摘要:
A sorting member with an optimized surface shape is adopted to pressurize a mixture heated on the sorting member to allow a melted resin mixed in the mixture to adhere to the sorting member to sort the resin from an unmelted resin. Thus, resin materials are sorted and recovered from unwanted home electric appliances and the like at a high purity.
摘要:
A separation object including at least two types of resins with different glass transition temperatures (glass transition temperature of a first resin 1
摘要:
In today's environment, it is becoming increasingly more important to recycle plastics including polyethylene terephthalate. Technology available today allows for polyethylene terephthalate to be recycled into a wide variety of useful products. For instance, carbonated beverage bottles which are comprised of polyethylene terephthalate can be recycled into new polyethylene terephthalate beverage bottles. However, a relatively pure polyethylene terephthalate post consumer feed stream is required in many such recycling programs. Unfortunately, such feed streams are often contaminated with foreign material. This invention relates to a process for removing foreign materials from a post-consumer polyethylene terephthalate feed stream which comprises: (1) depolymerizing the polyethylene terephthalate feed stream into a melt having a melt viscosity which is within the range of 0.001 poise to 1000 poise, (2) feeding the melt into a separation device, (3) allowing low density foreign materials to float to the surface of the melt, (4) allowing high density foreign materials to sink to the bottom of the melt, and (5) removing molten polyethylene terephthalate oligomer from an area which is located intermediately between the surface of the melt and the bottom of the melt.
摘要:
A method for separating materials of various type having different softening temperature values, includes pouring a mixture of flakes and fragments of materials on a movable receiving and conveying device in a uniformly distributed manner and advancing it along a first portion of path; actuating an electromagnetic inductor to heat an outer metal surface by electromagnetic induction, which surface is included in the movable receiving and conveying device to achieve a first lower softening temperature corresponding to a first material of the mixture; subjecting the mixture to a separating action during which a first fraction, remains stuck to the outer metal surface, whereas a remaining second fraction of materials having higher softening temperatures than the first softening temperature freely slips by gravity towards a lower receiving zone.
摘要:
A plastic bottle processing apparatus includes: an apparatus body having a conveying path section in which a plastic bottle is conveyed; and a label separating unit arranged in a middle of the conveying path section so as to separate a label from the plastic bottle. The label separating unit includes: a label cutting member that cuts the label of the plastic bottle, which is conveyed in the conveying path section along the axial direction of the plastic bottle; a heating member that heats the label cut by the label cutting member; and a brush member disposed so as to be able to make contact with the label heated by the heating member and remove the label from the plastic bottle body by making contact with the label.
摘要:
A method of separating foreign polymers from a polymer mixture that comprises amorphous PET particles and crystalline PET particles, wherein the softening point of the foreign polymers is lower than that of the crystalline PET particles, and wherein the method includes separating the amorphous PET particles from the polymer mixture, heating the resulting polymer mixture to a temperature between the softening point of the foreign polymers and that of the crystalline PET particles, and separating the foreign polymers from the resulting polymer mixture. Also, a device for separating foreign polymers from a polymer mixture that comprises amorphous PET particles and crystalline PET particles, the device including a first separation unit for separating the amorphous PET particles from the polymer mixture, and a second separation unit for separating the foreign polymers from the resulting polymer mixture.
摘要:
A system for segregating trash into discrete fractions including a separator assemblage consisting of a staggered multiple-tiered heated belt system or separating thermoplastic materials from other substances. Each heated belt unit is modular and seated in a frame. Each unit comprises a continuous belt reeved about a driven and a driving rotor disposed in space relationship to each other and having a unique heating element disposed therein.
摘要:
A method of separating foreign polymers from a polymer mixture that comprises amorphous PET particles and crystalline PET particles, wherein the softening point of the foreign polymers is lower than that of the crystalline PET particles, and wherein the method includes separating the amorphous PET particles from the polymer mixture, heating the resulting polymer mixture to a temperature between the softening point of the foreign polymers and that of the crystalline PET particles, and separating the foreign polymers from the resulting polymer mixture. Also, a device for separating foreign polymers from a polymer mixture that comprises amorphous PET particles and crystalline PET particles, the device including a first separation unit for separating the amorphous PET particles from the polymer mixture, and a second separation unit for separating the foreign polymers from the resulting polymer mixture.
摘要:
The present invention relates to a process for separating two or more components of a plastic material for the purposes of recycling, with particular application to purifying poly(ethylene terephthalate) (PET) during recycling procedures. The process comprises contacting a quantity of the plastic material with one or more discrete pre-heated particles.
摘要:
A sorting member with an optimized surface shape is adopted to pressurize a mixture heated on the sorting member to allow a melted resin mixed in the mixture to adhere to the sorting member to sort the resin from an unmelted resin. Thus, resin materials are sorted and recovered from unwanted home electric appliances and the like at a high purity.