JPH07247482A - Method for removing carbon stuck to raised part of coke oven rising pipe - Google Patents
Method for removing carbon stuck to raised part of coke oven rising pipeInfo
- Publication number
- JPH07247482A JPH07247482A JP4094294A JP4094294A JPH07247482A JP H07247482 A JPH07247482 A JP H07247482A JP 4094294 A JP4094294 A JP 4094294A JP 4094294 A JP4094294 A JP 4094294A JP H07247482 A JPH07247482 A JP H07247482A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- air
- coke oven
- rising pipe
- carbon
- 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
Landscapes
- Coke Industry (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はコークス炉の上昇管立管
部付着カーボンの除去方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for removing carbon adhering to a rising tube of a coke oven.
【０００２】[0002]
【従来の技術】コークス炉の上昇管立管部に付着するカ
ーボンは、放置すると上昇管を閉塞させ、乾留中に発生
するコークス炉ガスの炭化室からドライメーンへの排出
を阻害し、コークス炉の操業を不可能とする。2. Description of the Related Art Carbon adhering to the riser of a coke oven blocks the riser if left unattended, hindering the discharge of the coke oven gas generated during carbonization from the carbonization chamber to the dry mains. Operation is impossible.
【０００３】コークス炉の上昇管立管部に付着するカー
ボン対策については多くの公知の技術があるが、これら
を大別すると、１）付着を防止する方法、２）効率的に
除去する方法に区分される。前者としては、内張りに釉
薬等のコーティングやセラミックの溶射を行う方法（実
開昭６０−０８２４４２号公報等）が代表的な事例であ
る。後者はこれを、イ）機械的に除去する方法、ロ）空
気等の酸素源或いは二酸化炭素源を用いて除去する方
法、ハ）これらの組み合わせその他による方法、に分類
する事ができる。There are many known techniques for preventing carbon from adhering to the riser of the coke oven, but broadly speaking, these can be broadly classified into 1) a method for preventing adhesion and 2) a method for efficiently removing carbon. Be divided. A typical example of the former method is a method of coating glaze or the like on the lining or spraying ceramics (Japanese Utility Model Publication No. 60-082442, etc.). The latter can be classified into a) mechanical removal, b) removal using an oxygen source such as air or a carbon dioxide source, and c) a combination of these and other methods.
【０００４】例えば、特開平２−０４７１８７号公報に
みられる方法は、イ）の代表的な方法である。For example, the method disclosed in Japanese Patent Laid-Open No. 2-0418787 is a typical method of a).
【０００５】又、特開昭５０−００６６０１号公報に見
られる方法や、特開昭６１−１９７６８５号公報に見ら
れる方法はロ）の代表的な事例である。The method shown in Japanese Patent Laid-Open No. 50-006601 and the method shown in Japanese Patent Laid-Open No. 61-197685 are typical examples of (2).
【０００６】特開昭５５−０２９５０８号公報にみられ
る方法はハ）の代表的な事例である。The method disclosed in Japanese Patent Laid-Open No. 55-029508 is a typical example of (c).
【０００７】[0007]
【発明が解決しようとする課題】釉薬等によるカーボン
付着防止技術は、初期投資額が高いにも関わらず一切の
カーボン除去作業を不要とするレベルには到達していな
い事から結局二重投資をせざるを得ない等経済性の面か
らも積極的に採用されていないのが現状である。機械的
な方法は、上昇管立管内上部の軟カーボンに対しては十
分な効力を発揮するものの、最も難しい、上昇管立管下
部の高温雰囲気下での硬カーボンの除去に対しては材質
問題を含めて除去効率の面で問題が残っている。気体を
利用しての除去技術の内、ＣＯ2 源による方法はＯ2 源
による方法に対して除去速度が劣るという問題点がある
他ＣＯ2 源を含有するガスの大量処理方法等に難点があ
って実用化されるには至っていないのが実態である。[Problems to be Solved by the Invention] Despite the high initial investment amount, the technology for preventing carbon adhesion by glaze has not reached the level at which no carbon removal work is required. The current situation is that they are not being actively adopted due to their economic implications such as unavoidable circumstances. The mechanical method is effective enough for soft carbon in the upper part of the rising pipe, but the most difficult material problem for removing hard carbon in the high temperature atmosphere in the lower part of the rising pipe. There is still a problem in terms of removal efficiency including. Among the removal techniques using gas, the method using a CO 2 source has a problem that the removal rate is inferior to the method using an O 2 source, and there is a difficulty in a method for treating a large amount of gas containing a CO 2 source. The reality is that it has not been put to practical use.
【０００８】現段階で、最も難しい上昇管立管下部（基
部）に付着しているカーボン除去の効果的な方法は、圧
縮空気を付着しているカーボンに直接吹きつけて燃焼除
去する方法である。しかし、コークス炉に於いて生産作
業をしながらこの様な、圧縮空気を吹きつける事が可能
な作業時間帯は２〜３分と極めて限定されている為、一
般の空気圧縮機による圧縮空気の吹き付けでは、上昇管
立管内部の付着カーボンを完全に燃焼除去させることは
出来ない。At the present stage, the most effective method for removing the carbon adhering to the lower part (base) of the riser standpipe is to blow compressed air directly onto the adhering carbon for combustion removal. . However, the working time zone in which compressed air can be blown during production work in the coke oven is extremely limited to 2 to 3 minutes. By spraying, it is not possible to completely burn off the carbon adhering inside the riser pipe.
