CN118065787A - Negative pressure shale shaker for well drilling - Google Patents
Negative pressure shale shaker for well drilling Download PDFInfo
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- CN118065787A CN118065787A CN202410471882.3A CN202410471882A CN118065787A CN 118065787 A CN118065787 A CN 118065787A CN 202410471882 A CN202410471882 A CN 202410471882A CN 118065787 A CN118065787 A CN 118065787A
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- 238000005553 drilling Methods 0.000 title claims abstract description 25
- 239000002002 slurry Substances 0.000 claims abstract description 81
- 238000007872 degassing Methods 0.000 claims abstract description 68
- 239000006185 dispersion Substances 0.000 claims description 51
- 238000004891 communication Methods 0.000 claims description 9
- 230000001502 supplementing effect Effects 0.000 claims description 9
- 230000005484 gravity Effects 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 14
- 239000007789 gas Substances 0.000 description 14
- 239000002912 waste gas Substances 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000007599 discharging Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 239000013589 supplement Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- Treatment Of Sludge (AREA)
Abstract
The application discloses a negative-pressure slurry vibrating screen for drilling, which relates to the technical field of slurry treatment and comprises a vibrating screen, a frame, a degassing bin, a dewatering bin, a negative-pressure fan and a dispersing bin, wherein the dispersing bin is fixed inside the degassing bin, a dispersing plate is connected in a sliding manner in the dispersing bin, a dispersing spring is arranged between the dispersing plate and the inner bottom wall of the dispersing bin, one side of the dispersing plate, which is far away from the dispersing spring, is rotatably connected with a rotating shaft, a power paddle and a dispersing paddle are coaxially fixed on the rotating shaft, the power paddle is positioned on the upper side of the dispersing paddle, and the power paddle is arranged on the upper side and the lower side of the dispersing paddle, so that the power paddle is higher in position and is not easy to be buried by slurry, the power paddle can continuously rotate when the slurry falls down, the dispersing paddle is rotated by the power of the power paddle, the dispersing paddle can continuously disperse and fly the slurry, the gas in the slurry can be more fully dispersed and the slurry can be more quickly escaped, and the degassing efficiency is improved.
Description
Technical Field
The invention relates to the technical field of slurry treatment, in particular to a negative pressure slurry vibrating screen for drilling.
Background
Currently, during the production and drilling of oil and gas, a large amount of drilling mud is produced. The chemical treatment agents used in the drilling process are more in variety, so that the waste drilling mud has high COD, deep chromaticity, high pH, more heavy metal ions and other pollution harmful substances are seriously out of standard. Waste drilling mud is one of the main sources of pollution for the oil and gas industry. In order to reduce pollution caused by drilling mud and reduce drilling cost, the drilling mud is usually recycled, and besides solid sediments such as mud, sand, broken stone and the like, the mud pumped out from the well is usually immersed with bubbles, and toxic gas in the ground can be wrapped in the bubbles, so that when the drilling mud is recycled, besides filtering the mud to remove solid impurities, the waste gas content in the mud is required to be reduced through a degassing procedure. On one hand, the specific gravity of the slurry is recovered by removing the waste gas, the viscosity performance of the slurry is stabilized, and the possibility of blowout during the recycling of the slurry is reduced; on the other hand, the damage to the body of constructors caused by toxic gas in the mud circulation process is avoided.
The invention patent of China with the publication number of CN111794702B discloses a degassing vibrating screen, which comprises a vibrating screen and a degassing device arranged below the vibrating screen, wherein the degassing device comprises a degassing bin, a pulp inlet pipe and an exhaust pipe are arranged on the upper side of the degassing bin, the pulp inlet pipe is connected with a lower discharging pipe of the vibrating screen, a high-pressure fan is arranged at one end of the exhaust pipe, which is far away from the degassing bin, an air inlet of the high-pressure fan is communicated with the exhaust pipe, a water removing mechanism is arranged on the exhaust pipe between the high-pressure fan and the degassing bin, a pulp discharging mechanism is arranged on the bottom wall of the degassing bin, the pulp discharging mechanism comprises an inner pipe communicated with the inner cavity of the degassing bin and an outer pipe sleeved outside the inner pipe, a pulp discharging groove is formed in the side wall of the inner pipe, a plug is arranged in the inner pipe and is in sliding connection with the inner pipe, a first spring is arranged between the plug and the inner pipe, and the first spring is arranged on one side, which is far away from the inner cavity of the degassing bin.
