KR100917856B1 - Reproducing method of wast e.p.s - Google Patents
Reproducing method of wast e.p.s Download PDFInfo
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- KR100917856B1 KR100917856B1 KR20080129118A KR20080129118A KR100917856B1 KR 100917856 B1 KR100917856 B1 KR 100917856B1 KR 20080129118 A KR20080129118 A KR 20080129118A KR 20080129118 A KR20080129118 A KR 20080129118A KR 100917856 B1 KR100917856 B1 KR 100917856B1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
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- C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
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Abstract
Description
본 발명은 폐 E.P.S. 재생방법에 관한 것이다The present invention is a lung E.P.S. It is about regeneration method
일반적으로 폐 발포 폴리스티렌(이하, EPS)을 재생 처리하는 주된 방법은 분쇄를 거친 후 세척하여 열 또는 압력을 이용한 처리방식으로 처리함으로서, 폐 EPS 수거부터 최종처리과정까지 많은 고정비용과 인력의 투입으로 비효율적이고, 또한 생산 설비투자가 노동력에 비하여 그 효과가 미비하여 적극적인 재활용을 하지 못하는 실정이다In general, the main method of recycling waste foamed polystyrene (hereinafter referred to as EPS) is crushed, washed, and treated by heat or pressure, which requires a lot of fixed costs and manpower from waste EPS collection to final treatment. Inefficient, and investment in production equipment is inefficient compared to the labor force, and active recycling is not possible.
그 이유는 현재 국내에서 최종 처리된 재생수지(Pellet type)의 물성이 원자재와 비교하여 50~60%밖에 되지 않으므로 재생되어진 PS수지들은 원자재와 혼합하여 부가가치가 낮은 상품을 제조하는 원료로서 제한적으로 이용되고 있기 때문이다. 이와 같은 기존의 처리방식은 국가적 차원의 자원절약이나 수입 대체효과, 환경보존 측면의 어느 하나도 충족시키지 못하고 있다The reason for this is that the properties of the final processed pellet type in Korea are only 50 ~ 60% compared to the raw materials, so the recycled PS resins are used as a raw material for producing low value-added products by mixing with raw materials. Because it is. Such existing treatments do not satisfy any of national resource savings, import substitution effects, and environmental conservation aspects.
그리고 종래의 경우, 염분이 많은 폐EPS, 예를 들어 바다에서 사용하는 부자 등은 염분이나 해초가 붙어 있는 것과 그리고 잉크, 난연재가 포함된 것들은 재활용할 수 없다. In the conventional case, salty waste EPS, for example, rich people used in the sea, cannot be recycled with salt or seaweed, and ink and flame retardant.
특히 2002년도부터 일본, 미국 및 유럽에서는 용매 처리 방법을 이용하기는 하나, 원자재의 물성과 비교하여 현저히 떨어지는 물성을 가진 재생수지를 생산하고 있다. 이들이 사용하고 있는 용매는 이염기유기산 에스테르들, 아민과 디올로 이루어져있으며 용매의 안정제가 없어 장기간 보관하기 위하여서는 각별한 주의를 요한다. 이들은 냄새 및 화재의 위험성이 있고, 인체에 유해하며 고가이며 난연재 처리된 것은 녹일 수 없는 단점이 있다In particular, Japan, the United States, and Europe have been using recycled resins since 2002, but have produced recycled resins with significantly lower physical properties compared to those of raw materials. The solvents used are composed of dibasic organic acid esters, amines and diols, and require no special care for long-term storage as there are no solvent stabilizers. They have the risk of odor and fire, harmful to human body, expensive and flame retardant treatment can not melt.
또한 기존에 사용하고 있는 리모넨 용액은 후술하는 본 발명의 용매보다 가격이 무려 5배나 높으므로, 경제적 실용성 측면에서 많이 떨어지는 상황이다.In addition, the limonene solution used in the past is 5 times higher in price than the solvent of the present invention to be described later, the situation is much lower in terms of economic practicality.
