由哈尔滨铸铁锅炉厂试制的ZZN1.4—0.5/95/70—AⅡ型铸铁锅炉于1990年12月14日在哈尔滨市通过了新产品鉴定。 铸铁锅炉作为采暖锅炉过去在我国应用较广,但是旧式铸铁锅炉由于不能适应中、低质煤种,效率很低,因而在八十年代初被国家明文规定属于应该淘汰的“煤老虎”之列,不允许生产和继续使用。目前我国的铸铁锅炉数量仅占工业锅炉总数的0.7％。 但是旧式铸铁锅炉之所以成为“煤老虎”,并不是因为它由铸铁制成,而在于结构设计(主要是燃烧设备)不适应煤种。如果改进设计,能在热效率和环境保护方面满足要求,那么铸铁锅炉仍是具有生命力的。特别是与钢制锅炉相比,至少还有两个独特的优点:①铸铁 ZZN1.4-0.5 / 95/70-A Ⅱ type cast iron boiler prototyped by Harbin Cast Iron Boiler Factory passed the new product identification in Harbin on December 14, 1990. Cast iron boilers as heating boilers used to be widely used in our country. However, old-type cast iron boilers, which were ineffective due to their inability to adapt to medium and low quality coal, were listed as “coal tigers” by the state in the early 1980s , Does not allow production and continue to use. At present, the number of cast iron boilers in China only accounts for 0.7% of the total number of industrial boilers. However, the reason why old-style cast iron boilers became “coal tigers” was not that they were made of cast iron but rather that their structural design (mainly combustion equipment) was not suitable for coal. Cast iron boilers are still viable if they are designed to meet the requirements of thermal efficiency and environmental protection. Especially compared with steel boilers, there are at least two unique advantages: ① cast iron