CN212054564U

CN212054564U - Drilling mud circulation system

Info

Publication number: CN212054564U
Application number: CN201922151937.XU
Authority: CN
Inventors: 周俊; 赵君; 张新华; 易磊; 翁萌
Original assignee: Hubei Provincial Road & Bridge Co ltd
Current assignee: Hubei Provincial Road & Bridge Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-12-01
Anticipated expiration: 2029-12-03

Abstract

The utility model discloses a drilling mud circulation system relates to civil engineering technical field. The utility model discloses a: the device comprises a drilling machine, a rotary pipe sealing device, a second slurry return pipe, a first slurry return pipe, a flow control valve and a slurry input hole; the slurry storage steel protecting cylinder is composed of adjacent protecting cylinders, a slurry insulation end plate is arranged in the slurry storage steel protecting cylinder, the slurry storage steel protecting cylinder is internally provided with a downward pressing, expanding, lifting and reducing double-layer protecting cylinder, the protecting cylinders are communicated through a communicating pipe, and a rotary pipe sealing device is arranged in the middle of the communicating pipe; the first slurry backflow pipe is arranged between the slurry storage steel casing and the sedimentation tank, and the second slurry backflow pipe is arranged between the slurry storage steel casing and the slurry processor; the flow control valve is arranged between the sedimentation tank and the slurry processor, and a winding traction push-pull type slag cleaning plate is arranged in the multistage sedimentation purification treatment tank. The utility model discloses reducible slurrying volume can in time separate away the brill sediment in the mud simultaneously, guarantees that mud is high-quality mud to guarantee out the pore wall safety when protecting a section of thick bamboo, protect the pore wall and avoid collapsing.

Description

Drilling mud circulation system

Technical Field

The utility model belongs to the technical field of civil engineering, especially, relate to a drilling mud circulation system, be applicable to the drilling construction of drilling bored concrete pile.

Background

Mud plays an important role in drilling. Because the geological condition of the project is complex, and the quality in the casing does not have any mud making capacity, the mud must be prepared before drilling. The project provides a slurry ship, and the slurry ship is planned to be used for slurry preparation, and a slurry performance test must be carried out every slurry preparation so as to achieve qualified slurry performance and drill in time. The specific gravity of the mud is greater than that of water, the static pressure of the mud in the well hole is greater than that of water outside the hole, and under the action of the greater pressure, the mud forms a layer of mud skin on the wall of the well hole to block the seepage outside the hole and protect the wall of the hole from collapse. In addition, the mud also acts to suspend the drill cuttings.

The use of the slurry is preferably important, and the slurry retaining wall is attached to the particles when filled with water, bentonite and the slurry penetrates to a certain extent from the surface of the tank wall into the formation, by which adhesion the tank wall is less collapsed and penetrated. The slurry has the functions of supporting excavation, suspending sediment, avoiding accumulation of a silt layer at the bottom of excavation and the like. Whether the slurry is newly prepared or circularly purified, the consistency of the slurry is determined according to the stratum condition and the soil property characteristics of the excavated groove section.

From the view of the mud pit, the occupied area is large, the mud pit is not put into use in time, the mud stirring treatment is unscientific, the quality of the stirred mud is unstable, and the maintenance of the mud pit cannot be guaranteed. If a large amount of water is accumulated in the mud pool in rainy season, the performance parameters of the mud are changed, and the function of the mud retaining wall is reduced and even lost. The recycling rate of the waste slurry in the traditional slurry tank is low, new slurry needs to be continuously prepared in the construction process, and sometimes the waste slurry is directly recycled, because the performance of the old slurry is far lower than that of the new slurry, the wall protection effect is poor, and the grooving construction is influenced. At present, civilized construction is advocated in society, and good construction environment, worker's life and working environment and the like are guaranteed to the engineering quality still, so traditional mud technology is not suitable for the development of the era. The existing mud circulation purification technology has the following defects: firstly, the energy consumption is high; secondly, the purification and deslagging efficiency is low, and the quality of the formed pulp is poor. Therefore, how to ensure the slurry quality of the slurry, improve the recovery utilization rate of the slurry and reduce the cost is a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a drilling mud circulation system, reducible mud volume of making can in time separate away the drilling mud in the mud simultaneously, guarantees that mud is high-quality mud to guarantee out the pore wall safety when protecting a section of thick bamboo, protect the pore wall and avoid collapsing.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

