WO2022006945A1 - 用于泥浆振动筛的振动筛筛网 - Google Patents

用于泥浆振动筛的振动筛筛网 Download PDF

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Publication number
WO2022006945A1
WO2022006945A1 PCT/CN2020/102192 CN2020102192W WO2022006945A1 WO 2022006945 A1 WO2022006945 A1 WO 2022006945A1 CN 2020102192 W CN2020102192 W CN 2020102192W WO 2022006945 A1 WO2022006945 A1 WO 2022006945A1
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WO
WIPO (PCT)
Prior art keywords
support member
inner support
screen
frame
longitudinal
Prior art date
Application number
PCT/CN2020/102192
Other languages
English (en)
French (fr)
Inventor
周鹏先
赵春林
齐坤
杨延龙
Original Assignee
河北冠能石油机械制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 河北冠能石油机械制造有限公司 filed Critical 河北冠能石油机械制造有限公司
Priority to US16/977,453 priority Critical patent/US11426767B2/en
Publication of WO2022006945A1 publication Critical patent/WO2022006945A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/01—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons
    • B01D33/03—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements
    • B01D33/0346—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements with flat filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/4645—Screening surfaces built up of modular elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/01—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons
    • B01D33/03—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/4663—Multi-layer screening surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/4672—Woven meshes
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/06—Arrangements for treating drilling fluids outside the borehole
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/06—Arrangements for treating drilling fluids outside the borehole
    • E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
    • E21B21/065—Separating solids from drilling fluids
    • E21B21/066—Separating solids from drilling fluids with further treatment of the solids, e.g. for disposal

Definitions

  • the present disclosure relates generally to shaker screens for mud shakers (shale shakers) and, more particularly, to shaker screens having a frame with increased stiffness and reduced weight.
  • Shakers can be used to remove bulk solids from drilling mud. Shaker screens are removably secured to the shale shaker to separate solids and liquids in drilling mud.
  • the shaker screen may include a frame to support a screen deck mounted above it. During vibration of the shale shaker, the frame formed from materials with less stiffness may not be able to withstand the weight of dense mud, which may reduce the life of the shale shaker screen.
  • a frame formed of a rigid material such as metal can be configured to reinforce the shaker screen and provide sufficient stiffness to avoid buckling under the weight of the dense slurry.
  • wedge block clamps may be configured to secure the shaker screen to the shale shaker. However, loosening of the wedge clamps during vibration may cause unwanted shaker screen movement, which may reduce the efficiency of filtering solids from the drilling mud.
  • Embodiments of the present disclosure relate to a shaker screen having a frame with increased rigidity and reduced weight.
  • the frame includes a rectangular outer support structure, at least one transverse inner support member and at least one longitudinal inner support member.
  • the transverse inner support members include holes and the longitudinal inner support members include grooves on one side of the longitudinal inner support members.
  • the transverse inner support members are engaged with the longitudinal inner support members by engaging the holes and grooves.
  • the frame can provide increased rigidity and reduced weight to the shaker screen.
  • the frame may also incorporate additional holes in the lateral inner support members and/or the longitudinal inner support members to further reduce the weight of the frame.
  • the frame may also include exposed notches or other means on the rectangular outer support structure to connect the shaker screen to equipment such as a shale shaker or another shaker screen .
  • Embodiments of the present disclosure may provide several advantages over existing solutions.
  • One advantage is that embodiments of the present disclosure can strengthen the structure of the frame and increase the stiffness of the frame.
  • joining the transverse inner support members and the longitudinal inner support members not only maintains tension in the screen layers of the shaker screen, but also avoids buckling under the weight of the dense slurry.
  • Another advantage is that the weight of the shaker screen can be reduced by introducing one or more holes in the transverse inner support member and/or the longitudinal inner support member.
  • the exposed slots on the rectangular outer support structure may be connected to another shaker screen to increase the area of the screen deck and increase the throughput of the shale shaker.
  • the exposed slots may also be connected to the shale shaker by coupling with bumps on the shale shaker to secure the shale shaker screen and reduce friction between the shale shaker screen and the shale shaker when the shale shaker vibrates. Undesired relative motion between shale shakers.
  • the present disclosure includes, but is not limited to, the following examples.
  • a frame for a shaker screen comprising: a rectangular outer support structure including two lateral outer support members and two longitudinal outer support members; at least one lateral inner support member, the at least one transverse inner support member includes a first aperture and is coupled with two longitudinal outer support members; and at least one longitudinal inner support member included on a first side of the at least one longitudinal inner support member and is coupled to the two lateral outer support members.
  • the first aperture engages the first groove such that the at least one transverse inner support member engages the at least one longitudinal inner support member.
  • the at least one longitudinal inner support member further includes a second groove on a second side of the at least one longitudinal inner support member, and the second side is parallel to the first One side, wherein the first hole engages the first groove and the second groove.
  • the at least one transverse inner support member includes one or more second apertures, or the at least one longitudinal inner support member includes one or more third apertures, the one The second aperture or apertures or the third aperture or apertures are configured to reduce the weight of the at least one transverse inner support member or the at least one longitudinal inner support member.
  • the first aperture engages the first groove, wherein the first aperture and the first groove interlock.
  • At least one of the two lateral outer support members or the two longitudinal outer support members includes one or more slats.
  • At least one of the one or more slats includes a curved slat configured to enhance the strength of the rectangular outer support structure.
  • At least one of the two lateral outer support members or the two longitudinal outer support members includes an exposed slot configured to connect to equipment or another shaker screen .
  • the rectangular outer support structure includes means configured to secure the screen to an apparatus or another screen.
  • a shaker screen comprising: a frame for the shaker screen and at least one screen layer supported by the frame and configured to screen material.
  • the frame of the shaker screen includes: a rectangular outer support structure including two lateral outer support members and two longitudinal outer support members; at least one lateral inner support member including a first lateral inner support member a hole and coupled with two longitudinal outer support members; and at least one longitudinal inner support member including a first groove on a first side of the at least one longitudinal inner support member and with two longitudinal inner support members Lateral outer support members are coupled.
