Anti-blocking elbow pipe structure and gangue slurry conveying system

Abstract

The invention provides an anti-blocking bent pipe structure and a gangue slurry conveying system, the anti-blocking bent pipe structure comprises a bent pipe body, the inside of the bent pipe body is provided with a first circulation channel and a second circulation channel, and a bent pipe cavity is formed at the communication position of the first circulation channel and the second circulation channel; a buffer cavity and a buffer channel are arranged on the inner wall of the bent pipe cavity; the movable part is movably arranged in the bent pipe cavity; the elastic piece is arranged in the buffer cavity; the surface, facing the interior of the bent pipe cavity, of the movable part is provided with a first arc-shaped slope. The elastic vibration piece is arranged in the pipe bending cavity; the elastic vibration part is filled with a buffer solution and is communicated with the buffer channel; the gangue slurry in the bent pipe cavity impacts the first arc-shaped slope to drive the movable part to move, and the movable part extrudes the buffer solution in the buffer cavity to drive the buffer solution in the elastic vibration part to vibrate so as to drive the elastic vibration part to fluctuate and vibrate towards the surface of the bent pipe cavity. The problem of blockage of the bent pipe body is effectively avoided, the service life of the bent pipe body is prolonged, and the working reliability of the bent pipe body is improved.

Description

Technical Field

[0001] The invention relates to the technical field of coal gangue slurry conveying pipelines, and in particular to an anti-blocking elbow structure and a coal gangue slurry conveying system. Background Art

[0002] Gangue is waste generated in the coal production process. It has a huge output and causes serious environmental pollution when stored. In order to solve the problem of land occupation caused by gangue stacking on the ground and the secondary disasters such as collapse, landslide, spontaneous combustion, etc. that may be caused by it, the existing technology intends to conduct a full study on the delamination space and goaf formed by coal mining, and use a series of processing techniques such as crushing, sand making, grinding, and pulping to make the gangue produced by coal mining into gangue slurry and inject it into the underground for grouting filling. The solidified gangue will reduce the surface subsidence, protect the ecological environment of the mining area, and provide technical support for achieving the goal of "zero" emission of mine gangue to the outside world.

[0003] At present, the gangue grouting system is to crush the gangue into gangue powder in two stages, make the sieved gangue powder into slurry of appropriate concentration, and pump it into the goaf for grouting through the gangue slurry conveying system inside it by using scientific proportion and fluidity; however, in the process of pipeline transportation, since the goaf is far away from the slurry making equipment and the mining environment is relatively harsh, high requirements are put forward for the life and reliability of the gangue slurry conveying pipeline. In addition, due to the difference in terrain, the conveying pipeline must be bent in some areas to bypass obstacles in the area. However, the pump slurry pressure of the conveying pipeline is relatively high, and the transmission speed of the gangue slurry is relatively fast, resulting in a large impact of the gangue slurry on the bending area in the bending section of the pipeline, which is not only easy to cause serious wear inside the pipeline, but also due to the existence of the bending angle, the gangue slurry is easy to deposit in the bending area, thereby blocking the inside of the conveying pipeline, and seriously reducing the conveying efficiency of the gangue slurry. Summary of the invention

[0004] The invention provides an anti-blocking bent pipe structure and a gangue slurry conveying system to solve the problems of severe wear and deposition blockage in the bent area of ​​the bent pipe of the gangue slurry conveying pipeline in the prior art.

[0005] In order to solve the above problems, according to one aspect of the present invention, there is provided an anti-blocking elbow structure, comprising: an elbow body, wherein a first flow channel and a second flow channel are connected to each other, the central axis of the first flow channel and the central axis of the second flow channel have an angle, and the connection between the two forms a curved elbow cavity; a buffer cavity and a buffer channel connected to the buffer cavity are provided on the inner wall of the elbow cavity, and the buffer cavity is used to accommodate a buffer; a movable part and an elastic part, wherein the movable part can be movably arranged in the elbow cavity, and one side thereof is slidably sealed with the buffer cavity; the elastic part is arranged in the buffer cavity, and the two ends thereof are respectively against the inner wall of the buffer cavity and the movable part. The movable part has a first arc-shaped inclined surface on its surface facing the inside of the curved pipe cavity, and the first arc-shaped inclined surface is inclined relative to the flow direction of the gangue slurry in the curved pipe cavity; the elastic vibrating part is arranged in the curved pipe cavity, and is respectively connected to the inner wall of the curved pipe cavity and the movable part; the interior of the elastic vibrating part is filled with a buffer solution and is connected to the buffer channel, and is sealed with the buffer channel; the elastic vibrating part is made of elastic material; wherein the gangue slurry in the curved pipe cavity impacts the first arc-shaped inclined surface, drives the movable part to move, and the movable part squeezes the buffer solution in the buffer cavity, driving the buffer solution inside the elastic vibrating part to oscillate, so as to drive the elastic vibrating part to vibrate up and down toward the surface of the curved pipe cavity.

