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United States Systems

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Pneumatic Conveying Company U.S. Systems Moves Dry Bulk Material for Large Fortune 500 Corporation.


One of the largest paper manufacturing companies in the world selected United States Systems to design and manufacture the complete salt cake conveying, storage, and mixing system.

Kansas City, KS, November 05, 2009 --(PR.com)-- In 2005, paper manufacturers became eligible for the Alternative Fuel Tax credit for their re-use of bio-mass to fuel their plants. One of the world’s largest producers of folding cartons and coated boxboard packaging has earned a reputation for their emphasis in sustainability.

Their commitment to sustainability and an opportunity to earn a significant tax credit led them to further rely on energy output provided by the bio-mass by-product in their plants Black Liquor is a by-product of the manufacturing process which is used to fuel the on-site power plant that creates as much as 66% of the electric energy used by the mill. To prepare the black liquor for the power plant, salt-cake needed to be hauled in by rail, transferred to a storage silo, and metered into a wet mix tank.

The company selected United States Systems to design and manufacture the complete salt cake conveying, storage, and mixing system. Project objectives necessitated an efficient system with the ability to unload an entire railcar in less than one operator shift. US Systems met the design challenges by engineering a continuous flow airlock system to meet project specifications.

A concern expressed by the salt cake supplier was that moisture from the 200° F liquid in the mix tank would rise through the rotary valve and make it’s way into the silo cone. Moist salt cake will not flow properly. USS engineered the system to minimize the migration of moisture into the spout by utilizing a slide gate to isolate and seal the moisture from the airlock. However, when the gate is open and the salt cake is being added to the wet tank, moisture might still migrate upward.

To solve that potential problem, engineers at US Systems devised a way to purge the zone below the airlock with compressed air while the gate is open. The compressed air causes a net downflow of air and minimizes the moisture migration upward into the spout.

The uniquely engineered solution proved successful and they are now unloading up to 6,000 lbs/hr of salt cake to the wet mix tank. US Systems technicians provided the startup assistance to get the salt cake moving quickly and trained personnel in operation and safety.

For more information about Pneumatic Conveying, Blower Packages, FIBC Bulk Baggers, Pallet Dispensers, Pallet Conveyors, and portable solutions, please visit www.UnitedStatesSystems.com

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Contact Information
United States Systems
Greg Hawkins
1-888-281-2454
Contact
www.unitedstatessystems.com

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