Screen cylinder with high percent open area

Details Screen cylinder with high percent open area Screen cylinder with high percent open area

B - Operations, Transporting

07

B

B07B 1/49 (2006.01) B07B 1/18 (2006.01) B07B 1/46 (2006.01) B23K 26/36 (2006.01) D21D 5/16 (2006.01)

Patent

CA 2322044

Screen cylinder (10) and method of making same are disclosed wherein the desired inlet (29) and oulet (31) side contours for the screen are formed in respective sides of a precursor metal plate (40) or the like. The contours may comprise a series of grooves (46) formed along respective top (42) and bottom (44) sides of the plate (40). The grooves (46) do not extend through the plate (40) but are in substantial superposition to each other from one plate side to the other. The plate (40) is formed into the desired shape and slots (62) cut in the plate (40) to effect communication between the inlet and outlet contours with the slots (62) functioning as filtering media.

L'invention porte sur un cylindre (10) épurateur et sur son procédé de fabrication. Les contours latéraux de l'orifice d'admission (29) et de l'orifice d'évacuation (31) souhaités de l'épurateur sont formés dans les côtés respectifs d'une plaque (40) métallique précurseur ou analogue. Les contours peuvent comporter une série de rainures (46) formées le long des côtés supérieur (42) et inférieur (44) de la plaque. Les rainures (46) ne traversent pas la plaque, mais sont pratiquement superposées d'un côté à l'autre de la plaque. On donne à la plaque (40) une forme désirée, et des fentes (62) sont découpées dans la plaque (40) de façon à faire communiquer les contours de l'orifice d'admission et de l'orifice d'évacuation par les fentes (62) qui agissent comme des milieux de filtration.

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