Heat Tracing for Mining and Remote Sites
Mining operations freeze in the same ways as any plant: water lines, slurry lines, reagents and concentrate lines all need protection in cold climates. But mining sites bring their own constraints — remote locations, limited maintenance crews, abrasive and corrosive environments, and seasonal access.
Where heat tracing is used on a mine site
- Water supply and dewatering lines
- Slurry and concentrate pipelines
- Reagent and flocculant lines
- Fire water and dust suppression piping
- Diesel and fuel lines
- Instrument and sample lines at the process plant
Design points
1. Remote sites need reliability, not complexity
When the nearest technician is hours away, simple, robust circuits with clear alarms are better than sophisticated control schemes that nobody can troubleshoot.
2. Power quality
Remote sites often have weak or fluctuating supply. Check voltage at the panel under load, size circuits with margin for voltage drop, and protect against brownouts that reset controllers.
3. Abrasion and corrosion
Slurry and concentrate lines, and areas with dust or chemical spillage, need mechanically protected cable and sealed enclosures. Choose jacket and enclosure materials for the site environment.
4. Slurry and concentrate lines
Slurry can settle and set if it cools; maintain temperature to keep it pumpable. Consider that the product may be abrasive and that line cleaning may disturb the cable — protect cable at flanges, valves and cleaning points.
5. Seasonal access
Install and commission before the winter access window closes. Spare parts should be on site before winter, because shipping delays are longer for remote locations.
6. Control and monitoring
Remote monitoring pays for itself on remote sites: an alarm that reaches the control room (or a phone) prevents a freeze event from being discovered by a blocked line.
Common mistakes on mine sites
- Designing for the "average" winter rather than the design minimum.
- Ignoring voltage drop on long runs from a central power house.
- No spares on site when a cable or thermostat fails in the middle of winter.
- Control panels that need a specialist to troubleshoot.
- Cable exposed to abrasion from vehicles, tools or slurry spills.
What to provide for a quotation
| Item | Information |
|---|---|
| Site | Location, design ambient, access constraints |
| Lines | Service, pipe size, length, insulation |
| Power | Supply, distance from panel, backup |
| Environment | Dust, chemicals, washdown, hazardous areas |
| Maintenance | Who is on site and how often |
Topic hub: Heat Tracing by Industry (Applications)
Mining site project?
Send the line list and site conditions. We propose robust tracing with remote monitoring for remote sites.
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