【０００９】本発明は、コークス炉の高稼働率操業や、
コークス炉への装入石炭が予熱や調湿といった事前処理
がされたケース等上昇管立管へのカーボン付着成長速度
が速い場合においても、コークス炉の生産作業速度に何
ら影響を与える事なく、又人力による補完的な除去作用
を全く必要としない高効率の上昇管立管部付着カーボン
除去方法を提供するものである。The present invention is directed to a high operating rate operation of a coke oven,
Even if the rate of carbon deposition growth on the rising pipe vertical pipe is high, such as when the coal charged into the coke oven has been pretreated such as preheating and humidity control, it does not affect the production work speed of the coke oven at all. Another object of the present invention is to provide a highly efficient method of removing carbon adhering to the riser pipe portion which does not require a complementary removing action by human power.
【００１０】[0010]
【課題を解決するための手段】本発明は、上記の課題を
解決する為に、コークス炉の上昇管立管内下部に配置し
た空気吹き出し装置から圧縮空気を吹き出して、上昇管
立管内下部の負圧の発生を促進し前記上昇管立管内にコ
ークス炉外から高速導入した空気により、上昇管内部の
付着カーボンを燃焼させることを特徴とする。In order to solve the above-mentioned problems, the present invention blows compressed air from an air blowing device arranged in the lower part of the rising pipe vertical pipe of the coke oven to discharge the negative air in the lower part of the rising pipe vertical pipe. It is characterized in that the adhering carbon inside the riser pipe is burned by the air that accelerates the generation of pressure and is introduced into the riser pipe at a high speed from outside the coke oven.
【００１１】さらに、コークス押し出し時において、コ
ークス炉の炉蓋及び、上昇管上蓋が開放されている際
に、空気吹き出し装置をコークス炉の外部からコークス
炉内の上昇管立管内下部に配置することを特徴とする。Further, when the coke is being pushed out and the furnace lid of the coke oven and the upper lid of the ascending pipe are opened, an air blowing device is arranged from the outside of the coke oven to the lower part inside the ascending pipe inside the coke oven. Is characterized by.
【００１２】[0012]
【作用】コークス炉の上昇管立管基部の温度は８００〜
１０００℃程度である為、外部から空気を導入すれば上
昇管立管の内部に付着したカーボンを燃焼除去すること
が出来る。しかし、外部から空気を導入する間、その炭
化室は生産を停止することになるので、カーボンを燃焼
除去する為に多大な時間を使う事は許されない。そこ
で、従来は、コークス押し出し中の２〜３分の時間内
で、押出機上に設置した空気圧縮機から上昇管基部に空
気を吹き付けて付着カーボンの燃焼除去を行っていた。
しかし、押出機上に設置できる空気圧縮機の容量は限ら
れており、空気の吐出量はせいぜい１０Ｎｍ3 ／ｍｉｎ
程度の為、付着カーボンを完全に燃焼除去できなかっ
た。[Operation] The temperature of the riser base of the coke oven is 800-
Since the temperature is about 1000 ° C., the carbon adhering to the inside of the riser standpipe can be burned and removed by introducing air from the outside. However, during the introduction of air from the outside, the carbonization chamber will stop production, so it is not allowed to spend a great deal of time for burning and removing carbon. Therefore, conventionally, within a time period of 2 to 3 minutes during the extrusion of coke, air is blown from the air compressor installed on the extruder to the base of the rising pipe to burn and remove the adhered carbon.
However, the capacity of the air compressor that can be installed on the extruder is limited, and the discharge rate of air is at most 10 Nm 3 / min.
Due to the extent, the adhered carbon could not be completely burned and removed.
【００１３】本発明は、エジェクター効果を利用した空
気吹き出し装置に着目したものである。The present invention focuses on an air blowing device utilizing the ejector effect.
【００１４】エジェクターは、少量の気体を噴出させる
ことによって、大量の気体を吸引する装置として各種工
業設備に用いられている。上昇管立管内下部に空気吹き
出し装置を配置して、該装置から圧縮空気を噴出させる
と、エジェクター効果による負圧が上昇管立管内下部に
発生し、これにより大量の外空気が上昇管立管に吸引さ
れる。The ejector is used in various industrial facilities as a device for sucking a large amount of gas by ejecting a small amount of gas. When an air blowing device is installed in the lower part of the riser standpipe and compressed air is ejected from the device, a negative pressure due to the ejector effect is generated in the lower part of the riser standpipe, which causes a large amount of outside air to rise. Is sucked into.
【００１５】[0015]
【実施例】以下本発明方法を、実施態様例を示す図に基
づいて実施例と共に詳細に説明する。EXAMPLES The method of the present invention will be described in detail below with reference to examples based on the drawings showing examples of embodiments.
【００１６】図１は本発明の、エジェクター効果を利用
した空気吹き出し装置の上昇管立管下部への配置図、図
２は上昇管立管内部に配置された空気吹き出し装置の平
面図、図３は空気吹き出し装置の側面図である。FIG. 1 is a layout view of an air blowing device utilizing the ejector effect in the lower portion of the rising pipe stand pipe of the present invention, FIG. 2 is a plan view of an air blowing device arranged inside the rising pipe stand pipe, and FIG. FIG. 3 is a side view of the air blowing device.
