The invention discloses a boiler slagging
condition monitoring method based on the outlet temperature of a
combustion chamber. The monitoring method includes the steps of 1, detecting the outlet temperature of the
combustion chamber; 2, calculating the temperature change before and after
soot blowing and the temperature rising rate after
soot blowing of an outlet of the
combustion chamber according to detection in the step 1; and 3, judging that combusted
coal tends to form
slag when the temperature change is greater than 50 DEG C and the temperature rising rate is greater than 5 DEG / h, and judging that the combusted
coal is not suitable for long-term combustion and adjusting the
coal type when the temperature change is greater than 80 DEG C and the temperature rising rate is greater than 10 DEG / h. The invention further provides a boiler slagging condition controlling method based on the outlet temperature of the
combustion chamber. According to the monitoring method and the controlling method, scientific use of a
soot blower can be effectively guided, the outlet temperature of the
combustion chamber can be continuously recorded, the temperature change before and after soot blowing and the temperature rising rate after soot blowing of the
combustion chamber can be calculated, the use time of the
soot blower can be further obtained, and the cleanliness degree of a water-cooled wall and the slagging characteristics of the coal type can be reflected.