Judging from the current application of high-temperature electric furnaces in steelmaking, the flue gas temperature and flow rate have large periodic fluctuations, and the dust-containing characteristics of the electric furnace flue gas also have a greater impact on the layout and structure of the subsequent waste heat recovery equipment. Generally speaking, there are two main problems. 

High-temperature electric furnace steelmaking 

On the one hand, during oxygen blowing and smelting, the flue gas flow rate is large and the temperature is the highest. At this time, the thermal shock and wear erosion of the flue gas to the heat exchange tube bundle of the waste heat boiler reaches the maximum value. Therefore, the structure of the high-temperature electric furnace needs to be adapted to the flue gas in the future. Thermal stress caused by fluctuations. 

On the other hand, during the tapping period, the flue gas temperature is low, the flow rate is the smallest, and the flue gas flow rate decreases, and the heating area of the boiler will gradually decrease. After the next steelmaking cycle, the exhaust gas temperature of the high-temperature electric furnace will gradually rise, which will affect the subsequent dust removal equipment. Running. At the same time, due to the large difference between the smelting conditions of the electric furnace and the actual application, the flue gas volume, dust content and flue gas temperature are greatly different from the design parameters, and the relevant parameters still need to be theoretically analyzed and tested for verification analysis in the subsequent design. , And then continue to improve. volume_upcontent_copyshare