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WL Port-Land Systems, Inc. Report
March 2019
 
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Some Thoughts On: Our new website is “live!”
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Rich Pongratz
We have been working on our new website for some time. Between our travels and our myriad of daily work, there were times when the development of the new website fell through the cracks. But no more! We are excited that it is up on the web, showcasing our services and our people. Our new website has a modern design with great photos, and it does a great job informing the viewer of what we do and who we are. It is designed for viewing on desktops, iPads and cell phones.

When you have time, I invite you to take a look at our new home on the web and let us know what you think.

www.wlport-land.com
Tim Lease
Richard K. Pongratz, Director of Business Development
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Ask the Expert
Wear Liners – What’s Right?
Send your question to our team of experts.
Q"What should I look for in liners? How do I choose the right liner?"
– R.T.

AR.T., this is a frequently asked question and I am happy to address it again.

Liners can provide resistance to both abrasion and corrosion, improved sanitation and clean-out, and improved flowability. Although my answer here will focus on enhanced abrasion resistance in chutes, transitions, spouts, and hoppers, it is important to keep in mind that liner selection will offer inherent differences with regard to the other above-mentioned parameters.

We have all struggled at times with liner selection, comparing useful life with or without liners to upfront capital cost. There are diverse applications for liners in bulk material handling. Many of the materials handled impose potential severe wear in areas of impact and sliding.

As it applies to these applications, abrasion is the gradual removal of a surface as a result of contact with another material. In the case of liners, this can be imposed by the impact or the sliding of materials such as aggregates or whole grain or by the impact of high-velocity dust particles on the exposed surface. More specifically, this wear can be classified into the following categories:

  • Impact abrasion. Removal of a wear surface by the spalling, gouging, or cutting action of impacting abrasive particles.
  • High-stress abrasion. Removal of a wear surface in small quantities by the sliding, cutting, and plowing action of smaller abrasive particles under high loads.
  • Low-stress abrasion. Removal of a wear surface in small quantities by the sliding, cutting, and plowing actions of smaller free-flowing abrasive particles under lighter loads.

Design of the chute, spout, or hopper to provide lower-velocity, minimal directional changes or to provide a dead box to allow material to impact material can often minimize wear. Space limitations, required clean-out, or the physical properties of the material being handled will make proper liner selection and proper installation a must.

Although there are variances within these categories, the more commonly used liners in bulk material handling fall into these categories:

  • Abrasion-resistant steel (AR)
  • Ultra-high molecular weight polyethylene plastics (UHMW)
  • Urethane
  • Ceramic
  • Ceramic combination composite

I’ll try to break down the advantages and disadvantages of some of these as I see them.

  • Abrasion-resistant steel (AR). The advantages are medium cost, wide availability of variance in hardness and alloy composition to custom fit the application, workability and ease of installation, and relatively low coefficient of thermal expansion. The disadvantages are high weight per square foot, noise during impact, and corrosion.
  • Ultra-high molecular weight polyethylene plastics (UHMW). The advantages are low cost, workability and ease of installation, low coefficient of friction, low water absorption minimizing potential freezing of material to the liner, low weight per square foot, noise reduction, and resistance to corrosion. The disadvantages are relatively low resistance to abrasion and relatively high coefficient of thermal expansion.
  • Urethane. The advantages are medium cost, wide availability of variance in hardness and abrasion resistance characteristics, workability and ease of installation, low weight per square foot, noise reduction, resistance to corrosion, and relatively low coefficient of thermal expansion. The disadvantages are toxic fumes from burning and low abrasion resistance in higher velocity pneumatic applications.
  • Ceramic combination composite. The advantages are enhanced resistance to abrasion with energy absorption equivalent to that of the urethane, resistance to corrosion, noise reduction, and relatively low coefficient of thermal expansion. The disadvantage is relatively high material cost.

These bullet points are not meant to be an exhaustive list but should provide enough information for you to begin comparing liners for your application.

Tim Lease, President and P.E. Tim, who is a Principal and cofounder of WL Port-Land Systems, has been involved in the engineering and construction industry since 1984. Tim has expertise in material storage and handling and process engineering, facility evaluation, and all aspects of feed mill management, design, construction, renovation, and maintenance.

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NEED HELP WITH PROCUREMENT?
WL Port-Land Systems, Inc., as a Design/Build Engineering and Construction Company servicing multiple industries, has built an extensive vendor base over the years. Once we complete a project and the facility is in operation, many of our customers come back to us for aftermarket parts and equipment. We have the ability to provide end-to-end turnkey solutions for all project-related procurement, expediting and freight services to our existing customer base and, naturally, to prospective customers. As an EPC company, we are well equipped to evaluate, recommend, implement, and manage all of a customer’s procurement needs, including vendor sourcing, inquiry, technical review and commercial evaluation, vendor selection, order placement, expediting and delivery. WL Port-Land Systems, Inc. Procurement and Logistics offers the most flexible, cost-effective outsourcing solutions. Our team has worked closely with many of our vendors worldwide and is here to meet your challenges.

E-mail or call us -- at 412-344-1408 -- we welcome the opportunity to provide these services.

What do you have to lose?
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Did You Know?
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…how much concrete and steel are in a typical feed mill? If we assume a slip-formed concrete feed mill and steel grain storage along with all the necessary ancillary structures, the amounts may surprise you.

There is enough concrete in the feed mill structures to make a typical sidewalk 30-40 miles long or a single-car driveway 8-10 miles long or a two-lane DOT-approved highway that is 2-miles-long.

And how many pounds of steel are in a feed mill facility? Well, it is equivalent to the weight of about 500 Chevy Impalas!
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Featured Project
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WL Port-Land Systems, Inc. continues work on Kent Nutrition’s feed mill expansion project in Sheldon, IA. This large expansion project includes new storage facilities, multiple pelleting and bagging systems, a truck loadout system and a new warehouse, along with all the necessary support systems.
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Events Calendar
WL Port-Land Systems will participate in these industry events. Click to set up an appointment with a rep.
April 29-May 1, 2019
2019 Petfood Forum
Kansas City, MO
May 13-16, 2019
World of Coal Ash 2019
St. Louis, MO
July 15-17, 2019
National Turkey Federation Leadership Conference
Washington, DC
 
 
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WL Port-Land Systems Report Archive:
 
 
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About WL Port-Land Systems, Inc.
  • Visit our website.
  • Contact us via e-mail.
  • Contact Rich Pongratz
  • You can call us at 412-344-1408 or fax us at 412-344-1412.
  • You can "snail mail" us at 305 Mt. Lebanon Blvd., Suite 400, Pittsburgh, PA 15234.
We look forward to hearing from you!
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