Coal mine cemented filling device and method for arranging coal gangue aggregate

Abstract

The present application relates to coal mine cemented filling technical field, specifically is a kind of coal mine cemented filling device and method of coal gangue aggregate arrangement, the present application includes bottom plate, the bottom surface of bottom plate is equipped with moving mechanism, the top surface of bottom plate is provided with transfer bin, and transfer bin is connected with material conveying pipe;The front end of bottom plate is hinged with leakage prevention plate, and air cylinder one is installed between the top surface of leakage prevention plate and bottom plate, the top end of leakage prevention plate is slidably installed with telescopic plate, the outer side of telescopic plate is provided with discharge mechanism at the position close to its top end, and first conduit is connected between discharge mechanism and transfer bin;Material pipe length adjusting assembly is arranged in transfer bin;The present application does not need staff to transport filling material to the goaf needing filling in use process, improves filling work efficiency;The use state of filling material can be adjusted, and the practicability of the present application is improved.

Description

Technical Field

[0001] This invention relates to the field of cemented coal mine filling technology, specifically a cemented coal mine filling device and method for arranging coal gangue aggregate. Background Technology

[0002] Coal gangue is a solid waste discharged during coal mining and washing. It is a blackish-gray rock with low carbon content and harder than coal that is associated with coal seams during coal formation. In cemented backfilling mining, coal gangue is often crushed, and then the crushed coal gangue is mixed with cementing materials and water to make a filling aggregate slurry. The slurry is then pumped to the goaf for filling, thus realizing the utilization of coal gangue waste.

[0003] Existing technology includes a patent with application number CN202221697622.0, which provides a cemented backfilling device for mine tailings. The device includes a workbench with a mixing chamber at its upper end and a motor installed at its lower end. A rotating shaft is connected to the upper end of the motor. A mixing shaft is located in the center of the mixing chamber. Pulleys are fitted onto the outer sides of both the mixing shaft and the rotating shaft. A conveyor belt is fitted onto the outer sides of the pulleys. Two sets of first circular pipes and one set of second circular pipes are connected to the outer side of the mixing shaft via support rods. This device effectively and evenly mixes aggregates and cementitious agents, significantly improving the mixing effect. It also allows for the rapid solidification of the aggregates and cementitious agents by adding quicklime powder in real time, thus improving the manufacturing efficiency of the cemented backfill.

[0004] However, the above-mentioned device still has the following problems during use:

[0005] I. The above-mentioned device is used to prepare filling materials in the goaf. However, this method requires transporting raw materials (coal gangue, cementing materials and water mixture, etc.) to the goaf when preparing filling materials. The cross-section of the goaf is generally narrow, so the transportation of raw materials is difficult. Moreover, carrying out filling and preparation work in the narrow working environment at the same time will reduce the efficiency of filling work in the goaf.

[0006] Second, the filling material prepared by the above-mentioned device falls to the ground of the goaf or into an external device with a conveying function through the guide plate. The device lacks the function of actively filling the filling material, so workers still need to transport the filling material to the goaf that needs to be filled, which further reduces the efficiency of the filling work. Summary of the Invention

[0007] The purpose of this invention is to provide a coal mine cemented backfilling device for arranging coal gangue aggregate, so as to solve the problems mentioned in the background art.

[0008] The objective of this invention can be achieved through the following technical solutions:

[0009] A coal mine cemented backfilling device for arranging coal gangue aggregate includes a base plate, a moving mechanism installed on the bottom surface of the base plate, a transfer bin provided on the top surface of the base plate, and a conveying pipe connected to the transfer bin for conveying backfill material. The transfer bin is used to store backfill material introduced from the ground to the underground.

[0010] A leak-proof plate is hinged to the front end of the base plate. A cylinder is installed between the leak-proof plate and the top surface of the base plate. A telescopic plate is slidably installed on the top of the leak-proof plate. A discharge mechanism is provided on the outer side of the telescopic plate near its top. A first conduit is connected between the discharge mechanism and the transfer bin. The discharge mechanism is used to guide the filling material in the transfer bin to the goaf to be filled.

