JP2003261876A - Discharge method for discharging coal gas from rising pipe of coke oven and discharge apparatus therefor - Google Patents
Discharge method for discharging coal gas from rising pipe of coke oven and discharge apparatus thereforInfo
- Publication number
- JP2003261876A JP2003261876A JP2002064743A JP2002064743A JP2003261876A JP 2003261876 A JP2003261876 A JP 2003261876A JP 2002064743 A JP2002064743 A JP 2002064743A JP 2002064743 A JP2002064743 A JP 2002064743A JP 2003261876 A JP2003261876 A JP 2003261876A
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- Prior art keywords
- gas
- rising pipe
- coke oven
- coal
- coal gas
- 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.)
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Links
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- Coke Industry (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、コークス炉上昇管
からの石炭ガスの放出方法及び放出装置に係わり、特
に、石炭の乾留末期にコークス炉から、その上昇管の蓋
を開放して大気中に放出される石炭ガス中の未燃ガスの
燃焼を促進し、放出ガスに含まれる炭化水素等の濃度を
低減する技術に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for discharging coal gas from a coke oven ascending pipe, and more particularly, to an atmosphere in which the ascending pipe is opened from the coke oven at the final stage of coal carbonization. TECHNICAL FIELD The present invention relates to a technology for promoting the combustion of unburned gas in coal gas released into the air and reducing the concentration of hydrocarbons and the like contained in the released gas.
【０００２】[0002]
【従来の技術】コークス炉は、密閉された炭化室に装入
された石炭へ、該炭化室に隣接する燃焼室で発生させた
燃焼排ガスの熱を炉壁レンガを介して伝え、石炭をコー
クスヘと乾留する設備である。図２に、石炭乾留中の炭
化室０内の様子を模式的に示す。石炭１の乾留時には、
石炭１中の揮発成分が石炭ガス２として放出され、該石
炭ガス２は、図２に矢印ｆａで示すように、石炭層１の
上部から上昇管３を通じてドライメーン４（一種のガス
溜め）へ送り、回収して種々の用途に利用されている。
この石炭ガス２は、乾留の進行に応じて発生量や組成が
変化しており、乾留末期には、発生量が低下すると共
に、主成分がほぼ水素となってガスカロリーが低下する
ため、回収する価値がなくなる。2. Description of the Related Art A coke oven transfers the heat of combustion exhaust gas generated in a combustion chamber adjacent to the coal-charging chamber to a coal charged in a closed carbon-charging chamber through a furnace wall brick to transfer the coal to the coke. And equipment for dry distillation. FIG. 2 schematically shows a state in the carbonization chamber 0 during coal carbonization. During carbonization of coal 1,
Volatile components in the coal 1 are released as coal gas 2, and the coal gas 2 flows from the upper part of the coal bed 1 to the dry main 4 (a kind of gas reservoir) through the rising pipe 3 as shown by an arrow fa. It is sent, collected and used for various purposes.
The amount and composition of this coal gas 2 change according to the progress of carbonization. At the end of carbonization, the amount of gas generated decreases, and the main component is almost hydrogen, which reduces the gas calories. Worthless to do.
【０００３】また、乾留後のコークスを炭化室０から外
へ押出す前に、該炭化室０内の石炭装入孔８の周辺や炉
壁上部に付着したカーボン５を燃焼除去する必要もある
ため、図２に示すように、石炭乾留末期には、上昇管３
の蓋６（トップカバーともいう）を開放すると共に、ド
ライメーン４側との連結を弁７で遮断し、石炭装入孔
（以下、単に装入孔８という）から上昇管３へ向けてド
ラフトによる空気の流れ（矢印ｆｂ）を作り、カーボン
焼きを実施している。このカーボン焼きにより、上記の
炉内付着カーボン５が燃焼するばかりでなく、乾留末期
に石炭から発生する炭化水素等のガスも燃焼し、それら
の燃焼排ガスは上昇管３から大気中へ放出される。この
上昇管３から放出される燃焼排ガスには、未燃の石炭ガ
スが混入しているため、上昇管３の上方へ放出される際
に大気と接触することにより、燃焼し、火炎９が発生す
る。Further, before the coke after carbonization is pushed out of the carbonization chamber 0, it is necessary to burn and remove the carbon 5 adhering to the periphery of the coal charging hole 8 in the carbonization chamber 0 and the upper part of the furnace wall. Therefore, as shown in FIG.