【００１７】空気吹き出し装置８は、図２，３に示す空
気吹き出し装置のヘッダー管１６と空気吹き出し装置の
リング管１４及び空気吹き出し装置のノズル１５から構
成されており、電磁弁１３を介して空気圧縮機１１に接
続され、押出機１０の上に設置する。更に、上下駆動装
置２４及び空気吹き出し装置水平移動装置９を設置する
事により、空気吹き出し装置８を上下左右に駆動させる
事が出来る。The air blowing device 8 is composed of a header pipe 16 of the air blowing device, a ring pipe 14 of the air blowing device and a nozzle 15 of the air blowing device shown in FIGS. It is connected to the compressor 11 and installed on the extruder 10. Further, by installing the vertical driving device 24 and the air blowing device horizontal moving device 9, the air blowing device 8 can be driven vertically and horizontally.
【００１８】空気吹き出し装置８による外空気の導入流
量は、圧縮空気の吐出圧及び吐出流量によって調整出来
るが、その他、空気吹き出し装置の位置によっても変わ
り、上昇管立管下部より０〜３００ｍｍ管内に配置した
場合がより効率的（圧縮空気の吐出圧及び吐出流量が同
一の場合に外空気の導入流量を最大にできる）である。The flow rate of the outside air introduced by the air blowing device 8 can be adjusted by the discharge pressure and the discharge flow amount of the compressed air, but it also varies depending on the position of the air blowing device, and is within 0 to 300 mm from the lower part of the riser standpipe. The arrangement is more efficient (the introduction flow rate of the outside air can be maximized when the discharge pressure and the discharge flow rate of the compressed air are the same).
【００１９】従来から、圧縮空気を吹き付けて上昇管立
管部付着カーボンを燃焼除去する為に用いられている空
気圧縮は、たかだか吐出圧及び吐出流量は、１０ｋｇ／
ｃｍ 2 及び１０Ｎｍ3 ／ｍｉｎ程度であるが、この程度
の空気圧縮機を本発明の方法に用いる事によって、１５
０〜２００Ｎｍ3 ／ｍｉｎの外空気を高速導入する事が
可能となる。Conventionally, a rising pipe is sprayed with compressed air.
The empty space used to burn and remove carbon adhering to the pipe
For air compression, the discharge pressure and discharge flow rate are at most 10 kg /
cm 2 And 10 Nm3 / Min, but this level
By using the air compressor of
0-200 Nm3 / Min of outside air can be introduced at high speed
It will be possible.
【００２０】又、外部から高速導入する空気を出来るだ
け上昇管立管内部の付着カーボンに接触させるべく、リ
ング管１４の内側を密閉するのが、付着カーボンの燃焼
除去速度の向上に有効である。Further, it is effective to improve the combustion removal rate of the adhering carbon by sealing the inside of the ring pipe 14 so that the air introduced from the outside at a high speed is brought into contact with the adhering carbon inside the rising pipe as much as possible. .
【００２１】図１において、１はコークス炉炭化室壁、
２は上昇管立管部、３は上昇管曲管部、４は上昇管上
蓋、５は上昇管ダンパーであり、押出機ラム６にてコー
クス７が押し出されている状態に於いて本装置が作動し
ている状況を示している。８は上昇管立管下部から配置
されている空気吹き出し装置（エジェクター効果発生装
置）、９は押出機１０上に設けられている空気吹き出し
装置（エジェクター効果発生装置）の水平移動装置、１
１は空気吹き出し装置（エジェクター効果発生装置）に
連結されている空気圧縮機を示す。１２は上昇管立管部
ライニングレンガを示す。In FIG. 1, reference numeral 1 denotes a coke oven carbonization chamber wall,
2 is an ascending pipe vertical pipe part, 3 is an ascending pipe curved pipe part, 4 is an ascending pipe upper lid, 5 is an ascending pipe damper, and when the coke 7 is being pushed out by the extruder ram 6, this device is It shows a working situation. Reference numeral 8 is an air blowing device (ejector effect generating device) arranged from the lower part of the rising pipe, 9 is a horizontal moving device of the air blowing device (ejector effect generating device) provided on the extruder 10.
Reference numeral 1 denotes an air compressor connected to an air blowing device (ejector effect generating device). Reference numeral 12 denotes a rising pipe vertical pipe lining brick.
【００２２】空気吹き出し装置（エジェクター効果発生
装置）８は、押出機ラム６が炉内に前進を始めた直後に
空気吹き出し装置（エジェクター効果発生装置）水平移
動装置９によって炉内に水平に前進し上昇管立管下部で
停止。次いで、空気吹き出し装置（エジェクター効果発
生装置）水平移動装置９及び空気圧縮機１１を搭載して
いる台車２３の上下駆動装置２４によって、上昇管立管
部内を３００ｍｍ程度上昇した後に停止させ同時に、空
気圧縮機１１の出口に設けられている電磁弁１３を開放
し圧縮空気の放出を行い、外空気の高速導入を開始させ
る。上昇管立管基部の温度は８００〜１０００℃程度は
あるので、高速導入された外空気は直ちに付着カーボン
と反応し高速燃焼をすることができる。The air blowing device (ejector effect generating device) 8 is moved horizontally into the furnace by the air blowing device (ejector effect generating device) horizontal moving device 9 immediately after the extruder ram 6 starts moving forward into the furnace. Stops at the bottom of the rising pipe. Then, by the vertical driving device 24 of the carriage 23 equipped with the air blowing device (ejector effect generating device) horizontal moving device 9 and the air compressor 11, the inside of the ascending pipe is raised about 300 mm and then stopped. The electromagnetic valve 13 provided at the outlet of the compressor 11 is opened to release compressed air and start high-speed introduction of outside air. Since the temperature of the riser stand tube base is about 800 to 1000 ° C., the outside air introduced at a high speed immediately reacts with the adhering carbon and can burn at a high speed.
