JPH057228Y2 - - Google Patents
Info
- Publication number
- JPH057228Y2 JPH057228Y2 JP3989187U JP3989187U JPH057228Y2 JP H057228 Y2 JPH057228 Y2 JP H057228Y2 JP 3989187 U JP3989187 U JP 3989187U JP 3989187 U JP3989187 U JP 3989187U JP H057228 Y2 JPH057228 Y2 JP H057228Y2
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- spherical
- inner cylinder
- converter
- water
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
- 239000000498 cooling water Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
Description
【考案の詳細な説明】
［考案の目的］
（産業上の利用分野）
本考案は、製鋼用転炉の直上に設けられた水冷
ジヤケツト構造を有する転炉フードの内筒支持装
置に関するものである。[Detailed description of the invention] [Purpose of the invention] (Industrial field of application) The present invention relates to an inner cylinder support device for a converter hood having a water-cooled jacket structure and installed directly above a steelmaking converter. .
（従来の技術）
実公昭62−6114号に開示されている水冷ジヤケ
ツト構造を有する転炉フードを第２，３図につい
て説明すると、フードは内筒１と外筒２とにより
構成されて水冷ジヤケツト３を有しており、ジヤ
ケツト３の下部には給水口４及び給水ヘツダー５
が、また上部には熱水出口６が設けられている。
転炉よりの熱により加熱されてジヤケツト３内を
上昇する冷却水は、熱水出口６よりジヤケツトに
付設されて冷却水循環用管路７内に入つた後ジヤ
ケツト冷却水タンク８に至り、ジヤケツト冷却水
タンク８において水蒸気を分離して放出し、次に
冷水の補給をうけ、給水ポンプ９により加圧され
た後、給水口４より給水ヘツダー５を通りジヤケ
ツト３の下部に供給され、ジヤケツト内にて転炉
よりの熱により加熱されて再び冷却循環用管路７
に入る。(Prior Art) A converter hood having a water-cooled jacket structure disclosed in Japanese Utility Model Publication No. 62-6114 will be explained with reference to FIGS. 2 and 3. 3, and a water supply port 4 and a water supply header 5 are provided at the bottom of the jacket 3.
However, a hot water outlet 6 is also provided at the top.
The cooling water heated by the heat from the converter and rising inside the jacket 3 enters the cooling water circulation pipe 7 attached to the jacket from the hot water outlet 6, and then reaches the jacket cooling water tank 8, where it is cooled by the jacket. The water vapor is separated and released in the water tank 8, then replenished with cold water, pressurized by the water supply pump 9, and then supplied from the water supply port 4 through the water supply header 5 to the lower part of the jacket 3 and into the jacket. The cooling circulation pipe 7 is heated by the heat from the converter and cooled again.
to go into.
前記のように構成した転炉フードの内筒１は転
炉の吹錬毎に繰り返し1400〜1800℃の転炉発生ガ
スにさらされ、熱膨張収縮を繰り返す。このため
に内筒１は、転炉フードの中心に向つてふくれる
傾向が有りこれを防止するために、第４図に示す
多数の支持ボルト１０が取り付けられている。 The inner cylinder 1 of the converter hood constructed as described above is repeatedly exposed to the gas generated from the converter at 1400 to 1800° C. each time the converter is blown, and undergoes repeated thermal expansion and contraction. For this reason, the inner cylinder 1 has a tendency to bulge toward the center of the converter hood, and in order to prevent this, a large number of support bolts 10 as shown in FIG. 4 are attached.
各支持ボルト１０は外筒２の透孔１１を通して
外側へ突出させ、スラスト軸受１２の内外を軸受
止め１３，１４で支持し、ナツト１５を支持ボル
ト１０に螺合することによりスラスト軸受１２を
固定している。尚、第４図中、１６，１７は軸受
押え、１８は軸受保持器、１９は支持ボルト１０
をカバーするキヤツプである。 Each support bolt 10 projects outward through the through hole 11 of the outer cylinder 2, supports the inside and outside of the thrust bearing 12 with bearing stops 13, 14, and fixes the thrust bearing 12 by screwing the nut 15 onto the support bolt 10. are doing. In addition, in FIG. 4, 16 and 17 are bearing holders, 18 is a bearing retainer, and 19 is a support bolt 10.