However, when the device works, the slurry is dispersed through the propeller, but because the rotating power of the propeller is the flow of the source and the slurry, the dispersing effect of the propeller on the slurry may be poor, and because the propeller is positioned close to the sealing boss, when the slurry quantity is too much to drive the sealing boss to move downwards and be communicated with the cavity, this means that a large amount of slurry is accumulated on the sealing boss, the slurry is wrapped by the propeller, so that the propeller cannot rotate to disperse the slurry, further the dispersion of waste gas in the slurry is affected, and the degassing quality and efficiency of the slurry are reduced.
Disclosure of Invention
The negative pressure slurry vibrating screen for drilling solves the problems that when slurry is wrapped around a propeller in the prior art, the propeller cannot rotate to disperse the slurry, so that the dispersion of waste gas in the slurry is affected, and the degassing quality and efficiency of the slurry are reduced.
The embodiment of the application provides a negative pressure slurry vibrating screen for drilling, which comprises a vibrating screen, a frame, a degassing bin, a dewatering bin and a negative pressure fan, wherein the vibrating screen, the degassing bin, the dewatering bin and the negative pressure fan are all arranged on the frame, the vibrating screen is positioned at the top of the frame, the degassing bin is positioned in the middle of the frame, a feeding pipe is arranged at the top of the degassing bin, the bottom of the vibrating screen is communicated with the feeding pipe of the degassing bin through a corrugated pipe, a slurry outlet pipe is arranged at the bottom of the degassing bin, the dewatering bin is positioned at one side of the degassing bin, the dewatering bin is communicated with the degassing bin through an exhaust pipe, the negative pressure fan is fixed at one side of the dewatering bin far away from the degassing bin, the negative pressure fan can work by the dewatering bin to create negative pressure in the degassing bin, the negative pressure fan is also comprises a dispersing bin, the dispersing bin is fixed inside the degassing bin, the dispersing bin is communicated with the feeding pipe, through holes communicated with the dispersing plate are further formed in the side wall of the dispersing bin, a dispersing spring is arranged between the dispersing plate and the inner bottom wall of the dispersing bin, one side of the dispersing plate far away from the dispersing spring is rotatably connected with a rotating shaft, the rotating shaft is coaxially connected with the rotating shaft, and the rotating shaft is coaxially arranged on the dispersing paddle and can rotate through the rotating shaft and the rotating shaft, and the rotating paddle is driven by the rotating and the rotating blade to rotate, and the rotating blade can rotate and the rotating blade.
Further, the inner pipe is further arranged in the pulp outlet pipe, the inner pipe is connected with a plug in a sliding manner, the plug is connected with the inner bottom wall of the inner pipe through a pulp outlet spring, a communication hole communicated with the pulp outlet pipe is formed in the side wall of the inner pipe, the plug is blocked and plugged through the elastic force of the pulp outlet spring in a non-pressure state, the dispersing plate can be used for blocking the feeding pipe through the elastic force of the dispersing spring, and negative pressure inside the degassing bin is conveniently created by the negative pressure fan.
Further, the dispersing paddles comprise shaft bodies and dispersing paddles, the shaft bodies are fixedly connected with the rotating shaft in a coaxial mode, the number of the dispersing paddles is 6-8, the dispersing paddles are arranged on the side wall of the shaft body in an array mode by taking the shaft bodies as the shaft circumference, and each dispersing paddle is connected with the shaft body in a rotating mode.
