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Red mud superconducting high-gradient magnetic separator

A high-gradient magnetic separation and separator technology, applied in high-gradient magnetic separators and other directions, can solve the problems of low magnetic separation efficiency and achieve the effect of improving work efficiency and high recovery value

Inactive Publication Date: 2010-09-22
王小军
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] The invention provides a red mud superconducting high-gradient magnetic separator to solve the problem of low magnetic separation efficiency existing in existing magnetic separators

Method used

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  • Red mud superconducting high-gradient magnetic separator
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Examples

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example 1

[0032] Using the red mud superconducting high-gradient magnetic separator of the present invention, stainless steel wool is used as a polymagnet, and under the operating condition of a background magnetic field strength of 4 Tesla, the ferromagnetic particles in the red mud of Shandong Aluminum Industry are separated, and the red mud after separation The iron content in the medium is less than 5%, and the iron content of the separated ferromagnetic particles can reach more than 40%. And the operating cost is only equivalent to 20% of electromagnetic separation. The recovery rate is high, the energy consumption is low, and it has great economic benefits.

example 2

[0034] Kaolin has been widely used as an additive in the paper industry. Since kaolin contains about 0.8% iron, the paper will turn yellow when stored for a long time. How to remove iron from kaolin? It has been the subject of research by kaolin manufacturers.

[0035] Get the high-quality kaolin produced in Beihai, Guangxi, the iron content is 0.8%, adopt the red mud superconducting high gradient magnetic separator of the present invention, and wherein the steel wool density is doubled, under the background magnetic field strength of 5 Tesla, the Iron is adsorbed and its iron content is reduced to 0.5%. The whiteness of kaolin is increased by more than 2 degrees, and the product grade is greatly improved.

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Abstract

The invention discloses a red mud superconducting high-gradient magnetic separator which aims to solve the problem of low magnetic separation efficiency of the traditional magnetic separator. The red mud superconducting high-gradient magnetic separator comprises a superconducting magnet, a separator and a drive device, wherein the superconducting magnet is used for generating a background magnetic field; the separator is provided with two separating chambers connected into a whole, and each separating chamber is a closed container provided with a slurry inlet, a slurry outlet, a rinse water inlet and a rinse water outlet; both ends of the separator are respectively provided with a supporting guide rail; and the drive device is used for driving the two separating chambers to alternately enter and exit the background magnetic field along the guide rails. The red mud superconducting high-gradient magnetic separator can be used for various occasions such as the iron removal of kaolin, the iron removal before smelting metallic ores, the iron removal of chemical industry raw materials, and the like and is broad-spectrum equipment for removing iron by utilizing a strong magnetic field.

Description

technical field [0001] The invention relates to the technical field of environmental protection solid waste resource treatment, in particular to a red mud superconducting high-gradient magnetic separator. Background technique [0002] Red mud is the residue formed by insoluble impurities such as iron and titanium and most of the silicon in the ore when bauxite is leached out of aluminum by strong alkali in the alumina production process. Generally, the content of iron oxide is relatively large, and the appearance is similar to red soil. , hence the name. For every ton of alumina produced, 0.8-1.5 tons of red mud is produced, and the world discharges about 60 million tons of red mud every year. By the end of 2008, my country's alumina output was about 26 million tons, and the annual discharge of red mud was close to 30 million tons. . According to statistics, the six major alumina plants of Chinalco alone discharge 12 million tons of red mud every year, and the accumulated r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03C1/027
Inventor 王小军刘昌俊王军王樟新
Owner 王小军
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