孙志立，张冬平(.贵州省磷酸盐工业协会　贵州贵阳　550000; .昆明锅炉有限责任公司　云南昆明　650000)



黄磷尾气在燃煤蒸汽锅炉中应用的可行性分析

孙志立1，张冬平2
(1.贵州省磷酸盐工业协会贵州贵阳550000; 2.昆明锅炉有限责任公司云南昆明650000)

摘要针对国内黄磷尾气资源化利用面临的两大难题和必须解决的两个基本问题进行了研究、探讨。分析了黄磷尾气代替燃煤作为蒸汽锅炉燃料后对设备产生严重腐蚀的机理、特征及影响因素，指出尾气中残磷是锅炉腐蚀穿孔的主要原因。采用专利技术“一种黄磷尾气燃气锅炉换热主体装置”制造的不同生产能力的黄磷尾气锅炉已从根本上解决了腐蚀问题，实际运行时间最长的已达4年以上，取得了环保和经济效益双丰收。

关键词黄磷尾气资源化利用燃煤蒸汽锅炉可行性分析

Feasibility Analysis of Use of Yellow Phosphorus Tail Gas in Coal-Burning Steam Boiler

Sun Zhili1，Zhang Dongping2
(1.Guizhou Phosphate Industry Association Guizhou Guiyang 550000; 2.Kunming Boiler Co.，Ltd.Yunnan Kunming 650000)

Abstract In connection with two major obstacles faced with and two basic problems that must be solved in the resource utilization of yellow phosphorus tail gas in China，study and investigation are carried out.An analysis is made of the mechanism，characteristics and influencing factors of serious equipment corrosion after yellow phosphorus tail gas is used for steam boiler instead of fire coal，and it is indicated that it is the residual phosphorus in tail gas that is the main cause of corrosion perforation of the boiler.A yellow phosphorus tail gas boiler，which is made by utilizing patent technology，“the main heat exchanger device in yellow phosphorus tail gas burning boiler”and with different production capacity，has solved corrosion problem fundamentally，the longest time of actual operation is more than 4 years，great achievements in both environmental protection and economic benefit have been attained.

Keywords yellow phosphorus tail gas resource utilization coal-burning steam boiler feasibility analysis

黄磷是磷化工的基础原材料，其下游产品品种繁多，具有较高的经济延伸价值。目前，世界上的黄磷生产主要集中在中国、哈萨克斯坦、美国、越南、荷兰等国家。经过50多年的发展，特别是近10年来，我国黄磷生产已成为具有中国特色的产业，在国际市场上占具主导地位，其产量、出口量、消费量及产能均居世界第1位。

因黄磷是高耗能、高物耗的产品，对电能和原料有很强的依赖性，因此，我国黄磷生产主要集中于水电和磷矿资源相对集中的云、贵、川、鄂四省。该区域内的水电具有很强的季节性，磷矿地处山区，生产的磷矿、水电往往无法外送，故黄磷生产成为水电行业的主要“调峰储能”产品(吨黄磷耗电13 500～14 500 kW·h)，同时减轻了磷矿外运带来的交通压力(吨黄磷耗磷矿约10 t)。……