Screw blade is an important part of screw conveyor. Screw conveyor transports materials by rotating screw blade. Screw conveyor is divided into shaft type non shaft type. Therefore, what should be paid attention to when designing axial non axial helical blades?

Screw conveyor screw blade

Screw conveyor is usually called winch. They have the advantages of simple structure, small section size, good sealing performance, multi-point loading unloading, convenient operation low manufacturing cost. Although the shape structure of trough screw conveyor tubular screw conveyor are different, they all transport materials through the rotation of internal screw blades. There are two types of helical blades: axial non axial. What are the different characteristics of the two helical blades?

Generally speaking, the spiral blades used in LS type screw conveyor GX type screw conveyor have shafts, the pitch of the front rear spiral blades is sparse dense, which can effectively prevent the pipeline blocking. Screw conveyor is usually called "eat less, spit fast", the uniformity stability of material transportation. These two types of Stranglers can also be seen in various industries, have a wide range of uses.

Let's talk about shaftless helical blades. Because of its characteristics, this kind of conveyor is called shaftless screw conveyor. Compared with the traditional shaftless screw conveyor, the shaftless screw conveyor adopts shaftless design flexible integral steel screw pusher. Shaftless screw conveyor has the outstanding advantages of strong anti winding ability no central axis interference, has special advantages in the aspects of conveyor belt easy winding materials. Shaftless screw conveyor is used in sewage treatment plant to transport materials, such as slag cleaner mud cake filter press. The net distance of medium fine mesh is 50 mm

Screw conveyor has been widely used in various fields of national economy, suitable for conveying powder, particles small materials, such as cement, pulverized coal, grain, fertilizer, ash, sand, coke, etc. suitable for transporting perishable, sticky agglomerated materials. The working environment temperature of LS screw conveyor is generally - 20-40 ℃, the temperature of conveying materials is generally - 20-80 ℃. Ls screw conveyor is suitable for horizontal small angle arrangement, the angle is more than 20 degrees. If there are special requirements, special design manufacturing can be carried out.

Spiral blade is widely used in industry plays an important auxiliary role in the mixing of cement lime. In these related industries, spiral blade plays a very important role, which greatly reduces the labor cost, shortens the labor time, is more convenient improves the efficiency. Axial helical blades are made of carbon steel, alloy steel, wear resistant steel stainless steel. The blade is manufactured by cold pressing technology, the inner diameter, outer diameter, pitch, spiral plane line vertical angle of the Middle Spiral; the outer diameter, thickness spacing are large; the spiral curve is smooth, the spiral angle is beautiful, the reference line of the spiral surface is perpendicular to the middle curve. After pressing. Welding, polishing painting. The factory can customize different sizes of spiral blades according to the requirements of customers, determine the thickness diameter according to the actual situation. The obvious difference between shaftless spiral blade shaftless spiral blade is that it has no central axis matches with screw conveyor. For transported materials, it can be transported in one piece, easy to entangle adhere. Because of its anti winding property, shaftless has advantages in conveying powder viscous materials.

Difference between shaft conveyor shaftless screw conveyor

1. Shape structure

The shaftless screw conveyor is composed of transmission device, shell, Bush, shaftless blade, cover plate, etc.; the axial screw conveyor is composed of driver, shell, inner tube shaft, blade, cover plate, etc;

2. Material transportation

Shaftless screw conveyor is suitable for conveying sludge, domestic garbage, grid slag other materials. They are viscous winding materials bulk materials. It is because the design of shaftless shaftless screw conveyor has great advantages for these materials. Axial screw conveyor is suitable for conveying materials: powder, small particles, etc. If viscous material such as silt is transported, it will stick to the inner pipe shaft blade, the bulk material transported will stick easily.

3. Mode of transportation

Shaftless screw conveyor is suitable for horizontal conveying. According to the actual use, the inclination angle should exceed 20 degrees. Axial screw conveyor is suitable for: horizontal, inclined vertical conveying