Hammer Rash - sounds like a serious medical condition doesn't it? All of us who have been involved in dry material flow and storage problems have seen this 'physical phenomenon' around the discharge section of silos, hoppers baghouse filter plants etc.
Although it creates more problems than it cures, it is understandable why it happens - a night shift plant operative finds that one material will not flow out of one of his blending silo so he resorts to his previous 'trick' of hitting the hopper section with hopefully a rubber hammer. However the hammer is missing so he uses the first available alternative - an iron bar - and proceeds to give the metal hopper section a good 'thrashing'.
It is really so easy to avoid having to resort to such a destructive action, simply by employing sound waves of a particular frequency into the material which ensures that it will always flow at maximum discharge rate without the need for any manual intervention. The picture shows clearly both the problem and the solution. This is one of several gypsum discharge silo hoppers which suffered quite extensive 'hammer rash' damage. The expensive solution was to empty all the silos, chop of the existing battered hoppers and replace with new - quite an expensive and time consuming solution. The much easier, cheaper and totally effective solution was to install a 420 Hz frequency acoustic cleaner. The result was that although the hopper was in really bad shape, the acoustic cleaner prevented any discharge blockage from occurring and maintained maximum flow rate.
Innovative, easy and effective solution to eliminate hopper plugging!
Although it creates more problems than it cures, it is understandable why it happens - a night shift plant operative finds that one material will not flow out of one of his blending silo so he resorts to his previous 'trick' of hitting the hopper section with hopefully a rubber hammer. However the hammer is missing so he uses the first available alternative - an iron bar - and proceeds to give the metal hopper section a good 'thrashing'.
It is really so easy to avoid having to resort to such a destructive action, simply by employing sound waves of a particular frequency into the material which ensures that it will always flow at maximum discharge rate without the need for any manual intervention. The picture shows clearly both the problem and the solution. This is one of several gypsum discharge silo hoppers which suffered quite extensive 'hammer rash' damage. The expensive solution was to empty all the silos, chop of the existing battered hoppers and replace with new - quite an expensive and time consuming solution. The much easier, cheaper and totally effective solution was to install a 420 Hz frequency acoustic cleaner. The result was that although the hopper was in really bad shape, the acoustic cleaner prevented any discharge blockage from occurring and maintained maximum flow rate.
Innovative, easy and effective solution to eliminate hopper plugging!
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