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- Press Releases, Show Announcements and Industry News Wanted! - Fine Cutting Granulator For Cellulose Processing - New Powder Processing Event - Top Picks at Amazon.com - Ask Joe Column! - Bextruder Well-Suited for the Production of Ag Chemicals - Powder and Bulk Dot Com had over 35,000+ visitors in February! - Vibratory, Loss-in-Weight Feeders - Hot Messages from the Help Forum - Call For Photographs! - From the Job Fair - Subscribe, Unsubscribe, Sponsorship & Archive Information - ReferWare - About Us
From the Editor
Hi Everyone,
Our goal is to provide information to improve your business by using the resources available on the Internet.
Industry News, Press Releases & Announcements Wanted!
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 March 10th.
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
Ideal for Film, Plastics and Fibers
Fine Cutting Granulator For Cellulose Processing
EXTON, PA, FEBRUARY 2002 — Netzsch-Condux, a proven leader in the size reduction of powders, now manufactures a fine cutting granulator. The CS 500/1000 Z series, with a rapid cutting sequence, is used primarily for size reduction of cellulose and can be employed for any material that can be reduced by cutting.
This mill features sixteen rows of sectional rotor knives and up to nine bed knives. These knives operate at high speeds, performing up to 144,000 cuts per minute. Another essential feature of the Netzsch-Condux fine granulator mill is its open rotor design. The open rotor design results in less restricted cooling airflow through the mill; and together with the rapid cutting sequence, achieves high throughput rates. High quality fine powders, including most temperature-sensitive materials, can therefore be easily processed in this machine.
The Fine Cutting Granulator is ideal for processing both cellulose and film, improving flow properties and increasing the bulk density. This mill can also be used to process plastic chips, natural and synthetic fibers, foam and rubber.
Netzsch Incorporated is the North American subsidiary of the globally operating group of Netzsch companies. Netzsch is the world’s leading manufacturer of wet and dry grinding and dispersion equipment, progressing cavity pumps, and filtration systems. Netzsch Incorporated has been serving North America for more than 30 years.
For more information contact: Netzsch Incorporated Grinding and Dispersion Division Telephone: 610-363-8010 Fax: 610-363-0971 E-mail: grinding@netzschusa.com Web Site: www.netzschusa.com
"Informal Seminar"
New Powder Processing Event
When: April 17-18, 2002 Where: Chesterfield, UK
One of the UK's leading powder processing companies British Rema Ltd is holding a special processing seminar at its new technical center in Chesterfield. This highly informative seminar, to be held on 17th and 18th April, will involve experts from across the processing industry speaking on a wide range of subjects including classification and micronization, on-line particle sizing, screening technology and hazard assessment.
Managing director Chris Bird explains: "Our new technical center has given us the perfect facility for holding a seminar of this nature and we are looking forward to welcoming businesses from all sections of the processing industry. We are keen to pool resources and expertise and for existing and potential customers to benefit from shared information and expertise."
Presentations will be made by British Rema's UK Sales Manager Malcolm Cunningham, Jim Scotland, Process Specialist with Malvern Instruments, Pieter Zeewen, Technical Manager at process safety consultancy Chilworth Technology, Lyn Bates, Managing Director at Ajax equipment and Mike Birt, Screening Specialist at bulk handling equipment manufacturer ROTEX Europe.
The seminar will also feature a practical demonstration by British Rema on air micronization and on in-line particle size analysis by Malvern Instruments. Malcolm Cunningham will focus on size reduction and classification of fine powders. The presentation will focus on the increased demands from most industry sectors for consistently well-defined fine particle size distribution powders, an area in which air classification is extremely important.
Jim Scotland of Malvern Instruments will present a paper on additions to the Insitec range for on-line particle sizing. He will outline how integration of on-line particle sizers into a process line brings the benefits of on-line quality control, process control and process optimization.
Pieter Zeewen of process safety consultants Chilworth Technology will describe dust explosion hazards in powder handling. His presentation will examine how to ensure safe operation of any plant handling flammable materials to prevent explosions.
Lyn Bates of Ajax equipment will introduce the fundamental nature of particulate solids and their relative requirements in terms of storage and handling. The presentation will cover the characterization of bulk solids, highlighting the practical aspects of evaluating powder behavior in relation to varied scales and forms of industrial uses.
Mike Birt of ROTEX Europe will describe the screening capabilities of its range of ROTEX screeners, relevant to the processing of fine powders. Using actual examples across different sectors of the powder industry, he will outline how the company has created complete screening solutions tailored to suit fine powder applications.
