Airflow milling because the temperature does not rise, it is very low, the production cycle is also very short, the registration rate is also very high, the distribution of particles is uniform, and the gas flow grinding is gradually become pharmaceutical. In the process, the assistant is effective, according to a certain understanding, when the temperature of the work quality is constantly elevated, the flow rate of the gas will drive the speed of the flow rate, mainly in air as an example.
In recent years, with the development of modern industries, ultra-fine ultra-microfocious technology has received more and more attention, especially the quality of the pharmaceutical, chemical industry, and raw materials directly affect the next process. . The airflow pulverizer is the leader in the current ultra-fine ultrafine pulverized equipment, especially the disc (spiral) airflow pulverizer is more simple and easy to disassemble, the crushing effect is high, and most of the reproducibility is mostly It is the favor of pharmaceutical and chemical enterprises; it has become a typical equipment for pulverizing high purity, low fine product.
The airflow pulverizer requires a complete set of process systems, how to exert its function, reduce loss is also a crucial problem.
Airflow pulverizer, as the name implies need to be filtered, dry compressed air with animal material to rub the collision, thereby achieving a crushing effect; 80% of the electric energy consumption in the discs, 80% of electric energy consumption section. So how to make full use of compressed air, in fact, it is a largest saving energy. How to adjust the airflow pulverizer so that it operates under the ideal conditions to increase the pulverization efficiency of the gas flow pulverizer, which is the concern of many user manufacturers.
Adjustment of the feed speed
The feed speed determines the time that the material collies with each other in the pulverizing chamber. The feed speed is slow, the material is long, the number of particles, the particle cycle is more, and the pulverization is smaller; but too too slow, the number of particles in the pulverized cavity is too small, resulting in less collision It is not possible to achieve the desired effect. The feed is too fast, and there is too much in the pulverized cavity, and the pulverization fineness is even more than half.
The experiment proves that the feed is uniform, and it is guaranteed to ensure that the pulverizing cavity is stable, and the feed speed is adjusted to reach the gas ratio in the pulverized cavity to the material particles, and Zui is more effective. The number of times thereby increasing the usage of the pulverizer.
Change the classification circle or divisionClass wheel speed
The grading loop of discs is self-contained, and it is not easy to easily and simple, and different materials have different properties like fluidized beds (graded) airflow mills, and different materials have different properties. The fact that the material crushing effect does not achieve consistent, and a lot of experimental experience can be obtained.
Due to the rotation of the grading wheel, the inner rotation field in the pulverized chamber is stabilized, and the material is smashed, and the thicker material is always unable to pass the graded wheel, and can only return to the pulverizing chamber to continue pulverizing. Larger pulverization efficiency is achieved under the action of high-speed airflow, and the fluidized bed gas flow pulverizer also has a certain advantage.
The reasonable design of the pulverized nozzle
The shape of the nozzle is the key to reducing energy at the nozzle, and the compressed air produces different velocity airflows. The nozzle design, improper processing, which directly leads to the high rate of pulverization and the nozzle wear, and the nozzle after the wear is derived, resulting in a part of the gas stream to be invalidable to affect the pulverization efficiency.
Other factors
There are other factors that can not be underestimated, for example, the hardness of the material that needs to be pulverized is definitely more serious to the pulverizing cavity of the pulverizer. At this time, we need to replace the ultra-hard lines. For example, ceramic corundum is greatly reduced to reduce the wear of the pulverized chamber and improve the purity of the recovery.
In addition, in the pharmaceutical, chemical industry often contacts materials that are easily adhered to moisture, electrostatic electricity, and the material is attached to the pulverizing cavity, discharge opening, and collector, affecting the progress of the entire process. So at this time, I need to replace the special anti-stick inner liner in the pulverization cavity, sprayed or inner liner, anti-stick, lining; as much as possible, the pipeline length, the contact area of the material, improve material Yield. Treating static materials also requires effective in addition to static electrostatic equipment.
With the potential of intensive, maintenance, excavation of the gas flow crusher, using a larger efficiency in the case of ensuring the particle size indicator, there is a great significance of saving energy and reducing costs.
In the past context of economic globalization, more and more foreign exchanges have become an inevitable trend in all walks of life. For AlPa powder, this communication is not only promoted. The exchange of information, and accelerated the pace of ALPA powder into internationalization.