본 발명은 상기한 점을 감안하여 발명한 것으로, 냄새 및 화재의 위험성이 없고 인체에 무해한 친환경적 물질을 이용하여 폐 EPS 을 용해처리하여 재생하는 방법과 용해 처리하기 위한 장치를 제공함에 본 발명의 목적이 있다The present invention has been invented in view of the above, and provides a method for dissolving and regenerating waste EPS by using an environmentally friendly material that is free of odor and fire and is harmless to humans. There is this
그 방법적인 것을 요약하면, 부피가 큰 폐 EPS을 잘게 분쇄한 후 용매에 투입 교반하여 녹임으로 겔(GEL) 상태의 수득물을 생성시키고 폐 EPS수거 시 부피를 1/100~1/50으로 줄임으로 수거를 위한 운송 비용 등을 줄이는 효과가 있고, 수거하 여 용해되어진 폐 EPS를 냉각하여 응고시키고 물로서 잔류용매를 회수하며 원심분리방식을 통해 물과 용매를 분리 후, 물과 용매를 리싸이클링해서 재사용한다. 이후 PS는 압출기로 가늘게 압출시켜서 짧게 절단하여 펠렛(Pallet) 상태로 만들어 순 제품대비 물성 및 순도면에서 98%이상의 효과를 나타낸다To summarize the method, the bulky waste EPS was finely pulverized and then stirred in a solvent to dissolve to produce a gel (GEL) product, and the volume was reduced to 1/100 to 1/50 when the waste EPS was collected. It has the effect of reducing the transportation cost for collection, cooling the solid waste dissolved EPS and solidifying it, recovering residual solvent as water, separating water and solvent through centrifugation, and recycling water and solvent. Reuse After that, PS is extruded thinly with an extruder and cut into short pellets to make pellets, which shows more than 98% of physical properties and purity compared to pure products.
본 발명의 주요 구성은, 농도 60 ~ 65%의 디메틸 글루타레이트, 농도 10-30%의 디메틸 아디페이트(Dimethyl adipate), 농도 10-30%의 디메틸 석시네이트(Dimethyl succinate)가 포함된 용액을 준비하는 용매 준비단계; 폐 EPS를 파쇄하는 단계; 파쇄된 EPS를 용해시켜 공기와 PS를 분리하는 단계; 분리된 PS를 냉각시켜 겔화 시키는 단계; 겔화된 PS를 물속에 투입하여 PS에 잔류하는 용액을 세척하는 단계; 세척된 PS를 압축하는 단계; 압축된 PS를 압출시키는 단계; 압출된 PS 를 절단하는 단계; 절단된 PS를 건조하는 단계; 를 포함하는 것을 특징으로 하며, 상기한 EPS가 상기한 용매에서 원활한 용해를 위해, 용매를 섭씨 30도~70도로 가열하는 것을 특징으로 하며, 상기한 용해된 PS를 겔화 시키기 위하여 섭씨 -10도 ~ 10도로 냉각시키는 것을 특징으로 하며, 상기한 겔화된 PS를 물속에 투입하여 PS에 잔류하는 용매액을 세척하는 단계에서, 세척한 물과 세척 후에 발생된 용매를 비중차이를 이용하여 원심분리 방법으로 분리하여, 용매와 물을 재사용하는 단계를 포함하는 것을 특징으로 하며, 상기한 PS를 압출시키는 단계에서 압출되어 나오는 PS 는, 바로 물속에 투입되어 세척하며, 세척시 발생되는 용매와 물은 비중 차이를 이용하여 원심분리 방법으로 분리하여, 재사용하는 것을 특징으로 하며, 이에 사용되는 장치는, 차량 내부에 설치하며 폐EPS를 수용하는 투입장치(5)와, 투입장치(5) 내부에 설치되며 분쇄날(8)을 갖춘 분쇄장치(1)와, 분쇄장치(1)에서 분쇄된 폐EPS를 수용하며 내부에는 폐EPS 를 용해시키는 용매가 수용되어 있는 용매탱크(2)와, 용매탱크(2) 내에 설치되며 모터(6)에 의해 폐EPS를 교반하는 교반기(3)를 포함하는 것을 특징으로 한다. The main configuration of the present invention, a solution containing a dimethyl glutarate of 60-65% concentration, dimethyl adipate of 10-30% concentration, dimethyl succinate of 10-30% concentration Solvent preparation step of preparing; Crushing the lung EPS; Dissolving the broken EPS to separate air from the PS; Cooling and gelling the separated PS; Pouring the gelled PS into water to wash the solution remaining in the PS; Compressing the washed PS; Extruding the