Advantages of jet mill
A good grinding effect is the advantage of the jet mill, but the problems of high cost, high energy consumption, and easy abrasion of the equipment have always been the weaknesses of the jet mill. In recent years, with the continuous improvement of the technical level of the industry, the quality and performance of the products have been significantly improved, and the jet mill has a good market application prospect.
At present, the main objective of the development of the grinding industry in the world is to increase the fineness while increasing the output and expand the scope of application, such as the grinding of materials with high fibrous, high hardness, high toughness, viscous and elasticity, low-temperature grinder, inert gas protection Grinding machines are also the focus of many manufacturers’ research and development.
Grinding is a very important part of the pharmaceutical production process, and the grinding equipment should not be underestimated. Among them, jet mills are used in almost all fine processing industries, such as medicine, food, chemical industry, etc., and occupy a special position in many specific powder fields.
The jet mill grinds the material through the impact between the material particles under the action of high-speed airflow, and the impact, friction, and shearing of the airflow on the material and the impact, friction, and shear between the material and other parts. It has the following main characteristics:
1. The grinding temperature is low, and it can grind materials with heat sensitivity and low melting point. When the gas is sprayed from the nozzle and expands adiabatically, the gas will cool itself, thereby offsetting the heat generated by the collision and friction of the material.
2. Short production cycle and high powder collection rate. Due to high-speed collision and closed grinding, the probability of collision between materials is high, and there is no leakage of dust.
3. Products with high purity (less pollution) and uniform particle size distribution can be obtained.
4. For some materials that have to be wet-milled, it can also be dry-milled by jet milling to obtain uniform and fine powder.
5. A variety of combined operations can be realized, and the drying operation can be realized at the same time as grinding.
It can be seen from the above that the jet mill plays an important role in the grinding process of the pharmaceutical industry, and with the continuous development of the pharmaceutical industry, the status of the jet mill will continue to rise.
The extensive processing methods in the past can no longer meet the requirements of traditional Chinese medicine production. Traditional grinders have certain limitations in many aspects such as powder particle size, powder extraction rate, powder collection rate, and preservation of effective ingredients. Air jet milling technology will provide a new way to develop ultra-fine Chinese medicine powder with better curative effect and better varieties.
In the future development road, if the airflow grinding technology is introduced into the processing link of Chinese medicine, a brand-new grinding technology can be created, which not only enriches the content of traditional processing, but also brings a new look to the processing and production of Chinese medicine. It will become the growth point of new technologies in the traditional Chinese medicine industry.
As an important grinding equipment, the jet mill requires continuous technological innovation to improve product performance, improve product structure, and increase the grinding particle size and purity. The research and development of ultra-fine jet mills will be a good choice.