In recent years, the crushing equipment has been greatly improved on the basis of the previous, its structure has been continuously improved, and the crushing performance has been continuously improved. The crushing mechanism of the jet mill determines its wide application range and high fineness of finished products. Therefore, the device has been widely used in the pharmaceutical industry.
Air flow pulverizer, unlike other pulverizers, is under the action of high-speed air flow, the material through the impact between its own particles, the impact of gas flow on the material and the shear and the impact of materials and other parts, friction, shear and make the material crushed .
It is understood that the flow crushing can be operated under aseptic conditions; the production process is continuous, the production capacity is large, and the degree of automation and automation is high. However, mechanical impact mills, vibratory mills, and agitation mills often have long production cycles, resulting in low production efficiency. When the materials are crushed, a large amount of heat is generated, resulting in deterioration of the heat-sensitive materials. Furthermore, the wear of the equipment may contaminate the product. . Therefore, these mechanical pulverizers can not fully satisfy people's increasingly high requirements for ultra-fine powder materials, and the airflow crushing equipment has a tendency to replace mechanical pulverizers in the production of ultra-fine powders.
In order to meet the higher requirements of particle size, purity, and particle size distribution of powder products for the development of information technology, biotechnology, and new material technologies, research on ultra-fine jet crushing technology should improve and optimize ultra-fine jet crushing on an existing basis. Equipment, development of new types of equipment, and emphasis on the matching design of crushing and grading systems.
In addition, there are not many large-scale equipment in China. In the above-mentioned ultra-fine airflow mill, compared to the fluidized-bed collision jet mill, it has obvious advantages. Therefore, theoretical research should be strengthened to guide the design of the grinding equipment. Since the biggest drawback of the airflow mill is its low energy utilization, it should seek ways to reduce energy consumption and increase energy efficiency.
Air flow pulverizer, unlike other pulverizers, is under the action of high-speed air flow, the material through the impact between its own particles, the impact of gas flow on the material and the shear and the impact of materials and other parts, friction, shear and make the material crushed .
It is understood that the flow crushing can be operated under aseptic conditions; the production process is continuous, the production capacity is large, and the degree of automation and automation is high. However, mechanical impact mills, vibratory mills, and agitation mills often have long production cycles, resulting in low production efficiency. When the materials are crushed, a large amount of heat is generated, resulting in deterioration of the heat-sensitive materials. Furthermore, the wear of the equipment may contaminate the product. . Therefore, these mechanical pulverizers can not fully satisfy people's increasingly high requirements for ultra-fine powder materials, and the airflow crushing equipment has a tendency to replace mechanical pulverizers in the production of ultra-fine powders.
In order to meet the higher requirements of particle size, purity, and particle size distribution of powder products for the development of information technology, biotechnology, and new material technologies, research on ultra-fine jet crushing technology should improve and optimize ultra-fine jet crushing on an existing basis. Equipment, development of new types of equipment, and emphasis on the matching design of crushing and grading systems.
In addition, there are not many large-scale equipment in China. In the above-mentioned ultra-fine airflow mill, compared to the fluidized-bed collision jet mill, it has obvious advantages. Therefore, theoretical research should be strengthened to guide the design of the grinding equipment. Since the biggest drawback of the airflow mill is its low energy utilization, it should seek ways to reduce energy consumption and increase energy efficiency.