compressed PS; Cutting the extruded PS; Drying the cut PS; Characterized in that it comprises, wherein the EPS is a solvent for smooth dissolution in the solvent, characterized in that for heating the solvent to 30 degrees to 70 degrees, in order to gel the dissolved PS is -10 degrees Celsius ~ It is characterized in that the cooling to 10 degrees, in the step of washing the solvent solution remaining in the PS by adding the gelled PS in water, the washed water and the solvent generated after washing by centrifugation method using a specific gravity difference. And separating and reusing the solvent and water, wherein the PS extruded in the step of extruding the PS is directly put into the water and washed, and the solvent and water generated during washing differ in specific gravity. Separating by centrifugal separation method using, characterized in that for reuse, the apparatus used for this, is installed in the vehicle and the input device (5) for receiving the waste EPS, A solvent tank installed inside the
본 발명에 의하면, 적은 비용으로 재생 가능하며, 재생된 물성이 원자재와 비교하여 별 차이가 없다According to the present invention, it can be regenerated at low cost and there is no difference in the regenerated physical properties compared to the raw materials.
또한 용매가 인체에 무해한 환경친화적이어서 작업상 안전하다. 그리고 종래의 경우, 재활용할 수 없었던 염분이 많은 폐EPS, 예를 들어 바다에서 사용하는 부자 등도 녹인 후, 용액에 탈염재 등을 투입하여 재활용할 수 있다. 그리고 잉크가 인쇄된 것도 용해 처리 후 용매에 잔류하는 잉크를 제거한 후 재활용할 수 있다In addition, the solvent is environmentally friendly, harmless to the human body, so it is safe for operation. In the conventional case, waste EPSs containing a large amount of salt that could not be recycled, for example, rich people used in the sea, may be dissolved, and then demineralized materials may be added to the solution for recycling. In addition, the ink printed can be recycled after removing the ink remaining in the solvent after dissolution treatment.
또한 난연재가 포함된 폐EPS 도 상기와 유사한 방법으로 처리하여 재활용할 수 있어 용매 재활용율이 매우 높고 폐EPS 재활용율을 극대화시킬 수 있다In addition, waste EPS containing flame retardant can be recycled by treating it in a similar manner as above, so solvent recycling rate is very high and waste EPS can be maximized.
또한 본 발명에 의하면 폐EPS를 용매에 녹여서 운송하므로 종래에 비해 그 그 부피를 약 1/50~1/100 로 감축시킬 수 있다.In addition, according to the present invention, since the waste EPS is transported by dissolving it in a solvent, its volume can be reduced to about 1/50 to 1/100 as compared with the conventional method.
본 발명에서 사용되는 용매는 거의 100% 가까이 회수하여, 재사용 가능하며 인화점이 높아서 화재발생의 위험이 낮다. 또한 겔화 된 수지의 보관 및 이동이 용 이하다.The solvent used in the present invention can be recovered almost 100%, reusable and have a high flash point to lower the risk of fire. It is also easy to store and transport the gelled resin.
