The material enters the sand making machine by the feed hopper, and the material is divided into two parts by the distributor, and one part enters the high-speed rotating impeller by the middle of the distributor, and is rapidly accelerated in the impeller, and its acceleration can reach hundreds of times the gravitational acceleration, and then at a speed of 60-70 m/s from the three evenly distributed runners of the impeller are thrown out, first with a part of the material that falls from the self-collection around the distributor is impacted and broken, and then impacts to the material lining layer in the vortex chamber together, which is rebounded by the material lining and obliquely impacts upwards to the top of the vortex chamber. It also changes its direction of motion, deflects to downward motion, and the material emitted from the impeller channel forms a continuous material curtain. Such a piece of material is subjected to two or more chance of impact, friction and grinding in the vortex crushing chamber. The crushed material is discharged from the lower discharge port. In the whole crushing process, the materials are crushed by their own impact on each other, not in direct contact with the metal components, but with the material lining impact, friction and crushing, which reduces the angle pollution and prolongs the mechanical wear time. The ingenious self-circulation of the air flow inside the vortex chamber eliminates dust pollution.
The material falls into the feed hopper, enters the high-speed rotating rotor through the central feed hole, is fully accelerated and thrown out through the launch port, first collides with a part of the material that falls freely after the rebound, and then impacts the vortex material lining (or on the counterattack block) in the surrounding vortex cavity together, is first rebounded to the top of the crushing chamber, and then deflects to move downward, and the material emitted from the impeller flow channel collides to form a continuous material curtain, and finally discharges through the lower discharge port.
The new type of sand making machine adopts a diamond-shaped combined impact block (throwing head) instead of the original integral hammer head and square combined impact block. The impact block alloy is "hard but not brittle, tough and strong", and has good high temperature resistance. The impact block is directly forged with imported high-quality alloy, wear resistance and toughness, which is at the leading level in China, which greatly improves the work efficiency, and the service life is 3-5 times higher than that of high manganese steel, and improves the production output and quality.
The latest 5X sand making machine has adopted diamond-shaped combined impact block, the main feature of this kind of impact block is to use foreign high-quality alloy instead of domestic traditional manganese steel and casting alloy parts, thereby greatly improving the wear resistance of the impact block and the crushing capacity of the sand making machine. The diamond-shaped combination of impact blocks can be used in turn while improving their own wear resistance, which not only improves the utilization rate of materials, but also effectively protects the life of the inner perimeter guard plate of the sand making machine. The overall service life of the sand making machine is more than five times longer than that of the original product. The sand making efficiency is increased by more than 30%.
