铸铁锅炉有着耐腐蚀、分片组装、易于运输安装、且占地面积小、运行安全可靠、使用寿命长等优点。因此,工业发达国家如美国、苏联、日本的铸铁锅炉生产正在不断发展,产量逐年增加,新品种不断出现。而目前我国使用的铸铁锅炉大都是三、四十年代的老式产品,锅炉热效率低,仅为40-50％,严重浪费能源,被称为煤老虎。而且运行时冒黑烟、污染环境。因此,这些锅炉已被国家列为淘汰产品,正在限期改造。 Cast iron boiler with corrosion-resistant, chip assembly, easy to transport and installation, and covers an area of ​​small, safe and reliable operation, long service life and so on. Therefore, industrialized countries such as the United States, the Soviet Union, Japan, the production of cast iron boilers are constantly evolving, increasing production, new varieties continue to emerge. At present, most cast iron boilers used in our country are old products in the 1930s and 1940s. The thermal efficiency of boilers is low, only 40-50%, seriously wasting energy and is called the coal tiger. And run black smoke, pollute the environment. Therefore, these boilers have been classified as obsolete products by the state and are being phased out.