The advantages of improved vertical dryer

At present, Concrete is one of the leading civil engineering materials. It is a kind of artificial sand materials that produced by cementing material, grain aggregate, water and some additive( if necessary ) . They make up based on a certain proportion, and formed after stirring, molding, and concrete during maintain processing. Concrete has the features of abundant raw materials, low price, and simple production process; as a result, its quantity demanded becomes large.Reducing structure: cement industry dry method production line produces a lot of waste heat gas with the temperature lower than 350℃. The reuse of this waste heat gas will contribute to reducing of energy and lowering cost. In the past, due to the defect of rotary dryer, waste heat gas cannot be reused effectively; however, through reducing structure, dynamic vertical dryer can broaden the diameter of preheating zone, lower wind speed, largen evaporation space and at the same time control the retention period via different Deck basin and Deck cone, so as to realize the Maximum Efficiency of residual-heat utilization.
Detection system: through online detection of material moisture and gas temperature of preheating zone, drying zone and arid zones by  drying detection system, it can balance and control material, wind, coal automatically, it also can adjust the  system parameter of heat capacity, air input, secondary hot air distribution material intercepting  and  retention period online, so that to achieve technology parameters dynamic optimum balance, and improve the utilization ration of heat energy of the system.
Main advantage of dry process is low heat consumption (Energy consumption for dry process kiln clinker production line with preheater is 3140～3768 J/Kg). The disadvantages are: raw material not easy admixture even, big dust emission in workshop and high power consumption. Wet process is with following advantages: easy to operate, easy to control the raw ingredients, superior quality of products, easy to convey slurry and low dust emission in workshop, with disadvantage of high heat consumption (Heat consumption of clinker production is generally 5234～6490 J/Kg).
For improving the efficiency of production line, hardware facility is the key point. Cement mill, cement rotary kiln and other auxiliary equipments must be reliable in quality. Cement production line shall be installed according to the actual landform with the site guidance from the experts. The requirement to raw material for cement mill is quite high, so that it is quite wrong to grind the raw material with the same mill, for which would reduce the service life of mill.
 

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