Screw conveyer is a machine that uses a motor to drive a screw to rotate and push materials to achieve the purpose of conveying.

The screw conveyor can convey horizontally, obliquely or vertically. It has the advantages of simple structure, small cross-sectional area and good sealing performance. It is divided into shaft screw conveyor and shaftless screw conveyor in the form of conveying. It is divided into U-shaped in appearance. Screw conveyor and tubular screw conveyor

The screw conveyor has the advantages of simple structure, low manufacturing cost, strong sealing, safe and convenient operation, etc. It can be loaded and unloaded at multiple points in the middle. It is widely used in chemical, building materials, metallurgy, food and other sectors. When the inclination angle β is less than 20 °, it can transport powdery, granular and small materials that are not viscous, not easy to deteriorate, and do not agglomerate.

Product Usage:

The screw machine is widely used in various industries, such as building materials, chemical industry, electric power, metallurgy, coal coal, grain and other industries. It is suitable for horizontal or inclined conveying powder, granular and small lump materials, such as coal, ash, slag, cement, and grain. Etc., the material temperature is less than 200℃. The screw machine is not suitable for conveying materials that are perishable, viscous, and easily agglomerated. In the concrete mixing plant, the role of the screw conveyor has been the most manifested.

Features:

Simple structure, small cross-sectional size, good sealing, reliable work, low manufacturing cost, convenient for intermediate loading and unloading, the conveying direction can be reversed, and it can also be conveyed in 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.

• 1. The screw conveyor runs smoothly in conveying the straw, and the feeding is even.
• 2.  It is closed, and cold air is not easy to enter after it is connected to the gasifier inlet.
• 3.  The connection with the gasifier is made of metal, which is not afraid of fire.

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.

Classification of screw conveyors

From the perspective of the displacement direction of the conveying material, screw conveyors are divided into two types: horizontal screw conveyor and vertical screw conveyor. 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 transporting special materials that are easily deteriorated, highly viscous, easy to agglomerate or high temperature, afraid of pressure, and relatively corrosive.

There are two types of spiral surface of screw conveyor: solid spiral (S manufacturing method) and belt spiral (D manufacturing method). The flange connection between the screw shafts ensures the interchangeability of the connecting shafts and is convenient for maintenance. The screw conveyor cover is a tile type and is clamped on the casing with a cover buckle. If the sealing performance needs to be improved, the user can add a waterproof canvas between the cover and the casing. The screw conveyor's feeding and discharging device has four types: feeding port, square discharging port, hand-pushing discharging port, and rack-type discharging port, which are welded on the body by the user at the site of use. When arranging the position of the inlet and outlet of the screw conveyor, care should be taken to ensure the distance from the inlet to the end, and at the same time to avoid the collision between the inlet and the oil cup of the suspension bearing, the connecting flange of the casing, and the base.