Implementation of pH Controller in Tissue Machine Production

Advance control technique in industrial application for the process industries are more demanding due to process itself and it is required to it, most of advance control its impact to effectiveness of machine production and increasing significant on product quality. One of the most important parts in process of tissue machine is a water neutralization, which is two different paper material mixing in the tank between tropical hard wood paper and softwood paper into one process medium then later adding chemical solution H2SO4 for breaking and homogenous purposes, those two papers are most popular it’s called as Fibre. It’s creating of pH water value then increasing pH itself, due to this condition controlling pH number is significantly needed. In this process water neutralization also, there is an uncertain condition, which is contains chemical coating and chemical bond caused pH is significantly increased. The objective of the thesis work is to implement of pH water controlled by replacing the manual system mode to automatic system by using PID controller. In this case dosing chemical pump is used to supply the chemical solution for decreasing the pH indication, afterward we analysed result to conclude which better for precisely controlling the pH neutralization water. Outcomes from MATLAB Simulink of PID controller logic toolbox for simulation of our schematic has been provided in this thesis work. From its simulation result of PID controller of pH measurements it can be obtained the percentage overshoot, rising time of the output signal and minimize the error.