Abstract
This article describes the use of electroosmosis to reduce wall friction in a screw press. The aim was to reduce the water content within the pressed material and thereby save drying energy or decrease the power consumption of the press while maintaining the same extrusion rate. To investigate and quantify the effect of electroosmosis, a piston press with core die and an adjustable electrode mechanism was constructed. Clays from various brick manufacturers were used as testing materials. For all clays a reduction in extrusion force was observed, with plastic roof tile clays showing slightly better results than less plastic shale clays. Anode corrosion and high construction effort for huge presses are problems for practical deployment of this process.
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Stern, O.: Zur Theorie der elektrischen Doppelschicht. Zeitschrift für Elektrochemie und angewandte physikalische Chemie 30 (1924) 508–516
Vane, L.M., Zang, G.M.: Effect of aqueous phase properties on clay particle zeta potential and electroosmotic permeability: Implications for electrokinetic soil remediation processes. Electrochemical Decontamination of Soil and Water 55 (1997) [1–3] 1–22
Rodríguez, K., Araujo, M.: Temperature and pressure effects on zeta potential values of reservoir minerals. J. of Colloid and Interface Sci. 300 (2006) [2] 788–794
Lockhart, N.C.: Electroosmotic dewatering of clays. I. Influence of voltage. Colloids and Surfaces 6 (1983) [3] 229–238
Lockhart, N.C.: Electroosmotic dewatering of clays. II. Influence of salt, acid and flocculants. Colloids and Surfaces 6 (1983) [3] 239–251
Lockhart, N.C.: Electroosmotic dewatering of clays, III. Influence of clay type, exchangeable cations, and electrode materials. Colloids and Surfaces 6 (1983) [3] 253–269
Fourie, A.B., Johns, D.G., Jones, C. FPJ: Dewatering of mine tailings using electrokinetic geosynthetics. Canadian Geotechnical Journal 44 (2007) [2] 160–172
Lee, MyungHo: Electrically induced settling and consolidation behaviour of soft soil. KSCE Journal of Civil Engineering 11 (2007) [4] 185–191
Lo, K.Y., Micic, S.Y., Shang, J.Q., Lee, Y.N., Lee, S.W.: Electrokinetic strengthening of a soft marine sediment. International journal of offshore and polar engineering 10 (2000) [2] 137–144
Micic, S., Shang, J.Q., Lo, K.Y., Lee, Y.N., Lee, S.W.: Electrokinetic strengthening of a marine sediment using intermittent current. Can. Geotech. J. 38 (2001) [2] 287–302
Reddy, K.R., Shirani, A.B.: Electrokinetic remediation of metal contaminated glacial tills. Geotechnical & Geological Engineering 15 (1997) [1] 3–29
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Winkel, A. Reduction of Extrusion Wall Friction in a Screw Press by Electroosmosis, Part 1. Interceram. - Int. Ceram. Rev. 63, 202–206 (2014). https://doi.org/10.1007/BF03401059
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DOI: https://doi.org/10.1007/BF03401059