Mobile VSI Sand Making Plant

The working principle of the Mobile VSI Sand Making Plant is the same as that of the Vertical Shaft Impact Sand Making Machine. The material enters the sand making machine from the feed hopper and is divided into two parts by the distributor. One part enters the high-speed rotating impeller from the middle of the distributor and is rapidly accelerated in the impeller. Its acceleration can reach hundreds of times the acceleration of gravity. Then, it is ejected from the three evenly distributed flow channels of the impeller at a speed of 60-70 m/s. First, it is impacted and crushed by a part of the material that falls from the distributor's surroundings. Then, it impacts the material lining in the vortex branch cavity together, is rebounded by the material lining, and impacts obliquely upward to the top of the vortex cavity. Then, it changes its direction of movement and deflects downward. The material emitted from the impeller flow channel forms a continuous material curtain. In this way, a piece of material is subjected to two or more collisions, friction grinding, and crushing in the vortex crushing cavity. The crushed material is discharged from the lower discharge port. It forms a closed circuit with the circulating screening system. Generally, three cycles can crush the material into less than 20 mesh.

During the whole crushing process, the materials impact and crush each other without direct contact with metal components but impact and rub against the material lining to crush, which reduces corner pollution and prolongs the mechanical wear time. The ingenious airflow self-circulation inside the vortex cavity eliminates dust pollution.