Lined Cupolas

APPROXIMATE MELTING RATES IN TONS PER HOUR FOR
WHITING LINED CUPOLAS (Uninterrupted Operation)
Cupola
Size
Shell Diam. Lower
Lining
Thick-
ness**
Diam.
Inside
Lining
Area
Inside
Lining
Sq. In.
Theoretical
Air Flow
thru
Tuyeres
SCFM
Recommended
Blower Cap'y.
METAL TO COKE RATIO (Carbon Content of Coke 90%)
6:1 7:1 8:1 9:1 10:1 11:1 12:1
Volume
ICFM
Pressure
oz./in.2*
333#/ton 286#/ton 250#/ton 222#/ton 200#/ton 182#/ton 167#/ton
99ft3/#c 107ft3/#c 112ft3/#c 118ft3/#c 123ft3/#c 128ft3/#c 132ft3/#c
0 27" 4½" 18" 254 573 640 8 1.1 1.3 1.4 ----- ----- ----- -----
1 32" 4½" 23" 415 937 1040 16 1.9 2.0 2.2 2.4 ----- ----- -----
2 36" 4½" 27" 573 1293 1430 20 2.6 2.8 3.1 3.3 ----- ----- -----
41" 7" 27" 573 1293 1430 20 2.6 2.8 3.1 3.3 ----- ----- -----
3 46" 7" 32" 804 1815 2000 24 3.7 4.0 4.3 4.6 4.9 ----- -----
51" 7" 37" 1075 2426 2700 24 4.9 5.3 5.8 6.2 6.6 ----- -----
4 56" 7" 42" 1385 3126 3450 24 6.3 6.8 7.4 7.9 8.5 9.0 -----
5 63" 9" 45" 1590 3589 4000 28 7.3 7.8 8.5 9.1 9.7 10.3 -----
6 66" 9" 48" 1810 4085 4500 32 8.3 8.9 9.7 10.4 11.1 11.7 12.4
7 72" 9" 54" 2290 5170 5750 32 10.4 11.3 12.3 13.1 14.0 14.8 15.7
8 78" 9" 60" 2827 6380 7100 32 12.9 13.9 15.2 16.2 17.3 18.3 19.3
9 84" 9" 66" 3421 7720 8600 36 15.6 16.8 18.4 19.6 20.9 22.1 23.4
90" 9" 72" 4072 9190 10200 36 18.6 20.0 21.9 23.4 24.9 26.3 27.8
10 96" 9" 78" 4778 10790 11900 36 21.8 23.5 25.7 27.4 29.2 30.9 32.7
11 102" 12" 78" 4778 10790 11900 36 21.8 23.5 25.7 27.4 29.2 30.9 32.7
12 108" 12" 84" 5542 12510 13900 36 25.3 27.3 29.8 31.8 33.9 35.8 37.9

* Additional pressure capacity may be required when auxiliary equipment is added to the blast system or when ductwork is long or complicated.
** For long heats use heavier lining or use water cooling.

 

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