When the stone goes to the rice destoner to work normal […]
When the stone goes to the rice destoner to work normally, it is required that the updraft speed of the material layer penetrates the wheat's suspension speed. If the air flow velocity is too high, the material on the trend screen surface is easily blown through, the air flow distribution is uneven, and the automatic classification of the material is destroyed, so that the separation efficiency is reduced. If the airflow speed is too low, wheat cannot be suspended, and it is easy to climb together with the stones, causing the stone to contain wheat. At the same time, the automatic classification of materials is poor, and wheat seeds also contain stones, which also reduces the separation efficiency.
1. Inclination: The angle between the screen surface and the horizontal plane becomes a dip angle. The size of the dip has an impact on the output and stone removal efficiency of the rice destoner and the impact on the two is contradictory. When the inclination is large, the decline of the wheat flow is strong. However, the trend efficiency will be reduced. When the inclination angle is small, the flow rate of wheat is low and the yield is small. At the same time, the stone is easy to bring wheat, so that the lower foot contains more grain. The declining angle of the rice destoner is generally 5-9.
2. Throw angle: The throw angle refers to the angle between the screen body vibration direction and the screen surface. The form of the rice destoner screen body vibration is reciprocating linear vibration, the vibration direction is inclined, and is perpendicular to the axis of the vibration motor, and the rice is removed from the stone machine. The vibration direction is different from that of the vibrating screen and cannot be arbitrarily changed. This is the basic condition for the side-by-side shoulder stone that follows the screen surface to run along the screen surface. Therefore, choosing a suitable throwing angle is beneficial to the automatic classification of materials and the ascending of shoulder stones. However, when the angle is too large, the material can easily jump off the screen surface, which is not conducive to the ascending of the shoulder stone. Generally, the throw angle of the rice destoner is 30-35.