FILTER Russian patent published in 1997 - IPC

FIELD: industrial filters. SUBSTANCE: filter has casing with inlet and outlet fittings for gas; lower distributive and upper grates, integrate space filled with a grainy material; upper distributive arrangement through which grainy material is charged into casing; and lower gathering arrangement through which grainy material is removed. The two arrangements are made in such a way as to provide grainy filtering material to be uniformly distributed across filter section and to uniformly move from upper filter part to the lower one. Velocity of grainy material displacement is controlled by means of a mobile cone. EFFECT: improved design. 3 dwg