[0006] Furthermore, the surface of the elastic vibrator facing the inside of the curved pipe cavity is a second curved slope; the second curved slope is inclined relative to the flow direction of the gangue slurry in the curved pipe cavity; the elastic vibrator adopts elastic wear-resistant material, and has a first cavity and a plurality of first cavity holes inside, one end of the plurality of first cavity holes is respectively connected to the first cavity, and the other end faces the second curved slope respectively; the plurality of first cavity holes are arranged at intervals along the extension direction of the first cavity; the extension direction of the first cavity is perpendicular to the reciprocating motion direction of the movable part, and the middle part of the first cavity is connected to the buffer channel; wherein, the oscillating buffer flows from the middle part of the first cavity to both ends, and drives the second curved slope to vibrate from the middle part to both sides in sequence through the plurality of first cavity holes.

[0007] Furthermore, the elastic vibrating part also has a second cavity and a plurality of second cavity holes inside, one end of the plurality of second cavity holes are respectively connected to the second cavity, and the other ends are respectively directed toward the second arc-shaped inclined surface; the plurality of second cavity holes are arranged at intervals along the extension direction of the second cavity; the extension direction of the second cavity is parallel to the reciprocating motion direction of the movable part, and the second cavity is connected to the first cavity; wherein the oscillating buffer enters the second cavity from the first cavity, and drives the second arc-shaped inclined surface to vibrate up and down through the plurality of second cavity holes.

[0008] Furthermore, a second cavity and a plurality of second cavity holes connected to the second cavity form a cavity group, there are multiple cavity groups, and the second cavities in the multiple cavity groups are arranged in parallel and spaced along the extension direction of the first cavity; the aperture of the second cavity hole is larger than the aperture of the first cavity hole; and / or, the elastic vibrator also has a plurality of third cavities inside, the plurality of third cavities are respectively arranged parallel to the first cavity and are respectively connected to the second cavity, and the inner diameter of the third cavity is not less than the inner diameter of the first cavity.

[0009] Furthermore, the anti-blocking bent pipe structure also includes a card block, which is made of corrosion-resistant metal material; the card block has a through hole inside, the through hole passes through the card block, and the two ends are respectively connected to the middle of the first cavity and the buffer channel; the card block is fixedly arranged in the bent pipe cavity, and cooperates with the inner wall of the first cavity to constrain the movement and elastic deformation of the elastic vibrator.

[0010] Furthermore, the portion of the elastic vibrating member facing the buffer channel is an arc-shaped protrusion, and the surface curvature of the arc-shaped protrusion is adapted to the curvature of the inner wall of the curved tube cavity; wherein, at least a portion of the first cavity is located in the arc-shaped protrusion; the second arc-shaped inclined surface is adapted to the first arc-shaped inclined surface; when the movable member reciprocates, the elastic vibrating member is stretched or compressed, and the second arc-shaped inclined surface undergoes elastic deformation.

[0011] Furthermore, the anti-blocking bent pipe structure also includes a sealing shell, which covers and is fixed to at least a portion of the outside of the arc-shaped protrusion, and is sealed and fixed with the inner wall of the bent pipe cavity to seal the buffer channel; the sealing shell is made of corrosion-resistant metal material, and the surface curvature of the sealing shell facing the inner wall of the bent pipe cavity is adapted to the curvature of the inner wall of the bent pipe cavity; when the elastic vibrating part is stretched or compressed, the sealing shell limits the elastic deformation of the arc-shaped protrusion so that the middle part of the first cavity is always connected to the buffer channel.

[0012] Furthermore, the openings at both ends of the buffer channel are respectively a first through hole and a second through hole, the first through hole is connected to the buffer cavity, and the second through hole is connected to the through hole inside the card block; the card block is fixedly arranged at the second through hole; wherein the extension direction of the buffer channel is parallel to the reciprocating motion direction of the movable part.

[0013] Furthermore, the anti-blocking elbow structure also includes a flow meter, which is arranged on the elbow body and is used to measure the flow of gangue slurry in the first circulation channel or the second circulation channel; the anti-blocking elbow structure also includes a filter screen, which is arranged in the buffer channel and is used to filter the buffer solution entering the elastic vibrating part.

[0014] According to another aspect of the present invention, a gangue slurry conveying system is provided, the gangue slurry conveying system includes the above-mentioned anti-blocking bent pipe structure, the gangue slurry conveying system also includes a first conveying pipe and a second conveying pipe, the first conveying pipe is connected to the first circulation channel, and the second conveying pipe is connected to the second circulation channel; wherein the gangue slurry flows into the first circulation channel through the first conveying pipe, and passes through the bent pipe cavity and the second circulation channel in turn into the second conveying pipe.

