Abstract: An Archimedes screw plant for separating slurry includes a tubular sifting device; a slurry feeding device; a device for evacuating the liquid fraction; and a device for evacuating the substantially dry separated solid. The device includes an upper compaction chamber of the separated solid where a solid plug of product is formed. In addition, the tubular sifting device has an upper opening being provided with an auxiliary contrast element for forming the solid plug of product.

Abstract: A loading apparatus of a silo includes a pneumatic filling circuit connecting the silo to a tanker for transporting a granular or powdery material and a filtering device suitable to filter the compressed transport gas coming out of the silo. A recovery device of at least part of the energy contained in the compressed transport gas of the granular or powdery material is arranged between the tanker and the silo.

Abstract: An apparatus and related method for the recovery and the pneumatic transportation of dust coming from a filtration system provided with a particulate collection hopper. The apparatus comprises: an intermediate chamber for the passage of the particulate towards the evacuation means; and shutting means for a bottom opening (AP1) of said hopper. The apparatus is characterized in that the shutting means comprise, in turn, a shutter moved according to an arrow (ARW) by the action of intermittent pressurized air that flows in a control conduit forming part of said shutting means. Furthermore, the evacuation means comprise elements, specifically a nozzle aligned with a Venturi, to produce a pressure drop in the intermediate chamber.

Abstract: An Archimedes screw plant for separating slurry includes a tubular sifting device; a slurry feeding device; a device for evacuating the liquid fraction; and a device for evacuating the substantially dry separated solid. The device includes an upper compaction chamber of the separated solid where a solid plug of product is formed. In addition, the tubular sifting device has an upper opening being provided with an auxiliary contrast element for forming said solid plug of product.

Abstract: A conveying screw apparatus for transporting loose material. The apparatus includes:—a power unit apt to rotate an Archimedes screw pushing the loose material;—a charging hopper of the loose material in a tubular body containing the Archimedes screw and the loose material; —a feeding channel of the loose material towards a user; —pushing elements of the loose material present in the feeding channel; and —a back flow preventing device, preventing the back flow of pushing air together with loose material; such a device closing, in case, a through hole to the feeding channel. The back flow preventing device includes a shutter, provided with a plate, undergoing the action of a helical spring which, in any opening/closing step of the through hole, is always substantially perpendicular to the feeding first direction of the material in the tubular body.

Abstract: An adjustable loading/unloading mouth, including: a first tubular element (2), provided with a longitudinal axis (x); a second tubular element (3), provided with a longitudinal axis (y); connecting elements (4, 5, 6) between the first and the second tubular element (2, 3) which connecting elements (4, 5, 6) define a spherical surface (S), provided with a center (O), and which enable the first and the second tubular element (2, 3) to rotate with respect to one another about the center (O); wherein the connecting elements (4, 5, 6) include at least a first connecting element (4) and at least a second connecting element (5) which are reciprocally connectable at a joining plane (P) passing through the center (O) of the spherical surface (S) on which the first connecting element (4) and the second connecting element (5) can rotate with respect to one another about the center (O).

Abstract: A loading apparatus of a silo includes a pneumatic filling circuit connecting the silo to a tanker for transporting a granular or powdery material and a filtering device suitable to filter the compressed transport gas coming out of the silo. A recovery device of at least part of the energy contained in the compressed transport gas of the granular or powdery material is arranged between the tanker and the silo.

Abstract: An Archimedean screw comprising a spiral helix. The Archimedean screw is characterized in that it further comprises a central element plastically twisted like a helix about a central symmetry axis. The spiral helix, in turn, is wound about the central element. Furthermore, the central element is the only supporting element of itself and of said spiral helix.

Abstract: The archimedes screw (1) for use in conveyors, compactors and the like, comprises a shaft (2) on which a helix (3) is coupled, which screw rotates internally of a containing structure, wherein the archimedes screw (1) comprises a plurality of sections (4a, 4b, 4c, 4d . . . 4n) which can be threaded coaxially and solidly in rotation on a central shaft which defines the shaft (2) of the archimedes screw, each of which plurality of sections exhibits different constructional and functional characteristics from other of the plurality of sections.

Abstract: An apparatus and related method for the recovery and the pneumatic transportation of dust coming from a filtration system provided with a particulate collection hopper. The apparatus comprises: an intermediate chamber for the passage of the particulate towards the evacuation means; and shutting means for a bottom opening of said hopper. The apparatus is characterised in that the shutting means comprise, in turn, a shutter moved according to an arrow (ARW) by the action of intermittent pressurised air that flows in a control conduit forming part of said shutting means. Furthermore, the evacuation means comprise elements, specifically a nozzle aligned with a Venturi, to produce a pressure drop in the intermediate chamber.

Abstract: The device for dehumidifying and compacting solids contained in sewage for disposal, is designed to be applicable to machinery (1) comprising: a tubular screen (2) having at least an inlet (4) for a product to be separated, at least an outlet (5) for a separated solid part, and at least a filtering wall (3) through which the separated liquid part exits; a transport organ (7) predisposed internally of the screen (2) for transporting the solid part to be compacted towards the outlet (5). The device comprises a contrast element (9), predisposed at the outlet (5) for interacting contactingly with the product, which in a rest position thereof occupies at least a part of a mouth of the outlet (5) and which, under an effect of a pushing action of the product to be compacted, can elastically deform in order to increase a size of a free mouth of the outlet.

Abstract: A conveying screw apparatus for transporting loose material. The apparatus includes: —a power unit apt to rotate an Archimedes screw pushing the loose material; —a charging hopper of the loose material in a tubular body containing the Archimedes screw and the loose material; —a feeding channel of the loose material towards a user; —pushing elements of the loose material present in the feeding channel; and —a back flow preventing device, preventing the back flow of pushing air together with loose material; such a device closing, in case, a through hole to the feeding channel. The back flow preventing device includes a shutter, provided with a plate, undergoing the action of a helical spring which, in any opening/closing step of the through hole, is always substantially perpendicular to the feeding first direction of the material in the tubular body.

Abstract: The transport device comprises a screw conveyor (5), in a casing (5a) of which a propeller (5b) rotates. The device also comprises an elastic cradle (7), interposed between the casing (5a) of the screw and the propeller (5b), internally of which the propeller (5b) of the screw rotates.