CN210152583U - Tandem double-layer negative pressure vibrating screen - Google Patents
Tandem double-layer negative pressure vibrating screen Download PDFInfo
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- CN210152583U CN210152583U CN201920570526.1U CN201920570526U CN210152583U CN 210152583 U CN210152583 U CN 210152583U CN 201920570526 U CN201920570526 U CN 201920570526U CN 210152583 U CN210152583 U CN 210152583U
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Abstract
The utility model relates to a shale shaker technical field specifically is a double-deck negative pressure shale shaker of serial-type for it is little to solve current drilling fluid shale shaker handling capacity, and screen cloth life is short, and the high problem of exhaust detritus liquid content. The utility model discloses a shale shaker base, last reel and lower reel, go up the reel and be connected and be located the reel top down through stay tube and lower reel, go up the reel, laid coarse mesh screen cloth and fine mesh screen cloth through overspeed device tensioner on the reel down respectively, go up the reel and still install the vibration mechanism on the reel down, negative pressure mechanism is still installed to the reel bottom surface down. The utility model can increase the treatment capacity of rock debris through the upper screen frame and the lower screen frame; the coarse mesh screen is laid on the upper screen frame, and the fine mesh screen is laid on the lower screen frame, so that the service life of the fine mesh screen is greatly prolonged, and the cost is reduced; and a negative pressure mechanism is arranged on the bottom surface of the lower screen frame, and a negative pressure difference is formed on the fine mesh screen, so that the liquid content of the rock debris can be reduced.
Description
Technical Field
The utility model relates to a shale shaker technical field, more specifically relates to a serial-type double-deck negative pressure shale shaker.
Background
The vibrating screen works by utilizing reciprocating rotary type vibration generated by vibration excitation of the vibrator, the upper rotary heavy hammer of the vibrator enables the screen surface to generate plane rotary vibration, the lower rotary heavy hammer enables the screen surface to generate conical surface rotary vibration, and the screen surface generates complex rotary type vibration by the combined action effect of the upper rotary heavy hammer and the lower rotary heavy hammer; the vibration track is a complex space curve, the projection of the curve on the horizontal plane is a circle, and the projection on the vertical plane is an ellipse; the amplitude can be changed by adjusting the exciting force of the upper rotary heavy hammer and the lower rotary heavy hammer, and the spatial phase angle of the upper heavy hammer and the lower heavy hammer can change the curve shape of the motion trail of the screen surface and change the motion trail of materials on the screen surface, so that the materials needing to be screened can be screened, wherein the drilling fluid vibrating screen is a vibrating screen which is commonly used in the drilling technology.
The drilling fluid vibrating screen in the prior art comprises a screen frame, wherein a vibration exciter and a screen mesh are installed on the screen frame, the screen mesh is a single-layer screen mesh, the atmospheric pressure is formed above and below the screen face, and the penetrating flow of the drilling fluid is mainly realized by the inertia force generated by the vibrating motion of the screen face on the drilling fluid and the potential energy of the drilling fluid. In order to enable the drilling fluid to have larger screen penetrating capacity, the vibration strength of the vibrating screen is generally required to be increased, but the increase of the vibration strength can cause serious splashing of the drilling fluid, impact of solid phases such as rock debris contained in the drilling fluid and the like on the screen is also increased, and the service life of the screen is shortened; under certain vibration strength, in order to improve the processing capacity of the drilling fluid vibrating screen, the conventional vibrating screen only increases the area of a screen mesh. The solid phase liquid content of rock debris separated by the existing drilling fluid vibrating screen is up to more than 20 percent, the direct discharge has great pollution to the environment, the regulation of environmental protection regulations is not met, and meanwhile, the rock debris can not be transported to a drilling waste centralized treatment station by adopting a better means.
The existing drilling fluid vibrating screen has the defects of small treatment capacity, short service life of a screen, high liquid content of discharged rock debris and the like. Therefore, there is a strong need for a vibrating screen for drilling fluid that increases the throughput of drilling fluid, increases the useful life of the screen, and decreases the fluid content of cuttings.
