CN110939399A - Variable-track drilling fluid vibrating screen - Google Patents
Variable-track drilling fluid vibrating screen Download PDFInfo
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- CN110939399A CN110939399A CN201811118566.9A CN201811118566A CN110939399A CN 110939399 A CN110939399 A CN 110939399A CN 201811118566 A CN201811118566 A CN 201811118566A CN 110939399 A CN110939399 A CN 110939399A
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- eccentric block
- drilling fluid
- vibration motor
- motor
- vibrating screen
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- 239000012530 fluid Substances 0.000 title claims abstract description 61
- 238000005553 drilling Methods 0.000 title claims abstract description 52
- 238000012546 transfer Methods 0.000 claims abstract description 28
- 238000009434 installation Methods 0.000 claims description 11
- 239000011435 rock Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000012216 screening Methods 0.000 description 10
- 230000005284 excitation Effects 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
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Classifications
-
- 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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses an orbital transfer drilling fluid vibrating screen, which comprises: a screen box; the vibration motor set is arranged on the screen box; the eccentric block groups are respectively arranged on two sides of all motor shafts of the vibration motor group; and the balancing weight can be detachably arranged on the eccentric block group. According to the track-changing drilling fluid vibrating screen disclosed by the invention, when the required handling capacity is large, the balancing weight with the corresponding weight is installed on the eccentric block group, so that the vibration track parameter is increased; when the required treatment capacity is less, the light balancing weight is replaced or the balancing weight is detached, so that the waste of electric energy caused by overlarge vibration track parameters is avoided, and the service life of the vibrating screen is shortened. The variable-track drilling fluid vibrating screen disclosed by the invention can adjust the vibration track parameters in the face of different drilling fluid and different vibrating screen treatment amounts required by rock debris parameters.
Description
Technical Field
The invention relates to the technical field of screening equipment, in particular to an orbital transfer drilling fluid vibrating screen.
Background
In the petroleum drilling operation, the variable-track drilling fluid vibrating screen is an efficient vibrating screen, and has large handling capacity and good screening effect. The vibration track parameters of the variable track drilling fluid vibrating screen are fixed, however, the required vibrating screen treatment amount is different when different drilling fluid and rock debris parameters are faced, and when the required treatment amount is larger, all drilling fluid cannot be treated by the undersized vibration track parameters; when the required processing capacity is small, the overlarge vibration track parameters not only cause the waste of electric energy, but also reduce the service life of the vibrating screen.
Therefore, how to adjust the vibration track of the orbital transfer drilling fluid vibrating screen is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of this, the present invention aims to provide an orbital transfer drilling fluid vibrating screen, which can adjust the vibration track of the orbital transfer drilling fluid vibrating screen.
In order to achieve the above object, the present invention provides the following solutions:
an orbital transfer drilling fluid shaker comprising:
a screen box;
the vibration motor set is arranged on the screen box;
the eccentric block groups are respectively arranged on two sides of all motor shafts of the vibration motor group; and
the balancing weight, the balancing weight can demountable installation be in on the eccentric block group.
In one embodiment, the vibration motor set includes a first vibration motor and a second vibration motor;
the first vibration motor and the second vibration motor have opposite rotation directions, and the excitation force of the first vibration motor is not equal to the excitation force of the second vibration motor.
In another embodiment, the set of eccentric masses includes an inner eccentric mass and an outer eccentric mass;
the inner eccentric block and the outer eccentric block are both arranged on the motor shaft, the inner eccentric block is arranged on the inner side of the outer eccentric block, and the inner side of the outer eccentric block refers to the side of the outer eccentric block facing the vibration motor set;
the number of balancing weight is a plurality of, just the balancing weight can demountable installation be in on the outer eccentric block.
In another embodiment, the inner eccentric mass is fixed to the motor shaft by a key on the motor shaft;
the outer eccentric block is sleeved on the motor shaft and is in clearance fit with the motor shaft;
an arc-shaped groove is formed in the outer eccentric block, a sliding connecting rod is mounted on the inner eccentric block, and the other end of the sliding connecting rod can slide in the arc-shaped groove.
