| 摘要 |
PURPOSE:To maintain accuracy and safety and to make the reduction in cooling time possible by conducting reaction tubes for reduction tests to the prescribed cooling position on the outside of a furnace through the open part of the furnace in an open state and cooling the tubes by blasting. CONSTITUTION:A roller 8 for conveyance is mounted in the upper part of a hook 7 for hoisting of reaction tubes for reduction tests located at the center of a vertical split type heating furnace 5 assuming an upright cylindrical shape, and with said roller as a starting point S, a guiding rail 6 of arbitrary length is installed in the open direction of the furnace 5 and is so constituted that the roller 8 moves along the rail 6. A stopper 10 is provided in a cooling position C, and a blasting device 11 toward the reaction tube 1 in the position C is provided. Thus the tube 1 hoisted at the starting point S of the rail 6 is contained in the furnace 6 where the tube is subjected to a reduction test. After the reduction the furnace 5 is split, and the tube is transferred to the outside of the furnace along the rail 6. The tube is stopped by the stopper 10, then the tube is cooled by the blasting from the device 11. |
