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本发明是关于高炉炉缸的供风装置. 高炉炉缸的供风装置,是靠提高炉缸工作强度确保提高高炉生产率及降低焦比的.此装置的供风风口安装在大套内,在炉缸中与水平面成9-15度角向下倾斜. 该结构的缺点是,风口向下倾斜时不能保证风口间不活跃区的面积缩小.同时人们还知道有另一种由安装在大套内并且与炉缸半径呈15度锐角的平面内相切布置的风口所组成的炉缸供风装置. 该装置的缺点是,在风口间不活跃区的面积缩减时也缩小了氧化区向炉缸中心的扩展. 随着鼓风气流与炉缸半径的偏角扩大,
The invention relates to the air supply device of the blast furnace hearth, and the air supply device of the blast furnace hearth ensures the improvement of the blast furnace productivity and the reduction of the coke ratio by increasing the working intensity of the hearth. The air supply air outlet of the device is installed in a large set of The hearth is inclined downward at an angle of 9-15 degrees to the horizontal. The disadvantage of this structure is that the downwind of the tuyere does not allow the area of the inactive area of the tuyere to contract, and it is also known that there is another type of structure, And a tuyere comprising a tuyere arranged tangentially in a plane with an acute angle of 15 degrees to the radius of the hearth.The disadvantage of this device is that the area of the inactivated area of the tuyere is also reduced when the area of the inactive area is reduced, The expansion of the center of the cylinder As the angle of the blast air flow and the hearth radius expands,