Reasonble design and structure

There is a vertical preheater added at the kiln tail, which can transfer flue gas with about 900 degree directly to limestone. 

Occupy less area and save space

The length reduction can not only reduce heat loss, but also reduce covering area of equipment. 

High automatic level 

The whole gypsum production line holds advantages of high level automation and centralized control. 

Flexible heat source option 

External heating system can apply coal, wood or electricity as fuel; 

There exist difference between gypsum and natural gypsum. For example, gypsum holds high purity, much free water, even distribution and poor grading. It should be noticed that the sources of gypsum and natural gypsum are different. Gypsum mainly contains calcium carbonate and calcium sulfite. The state of impurities differ much. In addition, the process technology in desulfurization craft is different.
Gypsum rotary kiln is an initial equipment applied to process gypsum. It holds great output capacity. The process technology of gypsum and equipment are not the same with that of natural gypsum. For example, the value of gypsum produced in gypsum rotary kiln gets improved. The gypsum can be used for building project, pharmacological treatment, mold making, chemical industry, cement adjustment and other relevant industries. It has already become a necessary product in daily life.  
1.     There is a vertical preheater added at the kiln tail, which can transfer flue gas with about 900 degree directly to limestone. When the temperature of flue gas decreases to about 230 degree, flue gas will enter dust wiper through vent pipe. This method can effectively recycle waste heat.
2.     The length of gypsum rotary kiln is reduced to 14 to 15. The length reduction can not only reduce heat loss, but also reduce covering area of equipment. Meanwhile, the transmission power of kiln body is reduced.
3.     The whole gypsum production line holds advantages of high level automation and centralized control. Also, image display of each control point and supervision are set. Operation parameters can be recorded automatically and can be printed at any time.
4.     The design of kiln head is integrated, which can not only guarantee seal performance, but also can avoid casual emission of heat and dust.
5.     The discharge cooling system adopts vertical cooler to replace original monocular cooler, which avoids heat loss. The 1000-degree finished products which fall from kiln head will exchange heat with secondary heat. Then, gypsum can be cooled down to about 80 degrees. After returning to kiln, heat will become combustible gas. Exhaust gas will be reused.