[0015] Applying the technical solution of the present invention, the present invention provides an anti-blocking elbow structure, including: a elbow body, wherein a first flow channel and a second flow channel are interconnected, the central axis of the first flow channel and the central axis of the second flow channel have an angle, and a curved elbow cavity is formed at the connection between the two; a buffer cavity and a buffer channel connected to the buffer cavity are provided on the inner wall of the elbow cavity, and the buffer cavity is used to accommodate a buffer; a movable part and an elastic part, wherein the movable part can be movably arranged in the elbow cavity, and one side is slidingly sealed with the buffer cavity; the elastic part is arranged in the buffer cavity, and the two ends are respectively abutted against the inner wall of the buffer cavity and the movable part; the movable part The surface of the movable part facing the inside of the curved pipe cavity has a first curved inclined surface, and the first curved inclined surface is inclined relative to the flow direction of the gangue slurry in the curved pipe cavity; the elastic vibrating part is arranged in the curved pipe cavity, and is respectively connected to the inner wall of the curved pipe cavity and the movable part; the interior of the elastic vibrating part is filled with a buffer solution and is connected to the buffer channel, and is sealed with the buffer channel; the elastic vibrating part is made of elastic material; wherein, the gangue slurry in the curved pipe cavity impacts the first curved inclined surface, driving the movable part to move, and the movable part squeezes the buffer solution in the buffer cavity, driving the buffer solution inside the elastic vibrating part to oscillate, so as to drive the elastic vibrating part to vibrate up and down toward the surface of the curved pipe cavity.

[0016] The present invention arranges a buffer chamber, a buffer channel, a movable part, an elastic part and an elastic vibrating part in the curved pipe body to cooperate with each other, so that the gangue slurry in the curved pipe cavity automatically impacts the first arc-shaped inclined surface when flowing, drives the movable part to squeeze the buffer in the buffer chamber, drives the buffer inside the elastic vibrating part to oscillate, and then realizes the up-and-down vibration of the elastic vibrating part toward the surface of the curved pipe cavity; the present invention uses the vibration of the movable part and the up-and-down vibration of the elastic vibrating part toward the surface of the curved pipe cavity through innovative structural design, effectively reduces the deposition of gangue slurry on the surfaces of the movable part and the elastic vibrating part, is more conducive to the smooth flow of gangue slurry through the curved pipe body, effectively avoids the problem of blockage of the curved pipe body, and improves the service life and working reliability of the curved pipe body; and, by arranging the first arc-shaped inclined surface to The flow direction of the gangue slurry is inclined so that the first arc-shaped inclined surface can convert most of the flow impact of the gangue slurry into the kinetic energy of the moving parts, and then cooperate with the elastic force of the elastic part to effectively reduce the impact wear in the elbow cavity, thereby also improving the service life of the elbow body; the present invention has a simple structure and low cost, can effectively improve the conveying efficiency of the gangue slurry, is easy to assemble and subsequently maintain, can effectively meet the actual use requirements for the life and reliability of the gangue slurry conveying pipeline, and is suitable for large-scale promotion and use; the anti-blocking elbow structure proposed by the present invention is actually used in the gangue slurry conveying system. It is found that the present invention not only improves the stability of pipeline transportation, but also reduces maintenance costs, and has a significant effect on improving the economic benefits of coal gangue slurry transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of the internal structure of the anti-blocking elbow structure provided by an embodiment of the present invention is shown;

[0019] Figure 2 An enlarged view of a portion of the structure of the anti-blocking elbow structure provided by an embodiment of the present invention at the position of the elastic vibrating member is shown;

[0020] Figure 3 A perspective view of the internal structure of the anti-blocking elbow structure provided by an embodiment of the present invention is shown;

[0021] Figure 4 A perspective view of the internal structure of the anti-blocking elbow structure provided by an embodiment of the present invention at another angle is shown;

[0022] Figure 5 A schematic diagram showing the internal structure of a curved pipe body provided by an embodiment of the present invention is shown;

[0023] Figure 6A schematic diagram showing the coordination of the movable member and the elastic member provided in an embodiment of the present invention is shown;

[0024] Figure 7 A schematic diagram of the external structure of the anti-blocking elbow structure provided by an embodiment of the present invention is shown.

[0025] The above drawings include the following reference numerals:

[0026] 10. elbow body; 11. first circulation channel; 12. second circulation channel; 13. elbow cavity; 14. buffer cavity; 15. buffer channel; 16. first through hole; 17. second through hole;

[0027] 20. movable part; 21. first arc-shaped inclined surface;

[0028] 30. Elastic parts;

[0029] 40. elastic vibrating member; 41. second arc-shaped inclined surface; 42. first cavity; 43. first cavity hole; 44. second cavity; 45. second cavity hole; 46. third cavity; 47. arc-shaped protrusion;

[0030] 50. Card block; 51. Through hole;

