Influence of the filter cloth and nozzles type on the in-situ cleaning procedure of filter presses

Morsch, Patrick; Kühn, Jérome; Werner, Rüdiger; Anlauf, Harald; Geier, Dominik; Becker, Thomas; Nirschl, Hermann

doi:10.1016/j.ces.2020.115889

Cited by 5 publications

(9 citation statements)

References 14 publications

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“…This example shows that the choice of filter medium at 10 9 m −1 (0.1 m 3 • m −2 • s −1 ; for example (∆p = 10 5 Pa: η f = 10 −3 ), Pas the 6 µm metal-based plain fabric, instead of the 6 µm polymer-based satin fabric) can significantly improve the hydraulic load. Effects on subsequent regeneration steps also depend on fabric type and mesh size [21,22].…”

Section: Discussionmentioning

confidence: 99%

Interaction of Particles and Filter Fabric in Ultrafine Filtration

Bächle

Morsch

Fränkle

et al. 2021

Eng

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Filter fabrics are frequently used in the separation of particle-laden process streams. Especially for low-concentration and fine particles in the micrometer range, separation on filter fabrics offers considerable advantages over alternative processes. In this process, the inflowing particles are prevented from flowing through the meshes of the fabric. This interaction results in the initial resistance of the filtration not corresponding to the pure water resistance of the filter fabric. Knowledge of this increase in resistance is rare, but it leads to a significant increase in flow resistance, and thus a strong reduction in the hydraulic load on the filter apparatus. Within the scope of this investigation, measurements for 30 filter fabrics and their interaction with 3 particle systems is presented and their effect on the flow behavior is discussed. The knowledge allows an improved design of filter apparatus by correcting the pure water resistance to the resistance with particle interaction and improve the performance of ultra-fine filtration process.

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Section: Discussionmentioning

confidence: 99%

Interaction of Particles and Filter Fabric in Ultrafine Filtration

Bächle

Morsch

Fränkle

et al. 2021

Eng

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“…Necessary cleaning parameters of wash jet cleaning for model and food‐related contaminations were studied by Morsch et al. 13, 14. Other publications focused on alternative cleaning procedures like pulsatile jet cleaning 15–18.…”

Section: Introductionmentioning

confidence: 99%

Jet Cleaning of Filter Cloths Used in Solid‐Liquid Separation: A High‐Speed Video Evaluation

et al. 2023

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Cleaning avoids cross‐contamination and sustains production safety and efficiency. While there have been discoveries for technical surfaces, data on activities for filter cloth are still in the early stages. In the food industry, there is a lack of knowledge and innovative ideas on how to clean cloths efficiently. This study combined high‐speed recordings with cleaning experiments. Cleaning of eleven filters was captured, enabling time‐resolved analysis of the cleaning degree, the cleaning homogeneity, and insights into the mechanisms. The findings divide cloth cleaning into three phases, each significantly influenced by the properties of the cloth. Exemplarily, close‐mesh cloths have smoother surfaces that facilitate cleaning. Coarse structures with flow channels on the cloth surface can complicate cleaning.

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“…The W number can also help up-scaling small-scale experiments to a technical scale. First experimental trials focussed on spent grains-loaded cloths were recently published by Morsch et al, (2020Morsch et al, ( ), (2021.…”

Section: Introductionmentioning

confidence: 99%

Pulsed forward flushes as a novel method for cleaning spent grains‐loaded filter cloth

Werner

Lukas

Geier

et al. 2022

Int J of Food Sci Tech

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Summary This paper presents a novel method to remove spent grains efficiently from filter cloths via pulsed forward flushes. In breweries, mash filters separate liquid wort from solid spent grains, a by‐product. These mash filters use woven fabrics made from synthetic materials as filter media. However, rough filter surfaces often hinder the cleaning process. Concerning modern hygienic design principles, filter cloths are only designed for efficient filtration performances, in which cleanability is not considered. Hence, in combination with strongly adhesive spent grains, brewers often reject mash filters. The paper illustrates an experimental parameter variation and a comparison of pulsed with continuous cleaning in respect to their cleaning performance. The results showed that the proposed method is suitable, reaching up to 30% higher cleaning degrees than conventional methods. Furthermore, the technique required up to 50% fewer cleaning fluids and shorter cleaning times, indicating economic and ecological advantages.

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Influence of the filter cloth and nozzles type on the in-situ cleaning procedure of filter presses

Cited by 5 publications

References 14 publications

Interaction of Particles and Filter Fabric in Ultrafine Filtration

Interaction of Particles and Filter Fabric in Ultrafine Filtration

Jet Cleaning of Filter Cloths Used in Solid‐Liquid Separation: A High‐Speed Video Evaluation

Pulsed forward flushes as a novel method for cleaning spent grains‐loaded filter cloth

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