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太钢峨口铁矿成品分厂球团竖炉运行的两台Ｙ４－７３－１１ＯＮ０１４Ｄ 引风机，是维护球团竖炉正常生产的关键设备。风机叶轮直径１４００ｍｍ，由１２片后倾机翼斜切的双层叶片成３０°角均匀焊接于弧形的前盘与平板形的后盘之间。在正常生产过程中，竖炉烟尘中含有大量的杂
Two Y4-73-11ON014D draft fans operating in the pellet shaft furnace of finished product plant of TISCO Ekou Iron Mine are the key equipment for maintaining the normal production of the pellet shaft furnace. The diameter of the fan impeller is 1400mm. The double-layer blades, which are beveled by 12 backward-sloping wings, are evenly welded to the arc-shaped front plate and the flat plate-shaped rear plate at an angle of 30 °. In the normal production process, the shaft furnace dust contains a lot of miscellaneous