CN111456657B

CN111456657B - Mud preparation system

Info

Publication number: CN111456657B
Application number: CN202010365419.2A
Authority: CN
Inventors: 孙宁; 李鑫
Original assignee: Zhongke Xingchuang Beijing Technology Co ltd
Current assignee: Nepton Polymer Group Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-12-29
Anticipated expiration: 2040-04-30
Also published as: CN111456657A

Abstract

The invention relates to a slurry preparation system which comprises a slurry preparation device and a slurry storage device, wherein the slurry preparation storage device comprises a slurry storage barrel and a first delivery pump for delivering slurry prepared by the slurry preparation device into the slurry storage barrel, the bottom of the slurry storage barrel is connected with a grouting pipe, and a control valve for controlling the grouting pipe to be opened and closed is arranged on the grouting pipe. And preparing the slurry by the slurry preparation and storage device and conveying the slurry into the slurry storage barrel for storage. When the mud is needed to be used, the control valve is opened, and the mud in the mud storage barrel flows out from the grouting pipe under the action of the self weight. Because can constantly prepare mud and carry and store in the storage thick liquid bucket through mud preparation facilities, the condition that the mud preparation facilities can't provide mud in time and lead to rig shut down can not appear.

Description

Mud preparation system

Technical Field

The invention relates to the technical field of slurry preparation, in particular to a slurry preparation system.

Background

The existing drilling cast-in-place pile foundation construction process is often used as a preferred process method for foundation construction due to the advantages of high mechanization degree, high construction speed, safety, reliability and the like, but slurry is injected into a hole while drilling in the drilling construction process to form a slurry retaining wall, and the wall of the hole is protected so that the hole is not easy to collapse. The current method for preparing the slurry is to dig a slurry pool on the land near the hole site to prepare the slurry needed by drilling, after the construction of the cast-in-situ bored pile is completed, the soil can be restored to the state before digging after the slurry pool is backfilled for 1-2 years, and meanwhile, the slurry has high pH and contains a certain amount of heavy metals, and the substances can influence the soil structure, harm the plant growth, even pollute the underground water and harm the health of human beings.

The prior utility model with the publication number of CN205521977U discloses a movable slurry preparation device. The slurry preparation device prepares slurry in the slurry prefabricated container, and the slurry is injected into the pile hole after being cached by the slurry transit container.

The above prior art solutions have the following drawbacks: the single mud preparation amount is not enough to completely supply the mud amount required by one pile hole construction. Therefore, in the process of constructing the pile hole, when the prepared mud is used up, the drilling machine needs to be stopped to wait for the completion of the mud preparation, and then the machine can be started to drill holes, so that the drilling construction efficiency is influenced. When the slurry prefabricating container with the single slurry preparation amount enough to meet the total slurry amount required during the construction of one pile hole is used, the volume of the slurry prefabricating container is extremely large, the slurry prefabricating container with the extremely large volume is difficult to carry and convey, and the slurry property in the whole slurry prefabricating container is difficult to be basically consistent in the preparation process, so that the slurry prefabricating container cannot be used.

Disclosure of Invention

In view of the disadvantages of the prior art, the present invention provides a slurry preparation system, which has the advantage of not needing to stop the drilling process to wait for preparing slurry.

The above object of the present invention is achieved by the following technical solutions: the utility model provides a mud preparation system, includes mud preparation device and mud storage device, mud preparation storage device is including storing up the thick liquid bucket, with the first delivery pump of mud to storing up the interior transport of thick liquid bucket of mud preparation device preparation, the bottom of storing up the thick liquid bucket is connected with the slip casting pipe, installs the control valve that the control slip casting pipe opened and close on the slip casting pipe.

Through adopting above-mentioned technical scheme, prepare mud and carry and store in the mud storage bucket through mud preparation storage device. When the mud is needed to be used, the control valve is opened, and the mud in the mud storage barrel flows out from the grouting pipe under the action of the self weight. Because can constantly prepare mud and carry and store in the storage thick liquid bucket through mud preparation facilities, the condition that the mud preparation facilities can't provide mud in time and lead to rig shut down can not appear.

The present invention in a preferred example may be further configured to: the slurry preparation device comprises a slurry making box and an aeration device, wherein the aeration device comprises an air compressor and an air outlet pipeline connected to the air outlet of the air compressor, the air outlet pipeline extends into the slurry making box, and a plurality of air outlet holes are formed in one end, extending into the slurry making box, of the air outlet pipeline.

