How do you control dust in a rock drilling operation?

Include engineering controls, personal protective equipment and work practices. During rock drilling operations, use wet or dry control systems to control dust. Wet systems are efficient, but may freeze in the winter. Caution is advised when using wet systems in the presence of electrical energy sources.

How do you remove dust from a rock drilling cab?

The dust is removed in the collector. When feasible, use rock drilling equipment with enclosed positive-pressure cabs with air conditioning and filtered air supply to isolate the operator from the dust. Older cabs can be retrofitted with systems that filter, heat and cool the air. Wash hands and face before eating, drinking or smoking.

How does McCallum rock drilling work?

Let’s get into it. All the drills at McCallum Rock Drilling are equipped with two-phase dust control systems. These systems reduce airborne dust and create a safer work environment for our employees. As the hole is drilled, the bit grinds the rock into a fine powder.

How do you drill a hole in a rock?

Using a rotary hammer drill, create several holes in the rock’s surface. Drill as deep as the wedges require and clear out any dust to help the wedges grip. Spacing the holes evenly around the rock will help you get cleaner breaks. Now, insert a wedge between two feathers in each hole, making sure the feathers face outward.

What happens if you drill a rock before blasting a highway?

Rock drilling before blasting for highway construction may generate a large amount of dust containing crystalline silica. Also, rock drilling for other reasons during construction such as site preparation, pipeline installation or water well drilling may generate hazardous dust.

Do you need a dust control system for rock drilling?

During rock drilling operations, use wet or dry control systems to control dust. Wet systems are efficient, but may freeze in the winter. Caution is advised when using wet systems in the presence of electrical energy sources. When purchasing equipment, look for dust controls. Always use the dust-control system, and keep it well maintained.