CN210738503U - Forced drilling slag-liquid separator - Google Patents
Forced drilling slag-liquid separator Download PDFInfo
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- CN210738503U CN210738503U CN201921824297.8U CN201921824297U CN210738503U CN 210738503 U CN210738503 U CN 210738503U CN 201921824297 U CN201921824297 U CN 201921824297U CN 210738503 U CN210738503 U CN 210738503U
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Abstract
The utility model discloses a forced drilling slag-liquid separator, set up and communicating slag liquid kinetic energy attenuation case, sediment case and sediment conveyor in proper order including top-down, still including the mud pipe that is used for sending into the drilling slag liquid for the drilling slag hydraulic energy attenuate again, shunt and the grid of the screening of bold drilling slag, be used for the drilling fluid backward flow to the time thick liquid groove of drilling after the output separation, be used for further desilting's water conservancy whirl sand removal device. The utility model discloses deposit the rock sediment in the drilling operation, remove slag, remove sand process, accomplish simultaneously in an equipment, have advantages such as compact structure, small, safe and reliable, easily operation.
Description
Technical Field
The utility model relates to an engineering driller technical field, concretely relates to compulsory well drilling slag-liquid separator.
Background
In the prior art, slag and liquid in the flushing liquid of a large-scale engineering drilling machine are mainly separated through a mud sedimentation tank for sedimentation, and meanwhile, sand pumps and hydrocyclone units are independently arranged on the periphery to assist in separating sand in the flushing liquid.
Chinese patent No. CN209195306U discloses a closed circulation system for drilling fluid of small and medium sized drilling machines, which optimizes the circulation system of drilling fluid, but has a complex structure, large equipment, and dispersed arrangement of components, and only has precipitation and desanding functions, and cannot separate fine particles in drilling fluid, and the separation and deslagging effects are not ideal, and cannot be applied to some occasions with special requirements.
SUMMERY OF THE UTILITY MODEL
Problem to exist among the prior art, the utility model provides a forced drilling slag-liquid separator has solved the big weak point of drilling slag-liquid separator area among the drilling construction process, compact structure, small, convenient operation.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a forced drilling slag-liquid separator comprises a slag-liquid kinetic energy attenuation box, a sediment box and a sediment conveying device which are arranged from top to bottom and are sequentially communicated, wherein the slag-liquid kinetic energy attenuation box is a hollow box body with an opening at one end and a closed end; one end of the mud pipe is used for being connected with a drilling machine mud outlet pipe of the drilling reverse circulation system, and the other end of the mud pipe is positioned at the opening end of the slag-liquid kinetic energy attenuation box; the grating is arranged between the slag liquid kinetic energy attenuation box and the sediment box and is used for re-attenuation and shunt of drilling slag liquid kinetic energy and screening of large drilling slag; and the outlet of the slurry return tank is used for outputting the separated drilling fluid to flow back to the drilling well.
Further, the utility model discloses still include a hydrocyclone device that removes sand, hydrocyclone device includes a hydrocyclone and dive grit pump, dive grit pump set up in back the thick liquid inslot, hydrocyclone's thick liquid entry with dive grit pump's thick liquid export is connected through the feed liquor pipe, hydrocyclone's drain pipe draw forth extremely back the export of thick liquid groove.
Specifically, the lower part of the slag-liquid kinetic energy attenuation box and the upper part of the slag settling box are connected into a whole, a slurry outlet of the slag-liquid kinetic energy attenuation box corresponds to a slurry inlet of the slag settling box, and the grating plate is horizontally fixed in the slag-liquid kinetic energy attenuation box or the slag settling box.
Preferably, the grid plates are steel grid plates in order to optimize the shunting and screening effects and to ensure the strength of the grid plates. However, the grid plate can be flexibly selected according to actual conditions, and is not limited to the steel grid plate.
Preferably, the sediment conveying device is a screw conveyor.
Specifically, the upper part of the screw conveyor is connected with the bottom of the sediment box into a whole, a sediment inlet of the screw conveyor corresponds to a sediment outlet of the sediment box, and a gate is arranged at an outlet end of the screw conveyor.
Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses need not set up solitary mud sedimentation tank, concentrate sediment liquid kinetic energy attenuation case, sediment case and sediment conveyor and arrange, therefore the area that occupies reduces greatly, compact structure, the operation of being convenient for. The utility model discloses at first utilize sediment liquid kinetic energy attenuation case will be followed the kinetic energy of the well drilling sediment liquid that the mud pipe sent out and attenuate by a wide margin, the effective operation of the follow-up sediment of being convenient for, then utilize the check board to carry out prefiltering to well drilling sediment liquid, and then utilize the sediment case to deposit, remove the sediment to discharge by sediment conveyor and bore the sediment. For the operation with higher requirement on the drilling fluid which flows back to the well drilling, the hydrocyclone can be used for further removing fine sand particles, thereby achieving better separation effect. The utility model discloses can deposit the rock sediment in the drilling operation, remove the sediment process and accomplish simultaneously in an equipment, have advantages such as compact structure, small, separation effect are good, easily operation, the less operation occasion of specially adapted drilling operation and working area on water.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the sediment transport unit in FIG. 1;
fig. 3 is a schematic structural view of the grid of fig. 1.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 3. As shown in figure 1, the utility model provides a forced drilling slag-liquid separator, which comprises a slag-liquid kinetic energy attenuation box 1, a sediment box 3 and a sediment conveying device 4 which are arranged from top to bottom and are communicated in sequence.
The slag liquid kinetic energy attenuation box 1 is a hollow box body with an opening at one end and a closed end, the closed end of the hollow box body is used for blocking drilling slag liquid, so that the kinetic energy of the drilling slag liquid is greatly attenuated to facilitate subsequent treatment, a mud pipe 5 is arranged at the open end of the hollow box body, one end of the mud pipe 5 is used for being connected with a drilling machine mud outlet pipe (shown as B in figure 1) of a drilling reverse circulation system, and the other end, namely the tail end of the mud pipe, is arranged at the open end of the slag liquid kinetic energy attenuation box 1. The end of the mud pipe can be fixed in position by being fixed to the slag-liquid kinetic energy attenuation tank 1 or any other suitable means. The lower part of the slag-liquid kinetic energy attenuation box 1 is connected with the upper part of the sediment box 3 into a whole, and the positions of a slurry outlet of the slag-liquid kinetic energy attenuation box 1 correspond to the positions of a slurry inlet of the sediment box 3. Preferably, the inlet end of the mud pipe 5 and the mud outlet pipe of the drilling machine can be butted through a quick joint 6, so that the mud pipe can be quickly disassembled and assembled on the premise of ensuring the sealing requirement. Furthermore, according to actual conditions, other common connection modes can be selected between the inlet end of the mud pipe 5 and the mud outlet pipe of the drilling machine, and the protection scope of the utility model is within the scope of the invention.
Furthermore, a grid plate 2 is arranged between the slag-liquid kinetic energy attenuation box 1 and the sediment box 3, and the drilling slag liquid blocked by the slag-liquid kinetic energy attenuation box 1 flows back to the grid plate 2 below the slag-liquid kinetic energy attenuation box 1, so that the functions of further attenuating the kinetic energy of the drilling slag liquid, shunting and screening and filtering large drilling slag are achieved. The utility model discloses so-called check board sets up between sediment liquid kinetic energy attenuation case and sediment case, indicates that the check board can play the screening filtering capability of bold drilling slag between sediment liquid kinetic energy attenuation case and sediment case can. Preferably, the grating 2 is horizontally fixed in the slag liquid kinetic energy attenuation box 1 or the slag settling box 3. Of course, the grid plate can also be arranged at the joint surface between the slag liquid kinetic energy attenuation box and the sediment box under the condition of ensuring the sealing. In this embodiment, in order to optimize the diversion and screening effects, the grid plate 2 is preferably a steel grid plate, as shown in fig. 3, the steel grid plate is a specially-made large-particle slag screening device, which can attenuate the kinetic energy of the liquid flow of the slag slurry, make the liquid flow evenly distributed into the grids, force the liquid flow to move downwards, and filter the large rock mass, thereby ensuring the normal operation of the sediment conveying device 4. It should be noted that the setting position of the grid plate 2 can be adjusted according to the actual situation, and the type and material can also be flexibly selected according to the actual situation, without being limited to the form of the embodiment.
