Abstract: An improved trommel assembly (1) for screening different particles, comprising a plurality of modular units (2) detachably attached to one another, each modular unit having a flange (3) adapted to firmly attach with one or more corresponding flanges (3) of one or more corresponding modular units (2).

Abstract: The trommel assembly (1) with a spiral assembly having a decaying spiral pitch (3) comprises rotating drum structure with the decaying spiral assembly (2) and screen panels (6) made of polymeric material or rubber compounds. The pitch (3) is at a maximum at the inlet and at a minimum at the outlet providing increased screening efficiency. Maximum pitch produces low media height with increased inlet velocity and minimum pitch increases media height. The spiral (2) is of single start, double start or multi start configuration. The pitch (3) decreases along the trommel such that screening efficiency is improved without affecting the retention time.

Abstract: A fixing arrangement (10) for a screen panel comprising at least a screen panel(11) having side edges/side faces(4,7) on either side. The panel is adapted to be fixed to an adapter bar(1) and said bar(1) is adapted to be mounted on a screen deck frame. This bar(1) extends horizontally over said screen deck frame and between side edge regions of a pair of said screen panels(11), said adapter bar has at least a female portion in the form of a fixing groove (5) on its top surface(21) such that said groove(5) has an internal profile that exactly matches the outer profile of the bottom part(3) of said screen panel(11) for receiving said bottom part(3) securedly and snap fitting therewith and said adapter bar(1) is fixed on a portion(2) of said screen deck frame by suitable fixing means.

Abstract: A fixing arrangement (10) for a screen panel comprising at least a screen panel(11) having side edges/side faces(4,7) on either side. The panel is adapted to be fixed to an adapter bar(1) and said bar(1) is adapted to be mounted on a screen deck frame. This bar(1) extends horizontally over said screen deck frame and between side edge regions of a pair of said screen panels(11), said adapter bar has at least a female portion in the form of a fixing groove (5) on its top surface(21) such that said groove(5) has an internal profile that exactly matches the outer profile of the bottom part(3) of said screen panel(11) for receiving said bottom part(3) securedly and snap fitting therewith and said adapter bar(1) is fixed on a portion(2) of said screen deck frame by suitable fixing means.

Abstract: An improved trommel assembly(1) for screening different particles, comprising a plurality of modular units(2) detachably attached to one another, each modular unit having a flange(3) adapted to firmly attach with one or more corresponding flanges(3) of one or more corresponding modular units(2).

Abstract: There is provided an improved screening device (A) comprising a screen panel with projections/rider bars (4) along the longitudinal direction of the top surface, (4B) said projections/rider bars being continuous or discreet and held to the base by bonding sliding or push fitting and provided between the adjacent screen openings apertures FIG. 2).