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Ultrafine kaolin four-stage pulverizing equipment and ultrafine kaolin and its four-stage pulverizing production process

A technology of superfine kaolin and production technology, which is applied in the direction of chemical instruments and methods, inorganic chemistry, silicon compounds, etc., can solve the problems of high energy consumption and high production cost of superfine kaolin, and achieve low energy consumption, wide application range and saving The effect of production costs

Active Publication Date: 2021-08-17
内蒙古超牌新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • Ultrafine kaolin four-stage pulverizing equipment and ultrafine kaolin and its four-stage pulverizing production process
  • Ultrafine kaolin four-stage pulverizing equipment and ultrafine kaolin and its four-stage pulverizing production process

Examples

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Effect test

Embodiment 1

[0042] (1) Put the raw ore into the feed hopper 11 and enter the single-stage hammer crusher through the apron feeder 12 for crushing to obtain at least 91% of coarse materials with a particle size of less than 30 mm;

[0043] (2) Enter the coarse material in the step (1) into the filter device for filtering, and the filtered coarse material enters the four-roll crusher through the belt conveyor 13 for crushing to obtain solid particles with a particle size of at least 90% less than 1 mm;

[0044] (3) Enter the solid particles in the step (2) into the screening device for screening, and the qualified solid particles enter the vertical ball mill through the bucket elevator 14, and the addition ratio of the solid particles and water is controlled by the feeding device and the water injection device, The solid content is 50%, adding a dispersant, the amount of which accounts for 0.1% of the total amount, and grinding to obtain at least 91% of the slurry with a particle size of les...

Embodiment 2

[0047] (1) Put the raw ore into the feed hopper 11 and enter the single-stage hammer crusher through the apron feeder 12 for crushing to obtain at least 92% of coarse materials with a particle size of less than 30mm;

[0048] (2) Enter the coarse material in the step (1) into the filter device for filtering, and the filtered coarse material enters the four-roll crusher through the belt conveyor 13 for crushing to obtain at least 91% solid particles with a particle size less than 1 mm;

[0049] (3) Enter the solid particles in the step (2) into the screening device for screening, and the qualified solid particles enter the vertical ball mill through the bucket elevator 14, and the addition ratio of the solid particles and water is controlled by the feeding device and the water injection device, The solid content is 46%, adding a dispersant, the amount of which accounts for 0.2% of the total amount, and grinding to obtain at least 93% of the slurry with a particle size of less th...

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Abstract

The invention discloses a four-stage pulverizing equipment for superfine kaolin and a production process for superfine kaolin and the four-stage pulverization thereof. The first crushing device for 90% of the coarse material with a particle size of less than 30 mm, located at the output end of the coarse material of the first crushing device, is used for performing dry fine crushing of the coarse material to form at least 90% of the solid particles with a particle size of less than 1 mm The second crushing device, at the solid particle output end of the second crushing device, is used to carry out wet rough grinding of solid particles to form at least 90% of the slurry with a particle size smaller than 325 mesh. The first wet grinding device is at the first wet grinding The slurry output end of the device is used for wet grinding the slurry to form at least 90% ultra-fine slurry with a particle size of less than 2 μm. The four-stage ultrafine kaolin milling equipment of the present invention follows the principle of "crushing is better than grinding, and wet grinding is better than dry grinding", thereby improving production efficiency and reducing energy consumption.

Description

technical field [0001] The invention relates to the field of kaolin processing, in particular to a four-stage ultrafine kaolin milling equipment. In addition, the present invention also relates to an ultrafine kaolin comprising the above-mentioned four-stage pulverizing equipment for ultrafine kaolin and a production process for four-stage pulverization 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, refractory materials, ceramics, steel, thermal power, coal and other industries, it is usually necessary to crush the raw ore into small particle materials, and then grind the small particle materials To obtain coarse powder, if ultra-fine powder is to be obtained, the coarse powder needs to be ultra-finely ground to obtain micron-sized ultra-fine powder kaolin. [0003...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C21/00B02C23/02C01B33/40
CPCB02C21/00B02C23/02C01B33/40
Inventor 冯建明周彤刘庆华刘松柏
Owner 内蒙古超牌新材料股份有限公司