JPH047175Y2 - - Google Patents
Info
- Publication number
- JPH047175Y2 JPH047175Y2 JP3727787U JP3727787U JPH047175Y2 JP H047175 Y2 JPH047175 Y2 JP H047175Y2 JP 3727787 U JP3727787 U JP 3727787U JP 3727787 U JP3727787 U JP 3727787U JP H047175 Y2 JPH047175 Y2 JP H047175Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve body
- valve
- blast furnace
- branch pipe
- castable
- 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
Links
- 239000000463 material Substances 0.000 claims description 22
- 239000011810 insulating material Substances 0.000 claims description 4
- 239000011823 monolithic refractory Substances 0.000 claims description 4
- 238000004901 spalling Methods 0.000 claims description 4
- 239000011449 brick Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000001816 cooling Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 229910052878 cordierite Inorganic materials 0.000 description 2
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
Landscapes
- Blast Furnaces (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は高炉送風支管での風量制御の為に設置
する高炉送風支管における風量制御弁に関するも
のである。[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to an air volume control valve in a blast furnace ventilation branch pipe, which is installed to control the air volume in the blast furnace ventilation branch pipe.
（従来の技術）
高炉送風支管の一般的な構造断面図を第５図に
示す。(Prior Art) A general structural sectional view of a blast furnace branch pipe is shown in FIG.
高炉本体９へ高温空気を供給する為に、送風支
管８は熱風環状管１及び羽口１０の間に設置され
るＡ管２、伸縮管３、Ｂ管４、Ｃ管５、リユーゼ
ンストツク６、ブローパイプ７より構成されてい
る。 In order to supply high-temperature air to the blast furnace main body 9, a blower branch pipe 8 is installed between the hot air annular pipe 1 and the tuyere 10. , a blow pipe 7.
この送風支管８中の高温空気量を制御する方法
しては特公昭59−6891号公報に示されているもの
がある。この従来技術を第６図に示すが、これは
第５図に示すリユーゼンストツク６の縦孔通路２
９と横孔通路３０の交差部に設置するものであ
る。この交差部は他所同様に鉄皮２０の内部に耐
火製ライニング材２１が施工されており、交差部
の後端部から弁体２２が挿入されている。 A method for controlling the amount of high-temperature air in the blower branch pipe 8 is disclosed in Japanese Patent Publication No. 59-6891. This prior art is shown in FIG.
9 and the horizontal hole passage 30. At this intersection, a fireproof lining material 21 is installed inside the iron skin 20, as in other places, and a valve body 22 is inserted from the rear end of the intersection.
この弁体２２は第８図に示す様に、円筒状を有
するもので、軸中心には羽口測定用貫通孔２５が
穿設されているとともに、先端部には軸線に直交
する断面が円弧状を有する弁部２３が連接され、
この弁部２３はリユーゼンストツク６における縦
孔通路２９の横孔通路３０に開口する開口部３１
の開口縁に摺接して該縦孔通路２９を開閉する構
造としている。 As shown in FIG. 8, this valve body 22 has a cylindrical shape, and a through hole 25 for tuyere measurement is bored in the center of the shaft, and a cross section perpendicular to the axis is circular at the tip. Valve portions 23 having an arc shape are connected,
This valve portion 23 has an opening 31 that opens into a horizontal hole passage 30 of a vertical hole passage 29 in the reusen stock 6.
The structure is such that the vertical hole passage 29 is opened and closed by slidingly contacting the opening edge of the vertical hole passage 29.
すなわち第７図に示す様に前記弁部２３の円弧
面を有する外周面の幅は、縦孔通路２９の開口部
３１の開口縁に摺接してこれを閉塞し得る幅を有
し、該弁体２２を回転変位させることにより弁部
２３の側縁部と開口縁との間に形成される隙間面
積により縦孔通路２９の開口面積を可変とするも
のである。 That is, as shown in FIG. 7, the width of the outer circumferential surface of the valve portion 23 having an arcuate surface is such that it can slide against and close the opening edge of the opening 31 of the vertical hole passage 29. By rotationally displacing the body 22, the opening area of the vertical hole passage 29 is made variable by the gap area formed between the side edge of the valve portion 23 and the opening edge.
