JP4910433B2 - Operation method of COG blower device - Google Patents

Operation method of COG blower device Download PDF

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JP4910433B2
JP4910433B2 JP2006068491A JP2006068491A JP4910433B2 JP 4910433 B2 JP4910433 B2 JP 4910433B2 JP 2006068491 A JP2006068491 A JP 2006068491A JP 2006068491 A JP2006068491 A JP 2006068491A JP 4910433 B2 JP4910433 B2 JP 4910433B2
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啓治 亀川
雅章 山本
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JFE Steel Corp
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Description

本発明は、コークス炉より発生したガス（以下、ＣＯＧ）を吸引して精製工程へ送るＣＯＧブロワー装置の運転方法に関する。   The present invention relates to a method of operating a COG blower apparatus that sucks gas (hereinafter, COG) generated from a coke oven and sends it to a purification process.

ＣＯＧブロワー装置は、図５に示すように胴体１内部のブロワー翼（以下、ランナー）１２を回転させてコークス炉ガス（以下、ＣＯＧ）を吸引する。ランナー１２は主モータ１４で回転する主軸１３に取り付けられている。   As shown in FIG. 5, the COG blower device sucks coke oven gas (hereinafter referred to as COG) by rotating a blower blade (hereinafter referred to as runner) 12 inside the fuselage 1. The runner 12 is attached to a main shaft 13 that is rotated by a main motor 14.

ＣＯＧは、ＣＯＧブロワー装置に吸引される前に予め、コールタールやナフタリン等の浮遊不純物を除去するが、完全には除去されず、少量がランナー１２に付着する。その結果、一定時間経過後にはランナー１２の回転バランスが崩れて、ＣＯＧブロワー装置に振動が生じて、装置寿命も短くなる。   The COG removes floating impurities such as coal tar and naphthalene in advance before being sucked into the COG blower device, but is not completely removed, and a small amount adheres to the runner 12. As a result, after a certain period of time, the rotation balance of the runner 12 is lost, the COG blower device is vibrated, and the life of the device is shortened.

特許文献１は、コークス炉ガス搬送ブロワーへのタール等の付着防止方法に関し、ブロワーの吸引管内に、水やガス液などの、ＣＯＧ洗浄液を噴出する噴霧ノズルを取り付け、吸引管内を通過するＣＯＧに連続噴霧することが記載されている。
特開昭５７−１５８７９号公報 Patent Document 1 relates to a method for preventing tar and the like from adhering to a coke oven gas transfer blower. A spray nozzle for ejecting a COG cleaning liquid such as water or a gas liquid is attached to the blower suction pipe, and the COG passing through the suction pipe is attached to the blower suction pipe. Continuous spraying is described.
JP-A-57-15879

ところで、ＣＯＧブロワーはコークス炉で発生するＣＯＧを吸引し、製鉄所内の加熱炉等にＣＯＧを供給する重要設備のため、複数台が配置され、保守点検されながら交互に運転される。予備機であってもＣＯＧの一部がその内部を通過するため、ランナー１２に付着し、定常運転に供されたとき、ランナー１２の回転バランスが崩れる場合が生じていた。   By the way, the COG blower sucks the COG generated in the coke oven and is an important facility for supplying COG to a heating furnace or the like in the ironworks. Even if it is a spare machine, since a part of COG passes through the inside, it adheres to the runner 12 and when it is subjected to steady operation, the run balance of the runner 12 may be lost.

そこで、本発明は、上記課題を解決するため、予備機の状態から、定常運転に供されてもランナー１２へのコールタールやナフタリン等の付着が原因の異常振動を防止するＣＯＧブロワー装置の運転方法を提供することを目的とする。   Therefore, in order to solve the above problems, the present invention operates a COG blower device that prevents abnormal vibration caused by adhesion of coal tar, naphthalene, etc. to the runner 12 even if it is subjected to steady operation from the state of a spare machine. It aims to provide a method.