[0011] The transfer silo is equipped with a material pipe length adjustment component, which is used to adjust the working length of the material pipe by wrapping the material pipe around the perimeter of the transfer silo.

[0012] Furthermore, an L-shaped connecting rod is fixedly installed on the top surface of the base plate, and a reinforcing rod is fixedly connected between the two inner sides of the L-shaped connecting rod. An installation plate is fixedly installed at the end of the L-shaped connecting rod away from the base plate, and an electric telescopic rod is fixedly connected to the bottom surface of the installation plate.

[0013] Furthermore, the transfer chamber includes a rotating base fixedly installed on the top surface of the base plate, a storage bin, a cover, and a drive assembly for driving the storage bin to rotate on the top surface of the rotating base. The storage bin is fixedly installed on the top surface of the rotating base. The material pipe length adjustment assembly is sleeved around the storage bin. A connecting assembly is provided between the material pipe length adjustment assembly and the outer periphery of the storage bin. The connecting assembly is used to control the relative circumferential rotation state between the material pipe length adjustment assembly and the storage bin.

[0014] The cover is fixedly installed at the bottom end of the electric telescopic rod and is located directly above the storage bucket. A hollow tube is fixedly connected to the center of the bottom surface of the cover. Multiple stirring blades are fixedly connected to the periphery of the hollow tube. A concrete pump is fixedly installed on the top surface of the cover. A second conduit is fixedly connected to the inlet end of the concrete pump. The end of the second conduit away from the concrete pump passes through the outer side of the cover and the hollow tube in sequence, and the end of the second conduit away from the concrete pump extends to the bottom end of the hollow tube.

[0015] A feed pipe is fixedly installed through the top surface of the cover, and a water supply device is connected to the end of the feed pipe away from the cover.

[0016] Furthermore, the drive assembly includes a fixed base fixedly installed on the top surface of the base plate and a driven pulley fixedly installed at the bottom of the outer periphery of the storage bin. A motor is fixedly installed in the fixed base, and a drive pulley is fixedly installed at the output shaft end of the motor. A transmission belt connects the drive pulley and the driven pulley.

[0017] The driven pulley has multiple limiting holes on its top surface that cooperate with the connecting assembly. The multiple limiting holes are arranged in a circumferential array on the top surface of the driven pulley about the axis of the storage bucket.

[0018] Furthermore, the material tube length adjustment assembly includes a sleeve fitted around the outer periphery of the storage hopper. The sleeve is located above the driven pulley, the top of the sleeve is higher than the top of the storage hopper, and the top of the sleeve is located below the cover.

[0019] The sleeve has a circumferential groove, and a support ring located below the circumferential groove is fixedly connected to the outer periphery of the sleeve. The outer periphery of the sleeve is provided with a thread located below the support ring, and a limiting ring fixedly installed on the outer periphery of the sleeve is provided below the thread.

[0020] A second feeding pipe is provided at the upper outer periphery of the sleeve. The end of the second feeding pipe away from the sleeve is connected to the conveying pipe. The part of the conveying pipe away from the second feeding pipe is wrapped around and locked around the outer periphery of the sleeve through a circumferential groove.

[0021] Furthermore, the connecting assembly includes a lifting ring that is threadedly mounted on the periphery of the sleeve, and a plurality of handles for rotating the lifting ring are fixedly connected to the periphery of the lifting ring.

[0022] The bottom surface of the lifting ring is rotatably connected to a circular ring sleeved around the sleeve. Multiple insertion rods, equal in number to the number of limiting holes, are fixedly connected to the bottom surface of the circular ring. The insertion rods slide through the limiting ring, and the ends of the multiple insertion rods away from the circular ring are respectively slidably inserted into the multiple limiting holes.

