DEVICE FOR THERMOMECHANICAL DRILLING OF BORE-HOLES Russian patent published in 1998 - IPC

FIELD: mining industry. SUBSTANCE: this relates to devices intended for drilling and reaming bore-holes in hard rock. Reduced power consumption for producing compressed air used as oxidizing agent in flame-jet burner of drilling string and being one of main components in purging of bore-holes is achieved by device for thermomechanical drilling having drilling member in the form of drilling string. Mounted on end of drilling string are rock-crushing members and flame-jet burner. Connected to burner are water supply line, fuel supply line, line for air delivery through heat exchanger located in tank and adsorber via delivery pipe connection from compressor which is connected by means of suction pipe union with filter made in the form of resonator and located on compressor. Also provided are body with bottom of cone shape and narrowing nozzle, deflector movably attached to filter body by means of hinge, float-type condensate remover, inner chambers which communicate respectively with suction pipe connection and narrowing nozzle, link which by means of lever connects condensate remover and deflector. EFFECT: higher efficiency. 2 dwg