JP2001003061A - Apparatus for cleaning coal charging opening of coke oven - Google Patents
Apparatus for cleaning coal charging opening of coke ovenInfo
- Publication number
- JP2001003061A JP2001003061A JP11172537A JP17253799A JP2001003061A JP 2001003061 A JP2001003061 A JP 2001003061A JP 11172537 A JP11172537 A JP 11172537A JP 17253799 A JP17253799 A JP 17253799A JP 2001003061 A JP2001003061 A JP 2001003061A
- Authority
- JP
- Japan
- Prior art keywords
- coal
- hole
- nozzle
- carbon
- charging
- 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]
【発明の属する技術分野】本発明は、コークス炉の炭化
室へ石炭を装入する装炭孔に付着したカーボンを除去す
るための掃除装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning apparatus for removing carbon adhering to a coal charging hole for charging coal into a coking chamber of a coke oven.
【0002】[0002]
【従来の技術】室炉式コークス炉においては、石炭乾留
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
ーボンが、炭化室の炉壁、天井部、装炭孔部に付着す
る。この付着カーボンは、煉瓦の目地を緻密に閉塞し、
炭化室から燃焼室へのガス漏れを防止するという有効な
働きがある。2. Description of the Related Art In a coke oven furnace, carbon generated by pyrolysis of coke oven gas generated during coal carbonization adheres to the furnace wall, ceiling, and coal hole of the coking chamber. This adhered carbon closes the joints of the brick densely,
There is an effective function of preventing gas leakage from the carbonization chamber to the combustion chamber.
【0003】しかし、炉壁付着カーボンは、そのまま放置し
ておくと成長して炭化室の有効容積を減少させ、コーク
ス炉の生産性を低下させるばかりでなく、コークスの押
止まり、押詰まりにつながり、炉体損傷の原因となる。
また、装炭孔部の付着カーボンは、そのまま放置してお
くと、炭化室への石炭の装入を困難にする原因となる。
このため、炭化室の炉壁、天井部、装炭孔部に付着した
カーボンは、定期的に除去することが必要である。[0003] However, the carbon deposited on the furnace wall grows if left as it is, reducing the effective volume of the coking chamber, lowering the productivity of the coke oven, and also leading to the coke being stopped and clogged. , Causing damage to the furnace body.
In addition, if the deposited carbon in the coal charging hole is left as it is, it becomes a cause of difficulty in charging coal into the carbonization chamber.
For this reason, it is necessary to periodically remove carbon adhering to the furnace wall, the ceiling, and the coal hole of the carbonization chamber.
【0004】装炭孔部に付着したカーボンの除去方法として
は、従来人力によって先端の尖ったヤリと称する突棒を
用いて突落とす方法が一般的であった。しかしながら、
この方法は、多大の労力を要するばかりでなく、装炭
孔、上昇管を開放して行うため、安全上の問題、除去さ
れたカーボン粉が周囲近郊に飛散する環境上の問題があ
る。[0004] As a method of removing carbon adhering to the coal hole, conventionally, a method of removing the carbon by using a protruding rod called a spear having a sharp tip has been generally used. However,
This method not only requires a great deal of labor, but also has a safety problem and an environmental problem in which the removed carbon powder is scattered to the surrounding suburbs, since the method is performed by opening the coal charging hole and the riser pipe.
【0005】他の方法としては、炭化室群の任意の炭化室の
コークスを排出後、前の炭化室に石炭を装入中に、該排
出完了炭化室の上面もしくは側面の一部を開放するとと
もに、噴射ノズルを挿入して酸素を含む気体を噴射し、
付着カーボンを燃焼せしめ、次いで石炭を装入する方法
(特開昭61-231088号公報)、周面に装炭孔や炉壁の付着
カーボンに酸素を含む気体を吹きつける装炭孔側吹き出
し口および炉壁側吹き出し口が形成された筒状のランス
内面に、装炭孔側および/または炉壁側の吹き出し口か
ら吹き出される前記気体の風量を調整する風量調節体を
昇降可能に設けたカーボン燃焼除去用ランス(特開平7-1
38573号公報)、装炭孔内に垂下するランスの周囲および
垂下方向、またはいずれか一方に装炭孔内壁を指向した
複数のノズルを設けるとともに、該ランスの筒内に吹き
込みガス抵抗体を垂下して抵抗体を変化せしめて吹き込
みガスの噴出角度を調整するカーボン燃焼除去方法(特
開平6-100864号公報)、コークス炉上を移動する台車
に、炭化室の装炭孔近傍部用の空気または酸素付加空気
の高圧噴出ノズルを設け、かつ、該炭化室中央部用の空
気または酸素付加空気の低圧噴出ノズルを具備するラン
スを設けた付着カーボン除去装置(特許第2561787号公
報)等が提案されている。[0005] As another method, after discharging the coke in any of the coking chambers of the coking chamber group, while charging coal into the preceding coking chamber, a part of the upper surface or side surface of the discharging completed coking chamber is opened. At the same time, insert an injection nozzle to inject gas containing oxygen,
How to burn the deposited carbon and then charge the coal
(Japanese Unexamined Patent Publication (Kokai) No. 61-231088), a cylindrical hole formed with a coal hole-side outlet and a furnace wall-side outlet for blowing a gas containing oxygen to the carbon attached to the coal hole and the furnace wall on the peripheral surface. A lance for removing and burning carbon (hereinafter, referred to as Japanese Unexamined Patent Publication No.