[0031] 60. Flow meter. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] like Figures 1 to 7As shown, an embodiment of the present invention provides an anti-blocking elbow structure, including: an elbow body 10, wherein a first flow channel 11 and a second flow channel 12 are connected to each other, the central axis of the first flow channel 11 and the central axis of the second flow channel 12 have an angle, and the connection between the two forms a curved elbow cavity 13; a buffer cavity 14 and a buffer channel 15 connected to the buffer cavity 14 are provided on the inner wall of the elbow cavity 13, and the buffer cavity 14 is used to accommodate a buffer; a movable member 20 and an elastic member 30, the movable member 20 can be movably arranged in the elbow cavity 13, and one side is slidably sealed with the buffer cavity 14; the elastic member 30 is arranged in the buffer cavity 14, and the two ends are respectively abutted against the inner wall of the buffer cavity 14 and the movable member 20; the movable member 20 is provided in the buffer cavity 14, and the two ends are respectively abutted against the inner wall of the buffer cavity 14 and the movable member 20; 0 has a first arc-shaped inclined surface 21 on the surface facing the inside of the curved tube cavity 13, and the first arc-shaped inclined surface 21 is inclined relative to the flow direction of the gangue slurry in the curved tube cavity 13; the elastic vibrating member 40 is arranged in the curved tube cavity 13, and is respectively connected to the inner wall of the curved tube cavity 13 and the movable member 20; the interior of the elastic vibrating member 40 is filled with a buffer and is connected to the buffer channel 15, and is sealed with the buffer channel 15; the elastic vibrating member 40 is made of elastic material; wherein, the gangue slurry in the curved tube cavity 13 impacts the first arc-shaped inclined surface 21, drives the movable member 20 to move, and the movable member 20 squeezes the buffer in the buffer cavity 14, driving the buffer inside the elastic vibrating member 40 to oscillate, so as to drive the elastic vibrating member 40 to vibrate up and down toward the surface of the curved tube cavity 13.

[0034] The present invention arranges a buffer chamber 14, a buffer channel 15, a movable part 20, an elastic part 30 and an elastic vibrating part 40 in the curved pipe body 10 to cooperate with each other, so that the gangue slurry in the curved pipe chamber 13 automatically impacts the first arc-shaped inclined surface 21 when flowing, drives the movable part 20 to squeeze the buffer in the buffer chamber 14, drives the buffer inside the elastic vibrating part 40 to oscillate, and then realizes the ups and downs vibration of the elastic vibrating part 40 toward the surface of the curved pipe chamber 13; the present invention uses an innovative structural design, utilizes the vibration of the movable part 20 and the ups and downs vibration of the elastic vibrating part 40 toward the surface of the curved pipe chamber 13, effectively reduces the deposition of gangue slurry on the surfaces of the movable part 20 and the elastic vibrating part 40, is more conducive to the smooth flow of gangue slurry through the curved pipe body 10, effectively avoids the problem of blockage of the curved pipe body 10, and improves the service life and working reliability of the curved pipe body 10. ; Moreover, by setting the first arc-shaped inclined surface 21 to be inclined relative to the flow direction of the gangue slurry, the first arc-shaped inclined surface 21 can convert most of the flow impact of the gangue slurry into the kinetic energy of the movable part 20, and then cooperate with the elastic force of the elastic part 30, effectively reducing the impact wear in the curved pipe cavity 13, thereby also improving the service life of the curved pipe body 10; the present invention has a simple structure and low cost, can effectively improve the conveying efficiency of the gangue slurry, is easy to assemble and subsequently maintain, can effectively meet the actual use requirements for the life and reliability of the gangue slurry conveying pipeline, and is suitable for large-scale promotion and use; the anti-blocking curved pipe structure proposed by the present invention has been used in the actual application of the gangue slurry conveying system. It is found that the present invention not only improves the stability of pipeline transportation, but also reduces maintenance costs, and has a significant effect on improving the economic benefits of coal gangue slurry transportation.

[0035] It should be noted that; in a specific embodiment of the present invention, the central axis of the first circulation channel 11 is perpendicular to the central axis of the second circulation channel 12 to form an L-shaped joint structure, and a buffer structure is formed by the newly designed movable part 20, elastic part 30 and buffer filled on the back of the movable part 20 (i.e., the buffer in the buffer chamber 14), and the slurry facing surface of the movable part 20 (i.e., the first curved slope 21) is designed to be a curved slope. The above-mentioned linkage structure can buffer the impact load of high-pressure gangue slurry, so that the actual load borne by the first curved slope 21 is much smaller than the load at the time of contact, thereby achieving the purpose of wear prevention and improving the service life of the L-shaped joint structure.

[0036] In a specific embodiment of the present invention, the movable part 20 and the elastic vibrating part 40 are both made of high-strength wear-resistant rubber material, and the buffer solution uses specially designed anti-wear oil, which further improves the durability of the movable part 20 and the elastic vibrating part 40.