The lid 6 (also referred to as a top cover) is opened, the connection with the dry main 4 side is shut off by the valve 7, and the draft is fed from the coal charging hole (hereinafter simply referred to as charging hole 8) toward the rising pipe 3. An air flow (arrow fb) is created by the above, and carbon firing is performed. Due to this carbon burning, not only the carbon 5 deposited in the furnace is burned, but also gases such as hydrocarbons generated from coal in the final stage of carbonization are burned, and the combustion exhaust gas is released from the rising pipe 3 to the atmosphere. . Since unburned coal gas is mixed in the combustion exhaust gas discharged from the rising pipe 3, when it is discharged to the upper side of the rising pipe 3, the combustion exhaust gas is burned to generate a flame 9. To do.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記装
入孔８から空気を自然に吸引させる方法では、発生した
未燃焼ガスを完全に燃焼できる酸素量が供給できず、ま
た該装入孔８及び炉壁上部に付着したカーボン５及び炭
化室０内で乾留を終了したコークスにも酸素が消費され
るため、発生ガス中の未燃焼ガスに十分な酸素が与えら
れず、燃焼しきれないまま大気に放散されてしまうとい
った問題点があった。また、上昇管３の蓋６を開放した
際には、該蓋６より上方に火炎９が形成されるが、放散
流の周囲から大気を自然に供給する従来の方式では、周
囲の横風に流されたり火炎９が乱たりして、放散ガスは
未燃となり、未燃焼ガスが大気中に放出されるといった
問題点もあった。However, in the method of naturally sucking air from the charging hole 8, the amount of oxygen capable of completely burning the generated unburned gas cannot be supplied, and the charging hole 8 and Oxygen is also consumed by carbon 5 adhering to the upper part of the furnace wall and coke that has finished dry distillation in the carbonization chamber 0, so that sufficient oxygen cannot be given to the unburned gas in the generated gas, and the atmosphere cannot be completely burned. There was a problem that it was dissipated in. Further, when the lid 6 of the ascending pipe 3 is opened, a flame 9 is formed above the lid 6, but in the conventional method in which the atmosphere is naturally supplied from the periphery of the diffused flow, a flame is generated in the surrounding crosswind. There is also a problem that the emitted gas becomes unburned due to being burnt or the flame 9 is disturbed, and the unburned gas is released into the atmosphere.
【０００５】本発明は、かかる事情に鑑み、大気中への
未燃ガスの放散量を従来より格段に低減可能なコークス
炉上昇管からの石炭ガスの放出方法及び放出装置を提供
することを目的としている。In view of such circumstances, it is an object of the present invention to provide a method and a device for discharging coal gas from a coke oven riser which can significantly reduce the amount of unburned gas released into the atmosphere. I am trying.
【０００６】[0006]
【課題を解決するための手段】発明者は、上記目的を達
成するため、種々研究を進め、その成果を本発明に具現
化した。In order to achieve the above object, the inventor has conducted various researches and realized the results in the present invention.
【０００７】すなわち、本発明は、コークス炉の石炭乾
留末期に、該コークス炉の上昇管の蓋を開放して、炭化
室内で発生した石炭ガスを大気中へ放出させるに際し
て、前記上昇管の先端部の平面視で、該上昇管の外周複
数位置で接線方向に助燃ガスを供給すると共に、該助燃
ガスを衝突板に当てて上昇管の円周に沿って旋回させる
ことを特徴とするコークス炉上昇管からの石炭ガスの放
出方法である。That is, according to the present invention, at the end of the carbonization of coal in the coke oven, when the lid of the ascending pipe of the coke oven is opened to release the coal gas generated in the carbonization chamber to the atmosphere, the tip of the ascending pipe is In a plan view of the section, a coke oven is supplied with auxiliary combustion gas in a tangential direction at a plurality of positions on the outer circumference of the rising pipe, and the auxiliary combustion gas is applied to a collision plate to swirl along the circumference of the rising pipe. This is a method of discharging coal gas from the rising pipe.
【０００８】また、本発明は、コークス炉で発生する石
炭ガスを大気中に放出する上昇管の先端部外周の複数位
置に設けられ、平面視で外周の接線方向に向けて助燃ガ
スを供給するガス噴射ノズルと、前記上昇管から放出さ
れる石炭ガスに旋回流を付与するように、供給された該
助燃焼ガスに衝突させる衝突板とを備えたことを特徴と
するコークス炉上昇管からの石炭ガスの放出装置であ
る。Further, according to the present invention, the auxiliary gas is provided at a plurality of positions on the outer circumference of the tip end portion of the rising pipe for discharging the coal gas generated in the coke oven into the atmosphere, and the auxiliary gas is supplied in a tangential direction of the outer circumference in plan view. A coke oven rising pipe comprising a gas injection nozzle and a collision plate for colliding with the supplied auxiliary combustion gas so as to impart a swirl flow to the coal gas discharged from the rising pipe. It is a device for discharging coal gas.