SUMMERY OF THE UTILITY MODEL
Based on above problem, the utility model provides a double-deck negative pressure shale shaker of serial-type for it is little to solve current drilling fluid shale shaker handling capacity, and screen cloth life is short, and the high problem of exhaust detritus liquid content. The utility model can increase the treatment capacity of rock debris through the upper screen frame and the lower screen frame; the coarse mesh screen is laid on the upper screen frame, and the fine mesh screen is laid on the lower screen frame, so that the service life of the fine mesh screen is greatly prolonged, and the cost is reduced; and a negative pressure mechanism is arranged on the bottom surface of the lower screen frame, and a negative pressure difference is formed on the fine mesh screen, so that the liquid content of the rock debris can be reduced.
The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:
the utility model provides a serial-type double-deck negative pressure shale shaker, includes the shale shaker base, the reel is installed to shale shaker base top surface, the reel includes reel and lower reel, the reel is installed on the shale shaker base down, it is connected and is located the reel top down through stay tube and lower reel to go up the reel, laid coarse mesh screen cloth and fine mesh screen cloth through overspeed device tensioner on the reel, the reel down respectively, still install vibration mechanism on going up reel and the reel down, it installs the mud reflux mechanism who is located between reel and lower reel to go up the reel bottom surface, negative pressure mechanism is still installed to the reel bottom surface down.
The utility model discloses in, when the vibration mechanism vibrates, go up reel, reel down, vibration mechanism, coarse mesh screen cloth, fine mesh screen cloth, overspeed device tensioner, negative pressure mechanism and make vibrating motion as a whole, overspeed device tensioner here indicates can with coarse mesh screen cloth, fine mesh screen cloth tensioning respectively last reel, lower stopper device on the frame, its form can be multiple, as long as can with coarse mesh screen cloth, fine mesh screen cloth tensioning do not influence the work of whole equipment. The mud can pass through the upper screen frame, the drilling fluid is screened for the first time by the coarse mesh screen on the upper screen frame, large rock debris is removed, then the drilling fluid falls onto the mud backflow mechanism, the drilling fluid slides onto the fine mesh screen on the lower screen frame through the mud backflow mechanism, the mud is screened for the second time by the fine mesh screen, because the negative pressure mechanism is further arranged on the bottom surface of the lower screen frame, the drilling fluid of the fine mesh screen is accompanied by the negative pressure effect, the drilling fluid is subjected to the vibration effect of the lower screen frame on the fine mesh screen, a part of the drilling fluid can penetrate through the fine mesh screen, meanwhile, the negative pressure mechanism is opened, negative pressure is formed below the fine mesh screen, a certain pressure difference is formed above and below the fine mesh screen, the drilling fluid can obtain additional screen penetrating capacity, and the drilling fluid can penetrate through the screen under the combined action of the. Thereby increasing the handling capacity of the drilling fluid vibrating screen, reducing the liquid content of rock debris and prolonging the service life of the fine mesh screen.
As a preferred mode, the negative pressure mechanism comprises a vacuum chuck installed on the lower screen frame through a tensioning device, the lower part of the vacuum chuck is connected with a connecting pipe, the lower end of the connecting pipe is connected with a liquid-gas separator fixed on the top surface of the base of the vibrating screen, the lower part of the liquid-gas separator is connected with a drilling fluid drain pipe, the upper part of the liquid-gas separator is connected with a negative pressure pipe, and the negative pressure pipe is connected with a vacuum pump.
Preferably, the connecting tube is a flexible negative pressure tube.
Preferably, the vibration mechanism includes a motor base mounted on the upper and lower frames, and the motor base has a plurality of motors mounted thereon.
Preferably, the slurry return mechanism is a slurry return plate.
