(1) Circulating fan. When the circulating fan fails to work, the combustor and the circulating air duct valve in this area should be closed quickly. At the same time, when the medium temperature is greater than 250 ℃, the fan impeller should be rotated
by manual turning to avoid damage to the fan. In addition, because the area can not work, so the curing furnace should take speed down operation or adjust the setting temperature of each area to ensure the curing quality of the coating.
(2) Make up fresh air fan. When the fresh air fan fails to work, the concentration of combustible gas in the curing furnace will increase. At this time, the coating head of the coating machine should be quickly opened to stop coating. The coating operation can only be carried out after the fresh air fan is restored to work. At the same time, in order to protect the fresh air heat exchanger, the burner of the incinerator should be shut down quickly or the set temperature of the incinerator should be lowered.
(3) Exhaust fan. When the exhaust gas fan fails to work, the furnace pressure of the curing furnace will change to positive pressure, and the furnace gas will overflow to the workshop to pollute the operating environment. At this time, the make-up fan, incinerator burner and incinerator exhaust valve should be closed quickly to avoid the waste gas preheater and make-up air preheater being burned by the high temperature flue gas of the incinerator. Jimian road of proactive energy (7)
(4) Smoke exhaust fan. When the exhaust fan fails to work, the furnace pressure of the incinerator will change to positive pressure, and the furnace pressure of the curing furnace will also rise due to certain influence. At this time, if the fault can be handled in a short time, the temperature of the curing furnace and the unit speed should be reduced, and the temperature of the curing furnace should be reduced on the premise of ensuring that the furnace pressure of the curing furnace is negative. At this time, the incinerator will continue to operate to ensure the incineration of waste gas. If it can't be handled in a short time, it's better to stop production and resume production after the accident is handled.