Abstract: The dryer comprises a casing having a longitudinal axis, a mixing shaft, a circular plate that seals an opening made in one of the end walls of the casing, and a frame supporting the casing and the shaft. In the edge portion of the opening closest to the chamber a first circumferential groove is made which is formed by a first radial cavity and by a second radial cavity deeper than the first, joined by an axial portion. An annular sealing element made of a non-stick material, having a cross-section comprising at least one axial strip and one radial strip, is inserted into the first groove in such a way that the radial strip is inserted into the second cavity and the axial strip occupies the axial portion and the mouth of the first radial cavity.

Abstract: The dryer comprises a casing having a longitudinal axis, a mixing shaft, a circular plate that seals an opening made in one of the end walls of the casing, and a frame supporting the casing and the shaft. In the edge portion of the opening closest to the chamber a first circumferential groove is made which is formed by a first radial cavity and by a second radial cavity deeper than the first, joined by an axial portion. An annular sealing element made of a non-stick material, having a cross-section comprising at least one axial strip and one radial strip, is inserted into the first groove in such a way that the radial strip is inserted into the second cavity and the axial strip occupies the axial portion and the mouth of the first radial cavity.

Abstract: The washing system comprises an implement (60) which can be inserted in a drier (10) and which has a cleaning-liquid supply coupling (62), a distributor duct (64) which is supplied by the coupling (62), and a plurality of liquid-delivery ducts (66) which extend substantially transversely from the distributor duct (64) and carry respective spray heads (68) for the liquid at their ends.

Abstract: The dryer includes a double-walled casing, the inner wall of which defines a cylindrical drying chamber for receiving the products and the outer wall and the inner wall of which define between them an interspace for the circulation of a diathermic fluid. A shaft is mounted in the chamber and has a motor for rotating it about its own axis and at least one blade fixed to it which, on rotation of the shaft, can exert a mixing action on the product and can detach it from the inner wall of the casing. The shaft is mounted eccentrically of the longitudinal axis of the chamber and has a motor rotating it about the longitudinal axis of the chamber.

Abstract: A vacuum rotary drier comprising a hollow body which rotates about a horizontal axis is provided with supplementary stirring devices. These devices, which are fixed to the walls of the hollow body, include a motor located outside the drying chamber and a stirring implement which rotates at high speed within the drying chamber and serves to break up lumps present in the product to be dried.