【００２３】空気吹き出し装置（エジェクター効果発生
装置）８の炉外への引出しは、押出機ラム６がコークス
７を押し出した後、上昇管立管下部（基部）の位置に戻
って来る直前に、上下駆動装置２４及び空気吹き出し装
置（エジェクター効果発生装置）水平移動装置９により
行い、同時に電磁弁１３を閉止する事で圧縮空気の放出
を停止し外空気の高速導入を終了する。The air blow-out device (ejector effect generator) 8 is drawn out of the furnace by the extruder ram 6 after pushing out the coke 7 and immediately before returning to the position of the lower part (base part) of the rising pipe. The vertical drive device 24 and the air blowing device (ejector effect generator) horizontal moving device 9 are used to simultaneously close the electromagnetic valve 13 to stop the discharge of compressed air and terminate the high-speed introduction of outside air.
【００２４】実施例１ 図１は本発明者等が炉高６ｍのコークス炉において実施
した、上昇管立管内下部に空気吹き出し装置（エジェク
ター効果発生装置）を配置して、そのエジェクター効果
を利用して上昇管立管内下部（基部）に外空気を高速導
入して上昇管立管部付着カーボンを高速燃焼させた装置
の配置側面図である。図２は上昇管立管内部に配置され
た空気吹き出し装置（エジェクター効果発生装置）を示
す平面図、図３は空気吹き出し装置（エジェクター効果
発生装置）の側面図を示す。Example 1 FIG. 1 shows that the present inventors carried out a coke oven having a furnace height of 6 m and arranged an air blowing device (ejector effect generating device) in the lower part of the riser standpipe to utilize the ejector effect. FIG. 3 is a side view of the arrangement of an apparatus in which external air is introduced at a high speed into the lower portion (base portion) of the rising pipe standpipe to burn the rising pipe standpipe part carbon at high speed. FIG. 2 is a plan view showing an air blowing device (ejector effect generating device) arranged inside the riser pipe, and FIG. 3 is a side view of the air blowing device (ejector effect generating device).
【００２５】図１において、１はコークス炉炭化室壁、
２は上昇管立管部、３は上昇管曲管部、４は上昇管上
蓋、５は上昇管ダンパーであり、押出機ラム６にてコー
クス７が押し出されている状態に於いて本装置が作動し
ている状況を示している。８は上昇管立管下部から挿入
されている空気吹き出し装置（エジェクター効果発生装
置）、９は押出機１０上に設けられている空気吹き出し
装置（エジェクター効果発生装置）の水平移動装置、１
１は空気吹き出し装置（エジェクター効果発生装置）に
連結されている空気圧縮機を示す。１２は上昇管立管部
ライニングレンガを示す。In FIG. 1, 1 is a wall of a coke oven carbonization chamber,
2 is an ascending pipe vertical pipe part, 3 is an ascending pipe curved pipe part, 4 is an ascending pipe upper lid, 5 is an ascending pipe damper, and when the coke 7 is being pushed out by the extruder ram 6, this device is It shows a working situation. Reference numeral 8 denotes an air blowing device (ejector effect generating device) inserted from the lower part of the rising pipe, 9 denotes a horizontal moving device for the air blowing device (ejector effect generating device) provided on the extruder 10.
Reference numeral 1 denotes an air compressor connected to an air blowing device (ejector effect generating device). Reference numeral 12 denotes a rising pipe vertical pipe lining brick.
【００２６】空気吹き出し装置（エジェクター効果発生
装置）８は、押出機ラム６が炉内に前進を始めた直後に
空気吹き出し装置（エジェクター効果発生装置）水平移
動装置９によって炉内に水平に前進し上昇管立管下部で
停止。次いで、空気吹き出し装置（エジェクター効果発
生装置）水平移動装置９及び空気圧縮機１１を搭載して
いる台車２３の上下駆動装置２４によって、上昇管立管
部内を３００ｍｍ程度上昇した後停止させ、同時に、空
気圧縮機１１の出口に設けられている電磁弁１３を開放
し圧縮空気の放出を行い、外空気の高速導入を開始させ
た。上昇管立管基部の温度は８００〜１０００℃程度は
あるので、高速導入された外空気は直ちに付着カーボン
と反応し高速燃焼を開始した。Immediately after the extruder ram 6 starts moving forward into the furnace, the air blowing device (ejector effect generating device) 8 moves horizontally into the furnace by the air moving device (ejector effect generating device) horizontal moving device 9. Stops at the bottom of the rising pipe. Next, by the vertical drive device 24 of the carriage 23 equipped with the air blowing device (ejector effect generator) horizontal moving device 9 and the air compressor 11, the inside of the rising pipe is raised about 300 mm and then stopped, and at the same time, The electromagnetic valve 13 provided at the outlet of the air compressor 11 was opened to release compressed air, and high-speed introduction of outside air was started. Since the temperature of the riser standpipe base is about 800 to 1000 ° C., the outside air introduced at a high speed immediately reacted with the adhered carbon and started the high speed combustion.
