A kind of production technology and equipment of eva fine grinding powder

Abstract

The invention discloses an EVA fine milled powder production technology which comprises the following steps: A, emptying; B, cutting; C, addition of an anti-sticking material; D, powder milling and cooling; E, secondary powder milling; and F, collection. EVA fine milled powder production equipment comprises a rack, a cutting device, a powder milling device, a screening device and a collection cylinder; the powder milling device is fixed on the rack; the screening device is arranged at the bottom of the powder milling device; auxiliary brackets for supporting the screening device are fixed on the two sides of the screening device respectively; the cutting device is arranged on one side of the powder milling device; and the collection cylinder is arranged at the bottom of the screening device. The EVA fine milled powder production technology and equipment can prevent EVA powder from being stuck with a powder milling structure without influencing the inherent attribute of the EVA powder, greatly reduces occurrence of dead mass and can ensure the fineness of the EVA powder and reduce occurrence of incompleteness condition during EVA powder milling by performing a secondary finishing and cutting structure.

Description

technical field [0001] The invention relates to an EVA product, in particular to a production process and equipment for EVA fine grinding. Background technique [0002] The material has good softness and rubber-like elasticity, so it is used to make various objects, but a large amount of EVA scraps will be left in the processing process. This part of the waste cannot be degraded and is harmful to the environment. Therefore, the grinding mechanism is usually used to grind the powder, and then it is made into rubber powder and put into use again. However, during the grinding process, the grinding mechanism often sticks to the EVA scrap, which is easy to cause dead material and seriously reduces the recovery. At present, the method of passing cooling water to the grinding wheel is often used to reduce the temperature, but this kind of temperature control effect is not good, and auxiliary additives are often needed to prevent sticking, and the EVA scraps are very thick when they...

AI Technical Summary

Problems solved by technology

[0002] The material has good softness and rubber-like elasticity, so it is used to make various objects, but a large amount of EVA scraps will be left in the processing process. This part of the waste cannot be degraded and is harmful to the environment. Therefore, the grinding mechanism is usually used to grind the powder, and then it is made into rubber powder and put into use again. However, during the grinding process, the grinding mechanism often sticks to the EVA scrap, which is easy to cause dead material and seriously reduces the recovery. At present, the method of passing cooling water to the grinding wheel is often used to reduce the temperature, but this kind of temperature control effect is not good, and auxiliary additives are often needed to prevent sticking, and the EVA scraps are very thick when they enter the grinding device, so they are not easy to be absorbed by the grinding wheel. Fine grinding, and no secondary fine grinding, so the EVA scraps that have not been finely ground are often collected in the collection cylinder

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