JPS61127802A - Ore receiving hardware - Google Patents
Ore receiving hardwareInfo
- Publication number
- JPS61127802A JPS61127802A JP24872284A JP24872284A JPS61127802A JP S61127802 A JPS61127802 A JP S61127802A JP 24872284 A JP24872284 A JP 24872284A JP 24872284 A JP24872284 A JP 24872284A JP S61127802 A JPS61127802 A JP S61127802A
- Authority
- JP
- Japan
- Prior art keywords
- ore
- cooling plate
- furnace
- hardware
- cooling
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/08—Top armourings
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Blast Furnaces (AREA)
Abstract
Description
【発明の詳細な説明】
（麓東上の利用分野）
木＠明は、高炉の炉口部に設置せられる鉱石受金物に関
するものである。[Detailed Description of the Invention] (Field of Application of Rokutojo) 木＠明 relates to an ore support installed at the mouth of a blast furnace.
（従来の技術）
＃ｉ？’炉口部の鉱石受証物を別名鉄煉瓦と云うように
、従来型の鉱石受金物は第６図に示すとおり鋳ｖＣ製り
型ブロック１０ｔ−煉瓦１２同様に積み嵐ねる構造とな
っている。(Conventional technology) #i? 'The ore receiving object at the furnace mouth is also called iron brick, and the conventional ore receiving object has a structure in which it is stacked in the same way as cast VC mold blocks 10 tons and bricks 12, as shown in Figure 6. There is.
また高炉装入原料が直接当る箇所は摩耗によシ損耗する
のく対し、原料に埋っている箇所は熱衝撃により変形、
損傷することから、鋳鉄製り型ブロックの代シに鉱石受
金物の下部に耐熱鋳鋼（ＳＯＨＪを、上部にダクタイル
鋳鉄（ＩＰＣＤ）を採用している。In addition, areas that are in direct contact with the raw materials charged in the blast furnace are subject to wear and tear due to abrasion, whereas areas that are buried in the raw materials are deformed and damaged due to thermal shock.
To prevent damage, heat-resistant cast steel (SOHJ) is used for the lower part of the ore receiver and ductile cast iron (IPCD) is used for the upper part in place of the cast iron mold block.
さらに鉱石受金物は摩耗・損傷するものでめるという前
提から実公昭５３−３６９６６号公報に見られるように
鉱石受金物を炉外から取替え可１ヒにした構造のものも
採用されている。この取替え式鉱石受金物１′は第７図
にその一例を示すようｔこ炉口上部のマ／ホールから炉
内に取出し、取込みサレ、ｆ：ｘ、−；／１４によって
ｒ外１ｍＫ引張ｐｗｙされる構造となっている。Furthermore, based on the premise that the ore support is subject to wear and damage, a structure in which the ore support can be replaced from outside the furnace has been adopted, as seen in Japanese Utility Model Publication No. 53-36966. This replaceable ore support 1' is taken out into the furnace from the ma/hole at the top of the furnace mouth, as shown in FIG. The structure is such that
（発明が解次しようとする問題点）
近年高炉操業が重油吹込与からオールコークス操業に変
るにつれて、炉口部に於ける熱負荷も次第に上昇し、従
来の様に鉱石受金物が非水冷の鋳鉄／ｇ鋼証物では測温
強匿、高温耐摩耗性、高温熱衝撃性の面から損耗はさシ
１られず、例え取替え可能構造としても頻繁に取替える
ことが必要となり、整備費に占める比重が無視できない
ものとなって来た〇
本発明は、このような問題点に麺み、鉱石受笠物を間接
冷却構造とすることにより鉱石受証物の長寿命化を計る
ものである。(Problems to be solved by the invention) In recent years, as blast furnace operation has changed from heavy oil injection to all-coke operation, the heat load at the furnace mouth has gradually increased, and the ore support has been replaced with a non-water-cooled one. Cast iron/g steel exhibits are subject to wear and tear due to their temperature resistance, high temperature abrasion resistance, and high temperature thermal shock resistance, and even if they have a replaceable structure, they must be replaced frequently, which accounts for a large portion of maintenance costs. The specific gravity has become something that cannot be ignored.The present invention addresses these problems and aims to extend the life of the ore receiving object by providing an indirect cooling structure for the ore receiving object.