  • the first aperture engages the first groove such that the at least one transverse inner support member engages the at least one longitudinal inner support member.
  • the rectangular outer support structure includes means configured to secure the shaker screen to the equipment or another shaker screen.
  • Some embodiments provide a method of forming a frame of a shaker screen comprising: providing a rectangular outer support structure comprising two lateral outer support members and two longitudinal outer support members; providing a first aperture comprising a at least one transverse inner support member; providing at least one longitudinal inner support member, the at least one longitudinal inner support member comprising a first groove on a first side of the at least one longitudinal inner support member; a groove interlock to engage the at least one transverse inner support member with the at least one longitudinal inner support member; and connect the at least one transverse inner support member and the at least one longitudinal inner support member to the rectangular outer support structure to form Shaker screen frame.
  • Some embodiments provide a system comprising: a shale shaker and a shaker screen removably mounted on the shale shaker.
  • the shaker screen includes a frame for the shaker screen and at least one screen layer supported by the frame and configured to screen material.
  • the frame of the shaker screen includes: a rectangular outer support structure including two lateral outer support members and two longitudinal outer support members; at least one lateral inner support member including a first lateral inner support member a hole and coupled with two longitudinal outer support members; and at least one longitudinal inner support member including a first groove on a first side of the at least one longitudinal inner support member and with two longitudinal inner support members Lateral outer support members are coupled.
  • the first aperture engages the first groove such that the at least one transverse inner support member engages the at least one longitudinal inner support member.
  • At least one of the two lateral outer support members or the two longitudinal outer support members includes exposed slots configured to connect to a shale shaker or another shaker sieve.
  • FIG. 1A, 1B and 1C illustrate a system including a shale shaker and a shale shaker screen removably mounted to the shale shaker, according to embodiments of the present disclosure
  • FIG. 2 shows an exploded view of a shaker screen according to an embodiment of the present disclosure
  • 3A and 3B illustrate a frame for a shaker screen according to an embodiment of the present disclosure
  • Figures 4A, 4B and 4C illustrate the process of engaging transverse and longitudinal inner support members of a frame according to embodiments of the present disclosure
  • Figures 5A, 5B, 5C and 5D each illustrate a transverse inner support member and a longitudinal inner support member according to embodiments of the present disclosure
  • 6A and 6B illustrate a frame having a rectangular outer support structure including slats according to embodiments of the present disclosure
  • 6C and 6D illustrate a frame having a rectangular outer support structure including curved slats according to embodiments of the present disclosure
  • FIG. 7A and 7B illustrate a frame including an L-shaped notch on a rectangular outer support structure according to an embodiment of the present disclosure
  • FIG. 7C and 7D illustrate a frame including a C-shaped notch on a rectangular outer support structure according to an embodiment of the present disclosure
  • FIGS. 7E and 7F illustrate a frame including notches on a rectangular outer support structure according to embodiments of the present disclosure
  • FIGS 8A and 8B illustrate the connection between two shaker screens according to embodiments of the present disclosure.
  • FIG. 9 shows a flow chart describing a method of forming a shaker screen according to an embodiment of the present disclosure.
  • Embodiments of the present disclosure relate generally to shaker screens for shale shakers, and more particularly, to shaker screens having a frame with increased stiffness and reduced weight.
  • Shaker screens can be configured to separate solids from drilling mud. It should be understood that the methods, apparatus and systems described herein are applicable to any mixture of liquids and solids, or the like.
  • the shale shaker 102 may include a base 106, a shakeable screen mount or basket 108, a plurality of springs 110, a motor 112, an electronic control panel 114, and a well log Well logging tank 116.
  • the base 106 may support the screen basket 108 by a plurality of springs 110 (eg, two springs 110a and 110b on the left side shown in FIG.
  • the shale shaker 102 may also include a logging tank 116 that may smoothly release drilling mud.
  • the shaker screen 104 may be removably mounted on the screen basket 108 of the shale shaker 102, as explained below with reference to FIGS. 1B-1C. Shaker screen 104 may be configured to filter solids in drilling mud released by logging tank 116 .
  • system 100 may include one or more additional or alternative subsections in addition to those shown in FIG. 1A .
  • the shaker screens 104a, 104b, and 104c may be aligned horizontally and sideways. As the shaker screen 104 vibrates with the screen basket 108, solids in the drilling mud may be thrown diagonally upward (eg, 45°) at an angle in the direction from the shaker screens 104a to 104c. In other embodiments, the shaker screens may be stacked vertically, forming several layers that fully or partially overlap each other.
  • FIGS. 1B-1C illustrate an exemplary manner in which a shaker screen, such as the shaker screen 104a, is mounted on the screen basket 108 of the shale shaker 102 in accordance with embodiments of the present disclosure.
  • securing the shaker screen 104a to the screen basket 108 may involve the use of wedge clamps 118 and wedges 120 .
  • the wedge block clamps 118 may be an integral part of the screen basket 108 .
  • the screen basket 108 may also include protrusions 124, and the shaker screen 104a may include exposed notches 122 on the edge of the shaker screen 104a.
  • the tabs 124 may engage with the exposed notches 122 to further secure the shaker screen 104a and reduce friction between the shaker screen 104a and the shale shaker 102 when the wedge block clamps 118 loosen during vibration of the screen basket 108.
  • the advantages of relative motion are not expected.
  • the shaker screen 104a may be secured to the screen basket 108 using other methods of connecting and securing the relative position of the two separate components, including gluing, interlocking, clamping, pinching ) and hook etc.
  • Figure 1C shows the shaker screen 104a mounted on the screen basket 108 according to an embodiment of the present disclosure.
  • the shaker screen 104a may be placed in place under the wedge block clamps 118 such that the tabs 124 engage the exposed notches 122 .
  • the wedge blocks 120 can then be knocked into place to secure the shaker screen 104a to the screen basket 108 .
  • Shaker screen 104a may be any suitable shaker screen or shaker screen in accordance with the present disclosure.
  • Shaker screens 104b and 104c shown in FIG. 1A may be similarly mounted on the screen basket 108 of the shale shaker 102 .
  • FIG. 2 shows an exploded view of a shaker screen 200 according to an embodiment of the present disclosure.
