Overview

By nature, mining operations generate significant noise levels that can negatively impact surrounding communities, workers’ health, and the environment. Excessive noise from equipment such as crushers, rock breakers, pile drivers, and transportation vehicles often leads to complaints, fines, and operational disruptions. Hushtec, a leading provider of industrial noise control solutions, addresses these challenges through advanced noise mitigation technologies, including Premium Noise Barriers, Acoustic Tents, and Shrouds for Pile Driving and Rock Breaking Equipment.

This case study highlights how Hushtec’s customized noise control solutions were successfully implemented in mining operations to reduce noise pollution, enhance worker safety, and ensure compliance with environmental noise regulations.

Client Overview: Large Open-Pit Mining Operation

A large mining company operating an open-pit mine in a remote but expanding region faced increasing pressure to manage noise levels. With new residential developments nearby and growing concern from environmental agencies, the company needed a comprehensive solution to reduce noise emissions from critical activities such as rock breaking, pile driving, and heavy machinery operations.

Challenge

The mining operation faced several key challenges:

• High Noise Levels: Noise from rock breaking, pile driving, crushers, and heavy machinery exceeded permissible limits, especially during nighttime operations, resulting in community complaints.

• Proximity to Residential Areas: The mine’s closeness to newly established residential zones heightened the risk of non-compliance with noise regulations.

• Worker Safety and Productivity: Excessive noise posed health risks to workers, leading to fatigue, potential hearing damage, and decreased productivity over time.

• Need for Customization: Different areas of the operation required tailored noise control measures due to varying equipment types and operational requirements.

Hushtec Solution

Hushtec was engaged to design and implement a noise mitigation strategy tailored to the mine’s unique operational needs. The comprehensive approach included the deployment of Premium Noise Barriers, Acoustic Tents, and customized Shrouds for Pile Driving and Rock Breaking equipment.

1. Premium Noise Barriers

Hushtec’s Premium Noise Barriers were installed around high-noise equipment, particularly mobile crushers and transportation units operating continuously throughout the day.

• Customization: The barriers were modular for quick assembly and disassembly, adapting easily as operations shifted. Their height and placement were optimized for maximum noise attenuation.

• Material: Constructed from durable, weather-resistant materials, the barriers were designed to endure extreme mining conditions, including high temperatures, dust, and moisture.

• Results: Noise levels were reduced by up to 35 dB(A), particularly at night, significantly decreasing disturbances to nearby residential areas.

2. Acoustic Tents for Rock Breakers

To manage the impulsive noise generated by rock-breaking activities, Hushtec implemented Acoustic Tents.

• Customization: Designed with flexible openings to fit various rock-breaking equipment, the tents featured reinforced insulation materials to absorb and dissipate sharp sounds.

• Mobility: Easily movable, the tents could be relocated as operations progressed across the site.

• Results: Acoustic tents reduced noise by up to 30 dB(A) around rock-breaking zones, improving employee safety and lowering the operation’s overall noise footprint.

3. Pile Driving Shrouds

Pile driving, particularly during infrastructure development, posed another major noise challenge.

• Customization: Hushtec designed shrouds to fully encapsulate the pile-driving equipment, using high-density noise-absorbing materials. The flexible design accommodated various piling tools and methods.

• Ease of Use: Lightweight and easy to install, the shrouds minimized downtime and allowed noise control without disrupting operations.

• Results: Pile-driving noise was reduced by up to 25 dB(A), helping the mine comply with environmental noise regulations while continuing construction activities uninterrupted.

4. Rock Breaker Shrouds

Rock-breaking operations in open-pit environments are particularly noisy due to their highly impulsive sound profile.

• Customized Shrouds: Hushtec developed specialized shrouds that encapsulated hydraulic hammers used in rock-breaking, attaching easily without hindering functionality.

• Noise Absorption: Built with multi-layered, sound-absorbing materials, the shrouds significantly reduced high-frequency noise.

• Results: These shrouds reduced noise by up to 20 dB(A), helping the mine remain within legal limits.

Outcomes

By implementing Hushtec’s noise control solutions, the mining operation achieved:

• Noise Reduction: A reduction of 20–35 dB(A) across key operations, notably pile driving and rock breaking, ensuring compliance with local regulations.

• Improved Community Relations: Lower noise pollution led to fewer community complaints and enhanced the company’s social license to operate.

• Enhanced Worker Health and Safety: Reduced exposure to excessive noise decreased health risks and fatigue, contributing to improved productivity and morale.

• Regulatory Compliance: The mine met all environmental noise requirements, avoiding fines and operational delays.

• Scalability and Flexibility: The modular, mobile nature of Hushtec’s solutions allowed the company to scale and adapt noise control measures as needed.

Conclusion

Hushtec’s innovative and customizable noise control solutions addressed the mining operation’s complex challenges. The operation significantly mitigated noise pollution, achieved regulatory compliance, and created a safer, more productive work environment by deploying Premium Noise Barriers, Acoustic Tents, and Shrouds for Pile Driving and Rock Breaking. This case underscores the value of tailored noise mitigation strategies in large-scale industrial environments where noise is a persistent issue.