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WO2002035168A1 - Blast furnace wall cooling panel - Google Patents

Blast furnace wall cooling panel Download PDF

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Publication number
WO2002035168A1
WO2002035168A1 PCT/JP2001/009455 JP0109455W WO0235168A1 WO 2002035168 A1 WO2002035168 A1 WO 2002035168A1 JP 0109455 W JP0109455 W JP 0109455W WO 0235168 A1 WO0235168 A1 WO 0235168A1
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WO
WIPO (PCT)
Prior art keywords
furnace wall
blast furnace
cooling panel
cooling
pipe
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.)
Ceased
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PCT/JP2001/009455
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French (fr)
Japanese (ja)
Inventor
Steel Corporation Nippon
Takaaki Okuda
Keisuke Morimitsu
Noriaki Ida
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Nippon Steel Corp
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Nippon Steel Corp
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Publication date
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Publication of WO2002035168A1 publication Critical patent/WO2002035168A1/en
Anticipated expiration legal-status Critical
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Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B7/00Blast furnaces
    • C21B7/10Cooling; Devices therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/16Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a circular or arcuate path
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00Charging; Discharging; Manipulation of charge
    • F27D3/0033Charging; Discharging; Manipulation of charge charging of particulate material

Definitions

  • the weight of the copper base material is heavy, resulting in high costs.
  • FIG. 3 is a cross-sectional view showing a double pipe structure of a portion where the refrigerant pipe of the present invention rises from the blast furnace wall cooling panel.
  • the cross-sectional shape of the refrigerant pipe may be flat and the cooling surface may be wider than a circular shape.
  • grid-shaped ribs or studs can be provided on the front and Z or back of the blast furnace wall cooling panel.
  • the outer edge of the plate of the blast furnace wall cooling panel may be formed by a slope.
  • the portion where the refrigerant pipe rises from the plate may be a steel pipe having a diameter larger than that of the refrigerant pipe and may be a double pipe.
  • a cutout is cut out in accordance with the refrigerant pipe to fit the refrigerant pipe 2 through which the refrigerant passes through the copper or copper alloy plate 1.
  • the coolant pipe 2 is inserted into the cutout, and the tangent between the coolant pipe 2 and the plate 1 is joined by known welding such as arc welding, gas welding, brazing, etc., so that the blast furnace furnace wall cooling panel ( Hereinafter, referred to as a “cooling panel.”
  • Refrigerant piping 2 is made of copper, copper alloy, or steel.
  • One or more tubes are arranged vertically or horizontally, hook-shaped or meandering in order to cool the panel area evenly with as few as possible. Bend it into a shape.
  • castables 14 are sprayed between the grooves or studs 5 formed by the grid-shaped ribs 3 and 4 on the front of the cooling panel so as to have a buffering effect on the high heat load at the beginning of burning.
  • the sprayed castables 14 fall off after a while, but the molten material in the furnace solidifies and adheres immediately, covering the front surface.
  • Grid-shaped ribs 3 and 4 on front of cooling panel Alternatively, it is desirable that the stud 5 is disposed to stably maintain the deposit layer.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)

Abstract

In a furnace wall cooling device used for cooling blast furnace walls, etc., a blast furnace wall cooling panel, substituted for a stave cooler, which is lighter in weight, more inexpensive, and easier to produce. A blast furnace wall cooling panel which has no welded portions in a refrigerant path, the least possibility of water leakage, low cooling water pressure-loss, no stagnation, the capability to dispense with expansion pipes, and the capability to reduce the length of the pipe through which the refrigerant passes. A furnace wall cooling panel installed around the inner surface of a blast furnace wall, comprising a refrigerant pipe (2) of copper or copper alloy for passing a refrigerant therethrough, a plate (1) of copper of copper alloy having a cutout made to suit the size of the refrigerant pipe (2), the refrigerant pipe (2) being fitted in the cutout, the line of contact with the plate being welded. The cooling panel is provided with ribs (3, 4) for reinforcement.

