Solid-liquid mixing equipment for preparing ultra-fine slurry and mixing method of solid-liquid mixing equipment

Abstract

The invention relates to solid-liquid mixing equipment for preparing ultra-fine slurry and a mixing method of the solid-liquid mixing equipment. The mixing device comprises a dispersing cylinder, a rotating shaft, a grinding mechanism and a fixed sleeve, the dispersing cylinder comprises an upper cover, a lower cover and a side wall located between the upper cover and the lower cover, the dispersing cylinder is provided with a liquid feeding mouth, a solid feeding mouth and a discharging mouth; the rotating shaft is fixedly provided with a spiral packing auger and a dispersing disc, wherein the spiral packing auger is located in the fixed sleeve, and the dispersing disc is located above the fixed sleeve; the grinding mechanism includes a dynamic grinding disc and a static grinding disc located under the dynamic grinding disc, and the dynamic grinding disc and the static grinding disc rub against each other to grind materials. According to the solid-liquid mixing equipment, the structure is simple, the design is reasonable, use and operation are easy, maintenance is convenient, fully grinding and refining for the materials can be realized, and the ultra-fine slurry can be quickly prepared.

Description

Technical field [0001] The invention relates to mixing equipment, in particular to a solid-liquid mixing equipment for preparing ultrafine slurry and a mixing method thereof. Background technique [0002] In chemical production, it is often necessary to fully mix solid particles with liquid before use. In the production process of slurry formed by mixing solid particles such as water-based color paste and coal water slurry with liquid, it is generally a pre-mixed slurry formed by mixing powder and liquid, and then ultra-fine slurry is obtained by grinding and other ultra-fine processing In the pre-mixed slurry, too large solid particles will have a greater impact on the stability, density, and post-processing performance of the pre-mixed slurry. How to form a pre-mixed slurry with a smaller particle size distribution through mixing is a solid An issue worthy of attention in liquid mixing equipment. However, most of the existing mixing equipment only has one mixing function and ...

AI Technical Summary

Problems solved by technology

However, most of the existing mixing equipment has only one mixing function and cannot grind and refine the materials. The materials need to be fully mixed in the mixing equipment and then refined with the grinding equipment. In this way, two kinds of equipment need to be purchased. And the process is longer

[0003] For example, the patent with the publication number CN108940032 discloses that a dispersing device is provided with a dispersing device, and at the same time, a dispersing protrusion is provided on the screw lifting auger, but this kind of dispersing device plays a role in dispersing the material, and cannot finely grind and refine the solid particles. ; Publication No. CN107313276 patent discloses a kind of dispersing equipment, although there is a grinding device, the diameter of the sleeve and the screw auger is consistent from the bottom to the top, and the disk is in a horizontal state. These structures are not conducive to the rapid flow of materials and weaken the Dispersion effect, the grinding disc is also in a horizontal state, and the material is easy to leak and cannot be ground for a long time; the US patent with the publication number US7618181 discloses a device for dispersing pigments in water-based or oil-based systems. , Put the initially mixed and dispersed slurry containing pigment and resin into another mixing and dispersing device for re-dispersion. Although the slurry with better dispersion effect and smaller particle size distribution can be obtained, the production process and equipment are too complicated

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