Device for adding curing agent for underground gangue of coal mine

Abstract

The invention relates to the technical field of curing agent adding, and provides a curing agent adding device for coal mine underground gangue, which comprises a movable base, a material storage tank arranged on the movable base, a spiral conveying structure arranged at the bottom of the material storage tank, a conveying barrel, a conveying pipeline and movable self-walking equipment, a conveying pipe is communicated between the middle of the conveying barrel and the spiral conveying structure, the end, close to the movable base, of the conveying barrel is communicated with an air supply pipe, one side of the conveying pipeline is communicated with the conveying barrel, the other side of the conveying pipeline is communicated with a mixer, and a lifting frame is arranged on the movable self-walking equipment. By means of the technical scheme, the problem that in the prior art, in the using process of a conveying pipeline communicated between a curing agent storage tank and a mixer, due to the fact that the underground environment of a coal mine is complex, the conveying pipeline is inconvenient to protect and fix under the coal mine is solved.

Description

Technical Field

[0001] The invention relates to the technical field of curing agent addition, and in particular to a curing agent adding device for gangue in coal mines. Background Art

[0002] During the mining and processing of coal, the gangue contained in the mined coal will be screened out. The gangue mixed in the coal has a relatively high hardness. Therefore, in order to recycle the screened gangue, people are studying a gangue filling technology for underground coal mines, which is used to make solid waste gangue used for supporting operations underground in coal mines.

[0003] The specific implementation process of the gangue filling technology in underground coal mines includes crushing the gangue into powder, then adding the gangue powder into a mixer and adding various materials to mix it into a gangue paste. Coal miners will lay filling pipelines underground in the coal mine to allow the gangue paste to flow in the filling pipelines, so that the gangue paste can fill the corresponding areas in the coal mine. In the process of using the gangue paste for filling, in order to ensure the filling and supporting effect of the gangue paste in the coal mine, it is necessary to use a powdered curing agent in the gangue paste to mix it with the gangue paste to improve the subsequent curing effect of the gangue paste. There are two ways to transport the gangue paste and the curing agent in the prior art. The first is to solidify the gangue paste. The first method is to add the curing agent to the gangue gypsum and transport them together through the filling pipeline. The advantage of this method is that the curing agent and the gangue paste are evenly mixed, but the disadvantage is that the gangue gypsum mixed with the curing agent will be retained in the filling pipeline, causing inconvenience for the user to clean the gangue paste in the filling pipeline later. The second method is to transport the gangue paste and the curing agent respectively in different ways, and then add the gangue paste and the curing agent to a filling point at the same time. This method of use solves the trouble of subsequent cleaning of the filling pipeline, but it is easy to cause the problem of poor mixing effect between the gangue paste and the curing agent.

[0004] As people continue to study, they study moving the curing agent storage tank and the mixer to the vicinity of the filling point, and using a pipeline to connect the curing agent storage tank and the mixer, and choose to use the underground equipment gas supply system as the power source in the curing agent delivery process, and transport the gangue paste and the curing agent to the mixer for stirring, and then add the mixed gangue paste and curing agent to the filling point for filling. Unlike the choice of laying pipelines over a large area underground in the coal mine, users will move the curing agent storage tank and the mixer between multiple filling points underground in the coal mine. However, in the prior art, when the powdered curing agent in the curing agent storage tank is transported to the mixer, because gas is used as the conveying power for the powdered curing agent, this requires that the conveying pipeline needs to remain sufficiently smooth during use to prevent excessive bending of the conveying pipeline, ensure stable delivery of the curing agent, and avoid the problem of violent shaking of the conveying pipeline caused by gas. The environment underground in the coal mine is relatively complex, so it is difficult to set components for protecting and fixing the conveying pipeline underground in the coal mine. Summary of the invention

[0005] The present invention proposes a device for adding a curing agent to gangue in coal mines, which solves the problem in the prior art that during use, the conveying pipeline connecting the curing agent storage tank and the mixer is inconvenient to protect and fix the conveying pipeline in the coal mine due to the complex environment in the coal mine.

