Belt-type dry magnetic separator

A magnetic separator and dry-type technology, applied in the direction of magnetic separation, solid separation, chemical instruments and methods, etc., can solve the problems of waste of resources, low-grade products, etc., and achieve low-grade magnetic materials, high belt speed, and large processing capacity Effect

Active Publication Date: 2016-10-12
CHENGDU LEEJUN TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the magnetic agglomeration phenomenon of magnetic mineral particles in the magnetic field of the dry magnetic separator currently used for dry tailing, the magnetic and non-magnetic materials are mixed with each other, and there are still a large number of non-magnetic materials mixed with the magnetic materials after separation. In the middle, the product grade is not high. If the product grade is to be improved, the mixed non-magnetic substances will be separated, and some magnetic substances will enter the tailings, and the tailings magnetic substances are of high grade, resulting in a waste of resources.
This is the outstanding problem of the current dry magnetic separator in terms of concentrate grade, tailings grade, and discarding rate. Only two of the three indicators can be guaranteed, and all three cannot be considered.

Method used

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Experimental program
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Effect test

Embodiment 1

[0031] Such as figure 1 with figure 2 As shown, a belt dry magnetic separator includes:

[0032] The casing 1 is located outside the entire magnetic separator, and is used to cover all the parts in the magnetic separator to protect the magnetic separator and realize closed operation.

[0033] Feeding device 3, the upper side of the shell 1 is provided with a feeding port 2, and a feeding device 3 is provided below the feeding port 2, that is, the material directly falls on the feeding device 3 through the feeding port 2, and the feeding The device 3 includes a belt conveyor. The belt conveyor includes two rollers 12 and a conveyor belt 13 wound on two rollers. One of the two rollers 12 is an active roller and the other It is the driven roller. The driving roller can be an electric roller, such as an oil-cooled roller, or it can be replaced by an ordinary roller and a motor acceleration / decelerator, and the conveying belt 13 can be a high-strength non-magnetic belt. Along the mat...

Embodiment 2

[0046] The second embodiment is the same as the first embodiment. The difference is that in the feeding device 3, the roller 12 on the side of the belt conveyor away from the feed port 2 is a magnetic roller, that is, the roller 12 of the belt conveyor The conveying end 16 is provided with a tail-throwing mechanism 14, a tailing port 9 is provided below the tail-throwing end of the tail-throwing mechanism 14, and a recovery port 15 is provided at the magnetic discharge end of the tail-throwing mechanism 14. Such as Figure 5 As shown, when the non-magnetic material on the belt conveyor is thrown at the conveying end 16, a very small amount of magnetic material is captured by the magnetic roller and adsorbed on the conveyor belt 13, and the non-magnetic material is collected by the tailing port 9. , The captured magnetic material moves with the conveyor belt 13. When the magnetic material moves away from the magnetic roller, the magnetic force on the magnetic material changes fro...

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Abstract

The invention discloses a belt-type dry magnetic separator. The belt-type dry magnetic separator comprises a housing, the upper part of the housing is provided with a feeding inlet, a feeding device is arranged below the feeding inlet, a magnetic separation device is arranged above the feeding device, the magnetic separation device comprises a magnetic separation belt, along a material conveying direction of the feeding device, a primary separation magnetic system and a refined separation magnetic system are orderly arranged in the magnetic separation belt in parallel, a conveying tail end of the feeding device is not in a magnetic material discharge range of the refined separation magnetic system, a magnetic field range of the primary separation magnetic system covers materials on the feeding device, a magnetic field of the refined separation magnetic system is an alternating magnetic field, and magnetic field ranges of the primary separation magnetic system and the refined separation magnetic system are superimposed. The belt-type dry magnetic separator continuously treats a crushed magnetic material so that a product with quality close to that of water separated products is obtained, strictly controls mine tailing magnetic object quality, has a high treatment capability and a large tailings discarding rate, has a very wide mineral particle fraction application range and reduces a later technical equipment investment and a system operation cost.

Description

technical field [0001] The invention relates to the technical field of mineral magnetic separation, in particular to a belt-type dry magnetic separator. Background technique [0002] The so-called magnetic separation is a sorting method that uses the magnetic difference of the sorted materials to separate mineral particles in the sorting magnetic field. Magnetic separation is divided into wet magnetic separation and dry magnetic separation. Wet magnetic separation uses water as the working medium, while dry magnetic separation does not use water as the working medium at all. In order to obtain the grade required for smelting, the current mineral magnetic separation uses a wet ball mill to grind the material finely and then uses a wet magnetic separator for separation. This process is also economical and reasonable for higher-grade raw ore, but it will bring a series of problems for lower-grade raw ore. If the stone is sorted out first, it will cause complex production syst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03C1/18
CPCB03C1/18
Inventor 何亚民魏勇徐智平
Owner CHENGDU LEEJUN TECH CO LTD
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