[0037] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the surface of the elastic vibrator 40 facing the inside of the curved tube cavity 13 is a second arc-shaped inclined surface 41; the second arc-shaped inclined surface 41 is inclined relative to the flow direction of the gangue slurry in the curved tube cavity 13; the elastic vibrator 40 is made of elastic wear-resistant material, and has a first cavity 42 and a plurality of first cavity holes 43 inside, one end of the plurality of first cavity holes 43 is respectively connected to the first cavity 42, and the other end is respectively facing the second arc-shaped inclined surface 41; the plurality of first cavity holes 43 are arranged at intervals along the extension direction of the first cavity 42; the extension direction of the first cavity 42 is perpendicular to the reciprocating motion direction of the movable part 20, and the middle part of the first cavity 42 is connected to the buffer channel 15; wherein, the oscillating buffer flows from the middle part of the first cavity 42 to both ends, and drives the second arc-shaped inclined surface 41 to vibrate from the middle part to both sides in sequence through the plurality of first cavity holes 43.

[0038] By setting the second arc-shaped inclined surface 41, the impact force of the gangue slurry is further reduced and the service life is extended; by setting the extension direction of the first cavity 42 to be perpendicular to the reciprocating motion direction of the movable part 20, and the middle part of the first cavity 42 is connected with the buffer channel 15, the oscillating buffer can flow from the middle part of the first cavity 42 to both ends, and then the second arc-shaped inclined surface 41 can be driven to vibrate from the middle part to both sides in sequence through multiple first cavity holes 43, and the gangue slurry deposited on the second arc-shaped inclined surface 41 can be efficiently removed by regular vibration.

[0039] like Figure 2 , Figure 3 and Figure 4 As shown, the elastic vibrating member 40 further has a second cavity 44 and a plurality of second cavity holes 45 inside, one end of the plurality of second cavity holes 45 is respectively connected to the second cavity 44, and the other end is respectively directed toward the second arc-shaped inclined surface 41; the plurality of second cavity holes 45 are arranged at intervals along the extension direction of the second cavity 44; the extension direction of the second cavity 44 is parallel to the reciprocating motion direction of the movable member 20, and the second cavity 44 is connected to the first cavity 42; wherein, the oscillating buffer enters the second cavity 44 from the first cavity 42, and drives the second arc-shaped inclined surface 41 to vibrate up and down through the plurality of second cavity holes 45.

[0040] By providing the second cavity 44 and the plurality of second cavity holes 45 , regular vibration of the second arc-shaped inclined surface 41 is achieved in a direction perpendicular to the first cavity 42 , further achieving efficient removal of the gangue slurry on the second arc-shaped inclined surface 41 .

[0041] like Figure 3 and Figure 4As shown, a second cavity 44 and a plurality of second cavity holes 45 connected to the second cavity 44 form a cavity group, there are multiple cavity groups, and the second cavities 44 in the multiple cavity groups are arranged in parallel and spaced along the extension direction of the first cavity 42; the aperture of the second cavity hole 45 is larger than the aperture of the first cavity hole 43; and / or, the elastic vibrating member 40 further has a plurality of third cavities 46 inside, the plurality of third cavities 46 are respectively arranged parallel to the first cavity 42, and are respectively connected to the second cavity 44, and the inner diameter of the third cavity 46 is not less than the inner diameter of the first cavity 42.

[0042] Through the design of the above-mentioned first cavity 42, first cavity hole 43, second cavity 44, second cavity hole 45 and third cavity 46, the buffer solution basically diffuses from the middle of the elastic vibrating member 40 to both sides, and then continues to diffuse to the adjacent cavities, which is manifested as a regular vibration on the surface of the elastic vibrating member 40; and because the flow rate of the gangue slurry is not constant, the impact load of each impact on the first arc-shaped inclined surface 21 is also different, so the expansion sizes of the first cavity hole 43 and the second cavity hole 45 are different, and the series of vibrations on the surface of the elastic vibrating member 40 are not regular vibrations. This irregular vibration can reduce the accumulation of gangue slurry on the second arc-shaped inclined surface 41, ensuring that the gangue slurry at the bend of the bent pipe body can pass smoothly.

[0043] like Figure 2 , Figure 3 and Figure 4 As shown, the anti-blocking elbow structure also includes a block 50, which is made of corrosion-resistant metal material; the block 50 has a through hole 51 inside, the through hole 51 passes through the block 50, and the two ends are respectively connected to the middle of the first cavity 42 and the buffer channel 15; the block 50 is fixedly arranged in the elbow cavity 13, and is limitedly matched with the inner wall of the first cavity 42 to constrain the movement and elastic deformation of the elastic vibrator 40.

[0044] By providing the block 50 , the movement and elastic deformation of the elastic vibrating member 40 are effectively constrained, and the middle of the first cavity 42 is ensured to be connected with the buffer channel 15 at all times.

[0045] like Figure 3 , Figure 4 and Figure 6 As shown, the portion of the elastic vibrating member 40 facing the buffer channel 15 is an arc-shaped protrusion 47, and the surface curvature of the arc-shaped protrusion 47 is adapted to the curvature of the inner wall of the curved tube cavity 13; wherein, at least a portion of the first cavity 42 is located in the arc-shaped protrusion 47; the second arc-shaped inclined surface 41 is adapted to the first arc-shaped inclined surface 21; when the movable member 20 reciprocates, the elastic vibrating member 40 is stretched or compressed, and the second arc-shaped inclined surface 41 undergoes elastic deformation.

