Year1
- 输送长度：
- 小于40cm
1. Selection of screw conveyor
(1) Application scope and characteristics
Screw conveyor is a conveying equipment widely used in chemical industry, building materials, food and other departments. It is mainly used for Conveying powdery, granular and small lump materials. It is not suitable for conveying perishable, sticky and caking materials.
The ambient temperature used by the screw conveyor is ~℃. The conveyor's inclination angle conveying length is generally less than, and the longest does not exceed.
Compared with other conveying equipment, screw conveying has the advantages of simple structure, small cross-sectional size, good sealing performance, multi-point loading and unloading, safe and convenient operation, and low manufacturing cost. Its disadvantages are serious wear of machine parts, low conveying capacity, high power consumption, and materials are easily broken during transportation.
(2) Classification and structural characteristics
The spiral blades of screw conveyors
There are three types of spiral blades: solid spiral surface type, belt spiral surface type and blade spiral surface type. The solid spiral surface is called the manufacturing method, and its spiral pitch is the diameter of the blade. The spiral conveyor is suitable for conveying powdery and granular materials. The belt spiral surface is also called the manufacturing method. Its spiral pitch is the same as the diameter of the spiral blade. It is suitable for conveying powdery and small materials. Blade-type spiral surfaces are rarely used and are mainly used to transport materials with high viscosity and compressibility. During the transportation process, stirring, mixing and other processes are completed at the same time. The spiral pitch is approximately the diameter of the spiral blade.
The spiral blades of the screw conveyor have two directions of rotation: left-hand and right-hand.
The types of screw conveyors include horizontal fixed screw conveyors and vertical screw conveyors. Horizontal fixed screw conveyors are the most commonly used type. Vertical screw conveyors are used to lift materials over short distances. The conveying height is generally no greater than 1. The spiral blades are of solid surface type and must have horizontal screw feeding to ensure the necessary feeding pressure.
The material outlet end of the , type screw conveyor should be equipped with a /~ circle reverse spiral to prevent the powder from clogging the end.
The screw conveyor consists of three parts: the screw machine body, the inlet and outlet and the driving device.
The screw machine body consists of a head bearing, a tail bearing, a suspension bearing, a spiral, a casing, a cover plate and a base.
The driving device consists of a motor, reducer, coupling and base.
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