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Classifying system for airflow mill

A classification system and jet mill technology, which is applied to the separation of solids from solids by air flow, solid separation, and grain processing, etc., can solve the problems of high production cost of classification wheels, high installation accuracy requirements, and easy entry of coarse particles. Achieve the effect of low cost, low installation accuracy requirements, and reduction of quality accidents

Active Publication Date: 2008-04-23
NINGBO KONIT IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of use, there are problems such as high production cost of the grading wheel, high installation accuracy requirements, inconvenient maintenance, many wearing parts, easy to enter coarse particles, and many faults.

Method used

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  • Classifying system for airflow mill
  • Classifying system for airflow mill
  • Classifying system for airflow mill

Examples

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Embodiment Construction

[0021] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0022] As shown in Figures 5 and 6, a jet mill classification system of the present invention includes a classification wheel 20, a transition chamber 21, and a drive spindle system.

[0023] Flat blade classifying wheel 20 (as Fig. 7,8), adopt wear-resistant metal material to make, evenly distribute 40~100 slotted holes 28 on the 360 ​​degree direction of its disc; material.

[0024] The lower end of the transition chamber 2...

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Abstract

The present invention relates to a sorting system of pneumatic mill. It includes sorting wheel, transion chamber and drive main shaft system. The sorting wheel is a plate blade sorting wheel made of wear-resistant metal material, on the plate blade sorting wheel 40-100 slotted eyes are uniformly distributed; the lower end of said transion chamber is connected with plate sorting wheel, its upper end is fixedly connected with drive main shaft, the middle of upper end surface has a projection for preventing material from piling up; the drive main shaft system has a cleaning dust-proofing device, in the cleaning dust-proofing device, between the drive main shaft and mill chamber they are sealed by using screw-seal and gas seal combination, drive main shaft material outlet cleaning is sealed by using labyrinth disk seal and the bearing is sealed by using rotating shaft combination seal. Said invention also provides the working principle of said sorting system and its concrete operation method.

Description

technical field [0001] The invention relates to a rotary classification system of a gas classifier, in particular to a closed-loop operation collision type fluidized bed airflow mill powder radial flat blade type classification system. Background technique [0002] In the prior art, various classifying wheel patents (such as: patent No. 89102002 airflow classifier, patent No. CN200420078321.5 superfine pulverizer classifying wheel assembly, patent No. 2004201083338 powder nano axial flow end-to-blade classifying wheel, etc.), All adopt the structure of cleaning disc inside the grinding chamber and axial classifying wheel (Fig. 1, 2). [0003] At present, in the powder metallurgy industry at home and abroad, the closed-loop operation of the colliding fluidized bed jet mill (as shown in Figure 3) is the most ideal crushing equipment. It consists of a gas source part 1, a raw material warehouse 2, a host system 3, and a cyclone system 4 , Dust collection system 5, induced draf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B07B7/083B02C23/08B02C19/06
Inventor 辜程宏樊旗根
Owner NINGBO KONIT IND
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