Development Trend of Pulverized Coal Burner of Rotary Kiln

Compared with rotary kiln, pulverized coal burner of rotary kiln are dwarfed both in size, weight and prices. But in fact, the performance of the rotary kiln burner plays an important role in the combustion system, which makes the coal burner get special attention from the cement industry at home and abroad. Choosing the pulverized coal burners with good performance has a significant effect on economic efficiency of enterprises growth.

In industrial kiln, the cement rotary kiln is the earliest equipment using coal as fuel, but the pulverized coal burners for cement rotary kiln was lack of in-depth research, therefore pulverized coal burner rotary kiln used for rotary kiln has been very poor single duct pulverized coal burner. Relative to the oil and gas coal is the cheapest fuel, especially after the oil crises of the 70s, the IFRF (International Flame Research Foundation) directly support for pulverized coal and petroleum coke burning and flame research work. With the strong support of IFRF, the pulverized coal burner of rotary kiln developed quickly from single duct to double channel, three channel, four channel and even five duct. Both theory and practice have proved that the more performance of the burner air duct is better, the structure is more complex, the heavier the weight, the more expensive the price.
For the real four duct pulverized coal burner, its primary air (including coal wind) has been reduced to less than 10%. In the case of a single fuel, the swirl type four air duct is the most advanced rotary kiln pulverized coal burner and was originally studied by the European cement machinery manufacturing company.
At present, there are some obvious development trends of the pulverized coal burner in the rotary kiln:
1) Development from the three duct to the four duct;
2) development from the split type to the swirl type;
3) development from the burning high quality coal to burn low quality coal and waste fuel;
As a mechanical equipment design and production, processing manufacturers, Zhengzhou Mining Machinery Co., Ltd is accumulated for many years coal burner for rotary kiln design experience on the basis of offering a variety of calcining process line.
After the constant, ZK design and produced swirl four channel LY series of pulverized coal burner, welcome to consult.