It is a cap that covers
（考案が解決しようとする問題点）
前記従来の装置にあつては外筒２とナツト１５
との間にはスラスト軸受１２しか組み込まれてい
ないため、内筒１の熱膨張時、内筒１の第４図に
おけるY1，Y2，X1方向の動きは吸収できるが、
X2及びＭ方向の動きが吸収できず支持ボルト１
０の付根に疲労限度以上の応力が発生するため、
亀裂２０が発生するものと考えられる。またボル
ト亀裂、折損に至らぬまでもフード内筒に亀裂を
生じる場合があり、さらに、ボルト亀裂後の内筒
変形の進行に伴う亀裂への進転もある。(Problems to be solved by the invention) In the conventional device, the outer cylinder 2 and the nut 15
Since only the thrust bearing 12 is installed between the inner cylinder 1 and the inner cylinder 1, the movement of the inner cylinder 1 in the Y 1 , Y 2 , and X 1 directions in FIG. 4 can be absorbed during thermal expansion of the inner cylinder 1.
Support bolt 1 cannot absorb movement in the X 2 and M directions.
Because stress exceeding the fatigue limit occurs at the base of 0,
It is considered that cracks 20 occur. In addition, cracks may occur in the inner cylinder of the hood even if the bolt does not crack or break, and cracks may develop as the inner cylinder deforms after the bolt cracks.
そして、フードの内筒に亀裂を生じた場合には
水洩れによる事故の恐れがあるため、フードの溶
接修理のため、まず、ジヤケツトの水を抜き、取
り去ることも必要とされ、この間転炉操業は停止
をやむなくされる等多大の経費的損失を伴う。 Furthermore, if a crack occurs in the inner tube of the hood, there is a risk of an accident due to water leakage, so in order to repair the hood by welding, it is first necessary to drain and remove the water from the jacket, during which time the converter operation must be stopped, resulting in a huge expense loss.
そこで、本考案においては、支持ボルトをあら
ゆる方向に動けるようにして内筒及び支持ボルト
の亀裂発生を防止することができる装置を提供し
ようとするものである。 Therefore, an object of the present invention is to provide a device that can prevent the inner cylinder and the support bolt from cracking by allowing the support bolt to move in all directions.
［考案の構成］
（問題点を解決するための手段）
本考案における転炉フードの支持装置は、転炉
フードの内筒１に一端を溶接し、他端を外筒２に
透孔１１を通して外方に突出させた支持ボルト１
０にスラスト軸受１２を装着し、スラスト軸受１
２の一面に一方の球面部を有する下部球面軸受２
１ｂを設け外筒２に一方の球面部と対応する球面
部を有する上部球面軸受２１ａを固定し、スラス
ト軸受１２の他面を皿バネ２２を介してナツト１
５で締結したものである。[Structure of the invention] (Means for solving the problems) The converter hood support device in the present invention has one end welded to the inner cylinder 1 of the converter hood, and the other end passed through the through hole 11 through the outer cylinder 2. Support bolt 1 protruding outward
Attach thrust bearing 12 to
Lower spherical bearing 2 having one spherical portion on one surface of 2
1b is provided, and an upper spherical bearing 21a having a spherical surface corresponding to one spherical surface is fixed to the outer cylinder 2, and the other surface of the thrust bearing 12 is connected to the nut 1 via a disc spring 22.
It was concluded in 5.
（作用）
本考案においては、内筒１の熱膨張による支持
ボルトの動きは、水平方向への動きにおいては、
皿バネ２２により支持ボルト１０の自由運動が可
能であり、垂直方向への動きも透孔１１により可
能であり、角度の変化は上下部球面軸受２１ａ，
２１ｂの球面部の自由運動により対処するように
なつている。(Function) In the present invention, the movement of the support bolt due to thermal expansion of the inner cylinder 1 is as follows:
Free movement of the support bolt 10 is possible by the disc spring 22, and movement in the vertical direction is also possible by the through hole 11, and angle changes are made by the upper and lower spherical bearings 21a,
This is dealt with by the free movement of the spherical part 21b.
（実施例）
本実施例の構成を第１図に基いて詳細に説明す
ると、スラスト軸受１２の外筒２側に球面軸受２
１を、ナツト１５側に皿バネ２２を設けたもので
ある。(Example) To explain the configuration of this example in detail based on FIG. 1, there is a spherical bearing 2 on the outer cylinder 2 side of the thrust bearing
1, a disc spring 22 is provided on the nut 15 side.
球面軸受２１は、上部球面軸受２１ａと下部球
面軸受２１ｂとで構成されており、上部球面軸受
２１ａは一面に凸球面部２３ａを設け、反対面は
スラスト軸受１２と係合している。又、下部球面
軸受２１ｂは一面に凸球面部２３ａと密接される
凹球面部２３ｂを設けており、反対面は溶接にて
外筒２に固定している。 The spherical bearing 21 is composed of an upper spherical bearing 21a and a lower spherical bearing 21b.The upper spherical bearing 21a has a convex spherical portion 23a on one surface, and the opposite surface engages with the thrust bearing 12. Further, the lower spherical bearing 21b has a concave spherical surface portion 23b on one surface that is in close contact with the convex spherical surface portion 23a, and the opposite surface is fixed to the outer cylinder 2 by welding.
又、皿バネ２２はスラスト軸受１２を支持する
軸受止め１４とナツト１５との間に設け、その弾
発力でスラスト軸受１２を介して上下部球面軸受
２１ａ，２１ｂを密接できるようにしている。 Further, the disc spring 22 is provided between the bearing stop 14 that supports the thrust bearing 12 and the nut 15, and its elastic force allows the upper and lower spherical bearings 21a and 21b to be brought into close contact with each other via the thrust bearing 12.
尚、図中２４は通水口で水冷ジヤケツト３内の
冷却水をキヤツプ１９内に導入して支持ボルト１
０を冷却するようになつている。２５は補強板で
ある。 In the figure, reference numeral 24 denotes a water inlet, which introduces the cooling water in the water cooling jacket 3 into the cap 19 and connects it to the support bolt 1.
0 is designed to be cooled. 25 is a reinforcing plate.
その他の構成は従来と同様なので、同一符号を
付し説明を省略する。 The other configurations are the same as the conventional one, so the same reference numerals are given and the explanation will be omitted.
本実施例は前記のように構成したもので、内筒
１の熱膨張時に内筒１のY1，Y2及びX1方向への
動きは従来と同様に支持ボルト１０の自由な動き
で吸収される。そして、X2への動きは皿バネ２
２の弾発力の吸収により吸収され、Ｍ方向へは上
下部球面軸受２１ａ，２１ｂの凹凸球面部２３
ａ，２３ｂの球面運動により吸収される。 This embodiment is constructed as described above, and the movement of the inner cylinder 1 in the Y 1 , Y 2 and X 1 directions during thermal expansion of the inner cylinder 1 is absorbed by the free movement of the support bolt 10 as in the conventional case. be done. And the movement to X 2 is caused by disc spring 2
2, the uneven spherical surface portions 23 of the upper and lower spherical bearings 21a and 21b are absorbed in the M direction.
It is absorbed by the spherical motion of a and 23b.
［考案の効果］
本考案においては、上下部球面軸受と皿バネと
により内筒の熱膨張による支持ボルトのあらゆる
方向への動きを吸収することができ支持ボルト付
根に発生する内筒の亀裂、支持ボルト自身の破断
を防止することができる。その結果水洩れによる
転炉のダウンタイムの防止、亀裂修理、検査費用
の削減、フードの寿命延長を図ることができる。[Effects of the invention] In the present invention, the movement of the support bolt in all directions due to thermal expansion of the inner cylinder can be absorbed by the upper and lower spherical bearings and the disc spring. It is possible to prevent the support bolt itself from breaking. As a result, it is possible to prevent converter downtime due to water leakage, reduce crack repair and inspection costs, and extend the life of the hood.
第１図は本考案に係る転炉フードの内筒支持装
置の一実施例の断面図、第２図は従来の転炉フー
ドを示す一部を切欠いた正面図、第３図は冷却状
態を示す回路図、第４図は従来装置の断面図であ
る。
１……内筒、２……外筒、３……水冷ジヤケツ
ト、４……給水口、５……給水ヘツダー、６……
熱水出口、７……冷却水循環用管路、８……ジヤ
ケツト冷却水タンク、９……給水ポンプ、１０…
…支持ボルト、１１……透孔、１２……スラスト
軸受、１３，１４……軸受止め、１５……ナツ
ト、１６，１７……軸受押え、１８……軸受保持
器、１９……キヤツプ、２０……亀裂、２１……
球面軸受、２１ａ……上部球面軸受、２１ｂ……
下部球面軸受、２２……皿バネ、２３ａ……凸球
面部、２３ｂ……凹球面部。
Fig. 1 is a sectional view of an embodiment of the inner cylinder support device for a converter hood according to the present invention, Fig. 2 is a partially cutaway front view showing a conventional converter hood, and Fig. 3 shows the cooling state. The circuit diagram shown in FIG. 4 is a sectional view of a conventional device. 1...Inner tube, 2...Outer tube, 3...Water cooling jacket, 4...Water supply port, 5...Water supply header, 6...
Hot water outlet, 7... Cooling water circulation pipe, 8... Jacket cooling water tank, 9... Water supply pump, 10...
... Support bolt, 11 ... Through hole, 12 ... Thrust bearing, 13, 14 ... Bearing stop, 15 ... Nut, 16, 17 ... Bearing holder, 18 ... Bearing retainer, 19 ... Cap, 20 ...Crack, 21...
Spherical bearing, 21a... Upper spherical bearing, 21b...
Lower spherical bearing, 22... Disc spring, 23a... Convex spherical part, 23b... Concave spherical part.
Claims (1)
筒２に透孔１１を通して外方に突出させた支持ボ
ルト１０にスラスト軸受１２を装着し、スラスト
軸受１２の一面に一方の球面部を有する下部球面
軸受２１ｂを設け外筒２に一方の球面部と対応す
る球面部を有する上部球面軸受２１ａを固定し、
スラスト軸受１２の他面を皿バネ２２を介してナ
ツト１５で締結したことを特徴とする転炉フード
の内筒支持装置。 A thrust bearing 12 is attached to a support bolt 10 whose one end is welded to the inner cylinder 1 of the converter hood and whose other end protrudes outward through a through hole 11 in the outer cylinder 2. A lower spherical bearing 21b having a spherical part is provided, and an upper spherical bearing 21a having a spherical part corresponding to one spherical part is fixed to the outer cylinder 2.
An inner cylinder support device for a converter hood, characterized in that the other surface of a thrust bearing 12 is fastened with a nut 15 via a disc spring 22.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3989187U JPH057228Y2 (en) | 1987-03-20 | 1987-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3989187U JPH057228Y2 (en) | 1987-03-20 | 1987-03-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63149951U JPS63149951U (en) | 1988-10-03 |
| JPH057228Y2 true JPH057228Y2 (en) | 1993-02-24 |
Family
ID=30853486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3989187U Expired - Lifetime JPH057228Y2 (en) | 1987-03-20 | 1987-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH057228Y2 (en) |
-
1987
- 1987-03-20 JP JP3989187U patent/JPH057228Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63149951U (en) | 1988-10-03 |
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