No. 38573), a plurality of nozzles directed toward the inner wall of the coal hole, and a plurality of nozzles directed to the inner wall of the coal hole are provided around the lance hanging down in the coal hole, or any one of them, and the gas resistor is blown into the cylinder of the lance. The carbon burning removal method (Japanese Patent Laid-Open No. 6-100864) in which the resistance is changed to adjust the injection angle of the blown gas, a truck moving on a coke oven, air for the vicinity of the coal hole in the carbonization chamber. Or an attached carbon removal device provided with a high-pressure jet nozzle of oxygen-added air, and a lance provided with a low-pressure jet nozzle of air or oxygen-added air for the central part of the carbonization chamber (Japanese Patent No. 2561787) is proposed. Have been.
【0006】[0006]
【発明が解決しようとする課題】上記特開昭61-231088
号公報、特開平7-138573号公報、特開平6-100864号公報
に開示の方法は、いずれも付着カーボンを燃焼させて除
去する方法であり、固く付着したカーボンを除去するの
に時間を要すること、また、この装置を移動させる台車
が必要で、設備費の増大、操作の複雑化を招くこととな
る。さらに、炭化室内に導入された気体の排出は、主に
上昇管の天蓋開放によって放出するため、環境上の問題
がある。SUMMARY OF THE INVENTION The above-mentioned Japanese Patent Application Laid-Open No. 61-231088
JP, JP-A-7-138573 and JP-A-6-100864 are all methods for burning and removing adhered carbon, and it takes time to remove firmly attached carbon. In addition, a trolley for moving the device is required, which leads to an increase in equipment cost and complicated operation. Further, the gas introduced into the carbonization chamber is discharged mainly when the canopy of the riser is opened, which causes environmental problems.
【0007】また、特許第2561787号公報に開示の装置は、
装炭孔内壁に付着したカーボンに向けて高圧噴出ノズル
より高圧気体を噴射し、付着カーボンを吹き飛ばして除
去するため、短時間で除去できる。しかし、この装置
は、高圧噴出ノズル、低圧噴出ノズルを具備するランス
ならびに装炭孔蓋取機を台車に設置する必要があり、設
備費の増大を招くばかりでなく、石炭の装入作業時にコ
ークス排出後の炭化室のカーボン除去作業を行うため、
操作の複雑化を招くこととなる。また、炭化室内に導入
された気体の排出は、主に上昇管の天蓋開放によって放
出するため、環境上の問題がある。[0007] Further, the device disclosed in Japanese Patent No. 2561787
Since high-pressure gas is injected from the high-pressure jet nozzle toward the carbon adhering to the inner wall of the coal charging hole to blow off and remove the adhering carbon, the carbon can be removed in a short time. However, this apparatus requires the installation of a lance having a high-pressure jet nozzle and a low-pressure jet nozzle and a coal-excavation-hole-removing machine on the bogie, which not only increases the equipment cost but also increases the cost of coke during charging of coal. In order to remove carbon from the carbonization chamber after discharge,
The operation becomes complicated. Further, the gas introduced into the carbonization chamber is discharged mainly when the canopy of the riser is opened, and thus has an environmental problem.
【0008】本発明の目的は、上記従来技術の問題点を解消
し、装炭孔内壁に付着したカーボンを装炭作業に付随し
て短時間で除去できるとともに、導入した気体をそのま
ま炉外に放出することのないコークス炉装炭孔掃除装置
を提供することにある。[0008] An object of the present invention is to solve the above-mentioned problems of the prior art, to remove carbon adhering to the inner wall of a coal-charging hole in a short time accompanying the coal-charging operation, and to remove the introduced gas to the outside of the furnace as it is. An object of the present invention is to provide a coke oven coal hole cleaning apparatus that does not discharge.
【0009】[0009]
【課題を解決するための手段】本発明のコークス炉装炭
孔掃除装置は、装炭車の各給炭スリーブと共に昇降する
集塵用フードの内側に、給炭スリーブと装炭孔の内壁と
の隙間に下向きでかつ装炭孔周面に向けて、ノズルとデ
ィフューザからなるエゼクタを複数個設置する。そし
て、各エゼクタのノズルと圧縮気体供給設備を圧縮気体
供給配管により連結してなる。また、この複数個設置す
るエゼクタは、等間隔で設置するのが望ましい。SUMMARY OF THE INVENTION A coke oven coal hole cleaning apparatus according to the present invention comprises a dust collecting hood which rises and falls together with each coal feeding sleeve of a coal loading car. A plurality of ejectors each composed of a nozzle and a diffuser are installed facing downward in the gap and toward the periphery of the coal hole. The nozzle of each ejector and the compressed gas supply equipment are connected by a compressed gas supply pipe. Further, it is desirable that the plurality of ejectors are installed at equal intervals.