a drilling mud circulation system comprising: a slurry storage steel protective cylinder and a multi-stage sedimentation purification treatment tank; the slurry storage steel protecting cylinder comprises a first protecting cylinder and a second protecting cylinder which are adjacent, a drilling machine platform is arranged on the first protecting cylinder, a slurry isolating end plate is arranged in the second protecting cylinder, the first protecting cylinder and the second protecting cylinder are communicated through a communicating pipe, and a rotary pipe sealing device is arranged in the middle of the communicating pipe; the multistage sedimentation and purification treatment tank comprises a slurry treatment machine, and a sedimentation tank and a traction push-pull type slag removal plate are arranged above the slurry treatment machine; the slurry storage steel protective cylinder is communicated with the sedimentation tank through a first slurry return pipe, the slurry storage steel protective cylinder is communicated with the slurry treatment machine through a second slurry return pipe, and a flow control valve is arranged between the sedimentation tank and the slurry treatment machine.

Optionally, a drilling machine is arranged on the drilling machine platform, a slurry outlet pipe is arranged at the top of a drill rod of the drilling machine, a scraper drill bit is arranged at the bottom of the drill rod, a handle fixing plate is arranged on the second protective cylinder, and the middle of the handle fixing plate is connected with a slurry separation end plate handle.

Optionally, a waste residue filter screen is arranged on the sedimentation tank, one end of the slurry outlet pipe is connected with the waste residue filter screen, a waste residue chute is arranged on one side of the waste residue filter screen, and the waste residue filter screen is fixed above the sedimentation tank through a filter screen fixing plate.

Optionally, the side walls of the sedimentation tank and the slurry treatment machine are respectively provided with a slurry return hole, the first slurry return pipe is connected to the slurry return hole on the sedimentation tank, and the second slurry return pipe is connected to the slurry return hole on the slurry treatment machine.

Optionally, a mud outflow hole is formed in the side wall of the sedimentation tank, a mud input hole is formed in the side wall of the mud treatment machine, the sedimentation tank is communicated with the mud treatment machine through a circulating mud pipe, one end of the circulating mud pipe is connected to the mud outflow hole, and the other end of the circulating mud pipe is connected to the mud input hole.

Optionally, the middle part of the circular slurry conveying pipe is provided with a flow control valve.

Optionally, the section of the slurry treatment machine is conical, a fine sand outlet is formed in the center of the bottom of the slurry treatment machine, a fine sand outlet pipe is arranged at the bottom of the fine sand outlet, and a fine sand outflow control switch is arranged at the bottom of the fine sand outlet pipe.

Optionally, one side of the multistage sedimentation purification treatment tank is provided with a waste residue chute, a slag hole is formed in the waste residue chute, and a slag receiving box is arranged at the bottom of the waste residue chute.

Optionally, a butt valve plate is arranged between the two sides of the rotary pipe sealing device and the communicating pipe, the top of the rotary pipe sealing device is connected with the valve rod through a valve cover and a valve cover nut, and a hand wheel is arranged on the valve rod.

The embodiment of the utility model has the following beneficial effect:

1. the utility model discloses an embodiment utilizes the slag suction port of drill bit bottom, but the waste residue of high efficiency discharge, and the hole bottom sediment is clear away thoroughly, shortens the pore-forming cycle for the construction progress.

2. The utility model discloses a reducible slurrying volume of making of an embodiment can in time separate away the drilling mud in the mud simultaneously, guarantees that mud is high-quality mud to guarantee out the pore wall safety when protecting a section of thick bamboo, protect the pore wall and avoid collapsing.

3. The utility model discloses a pull plug-type scarfing cinder board of embodiment can realize the scarfing cinder fast through the scarfing cinder board slide of hoist engine and slope, has improved scarfing cinder efficiency.

