Anti-blocking elbow structure and gangue slurry conveying system

Abstract

The application provides a kind of anti-blocking elbow structure and gangue slurry conveying system, and the anti-blocking elbow structure comprises: an elbow body, which has a first flow passage and a second flow passage inside, and the communication of the two forms an elbow cavity; the inner wall of the elbow cavity has a buffer cavity and a buffer channel; a movable part and an elastic part, the movable part is movably arranged in the elbow cavity; the elastic part is arranged in the buffer cavity; the surface of the movable part towards the inside of the elbow cavity has a first arc slope; an elastic vibration part is arranged in the elbow cavity; the inside of the elastic vibration part is filled with buffer solution and is communicated with the buffer channel; wherein, the gangue slurry in the elbow cavity impacts the first arc slope, drives the movable part to move, the movable part extrudes the buffer solution in the buffer cavity, drives the buffer solution inside the elastic vibration part to oscillate, so as to drive the elastic vibration part to undulate vibration towards the surface of the elbow cavity. The application effectively avoids the problem of elbow body blockage, improves the service life and working reliability of the elbow body.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal gangue slurry conveying pipeline, in particular to a anti-blocking elbow structure and a gangue slurry conveying system. BACKGROUND

[0002] Coal gangue is a waste produced in the process of coal production, and its yield is huge. When it is stored, it will cause serious pollution to the environment. In order to solve the problems of land occupation and secondary disasters such as collapse, landslide and spontaneous combustion caused by the ground storage of gangue, the existing technology proposes to fully study the separation space and goaf formed by coal mining, and to use a series of processing technologies such as crushing, sand making, grinding, and slurry making to make the coal gangue produced by coal mining into gangue slurry and inject it into the ground for grouting filling. The solidified gangue can reduce the settlement of the ground surface and protect the ecological environment of the mining area, thereby providing technical support for realizing the goal of "zero" discharge of gangue outside the mine.

[0003] At present, the coal gangue grouting system is to crush the gangue into gangue powder by two stages, to make the screened gangue powder into a slurry with appropriate concentration, to use scientific proportioning and fluidity, and to pump it into the goaf for grouting through the internal gangue slurry conveying system. However, in the pipeline conveying process, the goaf is far away from the slurry making equipment, and the mining area environment is relatively harsh, so high requirements are put forward for the service life and reliability of the gangue slurry conveying pipeline. In addition, due to the difference in terrain, the conveying pipeline must be bent to bypass the obstacles in some areas. However, the pump slurry pressure of the conveying pipeline is large, and the transmission speed of the gangue slurry is fast, which causes the gangue slurry to impact the bending area of the pipeline. This not only easily causes serious wear and tear inside the pipeline, but also causes the gangue slurry to easily deposit in the bending area due to the existence of the bending angle, thereby blocking the inside of the conveying pipeline and seriously reducing the conveying efficiency of the gangue slurry. SUMMARY

[0004] The present application provides a anti-blocking elbow structure and a gangue slurry conveying system to solve the problem of serious wear and tear and deposition in the bending area of the elbow of the gangue slurry conveying pipeline in the prior art.

[0005] To solve the above problems, according to one aspect of the present application, a kind of anti-blocking elbow structure is provided, comprising: elbow body, with the first flow channel and the second flow channel being communicated with each other in the inside, the middle axis of the first flow channel and the middle axis of the second flow channel have included angle, and the communication of both forms the elbow cavity of curved arrangement;Buffer chamber and buffer channel communicated with buffer chamber are formed on the inner wall of elbow cavity, buffer chamber is used to accommodate buffer solution;Movable element and elastic element, movable element is movably arranged in elbow cavity, and one side is slidably connected with buffer chamber;Elastic element is arranged in buffer chamber, and two ends are respectively connected with the inner wall of buffer chamber and movable element;The surface of movable element towards the inside of elbow cavity has first arc slope, and first arc slope is arranged obliquely relative to the flow direction of gangue slurry in the elbow cavity;Elastic vibration element is arranged in the elbow cavity and is connected with the inner wall of the elbow cavity and the movable element;Elastic vibration element is filled with buffer solution in the inside and is sealed with buffer channel, and is sealed with buffer channel;Elastic vibration element is made of elastic material;Wherein, gangue slurry in the elbow cavity impacts first arc slope, drives movable element to move, movable element extrudes buffer solution in buffer chamber, and drives buffer solution in the inside of elastic vibration element to oscillate, so as to drive elastic vibration element to undulate vibration towards the surface of elbow cavity.

