Gas Fired Lead Pot Canopy Hood
Oxide Drum Filling Local Exhaust Ventilation
Oxide Barrel Filling Local Exhaust Ventilation
Toxic Material Belt Conveying Head Pulley
Conveyor Belt Ventilation
Screw Conveyor Components
Drag Link Conveyor Configurations (Part 1)
Drag Link Conveyor Configurations (Part 2)
Paste Mixing Testing Station
Ventilated Tamping Stand
Lead Pot and Dross Hood
Scrap Pot and Dross Hood
Scrap Handling Barrel/Drum Exhaust Hood
Pasting Station with Combined Supplied Air Island (SAI) and Exhaust
Integrated Controls Plate Take-Off Operation
Detail A Integrated Controls Plate Take-Off Hood
Detail B Integrated Controls Plate Take-Off Lug Breaking Hood
Detail C Integrated Controls Plate Take-Off Rotary Stacking Table with Conveyor
Detail D Integrated Controls Plate Take-Off Supplied Air Island
Plate Parting Transition Hood Between Flash Drier and Take Off
Plate Storage Rack Hood
Pasting Take-Off Work Station Hood
Parting Station Band Saw Ventilation
Surface Grinder with Captor Hood
Plate Wrapping Station (Industrial)
Stacking Table Single Exhaust Booth Hood
Slant Stacking Station (Industrial)
Cast on Strap Machine (Farmer) Total Enclosure with Exhaust
Cast on Strap Machine (Dynacast II) Emission Controls
Group Drop Tamping/Burner Hood
Stack and Burn Bench Hood
Tiegel Machine Enclosure Assembly
Tiegel Anchor Sinking Station
Post Tacking Portable Hood (HVLV)
Dry Type Dust Collectors Dust Disposal
Dry Type Dust Collectors Discharge Valves (Part 1)
Dry Type Dust Collectors Discharge Valves (Part 2)
Flexible Exhaust Connections
Typical System Layout Low Volume/High Velocity
Hood for Cup Type Surface Grinder and Wire Brushes
Supplied Air Island
Central Vacuum System
Plan View of Central Vacuum System
Elevation View of Central Vacuum System
Schematic View of Central Vacuum System
Boot Wash Station
Shoe Cleaning Machine
Clothes Cleaning Air Shower
Paste Mixer with Supplied Air Island above Testing Station
Intercell Burning Backdraft Hood
Lead: Battery Manufacturing eTool
Battery Repair and Reclaim » Battery Repair
Defective batteries are repaired and salvaged. The plate groups are tested and reused when possible. Groups are removed by sawing or cutting the covers off the battery, breaking or burning the intercell connectors, and removing the groups.
The major source of lead exposure in the battery repair process comes from lead oxide which can become easily airborne.
Potential Sources of Exposure
While removing plates, the operator, if not careful, may spill oxide out of the battery case, bang the dry plates together or against the case causing contaminants to become airborne.
High levels of lead fumes are generated when flames are put in contact with lead.
Moving groups in and out of battery cases may cause a bellows effect. The bellows effect will release lead particulates at the workstation.
Contamination may occur from improper disposal of battery parts.
Possible Engineering Controls
Provide local slot or downdraft ventilation at work stations.
Put a vacuum drop at workstations used for battery repair and salvage.
- Use local exhaust ventilation on torch.
Provide local exhaust ventilation in areas for storage of tools, plates, and supplies.
Use air-propane or air-MAP gas instead of air-acetylene flame for torches.
Possible Work Practice Controls
Make sure ventilation is working properly around sawing areas.
Keep area vacuumed.
Clean up oxide spills immediately (see Figure 1).
- Use a ventilated scrap barrel for disposal of elements.
Place, do not throw, elements into the scrap barrel.
Cover barrel with plastic before moving.
Open the container and disassemble it in a ventilated work area.
Use caution while removing plates from the battery case.
Remove plates cautiously to prevent a bellows effect.
- If a bellows effect occurs, vacuum up particulates immediately with a central vacuum system or HEPA vacuum.
Do not store materials on active work surfaces; they may interfere with ventilation.
Provide adequate PPE, a change of clothes, and shower rooms (see OSHA Lead Requirements for PPE, Housekeeping, and Hygiene Facilities).