본 발명에 의하면, 고열의 가열 과정이 없어 재활용 처리 과정에서 발생하는 악취가 발생하지 않으며, 폐기물 처리량의 감소로 인한 토양, 수질오염 감소, 매립, 소각으로 인한 2차 환경오염 감소, PS의 소각으로 발생하는 환경유해 물질의 발생을 완전히 줄일 수 있다According to the present invention, there is no high-temperature heating process, there is no odor generated during the recycling process, the soil, water pollution reduction, landfill, secondary secondary pollution reduction due to landfill, incineration due to the reduction of waste throughput, incineration of PS The generation of environmentally harmful substances can be completely reduced.
이하, 본 발명을 첨부 도면에 의거 더욱 구체적으로 상술한다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.
도 1 에서 보듯이, 폐EPS를 먼저 파쇄한다As shown in Figure 1, the waste EPS is first broken up.
그리고 용매에 투입하여 용해시킨다And dissolve in solvent
EPS는 PS 수지에 펜탄이나 부탄등 탄화수소 가스를 주입시킨 뒤 이를 증기로 부풀린 발포 제품으로 98%가 공기와 나머지 2%의 PS로 이루어져 있다.EPS is a foamed product injecting hydrocarbon gas, such as pentane or butane, into the PS resin and then inflating it with steam, consisting of 98% air and the remaining 2% PS.
본 발명에서 사용되는 용매는 농도 55-65%, 바람직하기로는 60 ~65%의 디메틸 글루타레이트, 농도 10-30%의 디메틸 아디페이트(Dimethyl adipate), 농도 10-30%의 디메틸 석시네이트(Dimethyl succinate)가 포함된 용액을 준비한다The solvent used in the present invention is 55-65% concentration, preferably 60-65% dimethyl glutarate, 10-30% dimethyl adipate, 10-30% dimethyl succinate ( Prepare a solution containing dimethyl succinate
디메틸 글루타레이트의 농도가 상기 범위 이상이면 용해된 폐EPS가 재융합이 안되는 단점이 생기고 그 범위 이하이면 폐EPS의 용해 속도가 떨어진다. 디메틸 아디페이트(Dimethyl adipate)과 디메틸 석시네이트(Dimethyl succinate)은 디메틸 글루타레이트의 폐EPS 용해 보조제로, 상기 범위가 이상이거나 이하이면 디메틸 글루타레이트의 용해 활성화에 오히려 역효과를 낸다If the concentration of dimethyl glutarate is above the above range, there is a disadvantage in that the dissolved waste EPS is not refused, and if it is below that range, the rate of dissolution of the waste EPS is lowered. Dimethyl adipate and dimethyl succinate are waste EPS dissolution auxiliaries of dimethyl glutarate, and if above or below this range, have an adverse effect on the dissolution activation of dimethyl glutarate.
디메틸 글루타레이트 : 디메틸 아디페이트(Dimethyl adipate) : 디메틸 석시네이트(Dimethyl succinate)의 혼합 부피 비는 6:3:1 로 혼합한다. 상기한 혼합 부피 비율은 역시, 용해 활성화에 있어 최적의 비율이다. 한 물질이 상기비율 이상이거나 이하이면 전체적인 폐 EPS의 용해 비율이 떨어진다Dimethyl glutarate: Dimethyl adipate: Dimethyl succinate The mixing volume ratio is 6: 3: 1. The above mixed volume ratio is also the optimum ratio for dissolution activation. If one substance is above or below the above ratio, the overall rate of dissolution of the waste EPS is lowered.
상기한 물질들은 각각 및 혼합시에도 인체에 무해하다The above substances are harmless to the human body even when mixed with each other.
상기한 물질이 혼합된 조성 용매는, 폐 EPS에서 PS를 보다 용이하게 분리할 수 있게 폐EPS를 겔화시켜 주므로, 용액에서 분리를 쉽게 하여 준다.The composition solvent in which the above-described materials are mixed makes gelation of the waste EPS so that the PS can be more easily separated from the waste EPS, thereby making it easier to separate from the solution.
