sanding machine

Abstract

The invention provides a sand mill for grinding fine particle materials according to a wet method. The sand mill is composed of a base, a pipe joint, a belt wheel, a hollow spindle, a bearing block, a cylinder barrel, a cylinder sleeve, rotors and a shell sleeve. The rotors and rod pins of the rotors are of an inblock cast structure, and the rod pins are conical, so that the bending strength is improved. An inner water pipe is located at the center of the hollow spindle, the inner diameter cylindrical face of the hollow spindle is communicated with a water return port, annular cavities of the rotors are communicated with inner holes of the inner water pipe, a rotor cooling water inlet passageway is formed, the annular cavities of the rotors are communicated with the water return port through a communicating pipe and an inner cavity of the hollow spindle, and then a rotor cooling water return passageway is formed; annular space between the cylinder barrel and the cylinder sleeve is communicated with a water inlet pipe and a water return pipe, and a cylinder barrel cooling water passageway is formed; the shell sleeve is fixed to the cylinder barrel, a handle nut is rotated, threads of the handle nut interact with external threads on a piston, and the piston is pushed to axially move to adjust the working volume and the working pressure of the sand mill.

Description

technical field [0001] The invention relates to a grinding device for processing fine particle materials, in particular to a sand mill for wet grinding fine particle materials. Background technique [0002] As an important processing equipment in coatings, chemicals, abrasives, pharmaceuticals, food and other industries, fine powder grinding equipment is developed based on the working principle of ball mills. Compared with ball mills, sand mills have finer grinding particle size and better grinding quality. The types of mills mainly include vertical agitating sand mills, horizontal disc sand mills, and horizontal pin pin sand mills. my country has introduced Swiss wet grinding technology into China since the 1990s, and its application fields include Coatings, inks, pesticides, mining, ceramics and other industries, the main problems at present are the high energy consumption of equipment, the temperature rise, and the grinding fineness needs to be further improved. With the w...

AI Technical Summary

Problems solved by technology

[0002] As an important processing equipment in coatings, chemicals, abrasives, pharmaceuticals, food and other industries, fine powder grinding equipment is developed based on the working principle of ball mills. Compared with ball mills, sand mills have finer grinding particle size and better grinding quality. The types of mills mainly include vertical agitating sand mills, horizontal disc sand mills, and horizontal pin pin sand mills. my country has introduced Swiss wet grinding technology into China since the 1990s, and its application fields include Coatings, inks, pesticides, mining, ceramics and other industries, the main problems at present are the high energy consumption of the equipment, the temperature rise, and the grinding fineness needs to be further improved

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