[0006] Further, the surface of elastic vibration element towards the inside of elbow cavity is second arc slope;Second arc slope is arranged obliquely relative to the flow direction of gangue slurry in the elbow cavity;Elastic vibration element is made of elastic wear-resistant material, and has first cavity and a plurality of first cavities in the inside, one end of a plurality of first cavities is communicated with first cavity, and the other end is respectively towards second arc slope;A plurality of first cavities are arranged along the extension direction of first cavity;The extension direction of first cavity is perpendicular to the reciprocating direction of movable element, and the middle part of first cavity is communicated with buffer channel;Wherein, the buffer solution oscillating flows from the middle part of first cavity to both ends, drives second arc slope to undulate vibration from the middle to both sides through a plurality of first cavities.

[0007] Further, the inside of elastic vibration element further has second cavity and a plurality of second cavities, one end of a plurality of second cavities is communicated with second cavity, and the other end is respectively towards second arc slope;A plurality of second cavities are arranged along the extension direction of second cavity;The extension direction of second cavity is parallel to the reciprocating direction of movable element, and second cavity is communicated with first cavity;Wherein, the buffer solution oscillating enters second cavity from first cavity, and drives second arc slope to undulate vibration through a plurality of second cavities.

[0008] Further, the second cavity and the plurality of second cavity holes form a group of hole groups, the hole groups are a plurality of groups, the second cavities in the plurality of groups are arranged in parallel along the extension direction of the first cavity; the second cavity hole has a larger diameter than the first cavity hole; and / or, the elastic vibration member further has a plurality of third cavities, the plurality of third cavities are arranged in parallel to the first cavity respectively, and are in communication with the second cavity respectively, and the third cavity has an inner diameter size not less than the inner diameter size of the first cavity.

[0009] Further, the anti-blocking elbow structure further comprises a clamping block made of a corrosion-resistant metal material; the clamping block has a through hole inside, the through hole penetrates the clamping block, and the two ends are in communication with the middle part of the first cavity and the buffer channel respectively; the clamping block is fixedly arranged in the elbow cavity, and is in limiting cooperation with the inner wall of the first cavity to constrain the movement and elastic deformation of the elastic vibration member.

[0010] Further, the part of the elastic vibration member towards the buffer channel is an arc-shaped protruding part, the surface arc of the arc-shaped protruding part is matched with the arc of the inner wall of the elbow cavity; wherein, at least a part of the first cavity is located in the arc-shaped protruding part; the second arc-shaped slope is matched with the first arc-shaped slope; when the movable member reciprocates, the elastic vibration member is stretched or compressed, and the second arc-shaped slope is elastically deformed.

[0011] Further, the anti-blocking elbow structure further comprises a sealing shell, the sealing shell is fixedly covered on at least a part of the outside of the arc-shaped protruding part, and is in sealing and fixed cooperation with the inner wall of the elbow cavity to seal the buffer channel; the sealing shell is made of a corrosion-resistant metal material, and the surface arc of the sealing shell towards the inner wall of the elbow cavity is matched with the arc of the inner wall of the elbow cavity; when the elastic vibration member is stretched or compressed, the sealing shell limits the elastic deformation of the arc-shaped protruding part, so that the middle part of the first cavity is always in communication with the buffer channel.

[0012] Further, the two ends of the buffer channel are respectively a first via hole and a second via hole, the first via hole is in communication with the buffer cavity, and the second via hole is in communication with the through hole inside the clamping block; the clamping block is fixedly arranged at the second via hole; wherein, the extension direction of the buffer channel is parallel to the reciprocating direction of the movable member.

