Types of Blasting Equipment
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Suction Blasting:
- Uses venturi principal and pressure difference to suck media into gun from hopper.
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Pressure Blasting:
- Accelerates media using compressed air.
Types of Blast Media
- Common Blast Media:
- Include sand, coal slag, steel grit, garnet, and glass beads.
Different Methods of Blasting
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Dry Blasting:
- Combines media with a sponge to reduce dust.
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Vacuum Blasting:
- Captures media and reduces dust.
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Water Blasting:
- Uses water with abrasive.
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Bristle Blasting:
- Handheld power tool using wire belts to remove contaminants.
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Shot Blasting:
- Handheld device that cleans small areas by projecting tiny metal balls.
Specific Blasting Techniques
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Micro Blasting:
- Utilizes a fine jet of media for delicate tasks like writing on glass or cutting patterns in eggshells.
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Bead Blasting:
- Uses glass beads to remove buildup or prepare surfaces for painting without damaging them.
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Shot Peening:
- Creates small dents on metal surfaces to increase wear resistance.
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Soda Blasting:
- Projects baking soda particles to clean delicate surfaces like restoration work.
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Steel Sand Blasting:
- Removes rust and old paint from steel.
Blasting for Excavation
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Blast Hole Drilling:
- Patterns and controlled explosions help excavate rock while lowering costs.
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Qualified Blaster Oversight:
- Ensures safe detonation of commercial explosives.