4. The utility model discloses a rotatory tube sealing device that an embodiment passes through with separate the thick liquid end plate, can control the mud supply and demand volume, the mud demand of being convenient for control, the mud of avoiding unnecessary is extravagant, has practiced thrift the energy consumption.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a drilling mud circulation system according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a traction push-pull type slag removal device according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a rotary pipe sealing device according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a grout isolation end plate according to an embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-drag bit, 2-rotary pipe sealing device, 3-butt valve plate, 4-valve plate nut, 5-drill rod, 6-valve rod, 7-drilling machine platform, 8-handle fixing plate, 9-drilling machine, 10-second slurry return pipe, 11-first slurry return pipe, 12-flow control valve, 13-slurry input hole, 14-slurry return hole, 15-slurry outlet pipe, 16-sedimentation tank, 17-waste residue filter screen, 18-waste residue chute, 19-filter screen fixing plate, 20-traction push-pull type slag cleaning plate, 21-slag cleaning plate sliding plate, 22-slag cleaning plate traction rod, 23-communicating pipe, 24-traction steel wire rope, 25-support shaft, 26-winch, 27-winch support platform, 3-butt valve plate, 4-valve plate nut, 5-drill rod, 6-valve rod, 7-drilling machine platform, 8-handle fixing, 28-supporting platform base, 29-slag receiving box, 30-slag hole, 31-slurry outflow hole, 32-fine sand outlet, 33-fine sand outlet pipe, 34-fine sand outflow control switch, 35-slurry processor, 36-circular slurry conveying pipe, 37-slurry isolating end plate handle, 38-hand wheel, 39-slurry isolating end plate, 40-valve cover, 41-valve cover nut and 42-slurry storage steel protective cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open hole", "upper", "middle", "length", "inner", etc. indicate positional or orientational relationships and are merely for convenience of description and simplicity of description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

The utility model discloses construction technical requirements such as steel pipe welding and cutting, steel reinforcement cage ligature, concrete are pour in the embodiment are no longer repeated, key exposition the utility model discloses drilling mud circulation system's embodiment, it is right to combine the drawing and through the embodiment below the utility model discloses a do further detailed description, this description does not confine to following embodiment. To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.

In the present embodiment, there is provided a drilling mud circulation system, as shown in fig. 1 to 3, comprising: the device comprises a drilling machine 9, a rotary pipe sealing device 2, a second slurry return pipe 10, a first slurry return pipe 11, a flow control valve 12, a slurry input hole 13, a slurry return hole 14, a slurry outlet pipe 15, a sedimentation tank 16, a waste residue filter screen 17, a waste residue chute 18, a traction push-pull type slag cleaning plate 20, a slag cleaning plate sliding plate 21, a slag cleaning plate traction rod 22, a communication pipe 23, a traction steel wire rope 24, a winch 26, a slag receiving box 29, a slag outlet hole 30, a slurry outflow hole 31, a fine sand outlet 32, a fine sand outlet pipe 33, a fine sand outflow control switch 34, a slurry processor 35, a circulating slurry conveying pipe 36, a slurry separation end plate 39 and a slurry storage steel protective cylinder 42.

The slurry storage steel protecting cylinder 42 and the multistage sedimentation purification treatment tank 43 are formed by adjacent protecting cylinders, a slurry insulation end plate 39 is arranged in the slurry storage steel protecting cylinder 42, the slurry storage steel protecting cylinder is internally provided with a pressing-down expanding lifting reducing double-layer protecting cylinder, the protecting cylinders are communicated through a communicating pipe 23, and the communicating pipe 23 is provided with a rotary pipe sealing device 2; the first slurry return pipe 11 is arranged between the slurry storage steel casing 42 and the sedimentation tank 16, and the second slurry return pipe 10 is arranged between the slurry storage steel casing 42 and the slurry processor 35; the flow control valve 12 is arranged between the sedimentation tank 16 and the slurry processor 35, and a hoisting traction push-pull type slag removing plate 20 is arranged in the multi-stage sedimentation purification treatment tank 43.

Specifically, in this embodiment, the slurry storage steel casing 42 includes a first casing and a second casing which are adjacent to each other, the drilling platform 7 is disposed on the first casing, the slurry separation end plate 39 is disposed in the second casing, the first casing and the second casing are communicated through the communicating pipe 23, and the rotary pipe sealing device 2 is disposed in the middle of the communicating pipe 23; the multistage sedimentation purification treatment tank 43 comprises a slurry treatment machine 35, and a sedimentation tank 16 and a traction push-pull type slag removal plate 20 are arranged above the slurry treatment machine 35; the slurry storage steel protective cylinder 42 is communicated with the sedimentation tank 16 through a first slurry return pipe 11, the slurry storage steel protective cylinder 42 is communicated with the slurry processor 35 through a second slurry return pipe 10, and a flow control valve 12 is arranged between the sedimentation tank 16 and the slurry processor 35.

