Special adjustable metal separating device for PET (polyethylene terephthalate) bottle pieces

Abstract

The invention relates to a special adjustable metal separating device for PET (polyethylene terephthalate) bottle pieces. The special adjustable metal separating device comprises a feeding port, magnets, a transparent connecting belt, an impurity channel, PET bottle piece channels, a PET bottle piece outlet, an impurity outlet and an adjustable guiding rail. The special adjustable metal separating device is characterized in that since the moving direction of a charged object can be changed due to the action of the Lorentz force when the charged object moves in a magnetic field, charged PET bottle pieces and uncharged metal materials can be separated, so that the purpose of separating metal impurities is achieved. The special adjustable metal separating device has the advantages that due to full application of the action of the Lorentz force, the charged PET bottle pieces to be separated fall into the PET bottle piece channels in the non-vertical direction under the action of the magnetic field, so that the complete removal of the metal impurities is realized, the problem of incomplete separation of the metal materials due to magnets is avoided, and the detectable rate of the metal impurities in the materials is furthest increased; and the position of the feeding port can be adjusted by the adjustable guiding rail, so that the purpose of adjusting the separation effect is achieved.

Description

technical field [0001] The invention relates to the field of PET bottle recycling, in particular to a special adjustable metal separation device for PET bottle flakes. Background technique [0002] Polyester fiber is a synthetic fiber obtained by spinning polyester obtained by polycondensation of organic dibasic acid and dibasic alcohol. The polyester fiber produced in large quantities in industrialization is made of polyethylene terephthalate, and the trade name in China is polyester. It is the largest variety of synthetic fibers at present. Polyethylene terephthalate is the most important variety of thermoplastic polyester. The English name is Polythylene terephthalate, referred to as PET or PEIT (hereinafter referred to as PET), commonly known as polyester resin. It is a condensation polymer of terephthalic acid and ethylene glycol, and together with PBT, it is collectively referred to as thermoplastic polyester, or saturated polyester. PET is divided into fiber-grade ...

AI Technical Summary

Problems solved by technology

In the recycling of PET bottles, since most of the batch cleaning adopts slice cleaning, metal separation can be selected in the slice cleaning process. At present, there is no effective automatic method to realize the automatic separation of metal impurities in PET slice materials.

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