本発明の課題は以下の手段により達成可能である。
１．ランナーとランナーを取り付けた主軸と、前記主軸を回転させる駆動機構を備え、前記駆動機構は、前記主軸の一方の端部側に取り付けられた主電動機と、他方の端部側に取り付けられた予備電動機と、前記主軸と前記予備電動機を随時断続可能なクラッチ機構を備えたＣＯＧブロワー装置の運転方法であって、定常運転時は、前記クラッチ機構を開放して前記主電動機で前記主軸を回転させ、予備運転時は前記クラッチ機構を接続し、前記予備電動機で前記主軸を回転させ、前記主電動機は停止させることを特徴とするＣＯＧブロワー装置の運転方法において、前記クラッチ機構は、空気シリンダーと前記空気シリンダのシリンダ軸に取り付けられ、前記クラッチ機構の断続を行うレバー体と前記空気シリンダーを駆動するエアの供給回路と、前記供給回路を断続する電磁ソレノイドを備え、
定常運転から予備運転に移る際は、主電動機を停止後、前記レバー体を手動操作して前記クラッチ機構を接続した後、前記電磁ソレノイドを励磁して前記エアの供給回路にエアを供給し、前記空気シリンダのシリンダ軸の位置を固定し、
予備運転から定常運転に移る際は、予備電動機を停止後、前記電磁ソレノイドを非励磁として、前記エアの供給回路からエアを抜き、前記クラッチ機構を開放することを特徴とするＣＯＧブロワー装置の運転方法。
２．予備運転から定常運転に移る際において、予備電動機を停止後、前記電磁ソレノイドを遠隔操作により非励磁とすることを特徴とする１記載のＣＯＧブロワー装置の運転方法。 The object of the present invention can be achieved by the following means.
1. A main shaft attached to the runner, and a driving mechanism for rotating the main shaft, the driving mechanism including a main motor attached to one end side of the main shaft and a spare attached to the other end side. A method of operating a COG blower apparatus including a motor and a clutch mechanism capable of intermittently connecting the main shaft and the spare motor, wherein the clutch mechanism is opened and the main motor is rotated by the main motor during steady operation. In the operation method of the COG blower apparatus, the clutch mechanism is connected during the preliminary operation, the main shaft is rotated by the preliminary motor, and the main motor is stopped. A lever body that is attached to a cylinder shaft of an air cylinder and that interrupts the clutch mechanism and an air supply circuit that drives the air cylinder , An electromagnetic solenoid intermittently the supply circuit,
When shifting from steady operation to preliminary operation, after stopping the main motor, manually operating the lever body and connecting the clutch mechanism, then exciting the electromagnetic solenoid to supply air to the air supply circuit, Fixing the position of the cylinder axis of the air cylinder;
When shifting from the preliminary operation to the steady operation, after stopping the preliminary motor, the electromagnetic solenoid is de-excited, the air is extracted from the air supply circuit, and the clutch mechanism is opened. Method.
2. 2. The method of operating a COG blower apparatus according to 1, wherein when moving from the preliminary operation to the steady operation, the electromagnetic motor is de-energized by remote control after stopping the preliminary motor.

本発明によれば、以下の作用効果が得られ、産業上、極めて有用である。
１．予備機として待機状態にあっても、ＣＯＧブロワー装置を低速回転させるので、ランナーにタール等が均一に付着し、定常運転に移行した際、ランナーの振動を防止することが可能である。
２．予備運転から定常運転に移る際のクラッチの切替えは空気シリンダを、ＣＯＧブロワー装置から離れている制御事務所にいる操作員が遠隔操作するので、ＣＯＧブロワー装置本体に駆けつけるまでの時間が不要となり、Ｃガス放散等の重大事故が防止できる。 According to the present invention, the following effects can be obtained, which is extremely useful industrially.
1. Even in the standby state as a spare machine, the COG blower device is rotated at a low speed, so that tars and the like are uniformly attached to the runner, and the runner can be prevented from vibrating when shifting to a steady operation.
2. When switching from the preliminary operation to the steady operation, the air cylinder is remotely operated by an operator at a control office away from the COG blower device, so that it takes no time to run to the COG blower device body. Serious accidents such as C gas emission can be prevented.

本発明は、ＣＯＧブロワー装置のランナーを予備運転でも低速回転させ、予備運転から定常運転へのクラッチ切替えは自動、定常運転から予備運転へのクラッチ切替えは手動で行うことを特徴とする。   The present invention is characterized in that the runner of the COG blower device is rotated at a low speed even in the preliminary operation, the clutch switching from the preliminary operation to the steady operation is performed automatically, and the clutch switching from the steady operation to the preliminary operation is performed manually.

図１は、本発明を適用するＣＯＧブロワー装置の一例を示し、図において１はＣＯＧブロワー装置本体、２は、予備機として低速運転させるためのターニングモータ、３はレバー体、４はターニングモータ２と本体１を連結するクラッチ機構で、ターニングモータ側のクラッチ歯車、５は本体側のクラッチ歯車、１４は主電動機を示す。   FIG. 1 shows an example of a COG blower apparatus to which the present invention is applied. In FIG. And a clutch gear for connecting the main body 1, a clutch gear on the turning motor side, 5 a clutch gear on the main body side, and 14 a main motor.

