Patent ID: 6500339
Filing Date: 2002-12-31
Classification: B01D

Abstract:
A filtration apparatus for filtering and regenerating a machining fluid, used for a machining process with a machine tool, the machining fluid containing particles generated during the machining process, the filtration apparatus comprising:a dirty tank for receiving the machining fluid; a clean tank fluidly connected to the dirty tank; filter means, provided between the dirty and the clean tank, for filtering the machining fluid which flows from the dirty tank into the clean tank; conveyer means, provided in the dirty tank, for conveying a sediment of particles separated from the machining fluid in the dirty tank; collection means for receiving the particles from the conveyer means; and a filter cleaning device for cleaning the filter means, the filter cleaning device including a nozzle bar a plurality of nozzle bars, provided in the clean tank for rotation within a plane parallel to the filter means, for directing the machining fluid in the clean tank onto the filter means to blow the particles off the filter means into the dirty tank, the nozzle bars being alternatively positioned with phase difference of 90 degrees relative to the adjacent nozzle bars.