[0046] By setting the second curved slope 41 to match the first curved slope 21, the curvatures of the second curved slope 41 and the first curved slope 21 are matched with the flow rate of the gangue slurry, thereby reducing the turbulence formation of the gangue slurry and the direct impact on the second curved slope 41 and the first curved slope 21, effectively reducing the fluid resistance, significantly improving the transportation efficiency, and reducing energy consumption.

[0047] In a specific embodiment of the present invention, the outer contour of the elastic vibrator 40 fits the inner tube wall of the horizontal section of the curved tube body (i.e., the inner wall of one end of the curved tube cavity 13 facing the second circulation channel 12), and the second arc-shaped slope 41 smoothly transitions with the first arc-shaped slope 21; the movable part 20 and the elastic vibrator 40 can be fixedly connected by thermoplastic or glue bonding, or the elastic vibrator 40 and the movable part 20 can be integrally processed by thermoplastic processing; the movable part 20 is made of high-strength rubber material, which has higher wear resistance than rigid metal material and has good buffering properties.

[0048] In addition, the elastic member 30 can adopt a disc spring. The axial dimension of the disc spring is smaller than the radial dimension, and the whole is flat, which can provide a larger load-bearing capacity with a very small deformation. The disc spring has better energy absorption characteristics than ordinary coil springs, and after the disc springs are combined, the friction between the disc springs will also produce greater damping, thereby consuming more energy generated by vibration. During the compression process of the disc spring, friction will occur between the contact surfaces of adjacent disc springs, generating damping force to consume the impact energy, and the disc spring compression process will also continuously absorb and consume the impact load, and the durability is better.

[0049] Specifically, the anti-blocking bent pipe structure also includes a sealing shell, which covers and is fixed to at least a portion of the outside of the arc-shaped protrusion 47, and is sealed and fixed with the inner wall of the bent pipe cavity 13 to seal the buffer channel 15; the sealing shell is made of corrosion-resistant metal material, and the surface curvature of the sealing shell facing the inner wall of the bent pipe cavity 13 is adapted to the curvature of the inner wall of the bent pipe cavity 13; when the elastic vibrating member 40 is stretched or compressed, the sealing shell limits the elastic deformation of the arc-shaped protrusion 47, so that the middle part of the first cavity 42 is always connected to the buffer channel 15.

[0050] By setting up a sealed shell, the sealing between the outer contour of the elastic vibrator 40 and the inner wall of the curved tube cavity 13 is effectively guaranteed, and the middle part of the first cavity 42 is always connected to the buffer channel 15, thereby avoiding the problem that the buffer solution cannot fill the entire elastic vibrator 40 in time due to excessive deformation of the elastic vibrator 40.

[0051] like Figure 1 and Figure 5As shown, the openings at both ends of the buffer channel 15 are respectively a first through hole 16 and a second through hole 17, the first through hole 16 is connected to the buffer cavity 14, and the second through hole 17 is connected to the through hole 51 inside the block 50; the block 50 is fixedly arranged at the second through hole 17; wherein, the extension direction of the buffer channel 15 is parallel to the reciprocating motion direction of the movable part 20.

[0052] Such an arrangement not only ensures that the buffer channel 15 is easy to process and shape, but also makes the buffer channel 15 convenient for subsequent sealing design, thereby effectively preventing leakage of the buffer solution.

[0053] like Figure 1 , Figure 5 and Figure 7 As shown, the anti-blocking elbow structure also includes a flow meter 60, which is arranged on the elbow body 10 and is used to measure the flow of the gangue slurry in the first circulation channel 11 or the second circulation channel 12; the anti-blocking elbow structure also includes a filter screen, which is arranged in the buffer channel 15 and is used to filter the buffer solution entering the elastic vibrating member 40.

[0054] By setting up the flow meter 60, real-time monitoring of the flow rate during the transportation process is achieved, thereby improving the safety of the gangue slurry transportation; by setting up the filter net, impurities in the buffer solution are prevented from entering the elastic vibrating member 40, thereby effectively avoiding the problem of vibration failure of the elastic vibrating member 40 due to internal blockage.

[0055] The present invention also provides a gangue slurry conveying system, which includes the above-mentioned anti-blocking bent pipe structure, and the gangue slurry conveying system also includes a first conveying pipe and a second conveying pipe, the first conveying pipe is connected to the first circulation channel 11, and the second conveying pipe is connected to the second circulation channel 12; wherein the gangue slurry flows into the first circulation channel 11 through the first conveying pipe, and passes through the bent pipe cavity 13 and the second circulation channel 12 in turn into the second conveying pipe.

[0056] In a specific embodiment of the present invention, the first delivery pipe and the second delivery pipe are respectively sealed and connected to the curved pipe body 10 by threaded connection to facilitate maintenance and replacement.

