Heavy Duty Line Vac Saves Backs and Shoulders!

Recently, I worked with a customer that was looking for a way to make a difficult job easier, reducing stress and strain on the body and preventing injury.  The customer was in the Environmental Services & Hazardous Waste Management area and regularly was called out to service acid neutralization tanks. These are commonly found in hospitals, laboratories, and schools, to neutralize lab wastewater before it is discharged to the sanitary sewer.  The systems typically utilize limestone chips to aid the in process.

Acid Neutralization Tank
                       Typical Acid Neutralization Tank Layout Sketch

Periodic maintenance includes the removal and disposal of the spent limestone chips, tank cleaning and replenishment with new limestone chips.  Some of the tanks are tall and narrow, making access to the limestone chips difficult, especially near the tank bottom. Current procedures involved small shovels and unnatural body positions to try to reach the bottom-most material.  A better way had to be found.

The customer came across the EXAIR website and found the Line Vac product line. After watching the demonstration video, he knew he had found his solution!  The Line Vac is a compressed air operated device that turns any hose or tube into a powerful in-line conveyor. Based on the height of the tanks and the size and weight of the limestone, we agreed the 2″ Heavy Duty Line Vac would provide the power and durability to empty the tanks in a timely manner, and safely and efficiently.  The customer would use a tow behind compressor so that a reliable source of compressed air would always be available.

hdlvkit (2)
Heavy Duty Line Vac Kit – Includes Auto Drain Filter Separator and Pressure Regulator

The Heavy Duty Line Vacs are available in sizes from 3/4″ up to 3″ in both smooth end and threaded connections for use with hose or pipe for conveyance.

To discuss your application and how an EXAIR Line Vac can make your transfer process easier and safer, feel free to contact EXAIR and myself or one of our other Application Engineers can help you determine the best solution.

Brian Bergmann
Application Engineer

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Versatile, Efficient And Quiet: The EXAIR Super Air Knife

It would be a memorable day in Application Engineering if one of us didn’t handle at least one call regarding a Super Air Knife. They’re just used for so many different purposes: from debris blow off, to drying, to cooling – in fact, a good number of “Super Air Knife calls” start as “Vortex Tube calls,” because both have their place, depending on factors such as how hot the part to be cooled is, what temperature you want to get it to, how fast does it need cooled, etc. More on that here, and here…today, I’m going to write about environmental containment and separation.

In a nutshell, that means keeping smoke, fumes, powder, etc., inside an area, or at the very least, away from another area. A couple of examples of this are documented in the Super Air Knives section of our latest catalog. If you don’t have one, click here.

The first features:

lens clearing
(2) Model 110024 24″ Aluminum Super Air Knives, which keep the smoke from machining oil that burns off during an engine test directed into the vent hood.

The second utilizes:

A Model 110006 6" Aluminum Super Air Knife to keep the slag, spatter, and smoke from a laser cutter away from the lens of the machine's visual inspection system.
A Model 110006 6″ Aluminum Super Air Knife to keep the slag, spatter, and smoke from a laser cutter away from the lens of the machine’s visual inspection system.

A third, which I don’t have pictures of yet because it’s brand-new, is a little larger scale: a recent caller was looking for a way to keep ALL the powder inside his powder coating spray booth. There’s an open vent with runs all the way across the top, and, when the booth is in operation, a very small plume exits along its 90″ width. They purchased a Model 110296 96″ Aluminum Super Air Knife Kit to blow a continuous curtain of air across this 4″ wide gap, angled down slightly into the booth. The Kit’s Pressure Regulator allows them to “dial down” the air flow to a level just high enough to keep the powder from exiting the gap, but also low enough to not disturb the powder coating process inside the booth.

A self contained blower unit was actually their first idea…these are very popular for large doorways…you’ve probably even seen them on large doors on shipping docks, or forklift paths inside plants where it’s necessary to keep pollutants from one room from entering another. For this situation, though, the compact size, low sound level, and precise adjustability of the Super Air Knife’s air flow made it the logical choice.

If you’d like to know more about EXAIR Super Air Knives, or any of our Intelligent Compressed Air Products, give me a call.

Russ Bowman
Application Engineer
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EXAIR Products Continue To Deliver Solutions

SIAK Curtain For Car Body Blowoff

Years ago when I first joined the EXAIR team, I spent time going through the current and old catalogs, newsletters, press releases, and case studies to learn about the products.  One of the applications that stood out to me, probably because of my background in the automotive industry, was the use of our Super Ion Air Knives to remove static from a car body prior to painting.  In this application EXAIR Super Ion Air Knives solved a static related problem causing imperfections in the paint process.

A year or so later I was in a Ford factory in St. Petersburg, Russia, discussing the same application.  When they asked if we had ever solved a similar problem, I could say with certainty that we had.

Now, a few more years later, another auto manufacturer has contacted me, looking to solve the same problem.  So, it is again with certainty that I can confirm we have solved this problem.

Often, EXAIR products are used within a new application.  Whether it is the use of a Line Vac to pull material through the center of a metal detector (vacuuming the “found” items), or separating concrete and plastics through the airstream of a Super Air Knife at a recycling center, the new uses of our products are found daily.

And yet, there are tried and true solutions in which EXAIR products continue to deliver.  If you have a problem in need of a compressed air based solution, we’re here to help.

Lee Evans
Application Engineer
LeeEvans@EXAIR.com
@EXAIR_LE

Super Air Knives Used To Deflect Fumes and Smoke from Furnace

One of our overseas distributors had an interesting application in a foundry. Their customer has a large furnace that opens at various times for a variety of reasons. When the furnace doors open, smoke and fumes come rolling out of the furnace. The customer has a large vent hood type system to aid in removal of these fumes and smoke. Unfortunately the vent does not capture all the smoke when released. So, the customer devised a plan to mount (4) model 110042SS 42” Stainless Steel Super Air knives onto large masts to get them up high enough to create a “ceiling” of air that would deflect the smoke into the vent hood for removal. Following are a couple of photos of the set up.

SAK2 sak1

Below is a photo of the control cabinet housing the filter and regulator equipment.

SAK3

Previously, the customer had nothing in place to assist the vent hood. Now they do and are quite happy with the result.  There were some small system adjustments that needed to be made, but once fully operational, the Super Air Knifes performed well to help reduce the overall pollution seen within the area.

Neal Raker, Application Engineer
nealraker@exair.com