弁体２２と一体構造となつている弁軸２４は漏
風を防ぐ為のシール材２６を有した軸受２７より
回転自在に支持され、弁軸２４の突出端部には弁
体２２に回転を与える為の操作部材２８が設けら
れている。 The valve shaft 24, which is integrally constructed with the valve body 22, is rotatably supported by a bearing 27 having a sealing material 26 for preventing air leakage, and the protruding end of the valve shaft 24 imparts rotation to the valve body 22. An operating member 28 is provided for this purpose.
（考案が解決しようとする問題点）
送風支管は他所に比べてライニング厚みが薄
く、高炉の休止時は放熱し易く短時間で常温近く
まで冷却される箇所である。(Problem that the invention aims to solve) The lining of the blast branch pipe is thinner than that of other parts, and when the blast furnace is not in use, it is easy to dissipate heat and is cooled down to near room temperature in a short period of time.
又送風開始と共に急激に昇温される箇所でもあ
る。つまり送風支管は急熱、急冷による熱的スポ
ーリングを起こし易いところなのである。 It is also a place where the temperature rises rapidly when the air starts being blown. In other words, the ventilation branch pipes are prone to thermal spalling due to rapid heating and cooling.
こういう箇所には熱的スポーリングに対し、安
定する構造及び材質の選定が重要な課題となる。
従来技術である第８図の弁体２２では弁部２３を
肉厚の薄い円弧状にしなくてはならない為、単一
材料で構成されていると考えられる。 For these locations, it is important to select structures and materials that are stable against thermal spalling.
In the prior art valve body 22 shown in FIG. 8, the valve portion 23 must be formed into a thin circular arc shape, so it is considered that the valve body 22 is made of a single material.
材質については耐熱材料製と記されているが、
単一材料による構成ならば熱的スポールにより、
クラツクが発生しそのまま脱落につながることが
懸念される構造であると判断される。 Regarding the material, it is stated that it is made of heat-resistant material, but
If the structure is made of a single material, thermal spall will cause
It is judged that the structure is such that there is a concern that cracks may occur and lead to falling off.
つまり一般的な耐火材であるならばクラツクが
発生しても脱落や著しい形状の変化にまで至らな
い構造にする為に背筋材を内部に埋め込む必要が
ある。弁部２３に背筋材を考慮させた構造とする
と、肉厚が増加し、全開時における隙間面積が減
少となり圧損増加によるエネルギーロスにつなが
るという悪影響を及ぼす結果となる。 In other words, if it is a general fireproof material, it is necessary to embed a backing material inside the structure to prevent it from falling off or significantly changing its shape even if a crack occurs. If the valve portion 23 is structured to take into account the backrest material, the wall thickness will increase and the gap area will decrease when fully opened, resulting in an adverse effect of energy loss due to increased pressure loss.
セラミツク等の新素材によるものでは高価であ
るばかりでなく、現状では長期にわたる信頼性に
も乏しいといえる。 New materials such as ceramics are not only expensive, but also lack long-term reliability.
（問題点を解決するための手段）
前述の問題点を解決するために本考案の構成で
は、高炉送風支管での風量制御の為に設置する高
炉送風支管における風量制御弁に於いて、回転さ
せることにより流路面積を可変とする弁体が、球
形状の外形に円筒形の開口を有し、内部に冷却可
能な背筋材を配置し、その外面を高密度で可縮性
を有する断熱材及び耐スポール性を有する不定形
耐火物で被覆成形した耐火構造を有することを特
徴とする高炉送風支管における風量制御弁であ
る。なお上記弁体には安価でかつ耐熱スポール性
に優位な不定形耐火物を選定することが肝要であ
る。それにはコージエライト質キヤスタブル
（Al2O3＋SiO2＋MgO）が適している。(Means for Solving the Problems) In order to solve the above-mentioned problems, the configuration of the present invention is such that the air volume control valve in the blast furnace air branch pipe, which is installed to control the air volume in the blast furnace air branch pipe, is rotated. The valve body, which makes the flow path area variable, has a cylindrical opening in a spherical outer shape, a cooling backing material is placed inside, and the outer surface is covered with a high-density, compressible heat insulating material. The present invention is an air flow control valve in a blast furnace blowing branch pipe, characterized by having a fireproof structure coated with a monolithic refractory having spall resistance. Note that it is important to select a monolithic refractory material that is inexpensive and has superior heat spall resistance for the above-mentioned valve body. Cordierite castable (Al 2 O 3 +SiO 2 +MgO) is suitable for this purpose.
（作用）
本考案の風量制御弁４０の弁体は冷却可能な背
筋材を埋め込む為の肉厚が確保出来る球形状の外
形に円筒形の開口を有するボール弁構造を適用す
る為、弁体の回転が良好であり流量の制御性は良
好となるものとなる。(Function) The valve body of the air volume control valve 40 of the present invention has a ball valve structure with a cylindrical opening and a spherical outer shape that can ensure a wall thickness for embedding a coolable backing material. The rotation is good and the controllability of the flow rate is good.
また背筋材と弁体耐火物間には高密度で可縮性
を有する断熱材が組み込みまれている。従つて弁
体耐火物内の急激な温度勾配の緩和が図られ、こ
の部分に発生するクラツクを防止するように作用
する。 Furthermore, a high-density, compressible heat insulating material is incorporated between the backrest material and the valve body refractory. Therefore, the rapid temperature gradient within the valve body refractory is alleviated, and this acts to prevent cracks from occurring in this area.
尚弁体との隙間を３mm程度とすることにより、
弁体の回転による流量の制御性は良好となるもの
となる。 By setting the gap with the valve body to about 3 mm,
The controllability of the flow rate by rotating the valve body becomes better.
（実施例）
以下図面に示す実施例に基づいて本考案を説明
する。(Example) The present invention will be described below based on an example shown in the drawings.
第１図に高炉送風支管のＢ管４とリユーゼンス
トツク６との間に設置された風量制御弁４０の実
施例を示す。又第２図には第１図のＡ−Ａ線断面
図、第３図には第１図のＢ−Ｂ線断面図、第４図
には第３図における弁体の詳細図を示す。 FIG. 1 shows an embodiment of the air volume control valve 40 installed between the B pipe 4 of the blast furnace branch pipe and the reusen stock 6. Further, FIG. 2 shows a sectional view taken along the line A--A in FIG. 1, FIG. 3 shows a sectional view taken along the line B--B in FIG. 1, and FIG. 4 shows a detailed view of the valve body in FIG. 3.
第１図〜第４図に記載のごとく球形状の外形に
円筒形の開口４２′を有する弁体キヤスブル４２
は水冷されている駆動側軸４８、反駆動側軸４９
及び弁体フレーム４６が背筋材として形成されて
いる。そしてその背筋材と弁体キヤスタブル４２
との間には高密度で可縮性を有する断熱材である
セラミツククロス５８が組込まれている。又弁体
キヤスタブル４２の支持効果を増強する為に背筋
材である駆動側軸４８、反駆動側軸４９及び弁体
フレーム４６にはスタツド６５が施工されてい
る。 A valve body cable 42 having a spherical outer shape and a cylindrical opening 42' as shown in FIGS. 1 to 4
are water-cooled drive side shaft 48 and non-drive side shaft 49
A valve body frame 46 is formed as a backrest member. And its spine material and valve body castable 42
A ceramic cloth 58, which is a high-density and compressible heat insulating material, is installed between the two. Further, in order to enhance the supporting effect of the valve body castable 42, studs 65 are installed on the drive side shaft 48, the non-drive side shaft 49, and the valve body frame 46, which are back reinforcement members.
