Our distributor in Peru recently contacted me with an application they were working on with a customer of theirs that deals in the mining industry. They are one of the largest gold mining companies in South America and were looking for a means of keeping their saw blades cool without having to use any type of coolant or water.
In this specific application, they had been using water to maintain the temperature of the blade while cutting. While this did work, it created quite a mess and also resulted in product contamination. The water on the floor presented a slipping hazard and production would have to periodically be halted so that someone could come by and clean the mess off of the floor. So, not only were they creating a contamination issue, but also a safety concern as well as lost production time.
Our distributor introduced them to EXAIR and our line of Cold Gun Spot Cooling Products. By replacing the water cooling with (2) Model 5230 Cold Gun systems, they were able to maintain the temperature of the blade at 24°C (75°F), well within their specifications. This allowed them to completely eliminate the need for water as a cooling method, improving their worker safety as well as increasing production.
EXAIR’s Cold Gun utilizes Vortex Tube technology to create two streams of air: one hot and one cold. The hot air is muffled and exhausted, while the cold air is also muffled and ducted to deliver a cold stream of air directly onto the material needing to be cooled. With only a supply of clean, dry compressed air required to operate, installation is quick and easy. Since the Cold Gun has no moving parts to wear out, there’s also no maintenance required so long as the Auto-Drain filter included in the kit is installed upstream of the Cold Gun.
If you’re tired of dealing with messy water-based cooling systems or equally messy coolants, give an Application Engineer a call today and try out a Cold Gun. With our Unconditional 30 Day Guarantee, there’s absolutely no risk to do so!
I have recently had the pleasure of working with a customer developing a method of delivering air to trapped miners during a multi-man mine rescue mission. The federal government mandates that in the event of an explosion, miners must have a safe place to retreat for a minimum of 96 hours. This system will provide them with a supply of air during that period of time. In the initial stages, they had tried using some old venturis left over from a previous project. While this did work, they weren’t as effective or efficient as they needed. Through a little bit of research, they found EXAIR.
Instead of using compressed air as the source, they’re using cryogenic liquid air. That air passes through a series of cold plates and heat exchangers and gets to the Super Air Amplifier at about 70°F. This air is then carried into the chamber, giving the miners a source of clean air.
EXAIR Super Air Amplifiers utilize a patented shim design that allows the unit to entrain ambient air at a rate of up to 25:1 from the compressed air supply. This balanced outlet airflow minimizes wind shear, producing sound levels that are typically three times quieter than other air movers. The Super Air Amplifiers are supplied with a .003” slotted air gap and can be adjusted by replacing the shim with a thicker .006” or .009” shim.
Do you have a cooling or drying application that could benefit from a Super Air Amplifier? Contact an Application Engineer today to find out how EXAIR can help you save compressed air in your application!
If you were to look at a graphical representation of the exports from some countries (such as Chile), copper, copper alloys, and other metals would dominate over 50% of the graph. In order to get all of those metals exported out of the country, they first have to be mined and, in many cases, separated from other, undesirable items, such as rocks or dust. And, in order to separate the materials, many end users place the products on a conveyor and blow off what isn’t wanted.
We receive calls and emails at EXAIR regularly for these types of applications. Recently, I received one such email about an application in need of dust and dirt removal from a conveyor during a mining operation. The conveyor belt had become overrun with dirt and debris that couldn’t be removed by conventional means. So, the end user sought an alternative, and permanent solution.
It was at this point that the Super Air Knife was considered, and after measuring the width of the conveyor we realized a stock model 110018 would work well. Following installation of the Super Air Knife, the dust and dirt was removed to within an acceptable level, and the end user sent me the pics below.
If you have an application that may benefit from an EXAIR solution, contact one of our Application Engineers.