Why Is There Preheat System Fault of Clinker Rotary Kiln?

The rotary kiln is widely used in the fields of building materials, metallurgy, chemical industry, environmental protection, etc. It can be divided into cement rotary kiln, metallurgy chemical rotary kiln and lime rotary kiln according to the different materials processed. Fote clineker rotary kiln for sale supply cement rotary kiln, lime kiln, active lime rotary kiln and other rotary kilns with reasonable rotary kiln price.

Rotary Kiln

In the work process of clinker rotary kiln, the preheater jams would happen, Follwing is the reason analyzed by lime rotary kiln technical engineers of Henan Fote Heavy Machinery Co., Ltd.:

1. Rotary kiln preheater easily occur the crust. The sediment at the entrance of rotary kiln and in the preheater contains high sulfuric acid alkali and alkali chloride, sulfuric acid alkali in the kiln gas melt condensation and separation, formation material combined with burning material and kiln ash. This thin film is formed on the melt in the slurry particles, worsen the flow and cause blockage in the preheater.

2. The bottom of rotary kiln preheater and preheater internal form base circle. When the raw material and fuel in the preheater with higher sulfur, alkali, the temperature of 400-600 ℃, SO2 will be converted to SO3. Generate CaSO4 after SO3 absorbed by raw powder, Under 860 ℃ CaSO4 meltdown and easily to form a base circle at the bottom and inside preheater with powder.

3. Rotary kiln maintenance: Sealing place, manhole, cold wind gate air leakage, preheater lining erosion and flap valves too tight (Inflexible) also easy to cause preheating system jam.

4. Operational aspects: Uneven feeding, raw material composition fluctuations, improper flame formation, reducing atmosphere in furnace, incomplete combustion, and so on easy to cause preheating system jam.

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