余热回收技术在燃气铝合金集中熔化炉上的应用  

Application of Waste Heat Recovery Technology to the Gas-fired Aluminum Alloy Smelting Furnace

作　　者：周宏远 ZHOU Hong-yuan

机构地区：[1]江苏东九重工股份有限公司,江苏盐城224001

出　　处：《有色冶金节能》2021年第4期29-32,共4页Energy Saving of Nonferrous Metallurgy

摘　　要：燃气铝合金集中熔化炉的熔化和保温过程会产生大量高温烟气,该烟气温度高,流量波动大,间歇性强,能源浪费严重。在全面了解熔化炉生产特点的基础上,采用新型余热回收技术对熔化炉烟气进行回收。本文探讨了熔化炉烟气收集装置的运行特点,以及回收技术对烟道、余热锅炉机组的设计要求,并以新型余热回收装置在南京某铝零件制造公司的应用,说明新型余热回收技术可以回收集中熔化炉以往排放到大气中的烟气显热,产生的蒸汽可用于企业生产、生活,从而达到节能及净化车间生产环境的目的,实现铝合金零件生产企业的高效可持续发展。A large amount of high temperature off-gas will be produced during the smelting and thermal insulation of gas-fired aluminum alloy smelting furnace.The off-gas is characterized by a high temperature,large fluctuation and frequent discontinuity,causing severe energy wastage.Based on a comprehensive understanding about the operation characteristics of smelting furnace,a new type of waste heat recovery technology is adopted to recover the off-gas of smelting furnace.This paper discussed the operation characteristics of off-gas collection device for the smelting furnace and design requirements of recovery technology on the off-gas recovery flue and waste heat boiler(WHB)unit.The application of a new waste heat recovery device in an aluminum parts manufacturing company in Nanjing suggested that the new type of waste heat recovery technology can recover the sensible heat of off-gas previously discharged into the atmosphere by the smelting furnace,while the produced steam can be used in corporate production and life so as to achieve the purpose of saving energy and cleaning production environment in the plant,thus realizing efficient and sustainable development of enterprise manufacturing aluminum alloy parts.

关 键 词：集中熔化炉 烟气显热 烟气收集装置 炉压检测 烟气回收烟道 余热锅炉 余热回收 

分 类 号：TF821[冶金工程—有色金属冶金] TK115[动力工程及工程热物理—热能工程]