Kryvenko A. Improving the efficiency of magnetite suspension desliming based on changes of hydrodynamic parameters of the process.

The thesis is devoted to solving topical scientific and practical task on improving the efficiency of magnetite suspension desliming based on changing hydrodynamic parameters of the process taking into account the spatial orientation of the feed stream, rate of primary power supply, ratio of the solid and liquid phases, as well as way of primary power supply in the receiving container of deslimer. It is determined that improving the efficiency in desliming is provided by radial primary power supply, which leads to an increase in the time of particles being in a suspension state in the area of airborne, resulting in increased efficiency of particles separation by grain size -0,025+0 mm. At radially-directed supply of deslimer reorienting the directions of motion vectors of power and particles deposition take place, it allows to increase the quality of concentrate. It is found that the dynamics of change of hydraulic size of ore particles of 0,071-0 mm has a parabolic dependence, which is limited to the spatial orientation of the feed stream and makes it possible to increase the efficiency of separation of magnetite and quartz components. A new method of forming a radial flow of feed supply at the receiving box of deslimer; defined constructive technological parameters of gravity dressing in deslimers. Branch - rozrobka rodovisch korisnih copaline (tehnіchnі Science)