Blast furnace coal spraying tube, and method for reducing coke rate of blast furnace
A technology of blast furnace coal injection and blast furnace, which is applied in the fields of blast furnace coal injection pipe and reduction of blast furnace coke ratio, and can solve problems such as increasing blast furnace coke ratio, reducing ironmaking cost, and heat consumption
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[0026] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0027] refer to figure 1 , On the one hand, the present invention provides a blast furnace coal injection pipe. The blast furnace coal injection pipe includes an injection part 1 and a heating part 2 . Wherein, the injection part 1 is connected with the lance of the blast furnace coal injection pipe, that is, the injection part 1 is the tubular part of the blast furnace coal injection pipe closest to the blast furnace. When the blast furnace coal injection pipe is working, coal powder enters the spray gun from the injection part 1, and then sprays into the furnace cavity of the blast furnace through the spray gun. According to an embodiment of the present inv...
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