Wisconsin Administrative Code › Department of Natural Resources › NR 400-499 - Environmental Protection - Air Pollution Control › Chapter NR 463 - National Emission Standards For Hazardous Air Pollutants For Metals Treating And Processing › Subchapter III - Iron and Steel Foundries › Section NR 463.22 - What definitions apply to this subchapter?

Current through June 24, 2024
For terms not defined in this section, the definitions
					 contained in chs NR 400 and 460 apply to the terms in this subchapter, with
					 definitions in ch. NR 460 taking precedence over definitions in ch. NR 400. If
					 this section defines a term which is also defined in ch. NR 400 or 460, the
					 definition in this section applies in this subchapter. In this
					 subchapter:
(1) "Automated conveyor
				  and pallet cooling line" means any dedicated conveyor line or area used for
				  cooling molds received from pouring stations.
(2) "Automated shakeout line" means any
				  mechanical process unit designed for and dedicated to separating a casting from
				  a mold. These mechanical processes include shaker decks, rotary separators and
				  high-frequency vibration units. Automated shakeout lines do not include manual
				  processes for separating a casting from a mold, such as personnel using a
				  hammer, chisel, pick ax, sledge hammer or jackhammer.
(3) "Bag leak detection system" means a
				  system that is capable of continuously monitoring relative particulate matter
				  loadings in the exhaust of a baghouse to detect bag leaks and other upset
				  conditions. A bag leak detection system includes an instrument that operates on
				  triboelectric, electrodynamic, light scattering, light transmittance or other
				  effect to continuously monitor relative particulate matter loadings.
(4) "Binder chemical" means a component of a
				  system of chemicals used to bind sand together into molds, mold sections and
				  cores through chemical reaction as opposed to pressure.
(5) "Capture system" means the collection of
				  components used to capture gases and fumes released from one or more emissions
				  points and then convey the captured gas stream to a control device or to the
				  atmosphere. A capture system may include the following components as applicable
				  to a given capture system design: duct intake devices, hoods, enclosures,
				  ductwork, dampers, manifolds, plenums and fans.
(6) "Cold box mold or core making line" means
				  a mold or core making line in which the formed aggregate is hardened by
				  catalysis with a gas.
(7)
				  "Combustion device" means an afterburner, thermal incinerator or scrap
				  preheater.
(8) "Conveyance" means
				  the system of equipment that is designed to capture pollutants at the source,
				  convey them through ductwork and exhaust them using forced ventilation. A
				  conveyance may include control equipment designed to reduce emissions of the
				  pollutants. Emissions that are released through windows, vents or other general
				  building ventilation or exhaust systems are not considered to be discharged
				  through a conveyance.
(9) "Cooling"
				  means the process of molten metal solidification within the mold and subsequent
				  temperature reduction prior to shakeout.
(10) "Cupola" means a vertical cylindrical
				  shaft furnace that uses coke and forms of iron and steel such as scrap and
				  foundry returns as the primary charge components and melts the iron and steel
				  through combustion of the coke by a forced upward flow of heated air.
(11) "Deviation" means any instance in which
				  an affected source or an owner or operator of an affected source fails to meet
				  any of the following:
(a) Any requirement or
				  obligation established by this subchapter, including any emission limitation,
				  operating limit, work practice standard or operation and maintenance
				  requirement.
(b) Any term or
				  condition that is adopted to implement an applicable requirement in this
				  subchapter and that is included in the operating permit for any iron and steel
				  foundry required to obtain an operating permit.
(c) Any emission limitation, operating limit
				  or work practice standard in this subchapter during startup, shutdown or
				  malfunction, regardless of whether or not the failure is permitted by this
				  subchapter.