In another embodiment, the outer eccentric block is provided with a preset number of mounting holes;
the balancing weight can be connected in the mounting hole through threads.
In another embodiment, the orbital transfer fluid shaker further comprises a motor mount;
the installation face of motor cabinet with the sieve case is first preset angle setting, the vibration motor group is installed on the installation face of motor cabinet.
In another embodiment, the apodized drilling fluid shaker further comprises a stub shaft vibration motor;
the short shaft vibration motors are arranged on two sides of the feeding end of the screen box.
In another embodiment, the short axis vibration motors on both sides of the feed end of the screen box rotate in opposite directions.
In another embodiment, the orbital transfer fluid shaker further comprises a stub shaft vibration motor mount;
the short shaft vibration motor base is installed on the screen box, the short shaft vibration motor is installed on the short shaft vibration motor base, and the shaft axis of the short shaft vibration motor and the bottom surface of the screen box are arranged at a second preset angle.
In another embodiment, the first predetermined angle is greater than or equal to 15 degrees and less than or equal to 45 degrees;
the second preset angle is greater than or equal to 10 degrees and less than or equal to 30 degrees.
The various embodiments according to the invention can be combined as desired, and the embodiments obtained after these combinations are also within the scope of the invention and are part of the specific embodiments of the invention.
Without being limited to any theory, it can be seen from the above disclosure that in one specific embodiment, the disclosed orbital displacement drilling fluid vibrating screen, when the required handling capacity is large, mounts the counter weight with the corresponding weight on the eccentric block group to increase the vibration track parameter; when the required treatment capacity is less, the light balancing weight is replaced or the balancing weight is detached, so that the waste of electric energy caused by overlarge vibration track parameters is avoided, and the service life of the vibrating screen is shortened. The variable-track drilling fluid vibrating screen disclosed by the invention can adjust the vibration track parameters in the face of different drilling fluid and different vibrating screen treatment amounts required by rock debris parameters.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a front view of an orbital transfer drilling fluid shaker provided by the present invention;
FIG. 2 is a schematic structural diagram of an orbital transfer fluid vibrating screen according to the present invention, wherein the angles of the inner eccentric block and the outer eccentric block are not deviated;
FIG. 3 is a schematic structural view of the orbital transfer fluid shaker of the present invention with the maximum angular deviation of the inner and outer eccentric masses;
FIG. 4 is a schematic structural view of a motor shaft of the orbital transfer fluid shaker provided in the present invention;
FIG. 5 is a schematic structural view of an inner eccentric block of an orbital transfer fluid shaker provided in accordance with the present invention;
FIG. 6 is a schematic structural view of an outer eccentric mass of an orbital transfer fluid shaker provided in accordance with the present invention;
FIG. 7 is a schematic structural diagram of a counterweight of an orbital transfer fluid shaker provided in the present disclosure;
FIG. 8 is a schematic structural diagram of a vibration motor set and a screen box of the orbital transfer drilling fluid vibrating screen provided by the invention in a front view when the vibration motor set and the screen box are obliquely arranged;
FIG. 9 is a schematic top view of the structure of FIG. 8;
FIG. 10 is a schematic view of an installation structure of a short shaft vibration motor and a motor base of the orbital transfer drilling fluid vibrating screen provided by the invention;
fig. 11 is a schematic structural diagram of a motor base of the orbital transfer fluid vibrating screen provided by the invention.
