A dynamic turbine classifier includes a vessel that has an inlet, a vessel outlet, a vessel interior area, and a top-plate. A rotor is rotatably positioned in the vessel interior area below the top plate. The rotor has a plurality of spaced apart vanes. A substantially cylindrical sleeve that has a lower distal end, the sleeve extends downwardly, below an upper surface of the top plate and so that the lower distal end is located above a bottom end of the rotor. The sleeve is located proximate to and extends around a radially innermost portion of the vanes. A fastening arrangement fixedly secures the sleeve relative to the top plate. The sleeve is configured to establish a flow velocity of particles entrained by a gas flowing through the turbine classifier.
B07B 7/083 - Séparation sélective des matériaux solides portés par des courants de gaz, ou dispersés dans ceux-ci utilisant la force centrifuge produite par la rotation d'ailettes, de disques, de tambours ou de brosses
B02C 23/10 - Séparation ou triage de matériaux, associé au broyage ou à la désagrégation au moyen d'un séparateur situé dans le passage de décharge de la zone de broyage ou de désagrégation
A static classifier including a vessel having an inlet and an outlet and having a vessel interior area. A classifier chamber is positioned in the vessel interior area. The classifier chamber has a plurality of openings extending through a side wall of the classifier chamber and into a classifier interior area of the classifier chamber. The plurality of openings are configured for passing particles entrained in a gas from the vessel interior area into the classifier interior area. One or more flow restrictors are arranged with the classifier chamber. The flow restrictors are configured to establish an optimal flow velocity and direction of the particles entrained in the gas, through the static classifier.
A static classifier including a vessel having an inlet and an outlet and having a vessel interior area. A classifier chamber is positioned in the vessel interior area. The classifier chamber has a plurality of openings extending through a side wall of the classifier chamber and into a classifier interior area of the classifier chamber. The plurality of openings are configured for passing particles entrained in a gas from the vessel interior area into the classifier interior area. One or more flow restrictors are arranged with the classifier chamber. The flow restrictors are configured to establish an optimal flow velocity and direction of the particles entrained in the gas, through the static classifier.
A split door assembly for a grinding mill includes an upper door assembly with an upper door exterior surface. The upper door exterior surface supports a journal actuator assembly and the upper door assembly is pivotal with a journal that has a grinding roller mounted thereon. The split door assembly includes a lower door positioned below the upper door assembly. A hinge assembly pivotally connects the upper door assembly and the lower door. The upper door assembly and the lower door are pivotable together between a closed position and an open position. When in the closed position, the upper door assembly abuts the lower door. When in the open position, the upper door assembly is pivoted away from the grinding mill, the lower door is pivoted away from the grinding mill and the lower door is pivoted relative to the upper door assembly.
B02C 23/00 - Procédés auxiliaires, dispositifs auxiliaires ou accessoires spécialement adaptés au broyage ou à la désagrégation non prévus dans les groupes ou non adaptés spécialement aux appareillages couverts par un seul des groupes
B02C 4/32 - Ajustage des meules, application de pression sur les meules, ou réglage de l'écartement entre les meules
E06B 3/38 - Aménagements des battants caractérisés par le genre de mouvementAménagements des battants modèles dans les ouverturesCaractéristiques des battants ou châssis ayant trait uniquement au genre de mouvement du battant pour un seul genre de mouvement avec un axe de rotation horizontal en haut ou en bas de l'ouverture
5.
Planetary roller mill for processing high moisture feed material
A planetary roller mill for processing a feed material includes a vessel with a grinding ring having an opening and a first area. The grinding ring is in sealing engagement with an inside surface of the vessel. At least two non-circular support plates are secured to a rotatable shaft. Each plate has an axially facing surface. A plurality of rollers are rotatably mounted to and positioned between the two support plates. Each of the plurality of rollers are in grinding communication with the grinding surface. The planetary roller mill includes an air supply system having an outlet in communication with the opening in the grinding ring. Areas of the two support plates are of magnitudes configuring a flow area through the opening of at least 30 percent of the first area to provide a predetermined quantity of heated air to remove moisture from the feed material in the mill.
B02C 15/08 - Appareils comportant des billes ou des cylindres forcés contre l'intérieur d'un anneau par la force centrifuge, les billes ou les cylindres étant mus par une pièce disposée au centre
B02C 15/00 - Désagrégation par éléments broyeurs en forme de cylindres ou de billes, coopérant avec des couronnes ou des disques
A base and ring assembly for a grinding mill includes a base structure with a support plate, an annular support-ring fixedly secured to and positioned above the support plate. The support-ring has a radially inward facing convex surface that extends from a support-ring lower axial end to a support-ring upper axial end. The assembly includes an annular grinding-ring that has a radially outward facing concave surface which extends from a grinding-ring lower axial end to a grinding-ring upper axial end. The grinding ring has a radially inward facing grinding surface. The radially outward facing concave surface is complementary in shape to and engages the radially inward facing convex surface.
A system for conditioning stucco particulate material includes a vessel having separation chamber in communication with a holding chamber having a holding volume therein. The conditioning system includes the holding volume sufficient to condition the stucco particulate material therein and/or a control system configured to delay discharge of the stucco particulate material from the holding chamber. The system for conditioning stucco particulate material is configured to increase residence time of the stucco particulate material in the holding chamber to promote calcining conditioning therein.
