INFLUENCE OF HIGH-TEMPERATURES ON PARTICLE ADHESION

In many technological fields high-temperature processes are becoming increasingly important. In this context, the cohesive and adhesive behavior of particles at high temperatures is particularly problematic. For reliable operation of industrial high-temperature processes, it is essential to understand the fundamental adhesive forces and the mechanisms which can enhance them. The temperature, the chemical composition of the particles and the gas atmosphere surrounding them have a considerable effect on particle adhesion. The various adhesive force mechanisms cannot be considered in isolation when studying real systems. One important application is the regeneration of filters at high temperatures. Reliable design and operation of such filters requires knowledge of the local values of adhesive and cohesive forces which must be overcome during the filter cleaning cycle to remove the dust deposit.