Slurry concentration pipeline
By designing the mud concentration pipeline, dehydration treatment is carried out during the mud transport process, the problems of high transportation costs, large environmental impact and low dehydration efficiency in the prior art are solved, and efficient and low-cost mud dehydration treatment is achieved.
Patent Information
- Application Number
- CN202421796949.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-26
AI Technical Summary
The existing mud transportation methods have high transportation costs, are greatly affected by the environment, and have a long time to dehydrate and low efficiency.
A mud concentration pipeline is designed, and dehydration is performed during mud transport by combining the main pipe, the first concentration device and the second concentration device. The first concentration device realizes preliminary dehydration through the first water pumping pipe and the first geotube bag, and the second concentration device forms an interlaced fluid passage through the concentration branch pipe and the baffle to further promote dehydration.
Effectively shorten the time of mud dehydration, improve dehydration efficiency, reduce transportation costs, reduce environmental impact, and improve water resource utilization.
Smart Images
Figure CN222877779U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sludge treatment, in particular to a sludge concentration pipeline. Background Art
[0002] Engineering activities such as subway shield construction, tunnel excavation, and infrastructure construction will generate a large amount of slag. However, due to factors such as site space limitations, the construction section cannot directly handle the slag on site. The slag needs to be transported to the disposal site for treatment. Generally, the slag is poured into the disposal pool in the disposal site and a large amount of water is added (other flocculants and other agents can also be added if necessary) for stirring. The slag is screened for particles using separation equipment. Sand and gravel with larger particles can be recycled, while mud needs to be further processed. The mud is treated by mud-water separation equipment to separate the mud into water and dried soil. After the dried soil is treated to improve its high viscosity, easy rheology, high water retention and low permeability coefficient, its material moisture content is less than 40%, and it can be used for backfill operations after meeting relevant standards.
[0003] Therefore, a large amount of mud will still be generated after the first step of particle screening in the disposal site, and the mud needs to be continuously transported and dehydrated. It is generally transported to the backfill site by truck and then dehydrated. This method has low processing efficiency and very high transportation cost, and vehicle transportation is greatly affected by the environment: for example, vehicles are difficult to drive in complex terrain, and driving operations are affected by bad weather, etc.; or the mud is transported to a mud storage tank or a mud concentration tank through a conveying pipeline, and then a dehydration device is used for centralized dehydration treatment. However, a mud storage tank or a mud concentration tank needs to be built separately, which occupies a large area and has a high construction cost. In addition, the mud needs to be transported to a mud storage tank or a mud concentration tank before being dehydrated, which will result in a longer overall dehydration time and lower efficiency. Utility Model Content
[0004] In response to the problems raised by the background technology, the purpose of the utility model is to propose a mud concentration pipeline, which can dehydrate the mud while transporting it, effectively shortening the time of mud dehydration and improving the dehydration efficiency, thereby solving the technical problems of existing mud transportation methods, such as high transportation cost, great environmental impact, long mud dehydration time and low efficiency.
[0005] To achieve this purpose, the utility model adopts the following technical solution: a mud concentration pipeline, comprising:
[0006] A main pipeline, wherein the main pipeline includes a pipeline inlet and a pipeline outlet;
[0007] a first concentrating device, the first concentrating device comprising a first water pumping pipe, a partial section of the first water pumping pipe being arranged in the main pipeline, the section of the first water pumping pipe arranged in the main pipeline being provided with a through hole; the section of the first water pumping pipe arranged in the main pipeline being provided with a first geotextile tube bag so that the first geotextile tube bag covers the through hole;
[0008] A second concentrating device, the second concentrating device comprises a concentrating branch pipe and a second pumping pipe, the input end of the concentrating branch pipe is connected to the main pipe, and the connecting position of the concentrating branch pipe and the main pipe is on the side of the first geotube bag close to the pipe outlet; a plurality of baffles are arranged inside the concentrating branch pipe to form a staggered fluid channel inside the concentrating branch pipe; the output end of the concentrating branch pipe is connected to the second pumping pipe;
[0009] A positive and negative pressure generating device is connected to the first water pumping pipe and the second water pumping pipe to provide positive pressure and / or negative pressure to the first water pumping pipe and the second water pumping pipe.
