KR100391749B1 - Recycling-material separation recovery equipment of waste optical-fiber cable - Google Patents
Recycling-material separation recovery equipment of waste optical-fiber cable Download PDFInfo
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- KR100391749B1 KR100391749B1 KR10-2001-0015385A KR20010015385A KR100391749B1 KR 100391749 B1 KR100391749 B1 KR 100391749B1 KR 20010015385 A KR20010015385 A KR 20010015385A KR 100391749 B1 KR100391749 B1 KR 100391749B1
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- synthetic resin
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
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- Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
본 발명은 폐광케이블의 재활용소재 분리 회수장치에 관한 것으로, 폐광케이블을 길이 방향으로 절개한 후 재활용소재를 분리회수하여 소각으로 인한 환경오염 및 자원낭비를 방지할 수 있도록 하며 분리작업을 효율적을 실시할 수 있도록 한 것이다.The present invention relates to an apparatus for separating and recovering recycled materials of waste optical cables. The present invention relates to recycling and recycling waste materials by longitudinally cutting the waste optical cables, thereby preventing environmental pollution and waste of resources caused by incineration and efficiently carrying out the separating work. It is to be done.
즉, 본 발명은 일정 길이로 절단된 폐광케이블의 일측을 길이방향으로 절개하고, 절개된 폐광케이블로부터 광섬유를 분리하며, 광섬유가 분리된 외피를 돌기로울러로 가압하여 알류미늄피복층과 합성수지피복층를 박리하고, 박리된 알류미늄피복과 합성수지피복을 가열하여 완전이 이격 분리하여 재활용이 가능한 알류미늄외피복과 합성수지피복을 분리 회수 할 수 있도록 한 것이다.That is, the present invention cuts one side of the closed optical fiber cable cut to a length in the longitudinal direction, separates the optical fiber from the cut optical fiber cable, press the outer shell from the optical fiber separated by a projection to peel off the aluminum coating layer and the synthetic resin coating layer, The exfoliated aluminum coating and the synthetic resin coating are heated to separate and recover the recyclable aluminum coating and the synthetic resin coating.
Description
본 발명은 폐광케이블의 재활용소재 분리 회수장치에 관한 것으로, 더욱 상세하게는 교환한 광케이블을 길이 방향으로 절개한 후 재활용소재를 분리회수하여 소각으로 인한 환경오염 및 자원낭비를 방지할 수 있도록 하며 분리작업을 효율적을 실시할 수 있도록 함을 목적으로 한 것이다.The present invention relates to an apparatus for separating and recovering recycled materials of waste optical cables, and more particularly, by cutting the replaced optical cable in a longitudinal direction and then recovering and recycling the recycled materials to prevent environmental pollution and waste of resources caused by incineration. The purpose is to make the work more efficient.
일반적으로, 통신시설에 사용되는 광케이블은 일정기간이 경과하여 노후되거나 침수로 인하여 회손되었을 경우에는 이를 새로운 광케이블로 교환하고 있으며, 교환과정에 발생한 폐광케이블은 주로 소각처리하고 있다.In general, optical cables used in communication facilities are replaced with new optical cables when they are damaged due to aging or flooding after a certain period of time, and waste optical cables generated during the replacement process are mainly incinerated.
그러나, 상기한 바와 같은 광케이블은 그 구조과 데이터가 전송되는 광섬유와, 상기 광섬유를 보호할 수 있게 알류미늄피복층과 합성수지피복층으로 이루어진 외피로 구성된 것으로, 상기 소각과정에 있어 유해가스가 많이 발생하는 문제점이 있었다.However, the optical cable as described above is composed of an optical fiber to which its structure and data are transmitted, and an sheath made of an aluminum coating layer and a synthetic resin coating layer so as to protect the optical fiber. .
이에, 수작업을 통하여 폐광케이블로부터 광섬유와 재활용소재인 외피를 분리회수 하였으나, 그 작업이 수작업에 의하여 이루어지므로 효율성이 떨어지고 인건비가 많이 소요되어 채산성이 맞지 않는 문제점이 있었다.Thus, separate recovery of the optical fiber and the outer sheath, which is a recycled material, from the waste optical cable was performed by hand, but since the work was performed by hand, there was a problem that the efficiency was low and the labor cost was not appropriate.
