INJECTING UNIT FOR INJECTION OF QUICK-HARDENING COMPOUNDS INTO BORE-HOLE Russian patent published in 1999 - IPC

FIELD: mining industry. SUBSTANCE: this unit can be used in devices for installing anchor support. Injecting unit has operating cylinder with piston and vessel with pressure pipe union. Operating cylinder of injecting unit is made movable and with open ends. Cylinder is located in vessel with pressure pipe union and is oriented coaxially relative to pressure pipe union so as to ensure contact between end of piston part of operating cylinder and pressure pipe union of vessel. Aforesaid embodiment of injecting unit ensures single-stage process of filling bore-hole due to continuous delivery of quick-hardening mix by injecting unit. In addition, several bore-holes can be filled with mix without recharging of injecting unit. Unit is of simplified design and improved operating reliability. EFFECT: higher efficiency. 2 dwg