Description

明 細 書 高炉炉壁用冷却パネル 技術分野  Description Cooling panel for blast furnace wall Technical field

本発明は、 高炉炉壁内面に周設される高炉炉壁冷却パネルに関す る。 背景技術  The present invention relates to a blast furnace wall cooling panel provided around an inner surface of a blast furnace wall. Background art

高炉操業において、 炉内の高温反応から鉄皮を保護するため、 ス テープクーラーを使用して冷却している。 近年、 高炉の羽口からの 微粉炭吹き込み量が増えるにつれて、 高炉炉壁への熱負荷が増大し 、 かつ変動するよ うになり、 従来の铸鉄製ステープクーラーに代わ つて銅製ステープクーラーが一部に採用され始めてきている。  In the blast furnace operation, a stap cooler is used to cool the steel shell from high-temperature reactions inside the furnace. In recent years, as the amount of pulverized coal injected from the tuyere of a blast furnace has increased, the heat load on the blast furnace furnace wall has increased and fluctuated, and a copper stap cooler has been partially replaced by the conventional iron stap cooler. It is starting to be adopted.

図 5は従来の銅製ステープクーラーのステープ下部拡大図で、 鉄 皮 12の内側に金属製のステープ本体 21を配し、 ステープ本体 21内に 設けられた冷却水路 22に冷却水を流して鉄皮 12を冷却する。 図 5は ステープ本体 21の下部のみを示しているが、 上部は下部とほぼ対象 になつていて、 冷却水は下部の冷却水配管 26から給水口 23を経て流 入し、 上部の排水口を経で冷却水配管から流出する。  Fig. 5 is an enlarged view of the lower part of the staple of the conventional copper staple cooler, in which a metal staple body 21 is arranged inside the steel sheath 12 and cooling water is flowed through a cooling water channel 22 provided in the staple body 21 to make the steel sheath. Cool 12 Fig. 5 shows only the lower part of the stapling body 21, but the upper part is almost the same as the lower part.The cooling water flows in from the lower cooling water pipe 26 through the water supply port 23, and the upper drain port Flows out of the cooling water pipes.

従来の銅製ステープクーラーの構造と して、 例えば、 特公昭 63 _ 56283 号公報には、 鍛造または圧延された銅または銅合金からなる ステープ本体にド リ ル加工によ り水路を穿ち、 水路両端を栓溶接す ると ともに、 冷却水配管をステープ本体に溶接した構造が記載され ている。  As a structure of a conventional copper stapler, for example, Japanese Patent Publication No. 63-56283 discloses that a stap body made of forged or rolled copper or copper alloy is drilled into a water channel by drilling, and both ends of the water channel are cooled. It describes a structure in which a cooling water pipe is welded to the main body of the staple together with a tap welding of the cooling water.

また、 特開平 11— 293312号公報には、 铸造された銅または銅合金 からなるステープ本体で、 铸造時に中子によ り水路を造形し、 凝固 後に複数の開口箇所から中子を破壊除去して水路を形成し、 ステー ブ本体に冷却水配管を溶接した構造が記載されている。 Japanese Patent Application Laid-Open No. 11-293312 discloses that a staple body made of forged copper or a copper alloy is used to form a water channel with a core at the time of forging, and to solidify. A structure is described in which a core is destroyed and removed from a plurality of openings to form a water channel, and a cooling water pipe is welded to the stave body.

このよ うな従来の銅ステープ構造においては、  In such a conventional copper tape structure,

( 1 ) 銅母材の重量が重く、 コス ト高となる。  (1) The weight of the copper base material is heavy, resulting in high costs.

( 2 ) 高度な深孔ドリル加工技術や、 錶造技術および栓溶接技術と 厳重な検査が要求される。  (2) Strict inspection is required with advanced deep hole drilling technology, fabrication technology and plug welding technology.

( 3 ) 水路はステープ本体の母材によ り形成されていて伝熱性には 優れる反面、 万一、 材質欠陥や使用中に発生する微細クラックから 亀裂が進展すれば、 直ちに水路の密封性は失われ、 炉内への漏水を ひきおこす。  (3) The waterway is formed from the base material of the stap body and has excellent heat conductivity.However, if a crack develops due to a material defect or a fine crack generated during use, the watertightness of the waterway is immediately improved. Lost, causing water leak into furnace.

