Kentucky Administrative Regulations › Title 401 - ENERGY AND ENVIRONMENT CABINET - DEPARTMENT FOR ENVIRONMENTAL PROTECTION › Chapter 61 - Existing Source Standards › Section 401 KAR 61:075 - Steel plants and foundries using existing electric arc furnaces

Current through Register Vol. 51, No. 1, July 1, 2024
RELATES TO: KRS Chapter 224
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 control of emissions from steel plants or foundries
				using existing electric arc furnaces.
Section
			 1. Applicability. The provisions of this administrative regulation
			 apply to the following affected facilities in steel plants and foundries
			 commenced before the classification date defined below: electric arc furnaces
			 and/or associated metallurgical equipment located in the same shop as well as
			 associated 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
			 arc furnace (EAF)" means any furnace that produces molten steel and heats the
			 charge materials with electric arcs from carbon electrodes. Furnaces from which
			 the molten steel is cast into the shape of finished products, such as in a
			 foundry, are affected facilities included within the scope of this definition.
			 Furnaces which, as the primary source of iron, continuously feed prereduced ore
			 pellets are not affected facilities within the scope of this
			 definition.
(2) "Dust-handling
			 equipment" means any equipment used to handle particulate matter collected by
			 the control device and located at or near the control device for an EAF subject
			 to this administrative regulation.
(3) "Control device" means the air pollution
			 control equipment used to remove particulate matter generated by an EAF(s) from
			 the effluent gas stream.
(4)
			 "Capture system" means the equipment (including ducts, hoods, fans, dampers,
			 etc.) used to capture or transport particulate matter generated by an EAF and
			 associated metallurgical equipment to the air pollution control
			 device.
(5) "Associated
			 metallurgical equipment" in the shop includes but is not limited to scrap
			 preheaters and degreasers, and equipment for hot metal transfer, charging,
			 lancing, boiling, slagging and deslagging, tapping, inoculating, teeming,
			 hot-topping, vacuum degassing, continuous casting, etc.
(6) "Charge" means the addition of iron and
			 steel scrap or other materials into the top of an electric arc
			 furnace.
(7) "Charging period"
			 means the time period commencing at the moment an EAF starts to open and ending
			 three (3) minutes after the EAF roof is returned to its closed
			 position.
(8) "Tap" means the
			 pouring of molten steel from an EAF.
(9) "Tapping period" means the time period
			 commencing at the moment an EAF begins to tilt to pour and ending three (3)
			 minutes after an EAF returns to an upright position.
(10) "Meltdown and refining" means that phase
			 of the steel production cycle when charge material is melted and undesirable
			 elements are removed from the metal.
(11) "Meltdown and refining period" means the
			 time period commencing at the termination of the initial charging period and
			 ending at the initiation of the tapping period, excluding any intermediate
			 charging periods.
(12) "Heat time"
			 means the period commencing when scrap is charged to an empty EAF and
			 terminating when the EAF tap is completed.
(13) "Shop" means the building which houses
			 one (1) or more EAF.
(14) "Direct
			 shell evacuation system" means any system that maintains a negative pressure
			 within the EAF above the slag or metal and ducts the emissions to the control
			 device.
(15) "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.
(16) "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 have a length more than twice the width.
(17) "Classification date" means October 21,
			 1974.