CN114522461B - Screen sealing device of vibrating screen - Google Patents
Screen sealing device of vibrating screen Download PDFInfo
- Publication number
- CN114522461B CN114522461B CN202210117267.3A CN202210117267A CN114522461B CN 114522461 B CN114522461 B CN 114522461B CN 202210117267 A CN202210117267 A CN 202210117267A CN 114522461 B CN114522461 B CN 114522461B
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- sealing strip
- screen
- sealing
- rubber
- rubber sealing
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- 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
- B01D33/0353—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 self-supporting
-
- 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
- B01D33/80—Accessories
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention aims to provide a vibrating screen mesh sealing device, and belongs to the technical field of material vibrating screening equipment. The sieve bed comprises rubber sealing strips and a screen support plate which are transversely distributed along the sieve bed, wherein sealing strip fixing plates which are matched with the sieve support plate are arranged above the screen support plate, the sealing strip fixing plates are connected onto the screen support plate through bolt assemblies, and the rubber sealing strips are clamped onto the sealing strip fixing plates. According to the invention, through the arrangement of the detachable sealing strip fixing plate, after the sealing strip fixing plate is worn, only the sealing strip fixing plate needs to be replaced, so that the technical problem that the whole sieve bed can only be replaced after the existing screen support plate is worn is solved, and the sieve bed has the advantages of simple structure, convenience in disassembly and assembly and low cost.
Description
Technical Field
The invention relates to the technical field of material vibration screening equipment, in particular to a screen sealing device of a vibrating screen.
Background
The drilling fluid vibrating screen is first-stage solid control equipment in a drilling mud solid-phase control system, processes and separates a large amount of drilling cuttings carried by mud when the mud returns from a shaft so that the mud enters second-stage separation equipment, and a sealing structure is arranged between a screen and a screen bed and is used for blocking particulate impurities in the screen box into the screen box which is bounded by the screen bed and the screen.
At present, sealing between a screen mesh and a screen bed of a vibrating screen is realized by adopting a rubber sealing strip to be connected with a screen mesh supporting plate in a clamping manner in the transverse direction of the screen bed. After the vibrating screen works for a period of time, the rubber sealing strips and the screen support plates are worn, and as the two ends of the screen support plates are welded and connected to the two side plates of the screen bed, that is, the screen support plates and the screen bed are of an integral structure, the screen support plates cannot be replaced after being worn, and only the whole screen bed can be replaced, so that the operation cost is greatly increased; in addition, since the screen mesh on the screen mesh supporting plate in the transverse direction of the screen mesh is not provided with the screen mesh pressing device, in particular to the screen mesh of the arc screen mesh supporting plate structure, in the vibration process, as the sealing strips are clamped on the screen mesh supporting plate at intervals, the two ends of the sealing strips are easy to warp upwards to separate from the screen mesh supporting plate, so that the sealing strips and the screen mesh contact surface are not tightly sealed, and sand leakage occurs.
The vertical direction in sieve bed both sides adopts rubber seal strip and sealing strip draw-in groove joint to be connected mostly, the screen cloth compresses tightly the screen cloth through screen cloth closing device, chinese patent CN214425098U as applicant's 9 month and 27 days application discloses a wear-resisting joint strip, it is through setting up dacron cloth in order to increase its structural strength in the adhesive tape body, the structural strength of adhesive tape body has obtained promoting by a wide margin, the life of joint strip has been prolonged, and still screen cloth closing device compresses tightly the screen cloth, but after the long-term work of shale shaker, inevitably lead to wearing and tearing between sealing strip and the sealing strip draw-in groove, owing to draw-in groove welded connection is on sieve box curb plate or sieve bed, unable change after the draw-in groove wearing and tearing, can only change whole sieve bed, even change whole sieve box, the operation cost has greatly been increased.
