A vibratory screener includes a screen carrier frame having inner and outer circumferences, a horizontal screen for separation of solid particles within and vertically supported by the frame, one or more vibration motors on the outer circumference of the screen carrier frame and configured to generate vibration perpendicular to the screen, and at least two internal annular disks each having an inner rim and an outer rim. Each internal annular disk is attached to the inner circumference of the frame by its outer rim, the internal annular disks are spaced apart from each other in parallel planes, and an inner sleeve is arranged within the frame. The inner sleeve is attached the inner rims of two of the internal annular disks, where the upper internal annular disk and the inner sleeve provide an unbroken surface and where the lower internal annular disk has openings towards the outside environment.

A powder distributing device for preparing sheet-shaped magnets and a powder distributing method thereof are provided. The powder distributing device includes a mold, a powder feeding mechanism, and a vibrating mechanism. The mold includes a mold body and a screen disposed above the mold and connected to the mold body. The screen sifts magnetic powder into at least one mold cavity of the mold body. The powder feeding mechanism feeds the magnetic powder to the screen. The vibrating mechanism is connected to the mold body The vibrating mechanism drives the mold body and the screen to vibrate together, so that the magnetic powder on the screen is evenly sifted into the mold body and filled to a predetermined density, which improves uniformity of powder distribution in the at least one mold cavity during a molding process, thereby improving performance and consistency of the sheet-shaped magnets.

A method for disposing of a mixture of oxidizable catalyst material and inert support media. The method comprises introducing inert gas into an enclosure. The enclosure contains a plurality of stacked screens, the stacked screens have openings that decrease in size from a top of the stack to a bottom of the stack. The method also comprises introducing the mixture to an uppermost one of the plurality of stacked screens; moving the plurality of stacked screens to cause the oxidizable catalyst material to separate from and migrate to a location beneath the inert support media; conveying the separated inert support media to a location outside the enclosure for disposal as non-hazardous waste; and conveying the separated oxidizable catalyst material to a location outside the enclosure for at least one of reclamation, or thermal destruction.

A method for disposing of a mixture of oxidizable catalyst material and inert support media. The method comprises introducing inert gas into an enclosure. The enclosure contains a plurality of stacked screens, the stacked screens have openings that decrease in size from a top of the stack to a bottom of the stack. The method also comprises introducing the mixture to an uppermost one of the plurality of stacked screens; moving the plurality of stacked screens to cause the oxidizable catalyst material to separate from and migrate to a location beneath the inert support media; conveying the separated inert support media to a location outside the enclosure for disposal as non-hazardous waste; and conveying the separated oxidizable catalyst material to a location outside the enclosure for at least one of reclamation, or thermal destruction.

A screen device having a screen tray which can be vibrated by a vibratory drive having two exciter units mechanically intercoupled by a synchronization device. A sheathing tube extends between two lateral screen panels. At least one of the exciter units has a motor housing mounted in an aperture of one of the lateral screen panels. The sheathing tube has a sheathing tube holder disposed in the area of the inside of the lateral screen panel which sheathing tube holder has at least one fit mount. A fastening element having a securing section is pressed into the fit mount non-rotatably and in an axially immovable manner. A stud of the fastening element is guided through apertures in the lateral screen panel and a fastening flange of the motor housing to connect the motor housing to the lateral screen panel.

A screen device having a screen tray which can be vibrated by a vibratory drive having two exciter units mechanically intercoupled by a synchronization device. A sheathing tube extends between two lateral screen panels. At least one of the exciter units has a motor housing mounted in an aperture of one of the lateral screen panels. The sheathing tube has a sheathing tube holder disposed in the area of the inside of the lateral screen panel which sheathing tube holder has at least one fit mount. A fastening element having a securing section is pressed into the fit mount non-rotatably and in an axially immovable manner. A stud of the fastening element is guided through apertures in the lateral screen panel and a fastening flange of the motor housing to connect the motor housing to the lateral screen panel.