本発明に係るブロワー運転方法では、定常運転時は、レバー本体３、クラッチ歯車４、５がその一部を構成するクラッチ機構においてクラッチ歯車４、５の噛合せを開放して主電動機１４でライナー１２の主軸１３（図１では省略）を高速回転させる。   In the blower operation method according to the present invention, during the steady operation, the clutch gears 4 and 5 are disengaged in the clutch mechanism in which the lever main body 3 and the clutch gears 4 and 5 constitute a part thereof, and the main motor 14 performs the liner operation. Twelve spindles 13 (not shown in FIG. 1) are rotated at high speed.

予備機待機運転（低速運転）時は、クラッチ歯車４、５を噛合せて前記クラッチ機構を接続し、ターニングモータ２で前記主軸を低速回転させる。前記クラッチ機構の接続は、主電動機１４を停止させた状態で行う。   During standby operation (low speed operation), the clutch gears 4 and 5 are engaged to connect the clutch mechanism, and the turning motor 2 rotates the main shaft at a low speed. The clutch mechanism is connected with the main motor 14 stopped.

図２はクラッチ機構の接続状態、図３はクラッチ機構の開放状態を示し、クラッチ歯車４、５の噛合せはレバー体３、空気シリンダ６およびリンク部材７からなるリンク機構によって制御される。   2 shows a connected state of the clutch mechanism, and FIG. 3 shows an opened state of the clutch mechanism. The engagement of the clutch gears 4 and 5 is controlled by a link mechanism including the lever body 3, the air cylinder 6 and the link member 7.

クラッチ歯車４，５を噛合せる場合は、レバー体３を上方に倒して、その力点側端部に取り付けたリンク部材７を回動させてクラッチ歯車４をブロワー装置本体１方向に突出させる（図２）。   When the clutch gears 4 and 5 are engaged, the lever body 3 is tilted upward and the link member 7 attached to the end of the force point side is rotated to project the clutch gear 4 toward the blower device main body 1 (see FIG. 2).

この際、ターニングモータの端部の軸を手動で回転させるなどして、クラッチ歯車４、５の歯面の位置合わせを事前に行っておく。   At this time, the tooth surfaces of the clutch gears 4 and 5 are aligned in advance by manually rotating the shaft at the end of the turning motor.

一方、クラッチ歯車４，５の噛合せを開放する場合は、レバー体３を下方に倒して、その力点側端部に取り付けたリンク部材７を回動させてクラッチ歯車４をターニングモータ２側に引き寄せる（図３）。レバー体３は手動または空気シリンダを遠隔操作して作動させることが可能である。   On the other hand, when releasing the engagement of the clutch gears 4 and 5, the lever body 3 is tilted downward, the link member 7 attached to the end of the force point side is rotated, and the clutch gear 4 is moved to the turning motor 2 side. Pull (Figure 3). The lever body 3 can be operated manually or by remotely operating an air cylinder.

図４は、空気シリンダー６に供給される空気用配管系の構成を説明する図で、図において、６ａは空気シリンダ６のシリンダ軸、１５はピストン、８、９、１０はバルブ、１１は電磁弁（シングルソレノイド）、１６はシリンダー速度調整弁を示す。図４（ａ）はＣＯＧブロワー装置１が予備運転の状態（電磁弁入り状態）を示し、図４（ｂ）は定常運転の状態（電磁弁切り状態）を示す。   FIG. 4 is a diagram for explaining the configuration of the air piping system supplied to the air cylinder 6. In the figure, 6a is a cylinder shaft of the air cylinder 6, 15 is a piston, 8, 9, 10 are valves, and 11 is an electromagnetic. A valve (single solenoid) 16 indicates a cylinder speed adjusting valve. FIG. 4A shows a state in which the COG blower device 1 is in a preliminary operation (a state with an electromagnetic valve), and FIG. 4B shows a state in which the COG blower device 1 is in a steady operation (a state in which the electromagnetic valve is cut off).

以下、本発明に係るブロワー運転方法について具体的に説明する。まず、ＣＯＧブロワー装置１を定常運転から予備運転とする場合は、手順１．ＣＯＧブロワー装置の運転を停止後、ランナー１２の惰性回転が完全に停止したことを確認する。   Hereinafter, the blower operation method according to the present invention will be specifically described. First, when changing the COG blower device 1 from the steady operation to the preliminary operation, the procedure 1. After stopping the operation of the COG blower device, it is confirmed that the inertial rotation of the runner 12 is completely stopped.

