Tailings cemented filling pipeline transportation resistance optimization mechanism

Abstract

This invention belongs to the field of mine backfilling engineering technology, and relates to a tailings cemented backfilling pipeline conveying resistance optimization mechanism. It includes a tailings cemented backfilling pipeline body and a base plate. A first hollow box is fixedly connected to the top of the tailings cemented backfilling pipeline body near the discharge end. A hollow disc is fixedly connected to the discharge end of the tailings cemented backfilling pipeline body. A T-shaped groove is formed in the center of the hollow disc, and a resistance optimization component is arranged in the center of the hollow disc. This invention, through the setting of the resistance optimization component, can regulate the flow area of ​​the slurry discharge inside the tailings cemented backfilling pipeline body, thereby dynamically matching different slurry concentrations, flow rates, and pipe operating conditions. This controls the discharge flow rate and establishes a reasonable back pressure inside the pipe, suppressing semi-hollow pipe flow and gas-slurry disturbance, regulating the overall flow pattern of the pipeline, and balancing the pressure gradient inside the pipe, thereby reducing the local resistance at the end and the overall conveying resistance, achieving the effect of synergistic optimization of the backfilling pipeline resistance.

Description

Technical Field

[0001] This invention belongs to the field of mine backfilling engineering technology, and relates to a mechanism for optimizing the transport resistance of tailings cemented backfill pipelines. Background Technology

[0002] With deep mineral resource mining becoming the mainstream trend in mining development, tailings cemented backfilling technology, as a core key technology for practicing the concept of green mine construction, realizing safe support of goaf areas, and promoting the resource utilization of mineral processing tailings solid waste, has been widely used in underground metal mines and non-metal mines due to its environmental protection, high efficiency, and safety advantages. It has become an important technical means to solve industry pain points such as ground pressure control, surface subsidence, and tailings storage pollution in deep mining.

[0003] Tailings cemented backfill slurry is a high-concentration Bingham plastic fluid containing a large number of solid tailings particles. During long-distance pipeline transportation, it is prone to generating significant transportation resistance due to problems such as friction between the slurry and the inner wall of the pipeline, turbulent flow, sedimentation and accumulation of coarse particles, and local eddy impact. This not only increases pumping energy consumption but also easily leads to pipeline wear, blockage and other failures, affecting the efficiency of backfilling operations and even threatening the safety of underground mining.

[0004] Existing tailings cemented backfill pipelines mostly employ single drag reduction methods, such as adding water film drag reduction devices, replacing wear-resistant liners, and optimizing pipeline layout. While these methods can reduce the frictional resistance of the slurry along the pipeline, when the slurry concentration, flow rate, pipe pressure, and working conditions change, it is difficult to establish a reasonable back pressure at the discharge end. This can easily lead to semi-empty pipe flow and gas-slurry disturbance, resulting in a sudden increase in local resistance at the end, an imbalance in the overall pipe pressure gradient, and turbulent flow in the front, rear, and middle sections of the pipe, further increasing the overall transport resistance. Therefore, to address the above problems, a tailings cemented backfill pipeline transport resistance optimization mechanism is proposed. Summary of the Invention

[0005] The technical problem this invention aims to solve is that existing tailings cemented backfill pipelines mostly adopt a single drag reduction method, such as adding a water film drag reduction device, replacing the wear-resistant lining, and optimizing the pipeline layout. Although this method can reduce the frictional resistance of the slurry along the pipeline, when the slurry concentration, flow rate, pipe pressure, and working conditions change, it is difficult to establish a reasonable back pressure at the discharge end. This can easily lead to semi-empty pipe flow and gas-slurry disturbance, resulting in a sudden increase in local resistance at the end, an imbalance in the overall pipe pressure gradient, and turbulent flow in the front, rear, and middle sections of the pipe, further increasing the overall transport resistance.

[0006] The present invention discloses a tailings cemented backfill pipeline conveying resistance optimization mechanism, comprising a tailings cemented backfill pipeline body and a base plate. A first hollow box is fixedly connected to the top of the tailings cemented backfill pipeline body near the discharge end. A hollow disc is fixedly connected to the discharge end of the tailings cemented backfill pipeline body. A T-shaped groove is formed in the middle of the hollow disc. A resistance optimization component is arranged in the middle of the hollow disc. A support component is arranged in the middle of the base plate. The base plate and the tailings cemented backfill pipeline body are connected by the support component.

