JPH03195797A - Removal of carbon on wall of coke oven and equipment therefor - Google Patents
Removal of carbon on wall of coke oven and equipment thereforInfo
- Publication number
- JPH03195797A JPH03195797A JP33758989A JP33758989A JPH03195797A JP H03195797 A JPH03195797 A JP H03195797A JP 33758989 A JP33758989 A JP 33758989A JP 33758989 A JP33758989 A JP 33758989A JP H03195797 A JPH03195797 A JP H03195797A
- Authority
- JP
- Japan
- Prior art keywords
- carbon
- coke
- rack beam
- oxygen
- coke oven
- 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
- 239000000571 coke Substances 0.000 title claims abstract description 41
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 36
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 239000007789 gas Substances 0.000 claims abstract description 31
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 21
- 239000001301 oxygen Substances 0.000 claims abstract description 21
- 238000001125 extrusion Methods 0.000 claims abstract description 17
- 238000005086 pumping Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 abstract description 4
- 210000003323 beak Anatomy 0.000 abstract 1
- 238000003763 carbonization Methods 0.000 description 19
- 238000000034 method Methods 0.000 description 15
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 238000007789 sealing Methods 0.000 description 5
- 239000003245 coal Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 150000001721 carbon Chemical class 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
Landscapes
- Coke Industry (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明は、コークス炉炭化室の炉壁に付着したカーボ
ンの除去方法およびその装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to a method and apparatus for removing carbon deposited on the walls of a coke oven carbonization chamber.
従来の技術
］−クス炉炭化室の各部炉壁には、乾留時に発生するコ
ークス炉ガスの熱分解によって生じるカーボン、あるい
は石炭装入時に飛散する微粉炭が炉壁に付着してコーク
ス化することによるカーボンが付着する。[Prior art] - Carbon produced by the thermal decomposition of coke oven gas generated during carbonization, or pulverized coal scattered during coal charging, adheres to the furnace walls of each part of the coke oven carbonization chamber and turns into coke. Carbon adheres to the surface.
この炉壁付着カーボンは、炉壁煉瓦の目地を緻密に閉塞
し、炭化室から燃焼室へのガスリークを防止する働きが
あり、ある程度必要である。しかし、一方ではそのまま
放置しておくと成長して炉壁の熱伝導率を低下させ、炭
化室の有効容積を減少させて炉の生産性を低下させ、さ
らにコークスの押し止まり、押し詰まりにつながり、炉
体損傷の原因となる。このため、定期的に除去すること
が必要である。This carbon deposited on the furnace wall closely closes the joints of the furnace wall bricks and has the function of preventing gas leakage from the carbonization chamber to the combustion chamber, and is therefore necessary to some extent. However, if left as is, it will grow and reduce the thermal conductivity of the furnace walls, reduce the effective volume of the coking chamber, reduce furnace productivity, and lead to coke retention and clogging. , causing damage to the furnace body. Therefore, it is necessary to remove it periodically.
この炉壁に付着したカーボンの除去方法としては、下記
のとおり従来から種々の方法が提案されている。Various methods have been proposed to remove carbon adhering to the furnace walls, as described below.
■ 先端の尖った長さ５〜６ｍのヤリ状の治具を使用し
、人力により突落して除去する。■ Use a spear-like jig with a sharp tip and a length of 5 to 6 meters to remove it by dropping it manually.
■ 炭化室の上面もしくは側面の一部を開放し、該炭化
室内に設けた噴射ノズルを介して高速の酸素または空気
などを噴射して炭化室内を旋回せしめる方法（特開昭６
１−２１１８７号公報）。■ A method in which a part of the top or side surface of the carbonization chamber is opened, and high-speed oxygen or air is injected through an injection nozzle installed in the carbonization chamber to swirl the inside of the carbonization chamber (Japanese Patent Laid-Open No. 6
1-21187).
■ コークス排出完了後、前の炭化室に石炭を装入中、
排出完了炭化室の上面あるいは側面の一部を開放し、噴
射ノズルを挿入して酸素含有気体を噴射する方法（特開
昭６１−２３１０８８号公報）。■ After coke discharge is completed, coal is being charged into the previous carbonization chamber.
A method of opening a part of the upper surface or side surface of the discharged carbonization chamber, inserting an injection nozzle, and injecting oxygen-containing gas (Japanese Patent Laid-Open No. 61-231088).
