JPH0313516A - Perpendicular chute for bell-less charging device - Google Patents
Perpendicular chute for bell-less charging deviceInfo
- Publication number
- JPH0313516A JPH0313516A JP14834189A JP14834189A JPH0313516A JP H0313516 A JPH0313516 A JP H0313516A JP 14834189 A JP14834189 A JP 14834189A JP 14834189 A JP14834189 A JP 14834189A JP H0313516 A JPH0313516 A JP H0313516A
- Authority
- JP
- Japan
- Prior art keywords
- charging device
- bell
- cooling
- chute
- passage
- 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.)
- Pending
Links
- 239000002826 coolant Substances 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract 4
- 239000000498 cooling water Substances 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000112 cooling gas Substances 0.000 abstract description 3
- 238000012856 packing Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 5
- 239000000945 filler Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 241000270295 Serpentes Species 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Blast Furnaces (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野]
本発明は、ベルレス式高炉炉頂装入装置に組み込まれる
垂直シュートの構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the structure of a vertical chute incorporated in a bellless blast furnace top charging device.
〔従来の技術J
従来、ベルレス装入装置においては冷却された気体(N
2あるいは高炉ガス)を大量に外部より当該装置に吹き
込むことにより冷却を行うのが常であった。しかしなが
らこのような冷却では気体を吹き込むための運転費が高
騰し設備費が非常に高価となる。[Prior art J] Conventionally, in bellless charging equipment, cooled gas (N
It was customary to cool the equipment by blowing a large amount of (or blast furnace gas) into the equipment from the outside. However, in this type of cooling, the operating cost for blowing gas increases and the equipment cost becomes extremely expensive.
この欠点を解消するため特開昭59−116305や特
開昭59−116306号公報で提案された水冷式ベル
レス装入装置が実機化され1984年より実用に供され
ている。In order to overcome this drawback, a water-cooled bellless charging device proposed in Japanese Patent Application Laid-open Nos. 59-116305 and 59-116306 has been commercialized and put into practical use since 1984.
ところで、この水冷式装置ではベルレス装入装置自身の
冷却については考慮されているものの、この装置内に組
み込まれる垂直シュートの冷却については何らの考慮も
払われていなかった。垂直シュートはベルレス装入装置
を上下方向に貫通する形で装着され、高炉装入原料を炉
内に誘導する通路の役目を果たし、ベルレス装入装置自
身を摩耗から防ぐためにライナーとしての機能も合わせ
持ったバイブ状の構造体である。第4図は従来の垂直シ
ュートlを示し、ケーシング3と、その内面に内張した
ライナ4とから成っている。By the way, in this water-cooled device, although consideration has been given to cooling the bellless charging device itself, no consideration has been given to cooling the vertical chute incorporated within this device. The vertical chute is installed so that it passes through the bellless charging device in the vertical direction, and serves as a passage for guiding the material to be charged into the blast furnace into the furnace.It also functions as a liner to protect the bellless charging device itself from wear. It is a vibrator-like structure. FIG. 4 shows a conventional vertical chute 1 consisting of a casing 3 and a liner 4 lined on its inner surface.
この垂直シュートは高炉炉内ガスに直接さらされるため
冷却しない場合にはかなりの高温になるが、旧来の冷却
気体を吹き込む構造のベルレス装入装置では、垂直シュ
ート近傍の炉内雰囲気がこの冷却ガスにより希釈され温
度が低下するため、垂直シュート自体の温度はさほど高
くはならなかった。This vertical chute is directly exposed to the gas inside the blast furnace, so it becomes quite high temperature if it is not cooled. However, in the conventional bell-less charging system that blows cooling gas, the atmosphere in the furnace near the vertical chute is heated up by the cooling gas. The temperature of the vertical shoot itself did not become very high because the temperature was lowered by dilution.
しかるに、設備費と運転費の低減を狙って開発された水
冷式ベルレス装入装置の場合には垂直シュート周囲の温
度は殆ど炉内雰囲気温度と同等であり、かなりの高温に
なる。そのため垂直シュートは高温状態となり、耐摩耗
性能が低下し、熱変形が発生し、極端な場合には熱変形
した垂直シュートがベルレス装入装置の旋回テーブルと
干渉接触し運転不可能になるという事態が発生した。However, in the case of a water-cooled bellless charging device developed with the aim of reducing equipment costs and operating costs, the temperature around the vertical chute is almost the same as the ambient temperature in the furnace, and becomes quite high. As a result, the vertical chute becomes hot, its wear resistance deteriorates, thermal deformation occurs, and in extreme cases, the thermally deformed vertical chute interferes with the rotating table of the bellless charging device, making it impossible to operate. There has occurred.
このように突発的にベルレス装入装置が停止した場合に
は即座に製鉄所における銑鉄生産及び高炉ガスによる発
電所、加熱炉等が停止することとなり製鉄所全体が停止
してしまう、そのためエネルギーコスト、あるいは生産
阻害等の損害は莫大なもとのなるのである。If the bell-less charging equipment suddenly stops like this, the steelworks' pig iron production, blast furnace gas power plant, heating furnace, etc. will immediately stop, resulting in a shutdown of the entire steelworks, resulting in lower energy costs. Otherwise, the damage caused by production disruption will be enormous.