[0006] The technical solution of the present invention is as follows: a device for adding a curing agent to gangue in coal mines, comprising a mobile base, a storage tank is arranged on the mobile base, a spiral conveying structure is arranged at the bottom of the storage tank, and further comprising: A conveying cylinder, wherein the conveying cylinder is arranged on the spiral conveying structure, a material conveying pipe is connected between the middle part of the conveying cylinder and the spiral conveying structure, and an end of the conveying cylinder close to the mobile base is connected with an air supply pipe; A delivery pipeline, one side of which is connected to the delivery cylinder, and the other side of which is connected to a mixer; A mobile self-propelled device, wherein a lifting frame is arranged on the mobile self-propelled device, the mixer is moved and arranged in the lifting frame through a platform lifting assembly, a fixed frame is fixedly connected to the mobile self-propelled device, and a rope protection mechanism is arranged between the fixed frame and the conveying cylinder; A bending adjustment mechanism is provided between the mobile self-propelled equipment and the conveying cylinder.

[0007] In order to adjust the height of the mixer, further, the platform lifting assembly includes a lifting platform and a fixed ring sleeve, the lifting platform is slidably connected to the lifting frame, a screw lifting structure is arranged between the lifting platform and the lifting frame, a through opening is opened on the lifting platform, the fixed ring sleeve is arranged in the through opening, one side of the conveying pipeline passes through the fixed ring sleeve, and the outer wall of the conveying pipeline is in contact with the inner wall of the fixed ring sleeve.

[0008] In order to protect the conveying pipeline by the protective rope and limit the moving path of the conveying pipeline, further, the rope protection mechanism includes a connecting ring, a gathering ring, a protective rope and a winding structure, the connecting ring is fixedly connected to the conveying cylinder, the gathering ring is fixedly connected inside the fixed frame and on the conveying cylinder, a plurality of through holes are provided on the gathering ring, the number of the protective ropes is set to be multiple, the protective rope passes through the corresponding two through holes, and one end of the protective rope is fixedly connected to the connecting ring, the winding structure is provided on both sides of the interior of the fixed frame, and the protective rope on the same side is wound and arranged on the corresponding winding structure.

[0009] In order to reel in the protective rope, on the basis of the above-mentioned scheme, the reeling structure includes a rotating shaft and a first drive motor, the rotating shaft is rotatably connected in the fixed frame, a plurality of reeling cylinders are fixedly sleeved on the rotating shaft, the protective rope is reeled on the corresponding reeling cylinders, the first drive motor is arranged in the fixed frame, and the output end of the first drive motor is fixedly connected to the rotating shaft.

[0010] In order to prevent excessive bending of the conveying pipeline, further, the bending adjustment mechanism includes a mobile frame, an arc plate and a hook member, a plurality of self-locking universal wheels are arranged at the bottom of the mobile frame, a limiting ring sleeve is fixedly connected to the mobile frame, the protective rope and the conveying pipeline both pass through the limiting ring sleeve, the number of the arc plates is set to two, the two arc plates are respectively slidably arranged on both sides of the mobile frame, a lateral moving structure is arranged between the arc plate and the mobile frame, and a plurality of hook members are arranged on the mobile self-propelled equipment, and the hook members cooperate with the bottom of the mobile frame.

[0011] In order to enable the arc plate to move laterally in the moving frame, on the basis of the present solution, the lateral moving structure includes a transmission gear and an internal tooth groove, a rotating shaft is rotatably connected in the moving frame, the transmission gear is fixedly sleeved on the rotating shaft, and the internal tooth groove is opened on the side of the arc plate close to the transmission gear, and the internal tooth groove is meshed with the transmission gear.

[0012] In order to discharge the powdered curing agent in the spiral conveying structure into the conveying cylinder, on the basis of the present scheme, it further includes a rotating frame and a rotating cylinder, the rotating frame is fixedly connected to one end of the conveying cylinder close to the feeding pipe, the rotating cylinder is rotatably connected in the rotating frame, a second driving motor is arranged on the rotating frame, the output end of the second driving motor is fixedly connected to the rotating cylinder, and a plurality of knocking seats are fixedly connected to the rotating cylinder.

[0013] In order to replenish gas into the delivery pipeline in the middle area of ​​the delivery pipeline, on the basis of the present solution, further, it also includes a connecting socket, a plurality of the connecting sockets are connected on the delivery pipeline, one end of the connecting socket close to the delivery pipeline is inclined toward the direction of the mixer, and a closing valve is provided on the connecting socket.

[0014] In order to replenish gas into the delivery pipeline, on the basis of the present solution, it further includes a sliding cylinder and a curved gas filling pipe, the sliding cylinder is fixedly connected in the fixed frame, an inflatable cylinder is slidably arranged in the sliding cylinder, a spring damper is arranged between the inflatable cylinder and the inner top wall of the sliding cylinder, the top of the inflatable cylinder is connected to the inflatable pipe, the bottom of the inflatable cylinder is connected to the curved gas filling pipe, and a seal is arranged between the curved gas filling pipe and the connecting socket.

