CN87213221U - Double vibration excited screen oscillating in an orbit of heart shape - Google Patents
Double vibration excited screen oscillating in an orbit of heart shape Download PDFInfo
- Publication number
- CN87213221U CN87213221U CN 87213221 CN87213221U CN87213221U CN 87213221 U CN87213221 U CN 87213221U CN 87213221 CN87213221 CN 87213221 CN 87213221 U CN87213221 U CN 87213221U CN 87213221 U CN87213221 U CN 87213221U
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- CN
- China
- Prior art keywords
- screen
- vibrator
- screen cloth
- box
- wide
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to a double vibration excited screen oscillating in an orbit of heart shape, which is used for screening well drilling fluid in an oilfield. Two exciters of the vibration screen run asynchronously, and drive a screen box to motion in the orbit of similar to a heart shape. The screen box is in tower structure; the top and the bottom layers of the screen box are respectively fixed with a wide-meshed screen and a fine-meshed screen; the two screens are all supported in three-dimensional fastening. The utility model has the advantages of steady running, high screening efficiency, long service life, easy debris discharging, etc.
Description
The utility model relates to a kind of moto-vibro screen that is used to sieve material, particularly relates to a kind of drilling fluid that is used to sieve, and movement locus is heart-shaped two vibrator vibratory sieves.
The mud vibrating screen that uses in departments such as oil drillings is generally two kinds at present.A kind of is single vibrator vibratory sieve, and its screen cloth adopts bar shaped rubber strip or the supporting of shaped as frame rubber bearing bar, and this support pattern is easy to generate wire screen and pats the support strip phenomenon, and damages wire screen easily.Its screen box is the both sides panel structure, and inconvenience is checked, maintenance and adjustment screen cloth.Its splitter box is the single face water conservancy diversion, and drilling liquid flow is bigger to the impulsive force of screen cloth.Another kind is two vibrator vibratory sieves, two vibrator run-in synchronisms of this vibratory sieve, and its movement locus is circular, its shortcoming is that screen cloth stops up easily.
The purpose of this utility model be to provide a kind of amplitude little, shake high frequently, running steadily, the vibratory sieve of high, the screen cloth long service life of screening efficiency.
The purpose of this utility model is to realize like this, this vibratory sieve drives its vibration by former and later two vibrators, two vibrators are done asynchronous running, and the drive screen box is similar to heart-shaped motion as movement locus, its screen box is a tower structure, framework is two-layer wide-meshed screen and the fine screen mesh of being fixed with respectively up and down, two-layer screen cloth all adopts three-dimensional fastening and some supporting, screen box is connected with base by the spring on four angles, bottom, the splitter box of drilling fluid arrival end is a circulation type, and its bottom is connected with the water conservancy diversion drawer.The front and back vibrator is driven by four utmost point motors and two-pole machine respectively.
Its operation principle is as follows: establishing the back motor speed is the twice of preceding motor speed, (if do not become multiple, then vector locus produces rotation); Preceding vibrator amplitude is R
1, vector angle of living in is θ; Back vibrator amplitude is R
2, vector angle of living in is 2 θ; The screen box amplitude is R
3, vector angle of living in is α.
Then: R
3=
tanα＝ (R
1sinθ+R
2sin2θ)/(R
1cosθ+R
2cos2θ)
R
3Coordinate position x=R
1Cos θ+R
2Cos2 θ
y＝R
1sinθ＋R
2sin2θ
Can get following table by above formula calculating:
As seen from the above table, screen box is along with preceding vibrator run-in synchronism basically, though its vector is at R
1+ R
2To R
1-R
2Between change, its angular speed is constant angular velocity not, but the screen box vibration frequency is identical with preceding vibrator.By finding out in the table, in the time of 270 °, R
3=R
1+ R
2, in the time of 90 °, R
3=R
1-R
2, the screen box amplitude is at (R
1+ R
2) to (R
1-R
2) between change, hence one can see that, the vector locus of screen box motion is similar to heart.
