The process of moving grain material in the pneumatic line of a pneumatic screw conveyor

Pneumatic conveyors are used to move diverse cargoes of various industries. To ensure the performance of such work in large specialized agricultural companies that grow grain crops, powerful pneumatic conveyors are used, and the use of such mechanisms is cost-effective provided that grain crops are grown on significant areas or, accordingly, significant gross grain production. In the conditions of operation of multi-branch farms that harvest grain crops on insignificant areas, the topical task is the issue of payback of such transport mechanisms due to their insignificant seasonal workload of the performed works. Solving this important task is possible by developing and using small-sized and mobile pneumatic screw conveyors, which are designed to move grain materials or perform transport work on the currents of multi-branch farms. The purpose of the work is to increase the functional indicators of the operation of screw transport mechanisms by means of constructive improvement and substantiation of rational parameters of the pneumatic screw conveyor. The article describes an improved pneumatic screw conveyor (design and operating principle) and presents the results of a theoretical analysis of the contact interaction of elementary particles of grain material during their movement in the air flow of the pneumatic duct of the pneumatic screw conveyor based on the study of the total elementary kinetic energy.