COKE CRUSHER Russian patent published in 2012 - IPC C10B33/00 E21B7/18 

FIELD: process engineering.

SUBSTANCE: invention relates to grinding tools. proposed tool comprises body to be secured on boring bar that houses cutting nozzle, water drilling nozzle and water feed switch. Said switch comprises linear switching element, drive device and control device arranged to revolve about valve lengthwise axis depending upon water pressure variation, driven by said drive device for switching valve device for water distribution and further transfer. Note here that, depending upon control device angular position, water flow to drilling nozzle or cutting nozzle, is either open or closed. Said switching device is arranged in tool body above the zone of water inflow separation via through channel to said nozzles. To turn switching device through required angle, switching device has switching element engaged with means to convert its linear motion in rotation of control device.

EFFECT: fast emptying of drum filled with coke, and changing over from drilling to cutting.

18 cl, 17 dwg