The image above shows spillage of small alumina particles at an aluminum manufacturing plant in South America. This customer needed a method to vacuum the spilled material and return it to the main hopper. The ideal solution needed to be compact, simple, and provide repeatable results. All of these are key aspects of EXAIR Line Vacs, so we began discussing application variables to make a solution recommendation.
Whenever we consider Line Vac applications we always explore the following variables:
Bulk density of the material
Size of the material
Required conveyance rate
Available compressed air supply
The spilled alumina in this application has a bulk density of 1.1 g/cm³ (~68.7 pounds/ft³) which needs to be conveyed to a height of 3.3m (~11ft.). The conveyance rate is not mandated, but the alumina particles are rather small in diameter and the customer wanted to move as much material as possible in as little time as possible. Compressed air is readily available at proper pressures and flows, so we were left to determine whether a Line Vac could be a viable solution. Fortunately we’ve found success in transferring alumina with our Line Vacs in multiple applications before, so we were confident we could find a solution here as well.
After exploring the specifics of this application we determined the best solution to be the 2” Heavy Duty Line Vac model 150200. The 150200 Heavy Duty Line Vac can easily move the alumina to a height of 3.3m at an estimated conveyance rate of 11kg/minute (25 pounds/minute). There are no moving parts to wear out, which means little to no maintenance and reliable performance each time the Line Vac is used.
Our local distributor assisted with product procurement and in-country technical support. So even though this customer was in a different continent, we were able to quickly get them the assistance and products they needed to solve their problems.
If you have an application and would like to work with an EXAIR Application Engineer, give us a call and we’ll be happy to help. 1-800-903-9247.
When attempting to convey material pneumatically it can sometimes not work as one may hope. This could be due to the lack of ambient air entrainment to generate the vacuum flow which lifts the material away and moves the material. The video above gives a brief example of this.
If you would like to discuss pneumatic conveying products or processes, please contact us. EXAIR’s Line Vac air operated conveyors are a great solution for manual “bucket and ladder” applications, hopper loading, scrap conveyance, media recovery and more!
If you are like me and love to garden we are approaching the time of year that we start seeding our longer maturing plants like tomato and pepper plants. I have made my purchases of seeds, plant packs, soil and plant food. I am ready and excited for the gardening season.
EXAIR has many applications where our products help the agricultural industry. The use of our Air Knives, atomizing spray nozzles and Line Vacs help assit in the growing, cleaning and movement of products.
EXAIR Atomizing Spray Nozzles atomize fluids (most commonly water) in a range of spray patterns for a variety of uses. These nozzles can be used to keep soils moist, environments humid and also for cleaning the harvested products. The Atomizing Spray Nozzles come in a variety of sizes, styles and spray patterns and can be sized specifically for your application.
EXAIR Air Knives can also be used for cleaning where moisture is a concern before products are placed in packaging containers. Our Air Knifes come is many stock sizes and styles. EXAIR Air Knives are a great option replacing noisy blow-offs and show noise and air consumption reductions.
EXAIR Line Vacs have been used to move grains, soil, sand, wood chips and other products saving labor. They are ideal for moving large volumes of material over long distances. The material flow rate is easily controlled by the size of the Line Vac and by the use of a pressure regulator. No moving parts or electricity assures maintenance free operation.
Just as I am excited to strategize my garden, EXAIR can take the frustration of your projects away and make your life as as exciting and fun as Spring and Summer home gardens. If you have a specific application you would like to discuss you can visit us at www.EXAIR.com or by calling 800.903.9247 and talking to me or any of our qualified Application Engineers.
Most any air compressor is going to have a receiver tank…from the “pancake” types that might hold a gallon or so, to the large, multi-tank arrangements that facilitate both cooling and drying of compressed air in major industrial installations. The primary purpose of these receiver tanks is to maintain proper operation of the compressor itself…they store a pressurized volume of air so that the compressor doesn’t have to run all the time. Receiver Tanks, however, can also be used to eliminate fluctuations at points of use, especially in facilities where there might be a lot of real estate between the compressor and the compressed air consuming products.
I recently had the pleasure of discussing an Line Vac Air Operated Conveyor application with a caller. The need was to move wood chips, from inside to outside the plant, into trailers. The facility has plenty of compressed air to operate the Line Vacs (the application calls for several) but because the point of operation is so far from the header, they’ll need a “stash” (the caller’s words…we call it “intermediate storage” but he’s not wrong) of compressed air to keep the Line Vacs supplied for operation without any dips in performance.
Enter the Model 9500-60 60 Gallon Receiver Tank. When an application requires an intermittent demand for a high volume of compressed air, the Receiver Tank provides intermediate storage (or a “stash” – that word’s growing on me) to prevent pressure fluctuations and the associated dips in performance.
The Model 9500-60 has a small footprint for where floor space is at a premium, and meets ASME pressure vessel code specifications. It comes with a drain valve so you can discharge condensate and contaminants. A check valve (not included) can be installed upstream to maintain the tank at max pressure so it doesn’t ‘back feed’ other upstream uses.