Ziyue Gas Hot Blast Furnace has high refractory material, which can be measured by optical fibre. It has survived in the past. Because of its high temperature resistance, safety and high wind resistance, the gas hot blast stove has once become the favorite hot man in the power plants. The gas hot blast stove manufacturers have analyzed the low hot blast temperature in the iron-making system of our country in the previous articles. The reason. In view of the shortage of high calorific value fuel in our country, the way to obtain high hot air temperature with low calorific value gas is expounded. The research progress and application of combustion control technology for hot blast stoves at home and abroad are introduced. The principle, practical application and advantages and disadvantages of traditional control, mathematical model and artificial intelligence are discussed respectively. The development direction of combustion control technology for hot blast stoves is put forward. 燃气热风炉厂家主要针对5 000m3级别大型高炉的高风温热风炉技术进行技术比较分析,选择5 000m3级别大型高炉的设计实例,在风温、风量、燃烧介质等热风炉设计参数相同的同口径条件下,对Didier外然式热风炉和顶燃式成都找人公司进行本体表面积和表面散热比较,同时通过数值模拟分析,比较这2种成都收账公司的高温烟气速度分布、高温烟气流场分布、格子砖顶面温度分布,为大型高炉成都收账公司形式的合理选择提供建设性建议。通过比较分析,顶燃式热风炉的本体结构技术、流场热传输技术较其他形式热风炉具有明显优点,顶燃式热风炉技术是目前高风温热风炉技术发展的趋势,对于大型高炉采用顶燃式热风炉技术可以取得可观经济效益。
Gas-fired hot blast stove manufacturer mainly compares and analyses the technology of high-temperature hot blast stove of 5,000 m3 grade large blast furnace, chooses the design example of 5,000 m3 grade large blast furnace, and carries out this research on Didier external hot blast stove and top-fired hot blast stove under the same caliber condition with the same design parameters of hot blast stove such as air temperature, air volume and combustion medium. Comparing body surface area and surface heat dissipation, and through numerical simulation analysis, comparing the high-temperature flue gas velocity distribution, high-temperature flue gas field distribution and lattice brick top temperature distribution of these two hot blast stoves, providing constructive suggestions for the reasonable selection of large blast furnace hot blast stoves. Through comparative analysis, the main structure technology and flow field heat transfer technology of top-fired hot blast stove have obvious advantages over other types of hot blast stoves. The top-fired hot blast stove technology is the trend of the development of high-temperature hot blast stove technology at present, and can achieve considerable economic benefits for large blast furnaces by adopting top-fired hot blast stove technology.
In recent years, gas hot stove manufacturers have analyzed the current situation of hot stoves in China. They believe that there are two main reasons affecting the further improvement of the air temperature level of most hot stoves in China: one is the low vault temperature; the other is the problems in the design of hot air pipeline system. In order to further increase the air temperature, the double preheating temperature should be increased. Silicon brick should be used in high temperature area, the automatic control system should be improved and the problems in the design of hot air pipeline system should be corrected. By discussing the structure type, refractory material, burner and high blast temperature technology of hot blast stoves, this paper introduces the solutions to these problems abroad, and makes some assumptions about the future development direction and trend of hot blast stoves in China based on the actual development of hot blast stoves in China.
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