[0013] Further, the anti-blocking elbow structure further comprises a flow meter, the flow meter is arranged on the elbow body and is used for measuring the flow of the gangue slurry in the first flow channel or the second flow channel; the anti-blocking elbow structure further comprises a filter screen, the filter screen is arranged in the buffer channel and is used for filtering the buffer liquid entering the inside of the elastic vibration member.

[0014] According to another aspect of the present application, a gangue slurry conveying system is provided, the gangue slurry conveying system comprising the anti-blocking elbow structure described above, the gangue slurry conveying system further comprising a first conveying pipe and a second conveying pipe, the first conveying pipe being in communication with the first flow passage, and the second conveying pipe being in communication with the second flow passage; wherein the gangue slurry flows into the first flow passage through the first conveying pipe, and sequentially passes through the elbow cavity, the second flow passage and enters the second conveying pipe.

[0015] According to the technical scheme of the present application, the present application provides an anti-blocking elbow structure, comprising: an elbow body, having a first flow passage and a second flow passage in communication with each other inside, the central axis of the first flow passage and the central axis of the second flow passage having an included angle, and the communication part of the two forming an elbow cavity arranged in a curve; the inner wall of the elbow cavity having a buffer cavity and a buffer passage in communication with the buffer cavity, the buffer cavity being used for accommodating a buffer liquid; a movable member and an elastic member, the movable member being movably arranged in the elbow cavity and being in sliding sealing cooperation with the buffer cavity on one side; the elastic member being arranged in the buffer cavity and abutting against the inner wall of the buffer cavity and the movable member at both ends; the surface of the movable member towards the inside of the elbow cavity having a first arc-shaped inclined surface, the first arc-shaped inclined surface being arranged obliquely relative to the flow direction of the gangue slurry in the elbow cavity; an elastic vibration member being arranged in the elbow cavity and connected with the inner wall of the elbow cavity and the movable member; the elastic vibration member being filled with the buffer liquid inside and being in sealing cooperation with the buffer passage; the elastic vibration member being made of an elastic material; wherein the gangue slurry in the elbow cavity impacts the first arc-shaped inclined surface, drives the movable member to move, the movable member extrudes the buffer liquid in the buffer cavity, drives the buffer liquid inside the elastic vibration member to oscillate, so as to drive the elastic vibration member to undulate and vibrate towards the surface of the elbow cavity.

[0016] The application cooperates the buffer cavity, the buffer channel, the movable piece, the elastic piece and the elastic vibration piece to make the gangue slurry in the elbow cavity automatically impact the first arc-shaped slope when flowing, drive the movable piece to extrude the buffer liquid in the buffer cavity, drive the buffer liquid in the elastic vibration piece to oscillate, and then realize the undulating vibration of the elastic vibration piece to the surface of the elbow cavity. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings constituting a part of the specification of the application are used to provide further understanding of the application, the illustrative embodiments of the application and the description thereof are used to explain the application, and do not constitute improper limitation on the application. In the drawings:

[0018] Figure 1 The internal structure schematic view of the anti-blocking elbow pipe structure provided by the embodiment of the application is shown;

[0019] Figure 2 The partial structure enlarged view of the anti-blocking elbow pipe structure provided by the embodiment of the application at the position of the elastic vibration piece is shown;

[0020] Figure 3 The internal structure perspective view of the anti-blocking elbow pipe structure provided by the embodiment of the application is shown;

[0021] Figure 4 The internal structure perspective view of the anti-blocking elbow pipe structure provided by the embodiment of the application is shown;

[0022] Figure 5 The internal structure schematic view of the elbow pipe body provided by the embodiment of the application is shown;

[0023] Figure 6A cooperation diagram of the movable member and the elastic member provided by the embodiment of the present application is shown.

[0024] Figure 7 An external structure diagram of the anti-blocking elbow structure provided by the embodiment of the present application is shown.

[0025] Among the above-mentioned drawings, the following reference signs are included:

[0026] 10, elbow body; 11, first flow passage; 12, second flow passage; 13, elbow cavity; 14, buffer cavity; 15, buffer passage; 16, first through hole; 17, second through hole;

[0027] 20, movable member; 21, first arc-shaped slope;

[0028] 30, elastic member;

[0029] 40, elastic vibration member; 41, second arc-shaped slope; 42, first cavity; 43, first cavity hole; 44, second cavity; 45, second cavity hole; 46, third cavity; 47, arc-shaped protruding part;

[0030] 50, clamping block; 51, through hole;

[0031] 60, flow meter. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without any creative labor fall within the scope of protection of the present application.