일부 외국에 공지된 기술로 용매에 녹여 겔상으로 만드는 방법이 있기는 하나 이 경우 겔상으로 있는 PS에서 용매를 제거하여야 하는데, 이 경우, 겔 상의 수지의 접착성으로 인해 용매 제거가 어렵다. 따라서 섭씨 250도 이상의 높은 온도로 가열하여 겔상의 수지에서 용매를 제거하는데 이렇게 되면 단점은 수지가 변성되어 수지의 물성이 저하된다.Although there is a method known in some foreign countries to dissolve in a solvent to make a gel, in this case, it is necessary to remove the solvent from the PS in the gel form, in which case it is difficult to remove the solvent due to the adhesiveness of the resin on the gel. Therefore, the solvent is removed from the gel-like resin by heating to a high temperature of 250 degrees Celsius or more, the disadvantage is that the resin is modified to lower the physical properties of the resin.
본 발명은 외부에서 가열하는 방법이 아니라 수지분자와 용매 분자들 사이의 자연적인 힘을 이용하는 방법이다. 즉, 겔 상태에 있는 용매분자들은 수지의 약한 힘으로 수지에 갇혀있다. 이러한 힘보다 용매분자와 어떤 물질의 분자 사이에 더 큰 힘이 작용하면 용매분자는 이러한 물질로 이동함으로써 겔 상에 있는 용매분자들이 제거된다. 이러한 방법은 자연적인 힘에 의한 것이므로 수지에 아무런 영향이 없으므로 고품질(고순도)의 수지를 재생시킨다.The present invention is not a method of heating externally but a method of using a natural force between the resin molecules and the solvent molecules. That is, the solvent molecules in the gel state are trapped in the resin by the weak force of the resin. If a greater force is applied between the solvent molecule and a molecule of a substance than this force, the solvent molecule moves to this substance to remove the solvent molecules on the gel. Since this method is caused by natural force, it has no effect on the resin, thereby regenerating high quality (high purity) resin.
한편, 본 발명에 따라 EPS가 상기한 용매에서 원활한 용해를 위해, 용매를 섭씨 30도~70도로 약하게 가열하면 용해를 더욱 촉진시킬 수 있다. 이 가열 온도는 섭씨 100도 이하의 저온이므로 냄새 발생 등의 염려가 전혀 없다.On the other hand, in accordance with the present invention, for smooth dissolution in the above-described solvent, if the solvent is gently heated to 30 to 70 degrees Celsius can further promote dissolution. Since this heating temperature is low temperature of 100 degrees Celsius or less, there is no concern about occurrence of smell.
그리고 상기한 용해된 PS를 겔화 시키기 위하여 섭씨 -10도 ~ 10도로 냉각시킨다. 그리고 겔화된 PS를 물속에 투입하여 PS에 잔류하는 용액을 세척한다And it is cooled to -10 degrees Celsius ~ 10 degrees Celsius to gel the dissolved PS. The gelled PS is added to water to wash the solution remaining in the PS.
상기한 겔화된 PS를 물로 세척하여 PS에 잔류하는 용매액을 세척한다The gelled PS is washed with water to wash the solvent solution remaining in the PS.
세척 방법은 물탱크 속에 투입하거나 겔화된 PS가 메쉬컨베이어 상을 이동하면서 세척되게 하는 등 여러 형태로 구성할 수 있다. 세척한 물과 세척 후에 발생된 용매를 분류 증류하거나 비중차이를 이용하여 원심분리하거나 공지의 기계적 분리 장치를 이용한 사이클론 방식으로 분리하는 등 여러 방법으로 분류하여 용매와 물을 거의 100% 재사용할 수 있다The cleaning method can be configured in various forms, such as being placed in a water tank or allowing the gelled PS to be washed while moving on a mesh conveyor. The washed water and the solvent generated after washing can be sorted by various methods, such as fractional distillation, centrifugation using specific gravity difference, or cyclone separation using a known mechanical separation device.
