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中铝河南分公司热力厂4#锅炉系中温中压自然循环煤粉锅炉,1966年投产,1993年从75t/h改造到80t/h,型号更换为NG-80/3.82。为了提高低负荷稳燃性能,2001年将前墙三个主燃烧器由轴向叶片式改造为西安交通大学研制的径向浓淡旋流燃烧器。近几年,随着氧化铝产量的不断提高。供汽总负荷越来越大,特别是冬季供暖期运行锅炉基本满负荷运行才能保证生产的需要。4#锅炉多次出现炉膛结渣严重被迫降负荷运行甚至停炉处理的情况,严重影响了生产的正常进行。
Central China Henan Branch Thermal Plant 4 # Boiler Department of moderate temperature and pressure natural pulverized coal boilers, put into operation in 1966, 1993 from 75t / h to 80t / h, model change to NG-80 / 3.82. In order to improve the stability of low-load steady combustion, the three main burners of the front wall were transformed from axial vanes to radial thick-and-thin swirl burners developed by Xi’an Jiaotong University in 2001. In recent years, with the continuous improvement of alumina production. Increasing the total steam supply, especially in the winter heating boiler running at full capacity to ensure the production needs. 4 # boiler many times the furnace slagging was forced to load or even shutdown operation, seriously affecting the normal production.