【０００９】本発明では、コークス炉上昇管の先端部に
設けた蓋の上方に、放散される石炭ガスに対し旋回をか
けるように、空気又は酸素等の助燃ガスを供給するよう
にしたので、石炭ガスの放散量の大小にかかわらず火炎
は安定し、放散される石炭ガスの燃焼性が改善される。
その結果、大気中に放出される未燃ガスが従来に比べて
格段に低減する。According to the present invention, since the coal gas emitted is swirled above the lid provided at the tip of the ascending pipe of the coke oven, the combustion supporting gas such as air or oxygen is supplied. The flame is stable regardless of the amount of coal gas emitted, and the combustibility of the emitted coal gas is improved.
As a result, the amount of unburned gas released into the atmosphere is significantly reduced as compared with the conventional one.
【００１０】[0010]
【発明の実施の形態】まず、発明者は、コークス炉上昇
管の先端から石炭ガスが放散される際の状況を詳細に観
察した。その結果を図３に示す。上昇管３の蓋６を開放
した際には、蓋６の位置より上方に火炎９が形成される
が（図３（ａ）参照）、従来のような放散流の周囲から
大気を自然に供給する方法では、周囲の横風に流された
り、火炎９が乱れたりして（図３（ｂ）参照）、石炭ガ
スは未燃焼となり、未燃のガス成分が大気中に放出され
ることがわかった。BEST MODE FOR CARRYING OUT THE INVENTION First, the inventor observed in detail the situation when coal gas was diffused from the tip of the rising pipe of the coke oven. The result is shown in FIG. When the lid 6 of the rising pipe 3 is opened, a flame 9 is formed above the position of the lid 6 (see FIG. 3 (a)), but the atmosphere is naturally supplied from around the diffused flow as in the conventional case. In this method, the coal gas becomes unburned and the unburned gas component is released into the atmosphere because it is blown by the surrounding crosswind or the flame 9 is disturbed (see FIG. 3B). It was
【００１１】そこで、発明者は、周囲の横風に流された
り、火炎９が乱れたりしない対策として、図４（ｂ）に
示すように、前記蓋６の上方で放散ガスに対して旋回を
かけ、できるだけ鉛直方向に放出させることにした。具
体的には、空気又は酸素等の助燃ガス１３（矢印）を、
ガス噴射ノズル１４を介して放散ガスの側面に対して
（上昇管３外周の接線方向に）積極的に吹き付けるよう
にした。これにより、火炎９の形状は安定し、放散ガス
の燃焼性が改善されると考えたからである。Therefore, the inventor swirls the emitted gas above the lid 6 as shown in FIG. 4 (b) as a measure to prevent the wind 9 from being disturbed by the surrounding crosswind. , I decided to release it as vertically as possible. Specifically, the auxiliary gas 13 (arrow) such as air or oxygen
The emission gas is positively blown to the side surface of the emitted gas (in the tangential direction of the outer circumference of the rising pipe 3) through the gas injection nozzle 14. This is because it is considered that the flame 9 has a stable shape and the combustibility of the emitted gas is improved.
【００１２】ところが、コークス炉乾留末期に放散され
る石炭ガスの発生量は一定ではなく、炉の火落ちからの
経過時間と共にその発生量が変化する。そのため、上昇
管外周の接線方向に供給する空気等の助燃ガスの運動量
に比べて、放散ガスの運動量が小さい場合、助燃ガス１
３が放散ガスの中を突き抜け、図４（ｃ）に示すように
膨らんだ火炎９を形成し、火炎温度が低下し、未燃ガス
の燃焼反応速度が低下する。その結果、石炭ガスは燃焼
反応が十分に進まない状態で大気中に放散されると考え
られた。However, the amount of coal gas emitted in the final stage of the carbonization of the coke oven is not constant, and the amount thereof changes with the lapse of time after the burnout of the furnace. Therefore, when the momentum of the emitted gas is smaller than the momentum of the auxiliary combustion gas such as air supplied in the tangential direction on the outer circumference of the rising pipe, the auxiliary combustion gas 1
3 penetrates the diffused gas to form a bulging flame 9 as shown in FIG. 4C, the flame temperature is lowered, and the combustion reaction rate of unburned gas is lowered. As a result, it was considered that the coal gas would be released into the atmosphere without the combustion reaction progressing sufficiently.
