Special aluminum oxide vibratory screening device

Abstract

The invention discloses a special aluminum oxide vibratory screening device to remove impurities in aluminum oxide. The special aluminum oxide vibratory screening device comprises a vibration source and a casing. A material inlet is arranged at the upper end of the casing, and the lower end of the casing is fixedly connected with a flange which is arranged at the material inlet position. The flange at the material inlet position, a screen group and a material outlet flange are integrally connected in a bolt connection mode. After a bolt is demounted, the screen group can be drawn out from between the flange at the material inlet position and the material outlet flange. The lower end of the material outlet flange is fixedly connected with a material outlet and a sundry port. The screen covers the upper end of the material outlet. An air inlet used for conveying light materials is formed on the casing. The special aluminum oxide vibratory screening device has the advantages that the mechanical vibration and wind fluidization conveying mode is adopted so sundries can be removed and the aluminum oxide conveying capacity of a vibratory screen can be improved; the screen group can be drawn out from between the two flanges so the screen group can be changed and repaired conveniently.

Description

technical field [0001] The invention relates to a special electromagnetic vibration screening device for alumina, which can remove impurities in alumina particles and can be widely used in alumina purification systems in the electrolytic aluminum industry. Background technique [0002] In the electrolytic aluminum industry, the main raw material used is alumina particles, which have the characteristics of high hardness, small particle size, good fluidity and easy moisture absorption and compaction, and contain impurities such as stones and broken woven bags. [0003] Alumina containing impurities often causes related equipment failures, increases operating and maintenance costs, and seriously affects the production efficiency of aluminum electrolysis. In order to improve this efficiency, alumina must be purified to remove impurities in alumina. [0004] At present, vibrating sieves are commonly used to remove impurities in particulate matter. This vibrating sieve is mostly s...

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Problems solved by technology

[0003] Alumina containing impurities often causes related equipment failures, increases operation and maintenance costs, and seriously affects the production efficiency of aluminum electrolysis. In order to improve this efficiency, alumina must be purified to remove impurities in alumina

[0004] At present, vibrating sieves are commonly used to remove impurities in particles. This vibrating sieve is mostly suitable for the mining industry, and cannot purify alumina particles efficiently and stably, nor can it meet the high standard purification requirements of alumina particles.

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