[0007] The resistance optimization component includes a T-shaped slider, an outer gear ring, an inner gear ring, and multiple sets of short shafts. The T-shaped slider is slidably connected to the middle of the T-shaped groove. One side of the outer gear ring is fixedly connected to the top of the T-shaped slider. The inner gear ring is fixedly connected to the inner ring of the outer gear ring. One end of each of the multiple short shafts is rotatably connected to the middle of the hollow disk.

[0008] The resistance optimization component also includes multiple sets of half gears, multiple sets of fan-shaped curved panels, a protective plate, and a support frame. Multiple half gears are respectively fixedly connected to the middle of multiple sets of short shafts. One end of multiple fan-shaped curved panels is respectively fixedly connected to the middle of multiple sets of half gears. The protective plate is fixedly connected to the middle of the external gear ring. The bottom of the support frame is fixedly connected to the inner wall of the bottom of the first hollow box. Multiple half gears mesh with the internal gear ring.

[0009] The resistance optimization component also includes a first servo motor, a rotating shaft, and a drive gear. The first servo motor is connected to the top of the support frame. One end of the rotating shaft is connected to the output end of the first servo motor. The end of the rotating shaft near the first servo motor is rotatably connected to one side of the first hollow box. The drive gear is fixedly connected to the end of the rotating shaft away from the first servo motor and meshes with an external gear ring.

[0010] The support assembly includes a second hollow box, a motor base, a second servo motor, and a reinforcing ring. The second hollow box is fixedly connected to one end of the base plate. The bottom of the motor base is fixedly connected to the inner wall of the bottom of the second hollow box. The second servo motor is connected to the middle of the motor base. The reinforcing ring is fixedly connected to one end of the tailings cemented filling pipe body near the hollow disc.

[0011] The support assembly also includes a U-shaped plate, two sets of support plates, and a bidirectional lead screw. The U-shaped plate is fixedly connected to the bottom of the reinforcing ring. The bottoms of the two support plates are respectively fixedly connected to the two ends of the top surface of the base plate. The two ends of the bidirectional lead screw are respectively rotatably connected to the middle of the two sets of support plates. One end of the bidirectional lead screw is connected to the output end of the second servo motor, and the end of the bidirectional lead screw near the second servo motor is rotatably connected to one side of the second hollow box.

[0012] The support assembly also includes two sets of first connecting shafts and two sets of guide columns. The two ends of the two first connecting shafts are respectively fixedly connected to the two sides of the U-shaped plate, and the two ends of the two guide columns are respectively fixedly connected to the middle of the two sets of support plates.

[0013] The support assembly also includes two sets of adjusting slide plates and four sets of baffles. The middle parts of the two adjusting slide plates are threaded to both ends of the bidirectional lead screw, and the two ends of the two adjusting slide plates are slidably connected to the two ends of the two sets of guide columns. The bottoms of the four baffles are fixedly connected to the two ends of the top surface of the two sets of adjusting slide plates.

[0014] The support assembly also includes two sets of second connecting shafts and two sets of movable adjustment plates. The two ends of the two second connecting shafts are respectively fixedly connected to the middle of the four sets of baffles. The bottom ends of the two movable adjustment plates are respectively rotatably connected to the middle of the two sets of second connecting shafts. The top ends of the two movable adjustment plates are respectively rotatably connected to the middle of the two sets of first connecting shafts.

[0015] The threads at both ends of the U-shaped plate rotate in opposite directions.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting the resistance optimization component, the flow area of ​​the slurry discharge inside the main body of the tailings cemented filling pipeline can be controlled, thereby dynamically matching different slurry concentrations, flow rates and pipe working conditions, thereby controlling the discharge flow rate and establishing a reasonable back pressure inside the pipe, suppressing semi-empty pipe flow and gas-slurry disturbance, regulating the overall flow state of the pipeline, balancing the pressure gradient inside the pipe, thereby reducing the local resistance at the end and the overall conveying resistance, and achieving the effect of synergistic optimization of the filling pipeline resistance.

