How much is the investment for small sand making machine, small sand making machine factory and small sand making yard
Small sand making machine refers to the small sand making machine with an hourly output of 50-80T or less, which is used for hard materials, as well as for fine and ultra fine crushing of artificial sand making, pre grinding cement, mining, refractory and other industries with a large difference in material performance, such as granite, basalt, limestone, quartz, gneiss, cement clinker, concrete aggregate, ceramic raw materials, iron ore, gold ore, copper ore, corundum, bauxite, silica, etc. The materials vertically fall into the high-speed rotating impeller from the upper part of the machine. Under the action of high-speed centrifugal force, the materials distributed around the impeller in the form of an umbrella with the other part produce high-speed impact and crushing. After the materials collide with each other, the materials will form eddy currents between the impeller and the casing for multiple times of mutual impact, friction and crushing. The materials will be discharged directly from the lower part, forming a closed circuit for multiple cycles, It is controlled by screening equipment to reach the required particle size of finished products.
Structure of small sand making machine:
According to the structure of rotor, small sand making machine can be divided into open rotor structure and closed rotor structure. The closed rotor structure is the cage layout of the rotor. After the material falls into the closed rotor from the top, it is thrown out at high speed. Open rotor structure means that the rotor is in an open structure, and materials fall into the rotor and are knocked out by the throwing hammer. The working principle of impact crusher is simply the principle of stone beating. Let the stones collide with the stones thrown out by the impeller in the process of natural fall, so as to achieve the goal of breaking! When the accelerated stones collide with the naturally falling stones, a vortex is formed, and the stones are broken twice during the return process, so there is little wear on the impact plate of the machine during operation!
The performance of small sand making machine is better:
1. The operation performance of the equipment is stable and reliable, the process is simple, the structure is simple, reasonable and compact, and it is easy to replace parts and maintain;
2. Simple maintenance and convenient movement;
3. Change the three-stage crushing into two-stage crushing, with large production capacity, long service life of hammers, environmental protection and energy conservation, which is widely applicable to granite, basalt, cement clinker, quartz stone, emery, ore, iron ore, bauxite and other raw materials, especially the fine crushing of river pebbles, overcoming the disadvantage that traditional sand making equipment is only applicable to soft rock (150MPa) raw materials.
4. It can be used widely to produce sand and stone;
5. Unique structure, unique high chromium plate hammer, unique impact liner hard rock crushing, unique inertial impact balancing device, unique simple disassembly and maintenance window;
Working principle of small 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. The acceleration can reach hundreds of times of the gravity acceleration, and then it is ejected from the three uniformly distributed flow channels of the impeller at the speed of 60-70 meters/second. First, it is crushed by the impact of a part of the material collected around the distributor, Then it impacts on the material lining in the vortex branch chamber together, bounces back by the material lining, impacts the top of the vortex chamber obliquely upwards, changes its movement direction, deflects downward, and the materials emitted from the impeller flow channel form a continuous material curtain. Such a piece of material is impacted, rubbed and ground in the whirling crushing chamber twice or even several times. The crushed materials are discharged from the lower discharge port. In the whole crushing process, the materials will impact and crush each other by themselves, not directly contacting with the metal components, but impact and friction with the material lining, which will reduce the angle pollution and prolong the mechanical wear time. The ingenious air circulation inside the whirling chamber eliminates dust pollution.