[0015] In order to maintain a sealed connection between the curved gas filling pipe and the connecting socket, on the basis of the above-mentioned scheme, further, the sealing member includes a threaded sleeve, the bottom of the curved gas filling pipe is rotatably connected to the threaded sleeve, and the connecting socket is provided with a threaded section at one end away from the conveying pipeline, and the threaded sleeve is threadedly connected to the threaded section.

[0016] The working principle and beneficial effects of the present invention are: 1. In the present invention, when it is necessary to use a conveying pipeline to convey the powdered curing agent in the storage tank to the mixer, firstly, a conveying pipeline of corresponding length is selected, one end of the conveying pipeline is connected to the mixer, and the conveying pipeline is passed through the fixed ring sleeve, the connecting ring sleeve, the gathering ring sleeve and the limiting ring sleeve in sequence, and then the lifting frame and the mobile frame are driven by the mobile self-propelled equipment to move along the specified path, so that the mixer is moved to the vicinity of the filling point, and a plurality of protective ropes are stretched in the connecting ring sleeve, the gathering ring sleeve and the limiting ring sleeve, so that the protective ropes are fully unwound between the area between the conveying cylinder and the fixed frame, and then the other end of the conveying pipeline is connected to the conveying cylinder. The cylinder is connected, and the conveying pipeline maintains sufficient extension when conveying the powdered curing agent, thereby improving the stability of the conveying pipeline when conveying the powdered curing agent, and the conveying pipeline is located between multiple protective ropes, and the protective rope maintains sufficient tension when unwinding in the area between the fixed frame and the conveying cylinder, which can improve the compression resistance and deformation resistance of the conveying pipeline. When the conveying pipeline needs to be bent in the underground tunnel of the coal mine, the position of the arc plate is adjusted to make the protective rope and the conveying pipeline bend along the arc surface of the arc plate, thereby preventing the conveying pipeline from bending due to the need to bend the conveying pipeline in the coal mine. 2. In the present invention, when the powdered curing agent in the spiral conveying structure is conveyed into the conveying cylinder, in order to avoid the problem of the powdered curing agent being retained in the conveying pipe, the rotating cylinder is driven to rotate, so that the multiple knocking seats knock the bottom of the conveying pipe in turn, so that the powdered curing agent in the conveying pipe is easily discharged into the conveying cylinder during the vibration process; 3. In the present invention, due to the influence of the underground terrain environment of the coal mine, it is sometimes inconvenient to move the storage tank to a position close to the filling point. At this time, it is necessary to use a longer conveying pipeline to convey the powdered curing agent. However, when the conveying pipeline is used to convey the powdered curing agent over a long distance, the gas in the conveying cylinder is prone to the problem of unfavorable pushing of the powdered curing agent and excessive pressure in the conveying pipeline. In order to solve this problem, the conveying pipeline used in the present application is connected with a plurality of connecting sockets. During the use of the conveying pipeline, one of the connecting sockets is moved to the inner area of ​​the fixed frame to keep the bent gas pipe and the connecting socket connected. Then, by supplying air to the connecting socket, and making the direction of the airflow entering the conveying pipeline consistent with the direction of the conveying pipeline for the powdered curing agent, the powdered curing agent can be more easily entered into the mixer. 4. Therefore, the device for adding a curing agent for gangue in coal mines can ensure the stability of the conveying pipeline when conveying the powdered curing agent, and further improve the accuracy of the conveyed amount of the powdered curing agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 It is a schematic diagram of the structure of a partial cross-section of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 It is a schematic diagram of a partial cross-section of the structure of the cooperation between the lifting frame and the platform lifting assembly in the present invention; Figure 4 It is a partial cross-sectional structural diagram of the cooperation of the mobile self-propelled equipment, the fixed frame, the conveying cylinder, the rope protection mechanism and the bending adjustment mechanism in the present invention; Figure 5 It is a partial cross-sectional structural diagram of the cooperation among the mobile self-propelled equipment, the fixed frame, the conveying pipeline and the rope protection mechanism in the present invention; Figure 6 It is a structural schematic diagram of the bending adjustment mechanism in the present invention; Figure 7 For the present invention Figure 4 A schematic diagram of the local enlarged structure at point A in the middle; Figure 8 For the present invention Figure 4 A schematic diagram of the local enlarged structure at B in the middle; Fig. 9 It is a schematic diagram of the structure of the cooperation among the conveying cylinder, the conveying pipe, the conveying pipeline and the rotating frame in the present invention; Fig.10 For the present invention Figure 5 A schematic diagram of the local enlarged structure at C in the middle; Fig.11 It is a schematic structural diagram of a partial cross-section of the cooperation of the delivery pipeline, the connecting socket, the curved gas-filling pipe and the threaded sleeve in the present invention.

