METHOD AND SCREEN TO CONTROL COMBUSTION RATE OF CHARGE NONMETAL POWDERS AND SOLID EXPLOSIVES

摘要

FIELD: blasting operations. ^ SUBSTANCE: method to control combustion rate of nonmetal powder charges and solid explosives by affecting the burning surface with a radiating screen, the combustion rate pressure making from 1 to 10 kgf/cm2, consists in placing a catalyst screen outside the charge and moving it towards the combustion surface. The screen to control the combustion rate of the aforesaid substances represents a porous sintered chromium oxide pack featuring a 0.4 to 0.6 m2/g specific surface area. ^ EFFECT: expanded combustion rate adjustment range. ^ 2 cl