JPH0826385B2 - Movable hot metal ladle dust collector - Google Patents
Movable hot metal ladle dust collectorInfo
- Publication number
- JPH0826385B2 JPH0826385B2 JP16314591A JP16314591A JPH0826385B2 JP H0826385 B2 JPH0826385 B2 JP H0826385B2 JP 16314591 A JP16314591 A JP 16314591A JP 16314591 A JP16314591 A JP 16314591A JP H0826385 B2 JPH0826385 B2 JP H0826385B2
- Authority
- JP
- Japan
- Prior art keywords
- hot metal
- dust
- metal ladle
- dust collector
- side walls
- 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 - Fee Related
Links
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Description
【0001】[0001]
【産業上の利用分野】この発明は、溶銑鍋中の溶銑を覆
うスラグを掻き取るときに発生する塵埃を、集塵する際
に使用する移動式溶銑鍋集塵装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable hot metal ladle dust collecting device used for collecting dust generated when scraping slag covering hot metal in a hot metal ladle.
【0002】[0002]
【従来の技術】高炉から出銑した溶銑は溶銑鍋に収容さ
れ、製鋼工場まで運ばれ、精錬のため転炉に装入され
る。溶銑鍋の溶銑の上面は、出銑時に混入したスラグや
溶銑を保温するための発熱材の燃え滓で覆われている
が、これらが転炉に装入されると鋼中の不純物(P、S
等)が増加するため、転炉装入前に溶銑鍋を傾斜させス
ラグや発熱材の燃え滓を掻き板で掻き落とす(ノロ掻き
と称している)ようにしている。2. Description of the Related Art The hot metal tapped from a blast furnace is stored in a hot metal ladle, transported to a steelmaking plant, and charged into a converter for refining. The upper surface of the hot metal of the hot metal ladle is covered with the slag mixed during tapping and the slag of the exothermic material to keep the hot metal warm, but when these are charged into the converter, impurities (P, S
Etc.), so that the hot metal ladle is tilted before the converter is charged to scrape off the slag and the slag of the heating material with a scraping plate (referred to as slag scraping).
【0003】上述したノロ掻き作業においては、従来掻
き取ったノロはノロ受鍋に掻き落とすが、落下途中のノ
ロの一部は空気に触れて冷却され、流体から固体に変化
し粉塵となる。この粉塵は周辺に高温に基づく上昇気流
が発生しているため、大気中に上方まで飛散することが
多く、作業環境の悪化を引き起こすとともに、公害をも
たらすことになり、発塵を防止する必要がある。In the above-mentioned slag scraping work, the slag that has been conventionally scraped is scraped off to the slag pan, but a part of the slag that is in the process of being dropped is brought into contact with the air to be cooled and changed from a fluid to a solid to become dust. Since this dust has an upward airflow due to high temperature around it, it often scatters upward in the atmosphere, causing a deterioration of the work environment and causing pollution, so it is necessary to prevent dust generation. is there.
【0004】従来ノロ掻き作業中に発生する粉塵の内下
方に落ちていく粉塵は、固定式フードを通して集塵する
ようにしていたが、上方に舞い上がる粉塵は集塵してい
なかった。Conventionally, the dust that has fallen inward and downward of dust generated during the scraping work has been collected through a fixed hood, but the dust that rises upward has not been collected.
【0005】[0005]
【発明が解決しようとする課題】従来からある固定式フ
ードで、ノロ掻き作業中に発生する粉塵の内の上方に舞
い上がる粉塵を集塵しようとすると、溶銑鍋を移動する
転炉ヤードの上方に約4m角で高さ5mの固定フードが
突き出した状態となるので、大型の溶銑鍋を移動させる
のに邪魔になるという問題点があった。With the conventional fixed hood, when dust that is flying upwards among dusts generated during the scraping work is to be collected, the dust is raised above the converter yard that moves the hot metal ladle. Since a fixed hood of about 4 m square and 5 m high protrudes, there is a problem in that it is an obstacle to moving a large hot metal ladle.
【0006】この発明は、従来技術の上述したような問
題点を解消し、ノロ掻き作業中に発生する粉塵の内の上
方に舞い上がる粉塵を集塵でき、しかも溶銑鍋の移動の
邪魔にならない移動式溶銑鍋集塵装置を提供することを
目的としている。The present invention solves the above-mentioned problems of the prior art, and can collect the dust that rises upward among the dust generated during the scraping work, and does not interfere with the movement of the hot metal ladle. An object is to provide a dust collector for a hot metal ladle.
