Gypsum rotary kiln is a thermal equipment mainly used for calcining gypsum. Its appearance is basically the same as that of cement and lime rotary kilns. Gypsum rotary kiln is an industrial equipment for preliminary processing and refining of gypsum ore. It can produce large yields. The gypsum it consumes plays a big role. Mainly used in many fields such as construction engineering, pharmacological treatment, mold processing, chemical industry, cement conditioning, etc. It has become an indispensable product in people's lives and therefore has deep value. In order to improve the yield and quality of calcination during the entire calcination process, it is necessary to find ways to reduce heat loss. This article introduces several methods to reduce heat loss in gypsum rotary kilns.
Gypsum rotary kiln, gypsum rotary kiln cost reduction and efficiency improvement, methods to reduce heat loss of gypsum rotary kiln
Effective method to reduce heat loss in gypsum rotary kiln
1. Spray insulation material
The direct way to reduce the heat loss of gypsum rotary kiln is to spray insulation material. The insulation material is subdivided into a slurry after adding water. Because the material is made from lightweight hollow microspheres, it retains heat very well. In addition, a certain amount of crack-resistant fiber chopped strands needs to be added before spraying. This method uses spray gun spraying, which is fast and convenient.
2. Use heat insulation boards for heat insulation
Silicon panels can be used for heat insulation in gypsum rotary kilns. Silicon panels are made of calcium and silicon materials by foaming. They are lightweight, insulated and can withstand temperatures over 1000 degrees. It is a new type of material that combines the three characteristics of light weight, heat insulation and fire resistance. . Building a layer between the refractory bricks of the gypsum rotary kiln and the steel plate of the cylinder can greatly reduce heat loss.
3. Choose high-quality pulverized coal
When choosing pulverized coal, choose coal with good quality, high calorific value and low loss. At the same time, in order to reduce the heat loss caused by complete combustion, the moisture and particle size of the coal should meet the process requirements of the gypsum rotary kiln.
4. Feed an appropriate amount of coal
The main reason for the inaccurate coal feeding amount is that the coal feeding system equipment is insensitive to adjust or the operators have a weak sense of responsibility and cannot appropriately increase or decrease the coal feeding amount according to the temperature changes in the kiln, resulting in incomplete combustion heat loss. During the use of the gypsum rotary kiln, the amount of coal added should be controlled, sealing should be strengthened, and management should be strengthened to control air leakage to a low level.