Maximum Percent by Weight Less
Size, Microns (Diameter)
Than Particle Size
60 and Over
[_____]
40
[_____]
30
[_____]
20
[_____]
15
[_____]
10
[_____]
7.5
[_____]
1.0
[_____]
0 to 1.0
[_____]
Total
100.0
h.
Fly ash density for hopper volume design kilogram per cubic meter
pounds per cubic foot: [640] [40] [_____]
i.
Fly ash density for weight determination, kilogram per cubic meter
pounds per cubic foot: [1440] [90] [_____]
j.
Fly ash specific gravity:
[_____]
k.
Excess air (range):
[_____]
Contractor shall verify data in the field and shall design the dust
collector(s) to operate efficiently over the possible range of inlet gas
conditions.
1.12.3
Dust Collector Data
The following design criteria shall apply to [each of] the dust
collector(s). Applicable criteria shall be based on flow conditions at
maximum continuous rating.
a.
Minimum collection efficiency, percent [_____].
b.
Gas velocity range through dust collector, m/s fps[_____].
c.
Maximum pressure drop through dust collector at design condition
of flue gas flow and inlet dust loading, Pa inches watergage
[_____].
d.
Maximum hopper storage capacity, each hopper, hours [_____].
e.
Minimum hopper storage capacity, each hopper, cubic meter feet
[_____].
f.
Minimum hopper valley angle degrees from horizontal, [57] [_____].
SECTION 15861N
Page 18
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