Pankiv V. Substantiation of parameters of screw conveyor with combined working body

A topical problem of screw transport mechanisms enhancement by means of development and substantiation of parameters of combined working body of a screw conveyor has been solved in the thesis on the basis of the whole set of summarized scientific results. The screw conveyor consists of a loading bin and an encasing. The encasing has an auger in the form of a drive pulley where spiral turns are fixed along helix line. Knives-cutters are placed between turns and at a certain angle to the drum transversal cross-section view. The helix line of knives-cutters and spiral turns winding is made with an adjustable pitch. Screw conveyor enhancement has been achieved due to the simultaneous combination of two separate operations, namely root crops transportation and breaking into one related operation. On the basis of conducted analytical research we have developed the following: a mathematical model describing functionally the process of transportation of discrete units of minced root crops by screw conveyor working bodies on the basis of analysis of material balance of incoming and outgoing flows; a mathematical model of a screw conveyor capacity based on the conformation of an auger-type conveyor throughput and specified factor of working space filling. Main rational parameters of a screw conveyor with combined working body have been substantiated on the basis of conducted theoretical and experimental investigations. The results of the research have been introduced into the company PJSC “Agroprodservice” of Ternopil region on the succulent feed production line.