( 4 ) 密閉水路形成時に図 5に示すように栓 24の溶接を避けること ができず、 長期間の過酷な条件での信頼性に不安が残る。  (4) Welding of the plug 24 cannot be avoided as shown in Fig. 5 when forming a closed water channel, and the reliability under long-term severe conditions remains uneasy.

( 5 ) 図 5の例のように、 冷却水配管 26はステープ本体 21に直角に 近い角度で溶接されることから、 冷却水の流れ方向が急変するため 、 圧損の上昇や水路端部で冷却水の滞留を招く ことが懸念される。  (5) As shown in the example of Fig. 5, the cooling water pipe 26 is welded to the staple body 21 at an angle close to a right angle, so that the flow direction of the cooling water changes suddenly. There is a concern that water may be retained.

( 6 ) 図 5の例のように、 冷却水配管 26は給排水口 23に配管 26の端 部を差込み、 ステープ本体 21の給排水口外縁部に開先をとつてレ型 隅肉溶接によ り接合されており、 曲げや引張りに対する溶接強度は 必ずしも十分とは言えない。 このため、 ステープ本体の冷却水配管 26が鉄皮 12を貫通する箇所を密封接合する際に、 伸縮管 25を介して 行い、 鉄皮炉外側にその為のスペースが必要であった、 という問題 カ めつに。 発明の開示  (6) As shown in the example of Fig. 5, the cooling water pipe 26 is inserted into the water supply / drain port 23 by inserting the end of the pipe 26, and the groove is welded to the outer edge of the water supply / drain port of the stapling body 21 using a fillet fillet welding. They are joined, and the welding strength against bending and tension is not always sufficient. For this reason, when the cooling water pipe 26 of the staple body is hermetically joined at the place where it penetrates the steel shell 12, it is performed through the expansion pipe 25, and a space is required outside the steel furnace. Mosquito Disclosure of the invention

そこで本発明が解決しよう とする課題は、 高炉炉壁等の冷却に使 用される炉壁冷却装置において、 ステープクーラーに代わり、 より 軽量安価で製作が容易な高炉炉壁冷却パネルを提供するものである 。 また、 冷媒径路上に溶接箇所がなく、 漏水の危険性が極めて低く 、 冷却水の圧損も低く、 滞留もなく、 伸縮管を省略できて、 冷媒の 通る配管の長さを短縮できる高炉炉壁冷却パネルを提供するもので める。 Accordingly, an object of the present invention is to provide a furnace wall cooling panel which is lighter, cheaper and easier to manufacture, instead of a stapler, in a furnace wall cooling device used for cooling a blast furnace furnace wall or the like. Is . In addition, there is no welding point on the refrigerant path, the risk of water leakage is extremely low, the pressure loss of the cooling water is low, there is no stagnation, the telescopic tube can be omitted, and the length of the pipe through which the refrigerant passes can be shortened. Provide cooling panels.

本発明の高炉用炉壁冷却パネルは、 高炉炉壁内面に周設される炉 壁冷却パネルにおいて、 冷媒を通す銅、 銅合金または鋼からなる冷 媒配管を配置し、 銅または銅合金の板に冷媒配管に合わせて切り抜 いた切り抜き部に冷媒配管をはめ込んで板との接線を溶接したこと を特徴とするもので、 その要旨は次のとおりである。  A furnace wall cooling panel for a blast furnace according to the present invention is a furnace wall cooling panel provided around an inner surface of a blast furnace wall, wherein a cooling pipe made of copper, copper alloy or steel through which a refrigerant passes is arranged, and a copper or copper alloy plate is provided. It is characterized in that the refrigerant pipe is inserted into the cutout section cut out in accordance with the refrigerant pipe and the tangent to the plate is welded.

