A sieve frame, including: a sieving component arranged in a horizontal direction; a support component arranged below the sieving component, spaced apart from the sieving component, and disposed parallel to the sieving component, the support component including a plurality of openings; a cleaning component arranged between the sieving component and the support component, supported by the support component, and used to clean the sieving component; and a bottom plate arranged below the support component, the bottom plate including an inclined surface inclining relative to the horizontal direction and a material discharging port arranged on a side edge of the bottom plate, and the inclined surface extending to the material discharging port. A sieving device is further included. The sieve frame and the sieving device exhibit high material discharging speed, and the sieve frame provides a high yield. The device has a reduced size and a reduced footprint.

A shaker screen assembly comprising a support frame and a screen subassembly attached to the support frame is provided. The screen subassembly includes a planar panel and a mesh section attached to the planar panel. The mesh section includes a series of undulations, each undulation including an elongated base portion and an elongated raised portion. Each of the elongated base portions includes a bottom planar portion, a first undulation side, and a second undulation side.

This disclosure discloses a shaker screen. The shaker screen comprises a frame and at least one screen layer supported by the frame for sieving materials. The frame comprises a rectangular outer support structure, at least one lateral inner support member, and at least one longitudinal inner support member. The lateral inner support member comprises an aperture, and the longitudinal inner support member comprises a groove on a side of the longitudinal inner support member. The lateral inner support member is engaged with the longitudinal inner support member by engaging the aperture on the lateral inner support member and the groove on the longitudinal inner support member.

A disclosed screening apparatus includes a subgrid, and a screen element attached to the subgrid via laser welding at a plurality of attachment positions such that, under vibrational excitation, the screen element has a pre-determined profile of vibrational motion relative to the subgrid. The screen element may be attached at a maximal number of attachment locations to the subgrid to minimize relative motion of the screen element and the subgrid under vibrational excitation, or the screen element may be attached a sub-set of the maximal number of attachment locations to allow vibrational motion of the screen element relative to the subgrid. A disclosed method may include attaching a plurality of screen elements to a respective plurality of subgrids, attaching the plurality of subgrids to one another to form a screening pre-assembly, and cutting edges of the screening pre-assembly to form the screen assembly having a perimeter with a pre-determined shape.

The present disclosure provides a locking false bottom multifunctional kitchen appliance, including: a main body that is machined into a sheet-like body from a silica gel material, two sides of a left side body and a right side body of the sheet-like body being docked to define a circular body, an upper flange and a lug protruding outwards from a top of the circular body, a support side being disposed at a bottom of the circular body, a groove being recessively disposed on the support side, a docking portion of the circular body being provided with a catch device, the catch device being capable of operating the left side body and the right side body of the circular body for combination or separation. During use, any sheet having a desired number of meshes only needs to be mounted. The sheets are diversified, and thus the product is multifunctional, reasonable in structure, convenient in use, and highly practicable.

A disclosed screening apparatus includes a subgrid, and a screen element attached to the subgrid via laser welding at a plurality of attachment positions such that, under vibrational excitation, the screen element has a pre-determined profile of vibrational motion relative to the subgrid. The screen element may be attached at a maximal number of attachment locations to the subgrid to minimize relative motion of the screen element and the subgrid under vibrational excitation, or the screen element may be attached a sub-set of the maximal number of attachment locations to allow vibrational motion of the screen element relative to the subgrid. A disclosed method may include attaching a plurality of screen elements to a respective plurality of subgrids, attaching the plurality of subgrids to one another to form a screening pre-assembly, and cutting edges of the screening pre-assembly to form the screen assembly having a perimeter with a pre-determined shape.

A screen assembly for vibratory separation includes a screen having a plurality of raised screen components formed therein, with each of the raised screen components defining a face oriented to oppose a flow direction of the screen assembly. In examples, a screen of the screen assembly is assembled from a plurality of metal cloth layers bonded together. Bonding of the metal cloth layers may be accomplished by a sintering process.

A shaker screen assembly comprising a support frame and a screen subassembly attached to the support frame is provided. The screen subassembly includes a planar panel that includes a plurality of undulation sealing tabs, and a mesh section attached to the planar panel. The mesh section includes a series of undulations, each undulation including an elongated base portion and an elongated raised portion. The mesh section is attached to the planar panel such that the elongated raised portions form a series of elongated open areas having open ends and an undulation sealing tab of the planar panel is positioned in each of the open ends. The undulation sealing tabs help prevent fluid from leaking or flowing through the open ends when the shaker screen assembly is in use.

A disclosed screening apparatus includes a subgrid, and a screen element attached to the subgrid via laser welding at a plurality of attachment positions such that, under vibrational excitation, the screen element has a pre-determined profile of vibrational motion relative to the subgrid. The screen element may be attached at a maximal number of attachment locations to the subgrid to minimize relative motion of the screen element and the subgrid under vibrational excitation, or the screen element may be attached a sub-set of the maximal number of attachment locations to allow vibrational motion of the screen element relative to the subgrid. A disclosed method may include attaching a plurality of screen elements to a respective plurality of subgrids, attaching the plurality of subgrids to one another to form a screening pre-assembly, and cutting edges of the screening pre-assembly to form the screen assembly having a perimeter with a pre-determined shape.

A screen panel for a vibratory machine is disclosed. The screen panel can include a reinforcing structure having a top surface. The reinforcing structure can define a plurality of apertures through the reinforcing structure. A polymer layer can have a bottom surface that is arranged over the top surface of the reinforcing structure. The polymer layer can define a plurality of apertures therethrough. Each aperture of the plurality of apertures of the polymer layer can be aligned with a single respective aperture of the plurality of apertures of the reinforcing structure.