[0010] Optionally, the first water pumping pipe includes an inlet section, which is placed on the axis of the main pipe and parallel to the main pipe, and the diameter of the inlet section is smaller than the diameter of the main pipe; the pipe mouth of the inlet section is conical and is set in the direction of the pipe inlet; the pipe mouth is in a closed state; the inlet section is fixedly connected to the inner pipe wall of the main pipe by a support rod.
[0011] Optionally, the first concentrating device also includes a conical guide device, which is arranged on a side of the inlet section close to the pipeline inlet, the axis of the conical guide device coincides with the axis of the inlet section, and the conical guide device is fixedly connected to the inner pipe wall of the main pipeline by a fixing rod; the conical guide device includes a conical body and a guide plate, the conical portion of the conical body is arranged toward the direction of the pipeline inlet, and the guide plate is arranged around the surface of the conical body.
[0012] Optionally, the upper end of the baffle is connected to the inner tube wall of the concentrating branch pipe, and the lower end of the baffle is inclined downward toward the axial direction of the concentrating branch pipe.
[0013] Optionally, the concentrating branch pipe is arranged obliquely relative to the main pipe, the output end of the concentrating branch pipe is far away from the pipe outlet, and the input end of the concentrating branch pipe is close to the pipe outlet.
[0014] Optionally, a pressure control valve is also provided on the concentration branch pipe.
[0015] Optionally, the second concentrating device includes a plurality of the concentrating branch pipes, the input ends of the plurality of the concentrating branch pipes are respectively connected to the main pipeline, and the output ends of the plurality of the concentrating branch pipes are respectively connected to the second pumping pipe, and each of the concentrating branch pipes is provided with the pressure control valve.
[0016] Optionally, a static pool is further included, in which the outlet of the first water pumping pipe and the outlet of the second water pumping pipe converge; and the bottom surface of the static pool is an inclined surface.
[0017] Optionally, the main pipeline is further provided with a drainage section, which is arranged between the second concentrating device and the pipeline outlet; the drainage section is provided with a plurality of drainage holes along the circumferential direction, and the outer peripheral wall of the drainage section is sleeved with a second geotube bag.
[0018] Optionally, a water collection tank is provided below the drainage section.
[0019] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:
[0020] 1. The mud concentration pipeline of the utility model performs dehydration treatment during the process of conveying the mud, which effectively shortens the time of mud dehydration treatment and improves the dehydration efficiency. Within the same dehydration time, the mud dehydration effect is better and the digestion capacity of the disposal site for mud treatment can be improved.
[0021] 2. Using mud concentration pipelines to transport mud can reduce vehicle transportation costs, and the entire mud dehydration process is not affected by terrain or bad weather.
[0022] 3. The water separated by the mud concentration pipeline of the utility model can be reconnected to the consumption pool by laying pipelines for reuse, which effectively improves the utilization rate of water resources. In addition, only the sludge conveying pump and the variable pressure pump need to consume energy, so that the entire mud concentration pipeline has low energy consumption, environmental protection and energy saving. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 A schematic diagram of a mud concentration pipeline and flow direction according to an embodiment of the utility model;
[0024] Figure 2 This is a schematic diagram of the structure of the conical flow guide device of the utility model;
[0025] Figure 3 for Figure 1 The enlarged schematic diagram of point A in the middle;
[0026] Figure 4 for Figure 1 The enlarged schematic diagram of point B in the middle;
[0027] Figure 5 for Figure 1 Enlarged schematic diagram of point C in the middle.