이에, 본 발명은 상술한 문제점을 해결하기 위하여 안출한 것으로, 일정 길이로 절단된 폐광케이블의 일측을 길이방향으로 절개하고, 절개된 폐광케이블로부터 광섬유를 분리하며, 광섬유가 분리된 외피를 돌기로울러로 가압하여 알류미늄피복층과 합성수지피복층를 박리하고, 박리된 알류미늄피복과 합성수지피복을 가열하여 완전이 이격 분리하여 재활용이 가능한 알류미늄외피복과 합성수지피복을 분리 회수 할 수 있도록 한 것이다.Accordingly, the present invention has been made in order to solve the above-described problems, the one side of the closed optical fiber cable cut to a certain length in the longitudinal direction, and separate the optical fiber from the cut off the optical fiber, the outer surface of the optical fiber is separated by a projection The aluminum coating layer and the synthetic resin coating layer were separated by pressing, and the exfoliated aluminum coating and the synthetic resin coating were heated to separate and recover the aluminum coating and the synthetic resin coating which can be recycled completely.
도 1 은 본 발명에 따른 일 실시예를 보인 사시도.1 is a perspective view showing an embodiment according to the present invention.
도 2 는 본 발명에 따른 일 실시예를 보인 측면도.Figure 2 is a side view showing an embodiment according to the present invention.
도 3 은 본 발명에 따른 일 실시예를 보인 케이블 절개부의 정면도.3 is a front view of the cable cutout showing an embodiment according to the present invention.
도 4 는 본 발명에 따른 케이블 절개부의 다른 실시예를 보인 측 단면도.Figure 4 is a side cross-sectional view showing another embodiment of a cable cutout according to the present invention.
도 5 는 본 발명에 따른 일 실시예를 보인 작업 공정도.5 is a work flow chart showing an embodiment according to the present invention.
<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>
1 : 광섬유1: optical fiber
2 : 외피 2a : 알류미늄피복 2b: 합성수지피복2: Outer coat 2a: Aluminum coat 2b: Synthetic resin coat
10 : 케이블 공급부 11 : 나팔관10 cable supply unit 11: fallopian tube
20 : 케이블 절개부20 cable cutting
21,21a : 이송로울러 21a: 삽지홈 22,22a : 컷터21,21a: Feeding roller 21a: Insertion groove 22,22a: Cutter
23 : 축경조절구23: shaft diameter adjustment
30 : 광섬유 분리부30: optical fiber separator
31 : 광섬유 분리구 31a: 분리판 32 : 높이조절구31: optical fiber separator 31a: separation plate 32: height control
40 : 외피 박리부 41,42 : 돌기로울러 43 : 축경조절구40: outer skin peeling part 41, 42: as a projection 43: shaft diameter adjustment
50 : 외피 분리부 51 : 가열실50: shell separation unit 51: heating chamber
60 : 분리회수부 61 : 가이드판60: separate recovery portion 61: guide plate
71 : 광섬유 회수통 72 : 알류미늄 회수통 73 : 합성수지 회수통71: optical fiber recovery container 72: aluminum recovery container 73: synthetic resin recovery container
110 : 케이블 공급공정 120 : 케일블 절개공정 130 : 광섬유 분리공정110: cable supply process 120: kale cleavage process 130: optical fiber separation process
140 : 외피 박리공정 150 : 외피 분리공정 160 : 분리회수공정140: skin peeling process 150: skin separation process 160: separation recovery process
이하, 첨부된 도면에 의하여 본 발명에 따른 작업공정을 설명하면 다음과 같다.Hereinafter, the working process according to the present invention with reference to the accompanying drawings.
