Page 287 - Wastewater Solids Incineration Systems

Incinerator Operations 249

assist operations as well as to provide an operating history. Log sheets and a logbook
should be kept for records. These, together with charts from recorders, should be stored
for future use. Table 10.4 provides a typical log sheet for fluid bed incinerator opera-
tors. Below is outlined a list of typical operating duties.
Routinely,

• Monitor all indicators on the control board, including temperature, pressure,
flow, and oxygen levels.
• Respond to alarm conditions by making necessary adjustments.
• Make entries in logbook when important process changes are made, when
alarms occur, or when shutdowns occur.

Every other hour, record process readings on the log sheet.
Every shift,
• At the beginning of each shift, review highlights of the previous shift,
including any instructions from the supervisor, with the outgoing operator.
• Review the logbook for any instructions from the supervisor.
• Tour the operating equipment. Observe, listen to, and touch each piece of
equipment. The sound and feel of the equipment is a ready indicator of pos-
sible trouble such as impending bearing failure, defective drive belts or an
induced draft fan out of balance because of ash buildup on the wheel.
• Record all appropriate information, including instructions from the super-
visor, in the logbook.
• At the end of each shift, review highlights of the previous shift, including any
instructions from the supervisor, with the incoming operator.
Twice per week, monitor sand levels in the sand bed. Add or remove sand to the
sand bed as needed.
Every year,
• Shut down and cool the incinerator for annual inspection and maintenance.
• When the incinerator is cool, remove the auxiliary fuel injection nozzles, pres-
sure taps, and freeboard spray nozzles. In addition, close the fuel valves.
• Open the inspection doors to inspect the incinerator and all associated
equipment.
• Consider conducting an annual thermographic inspection of the exterior of
the incinerator and associated ductwork.