PortaThaw

PortaThaw Frozen Mining Haul Truck CAT

porta-thaw-cold-start-system-system-logo
Cold Start System

  • Quick coupled PortaThaw® system safety starts multiple trucks and equipment in the harshest winter climates

OVERVIEW

PortaThaw® Cold Start System is a diesel fired coolant heater designed for rapid warm up of frozen equipment. PortaThaw® connects up to the Thermex Quick Coupler Assembly. Coolant hose lines are installed to / from the engine block to the Quick-Coupler manifold on any type of heavy-duty piece of equipment. This installation takes about 4-6 man hours.

PortaThaw® pumps coolant from the frozen vehicle’s engine, through it’s heat exchanger, which rapidly warm’s up coolant, then back into the vehicle’s engine block; thereby safely bringing up to a starting temperature. This cycle is repeated until the engine coolant has reached desired operational parameters. Unit will then shut-off heating cycle but continue to circulate coolant and monitor temperature until operator shuts down, disconnects, and precedes with engine start-up.
This process can usually be executed in less than an hour depending upon the size of the equipment or vehicle. Using PortaThaw® is one of the fastest methods of asset recovery today.

PortaThaw® Documentation

PortaThaw Cold Start System

BENEFITS

In mining fleets, PortaThaw® is primarily used for Asset Recovery. During winter, the term “Asset Recovery” refers to a critical 3 hour window wherein a broken down machine must be restarted and moved away from the pit before it becomes an immobilized mass of cold-soaked pig iron. The traditional method of warming up an engine to facilitate restarting is to surround the entire machine with a parachute tarp and then blow hot air into it from a diesel-fired air heater. This can easily consume 6-8 hours on a good day and most often rolls over to a second shift before the engine can safely start again.

PORTATHAW® COLD START SYSTEM - MODELS & FEATURES

PortaThaw® PT-50

Compact roll cage frame made from 1.5” steel tubing. The unit is equipped with a protective hood that shelters the burner assembly from any immediate weather. A high limit temperature sensor to ensure the unit will not overheat. This sensor will switch the burner off once the coolant temperature has reached 180° F.

PortaThaw® PT-100

Roll cage frame made from 1.5” steel tubing with a 14 gauge steel checker plate deck. The unit is equipped with a protective hood that shelters the burner assembly from any immediate weather. A high limit temperature sensor to ensure the unit will not overheat the engine block of the vehicle. This sensor will switch the burner off once the coolant temperature has reached 180° F. The PT-100 comes with a 12’ pair of prewired jumper cables for 2VDC connections and a 120VAC transformer with extension cord for any generator or shore power connections.

PortaThaw® PT-200

The performance features of this model are identical to the PT-100 however the PT-200 boasts some big upgrades such as; a heavy duty skid frame base with forklift pockets and lifting eyes for various modes of transport, 14 Gauge steel protective enclosure with 3 locking swing doors, 2 each 40’ spring loaded hose reels for equipment hook up, etc. A Flame Control Monitor that keeps a watchful eye inside combustion chamber to be sure the unit is operating safely unattended. In the case of a possible safety hazard, the Flame Control Monitor will perform an emergency shutdown on the PortaThaw®.

Cold Start System – Business Case

PortaThaw® Cost-Benefit Analysis

Unit Cost : $10,000
Quick-Coupler Manifold Kit : $400
Installation : $500 – $800

Installed Cost : $11,000

 

Example of a broken down CAT 797 Haul Truck, with lost revenue until unit can be put back into service:

  • Each 797 load of oil sands ore results in 172 barrels of oil
  • Each 797 hauls approximately 3 trips per hour on an oil sands haul
  • At 172 barrels/trip x 3 trips/hour = 516 barrels/hr
  • Each barrel sells for approximately US $33 x 1.29 = C $42 (as of August 26, 2016)
  • As a result; each hour a 797 hauls approximately $22,000 of oil or $264,000 in a 12 hour shift.

 

PortaThaw warm up time = 1 hour

Lost production during typical warm-up (1 shift) = $264,000

Lost production during PortaThaw warm up = $22,000

 

Total Production Opportunity Saved = $242,000

Payback period: 65 minutes of use

Example of a Komatsu PC5500 Shovel after Planned Maintenance shut-down. Lost revenue until unit can be put back into service:

  • Each bucket load is 40 tons
  • Each bucket load results in 6 barrels of oil
  • Number of buckets loaded: 800 buckets/day average.
  • Revenue of ore per hour is approx. $8,500 or $102,000 per 12 hour shift.

 

PortaThaw warm up time = 2 hours (2 engines)

Lost production during typical warm-up = $306,000 (usually 3 shifts required)

Lost production during PortaThaw warm up = $17,000

 

Total Production Opportunity Saved = $289,000

Payback period: 1.25 hours of use