[0028] Among them: main pipeline 1, pipeline inlet 10, pipeline outlet 11, drainage section 12, drainage hole 121, second geotube bag 122, first concentrating device 2, first pumping pipe 21, inlet section 210, pipe mouth 2101, support rod 213, through hole 211, first geotube bag 212, conical guide device 22, conical body 221, guide plate 222, fixing rod 223, second concentrating device 3, concentrating branch pipe 31, baffle 311, pressure control valve 312, second pumping pipe 32, positive and negative pressure generating device 4, static tank 5, outlet pipe 51, water collecting tank 6. DETAILED DESCRIPTION
[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0030] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "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 invention 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 invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of the features, and are used to distinguish and describe features, without distinction of order or importance.
[0031] See also Figures 1 to 4 In order to solve the above technical problems, the utility model proposes a mud concentration pipeline, comprising:
[0032] A main pipeline 1, wherein the main pipeline 1 comprises a pipeline inlet 10 and a pipeline outlet 11;
[0033] A first concentrating device 2, the first concentrating device 2 comprises a first water pumping pipe 21, a part of the first water pumping pipe 21 is arranged in the main pipeline 1, and the section of the first water pumping pipe 21 placed in the main pipeline 1 is provided with a through hole 211; the section of the first water pumping pipe 21 placed in the main pipeline 1 is sleeved with a first geotube bag 212, so that the first geotube bag 212 covers the through hole 211;
[0034] The second concentrating device 3 comprises a concentrating branch pipe 31 and a second water pumping pipe 32. The input end of the concentrating branch pipe 31 is connected to the main pipeline 1. The connecting position of the concentrating branch pipe 31 and the main pipeline 1 is on the side of the first geotube bag 212 close to the pipeline outlet 11. A plurality of baffles 311 are arranged in the concentrating branch pipe 31 to form a staggered fluid channel inside the concentrating branch pipe 31. The output end of the concentrating branch pipe 31 is connected to the second water pumping pipe 32.
[0035] The positive and negative pressure generating device 4 is connected to the first water pumping pipe 21 and the second water pumping pipe 32 to provide positive pressure and / or negative pressure to the first water pumping pipe 21 and the second water pumping pipe 32 .
[0036] In the above embodiment, a partial section of the first pumping pipe 21 is arranged in the main pipeline 1, and a through hole 211 is provided in the section of the first pumping pipe 21 placed in the main pipeline 1; the section of the first pumping pipe 21 placed in the main pipeline 1 is sleeved with a first geotube bag 212, so that the first geotube bag 212 covers the through hole 211, so that when the mud is dehydrated, the liquid flows out through the through hole 211 on the first pumping pipe 21, and the first geotube bag 212 plays a role in filtering solid particles, thereby realizing dehydration and concentration treatment while the mud is being transported, thereby improving the dehydration efficiency. The second concentrating device 3 is provided with a plurality of baffles 311 in the concentrating branch pipe 31 so as to form a staggered fluid channel inside the concentrating branch pipe 31 so as to form a complex fluid flow path, so that the mud collides and contacts with the baffles 311 multiple times during the flow process, thereby promoting the separation of solid particles and liquid in the mud. The multiple collisions and contacts increase the relative movement speed between the solid particles and the liquid, improve the dehydration effect, and also help prevent a large number of solid particles from being instantly sucked into the concentrating branch pipe 31, affecting the dehydration effect.
[0037] The utility model effectively shortens the time of mud dehydration and improves the dehydration efficiency by simultaneously performing dehydration and concentration treatment on the mud during transportation. Within the same dehydration time, the dehydration effect of the mud is better, and it is also beneficial to improve the digestion capacity of the disposal site for mud treatment. The use of mud concentration pipelines to transport mud can reduce the transportation cost of vehicles, and solves the technical problems of the existing mud transportation methods, such as high transportation cost, greater environmental impact, long mud dehydration time and low efficiency.