弁体フレーム４６は弁体キヤスタブル４２の円
筒開口とは直角方向の球体中心平面における最大
厚肉部に沿つた円筒状リングを形成し、水冷する
ことにより熱膨脹を押さえ、背筋材としての強度
を保持している。 The valve body frame 46 forms a cylindrical ring along the thickest part in the center plane of the sphere in a direction perpendicular to the cylindrical opening of the valve body castable 42, and is water-cooled to suppress thermal expansion and maintain strength as a backing material. are doing.
又弁体フレーム４６と弁体キヤスタブル４２と
の間のセラミツククロス５８は断熱効果による弁
体キヤスタブル４２の温度勾配を緩和するだけで
なく、弁体フレーム４６の熱膨脹及び弁体キヤス
タブル４２の熱膨脹を吸収するとともに弁体フレ
ーム４６と弁体キヤスタブル４２間のずれの発生
を高密度効果により防止し密着させ、弁体キヤス
タブル４２の保持力を強固にしている。 Furthermore, the ceramic cloth 58 between the valve body frame 46 and the valve body castable 42 not only alleviates the temperature gradient of the valve body castable 42 due to its insulation effect, but also absorbs the thermal expansion of the valve body frame 46 and the valve body castable 42. At the same time, the occurrence of misalignment between the valve body frame 46 and the valve body castable 42 is prevented by the high-density effect, and the valve body castable 42 is brought into close contact with the valve body frame 46, thereby strengthening the holding force of the valve body castable 42.
尚、弁体フレーム４６は弁体キヤスタブル４２
の構造安定化に伴う肉厚確保の為や水冷による放
熱抑制の為、断面積を最小に留めている。 Note that the valve body frame 46 is connected to the valve body castable 42.
The cross-sectional area is kept to a minimum in order to ensure wall thickness to stabilize the structure and to suppress heat dissipation through water cooling.
背筋材の冷却は駆動側軸端部の軸給水口６７よ
り行われ、軸内部仕切板６９の片方が往路、他方
が復路を成し、軸排水口６８より排水される。 Cooling of the back reinforcement material is carried out through a shaft water supply port 67 at the end of the shaft on the drive side, one side of the shaft internal partition plate 69 forms an outgoing path, the other forms a return path, and water is drained through a shaft drain port 68.
弁体キヤスタブル４２は駆動用シリンダ７１の
前進後退運動により回転レバー４７及び駆動側軸
４８を介して回転運動し、弁箱の通路面積を可変
することにより、風量制御を行うものである。 The valve body castable 42 rotates through the rotary lever 47 and the drive-side shaft 48 by the forward and backward movement of the driving cylinder 71, and controls the air volume by varying the passage area of the valve box.
尚駆動側軸４８及び反駆動側軸４９の回転は弁
箱ケーシング４１に固定された各々の軸受ハウジ
ング５２，５３内のすべり軸受５０，５１を介し
て行われるものである。又駆動側軸４８の軸シー
ルはグランドパツキン７３を押え金物７２で圧着
させることにより行われている。軸受ハウジング
５２，５３は各々の冷却水配管５４，５５及び５
６，５７より冷却水を導入することにより周囲を
冷却、熱膨脹を押さえている。 Note that the rotation of the drive side shaft 48 and the non-drive side shaft 49 is performed via sliding bearings 50 and 51 in respective bearing housings 52 and 53 fixed to the valve box casing 41. Further, shaft sealing of the drive side shaft 48 is achieved by pressing the gland packing 73 with a presser metal fitting 72. The bearing housings 52, 53 are connected to respective cooling water pipes 54, 55 and 5.
By introducing cooling water from 6 and 57, the surrounding area is cooled and thermal expansion is suppressed.
