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一、问题的提出目前国内外高炉喷煤都采用压缩空气将煤粉由制煤车间输送到煤粉罐,再由喷煤罐吹入高炉,因此,在设计喷吹设备时,首先必须确定吹送空气的风压、风量、风速和煤粉浓度以及管道直径等参数,了解喷吹不同粒度的煤粉对这些参数的影响。机械给煤泵和常压罐喷吹,对解决喷吹系统的安全、可控和简化问题行重要意义,为此,必须尽可能降低喷吹压力,采用小风速风量操作,才能适应机械泵的防倒风及其它方面的要求。
First, the issue put forward At present, blast furnace coal injection at home and abroad are using compressed air to the pulverized coal plant coal from the workshop transported to the pulverized coal injection tank, then blown into the blast furnace, therefore, in the design of injection equipment, we must first determine the blowing Air pressure, air volume, wind speed and pulverized coal concentration and pipe diameter and other parameters to understand the impact of different sizes of pulverized coal injection on these parameters. Mechanical feed pump and atmospheric pressure tank injection, spray system to solve the safety, control and simplification of the line is important, to this end, you must minimize the injection pressure, the use of small wind speed air flow operation in order to adapt to the mechanical pump Anti-wind and other aspects of the requirements.