The tapholes lead to one or more runners with slag skimmers. Through the runner molten iron flows into an iron ladle. The slag from the furnace is tapped from the slag notch, and it flows through runner into slag ladles or slag yard.

• 出铁口通向一条或多条装有撇渣器的铁水沟。铁水沿着铁水沟流进铁水包。高炉熔渣从渣口放出，顺着流渣沟流进渣罐，或流入渣