軸の回転やシール部に必要なグリースは給脂溝
６３，６４を介してすべり軸受５０，５１及びラ
ンタンリング７０に導入されている。 Grease necessary for shaft rotation and sealing is introduced into the sliding bearings 50, 51 and the lantern ring 70 via greasing grooves 63, 64.
弁体キヤスタブル４２の回転角度は、軸受ハウ
ジング５２に固定された目盛板６２と駆動側軸４
８に固定された指針６１とで表示している。 The rotation angle of the valve body castable 42 is determined by the scale plate 62 fixed to the bearing housing 52 and the drive side shaft 4.
8 and a pointer 61 fixed at 8.
弁箱煉瓦４３は弁体キヤスタブル４２との隙間
６６を３mm程度確保した形状に製作する。 The valve box brick 43 is manufactured in a shape that ensures a gap 66 of about 3 mm with the valve body castable 42.
又弁箱煉瓦４３は縦３段で円周４分割構造とし
ているが、弁体キヤスタブル４２との位置合わせ
の為、弁箱ケーシング４１に接続する弁箱煉瓦受
金物５９及び調整モルタル６０を下端に設けてい
る。弁箱煉瓦４３と弁箱ケーシング４１との間は
断熱キヤスタブル４４を充填し、外部への放熱を
押さえると共に弁箱煉瓦４３を固定している。 Further, the valve box brick 43 has a structure of three vertical stages and four circumferentially divided structures, but in order to align with the valve body castable 42, the valve box brick support 59 and adjustment mortar 60 connected to the valve box casing 41 are placed at the lower end. It is set up. A heat insulating caster 44 is filled between the valve box brick 43 and the valve box casing 41 to suppress heat radiation to the outside and to fix the valve box brick 43.
更に本制御弁の下部に相当する様な熱風に直接
接触するが内面形状が単純で不定形耐火物にて成
形可能な箇所は、キヤスタブルにて対処してい
る。尚材料については、弁体キヤスタブル４２、
弁箱煉瓦４３及び弁箱下部キヤスタブル４５を
Al2O3、SiO2、MgOが主成分となり耐熱的スポ
ール性に富んだコージエライト質にしている。 Furthermore, parts such as the lower part of this control valve, which are in direct contact with hot air but have a simple inner shape and can be molded with monolithic refractories, are made of castable material. Regarding the materials, valve body castable 42,
Valve box brick 43 and valve box lower castable 45
The main components are Al 2 O 3 , SiO 2 , and MgO, making it a cordierite material with excellent heat-resistant spalling properties.
（発明の効果）
高炉送風支管に風量制御弁を導入することによ
り、高炉の円周バランス制御が可能となり、その
効果として操業の安定化及び燃料比の低減化が図
れる。こうした効果を十分発揮する為に本発明に
よる制御弁を採用すれば更に以下の効果が発生す
る。(Effects of the Invention) By introducing an air flow control valve into the blast furnace blast branch pipe, it becomes possible to control the circumferential balance of the blast furnace, and as a result, it is possible to stabilize the operation and reduce the fuel ratio. If the control valve according to the present invention is adopted to fully exhibit these effects, the following effects will also occur.
特殊な耐火材料を用いてない為安価で製造出
来る。 It can be manufactured at low cost because it does not use special fireproof materials.
耐熱的スポール性を十分配慮した構造である
から長寿命である。 It has a long lifespan because it has a structure that takes heat-resistant spall properties into consideration.
水冷箇所が狭小であり、断熱効果を十分配慮
した構造である為、放熱量が極めて小さい。 The water cooling area is small and the structure takes into consideration the heat insulation effect, so the amount of heat dissipated is extremely small.
ボール弁構造である為、流量の制御性は良好
である上に、制御弁全開時での圧力損失は皆無
である。 Due to the ball valve structure, not only is flow rate controllable, but there is no pressure loss when the control valve is fully open.
