the clad dissolving solution 70.
FIG.7 is a top plan view showing the copper wire collection section in the present invention, and FIG.8 is a front view of FIG.7.
Referring now to the drawings, the copper wire collection section 50 of the present invention comprises a third conveyor 51 disposed at the rear end of the PE clad separation section 40 for transporting the copper wire separated from the PE clad layer.
In the present embodiment, a crush roller 53 is disposed at the rear side of the third conveyor 51 so that it is rotated by the driving of the motor 52 to thereby compress and crush the copper wire transported to the upper side and then dropped to the lower side.
Also, a hopper 54 is disposed at the rear upper side of the crush roller 53, a pump 55 is disposed between the crush roller 53 and the hopper 54 for transporting the copper wire crushed by the crush roller 53 to the hopper 54 by the pumping, and a fourth conveyor 56 is disposed outwardly from the vertically lower side of the hopper 54 for discharging the copper wire supplied from the hopper 54 to the outside. Meanwhile, as shown in detail in FIG. 5 and FIG. 6, a clad discharge plate 80 is disposed at the lower side of the second net-type conveyor 33 and the third net-type conveyor 43 of respective section constructing the PVC clad separation section 30 and the PE clad separation section 40 of the present invention, the clad discharge plate being formed with a discharge opening 81 at the center thereof and inclined to the discharge opening 81 at the edge surface . In addition, a fifth conveyor 83 is disposed at the lower side of the clad discharge plate 80 for discharging wastes 82 of the PVC clad and the PE clad discharged through the discharge opening 81 to the outside.
The operation of the clad separation device for the waste electric wires of the present invention will be described in detail as follows.
Referring now to FIGs. 1 through 11, at first, the waste electric wires 60 collected from respective industrial fields are cut into a predetermined length easy for the work by a separate cutting member and prepared, and then the prepared waste electric wires can be supplied continuously.
Thus, the clad separation device is actuated when the preparation is completed, then the waste electric wires 60 are supplied on the first conveyor 22, the waste electric wires 60 are transported along the first conveyor 22 and then rolled and entered between the upper roller 23a and the lower roller 23b constructing the first compression roller 23 to be compressed by the upper roller 23a and the lower roller 23b driven by the separate motor 24.
When the waste electric wires 60 are thus compressed, cracks and scratches can be formed at the PVC clad layer coated on the outer surface of the waste electric wires 60. Then, the compressed waste electric wires 60 are transported to the rearward direction along the first net- type conveyor 25. In this instance, the waste electric wires 60 are transported at the state of immersion into the clad dissolving solution 70, since the first net-type conveyor 25 is transported at the state of immersion into the clad dissolving solution 70.
Thus, when the compressed waste electric wires 60 are transported at the state of immersion into the clad dissolving solution 70, the clad dissolving solution 70 is infiltrated into the cracks and the scratches formed at the waste electric wires 60 to thereby primarily dissolve the PVC clad layer.
The waste electric wires preliminarily treated as described above, are transported to the following PVC clad separation section 30 by means of the second conveyor 26.
When the separate compression roller 23' is disposed between the rear end of the first net-type conveyor 25 and the second conveyor 26 in the course of the preliminary treatment of the waste electric wires 60, they can be further compressed by means of the compression roller 23' prior to the transportation of the waste electric wires 60 transported at the state of immersion into the clad dissolving solution 70 to the following PVC clad separation section 30.
Meanwhile, the waste electric wires transported to the PVC clad separation section 30 are repeatedly compressed by means of the plurality of compression rollers 31 disposed at the start portion of respective section to thereby form deeper cracks and scratches at the clad layer, and the clad dissolving solution injected from the injection nozzles 34 is infiltrated into the cracks and the scratches thus formed to dissolve the clad layer, and PVC clad separated by means of the actions as described above is dropped down on the clad discharge plate 80 disposed at the lower side.
Since the separation operation of the PVC clad as described above is performed with passing through a plurality of sections, the separation of the PVC clad is performed very efficiently, and the waste electric wires 60 with their PVC clad are separated at the PVC clad separation section 30 are transported to the following PE clad separation section 40. The waste electric wires 60 transported to the PE clad separation section 40 are compressed repeatedly by the compression action of the upper roller 41a and the lower roller 41b constructing the compression roller 41 disposed at the entering portion of the respective section, so that cracks and scratches are formed at the PE clad.
The compressed waste electric wires 60 are transported to the following process by the action of the third net- type conveyor 43, and since the waste electric wires 60 are immersed into the clad dissolving solution 70 during the transportation, the PE clad are dissolved along the cracks and the scratches to thereby be separated from the copper wire .
The separated PE clad wastes are discharged onto the clad discharge plate 80 disposed at the lower side after the completion of the process.
On the other hand, the copper wires obtained from the waste electric wires after the separation and removal of the PVC clad layer and the PE clad layer while passing through the PVC clad separation section 30 and the PE clad separation section 40, are transported to the upward direction by means of the operation of the third conveyor 51 disposed continuously at the rear side of the PE clad separation section 40, and then dropped to the lower side, and crushed by the crush roller 53 rotated by the driving of the motor 52.
The crushed copper wires are stored in the hopper 54 disposed separately by the pumping action of the pump 55, and the copper wires stored in the hopper 54 are emitted, if required, and transported to the outside through the fourth conveyor 56.
In the clad separation device 10 for the waste electric wires as descried above, the PVC clad wastes 82 and the PE clad wastes separated and removed at the PVC clad separation section 30 and the PE clad separation section 40 are moved slidingly along the slant surface of the clad discharge plate 80 and discharged through the discharge opening 81 to the lower side, and the discharged PVC clad wastes and the PE clad wastes 82 are transported by means of the fifth conveyor 83 to the outside and recycled.

