인조대리석 제조공정의 화재, 폭발로 인한 피해영향 평가
Evaluating Damage by Fire and Explosion in Artificial Marble Manufacturing Process
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초록
인조대리석의 제조 시에는 인화성물질이 많이 필요하므로 화재의 위험이 크다. 주원료인 MMA (Methyl Methacrylate)나 UPE 수지(Unsaturated Polyester Resin)는 상온에서 점화될 수 있는 인화성액체이며, 열매체보일러에 사용되는 NG(Natural Gas)는 인화성 가스이므로 위험성이 크다. 본 연구에서는 인조대리석 제조공정에서 인화성 물질에 의해 화재가 발생할 때에 폭발압과 복사열에 의한피해범위를 분석하였고 다음과 같은 결과를 얻었다. 최악의 누출 시나리오를 적용했을 경우 증기운폭발로 인한 피해거리가 가장 크게 예상되었으며 물질별로 보면 MMA는 251m, UPE 수지는 129m, 그리고 NG는 41m로 각 각 예측되었다. 따라서 MMA, UPE수지, NG 등 인화성 물질로 인해서 화학사고가 발생될 경우에는 예측된 피해거리 밖으로 신속하게 대피하여야 하며, 평소 안전과 관련된 점검, 예산의 투입, 설비의 유지보수 등에 있어서도 피해거리가 큰 순서인 MMA, UPE , NG 순서로 우선순위를 정하여 실행하여야 한다는 결론을 얻었다.
Abstract
The production of artificial marble requires a large amount of flammable materials, which increases the risk of fire. This study analyzed the range of damages caused by explosion pressure and radiant heat when fire in artificial marble manufacturing process. It is found that, when the worst-case scenario was applied, the damage distance due to VCE was expected to be the largest. MMA was estimated to be 251m, UPE resin was estimated to be 129m, and NG was estimated to be 41m. When a chemical accident occurs due to materials such as MMA, UPE resin, NG, a prompt evacuation out of the damage area would be critical. This finding suggests that safety management such as safety check, budget input and equipment maintenance should prioritize and manage these materials in the order of MMA, UPE and NG.
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