【0007】[0007]
【課題を解決するための手段】この発明に係る移動式溶
銑鍋集塵装置は、下方に開口した開口部を有する走行台
車上に走行台車の走行方向と平行に2枚の側壁を対向さ
せ、この対向させた2枚の側壁間にエアー吹出孔を穿設
したエアー吹出パイプを複数本配設して人工竜巻を発生
させるように構成するとともに、前記2枚の側壁の上端
間に排気孔を有するフードを設け、人工竜巻により前記
開口部から吸引された溶銑鍋の粉塵を前記排気孔を通し
て集塵機に送るようにしたものである。According to another aspect of the present invention, there is provided a movable hot metal ladle dust collector having two side walls facing each other in parallel with a traveling direction of a traveling carriage on a traveling carriage having an opening opening downward. A plurality of air blowout pipes having air blowout holes are provided between the two side walls facing each other so as to generate an artificial tornado, and an exhaust hole is provided between the upper ends of the two side walls. A hood having the above is provided, and the dust of the hot metal ladle sucked from the opening by the artificial tornado is sent to the dust collector through the exhaust hole.
【0008】[0008]
【作用】この発明に係る移動式溶銑鍋集塵装置は、走行
台車上に走行台車の走行方向と平行に2枚の側壁を対向
させ、この対向させた2枚の側壁間にエアー吹出孔を穿
設したエアー吹出パイプを複数本配設して人工竜巻を発
生させるように構成するとともに、前記2枚の側壁の上
端間に排気孔を有するフードを設けている。In the movable hot metal ladle dust collecting apparatus according to the present invention, two side walls are opposed to each other on the traveling carriage in parallel with the traveling direction of the traveling carriage, and an air blowout hole is provided between the two opposed side walls. A plurality of perforated air blowing pipes are arranged to generate an artificial tornado, and a hood having an exhaust hole is provided between the upper ends of the two side walls.
【0009】そして、溶銑鍋のノロ掻き作業中には、走
行台車を走らせて走行台車の開口部が溶銑鍋の上方に位
置するようにしてから、複数のエアー吹出パイプからエ
アーを吹き出して、対向させた2枚の側壁間に人工竜巻
を形成させる。ノロ掻き作業中に発生した粉塵のうち上
に舞い上がる粉塵は、前記人工竜巻により走行台車の開
口部から竜巻中に吸引され、フードの排気孔を通って集
塵機に送られる。During the work of scraping the hot metal ladle, the traveling carriage is run so that the opening of the traveling carriage is located above the hot metal ladle, and then air is blown from a plurality of air blowing pipes to face each other. An artificial tornado is formed between the two side walls. The dust that rises up among the dust generated during the scraping work is sucked into the tornado from the opening of the traveling carriage by the artificial tornado and sent to the dust collector through the exhaust hole of the hood.
【0010】ノロ掻き作業が終わると、走行台車を後退
させ溶銑鍋の移動の邪魔にならないようにする。After completion of the scraping work, the traveling carriage is moved backward so that it does not interfere with the movement of the hot metal ladle.
【0011】[0011]
【実施例】本発明の1実施例の移動式溶銑鍋集塵装置
を、図1に基づき説明する。本発明の1実施例の移動式
溶銑鍋集塵装置は、下方に開口した開口部1を有する走
行台車2上に走行台車2の走行方向と平行に2枚の側壁
3を対向させ、この対向させた2枚の側壁3間にエアー
吹出孔を穿設したエアー吹出パイプ4を複数本配設して
人工竜巻を発生させるように構成するとともに、前記2
枚の側壁3の上端間に排気孔5を有するフード6を設
け、人工竜巻により前記開口部1から吸引された溶銑鍋
21の粉塵を前記排気孔5および伸縮可能に構成した集
塵ダクト22を通して集塵機(図示せず)に送るように
したものである。なお、排気風量の調整は、ダンパー2
3の開度を変更することにより可能である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A moving type hot metal ladle dust collecting apparatus according to an embodiment of the present invention will be described with reference to FIG. The moving type hot metal ladle dust collector of one embodiment of the present invention has two side walls 3 facing each other in parallel to the traveling direction of the traveling carriage 2 on a traveling carriage 2 having an opening 1 opened downward. A plurality of air blowing pipes 4 each having an air blowing hole formed between the two side walls 3 are arranged to generate an artificial tornado.
