Foaming problems in a tunnel wash machine (IM-CRE-007)

1. INTRODUCTION 1.1 A large tunnel wash plant (CERA plant) for bogies, wheel sets, etc.was set up in B.R.E.L. Crewe to replace three other cleaning plants. In contrast to the redundant plants, all soiling material is retained in the new plant and soon after commissioning problems with excessive foam...