工频无芯感应电炉在锌合金中的生产实践  

An Application of the Power-Frequency Coreless Electric Induction Furnace in the Production of Zinc Alloy

作　　者：刘玉芳[1] 张明哲[1] 刘玉弟 LIU Yu-fang;ZHANG Ming-zhe;LIU Yu-di

机构地区：[1]白银有色集团股份有限公司铅锌厂,甘肃白银730900 [2]中车南京浦镇车辆有限公司技术中心,江苏南京210031

出　　处：《有色设备》2022年第4期45-47,63,共4页Nonferrous Metallurgical Equipment

摘　　要：工频无芯感应电炉集高温金属液体、水、电于一体,在锌合金熔铸工艺中广泛应用,该类型电炉具有熔化能力大,电磁搅拌产品化学质量好,锌回收率高,炉温易控制能耗低,可倾转便于操作、频繁洗炉作业过程简单等优点,给锌合金生产提供了有利保障。但受筑炉技术以及炉衬结构因素,炉衬发生漏锌现象较为常见,同行业中,新砌筑的炉衬一般仅能生产500~1000炉次,之后出现炉衬漏锌。漏锌后烧损线圈绝缘及其他配套设施,对操作人员人身安全也构成很大威胁,且漏锌后必须整体拆除坩埚重新砌筑,成本高且持续周期长影响生产。本文结合设计中的不足,对炉体加固区、保温区进行了有效改进,并结合生产采取了相关操作措施,使得炉衬寿命突破了3000炉次,节约了成本,稳定了生产。An Integration of molten metal,water and electricity,the power-frequency coreless electric induction furnace has been widely used in the melting and casting of zinc alloy.The furnace has many strengths,which have facilitated the alloy production:strong melting capability,good chemical quality of the product thanks to the electro-magnetic agitation,high zinc recovery,easy control of furnace temperature,low energy consumption,high operability as it is easy to tilt and rotate,and simple furnace cleaning.The furnace,however,has been plagued by liner leakage,because of issues in liner installation and liner structure.In the industry,a newly lined furnace can only operate for 500-1000 batches before zinc leakage occurs.The leakage burns coil insulations and other auxiliaries,posing great threat to the operator as well.Also as the crucible inside has to be removed to enable relining when a leakage occurs,the costs are high and operation must be interrupted for a rather long period.To address these issues,we have made some improvements on the design of the furnace body reinforcement and insulation areas,and have taken measures during operation accordingly.These efforts have lengthened the liner service life up to 3000 batches,contributing to a more economic and stable operation.

关 键 词：锌合金生产 工频无芯感应电炉 炉衬漏锌 

分 类 号：TF06[冶金工程—冶金物理化学]