【００１３】そこで、発明者は、火炎の形状安定には、
放散ガスの旋回をもっと強化する必要があると考え、図
１（ａ）及び（ｂ）に示すように、上昇管３先端部の外
周部に前記供給された助燃ガス１３と衝突し、その流れ
を変える衝突阪１５を設けることにしたのである。これ
により、助燃ガス１３は、放散ガスを突き抜けることが
無くなり、その旋回を促進するようになる。つまり、放
散ガスの量が変化しても、安定した形状の火炎９が形成
されるようになり、放散ガスの燃焼性が改善されて大気
中に放出される未燃ガス成分の量が低減する。Therefore, the inventor has found that the shape of the flame is stable.
Considering that it is necessary to further strengthen the swirling of the emitted gas, as shown in FIGS. 1 (a) and 1 (b), it collides with the supplied auxiliary combustion gas 13 on the outer peripheral portion of the leading end of the rising pipe 3 and its flow. We decided to set up a collision slope 15 to change the. As a result, the auxiliary combustion gas 13 does not penetrate through the diffused gas and promotes its turning. That is, even if the amount of the emitted gas changes, the flame 9 having a stable shape is formed, the combustibility of the emitted gas is improved, and the amount of the unburned gas component released into the atmosphere is reduced. .
【００１４】また、上記衝突板１５を設けない場合に
は、助燃ガス１３を供給するガス噴射ノズル１４は、上
昇管３の外周に少なくとも６個は必要であったが、本発
明により衝突板１５を設け、放散ガスの旋回を強化する
と、３個のガス噴射ノズル１４及び衝突板１５の設置で
十分であることもわかった。従って、本発明により、ノ
ズル１４の数が低減でき、従来に比べノズル詰まり等の
発生も低減できるようになる。Further, when the collision plate 15 is not provided, at least six gas injection nozzles 14 for supplying the auxiliary combustion gas 13 are required on the outer circumference of the rising pipe 3. However, according to the present invention, the collision plate 15 is required. It was also found that the installation of the three gas injection nozzles 14 and the collision plate 15 is sufficient if the swirling of the emitted gas is enhanced by providing the above. Therefore, according to the present invention, the number of nozzles 14 can be reduced, and the occurrence of nozzle clogging or the like can be reduced as compared with the conventional case.
【００１５】[0015]
【実施例】以下、図面を参照して、より詳細に本発明を
説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail below with reference to the drawings.
【００１６】図１（ａ）及び（ｂ）は、それぞれ本発明
の一実施例を示す横断面図及び平面図である。1 (a) and 1 (b) are a cross-sectional view and a plan view showing an embodiment of the present invention, respectively.
【００１７】それらの図より明らかなように、本発明に
係る石炭ガスの放出装置は、コークス炉（図示せず）の
上昇管３の先端部に設けた水封座１２の周囲に、助燃ガ
ス（空気、酸素等）１３を供給するためのガスヘッダ１
６を取り付け、そのヘッダ１６に複数のガス噴射ノズル
１４を設けてある。そして、該ガス噴射ノズル１４の先
端は、平面視で図１（ａ）に示すように、上昇管３から
の放散ガスの接線方向に向けられている。また、ガスヘ
ッダ１６には、コンプレッサ１０より電磁弁１１を経て
圧縮空気が供給されるようになっている。さらに、助燃
ガスが噴射された先には、平面視で上昇管３の円周と同
心の円弧形状を有する衝突板１５が設置されている。As is clear from these drawings, the coal gas discharging apparatus according to the present invention is designed so that the auxiliary combustion gas is provided around the water sealing seat 12 provided at the tip of the rising pipe 3 of the coke oven (not shown). Gas header 1 for supplying (air, oxygen, etc.) 13
6, a plurality of gas injection nozzles 14 are provided on the header 16. The tip of the gas injection nozzle 14 is directed in the tangential direction of the gas emitted from the rising pipe 3 as shown in FIG. Compressed air is supplied to the gas header 16 from the compressor 10 via the electromagnetic valve 11. Further, a collision plate 15 having an arc shape concentric with the circumference of the rising pipe 3 in a plan view is installed at the tip of the injection of the auxiliary gas.