[0023] Furthermore, two protruding rods are fixedly connected to one end of the base plate, and a connecting seat is fixedly installed at the end of the protruding rod away from the base plate. A connecting block is rotatably installed in the connecting seat, and the leak-proof plate is fixedly connected to the ends of the two connecting blocks away from the connecting seat.

[0024] The two ends of the cylinder are respectively hinged to the leak-proof plate and the base plate.

[0025] Furthermore, a protruding block is fixedly connected to the inner side of the leak-proof plate near its bottom end, and two sliding grooves are symmetrically opened on both sides of the inner side of the leak-proof plate.

[0026] Two slide rails are symmetrically installed on both sides of the outer side of the telescopic plate. The two slide rails are slidably installed in the two slide grooves respectively. An extension block two is fixedly connected to the bottom of the inner side of the telescopic plate. A cylinder two is fixedly connected between the extension block two and the extension block one.

[0027] Furthermore, the discharge mechanism includes a material distribution cylinder fixedly installed at the top of the outer side of the telescopic plate and a motor two fixedly installed on the inner side of the telescopic plate. Multiple discharge pipes arranged in an array along the length of the material distribution cylinder are fixedly connected to the outer side of the material distribution cylinder. A feed pipe one is fixedly connected to one end of the inner side of the material distribution cylinder. The first conduit is fixedly connected between the end of the feed pipe one away from the material distribution cylinder and the discharge end of the concrete pump.

[0028] A rotating shaft is rotatably installed between the two ends of the inner part of the dispensing cylinder. A spiral blade is fixedly installed on the outer periphery of the rotating shaft. The end of the rotating shaft near the second motor rotates through the dispensing cylinder, and a bevel gear is fixedly installed at the end of the rotating shaft near the second motor.

[0029] The output shaft of the second motor rotates through the telescopic plate, and the second bevel gear, which meshes with the first bevel gear, is fixedly installed at the end of the output shaft of the second motor.

[0030] A protective cover is fixedly installed between the end of the dispensing cylinder near the motor 2 and the outer side of the telescopic plate, covering the bevel gear 1 and bevel gear 2.

[0031] Another object of the present invention is to provide a filling method for a coal mine cemented backfilling device for arranging coal gangue aggregate, comprising the following steps:

[0032] S1: Move the device to the working position;

[0033] S2: Start cylinder one, which drives the leak-proof plate to rotate around the connecting seat as the axis, so that the bottom end of the leak-proof plate is pressed into contact with the ground of the goaf; start cylinder two, which drives the telescopic plate to rise, so that the telescopic plate and the leak-proof plate are cut off in the goaf to form a pre-fill area.

[0034] S3: The conveying pipe transfers the filler material on the ground to the storage bucket, and the concrete pump transfers the filler material in the storage bucket to the discharge mechanism, which then fills the pre-filled area with the filler material.

[0035] S4: After filling is completed, the moving device forms a pre-filling area. During the movement, the material pipe length adjustment component will change the working length of the material pipe by winding the material pipe, so that the material pipe adapts to the working position of the device.

[0036] The beneficial effects of this invention are:

[0037] 1. This invention uses a conveying pipe to transport the prepared filler material from the ground to the device for filling the goaf. Furthermore, the device has a pipe length adjustment component that allows for flexible adjustment of the working length of the conveying pipe, enabling rapid adjustment of the filling position. Compared with existing technologies, this invention solves the problem of reduced filling efficiency caused by real-time filling material manufacturing.

[0038] 2. During use, the invention starts cylinder one, which drives the leak-proof plate to rotate around the connecting seat as the axis, so that the bottom end of the leak-proof plate is pressed into contact with the ground of the goaf; cylinder two starts cylinder two, which drives the telescopic plate to rise, so that the telescopic plate and the leak-proof plate are cut off in the goaf to form a pre-filling area. The concrete pump delivers the filling material in the storage bucket to the center, and then the filling material in the center will be guided to the goaf to complete the active filling function. Compared with the prior art, the invention does not require workers to transport the filling material to the goaf to be filled, thus improving the efficiency of the filling work.