[0019] In the figure: 100, platform lifting assembly; 200, rope protection mechanism; 300, bending adjustment mechanism; 1. Mobile base; 2. Storage tank; 3. Conveying cylinder; 4. Conveying pipe; 5. Conveying pipeline; 6. Mixer; 7. Mobile self-propelled equipment; 8. Lifting frame; 9. Fixed frame; 10. Lifting platform; 11. Fixed ring; 12. Connecting ring; 13. Gathering ring; 14. Protective rope; 15. Rotating shaft; 16. Retracting cylinder; 17. First driving motor; 18. Mobile frame; 19. Self-locking universal wheel; 20. Limiting ring; 21. Curved plate; 22. Hook 1. Part; 23. Transmission gear; 24. Rotating shaft; 25. Internal tooth groove; 26. Rotating frame; 27. Rotating cylinder; 28. Second drive motor; 29. ​​Knocking seat; 30. Connecting socket; 31. Sliding cylinder; 32. Inflatable cylinder; 33. Spring damper; 34. Inflatable pipe; 35. Bending gas pipe; 36. Threaded sleeve; 37. Feeding cylinder; 38. Screw conveying rod; 39. Motor drive device; 40. Transmission screw; 41. Third drive motor; 42. Air supply pipe. DETAILED DESCRIPTION

[0020] The following will be combined with 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, not all of the embodiments. 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.

[0021] like Figures 1 to 11 As shown, this embodiment proposes a device for adding a curing agent for gangue in coal mines, comprising a mobile base 1, a storage tank 2 is arranged on the mobile base 1, and a moving wheel is arranged at the bottom of the mobile base 1, so that the mobile base 1 and the storage tank 2 can be moved in the coal mine, and a spiral conveying structure is arranged at the bottom of the storage tank 2, and the spiral conveying structure includes a feeding cylinder 37, and the feeding cylinder 37 is connected and arranged at the bottom of the storage tank 2, and a spiral conveying rod 38 is rotatably arranged in the feeding cylinder 37, and a motor driving device 39 for driving the spiral conveying rod 38 to rotate is arranged on the outer side of the feeding cylinder 37, and a feeding port is connected to the top of the storage tank 2, and a sealing cover is hinged in the feeding port, and powdered curing agent can be added into the storage tank 2 through the feeding port, and then the powdered curing agent is allowed to enter the feeding cylinder 37, and then the powdered curing agent is discharged through the feeding cylinder 37 by driving the spiral conveying rod 38 to rotate; It also includes a conveying cylinder 3, which is arranged on a spiral conveying structure, a conveying pipe 4 is connected between the middle of the conveying cylinder 3 and the spiral conveying structure, and an air supply pipe 42 is connected to one end of the conveying cylinder 3 close to the mobile base 1. The conveying cylinder 3 is fixedly connected to the bottom of the conveying cylinder 37 through a bracket, and the powdered curing agent discharged from the conveying cylinder 37 will enter the conveying pipe 4, and then the powdered curing agent will continue to enter the conveying cylinder 3 through the conveying pipe 4, and gas is added into the conveying cylinder 3 through the air supply pipe 42, so that the gas drives the powdered curing agent to be transported in the direction of the mobile self-propelled device 7; One side of the conveying pipeline 5 is connected to the conveying cylinder 3, and the other side of the conveying pipeline 5 is connected to the mixer 6. The mixer 6 is a common device in the prior art for mixing gangue paste and powdered curing agent. It is a prior art device well known to those skilled in the art. The mixer 6 is also connected to a feed pipe for allowing the gangue paste to enter the mixer 6. The powdered curing agent and the gangue paste are conveyed to the mixer 6 together and stirred thoroughly, and then added to the filling point underground in the coal mine.

