Mining operations present some of the highest fire risks across all industries due to the nature of the work and the heavy machinery involved. These vehicles operate in extreme conditions, handling flammable materials and generating significant heat, making them susceptible to fires. Implementing specialised fire suppression solutions is crucial to protect lives, equipment and the environment.

Heavy vehicles in mining, such as haul trucks, excavators and loaders, are constantly exposed to potential fire hazards. The risks stem from several sources:

Fuel and oil leaks

• Using large quantities of fuel and hydraulic oils increases the likelihood of leaks, which can ignite if they come into contact with hot surfaces.

Electrical fault

• Faulty wiring, short circuits and overheating electrical components can spark fires.

Extreme operating conditions

• High ambient temperatures, dust and mechanical friction further amplify fire risks.

Fire suppression solutions

• To mitigate these risks, specialised fire suppression systems tailored to mining vehicles' unique environment and operational conditions are essential.

These systems can be broadly categorised into the following types:

1. Fixed fire suppression systems

Automatic fire suppression systems are designed to detect and extinguish fires without human intervention. These systems typically include:

• Automatic detection activation: Sensors that detect heat, smoke, or flames. Common types include loss of pressure tubing, linear heat detection cables, spot heat detectors and optical flame detectors.
• Manual system activation: Strategically placed manual actuators connected to the system to enable personnel intervention if the detection system hasn't already activated the system.
• Suppression agents: Various suppression agents can be used depending on the specific application and fire risk. Common types of suppression include foam, dry chemical powder, water mist and aerosol.
• Distribution network: A system of pipes and nozzles that deliver the suppression agent to the identified risk/fire location.

2. Portable fire suppression systems

While not as immediate as automatic systems, manual systems are still vital, especially in smaller vehicles or as a secondary safety measure. These systems include portable fire extinguishers strategically placed within the vehicle for quick access by operators.

3. Hybrid systems

Hybrid systems combine automatic and manual elements, providing a comprehensive approach to fire suppression. For instance, an automatic system might activate first, followed by manual intervention to ensure the fire is fully extinguished and prevent re-ignition.

Implementing fire suppression solutions in mining vehicles involves several critical considerations. The harsh mining environment requires robust and durable systems. Components should resist dust, vibration and temperature extremes to ensure reliable operation. Regular maintenance and inspections are vital to ensure the systems function correctly when needed. This includes checking the condition of detectors, suppression agents, and distribution networks. Operators and maintenance personnel should be trained on fire suppression systems, including operating manual extinguishers and responding appropriately during a fire.

You must ensure the fire suppression systems comply with relevant industry standards and regulations. This ensures safety, facilitates smoother operations, and potentially lowers insurance premiums.

Specialised fire suppression solutions for heavy vehicles in mining are essential to safeguard workers, equipment and productivity. By understanding the specific risks and implementing robust, well-maintained systems, mining operations can significantly mitigate fire hazards, ensuring a safer working environment. Regular training, maintenance and adherence to industry standards further enhance the effectiveness of these life-saving systems.

Delta Fire is a commercial fire safety expert specialising in designing and installing vehicle fire suppression systems and products. Contact us for more details.

Also read : Safeguarding oil and gas facilities

 

The heavy vehicles that do much of the grunt work for industries such as mining, logging and mass transit come with a hefty purchase price, so there is no room for error when it comes to protecting such machinery.

The vehicles often have to run 24 hours a day, seven days a week in hot and harsh environments, exposing them to significant fire dangers. The engine compartments and breaking systems are especially vulnerable, with mechanical and electrical failures accounting for most of the fires. Fuel-line ruptures and the presence of flammable liquids in engines add to the volatile mix.

As a result, these heavy vehicles need around-the-clock fire suppression systems to safeguard drivers and their equipment in the face of potentially catastrophic fire threats.

Get advanced solutions that match your needs

Sophisticated fire protection systems are available for at-risk industries.

In the mining sector, for example, vehicles such as ore haulers, draglines, haul trucks and dozers are crucial to the smooth running of operations. Such vehicles must withstand very high temperatures in the engine compartment while also combatting the impact of vibrations and dust. As a result, they need to be fitted with tailored fire-protection systems to protect everything from the wheels to the cabins.

This machinery is extremely expensive to buy and often very time-consuming to fix or replace. So any fire damage can result in substantial downtime for sites and upset business continuity and profitability. There is also a very real threat to drivers and other equipment operators if shortcuts are taken.

What can site owners do to sleep well at night? The nature of the fire hazard that these heavy vehicles present has to be carefully considered if the detection and suppression solution is to work efficiently. All systems must also comply with strict international codes and standards.

A number of specially developed vehicle fire protection systems are available to address these particular challenges on high-risk sites. They are linear or spot detection-based dry chemical powder systems (which discharge a dry powder into the risk area to suppress liquid fuel fires), or foam spray systems (which discharge a continuous stream of foam water spray that quickly suppresses flames and cools hot surfaces).

The systems have a range of cylinder size options and are designed to provide early detection and warnings that allows extra time for drivers to safely evacuate, while also dousing any fires to minimise damage to vehicles.

Heat from a fire activates the linear or spot-detection devices, which are located strategically throughout the at-risk areas of the vehicle. The module then alerts the vehicle operator that a fire has been detected and activates the fire suppression process. The systems can also be operated manually.

Rely on trusted fire-safety experts

As with any fire suppression system, the stakes are high because lives and businesses can be lost in the event of a serious fire. So it is crucial for site owners and operators to engage a team of fire-safety specialists to offset such risks.

They can help identify the level of fire risk for a particular vehicle in its operating environment and then suggest and install workable and reliable fire-suppression systems that incorporate the most up-to-date technology.

With such protections in place, drivers and their heavy vehicles can back to what they do best.

Fires that destroy or damage heavy vehicles on mining, mass transit or other high-intensity sites can put lives and business at risk. So click here to find out more and contact Australia's leading provider of industrial fire suppression systems.

Also see: Bell Bay Aluminium case study

 

 

The Project

Bell Bay Aluminium is situated on the Tamar River, approximately 45 kilometres from Launceston, the smelter produces around 190,000 of aluminium each year and operates 24 hours a day, 365 days per year.

After some recent machinery fires, Bell Bay Aluminium needed their vehicles to be fitted with tailored fire protection systems to protect both their vehicles and their drivers.

The scope of work

Delta Fire needed to provide a highly workable and reliable system that incorporated the most up-to-date technology available. The system needed to be scalable for a range of machines ranging from small forklifts to large earth moving machines. The wheels and cabins of their entire range of vehicles needed protection in the event of a fire.

How We Went About It

Delta Fire worked in consultation with  Bell  Bay  Aluminium  and  Fire Solutions to provide a tailored heavy vehicle fire protection system that complied with international codes and standards. The system also needed to comply with Bell Bay Aluminium's OHS and risk assessment standards.

Results

Delta Fire provided the technical support for the initial 15 Amerex Dry Chemical Powder systems that we installed in their vehicles. The system provided utilises the Amerex SA2Z Panel with the ability for the system to be adjusted to suit should there be any requirements in the future dependent on the plant and/or the risks with the Amerex system facilitating a range of cylinder sizes.

What the client says

“We are very pleased with our vehicle fire suppression systems. They enable us to protect both our property and our people. We appreciate the professionalism displayed by Delta Fire and its representatives. Most importantly, we are impressed with their tremendous degree of safety precaution and expertise.”

David Cuthbertson, Director of Fire Solutions Tasmania