【0010】[0010]
【発明の実施の形態】本発明のコークス炉装炭孔掃除装
置による付着カーボンの除去は、装炭作業に先立ち、コ
ークスを排出した炭化室位置に装炭車を停止させ、装炭
孔の蓋を蓋取機により開放し、装炭のため給炭スリーブ
と集塵用フードを下降させ、給炭スリーブを装炭孔に接
続し、集塵用フード下端を炉上に載置して石炭装入時の
発塵防止のための集塵機による吸引が開始された時点で
行う。BEST MODE FOR CARRYING OUT THE INVENTION The removal of adhering carbon by a coke oven coal hole cleaning apparatus according to the present invention is carried out by stopping a coal carrier at a coking chamber position where coke has been discharged and closing a lid of the coal hole prior to a coal charging operation. It is opened by the lid remover, the coal feeding sleeve and the dust collecting hood are lowered for coal charging, the coal feeding sleeve is connected to the coal charging hole, and the lower end of the dust collecting hood is placed on the furnace to load coal. It is performed when suction by the dust collector for preventing dust generation at the time is started.
【0011】すなわち、集塵用フードの内側に複数個設置し
たノズルとディフューザからなるエゼクタは、給炭スリ
ーブと集塵用フードが下降すると、給炭スリーブと装炭
孔の内壁との隙間に下向きでかつ装炭孔周面に向かう。
したがって、圧縮気体供給設備から圧縮気体供給配管を
介して各エゼクタのノズルに圧縮気体を供給すると、エ
ゼクタ効果によってディフューザより吸入した空気と圧
縮気体との混合気体が、エゼクタ出口では高速旋回流と
なって装炭孔周面に向かって噴出し、装炭孔壁に付着し
たカーボンを吹き飛ばして除去する。[0011] That is, the ejector comprising a plurality of nozzles and a diffuser provided inside the dust collecting hood, when the coal feeding sleeve and the dust collecting hood are lowered, is directed downward into the gap between the coal feeding sleeve and the inner wall of the coal charging hole. And heading toward the periphery of the coal hole.
Therefore, when the compressed gas is supplied from the compressed gas supply equipment to the nozzle of each ejector via the compressed gas supply pipe, a mixed gas of the air and the compressed gas sucked from the diffuser by the ejector effect becomes a high-speed swirling flow at the ejector outlet. The coal is blown out toward the peripheral surface of the coal hole to blow off and remove the carbon attached to the wall of the coal hole.
【0012】カーボンの除去に伴い飛散するカーボン粉は、
集塵用フードに接続する吸引ダクトを介して集塵機に吸
引され、除去される。この場合、例えば、装炭孔が4個
ある場合は、そのうちの2個の装炭孔のカーボンを除去
し、残りの2個の装炭孔は圧縮気体の噴出を止め、集塵
のみに使用することもできる。また、圧縮気体の噴出
は、タイマー等で噴出時間を設定すれば良いが、通常30
秒から1分程度でカーボンは十分に除去できるため、窯
出し時間の形態を乱すことはない。[0012] The carbon powder scattered with the removal of carbon is
It is sucked and removed by the dust collector via a suction duct connected to the dust collecting hood. In this case, for example, if there are four coal-filled holes, the carbon in two of the coal-filled holes is removed, and the remaining two coal-filled holes stop blowing compressed gas and are used only for dust collection. You can also. In addition, the ejection time of the compressed gas may be set by a timer or the like.
Since carbon can be sufficiently removed in about one second to one minute, the form of the kiln discharge time is not disturbed.
【0013】圧縮気体供給設備としては、例えば、圧縮空気
を得るためのコンプレッサーと圧縮空気を貯蔵しておく
タンクからなる設備など、公知の種々の設備を用いるこ
とができる。圧縮気体としては、圧縮空気を用いるのが
一般的であるが、酸素を付加した圧縮空気を用いること
ができる。As the compressed gas supply equipment, for example, various known equipment such as an equipment including a compressor for obtaining compressed air and a tank for storing the compressed air can be used. As the compressed gas, compressed air is generally used, but compressed air to which oxygen has been added can be used.
【0014】各エゼクタのノズルに供給する圧縮気体の圧力
は、装炭孔に付着したカーボンを吹き飛ばして除去でき
ると共に、装炭孔内周面の煉瓦等に損傷を与えないこと
が重要である。このため、圧縮気体の圧力は、5〜10kg/
cm2・Gの範囲が好ましく、5kg/cm2・G未満では、カーボ
ン除去が困難で、時間がかかり、10kg/cm2・Gを超える
と、装炭孔内周面の煉瓦等を損傷させる危険性がある。[0014] It is important that the pressure of the compressed gas supplied to the nozzle of each ejector can be removed by blowing off the carbon adhering to the coal-filled hole and not to damage the bricks and the like on the inner peripheral surface of the coal-filled hole. For this reason, the pressure of the compressed gas is 5 to 10 kg /
preferably in the range of cm 2 · G, it is less than 5kg / cm 2 · G, difficulty decoking, time consuming, exceeds 10kg / cm 2 · G, damaging the brick or the like in the peripheral surface Sosumiana There is a risk.
