THEORETICAL STUDY RESULTS OF PRODUCT FLOW MANAGEMENT PROCESS IN HAMMER-TYPE SHREDDER WORKING CHAMBER.

The problem under study is the uneven grinding and high specific energy consumption of grain crop hammer-type shredders with centrifugal segregation units of the air-product flow inside the working chamber. Elimination of negative consequences of segregation during grinding of the grain mass is achieved by improving the efficiency of the air-product flow management inside the hammer-type shredder working chamber; by separating of standard particles from the main flow and their lateralization (withdrawing to lateral areas) to remove from the working chamber. The analytical dependences of the trajectories of the air-product layer particles during the motion from the reflector to the sieve and their velocities profile have been obtained. The optimal range of tilt angles of the reflecting surface of the separator is in the range from 40 degrees to 50 degrees. From the condition of uniform distribution of particles on the surface of the sieve, the equation of its shape for this range has been obtained. The method of changing the shape of the reflecting surface of the separator for the use of a plane-shaped sieve is proposed. Analytical dependences allow, depending on the shape of the separator, to set the shape of the sieve and vice versa - depending on the shape of the sieve to set the shape of the separator. At the same time, the analysis of the movement of the ingredient particles will make it possible to develop the structural and technological scheme of the crusher, which provides increased productivity by improving the conditions of the grain material separation process and timely unloading the finished product from the grinding chamber. [ABSTRACT FROM AUTHOR]