[0033] As Figures 1 to 7As shown, an embodiment of the present invention provides an anti-blocking elbow structure, comprising: an elbow body 10, wherein a first flow channel 11 and a second flow channel 12 are interconnected, wherein the central axis of the first flow channel 11 and the central axis of the second flow channel 12 form an angle, and a curved elbow 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 elbow cavity 13, and 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 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 in contact with the inner wall of the buffer cavity 14 and the movable member 20; the movable member 20 is movably arranged in the elbow cavity 13, and the one side is in sliding sealing cooperation ... two ends are respectively in contact with the inner wall of the buffer cavity 1 0 has a first arc-shaped inclined surface 21 on the surface facing the inside of the bend cavity 13, and the first arc-shaped inclined surface 21 is inclined relative to the flow direction of the gangue slurry in the bend cavity 13; the elastic vibrating member 40 is arranged in the bend cavity 13 and is respectively connected to the inner wall of the bend cavity 13 and the movable member 20; the interior of the elastic vibrating member 40 is filled with a buffer solution 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 bend cavity 13 impacts the first arc-shaped inclined surface 21, driving the movable member 20 to move, and the movable member 20 squeezes the buffer solution in the buffer cavity 14, driving the buffer solution 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 bend cavity 13.

[0034] The application is characterized in that the buffer cavity 14, the buffer channel 15, the movable piece 20, the elastic piece 30 and the elastic vibration piece 40 are cooperatively arranged in the elbow pipe body 10, so that the gangue slurry in the elbow pipe cavity 13 automatically impacts the first arc-shaped slope 21 when flowing, drives the movable piece 20 to extrude the buffer liquid in the buffer cavity 14, drives the buffer liquid in the elastic vibration piece 40 to oscillate, and further realizes the undulating vibration of the elastic vibration piece 40 towards the surface of the elbow pipe cavity 13. The application is characterized in that the vibration of the movable piece 20 and the undulating vibration of the elastic vibration piece 40 towards the surface of the elbow pipe cavity 13 are utilized by the innovative structural design, so that the deposition of the gangue slurry on the surface of the movable piece 20 and the elastic vibration piece 40 is effectively reduced, the gangue slurry can flow more smoothly through the elbow pipe body 10, the problem of the blockage of the elbow pipe body 10 is effectively avoided, and the service life and the working reliability of the elbow pipe body 10 are improved. Furthermore, the first arc-shaped slope 21 is inclined relative to the flowing direction of the gangue slurry, so that the first arc-shaped slope 21 can convert the flow impact of most of the gangue slurry into the kinetic energy of the movable piece 20, and further cooperates with the elastic force of the elastic piece 30 to effectively reduce the impact abrasion in the elbow pipe cavity 13, thereby improving the service life of the elbow pipe body 10. The application has the advantages of simple structure, low cost, high gangue slurry conveying efficiency, convenient assembly and subsequent maintenance, and can effectively meet the actual use requirements of the service life and reliability of the gangue slurry conveying pipeline, and is suitable for large-scale popularization and use. The anti-blocking elbow pipe structure of the application can improve the stability of the pipeline conveying and reduce the maintenance cost when applied to the gangue slurry conveying system, and has a significant effect on improving the economic benefit of the gangue slurry conveying.

[0035] It should be noted that in one embodiment of the application, the central axis of the first flow-through channel 11 and the central axis of the second flow-through channel 12 are arranged perpendicularly to form an L-shaped joint structure. The buffer structure is formed by the newly designed movable piece 20, the elastic piece 30 and the buffer liquid filled in the back of the movable piece 20 (i.e. the buffer liquid in the buffer cavity 14), and the impingement surface of the movable piece 20 (i.e. the first arc-shaped slope 21) is designed as an arc-shaped slope. The above linkage structure can buffer the impact load of the high-pressure gangue slurry, so that the actual load borne by the first arc-shaped slope 21 is much smaller than the load when contacting, thereby achieving the purpose of preventing abrasion and improving the service life of the L-shaped joint structure.

