| 摘要 |
PROBLEM TO BE SOLVED: To provide a melting furnace having a molten metal level detecting means without being influenced by a spiral recess and a furnace body burner, in the melting furnace for improving melting capacity by causing a spiral in molten metal, by arranging a shifting magnetic field generator in a material input part communicating with a furnace body by a connecting passage. SOLUTION: This melting furnace is formed by communicably arranging a material melting chamber 3 in the furnace body 1 for holding the molten metal via a first connecting passage 2, and has a material supply device 6 above the material melting chamber, and is formed by arranging the shifting magnetic field generator 7 around the material melting chamber. The melting furnace is characterized in that a level detecting chamber 5 is communicably arranged in the furnace body via a second connecting passage 4, and a partition wall 11 is suspended in the second connecting passage 4 from the ceiling up to the height reaching the lowest height of a level variable range of the molten metal, and a level detecting means 8 for detecting the liquid level height of the molten metal is provided on the level detecting chamber 5 side. A cleaning means of a molten metal surface is arranged in the level detecting chamber 5. The cleaning means is driven when a detecting result of the level detecting means 8 cannot be detected. COPYRIGHT: (C)2006,JPO&NCIPI |
