Pixact provides online measurement solutions for industrial particle, droplet and bubble analysis. Our measurement systems are developed for the challenging conditions of industrial applications, involving dark and dense suspensions, varying particle morphologies and high flow rates.
The measurements are typically conducted in real process conditions: in pipelines, reactors, tanks and other process equipment. However, our measurement systems can also be equipped with sampling and dilution units.
Some of our solutions for industrial applications are presented in detail below. For a further description of the Pixact technology, please refer to the Technology section.
The agglomeration of solid particles may occur either as an accurately controlled process or as an undesired spontaneous phenomenon due to non-optimal process conditions. In both cases, the real-time analysis of agglomeration provides a valuable tool for optimizing the process and avoiding potential disturbances. For example in flocculation, fast and efficient agglomeration with a minimum dosage of the chemical agglomeration agent is desirable.
The Pixact Agglomeration Monitoring system is designed for the online measurement of agglomerate concentration, size distribution and morphology in industrial processes. The online diagnostics and real-time control of agglomeration provides the means for optimizing, for example, the consumption of chemicals and the separation efficiency in flocculation.
Bubble and foam analysis
Bubbly flows and foams are present in a multitude of industrial processes, including flotation, foam-laid forming, aeration and other dissolution processes. Bubble size distribution is one of the major process parameters controlled for the optimal energy efficiency, homogeneity and stability of the process.
Online tools measuring the bubble size distribution are needed to optimize for example the homogeneity of the end product and the energy consumption of the process. The Pixact Bubble Monitoring system is designed for the online measurement of bubble size distribution and gas concentration.
Crystallization is a separation and purification process used widely in the chemical, pharmaceutical and food industries. In the crystallization process, a substance is separated from a solution by converting it into a solid and filtering the mixture. The efficiency and yield of the process is determined by the crystal-forming characteristics of the substance. The final size and morphology (i.e. agglomeration, aspect ratio and other measures of shape) of the crystals are important for the recovery process, as narrow crystal size distribution supports efficient filtration.
The Pixact Crystallization Monitoring technology is designed for the online measurement of crystallization processes. The online analysis and real-time control of the crystallization process provide highly desired possibilities for optimizing crystal growth and the final crystal size distribution.
Beads and granules are typical end and intermediate products in the chemical, food and pharmaceutical industries. Granule size distribution is, for example, highly important in the transport and further processing of materials.
The Pixact Bead Monitoring system is designed for the online measurement of particle size and color in industrial processes. The online analysis of the bead size distribution enables the making of fast changes to the process recipe and the accurate control of the process from batch to batch. The color measurement can be used to control for example the coating phase.
Particle-laden flows are common in many branches of the process industry. Whether the particles are impurities in the raw material or the outcome of the synthesis in the process, their online analysis plays a vital role in the control and optimization of processes.
The Pixact Particle Monitoring technology is designed for online particle analysis. The system is able to measure crucial features of the particle population, including the size distribution and morphology (roundness, coarseness and fragmentation) of the particles. If the size of the particles exceeds 50 µm, their color can also be measured.
The information on the size, morphology and color of the particles can be used to classify them. A typical example is the separation of gas bubbles from solid particles. Other examples include the separation of fibrous particles from compact ones and crystals from more irregular precipitated components.
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