Abstract:
L'invention concerne un dispositif pour le chauffage par micro-ondes d'un matériau introduit sous forme de particules ou de pâte, le dispositif comprenant une enveloppe externe (30) fixe et délimitant une cavité interne (31) fermée en communication avec au moins: des moyens d'admission (35) du matériau, un orifice (32) d'introduction d'un champ de micro-ondes -des moyens de brassage (36) du matériau, des moyens de mise en rotation (41) des moyens de brassage (36), des moyens d'évacuation (45) des produits issus du matériau chauffé, des moyens de déchargement des produits hors des moyens de brassage (36) pour les évacuer par les moyens d'évacuation, des moyens de capture des micro-ondes dimensionnés sur les différentes ouvertures de l'enveloppe (30) pour confiner les micro-ondes dans l'enveloppe lors des différentes phases de fonctionnement dudit four. L'invention concerne également un procédé de mise en oeuvre du dispositif.
Abstract:
An oven (10) has a rotatable portion (12, 14) comprising an outer chamber (20) and an inner treatment chamber (22) within the outer chamber. The inner treatment chamber is adapted to receive material for treatment and the oven has means (28, 32, 34, 36, 38, 42) to heat the inner treatment chamber externally. Preferably, the inner treatment chamber is heated by means of a flow of hot gases through the outer chamber, which passes over the external surfaces of the walls of the inner treatment chamber. The oven may also include means (44, 48) for introducing a flow of hot gasses through the inner treatment chamber. The flow rate of the hot gasses passing through the inner and outer chambers can be varied according to the nature of the material being treated. The oven is particularly suited to thermally de-coating scrap materials.
Abstract:
The invention relates to an array (1) for aerobically heating free-flowing solids (5), comprising a rotatable rotary drum (2) for receiving the free-flowing solids (5), at least one front wall (6, 26) arranged opposite the rotary drum (2) in a rotatably fixed manner for closing off a front side of the rotary drum (2), and a seal arrangement (14) between the rotary drum (2) and the front wall (6, 26), wherein the seal arrangement (14) comprises a cylindrical sealing surface (16) that is coaxial with respect to the rotary drum (2) and a seal element (17) that glides on the cylindrical sealing surface (16).
Abstract:
Apparatus (1) for high temperature processing of waste material comprises a vessel (4) within which the waste material is processed, and which is rotatable about its longitudinally extending central axis (6) within a carrier framework (5). The carrier framework (5) is supported on a support framework (7) and is slewable about a slew axis (9) between a loading position illustrated in broken lines in Fig. 1 and an operating position illustrated in full lines in Fig. 1 and a discharge position illustrated by the position of the central axis (6a). A communicating duct (37) is rigidly connected to the carrier framework (5) and communicates with the vessel (4) and forms an open mouth (38) thereto. A closure lid (40) pivotally carried on the communicating duct (37) closes the open mouth (38). Front and rear end rotary bearings (25, 26) rotatably carry the vessel (4) in the carrier framework (5), and the front end rotary bearing (25) sealably secures the vessel to the communicating duct (37) while at the same time permitting rotation of the vessel (4) relative to the communicating duct (37). A drive motor (27) mounted in the carrier framework (5) rotates the vessel (4) within the carrier framework (5). Heat exchange medium is supplied to passageways (55) extending along the vessel (4) through the front end rotary bearing (25) for controlling the temperature of the vessel (4).
Abstract:
An asphalt roofing material recycling system and method is used to recycle asphalt materials, such as asphalt shingles and tar paper that include granules, fibers or other particles. The asphalt material is simultaneously heated and milled in a heated milling apparatus, such as a heated ball mill (20), to reduce the asphalt material granules to a fine mesh in suspension in liquid asphalt. Excess moisture is removed from the asphalt material being recycled, either during heating and milling by continuously venting the heated milling apparatus, or before the heating and milling in a drying apparatus. The rotatable milling vessel includes a plurality of mixing members (32). The recycling system also includes a storage apparatus (16) and a filter apparatus (18).
Abstract:
A slurry dewatering device (1) comprises a drum (3) mounted for rotation about an axis of rotation; one or more helical baffles (9) mounted on an inside surface of the drum; a slurry inlet at an inlet end (5) of the drum and a slag outlet at an outlet end (11) of the drum. The drum is mounted such that its axis of rotation is level and the device further comprises a drum rotation mechanism (42, 43, 44, 45) mounted outside the drum.
Abstract:
A heating device (124) for heating particles to be freeze-dried in a rotary drum (102) of a freeze-dryer (100) is provided, the device comprising at least one radiation emitter (202) for applying radiation heat to the particles, and a tube-shaped separator (204) for separating the particles from the at least one emitter (202). The separator (202) being integrally closed at one end and separating an emitter volume (206) encompassing the at least one emitter (202) from a drum process volume (126) inside the drum (102), wherein the heating device (124) protrudes into the drum process volume (126) such that said integrally closed end of the separator (204) is arranged inside the drum (102) as a free end.
Abstract:
The invention relates to a method for producing granulates, notably granulates containing surface-active agents, from a moist starting material in an air-swept dryer (1). According to said method the granulate formed in the dryer (1) is delivered to a conveyor device (3) via an inclined discharge unit (2) pointing away from the dryer (1). To create an easy and economical method which avoids the production of excessively large granules caused by the granulation of coarse-particle components, the invention provides for the dwell time of the starting material in the dryer (1) to be controlled via the travel speed of the conveyor device (3). The invention also relates to a device for carrying out the above method.
Abstract:
Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Dispersionspulvern mittels Sprühtrocknung von wässrigen Polymerdispersionen und Zugabe von Antiblockmittel, in einem Rotationszerstäubungs-Trockner, dadurch gekennzeichnet, dass das Antiblockmittel mittels Förderluft, ganz oder teilweise, in einen Ringspalt gefördert wird, welcher durch ein um das Gehäuse des Rotationszerstäubers konzentrisch angeordnetes Formteil gebildet wird, und welcher in einem Abstand oberhalb zur Oberkante der Zerstäuberscheibe des Rotationszerstäubers endet.
Abstract:
Eine Wärmebehandlungsvorrichtung (100) für Schüttgüter umfasst ein Drehrohr (10; 210), in oder an dem wenigstens eine Wärmequelle (20) angeordnet ist, und das wenigstens eine Beschickungsöffnung (33) und wenigstens eine Austragsöffnung (11) aufweist. An dem Drehrohr ist wenigstens ein einen Abfluss der Schüttgutmenge aus dem Drehrohr ermöglichendes Austragsperrelement angeordnet ist, das von einer Schüttgutmenge mittels einer Änderung des Drehsinns und/oder der Drehzahl des Drehrohrs überwindbar ist. Vorzugsweise erstreckt sich die Austragöffnung (11) axial über einen Teil des Mantels des Drehrohrs (10; 210) und as Austragsperrelement (12) überdeckt in radialer Blickrichtung auf die Behälterwandung die Austragöffnung (11). Das Austragsperrelement (12) sollte wenigstens einen Profilabschnitt (12.1) umfassen, der in einem spitzen Winkel zu der Behälterwandung angeordnet ist.