Slurry discharge reduction treatment system

Abstract

The utility model provides a slurry discharge reduction treatment system which comprises a slewing drilling machine, a slurry settling pond, a desanding device, a slurry circulating pond and a rotary drilling rig which are sequentially communicated through pipelines. The desanding device comprises a shell, a slurry storage barrel, a screening assembly and a slurry discharging groove, the slurry storage barrel and the screening assembly are sequentially arranged in the shell from top to bottom, and the slurry discharging groove is formed in the outer side of the bottom of the shell. The system is convenient and simple to operate, water resources are saved, environmental pollution is reduced, cyclic utilization of muddy water and gravel is achieved, construction efficiency is improved, and economic cost is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mud treatment, in particular to a mud discharge reduction treatment system. Background Art

[0002] As people's awareness of environmental protection increases, the construction of green construction sites is strengthened. In order to improve the air quality of human beings, it is strictly forbidden to discharge pollution sources and pollute the environment. Mud wall cast-in-place piles are widely used in inter-city transportation, water conservancy bridges, foundation treatment and foundation pit support and protection projects. Therefore, the treatment of waste mud has become the focus of research.

[0003] For the treatment of bored piles in soft soil areas with alternating sand and sticky strata and silt and fine sand layers, the water consumption is large and the mud discharge is large, which is not conducive to saving water resources and pollutes the environment. The site available for mud discharge is limited. The traditional mud treatment method is to discharge the waste mud into a sedimentation tank for sedimentation, remove the remaining water, dig out the sedimented mud blocks with an excavator, pile them on the side of the open space, drain the water in the mud blocks, and load them to the abandoned soil area. This treatment often causes secondary pollution. Utility Model Content

[0004] In view of this, the utility model aims to propose a sludge discharge reduction treatment system to solve the problem of secondary pollution caused by a large amount of waste sludge during the discharge and treatment process.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A mud discharge reduction treatment system comprises a rotary drilling rig, a mud sedimentation tank, a sand removal device, a mud circulation tank, and a rotary drilling rig, wherein the rotary drilling rig, the mud sedimentation tank, the sand removal device, the mud circulation tank, and the rotary drilling rig are connected in sequence through pipelines;

[0007] The sand removal device comprises a shell, a mud storage barrel, a screening assembly, and a mud discharge trough. The mud storage barrel and the screening assembly are sequentially arranged inside the shell from top to bottom, and the mud discharge trough is arranged outside the bottom of the shell.

[0008] Furthermore, the screening assembly includes a screen shell, a rotating assembly, two vibration motors, a feed pipe, and a sand outlet pipe. The feed pipe is arranged on both sides of the top of the screen shell, and the sand outlet pipe is arranged at the bottom center of the screen shell. Both the feed pipe and the sand outlet pipe are connected to the inside of the screen shell.

[0009] One end of the sand outlet pipe is arranged at the bottom center of the screen shell, and the other end of the sand outlet pipe extends to the bottom of the shell. A baffle is arranged at the end of the sand outlet pipe close to the screen shell. After the screening is completed, the baffle is opened to take out the sand and gravel.

[0010] The rotating assembly is arranged inside the sieve shell;

[0011] The bottom of the screen shell is provided with a first downward slope from all sides to the sand outlet pipe; two vibration motors are arranged below the first slope and on both sides of the sand outlet pipe, and protective covers are provided on the outer sides of the two vibration motors;

[0012] The first slope is provided with a plurality of slurry outlet holes, the inner diameter of which is smaller than the diameter of the sand and gravel, so that the sand and gravel are retained in the screen shell, and the slurry after the sand and gravel are screened out flows out from the slurry outlet holes.

[0013] Waste mud enters the screen shell from the feed pipe, and the mud and sand and gravel are screened through the extrusion of the rotating assembly, the vibration of the vibration motor and the setting of the slurry outlet hole. The mud is discharged from the slurry outlet hole, and the sand and gravel are stored in the screen shell. When the sand and gravel need to be taken out, open the baffle door and take the sand and gravel out from the sand outlet pipe.

[0014] Furthermore, the rotating assembly includes one or more motors, several rotating shafts, and several gears. Both ends of the several rotating shafts are rotatably arranged inside the sieve shell, and one end of the several rotating shafts is provided with a rotating rod, and the gear is arranged on the rotating rod; the output shaft of the motor is connected to the rotating rod. The output shaft of the motor drives the rotating rod to rotate, and through the meshing gears on the adjacent rotating rods, the other rotating rods are rotated, thereby driving the rotating shaft connected to the rotating rod to rotate inside the sieve shell. When one motor is provided, gears are provided on several rotating rods, and the adjacent gears are meshed with each other. When multiple motors are provided, each motor controls two or more rotating shafts, and the rotating rods connected to the rotating shaft controlled by each motor are provided with meshing gears with each other.

