Sughrue, Mion, Zinn, Macpeak & Seas, PLLC
Method and apparatus for repairing a coke oven
 A repairing method using a lance for repairing an oven wall surface of a coke oven comprises the steps of arranging a distance sensor at a top end of the lance, quantitatively measuring a depth of a worn or a damaged area by the distance sensor, and blowing a repairing material from a repairing nozzle to the worn area in accordance with a measurement result to thereby repair the worn area. The lance used in this repairing method has a multistage structure having a polygonal cross section and is extendable. With this structure, the oven wall surface can be scanned in a linear fashion or along a plane. If the top end of the lance is movable in accordance with a basic motion pattern and/or a travelling pattern, it is possible to readily repair a repair range having a complicated shape. 
Sumitomo Heavy Industries, Ltd. Sumitomo Metal Industries, Ltd. Kansai Netukagaku Kabushiki Kaisha NKK Corporation Kawasaki Steel Corporation
Y C Y
Y10T C10B Y10T
additional inventional additional
Makoto Hideaki Tetsuro Toshio Hidekuni Ryuzo Shunji Shigeru Keiji Keizi Hideki Tsutomu Hiroyuki Terutsune Tamotsu
Numazawa Morimoto Uchida Kondo Ito Moritani Horinouchi Yamada Matsuda Kamegawa Ohhira Matsuno Shiraishi Nishio Takahashi