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Bauxite grinding technology and apparatus thereof

A bauxite and equipment technology, applied in the field of bauxite grinding process and equipment, can solve the problems of complex process, long process and high consumption, and achieve the effect of short process, reduced maintenance and reduced operating cost

Active Publication Date: 2006-03-08
GUIZHOU BRANCH CHINA ALUMINUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this system are long process, low production capacity and high consumption
Combining the above two processes, there is a common disadvantage: complex process and high consumption

Method used

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  • Bauxite grinding technology and apparatus thereof
  • Bauxite grinding technology and apparatus thereof
  • Bauxite grinding technology and apparatus thereof

Examples

Experimental program
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Effect test

Embodiment Construction

[0030]Embodiments of the present invention: as shown in the accompanying drawings, the grinding mill of the present invention comprises a circular cylinder (1), and a liner (2) is installed on the inner wall of the cylinder (1), and the liner (2) In order to connect the liner without bolts, the liner (2) is inlaid by several arc-shaped plates (23), and wedge joints (21) and wedge joints (22) are arranged at both ends of each plate body (23). ), the plates (23) are inlaid with each other by wedge joints (21) and wedge joints (22). A partition board (3) is fixed inside the cylinder body (1) with bolts (13), and the partition board (3) separates the cylinder body (1) into two independent coarse material bins (4) and fine material bins ( 5); where the compartment plate (3) is made of cast steel material, for the convenience of installation, the compartment plate (3) is assembled by several fan-shaped plates (14); meanwhile, for the convenience of the coarse feed bin (4 ) can ente...

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PUM

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Abstract

The bauxite grinding process includes the following steps: feeding bauxite ore, lime and evaporation mother liquor into two-bin overflow grinding mill, breaking, coarse grinding, fine grinding, overflow discharging the ground ore slurry and feeding the ore slurry into intermediate slurry groove, then pumping the ore slurry into cyclone separator, sorting, discharging coarse granules slurry out from bottom outlet of cyclone separator and back returning the coarse granules slurry into two-bin overflow grinding mill and further grinding, screening fine granules slurry and feeding the fine granules slurry into finished product groove to make storage.

Description

Technical field: [0001] The invention relates to a process and equipment for grinding bauxite in alumina production. Background technique: [0002] In the process of alumina production, whether Bayer method or sintering method is adopted, the preparation of bauxite slurry is an indispensable process. Among them, the task of the raw material mill in the production of alumina batching process by the Bayer method is to enter the high A / S ore, lime and evaporated mother liquor into the raw material mill according to the specified ratio, and grind it into raw ore pulp with a certain solid content and fineness, which is supplied to Dissolution system. For a long time, for the preparation of Bayer raw ore pulp, the closed-circuit production process of grid mill and spiral classifier is mostly used. With the continuous improvement of alumina production technology, especially the pipeline dissolution technology is more and more used in alumina production, the index requirements for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C17/06B02C23/08B02C17/22
Inventor 柳健康李恩怀张必忠王奎刘毅李长江王强梁强立孙杰杜江洁肖庆刚石进军刘兆军侯云刘云泽刘昌冽胡志武
Owner GUIZHOU BRANCH CHINA ALUMINUM IND
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