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High-speed airflow multi-stage ultra-thin powder mill

A technology of ultra-fine powder and high-speed airflow, which is applied in the direction of grain processing, etc., can solve the problems of low processing output, low hardness of feed material, small effective crushing work, etc., achieve high energy utilization rate, increase service life, and low energy loss Effect

Inactive Publication Date: 2005-03-16
任良勇
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Problems solved by technology

[0009] Existing mechanical crushing equipment has the disadvantages of low processing output, high energy consumption, small effective crushing work, small feed hardness of suitable raw materials, and large product fineness.
Chinese patent 001354655 provides a high-speed airflow multi-stage ultra-fine powder mill, which fundamentally solves the problems of the above-mentioned equipment, but it also has the following disadvantages: 1. The blades are easily damaged under the action of strong airflow; 2. The short residence time of the body in the turbulent flow field cannot be fully finely ground and diffused.

Method used

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Embodiment Construction

[0036] A high-speed airflow multi-stage ultra-fine powder mill, which is composed of a power drive device 1, a grinding chamber 5, a fine powder recovery device, and a feeding device 15; Feeding device, and the vertical turbulent disk 4 is connected with the grinding chamber 5; two turbulent flows 4 are coaxially installed on the main shaft 2 of the grinding chamber 5, and an inert wind wheel 19 is coaxially installed between the two turbulent disks 4 The discharge port of the grinding chamber 5 is connected with the airflow crushing chamber 7 through the discharge pipe 17, and the place where the airflow crushing chamber 7 is connected with the grinding chamber 5 discharge pipe 17 is provided with a high-speed airflow nozzle 22 (referring to Fig. 4); The upper part of the chamber 7 is connected with the separation chamber 8, and the separation chamber 8 is connected with the first-stage cyclone recovery hopper 12 and the dust removal powder collection hopper 13 connected with ...

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Abstract

The invention relates to a kind of ultramicro fine-powder mechanical grinding apparatus, which contains motive power driving mechanism, grinding cave, recovery device of fine powder and so on. There is a turbulence disc set in the main shaft of the grinding cave in the same shaft, which is composed with rim plate and same rotating direct blade in both sides of the rim plate, and there is a wear-prevention air cushion in both sides of the turbulence disc blade. There is a rotator settled in the outset of the lay making in the grinding cave, and above the rotator there is an atmospheric pressure screen. The invention has low energy consumption, high productive output, fine product fineness, little wastage, great effective grinding function, and long service life.

Description

technical field [0001] The invention relates to an ultrafine powder processing mechanical equipment, in particular to a high-speed airflow multistage ultrafine powder mill. Background technique [0002] The powder industry is an important basic raw material industry, and powder preparation technology occupies an important position in the chemical industry and material industry. In fact, human beings' understanding and application of powder began a long time ago. Powder technology has gradually developed from the preparation of ceramics in ancient times, and stimulated the industrial revolution and the chemical industry. In 1943, J.M. Dallavalle of the United States published "Powder Science, Microparticle Technology", which summarized powder preparation and application for the first time. Subsequently, Hans Rumpf and others in Germany classified powder preparation, and involved physical chemistry and chemical thermodynamics in the powder preparation process, laying the fou...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C19/06B02C23/08
Inventor 任良勇
Owner 任良勇
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