The utility model has the advantages as follows:
(1) the utility model can increase the treatment capacity of rock debris through the upper screen frame and the lower screen frame; the coarse mesh screen is laid on the upper screen frame, and the fine mesh screen is laid on the lower screen frame, so that the service life of the fine mesh screen is greatly prolonged, and the cost is reduced; and a negative pressure mechanism is arranged on the bottom surface of the lower screen frame, and a negative pressure difference is formed on the fine mesh screen, so that the liquid content of the rock debris can be reduced.
(2) The utility model discloses well negative pressure mechanism includes the vacuum chuck of installing on the reel down through overspeed device tensioner, and vacuum chuck's sub-unit connection has the connecting pipe, and the lower extreme of connecting pipe is connected with the liquid and gas separator who fixes at shale shaker base top surface, and liquid and gas separator's sub-unit connection has the drilling fluid-discharge tube, and upper portion is connected with the negative pressure pipe, and the negative pressure union coupling has the vacuum pump. The vacuum sucker is placed on the cross beam and the boundary beam of the lower screen frame below the fine screen, when drilling fluid and air enter the liquid-gas separator, the drilling fluid is discharged through the drilling fluid discharge pipe, and the air is sucked out through the vacuum pump through the negative pressure pipe.
(3) The utility model discloses well connecting pipe is flexible negative pressure pipe, and flexible negative pressure pipe will make vibrating motion's vacuum chuck and fix the liquid and gas separator on the shale shaker base and couple together, and the vibration that is about to vacuum chuck separates with liquid and gas separator, and the fork makes the mud under the fine mesh sieve net get into in liquid and gas separator's the passageway.
(4) The utility model discloses well vibration mechanism installs a plurality of motors including installing the motor cabinet on last reel and lower reel on the motor cabinet. The motor base can be connected with the upper screen frame and the lower screen frame into a whole in a welding or bolt connection mode, the motor can be fixed on the motor base through bolts, when the motor rotates, the upper screen frame, the lower screen frame, the motor base, the coarse mesh screen, the fine mesh screen, the tensioning device, the vacuum chuck and the slurry backflow plate are used as a whole to perform vibration motion, the number of the motors, the coarse mesh screen and the fine mesh screen can be multiple, the motors are conventional motors which can be easily purchased in the market, and therefore specific models and structures of the motors are not limited.
(5) The utility model discloses well mud backward flow mechanism is mud backward flow board, and mud backward flow board is fixed to be placed in the below of last reel, and the drilling fluid falls to mud backward flow board on, and the drilling fluid passes through mud backward flow board landing to fine mesh screen on, and fine mesh screen is further handled the drilling fluid again.
Drawings
FIG. 1 is a schematic view of the present invention, excluding the negative pressure tube and the vacuum pump;
FIG. 2 is a schematic view of the front structure of the present invention;
FIG. 3 is a simplified side view of the present invention, excluding the negative pressure tube and the vacuum pump;
FIG. 4 is a simplified top view of the present invention, without the negative pressure tube and vacuum pump;
FIG. 5 is a schematic view of the structure of FIG. 4 at A-A;
reference numerals: the device comprises a vibrating screen base, a fine-mesh screen, a lower screen frame, a coarse-mesh screen, an upper screen frame, a support pipe, a motor seat, a negative pressure pipe, a vacuum pump, a vacuum sucker, a tensioning device, a slurry return plate, a flexible negative pressure pipe, a liquid-gas separator, a drilling fluid drain pipe and a motor, wherein the vibrating screen base is 1, the fine-mesh screen is 2, the lower screen frame is 3, the coarse-mesh screen is 4.
Detailed Description
For a better understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and the following embodiments.
