Wet Bottom Furnace
A wet-bottom furnace or wet-bottom boiler is boiler that contains a wet bottom furnace. It is a kind of boiler used for pulverised fuel firing. In wet bottom boiler the bottom ash is kept in a molten state and tapped off as a liquid. Wet bottom boiler slag is a term that describes the molten condition of the ash as it is drawn from the bottom of the slag-tap or cyclone furnaces. An advantage is the fact that the end product in this process has a higher value compared to that of a dry bottom boiler. Wet bottom boilers are preferred for low volatile coals that produce a lot of ash. But it has higher investment costs and higher maintenance costs, so it is built less often.
Read more about Wet Bottom Furnace: Wet-bottom Boilers, Steps in The Process
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