【００２７】そして、押出機ラム６がコークス７を押し
出した後、上昇管立管下部（基部）の位置に戻って来る
直前に上下駆動装置２４及び空気吹き出し装置（エジェ
クター効果発生装置）水平移動装置９により、空気吹き
出し装置（エジェクター効果発生装置）８を炉外へ引出
し、同時に電磁弁１３を閉止する事で圧縮空気の放出を
停止し外空気の高速導入を終了させた。電磁弁１３が開
放されて外空気が高速導入されている時間は、８０秒／
回であり、これは押出機ラムがコークスを押し出して戻
って来るまでの所要時間以下であってコークス押し出し
作業速度に何らの影響も与えない。Then, after the extruder ram 6 pushes out the coke 7, immediately before returning to the position of the lower portion (base portion) of the rising pipe, the vertical drive device 24 and the air blowing device (ejector effect generating device) horizontal moving device. The air blowing device (ejector effect generating device) 8 was pulled out of the furnace by 9 and the electromagnetic valve 13 was closed at the same time to stop the discharge of the compressed air and terminate the high-speed introduction of the outside air. The time during which the solenoid valve 13 is opened and the outside air is introduced at high speed is 80 seconds /
This is less than the time required for the extruder ram to extrude the coke and return, and has no effect on the coke extrusion work speed.
【００２８】又、本実施例においては、空気圧縮機は、
吐出圧７ｋｇ／ｃｍ2 、吐出量６Ｎｍ3 ／ｍｉｎの一般
的な能力のものを用いた。この様な一般的な空気圧縮機
を駆動源として用いる事によって、本装置では１４０Ｎ
ｍ3 ／ｍｉｎの外気を高速導入する事が出来た。この導
入空気量は後述するように上昇管立管内部に付着するカ
ーボンを、押出機ラムがコークスを押し出して戻って来
るまでの間に燃焼除去させるに必要且つ十分な量であ
る。Further, in this embodiment, the air compressor is
The discharge pressure was 7 kg / cm 2 , and the discharge rate was 6 Nm 3 / min, which had a general capability. By using such a general air compressor as a drive source
The outside air of m 3 / min could be introduced at high speed. The amount of introduced air is an amount necessary and sufficient to burn and remove the carbon adhering to the inside of the rising pipe as described later before the extruder ram pushes out the coke and returns.
【００２９】図２，３において、１４は空気吹き出し装
置（エジェクター効果発生装置）のリング管、１５は空
気吹き出し装置（エジェクター効果発生装置）のノズ
ル、１６はヘッダー管を示す。2 and 3, reference numeral 14 is a ring pipe of an air blowing device (ejector effect generating device), 15 is a nozzle of the air blowing device (ejector effect generating device), and 16 is a header pipe.
【００３０】空気吹き出し装置（エジェクター効果発生
装置）８は、ノズル１５を通して上昇管立管部上方に圧
縮空気を吐出して負圧を効率的に発生させるものであっ
て、従来の空気吹きつけノズルの様に、上昇管部に付着
するカーボンへ直接圧縮空気を吹きつけるものではな
い。従来の様に、直接、上昇管部に付着するカーボンへ
圧縮空気を吹きつけたのでは、カーボンの燃焼に寄与す
るのは空気圧縮機の吐出空気量（本実施例の場合では６
Ｎｍ3 ／ｍｉｎ）のみでしかない為、カーボン燃焼除去
速度は低いものとなってしまうのである。The air blowing device (ejector effect generating device) 8 discharges compressed air through the nozzle 15 to above the rising pipe standing pipe portion to efficiently generate a negative pressure, and is a conventional air blowing nozzle. Unlike the above, compressed air is not directly blown to the carbon adhering to the rising pipe. If compressed air is blown directly to the carbon adhering to the rising pipe portion as in the conventional case, it is the discharge air amount of the air compressor (6 in this embodiment that contributes to the combustion of carbon).
Since it is only Nm 3 / min), the carbon burning removal rate becomes low.
【００３１】又、リング管１４の内側は密閉されてお
り、高速導入される外空気はリング管１４の外周を通過
する事になり、付着カーボンと効率的に接触しながら上
昇管内を上昇する。Further, the inside of the ring pipe 14 is hermetically sealed, and the external air introduced at a high speed passes through the outer periphery of the ring pipe 14 and rises in the rising pipe while efficiently contacting the adhered carbon.
【００３２】本発明による方法で、炉高６メートルのコ
ークス炉において長期に、上昇管立管内部付着カーボン
の除去試験を行った結果、毎コークス押し出し時に本発
明の方法によるカーボン除去を行う必要は無く、３回の
押し出し時に１回の割合で本発明の方法によるカーボン
除去を行う事で上昇管立管部付着カーボンの成長を迎え
得る事を目視及び写真撮影で確認した。即ち、３回の押
し出し時に１回の割合での本発明の方法によるカーボン
の燃焼除去速度と上昇管立管部に付着するカーボンの成
長速度がほぼバランスする事が判明した。As a result of carrying out a long-term test for removing carbon adhering to the inside of the riser stand by a method according to the present invention in a coke oven having a furnace height of 6 meters, it is not necessary to remove carbon by the method according to the present invention at every coke extrusion. Nonetheless, it was confirmed visually and by photography that the growth of the carbon adhering to the riser tube could be reached by removing the carbon by the method of the present invention once every three extrusions. That is, it was found that the rate of carbon removal by combustion according to the method of the present invention and the rate of growth of carbon adhering to the riser pipe at the rate of once during extrusion three times were almost balanced.