A hood 6 having an exhaust hole 5 is provided between the upper ends of the side walls 3 of the sheets, and dust of the hot metal ladle 21 sucked from the opening 1 by an artificial tornado is passed through the exhaust hole 5 and a dust collection duct 22 configured to be expandable and contractible. It is designed to be sent to a dust collector (not shown). In addition, adjustment of exhaust air volume is done by damper 2
This is possible by changing the opening degree of 3.
【0012】走行台車2は、車輪7によりレール8上を
走行できるようになっており、ノロ掻き作業中は走行台
車2をレール8の先端部分まで移動させて、走行台車2
の開口部1が極力溶銑鍋21のノロ落下地点の真上にな
るようにする。そして、複数の(図1では4本)エアー
吹出パイプ4からエアーを吹き出して、人工竜巻を形成
させる。各エアー吹出パイプ4からエアーを吹き出す
と、各エアー吹出パイプ4からエアーを吹き出す方向に
向けてエアーカーテンが形成される。そして、それぞれ
のエアーカーテンは、複数のエアー吹出パイプ4の中間
に設定した仮想回転柱の接線方向を向いており、またエ
アー吹き出し方向は前記仮想回転柱の回転方向と同じに
なっている。The traveling carriage 2 can travel on the rails 8 by means of wheels 7, and the traveling carriage 2 is moved to the tip portion of the rails 8 during the scraping work so that the traveling carriage 2 can be moved.
The opening 1 of the above is set to be right above the noro drop point of the hot metal ladle 21 as much as possible. Then, air is blown out from a plurality of (four in FIG. 1) air blowing pipes 4 to form an artificial tornado. When air is blown from each air blow pipe 4, an air curtain is formed in a direction in which the air is blown from each air blow pipe 4. Each of the air curtains is oriented in the tangential direction of the virtual rotating column set in the middle of the plurality of air blowing pipes 4, and the air blowing direction is the same as the rotating direction of the virtual rotating column.
【0013】このようにすることにより、エアーカーテ
ンで囲まれた空間に旋回気流が発生し、これが人工竜巻
となり、走行台車2の開口部1からノロ掻き中に発生す
る粉塵を吸引するのである。そして、吸引された粉塵は
フード6に集められ、排気孔5を通って集塵機に送られ
る。By doing so, a swirling airflow is generated in the space surrounded by the air curtain, which becomes an artificial tornado, and the dust generated during the scraping is sucked from the opening 1 of the traveling carriage 2. Then, the sucked dust is collected in the hood 6 and sent to the dust collector through the exhaust hole 5.
【0014】2枚の側壁は、この集塵装置が縦横各4
m、高さ5mもあって大きいため、複数のエアー吹出パ
イプ4のみで人工竜巻を作り、集塵しようとしても周辺
の空気の流れに左右されて理想的な竜巻が形成されず、
集塵が上手くいかないので、2枚の側壁により空気の流
れの影響を絶つようにしたものである。This dust collecting device is provided on each of the two side walls, which is 4 in length and width.
Since it is large with m and height of 5 m, even if you try to make an artificial tornado with only a plurality of air blowing pipes 4 and try to collect dust, the ideal tornado is not formed due to the surrounding air flow,
Since the dust collection does not work well, the effect of the air flow is cut off by the two side walls.
【0015】表1は従来の固定式フードを使用して粉塵
を集塵する場合と、本発明の移動式溶銑鍋集塵装置で集
塵する場合との集塵に要する風量、設備費(固定式フー
ドを使用する場合は集塵機が必要)および使用電力を比
較したものであるが、本発明の移動式溶銑鍋集塵装置で
集塵する方が、非常に経済的であることが分かる。Table 1 shows the amount of air required for dust collection when dust is collected using a conventional fixed hood and when it is collected by the movable hot metal ladle dust collector of the present invention, and the equipment cost (fixed) Although a dust collector is required when using a movable hood) and the power consumption are compared, it can be seen that it is more economical to collect dust with the movable hot metal ladle dust collector of the present invention.
【0016】[0016]
【表1】 [Table 1]
【0017】[0017]
【発明の効果】この発明により、溶銑鍋のノロ掻き作業
中に発生して空中に舞い上がる粉塵を安価に集塵でき
る。Industrial Applicability According to the present invention, it is possible to inexpensively collect the dust generated during the lapping work of the hot metal ladle and flying in the air.
【図1】本発明の1実施例の移動式溶銑鍋集塵装置の装
置構成を示す説明図である。FIG. 1 is an explanatory diagram showing a device configuration of a movable hot metal ladle dust collecting device according to an embodiment of the present invention.