  • the shaker screen 200 may correspond to the shaker screens 104a, 104b, and/or 104c described above in Figures 1A-1C.
  • the shaker screen 200 may include a frame 202 that is encapsulated with a plastic housing 204 to form an encapsulated frame 208 .
  • Shaker screen 200 also includes at least one screen layer 206 (eg, 206a, 206b, and 206c) supported by frame 202 and configured to screen material.
  • the screen layer 206 may be assembled on the encapsulated frame 208 configured to separate solids from the drilling mud.
  • the screen layer 206 may be constructed of woven wire mesh.
  • FIG. 3A shows a frame 300 for a shaker screen according to an embodiment of the present disclosure.
  • frame 300 may correspond to frame 202 described above in FIG. 2 .
  • the frame 300 includes a rectangular outer support structure 302 , at least one transverse inner support member 304 and at least one longitudinal inner support member 306 .
  • the rectangular outer support structure 302 includes two lateral outer support members 308 and 310 and two longitudinal outer support members 312 and 314 .
  • the lateral outer support members 308 and 310 and the longitudinal outer support members 312 and 314 may be made of metal tubes having a cross-section of any shape (eg, square, rectangular, circular, etc.).
  • the lateral outer support members 308 and 310 and the longitudinal outer support members 312 and 314 may be hollow, with both ends sealed with sheet metal.
  • one or more of the lateral outer support members 308 and 310 or the longitudinal outer support members 312 and 314 may be constructed of slats, which are further described in FIGS. 6A-6B .
  • FIG. 3B shows an enlarged schematic view of the circled portion in FIG. 3A .
  • the lateral inner support member 304 includes a first aperture 316 .
  • the transverse inner support member 304 is coupled with the two longitudinal outer support members 312 and 314 of the rectangular outer support structure 302 .
  • the longitudinal inner support member 306 includes a first groove 318 on a first side (eg, upper side) of the at least one longitudinal inner support member 306 .
  • the longitudinal inner support member 306 is connected to the two transverse outer support members 308 and 310 . As also shown in FIG.
  • the first aperture 316 engages the first groove 318 such that the lateral inner support member 304 engages the longitudinal inner support member 306 .
  • the first hole 316 is engaged with the first groove 318 , wherein the first hole 316 interlocks with the first groove 318 . Interlocking the transverse inner support members 304 with the longitudinal inner support members 306 can strengthen the structure of the frame 300 and increase its stiffness.
  • the lateral inner support members 304 may include additional apertures to further reduce the weight of the lateral inner support members 304 .
  • the longitudinal inner support member 306 may also include additional holes to reduce the weight of the longitudinal inner support member 306 .
  • the first aperture 316 may also be configured to engage the two longitudinal outer support members 312 and 314 .
  • the groove 318 may also be configured to engage the two lateral outer support members 308 and 310 .
  • transverse inner support members 402 may correspond to transverse inner support members 304
  • longitudinal inner support members 404 may correspond to longitudinal inner support members 306 described above in FIGS. 3A-3B.
  • the longitudinal inner support members 404 may be inserted into the holes 406 of the transverse inner support members 402 such that the grooves 408 are aligned with the holes 406 .
  • the longitudinal inner support members 404 may then be rotated through an angle (eg, 90°) to engage the transverse inner support members 402 with the holes 406 interlocking with the grooves 408 .
  • the transverse inner support member 502a includes apertures 506a to enable engagement with the longitudinal inner support member 504a.
  • Aperture 506a may correspond to first aperture 316 shown in Figures 3A-3B.
  • the longitudinal inner support member 504a includes a groove 508a on a first side (eg, upper side) of the longitudinal inner support member 504a.
  • the groove 508a may correspond to the first groove 318 shown in Figures 3A-3B.
  • the longitudinal inner support member 504b further includes a second groove 510b on a second side (eg, bottom side) of the longitudinal inner support member 504b, the second side being parallel to the longitudinal direction
  • the first side eg, the upper side
  • the hole 506b engages the groove 508b on the first side and the second groove 510b on the second side.
  • hole 506b may correspond to first hole 316 shown in Figures 3A-3B.
  • the groove 508b may correspond to the first groove 318 as shown in FIGS. 3A-3B.
  • the lateral inner support member 502c can include one or more second holes 512c configured to reduce the weight of the lateral inner support member 502c .
  • the longitudinal inner support member 504d may also include one or more third holes 514d configured to reduce the weight of the longitudinal inner support member 504d.
  • FIG. 6A-6B illustrate an exemplary frame having a rectangular outer support structure including slats according to embodiments of the present disclosure.
  • FIG. 6B shows an enlarged schematic view of the circled portion in FIG. 6A .
  • the rectangular outer support structure 602a of the frame 600a includes two lateral outer support members 604a and 606a and two longitudinal outer support members 608a and 610a.
  • at least one of the two lateral outer support members 604a and 606a or at least one of the two longitudinal outer support members 608a and 610a includes one or more slats.
  • lateral outer support member 604a may include a slat 612a
  • longitudinal outer support member 608a may include a pair of slats 614a and 616a.
  • At least one slat (eg, the slat forming the lateral outer support member 604c) includes a curved slat 612c configured to enhance the strength of the rectangular outer support structure.
  • the two longitudinal outer support members 608c, 610c may also be formed from curved laths.
  • FIG. 7A-7F illustrate an exemplary frame including exposed notches on a rectangular outer support structure according to embodiments of the present disclosure.
  • at least one of the two lateral outer support members of the rectangular outer support structure or at least one of the two longitudinal outer support members includes an exposed slot configured to connect to equipment (eg, shale shaker) or another shaker screen.
  • the rectangular outer support structure 710a may include a pair of L-shaped notches 712a and 714a.
  • FIG. 7B shows an enlarged schematic view of the circled portion in FIG. 7A .
  • L-shaped notch 712a may be formed on longitudinal outer support member 706a formed of a rectangular tube. As shown in FIG. 7B, both ends of the L-shaped notch 712a may be sealed with a metal plate 716a (another metal plate is not shown).
  • the rectangular outer support structure 710c may include a pair of C-shaped notches 712c and 714c.
