Under the national environmental protection awareness and the national industrial policy requirements for energy conservation and emission reduction, saving coke oven gas with high calorific value and high economic value and making full use of blast furnace gas with low calorific value have become an urgent issue for burner manufacturers. The blast furnace gas burner for tube furnace uses blast furnace gas as the heat source of the tube heating furnace of the coking plant, which expands the application range of blast furnace gas and reduces energy consumption. It can be widely used in coking plants of iron and steel enterprises and has good promotion value.
Blast furnace gas is the exhaust gas discharged from the iron-making blast furnace and is a by-product of the iron-making process. In a blast furnace, 3800~4000m³ dry blast furnace gas is usually produced for every 1 coke consumed. The blast furnace gas directly drawn from the blast furnace contains a large amount of dust (up to 60~80g/m³) before it can be used after being degenerated. The dust content of various equipment is restricted as follows: steam boiler below 500g/m³; gas turbine below 1g/m³; open hearth, hot blast stove, heating furnace 20~50g/m³; coke oven below 10g/m³. Blast furnace is a huge consumer of fuel in steel complexes. About 60% of the heat of its fuel is transferred to blast furnace gas. Therefore, full and effective use of blast furnace gas is of great significance to energy conservation in the metallurgical industry.
Blast furnace gas is a kind of gas with low combustion temperature rise and is difficult to burn. It needs to be preheated to reach a higher combustion temperature; it is also possible to mix it with other gases with better combustion performance, such as coke oven gas. An effective technical measure.
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