Countercurrent classifier

A classifier and countercurrent technology, applied in the direction of solid separation, separation of solids from solids by air flow, chemical instruments and methods, etc., can solve the problems of wide particle size distribution of finished products, low classification accuracy, and low extraction rate of fine powder, etc. Achieve the effects of reducing energy consumption, improving classification accuracy and fine powder extraction rate, and improving hardness and rigidity

Inactive Publication Date: 2012-07-18
山东惟远新材料装备有限公司
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  • Abstract
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a countercurrent classifier to solve the technical problems of low classification accuracy of viscous materials and materials with D97≤2um, low fine powder extraction rate and wide particle size distribution of finished products

Method used

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] like figure 1 and figure 2 Commonly shown, a countercurrent classifier includes a body 2, and the body 2 is provided with a classifying wheel 3 driven by a power device, the power device is preferably a frequency conversion motor 1, and the classifying wheel 3 is located on the body 2 Inside, the surface of the blade of the classifying wheel 3 is provided with a carburized layer, which increases the hardness and rigidity of the blade, ensures that the blade does not deform when the classifying wheel 3 rotates at a high speed, and prolongs the service life of the classifying wheel 3. A cyclone feed cover 5 is provided, and a feed port 6 is arranged on the cyclone feed cover 5, and the feed port 6 is arranged along the tangential direction of the body 2 and is located at the position of the classifying wheel 3. The body 2 is provided with an ins...

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Abstract

The invention discloses a countercurrent classifier, belonging to the technical field of a classifier. The countercurrent classifier comprises a classifier body, wherein a classifying wheel driven by a power device is arranged on the classifier body and is positioned in the classifier body. A whirlwind feeding cover is arranged on the classifier body, a feeding port is arranged on the whirlwind feeding cover, and the feeding port is arranged along the tangential direction of the classifier body and is positioned at the classifying wheel. The countercurrent classifier solves the technical problems of low classifying precision, low fine powder extraction rate and wide particle size distribution of finished products of viscous materials and materials of D97 being at most 2mum. The countercurrent classifier is widely applied to fine classification of solid particles.

Description

technical field [0001] The invention relates to a solid powder classification device, in particular to a countercurrent classifier. Background technique [0002] The traditional dry air classifier is composed of a motor, a classifying wheel, and a body. It realizes effective classification of materials by adjusting the speed of the classifying wheel and matching with a reasonable secondary air inlet. However, the traditional airflow classifier has disadvantages such as small processing capacity, low classification accuracy, low fine powder extraction rate, and not strict control of large particles, which causes difficulties for fine powder manufacturers. [0003] At present, there are two types of dry classification commonly used at home and abroad: horizontal classifier and vertical separator. Traditional horizontal classifiers and vertical classifiers generally have defects such as low classification accuracy, low extraction rate of fine powder, and wide particle size dist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B07B7/083
Inventor 任瑞清
Owner 山东惟远新材料装备有限公司
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