  • FIG. 7D shows an enlarged schematic view of the circled portion in FIG. 7C .
  • a C-shaped notch 712c may be formed on the longitudinal outer support member 706c formed of a rectangular tube. As shown in Figure 7D, both ends of the C-shaped notch 712c are sealed with a metal plate 716c (another metal plate is not shown).
  • the rectangular outer support structure 710e may include a plurality of notches 712e. Notches 712e may be formed on the lateral outer support member 702e formed of curved slats.
  • the rectangular outer support structure may include means configured to be secured to equipment (eg, a shale shaker) or another shaker screen, such as notches, interlocking joints, bonding structures, clamping structures, clips Tight structure or hook structure, etc.
  • equipment eg, a shale shaker
  • another shaker screen such as notches, interlocking joints, bonding structures, clamping structures, clips Tight structure or hook structure, etc.
  • first shaker screen 802 and the second shaker screen 804 may each include notches 806 and 808 and hooks 810 and 812 on opposite sides of the shaker screens 802 and 804 .
  • the first shaker screen 802 may be coupled to the second shaker screen 804 by securing the hooks 812 on the second shaker screen 804 to the notches 806 on the first shaker screen 802 .
  • FIG. 9 is a flowchart illustrating a method 900 of forming a frame 300 for a shaker screen according to an embodiment of the present disclosure.
  • method 900 includes providing rectangular outer support structure 302 including two lateral outer support members 308 and 310 and two longitudinal outer support members 312 and 314 .
  • method 900 includes providing at least one lateral inner support member 304 including first aperture 316 .
  • the method 900 includes providing at least one longitudinal inner support member 306 including a first groove on a first side (eg, upper side) of the at least one longitudinal inner support member 306 318.
  • the method 900 includes engaging the at least one lateral inner support member 304 with the at least one longitudinal inner support member 306 by interlocking the first aperture 316 with the first groove 318 .
  • the method 900 includes attaching the at least one lateral inner support member 304 and the at least one longitudinal inner support member 306 to the rectangular outer support structure 302 to form a frame 300 for a shaker screen.
  • a portion of the rectangular outer support structure 302 may first be formed.
  • two lateral outer support members 308 and 310 and one longitudinal outer support member 312 (or 314 ) are connected to first form the C-shaped portion of the rectangular outer support structure 302 .
  • the remainder of the rectangular outer support structure 302 eg, the longitudinal outer support members 314 (or 312 )

