De-coking tool

US7163165B2 · kind B2 · utility

Assignee

• Ruhrpumpen GmbH · DE

Inventors

• Wolfgang Paul · Bad Schwartau, DE
• Dirk Heidemann · Schwerte, DE
• Maciej Bareikowski · Bochum, DE

Key dates

• Filing date: Jul 23, 2002
• Grant date: Jan 16, 2007
• Expiry date: Jul 23, 2022

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B08B9/0936
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A tool for disintegrating coke has a housing attached to a drill stem in operation, at least one nozzle for cutting and one nozzle for drilling of coke, and at least one valve for closing and opening the nozzles, wherein the tool is adapted to have two different operating states and wherein the at least one valve closes off the cutting nozzles in the drilling operating state, while the drilling nozzles are closed off by the at least one valve in the cutting operating state, and wherein the housing, the valve and the nozzles are adapted so that water may flow unhindered from the drill stem through the housing and the valve and through the nozzles not closed off by the valve, wherein, the nozzles to be closed, for each chosen operating state, are closed off by the balls of a ball valve. An arrangement for operating the valve is arranged above the nozzles.