Mechanization Speeds Limestone ProductionSerial Information: Civil Engineering—ASCE, 1978, Vol. 48, Issue 6, Pg. 117-118
Document Type: Feature article
Abstract: The Dravo Lime Company's limestone mine and processing facility was nominated for an Outstanding Civil Engineering Award because it is a well-planned and executed construction achievement. The facility, located in Maysville, Kentucky, is fully mechanized and automated. Coal-mining technology was adapted to limestone mining wherever feasible. Some examples are the use of load-haul-dump units for muck removal, extensive use of conveyors for rock transport underground and primary rock-crushers underground. Aboveground, the lime manufacturing facility is highly automated. The kilns (where lime is produced) utilize sophisticated close-loop control systems. The product, Thiosorbic lime, is new; it is used in the scrubbers of coal-burning electricity generating plants to remove sulfur from stack gases. It is more efficient than conventional lime and saves plants from 5 to 15% annually on lime purchases. A diagram and explanation of how the process works is included.
Subject Headings: Automation | Kentucky | Limestone | Mining
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