Posted by Chief Balut on September 19, 2001 at 18:28:16:
In Reply to: Soot Blowers posted by John D on September 17, 2001 at 13:28:10:
Firing rate should be about 50%.Before actuating the first soot blower in sequence, increase the boiler forced draft 2 to 3 inches so that soot dislodged by soot blowers will be carried clear of the boiler and up into the uptake and smoke pipe. Restore the draft to the required setting after securing the last soot blower. Rotate steam soot blower elements at a rate of 10 to 15 seconds.
To ensure maximum efficiency of soot blowing operation, blow the economizer soot blowers initially after thoroughly draining the supply steam system of condensate. This will clear the economizer area of any soot that has collected since the last tube blowing operation.
Following this, the regular sequence of blowing all soot blowers, from the generating bank and upward, as outlined in your Boiler Technical Manual, should be followed.
The economizer soot blowers used in the initial phase of the sequence should be blown at the end of the operation.