Example 1:
as shown in fig. 1-5, a tandem type double-layer negative pressure vibrating screen comprises a vibrating screen base 1, a screen frame is installed on the top surface of the vibrating screen base 1, the screen frame comprises an upper screen frame 5 and a lower screen frame 3, the lower screen frame 3 is installed on the vibrating screen base 1, the upper screen frame 5 is connected with the lower screen frame 3 through a support pipe 6 and is located above the lower screen frame 3, a coarse mesh screen 4 and a fine mesh screen 2 are respectively laid on the upper screen frame 5 and the lower screen frame 3 through a tensioning device 12, vibrating mechanisms are further installed on the upper screen frame 5 and the lower screen frame 3, a slurry backflow mechanism located between the upper screen frame 5 and the lower screen frame 3 is installed on the bottom surface of the upper screen frame 5, and a negative pressure mechanism is further installed on the bottom surface of the lower screen frame 3.
The utility model discloses in, during the vibration of vibration mechanism, go up reel 5, lower reel 3, vibration mechanism, coarse mesh screen 4, fine mesh screen 2, overspeed device tensioner 12, negative pressure mechanism make vibrating motion as a whole, overspeed device tensioner 12 here indicates can with coarse mesh screen 4, fine mesh screen 2 tensioning respectively last reel 5, the device of stopper frame down, its form can be multiple, as long as can with coarse mesh screen 4, fine mesh screen 2 tensioning does not influence the work of whole equipment. The mud can pass through an upper screen frame 5, a coarse mesh screen 4 on the upper screen frame 5 screens the drilling fluid for the first time to remove large rock debris, then the drilling fluid falls onto a mud backflow mechanism, the drilling fluid slides onto a fine mesh screen 2 on a lower screen frame 3 through the mud backflow mechanism, the fine mesh screen 2 screens the mud for the second time, a negative pressure mechanism is further installed on the bottom surface of the lower screen frame 3, the drilling fluid of the fine mesh screen 2 is accompanied by negative pressure, the drilling fluid is subjected to the vibration effect of the lower screen frame 3 on the fine mesh screen 2 to obtain a part of the capability of penetrating through the fine mesh screen 2, meanwhile, the negative pressure mechanism is opened to form negative pressure below the fine mesh screen 2, a certain pressure difference is formed above and below the fine mesh screen 2 to ensure that the drilling fluid obtains additional screening capability, and the drilling fluid penetrates through the screen mesh under the combined action of the vibration effect and the pressure difference above and below the fine. Thereby increasing the handling capacity of the drilling fluid vibrating screen, reducing the liquid content of rock debris and prolonging the service life of the fine mesh sieve 2.
Example 2:
as shown in fig. 1-5, a tandem type double-layer negative pressure vibrating screen comprises a vibrating screen base 1, a screen frame is installed on the top surface of the vibrating screen base 1, the screen frame comprises an upper screen frame 5 and a lower screen frame 3, the lower screen frame 3 is installed on the vibrating screen base 1, the upper screen frame 5 is connected with the lower screen frame 3 through a support pipe 6 and is located above the lower screen frame 3, a coarse mesh screen 4 and a fine mesh screen 2 are respectively laid on the upper screen frame 5 and the lower screen frame 3 through a tensioning device 12, vibrating mechanisms are further installed on the upper screen frame 5 and the lower screen frame 3, a slurry backflow mechanism located between the upper screen frame 5 and the lower screen frame 3 is installed on the bottom surface of the upper screen frame 5, and a negative pressure mechanism is further installed on the bottom surface of the lower screen frame 3.
In this embodiment, the negative pressure mechanism includes a vacuum chuck 11 mounted on the lower screen frame 3 through a tensioning device 12, a connecting pipe is connected to a lower portion of the vacuum chuck 11, a liquid-gas separator 15 fixed to the top surface of the vibrating screen base 1 is connected to a lower end of the connecting pipe, a drilling fluid drain pipe 16 is connected to a lower portion of the liquid-gas separator 15, a negative pressure pipe 9 is connected to an upper portion of the liquid-gas separator, and the negative pressure pipe 9 is connected to a vacuum pump 10. The vacuum sucker 11 is placed on a cross beam and a boundary beam of the lower screen frame 3 below the fine screen mesh 2, when drilling fluid and air enter the liquid-gas separator 15, the drilling fluid is discharged by the drilling fluid discharge pipe 16, and the air is sucked out by the vacuum pump 10 through the negative pressure pipe 9, so that the vacuum pump 10 is guaranteed to suck out the air, the phenomenon that rock debris is deposited and enters the negative pressure pipe 9 to cause blockage is avoided, the vacuum pump 10 is a conventional vacuum pump 10 which can be easily purchased in the market, and the specific model and the structure of the vacuum pump are not limited.
