Kiln ring formation after treatment should pay attention to several issues are the following: a hot burning, the firing temperature than normal high coal injection

tube stretch as far as possible to the kiln, the flame should be a long, slow turn to the kiln, cold lower firing temperature when burned, coal burner finally retreated

as far as possible, and the flame can not be long, kiln speed to strive forward. 2, burning circle should be protected good "kiln skin." 3, move coal burner, note the

flame formation can not sweep "kiln skin." 4, also known as front end ring ring kilns or coal laps. Results in the firing zone and cooling zone at the junction with the

bad due to wind or pulverized coal coarse granularity, ash and moisture, causing a black attempting long kiln firing zone to move, condense molten material in the

kiln the mouth so that the "kiln skin" thickening, not in time, will develop into a circle. Or because the coal falls clinker, clinker formation in the reductive combustion,

reduced to ferrous iron, the formation of low melting point of the mineral or coal fly ash in the aluminum oxide content increased liquid leaving the clinker clinker

melt increases, when faced with the secondary air into the kiln is cooled, it will gradually condensed ring formed at the mouth of the kiln. When the circle is not very

high, on the kiln calcination beneficial to extend the residence time of the material in the firing zone to make the material more fully compounds and reduce the free

calcium oxide content, but the ring can not be too high. The above article by Henan YuFeng Heavy Machinery  finishing release,

reproduced, please indicate the source!