A extrusion granulator

Abstract

The invention discloses a wiping and pre-pelleting machine. In the wiping and pre-pelleting machine, one end of a wiping barrel of a pelleting machine is provided with a material feeding opening; the other end of the wiping barrel is provided with a squeezing opening; a wiping screw rod which is connected with a screw rod power device is arranged in the wiping barrel in a rotating manner; the upstream section of a barrel body of the wiping barrel is provided with a water filtering hole; a heating device is arranged at the downstream section of the wiping barrel and is used for heating materials in the wiping barrel; a shunting cone and a mouth die are arranged at the squeezing opening of the wiping barrel; a pre-grain-sized-dicing device comprises a grain-sized-dicing box, a grain-sized-dicing cutter and a grain-sized-dicing cutter power device; the grain-sized-dicing cutter is arranged in the grain-sized-dicing box and is matched with the mouth die; the grain-sized-dicing cutter power device is in transmission connection with the grain-sized-dicing cutter; and a material discharging opening connected with a material discharging device is formed in the grain-sized-dicing box. The wiping and pre-pelleting machine can be used for performing wiping, dehydration and pre-pelleting on waste plastic so as to obtain plastic particles with the relatively low water content, then the plastic particles can be pelletized directly on a pelleting machine, the storage and the transport are convenient; the pelleting procedure and the dehydration process can be truly separated; and only the plastic particles subjected to pre-pelleting need to be purchased by manufacturers.

Description

technical field [0001] The invention relates to an extrusion pre-granulator, in particular to an extrusion pre-granulator for processing waste plastics in the field of plastic recycling. Background technique [0002] Waste plastic recycling and granulating machines are generally only suitable for plasticizing and granulating dry waste plastics with low water content. The water content of waste plastics is relatively strict, so dehydration treatment is required before this. However, after being dehydrated by a dehydrator or a squeeze dryer, it needs to go through a set of relatively complicated conveying equipment before it can be docked with the waste plastic recycling granulator. Therefore, the waste plastic recycling granulator generally needs a supporting dehydrator before it can be used on site. However, dehydration and granulation cannot be separated. If the dehydration and granulation processes are separated, a large number of containers are needed to contain the dehy...

AI Technical Summary

Problems solved by technology

However, dehydration and granulation cannot be separated. If the dehydration and granulation processes are separated, a large number of containers are needed to contain the dehydrated waste plastics. At the same time, the waste plastics are messy after being broken, and it is difficult to contain them.

Therefore, at present, for some small-scale manufacturers, it is impossible to purchase a dehydrator after investing in a waste plastic recycling granulator.

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