Manufacturing News

Dryer Controls Multiple Products to 0.5% Moisture

March 27, 2003
/ Print / Reprints /
ShareMore
/ Text Size+
When Cascade Fruit Company wanted to expand product capability and total capacity, it had one problem -- not enough space in its 23,000 sq.-ft. facility to place additional equipment. The company processes and dries a wide range of infused fruit products and vegetables. Various product sizes, moisture levels and drying parameters made The Dalles, OR, processor's dehydrating requirements difficult to meet.

"Flexibility was a major consideration when we needed to upgrade our drying process," says Ron Wherry, special projects manager at Cascade Fruit. "We had been using a tray and rack system located on a trailer adjacent to the plant."

After looking at several suppliers, Cascade decided to work with Wenger Manufacturing who customized its Series VII, two-pass dryer for the process.

Wenger incorporated sanitation features such as all stainless steel construction, minimal internal ledges, fans and heaters located outside of airflow plenums and full perimeter doors for easy access.

Cascade's main product is infused blueberries for overseas markets. "However, other targeted products include infused bananas, cherries, strawberries, cranberries and pineapple as well as a variety of dried vegetables," notes Wherry. "Each requires different drying parameters such as time, temperature and air flow."

Wenger not only customized the dryer but also helped Cascade develop drying curves for its products. Integral to product flexibility is the dryer's airflow patterns. "Other dryers we looked at were preset for one specific product and very difficult to change," Wherry said.

Balanced, heated airflow from either side of the dryer minimizes uneven drying. Adjustable plenums can also direct airflow top-to-bottom or bottom-to-top. Temperature and belt speeds are PLC monitored and controlled. Since the system is modular, each zone can be adjusted independently for precise product optimization.

Products enter the dryer via an oscillating belt feeder after being cleaned, infused, inspected and sprayed with oil and flavor. Product initially proceeds through the dryer on an upper belt then cascades to a lower belt, redistributing and reversing product direction.

"Quality improvements have been exceptional," adds Wherry. "Integrity of the finished blueberries is noticeably enhanced. There is also less clumping and improved drying consistency."

Wenger Manufacturing, Northpointe Circle I, Ste. 510, 7505 N.W. Tiffany Springs Pkwy, Kansas City, MO 64153 Tel.: (816) 891-9272 Circle 203

Did you enjoy this article? Click here to subscribe to Food Engineering Magazine.

You must login or register in order to post a comment.

Multimedia

Videos

Image Galleries

Fabulous Food Plant: Paramount Citrus

Learn more about this fabulous food plant in Food Engineering's article, found here.

Podcasts

Burns & McDonnell project manager RJ Hope and senior project engineer Justin Hamilton discuss the distinctions between Food Safety and Food Defense as well as the implications for food manufacturers of the Food Safety Modernization Act.
More Podcasts

THE MAGAZINE

Food Engineering Magazine

Food engineering magazine 2014 april cover

2014 April

Catch a preview of the Powder and Bulk Show in this April 2014 edition of Food Engineering. Also, be sure to check out a coffee stick making a real stir and a major advancement in the the pet food industry.
Table Of Contents Subscribe

THE FOOD ENGINEERING STORE

Food-Authentication-Flyer-(.gif
Food Authentication Using Bioorganic Molecules

This text provides critical tools and data needed to augment routine food analysis and enhance food safety by aiding in the detection of counterfeit, and potentially deleterious, foods.

More Products

Clear Seas Research

Clear Seas ResearchWith access to over one million professionals and more than 60 industry-specific publications,Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.

Food Master

Food Master Cover 2014Food Master 2014 is now available!

 

Where the buying process begins in the food and beverage manufacturing market. 

Visit www.foodmaster.com to learn more.

STAY CONNECTED

FE recent tweets

facebook_40.pngtwitter_40px.pngyoutube_40px.pnglinkedin_40px.png