[0017] By setting up support components, reliable load-bearing support and positioning fixation can be provided for the discharge end of the tailings cemented backfilling pipeline, thereby reducing the occurrence of swaying and vibration of the discharge end of the tailings cemented backfilling pipeline, as well as deformation of the pipeline interface and disturbance of the internal flow. This stabilizes the pressure distribution inside the pipe, reduces local turbulence and additional resistance caused by the shaking of the tailings cemented backfilling pipeline, and prevents the resistance increase caused by eccentric scouring and flow field distortion at the discharge end of the tailings cemented backfilling pipeline. In addition, it works in conjunction with the resistance optimization components to reduce the overall frictional resistance and local resistance at the end of the tailings cemented backfilling pipeline, thereby improving the stability of filling and conveying and the resistance reduction optimization effect. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the discharge end structure of the tailings cemented backfilling pipe body of the present invention.

[0021] Figure 3 This is a cross-sectional structural schematic diagram of the first hollow box of the present invention.

[0022] Figure 4 This is a cross-sectional structural diagram of the protective plate of the present invention.

[0023] Figure 5 This is a cross-sectional structural schematic diagram of the external gear ring of the present invention.

[0024] Figure 6 This is a schematic diagram of the T-shaped groove of the present invention.

[0025] Figure 7 This is a schematic diagram of the structure of the support component of the present invention.

[0026] Figure 8 This is a cross-sectional structural diagram of the U-shaped plate of the present invention.

[0027] In the diagram: 1. Tailings cemented backfill pipe body; 11. Base plate; 12. First hollow box; 13. Hollow disc; 14. T-slot; 2. T-shaped slider; 21. External gear ring; 22. Internal gear ring; 23. Short shaft; 3. Half gear; 31. Fan-shaped curved panel; 32. Protective plate; 33. Support frame; 4. First servo motor; 41. Rotating shaft; 42. Drive gear; 5. Second hollow box; 51. Motor base; 52. Second servo motor; 53. Reinforcing ring; 6. U-shaped plate; 61. Support plate; 62. Two-way lead screw; 7. First connecting shaft; 71. Guide column; 8. Adjusting slide plate; 81. Baffle; 9. Second connecting shaft; 91. Movable adjusting plate. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0030] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] Example 1 like Figures 1 to 8 As shown, a tailings cemented backfill pipeline conveying resistance optimization mechanism includes a tailings cemented backfill pipeline body 1 and a base plate 11. A first hollow box 12 is fixedly connected to the top of the tailings cemented backfill pipeline body 1 near the discharge end. A hollow disc 13 is fixedly connected to the discharge end of the tailings cemented backfill pipeline body 1. A T-shaped groove 14 is opened in the middle of the hollow disc 13. A resistance optimization component is arranged in the middle of the hollow disc 13. A support component is arranged in the middle of the base plate 11. The base plate 11 and the tailings cemented backfill pipeline body 1 are connected by the support component.

[0033] The resistance optimization component includes a T-shaped slider 2, an outer gear ring 21, an inner gear ring 22, and multiple sets of short shafts 23. The T-shaped slider 2 is slidably connected to the middle of the T-shaped groove 14. One side of the outer gear ring 21 is fixedly connected to the top of the T-shaped slider 2. The inner gear ring 22 is fixedly connected to the inner ring of the outer gear ring 21. One end of each of the multiple short shafts 23 is rotatably connected to the middle of the hollow disk 13.

[0034] The resistance optimization component also includes multiple sets of half gears 3, multiple sets of fan-shaped curved panels 31, a protective plate 32, and a support frame 33. Multiple half gears 3 are respectively fixedly connected to the middle of multiple sets of short shafts 23. One end of multiple fan-shaped curved panels 31 is respectively fixedly connected to the middle of multiple sets of half gears 3. The protective plate 32 is fixedly connected to the middle of the external gear ring 21. The bottom of the support frame 33 is fixedly connected to the inner wall of the bottom of the first hollow box 12. Multiple half gears 3 mesh with the internal gear ring 22.

[0035] The resistance optimization component also includes a first servo motor 4, a rotating shaft 41, and a drive gear 42. The first servo motor 4 is connected to the top of the support frame 33. One end of the rotating shaft 41 is connected to the output end of the first servo motor 4. The end of the rotating shaft 41 near the first servo motor 4 is rotatably connected to one side of the first hollow box 12. The drive gear 42 is fixedly connected to the end of the rotating shaft 41 away from the first servo motor 4. The drive gear 42 meshes with the external gear ring 21.

