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FIBER GRINDING METHOD OF MATERIALS AND ISSUES OF ITS PRACTICAL IMPLEMENTATION

The problem of fine grinding of materials is voiced and it is shown that for a number of characteristics the existing equipment does not meet modern requirements, and a new development trend is the transfer of grinding machines from simple tools to functionally new systems for obtaining products with desired properties. The article describes the fiber mechanism of grinding materials and provides options for performing both the fibers themselves and the methods of their weaving and the formation of spatial frameworks or sponges. The performed analysis of metal fibers, their properties and production methods makes it possible to assess their possibility of using them as grinding elements that provide high contact stresses in working areas. A design of a fiber apparatus for grinding and dispersing has been developed, which allows the dispersion process to be carried out in a continuous mode and is intended for processing suspensions and pastes. On the example of grinding chalk in a single-section model, the fundamental possibility of obtaining fine powders is shown, which indicates a high disintegrating ability of the fiber grinding method. The directions of practical implementation of the fiber method of grinding materials are substantiated and priority tasks for its development are set.