Keywords: furnace, heatingfurnace, burner, flame, gasfurnace, oilfurnace, combustion, industrialfurnace, lickpipe, stovepipe, oilburner, gas, naturalgas, refractorybrick, heattreatment,

Heating furnace burner flame adjustment

1, the flame state adjustment.

　　For oil burner can be atomized steam, primary air and secondary air volume adjustment; for gas burner can be adjusted by the amount of primary air and the amount of secondary air, in order to make its combustion is complete, flame stability.

　　Oil burner when the amount of air is not enough, the flame is long and dark red, dark hearth; on the contrary, if the amount of primary air is too large, the flame is short and white, slightly purple, the front end of the sparks, the hearth is completely transparent, and will produce a faint explosion or even the flame will be extinguished; the amount of air is appropriate, the flame is light orange, the hearth is relatively transparent; smoke is light gray, if the air is sufficient, the atomization of the steam is appropriate, if there are still Long flame and smoke, or often out of the flame, it belongs to the burner nozzle design defects.

　　When the air volume of the gas burner is insufficient, the flame is long and dark orange, and the hearth is dark with black smoke. With the increase in the amount of air, the flame becomes shorter, the front Rui blue, transparent hearth, smoke color becomes lighter.

　　As the combustion gas is lighter than air, the buoyancy effect makes it rise in the hearth. Chimney stalls can be used to regulate the flow through the chimney, that is, if you open the stall, the pressure inside the furnace drops, the air naturally blowing people inside the furnace, so that the rate of excess air increases, fuel consumption increases, and the thermal efficiency decreases; on the contrary, such as closing the stalls, the pressure inside the furnace increases, which can lead to flames from the furnace crevice, look at the fire holes, etc. Sprayed out. In order to maintain the normal pressure in the furnace to ensure safe production and improve thermal efficiency, it is necessary to properly adjust the degree of opening of the chimney stall.

Heating furnace burner

2, make every effort to avoid the flame to the refractory brick or lining furnace wall and lick tube.

　　Adjustment of furnace temperature, try to adjust the flame is short, otherwise, the flame to the furnace wall, will shorten the refractory bricks or the service life of the village. Flame lick tube, there is a localized phenomenon of overheating, not only will accelerate coking, but also serious damage to the outer surface of the furnace tube, unless there is a compelling need to heat the furnace overload operation.

3, in the periphery of the burner shall not appear burning (or afterburning).

　　Heating furnace in the actual load over the design capacity, this phenomenon sometimes occurs. If you continue to maintain the operation in this condition, the same will damage the refractory brick, lining, furnace tube and burner.

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