CN218608362U

CN218608362U - Screen mesh structure of drilling fluid vibrating screen

Info

Publication number: CN218608362U
Application number: CN202223170381.7U
Authority: CN
Inventors: 汪鸿
Original assignee: Jingzhou Xiangsheng Petroleum Machinery Co ltd
Current assignee: Jingzhou Xiangsheng Petroleum Machinery Co ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-03-14
Anticipated expiration: 2032-11-29

Abstract

The utility model discloses a screen mesh structure of a drilling fluid vibrating screen, which comprises a screen mesh frame and a screen mesh connected with the screen mesh frame, wherein the screen mesh frame comprises a frame body, a sealing strip and a locking piece; the frame body is of a semi-closed frame structure, a first embedded groove is formed in the inner side wall of the frame structure along the path direction of the frame structure, and one end of the screen mesh slides into the frame structure from a notch of the frame structure so that the edge part of the screen mesh is embedded in the first embedded groove; a second embedding groove is formed in one side of the sealing strip along the length direction of the sealing strip, the sealing strip is connected to the notch of the frame structure for sealing, and the rest part of the edge of the screen mesh is embedded in the second embedding groove; the two locking pieces are correspondingly connected between two ends of the frame structure and two ends of the sealing strip in a sliding manner one by one to lock or unlock; compared with the prior art, the utility model, simple structure conveniently assembles and the split.

Description

Screen mesh structure of drilling fluid vibrating screen

Technical Field

The utility model relates to a screen cloth technical field, concretely relates to drilling fluid shale shaker screen cloth structure.

Background

The drilling fluid vibrating screen is the first stage of equipment in the solid control equipment, and the use effect of the vibrating screen directly influences the work efficiency of the subsequent stages of solid control equipment and directly influences the underground working condition of drilling engineering. Compared with the last stage of solid control equipment, the solid control equipment has the advantages of full-overflowing property, high efficiency, energy conservation and decisive property for a solid control treatment system. The work efficiency of the vibrating screen can be influenced by the fast replacement and the firm degree of the compaction of the screen cloth. The compression mode adopted by the fast-assembling screen (frame screen) of the existing drilling fluid vibrating screen is wedge-shaped block compression, workers need to use a hammer to knock the wedge-shaped block in a screen box to compress or loosen the screen, and can finish compression or loosening by knocking for multiple times, so that the working difficulty of the workers is increased, and the working efficiency is reduced.

The patent document with application number CN201520730021.9 discloses a quick screen cloth hold-down mechanism of shale shaker, including the screen cloth briquetting with be used for controlling the regulation hold-down element of briquetting, the screen cloth briquetting is located the regulation hold-down element front end, adjusts the hold-down element and wears on sieve case boxboard, screen cloth briquetting lower extreme pressure is on being located the sieve incasement sieve screen cloth, it includes eccentric shaft, cam, fixed cover and nut to adjust the hold-down element, the cam is fixed to be set up in the eccentric shaft front portion, and fixed ways is put on the eccentric shaft and is located the cam rear.

The screen is installed and fixed by adopting the matching of the eccentric shaft, the cam, the fixed sleeve, the nut and other structures, and the structure is relatively complex and the cost is higher.

SUMMERY OF THE UTILITY MODEL

To the not enough that exists among the prior art, the utility model aims to provide a drilling fluid shale shaker screen cloth structure to in solving prior art, adopt the cooperation of eccentric shaft, cam, fixed cover and nut isotructure to install the screen cloth fixedly, its structure is complicated relatively, this problem of cost is higher.

In order to achieve the above purpose, the utility model adopts the following technical proposal: the utility model provides a drilling fluid shale shaker screen cloth structure, includes screen frame and the screen cloth that links to each other with the screen frame, the screen frame includes:

the frame body is of a semi-closed frame structure, a first embedding groove is formed in the inner side wall of the frame structure along the path direction of the frame structure, and one end of the screen mesh slides into the frame structure from a notch of the frame structure so that the edge part of the screen mesh is embedded in the first embedding groove;

a second embedding groove is formed in one side of the sealing strip along the length direction of the sealing strip, the sealing strip is connected to the notch of the frame structure for sealing, and the rest part of the edge of the screen mesh is embedded in the second embedding groove;

the locking piece, the locking piece has two and one-to-one sliding connection and comes locking or unblock between frame construction's both ends and the both ends of sealing the strip.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the screen frame of the drilling fluid vibrating screen is designed to be mainly composed of the frame body, the sealing strip and the two locking pieces, can be matched with the screen to stably install the screen, is simple in structure, reasonably utilizes the structure of the screen frame and reduces the cost; after the two locking pieces are unlocked, the sealing strip is taken down, so that the screen mesh can be moved out of the frame body, and the screen mesh is convenient to disassemble;

2. the first groove of establishing and the second inlays that establishes in the groove makes the leakproofness of being connected between screen cloth and the screen cloth frame good in the screen cloth edge embedding, and puts up the body and formed a cofferdam in the screen cloth outside, avoids carrying out the vibratory screening in-process to the drilling fluid, and the drilling fluid takes place the overflow from the screen cloth edge.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a partial sectional view taken along line B-B of fig. 1.

