Composition and Adjustment of Rotary Kiln Burner

At present, the rotary kiln equipment is equipped with a burner, and the burner is composed of burner pipe, coal wind hose, primary air hose, burner moving trolley and fuel ignition burner.
The spray tube is the core of the burner, its performance is good or bad, basically determines the performance of the burner, so the name of the burner is also determined by the form and type of the burner. Such as for the kiln of the nozzle is a swirl-type four-channel jet of coal, known as the "rotary kiln rotary four-channel pulverized coal burner."
Burners are divided into single duct burners and multi-duct burners.
Single-channel burner is early jet burner for rotary kiln, single duct shows that only one coal duct, a high volume of air, not suitable for burning low-quality coal and anthracite.
Multi-duct burner refers to the center of the burner with a gas duct is greater than or equal to 3. If the three air duct (there is one coal duct, two net duct - the inner wind and outside wind) and four duct(one coal duct, three net ducts - the inner wind, outside wind and center wind), they are low air flow, high wind speed, rehearsing secondary air capacity. The wind speed, air volume can be adjusted, and can adapt to low-quality coal and anthracite, is the modern rotary kiln, especially the new dry kiln production line often use.
1. According to the flame color and firing temperature adjustment. Flame Color: Ignition control in deep red and light yellow; off the kiln when controlled in light yellow and white; under normal circumstances control in white or white shiny. Flame color can reflect the firing zone temperature level, the temperature is low, it should be appropriate to increase the wind; high temperature should reduce the wind.
2. According to the kiln situation adjustment. Normal kiln thickness of 200-300mm, the surface is flat, the length of the main kiln is 13-18m, the length of the kiln leather is 18-20m, each class must move the burner position, so that the vice kiln skin to produce a long dynamic repeat process, to prevent the knot.
3. According to the kiln material particles regulation. If the kiln particles> 40mm, burning with a sticky material, indicating the high temperature, should increase the wind, so that the flame elongated; on the contrary, increase the wind, to improve the firing temperature, but must pay attention to the burning belt Happening.
4. According to the kiln ring position adjustment, should meet the needs of the ring.
5. According to the shift need to observe the situation when the kiln adjustment.