また、接触事故を起さない場合でも耐摩耗性の低下によ
り短寿命となり、維持費の高騰を招くこととなった。Furthermore, even when contact accidents do not occur, the wear resistance decreases, resulting in a shortened lifespan, leading to an increase in maintenance costs.
[発明が解決しようとする課題]
このように、水冷式ベルレス装入装置では、なるほど、
設備費と運転費の点で旧来のガス冷却式のベルレス装入
装置より優れたものとなったが、維持費および信頼性の
点ではガス冷却式のものより劣る結果となり十分にその
長所が生かせなかった。[Problems to be solved by the invention] As described above, the water-cooled bellless charging device has the following problems.
Although it is superior to the conventional gas-cooled bellless charging system in terms of equipment costs and operating costs, it is inferior to the gas-cooled system in terms of maintenance costs and reliability, so its advantages cannot be fully utilized. There wasn't.
[課題を解決するための手段j
本発明はかかる問題をすべて解決するためのものであり
、高炉炉頂部に設置されたベルレス式炉頂装入装置内に
装着される高炉装入原料誘導用の垂直シュートにおいて
、このシュートの壁体内に冷却媒体の流通する通路を形
成したことを特徴とする。[Means for Solving the Problems] The present invention is intended to solve all of these problems, and is directed to a method for guiding blast furnace charging material installed in a bellless top charging device installed at the top of the blast furnace. The vertical chute is characterized in that a passage through which a cooling medium flows is formed in the wall of the chute.
[作用1
本発明は炉の外部より冷却水を炉内の垂直シュートまで
導き、垂直シュートの冷却を行った復信の場所へ排出す
るものである。従って、大量の冷却気流を必要とせず、
垂直シェードの寿命の増大、熱変形の防止に寄与する。[Operation 1] In the present invention, cooling water is guided from the outside of the furnace to a vertical chute inside the furnace, and is discharged to a return location where the vertical chute is cooled. Therefore, a large amount of cooling airflow is not required,
Contributes to increasing the lifespan of vertical shades and preventing thermal deformation.
本発明の冷却媒体としては上記の冷却水をそのまま直接
抜熱材として用いてももちろんよく、ヒートバイブ等を
用い、その冷却媒体を介在媒体としてもよい。As the cooling medium of the present invention, the above-mentioned cooling water may of course be used directly as a heat removal material, or a heat vibrator or the like may be used and the cooling medium may be used as an intervening medium.
[実施例1
本発明の1実施例を第1図により説明する。第1図はベ
ルレス式炉頂装入装置11の主要部を示すもので、垂直
シュートl、分配シュート10、旋回装置12などから
成っている。第1図(blは垂直シュートlのみを取出
して示したものである。[Embodiment 1] One embodiment of the present invention will be described with reference to FIG. FIG. 1 shows the main parts of a bellless furnace top charging device 11, which consists of a vertical chute 1, a distribution chute 10, a rotating device 12, and the like. FIG. 1 (bl shows only the vertical chute 1).
炉外より給水バイブロを通して垂直シュートlに供給さ
れた冷却水は垂直シュートl内に埋め込まれた蛇管2を
通りケーシング3およびライナ4の熱を奪った後排水バ
イブ7を通して炉外へ排出される。ケーシング3.蛇管
2.ライナ4の間の空間には熱伝導を良好にするための
充填材5を注入し満たしておく、この充填材は化学的安
定性があり、適度な熱伝導率を有するものなら何でもよ
く、本例では炭化珪素系のモルタルを使用している。Cooling water supplied from outside the furnace to the vertical chute 1 through the water supply vibro passes through a flexible pipe 2 embedded in the vertical chute 1, removes heat from the casing 3 and the liner 4, and is then discharged to the outside of the furnace through the drainage vibrator 7. Casing 3. Snake pipe 2. The space between the liners 4 is injected and filled with a filler 5 to improve heat conduction.This filler may be any material as long as it is chemically stable and has an appropriate thermal conductivity. In this example, silicon carbide mortar is used.
第2図は垂直シュート1のケーシング3自身にジャケッ
ト3aを設けた構造とし、これに冷却水を循環させ冷却
を行う例である。FIG. 2 shows an example in which a jacket 3a is provided on the casing 3 of the vertical chute 1, and cooling water is circulated through the jacket 3a.
第3図は鉛直方向の熱輸送にヒートバイブ8を用い、こ
れをケーシング3とライナ4の間に埋め込み利用した例
で、ヒートバイ18周囲の隙間には実施例1と同様に充
填材5が配設されている。FIG. 3 shows an example in which a heat vibrator 8 is used to transport heat in the vertical direction, and is embedded between the casing 3 and the liner 4. A filler material 5 is placed in the gap around the heat vibrator 18, as in Example 1. It is set up.