（問題点ｔｐｓ決するための手段）
本発明に係る鉱石受４に＠は、炉内側に取外し、取替え
可能な様に分割されたプレート状鉱石受蓋物１を配し、
当該プレート状の取替式鉱石受蓋物１の背ＯＩ］（炉外
側の面）に水冷鋳鉄薫物からなる冷却＆２を配置し、プ
レート状の取替式鉱石受金物１と水冷−扶笠物からなる
冷却板２０間間隙高ＦｙＪ外側から不定形耐火物５を圧
入するタップ１３を取付は形成したことを特徴とする鉱
石受釜物である。(Means for resolving the problem TPS) The ore receiver 4 according to the present invention is provided with a plate-shaped ore receiver cover 1 divided into parts such that it can be removed and replaced inside the furnace,
Cooling &2 made of water-cooled cast iron smoke is placed on the back OI of the plate-shaped replaceable ore receiver 1 (on the outside surface of the furnace), and a cooling &2 made of water-cooled cast iron smoke is placed between the plate-shaped replaceable ore receiver 1 and the water-cooled - Fugasamono. This ore receiving pot is characterized in that a tap 13 for press-fitting the monolithic refractory 5 from the outside of the cooling plate 20 with a gap height FyJ is formed.
（実施例１
以下、本発明にりいて図面により詳細に説明するＯ
第１図は不発明になる鉱石受並物を設置した高炉炉口部
の断面図である。(Example 1) The present invention will be described in detail below with reference to the drawings. Fig. 1 is a cross-sectional view of the mouth of a blast furnace in which an ore receptacle according to the invention is installed.
取替可能な鉱石受並物１の背面に密接して水冷側鉄並物
からなる冷却板２が鉄皮３に固定されており、該冷却板
２は鋳鉄雀物に鋳込ま几た鋼管４を経て九人される冷却
死体により冷却さルている。A cooling plate 2 made of water-cooled iron is fixed to the iron shell 3 in close contact with the back of the replaceable ore holder 1, and the cooling plate 2 is made of a steel pipe 4 cast into a cast iron shell. It is cooled by the cooling corpses of nine people.
取替式鉱石受蓋物１と冷却板２とのｔｔｉ＋には通常間
隙が存在し・吠抜ｔ１時にはこの間隙を高炉ガスが所謂
“Ｍ風″となって遡遇し鉱石受戴物の温度がガス温度肛
くまで昇温する心配かりる為に、不定形耐火物（キャス
タプルン圧入タップ１３ｉ設を７前述の間隙ヲ不定形耐
火ｗ５で充填する。この不定形耐火物充填は６裏風”防
止のみならず間接的に取替式鉱石受金物１を冷却板２に
より冷却する効果を有している。There is usually a gap between tti+ between the replaceable ore receiver 1 and the cooling plate 2, and at the time of baling t1, the blast furnace gas flows through this gap as a so-called "M wind" and the temperature of the ore receiver increases. In order to avoid the risk of the gas temperature rising to the bottom, fill the above-mentioned gap with monolithic refractory (Castaprun press-fit tap 13i setting) with monolithic refractory w5.This monolithic refractory filling prevents "6" back wind. In addition, the cooling plate 2 has the effect of indirectly cooling the replaceable ore receiver 1.
第２１１１＋に炉内側から見た取替式鉱石受金物１と水
冷鋳鉄置物からなる冷却板２を示す。2111+ shows the replaceable ore receiver 1 and the cooling plate 2 consisting of a water-cooled cast iron ornament as seen from the inside of the furnace.
第３図に炉内ガス温［ｔｇが変化した時、鉱石受金物と
冷却版間の隙間が雰囲気ガスの場合Ａ、及び不定形耐火
物で充填された場合Ｂについて、鉱石受１１２＠の表面
、背面、冷却板表面の谷＠麓の解析例を示した。この図
が分るとおシ鉱石受菫物の温度が低下し、その効果が顕
著に現われている。Figure 3 shows the surface of the ore receiver 112@ when the furnace gas temperature [tg changes, A when the gap between the ore receiver and the cooling plate is filled with atmospheric gas, and B when the gap is filled with monolithic refractories. , an analysis example of the valley @ foot of the back surface and the cooling plate surface is shown. As you can see from this figure, the temperature of the ore-bearing material has decreased, and this effect is clearly visible.
第４図は鉱石受戴物１の背面を部分的に冷却板２によっ
てカバーし、高炉装入原料６の安息角）により生ずる原
料ストックライン８に鉱石受並物１が部分的［１１まる
様な場合の冷却板２の設置例を示す。原料にｉ！！！ま
らない範囲に於ては、従来方式の固雉式鉱石受雀物９ｔ
−鉱石受戴物１のバックアツプ材として配置している。FIG. 4 shows that the back side of the ore receiver 1 is partially covered by the cooling plate 2, and the ore receiver 1 is partially covered with the raw material stock line 8 caused by the angle of repose of the blast furnace charge material 6. An example of installing the cooling plate 2 in such a case is shown below. i for raw materials! ! ! In the area where it is not suitable, 9 tons of conventional hard pheasant type ore receptacles are used.
- It is arranged as a back-up material for the ore receiver 1.
第５図はＡ４図の実ｈｌ！１例に於ける炉内面側から見
た図を示す。Figure 5 is an actual A4 size hl! The figure shown from the inside of the furnace in one example is shown.
