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VII, Initial Refractory Curing Instructions C firrtyl /Vti Jo/z-
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The thermal oxidizer should be heated up according to the following Time-Temperature Schedule, after a minimum of one day of Air Curing.1 --
TIME-HOURS
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L&Y2; 0-1
1-7
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7-8
8-9
9-10
10-11
11-12
12-13
13-14
14-15
15-16
16-17
.17-18
18-19
19-20
20-21
21-31 Cio i-U*-}
31-32
32-33
33-34
34-35
35-36
36-37
Raise to 300F Hold at 300F Raise to 350F Raise to 400F Raise to 450F Raise to 500F Raise to 550F Raise to 600F Raise to 650F Raise to 700F Raise to 750F Raise to 800F Raise to 850F Raise to 900F
Raise to 950Amh ySn*.Raise to
1000`F Hold at 1000F ^ Raise to 1200F /Oft) Raise to 1400F Raise to 1600F Raise to 1800F Raise to 2000F Raise to 2200F
NOTE: Once the curing is started, the thermal oxidizer should not be turned off until curing is complete.
If the unit has been shut down for any length of time, the following
schedule should be followed to prevent excessive damage to the
refractory.
SL 002027
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Of 14th Judicial District Court
No. 91-1145
(1) Extended shutdown one month or longer: Complete cure out in compliance with initial curing cycle. {ftp-
(2) One week to one month or longep: Heat system with gas control
valve in low fire positiorf^or 24 hours. Raise temperature per
Cold Start-up Procedure that follows. C
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^(3)^Maxiinum shutdown one week>/^Heat system for one hd*^ with gas
control valve in low fre position. Raise temperature for Cold
Start-up Procedure that follows.
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SL 002028
VIII. Refractory Start-Up Schedule
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Cold Start-Up After Initial Cure-Out TIME-HOURS
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OXIDIZER TEMPERATURES
0-1 1-4 C*
4-5 5-6 6-7 , 7-8 8-9 9-10 10-11 11-12 12-13 /
2>ooQf^ Raise to 500F Hold at 500F Raise to 600F Raise to 800 F,Raise to 1000F SThl Raise to 1200F Raise to 1400F
' Raise to 1600F Raise to 1800F Raise to 2000F Raise to 2200F
NOTE; If the unit has been shutdown in excess of one month, the initial curing schedule should be followed.
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Hot Start-Up After Temporary Shutdown
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Over a period of 30 minutes, gradually increase the temperature to
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1000F. Hold this temperature for one (1) hour. Gradually increase
the temperature to 2200F at a rate of 200F per hour.
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SL 002029