■ コークス炉の炭化室に沿って移動自在の基台に、噴
射ノズルを設けたランスを進退自在に設け、ランスの噴
射ノズルの吐出方向を炭化室側壁とほぼ平行に位置せし
め、気体用源とランスを連設した装置（特開昭６２−１
６１８８４号公報）。■ A lance equipped with an injection nozzle is installed on a base that is movable along the carbonization chamber of the coke oven so that it can move forward and backward, and the discharge direction of the injection nozzle of the lance is positioned almost parallel to the side wall of the carbonization chamber. Device with a series of lances (Unexamined Japanese Patent Publication No. 62-1
61884).
しかしながら、ヤリ状の治具を用いて炉上から人力によ
り付着カーボンを突落す方法は、カーボン層が炉壁から
完全に剥離し、カーボンの有する炉壁目地部のシール機
能が損われ、炭化室がら燃焼室へのガスリークが発生す
るばかりでなく、高熱下の重筋力労働であることや、こ
のカーボン突落し作業中は、窯出し作業を中断せざるを
得ない。However, when using a spear-shaped jig to manually drop adhering carbon from the top of the furnace, the carbon layer completely peels off from the furnace wall, impairing the sealing function of the carbon at the furnace wall joints, and causing the carbonization chamber to dry. Not only does this cause gas leaks into the combustion chamber, but it also requires heavy physical labor under high heat, and the unloading of the kiln has to be interrupted while the carbon falls off.
特開昭６１−２１１８７号公報の方法は、高速の気体を
噴射して旋回させるため、炉壁全面のカーボン除去はあ
る程度可能であるが、設備が大型化するだけでなく、熱
風が炭化室内を旋回するため、付着カーボンの少ない部
分では、過度にカーボンが除去されて目地部のシール性
が損われる。また、カーボン焼落し中は、炭化室内が高
温に晒されるため、炉蓋の熱歪みや、天井部の温度変化
による目地部の損傷の原因となる。The method disclosed in JP-A No. 61-21187 injects and swirls high-speed gas, so it is possible to remove carbon from the entire surface of the furnace wall to some extent, but it not only increases the size of the equipment, but also causes hot air to flow inside the carbonization chamber. Because of the rotation, carbon is removed excessively in areas where there is little carbon adhesion, impairing the sealing performance of the joint. Furthermore, during carbon burning, the inside of the carbonization chamber is exposed to high temperatures, which causes thermal distortion of the furnace lid and damage to joints due to temperature changes in the ceiling.
また、特開昭６１−２３１０８８号公報に記載の方法は
、空気導入部の炉壁の付着カーボンが初期に燃焼除去さ
れ、その後は冷空気が通過するため、局部的に過冷却さ
れて煉瓦のスポーリング等の損傷や、目地部のシール性
が損われる。In addition, in the method described in JP-A No. 61-231088, the carbon adhering to the furnace wall of the air introduction section is initially burned and removed, and then cold air passes through, resulting in local supercooling of the bricks. Damage such as spalling may occur, and the sealing performance of joints may be impaired.
さらに、特開昭６２−１６１８８４号公報に記載の方法
は、供給気体が少量で局部的なカーボン除去には有効で
あるが、炭化室全面のカーボン除去には、炉壁全面にノ
ズルを配置するか、あるいは炉壁全面を走査させる必要
がある。しかし、炉壁全面にノズルを配置するするのは
、設備が極めて大きくなり実用的でなく、炉壁全面を走
査させるには多大の時間を必要とし、効率的な方法では
ない。Furthermore, the method described in JP-A No. 62-161884 is effective for localized carbon removal with a small amount of supplied gas; Or, it is necessary to scan the entire furnace wall. However, arranging nozzles all over the furnace wall requires extremely large equipment and is not practical, and scanning the entire furnace wall requires a large amount of time, which is not an efficient method.
発明が解決しようとする課題
この発明は、上記状況に鑑みなされたもので、多額の設
備投資を必要とせず、コークス炉炉壁に付着したカーボ
ンを、均一かつ迅速に、しかも炭化室壁を過冷却するこ
となく、また炉壁のシール性を保持しながら除去できる
方法ならびにその装置を提供するものである。Problems to be Solved by the Invention The present invention was made in view of the above situation, and it is possible to remove carbon adhered to the coke oven wall uniformly and quickly, without the need for a large capital investment, and to pass through the carbonization chamber wall. The object of the present invention is to provide a method and an apparatus for removing the furnace wall without cooling and while maintaining the sealing properties of the furnace wall.
