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PBE News
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In this issue...

Feature: Keys to selecting a bulk storage tank
Ask an Expert: Pneumatically conveying hygroscopic materials
More Questions and Answers
Read It Here First: Strategies for safer powder drying
Industry News


APRIL 4, 2012



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Acrison Eriez Triple/S National Bulk Equipment
Marion Mixers Lorenz Hammertek Progressive Industries
Jenike & Johanson

Feature

Keys to selecting a bulk storage tank
Bill Neighbors, Tank Connection

The single most important factor in choosing a bulk storage tank for your application is having a good understanding of your material's characteristics. Answering the following questions will help you determine which tank type and features are best suited to handling your material and storage requirements.photo

1. How much dry bulk material do I need to store?

2. Does my material have unique characteristics that may affect its storage or discharge?

3. What tank construction material is best suited to my material's characteristics?

Continued ...  
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Vortex Valves

Ask an Expert

Pneumatically conveying hygroscopic materials

What are some tips for handling my hygroscopic material in a pneumatic conveyor?

Eric Maynard, Jenike & Johanson, says: A hygroscopic material "readily takes up and retains moisture," according to Merriam-Webster's Collegiate Dictionary. Common hygroscopic bulk solids include sugar, salts, phosphates, and acids. Often the finer the powder, the greater its hygroscopicity because of its higher surface-area-to-volume ratio.

The effects of moisture uptake can include mold, rot, or fermentation with food powders; caking or self-heating with chemicals; and stickiness, buildup, and cohesion. In many cases, moisture influx to a pneumatic conveying system handling a hygroscopic powder results in reduced solids conveying capacity due to gradual buildup, and in severe situations, complete line plugging.

CONTINUED...

Eric Maynard is senior consultant and director of education at Jenike & Johanson.

Think you've got what it takes to be the Expert?
We're looking for guest contributors for the Ask the Expert section—email toneill@cscpub.com for more info.

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Flexicon

More Questions and Answers

Q: How do I choose the best bulk bag filler for my needs?

read the answer

Send Us Your Questions!

To send us your questions email toneill@cscpub.com
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ACS

Read It Here First:

Strategies for safer powder drying
Rick Kwasny, Fauske and Associates

photoIf drying a powder is part of your manufacturing process, you should know that this operation can be hazardous. One study of major chemical manufacturers indicates that powder drying operations may have contributed to 37 percent of all plant accidents in a 16-year period. These accidents – including fires, explosions, or both – can be devastating, potentially resulting in worker injuries or even deaths. A dryer shutdown after such an event can cause serious production losses, as well.

To prevent a dryer fire or explosion and protect your workers and equipment from the consequences of such an event, it's critical to identify fire and explosion hazards in your powder drying operation during process development, before you select full-scale drying equipment. This includes testing your wet feed powder for potential fire and explosion risks and performing a process hazard analysis to identify such risks in your process.

Once your drying operation is running, you should periodically review the process hazard analysis and update your testing results to current standards, as needed. This strategy will allow you to quantify your drying operation's risks for an adverse event, such as powder decomposition, fire, explosion, and dryer malfunction. But most important, the strategy will allow you to design and implement adequate safeguards to protect your workers, equipment, and plant in case of such an event. This article outlines an approach for designing a safer drying operation based on understanding the probability and magnitude of a fire or explosion so you can choose the right safeguards for your process.

To learn about how to design a safer drying process, you can read "Strategies for safer powder drying" by Rick Kwasny, Fauske and Associates, in the April issue of Powder and Bulk Engineering.

To read it today, click here.
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KWS

Industry News

Global demand for abrasives to approach $45 billion in 2015

Global demand for abrasives is projected to grow 6.3 percent annually to $44.8 billion in 2015. Advances will be driven by ongoing industrialization in developing areas, rising per capita incomes and consumer spending, growing durables manufacturing output, and greater fixed investment activity, especially in the Asia-Pacific region. This is according to "World Abrasives", a study from the Freedonia Group, a Cleveland-based industrial marketing research firm.

PBE hosts successful Powder Show

Attendees at Powder and Bulk Engineering's Southeast Conference and Exhibition, held at the Galleria Centre in Atlanta last month, found answers to many of their powder processing and handling problems. Seventeen conference sessions and four panel discussions provided answers to basic and advanced questions about pneumatic conveying, dust explosibility, material flow, and other topics. Equipment and services of nearly 100 companies were represented on the exhibit floor. PBE's next regional trade show will take place in May 2013 in Columbus, Ohio. Watch our website for information.

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Cablevey Conveyors

Supplier News

FLSmidth to purchase Ludowici

FLSmidth, Valby, Denmark, has signed an agreement to purchase Ludowici, Brisbane, Australia. Ludowici manufactures and sells equipment related to the mining and metals industries, including vibrating screens, coal centrifuges, and other products. FLSmidth is a global engineering company supplying the cement and minerals industries with processing and handling equipment, systems, and plants.

GEA Process Engineering to handle sales, service for GEA Nu-Con products in N. America

The GEA Group, Düsseldorf, Germany, recently acquired Nu-Con Ltd., Auckland, New Zealand, a global supplier of bulk handling equipment and systems, including bulk filling lines. GEA Process Engineering, with locations in Hudson, Wis., and Columbia, Md., will handle all North American sales and service of GEA Nu-Con products.

Vortex Valves names new sales manager

Vortex Valves, Salina, Kans., has named Shawn Opat as regional sales manager for the Upper Midwest and Northeastern region. The company produces slide-gate, diverter, and iris valves for handling dry bulk materials in gravity, vacuum, and dilute- and dense-phase pneumatic conveying systems.

Editor's note: Send your news items to toneill@cscpub.com.

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Tecweigh

Events

SME to host conference on 3-D imaging

The Society of Manufacturing Engineers (SME) will host RAPID 2012 Conference & Exposition on May 22-25 at the Hyatt Regency in Atlanta. The keynote address will cover 3-D imaging (also called additive manufacturing because it's accomplished by printing multiple layers of powder), which has experienced remarkable growth in the last several years among manufacturers, researchers, hobbyists, inventors, and others. Visit the conference info page for more information.


SAMPE returns to Baltimore for major 2012 show

The Society for the Advancement of Material and Process Engineering (SAMPE) will hold SAMPE 2012 on May 21-24 at the Baltimore Convention Center in Baltimore. The show is said to be the largest conference and exhibition focusing on advanced materials. To learn more, visit the conference info page.

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Donaldson

Continuing Education

Pneumatic conveying webinar

PBE will host the webinar "The Basics of Pneumatic Conveying" at noon EDT on Tuesday, May 1. Paul E. Solt and Jack D. Hilbert will discuss pneumatic conveying system types and major components, provide guidelines for selecting a system for your application, and answer your questions. Click here for more info and to register.

Combustible dust hazards and dust explosions course

The American Society of Mechanical Engineers (ASME) and the American Institute of Chemical Engineers (AIChE) will present this course on May 3-4 at Harrah's Las Vegas in Las Vegas. The course will cover the fundamentals of OSHA's Combustible Dust National Emphasis Program, including how to examine your workplace for hazards, assess protection needs, and respond efficiently to changes in the regulatory climate. Click here for more info.

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Copyright 2012, CSC Publishing Inc. All rights reserved.
PBE-News provides information updates about the dry bulk materials processing and handling industry twice a month. The opt-out link below will allow you to opt out of future PBE-News. This will in no way affect our contact methods regarding your subscription or communication. Thank you.

 

PBE-News Editor
Austin Wiebe
awiebe@cscpub.com

 

PBE-News Designer
Kelly Weyandt
kweyandt@cscpub.com