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From the Editor

Our goal is to provide information to improve your business by using the resources available on the Internet.

Thanks, 
Joe Taylor
jtaylor@powderandbulk.com

Boost Your Sales
Add "live" customer service to your company's web site and "chat live" with those visiting your site.  We have just released German, Spanish, Italian, Swedish and Dutch versions.  Only $199 and no monthly fees!

Send Us Your News !

Do you have company news, a new product, new service or other information you would like to share with our subscribers.? We give full credit to contributing authors.

Deadline for the next issue is November 18th.

Please try to submit articles via e-mail. If you have photographs to be included with article send it as an attachment and please, no 3 Meg files!  Also, we do want "action-shots" for our home page!  Send it to:  news@powderandbulk.com
...or visit our news and information submission page at:
Click here to submit a press release

Not "Black and White"

Fort Mill, SC - November 12, 2001 - Carbon black and titanium dioxide (TiO2) are two of the most difficult powders to handle in bins, hoppers, and feeders. You may conclude that, as the title of this article indicates, designing a handling system for these "nasty" materials is not black and white. If you are not familiar with TiO2, it is a fine white powder that provides whiteness and opacity to paints, coatings, plastics, paper, inks, fibers and food and cosmetics. The reason that it used so widely as a whitener is its high refractive index and small particle size. The refractive index is a measure of a material's ability to bend light. TiO2 is simply an excellent reflector. Most TiO2 is nearly 100% minus 325 mesh and has a bulk density of about 50 lb/cu.ft. There are various grades of TiO2 supplied by the major manufacturers and curiously enough, the better the grade, the more difficult it is to handle.

Carbon black on the other hand is an engineered compound and is an essential ingredient in the production of tires and other rubber goods. It also is used as a pigment in printing inks, paints and plastics. Carbon black is produced by pumping oil through a furnace, where it is heated above 2,000° F. This process produces a carbon black fume. The fume is filtered and then treated with water to create pellets. Unfortunately, these pellets are usually friable and when broken down, create fines which are difficult flowing.

Both materials mentioned above are pigments and are difficult flowing (as are many other pigments). They require constant maintenance to ensure reliable flow. When you handle these materials, you may experience severe build up on bin or hopper wall surfaces. The reason these materials are such good pigments is that they cling, smear, etc. to many surfaces. However, when this happens in a bin, you can experience bridging, ratholing, flooding, segregation, etc. These are typical problems of materials that flow in funnel flow. In funnel flow, some material moves while the rest remains stationary.

Solutions

As I have discussed in several Ask Joe! articles, 2B finish stainless steel sheet is an excellent surface for solids to slide on; however, if the TiO2 or carbon black fines adhere to that wall surface, your product is no longer sliding on the smooth stainless surface. The coated (and therefore rougher) surface would typically require extremely steep hopper slopes to ensure a mass flow pattern. Mass flow is the preferred flow pattern because all the material moves whenever any is discharged (no ratholes or floods and segregation is minimized). This photo shows typical buildup problems experienced with TiO2 at the discharge end of the screw feeder. The storage vessel experiences similar buildup problems.

Conical opening size requirements of 4' are not unusual for these materials. Hopper wall angles for mass flow are often required to be 80° to 82° from horizontal to ensure flow along the walls. These fine, sticky materials can also buildup on the sliding surfaces over time, eventually stopping flow. Handling these products reliably requires (as always), knowledge of their flow properties and proper design approaches. Wedge type configurations should be considered because wedge hoppers are more forgiving than cones (i.e. smaller openings required to prevent bridging and shallower hopper angles to ensure mass flow).

When dealing with these type materials, remember to:

• Know your material flow properties
• Design your bin and feeder properly, perhaps using a wedge approach
• Maintain your equipment to prevent the wall surface from building up with product.

Joe Marinelli of Solids Handling Technologies is our resident materials handling guru. Formerly with Jenike & Johanson, Solids Flow and Peabody TecTank, Joe is an expert on materials handling.  For past articles, Ask Joe! Archived Articles.

For more information contact:
Solids Handling Technologies
1631 Caille Ct.
Fort Mill, South Carolina 29708
Telephone:  803-802-5527
Fax:  803-802-0193
E-mail:  joe@solidssandlingtech.com
Web site:  http://www.solidshandlingtech.com/

Call for Papers

We are pleased to announce preliminary information relating to our 2002 event following our successful BULK2001 - Technical Awareness Seminar held on the 5/6 April 2001 at the Manchester Airport Moat House.

We are confident that BULK2002 will continue to be the event to attend for both suppliers and end users as materials handling engineering enters a new era.

