Ultra-fine kaolin four-stage powder making equipment and ultra-fine kaolin and four-stage powder making production process of ultra-fine kaolin

Abstract

The invention discloses ultra-fine kaolin four-stage powder making equipment and ultra-fine kaolin and a four-stage powder making production process of the ultra-fine kaolin. The ultra-fine kaolin four-stage powder making equipment comprises a first crushing device, a second crushing device, a first wet grinding device and a second wet grinding device, wherein the first crushing device is used forenabling the crude ore to be subjected to coarse crushing through a dry method to form at least 90% coarse materials with the particle diameter less than 30mm;; the second crushing device is arrangedat the output end of the coarse material of the first crushing device and used for enabling the coarse materials to be subjected to fine crushing through the dry method to form at least 90% of solidparticles with particle diameter of less than 1 mm; the first wet grinding device is arranged at the output end of the solid particles of the second crushing device and used for enabling the solid particles to be subjected to coarse grinding through a wet method to form at least 90% of slurry with particle diameter less than 325 meshes; and the second wet grinding device is arranged at the outputend of the slurry of the first wet grinding device and used for enabling the slurry to be subjected to fine grinding through the wet method to form at least 90% of ultra-fine slurry with particle diameter less than 2[mu]m. The ultra-fine kaolin four-stage powder making equipment follows the principle of 'crushing is in preference to grinding, wet grinding is in preference to dry grinding', and thus production efficiency is improved and energy consumption is reduced.

Description

Technical field [0001] The invention relates to the field of kaolin processing, in particular to a four-stage ultrafine kaolin powder milling equipment. In addition, the present invention also relates to an ultra-fine kaolin including the above-mentioned four-stage pulverizing equipment for ultra-fine kaolin and a four-stage pulverizing production process thereof. Background technique [0002] Kaolin can be used as a filler to replace titanium dioxide, with low price and good quality. In the production process of mineral processing fields such as building materials, chemicals, fertilizers, metallurgy, mining, refractories, ceramics, iron and steel, thermal power, coal and other industries, it is usually necessary to crush the raw ore into small particles, and then grind the small particles To obtain coarse powder, if you want to obtain ultrafine powder, you need to superfine the coarse powder to obtain micron-level ultrafine powder of kaolin. [0003] Traditional grinding equipme...

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Problems solved by technology

[0004] The invention provides a four-stage pulverizing equipment for superfine kaolin and a production process for superfine kaolin and its four-stage pulverization, so as to solve the technical problems of high production cost and high energy consumption of superfine kaolin

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