본 연구는 석탄을 건류하여 코크스를 만드는 공정의 적절한 열량 공급을 위하여 석탄의 종류별 코크스화열량을 사용하여 배합탄의 코크스화열량을 예측함으로서 코크스오븐 연소제어시스템을 효율적으로 운영하기 위함이다. 2중히터를 사용함으로서 로체방산열량을 최소화시킨 코크스화열량 측정장치를 제작하여 주로 사용되는 29종류의 단일탄의 코크스화열량을 측정하였으며 이 단일탄들 중 10-11종류를 2-20%씩 배합한 배합탄의 코크스화열량을 측정하였다. 단일탄의 코크스화열량과 배합비의 곱은 실제 측정된 배합탄의 코크스화열량과 평균 ±7.1kcal/kg의 편차를 보였으나 단일탄의 코크스화열량, 배합비 및 기여도로 구성된 배합탄의 코크스화열량 추정식을 이용하여 계산한 값은 실제 측정값과 평균 ±0.9kcal/kg으로 상당히 일치하였다.

This study was performed to effectively use a combustion control system of coke oven battery by estimating the required coke heat quantities of mixed coals from coke heat quantities of individual coals. The coke heat quantities for 29 different coals and mixed coals blending 2-20% of individual coals of 10-11 types were measured by the apparatus using double heater which could minimize surface heat loss. The multiplication of coke heat quantities of individual coals by mixing ratios was considerably different from actual measured coke heat quantities of mixed coals. To estimate the coke heat quantities of mixed coals, the calculation by estimating equation that is expressed as a function of coke heat quantities of individual coals, mixing ratios and weighting factor was in good agreement with real measured values.

Coke Heat Quantities Mixed Coal Estimation

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