【００１８】かかる石炭ガスの放出装置を用いての放出
方法は、以下の通りである。The discharging method using such a coal gas discharging device is as follows.
【００１９】まず、コークス炉炭化室で石炭の乾留が終
了すると、図２に示した装入孔８及び炉壁に付着したカ
ーボン５を燃焼除去するために、上昇管３の蓋６を開放
すると同時に、前記電磁弁１１を開とし、コンプレッサ
１０より高圧の空気をガスヘッダ１６に供給し、ガス噴
射ノズル１４から放散ガスに対し噴射する。First, when the carbonization in the coke oven is completed, the lid 6 of the rising pipe 3 is opened to burn and remove the carbon 5 adhering to the charging hole 8 and the furnace wall shown in FIG. At the same time, the solenoid valve 11 is opened, high-pressure air is supplied from the compressor 10 to the gas header 16, and the gas injection nozzle 14 injects the emitted gas.
【００２０】その結果、上昇管３の上方で形成された火
炎９は、正常な旋回流となり、横風があっても安定に維
持された。また、火炎９の長さも、従来の１／２程度に
短くなり、良好な火炎が形成された。さらに、従来の装
入孔８及び上昇管３先端の蓋６を開放するだけ方法で
は、水封座１２の上方４ｍの位置で測定した放散ガス中
の炭化水素ガスの濃度は３２０ｍｇ／ｍ3（標準状態）
であったが、上記した本発明に係る放出方法によれば、
炭化水素ガスの濃度は６０ｍｇ／ｍ3（標準状態）まで
減少でき、約１／５とすることができた。As a result, the flame 9 formed above the rising pipe 3 became a normal swirling flow, and was stably maintained even in the presence of a cross wind. In addition, the length of the flame 9 was shortened to about half that of the conventional flame, and a good flame was formed. Further, according to the conventional method of only opening the charging hole 8 and the lid 6 at the tip of the rising pipe 3, the concentration of hydrocarbon gas in the emission gas measured at a position 4 m above the water sealing seat 12 is 320 mg / m 3 ( (Standard condition)
However, according to the release method of the present invention described above,
The concentration of the hydrocarbon gas could be reduced to 60 mg / m 3 (standard state), and could be about 1/5.
【００２１】[0021]
【発明の効果】以上述べたように、本発明により、コー
クス炉の石炭乾留末期に上昇管の蓋を開放して炭化室内
で発生したガスを大気中に放散するに際して、大気中へ
の未燃ガスの放散量を従来より格段に低減できるように
なる。As described above, according to the present invention, when the lid of the rising pipe is opened and the gas generated in the carbonization chamber is released to the atmosphere at the end of the carbonization of coal in the coke oven, the unburned gas in the atmosphere is not burned. The amount of gas emission can be significantly reduced compared to the conventional one.
【図１】本発明に係るコークス炉上昇管からの石炭ガス
の放出装置を示す図であり、（ａ）は横断面、（ｂ）は
平面である。FIG. 1 is a view showing a device for discharging coal gas from a coke oven rising pipe according to the present invention, in which (a) is a cross section and (b) is a plane.
【図２】一般的なコークス炉を示す横断面図である。FIG. 2 is a cross-sectional view showing a general coke oven.
【図３】コークス炉上昇管から放出された石炭ガスの燃
焼による火炎を示す図であり、（ａ）は、正常な火炎、
（ｂ）は横風の影響で乱れた火炎である。FIG. 3 is a diagram showing a flame due to combustion of coal gas discharged from a coke oven rising pipe, in which (a) is a normal flame,
(B) is a flame disturbed by the influence of cross wind.
【図４】本発明の基礎としたコークス炉上昇管より放出
された石炭ガスの火炎を観察した結果を示す図であり、
（ａ）は石炭ガスの旋回がない場合、（ｂ）は旋回が適
正な場合、（ｃ）は助燃ガスの供給過多の場合である。FIG. 4 is a diagram showing a result of observing a flame of coal gas discharged from a rising pipe of a coke oven, which is a basis of the present invention;
(A) is the case where the coal gas is not swirled, (b) is the case where the swirl is proper, and (c) is the case where the supplementary combustion gas is excessively supplied.