【0015】[0015]
【実施例】実施例1 本発明のコークス炉装炭孔掃除装置の実施の一例を図1
〜図5に基づいて説明する。図1、図2に示すように、コ
ークス炉1の各炭化室の上部には、装入蓋2により閉止す
る4〜5個の装炭孔3が設けられている。コークス炉1の炉
上を炉長方向に移動する装炭車4には、炭化室内に装入
する石炭を積込む4〜5個の給炭ホッパー5が搭載されて
いる。各給炭ホッパー5の底部には、テーブルフィーダ
ー6と称する切り出し装置を備えている。テーブルフィ
ーダー6で給炭ホッパー5から切り出された石炭が落下す
る下部ホッパー7には、シリンダ8の操作により開閉する
シーパーと称するダンパ9を設けている。また、下部ホ
ッパー7には、上部シュート10と昇降する給炭スリーブ1
1を連結している。[Embodiment 1] Fig. 1 shows an embodiment of a coke oven coal hole cleaning apparatus according to the present invention.
This will be described with reference to FIG. As shown in FIGS. 1 and 2, four to five coal charging holes 3 which are closed by charging lids 2 are provided in the upper part of each coking chamber of the coke oven 1. A coal loading car 4 moving on the furnace of the coke oven 1 in the furnace length direction is equipped with 4 to 5 coal feed hoppers 5 for loading coal to be charged into the coking chamber. At the bottom of each coal feeder hopper 5, a cutting device called a table feeder 6 is provided. The lower hopper 7 on which the coal cut from the coal feeder hopper 5 falls by the table feeder 6 is provided with a damper 9 called a sealer that opens and closes by operating a cylinder 8. The lower hopper 7 has an upper chute 10 and a coal feed sleeve 1 that moves up and down.
1 is connected.
【0016】上部シュート10、給炭スリーブ11の周囲は、固
定フード12と昇降する昇降フード13からなる集塵フード
14で包囲し、装炭孔3と給炭スリーブ11との隙間から噴
出する含塵ガスは、固定フード12と昇降フード13からな
る集塵フード14で捕捉され、固定フード12に連結した吸
引ダクト15を介して図示しない集塵装置のブロワに吸引
除塵される。また、装炭車4には、各装炭孔3の装入蓋2
を開閉する蓋取装置16が備えられている。A dust collecting hood around the upper chute 10 and the coal feeding sleeve 11 is composed of a fixed hood 12 and an elevating hood 13 which moves up and down.
The dust-containing gas, which is surrounded by 14 and blows out from the gap between the coal charging hole 3 and the coal feeding sleeve 11, is captured by the dust collecting hood 14 including the fixed hood 12 and the elevating hood 13, and is connected to the fixed hood 12 by the suction duct. The dust is suctioned and removed by a blower of a dust collector (not shown) via the unit 15. In addition, the loading lid 2 of each loading hole 3
A lid removing device 16 for opening and closing the cover is provided.
【0017】本発明のコークス炉装炭孔掃除装置は、各給炭
スリーブ11と集塵フード14の間に、給炭スリーブ11とと
もに昇降する昇降スリーブ21を設け、各昇降スリーブ21
の下部内周に等間隔でノズル22とディフューザ23からな
る複数個のエゼクタ24を、給炭スリーブ11と装炭孔3の
内壁との隙間に下向きでかつ装炭孔3周面に向けて配置
する。各エゼクタ24は、図3、図4に示すように、例え
ば、装炭孔3の中心点に引いた線に対して40°の角度
で、かつ、炉上より250mm下の装炭孔3の壁面を目標点と
して配置する。In the coke oven coal hole cleaning apparatus of the present invention, an elevating sleeve 21 that moves up and down together with the coal feeding sleeve 11 is provided between each coal feeding sleeve 11 and the dust collecting hood 14.
A plurality of ejectors 24 each composed of a nozzle 22 and a diffuser 23 are arranged at equal intervals on the lower inner circumference of the lower side of the inner wall of the coal feeding sleeve 11 and the inner wall of the coal feeding hole 3 so as to face downward and face the peripheral surface of the coal feeding hole 3. I do. As shown in FIGS. 3 and 4, each ejector 24 has, for example, an angle of 40 ° with respect to a line drawn at the center point of the charging hole 3 and a position of the charging hole 3 250 mm below the furnace. Place the wall as the target point.
【0018】また、各エゼクタ24のノズル22には、装炭車4
に搭載した圧縮空気供給設備25から開閉弁26、供給管2
7、エアホース28、円管29、連結管30を介して圧縮空気
を供給する。各エゼクタ24のノズル22に5〜10kg/cm2・G
の圧縮空気を供給すると、ノズル22より噴出する圧縮空
気のエゼクタ効果によってディフューザ23の背面より吸
引されたコークス粉塵を含む空気Aとともに、装炭孔3周
面に向けて高速で噴出し、装炭孔3の内周面に旋回流が
形成され、装炭孔3の内周面に付着したカーボンCを吹き
飛ばして除去するように構成する。Further, the nozzle 22 of each ejector 24 has
On-off valve 26, supply pipe 2 from compressed air supply equipment 25 mounted on
7. Supply compressed air through the air hose 28, the circular pipe 29, and the connecting pipe 30. 5 ~ 10kg / cm 2・ G to nozzle 22 of each ejector 24
When compressed air is supplied, the compressed air ejected from the nozzle 22 ejects the air A containing coke dust sucked from the back of the diffuser 23 by the ejector effect of the compressed air, and is ejected at high speed toward the peripheral surface of the coal filling hole 3 to form the coal A swirling flow is formed on the inner peripheral surface of the hole 3, and the carbon C attached to the inner peripheral surface of the coal charging hole 3 is blown off and removed.