手順２．図４（ｂ）に示した空気用配管系においてバルブ８，９を全閉、バルブ１０を全開とし、空気シリンダー６のピストン１５の上下の負荷されている空気圧を同圧とする。手順３．ターニングモータ２のモータ軸に手動ハンドル（図示しない）を取り付け、クラッチ歯車４、５の歯が噛み合うように、クラッチ歯車４を回転させる。   Procedure 2. In the air piping system shown in FIG. 4B, the valves 8 and 9 are fully closed, the valve 10 is fully opened, and the air pressure applied to the upper and lower sides of the piston 15 of the air cylinder 6 is the same pressure. Procedure 3. A manual handle (not shown) is attached to the motor shaft of the turning motor 2, and the clutch gear 4 is rotated so that the teeth of the clutch gears 4 and 5 are engaged.

手順４．レバー体３を手動で押し上げ、クラッチ歯車４，５を噛合せる。手順５．クラッチ歯車４，５が噛合せた状態にあることを検出するリミットスイッチ（図示しない）を取り付けておき、リミットスイッチＯＮ後、タイマーを作動させ、自動で電磁弁１１を励磁（ＯＮ）させるようにする（図４（ａ）の状態）。手順６．次にシリンダ軸６ａの位置を固定するため、バルブ８，９を全開、バルブ１０を全閉とし、空気シリンダー６に空気を供給する。手順７．ターニングモータ２を起動して低速回転を開始し、予備運転とする。   Procedure 4. The lever body 3 is manually pushed up to engage the clutch gears 4 and 5. Procedure 5. A limit switch (not shown) for detecting that the clutch gears 4 and 5 are engaged is attached, and after the limit switch is turned on, a timer is operated to automatically excite the solenoid valve 11 (ON). (State shown in FIG. 4A). Procedure 6. Next, in order to fix the position of the cylinder shaft 6 a, the valves 8 and 9 are fully opened, the valve 10 is fully closed, and air is supplied to the air cylinder 6. Step 7. The turning motor 2 is activated to start low-speed rotation, and a preliminary operation is performed.

予備運転から定常運転とする場合は、手順１．ターニングモータ２の運転を停止する。手順２．制御信号により電磁弁１１の励磁を切り（図４（ｂ）の状態）、空気シリンダー６に負荷されている空気圧を切替える。   To change from preliminary operation to steady operation, follow the procedure 1. The operation of the turning motor 2 is stopped. Procedure 2. The excitation of the solenoid valve 11 is turned off by the control signal (the state of FIG. 4B), and the air pressure loaded on the air cylinder 6 is switched.

手順３．次に、シリンダー軸６ａを下降させ、クラッチ歯車４，５の噛合せを解消する。この際、クラッチ歯車４，５の歯面を損傷しないように、タイマーカウント（図示しない）を設定し、ターニングモータ２の回転が完全停止した後、空気圧を負荷する。   Procedure 3. Next, the cylinder shaft 6a is lowered to cancel the engagement of the clutch gears 4 and 5. At this time, a timer count (not shown) is set so that the tooth surfaces of the clutch gears 4 and 5 are not damaged, and the air pressure is applied after the rotation of the turning motor 2 is completely stopped.

手順４．クラッチ離脱位置検出のリミットスイッチがＯＮであることを確認する。手順５．定常運転においてクラッチ歯車４、５が噛み合わないように、安全のため、バルブ８，９を全閉、バルブ１０を全開とする。手順６．主電動機１４を稼動させる。   Procedure 4. Check that the limit switch for detecting the clutch disengagement position is ON. Procedure 5. For safety, the valves 8 and 9 are fully closed and the valve 10 is fully opened so that the clutch gears 4 and 5 do not mesh with each other in steady operation. Procedure 6. The main motor 14 is operated.

尚、空気シリンダ６の制御信号は、コークス炉の制御事務所などで、操作員がコークス炉の稼動状態に応じて適宜制御装置を操作して発信する。緊急時に操作員がＣＯＧブロワー装置まで駆けつけるまでの時間が不要となり、Ｃガス放散等の重大事故が防止可能となる。   The control signal for the air cylinder 6 is transmitted by an operator who appropriately operates the control device according to the operating state of the coke oven at a coke oven control office or the like. In the event of an emergency, the time until the operator rushes to the COG blower device becomes unnecessary, and serious accidents such as C gas emission can be prevented.

