1. Burner is the core equipment which provides energy motivation for rotary kiln.
2. The burning steps include:mixing, ignition,chemical reactivity,heat propagation.
3. After years of exploration and practice,according to different types of kilns,different characteristics of coal powder and different technological conditions ,we have developed the new type and high efficient four-channel pulverized coal burner and multichannel coal burner.
4.It's unique structure and reasonable technological parameter guarantee the intensive mixing of the coal powder with primary air and secondary air.
5. It has been proved that it is with high combustion efficiency , high thermal strength,good flame shape.
6. The burner is widely used in the different types of rotary kilns in building materials,metallurgy,mine, chemical industry, electricity ,etc.
1.Reduce cost and energy saving. The volume of primary air flow is small, which can be 4-8% at least, at the same time, the increase of secondary hot air volume accelerates the heat transfer inside the cooling machine, improves the thermal recovery of clinker, and the full burning of coal, thus achieving the energy saving and reducing the costs.
2.Improve clinker quality, increase corresponding production. Owing to the increase of secondary hot air and the shorten of kiln cooling zone, the clinker gets more rapid and full cooling, achieving the goal of fast burning rapid cooling, which improves the quality of clinker. The yield also can be improved due to the improvement of burning efficiency and the acceleration of clinker cooling.
3. Flame shape is complete, strong, lively and powerful. High speed DC external wind can protect the kiln skin from loss, extending the service life of the kiln lining and improving the operation rate of the kiln.
4.Various kinds of coals are available. Both qualified coal andlow-quality coal can be used. It is particularly suitable for the high-altitude hypoxic regions and rich anthracite regions. The effect will be better, thus reducing production costs.
5.Easy to adjust. When it is running, the outlet cross-sectional area can be adjusted by adjusting the valve opening and lead screw to randomly change the amount of wind velocity, flame length, thickness, strength to meet the needs of the kiln calcination conditions.
6. Reduce the content of NOx and CO. Because of the full mix of fuel and hot air, fuel is more quick and safe, reducing the content of NOx and CO in exhaust gas, which is conducive to the safe running of the gas pipeline and electrical dust collector and environmental protection .
7. Long service life. Nozzle adopts the newly developed special material and it can be oxidation resistance at above 1200 ℃. It has wear-resisting protection layer at the entrance of pulverized coal , in case of the erosion of pulverized coal, decreasing maintenance.