--- title: 3 Ways To Reduce Dusting When Discharging Bulk Bags description: "Control and Metering Bulk Bag Blog: Find out how to discharge bulk bags without creating dust!" --- [![](http://academy.spiroflowsystems.com/hubfs/Logos/Spiroflow-Logo.jpg "Spiroflow-Logo.jpg")](http://www.spiroflowsystems.com) [![](http://academy.spiroflowsystems.com/hubfs/Logos/US-US-Phone-Numbers.jpg "US-US-Phone-Numbers.jpg")](http://www.spiroflowsystems.com) - [Home](http://www.spiroflowsystems.com/) - [About Us](http://www.spiroflowsystems.com/about-us/) - [Products](http://www.spiroflowsystems.com/equipment/) - [CTE Bulk Bag Filler](http://www.spiroflowsystems.com/equipment/bulk-bag-fillers/technical.cfm?id=52) - [Cone Table Densification](http://www.spiroflowsystems.com/equipment/bulk-bag-fillers/technical.cfm?id=52) - [Model AC Bulk Bag Filler](http://www.spiroflowsystems.com/equipment/bulk-bag-fillers/) - [Model S Bulk Bag Filler](http://www.spiroflowsystems.com/equipment/bulk-bag-fillers/) - [Model AV Bulk Bag Filler](http://http://www.spiroflowsystems.com/equipment/bulk-bag-fillers/) - 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Excessive dusting during discharge obviously causes a mess requiring additional clean up labor.  However, it can cause significant profit reduction because every pound of product that lands on the floor reduces ingredient yield and increases input costs. #### Dusting Can Be Costly! We know of a food manufacturer whose bulk bag discharging stations create a lot of dusting during unloading.  A plant visit confirmed the mess made during bulk bag discharging, but curiously their floors are always spotless!   The plant has hose bibs EVERYWHERE, which encourages cleaning.  Seemingly a good thing.   However, a thorough analysis of their ingredient yield showed that they were losing approximately $300,000.00 annually due to poor yield: TONS of product - along with a good chunk of profit - were being washed down the drain! While it's true that not all of that waste was directly attributable to dusting from bulk bag dischargers, most of it was. So, not only is dusting during bulk bag unloading a nuisance and housekeeping issue, it can quickly affect - negatively - the bottom line. #### What can be done? 1. **Training**.  The biggest issue we see with the use of bulk bag dischargers is that operators are not following the manufacturer's operating instructions.  Regardless of the equipment used to unload bulk bags, if it is not used properly optimal dust containment cannot be achieved.  Left to their own devices operators will quickly figure out the easiest way to get product out of the bag - and that often leads to unecessary dust emissions.  Easy operation sounds like a good thing, but the reality of discharging bulk bags is that they require some effort to use properly.  Work with your bulk bag discharger vendor to fully understand how their equipment should be used to best effect and then train and supervise your operators accordingly. 2. **Bulk bag design**.  We often see situations where fine product sifts through the fabric of bulk bags.  If that sounds familiar your ingredient vendor should be willing to work with you to provide a bulk bag that eliminates this problem.  The easiest solution is to used coated bulk bags that feature a film of polypropylene bonded to the inner surface of the bag fabric.  This should cure most sifting problems.  However, if a coated bag isn't enough your vendor should be using a separate polyethylene liner. 3. **Bulk Bag Discharging Equipment**.  Bulk bag dischargers come in many configurations.  Some are better than others when it comes to dust containment.  Look for designs that allow easy  and safe access to the bag outlet spout while keeping it enclosed in a hopper that can be connected to a vacuum dust collection system.  However, not all of these designs are created equal!  If the hopper that is under negative pressure is filled with product during discharging, dusting will still be a problem when the hopper door is opened and product that has adhered to the inside of the door drops on the floor.  Ideally, the outlet spout of the bulk bag should protrude out of the hopper during discharge so the only time the hopper sees dust is during the initial stage of product flow and perhaps at the end of the discharge cycle.  Ergonomics are also a key criteria when selecting a bulk bag discharger.  As mentioned above, you don't want your operators circumventing Standard Operating Procedures and creating excessive dusting because the bulk bag discharger is too difficult to use properly.  Carefully evaluate dust containment features and ergonomic design when selecting a bulk bag discharger. Topics: [bulk bag](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag), [bulk bag discharging](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-discharging), [bulk bag handling](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-handling), [bulk bags](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bags), [bulk bag unloader](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-unloader), [bulk bag unloading](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-unloading), [bulk bag discharger](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-discharger), [bulk solids](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-solids) ### Subscribe by Email ### Most Popular Posts ### Latest Posts ### ![latest post top](https://academy.spiroflow.com/Portals/41946/images/browse_by_tag.png) - [50 Kg bags (1)](https://academy.spiroflow.com/resource-hub/blog/topic/50-kg-bags) - [aero mechanical conveying (3)](https://academy.spiroflow.com/resource-hub/blog/topic/aero-mechanical-conveying) - 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