課題を解決するための手段
本発明者らは、上記課題を解決すべく種々検討の結果、
押出機のラックビームが炭化室からのコークスを排出の
たびに、炭化室内を進退することに着目し、該ラックビ
ームを利用して酸素含有気体を噴射すれば、コークス排
出作業と同時に、炉壁付着カーボンが除去できることを
究明し、この発明に到達した。Means for Solving the Problems As a result of various studies to solve the above problems, the present inventors found that
Focusing on the fact that the rack beam of the extruder moves back and forth within the coke chamber each time it discharges coke from the coke chamber, if the rack beam is used to inject oxygen-containing gas, the furnace wall will be removed at the same time as the coke discharge operation. We have discovered that adhering carbon can be removed and have arrived at this invention.
すなわちこの発明は、コークス炉押出機のラックビーム
の中空部を介して酸素含有気体を供給し、ラックビーム
に設けたノズルからコークス押出時に酸素含有気体を炉
内に噴射するのである。That is, in this invention, oxygen-containing gas is supplied through the hollow part of a rack beam of a coke oven extruder, and the oxygen-containing gas is injected into the furnace from a nozzle provided in the rack beam during coke extrusion.
また、コークス炉押出機のラックビームに、該ビームの
中空部と連通ずる少なくとも１個のノズルを設置し、前
記ラックビームまたは押出機に設置した気体圧送装置と
前記ビームの中空部を介して接続したものである。Further, at least one nozzle communicating with the hollow part of the beam is installed in the rack beam of the coke oven extruder, and connected to a gas pumping device installed in the rack beam or the extruder through the hollow part of the beam. This is what I did.
作 用
この発明によれば、コークス押出時に酸素含有気体を噴
射するため、カーボン除去作業のための時間が不要で、
作業時間が通常操業と変らず、簡便にカーボン除去がで
きる。また、酸素含有気体は、ラックビームの中空部を
通過するため、ノズル出口まで炉壁と接触することなく
送風され、また、加熱されたビームによって予熱されて
ノズルから噴射されるので、炉壁を過冷却することはな
い。さらに、ラックビームは酸素含有気体との熱交換に
よって冷却されるから、熱による曲りを防止することが
でき、曲り発生による押出し抵抗を低減することが可能
である。Effect According to this invention, since oxygen-containing gas is injected during coke extrusion, there is no need for time for carbon removal work.
Carbon removal can be done easily and in the same working time as normal operation. In addition, since the oxygen-containing gas passes through the hollow part of the rack beam, it is blown to the nozzle exit without coming into contact with the furnace wall.Also, since it is preheated by the heated beam and injected from the nozzle, the oxygen-containing gas does not touch the furnace wall. There is no overcooling. Furthermore, since the rack beam is cooled by heat exchange with the oxygen-containing gas, it is possible to prevent bending due to heat, and it is possible to reduce extrusion resistance due to bending.
しかも、移動台車として押出機を、また進退自在のラン
スとしてラックビームを利用するから、設備費が極めて
安価となる。Moreover, since an extruder is used as a movable cart and a rack beam is used as a lance that can move forward and backward, the equipment cost is extremely low.
実 施 例
実施例１
第１図は、この発明の方法を実施する炉壁カーボン除去
装置の一例を示すもので、コークス炉（１）の炭化室（
２）から押出機（３）によって、赤熱コークス（４）を
コークガイド車（５）を介して消火車（６）に排出して
いる状況を示している。Embodiments Example 1 FIG. 1 shows an example of a furnace wall carbon removal apparatus for carrying out the method of the present invention.
The extruder (3) discharges red-hot coke (4) from 2) to the fire extinguisher (6) via the coke guide car (5).
カーボン焼落し用の酸素含有低圧気体は、押出機（３）
のラックビーム（７）の中空部を通して後端から供給さ
れる。ラックビーム（７）の先端部には中空部に連通ず
るノズル（８）、（９）が設置され、ラックビーム（７
）の後端に設けた気体圧送装置（１０）により供給され
る酸素含有低圧気体が、ノズル（８）、（９）を介して
炭化室（２）内に噴射される。The oxygen-containing low-pressure gas for burning off the carbon is supplied to the extruder (3).
from the rear end through the hollow part of the rack beam (7). Nozzles (8) and (9) communicating with the hollow part are installed at the tip of the rack beam (7).
) is injected into the carbonization chamber (2) through nozzles (8) and (9).
気体圧送装置（１０）は、ラックビーム（７）と独立し
て設置することもできる。その場合はラックビーム（７
）の中空部に酸素含有気体を供給するための接続配管が
必要となる。The gas pumping device (10) can also be installed independently of the rack beam (7). In that case, rack beam (7
) A connecting pipe is required to supply oxygen-containing gas to the hollow part of the pipe.
