CRUSHER

摘要

PURPOSE: To enhance crushing treatment capacity by determining the optimum shape of an acceleration pipe depending on the environmental condition of crushing. CONSTITUTION: The compressed air supplied from a nozzle 2 is accelerated by an acceleration pipe 3 to be converted to a jet stream and an article to be crushed is supplied into the jet stream from a supply port 1 and allowed to impinge against a barrier member along with the jet stream to be crushed. The ratio or caliber ratio of the cross-sectional area 18 at the position of the throat 16 in a jet nozzle 3 to the cross-sectional area 19 at the position 17 of the supply port is determined from the relation between the pressure ratio and cross-sectional area ratio or caliber ratio corresponding to the respective nozzle positions due to a unidimensional rubber nozzle theory in ideal gas.