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Plastic waste grinding method, and synthetic resin molded product manufacturing method using plastic waste

A technology of synthetic resin and waste, which is applied in the field of crushing plastic waste and manufacturing synthetic resin molded products using plastic waste, and can solve the problems of emitting greenhouse gases and toxic gases

Pending Publication Date: 2022-02-18
TS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] As mentioned above, among the recycled plastic waste, the plastic residues that cannot be commercialized (material recovery) are mainly used for heat recovery, but heat recovery can only partially reuse resources, and there are also emissions caused by incineration. The Problem of Greenhouse and Toxic Gases

Method used

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  • Plastic waste grinding method, and synthetic resin molded product manufacturing method using plastic waste
  • Plastic waste grinding method, and synthetic resin molded product manufacturing method using plastic waste
  • Plastic waste grinding method, and synthetic resin molded product manufacturing method using plastic waste

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no. 1 approach

[0026] ・First Embodiment (Plastic waste crushing method)

[0027] figure 1 It is explanatory drawing of the crushing method of the plastic waste of 1st Embodiment of this invention. figure 1 Among them, symbol 1 is the first tank, symbol 2 is the second tank, symbol 3 is the agitator, and symbol 4 is the crushing device.

[0028] Plastic waste P is accommodated in the first tank 1 . The "plastic waste" mentioned here refers to discarded and recycled plastic products, plastic packaging containers, plastic packaging films, or their fragments, including industrial waste discharged from factories of enterprises, general waste discharged from consumers, etc. waste, and plastic waste derived from marine plastic litter, etc.

[0029] In this embodiment, the kind of plastic constituting the plastic waste P is not limited. For example, plastics, such as polyethylene (PE), polypropylene (PP), polystyrene (PS), polyvinyl chloride (PVC), and polyethylene terephthalate (PET), are menti...

no. 2 approach

[0054] ・Second Embodiment (Manufacturing Method of Synthetic Resin Molded Article Using Plastic Waste)

[0055] The pulverized product of the mixture of plastic waste P and wood chips W obtained by the method for pulverizing plastic waste according to the first embodiment above is screened to remove powders with a particle size exceeding 1 mm, and the screened particles with a particle size of 1 mm or less The fine powder is supplied to an extrusion molding machine as a raw material of a synthetic resin molded product, and a molding process is performed. At this time, pigments and other additives may be added to the raw materials as needed.

[0056] If the heating temperature of the extrusion molding machine is set to an appropriate value (for example, 150 to 210°C) and the molding process is performed, the raw materials (and additives) are heated in the molding machine, and the raw materials are melted from the mold in the state where the plastic powder is melted. Head extru...

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Abstract

The invention provides a method where plastic residues, RPF, and marine plastic refuse, which, among recovered plastic waste, are produced without being able to be material-recycled, are used as materials for new synthetic resin molded products; and a plastic waste grinding method that makes the method possible. The plastic waste grinding method is characterized in that 30-80wt% of plastic waste (P) and 20-70wt% of wood chips (W) are prepared so as to be of a size wherein the diameter or one side thereof is 5mm or less, then are mixed together using a mixer (3), and the resulting mixture is ground to a fine powder with a grain size of 1mm or less using a grinding device (4) in which a rotor rotates at high speed.

Description

technical field [0001] The present invention relates to a method of pulverizing plastic wastes such as industrial wastes discharged from corporate factories, general wastes discharged by consumers, and plastic wastes originating from marine plastic waste, etc., into a particle size of 1 mm or less, and the use of powder of plastic wastes A method of manufacturing synthetic resin moldings. Background technique [0002] At present, efforts are being made to increase the recovery and recycling rate of plastic waste in order to respond to issues such as protection of the global environment, effective use of exhausted resources, and waste disposal. For example, wastes such as plastic containers and plastic film packaging materials contained in general waste discharged by consumers, and plastic waste contained in industrial waste discharged from corporate factories, etc., are separated and collected as much as possible as possible. Raw materials for new plastic products are reuse...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B17/04B02C7/02B02C18/00B29C31/04B29C48/00
CPCB29C48/277B29C48/04B29C48/022B29B13/10B29C48/288B29K2105/26B29K2105/06B29K2105/0088B29B2017/0484B29B17/0404B29B17/0042B29C49/071B29C2949/0715Y02W30/62B29B17/04B02C18/00B02C7/02B29B11/14B29B17/02B29C31/04B29B2017/0468B29B2017/0224Y02W30/20Y02W30/52B02C23/06B29B17/0412B29B2017/042B29B2017/0448B29K2511/00B29K2511/14C08J11/06C08J2300/30
Inventor 上手正行
Owner TS TECH CO LTD
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