[0015] Furthermore, the feed pipe is provided with a feed pump, which is used to control the amount and flow rate of the slurry entering the sieve shell.

[0016] Furthermore, the top of the mud storage barrel is connected to the top of the shell, the bottom of the mud storage barrel is connected to the feed pipe, and the feed pipe is communicated with the inside of the mud storage barrel.

[0017] Furthermore, a second downward slope is provided at the bottom of the slurry discharge trough from left to right, and a gravity discharge pipe is provided on the side wall of the slurry discharge trough. One end of the gravity discharge pipe is arranged above the lowest point of the second slope, and the other end of the gravity discharge pipe extends to the mud circulation pool.

[0018] Furthermore, the bottom wall of the shell is provided with a third downward slope from the sand outlet pipe to the surrounding areas, and support frames are provided on both sides of the top of the third slope, and the top of the support frame is connected to the bottom of the first slope; the support frame is used to support the screening assembly.

[0019] A slurry discharge pipe is provided on both sides of the shell, one end of the slurry discharge pipe is arranged above the lowest point of the third slope, and the other end of the slurry discharge pipe extends into the slurry discharge trough; the mud after screening out sand and gravel flows from the slurry discharge hole to the third slope, and flows from the slurry discharge pipe into the slurry discharge trough along the third slope. The setting of the second slope makes the mud gather on the side of the slurry discharge trough where a gravity discharge pipe is provided, and flows into the mud circulation pool from the gravity discharge pipe.

[0020] Support legs are arranged at the four corners of the bottom of the shell.

[0021] Furthermore, the slurry discharge port of the rotary drilling rig is connected to the slurry inlet of the mud sedimentation tank through a first slurry row pipe, the slurry discharge port of the mud sedimentation tank is connected to the slurry inlet of the sand removal device through a second slurry row pipe, and the end of the second slurry row pipe extends to the inside of the mud storage barrel, the slurry discharge port of the sand removal device is connected to the slurry inlet of the mud circulation tank through a gravity slurry discharge pipe, and the slurry discharge port of the mud circulation tank is connected to the slurry inlet of the rotary drilling rig through a third slurry row pipe.

[0022] Furthermore, the first row of slurry pipes, the second row of slurry pipes and the third row of slurry pipes are all provided with slurry pumps.

[0023] Furthermore, an air compressor is provided in the mud sedimentation tank, which is used to prevent the mud from settling due to long storage time, and to fully stir the mud.

[0024] Compared with the prior art, the sludge discharge reduction treatment system described in the utility model has the following advantages:

[0025] (1) The screening assembly of the utility model can separate the sand and gravel in the waste mud. The separated sand and gravel are taken out from the sand outlet pipe and can be used nearby as backfill for pile holes or road repair. The mud from which the sand and gravel are screened enters the mud circulation pool, and the mud is re-adjusted to meet the mix ratio requirements of on-site construction. It can be used as slurry for mud wall protection and pile hole construction, which plays a role in saving resources and preventing environmental pollution.

[0026] (2) The system described in the utility model is easy and convenient to operate, which not only saves water resources and reduces environmental pollution, but also realizes the recycling of mud water, improves construction efficiency and saves economic costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0028] Figure 1 It is an overall schematic diagram of a mud discharge reduction treatment system according to an embodiment of the utility model;

[0029] Figure 2 A schematic diagram of a sand removal device for a mud discharge reduction treatment system according to an embodiment of the utility model;

[0030] Figure 3 It is a top view schematic diagram of a rotating assembly of a mud discharge reduction treatment system described in an embodiment of the utility model.

