APPARATUS FOR REFINING MOLTEN STEEL

Japanese Patent JP3867683

B2

PROBLEM TO BE SOLVED: To provide a molten steel refining apparatus in which the sticking of slag and spattered molten steel onto a snorkel is restrained and the productivity can be improved.
SOLUTION: This refining apparatus is for separately performing an operation using the snorkel 5 and an operation using no snorkel. This apparatus is provided with a vessel carrier 1 which can shift while loading a ladle 3 between a molten steel supplying position and an operating position, a dust collecting hood 4 and an operation carriage 6 which hangs down the dust collecting hood 4 and the snorkel 5 to separated positions, respectively so as to be ascendable/descendable, and can be shifted at the upper part of the vessel carriage 1 so as to match both hang-down positions to the operating positions, respectively. At both hang-down positions of the operation carriage 6, a charging hole 7 for ferro-alloy, is arranged. At the upper parts of the operation carriage at the operating positions, a charging facility for ferro-alloy, an immersion lance 9 for blowing gas for stirring the molten steel 2 and Ca alloy powder, and its ascending/descending device 11, a lance 13 for blowing oxygen, a lance 15 with which at least one of a temperature measurement, sampling and a dissolved oxygen measurement can be performed, and its ascending/descending device 16, are arranged.

Fujiwara Michijo
Shun Tanioku
Noriaki Yamada

JP2003164240A

January 10, 2007

June 09, 2003

Click for automatic bibliography generation  

SUMITOMO METAL INDUSTRIES,LTD.

B22D41/00; C21C7/04; B22D1/00; B22D2/00; B22D41/12; B22D43/00; C21C7/072; F27D17/00; (IPC1-7): C21C7/04; B22D1/00; B22D2/00; B22D41/00; B22D41/12; B22D43/00; C21C7/072; F27D17/00

JP63047328A
JP62017117A
JP8120319A
JP56087636A

Mizogami Mitsuyoshi
Tetsuya Mizogami
Yoshinori Iwahara

Previous Patent: VEHICULAR STEERING DEVICE

Next Patent: DRIVE ASSIST DEVICE FOR VEHICLE AND VEHICLE HAVING DRIVE ASSIST DEVICE FOR VEHICLE