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
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  • Combined Means For Separation Of Solids (AREA)

Abstract

本公开公开了一种振动筛筛网。振动筛筛网包括框架和由框架支撑的配置成筛分材料的至少一个筛层。框架包括矩形外部支撑结构、至少一个横向内部支撑构件以及至少一个纵向内部支撑构件。横向内部支撑构件包括孔，纵向内部支撑构件包括在纵向内部支撑构件的一侧的凹槽。通过使横向内部支撑构件上的孔与纵向内部支撑构件上的凹槽接合，使得横向内部支撑构件与纵向内部支撑构件接合。

Description

用于泥浆振动筛的振动筛筛网
相关申请的交叉引用
本公开要求于2020年07月06日提交中国专利局的申请号为CN202010642885.0、名称为“用于泥浆振动筛的振动筛筛网”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本公开总体上涉及用于泥浆振动筛(shale shaker，钻井液振动筛)的振动筛筛网，并且更具体地涉及具有框架的振动筛筛网，该框架具有增强的刚度和减小的重量。
背景技术
泥浆振动筛可以用于去除钻井泥浆中的大块固体。振动筛筛网可拆卸地固定至泥浆振动筛以分离钻井泥浆中的固体和液体。振动筛筛网可以包括框架以支撑安装在其上方的筛层。在泥浆振动筛的振动期间，由具有较小刚度的材料形成的框架可能不能承受稠密泥浆的重量，这可能会减少振动筛筛网的寿命。由刚性材料例如金属形成的框架可以配置成增强振动筛筛网并且提供足够的刚度以避免在稠密浆料的重量下弯曲。然而，使用金属框架可能导致振动筛筛网沉重，这可能导致难以将振动筛筛网固定至泥浆振动筛，因为振动筛筛网通常是人工操作放置到泥浆振动筛的指定位置的。另外，楔形块夹具可以配置成将振动筛筛网固定至泥浆振动筛。然而，在振动期间楔形块夹具的松动可能引起不期望的振动筛筛网移动，这可能降低从钻井泥浆中过滤固体的效率。
因此，开发考虑到上述部分问题以及其它可能的问题的装置、系统和方法是行业普遍需求。
发明内容
本公开的实施例涉及具有框架的振动筛筛网，该框架具有增强的刚性和减轻的重量。在实施例中，框架包括矩形外部支撑结构、至少一个横向内部支撑构件和至少一个纵向内部支撑构件。横向内部支撑构件包括孔，纵向内部支撑构件包括在纵向内部支撑构件的一侧的凹槽。通过将孔和凹槽接合，使横向内部支撑构件与纵向内部支撑构件接合。以这种方式，框架可以为振动筛筛网提供增强的刚性和减轻的重量。在一些实施方式中，框架还可以在横向内部支撑构件和/或纵向内部支撑构件上增加附加的孔，以进一步减小框架的重量。在一些实施例中，框架还可以包括在矩形外部支撑结构上的暴露的槽口(exposed notch)或其它装置，以将振动筛筛网连接至诸如泥浆振动筛的设备或另一振动筛筛网。
本公开的实施例可以提供优于现有方案的多个优点。一个优点是本公开的实施例可以增强框架的结构并增加框架的刚度。在实施例中，接合横向内部支撑构件和纵向内部支撑 构件不仅可以保持振动筛筛网的筛层中的张力，而且可以避免在稠密浆料的重量下弯曲。另一优点是，通过在横向内部支撑构件和/或纵向内部支撑构件中引入一个或多个孔，可以减小振动筛筛网的重量。另外，在一些实施例中，矩形外部支撑结构上的暴露的槽口可以连接至另一振动筛筛网，以扩大筛层的面积并增加泥浆振动筛的吞吐量(throughput)。在一些实施例中，暴露的槽口还可以通过与泥浆振动筛上的凸块耦接而连接至泥浆振动筛，以固定振动筛筛网并减少当泥浆振动筛振动时在振动筛筛网与泥浆振动筛之间的不期望的相对运动。
本公开包括但不限于以下实施例。
一些实施例提供了一种用于振动筛筛网的框架，包括：矩形外部支撑结构，该矩形外部支撑结构包括两个横向外部支撑构件和两个纵向外部支撑构件；至少一个横向内部支撑构件，该至少一个横向内部支撑构件包括第一孔并且与两个纵向外部支撑构件耦接；以及至少一个纵向内部支撑构件，该至少一个纵向内部支撑构件包括在该至少一个纵向内部支撑构件的第一侧上的第一凹槽并且与两个横向外部支撑构件耦接。第一孔与第一凹槽接合，使得该至少一个横向内部支撑构件与该至少一个纵向内部支撑构件接合。
在框架的一些实施例或前述实施例的任何组合中，该至少一个纵向内部支撑构件还包括在该至少一个纵向内部支撑构件的第二侧上的第二凹槽，并且第二侧平行于第一侧，其中，第一孔与第一凹槽和第二凹槽接合。
在框架的一些实施例或前述实施例的任何组合中，该至少一个横向内部支撑构件包括一个或多个第二孔，或者该至少一个纵向内部支撑构件包括一个或多个第三孔，该一个或多个第二孔或一个或多个第三孔配置成减小该至少一个横向内部支撑构件或至少一个纵向内部支撑构件的重量。
在框架的一些实施例或前述实施例的任何组合中，第一孔与第一凹槽接合，其中第一孔与第一凹槽互锁。
在框架的一些实施例或前述实施例的任何组合中，两个横向外部支撑构件或两个纵向外部支撑构件中的至少一个包括一个或多个板条。
在框架的一些实施例或前述实施例的任何组合中，该一个或多个板条中的至少一个包括弯曲板条，配置成增强该矩形外部支撑结构的强度。
在框架的一些实施例或前述实施例的任何组合中，两个横向外部支撑构件或两个纵向外部支撑构件中的至少一个包括暴露的槽口，配置成连接至设备或另一振动筛筛网。
在框架的一些实施例或前述实施例的任何组合中，所述矩形外部支撑结构包括配置成将所述筛网固定在设备或另一筛网上的装置。
一些实施例提供了一种振动筛筛网，包括：用于振动筛筛网的框架和由框架支撑的配置成筛分材料的至少一个筛层。振动筛筛网的框架包括：矩形外部支撑结构，该矩形外部支撑结构包括两个横向外部支撑构件和两个纵向外部支撑构件；至少一个横向内部支撑构件，该至少一个横向内部支撑构件包括第一孔并且与两个纵向外部支撑构件耦接；以及至少一个纵向内部支撑构件，该至少一个纵向内部支撑构件包括在该至少一个纵向内部支撑构件的第一侧上的第一凹槽并且与两个横向外部支撑构件耦接。第一孔与第一凹槽接合，使得该至少一个横向内部支撑构件与该至少一个纵向内部支撑构件接合。
在框架的一些实施例或前述实施例的任何组合中，矩形外部支撑结构包括配置成将振动筛筛网固定在设备或另一振动筛筛网上的装置。