[0039] 3. After the filler material enters the storage hopper, motor one is started to drive the storage hopper to rotate, causing relative rotation between the storage hopper and the hollow tube. This allows multiple stirring blades to stir and mix the filler material in the storage hopper. Furthermore, the opening and closing of the cover can be controlled by a concrete pump, making it convenient for workers to observe the state of the filler material in the storage hopper. If the filler material is dry, water can be injected into the storage hopper through an external water supply device. Combined with the stirring function of the filler material in the storage hopper, the usage state of the filler material can be quickly adjusted. This setting improves the practicality of the invention. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the invention. Figure 1 ;

[0042] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the invention. Figure 2 ;

[0043] Figure 3 This is a three-dimensional structural diagram illustrating the connection relationship between the leak-proof plate and the telescopic plate in this invention. Figure 1 ;

[0044] Figure 4 This is a three-dimensional structural diagram illustrating the connection relationship between the leak-proof plate and the telescopic plate in this invention. Figure 2 ;

[0045] Figure 5 This is a three-dimensional structural diagram illustrating the connection relationship between the discharge mechanism and the telescopic plate in this invention;

[0046] Figure 6 This is a schematic diagram of the material discharge mechanism in this invention;

[0047] Figure 7 yes Figure 6 Enlarged view of section A;

[0048] Figure 8 This is a three-dimensional structural diagram of the transit warehouse in this invention. Figure 1 ;

[0049] Figure 9 This is a three-dimensional structural diagram of the transit warehouse in this invention. Figure 2 ;

[0050] Figure 10 yes Figure 9 Enlarged view of section B;

[0051] Figure 11 This is a three-dimensional structural diagram illustrating the connection relationship between the second conduit and the hollow tube in this invention;

[0052] Figure 12 This is a three-dimensional structural diagram of the cover body in this invention;

[0053] The attached figures are labeled as follows:

[0054] 1-Leak-proof plate, 2-Telescopic plate, 3-Discharge mechanism, 4-Infeed pipe one, 5-First guide tube, 6-L-shaped connecting rod, 7-Reinforcing rod, 8-Mounting plate, 9-Electric telescopic rod, 10-Cover, 11-Infeed pipe two, 12-Conveying pipe, 13-Sleeve, 14-Driven pulley, 15-Rotating base, 16-Base plate, 17-Moving mechanism, 18-Transmission belt, 19-Driven pulley, 20-Fixed seat, 21-Motor one, 22-Extending rod, 23-Connecting seat, 24-Cylinder one, 25-Connecting block, 26-Slide groove, 27-Slide rail 28-Motor II, 29-Concrete Pump, 30-Extending Block I, 31-Cylinder II, 32-Extending Block II, 33-Distribution Cylinder, 34-Discharge Pipe, 35-Protective Cover, 36-Spiral Blade, 37-Rotating Shaft, 38-Bevel Gear I, 39-Bevel Gear II, 40-Storage Bucket, 41-Circular Groove, 42-Support Ring, 43-Thread, 44-Lifting Ring, 45-Handle, 46-Limiting Ring, 47-Insertion Rod, 48-Ring, 49-Limiting Hole, 50-Second Guide Pipe, 51-Hollow Pipe, 52-Mixing Blade, 53-Infeed Pipe III. Detailed Implementation

[0055] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0056] Example 1:

[0057] Please see Figures 1-4 and, Figure 8 , Figure 9 , Figure 11 and Figure 12 In this embodiment of the invention, a coal mine cemented filling device for arranging coal gangue aggregate includes a base plate 16, a moving mechanism 17 installed on the bottom surface of the base plate 16, a transfer chamber provided on the top surface of the base plate 16, and a conveying pipe 12 connected to the transfer chamber for conveying filling material. The transfer chamber is used to store filling material introduced from the ground to the underground.

