Conditions that need to be met for hot blast stove combustion

Combustion materials and air are fully mixed

In order to ensure that coal fuel and air can be fully mixed and in good contact with them, this can be achieved by reducing the particle size of coal, increasing the reaction surface area of coal, pressurizing combustion, adjusting air flow movement, etc., and can be equipped with pulverized coal equipment to reduce coal to finer particles. The particles enter the combustion chamber and are fully burned in an instant, which is more energy-saving.

High temperature environment

High temperature can significantly improve coal combustion, and is conducive to accelerating combustion reactions and ignition stability, reducing chemical and mechanical incomplete combustion losses. In addition, coal can only burn when it reaches the specified ignition point. The hot blast stove vault and internal combustion chamber are designed around the principle of heat non-diffusion, and the closed structure guarantees high-temperature environments.

Plenty of oxygen

In order to completely burn the combustible components of coal and convert them into CO2/SO2/H2O gas products, sufficient air must be ensured. Without oxygen, coal cannot burn at all, so the supply of air in the hot blast furnace must be ensured. The turbine fan in the supporting facilities of the hot blast stove meets this condition, blowing a large amount of air into the furnace to provide a large amount of oxygen for coal combustion.

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