The invention discloses a double vibration source square oscillating sieve, comprising a support frame, a sieve body, connecting rods and a vibration exciter; the sieve body is slantwise provided in the support frame, the front side and back side of the sieve body are both provided with the connecting rods, and two ends of the connecting rods are connected with the upper part of the support frame and the lower part of the sieve body by a cross universal joint; the vibration exciter is fixedly provided on any position of the upper end, the lower end and the middle part of the sieve body, and the sieve body is provided with a motor which is connected with the vibration exciter by a belt; the vibration exciter comprises a fixed housing, a gear portion, first vibration excitation assemblies and second vibration excitation assemblies which are connected with the gear portion.

A screening assembly for screening material includes an assembly frame, a multi-deck screening device, a transfer conveyor and a drive means. The drive means is operable to shift at least one of the discharge ends of the screening device and the receiving end of the conveyor relative to the assembly frame to allow the transfer conveyor to selectively receive material from an upper screen and from both screens of the screening device at their respective discharge ends. A mobile material processing plant incorporating the screening assembly is included.

A system for separating components from a slurry of drilling fluid and drill cuttings on a shaker screen having an upper side and a lower side within a shaker. The system also has a pressure differential generator to pull an effective volume of air through a section of the shaker screen to enhance the flow of drilling fluid through the section of the shaker screen and the separation of drilling fluid from drill cuttings and further maintain an effective flow of drill cuttings off the shaker. A method of separating components of a slurry of drilling fluids and solids has the steps of delivering the slurry to a shaker, flowing the slurry over a first screen and applying an effective amount of vacuum to a first portion of the first screen to remove the drilling fluids from the slurry without stalling the solids on the first screen.

An apparatus and method for facilitating recovery of lubrication beads is provided. The apparatus includes a hydrocyclone, for separating drilling fluid into a high density stream and a low density stream containing a major portion of the lubrication beads; a receiving pump, for pumping drilling fluid to the hydrocyclone; a discharge pump, for pumping the high density stream from the lower end of the hydrocyclone to further processing; and a hose for flowing the low density stream from the upper end of the hydrocyclone to the cleaned fluid handling system. A method for integrating the apparatus for facilitating recovery of lubrication beads from a drilling fluid into a solids control apparatus includes positioning an end of a first hose to receive the drilling fluid; arranging an end of a second hose in communication with the first shaker's filter screen; and setting an end of a third hose to empty into the cleaned fluid handling system. A method for facilitating recovery of lubrication beads from a drilling fluid by a shaker system includes receiving drilling fluid in a hydrocyclone; separating the drilling fluid into a high density stream and a low density stream containing a major portion of the lubrication beads; and flowing the high density stream to a first shaker of the shaker system, and directing the low density stream to a second shaker of the shaker system.

A modular nut cleaning plant comprises a nut sizer and a stick remover mounted to the nut sizer. A vacuum unit is mounted to the stick remover. A nut product stream will pass on the stick remover through the vacuum unit which will vacuum light debris from the nut product stream. The nut product stream moves on a chain on the stick remover. Large debris and sticks that do not fall through openings in the chain will pass into a debris conveyor. Nuts and debris that fall through the openings in the chain will be delivered to the nut sizer. The nut sizer will rotate and tumble nuts and debris in the nut product stream. Nuts of an undesirable size and debris will pass into a debris conveyor. Nuts of a desired size will pass through the nut sizer into a chute or other conveyance to be delivered to further nut processing apparatus.

A vibrating screen feed conveying apparatus for conveying and separating sticky “moisture laden bulk solids” which are sticky and wet flowing onto a vibrating screening feeder and into a hopper. The apparatus includes a bed on which material is conveyed, a longitudinal counterbalance supported on a plurality of isolation springs, a plurality of inclined drive springs extending between the bed and the longitudinal counterbalance, and a plurality of stabilizers for controlling movement of the drive springs along their central axes. A plurality of vibratory motors, each having rotatable eccentric weights are attached to the rear end of the longitudinal counterbalance. The eccentric weights rotate in phase with one another to vibrate the bed at a vibration frequency.

A vibrating screen feed conveying apparatus for conveying and separating sticky “moisture laden bulk solids” which are sticky and wet flowing onto a vibrating screening feeder and into a hopper. The apparatus includes a bed on which material is conveyed, a longitudinal counterbalance supported on a plurality of isolation springs, a plurality of inclined drive springs extending between the bed and the longitudinal counterbalance, and a plurality of stabilizers for controlling movement of the drive springs along their central axes. A plurality of vibratory motors, each having rotatable eccentric weights are attached to the rear end of the longitudinal counterbalance. The eccentric weights rotate in phase with one another to vibrate the bed at a vibration frequency.

A sifter insert for use in a sifting device has an insert frame and a screening media affixed thereto. An insert frame air channel is located within the insert frame. The sifter insert is sized to be received in a sifter box frame of an associated sifter box. The sifter box frame has a box frame air channel in fluid communication with the insert box frame channel of the received sifter insert. The passage of air through the box frame air channel and the insert frame air channel may cool the sifter box and the insert frame, and, may cool the screening media and the material being sifted thereon. Channel holes in the inset frame may direct air from the insert frame air channel to the screening surface of the screening media.

An object-sorting apparatus includes a housing that extends from a top end to a bottom end, at least one vibration element, and a plurality of stages arranged in a vertical sequence in the housing between the top end and the bottom end. At least one of the stages includes a sorting base that at least partially defines a floor of the at least one stage. The sorting base is coupled to the at least one vibration element, and is configured to receive thereon a mixture of objects having different sizes, including a target size associated with the at least one stage. The stage also includes apertures defined in and extending through the sorting base and into flow communication with a next lower stage. The apertures are sized to receive therethrough, from the mixture, objects having a size smaller than the target size associated with the at least one stage.

A vibratory apparatus includes a deck assembly with a longitudinal axis, an inlet end, and an outlet end. The deck assembly includes a plurality of deck sections each having a plurality of openings. Each deck section has upstream and downstream edges, the downstream edge of each successive deck section disposed closer longitudinally to the outlet end than the downstream edge of each preceding deck section. The upstream edge of each successive deck section is disposed closer longitudinally to the upstream edge of each preceding deck section than the downstream edge of the preceding deck section is disposed to the upstream edge of the preceding deck section, thereby defining an overlapping portion of the preceding deck section and a non-overlapping portion of the preceding deck section. The overlapping portion has larger openings than the non-overlapping portion for each preceding deck section.