| 摘要 |
PURPOSE:To provide a closed metallic burner through suppression of the increase of the temperature of an alkali metal by a method wherein the one end of the alkali metal is supported by the tip parts with a thin section of inner and outer cylinder bodies, an oxidizing agent injection nozzle is welded to the hole of an annular flange to mount it thereto, and the annular flange to which the oxidizing agent nozzle is welded is welded to the whole peripheral surfaces of the rear end parts of the inner and outer cylinder bodies. CONSTITUTION:A molten alkali metal 3 is inserted through an opening of the one end part, formed with water tubes 1a and 1b, in a burner body 2. A longitudinal hole is formed in a central part by means of a core, and after the alkali metal is coagulated, a preheating agent 4 is inserted in the hole. Inner and outer bodies 2-1 and 2-2, the tip parts of which has thickness lower than that of the base parts thereof are inserted in the burner body 2 in a state to make contact with the inner peripheral surface of a water tube 1a and the outer peripheral surface of a water tube 1b. The parts, having a thin section on the inner side, of the inner and outer cylinder bodies 2-1 and 2-2 are brought into contact with the one end of the alkali metal for supporting. An annular weld flange 1 to which the given number of oxidizing agent injection nozzles 7 are welded and mounted is welded to the opening part of a rear end, formed with the inner and outer cylinder bodies 2-1 and 2-2, throughout whole peripheral surfaces A and B to close the burner body 2. |
