Slag Rotary Dryer
The screw feeder (conveyor) is a mechanical device that uses rotating spiral blades to transport liquids or granular materials inside a tube. They are widely used for the loading and unloading of various bulk materials. In modern industry, screw feeders are usually used horizontally or at a slight incline as an efficient method of transporting semi-solid materials.

Description
The screw feeder is equipment that uses a rotating screw shaft to continuously transport material. It is suitable for the uniform feeding and movement of powdery, granular and small-lump materials. The equipment features a compact structure, good sealing, stable feeding and easy installation. It can be used both for continuous transport and for the metered feeding of material.
The screw feeder is widely used in the building materials, cement, metallurgical, chemical, power, mining, grain-processing and environmental industries for transporting and metering fly ash, cement, raw meal, mineral powder, coal dust, lime powder and other materials.
Working principle
During operation, the electric motor drives the screw shaft through a reducer. The spiral blades move the material along the trough, ensuring continuous and uniform feeding and transport. By adjusting the motor speed, the throughput can be changed and precise metering of the material can be achieved.
Main advantages
- Stable transport and uniform feeding of material.
- Good sealing, effectively reducing dust generation.
- Simple structure, easy maintenance and high reliability.
- Throughput can be regulated by means of a frequency converter.
- Can be custom-made by length, inclination angle and material of construction.
- Suitable for transporting high-temperature, corrosive and abrasive materials.





























