WLS shaftless screw conveyor

WLS shaftless screw conveyor is a new type of screw conveyor, manufactured and designed in accordance with standards. Compared to shaftless screw conveyor, it adopts a shaftless design and uses flexible integral steel screws to push materials. Therefore, shaftless screw conveyor has the following outstanding advantages: strong resistance to winding, no shaft interference, and excellent performance in conveying belt shaped and easily winding materials. Due to the lack of shaft in the spiral, the material is not easily blocked and the discharge port is not blocked, allowing for lower speed operation, smooth transmission, and reduced energy consumption. The torque can reach 4000N/m. Large conveying capacity. The conveying capacity of a non axial screw conveyor is 1.5 times that of a traditional axial screw conveyor with the same diameter, and the conveying distance is long. The single machine conveying length can reach 60 meters. And according to user needs, multi-level series installation can be adopted to transport materials at a distance. Capable of working with mobility.

The WLS shaftless screw conveyor mainly consists of a driving device, a head assembly, a casing, a shaftless spiral body, a groove lining plate, a feeding port, a discharging port, a machine cover (when required), a base, etc. The driving device adopts a cycloidal pinwheel reducer or a shaft mounted hard tooth gear reducer. When designing, the driving device should be set at the discharge port end as much as possible, so that the spiral body is in a tensile state during operation. The head of the shaftless screw conveyor is equipped with thrust bearings, which can withstand the axial force generated during material transportation. The casing is U-shaped or O-shaped, with a rainproof cover added to the upper part, made of stainless steel, carbon steel, or fiberglass. The material of the groove lining plate is plastic board, rubber board, or cast stone board, etc. There are two types of inlet and outlet: square and circular. Generally, the form of the inlet and outlet is determined by the user.

The WLS shaftless screw conveyor has the advantages of simple structure, low production cost, strong sealing, and convenient operation. It can be loaded and unloaded at multiple points in the middle. Widely used in sectors such as chemical engineering, building materials, metallurgy, and grain, it can transport powdery, granular, and small materials with low viscosity, not easy to deteriorate, and not prone to locust clumping at an inclination angle of β<20 °.

Spiral conveyor is a commonly used continuous conveying machinery without flexible traction components. It utilizes the rotation of working components, such as spiral bodies, to transport materials forward. It is one of the important mechanical equipment for modern production and logistics transportation, and has been widely used in various sectors of the national economy, including metallurgy, mining, power, building materials, light industry, ports, and other heavy industry and transportation sectors. Mainly used to transport bulk cargo materials such as coal, ore, grains, sand, fertilizers, etc. In the cement industry sector, screw conveyors are mainly used to transport the raw materials required for cement production, accompanied by some process treatments such as stirring and mixing. There are many types, structural differences, and design parameters of screw conveyors, and each parameter is interrelated and affects each other, making the design and selection work complex and difficult, especially some main parameters. If selected and combined improperly, it will seriously affect the production efficiency and performance of screw conveyors.

Spiral conveyors are mainly divided into horizontal and vertical spiral conveyors, which can transport materials in horizontal, inclined, or vertical directions respectively. These two models are also commonly used. Spiral conveyors can be divided into double screw conveyors and single screw conveyors based on their structure, with the latter being more commonly used. There are two installation methods for screw conveyors: fixed and mobile, with most screw conveyors using fixed ones.

The screw conveyor in the cement industry is mainly used for the transportation and mixing of raw materials, generally using solid spiral blades, intermediate hanging bearings, and single head ordinary screw conveyors with equal pitch. It consists of a rotating shaft with spiral blades and a material groove. The shaft is installed on the bearing seats at both ends of the material groove through bearings, and the shaft head at one end of the shaft is connected to the driving device. There are inlet and outlet ports on the top and bottom of the material trough. The working principle is that the material is added from the feeding port. When the shaft rotates, the material is subjected to the normal thrust of the spiral blade. The radial component of this thrust and the friction force between the blade and the material may carry the material around the shaft. However, due to the gravity of the material itself and the friction force between the material and the groove, it does not rotate together with the spiral blade. Under the axial component force of the normal thrust of the blade, it moves along the axial direction of the groove.

The outstanding advantages of WLS shaftless screw conveyor:

1. WLS shaftless screw conveyor has strong anti winding performance: due to the absence of shaft interference, it has some advantages in conveying belt shaped, viscous materials, and easily entangled materials. For example, when used in sewage treatment plants to transport fine grids, the net distance between the grid bars of the cleaning machine slag and filter press mud cake with a net distance of 50mm can prevent accidents caused by blockage, or when handling transportation waste in garbage treatment sites.

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

3. The WLS shaftless screw conveyor has a large torque and low energy consumption. Due to the lack of shaft in the spiral, the material is not easily blocked and the discharge port is not blocked, allowing for lower speed operation, smooth transmission, and reduced energy consumption. The torque can be 4000N/m.

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

5. The WLS 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 at a distance.

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