Wherein, in fig. 1-11:
the screening box comprises a screening box 1, a vibration motor set 2, an eccentric block set 3, a motor shaft 201, a balancing weight 4, a first vibration motor 202, a second vibration motor 203, an inner eccentric block 301, an outer eccentric block 302, a key 303, an arc-shaped groove 3021, a sliding connecting rod 304, a mounting hole 3022, a motor base 5, a short-axis vibration motor 6, a short-axis vibration motor base 7, a base 8, a feeding bin 9, a support spring 10, a spring support 11, a screen 12 and a stand column 13.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
Example one
As shown in fig. 1, the invention discloses an orbital transfer drilling fluid vibrating screen. The variable-track drilling fluid vibrating screen comprises a screen box 1, a vibrating motor set 2, an eccentric block set 3 and a balancing weight 4.
The vibrating motor group 2 is arranged on the screen box 1. The vibration motor set 2 can comprise any number of vibration motors, and 2 vibration motors are preferably selected in number in consideration of the screening effect and the adjustment convenience (if 1 vibration motor is installed, the formed vibration track can cause material backflow, the screening effect is poor, and if 3 or more vibration motors are installed, the adjustment of the vibration screen becomes very complicated, in addition, because the rotation direction of the vibration motors is only clockwise and anticlockwise, and the 3 or more vibration motors are installed, part of the rotation directions are the same, and the excitation force generated by the vibration motors rotating in the same direction can be replaced by one vibration motor with larger excitation force). 2 vibrating motors are installed, the directions of the 2 vibrating motors are opposite, and the vibrating screen can form a translational elliptic, variable elliptic or linear track by changing the proportion of the exciting forces of the 2 vibrating motors, so that the track beneficial to improving the screening performance of the vibrating screen is found.
The eccentric block group 3 is respectively installed on two sides of all motor shafts 201 of the vibration motor group 2, the weight of the eccentric block group 3 is adjustable, and the vibration track of the vibration sieve is adjusted.
The balancing weight 4 can be detachably mounted on the eccentric block group 3, and can include a plurality of balancing weights 4 with different weights, and also can include a plurality of balancing weights 4 with the same weight, and the adjustment of the weight of the eccentric block group 3 is realized according to the difference of the weight of the mounted balancing weights 4.
According to the track-changing drilling fluid vibrating screen disclosed by the invention, when the required treatment capacity is large, the balancing weight 4 with the corresponding weight is installed on the eccentric block group 3, so that the vibration track parameter is increased; when the required treatment capacity is less, the light balancing weight 4 is replaced or the balancing weight 4 is detached, so that the waste of electric energy caused by overlarge vibration track parameters is avoided, and the service life of the vibrating screen is shortened. The variable-track drilling fluid vibrating screen disclosed by the invention can adjust the vibration track parameters in the face of different drilling fluid and different vibrating screen treatment amounts required by rock debris parameters.
Example two
As shown in fig. 2 to 7, in a second embodiment provided by the present invention, the structure of the orbital transfer fluid vibrating screen in this embodiment is similar to that of the orbital transfer fluid vibrating screen in the first embodiment, and the same parts are not repeated and only the differences are introduced.
In the present embodiment, the present invention specifically discloses that the vibration motor set 2 includes a first vibration motor 202 and a second vibration motor 203. The first vibration motor 202 and the second vibration motor 203 have opposite rotation directions, and the excitation force of the first vibration motor 202 is not equal to the excitation force of the second vibration motor 203. By changing the proportion of the exciting forces of the first vibrating motor 202 and the second vibrating motor 203, the vibrating screen of the invention forms a translational elliptic, variable elliptic or linear track, which is beneficial to improving the track of the screening performance of the vibrating screen.
Further, the present invention discloses that the eccentric block set 3 includes an inner eccentric block 301 and an outer eccentric block 302.
Both the inner eccentric mass 301 and the outer eccentric mass 302 are arranged on the motor shaft 201, that is, the inner eccentric mass 301 and the outer eccentric mass 302 are arranged on the same side of the motor shaft 201 in sequence. And the inner eccentric mass 301 is disposed at the inner side of the outer eccentric mass 302, which is the side of the outer eccentric mass 302 facing the first vibration motor 202 or the second vibration motor 203.
