At this stage, with the increasing amount of sand used in construction, the machine-made sand industry is gradually emerging, and the entire construction machinery industry is encouraged to research and improve the technology and process of heavy mineral processing equipment. Sand production line as an important part of the sand making machine, the stability and durability of its components seem to play a decisive role in today's Shanhaiguan Sand for everyone to bring the impeller to explain the relevant knowledge. Impeller is an important part of the sand making machine, but also the most vulnerable part of the material in the impeller to complete the distribution of launch, if not properly handled, it is easy to wear material impeller, so we should be careful in the specific work and operation , To prevent because of carelessness, accidentally trigger a series of production accidents. We know that the impeller is mounted on the upper shaft head of the spindle assembly, and the torque is transmitted by the conical sleeve and the key to rotate at a high speed. The material enters the center of the impeller through the center feed tube of the upper part of the impeller. The center of the impeller cloth vertebral body evenly distributed to the material of the impeller launch lanes, the launch of the runner exit, the installation of special materials made of wear-resistant blocks, can be replaced. The impeller will speed up the material to a certain speed and projectile, impact to the vortex crushing cavity material lining, strong self-smashing, in the impeller cap and wear blocks with upper and lower flow channel plate, thus protecting it Not subject to wear and tear. It should be noted that before stopping the operation of the equipment, it is necessary to stop the feeding before stopping the discharging equipment, and the feeding should be continued uniformly. The specifications of the materials should be strictly complied with the requirements, otherwise the materials may easily wear down the impeller.