With the Internet age well upon us, the need for paper continues to decline. So naturally, paper manufacturers haven’t fared especially well in recent years. While it’s highly doubtful the world will find itself completely paperless anytime soon, there’s already been enough of a shift to put plenty of players in the paper industry out of work.
It’s been an especially unpredictable last 10 years for the old Champion paper mill in the Houston suburb of Sheldon, Texas. But there’s nothing uncertain about its fate any longer, now months into a multi-million dollar demolition project to dismantle the decades-old facility.
The future looked much brighter for the Sheldon mill in 1998 when Champion International Paper sold the facility to Donohue Inc., a Canadian company that promptly invested more than $100 million to upgrade Sheldon’s newsprint machines and increase its production capacity to 472,000 metric tons per year.
But only two years later, the mill changed hands again when Donohue was acquired by Abitibi-Consolidated (now AbitibiBowater following a merger between Abitibi Consolidated and Bowater Inc. in 2007). Shortly thereafter, in an effort to reduce high energy costs, Sheldon was converted to a 100-percent recycled paper operation, up from its previous levels of 75 to 80 percent back in 1998.
Even after all the money and effort invested into modernizing and repurposing the mill, Abitibi indefinitely idled the facility in late 2002. The mill’s precipitous fall continued in 2004 when it was closed down permanently. The final nail in the coffin came in 2006 when the property was sold to a developer with plans to turn the site into an industrial park.
AIMING HIGH
With its long history almost completely written, the Sheldon mill had nowhere to go but down when Utah-based Grant Mackay Demolition Co. arrived on scene with a 20-man wrecking crew in September 2008. The contracting firm, in business since 1983, is no stranger to large-scale demolition jobs, although this was the company’s first assignment in the state of Texas.
"We primarily work in the intermountain area—Idaho, Wyoming, Utah and a few other states in the Southwest," says Grant Mackay, owner of Grant Mackay Demolition. "Our main thing is demolition, although we also do some excavation and construction work. Over the years we’ve worked our way up to where now we have about 100 employees and anywhere from 10 to 20 jobs going at one time.
"We tackle some pretty big jobs, including the Geneva steel plant demolition in Utah a few years back. One of the financers on that project was involved with the site here in Sheldon. They were pleased with what we did at Geneva and called us in to submit a bid."
Multi-Tasking In today’s challenging economy, demolition contractors are increasingly looking for tools that will help them tackle jobs efficiently. Accomplishing more tasks with less equipment makes processing attachments with multiple jaw sets increasingly popular on jobsites. A number of manufacturers offer multi-processors and many are introducing new products to the marketplace. Youngstown, Ohio-based Allied-Gator’s MT Series Multi-Tool is available in sizes from 800 to 52,000 pounds and uses the company’s patented Power Link & Guide System to provide a steady increase in power and control over the tool as it closes. The tool is available with shear and cracker/crusher jaw sets. Superior, Wis.-based Genesis Attachments’ line of Logix Processors (LXP) offers three quick-change jaw sets—a pulverizer, cracker and shear. LXPs are available in sizes to fit excavators in the 20,000-pound to 120,000-pound range. The company’s line of VersiPro attachments is designed for use with smaller carriers, like skid steers and mini-excavators. Breaker Technology Inc. (BTI), headquartered in Ontario, Canada, offers the MS Series Multi-System, which is designed to work as a second or third member on a variety of carrier sizes. The tool has interchangeable crusher, pulverizer and shears jaws. In addition to traditional multi-processors, manufacturers are making other combination attachments available. Genesis launched the Genesis Demolition Recycler (GDR) in 2008. Designed for third-member use on machines in the 45,000-pound class and larger, the GDR delivers 115 tons of crushing force at the tip, a 32-inch jaw depth, a jaw opening of 35 inches and a quick 5.5-second (at 66gpm) cycle time. The tool can be custom-configured with as few as five pulverizing teeth and 16-inch blades to as many as 19 teeth and a 4-inch cutting blade. Tramac Corp. introduced the Muscle Mate Super Cosmo pulverizer/magnet in 2008. The Super Cosmo offers pulverizing capabilities with a built-in magnet with lifting capacity in excess of 9,000 pounds. Various models are available for carriers ranging from10-45 tons. More information about the latest innovations in processing attachments is available in the products section of Construction & Demolition Recycling’s Web site at www.CDRecycler.com/products/.
All totaled, the Sheldon complex covered around 1.5 million square feet. In addition to asbestos abatement and interior demolition of the main buildings that had housed workers and newsprint manufacturing while the mill was operational, the project involved a fair amount of high reach work, including the removal of a 100-foot-tall power plant. Several tanks and other miscellaneous structures also posed some height-related challenges.
"Typically we handle high reach demolition work with a hydraulic attachment, rather than putting people in risky, elevated situations," says Mackay. "Our primary high reach machine and processor were tied up on a mall demolition job in Salt Lake City, so we decided to purchase new equipment to help take down the paper mill."
MAKING THE CUT
Grant Mackay certainly needed an attachment with ample cutting power to keep the job moving, but the company also knew the attachment needed to be as lightweight as possible. Too much weight would make it difficult for an excavator to safely elevate the attachment to the extreme heights of the tallest structures.
Mackay contacted Rasmussen Equipment Co., a local dealer from its home territory, and purchased a new Link Belt LX 700 high reach excavator, a machine with extended booms designed to reach heights of up to 110 feet. To complement the excavator, Rasmussen also sold Grant Mackay an Atlas Copco CC 3300 Combi Cutter, an attachment that offers a maximum cutting force of 441 tons.
"We decided on the Combi Cutter because it’s a very lightweight unit when you consider how powerful it is," said Mackay. "And that lower weight has allowed us to attain a higher reach than would have been possible with a heavier, bulkier attachment."
The CC 3300 weighs 7,320 pounds when equipped with steel-cutting jaws and 7,670 pounds when using universal jaws for crushing concrete. "It’s being used to facilitate the more substantial demolition of the taller structures so we can get them down to more manageable heights," said Mackay. "It’s cracking concrete in some areas and cutting steel in others. Fortunately we’re able to transition between cutting jaws very quickly when necessary."
Quick work is exactly what Grant Mackay Demolition needed out of the CC 3300, given that it’s the only high reach tool on the site.
Grant Mackay is well on track to meet the July 2009 deadline for project completion. After its high reach responsibilities at the mill have been fulfilled, the CC 3300 will continue to assist with secondary reduction tasks, including cutting steel beams on the ground. By the time the job is done, more than 30,000 tons of steel and another 30,000 tons of concrete from the various structures at the Sheldon facility will have been removed and processed. The steel will be sold off, while the concrete will be recycled and used in the re-development of the Sheldon property into an industrial complex for warehouses, contractors and other businesses. C&DR
This article was submitted on behalf of Atlas Copco Construction Equipment LLC, Commerce City, Colo.
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