Asynchronous dry magnetic separator

Abstract

The invention discloses an asynchronous dry magnetic separator comprising a support frame. A feed hopper is disposed at the left upper end of the support frame; a roughing conveyer belt, an adjustable flat plate system and a vibrational conveyer are obliquely arranged on the support frame from the upper left end to the lower right end; the adjustable flat-plate magnetic system and the vibrational conveyer are disposed above and below a lower branch of the roughing conveyer belt; a lower outlet of the feed hopper is aligned to the front end of the vibrational conveyer; a scavenging magnetic roller is mounted on the support frame below a tail outlet of the vibrational conveyer; a receiving hopper is mounted below and on the right of the scavenging magnetic roller. The roughing conveyer belt suspends and sucks up strong magnetic mineral monomers or rich aggregates in material conveyed on the vibrational conveyer; during forward conveying, alternating poles and transient magnetic fields of the flat plate system help roll and drop gangues or lean aggregate inclusions, and thus high quality of rough concentrate is achieved. The scavenging magnetic roller helps scavenge and recover the lean aggregates of the weak magnetic minerals or strong magnetic minerals, thus ensuring the index of tailings.

Description

technical field [0001] The invention relates to mineral processing equipment, in particular to a magnetic asynchronous separation dry type magnetic separator. Background technique [0002] "Being able to throw away early and harvest early" is one of the basic principles of beneficiation. The indicators of dry separation waste directly affect the economic interests of the processing plant, especially in recent years when the overall form of the mining industry is weak and the price of iron ore is at a low level. How to reduce production costs as much as possible is the key to the survival of enterprises. [0003] The mainstream dry magnetic separators currently used in the market, such as magnetic drums, magnetic pulleys, and box-type dry separators, are prone to unclear separation during the waste process due to the separation form, low waste rate, and concentrated ore after waste. The problem of small grade improvement is especially prominent when dealing with fine powder ...

AI Technical Summary

Problems solved by technology

[0003] The mainstream dry magnetic separators currently used in the market, such as magnetic drums, magnetic pulleys, box-type dry separators, etc., are likely to cause unclear separation, low discarding rate, and concentrated ore after discarding due to the sorting form. The problem of small grade improvement is especially prominent when dealing with fine powder particles such as finely crushed or high-pressure roller mill products; on the other hand, if the ore contains both strong magnetic minerals (such as magnetite, etc.) and weak magnetic minerals (such as hematite, ilmenite, specularite, garnet, etc.), the separation needs to be processed step by step by different magnetic separators, which is likely to cause problems such as complicated separation process and difficult adjustment of separation index.

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