[0022] A lifting frame 8 is provided on the mobile self-propelled device 7, and the mixer 6 is movably arranged in the lifting frame 8 through a platform lifting assembly 100. The platform lifting assembly 100 includes a lifting platform 10 and a fixed ring sleeve 11. The lifting platform 10 is slidably connected to the lifting frame 8. A screw lifting structure is provided between the lifting platform 10 and the lifting frame 8. The screw lifting structure includes a transmission screw 40. The transmission screw 40 is rotatably connected in the lifting frame 8. A third drive motor 41 is provided in the lifting frame 8. The output end of the third drive motor 41 is fixedly connected to the transmission screw 40. A through opening is opened on the lifting platform 10, and a fixed ring sleeve 11 is provided in the through opening. One side of the conveying pipeline 5 passes through the fixed ring sleeve 11. The fixed ring sleeve 11, and the outer wall of the conveying pipeline 5 is in contact with the inner wall of the fixed ring sleeve 11. When it is necessary to drive the lifting platform 10 to move longitudinally in the lifting frame 8 to adjust the use height of the mixer 6, the third drive motor 41 is started to drive the transmission screw 40 to rotate, so that the transmission screw 40 drives the lifting platform 10 and the mixer 6 to move longitudinally in the lifting frame 8, and the height of the mixer 6 is adjusted to facilitate the mixing of the gangue paste into the filling points at different positions. When adjusting the height of the mixer 6, in order to fix the moving path of the conveying pipeline 5 in the lifting frame 8, the inner wall of the fixed ring sleeve 11 is in contact with the conveying pipeline 5 to control the moving path of the conveying pipeline 5; A fixed frame 9 is fixedly connected to the mobile self-propelled device 7, and a rope protection mechanism 200 is arranged between the fixed frame 9 and the conveying cylinder 3. The rope protection mechanism 200 includes a connecting ring 12, a gathering ring 13, a protective rope 14 and a winding structure. The connecting ring 12 is fixedly connected to the conveying cylinder 3, and the gathering ring 13 is fixedly connected inside the fixed frame 9 and on the conveying cylinder 3. The gathering ring 13 is provided with a plurality of through holes, and the number of the protective ropes 14 is set to be multiple. The material of the protective rope 14 is metal material. The protective rope 14 passes through two corresponding through holes, and one end of the protective rope 14 is fixedly connected to the connecting ring 12. Winding structures are arranged on both sides of the interior of the fixed frame 9, and the protective rope 14 on the same side is wound and arranged on the corresponding winding structure. The mobile self-propelled device 7 is a prior art mobile device that can be controlled and moved underground in a coal mine in the prior art, and is a technical device well known to those skilled in the art. By using the mobile self-propelled device 7, the fixed frame 9, the lifting frame 8 and the mobile frame 18 can be moved underground in a coal mine; When the protective rope 14 is needed to protect the conveying pipeline 5, firstly, because one side of the protective rope 14 is fixedly connected to the connecting ring sleeve 12, when the mobile self-propelled device 7 drives the fixed frame 9 to move, the winding structure can unwind the protective rope 14, so that the protective rope 14 is unwound between the fixed frame 9 and the connecting ring sleeve 12, and in order to make the protective rope 14 and the conveying pipeline 5 fully fit, the protective rope 14 is passed through the corresponding two through holes in the two gathering ring sleeves 13, so that the protective rope 14 and the conveying pipeline 5 are sufficiently close, and the conveying pipeline 5 is passed through the middle of the gathering ring sleeve 13, and the conveying pipeline 5 can also be fixed through the gathering ring sleeve 13; The winding structure includes a rotating shaft 15 and a first drive motor 17. The rotating shaft 15 is rotatably connected in the fixed frame 9. A plurality of winding cylinders 16 are fixedly sleeved on the rotating shaft 15. The protective rope 14 is wound on the corresponding winding cylinders 16. A first drive motor 17 is arranged in the fixed frame 9. The output end of the first drive motor 17 is fixedly connected to the rotating shaft 15. When the protective rope 14 needs to be unwound, the first drive motor 17 is started to drive the rotating shaft 15 to rotate, so that the rotating shaft 15 drives the plurality of winding cylinders 16 to rotate to unwound or reel in the protective rope 14.

