Modelling an inverted belt filter

Abstract

This project report describes the attempts to model the adhesive forces relevant to the manufacture of products such as fibre cement board. As they are made with an inverted belt filter, the mixture must adhere to the underside for a considerable time for the manufacturing process to work. Fluid mechanical, chemical and physical mechanisms were all considered by the MISG team working on this problem during the week long study group. Although it was impossible to determine the mechanism involved, the MISG team were able to make a number of observations and suggestions for further study. Specifically, the moisture content of the fibre and paste ensemble needs to be carefully monitored during the manufacturing process and a statistical study of the process needs to be undertaken, including drop off times.