[0038] It should be noted that the utility model uses a mud delivery pump to pump mud into the main pipeline 1 , so that the flow direction of the mud is from the pipeline inlet 10 of the main pipeline 1 to the pipeline outlet 11 .
[0039] Optionally, there are multiple through holes 211 , and the multiple through holes 211 are evenly distributed in the section where the first water pumping pipe 21 is placed in the main pipeline 1 .
[0040] Optionally, the shape of the partial section of the first pumping pipe 21 located in the main pipeline 1 can be various, for example, it can be arranged perpendicular to the main pipeline 1, or it can be arranged in a U-shape, as long as the first pumping pipe 21 can be extended into the main pipeline 1 and the liquid in the mud can be discharged from the through hole 211 set on the section of the first pumping pipe 21 located in the main pipeline 1.
[0041] Optionally, the positive and negative pressure generating device 4 can be a multifunctional pump or a variable pressure pump, and the positive and negative pressure generating device 4 is connected to the first pumping pipe 21 and the second pumping pipe 32 to provide positive pressure and / or negative pressure to the first pumping pipe 21 and the second pumping pipe 32. It should be noted that the positive and negative pressure generating device 4 can be provided with multiple output ends, each of which can be independently controlled to provide positive pressure or negative pressure, and each output end is respectively connected to the first pumping pipe 21 and the second pumping pipe 32, and can respectively control the pressure inside the first pumping pipe 21, the second pumping pipe 32 and the concentration branch pipe 31. Of course, multiple positive and negative pressure generating devices 4 can also be used for separate control. The positive and negative pressure generating device 4 forms a negative pressure in the space connected to the first pumping pipe 21 or the second pumping pipe 32 and the concentration branch pipe 31 by reducing pressure to achieve dehydration, and each pipeline can be backwashed by pressurizing to avoid clogging of the pipeline by solid particles, especially to avoid clogging of the through hole 211 and the first geotube bag 212 by solid particles.
[0042] Optionally, the main pipeline 1 can be buried below the ground, which can save space above ground, reduce natural and man-made damage, and the pipeline layout is flexible and stable in use.
[0043] See also Figure 3 , further explained, the first water pumping pipe 21 includes an inlet section 210, the inlet section 210 is placed on the axis of the main pipeline 1 and parallel to the main pipeline 1, the diameter of the inlet section 210 is smaller than the diameter of the main pipeline 1; the pipe mouth 2101 of the inlet section 210 is conical and is set in the direction of the pipeline inlet 10; the pipe mouth 2101 is in a closed state; the inlet section 210 is fixedly connected to the inner pipe wall of the main pipeline 1 through a support rod 213.
[0044] In the above embodiment, the inlet section 210 of the first water pumping pipe 21 is arranged on the axis of the main pipeline 1 and parallel to the main pipeline 1, the pipe mouth 2101 of the inlet section 210 is closed, conical and arranged in the direction of the pipeline inlet 10, and the through hole 211 is opened on the pipe wall of the inlet section 210. Of course, the number of the through holes 211 can be set to multiple, so that the liquid in the mud can enter the first water pumping pipe 21 from multiple directions, and the inlet section 210 can be arranged longer in the main pipeline 1, so that the utility model can achieve efficient dehydration processing in a limited space; and the conical closed pipe mouth 2101 can make the impact force of the mud on the inlet section 210 of the first water pumping pipe 21 be dispersed and buffered to a certain extent, thereby reducing the impact and wear of the mud on the first water pumping pipe 21.
[0045] Furthermore, the inlet section 210 can be fixedly connected to the inner tube wall of the main pipe 1 through a support rod 213, which effectively improves the stability of the inlet section 210 of the first pumping pipe 21 and prevents it from shaking and being damaged when impacted by mud. Optionally, the number of the support rods 213 can be multiple, and the multiple support rods 213 are arranged at intervals along the length direction of the inlet section 210 of the first pumping pipe 21, and are arranged at intervals along the circumferential direction of the tube wall of the inlet section 210, which further improves stability, is conducive to increasing the service life of the first pumping pipe 21, and reduces maintenance costs.
