| 摘要 |
PROBLEM TO BE SOLVED: To provide an auto-coupler in a molten iron pretreatment cart with which after a ladle safely arrives at the cart, the quality of the molten iron is improved by performing the molten iron stirring through nitrogen gas bubbling so that at the removing slag, the time can be shortened. SOLUTION: The auto-coupler device 300 includes: a plurality of elastic members (springs 302) set in the formation surrounding plumbing 202 at the cart (200) side; a protecting tube 306 surrounding the plumbing at the cart side and the elastic members; a flange 310 positioned at the upper part side of the protecting tube and having a piercing hole 311 connected with the upper part of the plumbing at the cart side, a basic part 316 of the auto-coupler for supporting the elastic member at the lower end part of the elastic members; and an O-ring 314 of Tefron (R) quality fitted to the upper end surface of the flange. Then, in the auto-coupler device, recessed parts 318, 320 for supporting the elastic members, at the lower part of the flange and the upper part of the basic part of the auto-coupler are formed at the positions corresponding to the elastic members and the upper end part and the lower end part of the elastic members, are directly supported with the recessed parts formed at the lower part of the flange and at the upper part of the basic part of the auto-coupler, respectively. COPYRIGHT: (C)2011,JPO&INPIT |