본 고안 자동화공정을 통하여 폐광케이블로부터 재활용소재인 알류미늄과 합성수지를 신속하고 용이하게 분리 회수할 수 있도록 한 것으로, 일정길이로 절단된 폐광케이블을 공급하는 케이블 공급공정(110)과, 상기 케이블 공급공정(110)을 통하여 공급된 폐광케이블의 일측을 길이 방향으로 연속하여 이송 절개하는 케이블 절개공정(120)과, 상기 케이블 절개공정(120)을 통하여 일측이 길이방향으로 연속하여 절개된 폐광케이블로부터 광섬유(1)를 분리회수하는 광섬유 분리공정(130)과, 상기 광섬유 분리공정(130)을 통하여 광섬유(1)가 분리된 외피(2)의 알류미늄피복층과 합성수지피복층이 연신율의 차이에 의하여 박리되게 한 쌍의돌기로울러(41,42)로 가압하는 외피 박리공정(140)과, 상기 외피 박리공정(140)으로 통하여 박리된 알류미늄피복층과 합성수지피복층이 열팽창율의 차이에 의하여 이격 분리되게 외피(2)를 400~500℃로 가열하는 외피 분리공정(150)과, 상기 외피 분리공정(150)을 통하여 분리된 알류미늄피복(2a)과 합성수지피복(2b)이 별도의 회수함에 분리 회수되게 가이드하여 회수하는 분리회수공정(160)으로 이루어진 것이다.The cable supply process (110) for supplying the waste optical cable cut to a predetermined length and to recover the aluminum and synthetic resin, which is a recycling material from the waste optical cable quickly and easily through the automation process of the present invention, and the cable supply process A cable cutting process 120 for continuously cutting one side of the closed optical cable supplied through the 110 in the longitudinal direction, and the optical fiber from the closed optical cable in which one side is continuously cut in the longitudinal direction through the cable cutting process 120 The optical fiber separation step 130 for separating and recovering (1), and the aluminum coating layer and the synthetic resin coating layer of the outer skin 2 in which the optical fiber 1 is separated through the optical fiber separation step 130 are separated by an elongation difference. The outer skin peeling process 140 pressurized by the pair of protrusions 41 and 42, and the aluminum coated layer and the synthetic resin peeled off through the outer skin peeling process 140. A shell separation process 150 for heating the shell 2 to 400 to 500 ° C. such that the multilayer is separated by a difference in thermal expansion rate, and the aluminum coating 2a and the synthetic resin coating separated through the shell separation process 150. (2b) is composed of a separate recovery process 160 for guiding and recovering the separate recovery box.
한편, 본 발명의 공정에 있어서 외피 분리공정(150) 후 알류미늄피복층과 합성수지피복층이 연신율의 차이에 의하여 안전히 분리되게 외피 박리공정(140)을 반복하여 실시할 수 있는 것이다.On the other hand, in the process of the present invention, after the shell separation step 150, the aluminum coating layer and the synthetic resin coating layer can be repeatedly carried out so that the shell peeling step 140 is safely separated by the difference in elongation.
이하, 본 발명에 따른 회수장치에 대하여 설명하면 다음과 같다.Hereinafter, the recovery device according to the present invention will be described.
상기한 바와 같은 공정으로 이루어진 본 발명은 일정길이로 절단된 폐광케이블을 안내 이송할 수 있게 나팔관(11)으로 이루어진 케이블 공급부(10)와, 상기 케이블 공급부(10)의 나팔관(11)을 통하여 공급된 폐광케이블의 일측을 길이방향으로 절개할 수 있게 원주상에 삽지홈(21a)을 형성하여 통상의 구동장치에 의하여 회동되는 이송로울러(21)에 의하여 이송하며 컷터(22)에 의하여 길이 방향으로 절개하는 케이블 절개부(20)와, 상기 케이블 절개부(20)에서 절개되어 공급된 광케이블의 절개부위 반대측의 광섬유(1)와 외피(2) 사이로 삽입되는 분리판(31a)을 돌출형성한 광섬유 분리구(31)로 이루어진 광섬유 분리부(30)와, 상기 광섬유 분리부(30)에서 분리 배출되는 외피(2)의 알류미늄피복층과 합성수지피복층을 연신율의 차이에 박리시킬 수 있게 외피(2)를 앰보싱 가압하는 한쌍의 돌기로울러(41,42)로 이루어진 외피 박리부(40)와, 상기 외피 박리부(40)에서 박리된 외피(2)의 알류미늄피복층과 합성수지피복층이 열팽창율의 차이에 의하여 완전히 이격 분리되게 가열 이송시키는 가열실(51)로 이루어지 외피 분리부(50)와, 상기 외피 분리부(50)에서 완전히 이격 분리 배출되는 알류미늄피복(2a)과 합성수지피복(2b)이 각각의 회수통으로 분리 회수되게 안내하는 가이드판(61)으로 이루어진 분리회수부(60)로 이루어진 것이다.The present invention made of the process as described above is supplied through the trough tube 11 of the fallopian tube 11 and the trough tube 11 of the cable