Návrh dávkovacího zásobníku pro tryskací zařízení

Abstract

This bachelor thesis focuses on the design of a dosing hopper for blasting equipment with an emphasis on optimizing the flow of abrasive materials. The theoretical part describes the principles of blasting, types of abrasives used, and factors influencing the quality of surface treatment. The experimental part is dedicated to the analysis of the mechanical and physical properties of brown fused alumina, including measurements of wall friction angle, granulometric distribution, bulk density. Based on these parameters, a geometric design of the hopper was developed using calculations according to Rankine's and Jansen's theories. The flow rates of the abrasive during the discharge process were experimentally verified on a model device. The result of the thesis is a proposal of a reliable dosing system that contributes to smooth abrasive flow, increased operational efficiency, and extended service life of blasting equipment.