1. Product Overview

Tubular screw conveyor, a specialized type of screw conveyor, features a fully enclosed cylindrical tube that houses the rotating screw blade. It is designed for continuous conveying of powdery, granular, and small lumpy bulk materials, effectively preventing material leakage, dust pollution, and external interference. Compared with ordinary trough screw conveyors, it has better tightness, higher conveying efficiency, and stronger adaptability to complex working conditions, widely used in industries requiring clean and efficient material transfer. It can realize horizontal, inclined, or vertical conveying, and is easy to install, operate, and maintain.

2. Features

• Full Enclosed Structure: Adopts an integral tubular design, completely isolating materials from the external environment, which not only prevents dust leakage and environmental pollution but also avoids moisture, contamination, or loss of materials during conveying, ensuring clean and environmentally friendly operation.

• Compact and Space-Saving: The tubular structure is compact, with small floor area and space occupation, easy to install in narrow workshops, warehouses, or production lines, and convenient for layout and integration with other equipment.

• Stable and Reliable Operation: The transmission structure is simple, with few wearing parts (mainly screw blades and bearings), low failure rate, stable conveying speed, and capable of long-term continuous and efficient operation, reducing maintenance costs and downtime.

• Versatile Conveying Performance: It can realize horizontal (0°), inclined (0°–45°), and vertical (90°) conveying, and the conveying direction can be adjusted (forward or reverse) according to actual needs, flexible to adapt to different layout requirements.

• Strong Material Adaptability: Suitable for conveying various powdery (such as cement, flour, coal powder), granular (such as grain, fertilizer, ore particles), and small lumpy materials (with particle size not exceeding 1/3 of the screw diameter), and can be customized with different materials of screw blades and tubes according to material characteristics (such as corrosion resistance, wear resistance).

• Easy Operation and Maintenance: The control system is simple, supporting local or centralized control, easy to operate; the tube and screw blade can be disassembled and cleaned conveniently, reducing maintenance workload and improving maintenance efficiency.

• High Conveying Efficiency: The enclosed tubular structure reduces material resistance during conveying, improves conveying speed and capacity, and ensures uniform and stable material feeding and discharging.

3. Applications

• Building Materials Industry: Conveying cement, cement clinker, fly ash, lime powder, sand, and concrete admixtures in cement plants, concrete mixing stations, and precast component factories, ensuring clean and dust-free operation.

• Grain and Feed Industry: Conveying wheat, corn, rice, soybeans, feed pellets, bran, and malt in grain depots, feed factories, and farms, preventing material dampness and pollution, and ensuring food/feed safety.

• Mining and Metallurgy Industry: Conveying coal, coal powder, ore powder, crushed stone, and metallurgical raw materials in mines, coal washing plants, and smelters, adapting to harsh working environments with dust and impurities.

• Chemical Industry: Conveying chemical raw materials (such as urea, ammonium nitrate, chemical powder), additives, and plastic particles, with optional corrosion-resistant stainless steel tubes and blades to avoid material reaction with equipment.

• Food Industry: Conveying flour, starch, sugar, salt, and food additives, adopting food-grade materials (304/316 stainless steel) to meet food hygiene standards, ensuring no pollution to food materials.

• Environmental Protection Industry: Conveying sludge, garbage particles, and environmental protection fillers in waste treatment plants and sewage treatment facilities, realizing sealed conveying to avoid secondary pollution.

• Other Industries: It can also be used in pharmaceutical, glass, ceramic, and other industries for conveying powdery or granular raw materials, meeting the requirements of clean production.

4. Technical Parameters