Reference numerals in the drawings of the specification include: the screen frame 1, the frame body 11, the sealing strip 12, the locking piece 13, the locking sleeve 131, the elastic support member 132, the limiting block 133, the screen 2, the screen body 21, the annular water retaining strip 22, the first arc-shaped protrusion 23, the buffer cavity 24 and the second arc-shaped protrusion 25.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments:

as shown in fig. 1, an embodiment of the present invention provides a screen mesh structure of a drilling fluid vibrating screen, including a screen mesh frame 1 and a screen mesh 2 connected to the screen mesh frame 1, where the screen mesh frame 1 includes a frame body 11, a sealing strip 12 and a locking piece 13;

the frame body 11 is a semi-closed frame structure, a first embedding groove is formed in the inner side wall of the frame structure along the path direction of the frame structure, and after one end of the screen 2 slides into the frame structure from a notch of the frame structure, the edge part of the screen 2 is embedded into the first embedding groove;

a second embedding groove is formed in one side of the sealing strip 12 along the length direction of the sealing strip, the sealing strip 12 is connected to the notch of the frame structure for sealing, and the rest part of the edge of the screen 2 is embedded in the second embedding groove;

the locking pieces 13 are two and are in one-to-one correspondence sliding connection between the two ends of the frame structure and the two ends of the sealing strip 12 to lock or unlock.

According to the screen mesh structure of the drilling fluid vibrating screen, the screen mesh frame 1 is mainly designed to be composed of the frame body 11, the sealing strips 12 and the two locking pieces 13, and can be matched with the screen mesh 2 to stably mount the screen mesh 2, so that the structure is simple, the structure of the screen mesh frame 1 is reasonably utilized, and the cost is reduced; after the two locking pieces 13 are unlocked, the sealing strip 12 is taken down, so that the screen 2 can be moved out of the frame body 11, and the screen is convenient to disassemble; the first groove of establishing of inlaying of 2 edges of screen cloth and the second inlays and establishes the inslot and makes the leakproofness of being connected between screen cloth 2 and the screen frame 1 good, and frame body 11 has formed a cofferdam in the screen cloth 2 outside, avoids carrying out the vibratory screening in-process to drilling fluid, and the drilling fluid takes place the overflow from 2 edges of screen cloth.

Specifically, in this embodiment: the frame body 11 and the sealing strip 12 are spliced to form a square frame structure, the sealing strip 12 is located on one side edge of the square frame structure, so that one end of the screen 2 can slide into the frame body 11 from a notch to enable the edge part of the screen 2 to be embedded into the first embedding groove, the rear sealing strip 12 is spliced at the notch of the frame body 11 to form the square frame structure, the rest part of the edge of the screen 2 is embedded into the second embedding groove, the screen 2 is installed in the square frame structure, and the two locking pieces 13 are slid to enable the sealing strip 12 to be fixedly connected to the frame body 11 so as to stably install the screen 2; the screen 2 is a square net matched with the square frame structure in size; when the screen cloth 2 is detached, the two locking pieces 13 slide reversely to enable the two locking pieces 13 to slide to the frame structure from the connecting position of the frame structure and the sealing strip 12, at the moment, the locking pieces 13 are unlocked, the sealing strip 12 can be taken down, and then the screen cloth 2 is moved out.

As shown in fig. 1 and 2, according to another embodiment of the present invention, the screen structure of the drilling fluid vibrating screen is provided, wherein each locking member 13 comprises a locking sleeve 131 and an elastic supporting member 132;

the locking sleeve 131 is slidably arranged between one end of the frame structure and one end of the sealing strip 12;

the elastic supporting member 132 is connected between one end of the locking sleeve 131 and the frame structure, and is used for enabling the other end of the locking sleeve 131 to slide to one end of the frame structure to be unlocked or slide to one end of the sealing strip 12 to be locked.