[0036] During operation, when conditions such as slurry concentration, flow rate, pipe pressure, and working surface conditions change, the first servo motor 4 can be driven to rotate the rotating shaft 41 and the drive gear 42. Since the drive gear 42 and the outer gear ring 21 are meshed, the rotation of the drive gear 42 will push the T-shaped slider 2 to rotate. During this rotation, the outer gear ring 21 will drive the T-shaped slider 2 to rotate in the middle of the T-groove 14, thus causing the outer gear ring 21 to rotate on the surface of the hollow disk 13. Simultaneously, the rotation of the outer gear ring 21 will also drive the inner gear ring 22 to move synchronously. Because the internal gear ring 22 meshes with the half gear 3, the rotation of the internal gear ring 22 will drive multiple sets of half gears 3 and short shafts 23 to rotate in the middle of the hollow disk 13. The rotation of the half gears 3 will drive the fan-shaped curved panel 31 to rotate. The rotation of the fan-shaped curved panel 31 can change the size of its blockage of the inner ring of the hollow disk 13. By adjusting the opening and closing size of the fan-shaped curved panel 31, the discharge diameter of the tailings cemented filling pipe body 1 can be changed, thereby precisely controlling the discharge slurry flow rate, so that the slurry is uniform and does not deviate during discharge, dispersing the outlet jet vortex and turbulent flow, and regulating the slurry flow pattern.

[0037] The operation of the first servo motor 4 can be stopped when the fan-shaped curved panel 31 is opened and closed to match the slurry flow rate. The support frame 33 can support the first servo motor 4, thereby improving the stability of the operation of the first servo motor 4. The first hollow box 12 can isolate the first servo motor 4 from the outside world. The first servo motor 4 is existing technology, and its working principle is common knowledge to those skilled in the art, so it will not be described in detail.

[0038] Meanwhile, the opening and closing size of the fan-shaped curved panel 31 can be controlled according to the flow rate of the slurry. When the slurry flow rate is too high, the opening and closing size of the fan-shaped curved panel 31 can be increased to reduce the flow rate, reduce the outlet kinetic energy loss and jet vortex resistance. When the slurry flow rate is too low, the fan-shaped curved panel 31 can be reduced to increase the flow rate and prevent coarse particles from settling and accumulating at the discharge end, and prevent pipe blockage and diameter reduction.

[0039] This step, through the setting of the resistance optimization component, can regulate the flow area of ​​the slurry discharge inside the main body 1 of the tailings cemented filling pipeline, thereby dynamically matching different slurry concentrations, flow rates and pipe working conditions. This controls the discharge flow rate and establishes a reasonable back pressure inside the pipe, suppresses semi-empty pipe flow and gas-slurry disturbance, regulates the overall flow pattern of the pipeline, and balances the pressure gradient inside the pipe, thereby reducing the local resistance at the end and the overall transport resistance, and achieving the effect of synergistic optimization of the filling pipeline resistance.

[0040] Example 2 like Figure 1 , Figure 2 , Figure 7 and Figure 8As shown, the support assembly includes a second hollow box 5, a motor base 51, a second servo motor 52, and a reinforcing ring 53. The second hollow box 5 is fixedly connected to one end of the base plate 11. The bottom of the motor base 51 is fixedly connected to the inner wall of the bottom of the second hollow box 5. The second servo motor 52 is connected to the middle of the motor base 51. The reinforcing ring 53 is fixedly connected to one end of the tailings cemented filling pipe body 1 near the hollow disc 13.

[0041] The support assembly also includes a U-shaped plate 6, two sets of support plates 61, and a bidirectional lead screw 62. The U-shaped plate 6 is fixedly connected to the bottom of the reinforcing ring 53. The bottoms of the two support plates 61 are respectively fixedly connected to the two ends of the top surface of the base plate 11. The two ends of the bidirectional lead screw 62 are respectively rotatably connected to the middle of the two sets of support plates 61. One end of the bidirectional lead screw 62 is connected to the output end of the second servo motor 52, and the end of the bidirectional lead screw 62 near the second servo motor 52 is rotatably connected to one side of the second hollow box 5.

[0042] The support assembly also includes two sets of first connecting shafts 7 and two sets of guide posts 71. The two ends of the two first connecting shafts 7 are respectively fixedly connected to the two sides of the U-shaped plate 6, and the two ends of the two guide posts 71 are respectively fixedly connected to the middle of the two sets of support plates 61.

