Wet clay adhesion to antistick coatings: Effects of binder type and surface roughness

Andrea Fasano, Liliana Madaleno, Svava Daviðsdóttir, Lars S. Jensen, Josep Palasi, Claus E. Weinell, Kim Dam-Johansen, Søren Kiil*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The handling of sticky raw material can cause problems during operation of process equipment in the cement production industry. These handling problems are generally observed when raw material (e.g. wet clay) sticks to machine walls and causes blockage of outlets. This leads to frequent production shutdowns and expensive cleaning operations. In this work, the effects of surface material and process parameters on the friction forces between wet clay and surface were investigated. Various surface materials and clay impact speeds were investigated.
The results demonstrate that not only the equipment surface material but also the surface roughness influences the observed frictional behavior. The ranking of the materials in terms of effective static friction coefficients fell in two groups with equal performance within the group: 1) Two Teflon-based coatings (Accofal 2G54 and Accolan LB), polished AISI 304 stainless steel, Matrox lining, and a polyurethane-based coating (best performing surfaces), 2) Mild steel, a silicone-based coating, and AISI 304 stainless steel (worst performing surfaces). However, the friction coefficients of the two groups only varied by a factor of two, suggesting that adhesion of wet clay to surfaces is difficult to avoid by the use of coatings.
Original languageEnglish
JournalJournal of Coatings Technology and Research
ISSN1547-0091
DOIs
Publication statusAccepted/In press - 2019

Keywords

  • Antistick coatings
  • Steel
  • Friction measurements
  • Wet clay
  • Cement industry

Cite this

@article{1deec51931d74971beda052389e51335,
title = "Wet clay adhesion to antistick coatings: Effects of binder type and surface roughness",
abstract = "The handling of sticky raw material can cause problems during operation of process equipment in the cement production industry. These handling problems are generally observed when raw material (e.g. wet clay) sticks to machine walls and causes blockage of outlets. This leads to frequent production shutdowns and expensive cleaning operations. In this work, the effects of surface material and process parameters on the friction forces between wet clay and surface were investigated. Various surface materials and clay impact speeds were investigated.The results demonstrate that not only the equipment surface material but also the surface roughness influences the observed frictional behavior. The ranking of the materials in terms of effective static friction coefficients fell in two groups with equal performance within the group: 1) Two Teflon-based coatings (Accofal 2G54 and Accolan LB), polished AISI 304 stainless steel, Matrox lining, and a polyurethane-based coating (best performing surfaces), 2) Mild steel, a silicone-based coating, and AISI 304 stainless steel (worst performing surfaces). However, the friction coefficients of the two groups only varied by a factor of two, suggesting that adhesion of wet clay to surfaces is difficult to avoid by the use of coatings.",
keywords = "Antistick coatings, Steel, Friction measurements, Wet clay, Cement industry",
author = "Andrea Fasano and Liliana Madaleno and Svava Davi{\dh}sd{\'o}ttir and Jensen, {Lars S.} and Josep Palasi and {E. Weinell}, Claus and Kim Dam-Johansen and S{\o}ren Kiil",
year = "2019",
doi = "10.1007/s11998-019-00240-3",
language = "English",
journal = "Journal of Coatings Technology and Research",
issn = "1547-0091",
publisher = "Springer New York",

}

Wet clay adhesion to antistick coatings: Effects of binder type and surface roughness. / Fasano, Andrea; Madaleno, Liliana ; Daviðsdóttir, Svava; Jensen, Lars S.; Palasi, Josep; E. Weinell, Claus; Dam-Johansen, Kim; Kiil, Søren.

In: Journal of Coatings Technology and Research, 2019.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Wet clay adhesion to antistick coatings: Effects of binder type and surface roughness

AU - Fasano, Andrea

AU - Madaleno, Liliana

AU - Daviðsdóttir, Svava

AU - Jensen, Lars S.

AU - Palasi, Josep

AU - E. Weinell, Claus

AU - Dam-Johansen, Kim

AU - Kiil, Søren

PY - 2019

Y1 - 2019

N2 - The handling of sticky raw material can cause problems during operation of process equipment in the cement production industry. These handling problems are generally observed when raw material (e.g. wet clay) sticks to machine walls and causes blockage of outlets. This leads to frequent production shutdowns and expensive cleaning operations. In this work, the effects of surface material and process parameters on the friction forces between wet clay and surface were investigated. Various surface materials and clay impact speeds were investigated.The results demonstrate that not only the equipment surface material but also the surface roughness influences the observed frictional behavior. The ranking of the materials in terms of effective static friction coefficients fell in two groups with equal performance within the group: 1) Two Teflon-based coatings (Accofal 2G54 and Accolan LB), polished AISI 304 stainless steel, Matrox lining, and a polyurethane-based coating (best performing surfaces), 2) Mild steel, a silicone-based coating, and AISI 304 stainless steel (worst performing surfaces). However, the friction coefficients of the two groups only varied by a factor of two, suggesting that adhesion of wet clay to surfaces is difficult to avoid by the use of coatings.

AB - The handling of sticky raw material can cause problems during operation of process equipment in the cement production industry. These handling problems are generally observed when raw material (e.g. wet clay) sticks to machine walls and causes blockage of outlets. This leads to frequent production shutdowns and expensive cleaning operations. In this work, the effects of surface material and process parameters on the friction forces between wet clay and surface were investigated. Various surface materials and clay impact speeds were investigated.The results demonstrate that not only the equipment surface material but also the surface roughness influences the observed frictional behavior. The ranking of the materials in terms of effective static friction coefficients fell in two groups with equal performance within the group: 1) Two Teflon-based coatings (Accofal 2G54 and Accolan LB), polished AISI 304 stainless steel, Matrox lining, and a polyurethane-based coating (best performing surfaces), 2) Mild steel, a silicone-based coating, and AISI 304 stainless steel (worst performing surfaces). However, the friction coefficients of the two groups only varied by a factor of two, suggesting that adhesion of wet clay to surfaces is difficult to avoid by the use of coatings.

KW - Antistick coatings

KW - Steel

KW - Friction measurements

KW - Wet clay

KW - Cement industry

U2 - 10.1007/s11998-019-00240-3

DO - 10.1007/s11998-019-00240-3

M3 - Journal article

JO - Journal of Coatings Technology and Research

JF - Journal of Coatings Technology and Research

SN - 1547-0091

ER -