Further, the maximum rotation angle of each dispersing blade on the shaft body is 30 degrees.
Further, each dispersing blade is provided with a balancing weight.
Further, the weights of the plurality of dispersing blades gradually increase in the clockwise direction.
Further, each balancing weight is a sphere, an accommodating groove for accommodating the balancing weight is formed in each dispersing blade, and the length of the accommodating groove is 4-6 times of the diameter of the balancing weight.
Further, every the stay cord is all installed to the holding tank, the stay cord is the elastic cord, and the one end and the holding tank of stay cord are close to the inner wall fixed connection of axis body, the other end and the balancing weight fixed connection of stay cord, and the biggest tensile length of stay cord is not greater than the length of holding tank.
Further, install horizontal grid board in the dewatering bin, ceramic filler is filled to grid board upside in the dewatering bin, and the outlet pipe is installed to dewatering bin bottom, installs the control valve on the outlet pipe, negative pressure fan's air extraction end and dewatering bin upside intercommunication.
Further, the one end that the exhaust tube was kept away from to the degasification storehouse still installs the air supplement pipe, and the internal diameter of air supplement pipe is less than the internal diameter of exhaust tube, still installs the check valve that supplies gas to get into the degasification storehouse from the external space on the air supplement pipe, and the air supplement pipe can avoid the negative pressure in the degasification storehouse that negative pressure fan built too big, leads to mud unable to remove through self gravity to block up and compress out thick liquid spring and make inner tube and play thick liquid pipe through the intercommunicating pore intercommunication.
One or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages:
Firstly, the upper and lower coaxial power paddles and the dispersing paddles are arranged, so that the power paddles are higher in position and not easy to be buried by slurry, the power paddles can continuously rotate when the slurry falls, and the dispersing paddles are rotated by the power of the power paddles, so that the slurry can be continuously dispersed and thrown away, the slurry can be more fully dispersed and thrown away, gas in the slurry can be more quickly escaped, and the degassing efficiency is improved;
Secondly, the dispersing blades are rotatably connected to the shaft body, and can swing up and down according to the change of the rotating speed, so that the slurry can be more effectively thrown out from the periphery of the shaft body, the throwing efficiency is improved, the slurry is prevented from accumulating on the dispersing blades, and the turbulence generated by the swing and the rotation of the dispersing blades is beneficial to destroying bubbles in the slurry, so that the release speed of gas is accelerated;
Thirdly, the dynamic angle adjustment of the dispersing blades in the rotating process can be realized by adding the balancing weights with different weights on different dispersing blades, the dispersing blades can reach the optimal swinging angle under different rotating speeds so as to maximize the effects of slurry throwing and gas release, and the swinging angle change of different dispersing blades is beneficial to generating more complex flow fields in slurry, so that the mixing and stirring effects are enhanced, the processing range of the dispersing blades on the slurry can be increased, and the swinging characteristics of the dispersing blades can be adjusted by adjusting the positions and the weights of the balancing weights so as to adapt to different working conditions and slurry characteristics, thereby being capable of adapting to various complex application scenes and improving the overall working efficiency;
Fourthly, the dynamic distribution of the mass of the dispersing blade can be realized through the sliding of the balancing weight in the accommodating groove, in the rotating process of the shaft body, the balancing weight slides from the position close to the shaft body to the position far away from the shaft body, the mass center position and the mass distribution of the dispersing blade are changed, the swing amplitude of the blade and the effect of throwing out the slurry are further enhanced, the sliding of the balancing weight enables the dispersing blade to have larger swing amplitude and centrifugal force when rotating, the slurry is more effectively thrown out, the distance and uniformity of throwing out the slurry are improved, waste gas in the slurry is more easily separated, and the treatment efficiency of waste gas in the slurry is further improved.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a perspective cross-sectional view of the present invention;
FIG. 3 is an enlarged view of FIG. 2 at A;
FIG. 4 is a schematic diagram illustrating a first working state in a dispersion bin according to a second embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating a second working state in a dispersion bin according to a second embodiment of the present invention;
FIG. 6 is a schematic perspective view of a dispersing blade according to a third embodiment of the present invention;
FIG. 7 is a schematic view of a rotating state structure of a dispersing blade according to a third embodiment of the present invention;
fig. 8 is a perspective structural sectional view of a dispersing blade in a fourth embodiment of the present invention.