Further, the utility model discloses still include slurry return tank 7 and hydraulic cyclone sand removal device. The slurry return groove 7 is communicated with an overflow port of the sediment tank 3, drilling slag liquid overflowing from the overflow port flows into the slurry return groove 7, an outlet of the slurry return groove 7 is used for outputting the separated drilling liquid to flow back to a drilling well, and a box body of the sediment tank 3 is connected with a box body of the slurry return groove 7 into a whole.
As shown in fig. 1, the hydrocyclone sand removal device comprises a hydrocyclone 9 and a submersible sand pump 8. The submerged sand pump 8 is arranged in the slurry return tank 7, preferably, the submerged sand pump 8 is arranged in the slurry return tank 7 and close to the overflow port of the sediment tank 3, and the base of the submerged sand pump is fixedly connected with the slurry return tank 7. The slurry inlet of the hydrocyclone 9 is connected with the slurry outlet of the submersible sand pump 8 through a liquid inlet pipe 10, and a liquid outlet pipe 11 of the hydrocyclone 9 is led out to the outlet of the slurry return groove 7. The submerged sand pump 8 sucks the settled drilling slag liquid from the bottom of the slurry returning groove 7 and pumps the drilling slag liquid into the hydrocyclone 9 for further separation treatment. The hydraulic cyclone sand removal device is used for separating fine sand particles in the drilling fluid which is used for backflow after large drilling residues are precipitated and screened, so that the backflow drilling fluid has high quality. The operation with low requirement on the returned drilling fluid can save a hydraulic cyclone sand removal device.
The operating principle of the hydrocyclone 9 is as follows: by adopting a centrifugal sedimentation separation mode, drilling slag liquid enters the cylindrical part from the liquid inlet pipe 10 to form a rotational flow, and is separated due to different densities or particle sizes under the action of inertial centrifugal force. The hydrocyclone 9 can separate and discharge fine sand in the drilling slag liquid, and can carry out classification, separation and concentration on a plurality of immiscible slurries, and the separated drilling slag liquid is led to the outlet of the slurry return tank 7 and flows back to the drilling along with the rest drilling slag liquid after deslagging. Preferably, the hydrocyclone 9 is mounted integrally with the drilling mud separator, as shown in fig. 1, the hydrocyclone 9 may be fixed to the outer side of the sediment tank 3. According to the actual conditions, the setting position of the hydrocyclone can be properly adjusted, and all equivalent alternative modes are all within the protection scope of the utility model.
Preferably, in this embodiment, the sediment conveying device 4 is a screw conveyor. Fig. 2 is a sectional view of the sediment transport unit taken along the line a-a, and the screw conveyor will be described in detail with reference to fig. 2.
The screw conveyor mainly includes a trough 12, a screw, a driving mechanism, and a gate 15. The upper part of the screw conveyor is connected with the bottom of the sediment box 3 into a whole, and the sediment inlet of the screw conveyor corresponds to the sediment outlet of the sediment box 3. Specifically, the upper end of the machine tank 12 is connected with the bottom of the sludge tank 3 as a whole. The screw mainly comprises a screw blade 14 and a screw driving shaft 13, and the screw blade 14 is arranged around the screw driving shaft 13. The driving device of the screw driving shaft mainly comprises a driving motor 17 and a sealed bearing box 16, and the screw driving shaft 13 is connected with an output shaft of the driving motor 17 through a universal joint 19. Preferably, in this embodiment, the driving motor 17 is a low-speed large-torque hydraulic motor, which has the advantages of large driving torque, overload protection, small size, and the like, and as other embodiments, other types of driving motors may be used; preferably, the sealed bearing housing 16 employs a dedicated floating seal ring to prevent precipitated high hardness sanded rock debris from entering the bearing cavity and damaging the bearing, and as an alternative embodiment, the sealed bearing housing may be of another type to meet the requirements. Screw conveyors are well established conveying devices and their drive mechanisms and other details are not described in detail herein.
The outlet end of the screw conveyor is provided with a gate 15 which is driven to open and close by a gate driving device. The gate driving device is a driving device commonly used in the art, and will not be described in detail herein, and it is within the scope of the present invention to adopt a hydraulic cylinder or an electric device.
Generally, with the utility model discloses supporting power and control system effect down, when needing to remove sand, arrange the sediment, control hydrocyclone and submerged sandstone pump, screw conveyer's screw drive axle drive arrangement and gate drive arrangement work respectively by power and control system, during the ejection of compact, the gate is opened, and during the shut down, the gate is closed to prevent that the thick liquid from leaking.
