Alumina flow control apparatus

Abstract

The invention relates to an alumina flow control apparatus, especially to an alumina flow control apparatus applied in an electrolytic flue gas purifying system or a hyper-dense phase conveying system in the industry of electrolytic aluminum. The alumina flow control apparatus comprises a blanking tube; the discharge end of the blanking tube is connected with the charging end of a rotary feeding device, the discharge end of the rotary feeding device is connected with one end of a flowmeter, the other end of the flowmeter is connected with the charging end of a vibrating screen, and the discharge end of the vibrating screen is connected with a conveying device. The advantages and effects of the invention are as follows: control of flow precision in the conveying process of alumina is improved; effective adjusting of alumina flow is realized; operational stability of a system is enhanced; long-term and stable operation of an electrolytic aluminum production system and an electrolytic purification system is guaranteed; the apparatus has critical economic and social values.

Description

technical field [0001] The invention relates to a flow control device, in particular to an alumina flow control device used in an electrolytic flue gas purification system in the electrolytic aluminum industry or a super-dense phase conveying system in the electrolytic aluminum industry. Background technique [0002] In the electrolytic aluminum industry, the main raw material in the aluminum electrolysis process is granular alumina, so the transfer and measurement of alumina is an important part of the material transportation process in the electrolytic aluminum industry. Due to the high hardness and fine particles of alumina particles, the degree of wear and tear on equipment and pipelines is large, and because alumina may be mixed with impurities such as sand and broken woven bags during the production and transfer process, and the situation of long-term storage of alumina Under the influence of moisture absorption and other factors, a certain amount of agglomeration will...

AI Technical Summary

Problems solved by technology

Since alumina is a fine granular material, it cannot be fed stably for a long time, and sometimes agglomerates will form at the outlet of the arc valve and the storage bin, blocking the flow of alumina; once the opening of the arc valve is adjusted, the alumina will increase rapidly. The flow rate of the particles cannot achieve the purpose of continuously and stably controlling the flow rate of alumina, nor can it meet the needs of micro-adjustment of the flow rate of alumina according to production needs

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