In one aspect of this embodiment, as shown in FIG. 1, the top of the drill pipe 5 of the drill rig 9 is connected to one end of the mud outlet pipe 15, the drag bit 1 is provided at the bottom of the drill pipe 5, the drill platform 7 is provided at the bottom of the drill rig 9, and the drill platform 7 is provided above one side of the mud storage steel casing 42. The other end of the slurry outlet pipe 15 is connected with a waste residue filter screen 17, a waste residue chute 18 is arranged on one side of the waste residue filter screen 17, and the waste residue filter screen 17 is fixed above the sedimentation tank 16 through a filter screen fixing plate 19. The side wall of the sedimentation tank 16 is provided with a slurry return hole 14 and a slurry outflow hole 31 which are respectively connected with a second slurry return pipe 10 and a circulating slurry conveying pipe 36, and the middle part of the circulating slurry conveying pipe 36 is provided with a flow control valve 12.

In one aspect of the present embodiment, as shown in fig. 1 and fig. 2, the slurry treatment machine 35 is a conical device, and is disposed below the multistage sedimentation purification treatment tank 43, and has a slurry inlet hole 13 and a slurry return hole 14 on the side wall thereof, which are respectively connected to the circulation slurry inlet pipe 36 and the second slurry return pipe 10, a fine sand outlet pipe 32 and a fine sand outlet pipe 33 are disposed at the center of the bottom of the slurry treatment machine 35, and a fine sand outflow control switch 34 is disposed at the bottom of the fine sand outlet pipe 33. The upper part of the traction push-pull type slag removing plate 20 is welded with a slag removing plate traction rod 22, the bottom of the push-pull type slag removing plate 20 is provided with an inclined slag removing plate sliding plate 21, and the slag removing plate traction rod 22 is connected with a traction steel wire rope 24 of a winch 26. One side of the multi-stage precipitation purification treatment tank 43 is provided with a slag hole 30 which is connected with a waste slag chute 18, and the bottom of the waste slag chute 18 is connected with a slag receiving box 29. The hoist 26 is mounted on a hoist support platform 27, and the hoist support platform 27 is mounted on a support platform base 28.

In one aspect of this embodiment, as shown in fig. 1 and fig. 3, two ends of the rotary pipe sealing device 2 are connected to the communicating pipes 23 on two sides by butting against the valve plate 3 and are fixed by the valve plate nut 4, the central top of the rotary pipe sealing device is connected to the valve rod 6 by the valve cover 40 and the valve cover nut 4, and the valve rod 6 is provided with the hand wheel 38.

In one aspect of this embodiment, as shown in fig. 1 and 4, a handle fixing plate 8 is provided above the other side of the slurry storage steel casing 42, and the middle of the handle fixing plate 8 is connected with the slurry separation end plate handle 37.

The application of one aspect of the embodiment is as follows: the mud circulating system is arranged on the construction platform, in order to guarantee the supply of drilling circulating mud, each machine is provided with a multistage sedimentation purification treatment tank 43 and a mud treatment machine 35, and meanwhile, the adjacent and communicated mud storage steel protective cylinders 42 can be used as mud storage tanks between the protective cylinders so as to facilitate the circulation of the drilling mud. The slurry flows out from the slurry outlet pipe 15 after passing through the drill pipe 5, passes through the waste residue receiving filter screen 17, large-particle waste residues are separated out and slide on the slag removing plate sliding plate 21 through the waste residue chute 18, and are finally discharged into the slag receiving box 29 through the winch traction push-pull type slag removing plate 20, and the winch traction push-pull type slag removing plate 20 is controlled by the winch 26 in a traction way. After the slurry after the first separation is settled in the settling pond 16, the supernatant liquid flows back to the slurry storage steel casing 42 through the first slurry return pipe 11. The lower layer of turbid slurry flows to the slurry processor 35 through the circulating slurry conveying pipe 36, silt falls on the bottom through the centrifugal action, then is discharged through the second fine sand outlet pipe 33, and the upper layer of clear liquid flows back to the slurry storage steel casing 42 through the second slurry return pipe 10. When the height of the slurry liquid level in the slurry storage steel casing 42 is not enough, the flow control and the speed control can be realized through the control of the flow control valve 12, and in addition, the regulation can be performed through the slurry separation end plate 39 and the rotary pipe sealing device 2; the platform pile steel pipe of the drilling machine platform 7 is constructed by adopting a pile driving barge, the pile cap and the connecting system of the platform steel pipe pile are installed by utilizing a floating crane, the longitudinal and transverse Bailey beam groups are installed by utilizing the floating crane, and finally, the distribution beam and the steel panel are laid.