[0036] In one embodiment of the application, the movable piece 20 and the elastic vibration piece 40 are made of high-strength wear-resistant rubber material, and the buffer liquid is made of specially designed anti-abrasion oil, which further improves the durability of the movable piece 20 and the elastic vibration piece 40.

[0037] As Figure 1 , Figure 2 , Figure 3 and Figure 4As shown in the drawings, the surface of the elastic vibrating member 40 towards the inside of the elbow cavity 13 is a second arc-shaped slope 41; the second arc-shaped slope 41 is arranged obliquely relative to the flow direction of the gangue slurry in the elbow 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 cavities 43 inside; one end of each of the plurality of first cavities 43 is in communication with the first cavity 42, and the other end of each of the plurality of first cavities 43 is towards the second arc-shaped slope 41; the plurality of first cavities 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 direction of the movable member 20, and the middle part of the first cavity 42 is in communication with the buffer channel 15; wherein the oscillating buffer solution flows from the middle part of the first cavity 42 to both ends, and drives the second arc-shaped slope 41 to vibrate from the middle part to both sides in turn through the plurality of first cavities 43.

[0038] By arranging the second arc-shaped slope 41, the impact force of the gangue slurry is further reduced, and the service life is prolonged; by arranging the extension direction of the first cavity 42 to be perpendicular to the reciprocating direction of the movable member 20 and the middle part of the first cavity 42 to be in communication with the buffer channel 15, the oscillating buffer solution can flow from the middle part of the first cavity 42 to both ends, and then the second arc-shaped slope 41 can be driven to vibrate from the middle part to both sides in turn through the plurality of first cavities 43, so that the gangue slurry deposited on the second arc-shaped slope 41 is efficiently removed by regular vibration.

[0039] As shown in the drawings, Figure 2 , Figure 3 and Figure 4 , the elastic vibrating member 40 further has a second cavity 44 and a plurality of second cavities 45 inside; one end of each of the plurality of second cavities 45 is in communication with the second cavity 44, and the other end of each of the plurality of second cavities 45 is towards the second arc-shaped slope 41; the plurality of second cavities 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 direction of the movable member 20, and the second cavity 44 is in communication with the first cavity 42; wherein the oscillating buffer solution enters the second cavity 44 from the first cavity 42, and drives the second arc-shaped slope 41 to vibrate through the plurality of second cavities 45.

[0040] By arranging the second cavity 44 and the plurality of second cavities 45, regular vibration of the second arc-shaped slope 41 is achieved in the direction perpendicular to the first cavity 42, and efficient removal of the gangue slurry on the second arc-shaped slope 41 is further achieved.

[0041] As shown in the drawings, Figure 3 and Figure 4As shown, a second cavity 44 and a plurality of second cavity holes 45 communicating with the second cavity 44 form a group of holes, and a plurality of groups of holes are provided, the second cavities 44 in the plurality of groups of holes are arranged in parallel and spaced apart 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 vibration piece 40 further has a plurality of third cavities 46 inside, the plurality of third cavities 46 are respectively arranged in parallel to the first cavity 42 and respectively communicate with the second cavity 44, and the inner diameter size of the third cavity 46 is not less than the inner diameter size of the first cavity 42.

[0042] Through the design of the first cavity 42, the first cavity hole 43, the second cavity 44, the second cavity hole 45 and the third cavity 46, the buffer solution is basically diffused from the middle of the elastic vibration piece 40 to both sides and then continues to diffuse to the adjacent cavities, which is reflected in the regular vibration on the surface of the elastic vibration piece 40; and since the flow rate of the gangue slurry is not constant, the impact load of each impact on the first arc slope 21 also has differences, so the expansion sizes of the first cavity hole 43 and the second cavity hole 45 are different, which is reflected in the series of vibrations on the surface of the elastic vibration piece 40 are not regular vibrations. Such irregular vibration can reduce the accumulation of gangue slurry on the second arc slope 41, and ensure that the gangue slurry at the bending pipe of the elbow pipe body can flow smoothly.