[0043] The support assembly also includes two sets of adjusting slide plates and four sets of baffles 81. The middle parts of the two adjusting slide plates 8 are respectively threaded to the two ends of the bidirectional lead screw 62, and the two ends of the two adjusting slide plates 8 are respectively slidably connected to the two ends of the two sets of guide columns 71. The bottoms of the four baffles 81 are respectively fixedly connected to the two ends of the top surface of the two sets of adjusting slide plates 8.

[0044] The support assembly also includes two sets of second connecting shafts 9 and two sets of movable adjustment plates 91. The two ends of the two second connecting shafts 9 are respectively fixedly connected to the middle of the four sets of baffles 81. The bottom ends of the two movable adjustment plates 91 are respectively rotatably connected to the middle of the two sets of second connecting shafts 9. The top ends of the two movable adjustment plates 91 are respectively rotatably connected to the middle of the two sets of first connecting shafts 7.

[0045] The threads at both ends of the U-shaped plate 6 are rotated in opposite directions.

[0046] During operation, the support components can provide auxiliary support for the discharge end of the tailings cemented backfilling pipe body 1. At the same time, by driving the support components, the height difference between the discharge end of the tailings cemented backfilling pipe body 1 and the ground can be adjusted according to the actual terrain. When faced with this situation, the second servo motor 52 can be driven to drive the bidirectional lead screw 62 to rotate. The rotation of the bidirectional lead screw 62 will drive the two sets of adjusting slide plates 8 to move. At this time, the movement of the adjusting slide plates 8 will be limited by the guide column 71, thereby changing the movement trajectory of the two sets of adjusting slide plates 8, making them move in a straight line. Since the threads at both ends of the support plate 61 rotate in opposite directions, the two sets of adjusting slide plates 8 can gradually move closer or further apart in a straight line.

[0047] The movement of the adjusting slide plate 8 causes the baffle 81 and the second connecting shaft 9 to move synchronously. When the second connecting shaft 9 moves, it pulls on the bottom end of the movable adjusting plate 91, thereby generating a pushing and pulling force on the movable adjusting plate 91. This changes the tilt angle of the movable adjusting plate 91, causing both ends of the movable adjusting plate 91 to rotate at the middle of the first connecting shaft 7 and the second connecting shaft 9, respectively. As the tilt angle of the movable adjusting plate 91 changes, the height between the bottom plate 11 and the tailings cemented filling pipe body 1 also changes. This allows for flexible adjustment of the height between the tailings cemented filling pipe body 1 and the bottom plate 11 according to different terrains, thereby supporting the discharge end of the tailings cemented filling pipe body 1.

[0048] This step, through the installation of support components, provides reliable load-bearing support and positioning for the discharge end of the tailings cemented backfilling pipeline body 1. This reduces the occurrence of swaying and shaking at the discharge end of the tailings cemented backfilling pipeline body 1, pipeline swaying vibration, and deformation of pipeline interfaces and internal flow disturbance. This stabilizes the pressure distribution inside the pipe, reduces local turbulence and additional resistance caused by the shaking of the tailings cemented backfilling pipeline body 1, and prevents resistance increase caused by eccentric scouring and flow field distortion at the discharge end of the tailings cemented backfilling pipeline body 1. Furthermore, it works in conjunction with the resistance optimization components to reduce the overall frictional resistance and local resistance at the end of the tailings cemented backfilling pipeline body 1, thereby improving the stability of backfilling and conveying and the resistance reduction optimization effect.

[0049] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A tailings cemented backfill pipeline transport resistance optimization mechanism, comprising a tailings cemented backfill pipeline body (1) and a base plate (11), characterized in that: The tailings cemented backfilling pipe body (1) is fixedly connected to the top of the discharge end with a first hollow box (12). The tailings cemented backfilling pipe body (1) is fixedly connected to a hollow disc (13) at the discharge end. A T-shaped groove (14) is opened in the middle of the hollow disc (13). A resistance optimization component is provided in the middle of the hollow disc (13). A support component is provided in the middle of the bottom plate (11). The bottom plate (11) and the tailings cemented backfilling pipe body (1) are connected by the support component.

2. The tailings cemented backfill pipeline transport resistance optimization mechanism according to claim 1, characterized in that: The resistance optimization component includes a T-shaped slider (2), an outer gear ring (21), an inner gear ring (22), and multiple short shafts (23). The T-shaped slider (2) is slidably connected to the middle of the T-shaped groove (14). One side of the outer gear ring (21) is fixedly connected to the top of the T-shaped slider (2). The inner gear ring (22) is fixedly connected to the inner ring of the outer gear ring (21). One end of each of the multiple short shafts (23) is rotatably connected to the middle of the hollow disk (13).

