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VIDEO: Astec KPI-JCI Plant Offers Cost-Saving Solution for Quarry

Wed January 06, 2021 - Midwest Edition #1
Katherine Devlin – CEG Editorial Assistant



The new KPI-JCI plant for Pana Limestone in production making IDOT specification products for asphalt and concrete.
 The new Astec KPI-JCI crushing and screening plant being set up at Pana Limestone Company.
 Quarry operations begin with the dragline stripping overburden.
 A wheel loader feeds the KPI 5054 primary mobile crusher, located in the pit. 
 The Astec KPI-JCI 5054 Hybrid features an impact crusher with a feed opening of 58 in. and an apron setting range of 4 in. to 8 in. 
 After the rock is crushed, it is transported via a 1,000-ft. overland conveyor up to the processing plant where it is screened, sent to a secondary crusher for resizing and then to the finish screen.
 The JCI 7203 #1 primary screen tower is put to work scalping larger rock that will go to the secondary crusher.
 The JCI 7203 #1 primary screen tower and KPI 5260 impact crusher is set up as part of the new plant at Pana Limestone Company. The JCI 7203 #2 finishing screen is tasked with making the final IDOT specifications before delivery to the end user. (L-R) are Jason Zeibert, president, Finkbiner Equipment Company; Clyde Robison, vice president of sales of Finkbiner Equipment Company; Nathan Moreland, plant supervisor of Pana Limestone Company; Jason Loxley equipment manager of Truman L. Flatt & Sons Company LLC; and Jake Lefever, quality manager of Pana Limestone Company.

Pana Limestone Company, founded in 1969 by St. Louis Slag Co., is a quarry operation that produces rock for concrete companies, asphalt and local roads. It was operated by several owners over the years, before being purchased in 2003 by Truman L. Flatt & Sons of Springfield, Ill., a road contractor that was looking for a way to vertically integrate its road company.

"We primarily are an A-quality quarry, which means that our products here are usable in concrete and asphalt," said Jason Loxley, equipment manager of Truman L. Flatt & Sons. "We primarily try to feed our own companies — a road contracting company with asphalt and concrete plants — but we also service the agricultural industry, townships and others."

According to Terry Engelman, an employee of Pana Limestone Company for 50 years, the quarry was started in 1969 and went into operation in 1970. By 2002, more than 365 acres were mined, with a reserve of approximately 23 million tons. Today, Engelman estimates a reserve of close to 20 million tons.

The quarry itself was founded almost by accident.

"In 1965 or 1966 [companies] were looking for oil and drilled a couple holes. That's when they decided the rock was good in here," said Engelman. "This rock vein that we're sitting on is the Stonington Ridge and it was dumped here by the glaciers. It averages about a mile to a mile and a half wide with a lot of variances in quality of the rock, but it stretches from Nokomis, Ill., and snakes its way up to Stonington, Ill."

Cutting Costs

In 2018, the company decided to look into ways to cut costs, while still delivering its A-quality product. One of the major expenses within this process is trucking and as the distance from the pit grew, so did the trucking cost. Big off-road trucks are expensive to run, as well as the staff needed to operate and maintain them.

"I was tasked with coming up with a new method for crushing, producing and transporting rock from the pit to a new plant to cut down on trucking costs," said Loxley.

The need to decrease input costs led the company to consider the addition of a crushing and screening plant — making the rock smaller would make it easier to transport.

Once the decision was made, Clyde Robison, vice president of sales of Finkbiner Equipment Company in Peoria, Ill., helped Pana Limestone design a plant that would optimize its operation.

Research Leads to Options

According to Loxley, quarry managers, owners and others participated in researching options to make the best choice for the company. They looked at the very portable all-diesel track machines; all-electric options; semi-stationary machines; and a combination of all.

Robison also helped and pointed Loxley in the direction of an Astec KPI-JCI plant that would save on trucking costs by allowing Pana to continue loading with wheel loaders, as it had hoped to do.

"After all the research, we felt the Astec KPI-JCI line sold and serviced by Finkbiner Equipment Company was best-suited," said Loxley. "We already have several large wheel loaders and wanted to continue with that method."

Also important in the decision-making process is that Pana Limestone is an Illinois Department of Transportation certified plant.

"Given our current operation, we designed the new plant with the same method of crushing and screening," said Loxley. "That left us with the same type of equipment and method of operation to be IDOT certified. If you change the method, you have to recertify more of the operation. So, we stayed with the same method of operation we were previously using — two HSIs [Horizontal Shaft Impactors] with horizontal screens."

