In the last article, we saw that in the hypothetical case presented, there was a significant Environmental-Social-Governance (ESG) benefit to automation of refining to freeness targets. Below are comparisons made in Seeq to show this difference in hourly energy use: We see that Freeness control
In prior articles, we stated the potential economic benefits of measurement and automation of freeness. However, to avoid hyperbolic estimates that overpromise and under-deliver, rigorous analytical techniques exist that can provide reasonable expectations of benefits. Some of those techniques are explained in the references at
In this Part 1 of our Automating Refining series, we discuss the benefits of measuring freeness. Measuring freeness is one of the mills’ most essential tools to assess stock preparation and paper machine operation. But the information from traditional freeness lab testing is unsuitable for
The approach to refining furnish in the stock preparation area of a paper mill has remained the same for decades. Paper machines churn out millions of tons of paper every year, but it is difficult for mill managers to know precisely what refiners in the
