Air blowing and cooling system for hot cutting pelleting

Abstract

The invention provides an air blowing and cooling system for hot cutting pelleting, comprising a blower, a vortex separator, an air blowing pipe, a first crushing device and a first vibration sieve, wherein the air blowing pipe is used for connecting the blower and the vortex separator; and the first crushing device is connected with the vortex separator, and the first vibration sieve is connected with the first crushing device. The first vibration sieve comprises a vibrating device, a sieving net and a fan, wherein the vibrating device is arranged on a fixed frame; the sieving net is arranged on the vibrating device; and the fan is fixed on a fan frame, and the fan is aligned to the sieving net. The first crushing device comprises a driving device, a machine shell and a crushing rotating shaft, wherein the driving device is fixed on the frame; the machine shell is provided with a material inlet and a material outlet; and the crushing rotating shaft is arranged in the machine shell; the crushing rotating shaft is connected with the driving device through a transmission mechanism; and the crushing rotating shaft is provided with a plurality of crushing bars or crushing plates. The air blowing and cooling system for hot cutting pelleting in the invention is low in fault rate, excellent in material dispersing and cooling effects, low in working noise and little in pollution to the material.

Description

technical field [0001] The invention relates to the field of plastic raw material manufacturing, in particular to an equipment system for the whole process from plastic hot cutting and granulation to cooling and storage of the granules. Background technique [0002] In the production of some plastics such as PVC, it is necessary to use a hot cutting pelletizer. The extruded material extruded from the extruder after high-temperature melting is directly pelletized at a high temperature without cooling. The temperature can reach 110-130 ° C, and the temperature of the hot-cut particles is relatively high. They are in contact with each other, bonded into groups or connected into strips, which is not conducive to the packaging and transportation of products. Qualified products are single cylindrical particles with regular shape and meet certain diameter and length requirements, making them suitable for packaging without sticking or sticking. The junction temperature is 30-40°C. ...

AI Technical Summary

Problems solved by technology

[0004] 2. The dispersion effect of the material is not good. There are still many contiguous particles after being fed by the two-stage centrifugal fan, and the proportion of unqualified products is relatively large. The degree varies according to the type of material produced.

[0005] 3. The working noise is very loud, which is over 110dB after testing (passing 600KG materials per hour);

[0006] 4. The cooling effect is not good, and the temperature is still 60-80°C after passing through the vibrating screen

Images