By adopting the technical scheme, the aeration device conveys the aeration into the slurry making box, so that the slurry raw material and the water in the slurry making box are quickly and uniformly mixed to prepare the slurry.

The present invention in a preferred example may be further configured to: make the upper end of thick liquid case uncovered, and install first people's ladder on the lateral wall of making the thick liquid case, make thick liquid case upper end and be close to one side of first people's ladder and install reinforced platform, the middle part shaping of reinforced platform has the charge door.

Through adopting above-mentioned technical scheme, set up reinforced platform above making the thick liquid case, the people climbs reinforced platform back through first people's ladder, adds the mud raw materials to making the thick liquid incasement through the feed hole on reinforced platform.

The present invention in a preferred example may be further configured to: the side surface of the pulp storage barrel is provided with a second ladder, the upper end of the pulp storage barrel is provided with a safety platform connected with the second ladder, the safety platform is provided with an observation hole, and a safety guardrail is installed around the safety platform in a circle.

Through adopting above-mentioned technical scheme, because the thick liquid storage barrel is capacious, can't monitor its inside liquid level height through floater level sensor, also need not its liquid level height of accurate control, only need know roughly the storage capacity can. Therefore, the second person ladder is used for climbing the safety platform, and the mud storage amount in the mud storage barrel is observed through the observation hole. And similarly, the pulp storage barrel is higher, and the safety guardrails are arranged on the safety platform to protect the personal safety of an observer.

The present invention in a preferred example may be further configured to: still include mud recovery unit, mud recovery unit includes recycle pump and slurry return box, and the access connection of recycle pump has the material pipe of inhaling, and the exit linkage of recycle pump has the discharging pipe, and the discharging pipe stretches into slurry return box in, the middle part high position of slurry return box side is connected with the overflow pipe, and the other end of overflow pipe communicates with the slurrying case mutually.

By adopting the technical scheme, the mud in the pile hole which is injected into the concrete is pumped by the recovery pump, the mud is pumped out and then is input into the mud returning box for precipitation, and the drilling slag is precipitated at the bottom of the mud returning box. The mud is input into the mud making box through the overflow pipe for cyclic utilization.

The present invention in a preferred example may be further configured to: the separation net is arranged in the pulp return box, the separation net extends downwards from the middle of the upper end of the pulp return box to form a vertical section, the lower end of the vertical section extends horizontally rightwards to form a horizontal section, and the horizontal section is abutted against the inner wall of the pulp return box; the overflow pipe and the connection position of the slurry return box are positions on the slurry return box, which are positioned on the right side of the vertical section and above the horizontal section, and the connection position of the discharge pipe and the slurry return box is a position in the slurry return box, which is positioned on the left side of the vertical section.

By adopting the technical scheme, the isolation net is arranged to isolate the drilling slag, so that the drilling slag suspended in the slurry is prevented from entering the slurry making box.

The present invention in a preferred example may be further configured to: the bottom surface of the slurry return box is obliquely arranged, a separation box connected with the slurry return box is arranged outside the side wall of the lower side of the bottom surface of the slurry return box, a connecting port for communicating the separation box and the slurry return box is formed at a position, close to the bottom, on the adjacent side wall of the separation box and the slurry return box, and a butterfly valve for controlling the opening and closing of the connecting port is arranged at the connecting port.

Through adopting above-mentioned technical scheme, set up the slope of mud returning box bottom for open the butterfly valve when mud and mud have been stored to mud returning box bottom, the mud passes through the connector and enters into the separator box with the mud. And the drilling slag in the slurry return box is emptied, so that the influence on subsequent continuous slurry recovery is avoided.

The present invention in a preferred example may be further configured to: the bottom of separator box is less than the filter screen of horizontal separator box of cutting is installed to the position of connecting hole, and the filter screen slope sets up, and the filter screen is close to the one end of connector for higher end, and the position shaping that lies in the lower side top of filter screen on the separator box lateral wall has the discharge gate.

By adopting the technical scheme, the filter screen is arranged to filter the mud and the drilling slag in the separation box. The mud enters the bottom of the separation box, and the drilling slag is discharged through a discharge hole.

