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| The adjustment of the rotary kiln flame |
At present domestic most of precalcining kiln adopts three air duct or four duct burner, and the flame shape is by the wind flow and the rational matching to adjust the outflow of the wind. By precalcining kiln kiln raw CaC03 decomposition rate is as high as 90%, so the general outflow of the wind speed should be appropriate to improve, so that we can control the calcining zone is slightly a little bit long, for the high rate of silicate material presintering and small neat formation of clinker particles. If you want to shorten the flame thermal belt focus, some or coal quality is poorer, burning speed is slower, you can add more wind flow, reduce the outflow of the wind; If the coal quality is good or kiln's skin is too thin, kiln simplified surface temperature on the high side, need to be stretched flame, should increase the outflow of the wind, to reduce the wind flow. But the outflow of air volume is too large when the wind too ? easy to cause fire
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