Introduction of coal and gas mixed combustion burner
Outstanding advantages
1. The flame is stable and has no fluctuations, and it is not easy to sweep the kiln lining, which can prolong the service life of the kiln lining;
2. The overall design is effective. Natural gas, pulverized coal and primary air and secondary air are well mixed and sufficiently ignited, which can increase the compressive strength of the kiln's heating and reduce the proportion of primary air, thereby increasing the kiln's production and reducing heat consumption. ；
3. The flame holding hood produces a bowl-shaped effect and the flame has no strong vortex, which prevents temperature valleys, makes the flame temperature spread out and symmetrically effective, and can reasonably maintain the kiln head and rain shield.
4. Because coal and air are more adequately mixed and ignited more quickly and thoroughly, the water content of CO and NOX in the organic waste gas of the kiln tail is reduced, which is beneficial to the safe operation of machinery and equipment and the maintenance of environmental protection production and manufacturing;
5. The nozzle is made of materials, heat-resistant and easy to disassemble and replace;
6. Free online adjustment is convenient, you can adjust the cross section of each air duct inlet and outlet in actual operation, and then change the spray rate, which exceeds the purpose of adjusting the appearance and height of the flame.
Principle
The principle of the gas-mixed burner is that the material is sprayed out from the fuel safety channel at a certain outer diffusion angle, and the combustion wind from the outer neighbor sends a very high angular momentum and moment of momentum. The swirling wind on the inner side and the sprayed The natural material mixing moves forward in a spiral at high speed, and it meets the axial-flow wind bundle that is shot out quickly; the insertion of the axial-flow wind bundle further enhances the mixing of the natural material and the wind (including the surrounding secondary air), and The emission level of the flame can be adjusted, and the length and size of the flame can be adjusted to exceed the necessary flame shape; the function of the management center wind is to promote the ignition of a small amount of fuel and CO in a part of the management center, so that the ignition is more sufficient and the flow is stabilized. The effect of, finally produces a stable flame to ignite.
Performance parameter
For different kiln types, different fuel characteristics and different processing technology standards, the mixed-burning burners are all custom-designed and manufactured.