The above embodiments may be combined with each other.

It should be noted that in the description of the present specification, descriptions such as "first", "second", etc. are only used for distinguishing features, and do not have an actual order or meaning, and the present application is not limited thereto.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A drilling mud circulation system, comprising: a slurry storage steel protective cylinder (42) and a multi-stage sedimentation purification treatment tank (43);

the slurry storage steel protecting cylinder (42) comprises a first protecting cylinder and a second protecting cylinder which are adjacent, a drilling machine platform (7) is arranged on the first protecting cylinder, a slurry isolating end plate (39) is arranged in the second protecting cylinder, the first protecting cylinder and the second protecting cylinder are communicated through a communicating pipe (23), and a rotary pipe sealing device (2) is arranged in the middle of the communicating pipe (23);

the multistage sedimentation purification treatment tank (43) comprises a slurry treatment machine (35), and a sedimentation tank (16) and a traction push-pull type slag cleaning plate (20) are arranged above the slurry treatment machine (35);

the slurry storage steel protective cylinder (42) is communicated with the sedimentation tank (16) through a first slurry return pipe (11), the slurry storage steel protective cylinder (42) is communicated with the slurry processor (35) through a second slurry return pipe (10), and a flow control valve (12) is arranged between the sedimentation tank (16) and the slurry processor (35).

2. The drilling mud circulation system of claim 1, wherein the drilling machine (9) is arranged on the drilling machine platform (7), the mud outlet pipe (15) is arranged at the top of the drill rod (5) of the drilling machine (9), the scraper drill bit (1) is arranged at the bottom of the drill rod (5), the handle fixing plate (8) is arranged on the second protective cylinder, and the middle part of the handle fixing plate (8) is connected with the handle of the mud isolation end plate (39).

3. The drilling mud circulation system of claim 2, wherein the sedimentation tank (16) is provided with a waste residue filter screen (17), one end of the mud outlet pipe (15) is connected with the waste residue filter screen (17), one side of the waste residue filter screen (17) is provided with a waste residue chute (18), and the waste residue filter screen (17) is fixed above the sedimentation tank (16) through a filter screen fixing plate (19).

4. A drilling mud circulation system according to claim 1, characterized in that the side walls of the settling tank (16) and the mud treatment machine (35) are provided with mud return holes (14), the first mud return pipe (11) is connected to the mud return hole (14) of the settling tank (16), and the second mud return pipe (10) is connected to the mud return hole (14) of the mud treatment machine (35).

5. The drilling mud circulation system of claim 1, wherein the side wall of the sedimentation tank (16) is provided with a mud outflow hole (31), the side wall of the mud treatment machine (35) is provided with a mud input hole (13), the sedimentation tank (16) is communicated with the mud treatment machine (35) through a circulating mud pipe (36), one end of the circulating mud pipe (36) is connected to the mud outflow hole (31), and the other end of the circulating mud pipe (36) is connected to the mud input hole (13).

6. A drilling mud circulation system according to claim 5, characterized in that the central part of the circulating slurry pipe (36) is provided with a flow control valve (12).

7. The drilling mud circulation system of claim 1, wherein the section of the mud treatment machine (35) is conical, a fine sand outlet (32) is arranged at the center of the bottom of the mud treatment machine (35), a fine sand outlet pipe (33) is arranged at the bottom of the fine sand outlet (32), and a fine sand outflow control switch (34) is arranged at the bottom of the fine sand outlet pipe (33).

8. The drilling mud circulation system of claim 1, wherein the multistage sedimentation purification treatment tank (43) is provided with a slag chute (18) at one side thereof, the slag chute (18) is provided with a slag hole (30), and the bottom of the slag chute (18) is provided with a slag receiving box (29).

9. The drilling mud circulation system of claim 1, characterized in that a butt valve plate (3) is arranged between the two sides of the rotary pipe sealing device (2) and the communicating pipe (23), the top of the rotary pipe sealing device (2) is connected with the valve rod (6) through the valve cover (40) and the valve cover nut (4), and the valve rod (6) is provided with a hand wheel (38).