[0058] A leak-proof plate 1 is hinged to the front end of the base plate 16. A cylinder 24 is installed between the leak-proof plate 1 and the top surface of the base plate 16. A telescopic plate 2 is slidably installed on the top of the leak-proof plate 1. A discharge mechanism 3 is provided on the outer side of the telescopic plate 2 near its top. A first conduit 5 is connected between the discharge mechanism 3 and the transfer bin. The discharge mechanism 3 is used to guide the filling material in the transfer bin to the goaf to be filled.

[0059] The transfer chamber is equipped with a material pipe length adjustment component, which is used to adjust the working length of the material pipe 12 by wrapping the material pipe 12 around the outside of the transfer chamber.

[0060] like Figure 1 and Figure 2 As shown, an L-shaped connecting rod 6 is fixedly installed on the top surface of the base plate 16, and a reinforcing rod 7 is fixedly connected between the two inner sides of the L-shaped connecting rod 6. An mounting plate 8 is fixedly installed at the end of the L-shaped connecting rod 6 away from the base plate 16, and an electric telescopic rod 9 is fixedly connected to the bottom surface of the mounting plate 8.

[0061] like Figure 1 , Figure 2 , Figure 8 , Figure 9 , Figure 11 and Figure 12As shown, the transfer bin includes a rotating base 15 fixedly installed on the top surface of the base plate 16, a storage bin 40, a cover 10, and a drive assembly for driving the storage bin 40 to rotate on the top surface of the rotating base 15. The storage bin 40 is fixedly installed on the top surface of the rotating base 15. The material pipe length adjustment assembly is sleeved on the outer periphery of the storage bin 40. A connecting assembly is provided between the material pipe length adjustment assembly and the outer periphery of the storage bin 40. The connecting assembly is used to control the relative circumferential rotation state between the material pipe length adjustment assembly and the storage bin 40.

[0062] The cover 10 is fixedly installed at the bottom end of the electric telescopic rod 9, and the cover 10 is located directly above the storage bucket 40. A hollow tube 51 is fixedly connected to the center of the bottom surface of the cover 10. Multiple stirring blades 52 are fixedly connected to the periphery of the hollow tube 51. A concrete pump 29 is fixedly installed on the top surface of the cover 10. A second conduit 50 is fixedly connected to the inlet end of the concrete pump 29. The end of the second conduit 50 away from the concrete pump 29 passes through the outer side of the cover 10 and the hollow tube 51 in sequence. The end of the second conduit 50 away from the concrete pump 29 extends to the bottom end of the hollow tube 51.

[0063] A feed pipe 3 53 is fixedly installed through the top surface of the cover 10. A water supply device is connected to the end of the feed pipe 3 53 away from the cover 10. By adding a feed pipe 3 53 to the top surface of the cover 10, it is convenient to adjust the usage status of the filling material in the storage bucket 40, thus improving the practicality of the device.

[0064] like Figure 1 and Figure 2 As shown, the drive assembly includes a fixed base 20 fixedly installed on the top surface of the base plate 16 and a driven pulley 14 fixedly installed at the bottom of the outer periphery of the storage bin 40. A motor 21 is fixedly installed in the fixed base 20. A drive pulley 19 is fixedly installed at the output shaft end of the motor 21. A transmission belt 18 connects the drive pulley 19 and the driven pulley 14.

[0065] The driven pulley 14 has multiple limiting holes 49 on its top surface that cooperate with the connecting components. The multiple limiting holes 49 are arranged in a circumferential array on the top surface of the driven pulley 14 about the axis of the storage bin 40. In the drive assembly, the motor 21 drives the driving pulley 19 to rotate, and the driving pulley 19 drives the storage bin 40 to rotate on the rotating base 15 through the transmission belt 18 and the driven pulley 14.

