JP2006188608A - コークス炉煙道内部補修方法及び作業用断熱ボックス、並びに、補修時のコークス炉操業方法 - Google Patents
コークス炉煙道内部補修方法及び作業用断熱ボックス、並びに、補修時のコークス炉操業方法 Download PDFInfo
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Abstract
【解決手段】 コークス炉2の煙道1に開口1aを設けて、当該開口1aより煙道1の内部に作業用断熱ボックス5を挿入する。この断熱ボックス5に設けられた入り口5cから断熱ボックス5内に入った作業者Mが、断熱ボックス5で囲まれた煙道1内部の補修を行う。
【効果】 コークス炉の煙道内部の補修に際し、良好な作業環境を維持でき、作業時間を短縮できるとともに、コークス炉の燃焼停止を行う必要もない。
【選択図】 図1
Description
コークス炉の燃焼を停止することなく、良好な作業環境雰囲気を維持しながら、コークス炉の煙道内部を補修するために、
コークス炉煙道に開口を設けて、当該開口より煙道内部に作業用断熱ボックスを挿入した後、この断熱ボックスに設けられた入り口から断熱ボックス内に入った作業者が、断熱ボックスで囲まれた煙道内部を補修する点を最も主要な特徴としている。
前記煙道の開口時、
前記煙道に設ける開口よりも上流側に、煙道ドラフト計と燃焼排気ガスの酸素濃度計のどちらか一方または両方を設置し、
前記設置する計器の測定値をもとに燃焼制御を行う。これが本発明のコークス炉操業方法である。
図1は本発明のコークス炉煙道内部補修方法を説明する概略図で、図1中の1はコークス炉2で発生した燃焼排気ガス3を煙突4まで導く煙道である。
前述の本発明のコークス炉煙道内部補修方法を実施するに際しては、煙道1の開口1aより外気6が煙道1の内部に入り込むので、前記開口1aの下流側における外気6と燃焼排気ガス3が混合された位置で、燃焼排気ガス3のO2値や煙道ドラフト力を測定しても、適正な燃焼状態を把握することはできない。
U=(1/2)×ρ×V2+P+Z
1a 開口
1b 煙道開口部開口面積調整用扉
2 コークス炉
3 燃焼排気ガス
5 断熱ボックス
5c 入り口
5d 流入防止用開口
7 酸素濃度計
8 煙道ドラフト計
Claims (6)
- コークス炉煙道に開口を設けて、当該開口より煙道内部に作業用断熱ボックスを挿入した後、この断熱ボックスに設けられた入り口から断熱ボックス内に入った作業者が、断熱ボックスで囲まれた煙道内部を補修することを特徴とするコークス炉煙道内部補修方法。
- 前記作業用断熱ボックスは、煙道の下流側に向かって燃焼排気ガスの流入防止用開口が設けられ、
また、前記煙道に設けた開口に面して入り口が設けられていることを特徴とする請求項1に記載のコークス炉煙道内部補修方法。 - 前記作業用断熱ボックスの入り口の開口面積を制御し、作業用断熱ボックスを通して煙道内部に流れ込む空気量を調節しつつ煙道内部を補修することを特徴とする請求項1又は2に記載のコークス炉煙道内部補修方法。
- コークス炉煙道内部を補修するに際し、
前記煙道の開口時、
前記煙道に設ける開口よりも上流側に、煙道ドラフト計と燃焼排気ガスの酸素濃度計のどちらか一方または両方を設置し、
前記設置する計器の測定値をもとに燃焼制御を行うことを特徴とするコークス炉操業方法。 - コークス炉煙道内部の補修時、コークス炉煙道に設ける開口から煙道内部に挿入される作業用断熱ボックスであって、
煙道の下流側に向かって燃焼排気ガスの流入防止用開口が設けられ、煙道に設けた開口に面して入り口が設けられていることを特徴とする作業用断熱ボックス。 - 前記入り口の開口面積が制御可能なように構成されていることを特徴とする請求項5に記載の作業用断熱ボックス。
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