Main factors affecting the normal operation of the stone removal machine

     When the rice stone-removing machine is working normally, the rising air velocity required to penetrate the bed is equivalent to the suspension velocity of wheat. If the air flow speed is too large, the materials on the trend screen surface are easily blown through, the air flow is unevenly distributed, which destroys the automatic classification of the materials and reduces the separation efficiency. If the air velocity is too small, the wheat is unable to levitate, and it is easy to climb up with the stone, causing the stone to contain wheat. At the same time, the materials are automatically graded poorly, and the wheat species also easily contain stones, which also reduces the separation efficiency.

      1. Inclination angle: the angle between the stone-removing screen surface and the horizontal plane becomes the inclination angle. The size of the inclination has an impact on the output of the rice stone removal machine and the efficiency of stone removal, and the effects on the two are contradictory. When the inclination angle is large, it is powerful to the decline of wheat flow. However, the trend efficiency will be reduced. When the inclination angle is small, the wheat flow rate is low and the yield is small. At the same time, it is easy to carry wheat in the stone, which increases the grain content of the feet. The inclination of the rice stone removal machine is generally 5-9.

      2. Throwing angle: The throwing angle refers to the angle between the vibration direction of the sieve body and the screen surface. The form of the vibration of the sieve body of the rice stone removing machine is a reciprocating linear vibration. The vibration direction is different from the vibrating screen and cannot be changed at will. This is the basic condition for the side-by-side stones close to the screen surface to travel along the screen surface. Therefore, choosing an appropriate throwing angle is conducive to automatic grading of materials and upward movement of side-by-side stones. However, when the throwing angle is too large, the material tends to jump away from the screen surface, but it is not conducive to the upward movement of side by side stones. The throwing angle of the rice stone removal machine is generally 30-35.

      3. Amplitude and vibration frequency: Amplitude refers to the amplitude of the sieve body vibration, and the vibration frequency makes it a working parameter that indicates the speed of the sieve body vibration. When the amplitude is large and the frequency is high, the material moves faster on the screen surface, and the automatic classification function is stronger. Conducive to the improvement of separation efficiency and equipment output. However, the amplitude is too large, the frequency is too high, the working surface vibrates violently, the material is prone to jump, and the automatic classification of the material is destroyed. Therefore, the separation efficiency is reduced. On the contrary, the slow movement of the material on the screen surface and the thickening of the material layer are also not conducive to the automatic classification of the material. Not only affects the separation efficiency, but also affects the output of rice stone removal machine. The amplitude of the rice stone removal machine is generally about 3.5-5mm. The frequency of the rice stone removal machine driven by the vibration motor is generally not adjusted, and the frequency of the eccentric rotation of the rice stone removal machine is positively related to its speed.