[0046] See also Figure 2 , further explained, the first concentrating device 2 also includes a conical guide device 22, the conical guide device 22 is arranged on the side of the inlet section 210 close to the pipeline inlet 10, the axis of the conical guide device 22 coincides with the axis of the inlet section 210, and the conical guide device 22 is fixedly connected to the inner pipe wall of the main pipeline 1 through a fixing rod 223; the conical guide device 22 includes a conical body 221 and a guide plate 222, the conical portion of the conical body 221 is arranged toward the direction of the pipeline inlet 10, and the guide plate 222 is arranged around the surface of the conical body 221.
[0047] By setting the conical guide device 22, the mud first passes through the conical guide device 22 and then passes through the first water pumping pipe 21, which can share the impact force of the mud on the first water pumping pipe 21 and reduce the impact and wear of the mud on the first water pumping pipe 21; by setting the conical guide device 22 to include a conical body 221 and a guide plate 222, the cone of the conical body 221 is set toward the pipeline inlet 10, and the guide plate 222 is arranged around the surface of the conical body 221, so that the impact force of the mud on the conical guide device 22 can also be dispersed and buffered to a certain extent. The setting of the guide plate 222 can change the flow direction of the mud, so that the distribution of the mud in the main pipeline 1 is more uniform, avoiding the mud directly impacting the first water pumping pipe 21 and causing damage to the first water pumping pipe 21. Optionally, the number of the fixing rods 223 can be multiple, and the multiple fixing rods 223 are arranged at intervals along the circumferential direction of the conical flow guide device 22 to improve the installation stability of the conical flow guide device 22.
[0048] See also Figure 4 , further explained, the upper end of the baffle 311 is connected to the inner tube wall of the concentration branch pipe 31 , and the lower end of the baffle 311 is inclined downward toward the axial direction of the concentration branch pipe 31 .
[0049] By setting the baffle 311 to be tilted downward, it is beneficial to stagger the multiple baffles 311 so that staggered fluid channels are formed inside the concentration branch pipe 31. It can also make the mud collide and contact with the baffle 311 multiple times during the flow process, shorten the upward flow path of the liquid, and accelerate the dehydration speed of the mud. Moreover, the mud will form a natural downward flow trend during the flow process, and the downward tilted baffle 311 can prevent the mud from accumulating above the baffle 311 and affecting the flow speed.
[0050] See also Figure 1 and Figure 4 , further illustrating that the concentrating branch pipe 31 is arranged obliquely relative to the main pipeline 1 , the output end of the concentrating branch pipe 31 is far away from the pipeline outlet 11 , and the input end of the concentrating branch pipe 31 is close to the pipeline outlet 11 .
[0051] The concentrating branch pipe 31 is inclined relative to the main pipeline 1, the output end of the concentrating branch pipe 31 is far away from the pipeline outlet 11, and the input end of the concentrating branch pipe 31 is close to the pipeline outlet 11, so that the angle between the concentrating branch pipe 31 and the main pipeline 1 is acute. Since the mud flows forward continuously, the structure of this embodiment helps to reduce the solid particles in the mud from being sucked into the concentrating branch pipe 31 and affecting the dehydration effect.
[0052] See also Figure 4 , further explained, the concentration branch pipe 31 is also provided with a pressure control valve 312 .
