About the method and characteristics of super fine crushing Chinese medicine

Mechanical crushing

The principle of mechanical crushing is a blade (or hammer) that is active on the impeller of the motor high -speed rotating impeller. This is a crushing of impact as the main body. Generally, the Chinese medicine machinery factory has this equipment, and the fineness of this equipment can be 80 meters. The crushing fineness adjustment is controlled by the inner cavity of the device. Due to high -speed mechanical collisions when crushing, the crushing cavity must be cooled.

But at the moment of the blade (or hammer) and the crushing, the crushing temperature is still very high, up to 100 ~ 250 ° C. This may have some losses to the nutritional ingredients of plants. For animal fat or glue, it will cause sticky walls, blocking and crushing into the road without crushing.

Vibration grinding powder

Vibration grinding, ball mill and planetal grinding belong to similar crushing equipment, which can be used for ultra -fine crushing of Chinese medicine. At present, more promotion of the market is vibration grinding. The working principle of the vibration grinding is to put the crushed Chinese herbal medicine and grinding as: ceramic or metal balls, cylindrical rods, etc. are installed in the grinding cylinder supported by the spring, and the spoil barrel is driven by the eccentric block to make a circular vibration. Through the high -frequency vibration of grinding, it is crushed on Chinese herbal medicines to impact, friction, cutting and other effects.

Motor's motion acceleration R \u0026 Omega; 2 (R is the radius of the mill, \u0026 omega; is the vibration angle speed) is generally greater than the ball mill, which can be effectively crushed. The fineness of the powder can be regulated and controlled by motion acceleration R \u0026 Omega; 2. Vibration time or grinding agency and material ratio. The vibration grinding can also be combined with the frozen crushing. For the lower -temperature media, the lower temperature medium is controlled to control the temperature to the super fine crushing below the zero degrees Celsius. The crushing fineness is between 1 ~ 40 \u0026 mu; M.

The airflow crusher and classification

The fundamental difference between the crushing of the air flow and the above shattering is to impact the crushing the crushed by high -speed airflow. The previous introductions are mechanical crushing. In general airflow crushing equipment, the airflow with 0.8 ～ 1.0MPa static pressure through a special nozzle is transformed into high -speed fluids with 2 to 3 times supersonic kinetic energy. Causes the crushed material to crush each other. The maximum crushing speed of mechanical crushing is 1 to 5 meters/s, and the crushing speed of the crushing of air flow can reach 300 to 500 meters/s, which are tens to hundreds of times of mechanical crushing. But the crushing process is relatively complicated.

In addition to the crushing of high -speed airflow, it also requires facilities such as grading, gas/solidarity separation, which are shown in the figure below. After the Chinese herbal medicine is crushed through the air flow, it enters the classification device. After the rough material is classified, the crusher reaches the required fine powder to enter the air/solid separation equipment, collect the finished product, and the clean air is discharged at the atmosphere.123]