Main function of vertical preheater in the lime rotary kiln
Date:2019-11-12 10:59:01
Author:admin
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202
The vertical preheater is an important equipment in the lime rotary kiln production line. The preheater is the high temperature generated in the rotary kiln to preheat the material, which can improve the production capacity of the lime rotary kiln and reduce the energy consumption. What is the main function of vertical preheater in the lime rotary kiln?
The structure of the preheater is mainly divided into the upper feeding system, the preheating chamber, the pushing device, the hydraulic system, the dropping funnel and the frame.
The preheater is an important part of the lime rotary kiln. The main function is to uniformly preheat the surface of the material fed into the lime rotary kiln to about 800 °C. During the preheating process, 30% of CaCO3 is decomposed in the preheater, and then pushed into the preheater by the hydraulic push rod for calcination. Such a calcination process not only shortens the calcination time of limestone in the kiln, but also obtains lime with higher activity. From a theoretical concept, limestone is usually subjected to four stages of preheating, decomposition, firing and cooling in different containers.
The preheater is a device outside the kiln of the lime rotary kiln, and the cooling is another device outside the kiln head. The preheater is a heat exchange device, which causes the temperature of the exhaust gas to drop rapidly, and the temperature of the raw meal powder rises rapidly. This will reduce heat consumption, improve production quality, save energy, and comprehensive utilization.
ZK Corp is a professional manufacturer of lime rotary kiln equipment. Based on the absorption and reference of the same type of rotary kiln at home and abroad. The developed lime rotary kiln has the characteristics of high raw material utilization rate, complete calcination, uniform quality, good quality, large production capacity, high operation rate, energy saving and environmental protection, easy operation and long life of the whole machine. It also conforms to the national industrial policy of environmental protection, energy conservation and consumption reduction.
