IMPACT CRUSHING

LA TRITURACION POR IMPACTO

Details are given of the basic principles which led to the construction and use of a new impact crusher for hard rock. The operational costs of the machine are apportioned into partial costs and presented in the form of a mathematical model. The different methods adopted to reduce the cost of wear are described among others, the adequate distribution of crushing bars, the shape and spacing of impact devices by applying Ehrhardt formulae transformed into proportional ratios. Conclusions are drawn regarding the design of impact crushers for hard rock and their practical use. (TRRL)

• Corporate Authors:

  Rocas y Minerales

  Arturo Soria 166
  Madrid-33,   Spain 
• Authors:
  • SCHMIDT, H
  • MARTIN, M
• Publication Date: 1977-9

Language

• Spanish

Media Info

• Features: Figures; Tables;
• Pagination: p. 8-16
• Serial:
  • Rocas Y Minerales
  • Issue Number: 69
  • Publisher: Editorial Rocas y Minerales

Subject/Index Terms

• TRT Terms: Aggregates; Bars (Building materials); Building materials; Charts; Costs; Crushed rock; Crushers; Crushing; Design; Durability; Economic efficiency; Equipment; Hardness; Impacts; Mathematical models; Optimization; Shock (Mechanics); Specific surface; Speed; Time; Wear
• Uncontrolled Terms: Efficiency; Particle size distribution; Use
• Old TRIS Terms: Equipment cost; Optimum design; Rock crusher
• ITRD Terms: 4577: Aggregate; 3461: Bar; 6486: Chart; 224: Cost; 4173: Crushed stone; 5176: Crushing; 5910: Durability; 5911: Efficiency; 3674: Equipment; 5914: Hardness; 4555: Material (constr); 6473: Mathematical model; 6200: Particle size distribution; 5471: Shock; 5929: Specific surface; 5408: Speed; 5414: Time; 9084: Use; 5293: Wear
• Subject Areas: Design; Economics; Finance; Geotechnology; Highways; Vehicles and Equipment; I36: Aggregates;

Filing Info

• Accession Number: 00315276
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Jun 12 1981 12:00AM