Technical characteristics of various types of screw conveyors

2014-09-23 09:16:22 Compared with other conveying equipment, 　　 screw loading conveyor has the advantages of small cross-sectional size, good sealing performance, stable and reliable operation, multi-point loading and unloading, safe operation, easy maintenance, etc. advantage. 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 for conveying materials with high viscosity and compressibility. This type of spiral suspension surface has and completes the functions of mixing and mixing materials at the same time during the completion of the conveying operation. The screw loading conveyor is composed of a driving device to close the trough box and a spiral to push the coal in the trough box and output it through the rotation of the spiral.　　The characteristics of the screw conveyor are: simple structure, small cross-sectional size, good sealing, reliable work, low manufacturing cost, convenient for intermediate loading and unloading, and the conveying direction is reversible, and it can also be conveyed in two opposite directions at the same time. During the conveying process, the materials can 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 have a proper gap between the spiral and the trough.　　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, which is easy to bend and can be arbitrarily arranged according to 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 loading conveyor is not suitable for conveying special materials that are easily deteriorated, highly viscous, easy to agglomerate or high temperature, afraid of pressure, and relatively corrosive.

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