In the figure: 100. a vibrating screen; 200. a frame; 210. a degassing bin; 211. a feed pipe; 212. a bellows; 213. a slurry outlet pipe; 214. an inner tube; 215. an exhaust pipe; 216. blocking; 217. a communication hole; 218. a pulp outlet spring; 219. an air supplementing pipe; 220. a dewatering bin; 221. a grating plate; 222. a water outlet pipe; 230. a negative pressure fan; 300. a dispersion bin; 310. a through hole; 320. a dispersion plate; 330. a dispersion spring; 340. a rotating shaft; 350. a power paddle; 360. dispersing paddles; 361. a shaft body; 362. dispersing paddles; 363. balancing weight; 364. a receiving groove; 365. and (5) pulling the rope.
Detailed Description
In order that the application may be readily understood, a more complete description of the application will be rendered by reference to the appended drawings; the preferred embodiments of the present application are illustrated in the drawings, but the present application can be embodied in many different forms and is not limited to the embodiments described herein; rather, these embodiments are provided so that this disclosure will be thorough and complete.
It should be noted that the terms "vertical", "horizontal", "upper", "lower", "left", "right", and the like are used herein for illustrative purposes only and do not represent the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Embodiment one: as shown in fig. 1-3, the embodiment of the application provides a drilling negative pressure slurry vibrating screen, which comprises a vibrating screen 100, a frame 200, a degassing bin 210, a dewatering bin 220 and a negative pressure fan 230, wherein the vibrating screen 100, the degassing bin 210, the dewatering bin 220 and the negative pressure fan 230 are all installed on the frame 200, the vibrating screen 100 is positioned at the top of the frame 200, the degassing bin 210 is positioned in the middle of the frame 200, a feeding pipe 211 is installed at the top of the degassing bin 210, the bottom of the vibrating screen 100 is communicated with the feeding pipe 211 of the degassing bin 210 through a corrugated pipe 212, the vibrating screen 100 can perform the operation of selecting the vibrating screen 100, the solid sediments such as mud, sand, broken stone and the like brought by drilling slurry from the underground are discharged through an upper discharge port of the vibrating screen 100, the filtered slurry flows into the feeding pipe 211 through a lower discharge pipe of the vibrating screen 100, which is not more than the prior art, a slurry outlet pipe 213 is installed at the bottom of the degassing bin 210, the dewatering bin 220 is positioned at one side of the degassing bin 210, the dewatering bin 220 is communicated with the degassing bin 210 through the exhaust pipe 215, the negative pressure fan 230 is fixed at one side of the dewatering bin 220 far away from the degassing bin 210, the negative pressure fan 230 can build negative pressure in the degassing bin 210 through the dewatering bin 220, the dewatering bin 220 further comprises a dispersing bin 300, the dispersing bin 300 is fixed in the degassing bin 210, the dispersing bin 300 is communicated with the feeding pipe 211, a through hole 310 communicated with the inside of the degassing bin 210 is further formed in the side wall of the dispersing bin 300, a dispersing plate 320 is connected in a sliding manner in the dispersing bin 300, a dispersing spring 330 is installed between the dispersing plate 320 and the inner bottom wall of the dispersing bin 300, a rotating shaft 340 is rotatably connected at one side of the dispersing plate 320 far away from the dispersing spring 330, the rotating shaft 340 is coaxial with the feeding pipe 211, a power paddle 350 and a dispersing paddle 360 are coaxially fixed on the rotating shaft 340, and the power paddle 350 is positioned at the upper side of the dispersing paddle 360, when the slurry enters the dispersion bin 300 through the feeding pipe 211, the power paddles 350 can be driven to rotate through the falling of the slurry, the rotating shafts 340 and the dispersion paddles 360 can be driven to rotate after the power paddles 350 rotate, and the dispersion paddles 360 can throw and disperse the slurry on the dispersion plate 320;
The mud filtered out through shale shaker 100 gets into inlet pipe 211, along with the piling up of mud, the gravity that dispersion board 320 received is bigger and bigger, until through piling up the gravity of mud drive dispersion board 320 and move down and compress dispersion spring 330, this moment along with the continuation inflow of mud, can drive power oar 350 rotation, and then drive axis of rotation 340 and dispersion oar 360 rotation through power oar 350, when dispersion oar 360 rotates, can throw the mud and fly away the dispersion, can also strike mud, the waste gas in the mud of being convenient for gets into the degassing bin 210 inside, the rethread negative pressure fan 230 is discharged waste gas through dewatering bin 220 to follow-up waste gas treatment device in handle.
