Propuesta de diseño para los homogeneizadores en las marmitas de elaboración para salsas con tomate y frutas, en la planta de producción de productos el tomatico S.A.S.

Abstract

This document shows the stages of the design of a proposal to replace the equipment for mixing and blending ingredients in the production of tomato and fruit sauces in the production plant of the company PRODUCTOS EL TOMATICO S.A.S. belonging to the national food industry, located in the city of Bogotá. Due to the growth of the company, it found it necessary to acquire machinery of increasing capacity, forcing it to look for supplies in the interior and exterior of the country. One of the most important processes, and of greatest demand in production, is the homogenization of raw materials in the manufacture of sauces. The homogenization process currently presents a high rate of failures due to design errors whose correction is the objective main of the present project. Originally, the high rate of certain failures allowed evidence of defects in the initial design, however, the analysis of fluid mechanics and machine design allowed us to observe another series of defects with other types of consequences such as the low efficiency of the process. The starting point was the maintenance reports with which motor failures were observed, with a high frequency of winding failures. Beyond the single cause, the engine failure had consequences of very long maintenance times due to the monolithic structure of the mixer structure, which made it necessary to disassemble the entire mixer at each maintenance. The second failure was associated with blade failure, normal wear due to use, but with the same consequences in terms of maintenance times, also due to the monolithic structure of the homogenizer. The third most important failure was bearing damage in the electric motor. For the first failure, it was observed that the start of the homogenization process brought amperage increases of up to 400%, so that the motor failure was directly associated with it, its solution was addressed by implementing a drive for the transition between the state of rest and working status. The second fault was addressed by choosing a suitable propeller for the working conditions based on specialized literature and the third fault was solved with a coupling with vibration absorption capacity. In terms of lost time, the main cause, beyond the specific failures, was due to the monolithic structure of the homogenizer, a situation that was addressed by changing the welded joints for removable joints in the structure, which forced a specific analysis of each critical point of the designed shaft.