[0043] As shown in Figure 2 , Figure 3 and Figure 4 , the anti-blocking elbow pipe structure further comprises a clamping block 50 made of corrosion-resistant metal material; the clamping block 50 has a through hole 51 inside, the through hole 51 penetrates the clamping block 50 and respectively communicates with the middle of the first cavity 42 and the buffer passage 15 at both ends; the clamping block 50 is fixedly arranged in the elbow pipe cavity 13 and is in limiting cooperation with the inner wall of the first cavity 42 to constrain the movement and elastic deformation of the elastic vibration piece 40.

[0044] By arranging the clamping block 50, the movement and elastic deformation of the elastic vibration piece 40 are effectively constrained, and the middle of the first cavity 42 is ensured to be in communication with the buffer passage 15 at all times.

[0045] As shown in Figure 3 , Figure 4 and Figure 6 , the part of the elastic vibration piece 40 towards the buffer passage 15 is an arc convex portion 47, the surface arc of the arc convex portion 47 is adapted to the arc of the inner wall of the elbow pipe cavity 13; at least a part of the first cavity 42 is located in the arc convex portion 47; the second arc slope 41 is adapted to the first arc slope 21; when the movable piece 20 reciprocates, the elastic vibration piece 40 is stretched or compressed, and the second arc slope 41 is elastically deformed.

[0046] By setting the second arc-shaped slope 41 to be matched with the first arc-shaped slope 21, the curvature of the second arc-shaped slope 41 and the first arc-shaped slope 21 are matched with the flow rate of the gangue slurry, the turbulent flow formation of the gangue slurry and the direct impact on the second arc-shaped slope 41 and the first arc-shaped slope 21 are reduced, the fluid resistance is effectively reduced, the conveying efficiency is significantly improved, and the energy consumption is reduced.

[0047] In one specific embodiment of the present application, the outer contour of the elastic vibration piece 40 is fitted with the inner pipe wall of the horizontal section of the elbow pipe body, that is, the inner wall of the elbow pipe cavity 13 at one end of the second flow-through passage 12, and the second arc-shaped slope 41 is smoothly transitioned with the first arc-shaped slope 21; the movable piece 20 and the elastic vibration piece 40 can be fixedly connected by thermoplastic or glue sticking, or the elastic vibration piece 40 and the movable piece 20 can be integrally processed and formed by thermoplastic processing; the movable piece 20 is made of high-strength rubber material, which has higher wear resistance and better buffering characteristics than rigid metal material.

[0048] In addition, the elastic piece 30 can be a disc spring, the axial size of which is smaller than the radial size, and the overall shape is flat, which can provide larger carrying capacity after a small deformation; compared with ordinary spiral springs, the disc spring has better energy absorption characteristics, and after the disc springs are combined, the friction between the disc springs can also generate larger damping, thereby consuming more energy generated by vibration; during the compression process of the disc spring, the adjacent disc spring contact surfaces will rub and generate damping force to consume impact energy, and the disc spring compression process will also continuously absorb and consume impact load, and has good durability.

[0049] Specifically, the anti-blocking elbow pipe structure further comprises a sealing shell, which is fixedly covered on at least a part of the outside of the arc-shaped protruding part 47 and is sealingly and fixedly matched with the inner wall of the elbow 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 towards the inner wall of the elbow pipe cavity 13 is matched with the curvature of the inner wall of the elbow pipe cavity 13; when the elastic vibration piece 40 is stretched or compressed, the sealing shell limits the elastic deformation of the arc-shaped protruding part 47, so that the middle part of the first cavity 42 is always in communication with the buffer channel 15.

[0050] By setting the sealing shell, the sealing property between the outer contour of the elastic vibration piece 40 and the inner wall of the elbow pipe cavity 13 is effectively ensured, and the middle part of the first cavity 42 is always in communication with the buffer channel 15, avoiding the problem that the buffer liquid cannot timely fill the entire elastic vibration piece 40 due to excessive deformation of the elastic vibration piece 40.