【符号の説明】 1 走行台車の開口部 2 走行台車 3 側壁 4 エアー吹き出しパイプ 5 排気孔 6 フード 7 車輪 8 レール[Explanation of Codes] 1 Opening of traveling vehicle 2 Traveling vehicle 3 Side wall 4 Air blowing pipe 5 Exhaust hole 6 Hood 7 Wheel 8 Rail
───────────────────────────────────────────────────── フロントページの続き (72)発明者 土居 郷志 東京都千代田区丸の内1丁目1番2号 日 本鋼管株式会社内 審査官 前田 仁志 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Goshi Doi 1-2-1 Marunouchi, Chiyoda-ku, Tokyo Hitoshi Maeda Examiner, Nihon Kokan Co., Ltd.
Claims (1)
上に走行台車の走行方向と平行に2枚の側壁を対向さ
せ、この対向させた2枚の側壁間にエアー吹出孔を穿設
したエアー吹出パイプを複数本配設して人工竜巻を発生
させるように構成するとともに、前記2枚の側壁の上端
間に排気孔を有するフードを設け、人工竜巻により前記
開口部から吸引された溶銑鍋の粉塵を前記排気孔を通し
て集塵機に送るようにしたことを特徴とする移動式溶銑
鍋集塵装置。1. A traveling vehicle having an opening opening downward, two side walls are opposed to each other in parallel to the traveling direction of the traveling vehicle, and an air blowout hole is formed between the two opposed side walls. A plurality of air blowing pipes are arranged to generate an artificial tornado, a hood having an exhaust hole is provided between the upper ends of the two side walls, and a hot metal ladle sucked from the opening by the artificial tornado. The dust of the above-mentioned type is sent to the dust collector through the exhaust hole.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16314591A JPH0826385B2 (en) | 1991-07-03 | 1991-07-03 | Movable hot metal ladle dust collector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16314591A JPH0826385B2 (en) | 1991-07-03 | 1991-07-03 | Movable hot metal ladle dust collector |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH059536A JPH059536A (en) | 1993-01-19 |
JPH0826385B2 true JPH0826385B2 (en) | 1996-03-13 |
Family
ID=15768076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16314591A Expired - Fee Related JPH0826385B2 (en) | 1991-07-03 | 1991-07-03 | Movable hot metal ladle dust collector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0826385B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011056435A (en) * | 2009-09-11 | 2011-03-24 | Nishi Nippon Metal:Kk | Movable-type dust collecting hood apparatus |
US9115216B2 (en) | 2011-02-21 | 2015-08-25 | Shin-Etsu Chemical Co., Ltd. | Method for producing alkali cellulose comprising removal of cellulose particles |
US9371398B2 (en) | 2011-02-21 | 2016-06-21 | Shin-Etsu Chemical Co., Ltd. | Methods for preparing alkali cellulose and cellulose ether |
US9371399B2 (en) | 2011-02-21 | 2016-06-21 | Shin-Etsu Chemical Co., Ltd. | Methods for producing alkali cellulose and cellulose ether |
US9481738B2 (en) | 2011-02-21 | 2016-11-01 | Shin-Etsu Chemical Co., Ltd. | Method for producing cellulose ether |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100615781B1 (en) | 2004-12-31 | 2006-08-25 | 주식회사 효성 | Polyester Fiber Having Excellent Light-Shielding and Flame Retardant Characteristic and Textile Goods Using the Same |
-
1991
- 1991-07-03 JP JP16314591A patent/JPH0826385B2/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011056435A (en) * | 2009-09-11 | 2011-03-24 | Nishi Nippon Metal:Kk | Movable-type dust collecting hood apparatus |
US9115216B2 (en) | 2011-02-21 | 2015-08-25 | Shin-Etsu Chemical Co., Ltd. | Method for producing alkali cellulose comprising removal of cellulose particles |
US9371398B2 (en) | 2011-02-21 | 2016-06-21 | Shin-Etsu Chemical Co., Ltd. | Methods for preparing alkali cellulose and cellulose ether |
US9371399B2 (en) | 2011-02-21 | 2016-06-21 | Shin-Etsu Chemical Co., Ltd. | Methods for producing alkali cellulose and cellulose ether |
US9481738B2 (en) | 2011-02-21 | 2016-11-01 | Shin-Etsu Chemical Co., Ltd. | Method for producing cellulose ether |
Also Published As
Publication number | Publication date |
---|---|
JPH059536A (en) | 1993-01-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |