P5 MELT CONFINED SPACE LOG

Transcription

1 MACHINE NUMBER SPACE HAZARDS SPACE DESCRIPTION DESIGNATION ACCEPTABLE ENTRY PROCEDURES REQUIRED ENTRY EQUIPMENT FREQUENCY OF ENTRY Non-Metallics Weigh Hopp Non-permit Dusty atmosphere, possible lack of oxygen (rusty metal) Multi Gas Air Monitor As needed for Ventilation Mechanical belts feed into space Body Harness Maintenance Engulfment by contents Lifeline/rope Only Entrapment in bottom taper Portable Ladder 1. Empty contents of bin and close bottom sliding door. 2. Perform lockout of infeed belts and vibration device 3. Air monitoring must be within acceptable limits Metallics Weigh Hopper Non-permit Dusty atmosphere, possible lack of oxygen (rusty metal) Multi Gas Air Monitor As needed for Ventilation Mechanical belts feed into space Body Harness Maintenance Engulfment by contents Lifeline/rope Only Entrapment in bottom taper Portable Ladder 1. Empty contents of bin and close bottom sliding door. 2. Perform lockout of infeed belts and vibration device 3. Air monitoring must be within acceptable limits Railcar Permit Dusty atmosphere Multi Gas Air Monitor As needed for Sand,Scrap,Alloys and Non Metall Required Engulfment by contents (sand) Body harness maintenance Possible toxic atmosphere (low level CO) Lifeline/rope only 2-way radio 1.Empty contence of space. Mechanical retrieval device 2. Continuous ventilation required, a portable blower may be necessary 3. Air monitoring must be acceptable prior to entry Blue Flag 4.Blue flag on tracks to prevent railroad from moving car. Commodity Pit Non-permit Material falling from above if hopper sides are removed. Ladder As needed # (Pit Shaker) Moving parts shakers & rollers Multi Gas Air Monitor # (Pit Conveyer) 1. Conveyor belts need permanent guarding, if guards are removed the system must be locked out prior to entry. Blue flag and Barricades 2. Hot work requires ventilation and air monitoring 3. Blue flag on railroad track to prevent dumping into area. 4. Barricade area to prevent trucks from dumping. 5. Oxy/fuel tanks shall be left outside the space Charge Bucket Non-permit Portable Ladder As needed # (P1-East) 1. Empty contents of bucket # (P1-West) 2. Lockout crane magnet and bucket to prevent movement # (P2-East) 3. Secure bottom doors # (P1-West) 4. Lockout weigh hoppers. Charge Tunnel Non-permit Charge bucket moving in and out of space Multi Gas Air Monitor Daily # (Gray) Ventilation Possible low level CO (from welding equipment). Communication Equipment 1. Lockout Non-metallics, metallics shaker and pit car to prevent movement Barricade equipment. # (Ductile) 2. Barricade area directly under weigh hoppers.

2 Cupola Permit Extreme temperature Multi Gas Air Monitor Weekly Bottom Doors Closed Required Possible toxic atmosphere (historic low level of CO on entry) Body Harness Lifeline/rope # (Gray) Electrical equipment for mechanical & making repairs Man basket with mechanical retrieval # (Ductile) Non-Production Entry Only Communication Equipment 1. Complete a bottom drop procedure 2. Perform lockout on all equipment, including level gauges 3. Spray and purge for minimum of 3 hours 4. Air testing must demonstrate an acceptable air quality prior to entry Cupola Non-permit Extreme temperature Body Harness Weekly Bottom Doors Open Lifeline/rope Electrical equipment for mechanical & making repairs Man basket with mechanical retrieval # (Gray) 1. Complete a bottom drop procedure Monitor may be worn on person. # (Ductile) 2. Perform lockout on all equipment, including level gauges 3. Allow cooling time. 4. Air testing must demonstrate an acceptable air quality prior to entry Hot Oil Heat Exchangers Non Permit Mechanical & Electrical hazards (rotating pulluys & fan blades) Ground fault protection for As needed for # portable equipment Inspection # (Duct East) 1. Lockout related equipment Ladder # (Duct West) 2. Use GFCI protection do to wet conditions Thermal Oil Expansion Tan Permit Fall hazard > 4 feet Multi Gas Air Monitor As needed for # (Gray) Required High temperature Portable ventilation equipment Maintenance # (Ductile) 1. Lockout / Block incoming lines Ladder Only 2. Empty Contents (oil) 3. Allow cooling time. 4. Air testing must demonstrate an acceptable air quality prior to entry Recouperator Permit Fall hazard > 4 feet Entry via bottom hatch; there is a top As needed for # (Gray) Required High temperature hatch but usually too hot to enter Maintenance # (Ductile) Possible toxic atmosphere (CO) Only Mechanical /Electrical Equipment Multi Gas Air Monitor 1. Purge and allow system to cool for 24 hours Body Harness 2. Lockout of related machinery Lifeline/rope Recouperator Duct Permit Toxic Atmosphere (carbon monoxide) Multi Gas Air Monitor As needed for Required Fall hazard into bughouse inlet or recouperator Body Harness Maintenance 1. Lockout related equipment Lifeline/rope Only

3 2. Allow cooling time Portable lighting Rolling Furnaces Non-permit Fall hazard (bottom openings if inductors are removed). 1. Fall protection when inductors As Needed # (#1 South) Extreme temperature. are removed for repair # (#2 Middle) Dust and noise during relining process. 2. Portable ventilation # (#3 North) Movement of furnace. 3. Ground fault protection for 1. Lockout hydraulic mechanism for furnace portable equipment 2. Pin furnace to prevent movement 4. Double hearing protection may 3. Block opening in bottom of furnace when inductors are removed (Fall Protection) be required 4. Provide continuous ventilation during refractory work 5. Ground fault protection for portable electrical equipment used inside furnace Furnace Pits Non-permit Fall hazard (if barricades are removed). Multi Gas Air Monitor As needed for With No Production Ventilation Extreme temperature. Portable ventilation equipment Maintenance in Entire Melt Dept. Movement of furnace. Ladder Only Electrical hazard (inductors) Engulfment hazard (water cooling lines could bust and fill pit) 1. Lockout hydraulic mechanism for furnace. 2. Lockout inductors to prevent electrocution. 3. Ground fault protection for portable electrical equipment used inside pit. 4. Provide continuous ventilation. 5. Furnace must be pined to prevent movement. Furnace Pits Permit Fall hazard (if barricades are removed). Multi Gas Air Monitor As needed for During Production Required Extreme temperature. Portable ventilation equipment Maintenance Cupolas on Relief Movement of furnace. Ladder Only Electrical hazard (inductors) Bull Ladle NOT Tapping Engulfment hazard (water cooling lines could bust and fill pit) 1. Lockout hydraulic mechanism for furnace. 2. Lockout inductors to prevent electrocution. 3. Ground fault protection for portable electrical equipment used inside pit. 4. Provide continuous ventilation. 5. Furnace must be pined to prevent movement. Combustion Air Fan Permit Mechanical hazard (rotating blades) Multi Gas Air Monitor As needed for # (Gray) Required Possible toxic atmosphere (CO) Portable ventilation equipment Maintenance # (Ductile) Extreme temperature. Portable lighting Only 1. Lockout related equipment 2. Allow cooling time Non-Production Entry Only! 3. Air testing must demonstrate an acceptable air quality Combustion Chamber Permit Connected to cupola, extreme temperature Multi Gas Air Monitor Weekly # (Gray) Required Possible toxic atmosphere, historically has carbon monoxide Body Harness # (Ductile) Refractory work may require blasting, chipping, etc. inside space Lifeline/rope Fall hazard into vertical ductwork. 1. Purge and allow system to cool for 24 hours 2. Lockout system to ensure burners cannot be started 3. Air testing must demonstrate an acceptable air quality

4 *When entering with a contractor, ensure they following WF entry procedures* Exhaust stack Permit Stack connected to main exhauster Enter via hatch bottom of stack As needed for And Main Exhauster Required High temperature Maintenance Possible toxic atmosphere from residual gases from emission system Multi Gas Air Monitor Only # (Gray) 1. Purge with main exhauster Body Harness # (Ductile) 2. Perform lockout on all related equipment Lifeline/rope Charge Tunnel Sump Permit Collects ground water from around pit Top manhole entry As needed for # Required Electrical equipment in wet environment Multi Gas Air Monitor Maintenance Toxic or lack of oxygen in atmosphere possible Body Harness Only Greater than 4 feet deep Lifeline/rope 1. Empty water from bottom of pit 2. Perform lockout on all related equipment External barriers 4. Use ground fault protection on portable equipment in pit 5. Provide external barriers to prevent fall into manhole Mote return tank Permit Engulfment Multi Gas Air Monitor As needed for Required Possible toxic atmosphere, history of carbon monoxide- probably Body Harness Maintenance (Cupola Shell Water) Related to slag belt that runs above tank Lifeline/rope Only 1. Empty contents of tank, block inflow lines 2. Remove slag from overhead belt and lockout Converter Shell Non-permit Hazard of movement if lifted by crane. Ladder Daily Hazard of lid closing on entrant 1. Lock out ladle repair crane. 2. Lock or tie lid back. Roto Mixer Non-permit Mechanical hazard (Rotating blades / paddles Locks Weekly 1. Empty contents of tank, block inflow lines 2. Lockout mixer Melt GMD Baghouse Non-permit Pulse Valves Multi Gas Air Monitor Weekly # (Gray GMD) Ventilation Dusty atmosphere Ventilation- system or portable # (Ductile GMD) Procedure # (Melt Fugitive) Ventilation Procedure Required Non-Production Entry Only! 1. Lockout all related equipment Top Section Only 2. Continuous ventilation required, a portable blower may be necessary 3. Air monitoring must be acceptable prior to and during entry 4. No hot work is allowed while bags are in place Melt GMD Baghouse Permit Toxic atmosphere Multi Gas Air Monitor Weekly # (Gray GMD) Required Oxygen deficient Ventilation- system or portable

5 # (Ductile GMD) Entrapment # (Melt Fugitive) Dusty atmosphere Non-Production Entry Only! Baghouse dust collectors are pulling air from the mold cooling lines Bottom & Middle Section Only and may have low level carbon monoxide Ventilation Procedure Required 1. Lockout all related equipment 2. Continuous ventilation required, a portable blower may be necessary 3. Air monitoring must be acceptable prior to and during entry 4. No hot work is allowed while bags are in place Limestone & Coke Bins Permit Mechanical hazard Multi Gas Air Monitor 2x Year Required (approximately 25 deep) Body Harness Entrapment Engulfment 2-way radio Dusty atmosphere Possible low oxygen Empty contents of space Lockout all related equipment - belts Air testing must demonstrate acceptable air quality Hot Well Tank Permit Multi Gas Air Monitor Annual # (Gray) Required Engulfment Body Harness # (Ductile) Mechanical hazard 1. Lockout related equipment Portable lighting 2. Empty contents of tank 3. Block incoming water flow 4.Use GFCI protection do to wet conditions Cold Well Tank Permit Multi Gas Air Monitor Annual # (Gray) Required Engulfment Body Harness # (Ductile) Mechanical hazard 1. Lockout related equipment Portable lighting 2. Empty contents of tank 3. Block incoming water flow 4.Use GFCI protection do to wet conditions Cooling Tower Non Permit Mechanical & Electrical hazards (rotating pulluys & fan blades) As needed for (Gray) Inspection # (Ductile) 1. Lockout related equipment 2. Use GFCI protection do to wet conditions Dehumidification Unit Permit Extreme Heat Multi Gas Air Monitor As needed for # Required Atmosphere may be toxic Portable lighting Inspection Rotating parts South End (Rotary Dryer) 1.Entry via side man door 2. Air testing must demonstrate acceptable air quality 3. Lockout rotating drum and intake diversion valve. 4. Portable blower may be necessary.

6 Dehumidification Unit Non Permit Hot ambient air Goggles Recommended, Gloves Daily # High air flow Portable lighting 1. Entry via east side man door. North End (Filter Access) 2. Entry door has interior safety latch for egress. Cupola Wind Drum Permit Extreme Temperature Multi Gas Air Monitor As needed for # (Gray) Required Extreme Forced Air Body Harness Inspection # (Ductile) Possible low level carbon monoxide 1. Cupola shutdown procedure. Portable lighting 2. Lockout related equipment. 3. Lockout blast blower. Non-Production Entry Only Cupola Gas Take Off Permit Extreme Temperature Multi Gas Air Monitor As needed for # (Gray) Required Extreme Forced Air Body Harness Inspection (Ductile) Toxic atmosphere (Carbon Monoxide) Fall hazard into cupola and quencher Portable lighting 1. Lockout related equipment. 1. Cupola shutdown procedure. 2. Allow cooling time. Non-Production Entry Only 3. Air monitoring must be acceptable prior to and during entry. Cupola Bustle Water Drain Permit (approximately 6' deep) Multi Gas Air Monitor Weekly Shell Water ON Required Entrapment (Tapered Sides) Body Harness Engulfment (Flowing Water) Ladder Possible low level carbon monoxide Cupola Bustle Water Drain Non Permit Possible low level carbon monoxide Ladder Shell Water OFF (approximately 6' deep) Body Harness Entrapment (Tapered Sides) Coarse Grain Separator Permit Connected to cupola, extreme temperature Multi Gas Air Monitor Weekly

7 # (Gray) Required Possible toxic atmosphere, historically has carbon monoxide Body Harness # (Ductile) Refractory work may require blasting, chipping, etc. inside space Lifeline/rope Fall hazard into vertical ductwork. 1. Purge and allow system to cool for 24 hours 2. Lockout system to ensure burners cannot be started 3. Air testing must demonstrate an acceptable air quality *When entering with a contractor, ensure they following WF entry procedures* Blast Duct Permit Extreme Temperature Multi Gas Air Monitor As needed for Gray Required Extreme Forced Air Body Harness Inspection Ductile Possible low level carbon monoxide 1. Allow cooling time. Portable lighting 2. Lockout related equipment. 3. Lockout blast blower. Non-Production Entry Only Blast Blower Permit Extreme Temperature Multi Gas Air Monitor As needed for # (Spencer) Required Extreme Forced Air Body Harness Inspection # (Robinson) Mechanical hazard (fan blades) 1. Allow cooling time. Portable lighting 2. Lockout related equipment. 3. Lockout blast blower. Non-Production Entry Only