Chris Bird continues: "We have carefully selected speakers for the seminar from a variety of different businesses, who will provide informative, impartial advice relevant to the majority of powder processing applications. We have received a number of enquiries already regarding the seminar and advice anyone interested in attending to contact us as soon as possible."
Thank You! We thank you for your continued support of the Reading Room. Do you need a book? Can you suggest a book you love, that we should have in the Reading Room? Let me know and we will try to include it!
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.
Bextruder Well-Suited for the Production of Ag Chemicals
The Hosokawa Bextruder is a low-pressure basket granulator for pelletizing or granulating food, mineral or chemical products that was recently sold for a large agricultural chemical manufacturing process. Designed for easy maintenance and trouble free retrofitting, the model sold for this application can produce up to 3,000 lb/hr of extruded product with a 1mm diameter. This extrusion technology achieves both the desired shape and dissolution properties for this application.
In this particular agricultural chemical application, a dough or paste-like material is fed to the product chamber, which contains an upper rotor that mixes and conveys the material downward to a second rotor. The lower rotor densifies the material and conveys it through the surrounding screen to produce a cylindrical pellet shaped product. The diameter of the pellets can range from 0.3 to 3mm.
In this manufacturing process, the Bextruder is used to form a mixed product into the desired cylindrical pellet shape. The components of the blend are generally mixed in another piece of the equipment upstream of the Bextruder. The particles are formed at a very low pressure; giving good dispersion, compression and dissolution properties in the final product. The pellets are discharged from the Bextruder into a fluid bed for drying and cooling before packaging.
Hosokawa Bepex has a pilot scale Bextruder in its test facility in Minneapolis where customers can conduct trials prior to purchasing. Bepex can scale up test results to production scale machinery with confidence.
For more information contact: Hosokawa Bepex 333 N.E. Taft Street Minneapolis, MN 55413 Telephone: 612-331-4370, 800-607-2470 Fax: 612-627-1444 E-mail: info@hbpx.hosokawa.com Web site: http://www.hmicronpowder.com/
35,000+ Visitors!
Powder and Bulk Dot Com had lots of visitors in February
A record-breaking, 35,000+ professionals visited our web site last month!
That's over 1,600+ people per business day! They are looking for 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.
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
Uniform, Non Pulsing Feeding
Vibratory, Loss-in-Weight Feeders
Pembroke, MA - Thayer Scale's patented loss of weight cable scale with vibratory feeder and "FMSS" cable scale technology is designed to assure uniform, non-pulsing accurate feeding of a wide range of free flowing to friable to cohesive materials.
The advantage to using vibrating tray feeders is their ability to operate over a very wide feed range (typically 50:1 or greater) and provide exceptionally uniform flow rate with most materials. However, standard metallic vibrating trays and trays lined with various coatings fail to prevent to prevent material such as TiO2 from adhering to the pan surface creating compaction layers and eventually stopping flow. To solve this problem Thayer Scales engineers were able to find the right combination of materials and mounting design that allows the use of an elastomeric membrane that coupled with the correct pan frequency allows for metering of even the most difficult of materials.
In operation the patented "Nodal-Membrane" produces transverse, multiple-node standing (vibration) waves in the elastomeric membrane. These waves shed adhering materials by magnifying the alternating tensile and compressive surface strains at the conveying surface.
The Nodal-Membrane is combined Thayer's Spiralator hopper agitator, which uses a counter-rotating spiral that gently lifts and conditions the material. It is ideal for vibrating tray feeders by relieving the tray of the full weight of material, thus, tray amplitude is steady and material flow is uniform.
Thayer Scale is a pioneer-developer of continuous weighing and feeding equipment for the dry solids conveying and processing industries. Their weigh belt and loss of weight feeders cover an extremely wide range of applications covering virtually all industries that involve dry solids conveying and processing.
People post their requests for help and offer their suggestions to others in our open forum.
Brendan needs help with bulk materials theory:
I have a theoretical question for you. We have a hopper with a slide gate located above a screw conveyor. The hopper is mounted on load cells and the screw is mounted directly to the floor.
Presuming the screw is not running. If I open the slide gate, and allow the material to flow down into the screw, what will the weight reduction seen by my load cells be?
Will it be equal to the column of material directly above the screw that is now supported by the screw?
Once I close the slide gate, will my load cells see an increase in weight to reflect the fact that the column of material is no longer being supported be the screw, and is now supported again by the load cells? (Click here to post a reply)
I need to convert a molten, waxy liquid to a dustless, conveyable solid. No room for a pastillator. What equipment might work? (Click here to post a reply)
This week's homepage photo is showing material flow from three, single screw feeders - demonstrating K-Tron's new feeder screw modulation algorithm that can improve short-term feeder accuracy on single screw feeders by up to a factor of two.
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
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