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Method and device for manufacturing dispersed mineral products

A mineral and product technology, applied in the field of manufacturing dispersed mineral products, can solve the problems of inefficiency and low purification of raw materials

Inactive Publication Date: 2008-06-18
OMYA SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] However, in this respect the raw materials have hitherto not been purified or only very inefficiently purified
Therefore, for the manufacture of high-quality dispersed mineral products, especially filling materials, only very pure and high-value starting raw materials can be used, but they are only available on a limited scale

Method used

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  • Method and device for manufacturing dispersed mineral products
  • Method and device for manufacturing dispersed mineral products
  • Method and device for manufacturing dispersed mineral products

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Embodiment Construction

[0036] The plant according to FIG. 1 comprises a ball mill 1 for grinding and decomposing mineral raw materials and a centrifugal sieving machine 2, which according to the invention is used for triboelectric charging of ground mineral particles in addition to classification.

[0037] In order to achieve better tribostatic charging and a higher charge density of the particles flowing through the flow classifier 2 , an external DC voltage 10 can be connected to one or more rotating or stationary parts of the flow classifier 2 .

[0038] This is represented in more detail in Figures 2 and 3:

[0039] The screen basket 15 is connected to a drive motor 18 by means of a rotor shaft 25 and a coupling 19 . A slip ring 20 is mounted on the rotor shaft 25, which is connected to one pole of the DC power supply 10 via two carbon brushes 17, while the other pole is grounded. The voltage output by the DC power supply 10 is transmitted to the rotor shaft 25 made of conductive material throu...

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Abstract

The invention relates to a method for manufacturing dispersed mineral products by grinding the mineral raw material, sizing the same in a flow classifier, sorting the same in dispersion in air, and eliminating the dispersion air. Also disclosed are devices and installations for carrying out said method.

Description

technical field [0001] The invention relates to a method and an apparatus for producing dispersed mineral products, with a mill, an air classifier and a system for separating dispersed air. Background technique [0002] Deposits of naturally occurring mineral raw materials consist of mixtures of different materials. Mineral raw materials mined for certain applications are normally impure due to a large number of different associated minerals. [0003] In order to make mineral raw materials available, they must be mined by mining techniques and enriched and purified with useful minerals through different preparation processes. [0004] The higher the enrichment and purity of useful substances in mineral products, the more valuable they are. This is especially true for the use of mineral raw materials as high-value filler materials in the paper, pigment, paint, plastics and pharmaceutical industries. The quality of mineral fillers in these fields of application is primarily...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03C7/00B03C3/15B02C23/08
CPCB03C7/006B02C23/12B03C3/15B03C7/00B02C23/08
Inventor T·曼格尔伯格B·塔瓦库利
Owner OMYA SAS