【0019】上記のように構成したことによって、コークス
炉1の炭化室からコークスを排出し、炭化室両端の炉蓋
を装着した後、当該炭化室に石炭を装入するに先立ち、
当該炭化室の装入蓋2を蓋取装置16により開放する。そ
して、当該炭化室の図示しない上昇管の天蓋を閉鎖し、
ベンドの皿弁を開放して当該炭化室と集気本管を縁継ぎ
する。しかる後、吸引ダクト15に連結した図示しない集
塵装置のブロワを起動したのち、昇降フード13を下降し
て集塵フード14内からの集塵を開始する。[0019] With the above-described configuration, coke is discharged from the coking chamber of the coke oven 1, and after the furnace lids at both ends of the coking chamber are mounted, prior to charging coal into the coking chamber,
The charging lid 2 of the carbonization chamber is opened by the lid removing device 16. Then, the canopy of the riser (not shown) of the carbonization chamber is closed,
Open the bend plate valve to connect the carbonization chamber and the air collecting main pipe. Thereafter, after activating a blower of a dust collector (not shown) connected to the suction duct 15, the elevating hood 13 is lowered to start collecting dust from inside the dust collecting hood 14.
【0020】次に給炭スリーブ11と昇降スリーブ21を図示し
ない昇降機構を操作して下降させたのち、開閉弁26を開
放して供給管27、エアホース28、円管29、連結管30を介
して各エゼクタ24のノズル22に圧力5〜10kg/cm2・Gの圧
縮空気を供給する。各エゼクタ24は、ノズル22より噴出
する圧縮空気のエゼクタ効果によってディフューザ23の
背面より吸引したコークス粉塵を含む空気Aとともに、
装炭孔3周面に向けて高速で噴出し、装炭孔3の内周面に
旋回流を形成して装炭孔3の内周面に付着したカーボンC
を吹き飛ばして除去する。この場合、ディフューザ23の
背面より吸引した空気Aには、コークス粉塵が多量に含
まれているので、カーボンCを効率的に除去することが
できる。この圧縮空気の噴射は、30秒〜1分程度で十分
に装炭孔3の内周面に付着したカーボンCを除去できる。Next, after lowering the coal feeding sleeve 11 and the elevating sleeve 21 by operating an elevating mechanism (not shown), the on-off valve 26 is opened and the supply pipe 27, the air hose 28, the circular pipe 29, and the connecting pipe 30 are connected. Compressed air at a pressure of 5 to 10 kg / cm 2 · G is supplied to the nozzle 22 of each ejector 24. Each ejector 24, along with air A containing coke dust sucked from the back of the diffuser 23 by the ejector effect of the compressed air ejected from the nozzle 22,
The carbon C spouted at high speed toward the periphery of the coal hole 3 and formed a swirling flow on the inner surface of the coal hole 3 and attached to the inner surface of the coal hole 3.
To remove. In this case, since the air A sucked from the back surface of the diffuser 23 contains a large amount of coke dust, the carbon C can be efficiently removed. The injection of the compressed air can sufficiently remove the carbon C attached to the inner peripheral surface of the coal charging hole 3 in about 30 seconds to 1 minute.
【0021】この際、吹き飛ばして除去されたカーボン粉
は、装炭孔3と給炭スリーブ11の隙間から熱空気ととも
に上昇するが、集塵フード14で捕捉され、吸引ダクト15
を介して図示しない集塵装置のブロワにより吸引され、
除塵される。30秒〜1分が経過すると、開閉弁26を閉止
して各エゼクタ24のノズル22への圧縮空気の供給を停止
し、装炭孔3のカーボン除去作業を完了する。At this time, the carbon powder blown off and removed rises together with hot air from the gap between the coal charging hole 3 and the coal feeding sleeve 11, but is captured by the dust collecting hood 14, and is sucked by the suction duct 15
Is suctioned by a blower of a dust collector (not shown) through
Dust is removed. When 30 seconds to 1 minute have elapsed, the on-off valve 26 is closed, the supply of compressed air to the nozzles 22 of each ejector 24 is stopped, and the carbon removal operation of the coal hole 3 is completed.
