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Cleaning | SanitationFood Safety

Field Reports

Enclosed Wet Cleaning Improves Food Safety, Increases Product Changeovers

National Frozen Foods Corp. installed a tubular cable conveyor system from Cablevey Conveyors to improve cleaning efficiency

By Sharon Spielman
FE August 2021 Wet cleaning system1 Cablevey. Photos courtesy Cablevey Conveyors
Photos courtesy Cablevey Conveyors

Because tubular cable conveyors are enclosed, they can be quickly and effectively flooded with water, flushed, rinsed, cleansed and thoroughly sanitized without disassembly, Photos courtesy Cablevey Conveyors

FE August 2021 Wet cleaning system 2 Cablevey. Photos courtesy Cablevey Conveyors
Photos courtesy Cablevey Conveyors

Cablevey Conveyors’ wet cleaning process internally cleans in several steps, starting with a water rinse followed by a foaming agent, a sanitizing rinse and final water rinse. Photos courtesy Cablevey Conveyors

FE August 2021 Wet cleaning system 3 Cablevey. Photos courtesy Cablevey Conveyors
Photos courtesy Cablevey Conveyors

Cablevey Conveyors tubular conveyor is clear except for the clamps so staff can visually check anytime. A cleaning inspection option involves a small, lighted camera system, with video inside the tubes viewable on a smart phone via an app. Photos courtesy Cablevey Conveyors

FE August 2021 Wet cleaning system 4 Cablevey. Photos courtesy Cablevey Conveyors
Photos courtesy Cablevey Conveyors

Thorough, wet cleaning can be accomplished without disassembly, reducing downtime and eliminating the need for unnecessary additional dedicated conveyor lines. Photos courtesy Cablevey Conveyors

FE August 2021 Wet cleaning system1 Cablevey. Photos courtesy Cablevey Conveyors
FE August 2021 Wet cleaning system 2 Cablevey. Photos courtesy Cablevey Conveyors
FE August 2021 Wet cleaning system 3 Cablevey. Photos courtesy Cablevey Conveyors
FE August 2021 Wet cleaning system 4 Cablevey. Photos courtesy Cablevey Conveyors
August 17, 2021

When National Frozen Foods Corp., a national processor of frozen vegetables since 1912 that processes more than 400 million lbs. of product annually, was looking to meet higher compliance standards while increasing the speed of packaging, they found a solution in a tubular conveyor system capable of providing an extremely reliable conveyance, automated cleaning of the system without having to take it apart, according to Mark Koreis, superintendent processing/packaging, at the Moses Lake, Wash., plant.

The plant previously conveyed frozen peas, corn, lima beans, diced carrots and legumes using a pneumatic conveyor to move product to bulk packaging areas, Koreis says. But this was less than ideal for their application. “Our previous pneumatic conveyor system generated a lot of heat, which is not good for frozen product, so we had to inject cool air into the system,” he says. “Also, sanitation of the system presented challenges.”

According to Koreis, the cleaning process was inefficient and led to some downtime. As a result, the system was typically limited to conveying no more than 8 to 10 tons of product per hour. “We sought a more reliable, precise, streamlined cleaning process, as well as increased production speeds,” says Koreis.

“We sought a more reliable, precise, streamlined cleaning process, as well as increased production speeds” — Mark Koreis, superintendent, packaging/processing, National Frozen Foods Corp.

To resolve the issue, the plant replaced the pneumatic conveyor system with a tubular cable conveyor system with automated wet cleaning capability from Cablevey Conveyors. In the food industry, the conveyors are utilized for products such as nuts, cereal, snacks, beans, seeds and coffee. The system can convey up to 2,000 cubic feet per hour of materials with numerous layouts using multiple inlets and outlets.

The cable conveyor’s wet cleaning process internally cleans the tube in several steps starting with a water rinse followed by foaming agent, a sanitizing rinse and a final water rinse. Once the system is thoroughly flushed out, drying is achieved by attaching urethane wipers to the tubular conveyor’s discs, which act like a squeegee to remove any residual water.

For the Moses Lake frozen food processing plant application, a 6-inch dia. tubular conveyor system approximately 100 ft. long was installed to send product to be packaged in boxes or totes for shipping. To automate the cleaning process, Cablevey helped to integrate the conveyor with the plant’s distributed control system (DCS).

“By automating the cleaning, the Cablevey system is essentially self-cleaning,” says Koreis. “It is very convenient to let it run through the cleaning process and have employees take care of other tasks.”

According to Koreis, clear tubes were chosen as an option for the conveyor system to provide greater visibility into the cleanliness of the equipment and the cleaning process as it occurs. He also chose to add a unique inspection option that enables the running of a small, lighted camera system internally through the tubes, with video viewable on his smartphone via an app. Usually, this level of inspection is performed on an as-needed basis to further verify or document cleanliness.

“The tubular conveyor is clear except where the clamps are, so we can visually check at any time, and the internal camera system allows us to see every nook and cranny from the inside,” says Koreis. “This, along with regular ATP testing, gives us confidence that we are reliably meeting all necessary QA and food safety standards.”

“Compared to our previous air conveyor system, we are able to run significantly more—up to 15 tons an hour, with less downtime and less breakage of delicate product,” he says.

For more information, visit www.cablevey.com.

KEYWORDS: conveyors food processing

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Sharon spielman authors

Sharon Spielman is former senior editor of Food Engineering magazine. She has more than 25 years of experience as a writer and editor for a range of trade publications, including those that cover food and beverage processing, restaurants and institutions, chefs, process heating and cooling, finishing, and package converting.

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Photos courtesy Cablevey ConveyorsBecause tubular cable conveyors are enclosed, they can be quickly and effectively flooded with water, flushed, rinsed, cleansed and thoroughly sanitized without disassembly, Photos courtesy Cablevey Conveyors | Photos courtesy Cablevey Conveyors
Photos courtesy Cablevey ConveyorsCablevey Conveyors’ wet cleaning process internally cleans in several steps, starting with a water rinse followed by a foaming agent, a sanitizing rinse and final water rinse. Photos courtesy Cablevey Conveyors | Photos courtesy Cablevey Conveyors
Photos courtesy Cablevey ConveyorsCablevey Conveyors tubular conveyor is clear except for the clamps so staff can visually check anytime. A cleaning inspection option involves a small, lighted camera system, with video inside the tubes viewable on a smart phone via an app. Photos courtesy Cablevey Conveyors | Photos courtesy Cablevey Conveyors
Photos courtesy Cablevey ConveyorsThorough, wet cleaning can be accomplished without disassembly, reducing downtime and eliminating the need for unnecessary additional dedicated conveyor lines. Photos courtesy Cablevey Conveyors | Photos courtesy Cablevey Conveyors

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    • New Retail Products
  • TOPICS
    • Alternative Protein
    • Automation
    • Cannabis
    • Cleaning | Sanitation
    • Fabulous Food Plants
    • Food Safety
    • Maintenance Strategies
    • OEE
    • Packaging
    • Sustainability
    • More
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    • Plant Construction Survey
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