Rotary kiln cement production speed with the development of technology and cement equipment updates continue to develop, from the earliest to the semi-wet process kilns kiln until now precalciner kiln speed has also been a fundamental change. As the rapid development of technology, the design of rotary kiln speed is now the highest mostly 4.0r/min, normal operation kiln speed more in 3.0-3.5r/min, in fact, many of the kiln has been in 3.5r/min. From the recently commissioned precalciner kiln production line of view, now the biggest kiln speed has reached 4.3r/min, it can be said kiln speed to accelerate the trend. Rotary kiln speed to enhance the basic principles: 1. Kiln is new, kiln precalciner kiln can provide a sufficiently high rate of pre-calciner. 2 new cooling machine adopts thick layer high enough to be able to provide secondary air moderate amount of wind. 3. The use of new high-thrust multi-channel coal burner. Rotary kiln production was designed to play to maximize the device's ability to improve the yield per unit of time, the most direct way to increase production is to reduce the clinker burning time, which is shorter residence time of the material in the kiln, to make cooked firing material to reduce the time, the operation must accelerate the speed of the rotary kiln. Then you can shorten the residence time in the kiln, rotary kiln only improve speed, weak kiln material filling rate unchanged, then the kiln clinker production will increase with the kiln speed proportional. The above article by Henan YuFeng Heavy Machinery Finishing release. Please indicate the source!