Optimum effect
Roller crushers and mills in coarse and fine grinding
Summary: In process technology, the common classification is the subdivision into pre-crushing and secondary crushing as well as coarse, fine and ultrafine crushing. Here, process-related and product-specific specifications usually determine the optimum effectiveness of the crushing technology. Depending on product or process technological requirements, the crushing systems are used as impact systems, pressing, shear or cutting systems or as combined systems.
The possible material combinations for crushing/milling tools or product-contacting structural parts are also selected in accordance with processes and products. Contamination-free processing, for example, is mostly connected to the use of ceramic tools and internally coated housings. Using construction parts or rollers made of tungsten carbide for metallurgical products (silicon, metallurgical semiconductor technology) is common practice. CaSi-alloys, during whose processing hydrogen arises, are processed under protective gas (inert gas) – due to the excess pressure, gas-tight constructions...
