SOOT BLOWER Shut down checks
In addition to the annual checks the following checks are to be carried out are,
Check whether the boiler tubes have eroded. If thickness is reduced to a very low valve, inform the manufacturer.
Check the gap between the lance tube and the boiler tube. The gap should keep a minimum of 100mm. For the blowers located in second pass the gap between the lance tube and the coil edge is to be checked and a minimum of 100mm distance should be maintained.
Paint the blowers once in two years.
Periodical checks determined by installation conditions
- a) Check motor starter cabinets and cabinets should be kept securely closed and gaskets should be in place to prevent contamination. If cabinets have been opened for servicing, carefully blow the surface free of dust or foreign material with tight air pressure from a dry, clean air supply. Position the gasket and secure cover.
- b) Packing on the feed tube in the travelling carriage and the valve steam in the operating head should be tightened. When packing glands are full and leakage is still present, the units should be marked for repacking after the blowing medium is turned off.
- c) Scraper plates should be inspected for wear as a regular maintenance procedure. Immediately following start up, routine examination should begin and should be scheduled for two months intervals. After completing several bimonthly checks the frequency of these inspections may be altered by increasing or decreasing the time interval between check.