Implementación de un sistema automatizado para la etapa de ribera-curtido de pieles en el Laboratorio de Curtiembre de la Facultad de Ciencias Pecuarias.

Abstract

An automatized system was implemented for the stage of Beamhouse-Tanning of leathers in the tannery lab of the College of Animal Sciences. The processes that are made in the stage of Beamhouse –Tanning were analyzed, taking into account the needs of the users, due to the system was found with some shortfalls giving as a result the damage of the equipment because of misuse that produce pecuniary loss and work accidents. For the automatization of the system, the state and functioning of the equipment used in the stage. The analysis, dimensioning and election of the new equipment to be used were made, the outlines for the mounting of the equipment in the control cabinet, and the electric scheme were designed. For the handling speed, a frequency shifter was installed to establish new speeds and a Man Machine Interface (MMI) with a protocol of communication Modbus between the MMI and the frequency shifter for the controlling, tracking and visualization of the processes where the user will account with 2 options to make the leather tanning: the first is the manual option, in which the time will be able to be programmed and choose the rpm (revolution per minute) that needs in case of being leathers or recipes that have not been worked in the lab previously, and the other option is the automatic, where the recipes can be chosen with which the lab works commonly. A comparative census of charges before and after the automatization was made getting as result an energetic efficiency of 36% with the new implemented system. Thanks to the implementing of the frequency shifter, the current peaks of the previous system were dropped absolutely and the total time that requires the process was reduced in a 9.8%. It is recommended to use the manuals for a correct handling of the system and for its adequate maintenance.