AB MATAKI, SWEDEN, GOES "ALL RUBBER"

LOCAL ROCK IN SWEDEN IS A CAMBRIAN SANDSTONE WITH A VERY HIGH QUARTZ CONTENT. THE CRUSHING OF THIS ROCK CREATES TINY PARTICLES OF QUARTZ THAT ARE INVISIBLE AND REMAIN SUSPENDED IN THE AIR FOR SEVERAL DAYS. WORKERS' SUSCEPTIBILITY TO SILICOSIS MADE DUST SUPPRESSION AN ESSENTIAL FACTOR IN THE OPERATION. IN 1964 IT BECAME LAW IN SWEDEN THAT ALL WORKERS EXPOSED TO AN ENVIRONMENT WITH ANY DANGER OF SILICOSIS MUST WEAR RESPIRATORS AT ALL TIMES. A RESEARCH AND DESIGN TEAM WAS ESTABLISHED TO DESIGN A FULLY-AUTOMATIC PLANT THAT WOULD BE DUST FREE. WORK IS NOW CONDUCTED WITHOUT RESPIRATORS. RUBBER IS USED FOR TRUCK LININGS, AND LININGS OF ALL CHUTES AND HOPPERS IN THE CRUSHING PLANT. ALL CONVEYORS ARE OF THE NEW DESIGN OF MEDIUM-COARSE BELTING WITH A SYNTHETIC INLAY. THERE ARE TWO CORD INLAYS EMBEDDED IN A POLYESTER/POLYAMIDE MATRIX. COVERS ARE RUBBER, AND THERE IS A STIFFENING LAYER OF HEABY-DUTY FIBER-REINFORCED RUBBER BETWEEN THE INLAYS TO GIVE THE BELT BODY. AFTER CRUSHING, SCREENS OF A SPECIAL FRACTIONS FOR STORAGE IN APPROPRIATE HOPPERS. RUBBER SCREEN CLOTHS ARE USED THROUGHOUT THE PLANT.

• Supplemental Notes:
  • Vol 73, No 3, PP 90-93
• Authors:
  • Ironman, R
• Publication Date: 1970-3

Media Info

• Serial:
  • Rock Products
  • Publisher: Maclean-Hunter Publishing Company

Subject/Index Terms

• TRT Terms: Belt conveyors; Crushing; Dust control; Occupational diseases; Quartz; Rubber; Sandstones; Screens; Synthetic rubber
• Old TRIS Terms: Liners; Respirators; Silicosis
• Subject Areas: Geotechnology; Highways; Maintenance and Preservation; Safety and Human Factors;

Filing Info

• Accession Number: 00217807
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 1 1970 12:00AM