그리고 세척된 PS를 압축하여 압출기에 투입하여 PS를 압출시킨다The compressed PS is compressed and put into an extruder to extrude the PS.
상기한 PS를 압출시키는 단계에서 압출되어 나오는 PS 는, 바로 물속에 투입되어 구성하여, 압출과 동시에 세척되게하며, 세척시 발생되는 용매와 물은 상기와 마찬가지 방법으로 분리하여 거의 100% 재사용할 수 있다PS extruded in the step of extruding the PS, it is put directly into the water is configured to be washed at the same time as the extrusion, and the solvent and water generated during washing can be separated in the same manner as above and reused almost 100% have
이렇게 하면 재생 공정에서 소요되는 재료비를 최소화 할 수 있다This minimizes material costs in the regeneration process.
그리고 압출된 PS 를 절단기로 가져가 원하는 소정의 펠릿 크기로 절단한다The extruded PS is taken to a cutter and cut into desired pellet sizes.
그리고 마지막으로 절단된 PS를 섭씨 70도 이하의 온도에서 건조하여 포장한다. 건조 온도가 저온이어서 냄새 등이 발생하지 않는다Finally, the cut PS is dried and packaged at a temperature of 70 degrees Celsius or less. Odor does not occur because drying temperature is low
상기한 공정의 단계들은 기계설비를 이용하여 모두 간단히 자동화 할 수 있다. 상기한 과정에서 용매 및 물은 거의 100%회수가 가능하며 낮은 온도에서 건조하므로 재생수지의 변성이 일어나지 않는다. 실험한 결과 재생수지의 품질이 원 수지의 물성에 비교하여 98%이상으로 확인되었다.The steps of the above process can all be automated simply using a machine. In the above process, the solvent and water can be recovered almost 100% and dried at a low temperature, so that no modification of the recycled resin occurs. As a result of the experiment, the quality of the recycled resin was confirmed to be more than 98% compared to that of the original resin.
용매와 물은 분류 후, 반복 사용된다. Solvent and water are used repeatedly after fractionation.
종래의 열처리 방법은 PS의 악취가 심하나 본 발명에 따른 방법은 처리 과정이 고온이 불필요하여 냄새가 나지 않고 생산 현장이 매우 청결하다.In the conventional heat treatment method, the odor of PS is severe, but the method according to the present invention does not need high temperature, so no smell occurs and the production site is very clean.
최근에는 난연성 EPS가 생산되고 있는데, 이러한 난연성 EPS는 화학약품에 의하여 처리된다. 난연성 EPS에서 PS수지를 재생하기 위해서는 화학약품을 분리하여야 한다. 종래의 방법으로 분리하기 위하여서는 추가적인 공정들이 필요하지만 본 방법은 추가공정이 필요 없이 바로 분리시킬 수 있다.Recently, flame retardant EPS has been produced, which is processed by chemicals. The chemicals must be separated to recover the PS resin from the flame-retardant EPS. In order to separate by the conventional method requires additional processes, but the method can be separated immediately without the need for additional processes.
한편, 본 발명에서는 폐EPS를 재생하는 장치와 이송하는 기기도 함께 발명하였는데, 도 2 에서 보듯이, 차량의 탱크(10) 내에 설치하여 폐EPS를 수용하는 투입장치(5)와, 투입장치(5) 내부에 설치되며 분쇄날(8)을 갖춘 분쇄장치(1)와, 분쇄장치(1)에서 분쇄된 폐EPS를 수용하며 내부에는 폐EPS 를 용해시키는 용매가 수용되어 있는 용매탱크(2)와, 용매탱크(2) 내에 설치되며 모터(6)에 의해 폐EPS를 교반하는 교반기(3)를 포함한다Meanwhile, in the present invention, the apparatus for regenerating waste EPS and the apparatus for transferring the same are also invented, but as shown in FIG. 2, an
그 외 세부적인 구성은 여러 형태로 만들 수 있으므로 여기에서 구체적으로 설명하지 않는다. 추후 차량 내의 구체화된 장치는 추가로 특허 출원하고자 한다. Other detailed configurations may be made in various forms and thus are not described in detail herein. Subsequently, the device embodied in the vehicle further seeks to file a patent.
