What is the speed of the rotary kiln is more reasonable?

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Speed ​​with rotary kiln slope must have a good match between the relationship. In certain slope, the speed higher. Material filling ratio, the material roll and the faster

movement. Early, kiln speed is generally low, the material filling ratio larger , although the kiln was easy to operate, but the heating of materials and production

efficiency are negative. The early 1950s, the above situation, China's cement industry and promotion of the former Soviet Union had to learn "fast rotary kiln, long

flames and burning zone water cooling" three technical experience, reversing the then prevailing slow rotary kiln, short Huoji burning unreasonable conditions, and

because of the burning zone of the kiln cooling water spray barrel sections, help protect the kiln skin, improves the kiln heat intensity, longer lining life, and achieved

remarkable results. It is evident that the slope of the kiln is fixed conditions, depending on the production, to maintain the kiln at a relatively reasonable speed

operation, the kiln and the moving speed of the filling rate of the material and the calcination conditions at a reasonable match, the quality, high yield is very

important. In the past, kiln speed is slow, generally only 0.5 ~ 0.75r/min, later gradually increased to 1.0 ~ 1.5r/min. Suspension preheater, precalciner kiln appeared

particularly, due to decomposition of carbonate material into the kiln process to outside has been basically completed, kiln speed generally up 3r/min so.

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