[0051] As Figure 1 and Figure 5As shown, the two 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 communicated with the buffer cavity 14, and the second through hole 17 is communicated with a through hole 51 in the inside of 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 direction of the movable part 20.

[0052] In this way, the buffer channel 15 is easy to process and form, and the buffer channel 15 is convenient for subsequent sealing design, thereby effectively avoiding the leakage of the buffer solution.

[0053] As shown in Figure 1 , Figure 5 and Figure 7 , the anti-blocking elbow pipe structure further comprises a flow meter 60, the flow meter 60 is arranged on the elbow pipe body 10 and is used for measuring the flow of the gangue slurry in the first flow channel 11 or the second flow channel 12; the anti-blocking elbow pipe structure further comprises a filter screen, the filter screen is arranged in the buffer channel 15 and is used for filtering the buffer solution entering the inside of the elastic vibration part 40.

[0054] By arranging the flow meter 60, the real-time monitoring of the flow in the conveying process is realized, and the safety of the gangue slurry conveying is improved; by arranging the filter screen, the impurities in the buffer solution are prevented from entering the inside of the elastic vibration part 40, thereby effectively avoiding the problem of vibration failure of the elastic vibration part 40 due to internal blockage.

[0055] The application further provides a gangue slurry conveying system, the gangue slurry conveying system comprises the anti-blocking elbow pipe structure, and further comprises a first conveying pipe and a second conveying pipe, the first conveying pipe is communicated with the first flow channel 11, and the second conveying pipe is communicated with the second flow channel 12; wherein the gangue slurry flows into the first flow channel 11 through the first conveying pipe, and then sequentially passes through the elbow pipe cavity 13, the second flow channel 12 and enters the second conveying pipe.

[0056] In one specific embodiment of the application, the first conveying pipe and the second conveying pipe are respectively sealed and connected with the elbow pipe body 10 through a threaded connection mode, so as to facilitate maintenance and replacement.

[0057] In summary, the present application provides a kind of anti-blocking elbow structure and gangue slurry conveying system, the present application is by being arranged in elbow pipe body 10 buffer chamber 14, buffer channel 15, movable element 20, elastic element 30 and elastic vibration element 40 cooperation work, so that the gangue slurry in elbow pipe cavity 13 is automatically impacted first arc slope 21 when flowing, drive movable element 20 extrude buffer solution in buffer chamber 14, drive buffer solution inside elastic vibration element 40 oscillation, further realize the undulating vibration of elastic vibration element 40 towards the surface of elbow pipe cavity 13;The present application is innovatively structured, utilizes the vibration of movable element 20 and the undulating vibration of elastic vibration element 40 towards the surface of elbow pipe cavity 13, effectively reduces the deposition of gangue slurry on the surface of movable element 20 and elastic vibration element 40, more conducive to the smooth flow of gangue slurry through elbow pipe body 10, effectively avoid the problem of elbow pipe body 10 blockage, improve the service life and working reliability of elbow pipe body 10;And, by setting first arc slope 21 relative to the inclination of the flow direction of gangue slurry, so that first arc slope 21 can convert most of the flow impact of gangue slurry into the kinetic energy of movable element 20, then cooperate with the elastic force of elastic element 30, effectively reduce the impact wear in elbow pipe cavity 13, thereby also improve the service life of elbow pipe body 10;The present application is simple in structure and low in cost, can effectively improve the conveying efficiency of gangue slurry, easy to assemble and subsequent maintenance, can effectively meet the actual use requirements of service life and reliability of gangue slurry conveying pipeline, suitable for large-scale popularization and use;The anti-blocking elbow structure of the present application is used in gangue slurry conveying system in practical application, the present application not only improves the stability of pipeline conveying, but also reduces maintenance cost, has remarkable effect on improving the economic benefit of coal gangue slurry conveying.

[0058] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0059] The foregoing is considered as illustrative only of the principles of the application. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the application to the exact construction and practice described. Accordingly, all such variations are intended to be included within the scope of the present application as defined in the following claims, along with full equivalents thereof.

