Abstract: A method and apparatus for cleaning candles in a candle filter using a cleaning fluid that flows inside the candle from the side of the filtrate, whereby said fluid is pressed in an opposite direction to the direction of the filtrate from the inside to the outside, through said candles, by a gaseous medium subjected to an overpressure. Water is or can be used as an appropriate cleaning fluid and air is used as a gaseous medium. The prior art teaches nozzle-shaped contractions that are respectively disposed on the outlet end of the candles or deflectors arranged inside the candle at a distance from said contractions, whereby the in-flowing cleaning fluid is deflected towards all sides in the direction of the inner walls of the candles, are provided for distribution of said cleaning fluid.

Abstract: A method of operating a plant for filling containers by moving a liquid such as water through an apparatus with at least one portion for receiving the liquid before it is filtered and at least one portion for receiving the liquid after it is filtered, so that the liquid moves from at least an upper area of apparatus to lower area of the apparatus to be transferred to bottles or other containers.

Abstract: A filter arrangement has a filter vessel with an interior divided by a partition into a filtrate chamber and an unfiltered material chamber. The partition has through openings allowing passage of filtered liquid from the unfiltered material chamber into the filtrate chamber. Filter candles are connected to the through openings of the partition. Each filter candle has a filter pipe and a candle chamber surrounded by the filter pipe. A displacement member is arranged in the candle chamber and fills the space of the candle chamber partially. The displacement member has an exterior surface and the filter pipe has an inner surface, wherein between the exterior surface and the inner surface at least one flow channel is defined.

Abstract: A suction filter for the filtration of particulate matter from fluids has a housing with an inlet opening, a bottom cover, a filter plate lying over the bottom cover, and with a wiper-cutter capable of rotation over the filter plate. The wiper-cutter comprises arms which carry the filter cake into the middle of the filter plate where a central outlet opening is connected to an outlet line in the bottom cover. A valve closes off the outlet line. In the housing or in the outlet line is a vertically adjustable drill, which cuts a hole through the filter cake to permit the cake cut and carried inward by the wiper-cutter arms to fall into the outlet line.