Disclosure of Invention
The invention aims to provide a vibrating screen sealing device with a simple structure and low cost, which is characterized in that a detachable sealing strip fixing plate is arranged, a rubber sealing strip is clamped on the sealing strip fixing plate, and only the sealing strip fixing plate needs to be replaced after the sealing strip fixing plate is worn, so that the technical problem that the whole screen bed can only be replaced after the existing screen supporting plate is worn is solved.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a shale shaker screen cloth sealing device, includes along the rubber sealing strip and the screen cloth backup pad of the horizontal distribution of sieve bed, the top of screen cloth backup pad is equipped with the sealing strip fixed plate rather than the adaptation, the sealing strip fixed plate passes through bolt assembly to be connected in the screen cloth backup pad, and rubber sealing strip joint is on the sealing strip fixed plate.
As an improvement of the invention, the sealing strip fixing plate is a cuboid plate, and at least two stepped holes for installing bolt assemblies are formed along the length direction of the sealing strip fixing plate; the bolt assembly includes a countersunk screw and a nut.
As an improvement of the invention, the rubber sealing strip is of an inverted U-shaped structure, two sides of the opening at the lower part of the rubber sealing strip are respectively provided with a clamping part, and the rubber sealing strip is clamped on the sealing strip fixing plate through the clamping parts.
As an improvement of the invention, the top surface of the rubber sealing strip is an arc-shaped surface, and the opening is in an inverted trapezoid shape.
As an improvement of the invention, the screen sealing device further comprises rubber sealing strips and sealing strip clamping grooves which are longitudinally distributed along two sides of the screen bed, a sealing strip fixing plate which is matched with the sealing strip clamping grooves is arranged above the sealing strip clamping grooves, the sealing strip fixing plate is connected to the sealing strip clamping grooves through a bolt assembly, and the rubber sealing strips are clamped on the sealing strip fixing plate.
As an improvement of the invention, the sealing strip clamping groove is a cuboid plate, and at least two stepped holes for installing bolt components are formed along the length direction of the sealing strip clamping groove; the bolt assembly includes a countersunk screw and a nut.
As an improvement of the invention, the rubber sealing strip is of an inverted U-shaped structure, two sides of the opening at the lower part of the rubber sealing strip are respectively provided with a clamping part, and the rubber sealing strip is clamped on the sealing strip clamping groove through the clamping parts.
As an improvement of the invention, the top surface of the rubber sealing strip is an arc-shaped surface, and the opening is in an inverted trapezoid shape.
The beneficial effects of the invention are as follows: the invention provides a vibrating screen mesh sealing device which comprises rubber sealing strips and a screen mesh supporting plate, wherein the rubber sealing strips and the screen mesh supporting plate are transversely distributed along a screen bed, a sealing strip fixing plate matched with the screen mesh supporting plate is arranged above the screen mesh supporting plate, the sealing strip fixing plate is connected to the screen mesh supporting plate through a bolt assembly, and the rubber sealing strips are clamped on the sealing strip fixing plate. Through the design, in the working process of the vibrating screen, the rubber sealing strip only generates friction with the sealing strip fixing plate, when the sealing strip fixing plate cannot be used continuously after being worn, the sealing strip fixing plate only needs to be detached from the screen support plate, and the new sealing strip fixing plate can be replaced for continuous use, and as the rubber sealing strip is not in direct contact with the screen support plate, the screen support plate cannot be affected, and the technical problem that in the prior art, only the whole screen bed can be replaced after the screen support plate is worn is solved; in addition, because the whole joint of rubber sealing strip is in the screen cloth backup pad, the phenomenon of upwarping can not take place at sealing strip both ends, has reduced the probability that the hourglass sand phenomenon takes place, simple structure, easy dismounting, low cost.
Further, the sealing strip fixing plate is a cuboid plate, and at least two stepped holes for installing the bolt assembly are formed along the length direction of the sealing strip fixing plate; the bolt assembly includes a countersunk screw and a nut. The sealing strip fixing plate is connected to the screen support plate through countersunk screws and nuts, and is stable in structure and convenient to assemble and disassemble.
Further, the rubber sealing strip is of an inverted U-shaped structure, clamping parts are respectively arranged on two sides of an opening at the lower part of the rubber sealing strip, and the rubber sealing strip is clamped on the sealing strip fixing plate through the clamping parts. Through designing into the structure of falling U type with the sealing strip, processing is convenient, and the installation is swift.