【００３３】尚、この長期試験の中で一部の炭化室の上
昇管を対象にして、空気吹き出し装置を上昇管立管内に
配置しないで（空気吹き出し装置の上下駆動装置２４の
作動を停止させたまま）圧縮空気の放出を行って、上昇
管立管部付着カーボンの燃焼除去を行ったが、この場合
でも２回の押し出し時に１回の割合で本発明の方法によ
るカーボン除去を行えば、上昇管立管部付着カーボンの
成長を迎える事ができる事を目視及び写真撮影で確認し
た。In this long-term test, some of the ascending pipes in the carbonization chamber were targeted, and the air blowing device was not arranged in the ascending pipe standpipe (the operation of the vertical driving device 24 of the air blowing device was stopped). (As it is), compressed air was discharged to burn and remove the carbon adhering to the riser pipe, but in this case as well, if the carbon is removed by the method of the present invention once in two extrusions, It was confirmed visually and by photography that the growth of the carbon adhering to the riser tube could be reached.
【００３４】次いで、炉高６メートルのコークス炉の、
上昇管立管部内に十分カーボンが付着している上昇管に
於いて図４に示す方法で本発明の方法による上昇管立管
部付着カーボン除去を行い本発明の方法によるカーボン
燃焼除去速度を測定した。Next, in a coke oven with a furnace height of 6 meters,
In the riser pipe in which the carbon in the riser pipe is sufficiently adhered, the carbon adhering to the riser pipe is removed by the method of the present invention by the method shown in FIG. 4 to measure the carbon burning removal rate by the method of the present invention. did.
【００３５】図４に於いて、１８及び１９は上昇管立管
上部及び下部に設けられたサンプリング孔、２０は上昇
管立管内通過ガス流量測定用機器とそのプローブ、２１
は上昇管立管内通過ガス温度測定用機器とそのプロー
ブ、２２は上昇管立管内通過ガス組成中のＯ2 測定機器
とそのプローブを示す。２０のプローブとしてはピトー
チューブを、２１のプローブとして熱電対を、２２のプ
ローブは石英チューブを用いた。２２は１８及び１９の
両サンプリング孔にセットし、２０，２１はサンプリン
グ孔１８にセットした。又、空気圧縮機出口にて吐出空
気流量、温度、圧力の計測を行った（図４には図示され
ていない）。In FIG. 4, 18 and 19 are sampling holes provided in the upper and lower portions of the rising pipe stand pipe, 20 is a device for measuring the passing gas flow rate in the rising pipe stand pipe and its probe, 21.
Is a device for measuring the temperature of passing gas in the rising pipe and its probe, and 22 is a device for measuring O 2 in the composition of passing gas in the rising pipe and its probe. A pitot tube was used as the probe of 20, a thermocouple was used as the probe of 21, and a quartz tube was used as the probe of 22. 22 was set in both sampling holes 18 and 19, and 20 and 21 were set in sampling hole 18. Further, the discharge air flow rate, temperature and pressure were measured at the outlet of the air compressor (not shown in FIG. 4).
【００３６】本測定装置を稼働状態にした上で、空気吹
き出し装置を上昇管立管部内下部を３００ｍｍ上昇した
位置に配置した後、空気圧縮機出口の電磁弁を開放して
外空気の高速導入を開始し付着カーボンがほぼ除去され
た時点で測定を終了した。After the measuring device was put into operation, the air blowing device was placed at a position where the inner lower part of the rising pipe section was raised by 300 mm, and then the electromagnetic valve at the outlet of the air compressor was opened to introduce the outside air at high speed. The measurement was stopped when the adhered carbon was almost removed.
【００３７】測定結果は表１に示す通りであり、本発明
の方法による上昇管立管部付着カーボンの燃焼除去速度
は７．１ｋｇ／ｍｉｎ、上昇管内カーボン燃焼除去量／
回（８０秒）は９．５ｋｇ、又本炉に於ける、上昇管立
管部付着カーボンの成長速度は３．２ｋｇ／サイクルで
あった。（上昇管立管部付着カーボン燃焼除去量／回×
１／３）The measurement results are as shown in Table 1. The combustion removal rate of the carbon adhering to the rising pipe vertical pipe portion by the method of the present invention is 7.1 kg / min, and the carbon removal removal amount in the rising pipe /
The number of times (80 seconds) was 9.5 kg, and the growth rate of the carbon adhering to the rising tube was 3.2 kg / cycle in this furnace. (Removal amount of carbon burned on the riser pipe / time ×
1/3)
【００３８】[0038]
【表１】 [Table 1]
【００３９】註１）上昇管内通過ガス組成中に［ＣＯ］
は存在しない事は確認済みである。Note 1) [CO] in the composition of the gas passing through the rising pipe.
