補助燃料吹込み操業方法

Auxiliary fuel blowing operating method

Abstract

PROBLEM TO BE SOLVED: To provide an auxiliary fuel blowing operating method by which the pulverized coal blowing operation performed heretofore can be followed, and further, the blowing of waste synthetic resin granular bodies can be performed with the conventional blowing peripheral equipment used as it is. SOLUTION: In this auxiliary fuel blowing operating method in which pulverized coals and waste synthetic resin granular bodies are blown into a furnace as auxiliary fuels respectively via exclusive tuyeres, and furnace operation is performed, provided that the average pulverized coal ratio in the pulverized coal blowing tuyere is defined as PCR (kg/tp), the average waste synthetic resin granular body blowing ratio in the waste synthetic resin granular body blowing tuyere is defined as PLR (kg/tp), the heat generation of the pulverized coals is defined as Qpc, and the heat generation of the waste synthetic resin granular bodies is defined as Qpl, under the following conditions, the blowing of the waste synthetic resin granular bodies is performed: PLR=PCR×(Qpc/ Qpl)×A; wherein, A=0.7 to 1.2. COPYRIGHT: (C)2002,JPO
(57)【要約】 【課題】従来からの微粉炭吹込み操業を踏襲でき、しか も従来からの吹込み周辺設備をそのまま使用して廃合成 樹脂粒体の吹込みを行うことができる補助燃料吹込み操 業方法を提供する。 【解決手段】炉内へ補助燃料として微粉炭及び廃合成樹 脂粒体をそれぞれ専用の羽口を介して吹込み、炉操業を 行う補助燃料吹込み操業方法であって、微粉炭吹込み羽 口の平均微粉炭比をPCR[kg/tp]、廃合成樹脂粒 体吹込み羽口の平均廃合成樹脂粒体吹込み比をPLR [kg/tp]、微粉炭の発熱量をQpc、廃合成樹脂粒 体の発熱量をQplとするとき、下記の条件で廃合成樹 脂粒体の吹込みを実施する。 PLR=PCR×(Qpc/Qpl)×A 但し、A=0.7以上1.2以下

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    JP-2009068088-AApril 02, 2009Jfe Steel Kk, Jfeスチール株式会社高炉への合成樹脂材の吹き込み方法