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Method for granulation of bakelite powder under hot melt state and equipment thereof

A technology of bakelite powder and granulation equipment, which is applied in the field of bakelite powder hot granulation and its equipment, can solve the problems of high cost, high energy consumption, low production efficiency of cold granulation method, etc., and achieves good quality of finished products and environmental pollution. The effect of less production equipment and simple structure

Active Publication Date: 2013-01-02
ZHEJIANG HANGMO SYNTHETIC MATERIAL
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  • Abstract
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  • Claims
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Problems solved by technology

In the above production process, about 30% of the pellets do not meet the specifications of the injection pellets and are discarded as recycled materials. Therefore, the cold granulation method has low production efficiency, high energy consumption, and high cost

Method used

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  • Method for granulation of bakelite powder under hot melt state and equipment thereof
  • Method for granulation of bakelite powder under hot melt state and equipment thereof

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Embodiment Construction

[0016] The present invention will be further explained below in conjunction with the accompanying drawings.

[0017] This specific embodiment is an explanation of the present invention, not a limitation of the present invention. Any improvements and modifications made by those skilled in the art after reading the description of the present invention will be protected by law as long as they are within the scope of the claims of this application document.

[0018] A thermal granulation method of bakelite powder, comprising heating the bakelite powder to form a molten clot, characterized in that the bakelite powder in the form of a molten clot is added to a screw extruder to extrude into thin strips and cut into granules, and cooled After the granular product is obtained; at the extrusion port of the screw extruder, the thin strips of the bakelite powder clot are cut into granules by the rotary cutting blade; The compressed air is blown to the particles to suspend, disperse and ...

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Abstract

The invention relates to a method for granulation of bakelite powder under a hot melt state and equipment thereof. The method for granulation of bakelite powder under a hot melt state includes: heating the bakelite powder into a molten coagulum form, adding the bakelite powder in a molten coagulum form into a screw extruder to extrude it into strips and cutting the strips into granules, and then carrying out cooling so as to obtain granular products. The extrusion granulation method of bakelite powder under a hot melt state realizes one-step molding, and the granules are very uniform and have no need for screening. Aircurrent rapid cooling is achieved, the finished products have good quality, and the production efficiency is high. Thus, the outdated traditional cold state granulation methods, which are characterized by first melting, solidification and then crushing of bakelite powder, low screening efficiency, and high dust environment pollution, are completely changed.

Description

technical field [0001] The invention relates to a method and equipment for making bakelite powder into granules in a hot-melt state. Background technique [0002] Bakelite, also known as Bakelite, is a phenolic plastic filled with wood powder, and is widely used in the production of insulating mechanism components for electrical appliances and instruments. The traditional production method of bakelite products is molding with bakelite powder, but the more advanced production method is to granulate the bakelite powder and then inject it through an injection molding machine. But at present, the granulation of bakelite powder is cold granulation method, that is, the bakelite powder is melted into pieces first, and after cooling, it is crushed or cut into small particles with a knife, and then sieved to obtain 8-60 mesh injection particles. . In the above production process, about 30% of the pellets do not meet the specifications of the injection pellets and are discarded a...

Claims

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Application Information

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IPC IPC(8): B29B9/06
Inventor 王雪鸿王俊
Owner ZHEJIANG HANGMO SYNTHETIC MATERIAL
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