[0066] like Figure 8 and Figure 9 As shown, the material tube length adjustment assembly includes a sleeve 13 sleeved around the storage hopper 40. The sleeve 13 is located above the driven pulley 14, the top of the sleeve 13 is higher than the top of the storage hopper 40, and the top of the sleeve 13 is located below the cover 10.

[0067] A circumferential groove 41 is provided on the outer periphery of the sleeve 13. A support ring 42 located below the circumferential groove 41 is fixedly connected to the outer periphery of the sleeve 13. A thread 43 located below the support ring 42 is provided on the outer periphery of the sleeve 13. A limiting ring 46 fixedly installed on the outer periphery of the sleeve 13 is provided below the thread 43.

[0068] A feeding pipe 2 11 is provided at the upper part of the outer periphery of the sleeve 13. The end of the feeding pipe 2 11 away from the sleeve 13 is connected to a conveying pipe 12. The part of the conveying pipe 12 away from the feeding pipe 2 11 is wrapped around and locked around the outer periphery of the sleeve 13 through the surrounding groove 41.

[0069] like Figure 1 and Figure 2 As shown, two protruding rods 22 are fixedly connected to one end of the base plate 16. A connecting seat 23 is fixedly installed at the end of the protruding rod 22 away from the base plate 16. A connecting block 25 is rotatably installed in the connecting seat 23. A leak-proof plate 1 is fixedly connected to the ends of the two connecting blocks 25 away from the connecting seat 23.

[0070] The two ends of cylinder 24 are hinged to the leak-proof plate 1 and the base plate 16, respectively.

[0071] Leakage prevention plate 1 is used to block the leakage of filler material, so that the filler material can be stably solidified in the goaf. Cylinder 24 can drive the leakage prevention plate 1 to rotate. When the device is moving, cylinder 24 drives the leakage prevention plate 1 to rotate until the bottom surface of the leakage prevention plate 1 is separated from the ground of the goaf. After the device moves to the designated working position, cylinder 24 drives the leakage prevention plate 1 to rotate until the bottom surface of the leakage prevention plate 1 is pressed and contacted with the ground of the goaf.

[0072] like Figure 4 As shown, a protruding block 30 is fixedly connected to the inner side of the leak-proof plate 1 near its bottom end, and two strip grooves 26 are symmetrically opened on both sides of the inner side of the leak-proof plate 1.

[0073] Two slide rails 27 are symmetrically installed on both sides of the outer surface of the telescopic plate 2. The two slide rails 27 are slidably installed in two slide grooves 26 respectively. An extension block 2 32 is fixedly connected to the bottom of the inner side of the telescopic plate 2. A cylinder 2 31 is fixedly connected between the extension block 2 32 and the extension block 1 30. The cylinder 2 31 is used to drive the telescopic plate 2 to rise and fall. The rising and falling of the telescopic plate 2 depends on the height of the goaf. By setting the telescopic plate 2, the present invention can be applied to goafs of different heights, thus improving the practicality of the present invention.

[0074] Coal gangue is a solid waste generated during coal mining and washing processes; it is utilized in cemented backfilling mining. Existing technologies, such as the patent application number CN202221697622.0, provide a cemented backfilling device for mine tailings that effectively and uniformly mixes aggregates and binders, significantly improving the mixing effect. Furthermore, it allows for rapid solidification by adding quicklime powder in real-time, thereby improving the manufacturing efficiency of the cemented backfill.

[0075] However, the above-mentioned device still has the following problems during use:

[0076] I. The above-mentioned device is used to prepare filling materials in the goaf. However, this method requires transporting raw materials (coal gangue, cementing materials and water mixture, etc.) to the goaf when preparing filling materials. The cross-section of the goaf is generally narrow, so the transportation of raw materials is difficult. Moreover, carrying out filling and preparation work in the narrow working environment at the same time will reduce the efficiency of filling work in the goaf.

