Preparation method and device of special membrane material for mining air drum

Abstract

The invention discloses a preparation method of a special membrane material for a mining air drum. The preparation method comprises the following steps of: unreeling base cloth; selecting raw material components for preparing the covering membrane material, and then burdening and mixing; respectively plasticizing the covering membrane material through two extruders, then outflowing from two tape casting molds to form hot melt membrane, simultaneously casting the hot melt membrane on the two sides of the base cloth by the two tap casting molds, and carrying out hot melt composition by a hot melt composition device; and drawing and cooling the membrane material subjected to hot melt composition to obtain the finished product. Simultaneously, the invention discloses a device for preparing the special membrane material for the mining air drum. Compared with the prior art, the method and the device have the characteristics of little investment and energy saving. The covering membrane material is simultaneously cast on the two sides of the preheated base cloth, so that one-time molding is realized, heating composition only needs to be carried out once, and the operation of repeated heating and cooling is omitted, thus lots of heat and manual labor are saved, the cost is also saved, and moreover, the purpose of energy saving is realized.

Description

technical field [0001] The invention relates to a preparation method and a device for a special membrane material for a mine air duct, in particular to a preparation method and a device for a special membrane material for a mine air duct that can be molded at one time. Background technique [0002] At present, the special membrane materials for mining air ducts are generally produced first, and then the film is pasted. In such a process, two hot-melt moldings are required for the production of the film and the film, which not only wastes time, but also It needs to consume a lot of heat energy, which will cause an increase in cost, and does not meet the national requirements for energy conservation and emission reduction in industrial production. Contents of the invention [0003] The object of the present invention is to provide a preparation method and device for a one-time molding special membrane material for mine air ducts. [0004] According to one aspect of the pres...

AI Technical Summary

Problems solved by technology

[0002] At present, the special membrane materials for mining air ducts are generally produced first, and then the film is pasted. In such a process, two hot-melt moldings are required for the production of the film and the film, which not only wastes time, but also It needs to consume a lot of heat energy, which will cause an increase in cost, and does not meet the national requirements for energy conservation and emission reduction in industrial production.

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