Preferably, the connecting pipe is a flexible negative pressure pipe 14, the flexible negative pressure pipe 14 connects the vacuum sucker 11 which does vibration motion with a liquid-gas separator 15 fixed on the vibrating screen base 1, namely, the vibration of the vacuum sucker 11 is separated from the liquid-gas separator 15, and mud below the fine mesh screen 2 enters a channel of the liquid-gas separator 15.
Other parts of this embodiment are the same as those of the above embodiment, and are not described herein again.
Example 3:
as shown in fig. 1-5, a tandem type double-layer negative pressure vibrating screen comprises a vibrating screen base 1, a screen frame is installed on the top surface of the vibrating screen base 1, the screen frame comprises an upper screen frame 5 and a lower screen frame 3, the lower screen frame 3 is installed on the vibrating screen base 1, the upper screen frame 5 is connected with the lower screen frame 3 through a support pipe 6 and is located above the lower screen frame 3, a coarse mesh screen 4 and a fine mesh screen 2 are respectively laid on the upper screen frame 5 and the lower screen frame 3 through a tensioning device 12, vibrating mechanisms are further installed on the upper screen frame 5 and the lower screen frame 3, a slurry backflow mechanism located between the upper screen frame 5 and the lower screen frame 3 is installed on the bottom surface of the upper screen frame 5, and a negative pressure mechanism is further installed on the bottom surface of the lower screen frame 3.
In this embodiment, the vibration mechanism includes a motor base 8 installed on the upper screen frame 5 and the lower screen frame 3, and a plurality of motors 7 are installed on the motor base 8. The motor base 8 can be connected with the upper screen frame 5 and the lower screen frame 3 into a whole in a welding or bolt connection mode, the motor 7 can be fixed on the motor base 8 through bolts, when the motor 7 rotates, the upper screen frame 5, the lower screen frame 3, the motor 7, the motor base 8, the coarse mesh screen 4, the fine mesh screen 2, the tensioning device 12, the vacuum chuck 11 and the slurry backflow plate 13 are used as a whole to perform vibration motion, the number of the motors 7, the coarse mesh screen 4 and the fine mesh screen 2 can be multiple, the motor 7 is also a conventional motor 7 which can be easily purchased in the market, and the specific model and the structure are not limited.
Preferably, the mud backflow mechanism is a mud backflow plate 13, the mud backflow plate 13 is fixedly arranged below the upper screen frame 5, the drilling fluid falls onto the mud backflow plate 13, the drilling fluid slides onto the fine-mesh screen 2 through the mud backflow plate 13, and the drilling fluid is further processed by the fine-mesh screen 2.
Other parts of this embodiment are the same as those of the above embodiment, and are not described herein again.
The embodiment of the present invention is the above. The specific parameters in the above embodiments and examples are only for the purpose of clearly showing the verification process of the present invention, and are not used to limit the protection scope of the present invention, which is still subject to the claims, and all the equivalent structural changes made by using the contents of the specification and drawings of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a serial-type double-deck negative pressure shale shaker, includes shale shaker base (1), the reel is installed to shale shaker base (1) top surface, a serial communication port, the reel includes reel (5) and lower reel (3), install on shale shaker base (1) reel (3) down, go up reel (5) and be connected and be located reel (3) top down through stay tube (6) and reel (3) down, go up reel (5), laid coarse mesh screen cloth (4) and fine mesh screen cloth (2) through overspeed device tensioner (12) on reel (3) down respectively, still install vibrating mechanism on going up reel (5) and reel (3) down, go up reel (5) bottom surface and install the mud reflux mechanism who is located between reel (5) and lower reel (3), negative pressure mechanism is still installed to reel (3) bottom surface down.
