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Powder grading method

A classification method and powder technology, applied in solid separation, chemical instruments and methods, separating solids from solids with airflow, etc., can solve the problems of low classification efficiency, complicated operation, and small amount of processed materials, and achieve classification High efficiency, simple operation, and the effect of processing a large amount of materials

Inactive Publication Date: 2013-09-11
NANTONG SANXIN HEAVY IND
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  • Abstract
  • Description
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Problems solved by technology

[0003] The existing powder classification method has the shortcomings of low classification efficiency, small amount of processed materials and complicated operation

Method used

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Experimental program
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Embodiment Construction

[0013] The powder classification method of the present invention comprises the following steps:

[0014] 1) The material enters the pulverizer for grinding;

[0015] 2) The ground material is fed into the powder classifier, and the primary air, secondary air and tertiary air are sent into the powder classifier,

[0016] A rotating airflow is generated, and the materials are sorted in the rotating airflow;

[0017] 3) After sorting, the large particle materials are returned to the pulverizer for grinding; the gas enters the high-efficiency bag filter for re-sorting; the dust is collected by the dust collection point;

[0018] 4) The exhaust gas sorted from the high-efficiency bag filter is discharged through the fan, and the finished materials are sorted out

[0019] collect.

[0020] Finally, it is noted that the above embodiments are only used to illustrate the technical solution of the present invention without limitation, other modifications or equivalent repla...

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Abstract

The invention provides a powder grading method. The powder grading method comprises the following steps that: (1) materials enter a grinder for grinding; (2) the ground materials are fed into a powder concentrator, primary air, secondary air and tertiary air are fed into the powder concentrator so as to generate rotary air flow, and the materials are sorted in the rotary air flow; (3) after sorting, large-particle materials return and enter the grinder for grinding, gas enters a high-efficiency bag-type dust collector for re-sorting, and the dust is collected by dust-collecting points; (4) waste gas sorted out from the high-efficiency bag-type dust collector is exhausted by a fan, and the sorted-out finished materials are collected. The powder grading method provided by the invention can grade powder and is applicable to grading powdery materials in the cement industry or grading equivalent materials in other industries; compared with a traditional air powder-grading method, the powder grading method provided by the invention has the advantages that the grading efficiency is high, the material treating amount is large, the particle grading size range of a product is narrow, the operation is simple, and the adjustment of the particle diameter is convenient.

Description

technical field [0001] The invention relates to a powder classification method, which belongs to the technical field of material separation. Background technique [0002] Powder classification is to use the principle of horizontal vortex of air to classify powder. It is suitable for the cement industry to classify powdery materials or other industries to classify equivalent materials. [0003] The existing powder classification method has the disadvantages of low classification efficiency, small amount of materials to be processed, and complicated operation. Contents of the invention [0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a powder classification method. [0005] The powder classification method of the present invention comprises the following steps: [0006] 1) The material enters the pulverizer for grinding; [0007] 2) The ground material is fed into the powder classifier, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C23/12B02C23/14B07B7/086
Inventor 周鹏程
Owner NANTONG SANXIN HEAVY IND
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