Claims

What Is Claimed Is:
1. A clad separation device for waste electric wires, comprising: a preliminary treatment section for compressing waste electric wires cut into a predetermined length after being separated and collected from various industrial fields to form cracks and scratches on a clad layer, and passing them through clad dissolving solution; a PVC clad separation section disposed at the rear side of the preliminary treatment section so as to be divided into a plurality of sections, for repeatedly compressing the waste electric wires transported through the preliminary treatment section, to form deeper cracks and scratches on the clad layer, and injecting the clad dissolving solution from an upper direction to thereby separate PVC clad layer; a PE clad separation section disposed at the rear side of the PVC clad separation section so as to be divided into a plurality of sections, for repeatedly compressing the waste electric wires transported through the PVC clad separation section with the PVC clad layer being separated, to form deep cracks on an inside PE clad layer, and then passing the compressed waste electric wires through the clad dissolving solution with them being immersed into the clad dissolving solution, so that the PE clad layer can be separated and removed; and a copper wire collection section for compressing and crushing copper wires transported after the PE clad layer has been separated while passing through the PE clad separation section, and collecting the crushed copper wires.
2. The clad separation device according to claim 1, wherein the preliminary treatment section includes: a box-type transportation table having a predetermined height and length; a first conveyor disposed in such a manner as to extend from the front side to the rear side of the transportation table by a predetermined range of length for transporting the waste electric wires to a predetermined direction while rotating in an endless track manner; a first compression roller consisting of an upper roller and a lower roller disposed at the end portion of the first conveyor, for compressing the waste electric wires to form cracks on a clad layer; a first net-type conveyor disposed on the transportation table at the rear side of the first compression roller at the state of being immersed into the clad dissolving solution, for transporting the compressed waste electric wires to a following process in the state of being immersed into the clad dissolving solution while being driven in the endless track manner by means of a chain and a sprocket; and a second conveyor disposed at the rear side of the first net-type conveyor for transporting the preliminarily treated waste electric wires to the PVC clad separation section.
3. The clad separation device for waste electric wires according to claim 1, wherein the PVC clad separation section includes:
a plurality of second compression rollers, each of which is constructed of an upper roller and a lower roller disposed at a position adjacent to the rear end of the second conveyor of the preliminary treatment section and a start portion of each section, for repeatedly compressing the transported waste electric wires to form deeper cracks on the clad layer; a plurality of second net-type conveyors, each of which is disposed between the second compression rollers of each section and driven in the endless track manner by means of the chain and the sprocket, to transport the waste electric wires to a following process; and a plurality of dissolving solution injection nozzles disposed at the rear and upper direction of the second compression roller for injecting the clad dissolving solution onto the transported waste electric wires.
4. The clad separation device for waste electric wires according to claim 1, wherein the PE clad separation section includes: a plurality of third compression rollers, each of which is constructed of an upper roller and a lower roller disposed at a position adjacent to the rear end of the second net-type conveyor of the PVC clad separation section and a start portion of each section, for repeatedly compressing the transported waste electric wires to form deep cracks on the PE clad layer; and a third net-type conveyor disposed on the transportation table between respective third compression roller at the state of being immersed into the clad dissolving solution, for transporting the compressed waste electric wires to a following process in the state of being immersed into the clad dissolving solution while being driven in the endless track manner by means of a chain and a sprocket.
5. The clad separation device for waste electric wires according to claim 1, wherein the copper wire collection section includes: a third conveyor disposed at the rear end of the PE clad separation section for transporting the copper wires separating the PE clad layer to the upper direction; a crush roller disposed at the rear side of the third conveyor for compressing and crushing the copper wires dropping to the lower side while rotating by means of the driving of the motor; a hopper disposed at the rear and upper side of the crush roller; a pump disposed between the crush roller and the hopper for pumping and transporting the copper wires crushed by the crush roller to the hopper side; and a fourth conveyor disposed outwardly from the vertical lower side of the hopper for discharging the copper wires supplied from the hopper to the outside.
6. The clad separation device for waste electric wires according to claim 3 or 4, further comprising clad discharge plates formed with a discharge opening at the center thereof and formed slantly to the discharge opening at the edge surface, each of the clad discharge plates being disposed at the lower side of the second net-type conveyor and the third net-type conveyor of each section, and constructing the PVC clad separation section and the PE clad separation section; and a fifth conveyor disposed at the lower side of each clad discharge plate, for discharging the wastes of the PVC clad and the PE clad discharged through the clad discharge plate to the outside.
PCT/KR2006/004498 2005-11-08 2006-11-01 A removal apparatus of electric wire covering WO2007055490A1 (en)

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CN112382449A (en) * 2020-11-26 2021-02-19 冯月果 Crushing equipment convenient for recycling high-temperature-resistant and high-voltage-resistant cables

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KR101437549B1 (en) 2013-05-10 2014-09-05 화인 주식회사 Separating system of jelly from waste electric wire
KR102154648B1 (en) 2020-01-16 2020-09-10 강경호 Suction-vibration separator for recycling wasted wire
KR102154651B1 (en) 2020-01-16 2020-09-10 강경호 Floatation-vibration separater for recycling wasted wire
KR102154643B1 (en) 2020-01-16 2020-09-10 강경호 Apparatus for recycling wasted wire
KR102238155B1 (en) 2020-12-01 2021-04-09 (주)국일메탈 Separation and sorting apparatus and method for copper and sheath from waste wire

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CN112382449B (en) * 2020-11-26 2022-06-21 冯月果 Crushing equipment convenient for recycling high-temperature-resistant and high-voltage-resistant cables

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