Powder fixed hole blanking adjustment device and adjustment method

Abstract

The invention relates to a blanking adjusting device of a powder fixed hole and an adjusting method of the blanking adjusting device. The blanking adjusting device is structurally formed as follows: an inclined feeding channel is arranged; a feeding opening is formed in the top of the inclined feeding channel; a discharging opening of the inclined feeding channel is communicated with a feeding opening of a discharging cavity; a blanking opening is formed in the bottom of the discharging cavity; an adjusting hammer head for controlling a blanking flow is arranged in the discharging cavity; the lower part of the adjusting hammer head is conical and the discharging opening is a cylinder; the upper part of the adjusting hammer head is fixedly connected with one end of an adjusting rod; the other end of the adjusting rod is connected with a power device. The blanking adjusting device of the powder fixed hole has the advantages that the quantitative and uniform blanking of powder materials is realized by a method of linearly changing a blanking hole of the powder materials according to the properties of the powder materials, so as to realize the continuous adjustment of a flow. The blanking adjusting device of the powder fixed hole is simple in structure, practical and few in maintenance amount, is not influenced by powder impurities, and has a high application value. The blanking adjusting device of the powder fixed hole is good in sealing performance, few in transmission structures, easy to operate and few in maintenance times, and is applicable to adjusting the flow of aluminum oxide of an electrolytic aluminum factory.

Description

technical field [0001] The invention relates to a blanking regulating device, in particular to a powder hole-fixed blanking regulating device and an adjusting method which are mainly used in aluminum smelting and other industries for the quantitative blanking control of alumina and other powder materials. Background technique [0002] In the electrolytic aluminum industry, alumina is generally driven into the alumina storage bin next to the electrolytic series by tank truck or bagged material, and then transported by belt or dense phase into the daily storage bin between the electrolytic series. The bin goes through the electrolytic flue gas purification system and then enters the fluorine-loading bin, and finally the fluorine-loading bin enters the electrolytic cell through the ultra-dense phase conveying system for electrolytic production. [0003] When alumina enters the electrolytic flue gas purification system from the daily storage silo, its flow rate needs to be stric...

AI Technical Summary

Problems solved by technology

Since alumina is a powder material, its fluidity is similar to that of water in a fluidized state, so it is difficult for electric arc valves and flapper valves to accurately control the flow rate, either causing the flow rate to be too large or causing the flow to be too small, which affects the purification system. Stable operation has a very adverse effect, which makes the damage of alumina in the purification system different, and finally affects the requirements for the uniformity of raw materials in electrolytic production

At the same time, the fluidity of alumina is very good, and frequent operation of the valve will cause material leakage from the valve body, which will affect the normal production

Although the rotary feeding equipment can meet the requirements of quantitative feeding, due to factors such as impurities in it, it often causes damage to the equipment and reduces the effectiveness of the equipment.

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