铝合金加工废物遇湿产氢规律研究  

Study on hydrogen production law of aluminum alloy processing waste when wet

作　　者：刘聪聪 许开立[1] 王雪[1] 郑婷方 Liu Congcong;Xu Kaili;Wang Xue;Zheng Tingfang(College of Resources and Civil Engineering,Northeastern University,Liaoning Shenyang 110819,China)

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110819

出　　处：《消防科学与技术》2023年第4期495-498,共4页Fire Science and Technology

基　　金：国家级大学生创新创业训练计划资助项目(202110145054);中央高校基本科研业务专项专项资金资助(N2124001);国家自然科学基金资助项目(52074066)。

摘　　要：铝合金材料在加工过程中产生的废物遇到潮湿环境具有一定火灾爆炸危险性。为控制合金废物储放、运输过程中的火灾爆炸危险性,研究其产氢特性是必要的。借助气体组分分析仪分析铝切屑、含油铝污泥、铝打磨粉尘、铝镁合金打磨粉尘在不同质量、含水率下氢气的产量和铁对废铝粉产氢作用的影响。结果表明,铝切屑、含油污泥、铝打磨粉尘、铝镁合金打磨粉尘在潮湿环境下都具有一定的产氢能力,且颗粒越小、表面氧化层越薄,越容易产生氢气;废物质量和含水率与产氢量呈正比;铁屑在常温潮湿环境不与水发生产氢反应,但由于铁的电偶腐蚀作用,其对铝加工废物遇湿产氢具有促进作用,且铁含量越高,效果越明显。The waste produced in the process of aluminum alloy processing has a certain risk of fire and explosion when encountering humid environment.In order to control the risk of fire and explosion during storage and transportation of alloy waste,it is necessary to study its hydrogen production characteristics.The hydrogen production of aluminum chips,oily aluminum sludge,aluminum grinding dust and aluminum-magnesium alloy grinding dust with different mass and moisture content and the influence of iron on hydrogen production of waste aluminum powder were analyzed by gas component analyzer.The results show that aluminum chips,oily sludge,aluminum polishing dust and aluminum-magnesium alloy polishing dust all have certain hydrogen production capacity in humid environment,and the smaller the particles and thinner the surface oxide layer,the easier it is to produce hydrogen.The quality and moisture content of waste are directly proportional to the hydrogen production rate;Scrap iron does not react with water to produce hydrogen at room temperature and humidity,but because of galvanic corrosion of iron,iron can promote the hydrogen production rate of aluminum processing waste,and the higher the iron content,the more obvious the promotion effect.

关 键 词：铝合金加工废物 氢气 火灾爆炸 铁粉 

分 类 号：X932[环境科学与工程—安全科学] TS912.3[轻工技术与工程]