（発明の効果〕
本発明により鉱石受金物の温度を常に炉内ガス温度ｔ
ｇ （’ＣＪ Ｘ （０，６〜０．７〕のレベルに低減
１定できる為Ｋｍ属材料としての鉱石受公物の寿砧を従
来構造に比較し飛躍的に延ばすことが可能となった。(Effect of the invention) According to the present invention, the temperature of the ore receiver is always adjusted to the furnace gas temperature t.
g ('CJ
第１図は本発明になる鉱石受並すで設置し几高炉？口部
の断面図、第２図は本発明になる鉱石受金物と水冷鋳鉄
輩物からなる冷却板を炉内側から見た図、５ｇ３図は不
発明になる鉱石受正物の温反解析結果例を示す図、第４
図は本発明になる鉱石受並ｖＪｔ″設賦した別の実扇例
図、第５図は第４図を炉内側から見７ｃ図Ｓ第６図は促
米方式の固足式鉱石受並物の組立−１第１図は従来方式
の取替式鉱石受蓋物の組立図である。
１・・ ・・・取替式鉱石受蓋物
２・・・・・水冷釣鉄缶物からなる冷却板３・・・・・
高炉鉄皮
４・・・・・冷却板に鋳込まれた鋼管
５・・・・・不定形耐火物（キャスタプルン６・ ・・
・・高炉装入原料
）・・・・・安息角
８・・・・ ・ストックライン
９・・ ・・固定式鉱石受釜物
１０・・・・鋳鉄ｙｂ型ブロック
１１・・・・固定式鉱石受菫物のバックステー１２・・
・・１口部煉瓦
１′、Ｓ・・・ ・不定形耐火物圧入用タップ１４・１
１・チェーン
第２図
第３図
第４凶
第５図
第６図Figure 1 shows a blast furnace installed in parallel with the ore receiver according to the present invention? A cross-sectional view of the mouth part, Figure 2 is a view of the cooling plate consisting of the ore receiver of the present invention and a water-cooled cast iron member, viewed from inside the furnace, and Figure 5g3 is the hot reaction analysis result of the ore receiver of the invention. Illustration showing an example, 4th
The figure shows another example of an actual fan in which the ore tray vJt'' according to the present invention is installed. Figure 5 is a view of Figure 4 from the inside of the furnace. Assembling the product - 1 Figure 1 is an assembly diagram of a conventional replaceable ore receiver. 1...Replaceable ore receiver 2... Cooling consisting of a water-cooled fishing iron can Board 3...
Blast furnace shell 4...Steel pipe cast into the cooling plate 5...Unshaped refractories (Casta Prun 6...
...Angle of repose 8...Stock line 9...Fixed ore receiver pot 10...Cast iron yb type block 11...Fixed ore Backstay 12 of the violet...
・1 mouth brick 1', S... ・Tap for press-fitting monolithic refractories 14.1
1.Chain 2nd figure 3rd figure 4th figure 5th figure 6th figure
Claims (1)
介して炉外へ取替え自在にした鉱石受金物に於て、上記
鉱石受金物の背面（炉外側の面）に水冷パイプを内蔵し
た冷却板を配設し、該冷却板を高炉鉄皮に支持せしめる
と共に、鉱石受金物と冷却板との間隙に不定形耐火物を
充填せしめる如くなしたことを特徴とする高炉用鉱石受
金物In the ore receiver, which is installed on the inner peripheral surface of the furnace top and can be replaced outside the furnace through an opening formed in the furnace wall, a water cooling pipe is installed on the back of the ore receiver (on the outside surface of the furnace). A blast furnace ore characterized in that a cooling plate with a built-in cooling plate is provided, the cooling plate is supported by a blast furnace shell, and a gap between the ore receiver and the cooling plate is filled with a monolithic refractory. Receipt
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24872284A JPS61127802A (en) | 1984-11-27 | 1984-11-27 | Ore receiving hardware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24872284A JPS61127802A (en) | 1984-11-27 | 1984-11-27 | Ore receiving hardware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61127802A true JPS61127802A (en) | 1986-06-16 |
Family
ID=17182369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24872284A Pending JPS61127802A (en) | 1984-11-27 | 1984-11-27 | Ore receiving hardware |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61127802A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU90649B1 (en) * | 2000-10-04 | 2002-04-05 | Wurth Paul Sa | Shock crown for a blast furnace |
-
1984
- 1984-11-27 JP JP24872284A patent/JPS61127802A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU90649B1 (en) * | 2000-10-04 | 2002-04-05 | Wurth Paul Sa | Shock crown for a blast furnace |
| WO2002029122A1 (en) * | 2000-10-04 | 2002-04-11 | Paul Wurth S.A. | Throat armour for a blast furnace |
| CZ298922B6 (en) * | 2000-10-04 | 2008-03-12 | Paul Wurth S. A. | Throat amour for a blast furnace |
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