A kind of alumina reaction kettle with crushing and sieving feeding

Abstract

The invention discloses an aluminum oxide reaction still with pulverizing, screening and loading functions. The aluminum oxide reaction still comprises a loading box, a loading pipe and a reaction still body. A reaction cavity is formed in the reaction still body, a material guiding pipe is arranged at the upper end of the reaction cavity, a screening net is arranged at the upper end of the material guiding pipe, the loading pipe is fixed to the left end of the reaction still body, a feeding port is formed between the loading pipe and a loading cavity, a spiral conveyor is arranged in the loading pipe, the loading box is arranged at the lower end of the loading pipe, and the spiral conveyor penetrates through the bottom of the loading box in an inserted mode. According to the aluminum oxide reaction still with the pulverizing, screening and loading functions, a stirring rod is driven to stir raw materials to be dispersed while the spiral conveyor conducts loading, the situation that harms are caused to human bodies because people are in contact with chemical materials for a long time so as to complete loading is avoided, the safety is high, a grinding driving rod cooperates with the screening net to pulverize the raw materials, then the raw materials with grain sizes being qualified are screened through the screening net, the contact areas of the raw materials after being pulverized and screened is large so that a reaction occurred in the preparation process of aluminum oxide can be more efficient, and the reaction can be more thorough.

Description

technical field [0001] The invention relates to an alumina reaction kettle, in particular to an alumina reaction kettle with crushing, screening and feeding. Background technique [0002] Alumina, industrial alumina is prepared from bauxite and diaspore. For Al2O3 with high purity requirements, it is generally prepared by chemical methods. There are many isomorphous crystals of alumina, and there are more than 10 kinds known at present, and there are mainly three crystal forms, namely γ-Al2O3, β-Al2O3, and α-Al2O3. Among them, the structure is different and the properties are also different, and it is almost completely converted into α-Al2O3 at a high temperature above 1300 °C. [0003] With the rapid development of my country's electrolytic aluminum, ceramics, medicine, electronics, machinery and other industries, there is still a large room for growth in the market demand for alumina, and the output of alumina will continue to increase. In addition, given that the constr...

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Problems solved by technology

[0004] However, at present, the feeding of the reactor is mostly done by hand, and the material is manually sent to the material inlet on the reactor. Generally, the reaction material is a chemical raw material with toxicity, and long-term close contact with the human body will cause damage to the human body.

At the same time, the raw materials are directly added after agglomeration, and the contact area of ​​the raw material contact area becomes smaller, which is not conducive to the reaction

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