A kind of crushing method of crystalline calcium fluoride
A calcium fluoride and crystal technology, which is applied in the field of crushing crystal calcium fluoride, can solve problems such as low production capacity, powder pollution, and high difficulty in particle size control, and achieve the effects of simple control, high production efficiency, and stable particle size distribution range
Active Publication Date: 2018-11-16
CHINA NUCLEAR TIANJIN TECH DEV
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Problems solved by technology
The existing technology is easy to cause powder pollution, the particle size control is difficult, and the production capacity is low
Method used
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[0026] Below, the present invention is described in detail with reference to accompanying drawing and embodiment:
[0027] Such as figure 1 As shown, the crushing device used in the crushing method in the present invention includes a housing 1 placed on a vibration platform, an end cover 4 is provided at the opening of the side wall of the housing 1, and a crushing chamber 8 is formed inside the housing 1. The end cover 4 is provided with a feed port 5, and the other side wall of the housing 1 is provided with a discharge port 6, and the discharge port 6 is provided with a filter plate 7 with filter holes, and the housing 1 The inner wall is provided with a liner 2, and the crushing chamber 8 is provided with No. I vibrator 3, No. II vibrator 9, and No. III vibrator 10 with different spherical diameters. The housing 1 is also provided with a cooling water jacket. (not shown).
[0028] The ball diameters of the No. I vibrator 3 , the No. II vibrator 9 , and the No. III vibrat...
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Abstract
The invention discloses a crushing method of crystal calcium fluoride. The method comprises the following steps of introducing cooling water into a cooling water jacket, choosing a filtering pore plate and oscillators, adding crystal calcium fluoride, starting a vibration platform, and taking out calcium fluoride powder. According to the crushing method, linings and the oscillators made of Al2O3 ceramic are chosen, the phenomenon that the calcium fluoride powder is polluted by metal particles during the crushing process through conventional methods is avoided, and dust pollution in the crushing process is avoided due to the good sealing effect of the crushing method. According to the crushing method, the sphere diameters and the ratio of the oscillators and the size proportion of the oscillators in a crushing cavity chosen via numerous tests enable the particle size distribution scope of the crushed powder to remain stable at specific time. The crushing particle size is adjusted by crushing time, and control is simple; the calcium fluoride powder is subjected to resultant force of high-strength colliding, crushing, rubbing and the like of the oscillators in a fluidized state through the strong vibration of a vibration source, so that a micron-level crushing effect is achieved in a short time period and production efficiency is high.
Description
technical field [0001] The invention belongs to a crushing method, in particular to a crushing method of crystalline calcium fluoride. Background technique [0002] As an important raw material of nickel-based high-temperature self-lubricating materials, crystalline calcium fluoride needs to be ultrafinely pulverized, and the particle size distribution range and powder purity after pulverization must meet specific technical requirements. [0003] At present, the crushing method of crystalline calcium fluoride is generally produced by rolling and winnowing. The final powder is sucked into the cloth bag for collection. The existing technology is easy to cause powder pollution, the particle size control is difficult, and the production capacity is low. Contents of the invention [0004] The present invention is proposed to solve the problems in the prior art, and its purpose is to provide a method for pulverizing crystalline calcium fluoride. [0005] The technical scheme ...
Claims
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IPC IPC(8): B02C19/16B02C23/10B02C23/16B02C23/00
CPCB02C19/16B02C23/00B02C23/10B02C23/16B02C2023/165
Inventor 肖凯业许海郑文
Owner CHINA NUCLEAR TIANJIN TECH DEV