Here: the adopted locking sleeves 131 are all U-shaped, and the locking sleeves 131 are slidably sleeved between the outer side of one end of the frame structure and one end of the sealing strip 12; the elastic support 132 may be an elastic telescopic rod. When the locking sleeve 131 is moved in a direction approaching the elastic support 132 and the elastic support 132 is contracted, the free end of the locking sleeve 131 moves from one end of the sealing strip 12 to the outside of one end of the frame structure, the locking member 13 releases the locking between the sealing strip 12 and the frame structure, and the sealing strip 12 can be removed from the notch of the frame structure. When the screen 2 is assembled again and the sealing strip 12 is assembled again in the gap of the frame structure, the elastic supporting members 132 in the two locking members 13 are released, at this time, the two elastic supporting members 132 make the two locking sleeves 131 move towards the outer side of the sealing strip 12, and the two locking sleeves 131 are sleeved between the outer sides of the two ends of the frame structure and the two ends of the sealing strip 12 in a one-to-one correspondence manner to lock the sealing strip 12.

Further, each adopted locking piece 13 further comprises a limiting block 133, and the limiting block 133 is fixedly connected to the middle of the sealing strip 12 and located on a moving path of the locking sleeve 131.

The limiting blocks 133 limit the movement of the locking sleeves 131 to the outside of the sealing strip 12, so that the two locking sleeves 131 are stably sleeved between the outside of the two ends of the frame structure and the two ends of the sealing strip 12 in a one-to-one correspondence manner, and the sealing strip 12 is locked.

As shown in fig. 1 and 3, according to another embodiment of the present invention, the screen mesh structure of the drilling fluid vibrating screen, wherein the screen mesh 2 includes a screen mesh body 21, and an annular water bar 22 is arranged on a filtering surface of the screen mesh body 21 along a circumferential direction thereof; after the edge of the screen body 21 is embedded into the first embedding groove and the second embedding groove, the outer side of the annular water retaining strip 22 is attached to the frame structure and the sealing strip 12.

Here, the annular water bar 22 forms a barrier outside the filtering surface of the screen cloth body 21 on one hand, and when the screen cloth 2 filters the drilling fluid, the drilling fluid is prevented from overflowing to the edge of the screen cloth 2; another convenience comes the sealing performance that further improves the assembly between screen cloth 2 and the frame body 11, avoids in the drilling fluid immerses the junction between screen cloth 2 and the frame body 11.

In order to optimize the screen body 21, a plurality of first arc-shaped protrusions 23 are uniformly distributed in the middle of the filtering surface of the adopted screen body 21, a buffer cavity 24 is formed in the screen body 21, and a plurality of second arc-shaped protrusions 25 are uniformly distributed at the bottom of the inner wall of the buffer cavity 24.

When the vibrating screen driving frame body 11 drives the screen 2 to vibrate, the first arc-shaped protrusions 23 can prolong the retention time of the drilling fluid in the middle of the filtering surface of the screen body 21, so that the screening efficiency is improved, and the drilling fluid is prevented from overflowing to the edge of the screen body 21; can cache the drilling fluid after partly filtering in the buffer memory chamber 24 simultaneously, this drilling fluid produces the collision with a plurality of second arc archs 25, can strengthen the degree of rolling of this drilling fluid in buffer memory chamber 24, can play the effect of erodeing to the mesh on the screen cloth body 21, can improve screen cloth 2's filtration efficiency.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a drilling fluid shale shaker screen cloth structure, includes screen frame and the screen cloth that links to each other with the screen frame, its characterized in that, the screen frame includes:

the locking piece, the locking piece has two and one-to-one sliding connection and comes the locking or unblock between frame construction's both ends and the both ends of sealing the strip.

2. The drilling fluid vibrating screen mesh structure of claim 1, wherein: each of the lock members includes:

the locking sleeve is arranged between one end of the frame structure and one end of the sealing strip in a sliding mode;

and the elastic support piece is connected between one end of the locking sleeve and the frame structure and used for enabling the other end of the locking sleeve to slide to one end of the frame structure to be unlocked or slide to one end of the sealing strip to be locked.

3. The drilling fluid vibrating screen mesh structure of claim 2, wherein: each of the lock members further includes:

and the limiting block is fixedly connected to the middle part of the sealing strip and is positioned on a moving path of the locking sleeve.

4. A drilling fluid shaker screen construction as claimed in claim 2 or 3, wherein: the locking sleeve is U-shaped, and the locking sleeve is slidably sleeved between the outer side of one end of the frame structure and one end of the sealing strip.

5. The drilling fluid vibrating screen mesh structure of claim 1, wherein: the screen includes:

the water screen comprises a screen body, wherein an annular water retaining strip is arranged on the filtering surface of the screen body along the circumferential direction of the filtering surface; after the edge of the screen body is embedded into the first embedding groove and the second embedding groove, the outer side of the annular water retaining strip is attached to the frame structure and the sealing strip.

6. The drilling fluid vibrating screen mesh structure of claim 5, wherein: the filter surface middle part evenly distributed of screen cloth body has a plurality of first arc archs, and this internal division of screen cloth has the buffer memory chamber, and buffer memory intracavity wall bottom equipartition has a plurality of second arc archs.