supply unit 10 to guide the transport of the closed optical cable cut to a certain length The insertion groove 21a is formed on the circumference so as to cut one side of the closed optical fiber cable in the longitudinal direction, and is conveyed by the conveying roller 21 rotated by a conventional driving device, and is cut in the longitudinal direction by the cutter 22. The optical fiber which protruded the cable cutout part 20 which cuts out, and the separating plate 31a inserted between the optical fiber 1 and the sheath 2 on the opposite side of the cutout part of the optical cable cut and supplied from the cable cutout part 20. The outer shell 2 is formed to separate the optical fiber separator 30 formed of the separator 31 and the aluminum coated layer and the synthetic resin coated layer of the shell 2 separated and discharged from the optical fiber separator 30 at a difference in elongation. Am The outer skin peeling part 40 which consists of a pair of projections 41 and 42 pressed by the pressurization, and the aluminum coating layer and the synthetic resin coating layer of the outer skin 2 peeled from the outer skin peeling part 40 completely by the difference of thermal expansion rate The outer shell separation unit 50 consisting of a heating chamber 51 to separate and heat-transfer the separation, and the aluminum coating 2a and the synthetic resin coating 2b which are completely separated and discharged from the outer shell separation unit 50 are recovered. It consists of a separation and recovery portion 60 made of a guide plate 61 for guiding the separation and recovery to the tub.
여기서, 상기 케이블 절개부(20) 이송로울러(21)의 삽지홈(21a)는 폐광케이블의 삽지 이송시 미끄럼 방지를 위하여 다수의 돌기를 형성하여 실시할 수 있으며, 하부에 별도의 하부 이송로울러(21a)를 구비하고 그 전단에 별도의 고정 컷터(22a)를 구비하여 실시할 수 있는 것이다.Here, the insertion groove (21a) of the cable cutting section 20, the feed roller 21 can be carried out by forming a plurality of projections to prevent slipping when inserting the abandoned optical cable, a separate lower feed roller at the bottom ( 21a) and a separate fixed cutter 22a can be provided at the front end.
한편, 상기한 바와 같은 공정에 있어서, 케이블 절개부(20)의 이송로울러(21)와 외피 박리부(40)의 돌기로울러(41,42)는 소재의 굵기와 두께에 따라 축간 거리를 조절할 수 있게 축경조절구(23,43)를 구비하여 실시할 수 있으며, 상기 광섬유 분리부(30)의 광섬유 분리구(31)도 높이를 조절할 수 있게 높이조절구(32)를 구비하여 실시할 수 있는 것이다.On the other hand, in the process as described above, the rollers 41, 42 of the feed roller 21 and the projections of the outer shell peeling portion 40 of the cable cutout portion 20 can adjust the distance between the axes according to the thickness and thickness of the material. It can be carried out by having a shaft diameter adjusting opening (23, 43), the optical fiber separating port 31 of the optical fiber separating unit 30 can also be provided with a height adjusting opening (32) to adjust the height. will be.
또한, 상기 케이블 절개부(20)는 둘 이상의 상이한 규격의 광케이블을 이송 절개할 수 있게 이송로울러(21)에 크기가 상이한 둘 이상의 삽지홈(21a)을 형성하고, 상기 삽지홈(21a)의 갯수에 대응하여 컷터(22)도 동일 수량으로 구비함과 더불어 케이블 공급부(10)의 나팔관(11)도 동일의 수량을 구비하여 실시할 수 있는 것이다.In addition, the cable cutout 20 forms two or more insertion grooves 21a having different sizes in the transfer roller 21 so as to transfer the optical cables of two or more different sizes, and the number of the insertion grooves 21a. Correspondingly, the cutter 22 may be provided in the same quantity, and the fallopian tube 11 of the cable supply part 10 may also be provided with the same quantity.