Further, the top surface of the rubber sealing strip is an arc-shaped surface, and the opening is in an inverted trapezoid shape. By designing the top surface of the rubber sealing strip into an arc-shaped surface, compared with a sealing strip with a plane top surface, the sealing strip has small contact surface with a screen, and generates slightly larger deformation under the same pressure, so that the sealing performance is ensured, the wear resistance is enhanced, and the sand leakage phenomenon is not easy to occur; through designing into the shape of falling trapezoidal structure with the open-ended, make rubber sealing strip and sealing strip fixed plate connect more firmly, the sealing strip is difficult for droing.
Further, the screen sealing device further comprises a rubber sealing strip and a sealing strip clamping groove which are longitudinally distributed along two sides of the screen bed, a sealing strip fixing plate which is matched with the sealing strip clamping groove is arranged above the sealing strip clamping groove, the sealing strip fixing plate is connected onto the sealing strip clamping groove through a bolt assembly, and the rubber sealing strip is clamped onto the sealing strip fixing plate. Because the design of the rubber sealing strip and the sealing strip clamping groove is similar to the design of the rubber sealing strip and the screen support plate, the sealing strip and the screen support plate have corresponding beneficial effects, and the description can be specifically referred to in the previous description, and the details are not repeated.
Drawings
FIG. 1 is a schematic view of a vibrating screen bed according to an embodiment of the present invention mounted on a side panel of a screen box;
FIG. 2 is a schematic view of a partial cross-sectional view of the screen sealing apparatus of FIG. 1 shown transversely across the screen bed;
FIG. 3 is a schematic structural view of a sealing strip fixing plate according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a schematic view of a rubber sealing strip according to an embodiment of the present invention;
fig. 6 is a schematic view of a partial cross-sectional structure of a screen sealing apparatus according to a second embodiment of the present invention, which is longitudinally distributed along a screen bed.
In the figure, 1, a screen compressing mechanism; 2. a screen; 3. a screen sealing device; 31. a sealing strip; 311. an engagement portion; 312. an introduction unit; 32. a sealing strip fixing plate; 33. a bolt assembly; 4. a screen support plate; 5. a screen box side plate; 6. sealing strip draw-in groove.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
It should be noted that, in the embodiments of the present invention, terms such as up, down, left, right, etc. are merely relative concepts or references to normal use states of the product, and should not be construed as limiting.
Embodiment one:
as shown in fig. 1, fig. 1 is a schematic structural diagram of a vibrating screen bed installed on a lateral plate 5 of a screen box, a screen 2 is arranged above a screen sealing device 3, two sides of the screen 2 are respectively pressed by a screen pressing mechanism 1, a screen supporting plate 4 is arranged below the screen sealing device 3, and two sides of the screen bed are respectively installed on the lateral plate 5 of the screen box. Since the above structures are known in the art, they will not be described in detail here.
As shown in fig. 2, a screen sealing device for a vibrating screen comprises rubber sealing strips 31, sealing strip fixing plates 32 and screen support plates 4 which are distributed transversely along a screen bed. The sealing strip fixed plate 32 is arranged above the screen support plate 4 and is connected to the screen support plate 4 through a bolt assembly 33, a through hole matched with the bolt assembly 33 is formed in the screen support plate 4, and the rubber sealing strip 31 is clamped on the sealing strip fixed plate 32.
As shown in fig. 3 and 4, the sealing strip fixing plate 32 is a rectangular plate, and is provided with at least two stepped holes for mounting the bolt assemblies 33 along its length direction; the bolt assembly 33 includes a countersunk screw and a nut. During connection, the countersunk head screw sequentially penetrates through the stepped hole and the through hole in the screen support plate 4, the head of the countersunk head screw falls into the large hole in the upper portion of the stepped hole, then the nut is screwed down, and the sealing strip fixing plate 32 and the screen support plate 4 are connected together, so that the structure is simple, and the dismounting is convenient.
As shown in fig. 5, the rubber sealing strip 31 has an inverted U-shaped structure, and two sides of the lower opening thereof are respectively provided with a clamping portion 311, and the rubber sealing strip 31 is clamped on the sealing strip fixing plate 32 through the clamping portions 311.
