Pit & Quarry, May 2016
Rockydale Quarries personnel Luis Lopez left and Ray St Clair played key roles in the air classifiers refurbishing and reinstallation trouble keeping up with that production rate The feed material is dolomitic limestone with 4 percent silica and no caustic chemicals which keeps wear to a minimum Hubbard says Acceptable moisture content averages 2 to 5 percent Anything higher slows production The two air classifiers are fed a fine graded material and produce very high quality sand To aid in moisture control the 12 ft air classifier is enclosed and the 16 ft has a covered feed conveyor In regard to the air classifiers Hubbard says We do a weekly inspection just open up the door to see how the blades tips and distributor plate look Theres virtually never a problem so we close up and keep on producing Once the selector blades are dialed in to match the gradation you want the upkeep on the unit is very simple CARIng foR The CommUnITY Rockydale Quarries has a long standing history of commitment to the communities it serves Since 1932 the company has donated time money and material to surrounding communities In recent years Rockydale has made charitable donations to nearly 100 organizations During the Christmas season Rockydale contributes to local food banks in honor of its customers and vendors The company also cares for the environment Before establishing a new plant site or expanding an existing site Rockydale management works with local planning boards and agencies to conduct thorough site evaluations and address environmental concerns P Q Carl Emigh of CME Creative Services Inc is a freelance writer and communications specialist serving the aggregates recycling and construction industries Additional information courtesy of Rockydale Quarries Corp co p ource DRILLING ro i DRILLING TOOLS UNDERGROUND Brunner Lay ÒQuality FirstÓ since 1882 Your for Whether you are drilling thru a mountain or a mole hill weve got a durable dependable solution for you If you need tools for construction mining or demolition were the only name you need to know Call 800 872 6899 or visit BrunnerLay com pitandquarry com May 2016 PIT QUARRY 25
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