( 1 ) 高炉炉壁内面に周設される炉壁冷却パネルにおいて、 冷媒を 通す銅、 銅合金または鋼からなる冷媒配管を配置し、 銅または銅合 金の板に冷媒配管に合わせて切り抜いた切り抜き部に冷媒配管をは め込んで、 板との接線を溶接したことを特徴とする高炉炉壁用冷却 パネル。  (1) In the furnace wall cooling panel installed around the inner surface of the blast furnace wall, a refrigerant pipe made of copper, copper alloy, or steel that allows the refrigerant to pass was cut out and cut out in a copper or copper alloy plate in accordance with the refrigerant pipe. A cooling panel for a blast furnace wall, wherein a refrigerant pipe is inserted into the cutout and a tangent to the plate is welded.

( 2 ) 前記冷媒配管の断面形状を扁平状にして円形状より冷却面を 広く したことを特徴とする ( 1 ) 記載の高炉炉壁用冷却パネル。  (2) The cooling panel for a blast furnace wall according to (1), wherein a cross-sectional shape of the refrigerant pipe is flat and a cooling surface is wider than a circular shape.

( 3 ) 高炉炉壁冷却パネルの前面およびノまたは背面に格子状のリ ブを設けたことを特徴とする ( 1 ) または ( 2 ) 記載の高炉炉壁用 冷却パネル。  (3) The cooling panel for a blast furnace wall according to (1) or (2), wherein a grid-like rib is provided on the front and / or back of the blast furnace wall cooling panel.

( 4 ) 高炉炉壁冷却パネルの炉内側に複数のスタッ ドを配置したこ とを特徴とする ( 1 ) または ( 2 ) 記載の高炉炉壁用冷却パネル。 (4) The blast furnace wall cooling panel according to (1) or (2), wherein a plurality of studs are arranged inside the furnace of the blast furnace wall cooling panel.

( 5 ) 高炉炉壁冷却パネルの板の外側を斜面で構成したことを特徴 とする ( 1 ) 〜 ( 4 ) のいずれか 1項に記載の高炉炉壁用冷却パネ ル。 (5) The cooling panel for a blast furnace wall according to any one of (1) to (4), wherein an outer surface of a plate of the blast furnace wall cooling panel is formed by a slope.

( 6 ) 高炉炉壁冷却パネルにおいて、 冷媒配管が板から立ち上がる 部分に冷媒配管よ り も径の大きい鋼管で 2重管となすことを特徴と する ( 1 ) 〜 ( 5 ) のいずれか 1項に記載の高炉炉壁用冷却パネル 図面の簡単な説明 (6) The blast furnace wall cooling panel is characterized in that the portion where the refrigerant pipe rises from the plate is made of a steel pipe having a diameter larger than that of the refrigerant pipe so as to be a double pipe (1) to (5). Cooling panel for blast furnace furnace wall described in BRIEF DESCRIPTION OF THE FIGURES

図 1 は、 本発明の高炉用炉壁冷却パネルの一例を示すである。 図 2は、 本発明の高炉炉壁冷却パネルを炉壁に取り付けた状態を 示す水平断面図である。  FIG. 1 shows an example of a furnace wall cooling panel for a blast furnace according to the present invention. FIG. 2 is a horizontal sectional view showing a state in which the blast furnace furnace wall cooling panel of the present invention is attached to a furnace wall.

図 3は、 本発明の冷媒配管が高炉炉壁冷却パネルから立ち上がる 部分の二重管構造を示す断面図である。  FIG. 3 is a cross-sectional view showing a double pipe structure of a portion where the refrigerant pipe of the present invention rises from the blast furnace wall cooling panel.

図 4は、 本発明の冷媒配管の別実施例を示す断面図である。  FIG. 4 is a sectional view showing another embodiment of the refrigerant pipe of the present invention.

