Feili Environmental Protection U-shaped shaftless screw conveyor

Feili Environmental Protection U-shaped shaftless screw conveyorProcess Characteristics

Compared with traditional shaft screw conveyors, shaftless screw conveyors have the following outstanding advantages due to the adoption of a centerless shaft design and the use of a flexible integral steel screw to push materials:

1. The shaftless screw conveyor has strong resistance to entanglement: due to the absence of central axis interference, it has special characteristics for conveying belt shaped, viscous materials, and easily entangled materials. For example, it is used for conveying fine grids in sewage treatment plants, with a net distance of 50mm between the grid bars for cleaning machine slag and filter press mud cake, or for handling and transporting garbage in garbage disposal sites, which can prevent accidents caused by blockage.

2. The shaftless screw conveyor has good environmental performance. The shaftless screw conveyor adopts fully enclosed conveying and easy to clean spiral surface, which can ensure environmental hygiene and prevent the conveyed materials from being contaminated or leaking.

3. The shaftless screw conveyor has high torque and low energy consumption. Due to the fact that the spiral has no shaft, the material is not easily blocked, and the discharge port is not blocked, so it can operate at a lower speed, transmit smoothly, and reduce energy consumption. The torque can reach 4000N. m.

4. The shaftless screw conveyor has a large conveying capacity. The conveying capacity of the shaftless screw conveyor is 1.5 times that of the traditional shaft screw conveyor with the same diameter.

5. The shaftless screw conveyor has a long conveying distance. The single machine conveying length can reach 60 meters. And according to user needs, multi-level series installation can be adopted to transport materials over long distances.

6. The shaftless screw conveyor is capable of mobile operation. The mobile shaftless screw conveyor developed and produced by our company is capable of mobile operation and can be used for multiple purposes. It can be discharged from both the bottom and the end. The machine can operate at high temperatures by using lining plates. Compact structure, space saving, beautiful appearance, easy operation, economical and durable.

Feili Environmental Protection U-shaped shaftless screw conveyorIn terms of conveying form, it is divided into two types: axial screw conveyor and shaftless screw conveyor. In terms of appearance, it is divided into U-shaped screw conveyor and tubular screw conveyor. Axial screw conveyor is suitable for non viscous dry powder materials and small particle materials (For example: cement, fly ash, lime, grain, etc.) and shaftless screw conveyors are suitable for conveying materials that are viscous and easily entangled. (For example: sludge, biomass, garbage, etc.)

The working principle of a screw conveyor is that the rotating screw blades push the material and transport it, and the force that prevents the material from rotating together with the screw conveyor blades is the weight of the material itself and the frictional resistance of the screw conveyor housing to the material.

The spiral blades welded on the rotating shaft of the screw conveyor have different surface types depending on the conveyed material, including solid surface type, belt surface type, and blade surface type. The screw shaft of the screw conveyor has a thrust bearing at the end of the material movement direction to provide axial reaction force to the screw along with the material. When the machine is long, an intermediate suspension bearing should be added.