GRADING CONTROL - NO PROBLEM

RAPID GRADING ANALYSIS FACILITIES AT MARBLEHEAD INCLUDE A MOST MODERN CRUSHING AND SCREENING PLANT, FOLLOWED BY TWO WASHING STATIONS FOR SMALL AND LARGE AGGREGATE, PREPARING SIZED FRACTIONS OF STONE. A COMPLEX SYSTEM OF BELT CONVEYORS IN TUNNELS BENEATH THE STOCK AREAS PERMITS THE LOADING OF COMPOSITE SIZED STONE OR THE BENDING OF SIZED FRACTIONS FOR CUSTOMER REQUIREMENTS. THE QUADRANT GATES AND THE VIBRATING FEEDERS BENEATH THE STOCK-PILES ARE ELECTRONICALLY CONTROLLED FROM A PANEL SO THAT, IN COMBINATION, ANY AMOUNT UP TO 2,500 TONS PER HOUR MAY BE FED TO THE BOAT LOADING DOCK.

• Corporate Authors:

  Pit and Quarry

  ,    
• Publication Date: 1967-6

Subject/Index Terms

• TRT Terms: Aggregate gradation; Control systems; Crushers; Electronic control; Screenings; Vibratory equipment
• Uncontrolled Terms: Feeders
• Old TRIS Terms: Grading (By size); Vibrating equipment
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00217558
• Record Type: Publication
• Report/Paper Numbers: 3 pp
• Files: TRIS
• Created Date: Jan 16 1994 12:00AM