The thyssenkrupp rotary cooler / drum cooler:
Proven design. Highest process flexibility. Low maintenance.
For many processes this robust rotary cooler is the optimum solution. Benefits such as high throughput rates, easy handling, great flexibility for fluctuations in material properties and quantities, high availability, and a low maintenance requirement speak for themselves.
This rotary cooler always works in direct contact with the bulk material and the cooling medium in a counter-flow design. Depending on the material characteristics, different shapes of blades/internals, e.g. a scoop lifter, can be selected for higher heat transfer between the cooling gas and the bulk material.
The cooling air passes through the cooler counter-flow to the material, thus providing the most efficient heat transfer and lowest product temperature. The flights inside the cooler are specially designed for improved cooling and ensure contact between the cooling air and the respective particle sizes and heat-transfer characteristics of the bulk material is maximized. Optionally, direct cooling can be enhanced by means of a water spray lance at the feed or at the discharge end, or via an external water spray on the cylinder of the drum.
Efficient thermal process
If the feed temperature of the material to be cooled is very high, the feed end of the cooler can be fabricated from high-temperature-resistant steel or be refractory lined to ensure low maintenance. The hot air leaving the cooler can be utilized as pre-heated secondary combustion air, which increases the overall efficiency of the thermal process.
In combination with a customized design and layout to maximize thermal efficiency, the thyssenkrupp rotary cooler is a future-proof solution.