一些实施例提供了一种形成振动筛筛网的框架的方法，包括：提供矩形外部支撑结构，该矩形外部支撑结构包括两个横向外部支撑构件和两个纵向外部支撑构件；提供包括第一孔的至少一个横向内部支撑构件；提供至少一个纵向内部支撑构件，该至少一个纵向内部支撑构件包括在该至少一个纵向内部支撑构件的第一侧上的第一凹槽；通过将第一孔与第一凹槽互锁，使该至少一个横向内部支撑构件与该至少一个纵向内部支撑构件接合；以及将该至少一个横向内部支撑构件和该至少一个纵向内部支撑构件连接至矩形外部支撑结构，以形成振动筛筛网的框架。
一些实施例提供了一种系统，包括：泥浆振动筛和可拆卸地安装在泥浆振动筛上的振动筛筛网。振动筛筛网包括用于振动筛筛网的框架和由框架支撑的配置成筛分材料的至少一个筛层。振动筛筛网的框架包括：矩形外部支撑结构，该矩形外部支撑结构包括两个横向外部支撑构件和两个纵向外部支撑构件；至少一个横向内部支撑构件，该至少一个横向内部支撑构件包括第一孔并且与两个纵向外部支撑构件耦接；以及至少一个纵向内部支撑构件，该至少一个纵向内部支撑构件包括在该至少一个纵向内部支撑构件的第一侧上的第一凹槽并且与两个横向外部支撑构件耦接。第一孔与第一凹槽接合，使得该至少一个横向内部支撑构件与该至少一个纵向内部支撑构件接合。
在框架的一些实施例或前述实施例的任何组合中，两个横向外部支撑构件或两个纵向外部支撑构件中的至少一个包括暴露的槽口，配置成连接至泥浆振动筛或另一振动筛筛网。
通过阅读以下详细描述以及下面简要描述的附图，本公开的这些和其它特征、方面和优点将是显而易见的。本公开包括本公开中陈述的两个或更多个特征或元件的任何组合，不管这种特征或元件是否明确地组合或在本文所描述的特定示例实施方式中以其它方式陈述。本公开旨在被整体地阅读，除非本公开的上下文另行阐明，在本公开的任何方面和实施例中，任何可分离特征或元件都应被视为可组合的。
因此可以理解为，提供该发明内容仅是为了概述一些实施例，以便提供对本公开的一些方面的基本理解。上述实施例仅是示例，并且不应被解释为以任何方式缩小本公开的范围或精神。结合附图的以下详细描述，其它示例实施方式、方面和优点将是明显的，附图以示例的方式示出了一些所描述示例实施方式的原理。
附图说明
前文已经概括地描述了本公开的实施例，现在将参考附图，附图不一定按比例绘制，并且其中：
图1A、1B和1C示出了根据本公开的实施例的系统，包括泥浆振动筛和可拆卸地安装至泥浆振动筛的振动筛筛网；
图2示出了根据本公开的实施例的振动筛筛网的分解图；
图3A和3B示出了根据本公开的实施例的用于振动筛筛网的框架；
图4A、4B和4C示出了根据本公开的实施例的接合框架的横向内部支撑构件和纵向内部支撑构件的过程；
图5A、5B、5C和5D各自示出了根据本公开的实施例的横向内部支撑构件和纵向内部支撑构件；
图6A和6B示出了根据本公开的实施例的具有包括板条的矩形外部支撑结构的框架；
图6C和6D示出了根据本公开的实施例的具有包括弯曲板条的矩形外部支撑结构的框架；
图7A和7B示出了根据本公开的实施例的包括在矩形外部支撑结构上的L形槽口的框架；
图7C和7D示出了根据本公开的实施例的包括在矩形外部支撑结构上的C形槽口的框架；
图7E和7F示出了根据本公开的实施例的包括在矩形外部支撑结构上的槽口的框架；
图8A和8B示出了根据本公开的实施例的两个振动筛筛网之间的连接；以及
图9示出了描述根据本公开的实施例的形成振动筛筛网的方法的流程图。
具体实施方式
现在将参考附图在下文中更全面地描述本公开的一些实施方式，在附图中示出了本公开的一些但不是全部实施方式。实际上，本公开的各种实施方式可以以许多不同的形式来体现，并且不应被解释为限于本文阐述的实施方式；相反，提供这些实施例是为了使本公开透彻且完整，并且将向本领域技术人员充分传达本公开的范围。例如，除非另有说明，否则将某物称为第一或第二等不应被解释为暗示特定顺序。此外，可以被描述为在其它事 物上方的某物(除非另有说明)可以替代地在下方，反之亦然；类似地，被描述为在其它事物左边的某物可以替代地在右边，反之亦然。相同的附图标记始终表示相同的元件。
本公开的实施例总体上涉及用于泥浆振动筛的振动筛筛网，并且更具体地涉及具有框架的振动筛筛网，该框架具有增强的刚度和减小的重量。振动筛筛网可以配置成从钻井泥浆中分离固体。应当理解，本文所描述的方法、装置和系统适用于任何液体和固体的混合物，或诸如此类。
图1A示出了根据本公开的实施例的系统100，该系统包括泥浆振动筛102和可拆卸地安装至泥浆振动筛102的一个或多个振动筛筛网104(例如104a、104b和104c)。如所示出的，在一些实施方式中，泥浆振动筛102可以包括底座106、可振动筛网安装装置或筛篮(basket)108、多个弹簧110、马达112、电控板114和测井罐(well logging tank)116。底座106可以通过多个弹簧110(例如，图1A中所示的位于左侧的两个弹簧110a和110b)支撑筛篮108。连接底座106和筛篮108的弹簧110可以在筛篮108振动时减小底座106的振动。在一些实施方式中，马达112可以在电控板114的控制下使筛篮108振动。在一些实施方式中，泥浆振动筛102还可以包括测井罐116，该测井罐可以平稳地释放钻井泥浆。在系统100中，振动筛筛网104可以可拆卸地安装在泥浆振动筛102的筛篮108上，如下面参考图1B-1C所解释的。振动筛筛网104可以配置成过滤测井罐116释放的钻井泥浆中的固体。在一些实施方式中，系统100可以包括除了图1A中所示的那些之外的一个或多个附加或替代子部分。
如图1A所示，在一些实施方式中，振动筛筛网104a、104b和104c可以水平侧向对其排列。当振动筛筛网104与筛篮108一起振动时，钻井泥浆中的固体可以以一定角度沿从振动筛筛网104a到104c的方向对角地向上(例如，45°)抛掷。在其它实施方式中，振动筛筛网可以垂直地堆叠，形成彼此完全或部分重叠的若干层。
图1B-1C示出了根据本公开的实施例的振动筛筛网例如振动筛筛网104a安装在泥浆振动筛102的筛篮108上的示例性方式。在一些实施方式中，将振动筛筛网104a固定至筛篮108可能涉及楔形块夹具118和楔形块120的使用。在一些实施方式中，楔形块夹具118可以是筛篮108的组成部分。
在一些实施方式中，如图1B所示，筛篮108也可以包括凸起124，并且振动筛筛网104a可以包括在振动筛筛网104a的边缘上的暴露的槽口122。凸块124可以与暴露的槽口122契合，实现当楔形块夹具118在筛篮108的振动期间变松时进一步固定振动筛筛网104a和减少振动筛筛网104a与泥浆振动筛102之间的不期望相对运动的优点。在其它实施方式中，可以使用连接和固定两个分离部件的相对位置的其它方法将振动筛筛网104a固定至筛篮 108，包括粘结、互锁、夹持(clamping)、夹紧(pinching)和钩住等。
