According to the different requirements and structure of the conveyer material, the screw conveyer has a horizontal Screw Conveyor, a vertical screw conveyor, a curved screw conveyor and a spiral pipe conveyor. (1) vertical screw conveyor The rotating speed of the spiral body of the vertical screw conveyer is higher than that of the ordinary screw conveyor. The friction force between the material and the casing is produced under the action of the centrifugal force. The friction force prevents the material from rotating with the spiral blade and overcomes the gravity of the material falling, thus realizing the vertical transport of the material. The machine has the advantages of small conveying capacity, small conveying height, high rotational speed and large energy consumption. It is especially suitable for conveying granular materials with good fluidity. It is mainly used for lifting materials, and the lifting height is generally not more than 8 meters. (2) horizontal screw conveyor When the material is added to a fixed slot, the material that is accumulated in the lower part of the machine does not rotate with the helix due to the gravity of the material and the friction between the machine slot, but it moves forward only in the rotating spiral blade, as if the non rotating nut is moving along the rotating screw, so as to deliver the material. Objective. The machine is easy to load and discharge at multiple points, and can be mixed, stirred or cooled at the same time. It is sensitive to overloading, easy to block, and has broken loss to materials. The structure of horizontal screw conveyor is simple, easy to install and maintain, and troubleshooting. It is suitable for continuous and uniform conveying of loose materials at level or slightly tilted (20º below). The working environment temperature is -20-+40 C, and the conveying material temperature is -20-+80 C. Its speed is lower than that of vertical conveyor, mainly used for conveying materials at horizontal or small inclination angles, and the conveying distance is generally not more than 70 meters. (3) screw conveyor (roller conveyor) conveyer
The spiral pipe conveyer is welded with a continuous spiral blade in the cylindrical casing, and the casing and the spiral blade rotate together. The material of the added material rotates together with the effect of centrifugal force and friction force to rotate together and is promoted, and the material falls along the spiral surface under the gravity action of the material, so that the material is rotated with the spiral tube so as to realize the forward movement of the material, as the non rotating screw is moving along the rotating stud to reach the conveyer. The purpose of the material.
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