发明名称 |
MELTING FURNACE |
摘要 |
PROBLEM TO BE SOLVED: To shorten a melting time. SOLUTION: A movable wall 3 making the height of the furnace ceiling variable according to an advance of melting is provided in a furnace body 1. The movable wall 3 is moved vertically according to the state of the advance of melting of melting materials so that the effective capacity of a combustion chamber may not be enlarged. By keeping a space between the solid surface of the melting materials and the movable wall 3 to be prescribed practically without giving a large variation thereto, the average velocity of passing of high-temperature gas through an in-furnace section is maintained at least or increased as occasion demands and also geometric factors of the surface of the melting materials and a solid reflecting surface (furnace ceiling surface) are increased so that the heat of radiation reaching the melting materials be increased. Thereby lowering of a heating speed is prevented.
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申请公布号 |
JP2000356469(A) |
申请公布日期 |
2000.12.26 |
申请号 |
JP19990166856 |
申请日期 |
1999.06.14 |
申请人 |
NIPPON FURNACE KOGYO KAISHA LTD;ROZAI KOGYO KAISHA LTD |
发明人 |
HASEGAWA TOSHIAKI;KATSUSHIMA HIROKAZU;SHIMOMURA HIROKIYO |
分类号 |
C22B9/16;C22B21/06;F27B3/06;F27D1/18;F27D7/02;F27D17/00;(IPC1-7):F27B3/06 |
主分类号 |
C22B9/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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