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This article describes the sieving, classifying, and other types of testing that Elcan offers in its test center. A customer who needed titanium powder for 3D printing analyzed sent the company a sample. Test center staff used a variety of equipment to determine particle shape, size, and distribution, which allowed the customer to properly layer the titanium powder in its 3D printer for the best result.
When a green technology company needed a screener to aid in reclaiming materials from end-of-life tires, the operation sought help from Midwestern Industries, Massillon, OH. Trying to consistently — and profitably — separate the ground rubber aggregates from the fine carbon black powder was a problem. After 3 weeks of testing on full-size equipment, an MEV high-frequency screener with five decks that each screen up to five different particle sizes was selected.
Mesh blinding is one of the most common problems in any screening operation. This article discusses how blinding occurs and discusses pros and cons of devices that can help avoid the problem.
When Cirque du Soleil, the performance group known for its innovative staging, needed to re-create a beach scene on a cliff, 250 cubic feet of granulated cork was used to simulate the sand. During each performance, the cliff tilts and the sand and performers fall into an off-stage net. When the group needed to figure out how to accomplish this repeatedly for daily performances, it contacted Flexicon. The supplier put together a combination of hoppers, conveyors, and classifiers that allow the show to go on.
This article explains the basics of dry powder classification and describes some of the most common classification methods available for bulk solids manufacturing applications.
Jewel Date Company harvests and processes 2 million pounds of dates and date products annually. The company had been using a hammermill for size reduction, but the method lacked precision and took 8 hours to process 2,000 pounds of dates. The company consulted Munson Machinery, which recommended installing a screen classifying cutter. Jewel now can produce a wider range of particle size options and produce them with less frictional heat, avoiding granule melting and clumping.
As vibratory separators age and start experiencing the wear and tear of a typical bulk solids processing operation, the machines can develop operating issues. Much of the time, these issues can be easily fixed with simple adjustments or changes to components. This article highlights some of these issues and changes
Regular inspections are critical in maintaining centrifugal screeners and can help ensure a positive outcome when handling bulk solid ingredients. This article details how to make inspections work for you and offers additional tips to ensure that the inspections happen on a regular basis.
A gravity separator separates dry, granular, free-flowing material according to particle density. The unit is typically used to improve product quality in seed and grain, mineral, and recycling applications. This article fist describes how a gravity separator works, then explains how to determine if your material is suitable for gravity separation. The final sections describe how to select a gravity separator and how to calculate the equipment's return on investment.
A new $60 million chemical manufacturing plant was having problems. The plant was built to manufacture a spherical bulk solid product, but the manufacturing process also generated particulate fines that were forming agglomerates. Enter Elcan Industries.
Owensboro Riverport Authority, one of the largest sodium bicarbonate (SBC) processing plants in the world, needed a system to help mill and classify material for customers.
Screening problems can have a disastrous effect on a production line. This article reviews tips that can help keep your screener operating at its best.
Screeners used in dry bulk processes must meet three, often competing, requirements: separation accuracy, high-capacity throughput, and efficient operation. When handling a fragile material, the screener also must be gentle, and for many applications, a long-stroke screener is your best choice.
This article focuses on screen deck maintenance for one sifter type — the gyratory sifter. The author starts by describing the sifter's operation and how to properly install the sifter, then outlines the monthly and yearly maintenance steps that will keep your gyratory sifter's screen decks in peak condition.
An air classifier separates fine iron oxide particles from coarse to produce richer red pigments.
Dusty, noisy six-screen gravity-fed sifter prompts producer to update equipment.
Screening -- the mechanical separation of solid particles on the basis of size -- is an essential part of many different processes, including the production of sand, gravel, crushed stone, minerals, ceramics, chemicals, coals, sugar, flour, and feed and grains.
After a brief introduction to the vibratory sieve, this article suggests six ways to optimize your sieve’s capacity and accuracy.
When Kraft couldn't find the fines removal machine they wanted, they had one built.
Do you know how air classifiers operate and how to select one for your application? Read this article for information on how air classification works, how feed affects air classifier performance, and how to evaluate classification efficiency, throughput, and energy requirements. Final sections discuss typical air classifiers and applications and how to select one. Related information provides some technical background.
To improve product quality, a food processor installs a rotary sifter in a pneumatic conveying line for cocoa powders.
Toner particles are smaller than 20 microns.
Lumps in a fungicide required recycling that increased labor costs, so a chemical company installed a separator to deagglomerate most lumps and remove the rest.
A producer of dry powder blends installs a low-profile round screener to enhance finished-product quality.