Abstract
At present, due to the rapidly developing pace of construction, a lack of natural raw materials for the production of building materials is acute.Accordingly, the actual task of the construction industry is the preservation of natural raw materials, energy saving and environmental protection, processing production waste purposed to make high-quality products and creating waste-free production.Analysis of Russian raw material resources shows the most large-tonnage raw material is the waste of wet magnetic separation formed during the enrichment of ores.A completed set of studies on the use of wet magnetic separation waste demonstrate the most effective use is to mechanically activate a mixture of waste and cement; preparation of a new class of binders -finely ground multicomponent cements and low water demand blinders.Taking into account the existing requirements, experimental centrifugal grinding unit with predetermined trajectories of the grinding chambers are chosen to conduct complex experimental studies.The developed centrifugal grinding unit is designed for grinding materials with different physicomechanical characteristics by the combined grinding method (dry and wet), both in periodic and in continuous modes.Analysis of experimental studies outcomes indicates the efficiency of using centrifugal grinding unit in the wet grinding and allows justifying the significant superiority of wet grinding for the production of finely ground raw materials.