[0053] By setting a pressure control valve 312 on the concentrating branch pipe 31, wherein the pressure control valve 312 acts as a safety device, when the internal pressure of the concentrating branch pipe 31 is too high, the pressure control valve 312 is opened to release the pressure inside the concentrating branch pipe 31, thereby preventing the concentrating branch pipe 31 from being broken and damaged due to excessive internal pressure, reducing the energy required for high-pressure operation, and reducing operating costs. Specifically, when the main pipeline 1 or the concentrating branch pipe 31 is blocked, the pressure control valve 312 is used to discharge the pressure of the concentrating branch pipe 31 before maintenance to ensure the safety of maintenance personnel; the pressure control valve 312 is also used to discharge the pressure before the mud concentrating pipeline is started, so as to solve the problems of low dehydration efficiency and high energy consumption caused by poor gas circulation in the main pipeline 1 before startup.
[0054] See also Figure 1 , further explained, the second concentrating device 3 includes a plurality of the concentrating branch pipes 31, the input ends of the plurality of the concentrating branch pipes 31 are respectively connected to the main pipeline 1, and the output ends of the plurality of the concentrating branch pipes 31 are respectively connected to the second pumping pipe 32, and each of the concentrating branch pipes 31 is provided with the pressure control valve 312.
[0055] By arranging a plurality of the thickening branches 31 on the main pipeline 1 along the direction of the pipeline outlet 11, the dehydration path is increased during the transportation of the mud, the time of mud dehydration treatment is effectively shortened, the dehydration efficiency is improved, and the dehydration effect of the mud is better within the same dehydration time. Optionally, the plurality of the thickening branches 31 are arranged in parallel with each other.
[0056] See also Figure 1 , further explained, it also includes a static pool 5, the outlet of the first pumping pipe 21 and the outlet of the second pumping pipe 32 converge in the static pool 5; the bottom surface of the static pool 5 is an inclined surface.
[0057] By setting the static pool 5 for secondary separation, the solid particles entering the static pool 5 can be settled to the bottom surface of the static pool 5 by gravity. Optionally, a water outlet pipe 51 can also be set on the static pool 5 to drain the liquid in the static pool 5 back to the consumption pool for reuse, effectively improving the utilization rate of water resources. Optionally, the bottom surface of the static pool 5 is set as an inclined plane, preferably, the inclined plane is inclined upward in the direction of the water outlet pipe 51 of the static pool 5. The solid particles can automatically slide to the bottom of the inclined plane, the sedimentation position of the solid particles is more concentrated, and the lower end of the inclined plane is set in a direction away from the water outlet pipe 51, which can prevent the solid particles from being re-drained back to the consumption pool.
[0058] See also Figure 1 and Figure 5 , further explained, the main pipeline 1 is also provided with a drainage section 12, and the drainage section 12 is arranged between the second concentrating device 3 and the pipeline outlet 11; the drainage section 12 is provided with a plurality of drainage holes 121 along the circumferential direction, and the outer peripheral wall of the drainage section 12 is provided with a second geotube bag 122.
[0059] Since the mud has been dehydrated and concentrated by the first concentrating device 2 and the second concentrating device 3, when the mud flows to the drainage section 12, the water content of the mud has been greatly reduced, the viscosity has increased, and the fluidity has decreased. At this time, the dehydration effect of the first concentrating device 2 or the second concentrating device 3 is not good, and higher energy consumption is required to maintain the dehydration operation. Therefore, by setting the drainage section 12 between the second concentrating device 3 and the pipeline outlet 11, the mud continues to be dehydrated by gravity, and the mud continues to be dehydrated during the transportation process without increasing additional energy consumption, thereby further shortening the mud dehydration time and improving the treatment efficiency.
[0060] Furthermore, the drainage section 12 may be a pipe formed by a steel mesh, with the steel mesh holes serving as drainage holes, and the hole size of the steel mesh holes is less than 5 mm.
[0061] See also Figure 1 , further explained, a water collection tank 6 is arranged below the drainage section 12.
[0062] The water collection tank 6 is provided to collect the liquid filtered out by the drainage section 12. Furthermore, the water collection tank 6 can be provided below the ground, specifically, it can be dug directly below the drainage section 12. Optionally, pipelines can be reasonably laid on the water collection tank 6 to drain the liquid in the water collection tank 6 back to the consumption tank for reuse, thereby effectively improving the utilization rate of water resources.
