During the operation of the ultra -micro airflow crusher, the grinding cavity is not an ideal average rotation field. Due to the gradual wear of the lining, the local bumps are produced, or due to uneven feed, there are many local vortex areas. The existence of these vortex regions interferes with the balance of the airflow in the cavity and cause energy loss.
The shape of the nozzle is the key to reducing the loss of energy at the nozzle. The nozzle of the air can generate high -speed airflows of different speeds by different shapes. The nozzle design is improper, either the supersonic airflow that cannot produce enough speed, or it is quickly worn. The split nozzle causes the airflow to be sloppy, so that some energy in the pressure of the air is used to do useless work, and the fineness and yield of the product are affected. Practice has proved that in order to obtain a good crushing effect, you must use the supersonic spray. Compared with ordinary ultra -micro airflow crusher, the airflow crusher can crush the product more thinner, the granularity distribution range is narrow, and the particle size is more uniform. Therefore, the airflow crusher can be applied to the crushing of various materials. Under normal circumstances, the fineness of the air flow fragments will be affected by factors such as air volume, rotation speed of grading wheels, feeding amount, and the degree of wear of loss. Essence When the fineness is too thick: If the weight is the maximum, reduce the amount of feeding first, and then increase the frequency of the hierarchical wheel; Repeated adjustments, finding and reaching the fineness requirements are the best output control point. When the fineness is too fine: first increase the air volume, if the air volume is the maximum, reduce the frequency of the hierarchical wheels to increase the amount of feeding after the current decreases. Repeated adjustments, finding and reaching the fineness requirements are the best output control point. If the airflow crusher produces low -grade feed, the fineness requirements are not high. When the output is only pursuing the output, the air volume is opened to the maximum, reducing the frequency of the hierarchical wheel and increasing the amount of feeding. At a certain moment, some large particles that have not been crushed to the specified fineness may be close to the middle of the stream field. Due to the airflow effect, it overflows it on the side of the impeller and enters the product side. The average particle size increases, reducing the quality of the product, especially when the abrasive cavity is relatively large or the feeding is uneven, this impact is greater. After adding the built -in hierarchical impeller, due to the high -speed operation of the impeller, the internal rotation field is stabilized, so that the unin -crushed large particles are always stabilized in the crushing area. Under the influence of high -speed airflow, an effective collision opportunity is enhanced and the crushing efficiency is improved. Adjusting the feed speed determines the stay time of the material in the grinding cavity. If the feeding speed is low, the stay time is long, the number of particles cycle increases, and the crushing fineness is small. However, the feeding speed is low, the number of particles in the unit volume is small, the chance of collision between particles will decrease, and the crushing particle size will be large; the feeding speed is too short, which is too short, which is not good for crushing.