A vibratory separator includes a screen frame having an upper screen surface and a plurality of openings and a first screen insert disposed in a first opening of the plurality of openings of the screen frame, the screen insert having a screen surface positioned at a first height above the supper screen surface. The vibratory separator also includes a second screen insert disposed in a second opening of the plurality of openings of the second screen frame, wherein a screen surface of the second screen insert is positioned at a second height. The second height may be different from the first height. A method of processing fluid includes providing a flow of fluid to a vibratory separator, and flowing the fluid over a screen having a first screen insert positioned at a first height.

A vibratory separator includes a screen frame having an upper screen surface and a plurality of openings and a first screen insert disposed in a first opening of the plurality of openings of the screen frame, the screen insert having a screen surface positioned at a first height above the supper screen surface. The vibratory separator also includes a second screen insert disposed in a second opening of the plurality of openings of the second screen frame, wherein a screen surface of the second screen insert is positioned at a second height. The second height may be different from the first height. A method of processing fluid includes providing a flow of fluid to a vibratory separator, and flowing the fluid over a screen having a first screen insert positioned at a first height.

The present disclosure provides three-dimensional (3D) printing systems, apparatuses, software, and methods for the production of at least one requested 3D object. The 3D printer includes a material conveyance system, filtering system, and unpacking station. The material conveyance system may comprise transporting pre-transformed (e.g., powder) material against gravity, by directional conveyance (e.g., of a bounceable platform), and prolonged uninterrupted sieving while minimizing sieve blinding. The 3D printing described herein comprises facilitating non-interrupted (e.g., curbs interruptions of) material dispensing through a component of the 3D printer, such as a layer dispenser.

The invention is used in various branches of industry, in particular in agriculture for preparing seeds for sowing and for selection purposes. The method of separating a granular mixture in a flowing medium is based on a gravitational supply of particles, with an aerodynamic, monotonously increasing action thereon with a cascade of flat jets, said cascade being stabilized in terms of pressure and discharge. Large impurities are removed from the granular mixture beforehand, and stable parameters are maintained in the separation chamber. The device comprises a vibrating screen, an adjustable hopper with an agitator and a vibrating chute, a generator of a cascade of flat jets, which is connected to a drive for supplying air under pressure, a fraction collector and a separation chamber. The output of the separation chamber is covered with a filtering element in the form of a rotating drum with a calibrating sifter on the surface, said sifter being connected to a cyclone.

The invention is used in various branches of industry, in particular in agriculture for preparing seeds for sowing and for selection purposes. The method of separating a granular mixture in a flowing medium is based on a gravitational supply of particles, with an aerodynamic, monotonously increasing action thereon with a cascade of flat jets, said cascade being stabilized in terms of pressure and discharge. Large impurities are removed from the granular mixture beforehand, and stable parameters are maintained in the separation chamber. The device comprises a vibrating screen, an adjustable hopper with an agitator and a vibrating chute, a generator of a cascade of flat jets, which is connected to a drive for supplying air under pressure, a fraction collector and a separation chamber. The output of the separation chamber is covered with a filtering element in the form of a rotating drum with a calibrating sifter on the surface, said sifter being connected to a cyclone.

The invention relates to, inter alia, a screening system (10), comprising: at least one first substantially annular screen support (11) and a second substantially annular screen support (12); at least one pressure rod (14), which braces the screen supports (11, 12) with each other in such a manner that a compressive stress is produced between the screen supports (11, 12); at least one substantially cylindrical outer screen surface (13), which is clamped between the screen supports (11, 12); and at least one resonator (15) for the introduction of ultrasonic vibrations directly into the screen surface (13). According to a first embodiment of the invention, the resonator (15) is fastened to the screen surface (13) and essentially runs from the first screen support (11) to the second screen support (12). The invention further relates to an eddy-current screening machine and to the use of a screening system (10) or of an eddy-current screening machine.

The invention relates to, inter alia, a screening system (10), comprising: at least one first substantially annular screen support (11) and a second substantially annular screen support (12); at least one pressure rod (14), which braces the screen supports (11, 12) with each other in such a manner that a compressive stress is produced between the screen supports (11, 12); at least one substantially cylindrical outer screen surface (13), which is clamped between the screen supports (11, 12); and at least one resonator (15) for the introduction of ultrasonic vibrations directly into the screen surface (13). According to a first embodiment of the invention, the resonator (15) is fastened to the screen surface (13) and essentially runs from the first screen support (11) to the second screen support (12). The invention further relates to an eddy-current screening machine and to the use of a screening system (10) or of an eddy-current screening machine.

A system and method for coffee bean processing that includes a bean refinement chute with a bean grind inlet and a refined grind outlet; a filter system integrated into at least one surface within the chute; a vibration system operable in an active state that agitates bean grinds during progression from the bean grind inlet to the refined grind outlet; a refined grind chamber positioned adjacent to the refined grind outlet and thereby collects refined grinds; and a filtered grind chamber positioned beneath the filter system and thereby collects filtered grinds.

A system and method include a shaker configured to separate solids from a drilling fluid, the shaker having a screen assembly, and an actuated arm operatively coupled to the shaker, the actuated arm configured to interact with the screen assembly of the shaker. The actuated arm is configured to interact with the screen assembly of the shaker, with the actuated arm configured to remove, to inspect, to clean, to repair, or to replace the screen assembly of the shaker.

The invention relates to a device for determining particle size distribution in a bulk material, such as milled or grinded grain for animal feed. The device comprises an inlet for receiving at least a portion of the bulk material, a sorting mechanism for sorting the received bulk material. Said sorting mechanism comprises at least a first sorting device for sorting said received bulk material into at least two sorted partitions wherein the sorting device are capable of sorting different particle sizes and said at least two sorted partitions have different particle sizes. The invention further comprises a motor or actuator for vibrating said sorting device, a weighing system with at least one sensor for weighing the at least two sorted partitions sorted by said sorting mechanism and a data output for generating output data indicative of a weight of the at least two sorted partitions, so as to allow calculation of the particle size distribution in the bulk material received in the inlet and thus provide information regarding the particle size composition of the milled or grinded grain.