The present invention in a preferred example may be further configured to: and a vibrator is arranged at the bottom of the filter screen.

Through adopting above-mentioned technical scheme, set up the vibrator and form the vibration and make the brill sediment on the filter screen shake downwards along the filter screen.

The present invention in a preferred example may be further configured to: the bottom of the separation box is communicated with an open detection box at the position below the filter screen, a floating ball liquid level sensor is installed in the detection box, and a second conveying pump for pumping slurry in the detection box to convey the slurry to the slurry making box is installed on the side surface of the detection box; when the floating ball liquid level sensor detects that the liquid level in the detection box reaches a high set value, the second delivery pump is started; and when the floating ball liquid level sensor detects that the liquid level in the detection box reaches a low set value, the second delivery pump is closed.

Through adopting above-mentioned technical scheme, when floater level sensor detected the liquid level in the detection case and reached high setting value, the second delivery pump started, and the mud of extraction in the detection case is carried to making thick liquid case. And when the floating ball liquid level sensor detects that the liquid level in the detection box reaches a low set value, the second delivery pump is closed. The drilling slag moves towards the lower side of the filter screen under the action of the vibrator until being discharged from the discharge hole.

In summary, the invention includes at least one of the following beneficial technical effects:

1. when the mud is needed to be used, the control valve is opened, and the mud in the mud storage barrel flows out from the grouting pipe under the action of the self weight. The slurry can be continuously prepared by the slurry preparation device and is conveyed into the slurry storage barrel for storage, so that the condition that the drilling machine stops due to the fact that the slurry preparation device cannot provide the slurry in time can be avoided;

2. the mud in the pile hole which is being injected into the concrete is pumped by the recovery pump, the mud is pumped out and then is input into the mud returning box for precipitation, the drilling slag is precipitated at the bottom of the mud returning box, and the mud is input into the slurry making box through the overflow pipe for cyclic utilization.

Drawings

FIG. 1 is a schematic structural diagram of the first embodiment;

fig. 2 is a schematic structural diagram of the second embodiment.

Reference numerals: 1. a slurry preparation device; 2. a slurry storage device; 3. a mud recovery device; 4. a pulp making box; 5. an aeration device; 6. a first people ladder; 7. a charging platform; 8. a feed aperture; 9. an air compressor; 10. an air outlet pipe; 11. a pulp storage barrel; 12. a first delivery pump; 13. a second people ladder; 14. a secure platform; 15. an observation hole; 16. a safety barrier; 17. a grouting pipe; 18. a control valve; 19. a recovery pump; 20. a slurry return box; 21. a material suction pipe; 22. a discharge pipe; 23. an isolation net; 24. a vertical section; 25. a horizontal segment; 26. an overflow pipe; 27. a separation tank; 28. a connecting port; 29. a butterfly valve; 30. a filter screen; 31. a vibrator; 32. a discharge port; 33. a detection box; 34. a floating ball liquid level sensor; 35. a second delivery pump.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, a slurry preparation system includes a slurry preparation apparatus 1, a slurry storage apparatus 2, and a slurry recovery apparatus 3.

As shown in fig. 1, the slurry preparation apparatus 1 includes a slurry making tank 4 and an aeration apparatus 5, and the slurry making tank 4 is a rectangular parallelepiped vessel. Make the upper end of thick liquid case 4 uncovered, and install first passenger's ladder 6 on making the lateral wall of thick liquid case 4. Make the one side of pulp case 4 upper end near first passenger's ladder 6 and install reinforced platform 7, reinforced platform 7 is managed the welding by stainless steel side and is made, has laid stainless steel board above. The middle part shaping of reinforced platform 7 has charge door 8, and the people climbs reinforced platform 7 back through first people's ladder 6, puts in the mud raw materials in to making thick liquid case 4 through charge door 8.

As shown in fig. 1, the aeration device 5 comprises an air compressor 9 and an air outlet pipeline 10 connected to an air outlet of the air compressor 9, and the air outlet pipeline 10 extends into the slurry making tank 4. An air outlet hole is formed at a certain interval at one end of the air outlet pipeline 10 extending into the slurry making box 4, and compressed air input into the air outlet pipeline 10 by the air compressor 9 is discharged through the air outlet hole.