3. The tailings cemented backfill pipeline transport resistance optimization mechanism according to claim 2, characterized in that: The resistance optimization component also includes multiple sets of half gears (3), multiple sets of fan-shaped curved panels (31), a protective plate (32), and a support frame (33). Multiple half gears (3) are fixedly connected to the middle of multiple sets of short shafts (23). One end of multiple fan-shaped curved panels (31) is fixedly connected to the middle of multiple sets of half gears (3). The protective plate (32) is fixedly connected to the middle of the external gear ring (21). The bottom of the support frame (33) is fixedly connected to the inner wall of the bottom of the first hollow box (12). Multiple half gears (3) mesh with the internal gear ring (22).

4. The tailings cemented backfill pipeline transport resistance optimization mechanism according to claim 3, characterized in that: The resistance optimization component also includes a first servo motor (4), a rotating shaft (41), and a drive gear (42). The first servo motor (4) is connected to the top of the support frame (33). One end of the rotating shaft (41) is connected to the output end of the first servo motor (4). The end of the rotating shaft (41) near the first servo motor (4) is rotatably connected to one side of the first hollow box (12). The drive gear (42) is fixedly connected to the end of the rotating shaft (41) away from the first servo motor (4). The drive gear (42) meshes with the external gear ring (21).

5. The tailings cemented backfill pipeline transport resistance optimization mechanism according to claim 1, characterized in that: The support assembly includes a second hollow box (5), a motor base (51), a second servo motor (52), and a reinforcing ring (53). The second hollow box (5) is fixedly connected to one end of the base plate (11). The bottom of the motor base (51) is fixedly connected to the inner wall of the bottom of the second hollow box (5). The second servo motor (52) is connected to the middle of the motor base (51). The reinforcing ring (53) is fixedly connected to one end of the tailings cemented filling pipe body (1) near the hollow disc (13).

6. The tailings cemented backfill pipeline transport resistance optimization mechanism according to claim 5, characterized in that: The support assembly also includes a U-shaped plate (6), two sets of support plates (61), and a bidirectional lead screw (62). The U-shaped plate (6) is fixedly connected to the bottom of the reinforcing ring (53). The bottoms of the two support plates (61) are respectively fixedly connected to the two ends of the top surface of the base plate (11). The two ends of the bidirectional lead screw (62) are respectively rotatably connected to the middle of the two sets of support plates (61). One end of the bidirectional lead screw (62) is connected to the output end of the second servo motor (52). The end of the bidirectional lead screw (62) near the second servo motor (52) is rotatably connected to one side of the second hollow box (5).

7. The tailings cemented backfill pipeline transport resistance optimization mechanism according to claim 6, characterized in that: The support assembly also includes two sets of first connecting shafts (7) and two sets of guide posts (71). The two ends of the two first connecting shafts (7) are respectively fixedly connected to the two sides of the U-shaped plate (6), and the two ends of the two guide posts (71) are respectively fixedly connected to the middle of the two sets of support plates (61).

8. The tailings cemented backfill pipeline transport resistance optimization mechanism according to claim 7, characterized in that: The support assembly also includes two sets of adjusting slide plates (8) and four sets of baffles (81). The middle parts of the two adjusting slide plates (8) are respectively threaded to the two ends of the two-way lead screw (62). The two ends of the two adjusting slide plates (8) are respectively slidably connected to the two ends of the two sets of guide columns (71). The bottoms of the four baffles (81) are respectively fixedly connected to the two ends of the top surface of the two sets of adjusting slide plates (8).

9. The tailings cemented backfill pipeline transport resistance optimization mechanism according to claim 8, characterized in that: The support assembly also includes two sets of second connecting shafts (9) and two sets of movable adjustment plates (91). The two ends of the two second connecting shafts (9) are fixedly connected to the middle of the four sets of baffles (81), the bottom ends of the two movable adjustment plates (91) are rotatably connected to the middle of the two sets of second connecting shafts (9), and the top ends of the two movable adjustment plates (91) are rotatably connected to the middle of the two sets of first connecting shafts (7).

10. The tailings cemented backfill pipeline transport resistance optimization mechanism according to claim 6, characterized in that: The threads at both ends of the U-shaped plate (6) are rotated in opposite directions.

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