[0023] A bending adjustment mechanism 300 is arranged between the mobile self-propelled equipment 7 and the conveying cylinder 3, and the bending adjustment mechanism 300 includes a moving frame 18, an arc plate 21 and a hook member 22. A plurality of self-locking universal wheels 19 are arranged at the bottom of the moving frame 18, and a limiting ring sleeve 20 is fixedly connected inside the moving frame 18. The protective rope 14 and the conveying pipeline 5 both pass through the limiting ring sleeve 20. The number of the arc plates 21 is set to two, and the two arc plates 21 are respectively slidably arranged on both sides of the moving frame 18. A lateral moving structure is arranged between the arc plate 21 and the moving frame 18. A plurality of hook members 22 are arranged on the mobile self-propelled equipment 7, and the hook members 22 cooperate with the bottom of the moving frame 18. When the conveying pipeline 5 needs to be bent underground in a coal mine, in order to keep sufficient mobile stretchability of the conveying pipeline 5 after bending, Move the arc plate 21 to the corner of the coal mine, and then make the conveying pipeline 5 and the multiple protection ropes 14 contact the arc surface of the arc plate 21 during the bending process, so that the conveying pipeline 5 and the protection ropes 14 can be bent smoothly, and a limiting ring 20 is also provided in the mobile frame 18, so that the conveying pipeline 5 and the protection ropes 14 can also maintain sufficient bending tension when turning along the arc plate 21, and an annular protrusion is provided at the bottom of the mobile frame 18, so that the hook member 22 is meshed with the annular protrusion, and after the mobile frame 18 is driven by the mobile self-propelled device 7 to move to the specified position, the self-locking property of the self-locking universal wheel 19 is used to keep the mobile frame 18 fixed, and then the meshing effect between the hook member 22 and the mobile frame 18 is released; The lateral movement structure includes a transmission gear 23 and an internal tooth groove 25. A rotating shaft 24 is rotatably connected in the mobile frame 18. The transmission gear 23 is fixedly sleeved on the rotating shaft 24. An internal tooth groove 25 is provided on the side of the arc plate 21 close to the transmission gear 23. The internal tooth groove 25 is meshed with the transmission gear 23. When it is necessary to drive the arc plate 21 to move horizontally in the mobile frame 18, the rotating shaft 24 is rotated to drive the transmission gear 23 to rotate. Through the meshing relationship between the transmission gear 23 and the internal tooth groove 25, the arc plate 21 is driven to move horizontally in the mobile frame 18, so that the arc area of ​​the arc plate 21 moves to the turning point in the coal mine.

[0024] It also includes a rotating frame 26 and a rotating cylinder 27. The rotating frame 26 is fixedly connected to one end of the conveying cylinder 3 close to the material conveying pipe 4. The rotating cylinder 27 is rotatably connected in the rotating frame 26. A second drive motor 28 is arranged on the rotating frame 26. The output end of the second drive motor 28 is fixedly connected to the rotating cylinder 27. A plurality of knocking seats 29 are fixedly connected to the rotating cylinder 27. After the powdered curing agent enters the material conveying pipe 4, the second drive motor 28 is started to drive the rotating cylinder 27 to rotate in the rotating frame 26, so that the plurality of knocking seats 29 knock on the bottom of the material conveying pipe 4, so that the powdered curing agent in the material conveying pipe 4 can smoothly enter the conveying cylinder 3.

[0025] The invention also includes a connecting socket 30, a plurality of connecting sockets 30 are connected to the delivery pipeline 5, one end of the connecting socket 30 close to the delivery pipeline 5 is inclined toward the direction of the mixer 6, and a closing valve is arranged on the connecting socket 30. The connecting socket 30 also includes a sliding cylinder 31 and a curved gas-filling pipe 35. The sliding cylinder 31 is fixedly connected to the fixed frame 9, an inflatable cylinder 32 is slidably arranged in the sliding cylinder 31, a spring damper 33 is arranged between the inflatable cylinder 32 and the inner top wall of the sliding cylinder 31, and an inflatable pipe 34 is connected to the top of the inflatable cylinder 32. The bottom of the gas cylinder body 32 is connected with a curved gas-filling pipe 35, and a seal is arranged between the curved gas-filling pipe 35 and the connecting socket 30. The seal includes a threaded sleeve 36. The bottom of the curved gas-filling pipe 35 is rotatably connected with the threaded sleeve 36. The end of the connecting socket 30 away from the conveying pipeline 5 is provided with a threaded section, and the threaded sleeve 36 is threadedly connected with the threaded section. Due to the influence of the terrain environment of the coal mine underground, it is sometimes inconvenient to move the storage tank 2 to a position close to the filling point. At this time, a longer conveying pipeline 5 is needed to convey the powdered curing agent. After the conveying pipeline 5 is moved, one of the connecting sockets 30 is moved to the bottom of the curved gas-filling pipe 35, and the inflatable cylinder 32 is pulled to slide in the sliding cylinder 31 to stretch the spring damper 33. After the threaded sleeve 36 contacts the threaded section on the connecting socket 30, the threaded sleeve 36 is rotated to be threadedly connected with the threaded section, so that the bottom of the curved gas-filling pipe gradually enters the connecting socket 30 and remains sealed. Then, gas is added to the inflatable cylinder 32 and the curved gas-filling pipe 35 through the inflatable pipe 34, and the closing valve is opened to allow the gas to enter the conveying pipeline through the connecting socket 30. The gas entering the conveying pipeline assists the conveying of the powdered curing agent in the conveying pipeline, and because the connecting socket 30 and the conveying pipeline are connected at a certain inclination angle, the gas entering the conveying pipeline 5 through the connecting socket 30 will only improve the conveying effect of the powdered curing agent.

