Design and IoT-Based Monitoring of Salt Refining and Stirring Machine Using SUS 316L Material

Abstract

The salt industry faces declining sales due to the lack of automated processing machines, affecting efficiency and market readiness. This study develops a salt refining and stirring machine using SUS 316L, known for its durability and hygienic properties. The machine, with a maximum rolling speed of 3800 rpm, refines salt to a smoothness level of 50-100%, depending on the roller gap density. Testing shows that refining 1 kg of salt with a 1 mm roller density takes 6.01 minutes (5mm gap), 1.13 minutes (10mm gap), 0.1 minutes (15mm gap), and 0.07 minutes (20mm gap). For a 1.5 mm roller density, times reduce to 5.2, 0.95, 0.08, and 0.04 minutes, respectively. The integration of IoT-based monitoring with ThingSpeak enhances efficiency through real-time voltage and current tracking, predictive maintenance, and remote monitoring, reducing downtime and optimizing performance.