What is a vertical shaft impact crusher？

Vertical shaft impact crusher, also known as sand making machine, is a highly efficient stone crushing equipment. The following is a detailed introduction to it:

1. Working principle
   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, and then it is ejected from the three evenly distributed flow channels of the impeller at a speed of 60~70 m/s.
   The material is first impacted and crushed with a part of the material that falls from the surrounding of the distributor, and then 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, and then changes its direction of movement, deflects and moves downward, and the material emitted from the impeller flow channel forms a continuous material curtain.
   The material is subjected to two or more probability impacts, friction and grinding and crushing in the vortex crushing cavity, and finally completes the crushing process.

1. Structural features
   The vertical shaft impact crusher consists of multiple parts such as a feed hopper, a distributor, and a vortex crushing chamber. The structure is relatively simple but reasonable.
   The central vertical shaft is driven by a belt to make the flat parts equipped with a vertical guide device roll, thereby achieving the crushing of the material.
2. Performance characteristics
   High crushing efficiency: It has fine crushing and coarse grinding functions, high crushing efficiency, and excellent product particle shape, which is cubic and has a very low needle-like content.
   Simple structure: easy installation and maintenance, low operating cost.
   Strong adaptability: It is less affected by the moisture content of the material, and the moisture content can reach about 8%. At the same time, it has a strong ability to pass non-crushed materials.
   Energy saving and environmental protection: The ingenious airflow self-circulation inside the vortex chamber eliminates dust pollution, while running smoothly, working with low noise, and high efficiency and energy saving.

1. Application field
   The vertical shaft impact crusher is widely used in the medium and fine crushing (sand making) of various hard and brittle materials such as various rocks, abrasives, refractory materials, cement clinker, quartz stone, iron ore, concrete aggregates, etc., especially for construction sand and road sand and gravel. It is also widely used in industries such as hydropower, highways, construction, cement, and metal mines.

In summary, the vertical shaft impact crusher is an efficient, energy-saving, and environmentally friendly stone crushing equipment with broad application prospects and market value.