[0026] The working principle of the device for adding a curing agent for gangue in coal mines: First, select a conveying pipeline 5 of suitable length, connect one end of the conveying pipeline 5 with the mixer 6, and the conveying pipeline 5 passes through the fixed ring sleeve 11, the connecting ring sleeve 12, the gathering ring sleeve 13 and the limiting ring sleeve 20 in sequence, and then the lifting frame 8 and the mobile frame 18 are driven by the mobile self-propelled device 7 to move along the specified path. During the movement of the mobile self-propelled device 7, the first drive motor 17 is started to drive the rotating shaft 15 to rotate, so that the rotating shaft 15 drives the multiple winding cylinders 16 to rotate to unwind the protective rope 14, so that the protective rope 14 is fully unwound between the fixed frame 9 and the conveying cylinder 3, and then the third drive motor 41 is started to drive the transmission screw 40 to rotate, so that the transmission screw 40 drives the lifting platform 10 and the mixer 6 to move longitudinally in the lifting frame 8, adjust the height of the mixer 6, and then connect the other side of the conveying pipeline 5 with the conveying cylinder 3; Then, the powdered curing agent in the storage tank 2 is discharged into the delivery pipe 4 through the spiral conveying structure, and the second driving motor 28 is started to drive the rotating cylinder 27 to rotate in the rotating frame 26, so that the multiple knocking seats 29 knock on the bottom of the delivery pipe 4, so that the powdered curing agent in the delivery pipe 4 can smoothly enter the conveying cylinder 3, and finally, gas is injected into the conveying cylinder 3 through the air supply pipe 42, so that the gas drives the powdered curing agent to be transported into the mixer 6, so that the gangue paste injected into the mixer 6 is mixed, and finally the mixed gangue paste is injected into the filling point through the mixer 6.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for adding a curing agent to gangue in underground coal mines, comprising a mobile base (1), a material storage tank (2) being arranged on the mobile base (1), and a spiral conveying structure being arranged at the bottom of the material storage tank (2), characterized in that: Also includes: A conveying cylinder (3), the conveying cylinder (3) being arranged on the spiral conveying structure, a material conveying pipe (4) being connected between the middle of the conveying cylinder (3) and the spiral conveying structure, and an end of the conveying cylinder (3) close to the movable base (1) being connected to an air supply pipe (42); A delivery pipeline (5), one side of the delivery pipeline (5) being connected to the delivery cylinder (3), and the other side of the delivery pipeline (5) being connected to a mixer (6); A mobile self-propelled device (7), wherein a lifting frame (8) is provided on the mobile self-propelled device (7), the mixer (6) is moved and arranged in the lifting frame (8) via a platform lifting assembly (100), a fixed frame (9) is fixedly connected to the mobile self-propelled device (7), and a rope protection mechanism (200) is provided between the fixed frame (9) and the conveying cylinder (3); A bending adjustment mechanism (300) is provided between the mobile self-propelled equipment (7) and the conveying cylinder (3).

2. The device for adding a curing agent for gangue in coal mines according to claim 1, characterized in that: The platform lifting assembly (100) comprises: A lifting platform (10), the lifting platform (10) being slidably connected to the lifting frame (8), and a lead screw lifting structure being provided between the lifting platform (10) and the lifting frame (8); A fixed ring sleeve (11), wherein a through opening is provided on the lifting platform (10), the fixed ring sleeve (11) is arranged in the through opening, one side of the conveying pipeline (5) passes through the fixed ring sleeve (11), and the outer wall of the conveying pipeline (5) is in contact with the inner wall of the fixed ring sleeve (11).

