Mining equipment such as haul trucks, excavators, loaders, drilling machines, and conveyor systems represent high-value investments that operate in some of the most demanding environments. Constant exposure to heavy loads, combustible fluids, dust, heat, and electrical systems increases the risk of fire incidents. Even a minor fire can escalate rapidly, resulting in equipment damage, costly downtime, and most importantly, risk to human life.
The Automatic Fire Detection and Suppression System (AFDSS) for mining is specifically engineered to address these risks. The system integrates early fire detection sensors, robust suppression agents, and automatic activation mechanisms to deliver a reliable and instant response in the event of a fire.
Detection Subsystem
Fire Detection
Linear Heat Sensing (LHS) Cables: Detect rising temperatures and trigger alarms at pre-set thresholds.
Smoke/Flame Sensors: For early detection in electrical enclosures and high-risk zones.
Control Panel: Centralized unit for monitoring, alarm initiation, and actuation of suppression.
Suppression Subsystem
Agent Cylinders: Stored-pressure cylinders charged with suppression agent.
Distribution Network: High-pressure hoses, nozzles, and fittings designed to disperse agent efficiently.
Discharge Mechanism: Automatic and manual actuation options for redundancy.
Suppression Agents
AFFF (Aqueous Film Forming Foam): Effective for Class A (solid combustibles) and Class B (flammable liquid) fires, commonly found in diesel-operated equipment.
Dry Chemical Powder (DCP): Rapid knockdown of fuel and electrical fires in harsh environments.
Clean Agents (e.g., FK-5-1-12, Novec 1230): Non-conductive, ideal for electrical cabinets and sensitive enclosures.
Standards and Compliance
The Heelix system is designed in accordance with:
NFPA 17 & NFPA 2001 – Standards for dry chemical and clean agent suppression systems.
ISO 19353 Fire prevention for industrial equipment.
UL & FM Approvals – Compliance for system reliability and safety.
DGMS (Directorate General of Mines Safety – India) guidelines and local statutory mining safety requirements.
Benefits
Automatic 24/7 Protection: – Detects and suppresses fires without human intervention.
Reduced Downtime – Minimizes operational interruptions and equipment loss.
Personnel Safety – Enhances safety for operators and ground staff.
Engineered Reliability– Ruggedized for extreme vibration, dust, and temperature conditions typical in mining.
How We Engineered Our Fire Suppression Component
Understanding the Risk
We began by analysing the environments where fire risks are most severe—vehicle engine compartment and occupant area, electrical enclosures, and industrial panels. Our team mapped out ignition sources such as short circuits, overheating, and arc flashes. This formed the baseline of our engineering approach.
Design Philosophy
Our guiding principles were:
Early Detection – identify the fire in its incipient stage.
Rapid Suppression – deliver extinguishing agent precisely at the source.
Reliability – system must activate autonomously without human intervention.
Compliance – align with AIS 135 (MoRTH India), NFPA, and other global standards.
Material Selection
Detection Tubing: Engineered with a proprietary polymer blend that reacts instantly to heat and flame.
Agent Storage Vessel: Lightweight, corrosion-resistant alloy, tested for pressure endurance.
Nozzle & Fittings: Precision-machined components designed for uniform agent discharge with zero leakage.
Testing & Validation
Thermal Cycling: to ensure durability across harsh temperature ranges.
Vibration and Shock Tests: for vehicle-mounted systems.
Agent Flow Analysis: using CFD simulations to optimize discharge patterns.
Live Fire Trials : in controlled test cells to validate extinguishing efficiency.
Integration with Systems
Compact design for seamless installation inside bus electrical panels, engine bays, or industrial cabinets.
Modular construction allowing for both direct-release (detection tube bursts and discharges agent) and indirect-release (tube triggers valve to discharge agent through nozzles).
Compatibility with multiple clean agents (FK 5112, FM-200, ABC dry chemical, etc.) depending on application.
Safety & Reliability
Fail-safe activation (no reliance on electronics).
Zero-maintenance tubing with long service life.
Environmentally responsible suppression agents with zero ozone depletion potential.
Outcome
The result is a robust, automatic fire suppression component that ensures:
Minimal downtime of equipment
Reduced risk of secondary damage
Peace of mind for operators and fleet owners