I
Startup for the hydrator is considered to be when quicklime and water first
come into contact in the premixer, usually a pug mill.
Material is fed into
the system at a slow rate at first allowing process equipment to gradually heat
up to a normal operating temperature of 107 to 12l o C (225 to 250
0
F).
After·
startup, equipment is monitored, tested and adjustments are made to assure that
all
operations are functioning properly.
Sources contacted stated that the
hydrator system, barring mechanical failures, could achieve its design produc-
tion rate within a week of startup.
Air pollution control equipment are also
monitored carefully during the initial days of startup.
13l