[0060] In the description of the present application, it is to be understood that the orientation or positional relationships indicated by terms such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "horizontal", "top", "bottom", and the like are generally based on the orientation or positional relationships shown in the drawings, and are merely intended to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of protection of the present application. The orientation terms "inner", "outer" refer to the inner and outer relative to the contour of the components themselves.

[0061] For the convenience of description, spatial relative terms such as "above", "upper", "top", "up", and the like can be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawings is inverted, the device described as "above" or "on" the other device or structure will be positioned "below" or "under" the other device or structure. Thus, the exemplary term "above" can include both the "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations) and the spatial relative descriptions used herein will be interpreted accordingly.

[0062] In addition, it should be noted that the use of the terms "first", "second", and the like do not have a special meaning, and therefore should not be construed as limiting the scope of protection of the present application, unless otherwise stated.

[0063] The above merely provides the preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.

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) communicating with each other, wherein the central axis of the first circulation channel (11) and the central axis of the second circulation channel (12) form an angle, and a curved curved tube cavity (13) is formed at the connection point between the two; a buffer cavity (14) and a buffer channel (15) communicating with 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 solution; 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 in sliding sealing cooperation with the buffer cavity (14); the elastic member (30) is arranged in the buffer cavity (14), and both ends thereof abut against the inner wall of the buffer cavity (14) and the movable member (20), respectively; 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 disposed in the curved tube cavity (13) and is connected to the inner wall of the curved tube cavity (13) and the movable member (20) respectively; 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 in sealing engagement with the buffer channel (15); the elastic vibrating member (40) is made of an elastic material; The gangue slurry in the curved pipe cavity (13) impacts the first arc-shaped inclined surface (21), driving 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, thereby driving the elastic vibrating member (40) to vibrate toward the surface of the curved pipe cavity (13); 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 cavities (43) inside, one end of each of the plurality of first cavities (43) is respectively connected to the first cavity (42), and the other end thereof is respectively facing the second arc-shaped inclined surface (41); the plurality of first cavities (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 of the first cavity (42) to both ends, and drives the second arc-shaped inclined surface (41) to vibrate in sequence from the middle to both sides through the plurality of first cavities (43); The elastic vibrating member (40) further comprises a second cavity (44) and a plurality of second cavities (45) therein, wherein one end of the plurality of second cavities (45) is respectively communicated with the second cavity (44), and the other end is respectively directed toward the second arc-shaped inclined surface (41); the plurality of second cavities (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 communicated with 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 cavities (45); A second cavity (44) and a plurality of second cavity holes (45) communicating with the second cavity (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 (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) being respectively arranged parallel to the first cavity (42) and 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).

2. The anti-blocking elbow structure according to claim 1, characterized in that: The anti-blocking elbow structure further includes a clamping block (50), wherein the clamping block (50) is made of a corrosion-resistant metal material; a through hole (51) is provided inside the clamping block (50), wherein the through hole (51) passes through the clamping block (50), and the two ends thereof are respectively connected to the middle of the first cavity (42) and the buffer channel (15); the clamping 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 vibrating member (40).

3. The anti-blocking elbow structure according to claim 2, 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.

4. The anti-blocking elbow structure according to claim 3, characterized in that: The anti-blocking elbow structure further includes a sealing shell, which covers and is fixed to at least a portion of the exterior of the arc-shaped protrusion (47) and is sealed and fixedly matched with the inner wall of the elbow 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 elbow cavity (13) is adapted to the curvature of the inner wall of the elbow 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).

5. The anti-blocking elbow structure according to claim 2, characterized in that: The buffer channel (15) has two openings at both ends, namely a first through hole (16) and a second through hole (17), wherein 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 extending direction of the buffer channel (15) is parallel to the reciprocating motion direction of the movable member (20).

6. The anti-blocking elbow structure according to claim 1, characterized in that: The anti-blocking elbow structure further includes a flow meter (60), which 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 further comprises 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).

7. A gangue slurry conveying system, characterized in that: The gangue slurry conveying system includes the anti-blocking elbow structure according to any one of claims 1 to 6, 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 elbow cavity (13) and the second circulation channel (12) in sequence and enters the second conveying pipe.

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