Multi-channel Burner (Pulverized Coal, Gas, Co-firing):
The multi-channel burner is a new-generation burner developed by our company based on fuel conditions and kiln characteristics. This product utilizes the principle of co-directional co-flow with large velocity differential. With its unique structure and reasonable process parameters, it ensures the mixing of fuel (pulverized coal, gas) with primary air and secondary air, achieving a stable flame while reducing nozzle temperature and extending nozzle service life. In practical applications, it features high combustion efficiency, high thermal intensity, good flame shape, and convenient adjustment, making it an energy-saving and environmentally friendly product for the new era.
Product Application Scope:
Widely used in various rotary kilns in industries such as building materials, metallurgy, mining, chemical engineering, and power generation.
Product Classification:
By fuel type, it can be classified into multi-channel pulverized coal burners, multi-channel gas burners, multi-channel coal/gas co-firing burners, multi-channel gas co-firing burners, etc.
Performance Features:
1. Burners with different flame diameters and different flame lengths can be designed according to user requirements to meet the needs of different working conditions.
2. Based on fuel properties, single-fuel, dual-fuel, and multi-fuel integrated burners can be individually designed for users.
3. Low cost and energy saving. The primary air volume is small, as low as 4~8%, and the entrained secondary hot air volume is large.
4. The flame shape is regular, complete, powerful, lively, and strong. The high-speed straight-flow outer air protects the kiln coating from damage, extends the service life of the kiln lining, and improves the kiln operation rate.
5. It is suitable for many types of coal, capable of burning both high-quality coal and low-quality coal. It is especially suitable for use in anthracite-rich regions and high-altitude oxygen-deficient regions, thereby reducing production costs.
6. Convenient adjustment. During operation, the outlet cross-sectional area can be adjusted by adjusting the valve opening and the adjusting screw rod to change the air volume and air velocity, allowing random adjustment of flame length, thickness, and intensity to meet kiln calcination requirements.
7. Reduces NOX and CO content. Due to the high degree of mixing between fuel and hot air, combustion is faster, reducing NOX and CO content in the kiln tail exhaust gas, which is beneficial for the environmental protection of exhaust ducts and electrostatic precipitators.
8. Long service life. The wear-prone parts where pulverized coal enters the burner are treated with metal-ceramic spray coating technology for wear resistance, increasing the wear resistance of key parts of the burner by 5 to 10 times compared to ordinary steel. The burner head and nozzle are made of high-temperature heat-resistant steel material, ensuring extended service life of the burner under high-temperature conditions.
9. The automatic control system can be designed in various modes including stage-fired, damper proportional control, variable-frequency proportional control, and touchscreen digital variable-frequency proportional control, for users to choose freely.
10. Functions such as flameout protection, program ignition, leak detection, over-temperature protection, and over-pressure protection can be configured according to user requirements.
11. Without the automatic control system, manual normal combustion is possible and extremely easy to adjust.