B01D 46/02 - Séparateurs de particules comportant des filtres creux faits en un matériau souple, p. ex. appareils de précipitation de poussières
B01D 46/48 - Dépoussiérage autrement que par filtres épurateurs
C04B 11/036 - Dispositifs à cet effet pour le procédé par voie sèche, p. ex. pour la déshydratation sur un lit fluidisé ou dans un four rotatif
F27B 1/08 - Fours à cuve ou fours verticaux similaires ou à prédominance verticale chauffés autrement que par un combustible solide mélangé à la charge
F27B 1/21 - Aménagement des dispositifs de déchargement
F27B 1/26 - Aménagement des dispositifs de commande
F27B 1/28 - Aménagement des dispositifs de surveillance, des indicateurs, des dispositifs d'alarme
A planetary roller mill for processing a feed material includes a vessel with a grinding ring having an opening therethrough and a first area. The grinding ring is in sealing engagement with the inside surface of the vessel assembly. At least two non-circular support plates are secured to a rotatable shaft. Each plate has an axially facing surface. A plurality of rollers rotatably are mounted to and positioned between the two support plates. Each of the plurality of rollers are in grinding communication with the grinding surface. The planetary roller mill includes an air supply system having an outlet in communication with the opening in the grinding ring. Areas of the two support plates are of magnitudes which configure a flow area through the opening of at least 30 percent of the first area to provide a predetermined quantity of heated air to remove moisture from the feed material in the grinding assembly.
B02C 15/08 - Appareils comportant des billes ou des cylindres forcés contre l'intérieur d'un anneau par la force centrifuge, les billes ou les cylindres étant mus par une pièce disposée au centre
B02C 15/00 - Désagrégation par éléments broyeurs en forme de cylindres ou de billes, coopérant avec des couronnes ou des disques
An impact mill using hammers to strike particles and reduce their size as the material progresses through a grinding chamber. Baffles are provided in the grinding chamber, adjacent the interior wall thereof, concentrically about the drive shaft of the mill. The baffles are adjacent to the hammers in the area of hammer sweep and form a path for the material using the flow of air through the mill and the swing of hammers to keep material from falling within the mill and remaining in the hammer sweep area. A variable speed motor varies the rate of movement of the hammers to increase or decrease the rate of strike of hammers to more efficiently and effectively reduce the material passing therethrough. The baffles can be retrofit into existing mills and can be created in angular sections with the lining of the grinding chamber for modular installation and removal.
A roller mill system includes a vessel having an inlet, an outlet, a grinding zone and a classifier zone. The grinding zone includes a grinding assembly configured for grinding the material into fine particles. The grinding zone also includes a rejects capture and discharge system that includes one or more discharge conduits for conveying rejects away from the vessel. The rejects capture and discharge system includes: 1) a collection trough located under the grinding assembly and in communication with one of the discharge conduits, for discharging rejects from the grinding zone; and/or 2) a turbine classifier mounted in the classifier zone. The turbine classifier is rotatable about a central axis. Another outlet is formed in a side wall of the classifier zone. The turbine classifier is configured to expel the rejects radially outward therefrom, through the side wall outlet and into another one of the discharge conduits.
A bowl mill for producing coarse ground particles has a substantially closed body, a bowl assembly, a plurality of grinding rolls, and a coarse particle transport enabling area. The substantially closed body has an interior area. The bowl assembly includes a rotatable grinding table mounted for rotation in a direction of rotation in the interior area. The grinding table has a grinding surface thereon. The plurality of grinding rolls are positioned proximate the grinding surface. The grinding rolls and the grinding surface define a grinding area therebetween. The coarse particle transport enabling area is located radially outward from the grinding area. The coarse particle transport enabling area is configured to allow the coarse particles to freely exit the grinding area and to mitigate the coarse particles from being circulated back into the grinding area.
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
Produits et services
(1) Grinding and pulverizing mills, mechanical air separators; laboratory, pulverizing and separating machines for the mineral processing industries and parts and fittings therefor.
A hammermill, such as an imp mill 10, for pulverizing material includes a housing 16 defining a grinding chamber 14 having a grinding apparatus 12 disposed therein. The material is fed into the grinding chamber to the grinding apparatus through an inlet conduit 24, and the resulting ground material is directed from the grinding chamber through an outlet conduit 28. The grinding apparatus includes a plurality of hammer disks 32 axially spaced along a rotor 34, wherein disks 32 are disposed within the grinding chamber 14. A plurality of rows 41-46 of hammers 30 is attached to the hammer disks 32. The hammers 30 of each respective row of hammers are circumferentially spaced around the hammer disks 32, wherein each row of hammers is formed to provide generally uniform wear across each row of hammers. The uniform wear may be achieved by forming the hammers 30 of different hardness or wear resistant qualities, and/or configuring the rows of hammers with different shapes.
B02C 13/09 - Désagrégation par appareils à batteurs rotatifs à arbre de rotor horizontal à batteurs fixés rigidement sur le rotor et projetant le matériau contre une plaque d'impact ou de percussion
An electronically controlled journal loading system 20 for controlling and adjusting the amplitude of the load applied to a journal assembly 19 of a pulverizing mill 10. The journal loading system 20 includes a servomotor 44, resolver 134, vertical gearbox 42, coil spring assembly 40, controller 46 and a user interface 48. The journal loading system 20 provides electronic control and adjustment of the force applied to the journal assembly 19 to thereby increase or decrease the load that a grinding roll 18 imposes on the material being pulverized. In the mode of operation of the servo journal loading system 20, a desired load set point is selected via the user/operator interface 48. The servomotor 44 rotates a preload stud (or servo screw) 50 within the coiled spring assembly 40 in the appropriate direction via the gearbox 42. As the preload stud 50 turns, a bronze nut 100 and bushing 94 move axially along the stud to compress or decompress the spring 86. Based upon the linear movement of the preload stud 50 and the precalculated spring force of the spring 86, the load applied to the journal assembly 19 is displayed on the operator interface 48. Once the journal loading level is achieved the servomotor 44 can be turned off since the spring assembly 40 maintains the selected loading to the journal assembly 19.