[0031] Description of reference numerals:

[0032] 1. Rotary drilling rig; 11. First row of slurry pipes; 2. Mud sedimentation tank; 21. Second row of slurry pipes; 22. Mud pump; 23. Air compressor; 3. Sand removal device; 31. Shell; 311. Third slope; 312. Support frame; 313. Slurry outlet pipe; 314. Door; 315. Support leg; 32. Slurry storage barrel; 33. Screening assembly; 331. Screen shell; 332. Rotating assembly; 3321. Motor; 3322. Rotating shaft; 3323. Gear; 3324. Rotating rod; 333. Vibrating motor; 334. Feed pipe; 3341. Feed pump; 335. Sand discharge pipe; 336. First slope; 337. Protective cover; 34. Slurry discharge trough; 341. Second slope; 342. Gravity slurry discharge pipe; 4. Slurry circulation pool; 41. Third slurry discharge pipe; 5. Rotary drilling rig. DETAILED DESCRIPTION

[0033] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0034] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0036] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0037] like Figures 1 to 3 As shown, a mud discharge reduction treatment system comprises a rotary drilling rig 1, a mud sedimentation tank 2, a sand removal device 3, a mud circulation tank 4, and a rotary drilling rig 5, wherein the rotary drilling rig 1, the mud sedimentation tank 2, the sand removal device 3, the mud circulation tank 4, and the rotary drilling rig 5 are connected in sequence through pipelines;

[0038] The sand removal device 3 includes a shell 31, a mud storage barrel 32, a screening assembly 33, and a slurry discharge groove 34. The mud storage barrel 32 and the screening assembly 33 are arranged inside the shell 31 from top to bottom, and the slurry discharge groove 34 is arranged on the outside of the bottom of the shell 31.

[0039] The screening assembly 33 includes a sieve shell 331, a rotating assembly 332, two vibration motors 333, a feed pipe 334, and a sand outlet pipe 335. The feed pipe 334 is arranged on both sides of the top of the sieve shell 331, and the sand outlet pipe 335 is arranged at the bottom center of the sieve shell 331. The feed pipe 334 and the sand outlet pipe 335 are both connected to the inside of the sieve shell 331.

[0040] One end of the sand outlet pipe 335 is arranged at the bottom center of the sieve shell 331, and the other end of the sand outlet pipe 335 extends to the bottom of the shell 31. A baffle 314 is provided at one end of the sand outlet pipe 335 close to the sieve shell 331; after screening, the baffle 314 is opened to take out the sand and gravel.

[0041] The rotating assembly 332 is disposed inside the sieve housing 331;

[0042] The bottom of the sieve shell 331 is provided with a first downward slope 336 from all sides to the sand outlet pipe 335; two vibration motors 333 are arranged below the first slope 336 and on both sides of the sand outlet pipe 335, and protective covers 337 are provided on the outer sides of the two vibration motors 333;

[0043] A plurality of slurry outlet holes are provided on the first slope 336. The inner diameter of the slurry outlet holes is smaller than the diameter of the sand and gravel, so that the sand and gravel are retained in the screen shell 331, and the slurry after the sand and gravel are screened out flows out from the slurry outlet holes.

[0044] Waste mud enters the sieve shell 331 from the feed pipe 334, and the mud and sand and gravel are screened by the extrusion of the rotating assembly 332, the vibration of the vibration motor 333 and the setting of the slurry outlet hole. The mud is discharged from the slurry outlet hole, and the sand and gravel are stored in the sieve shell 331. When the sand and gravel need to be taken out, the baffle door 314 is opened to take the sand and gravel out from the sand outlet pipe 335.

[0045] The rotating assembly 332 includes one or more motors 3321, a plurality of rotating shafts 3322, and a plurality of gears 3323. Both ends of the plurality of rotating shafts 3322 are rotatably arranged inside the sieve shell 331. One end of the plurality of rotating shafts 3322 is provided with a rotating rod 3324, and the gear 3323 is arranged on the rotating rod 3324. The output shaft of the motor 3321 is connected to the rotating rod 3324. The output shaft of the motor 3321 drives the rotating rod 3324 to rotate, and the gears 3323 meshing on the adjacent rotating rods 3324 cause the other rotating rods 3324 to rotate, thereby driving the rotating shaft 3322 connected to the rotating rod 3324 to rotate inside the sieve shell 331. When one motor 3321 is provided, gears 3323 are provided on several rotating rods 3324, and adjacent gears 3323 are meshed with each other. When multiple motors 3321 are provided, each motor 3321 controls two or more rotating shafts 3322, and the rotating rods 3324 connected to the rotating shafts 3322 controlled by each motor 3321 are provided with gears 3323 meshing with each other.

[0046] The feed pipe 334 is provided with a feed pump 3341. The feed pump 3341 is used to control the amount and flow rate of the mud entering the sieve shell 331.

[0047] The top of the mud storage barrel 32 is connected to the top of the shell 31 , the bottom of the mud storage barrel 32 is connected to the feed pipe 334 , and the feed pipe 334 is in communication with the inside of the mud storage barrel 32 .