It has been confirmed that does not exist.
【００４０】２）上昇管立管内でのＯ2 消費量＝（上昇
管立管下部に於ける［Ｏ2 ］％）−（上昇管立管上部に
於ける［Ｏ2 ］％） ３）上昇管立管部付着カーボン燃焼除去速度＝（１４０
×０．０９５）×１２／２２．４＝７．１ ４）上昇管立管部付着カーボン燃焼除去量／回＝７．１
×８０／６０＝９．５本発明の方法によって、この様な
高速の上昇管立管部付着カーボンの燃焼除去速度が得ら
れたのは、従来の方法が吐出させる圧縮空気を直接付着
カーボンに吹きつける事によってカーボンを燃焼除去さ
せるものであるのに対して、本発明の方法は吐出させる
圧縮空気によるエジェクター効果により大量の外空気を
高速で導入し、この導入した大量高速の外空気によって
カーボンを燃焼除去させる方法であるからである。2) O 2 consumption in the riser standpipe = ([O 2 ]% in the lower part of the riser standpipe)-([O 2 ]% in the upper part of the riser standpipe) 3) Rise Combustion removal rate of carbon adhering to tube stand = (140
× 0.095) × 12 / 22.4 = 7.1 4) Amount of combustion removal of carbon adhering to the riser stand tube / cycle = 7.1
× 80/60 = 9.5 By the method of the present invention, such a high rate of burning and removing the carbon adhering to the rising pipe and the vertical pipe can be obtained because the compressed air discharged by the conventional method is directly applied to the carbon. While the carbon is burned and removed by spraying, the method of the present invention introduces a large amount of outside air at high speed due to the ejector effect of the compressed air to be discharged, and the introduced large amount of outside air is used for carbon This is because it is a method of burning and removing.
【００４１】上昇管立管部に付着するカーボンの成長速
度は、装入物の事前処理方式（装入物性状）の他、炉構
造や生産速度に左右される炉頂空間部温度によって支配
されている為一般解はないが、６ｋｇ／サイクルを越え
るコークス炉はないとみられるので、本発明による方法
はどのようなコークス炉においても人力除去を全く不要
とし、又コークス生産作業に何ら影響を与える事の無い
抜本的なコークス炉上昇管立管部付着カーボン除去方法
である事が十分裏付けられた。尚、上昇管立管部付着カ
ーボンの燃焼除去速度は、コークス炉外から導入される
外空気流量に比例する事を確かめている。又、空気吹き
出し装置により導入される外空気流量は、圧縮空気の吐
出量及び吐出圧によって変化させる事が出来るので、上
昇管立管部付着カーボンの燃焼除去速度がカーボンの成
長速度を上回る場合は圧縮空気の吐出量が吐出圧を減ず
る事によっても良いし、吐出時間を短縮させて対応して
も良い。The growth rate of carbon adhering to the rising pipe vertical section is controlled by the temperature of the furnace top space which depends on the furnace structure and production rate as well as the pretreatment method of the charging (property of charging). Therefore, there is no general solution, but it seems that there is no coke oven that exceeds 6 kg / cycle. Therefore, the method according to the present invention does not require human power removal in any coke oven and has no effect on coke production work. It was fully proved that this is a radical method of removing carbon adhering to the rising part of the rising pipe of the coke oven without any problems. It has been confirmed that the combustion removal rate of the carbon adhering to the riser tube is proportional to the flow rate of outside air introduced from outside the coke oven. Further, the flow rate of outside air introduced by the air blowing device can be changed by the discharge amount and discharge pressure of the compressed air. Therefore, when the combustion removal rate of the carbon adhering to the rising pipe standpipe exceeds the growth rate of carbon, The amount of compressed air discharged may be reduced by reducing the discharge pressure, or the discharge time may be shortened.
【００４２】[0042]
【発明の効果】本発明により、従来から用いている空気
圧縮機の容量を変えずに、コークス炉上昇管立管部に付
着するカーボンを遠隔操作で、コークス押し出し中の短
時間に、確実に除去する事が出来、人力による突き落と
し等の補助作業が不要となった。EFFECTS OF THE INVENTION According to the present invention, the carbon adhering to the rising pipe of the coke oven can be remotely controlled without changing the capacity of the air compressor which has been conventionally used, and in a short time during the extrusion of the coke reliably. It can be removed and there is no need for auxiliary work such as pushing down manually.
【図１】本発明の１実施例を示す側面図。FIG. 1 is a side view showing an embodiment of the present invention.
【図２】上昇管立管内部に配置された状態の空気吹き出
し装置を示す平面図。FIG. 2 is a plan view showing the air blowing device arranged inside the rising pipe stand pipe.
【図３】空気吹き出し装置の側面図。FIG. 3 is a side view of the air blowing device.
【図４】本発明の方法による上昇管立管部付着カーボン
の燃焼除去速度の測定装置を示す側面図。FIG. 4 is a side view showing an apparatus for measuring the combustion removal rate of carbon adhering to the rising pipe stand pipe portion according to the method of the present invention.
