JPH065404Y2 - Support structure for ore deposits - Google Patents
Support structure for ore depositsInfo
- Publication number
- JPH065404Y2 JPH065404Y2 JP10792288U JP10792288U JPH065404Y2 JP H065404 Y2 JPH065404 Y2 JP H065404Y2 JP 10792288 U JP10792288 U JP 10792288U JP 10792288 U JP10792288 U JP 10792288U JP H065404 Y2 JPH065404 Y2 JP H065404Y2
- Authority
- JP
- Japan
- Prior art keywords
- ore
- bolt
- metal
- furnace
- receiving material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 40
- 239000002184 metal Substances 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 229910052742 iron Inorganic materials 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 19
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Blast Furnaces (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、高炉のような竪型還元炉の鉱石受金物の支持
構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a support structure for an ore deposit in a vertical reduction furnace such as a blast furnace.
一般に高炉のような竪型還元炉の炉口部には、装入原料
の流れ方向を調整して装入原料の炉内への分布を均一に
させるためと、鉄皮の保護のために鉱石受金物が設置さ
れている。従来の鉱石受金物１ａの支持構造を第５図に
示す。第５図（ａ）は平面の断面図、第５図（ｂ）は縦
断面図、第５図（ｃ）は鉱石受金物１ａ単体の側面図で
ある。第５図から分るように、 Ｈ型形状の構造物を鉱石受金物１ａの平面配列と同数
だけ垂直方向高炉鉄皮５に溶接またはリベットによって
固定している。Generally, at the furnace mouth of a vertical reduction furnace such as a blast furnace, ore is used to adjust the flow direction of the charging raw material to make the distribution of the charging raw material uniform and to protect the iron shell. Receivables are installed. FIG. 5 shows a conventional support structure for the ore-receiver 1a. FIG. 5 (a) is a plane cross-sectional view, FIG. 5 (b) is a vertical cross-sectional view, and FIG. 5 (c) is a side view of the ore-receiving material 1a alone. As can be seen from FIG. 5, H-shaped structures are fixed to the vertical blast furnace shell 5 by welding or rivets in the same number as that of the plane arrangement of the ore metal receiver 1a.
鉱石受金物１ａは鉄皮５の周上の２本のＨ型構造物を
またぐように据付けられている。The ore deposit 1a is installed so as to straddle two H-shaped structures on the circumference of the iron shell 5.
相互の鉱石受金物１ａをより強固に固定するために相
互にボルトで固定している。The ore deposits 1a are fixed to each other with bolts in order to more firmly fix them.
鉱石受金物１ａの最下面に、鉱石受金物１ａの落下防
止用の鉱石受プレート８が設けられている。An ore receiving plate 8 for preventing the ore receiving material 1a from falling is provided on the lowermost surface of the ore receiving material 1a.
上述したような従来技術の鉱石受金物の支持構造には、
次の問題があった。In the support structure of the ore receiving material of the prior art as described above,
I had the following problem.
高炉の操業年数の経過と共に鉱石受プレートが熱変形
し、垂直方向支持機能が低下する。そのために鉱石受金
物が下部へ脱落する事故が発生する。The ore receiving plate undergoes thermal deformation with the lapse of the blast furnace operation years, and the vertical support function deteriorates. As a result, an ore deposit will fall off to the bottom.
鉱石受金物自体も熱影響を受けて一部破損または炉内
部にせり出して脱落する。The ore receiving material itself is also affected by heat and is partially damaged or protrudes into the furnace and falls off.
鉱石受金物が相互に固定されているため、熱影響を複
雑な形で受ける。Because the ore deposits are fixed to each other, they are affected by heat in a complicated manner.
破損または落下しかかった鉱石受金物は相互にボルト
締めおよびＨ型構造にまたがっているので、取替え交換
が困難である。Damaged or falling ore deposits are bolted to each other and straddle the H-shaped structure, so replacement and replacement is difficult.
また、高炉の改修時において短期間に鉱石受金物を取
り除くことが困難である。すなわち炉内に入り１つ１つ
取り除く手段が採られており、炉内工事を必要とする。Moreover, it is difficult to remove the ore deposit in a short period of time when the blast furnace is being repaired. In other words, the means for entering the furnace and removing them one by one requires the work inside the furnace.
高炉建設時において、その構造上あらかじめ鉄皮に固
定して、高炉鉄皮と一体搬入、据え付けることが困難で
ある。During construction of the blast furnace, it is difficult to fix it to the iron shell in advance because of its structure, and to carry in and install it integrally with the blast furnace iron shell.
本考案はこれらの問題点を解決するために提案されたも
のであり、取替、補修が容易でかつ、長寿命を保持する
鉱石受金物の支持構造を提供することを課題とするもの
である。The present invention has been proposed to solve these problems, and an object of the present invention is to provide a support structure for an ore receiving material that is easy to replace and repair and that has a long life. .
本考案は上述の問題点を解決するもので、竪型還元炉口
部の鉱石受金物の支持構造に適用され、次の技術手段を
採った。すなわち、 鉄皮に固設され鉱石受金物を支持する支持ピースと、 鉱石受金物の背面に設けられ支持ピースと掛合する掛
合部と、 鉄皮の外側からナットにより鉱石受金物を鉄皮に固着
する複数のボルトと からなり、 ボルトはＴ字形頭部を有し、かつ、鉱石受金物の鉱石受
金物とボルト頭部の係止部には、ボルト頭部が挿通自在
な長孔と、ボルトを９０度回転させたときボルトの反力
を支持する支持部とを設けると共に該ボルト頭部の９０
度以上の回り止め係止片を設けた。The present invention solves the above-mentioned problems, and is applied to a support structure for an ore deposit at the mouth of a vertical reduction furnace, and has adopted the following technical means. That is, a support piece that is fixed to the iron shell and supports the ore receiving material, a hooking portion that is provided on the back surface of the ore receiving material and that engages with the supporting piece, and the ore receiving material is fixed to the iron shell from the outside of the iron shell with a nut. The bolt has a T-shaped head, and the ore receiving material of the ore receiving material and the locking portion of the bolt head have a long hole through which the bolt head can be inserted, and the bolt. And a support portion for supporting the reaction force of the bolt when the bolt is rotated by 90 degrees,
A locking piece more than once is provided.
〔作用〕 従来の鉱石受プレートに替えて、各鉱石受金物毎に支
持ピースと掛合部を設けた。この支持ピースは鉄皮に溶
接固定されているため熱影響を受けず、また鉱石受金物
から伝達される垂直荷重が剪断力に転化されるために力
学的構造的に安定である。[Operation] Instead of the conventional ore receiving plate, a supporting piece and a hooking portion are provided for each ore receiving material. Since this support piece is welded and fixed to the iron shell, it is not affected by heat, and because the vertical load transmitted from the ore receiving material is converted into shearing force, it is mechanically stable.
鉱石受の原料衝突面すなわち炉内側は熱影響を受ける
が、支持構造部は鉄皮近傍であり、熱影響は小さい。The raw material impingement surface of the ore receiver, that is, the inside of the furnace is affected by heat, but the supporting structure is near the iron shell, so the heat effect is small.
各鉱石受金物は独立に支持構造を有しているため、力
学的に単純であり、かつ任意の鉱石受金物を容易に取替
えることが可能である。Since each ore deposit has an independent supporting structure, it is mechanically simple and any ore deposit can be easily replaced.
不要となった鉱石受金物は、鉄皮の外部から取付けボ
ルトを外すことにより、容易に炉内に突き落し溶融させ
ることができる。The unnecessary ore deposit can be easily pushed down into the furnace and melted by removing the mounting bolts from the outside of the iron shell.
第１図〜第４図は本考案の一実施例の説明図であり、第
１図は平面図、第２図は側面の断面図、第３図は支持ピ
ースによる鉱石受金物の支持状況図、第４図はボルト頭
部の回り止め構造を示している。なお、第４図（ａ）は
第２図の部分拡大図、第４図（ｂ）は第４図（ａ）のＡ
−Ａ矢視図である。１は鉱石受金物であって通常耐熱、
耐摩耗性合金を用いて製造される。鉱石受金物（以下金
物と呼ぶ）１は鉄皮５に強固に固定されるために次の構
造を有する。金物１は自重（垂直力）を支持するための
座金３を背面に備え、この座金３の荷重は支持ピース２
に伝達される。支持ピース２は鉄皮５に溶接または他の
方法で固定されている。支持ピース２は鉄皮５の内壁に
沿ってリング状に構成してもよいし、また、１個の金物
１に対して、支持ピース２を２個あるいは１個配しても
よい。金物１が脱落または炉内に押し出されることを防
止するためボルト４で金物１と鉄皮５を締結する。ボル
ト４は炉外から締付けられるよう第４図（ａ）および第
４図（ｂ）に示すように、ボルト４の支持部として座金
３ａを設け、座金３ａにはボルト４の頭部が挿通自在な
長孔９を設けた。従って、ボルト４の頭部を長孔９に挿
通して９０度回転させればボルト４は金物１と係止させ
ることができる。さらにボルト４の頭部が９０度以上回
転しないように回り止め座金３ｂをボルト１本当り２箇
所設けている。なお、ボルト取付部の鉄皮部分から炉内
ガスの吹き出しを防ぐ目的でガスシール金物６を取付
け、ボルト４をセットした後ガスケシール金物６を鉄皮
５にガスシール溶接している（第２図）。1 to 4 are explanatory views of an embodiment of the present invention. FIG. 1 is a plan view, FIG. 2 is a side sectional view, and FIG. 3 is a support situation diagram of an ore receiving object by a support piece. , FIG. 4 shows a structure for preventing the bolt head from rotating. Note that FIG. 4 (a) is a partially enlarged view of FIG. 2, and FIG. 4 (b) is A of FIG. 4 (a).
FIG. 1 is an ore deposit, which is usually heat resistant,
Manufactured using wear resistant alloys. The ore receiving material (hereinafter referred to as metal) 1 has the following structure because it is firmly fixed to the iron shell 5. The metal fitting 1 is provided with a washer 3 for supporting its own weight (vertical force) on the back surface, and the load of this washer 3 is the supporting piece 2
Be transmitted to. The support piece 2 is welded or otherwise fixed to the steel shell 5. The support piece 2 may be formed in a ring shape along the inner wall of the iron skin 5, or two or one support piece 2 may be arranged for one metal piece 1. The metal 1 and the iron shell 5 are fastened with bolts 4 in order to prevent the metal 1 from falling off or being pushed out into the furnace. As shown in FIGS. 4 (a) and 4 (b), the bolt 4 is provided with a washer 3a as a supporting portion of the bolt 4 so that the bolt 4 can be tightened from outside the furnace, and the head of the bolt 4 can be inserted into the washer 3a. The long hole 9 is provided. Therefore, if the head of the bolt 4 is inserted into the elongated hole 9 and rotated 90 degrees, the bolt 4 can be locked with the metal object 1. Further, two rotation stopper washers 3b are provided for each bolt so that the head of the bolt 4 does not rotate more than 90 degrees. In order to prevent the gas in the furnace from being blown out from the iron shell portion of the bolt mounting portion, a gas seal metal piece 6 is attached, and after setting the bolt 4, the gasket metal piece 6 is gas seal welded to the iron shell 5 (Fig. 2). ).
金物１は通常高炉の炉口部に設けられ、その数は円周２
０〜６０列、４〜７段である。本考案の機能を十分に発
揮させるためには、炉内ガスの熱影響を防止する必要が
ある。従って金物１の内部、金物１と金物１の隙間なら
びに鉄皮５と金物１の空間には構造物としての耐熱性向
上と炉内ガス通過を防ぐため、耐火キャスタブル７を充
填している。さらに第２図に示すように金物１の耐久性
を高める目的で、金物１間に冷却盤１０を挿入してもよ
い。The hardware 1 is usually installed at the furnace opening of the blast furnace, and the number of the hardware 1 is 2 circumferences.
0 to 60 columns, 4 to 7 rows. In order to make full use of the function of the present invention, it is necessary to prevent the thermal influence of the gas in the furnace. Therefore, the refractory castables 7 are filled in the interior of the metal 1, the gap between the metal 1 and the space between the iron shell 5 and the metal 1 in order to improve the heat resistance of the structure and prevent the passage of gas in the furnace. Further, as shown in FIG. 2, a cooling board 10 may be inserted between the metal pieces 1 for the purpose of enhancing the durability of the metal pieces 1.
なお、本考案では座金３を金物１の背面に凸に設けたの
で、金物１の背面の４隅には第２図に示すように座金３
ｃを設け、鉄皮５への取付けの安定化を図っている。In the present invention, since the washer 3 is provided on the back surface of the metal piece 1 in a convex shape, the washer 3 is provided at the four corners of the back surface of the metal piece 1 as shown in FIG.
c is provided to stabilize the attachment to the iron skin 5.
本考案は次のような優れた効果を奏する。 The present invention has the following excellent effects.
(1)鉱石受金物の寿命が延長され、また鉱石受金物の取
替が可能なことから、高炉の長寿命化ならびに高炉のメ
ンテナンス費の削減を図ることができる。(1) Since the life of the ore deposit is extended and the ore deposit can be replaced, the life of the blast furnace can be extended and the maintenance cost of the blast furnace can be reduced.
(2)鉱石受金物の解体が炉外から容易に実施できるの
で、高炉の短期間改修ならびに改修工数削減が可能とな
る。(2) Since the ore receiving material can be easily disassembled from outside the furnace, it is possible to repair the blast furnace for a short period and reduce the repair man-hours.
(3)鉄皮と鉱石受金物は炉外で予めセットした状態で一
体でハンドリングでき、据付け時間短縮と工数削減が可
能となる。(3) The iron shell and the ore receiving material can be handled as one unit in a state of being set outside the furnace in advance, and the installation time and man-hours can be reduced.
(4)メンテナンスや取替、補修が容易なため、常に良好
な炉口プロフィルを維持でき、結果として安定した炉内
分布の補償となって、安定操業に寄与する。(4) Since maintenance, replacement, and repair are easy, a good throat profile can be maintained at all times, and as a result, stable distribution in the furnace is compensated, contributing to stable operation.
第１図〜第４図は本考案の一実施例の説明図であり、第
１図は平面図、第２図は側面の断面図、第３図は支持ピ
ースによる鉱石受金物の支持状況図、第４図はボルト頭
部の回り止め構造を示し、第４図（ａ）は第２図の部分
拡大図、第４図（ｂ）は第４図（ａ）のＡ−Ａ矢視図で
ある。第５図は従来例の説明図である。 １，１ａ……鉱石受金物、２……支持ピース ３，３ａ，３ｂ，３ｃ……座金 ４……ボルト、５……鉄皮 ６……ガスシール金物、７……キャスタブル ８……鉱石受プレート、９……長孔 １０……冷却盤1 to 4 are explanatory views of an embodiment of the present invention. FIG. 1 is a plan view, FIG. 2 is a side sectional view, and FIG. 3 is a support situation diagram of an ore receiving object by a support piece. 4 shows a structure for preventing the bolt head from rotating, FIG. 4 (a) is a partially enlarged view of FIG. 2, and FIG. 4 (b) is a view on arrow AA of FIG. 4 (a). Is. FIG. 5 is an explanatory diagram of a conventional example. 1, 1a ... Ore receiving metal, 2 ... Supporting piece 3, 3a, 3b, 3c ... Washer 4 ... Bolt, 5 ... Iron shell 6 ... Gas seal metal, 7 ... Castable 8 ... Ore receiving Plate, 9 ... long hole 10 ... cooling board
───────────────────────────────────────────────────── フロントページの続き (72)考案者 小林 孝一 東京都千代田区内幸町２丁目２番３号 川 崎製鉄株式会社東京本社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Koichi Kobayashi 2-3 2-3 Uchisaiwaicho, Chiyoda-ku, Tokyo Kawasaki Steel Co., Ltd. Tokyo head office
Claims (1)
おいて、 鉄皮に固設され鉱石受金物を支持する支持ピースと、該
鉱石受金物の背面に設けられ該支持ピースと掛合する掛
合部と、鉄皮の外側からナットにより該鉱石受金物を鉄
皮に固着する複数のボルトとからなり、該ボルトはＴ字
形頭部を有し、かつ、該鉱石受金物の該鉱石受金物と該
ボルト頭部の係止部には、該ボルト頭部が挿通自在な長
孔と、該ボルトを９０度回転させたとき該ボルトの反力
を支持する支持部とを設けると共に該ボルト頭部の９０
度以上の回り止め係止片を設けたことを特徴とする竪型
炉の鉱石受金物の支持構造。1. A support structure for supporting an ore metal receiving object in a vertical reduction furnace mouth part, and a support piece fixed to an iron skin for supporting the ore metal receiving material, and a support piece provided on the back surface of the ore metal receiving material and engaged with the support piece. And a plurality of bolts for fixing the ore-metal receiving object to the iron-skin with nuts from the outside of the iron-skin, the bolts having a T-shaped head, and the ore-receiving part of the ore-gold receiving material. The locking portion between the metal and the bolt head is provided with a long hole through which the bolt head can be inserted, and a support portion for supporting the reaction force of the bolt when the bolt is rotated 90 degrees, and the bolt. 90 of the head
A support structure for an ore-bearing object of an upright furnace, which is provided with a detent locking piece more than a certain degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10792288U JPH065404Y2 (en) | 1988-08-18 | 1988-08-18 | Support structure for ore deposits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10792288U JPH065404Y2 (en) | 1988-08-18 | 1988-08-18 | Support structure for ore deposits |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0229445U JPH0229445U (en) | 1990-02-26 |
| JPH065404Y2 true JPH065404Y2 (en) | 1994-02-09 |
Family
ID=31342776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10792288U Expired - Lifetime JPH065404Y2 (en) | 1988-08-18 | 1988-08-18 | Support structure for ore deposits |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH065404Y2 (en) |
-
1988
- 1988-08-18 JP JP10792288U patent/JPH065404Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0229445U (en) | 1990-02-26 |
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