JPS641400U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案の抽出孔の基本構造を示す斜
視図である。第２図Ａは中空スリーブ煉瓦を二重
構造とした抽出孔を示す斜視図、同図Ｂはガス噴
射用細管のガス噴出口の抽出孔の内面に開口させ
た抽出孔を一部破断して示す斜視図である。第３
図はガス噴射用細管へのガスの供給手段の他の実
施態様を示す図である。第４図はこの考案を転炉
に適用した場合の実施態様を示す概略図である。
第５図は従来の溶融金属容器による溶融金属の抽
出時において、溶融金属流に浴面浮上スラグが巻
込まれて流出する状態を示す説明図である。第６
図は同じく従来の溶融金属容器の傾動中に浮上ス
ラグが抽出孔より流出する状態を示す説明図であ
る。 １…スリーブ煉瓦、１―１…内筒、１―２…外
筒、２…抽出孔、３…ガス噴射用細管、４…ヘツ
ダ部、５…集合管、４―１…集合溝、６…ガス供
給管。 FIG. 1 is a perspective view showing the basic structure of the extraction hole of this invention. Figure 2A is a perspective view showing an extraction hole with a double structure made of hollow sleeve bricks, and Figure 2B is a partially cutaway view of the extraction hole opened on the inner surface of the extraction hole of the gas outlet of the gas injection thin tube. FIG. Third
The figure shows another embodiment of the means for supplying gas to the gas injection thin tube. FIG. 4 is a schematic diagram showing an embodiment in which this invention is applied to a converter.
FIG. 5 is an explanatory view showing a state in which slag floating on the bath surface is caught in the molten metal flow and flows out when molten metal is extracted using a conventional molten metal container. 6th
The figure is also an explanatory view showing a state in which floating slag flows out from an extraction hole during tilting of a conventional molten metal container. 1...Sleeve brick, 1-1...Inner tube, 1-2...Outer tube, 2...Extraction hole, 3...Gas injection thin tube, 4...Header section, 5...Collecting pipe, 4-1...Collecting groove, 6... Gas supply pipe.

Claims (1)

【実用新案登録請求の範囲】 １ 中空の抽出孔スリーブ煉瓦の円周上に多数の
細管をその一端が溶融金属容器内側に開口するご
とく孔軸と平行に埋設し、各細管よりガスを容器
内に噴出させる構造となしたことを特徴とする溶
融金属容器の抽出孔。 ２ 中空のスリーブ煉瓦は内筒と外筒とからなる
二重構造の筒体で構成し、外筒にガス噴射用細管
を埋設したことを特徴とする実用新案登録請求の
範囲第１項記載の溶融金属容器の抽出孔。 ３ ガス噴射用細管のガス噴出口を抽出孔内面に
開口させたことを特徴とする実用新案登録請求の
範囲第１、２項記載の溶融金属容器の抽出孔。[Claims for Utility Model Registration] 1. A large number of thin tubes are buried on the circumference of a hollow extraction hole sleeve brick parallel to the hole axis with one end opening inside the molten metal container, and gas is drawn into the container from each thin tube. An extraction hole in a molten metal container characterized by having a structure that allows the molten metal to be ejected. 2. The hollow sleeve brick is composed of a double-structured cylindrical body consisting of an inner cylinder and an outer cylinder, and a thin tube for gas injection is embedded in the outer cylinder. Extraction hole in molten metal container. 3. The extraction hole of a molten metal container according to claims 1 and 2 of the utility model registration, characterized in that the gas injection port of the gas injection thin tube is opened on the inner surface of the extraction hole.