Page 308 - Wastewater Solids Incineration Systems

Incinerator Maintenance 269

last two teeth (or spacer block) should be created to allow for thermal expansion. If
the gap is insufficient, some metal can be ground off the last tooth (or spacer).

1.8.10 Maintenance of Outside Ancillary Equipment
While both the MHF and fluid bed incinerator portions of this chapter focus exclu-
sively on the inner workings of the incinerator, there are several ancillary items that
must also be properly maintained. These external components consist of, but are not
limited to, the following:
• Burner trains and management systems.

• Wastewater solids conveyance, feed, and weighing systems.
• Fans (inducted drafts, forced air, cooling air, etc.).
• Monitoring/analyzing equipment (THC, carbon monoxide, oxygen, moisture,
etc.).
• Ductwork, piping, stacks, and instrumentation and controls.

1.8.11 Recordkeeping
The following information should be collected when an incinerator is first assembled:
• Construction drawings showing typical in-hearths and out-hearths; the loca-
tion of burners, piping, and access doors, etc.; the emergency relief stack and
damper; center shaft, rabble arms and rabble teeth; etc.
• Manufacturer drawings.
• Information concerning the manufacturer, type, or trade name of castable and
firebrick and brick part numbers (standard-sized or special-shaped).
• Information concerning the rabble arms and teeth, with assembly drawings.
• A listing of all spare parts.
• Manufacturer’s operating and maintenance manuals.
• Changes from the original design, problems during construction or startup,
and information regarding the company that performed the work.

When repairs or modifications are made after the incinerator is placed into ser-
vice, the following information should be recorded.
• The name of the company that performed the work;
• A detailed description of work and the dates the work was performed;