图1C示出了根据本公开的实施例的安装在筛篮108上的振动筛筛网104a。在一些实施方式中，振动筛筛网104a可以放置在楔形块夹具118下方的适当位置，使得凸块124与暴露的槽口122契合。然后，楔形块120可以被敲入适当位置，以将振动筛筛网104a固定至筛篮108。振动筛筛网104a可以是任何合适的振动筛筛网或根据本公开的振动筛筛网。图1A中示出的振动筛筛网104b和104c可以类似地安装在泥浆振动筛102的筛篮108上。
图2示出了根据本公开的实施例的振动筛筛网200的分解图。在一些实施方式中，振动筛筛网200可以对应于上面图1A-1C中描述的振动筛筛网104a、104b和/或104c。如所示出的，在一些实施方式中，振动筛筛网200可以包括框架202，其用塑料外壳204封装以形成封装的框架208。振动筛筛网200还包括由框架202支撑的配置成筛分材料的至少一个筛层206(例如，206a、206b和206c)。在一些实施方式中，筛层206可以装配在封装的框架208上，配置成从钻井泥浆分离固体。在一些实施方式中，筛层206可以由编织丝网构成。
图3A示出了根据本公开的实施例的用于振动筛筛网的框架300。在一些实施方式中，框架300可以对应于上面图2中描述的框架202。如所示出的，在一些实施方式中，框架300包括矩形外部支撑结构302、至少一个横向内部支撑构件304和至少一个纵向内部支撑构件306。
如图3A所示，在一些实施方式中，矩形外部支撑结构302包括两个横向外部支撑构件308和310以及两个纵向外部支撑构件312和314。在一些实施方式中，横向外部支撑构件308和310以及纵向外部支撑构件312和314可以由具有任何形状(例如，正方形、矩形或圆形等)的横截面的金属管制成。在一些实施方式中，横向外部支撑构件308和310以及纵向外部支撑构件312和314可以是中空的，两端用金属片密封。在一些其它实施方式中，横向外部支撑构件308和310或者纵向外部支撑构件312和314中的一个或多个可以由板条构成，其在图6A-6B中进一步描述。
图3B示出了图3A中的画圈部分的放大示意图。如图3B所示，在一些实施方式中，横向内部支撑构件304包括第一孔316。横向内部支撑构件304与矩形外部支撑结构302的两个纵向外部支撑构件312和314耦接。在一些实施方式中，纵向内部支撑构件306包括在至少一个纵向内部支撑构件306的第一侧(例如，上侧)上的第一凹槽318。并且纵向内部支撑构件306连接至两个横向外部支撑构件308和310。还如图3B所示，第一孔316与第一凹槽318接合，使得横向内部支撑构件304与纵向内部支撑构件306接合。在一些实施方式中，第一孔316与第一凹槽318接合，其中第一孔316与第一凹槽318互锁。将 横向内部支撑构件304与纵向内部支撑构件306互锁可以增强框架300的结构并增加其刚度。
在一些实施方式中，如下面参考图5C-5D进一步解释的，横向内部支撑构件304可以包括附加的孔，以进一步减小横向内部支撑构件304的重量。纵向内部支撑构件306还可以包括附加的孔，以减小纵向内部支撑构件306的重量。在一些实施方式中，如下面参考图6A-6D进一步解释的，第一孔316也可以配置成与两个纵向外部支撑构件312和314接合。凹槽318也可以配置成与两个横向外部支撑构件308和310接合。
图4A-4C示出了根据本公开的实施例的横向内部支撑构件402与纵向内部支撑构件404接合的示例性方式。在一些实施方式中，横向内部支撑构件402可以对应于横向内部支撑构件304，并且纵向内部支撑构件404可以对应于以上在图3A-3B中描述的纵向内部支撑构件306。在一些实施方式中，如图4A-4B所示，纵向内部支撑构件404可以插入到横向内部支撑构件402的孔406中，使得凹槽408对准孔406。如图4B-4C所示，纵向内部支撑构件404接着可以转动一定角度(例如90°)以与横向内部支撑构件402接合，其中孔406与凹槽408互锁。
图5A-5D各自示出了根据本公开的实施例的示例性横向内部支撑构件和示例性纵向内部支撑构件。在一些实施方式中，如图5A所示，横向内部支撑构件502a包括孔506a，以实现与纵向内部支撑构件504a接合。孔506a可以对应于图3A-3B所示的第一孔316。纵向内部支撑构件504a包括在纵向内部支撑构件504a的第一侧(例如，上侧)上的凹槽508a。凹槽508a可以对应于图3A-3B中示出的第一凹槽318。
在一些实施方式中，如图5B所示，纵向内部支撑构件504b还包括在纵向内部支撑构件504b的第二侧(例如，底侧)上的第二凹槽510b，该第二侧平行于纵向内部支撑构件504b的第一侧(例如，上侧)。孔506b与第一侧上的凹槽508b和第二侧上的第二凹槽510b接合。在一些实施方式中，孔506b可以对应于图3A-3B所示的第一孔316。凹槽508b可以对应于如图3A-3B所示的第一凹槽318。
在一些实施方式中，如图5C-5D所示，横向内部支撑构件502c可以包括一个或多个第二孔512c，该一个或多个第二孔被配置为减小横向内部支撑构件502c的重量。纵向内部支撑构件504d还可以包括一个或多个第三孔514d，该一个或多个第三孔被配置为减小纵向内部支撑构件504d的重量。
图6A-6B示出了根据本公开的实施例的具有包括板条的矩形外部支撑结构的示例性框架。图6B示出了图6A中的画圈部分的放大示意图。框架600a的矩形外部支撑结构602a包括两个横向外部支撑构件604a和606a以及两个纵向外部支撑构件608a和610a。在一些 实施方式中，两个横向外部支撑构件604a和606a中的至少一个或两个纵向外部支撑构件608a和610a中的至少一个包括一个或多个板条。例如，如图6A-6B所示，横向外部支撑构件604a可以包括板条612a，并且纵向外部支撑构件608a可以包括一对板条614a和616a。
在一些实施方式中，如图6C-6D所示，至少一个板条(例如，形成横向外部支撑构件604c的板条)包括弯曲板条612c，配置成增强矩形外部支撑结构的强度。在其它实施方式中，两个纵向外部支撑构件608c、610c也可以由弯曲板条形成。
图7A-7F示出了根据本公开的实施例的包括在矩形外部支撑结构上的暴露的槽口的示例性框架。在一些实施方式中，矩形外部支撑结构的两个横向外部支撑构件中的至少一个或两个纵向外部支撑构件中的至少一个包括暴露的槽口，该槽口被配置为连接至设备(例如，泥浆振动筛)或另一振动筛筛网。