本発明を適用するＣＯＧブロワー装置の一例を示す模式図。The schematic diagram which shows an example of the COG blower apparatus to which this invention is applied. 図１に示したＣＯＧブロワー装置のターニングモータ周辺の機構を示す模式図（クラッチ噛合せ時）。The schematic diagram which shows the mechanism of the periphery of the turning motor of the COG blower device shown in FIG. 1 (at the time of clutch engagement). 図１に示したＣＯＧブロワー装置のターニングモータ周辺の機構を示す模式図（クラッチ開放時）。The schematic diagram which shows the mechanism of the periphery of the turning motor of the COG blower apparatus shown in FIG. 1 (when the clutch is released). 図１に示したＣＯＧブロワー装置における空気シリンダ部の構成を説明する図で（ａ）は電磁弁入り状態、（ｂ）は電磁弁切り状態を示す。FIGS. 2A and 2B are diagrams illustrating a configuration of an air cylinder portion in the COG blower apparatus illustrated in FIG. 1, in which FIG. 従来例。Conventional example.

符号の説明Explanation of symbols

１ ＣＯＧブロワー装置本体
２ ターニングモータ
３ レバー体
４、５ クラッチ歯車
６ 空気シリンダ
６ａ シリンダ軸
７ リンク部材
８、９、１０ バルブ
１１ 電磁弁
１２ ランナー
１３ 主軸
１４ 主モータ
１５ ピストン
１６ シリンダー速度調整弁 DESCRIPTION OF SYMBOLS 1 COG blower apparatus main body 2 Turning motor 3 Lever body 4, 5 Clutch gear 6 Air cylinder 6a Cylinder shaft 7 Link member 8, 9, 10 Valve 11 Solenoid valve 12 Runner 13 Main shaft 14 Main motor 15 Piston 16 Cylinder speed adjustment valve

Claims (2)

ランナーとランナーを取り付けた主軸と、前記主軸を回転させる駆動機構を備え、前記駆動機構は、前記主軸の一方の端部側に取り付けられた主電動機と、他方の端部側に取り付けられた予備電動機と、前記主軸と前記予備電動機を随時断続可能なクラッチ機構を備えたＣＯＧブロワー装置の運転方法であって、定常運転時は、前記クラッチ機構を開放して前記主電動機で前記主軸を回転させ、予備運転時は前記クラッチ機構を接続し、前記予備電動機で前記主軸を回転させ、前記主電動機は停止させることを特徴とするＣＯＧブロワー装置の運転方法において、前記クラッチ機構は、空気シリンダーと前記空気シリンダのシリンダ軸に取り付けられ、前記クラッチ機構の断続を行うレバー体と前記空気シリンダーを駆動するエアの供給回路と、前記供給回路を断続する電磁ソレノイドを備え、
定常運転から予備運転に移る際は、主電動機を停止後、前記レバー体を手動操作して前記クラッチ機構を接続した後、前記電磁ソレノイドを励磁して前記エアの供給回路にエアを供給し、前記空気シリンダのシリンダ軸の位置を固定し、
予備運転から定常運転に移る際は、予備電動機を停止後、前記電磁ソレノイドを非励磁として、前記エアの供給回路からエアを抜き、前記クラッチ機構を開放することを特徴とするＣＯＧブロワー装置の運転方法。 A main shaft attached to the runner, and a driving mechanism for rotating the main shaft, the driving mechanism including a main motor attached to one end side of the main shaft and a spare attached to the other end side. A method of operating a COG blower apparatus including a motor and a clutch mechanism capable of intermittently connecting the main shaft and the spare motor, wherein the clutch mechanism is opened and the main motor is rotated by the main motor during steady operation. In the operation method of the COG blower apparatus, the clutch mechanism is connected during the preliminary operation, the main shaft is rotated by the preliminary motor, and the main motor is stopped. A lever body that is attached to a cylinder shaft of an air cylinder and that interrupts the clutch mechanism and an air supply circuit that drives the air cylinder , An electromagnetic solenoid intermittently the supply circuit,
When shifting from steady operation to preliminary operation, after stopping the main motor, manually operating the lever body and connecting the clutch mechanism, then exciting the electromagnetic solenoid to supply air to the air supply circuit, Fixing the position of the cylinder axis of the air cylinder;
When shifting from the preliminary operation to the steady operation, the operation of the COG blower device is characterized in that after the standby motor is stopped, the electromagnetic solenoid is de-energized, the air is extracted from the air supply circuit, and the clutch mechanism is opened. Method. 予備運転から定常運転に移る際において、予備電動機を停止後、前記電磁ソレノイドを遠隔操作により非励磁とすることを特徴とする請求項１記載のＣＯＧブロワー装置の運転方法。   2. The method of operating a COG blower apparatus according to claim 1, wherein when moving from the preliminary operation to the steady operation, the electromagnetic motor is de-energized by remote control after stopping the preliminary motor.
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