Talk to the crush machine classification today. introduces the pulverizer mechanical classification.
1. The ball mill routine ball mill has always been the main machining machine in the fine mill, mainly by impact. When the particle size of the material is less than 20 μm, its efficiency is low, the energy consumption is large, and the machining time is long. Due to the low production efficiency of the ball mill, the pulverization time is generally not used in the development of traditional Chinese medicine resources. The stirring ball mill is a superfine pulverizer with a promising in the ultrafine pulverizer and high energy utilization. It consists essentially of agitator, cylindrical, transmission and rack. The agitator is operated at a certain speed to move the abrasive medium, and the material is pulverized using friction and a small amount of impact grinding in the abrasive medium, so that the efficiency is greatly improved when the material is less than 20 μm of the machining.
2, gas flow grinding is also known as fluid mill mill, is a high pressure using compressed air or superheated steam to produce high pressure and generates supersonic flow through the nozzle to obtain a huge kinetic energy of the particles. The two-way motion-moving particles collide with each other or impact with the fixed plate to achieve the purpose of pulverization. Compared with the ordinary mechanical ultrafine pulverizer, the pulverizer can be smashed finer, the particle size distribution range is narrower, that is, the particle size is more uniform. Also because the gas is expanded at the nozzle, the pulverization process does not accompany heat, so the pulverization is very low, which is particularly important for the ultrafinite pulverization of low melting points and thermal materials. Crushing machine is difficult to pulverize the fibrous, toughness in the herbs, and there is a relatively high speed airflow in the pulverization operation, and the volatile ingredient of the drug can be taken away, resulting in a loss of the drug, so it is not suitable for the ultrafrite of plant Chinese medicine, only Suitable for traditional Chinese medicines with a fragility, such as minerals, crustal, animal bone Chinese herbal medicines, etc.
3, vibration grinding, high frequency vibrating ultrafine pulverized machinery. Current Germany, Japan's ultrafine pulverization of the animals and plant pharmaceuticals is selected to vibrate grinding. High-frequency vibrating ultrafine pulverization is an impact, friction, shear, and other force generated by spherical or rod-shaped grinding, such as high-frequency vibration, to achieve ultrafine pulverization of materials. The vibration grinding spring support mill body is vibrated by a spindle with an eccentric piece, and the mill is typically cylindrical or groove. The vibration grinding is 10 to 20 times higher than that of ordinary grinding, and its pollination speed is much faster than the conventional ball mill, and the energy consumption is reduced.
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