[0077] Second, the filling material prepared by the above-mentioned device falls to the ground of the goaf or into an external device with a conveying function through the guide plate. The device lacks the function of actively filling the filling material, so workers still need to transport the filling material to the goaf that needs to be filled, which further reduces the efficiency of the filling work.

[0078] In this invention:

[0079] The invention employs a method of conveying prepared filler material from the ground to the device via a conveying pipe 12 to perform filling work on the goaf. Furthermore, the invention features a pipe length adjustment component that allows for flexible adjustment of the working length of the conveying pipe 12, enabling rapid adjustment of the filling position of the device. Compared with existing technologies, this invention solves the problem of reduced filling efficiency caused by real-time filling material manufacturing.

[0080] After the filler material enters the storage hopper 40, the motor 21 is started to drive the storage hopper 40 to rotate, causing relative rotation between the storage hopper 40 and the hollow tube 51. The multiple stirring blades 52 then have the function of stirring and mixing the filler material in the storage hopper 40. The concrete pump 29 can control the opening and closing of the cover 10, making it convenient for the staff to observe the state of the filler material in the storage hopper 40. When the filler material is dry, water can be injected into the storage hopper 40 through an external water supply device. Combined with the stirring function of the filler material in the storage hopper 40, the usage state of the filler material can be quickly adjusted. This setting improves the practicality of the invention.

[0081] When it is necessary to adjust the length of the feed pipe 12, the connecting component makes the sleeve 13 and the storage bucket 40 rotate synchronously. That is, the drive component will drive the sleeve 13 and the storage bucket 40 to rotate at the same time. The rotation of the sleeve 13 will change the clamping length of the feed pipe 12 on the outside of the sleeve 13, thereby realizing the function of quickly adjusting the working length of the feed pipe 12.

[0082] During use, the invention activates cylinder 24, causing the leak-proof plate 1 to rotate around the connecting seat 23, making the bottom of the leak-proof plate 1 press against the ground in the goaf. Then, cylinder 31 activates the telescopic plate 2, causing the telescopic plate 2 and the leak-proof plate 1 to be cut off in the goaf to form a pre-filled area. Concrete pump 29 transfers the filler material from storage bucket 40 to 3, and then the filler material in 3 is guided to the goaf to complete the active filling function. Compared with the prior art, this invention eliminates the need for workers to transport the filler material to the goaf to be filled, thus improving the efficiency of the filling work.

[0083] Example 2:

[0084] Please see Figure 9 and Figure 10 Based on embodiment 1, the connecting assembly includes a lifting ring 44 that is threaded onto the periphery of the sleeve 13 via a thread 43, and a plurality of handles 45 for rotating the lifting ring 44 are fixedly connected to the periphery of the lifting ring 44.

[0085] The bottom surface of the lifting ring 44 is rotatably connected to a ring 48 sleeved around the sleeve 13. Multiple insertion rods 47, equal in number to the number of limiting holes 49, are fixedly connected to the bottom surface of the ring 48. The insertion rods 47 slide through the limiting ring 46, and the ends of the multiple insertion rods 47 away from the ring 48 are respectively slidably inserted into the multiple limiting holes 49.

[0086] When it is necessary for the sleeve 13 and the storage bucket 40 to rotate synchronously, the lifting ring 44 is rotated by the handle 45, causing the lifting ring 44 to drive the ring 48 to descend. The ring 48 then drives multiple insertion rods 47 to descend, so that the bottom ends of the multiple insertion rods 47 are slidably inserted into the multiple limiting holes 49, thereby making the sleeve 13 and the storage bucket 40 rotate synchronously. This connection state is suitable for use when the length of the conveying pipe 12 needs to be adjusted. Similarly, when it is necessary for the sleeve 13 and the storage bucket 40 to rotate asynchronously, the multiple insertion rods 47 are moved upward to a state where they are separated from the multiple limiting holes 49.

