System Integration

Accurately Weigh Grams Per Hour to Tons per Minute

With a broad product line that addresses everything from main silo discharge to micro-ingredient feeding, Vibra Screw offers a continuous or batching weighing solution for every dry bulk feeding problem.Accurate weighing of dry bulk solids requires reliable and consistent flow of material from storage into the feed mechanism itself. Vibra Screw’s unique use of controlled vibration promotes flow, uniformly densifies the material, and completely fills and empties each flight of the feed screw. As a result, all Vibra Screw weigh feeding systems start as highly accurate volumetric feeders, eliminating inaccuracy during the refill cycle.Vibra Screw offers weigh feeders in screw sizes from 1/4″ to 18″ along with a broad range of belt, pan and tube feeder based systems.

The Vibra Blender from Vibra Screw utilizes a unique combination of a rotating paddle and material fluidization to blend dry solids with the ease of liquids. Gentle controlled vibration of the mixing trough, fluidizes ingredients on entry where a cut and fold mixing rotor provides agitation. Materials flow through the Vibra Blender by gravity making it completely self regulating to changes of infeed rate.The Vibra Blender’s simple rugged design offers dust tight operation, easy clean out, and years of maintenance free operation. Vibra Blenders are available in capacities up to 1500 ft³/hr.

TOTOWA, NJ — One of the things that sets us apart from our competitors is the ability to supply a complete system for accurate, high rate loss in weight feeding of the most difficult materials. Cement and kiln dust have a tendency to pack solidly or aerate, and flush right through the system. This is a problem we’ve seen and solved thousands of times, so when LaFarge Cement in South Carolina came to us with their application, we had a proven solution. The materials are stored in (2) 20′ diameter and (1) 11′ diameter silos and these serve as the primary supply bins for the feeding system. It is critical that material flow on demand and in a controlled condition from the bins to the feeders, so we recommended (2) 10′ Bin Activators and (1) 7′ Bin Activator. Immediately below the Bin Activators are the Loss in Weight systems themselves. Whereas the typical LIW system might have a 5 ft³ hopper, these systems required 50 ft³ Live Bottom Bins and 6″ HD-2 type Heavy Duty Feeders. The Live Bottom Bin/Heavy Duty Feeder combination guarantees controlled flow through the system and just on a volumetric basis would provide feed accuracies of +/- 1-2%. But, by mounting the whole assembly on load cells and applying our model 2160 LIW control system, we will achieve accuracies of +/- ½% and give the customer important inventory and system integration capabilities. This application is simply out of reach of most of the familiar names in the Loss in Weight feeding business, but the kind of thing we can offer with results.

TOTOWA, NJ — Vibra Screw, Inc., a leader in solids processing and solids handling solutions, has been awarded a mid-six-figure contract with the People’s Republic of China to supply Bin Activators and Heavy Duty Feeders for a coal conversion plant in Inner Mongolia, it was announced by Gene Wahl, Vibra Screw President.The owner of the plant is Shenhua Coal, Co., Beijing; it was designed by Axens International, Princeton, NJ, and plant procurement was handled by Sinopec Engineering, Beijing. The actual purchase of the Vibra Screw equipment was handled by Govoni Sim Bianca Impianti, SpA, Italy, who are supplying most of the equipment for the plant.The coal plant is the first of a planned total of five facilities that will help to meet the rapidly increasing demand for energy concurrent with the 14% growth rate in the Chinese economy.According to Mr. Wahl, the equipment will be used to take coal out of silos and transport it so that it can be mixed with a catalyst in order to produce a more thermally efficient material that will be used to generate electricity.“The process involves pre-wetting pulverized coal with a catalyst before it is mixed with more liquid catalyst in large mix tanks,” he explained. “The coal, which has a high bulk density, bridges in storage and will not flow unaided. Once flow has been accomplished, the coal must then be accurately metered and weighed against the end products to ensure efficiency of the process. Since pulverized coal is very difficult to meter, the accuracy of the feed system is critical to the entire operation, which will run at literally thousands of tons a day.”Controlled vibration in the Vibra Screw Bin Activators will keep the coal moving without interruption from the storage silos into Vibra Screw Heavy Duty Feeders which will deliver the coal accurately into impact weighers. Accuracy of the Heavv Duty Feeders will also be achieved by controlled vibration, which densifies material, assures uniform filling