2. The tandem double-layer negative pressure vibrating screen is characterized in that the negative pressure mechanism comprises a vacuum sucker (11) which is installed on the lower screen frame (3) through a tensioning device (12), the lower part of the vacuum sucker (11) is connected with a connecting pipe, the lower end of the connecting pipe is connected with a liquid-gas separator (15) which is fixed on the top surface of the vibrating screen base (1), the lower part of the liquid-gas separator (15) is connected with a drilling fluid drain pipe (16), the upper part of the liquid-gas separator is connected with a negative pressure pipe (9), and the negative pressure pipe (9) is connected with a vacuum pump (10).
3. A tandem double layer negative pressure vibrating screen according to claim 2, characterized in that the connecting pipe is a flexible negative pressure pipe (14).
4. A tandem type double-layer negative pressure vibrating screen according to claim 1, characterized in that the vibrating mechanism comprises a motor base (8) mounted on the upper screen frame (5) and the lower screen frame (3), and a plurality of motors (7) are mounted on the motor base (8).
5. A tandem double deck negative pressure shaker as claimed in claim 1 or 4, wherein the slurry return mechanism is a slurry return plate (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920570526.1U CN210152583U (en) | 2019-04-24 | 2019-04-24 | Tandem double-layer negative pressure vibrating screen |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920570526.1U CN210152583U (en) | 2019-04-24 | 2019-04-24 | Tandem double-layer negative pressure vibrating screen |
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| CN210152583U true CN210152583U (en) | 2020-03-17 |
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| CN201920570526.1U Active CN210152583U (en) | 2019-04-24 | 2019-04-24 | Tandem double-layer negative pressure vibrating screen |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111794702A (en) * | 2020-07-16 | 2020-10-20 | 陕西艾潽机械制造有限公司 | Degassing vibrating screen |
| CN113309915A (en) * | 2021-07-28 | 2021-08-27 | 四川宝石机械专用车有限公司 | High-frequency vibration's sound sealing connection structure |
| CN113669024A (en) * | 2021-10-22 | 2021-11-19 | 西南石油大学 | Independent double-negative-pressure well drilling vibrating screen |
| CN116078034A (en) * | 2023-04-12 | 2023-05-09 | 山东辰星石油装备有限公司 | Negative pressure vibrating screen for slurry treatment |
-
2019
- 2019-04-24 CN CN201920570526.1U patent/CN210152583U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111794702A (en) * | 2020-07-16 | 2020-10-20 | 陕西艾潽机械制造有限公司 | Degassing vibrating screen |
| CN111794702B (en) * | 2020-07-16 | 2022-03-29 | 陕西艾潽机械制造有限公司 | Degassing vibrating screen |
| CN113309915A (en) * | 2021-07-28 | 2021-08-27 | 四川宝石机械专用车有限公司 | High-frequency vibration's sound sealing connection structure |
| CN113669024A (en) * | 2021-10-22 | 2021-11-19 | 西南石油大学 | Independent double-negative-pressure well drilling vibrating screen |
| CN116078034A (en) * | 2023-04-12 | 2023-05-09 | 山东辰星石油装备有限公司 | Negative pressure vibrating screen for slurry treatment |
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Effective date of registration: 20201026 Address after: 618300, No. two, Nanchang Road, Guanghan, Sichuan, Deyang 48 Patentee after: SICHUAN BAOSHI MACHINERY SPECIAL VEHICLE Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: 618300, No. two, Nanchang Road, Guanghan, Sichuan, Deyang 48 Patentee before: SICHUAN BAOSHI MACHINERY SPECIAL VEHICLE Co.,Ltd. |