図 5は、 従来の銅製ステープクーラーのステープ下部拡大図であ る。 発明を実施するための最良の形態  Fig. 5 is an enlarged view of the lower part of the stap of the conventional copper stapler. BEST MODE FOR CARRYING OUT THE INVENTION

本発明において、 前記冷媒配管の断面形状を扁平状にして円形状 よ り冷却面を広く してもよい。 また、 高炉炉壁冷却パネルの前面お よび Zまたは背面に格子状のリ ブあるいはスタッ ドを設けることが できる。 また、 高炉炉壁冷却パネルの板の外縁を斜面で構成しても よい。 また、 冷媒配管が板から立ち上がる部分は冷媒配管より も径 の大きい鋼管で 2重管にしても よい。  In the present invention, the cross-sectional shape of the refrigerant pipe may be flat and the cooling surface may be wider than a circular shape. In addition, grid-shaped ribs or studs can be provided on the front and Z or back of the blast furnace wall cooling panel. Further, the outer edge of the plate of the blast furnace wall cooling panel may be formed by a slope. Further, the portion where the refrigerant pipe rises from the plate may be a steel pipe having a diameter larger than that of the refrigerant pipe and may be a double pipe.

以下に、 本発明の高炉炉壁冷却パネルを図面に示す例に基づき説 明する。 図 1は本発明の高炉用炉壁冷却パネルの一例を示す正面図 、 図 2は高炉炉壁冷却パネルを炉壁に取り付けた状態を示す水平断 面図、 図 3は冷媒配管が高炉炉壁冷却パネルから立ち上がる部分の 二重管構造を示す断面図、 図 4は冷媒配管の別実施例を示す断面図 である。  The blast furnace wall cooling panel of the present invention will be described below based on an example shown in the drawings. FIG. 1 is a front view showing an example of a furnace wall cooling panel for a blast furnace according to the present invention, FIG. 2 is a horizontal sectional view showing a state where the blast furnace wall cooling panel is attached to the furnace wall, and FIG. FIG. 4 is a cross-sectional view showing a double pipe structure of a portion rising from a cooling panel. FIG. 4 is a cross-sectional view showing another embodiment of a refrigerant pipe.

図 1において、 銅または銅合金の板 1に冷媒を通す冷媒配管 2を はめ込むために、 冷媒配管に合わせて切り抜いた切り抜き部を形成 し、 切り抜き部に冷媒配管 2をはめ込んで、 冷媒配管 2 と板 1 との 接線をアーク溶接、 ガス溶接、 ろう付け等の公知の溶接によ り接合 するこ とで高炉用炉壁冷却パネル (以下 「冷却パネル」 という。 ) を形成する。 冷媒配管 2は銅、 銅合金または鋼からなり、 1本以上 のできるだけ少ない本数でパネル面積をむらなく冷却するために、 1本以上の管を鉛直や水平に配置したり、 鈎型状や蛇行状に曲げて 配置する。 In Fig. 1, a cutout is cut out in accordance with the refrigerant pipe to fit the refrigerant pipe 2 through which the refrigerant passes through the copper or copper alloy plate 1. Then, the coolant pipe 2 is inserted into the cutout, and the tangent between the coolant pipe 2 and the plate 1 is joined by known welding such as arc welding, gas welding, brazing, etc., so that the blast furnace furnace wall cooling panel ( Hereinafter, referred to as a “cooling panel.” Refrigerant piping 2 is made of copper, copper alloy, or steel.One or more tubes are arranged vertically or horizontally, hook-shaped or meandering in order to cool the panel area evenly with as few as possible. Bend it into a shape.

炉内面を形成する冷却パネル前面には、 補強のために、 横リブ 3 と縦リブ 4を格子形状に配置する。 また、 冷却パネル背面にも横リ ブ 9 と縦リブ 10を格子形状に構成する。 あるいはリブ 3, 4に変え て図 4に示すよ うにスタツ ド 5を配置してもよい。  At the front of the cooling panel that forms the furnace inner surface, horizontal ribs 3 and vertical ribs 4 are arranged in a lattice shape for reinforcement. The horizontal ribs 9 and the vertical ribs 10 are also formed in a lattice shape on the back of the cooling panel. Alternatively, instead of the ribs 3 and 4, a stud 5 may be arranged as shown in FIG.

