Current through Register Vol. 50, No. 9, March 1, 2024
NECESSITY, FUNCTION, 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.
Section 1.
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
equipment.
Section 2. Definitions.
As used in this administrative regulation all terms not defined herein shall
have the meaning given them in
401 KAR
50:010.
(1) "Electric
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.
(2) "Furnace 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.
(3) "Product 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.
(4) "Slag" means the more or less completely
fused and vitrified matter separated during the reduction of metal from its
ore.
(5) "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 ladle.
(6) "Tapping period" means the time duration
from initiation of the process of opening the tap hole until plugging of the
tap hole is complete.
(7) "Furnace
cycle" means the time period from completion of a furnace product tap to the
completion of the next consecutive product tap.
(8) "Tapping station" means that general area
where molten product or slag is removed from the electric submerged arc
furnace.
(9) "Blowing 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.
(10) "Furnace power input" means the
resistive electrical power consumption of an electric submerged arc furnace as
measured in kilowatts.
(11)
"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.
(12)
"Control device" means the air pollution control equipment used to remove
particulate matter generated by an electric submerged arc furnace from an
effluent gas stream.
(13) "Capture
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.
(14) "Standard ferromanganese" means that
alloy as defined by ASTM A-99-66(71). (ASTM designations are filed by reference
in
401 KAR
50:015.)
(15) "Silicomanganese" means that alloy as
defined by ASTM A-483-64(74).
(16)
"Calcium carbide" means material containing seventy (70) to eighty-five (85)
percent calcium carbide by weight.
(17) "High-carbon ferrochrome" means that
alloy as defined by ASTM A-101-73 grades HC1 through HC6.
(18) "Charge 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.
(19) "Silvery iron"
means any ferrosilicon, as defined by ASTM A-100-69(74), which contains less
than thirty (30) percent silicon.
(20) "Ferrochrome silicon" means that alloy
as defined by ASTM A-482-66(71).
(21) "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 barium.
(22) "Calcium silicon" means that alloy as
defined by ASTM A-495-64(70).
(23)
"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 silicon.
(24) "Silicon metal" means any silicon alloy
containing more than ninety-six (96) percent silicon by weight.
(25) "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.
(26) "Classification date" means October 21,
1974.
(27) "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 the width.
(28) "Dispersed 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 concentrated discharges.
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 gases which:
(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.