Heating Screw Conveyor

Thermal Screw Heat Exchangers

High-Performance Bulk Material Heating with KÖLLEMANN Technology

The KÖLLEMANN Heating Screw Conveyor is a reliable and efficient solution for heating, drying, and thermal treatment of bulk materials and pasty media. These conveyors are designed to introduce a precisely controlled amount of heat into the product in order to:

• Heat or melt bulk materials
• Evaporate liquid components
• Start or complete chemical reactions

They are ideal for handling a wide range of materials such as:

• Petroleum coke
• Dust, pastes, and sludges
• Pasty or adhesive bulk products
• Other heat-sensitive or reaction-driven materials

Robust & Maintenance-Friendly Design

A major challenge in thermal conveyors—thermal expansion of the worm shaft—has been overcome with the special KÖLLEMANN carbon bearings. These bearings absorb expansion stresses, minimizing wear, reducing maintenance, and extending service life.

Additionally, the tongue-shaped shaft passages allow individual worm shafts to be replaced without dismantling the entire system, resulting in minimal downtime and lower operating costs.

Flexible Applications & Heat Sources

KÖLLEMANN Heating Screw Conveyors can be tailored for a wide range of processes:

• Throughput rates from a few kg/h up to 60 t/h
• Compatible with heat sources such as thermal oil, steam, or other heating media
• Optional modular piping, valves, flow meters, and temperature monitoring integrated into delivery

Technical Specifications

• Max. Operating Temperature: Up to 450°C
• Heat Transfer Method: Proven hollow flight principle
• Heat Transfer Medium: Safely separated from bulk product
• Design Options: Single-shaft or multi-shaft configurations
• Throughput Capacity: From kg/h scale to 60 t/h
• Insulation: Optional modular insulation for reduced energy loss
• Customization: Optional piping, valves, flow meters & sensors integrated on delivery
• Material Compatibility: Suitable for all bulk solids, dust, pastes, and sludges