また、 冷却パネルの板の外縁を斜面 6で構成して、 隣接する冷却 パネルの外縁の斜面 6 と互いに重なる構造とすることによ り、 外縁 を垂直に形成するのに比べて伝熱を促進することができ、 冷却効果 の低下を防ぐことができる。  In addition, the outer edge of the cooling panel plate is made up of the slope 6 and overlaps with the outer edge slope 6 of the adjacent cooling panel, thereby facilitating heat transfer as compared to the case where the outer edge is formed vertically. The cooling effect can be prevented from lowering.

冷媒配管 2が冷却パネルの板 1から立ち上がる部分には、 冷媒配 管 2よ り も径の大きい鋼管 7を外管にして 2重管となし、 2重管部 の鋼管 7にて鉄皮 1 2 とシール部材 8にて密封接合する。  At the part where the refrigerant pipe 2 rises from the cooling panel 1, a steel pipe 7 larger in diameter than the refrigerant pipe 2 is used as the outer pipe to form a double pipe. 2 and sealing member 8 are hermetically bonded.

格子形状のリ ブ 3, 4 , 9, 10またはスタッ ド 5 と冷媒配管 2を 避けた位置には冷却パネルを鉄皮 12に固定する取付ボルト 11が設け られている。 冷却パネルを鉄皮 12にボルトで取付した後、 鉄皮 12と の隙間にキャスタブル 13を流し込む。  At positions avoiding the grid-shaped ribs 3, 4, 9, 10 or the stud 5 and the refrigerant pipe 2, mounting bolts 11 for fixing the cooling panel to the steel shell 12 are provided. After attaching the cooling panel to the steel shell 12 with bolts, the castable 13 is poured into the gap between the steel shell 12 and the cooling panel.

冷却パネル前面の格子形状のリ ブ 3, 4で形成される溝部または スタッ ド 5の間には、 高炉稼働前にキャスタブル 14を吹き付け、 火 入れ当初の高熱負荷に対する緩衝効果を持たせる。 この吹き付けた キャスタブル 14は、 暫時後に脱落するが、 すぐに炉内の溶融物等が 凝固付着し、 前面を覆う。 冷却パネル前面の格子形状のリブ 3, 4 または'スタッ ド 5はこの付着物層を安定保持するためにも配置され ることが望ましい。 Before casting the blast furnace, castables 14 are sprayed between the grooves or studs 5 formed by the grid-shaped ribs 3 and 4 on the front of the cooling panel so as to have a buffering effect on the high heat load at the beginning of burning. The sprayed castables 14 fall off after a while, but the molten material in the furnace solidifies and adheres immediately, covering the front surface. Grid-shaped ribs 3 and 4 on front of cooling panel Alternatively, it is desirable that the stud 5 is disposed to stably maintain the deposit layer.

図 4において、 冷媒配管 2を曲げ加工後にプレスし、 冷媒配管 2 の断面形状を楕円形とした場合を示す。 冷媒配管 2の断面形状を楕 円または長円形とすることで、 パネル面積に占める管面積の割合を 増やすことができ、 冷却効果を高めることができる。 なお、 図 4で は冷却パネル前面にスタッ ド 5を配置することによって、 キャスタ ブル 1 3 と冷却パネルとが強固に結合される。 産業上の利用可能性  FIG. 4 shows a case where the refrigerant pipe 2 is pressed after being bent, and the cross-sectional shape of the refrigerant pipe 2 is made elliptical. By making the cross-sectional shape of the refrigerant pipe 2 elliptical or elliptical, the ratio of the pipe area to the panel area can be increased, and the cooling effect can be enhanced. In FIG. 4, the castable 13 and the cooling panel are firmly connected by disposing the stud 5 in front of the cooling panel. Industrial applicability

本発明による高炉用炉壁冷却パネルによ り以下の優れた劾果が得 られる。  The following excellent impeachment results can be obtained by the blast furnace wall cooling panel of the present invention.