The number of the balancing weights 4 is plural, and the balancing weights 4 can be detachably mounted on the outer eccentric block 302. It should be noted that the weight block 4 may be detachably mounted on the inner eccentric block 301.
Further, the invention discloses that the inner eccentric block 301 is fixed on the motor shaft 201 through a key 303 on the motor shaft 201, specifically, the motor shaft 201 is provided with the key 303, and the length of the key 303 is the same as the width of the inner eccentric block 301. The inner eccentric block 301 is provided with a center hole penetrating through the motor shaft 201 and a key groove matched with the key 303.
The outer eccentric block 302 is sleeved on the motor shaft 201 and is in clearance fit with the motor shaft 201, that is, the outer eccentric block 302 can rotate around the axis of the motor shaft 201.
An arc-shaped groove 3021 is formed in the outer eccentric block 302, the sliding connecting rod 304 is mounted on the inner eccentric block 301, and the other end of the sliding connecting rod 304 can slide in the arc-shaped groove 3021. To facilitate the sliding of the sliding link 304 within the arcuate slot 3021, the arcuate slot 3021 is provided with a radial dimension that is the same as the radial dimension of the sliding link 304 to the motor shaft 201.
For the convenience of processing, the outer eccentric block 302 and the inner eccentric block 301 are provided with the same external dimension.
Further, the invention discloses that the outer eccentric block 302 is provided with a preset mounting hole 3022, and the balancing weight 4 can be connected in the mounting hole 3022 through threads. In order to avoid interference between the balancing weight 4 and other parts, the invention further discloses that the mounting hole 3022 is a counter bore, the balancing weight 4 is a steel block with a cylindrical cross section, and a hexagon socket is arranged on the end surface of the steel block, so that the assembly and disassembly are convenient.
In the embodiment, the sliding connecting rod 304 is taken as a hexagon head bolt as an example, the inner eccentric block 301 is provided with a threaded hole, the hexagon head bolt passes through the arc-shaped slot 3021 on the outer eccentric block 302, and the outer eccentric block 302 can rotate around the motor shaft 201 within the range of the arc-shaped slot 3021.
When the outer eccentric block 302 and the inner eccentric block 301 are overlapped in shape, the excitation force is maximum; when the outer eccentric block 302 and the inner eccentric block 301 form the largest included angle, the exciting force is the smallest.
Different vibration tracks can be formed by two methods of combining the outer eccentric blocks 302 of the two vibration motors to install different numbers of steel blocks and controlling the rotation of the vibration motors on a drilling site so as to deal with different treatment amounts. Two of the extremes are: when the vibrating screen needs the maximum processing capacity, the outer eccentric blocks 302 of the two vibrating motors are filled with steel blocks, and the rotating directions of the motors meet the condition that the outer eccentric blocks 302 and the inner eccentric blocks 301 are overlapped; when the vibrating screen needs the minimum processing capacity, all steel blocks are removed from the outer eccentric blocks 302 of the two vibrating motors, and the rotating direction of the motors meets the condition that the included angle between the outer eccentric blocks 302 and the inner eccentric block 301 is the maximum.
According to the invention, the gear with high vibration track parameter is adjusted when the large treatment capacity of the vibrating screen is needed, slurry leakage is avoided, the gear with low vibration track parameter is adjusted when the small treatment capacity of the vibrating screen is needed, and the service lives of the screen 12 and the vibrating screen are prolonged.
EXAMPLE III
As shown in fig. 8 to 11, in a third embodiment provided by the present invention, the structure of the orbital transfer fluid vibrating screen in this embodiment is similar to that of the orbital transfer fluid vibrating screen in the second embodiment, and the same parts are not repeated and only the differences are introduced.
In the embodiment, the invention specifically discloses an orbital transfer drilling fluid vibrating screen which comprises a base 8, a feeding bin 9, supporting springs 10 and spring supports 11, wherein two spring supports 11 are respectively fixed on two sides of the base 8, and a screen box 1 is installed on the four spring supports 11 of the base 8 through the supporting springs 10.
