Custom Compressor Solution for Nutrien Allen Potash Mine
At Comairco, we recently had the opportunity to collaborate with Nutrien Allen Site Potash in Saskatchewan to deliver a customized solution that meets their underground emission management needs. Concerned about air quality and the harmful effects of diesel emissions in confined spaces, Nutrien required a reliable alternative to diesel-powered compressors for their underground operations.
Unfortunately, nearly all the standard electric air compressor packages on the market are optimized for the manufacturing sector, so many of the components are selected for a relatively clean, indoor environment. While these packages are rugged enough for the vast majority of industrial sites, they cannot account for the highly corrosive atmosphere of a potash site.
The client specifically requested an electric-powered compressor package that could be easily transported and operated underground. After careful consideration, Nutrien selected the Sullair 3709V, a 50 hp model, known for its durability and performance. Comairco took on the challenge of designing and assembling two specialized compressor packages to meet Nutrien’ s unique requirements.
Tailored Solution to Meet Specific Needs
The project took four months to complete, during which we built two trailer-mounted packages, each with dual axles for easy transportation. Nutrien needed a system that could handle the rugged underground environment, so we incorporated foam-filled tires to prevent punctures and damage. To further stabilize the units, each trailer was equipped with stabilizer jacks at all four corners.
Safety was another key concern for Nutrien. While they opted not to include the full fire suppression system we offered, they did choose to install fire extinguishers. Additionally, we integrated a phase monitoring panel to ensure correct voltage alignment during connection to the underground power supply. This precaution prevents any risk of phase mismatches, which could damage the compressor.
Sullair’s 3709V package includes an integrated variable frequency drive (“VFD”) as standard. Using the VFD to start the main motor eliminates current in-rush during startup, which eases the load on the underground electrical system. The VFD also allows the compressor to speed up and slow down to match supply to demand, saving significant electricity usage.
Built for the Toughest Conditions
The compressors were designed to be robust enough to spend their entire lifecycle underground, operating in tunnels ranging from 5 to 8 kilometers in length. One primary use is blowing down equipment, particularly cleaning off the boar heads used in tunneling operations. With the added convenience of 180 feet of cable, the units can be easily connected to the power grid wherever needed.
We also equipped the trailers with additional door latches to ensure the doors remain securely closed during transportation. D-rings were included to facilitate the lifting and maneuvering of the units in confined spaces underground.
Successful Delivery and Positive Feedback
Nutrien has been highly satisfied with the solution provided, especially regarding the ease of use and the attention to detail in the design. The units were delivered and assembled in Regina before being sent to the mine site, and since their deployment, the feedback from Nutrien has been overwhelmingly positive.
Comairco has been a critical supplier to the North American mining industry since 1972, and offers a wide variety of products and services related to air compressors, blowers, and vacuums. Compressor customizations have been an important part of Comairco’s business since day 1, and they now have the facilities and expertise to offer fully custom packages.
This project exemplifies Comairco’s commitment to providing tailored, turn-key solutions that meet the specific needs of our clients, especially in demanding environments like underground mining.