Preferably, the inner pipe 214 is further installed in the slurry outlet pipe 213, the plug 216 is slidably connected in the inner pipe 214, the plug 216 is connected with the inner bottom wall of the inner pipe 214 through the slurry outlet spring 218, a communication hole 217 which is communicated with the slurry outlet pipe 213 is formed in the side wall of the inner pipe 214, the plug 216 can plug the communication hole 217 through the elasticity of the slurry outlet spring 218 in a non-pressure state, the dispersion plate 320 can plug the feed pipe 211 through the elasticity of the dispersion spring 330, the negative pressure fan 230 is convenient for creating negative pressure in the degassing bin 210, when more and more slurry is in the degassing bin 210, the plug 216 can move downwards through the gravity of the slurry and compress the slurry outlet spring 218, so that the slurry can enter the slurry outlet pipe 213 through the communication hole 217 and be discharged to the next process through the slurry outlet pipe 213 for treatment.
Preferably, a horizontal grid plate 221 is installed in the dewatering bin 220, ceramic filler is filled on the upper side of the grid plate 221 in the dewatering bin 220, a water outlet pipe 222 is installed at the bottom of the dewatering bin 220, a control valve (not shown in the figure) is installed on the water outlet pipe 222, the air suction end of the negative pressure fan 230 is communicated with the upper side of the dewatering bin 220, certain water vapor can be removed through waste gas in the dewatering bin 220 after the ceramic filler is filled, and then the water vapor is discharged to the waste gas treatment device through the negative pressure fan 230, and when the water vapor absorbed by the ceramic filler is too much, the water vapor can be condensed into water drops, the lower side of the grid plate 221 in the dewatering bin 220 is stored, and the water can be discharged through opening the control valve, which is the prior art, and will not be repeated.
Preferably, a gas supplementing pipe 219 is further installed at one end of the degassing bin 210 far away from the exhaust pipe 215, the inner diameter of the gas supplementing pipe 219 is smaller than the inner diameter of the exhaust pipe 215, a one-way valve (not shown in the figure) for allowing gas to enter the degassing bin 210 from the external space is further installed on the gas supplementing pipe 219, the gas supplementing pipe 219 can avoid that the negative pressure in the degassing bin 210 created by the negative pressure fan 230 is too high, so that slurry cannot move to block 216 through self gravity and compress the slurry outlet spring 218, and the inner pipe 214 is communicated with the slurry outlet pipe 213 through the communication hole 217.
The technical scheme provided by the embodiment of the application at least has the following technical effects or advantages:
Through setting up upper and lower two coaxial power oar 350 and dispersion oar 360, the position of power oar 350 is higher, is difficult for being buried by the mud for power oar 350 can rotate continually when the mud whereabouts, and dispersion oar 360 receives power of power oar 350 and rotates, makes the dispersion that will be sustainable get rid of and fly away the mud, makes the mud can more fully be dispersed and get rid of and fly away, helps the gas in the mud to escape more fast, has improved the degassing efficiency.
