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Dry-type superfine powder magnetic separator

A technology of ultra-fine powder and magnetic separator, which is applied in the direction of magnetic separation, solid separation, chemical instruments and methods, etc., and can solve the problems that ultra-fine powder is easy to agglomerate and magnetic impurities cannot be separated.

Active Publication Date: 2010-04-21
BENGBU ZHONGHENG NEW MATERIALS SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings of the prior art that the ultrafine powder is easy to agglomerate and the magnetic impurities inside the agglomerate cannot be separated, and provides a dry ultrafine powder magnetic separator

Method used

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  • Dry-type superfine powder magnetic separator
  • Dry-type superfine powder magnetic separator
  • Dry-type superfine powder magnetic separator

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Embodiment Construction

[0013] like figure 1 Shown is a schematic diagram of the structure of the present invention, which is composed of a cylindrical magnetic separation bin 1, a bag filter 2 and an induced draft fan 3 sequentially connected through pipelines. The side wall of the magnetic separation bin is provided with a feeding port 101, and the bottom is provided with a waste outlet. 104. A discharge port is provided on the top to connect with the bag dust collector 2, and a manual butterfly valve 4 is provided between the magnetic separation bin 1 and the dust collector.

[0014] combine figure 1 , image 3 , the bottom of the magnetic separation chamber is provided with a group of compressed air nozzles 105, specifically the bottom is provided with an air inlet pipe 106 connected to the air compressor, the air inlet pipe 106 is divided into two parts: a straight pipe part and an inner and outer ring pipe, and the inner ring pipe is provided with 4 compressed air nozzles, 8 compressed air no...

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Abstract

The invention relates to a dry-type superfine powder magnetic separator. The separator is characterized by consisting of a magnetic separation bin (1), a cloth screen (2) and a draught fan (3) which are connected in turn through pipelines, wherein the side wall of the magnetic separation bin is provided with a feed inlet (101), while the bottom is provided with a scarp outlet (104); the bottom of the magnetic separation bin is provided with a group of compressed air nozzles (105); the middle part of the magnetic separation bin is provided with three layers of stainless steel cylinders (102a); and a ferromagnetic bar (103) is arranged in each stainless steel cylinder (102a). When the magnetic separator is used, compressed air is sprayed into the magnetic separation bin through the nozzles; superfine powder is transpired under the action of the compressed air, and is evenly dispersed to form fluidized mist superfine powder; the mist superfine powder flows to the cloth screen under negative pressure; ferromagnetic substances are adsorbed to the stainless steel cylinders which are inserted with the ferromagnetic bars; and magnetic impurities can be cleared and discharged from the scarp outlet by pulling the ferromagnetic bars out. The magnetic separator has the advantages of evenly dispersing the superfine powder and effectively removing the ferromagnetic impurities in the powder, and is applicable to superfine powder (the median particle diameter is less than 5 mu meters, and the maximum particle diameter is less than 10 mu meters).

Description

Technical field: [0001] The invention relates to a device for removing ferromagnetic substances in non-metallic mineral powder, in particular to a device for removing magnetic impurities in silicon micropowder. Background technique: [0002] The powdery materials or ultra-fine powders used in the electronics, chemical, ceramic and other industries generally contain ferromagnetic substances. The existence of ferromagnetic substances will affect the quality of products, especially non-metallic minerals used in the electronics industry. Powder, such as excessive iron content will affect the dielectric properties of electronic products. Therefore, how to remove the ferromagnetic substances is a very important issue for the powder industry. [0003] The magnetic separation equipment used in the non-metallic mineral industry generally has a complex structure and is not suitable for ultra-fine powders. For example, the wet strong magnetic separator with the patent number 97238367....

Claims

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Application Information

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IPC IPC(8): B03C1/02
Inventor 蒋学鑫周建民曹宇程松波吴兵
Owner BENGBU ZHONGHENG NEW MATERIALS SCI & TECH CO LTD
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