The course of work of this vibratory sieve is: after the drilling fluid that carries a large amount of landwaste returns out from well head, flow into sedimentation basin by drilling fluid canal or pipe, drilling fluid just flows into splitter box after sedimentation basin is full of, splitter box is a circulation type, when drilling liquid flow extremely surpasses water conservancy diversion drawer edge height, just overflow is gone in the water conservancy diversion drawer around the water conservancy diversion drawer mouth, then in the screen box of falling the bottom from the hole and the open front of water conservancy diversion drawer bottom.Screen box is vibrated by the vibrator drive of two asynchronous runnings, because inconsistent on direction and strength of two vibrators, the vibration that makes the every bit of screen cloth all produce steady change, in vibration processes, landwaste in mud vibrator one end is in the past discharged, mud then flows into the fine screen mesh of bottom through wide-meshed screen, further in the slurry tank under the screening back inflow sieve.
Compared with prior art, because the vibrator rotating ratio doubled originally and be dither, therefore can improve one times of screening efficiency.Because its movement locus is similar to heart, the exciting force of two vibrators inconsistent on direction and strength, make the screen cloth every bit all produce the vibration of steady change, so just make in the drilling fluid mud pellet not on screen cloth, landwaste is difficult for jam in sieve screen apertures, and help landwaste is shaked out, therefore, make screen cloth in time recover screening area.Because screen cloth adopts the three-dimensional fastening of many fulcrums and puts and support, therefore solved bar shaped or shaped as frame and supported the problem that the wire screen that is produced is patted cramp bar and made the easy damage of screen cloth, thereby prolonged the service life of screen cloth.Many point supportings also make screen cloth in length and breadth, the span at oblique angle is more even, is connected with reinforced sheet on fulcrum place screen cloth, makes many mesh wires simultaneously stressed, so just improved the intensity of screen cloth greatly.Screen box is that tower structure makes screen cloth be convenient to maintenance, check and adjust.
Figure (1) is the utility model structural representation.
Figure (2) is the fastening support pattern schematic diagram of screen cloth.
Figure (3) is that iron wire weaving manner and reinforced sheet are arranged schematic diagram.
Draw embodiment of the present utility model below
Shown in figure (1), the utility model comprises preceding vibrator (1), back vibrator (6), screen box (4), splitter box (9), water conservancy diversion drawer (8), shaft coupling (2) and motor (3), (7).Preceding vibrator and back vibrator are lays particular stress on shaft type, belongs to prior art.Forward and backward vibrator is contained in respectively between the rear and front end of screen box (4) and screen box framework two-layer up and down.Be fixed at its two ends shell and support plate (5) of vibrator fixes, and it is laid particular stress on axle and is connected with motor (3), (7) by tire shaft coupling (2).Because the motor speed difference, so the front and back vibrator is done asynchronous running, motor in this example (3) is four utmost point motors, and its rotating speed is 1430 rev/mins, and motor (7) is a two-pole machine, and its rotating speed is 2860 rev/mins, and rotating ratio is 1:2.The movement locus of screen box is similar to heart.Screen box (4) is a tower structure, and it is two-layer wide-meshed screen (12) and the fine screen mesh (16) of being fixed with respectively up and down, and two-layer screen cloth all adopts three-dimensional fastening and some supporting.Detailed structure is shown in figure (2), figure (3).On the top of wide-meshed screen (12) and the bottom interlacing of fine screen mesh (16) iron wire (13) is arranged exactly, iron wire is compiled out earrings (13a) around screen cloth, encase with crimping around the screen cloth and with iron wire, tangle with thin wire again, so just, iron wire can be connected with screen cloth, the screen cloth available thin wire segmentation in middle part is intertwined and connected.The tensioning of screen cloth is at the usefulness gib headed bolts of two directions in length and breadth (19) the pulling iron wire earrings of level and with its tensioning.In the wide-meshed screen bottom and each infall of fine screen mesh top iron wire and intersect the center of formed each diamond-shaped area and respectively be connected with a reinforced sheet (21), reinforced sheet is a round iron plate in this example, adopts bondingly to be connected with screen cloth.Each reinforced sheet on wide-meshed screen or the fine screen mesh respectively in the bottom or top by regulating bolt (20) supporting, wide-meshed screen is a lower support in other words, fine screen mesh is a upper support, forms the some supporting of many fulcrums.Each is regulated bolt and is connected on the horizontal supporting bar (17) by nut (22), regulates screwing and loosening the arc that can regulate screen cloth of bolt, and horizontal supporting bar (17) then is individually fixed on the levels framework.Be provided with splitter box (9) and water conservancy diversion drawer (8) above the rear portion of vibratory sieve, splitter box is a circulation type, and its left side is connected with drilling fluid inlet (10), and communicates with the sedimentation basin (11) of front portion.Seat is on splitter box versatilely for water conservancy diversion drawer (8), and some rounds are arranged at its bottom, and open front.After drilling fluid is full of from drilling fluid inlet inflow sedimentation basin and with it, just enter splitter box, go into the water conservancy diversion drawer from the overflow all around of water conservancy diversion drawer, hole or the open front from water conservancy diversion drawer bottom falls in the vibratory sieve then.Screen box is connected with base (18) by eight springs (14) on four angles, bottom, and the top of spring is fixed on the spring top board (15), and the spring top board then fixes with framework.
