1, the fuel combustion is not complete: This is the main reason for black smoke caused by the boiler, when the boiler is running, the fuel combustion in addition to produce carbon dioxide, sulfur dioxide, water vapor, oxygen, nitrogen, etc., will produce carbon monoxide, hydrogen, Methane and other flammable gases, these flammable gases have been burned to produce black smoke.The incomplete combustion of fuel not only causes the biomass boiler to appear black smoke phenomenon, but also increases the fuel consumption and increases the operation cost of the enterprise.
2, the lack of air, with poor air, the furnace temperature is too low: the boiler will generally be equipped with air preheater, but when the air preheater serious air leakage, the amount of hot air can not meet the burning needs, there will be black smoke The phenomenon,
3, poor fuel atomization, and secondary combustion flue: especially when burning high viscosity residue, the atomization effect is not ideal, it will make the boiler smoke black smoke.
4, Automatic fuel boiler suddenly turn off during the use of the situation: the performance of the furnace was significantly increased negative pressure from the fire hole can not see the flame, steam pressure and steam temperature dropped, the steam flow decreased sharply; water level instantaneous decline, Then rise sharply.
solution
1, to ensure that the boiler operation in the oil supply, return oil pressure and fuel viscosity indicators correct;
2, timely and properly into the root of the wind, adjust a good, the second wind, so that the right oil mist and air mixture to prevent local hypoxia;
3, try to improve the temperature and furnace temperature;
4, improve the quality of fuel atomization;
5, check the gun before ignition, to ensure the normal use.
