Tối ưu hóa các thông số làm việc của máy cạo lông heo trong các dây chuyền giết mổ heo

Abstract

The study aimed to determine necessary optimum parameters for effective and high-quality operation of pig’s dehairing machine, especially to reduce the work load in the condition of post-scalding, where the pig’s temperature is still high, causing difficulties in dehairing and to ensure the lowest amount of hair left after dehairing with the machine. The dehairing machine was built based on calculations and designs adapted from other countries’ dehairing machine’s specifications. Preliminary experiments resulted in input parameters including the number of scraping rollers’ revolutions, tilt angle of auxiliary bar, dehairing time, with output parameter being the percentage of hair left on pig’s skin. The study was conducted at Cattle slaughtering center, Tan Tao ward, Binh Tan district, Ho Chi Minh city. The method of study was quadratic experimental design and Box-Behnken. Optimization was solved by Matlab software. Results showed that the optimum lowest percentage of hair left was Q = 3.85%, corresponding to the velocity of scraping rollers being v = 3.7%, tilt angle of auxiliary bar being α = 120° and dehairing time being t = 56.14 s.