Hot blast stove operation issues
Thread Content
Scalings tend to form at the air supply inlet of the hot blast stove, and it needs to be cleaned once every month or so. Is this due to improper adjustment of the air supply and distribution when the hot blast stove is operated under increased load? How to adjust it properly? Please explain the structure of the hot air furnace. Thank you
Scarring – is it carbon coking? It’s possible that the wind velocity at the inlet is high, resulting in excessive combustion and thus high temperatures in the fuel layer, which leads to coking
How can one determine whether the coal is burning fully or incompletely in that hot air furnace, based on the quality of the ash produced? Scarring is probably caused by the excessive temperature in the hot air furnace, which exceeds the ash melting point of the coal. Could increasing the air supply help?
Your combustion is excessive; increasing the air supply is equivalent to adding more fuel for combustion, which leads to more complete burning. It seems that you need to adjust both the fuel amount and the air volume. You can start by reducing the air volume. Normal coal ash is somewhat black, with a bit of carbon present in it. It appears that your ash is yellowish in color, indicating coking
Isn’t the air distribution in the hot blast stove used for cooling?
What type and structure of hot blast stove?