Tool for crushing coke

Decoking tool including:

• a casing which, in an operational state is connected to a drill rod being adapted for conducting a flow of water under high pressure in excess of 100 bar into the casing;
• at least one cutting nozzle for cutting of coke and at least one drill nozzle for drilling of coke;
• each said at least one cutting nozzle and each said drill nozzle being arranged in the casing such that the high pressure water flow being supplied to the cutting nozzles and the drill nozzles is ejected from said nozzles in the form of high pressure jets for cutting and drilling of coke;
• at least one valve for controlling a direction of said flow of water flowing through the drill rod and the casing through the at least one cutting nozzle and through the at least one drill nozzle, said at least one valve being positioned as a diverter in an entrance of said tool;
• at least two flow passages within the casing;
• each said flow passage respectively forming closed-off regions and being associated individually with a feed aperture and each said flow passage extending respectively between the associated feed aperture and one of the cutting nozzle and the drill nozzle;
• the at least one valve closing and opening the feed apertures and being further provided above both the cutting nozzle and the drill nozzle in a region of the feed apertures;
• and
• the feed apertures being essentially in an orientation normal to the direction of flow of the water flowing through the drilling rod and the casing,
• wherein in the operational state of cutting, the feed aperture to the drilling nozzle is completely closed by the at least one valve and in the operational state of drilling, the feed aperture to the cutting nozzle is completely closed by the at least one valve,
• wherein said at least one valve includes a valve body configured for closing one of the feed apertures depending on a respective operational state, and
• wherein said valve body is in engagement with means for guiding said valve body.

Tool for crushing coke, including

• a casing, which, in an operational state is connected to a drill rod;
• at least one cutting nozzle for cutting of coke and at least one drill nozzle for drilling of coke;
• at least one valve for controlling a direction of flow of water flowing through the drill rod and the casing through the at least one cutting nozzle and through the at least one drill nozzle, said at least one valve being positioned as a diverter in an entrance of said tool;
• at least two flow passages within the casing;
• each said flow passage respectively forming closed-off regions and being associated individually with a feed aperture and each said flow passage extending respectively between the associated feed aperture and one of the cutting nozzle and the drill nozzle;
• the at least one valve closing and opening the feed apertures and being further provided above both the cutting nozzle and the drill nozzle in a region of the feed apertures;
• and
• the feed apertures being essentially in an orientation normal to the direction of flow of the water flowing through the drilling rod and the casing,
• wherein in the operational state of cutting, the feed aperture to the drilling nozzle is completely closed by the at least one valve and in the operational state of drilling, the feed aperture to the cutting nozzle is completely closed by the at least one valve,
• wherein said at least one valve includes a valve body configured for closing one of the feed apertures depending on a respective operational state,
• wherein said valve body is in engagement with means for guiding same,
• wherein the valve body is of symmetrical configuration,
• wherein said at least one valve is in engagement with a device for operating the at least one valve for changing from at least one of cutting to drilling and drilling to cutting, and
• further comprising at least two nozzles for cutting and at least two nozzles for drilling, each of the cutting and drilling nozzles being fitted in bores of the casing and being respectively connected by way of a flow passage to the respective feed apertures arranged normal to the drill rod and the feed apertures to the cutting nozzles being closed, whenever the tool is in the operating state of drilling and the feed apertures to the drilling nozzles being closed, whenever the tool is in the operational state of cutting.