MINING TECHNOLOGY

Author: DIEGO ALVAREZ ISIDRO.
Year: 2004.
University: OVIEDO [www.uniovi.es].
Place of defense: E.T.S.INGENIEROS DE MINAS DE OVIEDO.
Place of preparation: E.T.S. INGENIEROS DE MINAS DE OVIEDO.

Summary: The importance of the movement of bulk solid increases every day at this time when the globalization of the means of supply of raw materials has become a fact. The normal movement of bulk with self-propelled heavy machinery is gradually replaced by systems of varying complexity based on conveyors which reported undoubted benefits: - Reduced energy costs. Generally based systems conveyors are operated directly by electric motors, highly efficient systems compared with the drives powered by engines of fossil fuels. Large possibilities for the control and management of bulk solids transported. - Potential for automation of processes which allow, as the technical instrumentation and programming tools evolve, a decline to near zero the number of operators needed in these systems. Operators direct become increasingly mere supervisors intelligent systems that make their own decisions. The design and operational requirements for such facilities, as they are widespread use, have become more demanding. The design of a park are increasingly taking into account design parameters usually barely considered, such as levels of installed power, simultaneity factors in the loads connected, sharing of the burden among each voltage level, screening levels voltage supply, location of electrical substations, possibilities for communication with external control systems, control of raw materials and stock management, safety in the operation, and so on. Proper selection of these and other factors will affect a decisive to the operation of the system. A correct design affect values: values of energy efficiency, personnel operating system, ability to implement programs newspaper or predictive maintenance guided by parameters independently registered by the system. The connection usual storage systems mineral networks is a power voltage levels that vary depending on obviously existing networks in the area. In small installations must adapt to these networks. In new installations larger can, however, consider the optimal values to be used, depending on: location and configuration of the elements of the system, the degree of simultaneity and operability and power levels expected Usually the designer is guided by guidelines adopted contractual requirements based on custom, not on parameters or technical studies. The aim is to provide a set of rules and recommendations that will enable design and optimal operation of a system of movement of bulk solids. These rules and recommendations will try to find the following methodology: study and simulation by creating programs and parameter calculation highly configurable verification of results through calculation programs already made, a commercial and checking results with direct data in field using network analyzers. As support for the work done, because of the theoretical and practical interest of this study for industrial development in the year 2000 was the same den 8 tro of 457 project called "Technology and management of granular materials" subsidized public announcement within the II Regional Plan Investigation of Asturias through Ficyt, which appeared as the Principal Investigator Thesis Director Prof. Dr. Javier Toraño Alvarez and another of the researchers from the participating companies (Duro Felguera SA) Mining engineer Isidro Diego Alvarez.