Throughput rate up to 60t/h (currently, might be increased later)
For heating of petcoke, a residue from the cracking of petroleum which consists nearly of pure carbon.
KÖLLEMANN-Preheaters perform the heating-process in which the petcoke is heated from min. 0°C to approx. 200°C.
The heated petroleum coke is then mixed with hot pitch by a kneader; the emerging paste is formed into blocks. The produced blocks will be baked and represent the anode, which is used during the Hall-Héroult-Prozess for the reduction of aluminum oxide to aluminum.
Due to their state of the art design KÖLLEMANN preheaters stand out from other available products on the world market. Our design offers decisive advantages for maintenance, life, efficiency and required space. By applying the hollow flight principle our preheaters offer maximum performance within the smallest possible space. The modular insulation is not only maintenance friendly due to rapidly removable panels but also insures the best possible exploitation of the supplied heat due to minimizied radiation losses.
We have developed an optimal solution to compensate thermal expansion of the screw-shafts. It is completely absorbed by a special-designed and produced KÖLLEMANN-Carbon-Bearing, which faces a minimized maintenance. The tongue-shaped shaft-passages allows to replace individual worm-shafts without the necessity to remove the end-walls or any of the other shafts. This reduces downtime significantly.
The product-range delivers Preheaters starting from 5t/h up to 60t/h – On request there is an option to equip the delivery with an especially adapted piping with modular insulation, which enables to connect the preheater onto a central inlet and outlet point. All necessary valves and flowmeters as well as temperature measurement-units can be ordered and on demand preassembled to the piping-system. Click here for product video Preheater