Pit & Quarry, August 2017
PoRTAble PlAnTs other markets out West as expansion opportunities including Arizona California and Colorado One of the companys senior estimators was from Texas so Anderson Columbia sent him around the state to quote jobs Anderson Columbia first ventured into Laredo where the company secured a number of jobs The company targeted the San Antonio market next but the aggregate reserves available there are difficult to permit Johnson says Theyre also not necessarily of the best quality as clay becomes an issue many producers combat Anderson Columbia pressed forward knowing the hurdles though and it carved out a spot in New Braunfels But entry to the region required production to start slowly meaning Anderson Columbia must rely on some rather unique crushing and screening solutions from the outset Johnson and others worked closely with Kolberg Pioneer Inc KPI Johnson Crushers International JCI and Astec Mobile Screens to develop those solutions The plant ultimately designed for Anderson Columbia includes two identical portable 4250 horizontal shaft impactors that simplify parts stocking and maintenance Johnson says Also included in the system are two portable screening and washing plants each consisting of a 6 ft x 20 ft triple deck horizontal screen with high pressure spray bars to clean stone as well as a 5044 32T twin sand screw that features 32 ft long dual shafts with 44 in diameter flights The screws are fed at a rate of 1000 gpm to ensure the cleanliness of Anderson Columbias manufactured sand product In addition bearing and drive belt upgrades improve the plants performance Johnson says KPI JCI and Astec Mobile Screens coordinated with Anderson Columbia on a clarifier and supporting pumps and wet systems The plant cant quite run itself Johnson adds but it comes close with the latest programmable logic controller PLC automation in a weatherproof motor control center MCC thats equipped with a Siemens switchgear motion detecting smart wheels on conveyors and other electronic details They did the layouts the engineering all of the automation and put the equipment layout graphics on the control mclanahan com 16 PIT QUARRY August 2017 pitandquarry com
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