Embodiment two: to further increase the dispersion effect of the dispersion paddles 360 on the slurry, as shown in fig. 4-5, a further improvement is made in the first embodiment:
Preferably, the dispersing paddles 360 include a shaft body 361 and dispersing paddles 362, the shaft body 361 is fixedly connected with the rotating shaft 340 coaxially, the number of the dispersing paddles 362 is 6-8, the dispersing paddles 362 are arranged on the side wall of the shaft body 361 around the shaft body 361, and each dispersing paddle 362 is rotatably connected with the shaft body 361.
Preferably, the maximum rotation angle of each dispersing blade 362 on the shaft 361 is 30 degrees.
Since the rotation of the dispersing blade 360 is driven by the contact of the power blade 350 with the slurry, and the amount of the slurry passing through the power blade 350 is not constant, the rotation speed of the power blade 350 and the dispersing blade 360 is always changed, and therefore the dispersing blade 362 is rotatably connected to the shaft 361, when the rotation speed of the shaft 361 is faster, the rotation angle of the dispersing blade 362 is larger, the rotation speed is smaller, and the rotation angle of the dispersing blade 362 is smaller, so that the dispersing blade 362 can swing up and down on the shaft 361 on the premise that the rotation speed of the shaft 361 is changed.
The technical scheme provided by the embodiment of the application at least has the following technical effects or advantages:
By rotationally connecting the dispersing blades 362 to the shaft 361, the dispersing blades 362 can swing up and down according to the change of the rotation speed, so that the slurry can be more effectively thrown out from the periphery of the shaft 361, the throwing-out efficiency is improved, the slurry is prevented from accumulating on the dispersing blades 362, and the turbulence generated by the swing and rotation of the dispersing blades 362 is helpful to destroy bubbles in the slurry, so that the release speed of the gas is accelerated.
Embodiment III: since the gravity of each dispersing blade 362 in the second embodiment is the same, when the rotation speed of the shaft 361 changes, the swing amplitude of each dispersing blade 362 is similar, and the processing range of the slurry is smaller, so as to solve the above problem, as shown in fig. 6 to 7, further improvement is made to the second embodiment:
Preferably, a weight 363 is mounted on each of the dispersing blades 362.
Preferably, the weights 363 on the plurality of dispersing blades 362 gradually increase in a clockwise direction.
The technical scheme provided by the embodiment of the application at least has the following technical effects or advantages:
Through adding the balancing weights 363 of different weights on different dispersion paddles 362, can realize the dynamic angle adjustment of dispersion paddles 362 in the rotation process, under different rotational speeds, dispersion paddles 362 can all reach the optimal swing angle, in order to maximize the effect that mud was thrown out and gas released, and different dispersion paddles 362 swing angle changes help producing more complicated flow field in mud, thereby reinforcing the effect of mixing and stirring, can also increase dispersion paddles 362 to the processing scope of mud, and can adjust dispersion paddles 362's swing characteristic through adjusting balancing weights 363 position and weight, in order to adapt to different operating conditions and mud characteristic, can adapt to various complicated application scenarios, and improve holistic work efficiency.
Embodiment four: in order to further optimize the swing amplitude of the dispersing blade 362 to strengthen the dispersion effect of the dispersing blade 362 on the slurry, as shown in fig. 8, the third embodiment is further improved:
Preferably, each of the balancing weights 363 is a sphere, and each of the dispersing blades 362 is internally provided with a receiving slot 364 for receiving the balancing weight 363, and the length of the receiving slot 364 is 4-6 times the diameter of the balancing weight 363.