本例ではライナ4が一部摩耗しヒートバイブ8が露出し
て破損した場合でも冷却水が炉内に漏れることはな(、
また円周方向で同時にヒートバイブ8がすべて破損する
ことは考えられないため冗長な冷却管路を要せず、より
すぐれたものとなっている、ヒートバイブ8からの熱を
取出す熱交換はケーシング3の上部に設けられたリング
状ヘッダー9において外部から供給された冷却水と熱交
換させる。これらの排水は直接外部へ排水しても良いが
、再び水冷式ベルレス装入装置本体11の冷却用として
使用しても一部に差し支えはない。In this example, even if the liner 4 is partially worn and the heat vibrator 8 is exposed and damaged, the cooling water will not leak into the furnace (
In addition, since it is unlikely that all the heat vibes 8 are damaged at the same time in the circumferential direction, there is no need for redundant cooling pipes, and the heat exchange that takes out the heat from the heat vibes 8 is done using a casing. Heat is exchanged with cooling water supplied from the outside in a ring-shaped header 9 provided on the top of the cooling water. Although these waste water may be directly drained to the outside, there is no problem even if some of the water is used for cooling the water-cooled bellless charging device body 11 again.
〔発明の効果1
本発明により、水冷式ベルレス装入装置において維持費
の低減およびガス冷却ベルレス装入装置並の信頼性の確
保が可能となり、その経済的な効果は大なるものがある
。[Effect of the Invention 1] According to the present invention, it is possible to reduce maintenance costs in a water-cooled bellless charging device and ensure reliability comparable to that of a gas-cooled bellless charging device, and the economic effects thereof are significant.
第1図は本発明の1実施例の水冷式ベルレス装入装置の
(a)縦断面図、(b)垂直シュート−部所面側面図、
第2図および第3図は冷却構造のバリエーションを示す
一部断面側面図、第4図は従来の冷却なしの垂直シュー
トの一部断面側面図である。
l・・・垂直シュート
2・・−蛇管
3−・・ケーシング
3a・・・ジャケット
4−・・ライナ
5・・・充填材
6・・・給水パイプ
7・・・排水パイプ
8・−ヒートパイプ
9・・・リング状ヘッダ
10・・−分配シュート
11・・・水冷式ベルレス装入装置
12・−・旋回装置FIG. 1 shows (a) a vertical sectional view of a water-cooled bellless charging device according to an embodiment of the present invention, (b) a vertical chute-part side view,
2 and 3 are partially sectional side views showing variations of the cooling structure, and FIG. 4 is a partially sectional side view of a conventional vertical chute without cooling. l...Vertical chute 2...-Serial pipe 3--Casing 3a...Jacket 4--Liner 5...Filler 6...Water supply pipe 7...Drainage pipe 8--Heat pipe 9 ...Ring header 10...-Distribution chute 11...Water-cooled bellless charging device 12...Swivel device
Claims (1)
に装着される原料通過用の垂直 シュートにおいて、該シュートの壁体内に冷却媒体の流
通する通路を形成したことを特徴とする原料シュート。[Scope of Claims] 1. In a vertical chute for passing raw material installed in a bellless top charging device installed at the top of the blast furnace, a passage through which a cooling medium flows is formed in the wall of the chute. A raw material chute featuring
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14834189A JPH0313516A (en) | 1989-06-13 | 1989-06-13 | Perpendicular chute for bell-less charging device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14834189A JPH0313516A (en) | 1989-06-13 | 1989-06-13 | Perpendicular chute for bell-less charging device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0313516A true JPH0313516A (en) | 1991-01-22 |
Family
ID=15450605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14834189A Pending JPH0313516A (en) | 1989-06-13 | 1989-06-13 | Perpendicular chute for bell-less charging device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0313516A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999028510A1 (en) * | 1997-11-26 | 1999-06-10 | Paul Wurth S.A. | Method for cooling a shaft furnace loading device |
JP2006076563A (en) * | 2004-09-09 | 2006-03-23 | Trw Automot Electronics & Components Gmbh & Co Kg | Air vent, in particular for vehicle |
JP2013518188A (en) * | 2010-01-27 | 2013-05-20 | ポール ヴルス エス.エイ. | Metallurgical reactor charging equipment |
-
1989
- 1989-06-13 JP JP14834189A patent/JPH0313516A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999028510A1 (en) * | 1997-11-26 | 1999-06-10 | Paul Wurth S.A. | Method for cooling a shaft furnace loading device |
US6544468B1 (en) | 1997-11-26 | 2003-04-08 | Paul Wurth S.A. | Method for cooling a shaft furnace loading device |
CZ298626B6 (en) * | 1997-11-26 | 2007-11-28 | Paul Wurth S. A. | Method for cooling shaft furnace loading device |
JP2006076563A (en) * | 2004-09-09 | 2006-03-23 | Trw Automot Electronics & Components Gmbh & Co Kg | Air vent, in particular for vehicle |
JP2013518188A (en) * | 2010-01-27 | 2013-05-20 | ポール ヴルス エス.エイ. | Metallurgical reactor charging equipment |
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