１…コークス炉炭化室壁 ２…上昇管立管部 ３…上昇管曲管部 ４…上昇管上蓋 ５…上昇管ダンパー ６…押出機ラム ７…コークス ８…空気吹き出し
装置 ９…空気吹き出し装置水平移動装置 １０…押出機 １１…空気圧縮機 １２…上昇管立管
部ライニングレンガ １３…電磁弁 １４…空気吹き出
し装置のリング管 １５…空気吹き出し装置のノズル １６…空気吹き出
し装置のヘッダー管 １７…上昇管立管部付着カーボン １８…上昇管立管
上部サンプリング孔 １９…上昇管立管下部サンプリング孔 ２０…上昇管立管内通過ガス流量測定用機器とプローブ ２１…上昇管立管内通過ガス温度測定用機器とプローブ ２２…上昇管立管内通過ガス組成中のＯ2 測定器とプロ
ーブ ２３…台車 ２４…上下駆動装
置1 ... Coke oven carbonization chamber wall 2 ... Ascending pipe vertical pipe part 3 ... Ascending pipe curved pipe part 4 ... Ascending pipe upper lid 5 ... Ascending pipe damper 6 ... Extruder ram 7 ... Coke 8 ... Air blowing device 9 ... Air blowing device horizontal Moving device 10 ... Extruder 11 ... Air compressor 12 ... Rise pipe Standing pipe lining brick 13 ... Solenoid valve 14 ... Air blowing device ring pipe 15 ... Air blowing device nozzle 16 ... Air blowing device header pipe 17 ... Rise Carbon attached to the pipe stand 18: Sampling hole in the upper part of the rising pipe 19 ... Sampling hole in the lower part of the rising pipe 20 ... Instrument for measuring the flow rate of gas passing through the rising pipe 21 and probe 21 ... Measuring device for passing gas temperature in the rising pipe And probe 22 ... O 2 measuring device and probe 23 in passing gas composition in riser standpipe 23 ... Cart 24 ... Vertical drive device
Claims (2)
た空気吹き出し装置から圧縮空気を吹き出し、上昇管立
管内下部の負圧の発生を促進し、前記上昇管立管内にコ
ークス炉外から空気を高速導入した空気により前記上昇
管立管内部の付着カーボンを燃焼させることを特徴とす
るコークス炉上昇管立管部付着カーボン除去方法。1. A compressed air is blown from an air blowing device arranged in the lower part of the riser pipe of the coke oven to promote the generation of negative pressure in the lower part of the riser pipe, and the air is blown into the riser pipe from the outside of the coke oven. A method for removing carbon adhering to the riser pipe part of the coke oven, characterized in that the carbon adhering inside the riser pipe is burned by the air introduced at high speed.
炉の炉蓋および上昇管上蓋が開放されている際に、空気
吹き出し装置をコークス炉の外部からコークス炉内の上
昇管立管内下部に配置する事を特徴とする請求項１記載
のコークス炉上昇管立管部付着カーボン除去方法。2. When the coke is being pushed out, when the furnace lid of the coke oven and the upper lid of the ascending pipe are opened, an air blowing device is arranged from the outside of the coke oven to the lower part inside the ascending pipe inside the coke oven. The method for removing carbon adhering to the rising pipe portion of the coke oven rising pipe according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4094294A JPH07247482A (en) | 1994-03-11 | 1994-03-11 | Method for removing carbon stuck to raised part of coke oven rising pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4094294A JPH07247482A (en) | 1994-03-11 | 1994-03-11 | Method for removing carbon stuck to raised part of coke oven rising pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07247482A true JPH07247482A (en) | 1995-09-26 |
Family
ID=12594565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4094294A Pending JPH07247482A (en) | 1994-03-11 | 1994-03-11 | Method for removing carbon stuck to raised part of coke oven rising pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07247482A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100758452B1 (en) * | 2001-10-29 | 2007-09-14 | 주식회사 포스코 | An apparatus for opening ascending pipe of coke oven |
| KR101138185B1 (en) * | 2009-05-22 | 2012-05-10 | 주식회사 포스코 | Apparatus for removing carbon in standpipe of cokes oven |
| KR101398263B1 (en) * | 2012-06-25 | 2014-05-22 | 주식회사 포스코 | Apparatus for removing the carbon attatched on the inside of the ascension pipe in carbonization chamber |
| KR101530334B1 (en) * | 2013-08-09 | 2015-06-19 | 주식회사 포스코 | Coke oven riser carbon removal apparatus |
| JP2020132812A (en) * | 2019-02-25 | 2020-08-31 | 日本製鉄株式会社 | Burning removal method of deposited carbon on coke riser tube stem and burning removal device |
-
1994
- 1994-03-11 JP JP4094294A patent/JPH07247482A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100758452B1 (en) * | 2001-10-29 | 2007-09-14 | 주식회사 포스코 | An apparatus for opening ascending pipe of coke oven |
| KR101138185B1 (en) * | 2009-05-22 | 2012-05-10 | 주식회사 포스코 | Apparatus for removing carbon in standpipe of cokes oven |
| KR101398263B1 (en) * | 2012-06-25 | 2014-05-22 | 주식회사 포스코 | Apparatus for removing the carbon attatched on the inside of the ascension pipe in carbonization chamber |
| KR101530334B1 (en) * | 2013-08-09 | 2015-06-19 | 주식회사 포스코 | Coke oven riser carbon removal apparatus |
| JP2020132812A (en) * | 2019-02-25 | 2020-08-31 | 日本製鉄株式会社 | Burning removal method of deposited carbon on coke riser tube stem and burning removal device |
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Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20020730 |