( 1 ) 銅または銅合金の板と銅、 銅合金または鋼からなる冷媒配管 とから構成され、 極めて軽量、 安価に製作することができる。  (1) It is composed of a copper or copper alloy plate and a refrigerant pipe made of copper, copper alloy or steel, and can be manufactured extremely lightly and inexpensively.

( 2 ) 冷媒配管は給水側から排水側まで、 1本の管材を曲げて使用 し、 炉内側に溶接箇所を設けることなく構成することができるので 、 長期間の使用に、 十分耐えるものである。  (2) The refrigerant pipe can be configured by bending one pipe from the water supply side to the drainage side without using a welded part inside the furnace, so it can sufficiently withstand long-term use. .

( 3 ) 冷媒配管は適切な曲げ半径を選ぶことで断面形状の急激な変 化なく曲げ加工できるので、 冷却水の圧損の上昇や、 滞留部をつく ることがない。  (3) Refrigerant piping can be bent without an abrupt change in cross-sectional shape by selecting an appropriate bending radius, so there is no rise in cooling water pressure loss or stagnation.

( 4 ) ゾンデ用開口や出銑口開口の近傍に冷却パネルを設置する場 合にも任意の形状に設計 · 製作できる。 また、 冷却盤の鉄皮を流用 して冷却パネルを設置する場合にも、 既設の開口形状に応じて、 設 計 · 製作できる。  (4) Even if a cooling panel is installed near the sonde opening or taphole opening, it can be designed and manufactured in any shape. Also, when installing a cooling panel by diverting the steel shell of the cooling board, it can be designed and manufactured according to the existing opening shape.

( 5 ) 管の断面形状を楕円または長円形とすることで、 冷却パネル 面積に占める管部分の面積の割合を増やすことができ、 冷却効果を 高めることができる。 ( 6 ) 冷却パネル前面に縦横のリブを格子状に構成するか、 または スタッ ドを配置し、 高炉稼動前にキャスタプルを吹き付け、 火入れ 当初の高熱負荷に対する緩衝効果を持たせ、 稼動後には、 炉内の溶 融物等が付着保持し易くできる。 (5) By making the cross-sectional shape of the pipe elliptical or elliptical, the ratio of the area of the pipe portion to the cooling panel area can be increased, and the cooling effect can be enhanced. (6) Vertical or horizontal ribs are arranged in a grid pattern on the front of the cooling panel, or studs are arranged.Castles are sprayed before the blast furnace starts operation, and the blast furnace has a buffering effect against the initial high heat load. The melt and the like inside can be easily adhered and held.

( 7 ) 冷却パネルの板の外縁を斜面で構成し、 上下左右に隣接する 冷却パネルの板の外縁斜面部が互いに重なり合う ように周設できる ので、 冷却パネルの目地部での冷却効果の低下を防ぐことができる  (7) Since the outer edges of the cooling panel plates are formed by slopes, and the outer edge slopes of the cooling panel plates adjacent vertically and horizontally can be installed so that they overlap each other, the cooling effect at the joints of the cooling panel is reduced. Can be prevented

( 8 ) 冷媒配管が冷却パネルの板部から立ち上がる部分に冷媒配管 より も径の大きい鋼管を外管にして 2重管となすことで補強効果を 高めており、 鉄皮貫通部の密封も簡単なものでよく、 伸縮管を用い る必要はない。 そのため、 冷却水配管の鉄皮外側での長さを短縮で き、 スペースを小さくできる。 (8) A steel pipe with a larger diameter than the refrigerant pipe is used as the outer pipe at the part where the refrigerant pipe rises from the plate part of the cooling panel to form a double pipe, which enhances the reinforcing effect and makes it easy to seal the steel skin penetration. It is not necessary to use a telescopic tube. Therefore, the length of the cooling water pipe outside the steel shell can be reduced, and the space can be reduced.

( 9 ) 冷却パネル背面にも縦横のリ ブを格子状に構成して熱変形に 対する補強効果を高めることができる。  (9) Vertical and horizontal ribs can also be configured in a grid pattern on the back of the cooling panel to enhance the effect of reinforcing against thermal deformation.

Claims

請 求 の 範 囲 The scope of the claims 1 . 高炉炉壁内面に周設される炉壁冷却パネルにおいて、 冷媒を 通す銅、 銅合金または鋼からなる冷媒配管を配置し、 銅または銅合 金の板に冷媒配管に合わせて切り抜いた切り抜き部に冷媒配管をは め込んで、 板との接線を溶接したことを特徴とする高炉炉壁用冷却 パネル。 1. Cooling pipes made of copper, copper alloy, or steel that allow the coolant to pass through the furnace wall cooling panel provided around the inner surface of the blast furnace furnace wall, and cut out in accordance with the coolant pipes on a copper or copper alloy plate A cooling panel for a blast furnace wall, characterized in that a refrigerant pipe is fitted into the section and the tangent to the plate is welded. 2 . 前記冷媒配管の断面形状を扁平状にして円形状よ り冷却面を 広く したことを特徴とする請求項 1記載の高炉炉壁用冷却パネル。  2. The cooling panel for a blast furnace furnace wall according to claim 1, wherein a cross-sectional shape of the refrigerant pipe is flat and a cooling surface is wider than a circular shape. 3 . 高炉炉壁冷却パネルの前面および/または背面に格子状のリ ブを設けたことを特徴とする請求項 1 または 2記載の高炉炉壁用冷 却パネル。  3. The cooling panel for a blast furnace wall according to claim 1, wherein a grid-like rib is provided on a front surface and / or a rear surface of the blast furnace wall cooling panel. 4 . 高炉炉壁冷却パネルの炉内側に複数のスタツ ドを配置したこ とを特徴とする請求項 1または 2記載の高炉炉壁用冷却パネル。  4. The cooling panel for a blast furnace wall according to claim 1, wherein a plurality of studs are arranged inside the furnace of the blast furnace wall cooling panel. 5 . 高炉炉壁冷却パネルの板の外縁を斜面で構成したことを特徴 とする請求項 1〜 4のいずれか 1項に記載の高炉炉壁用冷却パネル  5. The blast furnace wall cooling panel according to any one of claims 1 to 4, wherein an outer edge of a plate of the blast furnace wall cooling panel is formed by a slope. 6 . 高炉炉壁冷却パネルにおいて、 冷媒配管が板から立ち上がる 部分に冷媒配管よ りも径の大きい鋼管で 2重管となすことを特徴と する請求項 1〜 5のいずれか 1項に記載の高炉炉壁用冷却パネル。 6. The blast furnace wall cooling panel according to any one of claims 1 to 5, wherein a portion of the refrigerant pipe rising from the plate is a double pipe made of a steel pipe having a diameter larger than that of the refrigerant pipe. Cooling panel for blast furnace wall.
PCT/JP2001/009455 2000-10-27 2001-10-26 Blast furnace wall cooling panel Ceased WO2002035168A1 (en)

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CN100465290C (en) * 2007-01-12 2009-03-04 汕头华兴冶金备件厂有限公司 A folded cooling wall
US20090200715A1 (en) * 2006-04-18 2009-08-13 Paul Wurth S.A. Method of manufacturing a stave cooler for a metallurgical furnace and a resulting stave cooler

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JP2009263738A (en) * 2008-04-28 2009-11-12 Jfe Steel Corp Facility for cooling furnace body of blast furnace
KR101586912B1 (en) * 2014-05-29 2016-02-02 현대제철 주식회사 Blast furnace structure walls
LU100107B1 (en) * 2017-02-22 2018-10-02 Wurth Paul Sa Cooling Panel for Metallurgical Furnace

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EP1391521A1 (en) * 2002-08-20 2004-02-25 Voest-Alpine Industrieanlagenbau GmbH & Co. Cooling plate for metallurgical furnace
WO2004018713A1 (en) * 2002-08-20 2004-03-04 Voest-Alpine Industrieanlagenbau Gmbh & Co Cooling plate for metallurgic furnaces
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CN100465290C (en) * 2007-01-12 2009-03-04 汕头华兴冶金备件厂有限公司 A folded cooling wall

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