在一些实施方式中，如图7A-7B所示，矩形外部支撑结构710a可以包括一对L形槽口712a和714a。图7B示出了图7A中的画圈部分的放大示意图。L形槽口712a可以形成在由矩形管构成的纵向外部支撑构件706a上。如图7B所示，L形槽口712a的两端可以用金属板716a密封(另一个金属板未示出)。
在一些实施方式中，如图7C-7D所示，矩形外部支撑结构710c可以包括一对C形槽口712c和714c。图7D示出了图7C中的画圈部分的放大示意图。C形槽口712c可以形成在由矩形管构成的纵向外部支撑构件706c上。如图7D所示，C形槽口712c的两端用金属板716c密封(另一个金属板未示出)。
在其它实施方式中，如图7E-7F所示，矩形外部支撑结构710e可以包括多个槽口712e。槽口712e可以形成在由弯曲板条构成的横向外部支撑构件702e上。
在其它实施方式中，矩形外部支撑结构可以包括配置成固定至设备(例如泥浆振动筛)或另一振动筛筛网的装置，诸如槽口、互锁接头、粘结结构、夹持结构、夹紧结构或挂钩结构等。
图8A-8B示出了根据本公开的实施例的两个示例性振动筛筛网之间的示例性连接。在一些实施方式中，第一振动筛筛网802和第二振动筛筛网804各自都可以包括槽口806和808以及在振动筛筛网802和804的相对侧上的钩810和812。通过将第二振动筛筛网804上的钩812固定至第一振动筛筛网802上的槽口806，第一振动筛筛网802可以与第二振动筛筛网804耦接。
图9是示出了根据本公开的实施例的形成用于振动筛筛网的框架300的方法900的流程图。在一些实施方式中，在方框902处，方法900包括提供包括两个横向外部支撑构件308和310以及两个纵向外部支撑构件312和314的矩形外部支撑结构302。在方框904处， 方法900包括提供包括第一孔316的至少一个横向内部支撑构件304。在方框906处，方法900包括提供至少一个纵向内部支撑构件306，该至少一个纵向内部支撑构件包括在至少一个纵向内部支撑构件306的第一侧(例如，上侧)上的第一凹槽318。在方框908处，方法900包括通过使第一孔316与第一凹槽318互锁而使至少一个横向内部支撑构件304与至少一个纵向内部支撑构件306接合。在方框910处，方法900包括将至少一个横向内部支撑构件304和至少一个纵向内部支撑构件306连接至矩形外部支撑结构302，以形成用于振动筛筛网的框架300。
在一些实施方式中，在方框902处，可以首先形成矩形外部支撑结构302的一部分。例如，连接两个横向外部支撑构件308和310以及一个纵向外部支撑构件312(或314)，以首先形成矩形外部支撑结构302的C形部分。矩形外部支撑结构302的其余部分(例如，纵向外部支撑构件314(或312))可以在方框908或910的步骤之后完成。
受益于在前述描述和相关附图中呈现的教导，本公开所属领域的技术人员将想到本文阐述的本公开的许多修改和其它实施方式。因此，应当理解，本公开不限于所公开的具体实施方式，并且修改和其它实施方式旨在被包括在所附权利要求的范围内。此外，虽然前面的描述和相关附图在元件和/或功能的某些示例性组合的上下文中描述了实施例，但是应当理解，在不脱离所附权利要求的范围的情况下，可以通过替代实施方式来提供元件和/或功能的不同组合。在这方面，例如，与上文明确描述的那些不同的元件和/或功能的组合也被预期为可以在所附权利要求中的一些中阐述。尽管在此使用了特定术语，但是它们仅在一般和描述性意义上使用，而不是为了限制的目的。

Claims (10)

  1. 一种筛网的框架，包括：
    矩形外部支撑结构，包括两个横向外部支撑构件和两个纵向外部支撑构件；
    至少一个横向内部支撑构件，与所述两个纵向外部支撑构件耦接；以及
    至少一个纵向内部支撑构件，与所述两个横向外部支撑构件耦接；
    其特征在于：所述至少一个横向内部支撑构件包括第一孔，所述至少一个纵向内部支撑构件包括在所述至少一个纵向内部支撑构件的第一侧上的第一凹槽，其中，所述第一孔与所述第一凹槽接合，使得所述至少一个横向内部支撑构件与所述至少一个纵向内部支撑构件接合。
  2. 根据权利要求1所述的框架，其特征在于：所述至少一个纵向内部支撑构件还包括在所述至少一个纵向内部支撑构件的第二侧上的第二凹槽，其中，所述第二侧平行于所述第一侧，并且，所述第一孔与所述第一凹槽和所述第二凹槽接合。
  3. 根据权利要求1所述的框架，其特征在于：所述至少一个横向内部支撑构件包括一个或多个第二孔，配置成减少所述至少一个横向内部支撑构件的重量；或者所述至少一个纵向内部支撑构件包括一个或多个第三孔，配置成减小所述至少一个纵向内部支撑构件的重量。
  4. 根据权利要求1所述的框架，其特征在于：所述第一孔与所述第一凹槽互锁。
  5. 根据权利要求1所述的框架，其特征在于：所述两个横向外部支撑构件或所述两个纵向外部支撑构件中的至少一个包括一个或多个板条。
  6. 根据权利要求5所述的框架，其特征在于：所述一个或多个板条中的至少包括一个弯曲的板条，配置成增强所述矩形外部支撑结构的强度。
  7. 根据权利要求1所述的框架，其特征在于：所述矩形外部支撑结构包括配置成将所述筛网固定在设备或另一筛网上的装置。
  8. 一种筛网，包括：如权利要求1-7中任一项所述的框架，以及由所述框架支撑的至少一个筛层，配置成筛分材料。
  9. 一种形成筛网的框架的方法，包括：
    提供矩形外部支撑结构，所述矩形外部支撑结构包括两个横向外部支撑构件和两个纵向外部支撑构件；
    提供至少一个横向内部支撑构件；
    提供至少一个纵向内部支撑构件；以及
    将所述至少一个横向内部支撑构件和所述至少一个纵向内部支撑构件连接至所述矩形外部支撑结构，以形成所述筛网的框架，
    其特征在于：所述至少一个横向内部支撑构件包括第一孔，所述至少一个纵向内部支撑构件包括在所述至少一个纵向内部支撑构件的第一侧上的第一凹槽，所述方法还包括通过将所述第一孔与所述第一凹槽接合，使所述至少一个横向内部支撑构件与所述至少一个纵向内部支撑构件接合。
  10. 一种系统，包括：振动筛以及筛网，所述筛网可拆卸地安装至所述振动筛上，其中，所述筛网包括如权利要求1-7中任一项所述的框架，以及由所述框架支撑的至少一个筛层，配置成筛分材料。
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