Preferably, the top surface of the rubber weather strip 31 is an arc surface, and the lower opening thereof is shaped as an inverted trapezoid. By designing the top surface of the rubber sealing strip 31 into an arc surface, compared with a sealing strip with a plane top surface, the contact surface of the sealing strip and a screen is small, and the deformation is slightly large under the same pressure, so that the tightness is ensured, the wear resistance is enhanced, and the sand leakage phenomenon is not easy to occur; through designing into the shape of falling trapezoidal structure with rubber sealing strip 31 lower part open-ended, make rubber sealing strip 31 and sealing strip fixed plate 32 be connected more firmly, sealing strip 31 is difficult for droing.
Preferably, in order to enable the rubber weather strip 31 and the weather strip fixing plate 32 to be quickly clamped together, an introduction portion 312 is provided at the bottom of the lower opening of the weather strip 31, and the introduction portion 312 is an inclined surface.
Embodiment two:
as shown in fig. 6, a screen sealing device for a vibrating screen is different from the first embodiment in that: the first embodiment is the screen sealing device 3 distributed along the transverse direction of the screen bed, and the second embodiment is the screen sealing device 3 distributed along the longitudinal direction of the screen bed at the left and right sides of the screen bed, and the sealing performance of the screen 2 is further improved because the screen 2 in the embodiment is pressed by the screen pressing mechanism 1. In order to make the contents of this embodiment more explanatory, the following will be expressed in detail:
the screen sealing device 3 further comprises rubber sealing strips 31 and sealing strip clamping grooves 6 which are longitudinally distributed along two sides of the screen bed, sealing strip fixing plates 32 which are matched with the sealing strip clamping grooves are arranged above the sealing strip clamping grooves 6, the sealing strip fixing plates 32 are connected to the sealing strip clamping grooves 6 through bolt assemblies 33, through holes which are matched with the bolt assemblies 33 are formed in the sealing strip clamping grooves 6, and the rubber sealing strips 31 are clamped on the sealing strip fixing plates 32.
As shown in fig. 3 and 4, the sealing strip fixing plate 32 is a rectangular plate, and is provided with at least two stepped holes for mounting the bolt assemblies 33 along its length direction; the bolt assembly 33 includes a countersunk screw and a nut. During connection, the countersunk head screw sequentially penetrates through the stepped hole and the through hole in the sealing strip clamping groove 6, the head of the countersunk head screw falls into the large hole in the upper portion of the stepped hole, then the nut is screwed down, and the sealing strip fixing plate 32 and the sealing strip clamping groove 6 are connected together.
It should be noted that the structures of the rubber sealing strip 31 and the sealing strip fixing plate 32 are the same as those of the embodiment, and are not described here again.
The above is a detailed description of a sealing device for a screen of a vibrating screen, and specific examples are applied to illustrate the technical principles and embodiments of the present invention, and the above examples are only used to help understand the method and core ideas of the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.
Claims (8)
1. The utility model provides a shale shaker screen cloth sealing device, includes along the rubber sealing strip and the screen cloth backup pad of the horizontal distribution of sieve bed, its characterized in that: the top of screen cloth sealing device is the screen cloth, the top of screen cloth backup pad is equipped with the sealing strip fixed plate rather than the adaptation, the sealing strip fixed plate passes through the bolt assembly to be connected in the screen cloth backup pad, and rubber sealing strip joint is on the sealing strip fixed plate.
2. A vibrating screen mesh sealing apparatus as claimed in claim 1, wherein: the sealing strip fixing plate is a cuboid plate, and at least two stepped holes for installing bolt assemblies are formed along the length direction of the sealing strip fixing plate;
the bolt assembly includes a countersunk screw and a nut.
3. A vibrating screen mesh sealing apparatus as claimed in claim 1, wherein: the rubber sealing strip is of an inverted U-shaped structure, clamping parts are respectively arranged on two sides of an opening at the lower part of the rubber sealing strip, and the rubber sealing strip is clamped on the sealing strip fixing plate through the clamping parts.
4. A vibrating screen mesh sealing apparatus according to claim 3, wherein: the top surface of the rubber sealing strip is an arc-shaped surface, and the opening is in an inverted trapezoid shape.