[0048] The bottom of the slurry discharge trough 34 is provided with a second downward slope 341 from left to right, and the side wall of the slurry discharge trough 34 is provided with a gravity discharge pipe 342, one end of the gravity discharge pipe 342 is arranged above the lowest point of the second slope 341, and the other end of the gravity discharge pipe 342 extends to the mud circulation pool 4.

[0049] The bottom wall of the shell 31 is provided with a third downward slope 311 from the sand outlet pipe 335 to the surrounding areas, and support frames 312 are provided on both sides of the top of the third slope 311. The top of the support frame 312 is connected to the bottom of the first slope 336; the support frame 312 is used to support the screening assembly 33.

[0050] A slurry discharge pipe 313 is provided on both sides of the shell 31, one end of the slurry discharge pipe 313 is arranged above the lowest point of the third slope 311, and the other end of the slurry discharge pipe 313 extends into the slurry discharge trough 34; the mud after screening out the sand and gravel flows from the slurry discharge hole to the third slope 331, and flows from the slurry discharge pipe 313 into the slurry discharge trough 34 along the third slope 331. The setting of the second slope 341 allows the mud to gather on one side of the slurry discharge trough 34 where a gravity discharge pipe 342 is provided, and flows from the gravity discharge pipe 342 into the mud circulation pool 4.

[0051] Support legs 315 are disposed at four corners of the bottom of the housing 31 .

[0052] The slurry discharge port of the rotary drilling rig 1 is connected to the slurry inlet of the mud sedimentation tank 2 through a first slurry discharge pipe 11, the slurry discharge port of the mud sedimentation tank 2 is connected to the slurry inlet of the sand removal device 3 through a second slurry discharge pipe 21, and the end of the second slurry discharge pipe 21 extends to the inside of the mud storage barrel 32, the slurry discharge port of the sand removal device 3 is connected to the slurry inlet of the mud circulation tank 4 through a gravity slurry discharge pipe 342, and the slurry discharge port of the mud circulation tank 4 is connected to the slurry inlet of the rotary drilling rig 5 through a third slurry discharge pipe 41.

[0053] The first row of slurry pipes 11 , the second row of slurry pipes 21 , and the third row of slurry pipes 41 are all provided with slurry pumps 22 .

[0054] An air compressor 23 is provided in the mud sedimentation tank 2. The function of the air compressor 23 is to prevent the mud from being deposited for too long and to fully stir the mud.

[0055] In a specific implementation, the waste mud discharged from the rotary drilling rig 1 is collected into the mud sedimentation tank 2 along the first row of mud pipes 11, the mud is fully stirred by the mud pump 22 in cooperation with the air compressor 23, and discharged into the mud storage barrel 32 along the second row of mud pipes 21, the feed pump 3341 is turned on, so that the mud enters the sieve shell 331 through the feed pipe 334, the motor 3321 drives the rotating shaft 3322 to rotate, and cooperates with the vibration of the vibration motor 333 to squeeze and vibrate the mud in the sieve shell 331, so as to separate the sand and gravel in the mud, and the mud without sand and gravel falls from the mud outlet hole onto the third slope 311, and goes along the third slope 31 The mud flows from the slurry outlet pipe 313 into the slurry discharge trough 34, and then flows from the gravity slurry discharge pipe 342 into the mud circulation pool 4. The separated sand and gravel slide along the first slope 336 to the bottom center of the screen shell 331 through vibration. After the sand removal is completed, the baffle 314 is opened to take out the sand and gravel, which are used as backfill for pile holes or road repair. The specific gravity, funnel viscosity, plastic viscosity, water loss, PH and other indicators of the mud discharged into the mud circulation pool 4 are re-monitored. The mud is re-deployed according to the monitoring situation. After the mixing ratio requirements of the on-site construction are met, the mud is sent to the rotary drilling rig 5 through the third slurry discharge pipe 41 as slurry for mud wall protection to carry out the construction of the pile hole.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mud discharge reduction treatment system, characterized in that: It comprises a rotary drilling rig (1), a mud sedimentation tank (2), a sand removal device (3), a mud circulation tank (4), and a rotary drilling rig (5), wherein the rotary drilling rig (1), the mud sedimentation tank (2), the sand removal device (3), the mud circulation tank (4), and the rotary drilling rig (5) are connected in sequence through a pipeline; The sand removal device (3) comprises a shell (31), a mud storage barrel (32), a screening assembly (33), and a mud discharge groove (34); the mud storage barrel (32) and the screening assembly (33) are arranged inside the shell (31) in sequence from top to bottom, and the mud discharge groove (34) is arranged outside the bottom of the shell (31).

