The combustion systems of a Shaft Kiln are a unique design. Three rows of burner can be arranged symmetrically around the center of the kiln. Burners are installed in any two of these rows depending upon the required burning temperature and temperature profile. The burners are lances made of special steel through which air and fuel oil are introduced.
The burners have a water jacket and are supplied with a constant flow of cooling water. Each burner is connected by flexible hoses to ring manifolds supplying the burner air, cooling water and the burner fuel lines.
The burner injectors require cooling water to stay cool. The water passes through the burners with high speed and cools the burner tip which is exposed to extremely high temperatures.