(长沙有色冶金设计研究院，长沙 410011)
摘 要: 根据锌挥发窑工艺特点和出口烟尘条件，确定该型余热锅炉设计需要解决的突出问题是积灰， 其次是腐蚀和磨损； 进而给出立式布置、 全悬吊、四道、 自然循 环锅炉结构型式的选择成因， 从低温防腐要求、蒸汽使用目的以及回收系统的技术经济性等方面全面论述了余热锅炉技术参数的确定方法；总结出锌挥发窑余热锅炉整体设计的功能性和结构性特点，并列出锅炉结构设计和热力计算中一些合理的选择参数， 指出了设计过程中易于忽视的一些问题，推荐了一些重要构件的设计程序。 还介绍了部分投运锌挥发窑余热锅炉的热力经济性。
关键字: 余热锅炉 锌挥发窑 高温烟气
（Changsha Engineering and Research Institute of Nonferrous Metallurgy, Changsha 410011, P. R. China）
Abstract:In reference to the design of waste heat boilers of zinc volatilization kilns, the optimum solution to the troublesome problems of dust deposition, corrosion and wearing was determined by the kiln process characteristics and outlet gas conditions. The reasons for the boiler structure selection of the vertical-type, the suspension-type, the 4-stack type and the g, ravity recirculation were expounded. In addition, the methods for the determination of waste heat boiler technical parameters were introduced, in respect of low-temperature corrosion-proof requirements, the aim of steam use and the recovery system technoeconomics. Then the functional and structural features of the overall design of the waste heat boilers, together with a listing of some selection parameters for boiler structure design and thermal calculations were sumed up. Some aspects liable to be neglected in design were pointed out and procedures were recommended for design of some important structural members. Finally, the thermal economics of the waste heat boilers already in operation were offered.
Key words: waste heat boiler zinc volatilization kiln high temperature gas
