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Superfine continuous machining process for silicon iron powder

A processing technology and technology of ferrosilicon powder, which is applied in the field of ultrafine and ultrafine continuous processing technology of ferrosilicon powder, can solve the problems of long crushing time, low production efficiency, and difficult quality assurance, so as to prevent material oxidation, high production efficiency, The effect of stable material quality

Inactive Publication Date: 2005-05-11
HUANTAI DONGQI POWDER EQUIP CO LTD
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Problems solved by technology

Most of the existing technologies rely on high-frequency vibrating mills for intermittent production. To crush ferrosilicon powder with a single machine to achieve the required particle size of the finished product, measures such as vacuuming and argon (or nitrogen) gas must be taken to prevent it from being oxidized and crushed. It takes a long time and is not easy to control, and the production efficiency is low. It can only produce about 10kg / hour, so it is difficult to meet the industrial needs of large quantities, and the quality is difficult to guarantee

Method used

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  • Superfine continuous machining process for silicon iron powder
  • Superfine continuous machining process for silicon iron powder

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Embodiment Construction

[0013] The production equipment used in this process is as follows: figure 1 Alternate installation shown.

[0014] After the production equipment is ready, when the processing and production of ferrosilicon powder needs to be carried out, the centrifugal fan 15 is started, and the centrifugal fan 15 makes the cyclone unloader 10 enter the working state through the air duct 11, and then the granular ferrosilicon powder after pre-crushing Put it into the hopper 4, and send it to the high-frequency vibration mill 1 through the material pipe 2 through the screw feeder 3 for ultra-fine crushing, and the ultra-fine crushed ferrosilicon powder passes through the material pipe 9 under the action of the cyclone unloader and feed pipe 8 into the multi-stage screening machine 7 for screening, the qualified part of the ferrosilicon powder is screened and classified and transported into the stocker 13 through the feed pipe 12, and the unqualified part passes through the feed pipe 5 and th...

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Abstract

A technology for continuously preparing the ultramicro or superfine ferrosilicon powder includes such steps as precrushing the ferrosilicon, pulverizing by high-frequency vibration grinder, multi-class cieving for classifying, storing the qualified powder in collector, returning the unqualified particles back to said ginder. Its system is composed of feeding pipe, HV vibration grinder, cyclone unloader, and multi-class sieving unit.

Description

technical field [0001] The invention relates to a processing method for ultra-fine crushing and grinding of solid metal, in particular to an ultra-fine and ultra-fine continuous processing process of ferrosilicon powder. Background technique [0002] Ferrosilicon alloy powder is used as a suspension medium in the mineral processing industry, and there is no more research on its pulverization processing at home and abroad. The crushing of ferrosilicon is limited by many conditions, and its most notable feature is that it is easily oxidized when crushed to a certain particle size, and the oxidized ferrosilicon powder will lose its original function. Therefore, the material temperature must be strictly controlled to prevent its oxidation. Most of the existing technologies rely on high-frequency vibrating mills for intermittent production. To crush ferrosilicon powder with a single machine to achieve the required particle size of the finished product, measures such as vacuuming...

Claims

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Application Information

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IPC IPC(8): B22F9/04
Inventor 蔡立李霞孙农三司维利岳梁彩
Owner HUANTAI DONGQI POWDER EQUIP CO LTD
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