With our screw-heat exchangers, bulk materials receive the perfect thermal treatment. Depending on the condition of your bulk product, sludge or paste, the self-cleaning provides a proven, reliable option for the screw-heat exchanger, which ensures uniformly clean hollow flight surfaces. As these constitute the main surfaces for heat transfer, efficient operation can thus be ensured. The temperature range of the screw-heat exchanges extends from 1200°C (cooling) to over 220°C (heating) with heat transfer media temperatures above 350°C
Petroleum coke, a byproduct from the cracking of petroleum that is practically pure carbon in composition, is used in the heating process.
Our Preheaters are responsible for the heating process, which involves heating the petcoke from a minimum of 0°C to around 200°C.
An electric mixer kneads the heated petroleum coke and hot pitch together until a paste is created, which is then shaped into blocks.
Cooling-screw conveyors are used to chill a wide range of bulk materials and pasty media, including food. For a variety of application areas and bulk material compositions, cooling screw conveyors with specialised features are offered on the market. It is suited for all applications in which not only cautious handling of the bulk product, but also rigorous separation of the cooling medium and the bulk product is necessary, such as in food processing.READ MORE
We provide unique solutions for each specific field of application and cover the entire process portfolio, including cooling-off bulk-solids such as, for e.g., bed-ashes, drying of sludges or pastures, and heating-off, such as petcoke for the anode-lines of the aluminium industry, among other applications.
Our Screw Heat Exchangers vary substantially from the usual versions available on the market due to the fact that they use the well-proven Hollow-Flight Principle, which contains a number of advantageous characteristics.