2. A sludge discharge reduction treatment system according to claim 1, characterized in that: The screening assembly (33) comprises a sieve shell (331), a rotating assembly (332), two vibration motors (333), a feed pipe (334), and a sand outlet pipe (335), wherein the feed pipe (334) is arranged on both sides of the top of the sieve shell (331), and the sand outlet pipe (335) is arranged at the bottom center of the sieve shell (331), and the feed pipe (334) and the sand outlet pipe (335) are both connected to the inside of the sieve shell (331); One end of the sand outlet pipe (335) is arranged at the bottom center of the sieve shell (331), and the other end of the sand outlet pipe (335) extends to the bottom of the housing (31). A stopper (314) is arranged at one end of the sand outlet pipe (335) close to the sieve shell (331); The rotating assembly (332) is arranged inside the sieve shell (331); The bottom of the sieve shell (331) is provided with a first downward slope (336) from all sides toward the sand outlet pipe (335); two vibration motors (333) are arranged below the first slope (336) and on both sides of the sand outlet pipe (335), and protective covers (337) are provided on the outer sides of the two vibration motors (333); A plurality of slurry outlet holes are provided on the first slope (336).

3. A sludge discharge reduction treatment system according to claim 2, characterized in that: The rotating assembly (332) comprises one or more motors (3321), a plurality of rotating shafts (3322), and a plurality of gears (3323); both ends of the plurality of rotating shafts (3322) are rotatably arranged inside the sieve shell (331); one end of the plurality of rotating shafts (3322) is provided with a rotating rod (3324), and the gear (3323) is arranged on the rotating rod (3324); and the output shaft of the motor (3321) is connected to the rotating rod (3324).

4. A sludge discharge reduction treatment system according to claim 2, characterized in that: The feed pipe (334) is provided with a feed pump (3341).

5. A sludge discharge reduction treatment system according to claim 1, characterized in that: The top of the mud storage barrel (32) is connected to the top of the shell (31), the bottom of the mud storage barrel (32) is connected to the feed pipe (334), and the feed pipe (334) is in communication with the inside of the mud storage barrel (32).

6. A sludge discharge reduction treatment system according to claim 1, characterized in that: A second downward slope (341) is provided at the bottom of the slurry discharge groove (34) from left to right, and a gravity slurry discharge pipe (342) is provided on the side wall of the slurry discharge groove (34), one end of the gravity slurry discharge pipe (342) is arranged above the lowest point of the second slope (341), and the other end of the gravity slurry discharge pipe (342) extends to the mud circulation pool (4).

7. A sludge discharge reduction treatment system according to claim 1, characterized in that: The bottom wall of the housing (31) is provided with a third slope (311) extending downward from the sand outlet pipe (335) to the surrounding areas, and support frames (312) are provided on both sides of the top of the third slope (311), and the top of the support frame (312) is connected to the bottom of the first slope (336); Both sides of the shell (31) are provided with pulp outlet pipes (313), one end of the pulp outlet pipe (313) is arranged above the lowest point of the third slope (311), and the other end of the pulp outlet pipe (313) extends into the pulp discharge groove (34); Support legs (315) are provided at four corners of the bottom of the housing (31).

8. A sludge discharge reduction treatment system according to claim 1, characterized in that: The slurry discharge port of the rotary drilling rig (1) is connected to the slurry inlet of the mud sedimentation tank (2) via a first slurry discharge pipe (11); the slurry discharge port of the mud sedimentation tank (2) is connected to the slurry inlet of the sand removal device (3) via a second slurry discharge pipe (21); and the end of the second slurry discharge pipe (21) extends into the mud storage barrel (32); the slurry discharge port of the sand removal device (3) is connected to the slurry inlet of the mud circulation tank (4) via a gravity slurry discharge pipe (342); and the slurry discharge port of the mud circulation tank (4) is connected to the slurry inlet of the rotary drilling rig (5) via a third slurry discharge pipe (41).

9. A sludge discharge reduction treatment system according to claim 8, characterized in that: The first row of slurry pipes (11), the second row of slurry pipes (21), and the third row of slurry pipes (41) are all provided with slurry pumps (22).

10. A sludge discharge reduction treatment system according to claim 1, characterized in that: An air compressor (23) is provided in the mud sedimentation tank (2).

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