引言某炼铁厂有四台炼铁高炉,其中1#、2#、3#高炉的公称容量分别为250m3、300m3、300m3;每台高炉有三个烟气捕集点:出铁捕集点、出渣捕集点和铁水罐捕集点;这三台高炉的烟气除尘工艺系统共用一台Y4—73 NO. 29.5F风机除尘,该风机由一台液力耦合器拖动,全年连续运转。液力耦合器 Introduction An ironworks has four iron-making blast furnaces, of which the nominal capacities of 1 #, 2 # and 3 # blast furnaces are 250m3, 300m3 and 300m3 respectively. Each blast furnace has three smoke collection points: tapping point, Slag collection point and the iron pit collection point; the three blast furnace flue gas dust removal process system share a Y4-73 NO. 29.5F fan dust removal, the fan dragged by a hydraulic coupler throughout the year Run. Hydraulic Coupler