Preferably, each accommodating groove 364 is internally provided with a pull rope 365, the pull rope 365 is an elastic rope, one end of the pull rope 365 is fixedly connected with the inner wall of the accommodating groove 364, which is close to the shaft body 361, the other end of the pull rope 365 is fixedly connected with the balancing weight 363, the maximum stretching length of the pull rope 365 is not greater than the length of the accommodating groove 364, when the shaft body 361 is static, the balancing weight 363 is pulled to one side of the accommodating groove 364, which is close to the shaft body 361, through stretching tension, when the shaft body 361 rotates, the centrifugal force acts on the balancing weight 363, the pulling force of the pull rope 365 can be overcome, the balancing weight 363 slides towards one side of the sliding groove, which is far away from the shaft body 361, and when the pull rope 365 is stretched to the maximum stretching length, the balancing weight 363 can be prevented from contacting with the side wall of the sliding groove, which is far away from the shaft body 361.
The technical scheme provided by the embodiment of the application at least has the following technical effects or advantages:
Through the slip of balancing weight 363 in holding tank 364, can realize the dynamic distribution of dispersion paddle 362 quality, in axis body 361 rotation process, balancing weight 363 slides to keeping away from axis body 361 position from being close to axis body 361 position, the barycenter position and the quality distribution of dispersion paddle 362 have been changed, and then the swing amplitude of strengthening blade and the effect of throwing away the mud, the slip of balancing weight 363 makes dispersion paddle 362 have bigger swing amplitude and centrifugal force when rotatory, help more effectively to throw away the mud, and improve distance and the homogeneity of throwing away the mud, make the waste gas in the mud more separated, and then improved the treatment effeciency to waste gas in the mud.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a negative pressure shale shaker for well drilling, includes shale shaker (100), frame (200), degasification storehouse (210), dewatering storehouse (220) and negative pressure fan (230), shale shaker (100), degasification storehouse (210), dewatering storehouse (220) and negative pressure fan (230) are all installed on frame (200), shale shaker (100) are located frame (200) top, and degasification storehouse (210) are located frame (200) middle part, and feed pipe (211) are installed at degasification storehouse (210) top, and feed pipe (212) are installed at vibrating screen (100) bottom, are linked together through bellows (212) and feed pipe (211) of degasification storehouse (210), go out thick liquid pipe (213) are installed at degasification storehouse (210) bottom, dewatering storehouse (220) are located one side of degasification storehouse (210), and dewatering storehouse (220) are linked together through exhaust pipe (215) with degasification storehouse (210), and negative pressure fan (230) are fixed in one side that the degasification storehouse (210) kept away from, and negative pressure fan (230) work can be for the degasification storehouse (210) in the middle part, degasification storehouse (210) are installed, and the feed pipe (211) are dispersed in that it is fixed in feed pipe (300) and dispersed in (300) and is fixed in (300), the side wall of dispersion storehouse (300) is last still offered with the inside through-hole (310) of intercommunication of degasification storehouse (210), sliding connection has dispersion board (320) in dispersion storehouse (300), install dispersion spring (330) between dispersion board (320) and the interior bottom wall of dispersion storehouse (300), one side rotation that dispersion spring (330) were kept away from to dispersion board (320) is connected with axis of rotation (340), and axis of rotation (340) are coaxial with inlet pipe (211), coaxial power oar (350) and dispersion oar (360) of being fixed with on axis of rotation (340), and power oar (350) are located dispersion oar (360) upside, when mud gets into dispersion storehouse (300) through inlet pipe (211), can drive power oar (350) rotation through the whereabouts of mud, can drive axis of rotation (340) and dispersion oar (360) rotation after power oar (350) rotation, and dispersion oar (360) rotation can be with the mud on dispersion board (320) get rid of the dispersion.
