401 KAR 61:070.
Existing ferroalloy production facilities.
RELATES TO: KRS
AND CONFORMITY: KRS 224.10-100 requires the Environmental and Public Protection
Cabinet to prescribe administrative regulations for the prevention, abatement,
and control of air pollution. This administrative regulation provides for the
control of emissions from existing ferroalloy production facilities.
Applicability. The provisions of this administrative regulation are applicable
to the following affected facilities commenced before the classification date
defined below: electric submerged arc furnaces which produce silicon metal,
ferrosilicon, calcium silicon, silicomanganese zirconium, ferrochrome silicon,
silvery iron, high-carbon ferrochrome, charge chrome, standard ferromanganese,
silicomanganese, ferromanganese silicon, or calcium carbide; and dust-handling
Definitions. As used in this administrative regulation all terms not defined
herein shall have the meaning given them in 401 KAR 50:010.
submerged arc furnace" means any furnace wherein electrical energy is
converted to heat energy by transmission of current between electrodes
partially submerged in the furnace charge.
charge" means any material introduced into the electric submerged arc
furnace and may consist of, but is not limited to: ores, slag, carbonaceous
material, and limestone.
change" means any change in the composition of the furnace charge that
would cause the electric submerged arc furnace to become subject to a different
mass standard applicable under Section 3 of this administrative regulation.
means the more or less completely fused and vitrified matter separated during
the reduction of metal from its ore.
"Tapping" means the removal of slag or product from the electric
submerged arc furnace under normal operating conditions such as removal of
metal under normal pressure and movement by gravity down the spout into the
period" means the time duration from initiation of the process of opening
the tap hole until plugging of the tap hole is complete.
cycle" means the time period from completion of a furnace product tap to
the completion of the next consecutive product tap.
station" means that general area where molten product or slag is removed
from the electric submerged arc furnace.
tap" means any tap in which an evolution of gas forces or projects jets of
flame or metal sparks beyond the ladle, runner or collection hood.
power input" means the resistive electrical power consumption of an
electric submerged arc furnace as measured in kilowatts.
"Dust-handling equipment" means any equipment used to handle
particulate matter collected by the air pollution control device (and located
at or near such device) serving any electric submerged arc furnace subject to
this administrative regulation.
device" means the air pollution control equipment used to remove
particulate matter generated by an electric submerged arc furnace from an
effluent gas stream.
system" means the equipment (including hoods, ducts, fans, dampers, etc.)
used to capture or transport particulate matter generated by an affected
electric submerged arc furnace to the control device.
ferromanganese" means that alloy as defined by ASTM A-99-66(71). (ASTM
designations are filed by reference in 401 KAR 50:015.)
means that alloy as defined by ASTM A-483-64(74).
carbide" means material containing seventy (70) to eighty-five (85)
percent calcium carbide by weight.
"High-carbon ferrochrome" means that alloy as defined by ASTM A-101-73
grades HC1 through HC6.
chrome" means that alloy containing fifty-two (52) to seventy (70) percent
by weight chromium, five (5) to eight (8) percent by weight carbon, and three
(3) to six (6) percent by weight silicon.
iron" means any ferrosilicon, as defined by ASTM A-100-69(74), which
contains less than thirty (30) percent silicon.
"Ferrochrome silicon" means that alloy as defined by ASTM
"Silicomanganese zirconium" means that alloy containing sixty (60) to
sixty-five (65) percent by weight silicon, one and five-tenths (1.5) to two and
five-tenths (2.5) percent by weight calcium, five (5) to seven (7) percent by
weight zirconium, 0.75 to 1.25 percent by weight aluminum, five (5) to seven
(7) percent by weight manganese, and two (2) to three (3) percent by weight
silicon" means that alloy as defined by ASTM A-495-64(70).
"Ferrosilicon" means that alloy as defined by ASTM A-100-69(74)
grades A, B, C, D, and E which contains fifty (50) or more percent by weight
metal" means any silicon alloy containing more than ninety-six (96)
percent silicon by weight.
"Ferromanganese silicon" means that alloy containing sixty-three (63)
to sixty-six (66) percent by weight manganese, twenty-eight (28) to thirty-two
(32) percent by weight silicon, and a maximum of 0.08 percent by weight carbon.
"Classification date" means October 21, 1974.
"Concentrated discharge" means that the outlet from a control device
consists of either stacks (one (1) or more) or openings on the device's top or
side which has (have) a total area less than five (5) percent of the
corresponding top or side and which has (have) a length of not more than twice
discharge" means that the outlet from a control device consists of
opening(s) on the device's top or side which has (have) a total area exceeding
five (5) percent of the corresponding top or side or which has (have) a length
more than twice the width. A control device may have both dispersed and
Section 3. Standard
for Particulate Matter. (1) On and after the date on which the performance test
required to be conducted by 401 KAR 61:005 is completed, no owner or operator
subject to the provisions of this administrative regulation shall cause to be
discharged into the atmosphere from any electric submerged arc furnace any
(a) Exit from a
control device and exhibit an opacity equal to or greater than three (3) percent
where control device has dispersed discharge.
(b) Exit from any
building opening and exhibit an opacity equal to or greater than:
1. Fifteen (15)
percent for these gases which are the result of routine smelting/melting
operations where no auxiliary operations will occur;
2. Twenty (20)
percent for those gases which are from a furnace associated with metallurgical
treatment while no auxiliary operations are occurring;
3. Twenty-five (25)
percent for those gases which are the result of tapping operations;
4. Forty (40)
percent for those gases which occur only during a metallurgical treatment; or
5. Forty (40)
percent for those gases which occur during the pouring of metal from slag
ladles into castbeds or molds.
(2) On and after the
date on which the performance test required to be conducted by 401 KAR 61:005
is completed, no owner or operator subject to the provisions of this
administrative regulation shall cause to be discharged into the atmosphere from
any dust-handling equipment any gases which exhibit fifteen (15) percent
opacity or greater.
Section 4. Test
Methods and Procedures. The Reference Method 9 in Appendix A of 40 CFR 60,
filed by reference in 401 KAR 50:015, except as provided in 401 KAR 50:045,
shall be used to determine compliance with the standards prescribed in Section
3 of this administrative regulation. (5 Ky.R. 486; Am. 1053; eff. 6-6-1979; TAm