Patent ID: 8574143
Filing Date: 2013-11-05
Classification: B04B,B08B

Abstract:
1. , A horizontal solid-bowl centrifuge comprising: a stationary housing defining an interior configured to be tightly sealed to maintain a positive pressure when a gas is introduced into the interior through a gas delivery pipe in fluid communication with the interior of the housing; a gas outlet and a liquid drain each in fluid communication with the interior of the housing and an exterior of the housing; a rotatable drum positioned within the interior of the housing and configured to rotate about a horizontal axis of rotation relative to the housing, said drum including a rear wall, a bowl rim wall opposite said rear wall and a cylindrical inner wall extending therebetween, said bowl rim wall extending inwardly from said cylindrical inner wall toward said horizontal axis of rotation and defining an opening directly opposite said rear wall, said walls defining therebetween a bowl for receiving a solid-liquid suspension; a plurality of cleaning-in-place jet nozzles positioned inside the drum, the plurality of jet nozzles being positioned offset from and above the horizontal axis of rotation, the plurality of jet nozzles being configured to spray cleaning liquid upwardly onto said rear wall, bowl rim wall and cylindrical inner wall of said drum, where the cleaning liquid is supplied to the jet nozzles through a pipe passing through an opening in the housing and where the opening is configured to maintain the positive pressure within the housing; and a tube extending through an opening in the housing, where the opening for the tube is configured to maintain the positive pressure within the housing and to allow rotation of the tube relative to the housing and within the drum, where the tube has an inlet opening positionable at a lowest point within the drum, the tube being adapted for removing the cleaning liquid and any solid layer formed from the solid-liquid suspension which has accumulated on the cylindrical inner wall.