What is the maximum tilt angle of the screw conveyor?

The screw conveyor can be transported horizontally or obliquely or vertically. Then the user's question comes, what is the maximum tilt angle of the screw conveyor? This article will give you a detailed introduction.

Inclined screw conveyor for conveying rice

Feed vertical screw conveyor

Screw conveyor angle

Different types of screw conveyors have different climbing angles. Screw conveyors are mainly divided into tubular screw conveyors, U-shaped screw conveyors, shaftless screw conveyors and shaft screw conveyors.

The shaft tube type screw conveyor has an inclination angle of up to about 45°, and the shaft U-shaped screw conveyor has a maximum inclination angle of about 20°-30°.

The maximum climbing angle of the shaftless tubular screw conveyor is about 30°, while the maximum inclination angle of the shaftless U-shaped screw conveyor is 20°-30°.

At the same model and at the same speed, the greater the angle of climb of the screw conveyor, the lower the delivery volume. Therefore, in the selection of the angle of the screw conveyor, the user needs to pay attention to the following points:

1. The nature of the material to be transported - the particle size and fluidity of the material

If the material you need to transport is of good fluidity, if the screw conveyor is transported at a large angle, the material will easily fall to the feed inlet of the conveyor. Under normal circumstances, domestic manufacturers produce a screw conveyor of ≤45°. If this angle is exceeded, the delivery efficiency will decrease.

For the material with poor fluidity, the maximum climbing angle of the screw conveyor can reach 50°, but the material is transported by the seeding method, and a certain pressure is applied to the feeding port, and the material is squeezed into the conveying body, and the bottom of the device is Bearings are subject to tremendous pressure and the bearings are easily damaged.

2.The proportion of the material - the specific gravity can increase the climbing angle

The specific gravity of the material also has an influence on the inclination angle of the screw conveyor. When the material with a specific gravity angle is conveyed, the grinding property is good, and the inclination angle of the screw conveyor can be appropriately increased. If the specific gravity of the material is light, in the process of conveying, the material is It is easy to have dust.

When the inclination coefficient of the inclined screw conveyor becomes larger, the filling coefficient of the material will be reduced, and the conveying capacity of the screw conveyor will be correspondingly reduced.

3. The gap between the spiral blade and the pipe wall - the smaller the clearance, the larger the angle

The smaller the distance between the blades of the screw conveyor and the pipe wall, the screw conveyor will not discharge the material from the gap to the discharge port of the screw conveyor when conveying the material, so the climbing angle of the screw conveyor can be appropriately increased.

4.The speed of the screw conveyor - the faster the speed, the greater the angle

The faster the screw conveyor speed is, the higher the material conveying efficiency is. Therefore, the climbing angle of the conveyor can be appropriately increased, but the angle is not too large, and it should be controlled at about 45°.

If the screw conveyor needs to be tilted, the tilt angle is generally about 10 degrees to achieve better conveying effect. The higher the tilt angle, the worse the conveying effect. Therefore, when the user chooses, the equipment needs to be estimated according to the layout design. For the angle of inclination, please consult Dahan screw conveyor manufacturer for details.