[0057] In summary, the present invention provides an anti-blocking elbow structure and a gangue slurry conveying system. The present invention arranges a buffer chamber 14, a buffer channel 15, a movable part 20, an elastic part 30 and an elastic vibrating part 40 in the elbow body 10 to cooperate with each other, so that the gangue slurry in the elbow cavity 13 automatically impacts the first arc-shaped inclined surface 21 when flowing, drives the movable part 20 to squeeze the buffer in the buffer chamber 14, drives the buffer inside the elastic vibrating part 40 to oscillate, and then realizes the ups and downs vibration of the elastic vibrating part 40 toward the surface of the elbow cavity 13; the present invention, through innovative structural design, utilizes the vibration of the movable part 20 and the ups and downs vibration of the elastic vibrating part 40 toward the surface of the elbow cavity 13, effectively reduces the deposition of gangue slurry on the surfaces of the movable part 20 and the elastic vibrating part 40, is more conducive to the smooth flow of gangue slurry through the elbow body 10, effectively avoids the problem of blockage of the elbow body 10, and improves the elbow. The service life and working reliability of the body 10 are improved; and, by setting the first arc-shaped inclined surface 21 to be inclined relative to the flow direction of the gangue slurry, the first arc-shaped inclined surface 21 can convert most of the flow impact of the gangue slurry into the kinetic energy of the movable part 20, and then cooperate with the elastic force of the elastic part 30, effectively reducing the impact wear in the elbow cavity 13, thereby also improving the service life of the elbow body 10; the present invention has a simple structure and low cost, can effectively improve the conveying efficiency of the gangue slurry, is convenient for assembly and subsequent maintenance, can effectively meet the actual use requirements for the life and reliability of the gangue slurry conveying pipeline, and is suitable for large-scale promotion and use; the anti-blocking elbow structure proposed by the present invention is actually used in the gangue slurry conveying system. It is found that the present invention not only improves the stability of pipeline transportation, but also reduces maintenance costs, and has a significant effect on improving the economic benefits of coal gangue slurry transportation.

[0058] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0059] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0060] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0061] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0062] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An anti-blocking elbow structure, characterized in that: include: A curved tube body (10) has a first circulation channel (11) and a second circulation channel (12) which are connected to each other, the central axis of the first circulation channel (11) and the central axis of the second circulation channel (12) have an included angle, and a curved tube cavity (13) is formed at the connection point between the two; a buffer cavity (14) and a buffer channel (15) connected to the buffer cavity (14) are provided on the inner wall of the curved tube cavity (13); the buffer cavity (14) is used to accommodate a buffer; A movable member (20) and an elastic member (30), wherein the movable member (20) is movably arranged in the curved tube cavity (13), and one side thereof is slidably sealed with the buffer cavity (14); the elastic member (30) is arranged in the buffer cavity (14), and two ends thereof are respectively in contact with the inner wall of the buffer cavity (14) and the movable member (20); the surface of the movable member (20) facing the interior of the curved tube cavity (13) has a first arcuate inclined surface (21), and the first arcuate inclined surface (21) is arranged obliquely relative to the flow direction of the gangue slurry in the curved tube cavity (13); An elastic vibrating member (40) is arranged in the curved tube cavity (13) and is respectively connected to the inner wall of the curved tube cavity (13) and the movable member (20); the interior of the elastic vibrating member (40) is filled with the buffer solution and is in communication with the buffer channel (15), and is sealed and matched with the buffer channel (15); the elastic vibrating member (40) is made of elastic material; The gangue slurry in the curved pipe cavity (13) impacts the first arc-shaped inclined surface (21), driving the movable part (20) to move, and the movable part (20) squeezes the buffer solution in the buffer cavity (14), driving the buffer solution inside the elastic vibrating part (40) to oscillate, thereby driving the elastic vibrating part (40) to vibrate toward the surface of the curved pipe cavity (13).

2. The anti-blocking curved pipe structure according to claim 1, characterized in that: The surface of the elastic vibrating member (40) facing the inside of the curved tube cavity (13) is a second arc-shaped inclined surface (41); the second arc-shaped inclined surface (41) is arranged obliquely relative to the flow direction of the gangue slurry in the curved tube cavity (13); the elastic vibrating member (40) is made of elastic wear-resistant material, and has a first cavity (42) and a plurality of first cavity holes (43) inside, one end of each of the plurality of first cavity holes (43) is respectively connected to the first cavity (42), and the other end thereof is respectively connected to the second arc-shaped inclined surface (41); a plurality of first cavity holes (43) are arranged at intervals along the extension direction of the first cavity (42); the extension direction of the first cavity (42) is perpendicular to the reciprocating motion direction of the movable member (20), and the middle of the first cavity (42) is connected to the buffer channel (15); wherein the oscillating buffer flows from the middle to both ends of the first cavity (42), and drives the second arc-shaped inclined surface (41) to vibrate from the middle to both sides in sequence through the plurality of first cavity holes (43).

