摘要:
An apparatus for angularly positioning a shaker bed, including a discharge end, includes an air source providing pressurized air, an hydraulic tank in selective communication with the air source and containing a quantity of fluid, at least one bellow in selective fluid communication with the hydraulic tank, and a lift control assembly controlling communication of pressurized air between the air source and the hydraulic tank and controlling communication of fluid between the hydraulic tank and the at least one bellow.
摘要:
A system for separating components of a slurry is disclosed, the system including a housing; a basket for holding at least one shaker screen, the basket movably mounted in the housing; at least one vibrator coupled to the basket; a sump disposed below the basket to collect at least a portion of the slurry passing through the at least one shaker screen; a pressure differential device fluidly connected to the sump for developing a pressure differential across the at least one shaker screen; and a toggling device for toggling the pressure differential across the screen. A system including a degassing chamber fluidly connected to a sump and a pressure differential device, wherein the degassing chamber is disposed between the sump and the pressure differential device, and a fluid conduit fluidly connected to the degassing chamber for recovering a degassed fluid is also disclosed.
摘要:
A screen includes three or four layers of woven metal screen cloth. The coarsest of these layers is a structural layer includes threads which are woven into the cloth with surfaces which are fusible below a temperature at which the other layers of screen cloth are heat affected. These woven threads include each of the threads in the coarse screen cloth with the coated threads being wire with fusible polypropylene or polyethylene coatings. The cloth could alternatively be coated or a fusible grid used between screens instead. A support layer above the structural layer may include a woven metal screen with woven elements which are either coated with fusible material or are solidly of fusible material woven periodically therethrough in at least one direction. A fusible grid could alternatively be employed. Screens are laminated with one or two fine mesh screens heated on the support woven screen cloth with fusible surfaces to locate the fusible material in the finer cloths. The structural layer of woven screen cloth has the fusible surfaces only encapsulating the support layer just above and not the finer screen cloths on the other side of the support layer.
摘要:
A screen assembly that is sufficiently flexible to adapt to a non-planar profile of a crowned deck on a vibrating shaker. When attached to the crowned deck, the screen assembly provides a screen with less curvature than the crowned deck.
摘要:
A screen includes two or three layers of woven metal screen cloth. The coarsest of these layers includes threads which are woven into the cloth with surfaces which are fusible below a temperature at which the other layers of screen cloth are heat effected. These woven threads may include each of the threads in the coarse screen cloth with the coated threads being wire with fusible polypropylene or polyethylene coatings. The coarse screen cloth may include a woven metal screen with woven elements which are either coated with fusible material or are solidly of fusible material woven periodically therethrough in at least one direction. Screens are laminated with one or two fine mesh screens heated on the woven screen cloth with fusible surfaces to locate the fusible material in the finer cloths.
摘要:
Screen assemblies having a plurality of supports assembled with peripheral screen frames with screen cloth extending fully over the assemblies. The supports are assembled with each other and with the screen frame using dovetail mechanisms. Each support includes a cell structure having walls defining open cells. The walls have an elongate cross section to provide thickness to the structure. A thin support grid is integrally formed with the walls with the top of the support grid and the top of the walls lying in the same plane. The top of the surrounding frame also lies in this plane. The walls and the frame each have energy directors for ultrasonic bonding to the screen cloth laid over the assembly. The lower edge of the walls and of the screen frame also lie within a plane and have energy directors for receipt of a larger mesh closure screen to retain self-cleaning sliders or elements within the cells. The cells have no straight edges in plan. The support grid is defined by elongate elements each having a rounded upper surface to reduce stress on the screen cloth. The screen cloth may be lightly tensioned and can be of polymeric material as well as of metal such as stainless.
摘要:
A shaker for separating solids from a drilling fluid includes a top screening deck (130), a flow-back pan (160) positioned beneath the top screening deck (130) for receiving an initially separated drilling fluid from the top screening deck. The flow-back pan (160) is divided into a plurality of channels (A, B, C, D). The shaker further includes a fluid distribution box (210), which includes a plurality of conduits (A, B, C, D). Each channel (A, B, C, D) of the flow-back pan (160) corresponds to one of the plurality of conduits (A, B, C, D) in the fluid distribution box (210) and each channel communicates a stream of the initially separated drilling fluid to the corresponding conduit. The shaker further includes a middle screening deck (140) and a bottom screening deck (150). Each conduit (A, B, C, D) routes the stream of initially separated drilling fluid to a corresponding one of the middle screening deck (140) and the bottom screening deck (150).
摘要:
A method of forming a shaker screen includes forming a frame, and attaching a first sealing element to at least one side of an outer perimeter of the frame, wherein the attaching comprises aligning a first mating surface of the frame to a second mating surface of the first sealing element, and wherein the first mating surface of the frame includes an extension, and the second mating surface of the first sealing element includes a groove configured to align with the extension. A system of sealing shaker screens includes a first screen and a second screen disposed adjacent the first screen, wherein a first sealing element of a first frame and a portion of the second screen interact to provide a seal between the first screen and the second screen.
摘要:
A shaker screen including a sealing element and a composite frame, wherein the sealing element is attached to a basal perimeter of the composite is disclosed. Furthermore, a method of forming a shaker screen including forming a sealing element, forming a composite frame, and attaching the sealing element to the composite frame, wherein the sealing element is disposed along at least one surface of a basal perimeter of the composite frame is disclosed. Also, a shaker screen attachment including a sealing element, a composite frame, and a wedge is disclosed. The shaker screen attachment further includes wherein the sealing element is attached to a basal perimeter of the composite frame, and wherein the wedge is disposed between the composite frame and a shaker basket such that the sealing element compresses against the shaker basket.
摘要:
A wedging apparatus for a vibrating separator including an outer polygonal surface to secure a screen to the vibrating separator, wherein the outer polygonal surface extends substantially along the length of a screening surface of the vibrating separator is disclosed. A screen for a vibratory separator including a frame having a top surface and a bottom surface, and at least one filter element connected to the frame, wherein the bottom surface comprises a wedge engagement profile is also disclosed. A vibrating separator apparatus including a first side wall, a second side wall opposite the first side wall, a bottom wall connecting the first side wall and the second side wall, a first screen having a top surface and a bottom surface, at least one wedging apparatus disposed along the length of the bottom surface of the first screen is also disclosed.