The Seminar will address issues arising from UK environmental policy and its effect on the power generation and quarrying industries. Plant & equipment design will be featured with focus on problems in service which can increase risk.

Please respond to the BULK2002 secretariat by the 31st December 2001 with the request to present a paper. Chosen papers will then be included in the formal program, and a synopsis will be required by January 28th 2002.

BULK2002 Secretariat:
Dr H Wright & Associates
19 Marrick Road
Stockton-on-Tees
Cleveland, TS18 5LW
Tel:- +44 01642 581677
Fax:- +44 01642 570177
E-mail:- thedoctor@drhwright.com
Web site:  http://www.mhea.org.uk/

The Reading Room

"A must for everyone involved in the grain and cereals industry, this book thoroughly explains every aspect of milling and cereal processing." Primary Cereal Processing: A Comprehensive Source Book by Bernard Godon, Claude Willm (Editor) Hardcover, April 1994

"This A-to-Z guide covers technologies used to package consumer and industrial products across all industries—from food to automobiles, soft drinks to pharmaceuticals." The Wiley Encyclopedia of Packaging Technology by Aaron L. Brody (Editor), Kenneth S. Marsh (Editor) Paperback, 2nd edition, January 1997

"...explores the relevant physics of the powder systems including characterization procedures and rheology, and contains an extensive review of different methods that have been employed to study the structure of mixtures." Powder Mixing by Brian H. Kaye Hardcover, October 1997

For more pre-selected books for the materials handling pro,
Visit the Reading Room at:
http://www.powderandbulk.com/pb_services/readingroom.htm

Ask Joe! Column

"Hopper Retrofits Save Money"
Article by Joseph Marinelli
You can read Joe's article at:
http://www.powderandbulk.com/pb_services/askjoe.htm

Past Ask Joe! Archived Articles
http://www.powderandbulk.com/pb_services/ask_joe_archive/toc.htm

We Need Your Guest Articles!
Do you have an area of expertise in bulk materials, have you solved a difficult materials problem? You too, can be an Ask Joe! guest author!  Share your knowledge with others and promote yourself (the old publish or perish is true!) by contributing an article to the Ask Joe! Column.

For more information, please contact Joe Marinelli at:
Joe@SolidsHandlingTech.com

Integral Dust Collection

Jacksonville Beach, FL - RealTime Aide is pleased to announce the release of version 1.10 of its popular "live" customer service software, Personal Edition. Versions are now available in German, Spanish, Dutch, Swedish and Italian.

Tired of paying monthly fees to an application service provider for your customer service solution? Now you can offer live customer service without fees or banner ads, hosted through your own web site for only $199. Buy, own and customize our software!

RealTime Aide is pleased to announce the latest release, Personal Edition v1.10. Improvements in our 10th update include a "flicker free" display, improved Netscape compatibility, unlimited "seats" and multi-language support. Versions in German, Spanish, Dutch, Swedish and Italian are now available.

Personal Edition "live" chat software doesn't require any additional software, expensive programming, or hardware. And our seamless technology lets you establish one-on-one conversations in real time with anyone who visits your company's site using a standard web browser. This open dialogue makes it easy to immediately answer questions, provide information, and close sales.

It includes all the robust features of our former subscription-based service, hosted through your own web site.

The software package is priced at $199 USD and professional installation is available for only $75. Personal Edition software works on all Unix, Linux, NT, Win2000 and the upcoming XP web servers and virtual hosting services.

The upgrade from earlier versions to the new version 1.10 is free to all existing RealTime Aide customers.

For more information contact:
Mr. Joseph Taylor
RealTime Aide Dot Com, Inc.
3948 South Third Street, No. 111
Jacksonville Beach, Florida 32250
Telephone: 904-273-9650
Fax: 904-273-1399
Web Site: http://www.realtimeaide.com/
Email: jtaylor@realtimeaide.com

34,000 Visitors!

A record-breaking, 34,000+ professionals visited our web site last month!

That's more than 1,200+ people per business day!  They are looking for companies, equipment and services you offer!  Banner advertising is a great way to make your company stand out and reach these savvy material handling pro's.

Banner ads start at only $1,200 per year and include lots of extras like, enhanced listings, banner rotation in our web site and this newsletter.

Visit our banner ad sign-up page at:
http://www.powderandbulk.com/pb_services/bannerads.htm
...or call Joe Taylor at 904-280-4656

Want a Rate Card?  It's Easy!
Send a blank e-mail to: rates@powderandbulk.com

Free Listings
Does your company offers equipment or services to the bulk materials handling & processing industry and do you think your company's web site should be listed in our directory?  You can be listed - FREE! Just go to our link request 
page at:  http://www.powderandbulk.com/pb_services/link.php

New Bulletin Available

Broomall, PA - For crusher cages, the new Buster Bar from Pennsylvania Crusher Corporation serves to extend screen bar life many times. The company produces this hard-faced screen bar for all cage requirements including upper, intermediate and lower screen bars as well as scrubber bars.

