As a fine pulverization method in dry pulverization, the Chinese medicine jet mill has many types. So how to choose?

1. It is necessary to understand the main structure and principle of the current Chinese medicine jet mill on the market. According to the structure, the models are mainly divided into (the control granularity is arranged from coarse to fine): disc flow mill, fluidized bed vertical jet mill, fluidized bed horizontal jet mill, superheated steam jet mill.

2. After the equipment classification is clear, it is necessary to clearly understand the applicable industries of each model.

1) The disc jet mill is mainly used in the fields of medicine, food, etc. Due to its simple structure, it is easy to disassemble and clean and meet the requirements of clean production.

2) Fluidized bed vertical jet mill is mainly suitable for mass users, such as general industries such as chemical industry, minerals, abrasives, and refractory materials.

3) Compared with the vertical type, the fluidized bed horizontal jet mill and the grading impeller are installed horizontally to truly achieve the purpose of fine particle control, which is suitable for users in various industries with fine-grained needs.

4) Steam jet mill, a model that replaces air compressors, saves energy and reduces consumption, and promotes flow. Application: Special industries such as fly ash, slag, barium sulfate, talcum powder, white carbon black, aerogel, etc.

3. Secondly, it is necessary to clearly distinguish the fineness that each model of the Chinese medicine jet mill can achieve.

1) Disc jet mill, 200 mesh-5μm, with the increase of particle size, the production capacity is gradually reduced.

2) Fluidized bed vertical jet mill, 200 mesh -3μm, with the increase of particle size, the production capacity is gradually reduced.

3) Fluidized bed horizontal jet mill, 200 mesh-1 micron. With the increase of particle size, the production capacity is gradually reduced.

4) Steam jet mill, 200 mesh -0.5 microns, with the increase of particle size, the production capacity is gradually reduced.

But generally below 500 mesh, it is recommended to use a mechanical crusher, the main consideration is that its production cost is acceptable. The energy consumption of jet mills is relatively high, but industries with high added value can be ignored.

4. In addition, the selection is based on the characteristics of the raw materials, such as the viscosity, toughness, fluidity, ductility, hygroscopicity, easy oxidation, combustion and explosion of the material, etc., which will affect the selection. Communicate in detail with professional and technical personnel and listen to their suggestions.

5. The traditional Chinese medicine jet mill, especially the fluidized bed type, has different subdivisions of the grading impeller. It will also have an impact on the particle size, output and particle shape. When choosing, usually negotiate and communicate with the manufacturing company.