【0022】しかるのち、テーブルフィーダー6を作動して
給炭ホッパー5から石炭の切り出しを開始すると共に、
シリンダ8を操作してダンパ9を開放し、下部ホッパー
7、上部シュート10、給炭スリーブ11を介して装炭孔3か
ら石炭を炭化室に装入する。この石炭の装入の間、装入
する石炭と置換される熱空気、炉壁と接して加熱されて
発生するガスは、上昇管のベンドへの高圧安水の噴射に
よるエゼクタ効果によって集気本管に吸引されるととも
に、装炭孔3と給炭スリーブ11の隙間から上昇し、集塵
フード14で捕捉され、吸引ダクト15を介して図示しない
集塵装置のブロワにより吸引され、除塵される。Thereafter, the table feeder 6 is operated to start cutting coal from the coal feeder hopper 5, and
Open the damper 9 by operating the cylinder 8 and move the lower hopper
7. Coal is charged into the carbonization chamber from the coal charging hole 3 via the upper chute 10 and the coal feeding sleeve 11. During the charging of the coal, hot air displaced by the charged coal and gas generated by being heated in contact with the furnace wall are collected by the ejector effect due to the injection of high-pressure, low-temperature water into the bend of the riser. While being sucked by the pipe, it rises from the gap between the coal charging hole 3 and the coal feeding sleeve 11, is caught by the dust collecting hood 14, is sucked by the blower of the dust collecting device (not shown) through the suction duct 15, and is dust-removed. .
【0023】石炭の装入が完了すれば、テーブルフィーダー
6を停止し、シリンダ8を操作してダンパ9を閉止したの
ち、給炭スリーブ11と昇降スリーブ21を上昇させたの
ち、昇降フード13を上昇させる。そして、蓋取装置16を
操作して装炭孔3に装入蓋2を装着し、当該炭化室への装
炭作業を完了する。When the charging of coal is completed, the table feeder
After stopping the cylinder 6, operating the cylinder 8 to close the damper 9, the coal feeding sleeve 11 and the lifting sleeve 21 are raised, and then the lifting hood 13 is raised. Then, the lid removing device 16 is operated to mount the charging lid 2 on the coal charging hole 3, and the coal charging operation for the carbonization chamber is completed.
【0024】なお、上記実施例においては、当該炭化室のす
べての装炭孔3の付着カーボンを、各エゼクタ24のノズ
ル22に圧縮空気を供給し、一気に除去する場合について
説明した。しかし、装炭孔3が4個の場合、2個の装炭孔3
の付着カーボンを当該装炭孔3の各エゼクタ24のノズル2
2に圧縮空気を供給して除去し、残りの2個の装炭孔3に
装着した集塵フード14により熱空気とガスを捕捉し、吸
引ダクト15を介して図示しない集塵装置のブロワにより
吸引して除塵することもできる。これによって、装炭孔
3の付着カーボン除去時の飛散粉塵の集塵効率を高める
ことができる。In the above-described embodiment, a case has been described in which compressed air is supplied to the nozzles 22 of the respective ejectors 24 to supply compressed air to the nozzles 22 of the respective ejectors 24 at a stretch to remove the carbon adhered to all the coal charging holes 3 in the carbonization chamber. However, if there are four coal holes 3, two coal holes 3
Of the ejector 24 of the coal loading hole 3
The compressed air is supplied to 2 and removed, the hot air and gas are captured by the dust collecting hood 14 attached to the remaining two coal charging holes 3, and the dust is collected by the blower of a dust collecting device (not shown) through the suction duct 15. Suction can be used to remove dust. By this, coal hole
(3) The dust collection efficiency of the scattered dust when removing the adhered carbon can be improved.
【0025】実施例2 炉高7125mm、炉幅460mm、炉長16500mm、有効容積48.6m3
のコークス炉において、4個の各給炭スリーブに前記図3
に示すようにそれぞれ4個のエゼクタを、等間隔で装炭
孔の中心点に引いた線に対して40°の角度で、かつ、炉
上より250mm下の装炭孔の壁面を目標点として配置し、
各エゼクタのノズルに圧縮空気圧力5〜10kg/cm2・G、圧
縮空気2m3/minで圧縮空気を供給し、ノズルより噴出す
る圧縮空気のエゼクタ効果によってディフューザの背面
より吸引したコークス粉塵を含む20m3/minの空気ととも
に、装炭孔周面に向けて20m/secの高速で噴出し、装炭
孔の内周面に旋回流を形成して付着したカーボンを吹き
飛ばして除去し、カーボン除去に要した時間の平均値を
求めた。その結果、カーボン除去に要した時間の平均値
は、1分で装炭作業への影響はなかった。Example 2 Furnace height 7125 mm, furnace width 460 mm, furnace length 16500 mm, effective volume 48.6 m 3
In the coke oven shown in FIG.
As shown in the figure, four ejectors were set at a 40 ° angle with respect to the line drawn at equal intervals to the center point of the coal hole, and the target point was the wall surface of the coal hole 250 mm below the furnace. Place,
Compressed air is supplied to the nozzle of each ejector at a compressed air pressure of 5 to 10 kg / cm 2 · G and compressed air of 2 m 3 / min, and includes coke dust sucked from the back of the diffuser by the ejector effect of the compressed air ejected from the nozzle. Along with the air of 20m 3 / min, it is jetted at a high speed of 20m / sec toward the peripheral surface of the coal hole, forming a swirling flow on the inner peripheral surface of the coal hole and blowing off the attached carbon to remove the carbon. The average value of the time required for was calculated. As a result, the average value of the time required for carbon removal was 1 minute, and there was no effect on the coal filling operation.