[0063] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.
Claims
1. A mud concentration pipeline, characterized in that: include: A main pipeline, wherein the main pipeline includes a pipeline inlet and a pipeline outlet; a first concentrating device, the first concentrating device comprising a first water pumping pipe, a partial section of the first water pumping pipe being arranged in the main pipeline, the section of the first water pumping pipe arranged in the main pipeline being provided with a through hole; the section of the first water pumping pipe arranged in the main pipeline being provided with a first geotextile tube bag so that the first geotextile tube bag covers the through hole; A second concentrating device, the second concentrating device comprises a concentrating branch pipe and a second pumping pipe, the input end of the concentrating branch pipe is connected to the main pipe, and the connecting position of the concentrating branch pipe and the main pipe is on the side of the first geotube bag close to the pipe outlet; a plurality of baffles are arranged inside the concentrating branch pipe to form a staggered fluid channel inside the concentrating branch pipe; the output end of the concentrating branch pipe is connected to the second pumping pipe; A positive and negative pressure generating device is connected to the first water pumping pipe and the second water pumping pipe to provide positive pressure and / or negative pressure to the first water pumping pipe and the second water pumping pipe.
2. The mud concentration pipeline according to claim 1, characterized in that: The first water pumping pipe includes an inlet section, which is placed on the axis of the main pipe and parallel to the main pipe. The diameter of the inlet section is smaller than the diameter of the main pipe. The pipe mouth of the inlet section is conical and is set toward the direction of the pipe inlet. The pipe mouth is in a closed state. The inlet section is fixedly connected to the inner pipe wall of the main pipe by a support rod.
3. The mud concentration pipeline according to claim 2, characterized in that: The first concentrating device further comprises a conical flow guide device, which is arranged on a side of the inlet section close to the pipeline inlet, the axis of the conical flow guide device coincides with the axis of the inlet section, and the conical flow guide device is fixedly connected to the inner pipe wall of the main pipeline via a fixing rod; The conical flow guide device comprises a conical body and a flow guide plate. The conical portion of the conical body is arranged toward the direction of the pipeline inlet, and the flow guide plate is arranged around the surface of the conical body.
4. The mud concentration pipeline according to claim 1, characterized in that: The upper end of the baffle is connected to the inner tube wall of the concentrating branch pipe, and the lower end of the baffle is arranged to be inclined downward toward the axial direction of the concentrating branch pipe.
5. The mud concentration pipeline according to claim 1, characterized in that: The concentrating branch pipe is arranged obliquely relative to the main pipe, the output end of the concentrating branch pipe is far away from the pipe outlet, and the input end of the concentrating branch pipe is close to the pipe outlet.
6. The mud concentration pipeline according to claim 1, characterized in that: The concentration branch pipe is also provided with a pressure control valve.
7. The mud concentration pipeline according to claim 6, characterized in that: The second concentrating device comprises a plurality of concentrating branch pipes, the input ends of the plurality of concentrating branch pipes are respectively connected to the main pipeline, and the output ends of the plurality of concentrating branch pipes are respectively connected to the second pumping pipe, and each of the concentrating branch pipes is provided with the pressure control valve.
8. The mud concentration pipeline according to any one of claims 1 to 7, characterized in that: It also includes a static pool, where the outlet of the first water pumping pipe and the outlet of the second water pumping pipe converge; the bottom surface of the static pool is an inclined surface.
9. The mud concentration pipeline according to claim 1, characterized in that: The main pipeline is also provided with a drainage section, which is arranged between the second concentrating device and the pipeline outlet; the drainage section is provided with a plurality of drainage holes along the circumferential direction, and the outer peripheral wall of the drainage section is sleeved with a second geotube bag.
10. The mud concentration pipeline according to claim 9, characterized in that: A water collection tank is arranged below the drainage section.