이하, 본 발명에 의한 폐광케이블로부터 재활용소재인 알류미늄피복과 합성수지피복의 분리 회수과정을 설명하면 다음과 같다.Hereinafter, the separation and recovery process of aluminum coating and synthetic resin coating, which are recycled materials, from the abandoned optical cable according to the present invention will be described.
상기한 바와 같이 케이블 공급부(10)와 케이블 절개부(20), 광섬유 분리부(30), 외피 박리부(40), 외피 분리부(50) 및 분리회수부(60)로 이루어진 본 발명은 일정 길이로 절단된 폐광케이블을 케이블 공급부(10)의 나팔관(11)으로 밀어넣어 케이블 절개부(20)까지 근접시키면, 상기 케이블 절개부(20)의 이송로울러(21)의 삽지홈(21a)에 상기 광케이블이 물리며 이송됨과 더불어 하부에서 회동되는 컷터(22)에 의하여 외피(2)가 절개되게 된다.As described above, the present invention includes a cable supply part 10, a cable cutout part 20, an optical fiber separator 30, an outer skin peeling part 40, an outer skin separating part 50, and a separating recovery part 60. When the closed optical cable cut into length is pushed into the fallopian tube 11 of the cable supply part 10 and closes to the cable cutout 20, it is inserted into the insertion groove 21a of the feed roller 21 of the cable cutout 20. The shell 2 is cut by the cutter 22 which is rotated at the bottom while the optical cable is pinched and transported.
이상과 같이 절개된 광케이블을 상기 케이블 절개부(20)의 이송로울러(21)에 의하여 계속하여 이송되다가 광섬유 분리부(30)의 광섬유 분리구(31)에서 돌출 형성되어 광섬유(1)와 외피(2) 사이로 파고드는 분리판(31a)에 의하여 광섬유(1)가 광섬유 회수통(71)으로 분리 회수되는 것이다.The optical cable cut as described above is continuously transferred by the feed roller 21 of the cable cutout 20, and is formed to protrude from the optical fiber splitter 31 of the optical fiber splitter 30 so that the optical fiber 1 and the shell ( 2) The optical fiber 1 is separated and recovered to the optical fiber recovery container 71 by the separating plate 31a penetrated therebetween.
그리고, 상기한 바와 같이 광섬유(1)가 분리된 외피(2)는 계속하여 이송되다가 회동되는 외피 박리부(40)의 돌기로울러(41,42)에 의하여 앰보싱 가압되고 이 과정에 연신율 편차에 의하여 알류미늄피복층과 합성수지피복층이 박리되며, 이상과 같이 알류미늄피복층과 합성수지피복층이 박리된 외피(2)는 400~500℃로 외피 분리부(50)의 가열실(51)을 통과하며 열팽창율의 차이에 의하여 완전히 이격 분리되게 되며, 완전히 이격 분리된 알류미늄피복(2a)과 합성수지피복(2b)은 분리회수부(60)의 가이드판(61)에 의하여 각각의 알류미늄 회수통(72)과 합성수지 회수통(73)으로 분리회수되게 되는 것이다.As described above, the outer shell 2 in which the optical fiber 1 is separated is continuously embossed and pressed by the projections 41 and 42 of the outer shell peeling unit 40 which is transported and rotated. By this, the aluminum coating layer and the synthetic resin coating layer are peeled off, and the outer skin 2 from which the aluminum coating layer and the synthetic resin coating layer are peeled off is passed through the heating chamber 51 of the skin separating part 50 at 400 to 500 ° C., and the difference in thermal expansion rate. The aluminum coating (2a) and the synthetic resin coating (2b) is completely separated by each of the aluminum recovery container 72 and the synthetic resin recovery container by the guide plate 61 of the separate recovery section 60 It will be separated and recovered to (73).
한편, 사용과정에 있어 공급되는 폐광케이블의 굵기가 상이해질 경우에는 케이블 절개부(20)와 외피 박리부(40)의 축경조절구(23,43)를 조절하여 이송로울러(21)와 컷터(22) 및 돌기로울러(41,42) 사이의 거리를 조절하므로서 굵기에 관계없이 모든 폐광케이블로부터 재활용소재를 분리 회수할 수 있는 것이다.On the other hand, when the thickness of the closed optical cable supplied in the use process is different, the feed roller 21 and the cutter (2) by adjusting the shaft diameter adjusting holes (23, 43) of the cable cutout 20 and the outer shell peeling (40) 22) and by adjusting the distance between the rollers (41, 42) it is possible to separate and recover the recycled material from all the abandoned optical cable regardless of the thickness.
