Fan Noise Reduction for Air Conveyor Transport System
This is an example of one of our fan noise reduction solutions being applied in a factory within the food industry.
A fan-driven air conveyor system, called an "airveyor", is used to transport plastic bottles around the factory. Air from the fans is directed onto the bottles to blow them along the conveyor. The above photo shows one of the conveying fans. Several identical fans are spaced at intervals around each production line. There are two production lines, each with a different sized fan. The plastic bottles are made in blow mould machines at the same factory, from where they are transported by the air conveyors (airveyors) to filling machines which fill the bottles with cooking oil.
A survey found that the 85 dBA legal limit for workplace noise was exceeded in many areas of the factory, and high sound levels from the conveying fans (airveyor) were a major contributor. Our help was sought and our noise reduction measures were applied to each of the conveyor fans. This achieved a 6 dBA noise reduction. Sound levels fell below the 85 dBA limit, which satisfied the company and met the main requirement of the Control of Noise at Work regulations. The actual noise reduction achieved on the fans was about 9 - 10 dBA, but background sound from nearby production machines limited the reduction in the overall noise level to 6 dBA.
Prior to contacting us, the company had obtained a quote for fitting a noise reduction enclosure around the air conveyor system on both production lines. The cost was £130,000. Our solution cost below £3,000, which was £127,000 less than the noise reduction enclosure - saving the company a huge amount of money.
We have provided fan noise reduction solutions to many industrial, manufacturing, food, drinks and pharmaceutical companies throughout the UK. Our solutions often provide a higher reduction in fan noise than other methods, and / or large cost savings. For more information, please see our fan noise reduction page on the main menu, above.
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