Tag: static dust

Removing Debris from Jars Prior To Filling

Published on by Lee EvansLeave a comment
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These PET jars needed a way to remove static dust prior to filling with product

Back in the spring of this year I had some interaction with a customer in India about a Vortex Tube application.  At the time, they were facing an overheating condition and needed some guidance as to which model would provide the best solution.

Fast forward to this week and this same customer reached out to me again, this time for a static problem.  The application in question was plagued with difficulty in removing small dust particles from the inside of PET jars (shown above).  The jars range from 220-260mm in height (8.6”-10.25”), 80-100mm (3.1”-4”) in diameter, and travel through the process at a speed of ~40 units per minute.

Due to static charge, the dust in this application would adhere to the inside of the jars, presenting a problem with filling during the next stage of the process.  What this customer needed was a way to remove the static, blow away the dust, and then pull a slight vacuum on the jars as a safeguard against any remaining dust.

The solution was to use the Stay Set Ion Air Jet to blow into the jars, removing the static and blowing away the dust, followed by a Super Air Amplifier to remove any dust particles which were not removed by the Ion Air Jet.

The customer was happy with this solution, but there was a bit of hesitation as to whether the Air Amplifier would be able to truly remove debris from the jars.  In an effort to visualize the effects of an Air Amplifier on this type of application I made the short video below.

This video shows paper pieces inside of a cylinder of comparable height to the jars in this application.  After the paper is placed in the cylinder the model 120021 Super Air Amplifier is used to pull the paper out of the cylinder, mimicking the effect it will have on residual dust in the customer’s application.  After seeing the video the customer was confident in the application solution.

Providing this type of assistance for our customers is nothing new for us at EXAIR.  We’re available via phone, online chat, or email for all of our customers, and commit to taking the time needed to really provide the assistance needed.  If you find yourself in need of solid engineering support for an application in your facility, contact an EXAIR Application Engineer.

 

Lee Evans
Application Engineer
LeeEvans@EXAIR.com
@EXAIR_LE

Super Ion Air Knives Remove Dust from Plastic Panels

Published on by Lee EvansLeave a comment
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Conveyor line with static dust problem

One of our distributors reached out to me this week about a static elimination application in Russia.  The end user has the setup shown above, and they are in need of a means to remove dust from the plastic panels on the conveyor.  These panels have a static charge causing ambient dust to adhere to their surfaces.

The main questions for this application were whether we could provide a solution capable of creating a static eliminating blow off for the entire width of the conveyor (approx. 54”), and whether the dust particles can be removed from the working area after removal from the plastic panels.

In order to answer the first question we first had to select a solution, and the Super Ion Air Knife is a near-perfect fit.  We can provide Super Ion Air Knives in any length up to 108”, with a stock length 54” unit available on the shelf.  This was a straightforward recommendation to remove the static from these plastic sheets – install one 111054 54” Super Ion Air Knife on the top and bottom sides of this conveyor to remove the static and blow off the dust.  But, the second question will require a more specialized solution.

When static causes dust to adhere to a surface, removal of the static charge allows the dust to fall off or be blown away, so we were confident that we can remove the static and dust.  But, we then need to vacuum these dust particles away – something we could achieve with a series of Super Air Amplifiers or Line Vacs – which will require some sort of specialized hood.  Fortunately for us, this application already has a vacuum control system with a hood (you can see this in the right side of the photo with a large plastic air duct running to the top and bottom hoods on this conveyor line).

So, problem solved!  We recommended the two Super Ion Air Knives are installed with the airflow aimed at a 45° angle of attack, opposite the direction of travel, and with the airflow aimed into these vacuum hoods.

If you have a similar application or static problem in your facility, give us a call, we’ll be happy to help.

Lee Evans
Application Engineer
LeeEvans@EXAIR.com
@EXAIR_LE