Screw Conveyor - A Powerful Assistant for Industrial Conveying
Screw conveyors feature a compact structure, small cross-sectional area, light weight, excellent sealing performance, high conveying efficiency, flexible process layout, convenient installation, disassembly and movement, and safe operation. They are suitable for conveying various powdery, granular, and small lumpy bulk materials, such as clay powder, coal powder, cement, sand, grains, small pieces of coal, pebbles, and cast iron chips. However, they are not suitable for conveying materials with high viscosity, easy caking, or easy deterioration. Screw conveyors can be installed in two ways: horizontal and inclined. They can be used in conjunction with other conveying devices to complete operations such as collection, distribution, stirring, mixing, dewatering, and unloading.
Domestic Situation
In China, screw conveying devices are widely used in various industries, and there are many types of structural parameters and blade shapes. In terms of structural parameters, there are variable-speed, variable-pitch, variable housing diameter, variable shaft neck, large inclination angle, and retractable screw conveying devices. In addition, there are shaftless screw conveying devices, which are suitable for sludge and waste treatment, as well as for conveying rough forages such as crop straw.
Our Company's Products
Our company has deeply developed and upgraded screw conveyors according to market needs and development trends. Currently, our products meet the supporting needs of industrial material mixing and conveying, as well as production lines such as mining equipment, ceramsite sintering, and pulverized coal manufacturing in domestic and foreign markets. Among them, the LS series screw conveyor is a screw equipment optimized and improved by our company after digesting and absorbing similar products at home and abroad. The LS series screw conveyor is a continuous conveying equipment without a flexible traction mechanism. It is generally used for short-distance continuous conveying of bulk materials in the horizontal or slightly inclined (inclination angle β≤15°) direction. During the conveying process, the materials can be mixed and stirred. The working environment temperature is -20～50℃, and the temperature of the conveyed materials is less than 200℃.
Applications
The screw conveyor has a compact structure, small cross-sectional area, light weight, excellent sealing performance, high conveying efficiency, flexible process layout, convenient installation, disassembly and movement, and safe operation. It is suitable for conveying various powdery, granular, and small lumpy bulk materials, such as clay powder, coal powder, cement, sand, grains, small pieces of coal, pebbles, and cast iron chips. It is not suitable for conveying materials with high viscosity, easy caking, or easy deterioration. Screw conveyors can be installed in two ways: horizontal and inclined. They can be used in conjunction with other conveying devices to complete operations such as collection, distribution, stirring, mixing, dewatering, fixed-position batching, unloading, and stacking.
Structural Features
The bearing seats at the head and tail are arranged outside the trough. This not only prevents dust from entering the bearings but also makes installation and maintenance more convenient.
The optimized spiral blades solve the problem of material blockage that easily occurs at the discharge port.
The spiral main shaft adopts a variable-diameter structure, which increases the volume at the hanger bearing, reducing the contact between the hanger bearing and the materials and thus reducing its wear.
The connection between the spiral shaft and the hanger bearing adopts an embedded installation. There is no need for axial movement during installation and disassembly, so maintenance and overhaul are convenient.
The hanger bearing is equipped with improved sealing and lubrication devices, which effectively protect and lubricate the bearing, significantly increasing its service life.
