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Article

10 Aug 2016

Author:
赵孟, 澎湃新闻,
Author:
赵孟, 澎湃新闻,
Author:
趙孟, 澎湃新聞

湖北当阳电厂爆管21死,专家称管道内高压蒸汽可达500℃

…湖北当阳市马店矸石发电有限责任公司高压蒸汽管道发生爆管事故…已确认死亡21人、受伤5人(其中3人重伤)…初步调查结果显示,事故原因为该公司热电项目在建调试过程中,高压蒸汽管道破裂,蒸汽外泄所致。

…煤矸石是煤炭企业生产过程产生数量最大的工业固体废弃物之一…目前我国存量煤矸石已超过40亿吨,约占我国工业固体废物的四分之一…由于煤矸石热量低,运输成本高,堆积过程中容易对环境造成污染,因此利用煤矸石发电,成为消纳煤矸石的主要手段之一。

…[专家称],煤矸石发电厂蒸汽管爆炸的危害主要是产生的高温、高压水蒸气对人体造成伤害,高压蒸汽管道破裂既可能与管道质量有关,也可能与管道老化、检修不到位有关…由于发电厂一般是封闭的,一旦蒸汽管道发生爆炸,高温、高压的水蒸气就会倒灌进入锅炉和汽轮机两端,可能引发次生爆炸,附近的工人很难幸免。

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