氮化炉含氰固废焚烧除氰工艺实验研究  

Experimental study on the incineration process for cyanide removal from cyanide-containing solid waste in a nitriding furnace

作　　者：李鼎 姜永丰 孙殿兴 刘玉东 海龙[3] 赵亚波 郭美祎 褚志强 Li Ding;Jiang Yongfeng;Sun Dianxing;Liu Yudong;Hai Long;Zhao Yabo;Guo Meiyi;Chu Zhiqiang(Benxi Steel Group Corporation Ltd.,Benxi 117000,China;Fuxin Huanfa Waste Disposal Corporation Ltd.,Fuxin 124000,China;Liaoning Technical University,School of Mechanical and Engineering,Fuxin 124000,China)

机构地区：[1]本钢集团有限公司,辽宁本溪117000 [2]阜新环发废弃物处置有限公司,辽宁阜新124000 [3]辽宁工程技术大学力学与工程学院,辽宁阜新124000

出　　处：《煤炭与化工》2025年第2期137-140,160,共5页Coal and Chemical Industry

基　　金：辽宁省教育厅基本科研项目(LJ242410147078);项目名称:低品质固废复合膏体充填采矿围岩变形与地压控制研究:“本溪钢铁(集团)矿业有限责任公司歪头山铁矿”科研项目:“高压辊磨超细尾矿制备复合生态复垦土技术研究”项目编号:24-2076资助。

摘　　要：含氰固废的毒性强、成分复杂、处理难度大。实验将氮化炉含氰固废破碎并洗涤后烘干,使用马弗炉模拟含氰固废焚烧处理的工艺条件,实验焚烧后样品中总氰化物含量与焚烧温度和焚烧时间的关系,确定焚烧处理含氰固废的最佳工艺条件。结果表明,氮化炉含氰固废中含超标氰化物,含有一定的水分。含氰固废破碎至最大粒径10 mm焚烧,达标排放的最低焚烧温度为450℃、时长为40 min,500℃时焚烧时长可缩短为30 min;含氰固废破碎至最大粒径5 mm并洗涤,烘干后进行焚烧,达标排放的最低焚烧温度降低为350℃,焚烧时长仅为30 min,可有效减少能耗并提高焚烧处理效率;氮化炉含氰固废采用焚烧方法除氰效率高、可靠性强、工艺易于实现,是优选的处理方法。The cyanide-containing solid waste is highly toxic,has a complex composition,and is difficult to treat.In the experiment,the cyanide-containing solid waste from the nitriding furnace was crushed or crushed and washed,then dried.A muffle furnace was used to simulate the incineration process of cyanide-containing solid waste.The relationship between the total cyanide content in the samples after incineration and the incineration temperature and time was examined to determine the optimal process conditions for the incineration treatment of cyanide-containing solid waste.The results indicate that the cyanide-containing solid waste from the nitriding furnace contains cyanide levels that exceed the standard and has a certain moisture content.The cyanide-containing solid waste was crushed to a maximum particle size of 10 mm for incineration.The minimum incineration temperature for compliant emissions is 450℃with a duration of 40 minutes,while at 500℃,the incineration duration can be shortened to 30 minutes.The cyanide-containing solid waste was crushed to a maximum particle size of 5 mm,washed,and then dried before incineration.The minimum incineration temperature for compliant emissions was reduced to 350℃,with an incineration duration of only 30 minutes.This effectively reduces energy consumption and improves incineration efficiency.The incineration method for cyanide removal from the nitriding furnace's cyanide-containing solid waste is highly efficient,reliable,and easy to implement,making it the preferred treatment method.

关 键 词：氮化炉 含氰固废 焚烧 温度 除氰工艺 

分 类 号：TQ209[化学工程—有机化工]