3. The anti-blocking curved pipe structure according to claim 2, characterized in that: The elastic vibrating member (40) further comprises a second cavity (44) and a plurality of second cavity holes (45) inside, wherein one end of the plurality of second cavity holes (45) is respectively connected to the second cavity (44), and the other end is respectively directed toward the second arc-shaped inclined surface (41); the plurality of second cavity holes (45) are arranged at intervals along the extension direction of the second cavity (44); the extension direction of the second cavity (44) is parallel to the reciprocating motion direction of the movable member (20), and the second cavity (44) is connected to the first cavity (42); wherein the oscillating buffer enters the second cavity (44) from the first cavity (42), and drives the second arc-shaped inclined surface (41) to vibrate up and down through the plurality of second cavity holes (45).

4. The anti-blocking bent pipe structure according to claim 3, characterized in that: A second cavity channel (44) and a plurality of second cavity holes (45) connected to the second cavity channel (44) form a cavity group, and the cavity groups are multiple, and the second cavities (44) in the multiple cavity groups are arranged in parallel and spaced apart along the extension direction of the first cavity channel (42); the aperture of the second cavity hole (45) is larger than the aperture of the first cavity hole (43); And / or, the elastic vibrating member (40) further comprises a plurality of third cavities (46) therein, the plurality of third cavities (46) are respectively arranged parallel to the first cavity (42) and are respectively connected to the second cavity (44), and the inner diameter of the third cavity (46) is not less than the inner diameter of the first cavity (42).

5. The anti-blocking curved pipe structure according to claim 2, characterized in that: The anti-blocking bent pipe structure also includes a clamping block (50), the clamping block (50) is made of corrosion-resistant metal material; the clamping block (50) has a through hole (51) inside, the through hole (51) passes through the clamping block (50), and the two ends are respectively connected to the middle part of the first cavity (42) and the buffer channel (15); the clamping block (50) is fixedly arranged in the bent pipe cavity (13), and is limitedly matched with the inner wall of the first cavity (42) to constrain the movement and elastic deformation of the elastic vibrating member (40).

6. The anti-blocking curved pipe structure according to claim 5, characterized in that: The portion of the elastic vibrating member (40) facing the buffer channel (15) is an arc-shaped protrusion (47), and the surface curvature of the arc-shaped protrusion (47) is adapted to the curvature of the inner wall of the curved tube cavity (13); wherein at least a portion of the first cavity (42) is located in the arc-shaped protrusion (47); the second arc-shaped inclined surface (41) is adapted to the first arc-shaped inclined surface (21); when the movable member (20) reciprocates, the elastic vibrating member (40) is stretched or compressed, and the second arc-shaped inclined surface (41) undergoes elastic deformation.

7. The anti-blocking bent pipe structure according to claim 6, characterized in that: The anti-blocking bent pipe structure also includes a sealing shell, which covers and is fixed to at least a portion of the outside of the arc-shaped protrusion (47), and is sealed and fixedly matched with the inner wall of the bent pipe cavity (13) to seal the buffer channel (15); the sealing shell is made of corrosion-resistant metal material, and the curvature of the surface of the sealing shell facing the inner wall of the bent pipe cavity (13) is compatible with the curvature of the inner wall of the bent pipe cavity (13); when the elastic vibrating member (40) is stretched or compressed, the sealing shell limits the elastic deformation of the arc-shaped protrusion (47) so that the middle of the first cavity (42) is always connected to the buffer channel (15).

8. The anti-blocking curved pipe structure according to claim 5, characterized in that: The openings at both ends of the buffer channel (15) are respectively a first through hole (16) and a second through hole (17); the first through hole (16) is connected to the buffer cavity (14), and the second through hole (17) is connected to the through hole (51) inside the clamping block (50); the clamping block (50) is fixedly arranged at the second through hole (17); wherein the extension direction of the buffer channel (15) is parallel to the reciprocating motion direction of the movable member (20).

9. The anti-blocking curved pipe structure according to claim 1, characterized in that: The anti-blocking elbow structure further comprises a flow meter (60), wherein the flow meter (60) is arranged on the elbow body (10) and is used to measure the flow rate of the gangue slurry in the first circulation channel (11) or the second circulation channel (12); The anti-blocking bent pipe structure also includes a filter screen, which is arranged in the buffer channel (15) and is used to filter the buffer solution entering the elastic vibrating member (40).

10. A gangue slurry conveying system, characterized in that: The gangue slurry conveying system includes the anti-blocking bent pipe structure according to any one of claims 1 to 9, and the gangue slurry conveying system also includes a first conveying pipe and a second conveying pipe, the first conveying pipe is connected to the first circulation channel (11), and the second conveying pipe is connected to the second circulation channel (12); wherein the gangue slurry flows into the first circulation channel (11) through the first conveying pipe, and sequentially passes through the bent pipe cavity (13) and the second circulation channel (12) to enter the second conveying pipe.

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