ACE Control Systems (bleaching

ANDRITZ Bleaching ACE is a control optimization system powered by BrainWave that stabilizes brightness and pH to improve the efficiency of bleach plants.

ACE starts by closing loops and stabilizing operations with the patented BrainWave controller. After BrainWave has stabilized the process, ACE is then added as a supervisory layer. It further stabilizes and optimizes process control, and thus minimizes the chemical consumption and improves the bleached pulp quality. ACE performance analyzers automatically select the optimal “bleaching recipe”. ACE calculates the optimal sequence of brightness target values for each bleaching stage, depending on incoming kappa and based on the historical results of the bleach plant’s operation. During various operating conditions, ACE records data such as chemical consumption in relation to measured kappa and the resulting brightness increase.