The Application Significance of Blast Furnace Gas in the Energy Saving Equipment Industry
Under the requirements of national environmental protection awareness and national energy-saving and emission reduction industry policies, saving high calorific value and high economic value coke oven gas, and fully utilizing low calorific value blast furnace gas have become urgent issues for burner manufacturers to solve. The blast furnace gas burner for tubular furnaces uses blast furnace gas as the heat source for the coking plant tubular heating furnace, expanding the application range of blast furnace gas and reducing energy consumption. It can be widely used in coking plants of steel enterprises and has good promotion value.
Blast furnace gas is the exhaust gas discharged from the ironmaking blast furnace and is a by-product of the ironmaking process. In a blast furnace, for every 1 coke consumed, typically 3800-4000m is generated ³ Dry blast furnace gas. The blast furnace gas directly extracted from the blast furnace contains a large amount of dust (up to 60-80g/m ³）， Can only be used after degradation. The dust content limits for various equipment are as follows: steam boilers at 500g/m ³ Below; Gas turbine below 1g/m ³; Open hearth furnace, hot air furnace, heating furnace 20~50g/m ³; Coke oven below 10g/m ³。 Blast furnaces are a huge consumer of fuel for steel complexes. About 60% of the heat in its fuel is transferred to blast furnace gas. Therefore, fully and effectively utilizing blast furnace gas is of great significance for energy conservation in the metallurgical industry.
Blast furnace gas is a gas with low combustion temperature rise and difficulty in combustion. Preheating is required to reach a higher combustion temperature; It can also be mixed with other gases with better combustion performance, such as coke oven gas. Effective technical measures.
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