As shown in fig. 1, the slurry storage device 2 includes a slurry storage barrel 11, a first delivery pump 12 is installed at a position near the bottom outside the slurry making tank 4, and the first delivery pump 12 pumps the slurry at the bottom of the slurry making tank 4 and delivers the slurry into the slurry storage barrel 11 from the upper end of the slurry storage barrel 11. A second manned ladder 13 is arranged on the side surface of the pulp storage barrel 11, and a safety platform 14 connected with the second manned ladder 13 is arranged at the upper end of the pulp storage barrel 11. An observation hole 15 is formed in the safety platform 14, and a safety guardrail 16 is arranged around the safety platform 14 in a circle. The bottom of the slurry storage barrel 11 is connected with a slurry injection pipe 17, and the slurry injection pipe 17 is provided with a control valve 18 for controlling the slurry injection pipe 17 to open and close. When grouting is required, the control valve 18 is opened, so that the slurry in the slurry storage barrel 11 is discharged from the grouting pipe 17 under the action of the self weight.

As shown in fig. 1, the slurry recovery device 3 includes a recovery pump 19 and a slurry return tank 20, an inlet of the recovery pump 19 is connected with a material suction pipe 21, an outlet of the recovery pump 19 is connected with a material discharge pipe 22, and the material suction pipe 21 and the material discharge pipe 22 are hoses. The slurry return box 20 is a cuboid container, the material suction pipe 21 extends into a pile hole formed by the cast-in-place pile to extract slurry, the material discharge pipe 22 extends into the slurry return box 20, and the extracted slurry is injected into the slurry return box 20. The middle height position of the side surface of the slurry return box 20 is connected with an overflow pipe 26, and the other end of the overflow pipe 26 extends to the horizontal direction and is communicated with the slurry making box 4.

Example two:

as shown in FIG. 2, a slurry preparation system is different from the first embodiment in that a separation net 23 is installed inside a slurry return box 20, the separation net 23 extends downwards from the middle of the upper end of the slurry return box 20 to form a vertical section 24, and the lower end of the vertical section 24 extends horizontally to the right to form a horizontal section 25. The horizontal section 25 abuts against the inner wall of the return box 20. The connection position of the overflow pipe 26 and the slurry return tank 20 is the position of the slurry return tank 20, which is positioned at the right side of the vertical section 24 and above the horizontal section 25. The connection position of the discharge pipe 22 and the slurry return tank 20 is a position in the slurry return tank 20, which is located on the left side of the vertical section 24.

As shown in fig. 2, the bottom surface of the return slurry tank 20 is inclined, and a separation tank 27 connected to the return slurry tank 20 is installed outside the sidewall of the lower side of the bottom surface of the return slurry tank 20. A connecting port 28 for communicating the separating tank 27 and the slurry return tank 20 is formed on the adjacent side wall close to the bottom, and a butterfly valve 29 for controlling the opening and closing of the connecting port 28 is arranged at the connecting port 28. The bottom of the separation box 27 is lower than the connecting hole and is provided with a filter screen 30 which transversely cuts off the separation box 27, the filter screen 30 is obliquely arranged, and one end of the filter screen 30 close to the connecting hole 28 is a higher end. The bottom of the filter screen 30 is provided with a vibrator 31, and a discharge port 32 is formed on the side wall of the separation tank 27 above the lower side of the filter screen 30. The bottom of the separation box 27 is communicated with an open detection box 33 at the position below the filter screen 30, a floating ball liquid level sensor 34 is arranged in the detection box 33, and a second delivery pump 35 for pumping the slurry in the detection box 33 and delivering the slurry to the slurry making box 4 is arranged on the side surface of the detection box 33.

The specific working process is as follows:

when more mud and drill slag accumulate at the bottom of the return box 20, the butterfly valve 29 is opened, the mud and the drill slag enter the separation box 27, the drill slag is left above the filter screen 30, and the mud enters the bottom of the separation box 27 and then enters the detection box 33. When the float ball liquid level sensor 34 detects that the liquid level in the detection box 33 reaches a high set value, the second delivery pump 35 is started to pump the slurry in the detection box 33 and deliver the slurry to the slurry making box 4. When the float level sensor 34 detects that the liquid level in the detection tank 33 reaches a low set value, the second feed pump 35 is turned off. The drill slag moves to the lower side of the filter screen 30 by the vibrator 31 until it is discharged from the discharge port 32.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. A mud preparation system, includes mud preparation facilities (1) and mud storage device (2), characterized by: the slurry storage device (2) comprises a slurry storage barrel (11) and a first delivery pump (12) for delivering the slurry prepared by the slurry preparation device (1) into the slurry storage barrel (11), the bottom of the slurry storage barrel (11) is connected with a grouting pipe (17), and a control valve (18) for controlling the grouting pipe (17) to be opened and closed is mounted on the grouting pipe (17); the slurry preparation device (1) comprises a slurry making box (4) and an aeration device (5), wherein the aeration device (5) comprises an air compressor (9) and an air outlet pipeline (10) connected to an air outlet of the air compressor (9), the air outlet pipeline (10) extends into the slurry making box (4), and a plurality of air outlet holes are formed in one end, extending into the slurry making box (4), of the air outlet pipeline (10); still include mud recovery unit (3), mud recovery unit (3) are including dredge pump (19) and slurry return tank (20), and the access connection of dredge pump (19) has material suction pipe (21), and the exit linkage of dredge pump (19) has discharging pipe (22), and discharging pipe (22) stretch into slurry return tank (20) in, the middle part high position of slurry return tank (20) side is connected with overflow pipe (26), and the other end of overflow pipe (26) is linked together with slurry making tank (4).

2. The mud preparation system of claim 1, wherein: make the upper end of thick liquid case (4) uncovered, and install first people's ladder (6) on the lateral wall of making thick liquid case (4), make thick liquid case (4) upper end and be close to one side of first people's ladder (6) and install reinforced platform (7), the middle part shaping of reinforced platform (7) has charge-in hole (8).

3. The mud preparation system of claim 1, wherein: the side-mounting of storing up thick liquid bucket (11) has second people's ladder (13), and safe platform (14) that link to each other with second people's ladder (13) are installed to the upper end of storing up thick liquid bucket (11), have seted up observation hole (15) on safe platform (14), and safety barrier (16) are installed to the round around safe platform (14).

4. The mud preparation system of claim 1, wherein: an isolation net (23) is arranged in the pulp return box (20), the isolation net (23) extends downwards from the middle of the upper end of the pulp return box (20) to form a vertical section (24), the lower end of the vertical section (24) extends horizontally to the right to form a horizontal section (25), and the horizontal section (25) is abutted to the inner wall of the pulp return box (20); the joint of the overflow pipe (26) and the slurry return box (20) is the position on the slurry return box (20) above the right side of the vertical section (24) and the horizontal section (25), and the joint of the discharge pipe (22) and the slurry return box (20) is the position on the left side of the vertical section (24) in the slurry return box (20).

5. The mud preparation system of claim 1, wherein: the bottom surface of the slurry return box (20) is obliquely arranged, a separation box (27) connected with the slurry return box (20) is arranged outside the side wall of the lower side of the bottom surface of the slurry return box (20), a connecting port (28) for communicating the separation box (27) and the slurry return box (20) is formed in the position, close to the bottom, of the adjacent side wall of the separation box and the slurry return box, and a butterfly valve (29) for controlling the opening and closing of the connecting port (28) is arranged at the connecting port (28).

6. The mud preparation system of claim 5, wherein: the bottom of separator box (27) is less than the filter screen (30) of transversely cutting separator box (27) is installed to the position of connecting hole, and filter screen (30) slope sets up, and filter screen (30) are close to the one end of connector (28) and are higher, and the position shaping that lies in filter screen (30) lower side top on separator box (27) lateral wall has discharge gate (32).

7. The mud preparation system of claim 6, wherein: and a vibrator (31) is arranged at the bottom of the filter screen (30).

8. The mud preparation system of claim 7, wherein: the bottom of the separation box (27) is communicated with an open detection box (33) at the position below the filter screen (30), a floating ball liquid level sensor (34) is installed in the detection box (33), and a second conveying pump (35) for pumping slurry in the detection box (33) to convey to the slurry making box (4) is installed on the side surface of the detection box (33); when the floating ball liquid level sensor (34) detects that the liquid level in the detection box (33) reaches a high set value, the second delivery pump (35) is started; when the float level sensor (34) detects that the liquid level in the detection box (33) reaches a low set value, the second delivery pump (35) is closed.