直管部ならどこでも設置可能である。 It can be installed anywhere on a straight pipe.
高炉送風支管のみならず1300℃以下のガスの
流量制御が必要な箇所には適用可能である。 It can be applied not only to blast furnace branch pipes, but also to locations where flow control of gas below 1300°C is required.
第１図は本考案による風量制御弁を送風支管に
配置した断面図、第２図は第１図に於ける風量制
御弁のＡ−Ａ線拡大断面図、第３図は第１図のＢ
−Ｂ線拡大断面図、第４図は第３図に於ける風量
制御弁弁体の詳細拡大断面図、第５図は高炉送風
支管における一般構造断面図、第６図は従来技術
による制御弁全体構造断面図、第７図は第６図の
Ｃ−Ｃ線断面図、第８図は第６図の弁体構造図を
示す斜視図である。
１は熱風環状管、２はＡ管、３は伸縮管、４は
Ｂ管、５はＣ管、６はリユーゼンストツク、７は
ブローパイプ、８は送風支管、９は高炉本体、１
０は羽口、２０は鉄皮、２１は耐火製ライニング
材、２２は弁体、２３は弁部、２４は弁軸、２５
は羽口測定用貫通孔、２６はシール材、２７は軸
受、２８は操作部材、２９は縦孔通路、３０は横
孔通路、３１は開口部、４０は風量制御弁、４１
は弁箱ケーシング、４２は弁体キヤスタブル、４
２′は弁体の開口部、４３は弁箱煉瓦、４４は断
熱キヤスタブル、４５は弁箱下部キヤスタブル、
４６は弁体フレーム、４７は回転レバー、４８は
駆動側軸、４９は反駆動側軸、５０，５１はすべ
り軸受、５２，５３は軸受ハウジング、５４〜５
７は冷却水配管、５８はセラミツククロス、５９
は弁箱煉瓦受金物、６０は調整モルタル、６１は
指針、６２は目盛板、６３，６４は給脂溝、６５
はスタツド、６６は隙間、６７は軸給水口、６８
は軸排水口、６９は軸内部仕切板、７０はランタ
ンリング、７１は駆動用シリンダ、７２は押え金
物、７３はグランドパツキン。
Fig. 1 is a sectional view of the air volume control valve according to the present invention arranged in a blower branch pipe, Fig. 2 is an enlarged sectional view taken along the line A-A of the air volume control valve in Fig. 1, and Fig. 3 is B of Fig. 1.
-B line enlarged sectional view, Fig. 4 is a detailed enlarged sectional view of the air volume control valve valve body in Fig. 3, Fig. 5 is a general structural sectional view of the blast furnace blast branch pipe, and Fig. 6 is a control valve according to the prior art. FIG. 7 is a cross-sectional view of the entire structure, FIG. 7 is a cross-sectional view taken along the line CC in FIG. 6, and FIG. 8 is a perspective view showing the valve body structure of FIG. 6. 1 is a hot air annular pipe, 2 is an A pipe, 3 is an expansion pipe, 4 is a B pipe, 5 is a C pipe, 6 is a reusen stock, 7 is a blow pipe, 8 is a blower branch pipe, 9 is a blast furnace main body, 1
0 is a tuyere, 20 is an iron skin, 21 is a fireproof lining material, 22 is a valve body, 23 is a valve part, 24 is a valve stem, 25
26 is a sealing material, 27 is a bearing, 28 is an operating member, 29 is a vertical hole passage, 30 is a horizontal hole passage, 31 is an opening, 40 is an air volume control valve, 41
is the valve box casing, 42 is the valve body castable, 4
2' is the opening of the valve body, 43 is the valve box brick, 44 is the insulation castable, 45 is the valve box lower castable,
46 is a valve body frame, 47 is a rotary lever, 48 is a drive side shaft, 49 is a non-drive side shaft, 50, 51 are sliding bearings, 52, 53 are bearing housings, 54-5
7 is cooling water pipe, 58 is ceramic cloth, 59
60 is an adjustment mortar, 61 is a pointer, 62 is a scale plate, 63 and 64 are greasing grooves, 65
is the stud, 66 is the gap, 67 is the shaft water supply port, 68
1 is a shaft drain port, 69 is a partition plate inside the shaft, 70 is a lantern ring, 71 is a driving cylinder, 72 is a presser foot, and 73 is a gland packing.
