Application Notes & Case Studies

Screen Classifying Cutter Plays Key Role in Leading-Edge Alternative Energy Projects

Application Notes & Case Studies /

The PDC leased the Screen Classifying Cutter for two years ago before purchasing it. The unit proved effective at cutting hard, soft, and fibrous materials into controlled particle sizes with minimal fines at high rates for post-usage. It features a proprietary helical rotor design with dozens of cutter tips attached to a helical array of staggered holders called “interconnected parallelograms” to continuously shear oversize materials against twin, stationary bed knives.

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Vibratory Screener Helps Raise Littleneck Clams

Application Notes & Case Studies /

The circular vibratory screener consists of two screening decks, one above the other, with an imbalanced-weight gyratory motor that causes them to vibrate. “When the time comes to remove the larger clams from a raceway, we scoop several handfuls of them into the top deck of the screener, which has a slightly larger mesh than the lower one,” Mayer explains. “For example, we might have a 3/8 in. (9500 micron) screen on top and a 1/4 in. (6300 micron) screen on the bottom. As the clams move toward the periphery, the smaller clams fall through onto the bottom screening deck. Those small enough to pass through the tighter mesh of the lower screen are ejected through a discharge spout into a collection pan. Those too large to pass through the smaller mesh are ejected through another discharge port into a separate collection pan. The largest clams, those that failed to pass through the larger mesh of the upper screen, remain on that screen.”

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Aquaculture Center Switches to Vibratory Screening of Oysters

Application Notes & Case Studies /

The search for a better way led to replacing manual screening with a dramatically more productive, mechanical 30 in. (762 mm) diameter VIBROSCREEN circular vibratory screener manufactured by Kason Corporation of Millburn, NJ. With one operator now completing each day’s sorting in less than two hours, the equipment paid for itself in the first season.

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Screw Conveyor with Reversing Flighting Keeps Beef Plant Running

Application Notes & Case Studies /

KWS replaced the shaftless spiral and torque tube with heavy duty shaftless flighting, a stronger torque tube, and full penetration continuous welds on both sides of the flighting. A section of bare pipe was intentionally left for product to discharge. The key to solving the plugging issue was the addition of left-handed reversing flighting. Raw material flowing past the bare pipe section was now introduced to the left-handed flight which was mechanically sharpened by KWS to slice the raw material off, allowing it to fall through the discharge 100-percent of the time. Knowledge and experience provided by KWS is second to none, creating a very cost-effective solution resulting in 100-percent customer satisfaction.

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Automated Tray Filling System for Poor Flowing Powder

Application Notes & Case Studies /

An operator places a rolling tote with 20.5 cubic feet of material that weighs approximately 2500 lbs. of lime and ferroalloy materials for discharge into a Argon Oxygen Decarburization (AOD) vessel in a Alloy Manufacturing production facility. Production design calls for 6 discharges per hour performance, rotating 150 degrees with a chute extension designed to raise up to meet the fixed carriage chute to direct material flow into the AOD. Once the process is complete the discharger lowers both the carriage and the chute extension after the AOD vessel has moved out from the loading position by the operator, all while operating in a continuous 120-degree F. environment.
The unique operating environment also requires special heat shielding and specialized hydraulic operating designs to live where the section of the machine is susceptible to highly aggressive flames due to chemical reactions of material entering the vessel upon discharge. The two-part chute (fixed and pivoting) was a challenge to the previous design due to the maximum swing arc for ceiling restrictions and AOD vessel load positioning. This evolutionary design helped solve the dimensional constraints.

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Automated Tray Filling System for Poor Flowing Powder

Application Notes & Case Studies /

For this application, a repeat NBE customer was looking for help in adding some automation to a very manual process. The customer is making brake shoes. The customer would manually fill trays with 26 lbs of the brake pad material that would then be placed on carts and transferred to a press line where the shoes would be molded. For this new process, NBE proposed a semi-automated process where the raw material, received in the customer’s rolling tote, is discharged into the process using a high lift sealed container discharger. The material is discharged into a loss in weight feeder system that is designed to accurately provide the desired batch amount. The customer will manually stage 10 empty trays, 5 per side, into the infeed conveying system. The empty trays are indexed into the filling zone where the ingredient is metered in. The filling system incorporates a sweeper inside the tray that moves from side to side while filling to provide a uniform fill level in the tray. A pneumatic pusher mechanism then pushes the filled tray onto an accumulation conveyor system where the operator can then remove them and prepare them to go to the press.

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Container and Bulk Bag Filler for Glass-Filled Polypropylene Pellets

Application Notes & Case Studies /

The system will allow the customer to fill both bags and containers with glass filled poly pellets. We feature a large surge bin with 80 cubic feet of capacity, filling station with connections for both bags and container, three operator platforms and integrated controls to work with both NBE and customer provided equipment.

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Magnetic Separation for Mining and Aggregate Production

Application Notes & Case Studies /

In aggregate and mining applications the need to remove ferrous often comes down to protecting processing equipment like conveyors, screens and crushers. Tramp metal, like bucket teeth, that get best solution for removing damaging tramp metal in mining and aggregate production. However, when it comes to which type of magnet, that depends on the specifics of your application. How prevalent is tramp iron in your product? What type Overhead Magnetic Separators through can cause catastrophic damage and costly downtime while you’re forced to make repairs. The other benefit that magnetic separation provides is enhanced product purity

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Metal Seperation at a Sugar Cane Refinery

Application Notes & Case Studies /

Due to high humidity and the adhesive nature of sugar, the customer’s existing magnets were
incapable of providing ferrous metal capture or processing equipment protection. Magnetic tubes, which were supposed to capture contaminants, were instead coated in sugar and, as a result, when cleaning occurred by actuating tubes through stripper seals, the seals were cracking and falling into the “pure” product stream. Additional contaminants were simply “washed off” the tubes because of the weakness created by the sugarcoating and air gap.
IMI demonstrated the mechanical advantages of IMI’s unit side-by-side versus their current housing;
the IMI unit pull-tested stronger- with nearly 40% more holding power.

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