Pulverized coal engine is fully used and promoted in different industrial fields, resulting in good performance operation contribution and use contribution. The blast furnace injection pulverized coal technology started in China in the 50s and 60s of the last century, and promotion has been used for more than half. In the century, the application of coal injection technology in the metallurgical industry has the following advantages:
1, pulverized coal injection to replace part of the coke, on the one hand, can save coking investment, less to build coke oven, reduce coking caused by air pollution; on the other hand can greatly ease the coking coal supply and demand tension situation. Which crushing process consumes the most energy Province. The most energy-consuming process of crushing. All kinds of pulverizers in the milling process both have the above two or three ways, but depending on the type of the main pulverized coal injection and the type of adjustment. Thermal system and stable operation.
2. Partial replacement of metallurgical coke with pulverized coal, so that the coke ratio of blast furnace ironmaking is reduced, and the cost of pig iron is reduced.
1, pulverized coal injection to replace part of the coke, on the one hand, can save coking investment, less to build coke oven, reduce coking caused by air pollution; on the other hand can greatly ease the coking coal supply and demand tension situation. Which crushing process consumes the most energy Province. The most energy-consuming process of crushing. All kinds of pulverizers in the milling process both have the above two or three ways, but depending on the type of the main pulverized coal injection and the type of adjustment. Thermal system and stable operation.
2. Partial replacement of metallurgical coke with pulverized coal, so that the coke ratio of blast furnace ironmaking is reduced, and the cost of pig iron is reduced.
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