Environmental technology
recycling, drying of sewage sludge, feeding waste into the incinerator
Heating Screw Conveyors, Screw heat exchangers,
Self cleaning screw heat exchangers
Areas of application
![Schneckenfoerder_1600x1067px_Startseite_DSC_0081](https://www.koellemann.de/wp-content/uploads/2019/11/Schneckenfoerder_1600x1067px_Startseite_DSC_0081.jpg)
![Anwendungsbereiche_Aluminium](https://www.koellemann.de/wp-content/uploads/2019/11/Anwendungsbereiche_Aluminium.jpg)
Aluminium production
Preheating of the petcoke (carbon), to be mixed with pitch and be formed to anodes
Preheater
![IMG_5984-1](https://www.koellemann.de/wp-content/uploads/2022/05/IMG_5984-1.jpg)
Plastic production
Processing of polyolefins (HDPE / PP) – mixing the raw powder with additives to feed the extrusion system
Polymer-Additive Mixer, Rotary Valves, Screw Conveyors
![Anwendungsbereiche_Chimikalien](https://www.koellemann.de/wp-content/uploads/2019/11/Anwendungsbereiche_Chimikalien.jpg)
Chemical industry
Thermal processing (drying, heating, cooling), crushing, conveying & dosing chemicals
Mixing Screws, Feed Screws, Screw heat exchangers
![Anwendungsbereiche_Kraftwerk](https://www.koellemann.de/wp-content/uploads/2019/11/Anwendungsbereiche_Kraftwerk.jpg)
Power plant technology
Cooling ashes, feeding & dosing coal, shutting-off from high temperatures
Screw Conveyors, Self cleaning Screw heat exchanger,
High Pressure/High shock resistant Rotary Valves
![Anwendugsbereiche_Rohstoffe](https://www.koellemann.de/wp-content/uploads/2019/11/Anwendugsbereiche_Rohstoffe.jpg)
Processing of Raw-Materials
(Ore, Cement etc.), feeding into calciners, dosing raw-meal, drying ore
Cooling Screw Conveyors, Rotary Valves, Self Cleaning Rotary Valves