Planta piloto de obtención de metales preciosos del laboratorio de mineralogía de la facultad de ciencias

Abstract

This technical project consisted of designing and building a crusher for the reduction of minerals according to ASTM standards. The crushing design was carried out by selecting the ore itself that met the requirements for the design, the study ore was subjected to an analysis with a scanning electron microscope where the presence of quartz (SIO2) with a density of 2.5 g/ml, a hardness of 7 on the Mohs scale and a hooked irregular fracture was obtained. Achieved the identification of the mineral, the reduction ratio, the feed width, jaw length, as well as the displacement of the mobile plate were calculated with the purpose of reducing the size of the mineral in nine times, as for the design of the structure of the crusher, it was made by means of profiles and the required dimensions of the material, the clamping angle of 19° and a friction angle of 30° were taken into account, a safety factor of 2 was considered, in addition a reduction mechanism was implemented. The materials for the manufacture of the crusher were selected based on the availability and economic feasibility existing in the market and according to the required design parameters. The respective construction of the crusher was carried out in a workshop following the corresponding steps in the construction and assembly procedure, the electrical control and power circuit was placed in a control panel. Finally, operating tests were carried out to characterize the parameters such as crushing time and output ore production. It is recommended to carry out training before starting with the operation of the crushing equipment.