In recent years, with the strict implementation of China's river sand mining policy, China's high-quality river sand resources have become increasingly scarce, and even inferior products such as sea sand have appeared, which has a great impact on the quality of concrete and cement, resulting in the continuous rise of sand and gravel. In addition, the country's requirements for environmental protection are getting higher and higher. Due to backward production technology, coupled with dust, noise and other problems, many placer mining enterprises have shut down. There is a shortage of concrete raw materials. However, the advent of the sand making machine just solves the problem of shortage of natural sand resources, and ensures the supply of cement raw materials, thereby improving the quality of China's construction projects. How do our grinders work?
At present, most of the new sand making machines are the combination of hydraulic transmission and automatic stone unloading stone stone process, which is based on the traditional sand making theory, and combined with the user's on-site application and operating conditions to transform it, which is very in line with China's sand making market.
After starting the work, the material to be crushed is fed into the crushing chamber from the feed port, and it is divided into two parts by this feeder, one part enters the high-speed rotating impeller, which is pushed to quickly accelerate the movement, and then sprays outward at a rate of 60 70 m s from the three evenly distributed flow channels of the impeller, first collides with the free-falling material in the feeder, and crushes it.
On this basis, this project proposes a new idea: firstly, in the turbulent flow near the turbulent boundary, a collision occurs near the turbulent boundary and strikes downward at a certain angle, and together with the material ejected from the wave wheel channel, a material curtain is formed. In this way, each material undergoes at least two or more collisions, frictions and grinding actions in the grinding chamber before it can be crushed and crushed to the right size before being unloaded onto the sand making machine by the discharge port below.