ARRANGEMENT AND METHOD FOR CLEANING AND RECLAIMING BALLAST MATERIAL, SPECIFICALLY CONCRETE BALLAST MATERIAL, AND A WATER INJECTOR STRUCTURED FOR CLEANING

摘要

Arrangement and method for washing and fractionation of ballast material for reclaiming purposes, comprising the steps of spraying pressurized water and fractionation by means of one or several screens from where separated material is fed out by means of one or several conveyors. The invention foresees the provision of a high pressure section for washing the material that is transported on the screen/screens with water at a pressure in the range of about 30-60 bar; means for dewatering and feeding out finer particles from the process water; thanks for saving and agitating the process water both for a) re-circulation of process water for cleaning the rotary drum of a cement truck, and b) for recovery of process water in the cement production after analysis of the slurry or detection of the solid content.