Abstract: 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.

Abstract: There as herein defined a pneumatic conveying system comprising a cyclonic feed apparatus. In particular, there is described a pneumatic conveying system comprising a vessel (e.g. a cyclonic separator) in combination with a sifting device (e.g. a centrifugal device) which is capable of separating pneumatically conveyed material into oversize powder discharge (e.g. waste material) and fine powder discharge (e.g. valuable product material).

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: Specialized arch gaskets for dust collection systems are provided that reinforce certain connections points within the system. More particularly, the arch gaskets may better reinforce the pressure conditions of the dust collection system and enhance the sanitary conditions within the system. The large side engagement formed by the legs of the arch gasket is able to provide a desirable amount of adhesive surface to connect to the desired component in the system (e.g., a door), which may allow a user to more easily install the arch gasket into the system at its intended location.

Abstract: A filtration system housing is provided for supporting filtration system components. The filtration system is configured to remove particulates from air. The housing comprises a plurality of walls defining a chamber for receiving pressurized air. The housing additionally comprises a reinforcing member at least partially surrounding said walls. At least one of the walls is contoured to include a spatial curvature extending along a portion of the at least one wall.

Abstract: Specialized dust collection systems are provided that include a pulsed air system; at least one diaphragm valve assembly, which functions as the pulsed air valve; and a controller for controlling the diaphragm valve assembly and pulsed distribution of the pressurized air. The diaphragm valve assembly may be controlled by the controller and is operable to selectively deliver pressurized air to the air distribution assembly in short pulses or bursts. The disclosed diaphragm valve assembly can be utilized to improve the functionality of the pulsed air system and the dust collection system.

Abstract: 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.

Abstract: Specialized linkage assemblies for Laser-Induced Breakdown Spectroscopy (“LIBS”) systems are provided. The linkage assemblies may facilitate the attachment of the laser housing of the LIBS system onto an existing sample supply chamber, such as a volumetric or gravimetric feeder. Generally, the linkage assemblies may comprise a specialized purge head and inert gas assembly that facilitate the attachment of the laser housing and may enhance the functionality of the LIBS system.

Abstract: Specialized linkage assemblies for Laser-Induced Breakdown Spectroscopy (“LIBS”) systems are provided. The linkage assemblies may facilitate the attachment of the laser housing of the LIBS system onto an existing sample supply chamber, such as a volumetric or gravimetric feeder. Generally, the linkage assemblies may comprise a specialized purge head and inert gas assembly that facilitate the attachment of the laser housing and may enhance the functionality of the LIBS system.

Abstract: A sealing system for connecting a bulk bag to a material handling and processing system. The sealing system comprises a main housing and a discharge tube housed within the main housing. The discharge tube is configured to fluidly connect the bulk bag with the material handling and processing system. The sealing system additionally comprises a first seal configured to selectively seal the bulk bag with respect to the discharge tube, and a second seal configured to selectively seal an interior space of the main housing from the material handling and processing system.

Abstract: A closing system for a bag. The closing system comprises a first plate and a second plate. The closing system further comprises a plurality of constriction rods extending between the first plate and the second plate. The constriction rods present a constriction area configured to receive a portion of the bag. Each of the first plate and the second plate is configured to rotate. Rotation of the plates is configured to shift the constriction rods so as to reduce a size of the constriction area.