New Plant Design

Robison and Astec KPI-JCI listened to Loxley's needs and came up with a set up that would work — a whole new plant. A wheel loader feeds the primary mobile crusher, located within the quarry. After the shot rock is loaded into the primary and crushed, it is transported via a 1,000-ft. overland conveyor to the semi portable plant where it is screened with an option to make surge rock, then sent to a secondary impact crusher for resizing. From the secondary crusher, the material is sent to the finishing screen, which makes all the core products required to feed the company's concrete and asphalt plants, along with road base and Ag lime. Provisions also were incorporated within the new build to allow for future specification products to be produced if needed.

"A primary difference between what we were doing in the past with our rock production and what we've done with this new KPI-JCI plant is we have brought the primary crusher to the pit, we're feeding it with an end loader and we have eliminated all the trucking from the pit to the plant," said Loxley. "This primary crusher is a KPI-JCI 5054 mounted on a mobile chassis that allows us to move it as we progress through our property. We can move this and transfer land conveyors."

Loxley can see the savings already.

"This new KPI plant requires zero trucking. By having this plant, we also have reduced our trucking to the old plant by 40 percent," he said. "We're now using a large load and carry wheel loader working in a short cycle at the pit to maximize feed to the crusher. You can imagine the savings we have from that."

Easy Set-Up

Once everything was ordered and all the drawings were approved for the site, the equipment was delivered to Pana — requiring approximately 26 truck loads.

"I was tasked by the owner of our company to assemble the plant," said Loxley. "We did not hire an outside company — we did it with our own personnel. We did it with people who are experienced in the aggregate business, but maybe not experienced with erecting a plant. The drawings and the help we received from Finkbiner and KPI-JCI was phenomenal. Any time that we had a question, they were approachable by phone calls and emails. We sent several pictures back and forth. When we needed something, things were resolved. During the assembly process, I never lost a single day of work because we were missing parts or couldn't figure out how something went together, potentially leaving us at a stopping point which may have required sending someone home. It couldn't have gone together better."

Astec KPI-JCI 5054 Hybrid

The wheel-mounted Horizontal Shaft Impactor plant is comprised of:

  • Hopper/vibrating grizzly feeder module with a 50-in. by 20 ft. horizontal type oil lubrication vibrating feeder and a 5-ft. replaceable and adjustable deck grizzly section.
  • Impact crusher — HSI with a feed opening of 58 in.; an apron setting range of 4 to 8 in.; 450 to 600 rpm; a fully-lined chamber and apron with abrasion resistant steel liners; hydraulic adjustment; and a hydraulically activated Anti Bridge feature and rear door.
  • End delivery conveyor with 48-in. frame; belt cleaner; screw take-up belt tension; and 35-hp motor, mount, drive and guarding.
  • Chassis — a semi-trailer with quad real axle; rear crib leg and king pin support; 16 11.00 by 22.5 dual-mounted tires; air brakes, travel lights, mud flaps; a bypass chute under grizzly module; and service platforms behind and beside the crusher.

Many options are available, including 300 hp TEFC electric motor at 1,200 rpm; a 300 hp starter and 60 ft. cable; electric motor controls for basic plant; 50 in. by 24 ft. vibrating feeder; and more.

Astec KPI-JCI 5260 HSI Secondary Crusher

The crusher includes:

  • Rotor assembly — SAE4150 solid steel shaft; grease lubricated spherical roller self-aligning bearings; 3-bar or 4-bar MPR segmented rotor design; and an 8V rotor sheave.
  • Blow bars — multiple metallurgies to fit specific applications; reversible.
  • Primary and secondary aprons — fully lined, fabricated apron with abrasion resistant steel liners and hydraulic adjustment for easy crusher setting.
  • Crusher housing — a fabricated plate with side inspection doors; hydraulically activated rear access door; and 1.25-in. abrasion resistant steel chamber liners.

Options available include an electric, diesel or hydraulic crusher drive; v-belt drive; hydraulic power pack for crusher lid; jib crane for blow bar removal; receiving hood; and a safety type v-belt guard.

Advantages of New Plant

Pana has found many advantages of the new plant, including its ability to make surge rock. This rock can then be trucked to the old plant at a much lower cost than it was being done before.

"That was a big help and is probably not something we would have thought on our own," said Loxley.

Downtime also has become more manageable without the need to run a 50-year-old plant at full capacity.

"We now have options that allow continuous production every day," he said. "We looked at several options and ultimately chose Finkbiner for its knowledge. From design to start up, they were right there assisting in all aspects. It was a very positive experience."

"We are proud to bring KPI-JCI AMS's capabilities of a total solution spread that brings best in class ROI," said Jason Zeibert, president of Finkbiner Equipment Company. "Their ability to offer engineered modular packages with customized structures allows quick labor assembly along with smooth material transitions and movement down the line." CEG

This story also appears on Aggregate Equipment Guide.




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