Rock Products is the aggregates industry's leading source for market analysis and technology solutions, delivering critical content focusing on aggregates-processing equipment; operational efficiencies; management best practices; comprehensive market
Issue link: https://rock.epubxp.com/i/511782
www.rockproducts.com ROCKproducts • May 2015 • 77 EQUIPMENT & TECHNOLOGY CRUSHING & BREAKING The ability to quickly adapt to unforeseen situations is key to thriving as a producer in a tight job market. But for Gene Henrie, owner of Quality Crushing, Cedar City, Utah, con- quering unexpected challenges is just part of the job. When Henrie was first contracted to crush ore for CS Min- ing LLC, Milford, Utah, the job required him to produce 3/8-in.-minus material from two ore bodies. Four months into the project, the crushing producer was asked to meet a 1/4-in.-minus spec from a wider range of ore bodies to in- crease production through the ball mill and assist in the flo- tation and grinding processes. With the help of his local deal- er Goodfellow Corp., Henrie was able to meet the demands of the job with ease and help increase production of the plant. "We really didn't know if we could make that specification work in the beginning," Henrie said. "It's something we have never been able to do before. But we've been able to meet their spec and it's really helped their production." End Material To produce the end material, Henrie first processes the shot rock through a jaw crusher, then conveys the material to a secondary cone crusher fitted with a medium-fine liner, and finishes with a tertiary cone crusher fitted with an extra fine liner. The crushed ore goes from the stockpile directly into the ball mill. The resulting slurry is then pumped into a flo- tation separator, where the non-product bearing minerals and waste material are removed. To accomplish this, Henrie utilizes an extensive spread of KPI-JCI and Astec Mobile Screens equipment, including four 7- x 20-ft. horizontal screens, two 6- x 20-ft. horizontal screens, an 8- x 20-ft. horizontal screen, four Kodiak Plus K400+ Cone Crushers, a Kodiak Plus K300+ Cone Crusher, two 3144 Vanguard Jaw Crushers and two SuperStacker ex- tendable stackers. Henrie obtained his equipment from Goodfellow Corp., an authorized KPI-JCI and Astec Mobile Screens dealer with lo- cations in Utah, Nevada and California, and worked closely with the dealer to design a plant layout and test the equip- ment to ensure he was able to meet 100 percent passing 1/4-in.-minus. Once confident he could meet the desired spec, Quality Crushing began working with six ore bodies to crush the ore for the mine. The company is currently producing about 1,800 tph each day, on a 10-12 hour shift, Henrie said. Diversity In addition to meeting a challenging spec, Henrie noted that one of the biggest challenges with processing ore is manag- ing the diversity in material in each ore body. To overcome this, Henrie has worked closely with Goodfellow Corp. to be able to continually adjust the screens and the cone crushers to achieve the best production. Verified Versatility Jaws, Cones, Stackers Help Quality Crushing Meet Spec for Customer. By Mark S. Kuhar