A kind of circulating wet magnetic separation method

A magnetic separation and wet technology, applied in wet separation, chemical instruments and methods, flotation, etc., can solve the problems of inconvenient management, large floor area, long process, etc., and achieve easy management, small floor space, The effect of short process

Active Publication Date: 2015-12-30
黄山市开发投资集团有限公司
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  • Abstract
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Problems solved by technology

The invention can circulate magnetic separation, improve the utilization rate of the mixed liquid containing ore pulp, non-metallic fine particles and iron impurities, the circulation channels of minerals are simple and not easy to be blocked, and can be closed to process a large amount of feed materials; at the same time, it solves the problem of traditional magnetic separation methods Disadvantages such as large area, long process, inconvenient management, etc.

Method used

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  • A kind of circulating wet magnetic separation method
  • A kind of circulating wet magnetic separation method
  • A kind of circulating wet magnetic separation method

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Embodiment Construction

[0036] A circulating wet magnetic separation method, it comprises the following steps:

[0037] 1) Cleaning and removing impurities, wet pulp, cleaning and removing impurities first, and controlling the content of visible impurities in the pulp below 10%;

[0038] 2) Filtration and pre-screening, the pulp passes through 60-400 mesh sieve holes in advance to select finer particles of pulp;

[0039] 3) Feeding, injecting the mixed pulp into the magnetic separator;

[0040] 4) For the first magnetic separation, the raw material enters the upper cone of the magnetic separator, the magnetic induction coil is energized and starts to rotate with the rotating spindle, and after 10-40 minutes of magnetic separation, the first magnetic separation ends;

[0041]5) Open and close the crescent-shaped slurry leakage hole for the first time, open the crescent-shaped slurry leakage hole between the edge of the water baffle and the inner wall of the magnetic separation cylinder, and discharge...

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Abstract

The invention discloses a wet-type circulation magnetic separation method which includes the following steps of a. washing and impurity removing; b. filtering and pre-screening; c. feeding; d. first-time magnetic separation; e. first-time opening and closing of (crescent) slurry leaking holes; f. first-time rotating spraying water recycling; g. second-time magnetic separation; h. second-time opening and closing of (crescent) slurry leaking holes; i. second-time rotating spraying water recycling; j. circulation reciprocating magnetic separation; k. rotating slagging; l. reverse floatation. The device adopts a unique double-cone circulation structure. When the circulation structure rotates to different positions under the drive of the driving device, and river sand or metal slurry can be separated in the two hollow cones in a circulation mode. The whole process is automatically controlled by a circuit, human resource waste is reduced, the problems of complex separation method and long separation process are solved, and the effectiveness of the magnetic separation is improved.

Description

technical field [0001] The invention relates to the field of wet magnetic separation, in particular to a wet circulating electromagnetic separator and a magnetic separation method for selecting iron sand from a mixed solution of river sand, ore pulp, non-metallic fine particles and iron impurities and removing iron impurities. Background technique [0002] Magnetic separation is the main beneficiation method for iron ore. After metal ore, especially iron ore, has been beneficiated, the grade has been improved and the impurity content has been reduced, which is beneficial to the smelting process. According to our country's practice, every 1% increase in iron concentrate grade can increase the blast furnace utilization factor by 2% to 3%, reduce coke consumption by 1.5%, and reduce limestone consumption by 2%. Many non-ferrous and rare metal minerals have different magnetic properties. When the final concentrate cannot be obtained by gravity separation and flotation, magneti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B7/00B02C1/02B03D1/018
Inventor 刘凯黄思路甘敏王芳金灿冯忠祥任晶鸽王志
Owner 黄山市开发投资集团有限公司
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