Why is alumina transported pneumatically?

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Why is alumina transported by pneumatic power? Alumina powder is a high-hardness compound with a melting point of 2054°C and a boiling point of 2980°C. It is often used to make refractory materials that can be ionized at high temperatures. In industrial production, alumina powder is mainly prepared from bauxite and diaspore, and chemical methods are used to prepare alumina with higher purity. Alumina powder is a white solid, insoluble in water, odorless and tasteless. It can also be used to analyze the hardness of reagents, organic solvent dehydration, adsorbents, organic reaction catalysts, abrasives, abrasives, aluminum smelting materials, refractory materials, and other dental cements, ceramics, pigment fillers, mordants, metal aluminum and other materials. It can also be used for heat conduction, polishing, electroplating, catalysts, etc. Alumina powder pneumatic conveying is also called alumina powder pneumatic conveying. It mainly uses the energy of air flow to transport particles along the direction of air flow in a closed conveying pipe. Horizontal transportation, easy operation, simple structure, and can be tilted at multiple angles. During transportation, physical or chemical operations such as material cooling, dust removal, drying and air flow classification can also be performed simultaneously. Compared with traditional mechanical conveying, pneumatic conveying of alumina powder has the characteristics of fast conveying speed, long conveying distance, multiple loading and unloading, and one-time loading and unloading. During the pneumatic transportation of alumina powder, the materials are transported in sealed pipelines. The transportation distance can reach more than 500 meters. The surrounding environment is good and it can be transported over long distances. Pneumatic conveying of alumina powder is also called alumina. According to the density and air pressure of the alumina powder material in the transportation pipeline, there are alumina powder dilute phase conveying system, alumina powder high-density phase transportation system, alumina powder high-density phase transportation system, and alumina powder positive pressure conveying system. Pneumatic conveying system, alumina powder negative pressure suction pneumatic conveying system, etc. 1. Alumina powder dilute phase pneumatic conveying system: Under normal circumstances, the solid content of alumina powder during transportation is 1~10kg/m3, and the transportation distance is generally within 300m. The materials of this system are suspended in vertical pipes, which have the characteristics of uniform distribution, flight conditions in horizontal pipes, high wind speed, and low conveying pressure. 2. Alumina powder high-density phase pneumatic conveying: Under normal circumstances, during the transportation process of alumina powder high-density phase pneumatic transportation, the solid or solid ratio is greater than 25 10-30kg/m3, and the transportation distance can reach more than 500m, becoming a fluid. Pulsating groups with high pneumatic pressure and high pressure can be used for long-distance transportation and slow transportation speed. Due to the high conveying pressure, the material conveying pipes for pneumatic conveying of Longgu alumina powder are made of wear-resistant materials and intermittent inflatable tank type. Dense conveying can input granular materials into conveying pipelines for conveying. 4. Alumina powder negative pressure suction pneumatic conveying system: can be used for centralized transportation from one place to multiple places. Its high water content makes it easier to transport than pressure transport. The material pipe can be configured with one or more branch pipes. In addition to transporting materials from multiple supply points to the sequential unloader, the materials are transported using negative pressure to facilitate water evaporation, with low capital investment and fast transport speed. During the transportation of alumina powder materials, the pressure in the pipeline is lower than normal pressure and self-priming, but the materials must be discharged under negative pressure, and the negative pressure air transport distance is generally shorter. 5. Alumina powder positive pressure and pressure pneumatic conveying system: it can disperse alumina powder materials from one place to multiple places. Compared with positive air transport, materials are more easily discharged from the outlet and relatively sucked away. Compared with the model, the concentration and transmission distance can * * The air suction and air supply system has a simple structure and small fan wear. 6. Alumina powder mixed pneumatic conveying: materials can be extracted from multiple locations and transported to multiple locations at the same time. In addition, the conveying distance is long, and the gas containing materials passes through the fan, which accelerates the wear of the fan and makes the entire device more complex.