| 摘要 |
PROBLEM TO BE SOLVED: To provide a stave cooler for a blast furnace, which absorbs a stress originating from a difference of thermal expansions between a main body of a stave and a steel shell, inhibits a fatigue fracture from occurring at a welded part of a pipe for supplying and draining water and a welded part at a gas sealing section, and has a highly reliable structure which can be durable to a long period of use. SOLUTION: The stave cooler for the blast furnace has a pipe 2 for supplying and draining water, which is welded to the main body 1 of the stave made from copper or a copper alloy, and makes the main body 1 fixed to the steel shell 6 of the blast furnace with a plurality of steel bolts 8. The main body 1 of the stave has a protection pipe 3 welded so as to wrap the pipe 2 for supplying and draining water; and has a coaming box 4 installed on the steel shell face in the periphery of an open end formed on the steel shell 6 so as to surround the protection pipe 3. One end of a side plate of the coaming box 4 is welded to the steel shell 6, and the other end of the side plate is welded to the peripheral surface of the protection pipe 3 through a seal plate 5. COPYRIGHT: (C)2008,JPO&INPIT
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