【0026】比較のため、石炭の乾留が完了して火落ちした
炭化室の1個の装炭孔の蓋を開放し、上昇管の天蓋を開
放してドラフトにより開放した装炭孔から空気を吸入
し、装炭孔の内周面に付着したカーボンを焼き落として
除去した。この場合のカーボン除去に要した時間の平均
値を求めた。その結果、カーボン除去に要した時間の平
均値は、30分で装炭作業に支障を生じた。For the sake of comparison, the lid of one of the coal-filling holes of the carbonization chamber where the carbonization of the coal was completed and the fire burned down was opened, the canopy of the riser was opened, and air was released from the coal-filling hole opened by the draft. After inhalation, carbon attached to the inner peripheral surface of the coal hole was burned off and removed. The average value of the time required for carbon removal in this case was determined. As a result, the average time required for carbon removal was 30 minutes, which hindered coal-charging work.
【0027】[0027]
【発明の効果】本発明のコークス炉装炭孔掃除装置は、
装炭車の装炭孔集塵用フードの内側に圧縮空気供給装置
に接続するノズルとディフューザからなるエゼクタを設
けたから、台車等の駆動設備を必要とせず、設備費用も
廉価である。また、装炭車から炭化室に石炭を装入する
に先立ち、装炭車の装炭孔集塵用フードの内側に設けた
各エゼクタのノズルに圧縮気体を供給し、ディフューザ
から吸入した空気と共に装炭孔内周面に高速旋回流とし
て噴出させ、付着カーボンを吹き飛ばして除去するか
ら、極めて短時間で除去でき、装炭作業に支障を与える
ことはない。According to the present invention, a coke oven coal hole cleaning apparatus is
Since an ejector composed of a nozzle and a diffuser connected to the compressed air supply device is provided inside the coal-collecting hole dust collecting hood of the coal-equipped truck, no driving equipment such as a bogie is required, and the equipment cost is low. Prior to charging coal into the carbonization chamber from the coal-equipped vehicle, compressed gas is supplied to the nozzles of each ejector provided inside the coal-exhaust hole dust-collecting hood of the coal-equipped vehicle, and the coal is charged together with the air sucked from the diffuser. Since it is ejected as a high-speed swirling flow on the inner peripheral surface of the hole and the attached carbon is blown off and removed, it can be removed in a very short time, and there is no hindrance to the coal loading operation.
【0028】本発明のコークス炉装炭孔掃除装置は、カーボ
ン除去時に装炭孔から噴出する含塵ガスは、装炭孔集塵
用フードで捕捉され、吸引ダクトを介して集塵装置に吸
引されて除塵されるから、環境汚染の問題を解決でき
る。また、従来の危険を伴う人手作業を解消できる。In the coke oven coal hole cleaning apparatus of the present invention, dust-containing gas ejected from the coal hole during carbon removal is caught by the coal hole dust collecting hood and sucked into the dust collector via the suction duct. Since the dust is removed, the problem of environmental pollution can be solved. In addition, the conventional manual operation involving danger can be eliminated.
【図1】本発明のコークス炉装炭孔掃除装置の実施の一
例を示す一部断面図である。FIG. 1 is a partial cross-sectional view showing an embodiment of a coke oven coal hole cleaning apparatus of the present invention.
【図2】本発明のコークス炉装炭孔掃除装置の実施の一
例を示す要部拡大断面図である。FIG. 2 is an enlarged sectional view of a main part showing an embodiment of a coke oven coal hole cleaning apparatus of the present invention.
【図3】ノズルとディフューザからなるエゼクタを装炭
孔に4個設置する場合の説明図である。FIG. 3 is an explanatory diagram in a case where four ejectors each including a nozzle and a diffuser are installed in a coal loading hole.
【図4】ノズルとディフューザからなるエゼクタを装炭
孔に3個設置する場合の説明図である。FIG. 4 is an explanatory diagram in a case where three ejectors each including a nozzle and a diffuser are installed in a coal hole.
【図5】ノズルとディフューザからなるエゼクタから噴
出する高速空気流によるカーボン除去の状況説明図であ
る。FIG. 5 is an explanatory diagram of a state of carbon removal by a high-speed air flow ejected from an ejector including a nozzle and a diffuser.