Buster Bar holds the required grind longer than ever before possible, resulting in less frequent cage maintenance and lower cost-per-ton crushed. Users also report that power demand has been reduced and capacity increased in many power plant installations. The wearing surface is a form of hard facing specially designed for this application.

Pennsylvania Crusher Corporation ("PCC") is a pioneer in the design and manufacturing of crushing machinery and replacement parts. Founded in 1905, PCC has been solving the crushing problems of its customers with the most advanced technology, the highest quality machinery and unparalleled service for over 90 years. Today, PCC machines crush 75% of all the coal produced in the United States and are used for practically every material reduction and processing application in 59 countries around the world.

PCC headquarters are in Broomall, Pennsylvania (a suburb of Philadelphia) which houses the Engineering, Marketing, Laboratory, and Administrative departments. Production of PCC products is handled at their 70,000 sq. ft. (6,500 sq. m.) manufacturing facility in Cuyahoga Falls, Ohio.

For information, contact:
Lee Doyer
Pennsylvania Crusher Corporation
600 Abbott Drive
Box 100P
Broomall, PA 19008
Phone: 610-544-7200
Fax: 610-543-0190
E-mail: buster@penncrusher.com
Web site: http://www.penncrusher.com/

Help Forum

People post their requests for help and offer their suggestions to others in our open forum.

Mr. Arderius wants roll hullers for barley:

I'm looking for manufactures of roll hullers for barley with husk aspirators.

The total capacity is 78 T/H (barley, d= 0,65 t/m3) the roll hullers will be placed before hammer mills. (Click here to post a reply)

Thank you for your help,
Fernando Arderius
STOLZ, S.A.
COLOMBIA, 64 -5º A
28016 MADRID (SPAIN)
TEL.: 00 34 91 350 1315
fam@stolzsa.com

Ted wants air cyclones:

I am trying to find a manufacturer of cyclones who can fab a cyclone in s/s with ground & polished internal welds.

I don't really need 'sanitary', more like ground & polished with no place for tiny particles to hang up. (Click here to post a reply)

Thanks
Ted
shredr@att.net

These and other messages can be found in the Help Forum.
Share your expertise with others:
http://www.powderandbulk.com/cgi-bin/yabb/YaBB.pl?board=general

Photos Wanted

This week's homepage photo is of a Mavi heavy-duty vibratory conveyor in operation at Latin America's most advanced foundry, LuK in Mogi Mirim, Brazil. Thirty tons per hour of castings are being conveyed and simultaneously cooled from 150 to 50 Celsius.

Photo courtesy of Mr. Thomas Bussius of Mavi Maquinas Vibratorias Ltda.

We would love to have your photo of a bulk materials process, packaging, conveying or handling "action shot" for our home page. If you have a favorite photograph of bulk materials handling at its best, please e-mail us a jpeg or gif of the photo with a description of what is in the photo for our home page.

Full credit and the description of the photo will be given.  Photographs are be changed every two weeks to give everyone a chance to be included.  Send your photograph and description to:
news@powderandbulk.com

Jobs

Manufacturers Representatives Wanted

PEBCO is currently seeking representatives in Arkansas, West Tennessee, and Northern Mississippi. PEBCO is recognized as a world wide manufacturer of powder and bulk solids equipment such as gates, diverters, loading systems, and loading spouts.

Interested rep agencies please contact
Mark Kettler
Director of Sales & Marketing
at 270-442-1996, Extension 202
or via email at kettler@pebco.com

For more information on our equipment, please visit our website at 
http://www.pebco.com/

The Job Fair is a free service of Powder and Bulk Dot Com.  You can post job opening for managers, engineers, sales, reps or other talented people you need. ...Or one can post their resume for companies who are looking to add talented people to their staff.

Do you have a position you need to fill, visit the Job Fair:
http://www.powderandbulk.com/cgi-bin/yabb/YaBB.pl?board=jobs1

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About Us

© 1999-2001 Powder and Bulk Dot Com
Home page:  http://www.powderandbulk.com/

Joseph Taylor, Editor
Powder and Bulk Dot Com Newsletter
3948 South Third Street, No. 121
Jacksonville Beach, FL 32250

Phone: 904-280-4656
Fax: 904-273-1399

Email:  jtaylor@powderandbulk.com

Powder and Bulk Dot Com's Newsletter is a 100% opt-in e-mail list of information for the materials handling professional.  We love your suggestions and comments.  Drop us a line at:
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