따라서, 본 발명은 폐광케이블로부터 광섬유와 재활용소재를 분리회수하므로서 소각으로 인한 환경오염의 방지함과 더불어 상기 분리회수과정이 자동화공정으로 이루어지므로 작업성이 향상되는 매우 유용한 것이다.Therefore, the present invention is very useful to improve the workability because the separation and recovery process is made of an automated process while preventing the environmental pollution due to incineration by separating and recovering the optical fiber and the recycled material from the waste optical cable.
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| Application Number | Priority Date | Filing Date | Title |
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| KR10-2001-0015385A KR100391749B1 (en) | 2001-03-24 | 2001-03-24 | Recycling-material separation recovery equipment of waste optical-fiber cable |
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| KR10-2001-0015385A KR100391749B1 (en) | 2001-03-24 | 2001-03-24 | Recycling-material separation recovery equipment of waste optical-fiber cable |
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| KR100391749B1 true KR100391749B1 (en) | 2003-07-12 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100892880B1 (en) | 2007-05-31 | 2009-04-15 | (주)티에이치엔 | Apparatus for preventing separation of a peeled portion of wiring |
| KR101070458B1 (en) | 2011-03-24 | 2011-10-06 | 성광모 | The regenerative apparatus and method of the waste optical cable |
| KR101329096B1 (en) * | 2013-05-16 | 2013-11-14 | 이석재 | Separation apparatus for optical cable covering |
| KR101949965B1 (en) * | 2018-04-30 | 2019-02-21 | (주)모두의환경 | Apparatus for Separating Waste Wire and Recovery System of Useful Resources Comprising the Same |
| KR20200078926A (en) * | 2018-12-24 | 2020-07-02 | 주식회사 건양기술공사 건축사사무소 | Resource recovery apparatus for recycling waste optical fiber cables |
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| KR101039209B1 (en) * | 2011-02-11 | 2011-06-03 | 이경호 | Device and method for stripping optical fiber cable |
| KR101589049B1 (en) | 2015-01-19 | 2016-01-27 | 주식회사 제이메탈 | Method for recycling waste optical fiber |
| CN107658076B (en) * | 2016-05-13 | 2019-10-29 | 江苏锡沂高新区科技发展有限公司 | A kind of innoxious recycling equipment of cable |
| KR101848306B1 (en) * | 2017-10-23 | 2018-04-12 | 신유호 | Peeling machine for optical fiber cable |
| KR101968564B1 (en) * | 2017-10-25 | 2019-04-12 | 주식회사 대광그린텍 | Separating system for outer cladding of waste optical cable |
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2001
- 2001-03-24 KR KR10-2001-0015385A patent/KR100391749B1/en not_active IP Right Cessation
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100892880B1 (en) | 2007-05-31 | 2009-04-15 | (주)티에이치엔 | Apparatus for preventing separation of a peeled portion of wiring |
| KR101070458B1 (en) | 2011-03-24 | 2011-10-06 | 성광모 | The regenerative apparatus and method of the waste optical cable |
| KR101329096B1 (en) * | 2013-05-16 | 2013-11-14 | 이석재 | Separation apparatus for optical cable covering |
| KR101949965B1 (en) * | 2018-04-30 | 2019-02-21 | (주)모두의환경 | Apparatus for Separating Waste Wire and Recovery System of Useful Resources Comprising the Same |
| KR20200078926A (en) * | 2018-12-24 | 2020-07-02 | 주식회사 건양기술공사 건축사사무소 | Resource recovery apparatus for recycling waste optical fiber cables |
| KR102223404B1 (en) * | 2018-12-24 | 2021-03-05 | 주식회사 건양기술공사 건축사사무소 | Resource recovery apparatus for recycling waste optical fiber cables |
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|---|---|
| KR20010044779A (en) | 2001-06-05 |
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