1 コークス炉 2 装入蓋 3 装炭孔 4 装炭車 5 給炭ホッパー 6 テーブルフィーダー 7 下部ホッパー 8 シリンダ 9 ダンパ 10 上部シュート 11 給炭スリーブ 12 固定フード 13 昇降フード 14 集塵フード 15 吸引ダクト 16 蓋取装置 21 昇降スリーブ 22 ノズル 23 ディフューザ 24 エゼクタ 25 圧縮空気供給設備 26 開閉弁 27 供給管 28 エアホース 29 円管 30 連結管 1 Coke oven 2 Charging lid 3 Charging hole 4 Charging truck 5 Charging hopper 6 Table feeder 7 Lower hopper 8 Cylinder 9 Damper 10 Upper chute 11 Charging sleeve 12 Fixed hood 13 Lifting hood 14 Dust collecting hood 15 Suction duct 16 Lid Take-up device 21 Lifting sleeve 22 Nozzle 23 Diffuser 24 Ejector 25 Compressed air supply equipment 26 On-off valve 27 Supply pipe 28 Air hose 29 Circular pipe 30 Connecting pipe
Claims (2)
炭孔に付着したカーボンを除去する装炭孔掃除装置であ
って、装炭車の装炭孔集塵用フードの内側に、給炭スリ
ーブと装炭孔の内壁との隙間に下向きでかつ装炭孔周面
に向けて、ノズルとディフューザからなるエゼクタを複
数個設置し、各エゼクタのノズルと圧縮気体供給設備を
圧縮気体供給配管により連結してなるコークス炉装炭孔
掃除装置。Claims 1. A coal hole cleaning apparatus for removing carbon adhering to a coal charging hole for charging coal into a coking chamber of a coke oven, comprising: A plurality of ejectors each consisting of a nozzle and a diffuser are installed facing down the gap between the coal sleeve and the inner wall of the coal hole and facing the peripheral surface of the coal hole, and the nozzle of each ejector and the compressed gas supply equipment are compressed gas supply piping. Coke oven coal hole cleaning equipment connected by
複数個を、等間隔で配置したことを特徴とする請求項1
記載のコークス炉装炭孔掃除装置。2. The device according to claim 1, wherein a plurality of ejectors each including a nozzle and a diffuser are arranged at equal intervals.
The coke oven coal hole cleaning device as described in the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11172537A JP2001003061A (en) | 1999-06-18 | 1999-06-18 | Apparatus for cleaning coal charging opening of coke oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11172537A JP2001003061A (en) | 1999-06-18 | 1999-06-18 | Apparatus for cleaning coal charging opening of coke oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001003061A true JP2001003061A (en) | 2001-01-09 |
Family
ID=15943745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11172537A Pending JP2001003061A (en) | 1999-06-18 | 1999-06-18 | Apparatus for cleaning coal charging opening of coke oven |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001003061A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101136416B1 (en) * | 2009-02-27 | 2012-04-18 | 주식회사 포스코 | Apparatus for supplying coking coal |
| KR101329721B1 (en) * | 2011-12-26 | 2013-11-14 | 주식회사 포스코 | Charging apparatus with means for preventing back flow |
| CN108410481A (en) * | 2018-03-28 | 2018-08-17 | 宣化钢铁集团有限责任公司 | A kind of coke oven vertical flame path dredging sweeper and dredging method |
| CN109294602A (en) * | 2018-06-12 | 2019-02-01 | 大连华锐重工焦炉车辆设备有限公司 | A kind of environment-friendly type coal loading, smoke conduction integrated vehicle and its operating method |
| CN110184078A (en) * | 2019-07-12 | 2019-08-30 | 大连华锐重工焦炉车辆设备有限公司 | Dust collection for charging system and its operating procedure applied to tamping coal-charging coke pusher |
| CN111961482A (en) * | 2020-09-10 | 2020-11-20 | 大连重工环保工程有限公司 | Coal box smoke dust collecting device of tamping coke oven coal charging car |
-
1999
- 1999-06-18 JP JP11172537A patent/JP2001003061A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101136416B1 (en) * | 2009-02-27 | 2012-04-18 | 주식회사 포스코 | Apparatus for supplying coking coal |
| KR101329721B1 (en) * | 2011-12-26 | 2013-11-14 | 주식회사 포스코 | Charging apparatus with means for preventing back flow |
| CN108410481A (en) * | 2018-03-28 | 2018-08-17 | 宣化钢铁集团有限责任公司 | A kind of coke oven vertical flame path dredging sweeper and dredging method |
| CN108410481B (en) * | 2018-03-28 | 2024-03-22 | 宣化钢铁集团有限责任公司 | Coke oven vertical fire channel dredging cleaner and dredging method |
| CN109294602A (en) * | 2018-06-12 | 2019-02-01 | 大连华锐重工焦炉车辆设备有限公司 | A kind of environment-friendly type coal loading, smoke conduction integrated vehicle and its operating method |
| CN109294602B (en) * | 2018-06-12 | 2023-10-20 | 大连华锐重工焦炉车辆设备有限公司 | Environment-friendly coal-charging and smoke-guiding integrated vehicle and operation method thereof |
| CN110184078A (en) * | 2019-07-12 | 2019-08-30 | 大连华锐重工焦炉车辆设备有限公司 | Dust collection for charging system and its operating procedure applied to tamping coal-charging coke pusher |
| CN110184078B (en) * | 2019-07-12 | 2024-02-02 | 大连华锐重工焦炉车辆设备有限公司 | Coal-charging dust-removing system applied to tamping coal-charging coke pusher and operation steps thereof |
| CN111961482A (en) * | 2020-09-10 | 2020-11-20 | 大连重工环保工程有限公司 | Coal box smoke dust collecting device of tamping coke oven coal charging car |
| CN111961482B (en) * | 2020-09-10 | 2024-02-06 | 大连重工环保工程有限公司 | Smoke dust collecting device for coal box of tamping coke oven coal charging car |
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