気体圧送装置（１０）は、巻取りドラム（１１）によっ
て電源と接続されている。また、ノズル（８）はラック
ビーム（７）内に設けたノズルで、酸素含有低圧気体の
噴射方向は、押出様（３）側あるいはコークガイド車（
５）側のどちらでもよい。また、噴射角度は、カーボン
付着位置に合せてその都度変更することもできる。さら
に、ノズル（９）は、ラックビーム（７）の上部または
下部に設置した補助ダクト（１２）に付設したもので、
ノズル（８）と同様に両方向噴射することもできる。The gas pumping device (10) is connected to a power source by a winding drum (11). In addition, the nozzle (8) is a nozzle installed in the rack beam (7), and the injection direction of the oxygen-containing low-pressure gas is the extrusion member (3) side or the coke guide wheel (
5) Either side is fine. Moreover, the injection angle can be changed each time according to the carbon adhesion position. Furthermore, the nozzle (9) is attached to an auxiliary duct (12) installed at the top or bottom of the rack beam (7),
Similar to the nozzle (8), it is also possible to spray in both directions.
酸素含有低圧気体の供給量は、付着カーボン量に応じて
調整すればよく、また、コークス押出し時のラックビー
ム（７）の前進時および／または後進時に供給すればよ
い。The amount of oxygen-containing low-pressure gas to be supplied may be adjusted depending on the amount of deposited carbon, and may be supplied when the rack beam (7) moves forward and/or backward during coke extrusion.
さらに、酸素含有低圧気体の圧送装置（１０）をラック
ビーム（７）と独立して設置する場合、押出機（３）上
に圧送装置（１０）を設置するか、あるいは、コークス
炉団と平行に酸素含有低圧気体の供給のための固定配管
を設け、コークス押出し時にラックビーム（７）と接続
配管を介して接続し、酸素含有低圧気体を供給すること
もできる。Furthermore, when the oxygen-containing low-pressure gas pumping device (10) is installed independently of the rack beam (7), the pumping device (10) is installed on the extruder (3) or parallel to the coke oven group. A fixed piping for supplying oxygen-containing low-pressure gas may be provided in the coke-extrusion system, and the low-pressure oxygen-containing gas may be supplied by connecting to the rack beam (7) via a connecting piping during coke extrusion.
実施例２
炉高７１２５ｍｍ、炉幅４５００＋１１．炉長１６５０
０ｍａ＋のコークス炉において、実施例１の装置を用い
、カーボン焼落し用の酸素含有気体として空気を使用し
、６ＯＮｍ”／ｗｉｎの空気をコークス押出し時、ラッ
クビーム前進時に４０秒間、ラックビーム後進時に３０
秒間それぞれ噴射し、この操作を同一炭化室について連
続２０回コークス押出しのたびごとに実施した。空気の
噴射方向は、コークス押出し方向に対して逆方向のみと
した。Example 2 Furnace height 7125mm, furnace width 4500+11. Furnace chief 1650
In a 0ma+ coke oven, the apparatus of Example 1 was used, air was used as the oxygen-containing gas for burning off carbon, and 6ONm"/win of air was applied during coke extrusion, for 40 seconds when the rack beam was moving forward, and when the rack beam was moving backwards. 30
This operation was performed for each 20 consecutive coke extrusions in the same carbonization chamber. The direction of air injection was only in the opposite direction to the direction of coke extrusion.
また、ノズル部とラックビーム先端部の間に放射温度計
を炉底から１ｍ、３ｍ、５ｍの位置に取付け、ラックビ
ーム後進時に炭化室壁温度を測定した。その結果をカー
ボンの焼落しを実施しない窯と比較して第１表に示す。Furthermore, radiation thermometers were installed between the nozzle part and the tip of the rack beam at positions 1 m, 3 m, and 5 m from the bottom of the furnace, and the temperature of the coking chamber wall was measured when the rack beam was moving backward. The results are shown in Table 1 in comparison with a kiln that does not burn off carbon.
また、押出し時の最大負荷電流値を第２表に示す。Further, the maximum load current value during extrusion is shown in Table 2.
以下余白
第１表
その結果、本発明法を実施した窯では、炉壁全面に亙っ
てカーボンの燃焼除去が目視観察された。As a result, in the kiln in which the method of the present invention was implemented, combustion and removal of carbon was visually observed over the entire surface of the furnace wall.
