Benefits of filter presses with artificial intelligence (AI) support in the chemical and mining industries

A. Decker*, ANDRITZ Separation GmbH, Germany

In the chemical and mining industries, efficient filtration is a key process step in achieving high product quality. One of the most common products used for filtration is the filter press, which has gone through a lot of changes over the decades. One of the latest innovations in filter press development is the move towards Industry 4.0 and the Industrial Internet of Things (IIoT) as well as Artificial Intelligence (AI). The ANDRITZ technology group has combined findings gathered from IIoT with automation solutions for the filter press, creating new mechanisms and features that promise an increase in product quality and a decrease in operating costs as a result of process optimization.

Intelligent filter press features include solutions to increase efficiency, reduce downtime, and also enhance safety and monitoring functions. The key distinguishing functions of intelligent filter presses are monitoring of dry substance, intelligent washing cycles, monitoring of oil and filtrate quality, and intelligent pressure control.

Two of these solutions use a Smart Sensor inside the filter press that monitors the press and constantly compares the values reported with the nominal values so that the filter press can be stopped automatically if there are deviations from the norm. This provides an opportunity to increase efficiency, for example by suggesting an automatic washing cycle to keep the quality of the end product at a constant, high level. And it also improves safety by stopping the filter press in case of a pressure loss. This feature increases operating safety enormously. In addition, the oil levels and oil quality are measured constantly, ensuring continuing smooth operation and reducing OPEX costs by avoiding unnecessary oil changes.

Another central function of the intelligent filter press that increases efficiency is the monitoring of dry substance with Smart Sensors inside the filter press during the process. This enables the operator to stop filtration at the right time and reduce fluctuations in the cake moisture content. The intelligent filter press is often combined with intelligent filter elements, such as the LENSER intelligent filter plate and the Metris addIQ SmartFILTERCLOTH, to increase its usability. The SmartFILTERCLOTH is a filter cloth tagged with an RFID chip to help monitor use and suggest replacing a filter cloth at the right time, thus ensuring ideal filter cloth service.

The intelligent filter press and its features will be explained in this lecture, and two cases will be presented showcasing the use of an intelligent filter press and the benefits of its intelligent features in two plants, one in the chemical and one in the mining industry...

Session: L14 - Cake Filtration - Enhancement of Filter Presses
Day: 24 October 2019
Time: 10:45 - 12:00 h

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