The screen 12 is fixed in the screen box 1, the screen 12 can be paved on the whole screen box 1, and the mesh number of the screen 12 is selected according to actual needs.
The feed bin 9 is fixed to one end of the base 8 by two columns 1313 to provide drilling fluid to be screened for the vibrating screen.
The invention further discloses an orbital transfer drilling fluid vibrating screen which further comprises a motor base 5, wherein the installation surface of the motor base 5 and a screen box 1 are arranged in a first preset angle α, a vibrating motor group 2 is installed on the installation surface of the motor base 5, the motor base 5 is fixed above the screen box 1, a first vibrating motor 202 and a second vibrating motor 203 are fixed on the installation surface of the vibrating motor base 5 (namely an inclined plane of the vibrating motor base 5), and the inclined angle of the vibrating motor base 5 is selected according to the vibration track required by the vibrating screen.
Furthermore, the invention also discloses an orbital transfer drilling fluid vibrating screen which comprises 2 short shaft vibrating motors 6, wherein the short shaft vibrating motors 6 are respectively arranged on two sides of the feeding end of the screen box 1. The vibration amplitude and the acceleration of the feeding end of the screen box 1 are improved, the drilling fluid can be screened quickly, and the handling capacity of the vibrating screen is greatly improved.
In order to further improve the amplitude and the acceleration of the feeding end of the screen box 1, the invention discloses that the short shaft vibration motors 6 on the two sides of the feeding end of the screen box 1 are opposite in rotation direction.
The invention further discloses an orbital transfer drilling fluid vibrating screen which further comprises a short shaft vibrating motor base 7, wherein the short shaft vibrating motor base 7 is installed on the screen box 1, the short shaft vibrating motor 6 is installed on the short shaft vibrating motor base 7, and the axis line of the short shaft vibrating motor 6 and the bottom surface of the screen box 1 are arranged in a second preset angle β.
According to the processing amount of the designed vibrating screen, the optimal track of each point of the vibrating screen can be obtained by changing the sizes of the first preset angle and the second preset angle.
When the vibrating screen provided by the invention is used, when the discharge capacity of drilling fluid required to be processed by the vibrating screen is more than 30L/S and the mesh number of the used screen 12 is more than 150 meshes, the first vibrating motor 202, the second vibrating motor 203 and the two short-axis vibrating motors 6 are started simultaneously. Because the drilling fluid inflow of the feed end of the screen box 1 is large, the flow rate is high, two short-shaft vibration motors 6 are additionally arranged at the feed end of the screen box 1, the vibration track of the vibrating screen is changed, the amplitude and the acceleration of the feed end of the screen box 1 are improved, the vibration direction angle of the vibrating screen is increased, the drilling fluid can be screened quickly, and the handling capacity of the vibrating screen is greatly improved. Compared with the prior vibrating screen, the vibrating screen has the advantages that most of two vibrating motors of the vibrating screen are arranged at the position, close to the sand outlet, of the screen box 1, when a large amount of drilling fluid flows into the feeding end of the screen box 1, the mass is heavy, the amplitude and the screening efficiency of the feeding end of the screen box 1 are greatly reduced, and the problem of low screening efficiency of the feeding end of the screen box 1 of the prior vibrating screen is solved.
When the drilling site needs a vibrating screen to process a small amount of drilling fluid or the screen 12 is used with a small number of meshes, the site needs can be met only by starting the first vibrating motor 202 and the second vibrating motor 203, so that the energy consumption of the vibrating screen can be reduced, and the drilling cost can be reduced.
The terms "first", "second", and the like in the present invention are used for descriptive distinction and have no other special meaning.
In the description of the present invention, it is to be understood that the terms "top end", "bottom end", "top surface", "upper", "lower", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and inventive features disclosed herein.
