北营新1号高炉高风温生产实践

摘要

北营新1号高炉通过优化高炉煤气处理流程，配置旋切顶燃式热风炉，采用前置预热炉、热管换热器分别预热助燃空气和煤气，使用带横梁的炉箅子技术、管道保温技术以及优化烧炉技术等，为送风温度达到1250℃创造了条件。高炉在精料基础上，通过控制合理炉腹煤气量指数和理论燃烧温度，优化煤气流分布，规范高炉操作等措施，2013年全年平均风温1248℃，达到国内同型高炉领先水平。%In order to increase the blast temperature up to 1250℃, a series of measures have been carried out , such as adopting the hot blast stove with whirling top combustion , using pre-heating furnace and heat exchangers to preheat combustion air and gas , and using the technology of porous furnace grate with beam , pipe insulation and optimized combustion .By controlling the appropriate bosh gas in-dex, theoretical combustion temperature , gas flow distribution and standardizing operation , the annual average blast temperature a-chieve 1248℃in 2013 , which is of advanced level for the same type of blast furnace .