3. The device for adding a curing agent for underground coal mine gangue according to claim 2, characterized in that: The rope protection mechanism (200) comprises: A connecting ring sleeve (12), wherein the connecting ring sleeve (12) is fixedly connected to the conveying cylinder (3); A gathering ring sleeve (13), the gathering ring sleeve (13) being fixedly connected inside the fixed frame (9) and on the conveying cylinder (3), and the gathering ring sleeve (13) being provided with a plurality of through holes; A protective rope (14), wherein the number of the protective ropes (14) is set to be plural, the protective rope (14) passes through the corresponding two through holes, and one end of the protective rope (14) is fixedly connected to the connecting ring sleeve (12); A reeling structure is provided on both sides of the interior of the fixed frame (9), and the protective rope (14) located on the same side is reeled and arranged on the corresponding reeling structure.

4. The device for adding a curing agent for gangue in coal mines according to claim 3, characterized in that: The winding structure comprises: a rotating shaft (15), the rotating shaft (15) being rotatably connected in the fixed frame (9), a plurality of winding cylinders (16) being fixedly sleeved on the rotating shaft (15), and the protective rope (14) being wound on corresponding winding cylinders (16); A first drive motor (17), wherein the fixed frame (9) is provided with the first drive motor (17), and an output end of the first drive motor (17) is fixedly connected to the rotating shaft (15).

5. The device for adding a curing agent for gangue in coal mines according to claim 4, characterized in that: The bending adjustment mechanism (300) comprises: A mobile frame (18), wherein a plurality of self-locking universal wheels (19) are arranged at the bottom of the mobile frame (18), a limiting ring sleeve (20) is fixedly connected inside the mobile frame (18), and the protective rope (14) and the conveying pipeline (5) both pass through the limiting ring sleeve (20); An arc-shaped plate (21), wherein the number of the arc-shaped plates (21) is set to two, the two arc-shaped plates (21) are respectively slidably arranged on both sides of the movable frame (18), and a transverse movable structure is arranged between the arc-shaped plate (21) and the movable frame (18); A hook member (22), wherein the mobile self-propelled equipment (7) is provided with a plurality of hook members (22), and the hook members (22) cooperate with the bottom of the mobile frame (18).

6. The device for adding a curing agent for gangue in coal mines according to claim 5, characterized in that: The lateral movement structure comprises: A transmission gear (23), the movable frame (18) being rotatably connected to a rotating shaft (24), the transmission gear (23) being fixedly sleeved on the rotating shaft (24); An internal tooth groove (25) is provided on a side of the arc-shaped plate (21) close to the transmission gear (23), and the internal tooth groove (25) is meshed with the transmission gear (23).

7. The device for adding a curing agent for underground coal mine gangue according to claim 6, characterized in that: Also includes: A rotating frame (26), the rotating frame (26) being fixedly connected to one end of the conveying cylinder (3) close to the material conveying pipe (4); A rotating cylinder (27) is rotatably connected to the rotating frame (26), a second drive motor (28) is provided on the rotating frame (26), an output end of the second drive motor (28) is fixedly connected to the rotating cylinder (27), and a plurality of striking seats (29) are fixedly connected to the rotating cylinder (27).

8. The device for adding a curing agent for gangue in coal mines according to claim 7, characterized in that: Also includes: A connecting socket (30), wherein a plurality of the connecting sockets (30) are connected to the delivery pipeline (5), one end of the connecting socket (30) close to the delivery pipeline (5) is inclined in the direction of the mixer (6), and a closing valve is provided on the connecting socket (30).

9. The device for adding a curing agent for gangue in coal mines according to claim 8, characterized in that: Also includes: A sliding cylinder (31), the sliding cylinder (31) being fixedly connected to the fixed frame (9), an inflatable cylinder (32) being slidably disposed in the sliding cylinder (31), a spring damper (33) being disposed between the inflatable cylinder (32) and an inner top wall of the sliding cylinder (31), and an inflatable tube (34) being connected to the top of the inflatable cylinder (32); A curved air filling pipe (35) is connected to the bottom of the inflation cylinder (32), and a sealing member is provided between the curved air filling pipe (35) and the communication socket (30).

10. The device for adding a curing agent for gangue in coal mines according to claim 9, characterized in that: The sealing element comprises: A threaded sleeve (36) is rotatably connected to the bottom of the curved gas filling pipe (35); a threaded section is provided at one end of the connecting socket (30) away from the conveying pipeline (5); and the threaded sleeve (36) is threadedly connected to the threaded section.

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