【符号の説明】 ０ 炭化室 １ 石炭 ２ 石炭ガス ３ 上昇管 ４ ドライメーン ５ カーボン ６ 蓋 ７ 弁 ８ 石炭装入孔 ９ 火炎 １０ コンプレッサ １１ 電磁弁 １２ 水封座 １３ 助燃ガス １４ ガス噴射ノズル １５ 衝突板 １６ ガスヘッダ[Explanation of symbols] 0 carbonization chamber 1 coal 2 coal gas 3 riser 4 Dry Main 5 carbon 6 lid 7 valves 8 coal charging holes 9 flames 10 compressor 11 Solenoid valve 12 Water Seal 13 supporting gas 14 Gas injection nozzle 15 collision plate 16 gas header
フロントページの続き (72)発明者 小澤 達也 千葉県千葉市中央区川崎町１番地 川崎製 鉄株式会社千葉製鉄所内Continued front page (72) Inventor Tatsuya Ozawa 1 Kawasaki-cho, Chuo-ku, Chiba-shi, Chiba Made in Kawasaki Chiba Steel Works, Ltd.
Claims (2)
ス炉の上昇管の蓋を開放して、炭化室内で発生した石炭
ガスを大気中へ放出させるに際して、 前記上昇管の先端部の平面視で、該上昇管の外周複数位
置で接線方向に助燃ガスを供給すると共に、該助燃ガス
を衝突板に当てて上昇管の円周に沿って旋回させること
を特徴とするコークス炉上昇管からの石炭ガスの放出方
法。1. At the end of the carbonization of coal in a coke oven, when the lid of the ascending pipe of the coke oven is opened to release the coal gas generated in the carbonization chamber into the atmosphere, the tip of the ascending pipe is seen in a plan view. In addition, while supplying auxiliary combustion gas in a tangential direction at a plurality of positions on the outer circumference of the rising pipe, the auxiliary combustion gas is applied to the collision plate to swirl along the circumference of the rising pipe, How to release coal gas.
に放出する上昇管の先端部外周の複数位置に設けられ、
平面視で外周の接線方向に向けて助燃ガスを供給するガ
ス噴射ノズルと、前記上昇管から放出される石炭ガスに
旋回流を付与するように、供給された該助燃焼ガスに衝
突させる衝突板とを備えたことを特徴とするコークス炉
上昇管からの石炭ガスの放出装置。2. A plurality of positions are provided on the outer circumference of the tip end portion of a rising pipe for discharging coal gas generated in a coke oven into the atmosphere,
A gas injection nozzle for supplying auxiliary combustion gas toward the tangential direction of the outer periphery in plan view, and a collision plate for colliding with the supplied auxiliary combustion gas so as to impart a swirl flow to the coal gas discharged from the rising pipe A device for discharging coal gas from a riser of a coke oven, characterized by comprising:
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002064743A JP3956727B2 (en) | 2002-03-11 | 2002-03-11 | Method and apparatus for releasing coal gas from coke oven riser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002064743A JP3956727B2 (en) | 2002-03-11 | 2002-03-11 | Method and apparatus for releasing coal gas from coke oven riser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003261876A true JP2003261876A (en) | 2003-09-19 |
| JP3956727B2 JP3956727B2 (en) | 2007-08-08 |
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|---|---|---|---|
| JP2002064743A Expired - Fee Related JP3956727B2 (en) | 2002-03-11 | 2002-03-11 | Method and apparatus for releasing coal gas from coke oven riser |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109054870A (en) * | 2018-09-28 | 2018-12-21 | 中冶焦耐(大连)工程技术有限公司 | A kind of coke oven coke oven uprising tube leads fiery device and its working method |
| CN109054871A (en) * | 2018-09-28 | 2018-12-21 | 中冶焦耐(大连)工程技术有限公司 | A kind of coordinated type of coke oven coke oven uprising tube leads fiery device and its working method |
-
2002
- 2002-03-11 JP JP2002064743A patent/JP3956727B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109054870A (en) * | 2018-09-28 | 2018-12-21 | 中冶焦耐(大连)工程技术有限公司 | A kind of coke oven coke oven uprising tube leads fiery device and its working method |
| CN109054871A (en) * | 2018-09-28 | 2018-12-21 | 中冶焦耐(大连)工程技术有限公司 | A kind of coordinated type of coke oven coke oven uprising tube leads fiery device and its working method |
| CN109054870B (en) * | 2018-09-28 | 2023-08-25 | 中冶焦耐(大连)工程技术有限公司 | Fire guiding device of coke oven ascending pipe and working method thereof |
| CN109054871B (en) * | 2018-09-28 | 2023-08-25 | 中冶焦耐(大连)工程技术有限公司 | Linkage type fire guiding device of coke oven ascending pipe and working method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3956727B2 (en) | 2007-08-08 |
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