Small sand making machine

Small sand making machine, also known as impact sand making machine, mainly consists of hammer head, rotor, main shaft, lining plate, frame, etc. It is a new and efficient fine crushing and coarse grinding equipment with the advantages of high crushing ratio, small discharge particle size, and uniform particle size. It can be applied to the crushing of other medium hard ores such as iron ore, sandstone, gypsum, blast furnace slag, coal gangue, and lump coal. It is one of the commonly used equipment in crushing and sand production lines. The small sand making machine produced by Gongyi Tengda Machinery Factory has multiple advantages, including simplified process, simple structure, transformation from three-stage crushing to two-stage crushing, production capacity of 1-50T/h, feeding particle size ≤ 350mm, long hammer life (over 40000 tons), low supporting power, easy maintenance, and stable operation.

1. The crushing ratio of this machine is large, and the maximum crushing ratio can reach the discharge particle size that can be adjusted arbitrarily, without being affected by the wear of the plate hammer and lining plate.
2. No screening strip setting, it is not easy to block when crushing materials with high moisture content and high mud content.
3. Adopting an elastic adjustment mechanism, the unbreakable material can be automatically discharged without causing equipment damage.
4. Horizontal arrangement of bearings, long service life, capable of crushing high-temperature materials (such as cement clinker).
5. The rotor structure of this machine is unique, and it hardly wears out when crushing materials.
6. The rear chamber is equipped with a screw or hydraulic opening mechanism, making it easy to replace vulnerable parts without starting the main equipment.

When a small sand making machine is in operation, the material enters the machine from the feeding hopper and is divided into two parts by the distributor. One part enters the high-speed rotating impeller in the middle of the distributor and is rapidly accelerated inside the impeller, with an acceleration of hundreds of times that of gravity. Then, it is ejected from the three evenly distributed flow channels of the impeller at a speed of 60-70 meters per second. Firstly, it is crushed by the impact of a part of the material collected from around the distributor, and then it hits the material lining in the vortex support chamber together. The material lining rebounds and diagonally impacts the top of the vortex chamber, changing its direction of motion and deflects downwards. The material emitted from the impeller flow channel forms a continuous material curtain. Such a piece of material is subject to two or more probability impacts, friction, and grinding crushing effects in the vortex crushing chamber. The crushed material is discharged from the lower discharge outlet. During the entire crushing process, the materials collide and crush on their own without direct contact with the metal components. Instead, they collide and rub against the material lining, resulting in crushing. This reduces angular pollution and prolongs mechanical wear time. The clever self circulation of airflow inside the vortex chamber eliminates dust pollution.

Working characteristics of small sand making machine:
1. Simple and reasonable structure, low operating cost. By utilizing the principle of stone to stone, there is minimal wear and tear.
2. High crushing rate and energy-saving.
3. It has the functions of fine and coarse grinding.
4. Less affected by the moisture content of the material, with a moisture content of up to 8%.
5. The working noise is below 75 decibels (dB level), and there is less dust pollution.
6. Suitable for crushing medium hard and extra hard materials.
7. The product is cubic in shape, with a high packing density and minimal iron pollution.
8. The self lining of the impeller has minimal wear and is easy to maintain.