Claims (10)
1. An orbital transfer drilling fluid shaker, comprising:
a sieve box (1);
the vibration motor set (2), the vibration motor set (2) is installed on the sieve box (1);
the eccentric block group (3), the eccentric block group (3) is respectively installed on both sides of all motor shafts (201) of the vibration motor group (2); and
balancing weight (4), balancing weight (4) can demountable installation be in on the eccentric block group (3).
2. The apodized drilling fluid shaker of claim 1, wherein the vibration motor set (2) includes a first vibration motor (202) and a second vibration motor (203);
the rotating directions of the first vibration motor (202) and the second vibration motor (203) are opposite, and the exciting force of the first vibration motor (202) is not equal to the exciting force of the second vibration motor (203).
3. The apodized drilling fluid shaker of claim 1 or 2, wherein the eccentric block set (3) includes an inner eccentric block (301) and an outer eccentric block (302);
the inner eccentric block (301) and the outer eccentric block (302) are both arranged on the motor shaft (201), the inner eccentric block (301) is arranged on the inner side of the outer eccentric block (302), and the inner side of the outer eccentric block (302) refers to the side of the outer eccentric block (302) facing the vibration motor set (2);
the number of the balancing weights (4) is multiple, and the balancing weights (4) can be detachably mounted on the outer eccentric block (302).
4. The apodized drilling fluid shaker of claim 3, wherein the inner eccentric mass (301) is fittingly secured to the motor shaft (201) by a key (303);
the outer eccentric block (302) is sleeved on the motor shaft (201) and is in clearance fit with the motor shaft (201);
an arc-shaped groove (3021) is formed in the outer eccentric block (302), a sliding connecting rod (304) is mounted on the inner eccentric block (301), and the other end of the sliding connecting rod (304) can slide in the arc-shaped groove (3021).
5. The apodized drilling fluid vibrating screen of claim 4, wherein a predetermined number of mounting holes (3022) are provided in the outer eccentric mass (302);
the balancing weight (4) can be connected in the mounting hole (3022) through threads.
6. The apodized drilling fluid vibrating screen according to any one of claims 1-5, further comprising a motor mount (5);
the installation face of motor cabinet (5) with sieve case (1) is first preset angle setting, install vibration motor group (2) on the installation face of motor cabinet (5).
7. The apodized drilling fluid vibrating screen of claim 6, further comprising a stub shaft vibration motor (6);
the short shaft vibration motors (6) are arranged on two sides of the feeding end of the screen box (1).
8. The apodized drilling fluid shaker of claim 7,
the rotation directions of the short shaft vibration motors (6) on the two sides of the feeding end of the screen box (1) are opposite.
9. The apodized drilling fluid vibrating screen of claim 8, further comprising a stub shaft vibration motor mount (7);
the short shaft vibration motor base (7) is installed on the screen box (1), the short shaft vibration motor (6) is installed on the short shaft vibration motor base (7), and the axis of the short shaft vibration motor (6) and the bottom surface of the screen box (1) are in second preset angle setting.
10. The apodized drilling fluid vibrating screen according to any one of claims 7-9, wherein the first predetermined angle is greater than or equal to 15 degrees and less than or equal to 45 degrees;
the second preset angle is greater than or equal to 10 degrees and less than or equal to 30 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811118566.9A CN110939399B (en) | 2018-09-25 | 2018-09-25 | Variable-track drilling fluid vibrating screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811118566.9A CN110939399B (en) | 2018-09-25 | 2018-09-25 | Variable-track drilling fluid vibrating screen |
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| CN110939399A true CN110939399A (en) | 2020-03-31 |
| CN110939399B CN110939399B (en) | 2022-04-19 |
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| CN112127818A (en) * | 2020-09-09 | 2020-12-25 | 西南石油大学 | Continuously adjustable vibrating screen experiment bench device |
| CN112974223A (en) * | 2021-02-07 | 2021-06-18 | 中海油田服务股份有限公司 | Sorting vibrating screen and dry-wet material distributing equipment |
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| CN110939399B (en) | 2022-04-19 |
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