삭제delete
삭제delete
도 1 은 본 발명에 따른 제조 방법을 설명하기 위한 도면1 is a view for explaining a manufacturing method according to the present invention
도 2 는 본 발명에 따른 장치가 차량에 구성된 예를 설명하기 위한 도면2 is a view for explaining an example in which a device according to the present invention is configured in a vehicle;
Claims (6)
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| KR20080129118A KR100917856B1 (en) | 2008-12-18 | 2008-12-18 | Reproducing method of wast e.p.s |
| BRPI0918354A BRPI0918354A2 (en) | 2008-12-18 | 2009-12-15 | expanded polystyrene waste recycling process (eps) |
| PCT/KR2009/007484 WO2010071336A2 (en) | 2008-12-18 | 2009-12-15 | Method for waste eps recycling |
| CN2009801512042A CN102256760B (en) | 2008-12-18 | 2009-12-15 | Method for waste eps recycling |
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| KR20030012577A (en) * | 2001-08-01 | 2003-02-12 | 정진용 | A Mobile System of Devices for Crushing and Recycling Waste Styrofoam with Vehicle |
| KR20030048499A (en) * | 2001-12-12 | 2003-06-25 | (주) 빅텍 | The noble method of formulating the volume reducing agent to recycle the formed polystyrene in a higher efficient and economic way, using the surface active agent |
| KR100756313B1 (en) * | 2005-10-15 | 2007-09-07 | 한국화학연구원 | Regeneration system of wasted styrene foam |
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| JPS5854012B2 (en) * | 1976-06-28 | 1983-12-02 | 新日本工缶株式会社 | Method for producing expandable impregnated polystyrene granules from waste of expanded polystyrene moldings |
| CN1061420A (en) * | 1990-11-16 | 1992-05-27 | 刘宏仁 | A kind of process for recovery and regeneration of waste plastics |
| JP3026415B2 (en) * | 1995-05-15 | 2000-03-27 | 生研化学株式会社 | Styrofoam processing method |
| CN1045782C (en) * | 1996-05-15 | 1999-10-20 | 山东建筑材料工业学院 | Low-temp recovery technique for waste plastics of polyvinyl-chloride and polythene |
| DE60123231T2 (en) * | 2000-03-15 | 2007-09-27 | Kagoshimaken | METHOD FOR PRODUCING RECYCLED, EXPANDED POLYSTYRENE RESIN PARTICLES |
| KR20020090503A (en) * | 2001-05-28 | 2002-12-05 | 박병식 | Reclaiming method for used styrofoam |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20030012577A (en) * | 2001-08-01 | 2003-02-12 | 정진용 | A Mobile System of Devices for Crushing and Recycling Waste Styrofoam with Vehicle |
| KR20030048499A (en) * | 2001-12-12 | 2003-06-25 | (주) 빅텍 | The noble method of formulating the volume reducing agent to recycle the formed polystyrene in a higher efficient and economic way, using the surface active agent |
| KR100756313B1 (en) * | 2005-10-15 | 2007-09-07 | 한국화학연구원 | Regeneration system of wasted styrene foam |
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| KR20210110956A (en) | 2020-03-02 | 2021-09-10 | 대웅수지 주식회사 | Method of separating polystyrene from waste expanded polystyrene |
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| CN102256760A (en) | 2011-11-23 |
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