The driving device is composed of a closed trough box and a screw, and the coal in the trough box is pushed out by the spiral rotation.

The characteristics of the screw conveyor of the conveyor manufacturer are: simple structure, small cross-sectional size, good sealing, reliable work, low manufacturing cost, convenient for intermediate loading and unloading, reversible conveying direction, and simultaneous conveying in opposite directions. During the conveying process, the materials can also be stirred, mixed, heated and cooled. The material flow can be adjusted through the loading and unloading gate. However, it is not suitable to transport materials that are perishable, viscous, agglomerated and bulky. During the conveying process, the material is easy to be broken, and the screw and the trough are easy to wear. The unit power is larger. During use, keep the sealing of the trough and proper clearance between the spiral and the trough.

The vertical screw conveyor is suitable for short-distance vertical conveying. The spiral of the bendable screw conveyor is composed of a flexible shaft and synthetic rubber blades. It is easy to bend and can be arranged arbitrarily according to the site or process requirements for spatial transportation. Screw conveyor blades have current pull type and full pull loss. The current pull type can be made into any thickness and specification size. The full pull type is not suitable for making non-standard spirals.

From the perspective of the displacement direction of the conveying materials, screw conveyors are divided into two types: horizontal screw conveyors and vertical screw conveyors. They are mainly used for horizontal conveying of various powder, granular, and small pieces of loose materials. And vertical lifting, the screw conveyor is not suitable for conveying special materials that are easy to deteriorate, high viscosity, easy to agglomerate or high temperature, afraid of pressure, and relatively corrosive.

The screw conveyor is generally composed of three parts: the conveyor body, the inlet and outlet and the driving device; the spiral blade of the screw conveyor has three forms: solid spiral surface, belt spiral surface and blade spiral surface. Among them, the blade spiral surface is used Relatively few, it is mainly used to transport materials with high viscosity and compressibility. This type of spiral suspension surface has and completes the functions of stirring and mixing materials at the same time during the completion of the transportation operation.

Compared with other conveying equipment, the screw conveyor has the advantages of small cross-sectional area, good sealing performance, stable and reliable operation, multi-point loading and unloading, safe operation and convenient maintenance.