Sand mill with double cooling systems

Abstract

The invention discloses a sand mill with double cooling systems. The sand mill comprises a bearing pedestal, a grinding cylinder and a grinding drum which is arranged in a cavity of the grinding cylinder, wherein a main shaft which is arranged in the bearing pedestal is fixedly connected with the grinding drum; the grinding cylinder consists of an outer sleeve and an inner sleeve; and a cooling water pipe is arranged in a sandwich layer between the outer sleeve and the inner sleeve. Through the spiral tubular cooling water pipe on the grinding cylinder, the main shaft, an internal cooling passage of the grinding drum and a cooling oil chamber at the periphery of the main shaft, multi-cycle cooling is performed on the sand mill by utilizing cooling water and cooling oil; comprehensive enhanced cooling is performed on the main shaft, the grinding drum and a material; and thus, the operation of the sand mill is protected, the material is protected from being decomposed and deteriorated, and the quality of the material is improved.

Description

technical field [0001] The invention relates to grinding equipment, in particular to a horizontal sand mill with double cooling systems. [0002] Background technique [0003] Sand mill is a high-efficiency wet ultra-fine grinding and dispersing machine widely used in non-metallic mineral industries such as paint, dye, paint, ink, medicine, magnetic powder, ferrite, photosensitive film, pesticide, paper and cosmetics. The solid-liquid mixed material that has been pre-dispersed and wetted by the mixer is fed into the cylinder by the material pump, and the material and the grinding medium in the cylinder are agitated by the high-speed rotating disperser, so that the solid particles in the material and the grinding medium interact with each other There will be more intense collision, friction, and shearing effects between them, so as to accelerate the grinding of fine particles and disperse aggregates. [0004] The sand mill is mainly composed of a frame, a motor, a grinding ...

AI Technical Summary

Problems solved by technology

At present, there are few reports about the cooling treatment of the sand mill, and some of them only generally say that the cooling treatment is carried out with cooling water, which cannot cool the main shaft, the grinding cylinder and the materials in the grinding cylinder, resulting in the main shaft, etc. The deformation and damage of the equipment will affect the grinding quality of the materials. In addition, materials such as some easily decomposed substances such as medicines and pesticides will be decomposed at high temperatures, resulting in unqualified active ingredients.

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