Document zmro5DQELmLjJLknqJrv8kXg

records, size of the tap hole drill bit used for each cast " and the length of the tap liole for each previous cast. 0) Calculations. Hass Emission Rate (Ibs/hr): ` The nass emission, rate (Ibs/hr) for each test run shall consist,of the sua of the mass emissions as determined per each sample area. Should the sample time duration be greater than one hour, the ratio calculated for one hour dlvided'by the sasple time duration (hours) shall be milt (plied by the sum of the'mass emissions to obtain the pounds per hour rate. b)'Provided, however, that subsection (a) above shall not apply at the option of the operator If the operator, has installed and is operating and maintalning collecticn equipment -designed to collect a mlnlmm of fifty percent' (SOX)-.of particulate matter emissions from the' tap hole, the trough to the sklavners and the Iraq spouts. Such emissions shall be evacuated to pollution control equipment-. Emissions from said pollution control equipment.shall not exceed 46 mg/dscm (0.02 gr/dscf). (Source:' Amended at 3 111. Reg. 184, effective September 28. 1979) Section 212.446 Basic Oxygen Furnaces Emissions of particulate matter^from basic oxygen processes; shall be controlled as follows-: a) Charging. Refining and Tapping. PaFttculate matter emissions from all basic oxygen furnaces (BOF) shall be collected and ducted to pollution control equipment. Emissions from basic oxygen'furnace operations during the entire cycle (operations from the beginning of the,charging process through the end' of the'tapping process) shall not exceed -the allowable emission rate specified by Section 212.321 for new emission sources or Section 212.322 for existing emission sources, whichever is applicable. For purposes 'of computing the ..process weight rate for this subsection, hongaseous material charged to the' Furnace and process oxygen shall be included., no material shall be Included more than once. b) Hot Hetal Transfer. Hot Hetal Oesulfurlzation and ladle lancing: .1) Particulate matter emissions from hot 1 metal transfers to a mixer or ladle, hot metal desulfurization operations and ladle lancing shall be collected and : ducted to pollution control equipment, and emissions from the pollution control equipment shall not exceed 64' mg/dscm (0..03 gr/dscf). 2) Provided, however. that if the owner or operator can establish that.the total particulate matter emissions from hot metal transfers, hot metal desulfurization-operations and ladle lancing operations combined-do.not exceed the allowable' emissions as specified by Section 212.321 for new emission sources or'Section 2l2-.322 'for existing emission sources; whichever is applicable, where the process weight rate (P) is the hot petal charged to the BOF vessel, then subsection, (b)(1) above shall not apply. (Source: Amended at 3 111. Re9. 184. effective September 28v 1979) ' Section 212.447 Hot Hetal OesulfurlzatIon Hot - located In the BOF The part Icolate'matter-emissions frbmhot metal . desulfurization: shall be cdllecteid and ducted to pollution control .equipment, and emissions from the pollution control equipment 'shall not exceed 6a mg/dscxt (8.03 gr/dscf). (Source: Amended at 3 111. Reg. 184. effective September 28. 1979) r '' * Section-*ia.448------Electric- Arc Furnaces-- - The.total particulate emissions from'meltdown and refining., .charging-,..ta'pjfing. slagging,, electrode port leakage and ladle lancing sftaTT' not exceed the allowable emission rate specified by Sectioa. ilZ,12.U.or . 2l2-lZ2^ wh.lchever. ls. applicable. (Source: Amended at 3 111. Reg:-184. effective September 28. 1979) Sectloa.112^4.49^ Acgoar-OxysectOeMCjMcization vessels The total particulate emissions from all charging, refining, alloy addition-and.',lappWg operations shall not exceed the allowable eatSi.ioa.cilt. specif.led,by .Sectlon 212.321 for new emission sources or Section 212.322 for existing emission sources, whichever is' applicable. (Source: .Anended-at 3 111; Reg; 184. effective Septcnder 28. 1979) Sectton.2UwRS0. Liqul<L,Steel Charging Particulate matter emissions from liquid steel' charging in continuous casting operations Shall be controTled by- chemie^T-ormechautea-1 shrouds-or methods, of - comparable effectiveness. (Source: Amended at 3 111. Reg. `184. effective September .za.l979X------ Section 2)2.451 ' Hot Scarfing Machines AVV-bot- scarCing-'inacb.taeS'ShaVV-be'.coalcol.lexL.by... pollution control equipment. Emissions from said pollution control equipment shall not exceed 69 mg/dscm (0.03 gr/dscf) during hot - 61