Vibra Screw Pre-Packaged Feed and Mix Systems Offer High Efficiency and Accuracy

TOTOWA, NJ — Vibra Screw, Inc., a leader in solids processing and solids handling solutions, offers a number of pre-packaged chemical feed and mix systems for treatment applications. Materials such as activated carbon, diatomaceous earth, lime, soda ash and others can be easily and effectively handled with high efficiency and accuracy. Vibra Screw proven hoppering, bag dump and feeding components form the basis of these systems that include make-up tanks, wetting cones, blowers and eductors. Vibra Screw provides all mechanical and electrical design for the systems, along with integration of all components into turn key, skid mounted assemblies. Vibra Screw’s 50 years of experience gives it unique insights into solids handling, with the confidence to back every system it sells with an unconditional money back performance guarantee. With a staff of experienced and talented engineers, technicians and crafts people, Vibra Screw manufactures high quality equipment to store, discharge, meter, convey, size and blend solid materials. The company’s comprehensive product range includes bulk bag unloaders and fillers, volumetric feeders, bin activators, vibrating feeder/conveyors, loss-in-weight feeders, storage pile activators, live bottom bins, live bins, continuous blenders, screeners, controls, and turnkey systems.

Vibra Screw Case History Details Significant Savings in Volumetric Approach to Processing Mineral Blends

TOTOWA, NJ — Vibra Screw, Inc., a leader in solids processing and solids handling solutions, has announced the availability of a new case history that describes how a major Eastern toll processor was able to simplify its new plant design and considerably save on costs by choosing a simpler volumetric approach to bulk materials handling rather than a more complicated gravimetric loss-in-weight solution.In this particular installation, the processor incorporated bulk bag unloaders, bin activators, screw and belt feeders, blenders, tube conveyors, bucket elevators, bag fillers, storage silos and live bottom bins into a highly efficient system for feeding and metering mineral blends into two identical packaging lines. Customized PLC controls were also provided by Vibra Screw to synchronize the diverse filling, blending, and discharge functions required to meet application requirements.All of the Vibra Screw equipment was unconditionally guaranteed to perform in the service for which it was sold. With a staff of experienced and talented engineers, technicians and crafts people, Vibra Screw manufactures high quality equipment to store, discharge, meter, convey, size and blend solid materials. The company’s comprehensive product range includes bulk bag unloaders and fillers, volumetric feeders, bin activators, vibrating feeder/conveyors, loss-in-weight feeders, storage pile activators, live bottom bins, live bins, continuous blenders, screeners, controls, and turnkey systems.

Vibra Screw, Inc., a leading manufacturer of equipment and systems for precision processing of dry bulk materials, is offering a new Case History No. C-269 describing how a major snack food manufacturer uses Loss-in-Weight Feeders to control line dispersion in production of corn-based products.The manufacturer had been adding a small but precise amount of lime to the kettle feed stream by hand to soften and remove skins from corn kernels prior to processing and cooking. Since lime tends to settle and not stay suspended, the manual operation resulted in lumping and balling in the kettle along with wide accuracy fluctuations in a process that requires extremely critical ratios of lime to corn.Vibra Screw’s feed system incorporates a loss-in-weight screw feeder with a vibrated hopper, horizontal flexible screw auger and PLC controls for loss-in-weight operation. The system intermittently feeds 50 lbs. of lime to approximately 300 lbs. of corn per batch usually twice per hour for approximately four minutes per batch – a small but evenly distributed amount of lime. With each corn kernel evenly coated in the feed stream, lumping and lime settling have been completely eliminated.Vibra Screw introduced the concept of controlled vibration to condition and drive bulk materials into and through a process more than 40 years ago. Today they manufacture the broadest line of equipment incorporating this feature including bin activators, bulk bag unloaders, volumetric screw and belt feeders, and all types of graimetric feeds, blenders, and controls.

Packaged System Simplifies Sorbent Feed in Continuous Water Treatment Systems

Vibra Screw, Inc., a leading manufacturer of equipment and systems for precision processing of dry bulk materials, has introduced a completely packaged system that simplifies the wetting and metering of activated carbon in water treatment systems. Vibra Screw’s continuous duty system includes a bulk bag unloader, volumetric screw feeder, educter and cone wetting unit for use when a sorbent is required to absorb pollutants. The lack of mixers, pumps, and tanks used in the system virtually eliminates maintenance and makes delivery and handling of activated carbon or other sorbents easy. The activated carbon system accepts bulk bags as large as 4,000 lbs., feeds hard-to-handle powders with accuracy as high as + 0.5 / 2% and replaces batch methods currently used to treat water. Vibra Screw also provides all liquid metering components, low water alarms, shut-offs, material level indicators, cycle timers, programmable electronic controls for monitoring and inventory control and wiring, required to operate the volumetric screw feeder as part of the package. Capacities range as low as 1 lb./hr. and only water hook-up and 110 V AC power are required to operate the system. Vibra Screw introduced the concept of controlled vibration to condition and drive bulk materials into and through a process more than 40 years ago. Today they manufacture the broadest line of equipment incorporating this feature including bin activators, bulk bag unloaders, volumetric screw and belt feeders, and all types of graimetric feeds, blenders, and controls.

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