JPS5964958U

JPS5964958U - Steelmaking sublance

Info

Publication number: JPS5964958U
Application number: JP16295282U
Authority: JP
Inventors: 手塚　栄
Original assignee: 川崎製鉄株式会社
Priority date: 1982-10-26
Filing date: 1982-10-26
Publication date: 1984-04-28

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は転炉製鋼に於けるサブランスの使用態様の説明
図、第２図ａならびにｂは従来例の各サブランスの斜視
図、第３図は本考案の一つの実施例に係るサブランスの
斜視図、第４図はそのサブランスの冷却水通路の一例の
斜視図である。符号１・・・・・・転炉、２・・・・・・溶鋼、３・・
・・・・吹錬酸素ランス、４・・・・・・従来例のサブ
ランス、４ａ・・・・・・外筒、４ｂ・・・・・・内筒
、４Ｃ・・・・・・リブ、５・・・・・・底吹用プラグ
、１０・・・・・・螺旋状冷却水通路、１１・・・・・
・内筒、１２・・・・・・外筒、１３・・・・・・リブ
、１４・・・・・・入口、１５・・・・・・出口。Figure 1 is an explanatory diagram of how sub-lances are used in converter steelmaking, Figures 2 a and b are perspective views of conventional sub-lances, and Figure 3 is a perspective view of a sub-lance according to an embodiment of the present invention. FIG. 4 is a perspective view of an example of the cooling water passage of the sublance. Code 1... Converter, 2... Molten steel, 3...
... Blowing oxygen lance, 4 ... Conventional sub-lance, 4a ... Outer cylinder, 4b ... Inner cylinder, 4C ... Rib, 5...Bottom blowing plug, 10...Spiral cooling water passage, 11...
- Inner cylinder, 12... Outer cylinder, 13... Rib, 14... Inlet, 15... Outlet.

Claims

[Scope of utility model registration request]

A steelmaking sub-lance having at least a double tube consisting of an inner cylinder and an outer cylinder, characterized in that the outer peripheral cooling water passage between the inner cylinder and the outer cylinder is a spiral passage with ribs arranged spirally on the outside of the inner cylinder. A sub-lance for steelmaking.