5. A vibrating screen mesh sealing apparatus according to any one of claims 1 to 4, wherein: the screen sealing device further comprises rubber sealing strips and sealing strip clamping grooves which are longitudinally distributed along two sides of the screen bed, sealing strip fixing plates which are matched with the sealing strip clamping grooves are arranged above the sealing strip clamping grooves, the sealing strip fixing plates are connected onto the sealing strip clamping grooves through bolt assemblies, and the rubber sealing strips are clamped onto the sealing strip fixing plates.
6. A vibrating screen mesh sealing apparatus as recited in claim 5, wherein: the sealing strip clamping groove is a cuboid plate, and at least two stepped holes for installing the bolt assembly are formed along the length direction of the sealing strip clamping groove;
the bolt assembly includes a countersunk screw and a nut.
7. A vibrating screen mesh sealing apparatus as recited in claim 5, wherein: the rubber sealing strip is of an inverted U-shaped structure, clamping parts are respectively arranged on two sides of an opening at the lower part of the rubber sealing strip, and the rubber sealing strip is clamped on the sealing strip clamping grooves through the clamping parts.
8. A vibrating screen mesh sealing apparatus as recited in claim 7 wherein: the top surface of the rubber sealing strip is an arc-shaped surface, and the opening is in an inverted trapezoid shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210117267.3A CN114522461B (en) | 2022-02-08 | 2022-02-08 | Screen sealing device of vibrating screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210117267.3A CN114522461B (en) | 2022-02-08 | 2022-02-08 | Screen sealing device of vibrating screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114522461A CN114522461A (en) | 2022-05-24 |
| CN114522461B true CN114522461B (en) | 2023-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210117267.3A Active CN114522461B (en) | 2022-02-08 | 2022-02-08 | Screen sealing device of vibrating screen |
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| Country | Link |
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| CN (1) | CN114522461B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7919232U1 (en) * | 1979-07-04 | 1979-09-27 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Sealing between two stationary surfaces of a switch cabinet or the like |
| CN202844754U (en) * | 2012-10-18 | 2013-04-03 | 威尔达(抚顺)重工有限公司 | Inflating filter screen for cement tank for ship |
| CN207016622U (en) * | 2017-07-31 | 2018-02-16 | 尚勇 | A kind of water-treated filter tank |
| CN207238475U (en) * | 2017-08-25 | 2018-04-17 | 广汉市阿里圣姆石油设备有限公司 | A kind of screen of vibration screen for well drill liquid new type sealing device |
| CN208583067U (en) * | 2018-06-20 | 2019-03-08 | 中国石油集团渤海石油装备制造有限公司 | Vibrating screen mesh sealing structure |
| CN212775848U (en) * | 2020-08-01 | 2021-03-23 | 浙江宝丰阀门有限公司 | Magnetic lifting type sealing gate valve |
| WO2021184051A1 (en) * | 2020-03-16 | 2021-09-23 | Andritz Ag | Method for producing a screen body, and screen |
-
2022
- 2022-02-08 CN CN202210117267.3A patent/CN114522461B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7919232U1 (en) * | 1979-07-04 | 1979-09-27 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Sealing between two stationary surfaces of a switch cabinet or the like |
| CN202844754U (en) * | 2012-10-18 | 2013-04-03 | 威尔达(抚顺)重工有限公司 | Inflating filter screen for cement tank for ship |
| CN207016622U (en) * | 2017-07-31 | 2018-02-16 | 尚勇 | A kind of water-treated filter tank |
| CN207238475U (en) * | 2017-08-25 | 2018-04-17 | 广汉市阿里圣姆石油设备有限公司 | A kind of screen of vibration screen for well drill liquid new type sealing device |
| CN208583067U (en) * | 2018-06-20 | 2019-03-08 | 中国石油集团渤海石油装备制造有限公司 | Vibrating screen mesh sealing structure |
| WO2021184051A1 (en) * | 2020-03-16 | 2021-09-23 | Andritz Ag | Method for producing a screen body, and screen |
| CN212775848U (en) * | 2020-08-01 | 2021-03-23 | 浙江宝丰阀门有限公司 | Magnetic lifting type sealing gate valve |
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| Publication number | Publication date |
|---|---|
| CN114522461A (en) | 2022-05-24 |
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