2. The negative pressure shale shaker for well drilling according to claim 1, wherein the inner pipe (214) is further installed in the slurry outlet pipe (213), a plug (216) is slidably connected in the inner pipe (214), the plug (216) is connected with the inner bottom wall of the inner pipe (214) through a slurry outlet spring (218), a communication hole (217) communicated with the slurry outlet pipe (213) is formed in the side wall of the inner pipe (214), the plug (216) can be used for blocking the communication hole (217) through the elasticity of the slurry outlet spring (218) under the pressureless state, the dispersion plate (320) can be used for blocking the feed pipe (211) through the elasticity of the dispersion spring (330), and the negative pressure fan (230) is convenient for creating negative pressure in the degassing bin (210).
3. The negative pressure shale shaker as claimed in claim 1, wherein the dispersing paddles (360) comprise a shaft body (361) and dispersing paddles (362), the shaft body (361) is fixedly connected with the rotating shaft (340) coaxially, the number of the dispersing paddles (362) is 6-8, the dispersing paddles (362) are arrayed on the side wall of the shaft body (361) around the shaft body (361), and each dispersing paddle (362) is rotatably connected with the shaft body (361).
4. A negative pressure shale shaker for drilling as claimed in claim 3, wherein the maximum rotation angle of each dispersing blade (362) on the shaft (361) is 30 degrees.
5. A negative pressure shale shaker for drilling as claimed in claim 3, wherein a counterweight (363) is mounted on each dispersing blade (362).
6. The negative pressure shale shaker for drilling as claimed in claim 5, wherein the weights (363) of the plurality of dispersing blades (362) gradually increase in the clockwise direction.
7. The negative pressure shale shaker as claimed in claim 5, wherein each of the balancing weights (363) is a sphere, and each of the dispersing blades (362) is internally provided with a receiving slot (364) for receiving the balancing weight (363), and the length of the receiving slot (364) is 4-6 times the diameter of the balancing weight (363).
8. The negative pressure shale shaker for well drilling of claim 7, wherein, each holding tank (364) is internally provided with a pull rope (365), the pull rope (365) is an elastic rope, one end of the pull rope (365) is fixedly connected with the inner wall of the holding tank (364) close to the shaft body (361), the other end of the pull rope (365) is fixedly connected with the balancing weight (363), and the maximum stretching length of the pull rope (365) is not greater than the length of the holding tank (364).
9. The negative pressure shale shaker for well drilling of claim 1, wherein install horizontal grid board (221) in dewatering storehouse (220), ceramic packing is filled to grid board (221) upside in dewatering storehouse (220), and outlet pipe (222) are installed to dewatering storehouse (220) bottom, installs the control valve on outlet pipe (222), the air extraction end of negative pressure fan (230) communicates with dewatering storehouse (220) upside.
10. The negative pressure shale shaker for well drilling according to claim 2, wherein, the degassing bin (210) is further provided with a gas supplementing tube (219) at one end far away from the exhaust tube (215), the inner diameter of the gas supplementing tube (219) is smaller than that of the exhaust tube (215), the gas supplementing tube (219) is further provided with a one-way valve for gas to enter the degassing bin (210) from the external space, the gas supplementing tube (219) can avoid the excessive negative pressure in the degassing bin (210) created by the negative pressure fan (230), so that slurry cannot move to block (216) by self gravity and compress the slurry outlet spring (218) to enable the inner tube (214) to be communicated with the slurry outlet tube (213) through the communication hole (217).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410471882.3A CN118065787A (en) | 2024-04-19 | 2024-04-19 | Negative pressure shale shaker for well drilling |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410471882.3A CN118065787A (en) | 2024-04-19 | 2024-04-19 | Negative pressure shale shaker for well drilling |
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| US20220307336A1 (en) * | 2021-03-24 | 2022-09-29 | Southwest Petroleum University | Negative pressure shale shaker integrated with negative pressure generation and gas-liquid separation |
| CN219988019U (en) * | 2023-04-13 | 2023-11-10 | 苏州同济材料科技股份有限公司 | Pneumatic conveying stirring device for dry-mixed mortar |
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| CN207500038U (en) * | 2017-11-14 | 2018-06-15 | 刘洪听 | A kind of power-assisted power generator |
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