Claims (1)
送風支管における風量制御弁に於いて、回転させ
ることにより流路面積を可変とする弁体が、球形
状の外形に円筒形の開口を有し、内部に冷却可能
な背筋材を配置し、その外面を高密度で可縮性を
有する断熱材及び耐スポール性を有する不定形耐
火物で被覆成形した耐火構造を有することを特徴
とする高炉送風支管における風量制御弁。 In the air volume control valve installed in the blast furnace air branch pipe, which is installed to control the air volume in the blast furnace air branch pipe, the valve body that changes the flow path area by rotating has a cylindrical opening in a spherical outer shape. A blast furnace air blower characterized by having a fireproof structure in which a coolable backing material is arranged inside and the outer surface is coated with a high-density, compressible heat insulating material and a monolithic refractory having spalling resistance. Air flow control valve in branch pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3727787U JPH047175Y2 (en) | 1987-03-16 | 1987-03-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3727787U JPH047175Y2 (en) | 1987-03-16 | 1987-03-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63145847U JPS63145847U (en) | 1988-09-27 |
| JPH047175Y2 true JPH047175Y2 (en) | 1992-02-26 |
Family
ID=30848463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3727787U Expired JPH047175Y2 (en) | 1987-03-16 | 1987-03-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH047175Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU91764B1 (en) * | 2010-12-10 | 2012-06-11 | Wurth Paul Sa | Tuyere stock of a shaft furnace and hot gas distribution system comprising a plurality of such tuyere stocks |
-
1987
- 1987-03-16 JP JP3727787U patent/JPH047175Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63145847U (en) | 1988-09-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR960010245B1 (en) | Rotary sliding gate valve for a metallurgical vessel and a rotor and stator for such a rotary valve | |
| US4010775A (en) | High temperature valve | |
| US3330546A (en) | Means for holding kiln brick within a rotary kiln | |
| AU2003221812A1 (en) | Induction furnace for high temperature operation | |
| JPH047175Y2 (en) | ||
| CA2013083A1 (en) | Means of controlling gas flows in vacuum furnaces | |
| CA1339523C (en) | Rotary valve for a metallurgical vessel | |
| US4437415A (en) | Burner block assembly for industrial furnaces | |
| EP0972975B1 (en) | High-temperature high-pressure liquid flow control valve and method of preventing fixing of its stem | |
| JPS61199007A (en) | Hot air valve | |
| KR101676680B1 (en) | Hot Blast Control Valve for a Metallurgical Installation | |
| JP2002220609A (en) | Stave cooler and stave body on tuyere part of furnace | |
| JP2001220612A (en) | Hot air outlet pipe for blast furnace | |
| JP3078734B2 (en) | Butterfly valve for high temperature fluid | |
| JPH026388B2 (en) | ||
| JPH1112618A (en) | Method for retaining heat of hot blast valve at the time of repairing blast furnace | |
| JPH02233903A (en) | Control damper for internal pressure of furnace | |
| JPH0894029A (en) | Burner | |
| JP3058532B2 (en) | Ceramic ventilation control valve | |
| JPH0320628B2 (en) | ||
| SU1028990A1 (en) | Rotating furnace | |
| JPH028133Y2 (en) | ||
| JPS6256508A (en) | Heat retaining method for hot stove | |
| JP2001248974A (en) | High temperature atmospheric gas generator | |
| JPS60121209A (en) | Hot wind flow control device to wind supply duct of shaft furnace and duct equipped therewith |