Mining Applications

Colpro's mining projects and capabilities are focused on:

Noise treatment of OEM equipment to meet mine specifications
Design, testing and investigation
Attenuators
Exhaust systems
Acoustic panels
Acoustic lining
Thermowrap thermal insulation blankets
Proven performance on the most noise restrictive mines in Australia. e.g. Bengalla, Mount Arthur Coal Mines
Aftermarket supply of thermal insulation (many OEM patterns readily available)

Colpro Engineering provide varied services for mining applications. They can provide simple secondary silencers or engine compartment lining. They also offer wholistic solutions for individual machinery, with the use of acoustic modelling and noise intensity surveys, to achieve acoustic targets.

Colpro has designed and supplied acoustic treatment to almost all types and sizes of above ground mining machinery. Bellow is a small summary of projects to show the range of applications.

Summary of Mining Projects

These are examples of Colpro's past involvements and capabilities:

Haul Trucks Primary and secondary exhaust silencers to suit a fleet of 320 tonne haul trucks at Mt Arthur Coal Mine. Colpro worked closely with OEM to “tune” the silencers to target particular frequencies. This allowed the trucks to meet their overall sound power as well as frequency spectrum requirements. Full Acoustic Treatment to fleet of 190 tonne haul trucks at Muswellbrook Coal. Working with OEM proprietary designs, Colpro created acoustic models to help design and predict acoustic treatment to lower the sound power of the haul trucks. Treatment included: High performance exhaust silencer GE grid box attenuation Radiator attenuators Rear axle fan attenuator Side doors and belly pan Side doors and belly pan feature excellent access for maintenance. No issues with overheating to date.
Excavators 30m³ excavator at Bengalla Mine. Colpro was responsible for lowering the sound power to meet the contract specification. Colpro designed, fabricated and installed: Walkthrough rear counterweight enclosure Hydraulic and engine intake and discharge attenuators Engine room and hydraulic room wall lining Floor, wall and roof panelling
Acoustic treatment is integrated to the profile of the machine. Slewing radius and maintenance access is unaffected. Acoustic treatment of 16m^3 excavator at Mt Owen mine. Conducted sound intensity survey with an acoustic model of the machine. Designed, fabricated and installed: High performance exhaust silencers with dust extraction venturi Engine cooler attenuator Hydraulic cooler attenuator Engine and hydraulic compartment lining Acoustic door to hydraulic compartment
Loaders 25 tonne wheeled loader at Bengalla mine. Designed, fabricated and installed the following acoustic treatment: Exhaust silencers Side doors Hinged rear radiator attenuator Engine compartment lining Minor panelling
1.7 cubic meter wheeled loader. Colpro designed fabricated and installed engine compartment lining, Secondary exhaust silencer and rear radiator attenuator (not shown).

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