The spiral conveyor is divided into two kinds: axial screw conveyor and non-axial screw conveyor, which are divided into u-type screw conveyor and tube type screw conveyor. The axial screw conveyor is suitable for non-stick dry powder materials; And no axial screw conveyor suitable for sticky and easy winding materials.
Working principle:
When the screw axis rotation, due to the gravity of the material and the tank wall solutions generated by friction, make the material only under the push of blade groove bottom along the conveyor moving forward, the situation can't seem to rotate the nut along the rotation of the screw for translational motion. The movement of the material in the middle bearing is the thrust of the material that is moving forward. Therefore, the transport of materials in the conveyor is completely a sliding motion. In order to keep the spiral shaft in a favorable tensile condition, the driving device and unloading port are generally placed on the same end of the conveyor, while the feeding mouth is placed near the rear end of the other end. The rotating spiral blade is transported by the material, so that the force of the material not rotating with the blade of the spiral conveyor is the friction resistance of the material's weight and the screw conveyor casing to the material. The face type of the blade has the type of solid surface, belt type, blade face type according to the different conveying materials. The spiral shaft of the screw conveyor has a thrust bearing at the end of the material movement direction to the axial force of the screw with the material. When the captain is longer, he should hang the bearing in the middle.