The utility model discloses a theory of operation does: the drilling reverse circulation system is lifted to the drilling slag liquid (slurry slag liquid) of the ground drilling machine through the drill rod and connected into the mud pipe, the drilling slag liquid is sprayed to the closed end of the slag liquid kinetic energy attenuation box from the outlet end of the mud pipe and is blocked, the jet flow kinetic energy is attenuated greatly and flows back to the steel grating plate below the slag liquid kinetic energy attenuation box in a reverse direction to be shunted, the liquid flow velocity is further attenuated, and the drilling slag liquid uniformly and naturally falls into the slag settling box below the steel grating plate after passing through the steel grating plate. And drilling slag in the drilling slag liquid is precipitated in the sediment tank, the drilling slag is discharged by the screw conveyor, and the drilling slag liquid separated by precipitation overflows from an overflow port at the upper part of the sediment tank and enters the slurry return tank. The submerged sand pump absorbs the drilling slag liquid from the bottom of the slurry return tank and pumps the drilling slag liquid into the hydrocyclone, and the hydrocyclone separates out fine sand in the drilling slag liquid, then the fine sand is led to the outlet of the slurry return tank and flows back to the drilling machine along with the rest drilling fluid after deslagging. The utility model discloses a well drilling separator can be with large granule bore sediment from the drilling fluid separation, and the sand of part fine particle also can constantly be separated to cyclic utilization.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (7)
1. A forced drilling slag-liquid separator is characterized by comprising a slag-liquid kinetic energy attenuation box, a sediment box and a sediment conveying device which are arranged from top to bottom and are sequentially communicated, wherein the slag-liquid kinetic energy attenuation box is a hollow box body with an opening at one end and a closed end; one end of the mud pipe is used for being connected with a drilling machine mud outlet pipe of the drilling reverse circulation system, and the other end of the mud pipe is positioned at the opening end of the slag-liquid kinetic energy attenuation box; the grating is arranged between the slag liquid kinetic energy attenuation box and the sediment box and is used for re-attenuation and shunt of drilling slag liquid kinetic energy and screening of large drilling slag; and the outlet of the slurry return tank is used for outputting the separated drilling fluid to flow back to the drilling well.
2. The forced drilling slag-liquid separator according to claim 1, further comprising a hydrocyclone sand removal device, wherein the hydrocyclone sand removal device comprises a hydrocyclone and a submersible sand pump, the submersible sand pump is arranged in the slurry return tank, a slurry inlet of the hydrocyclone is connected with a slurry outlet of the submersible sand pump through a liquid inlet pipe, and a liquid outlet pipe of the hydrocyclone is led out to an outlet of the slurry return tank.
3. The forced drilling slag-liquid separator as claimed in claim 2, wherein the lower part of the slag-liquid kinetic energy attenuation tank is connected with the upper part of the slag settling tank into a whole, the position of a slurry outlet of the slag-liquid kinetic energy attenuation tank corresponds to the position of a slurry inlet of the slag settling tank, and the grating plate is horizontally fixed in the slag-liquid kinetic energy attenuation tank or the slag settling tank.
4. A forced drilling mud-liquid separator according to claim 3 wherein the grid is a steel grid.
5. A forced drilling mud-liquid separator according to claim 4, wherein the sediment transport means is a screw conveyor.
6. A forced drilling slag-liquid separator as claimed in claim 5, wherein the upper part of the screw conveyor is connected with the bottom of the slag box into a whole, the position of a slag inlet of the screw conveyor corresponds to that of a slag outlet of the slag box, and the outlet end of the screw conveyor is provided with a gate.
7. A forced drilling slag-liquid separator according to any one of claims 2 to 6, characterized in that the hydrocyclone is arranged on the outer side of the slag box.
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CN201921824297.8U CN210738503U (en) | 2019-10-28 | 2019-10-28 | Forced drilling slag-liquid separator |
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CN201921824297.8U CN210738503U (en) | 2019-10-28 | 2019-10-28 | Forced drilling slag-liquid separator |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110566143A (en) * | 2019-10-28 | 2019-12-13 | 平煤建工集团特殊凿井工程有限公司 | Forced drilling slag-liquid separator |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110566143A (en) * | 2019-10-28 | 2019-12-13 | 平煤建工集团特殊凿井工程有限公司 | Forced drilling slag-liquid separator |
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