四角切圆燃烧锅炉炉膛结渣原因分析与防治措施
任兵¹，姚力¹，王治博²
（1. 国电科学技术研究院有限公司太原分公司，山西 太原 030006；2. 国电承德热电有限责任公司，河北 承德 067000）
摘要： A 电厂四角切圆燃烧锅炉炉膛结渣严重。分别从炉膛设计结构特性、炉内空气动力工况、锅炉运行调整及入炉
煤质特性等方面进行分析。通过分析认为，锅炉燃用煤质的较大变化是造成炉膛结渣的主要原因。调整混煤掺烧方案或
进行燃烧器改造是解决该问题的有效途径。通过混煤掺烧试验，减少低热值煤的掺烧量后，炉膛结渣明显减轻。
关键词： 四角切圆燃烧锅炉；炉膛水冷壁结渣；原因分析；防治措施
中图分类号： TK16     文献标识码： A     文章编号： 2095-0802-(2020)07-0115-02
Cause Analysis and Prevention Measures of Slagging in Furnace of Tangentially Fired
Four-corner Boiler
REN Bing¹, YAO Li¹, WANG Zhibo²
(1. Taiyuan Branch Company of Guodian Science and Technology Research Institute Co., Ltd., Taiyuan 030006, Shanxi, China;
2. Guodian Chengde Thermal Power Co., Ltd., Chengde 067000, Hebei, China)
Abstract: The slagging is serious in furnace of tangentially fired four-corner boiler in A Power Plant. This paper analyzed the
characteristics of furnace design structure, aerodynamic working condition in furnace, boiler operation adjustment and coal quality
characteristics in furnace. Through the analysis, it is considered that the main cause of furnace slagging is the great change of coal
quality. The effective way to solve this problem is to adjust the plan of mixed coal combustion or to reform the burner. Through the
mixed coal combustion test, the slagging in the furnace is obviously reduced after the amount of low calorific value coal is reduced.

Key words: tangentially fired four-corner boiler; slagging of furnace water wall; analysis of causes; prevention measures