Claims (3)
1, it is a kind of that to sieve the movement locus that material uses be heart-shaped two vibrator vibratory sieves, it comprises preceding vibrator (1), back vibrator (6), screen box (4), splitter box (9), water conservancy diversion drawer (8), level Four motor (3) and second-stage electric machine (7), it is characterized in that screen box is a tower structure, it is two-layer wide-meshed screen (12) and the fine screen mesh (16) of being fixed with respectively up and down, two-layer screen cloth all adopts three-dimensional fastening and some supporting, splitter box (9) is a circulation type, water conservancy diversion drawer (8) is placed on it, the fastening supporting of described three-dimensional is that the bottom interlacing at the top of wide-meshed screen (12) and fine screen mesh (16) has iron wire (13), iron wire is reached the middle part around screen cloth be connected with screen cloth, and hold iron wire earrings (13 α) with gib head double-screw bolt (19) and with the screen cloth tensioning in the vertical tool direction of level, in the wide-meshed screen bottom and each of fine screen mesh top iron wire intersect the center of formed each diamond-shaped area and respectively be connected with a reinforced sheet (21), each reinforced sheet on wide-meshed screen or the fine screen mesh respectively in the bottom or top by regulating bolt (20) supporting, form the some supporting of many fulcrums, each bottom or top of regulating bolt is connected on the horizontal supporting bar (17) by nut (22), and the horizontal supporting bar then is individually fixed on the levels framework.
2, movement locus as claimed in claim 1 is heart-shaped two vibrator vibratory sieves, it is characterized in that preceding vibrator (1) and afterwards vibrator (6) be and lay particular stress on the shaft type vibrator.
3, movement locus as claimed in claim 1 or 2 is heart-shaped two vibrator vibratory sieves, it is characterized in that reinforced sheet (21) and being connected to of screen cloth bond or soldering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87213221 CN87213221U (en) | 1987-09-05 | 1987-09-05 | Double vibration excited screen oscillating in an orbit of heart shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87213221 CN87213221U (en) | 1987-09-05 | 1987-09-05 | Double vibration excited screen oscillating in an orbit of heart shape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87213221U true CN87213221U (en) | 1988-10-19 |
Family
ID=4827757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87213221 Withdrawn CN87213221U (en) | 1987-09-05 | 1987-09-05 | Double vibration excited screen oscillating in an orbit of heart shape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87213221U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101254501B (en) * | 2008-01-30 | 2012-04-11 | 马鞍山钢铁股份有限公司 | Combination vibration sieve |
| CN101330989B (en) * | 2005-12-13 | 2013-03-20 | 山特维克知识产权股份有限公司 | Screening arrangement |
| CN110479585A (en) * | 2019-10-08 | 2019-11-22 | 安徽清蓝环保工程有限公司 | Screening machine |
-
1987
- 1987-09-05 CN CN 87213221 patent/CN87213221U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101330989B (en) * | 2005-12-13 | 2013-03-20 | 山特维克知识产权股份有限公司 | Screening arrangement |
| CN101254501B (en) * | 2008-01-30 | 2012-04-11 | 马鞍山钢铁股份有限公司 | Combination vibration sieve |
| CN110479585A (en) * | 2019-10-08 | 2019-11-22 | 安徽清蓝环保工程有限公司 | Screening machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |