Since the 1980s, with the development of the national economy, more and more industries need to dry ultra-fine powder mills, Fluidized Bed Jet Mill of VNF is the most effective One of the equipment. In China, after 20 years of development, the Fluidized Bed Jet Mill of VNF industry has been widely used in pesticides, food, medicine, fine chemical, electronic battery materials and other fields.
Fluidized BED JET MILL OF VNF is powered by the adiabatic expansion of the compressed air and the compressed gas at the nozzle. The temperature of the system will be reduced. The material is inhaled in the mixing chamber by a negative pressure generated by the high-speed jet of the feed injector. The nozzle is injected into the pulverizing chamber in a certain angle by pulverizing jet in the radius of the pulverization chamber and is distributed over the same level. The jet flow is rotated with the material with a very high speed, and fluid dynamic characteristics are formed on the radius of the pulverization chamber. Material particles collide with huge momentum. Material As the high-speed movement of the airflow, a serious impact, friction and shear, resulting in the wear and wear of the grinding cavity, causing certain pollution to the product. In this apparatus, the treated material is blown at a speed of 20 m / s, and collides with other high speed materials. Due to the high speed flow of the airflow and the high impact strength of the material, the crushing efficiency is very high. At the same time, during the movement of the machine gun, the inner spiral cyclone and outer spiral void. The limit is aggregated to the axis of motion to reduce friction with the tube wall and reduce metal wear to minimize. The air pulverizer has an upward nozzle under the bottom of the pulverized chamber tape, and the material that falls into the pulverized chamber can also be smashed, eliminated by a high-speed air flow entrained by the nozzle in time. The blind zone of the cone under the broken chamber is irregular in the entire simplified body. Scroll, make the ball media and materials have the double effects of collision and grinding, resulting in fine grinding, uniform dispersion.Ultrafine Fluidized Bed Jet Mill of VNF Working Principle: The ultrafine pulverizer is fed into the pulverization chamber between the body and the guide circle, rotating in the comminuted indoor. Under the blade impact, the material is attached to the gel fixed to the body, resulting in impact, shearing, and material, the material and the blade, the mutual collision, friction, and shear inter alternate. After the powder, under the tension of the negative pressure airflow, the small powder grains overcome self-weight, the over the guide circle with the gas flow, and enter the grading chamber. The fractionation impeller consists of the blade, and the high-speed rotating blade produces a centrifugal force opposite to the negative pressure, and the powder particles in the leaf can be subjected to a negative pressure gas stream and the granularity of the granules, the centrifugal force generated by the impeller, and the particles are larger than the critical diameter ( The granular particles of the grading particles are large, and the pulverized chamber continues to be pulverized, and the particles smaller than the critical diameter are discharged through the drain tube into the whirlwind collector. Grading impellerThe higher the rotation speed, the finer the graded particles, and the rotation of the orthogonal impeller is to control the determinants of the particle size.
Operation of Fluidized BED JET MILL OF VNF What should be paid to the operation, the operator needs to confirm whether the raw material feed tube entrance and exit have foreign matter. Whether there is any raw material at the exit. If the foreign matter is found to handle a clean and then boot.
When the grading machine is operating normally, in order to maintain the stability of the grading, the pressure of the supply tube compressed gas is required to be monitored. Check if the dust collector pressure loss of the laboratory classifier is stable. Decompose, cleaning, inspected, and maintaining the laboratory classifier must be disconnected to avoid danger.
Alpa Xiashi powder Fluidized BED JET MILL OF VNF Experiment: A mining company needs to select a powder to Xia Shi powder. Through the experiment of our ALPA can do product particle size: D90: 16.8μm, Yield: 246kg / h 加 加 量
ALPA design produced Fluidized Bed Jet Mill of VNF devices got a very good reputation in actual production applications, and also won the praise of users and friends. If you need to buy Fluidized Bed Jet Mill of VNF, please feel free to contact us.