また、第１表に示すとおり、放射温度計にょる炉壁温度
の測定結果は、カーボン焼落しの有無によって差はなく
、むしろカーボンの焼落しを行った本発明法の方が、若
干高がった。さらに、第２表に示すとおり、コークス押
出し時の負荷電流最大値は、２０回押出し後でカーボン
の焼落しを実施しない比較例では、２５アンペア高くな
っているのに対し、本発明法では、５３アンペア低下し
ていた。Furthermore, as shown in Table 1, there is no difference in the measurement results of the furnace wall temperature using a radiation thermometer depending on whether or not carbon is burnt off.In fact, the temperature of the furnace wall measured by the radiation thermometer is slightly higher when using the method of the present invention, which burns off carbon. It was. Furthermore, as shown in Table 2, the maximum load current during coke extrusion is 25 amperes higher in the comparative example in which carbon burn-off is not performed after 20 extrusions, whereas in the method of the present invention, It was down by 53 amperes.
１２・・・補助ダクト、
発明の詳細
な説明したとおりこの発明方法および装置によれば、コ
ークス炉炭化室炉壁に付着したカーボンを、均一かつ迅
速に、しかも炭化室炉壁を過冷却することなく、また、
炉体目地部のシール性を損うことなく除去することが可
能である。また、押出様とラックビームを有効活用して
いるため、設備費が大幅に安くなり、しかも、ラックビ
ームの熱による曲りをも防止できる極めてすぐれた力、
−ボン除去方法および装置である。12...Auxiliary duct As described in detail, according to the method and apparatus of the present invention, carbon attached to the wall of the coke oven carbonization chamber can be uniformly and quickly supercooled, and the wall of the coke chamber can be supercooled. Not, also,
It can be removed without impairing the sealing properties of the joints of the furnace body. In addition, since the extrusion pattern and rack beam are effectively used, equipment costs are significantly reduced, and the rack beam has extremely high strength that prevents it from bending due to heat.
- A bong removal method and apparatus.
第１図はこの発明のカーボン除去装置の一例を示す概略
説明図である。
１・・・コークス炉、
３・・・押出機、
５・・・コークガイド車、
７・・・ラックビーム、
ｌＯ・・・気体圧送装置、
２・・・炭化室、
４・・・赤熱コークス、
６・・・消火車、
８．９・・・ノズル、
１１・・・巻取りドラム、FIG. 1 is a schematic explanatory diagram showing an example of a carbon removal device of the present invention. DESCRIPTION OF SYMBOLS 1... Coke oven, 3... Extruder, 5... Coke guide car, 7... Rack beam, lO... Gas pumping device, 2... Carbonization chamber, 4... Red-hot coke , 6... Fire extinguisher, 8.9... Nozzle, 11... Winding drum,
Claims (1)
酸素含有気体を供給し、ラックビームに設けたノズルか
らコークス押出時に酸素含有気体を炉内に噴射すること
を特徴とするコークス炉炉壁カーボンの除去方法。 ２ コークス炉押出機のラックビームに、該ビームの中
空部と連通する少なくとも１個のノズルを設置し、前記
ラックビームまたは押出機に設置した気体圧送装置と前
記ビームの中空部を介して接続したことを特徴とするコ
ークス炉炉壁カーボンの除去装置。[Claims] 1 A coke oven extruder is characterized in that an oxygen-containing gas is supplied through a hollow part of a rack beam, and the oxygen-containing gas is injected into the furnace from a nozzle provided in the rack beam during extrusion of coke. How to remove carbon from coke oven walls. 2 A rack beam of a coke oven extruder is equipped with at least one nozzle that communicates with a hollow part of the beam, and connected to a gas pumping device installed in the rack beam or extruder through the hollow part of the beam. A coke oven wall carbon removal device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33758989A JPH03195797A (en) | 1989-12-25 | 1989-12-25 | Removal of carbon on wall of coke oven and equipment therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33758989A JPH03195797A (en) | 1989-12-25 | 1989-12-25 | Removal of carbon on wall of coke oven and equipment therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03195797A true JPH03195797A (en) | 1991-08-27 |
Family
ID=18310072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33758989A Pending JPH03195797A (en) | 1989-12-25 | 1989-12-25 | Removal of carbon on wall of coke oven and equipment therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03195797A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63312390A (en) * | 1987-06-16 | 1988-12-20 | Sumitomo Metal Ind Ltd | Method for removing carbon of carbonization chamber of coke oven |
-
1989
- 1989-12-25 JP JP33758989A patent/JPH03195797A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63312390A (en) * | 1987-06-16 | 1988-12-20 | Sumitomo Metal Ind Ltd | Method for removing carbon of carbonization chamber of coke oven |
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