[0087] Example 3:

[0088] Please see Figures 1-7Based on embodiment 2, the discharge mechanism 3 includes a material distribution cylinder 33 fixedly installed at the top of the outer side of the telescopic plate 2 and a motor 28 fixedly installed on the inner side of the telescopic plate 2. Multiple discharge pipes 34 arranged in an array along the length direction of the material distribution cylinder 33 are fixedly connected to the outer side of the material distribution cylinder 33. A feed pipe 4 is fixedly connected to one end of the inner side of the material distribution cylinder 33. A first conduit 5 is fixedly connected between the end of the feed pipe 4 away from the material distribution cylinder 33 and the discharge end of the concrete pump 29.

[0089] A rotating shaft 37 is rotatably installed between the two ends inside the dispensing cylinder 33. A spiral blade 36 is fixedly installed on the outer periphery of the rotating shaft 37. The end of the rotating shaft 37 near the second motor 28 rotates through the dispensing cylinder 33, and a bevel gear 38 is fixedly installed on the end of the rotating shaft 37 near the second motor 28.

[0090] The output shaft of motor 28 rotates through the telescopic plate 2, and a bevel gear 39 that meshes with bevel gear 38 is fixedly installed at the end of the output shaft of motor 28.

[0091] A protective cover 35, which surrounds the bevel gear 1 38 and bevel gear 2 39, is fixedly installed between the end of the dispensing cylinder 33 near the motor 28 and the outer side of the telescopic plate 2.

[0092] Motor 28 drives shaft 37 to rotate via bevel gear 2 39 and bevel gear 1 38. Shaft 37 drives spiral blade 36 to rotate. The rotation of spiral blade 36 guides the filler material entering the distribution cylinder 33 through feed pipe 1 4 to each discharge pipe 34 evenly, so that the filler material is evenly guided from the distribution cylinder 33 to the goaf area.

[0093] Example 4:

[0094] Please see Figures 1-12 Based on Example 3, this example provides a filling method for a coal mine cemented backfilling device with coal gangue aggregate, including the following steps:

[0095] S1: Move the device to the working position;

[0096] S2: Start cylinder 24, which drives the leak-proof plate 1 to rotate around the connecting seat 23 as the axis, so that the bottom end of the leak-proof plate 1 is pressed into contact with the ground of the goaf; start cylinder 31, which drives the telescopic plate 2 to rise, so that the telescopic plate 2 and the leak-proof plate 1 are cut off in the goaf to form a pre-fill area.

[0097] S3: The material conveying pipe 12 conveys the filler material on the ground to the storage bucket 40, and the concrete pump 29 conveys the filler material in the storage bucket 40 to the discharge mechanism 3. The discharge mechanism 3 fills the pre-filling area with the filler material.

[0098] S4: After filling is completed, the moving device forms a pre-filling area. During the movement, the material pipe length adjustment component will change the working length of the material pipe 12 by winding the material pipe 12, so that the material pipe 12 adapts to the working position of the device.

[0099] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A coal mine cemented filling device for arranging coal gangue aggregate, comprising a base plate (16), wherein a moving mechanism (17) is installed on the bottom surface of the base plate (16), characterized in that, The top surface of the base plate (16) is provided with a transfer chamber, which is connected to a conveying pipe (12) for conveying filler material. The transfer chamber is used to store filler material introduced from the ground to the ground. A leak-proof plate (1) is hinged to the front end of the base plate (16). A cylinder (24) is installed between the leak-proof plate (1) and the top surface of the base plate (16). A telescopic plate (2) is slidably installed on the top of the leak-proof plate (1). A discharge mechanism (3) is provided on the outer side of the telescopic plate (2) near its top. A first conduit (5) is connected between the discharge mechanism (3) and the transfer bin. The discharge mechanism (3) is used to guide the filling material in the transfer bin to the goaf to be filled. The transfer silo is equipped with a material pipe length adjustment component, which is used to adjust the working length of the material pipe (12) by wrapping the material pipe (12) around the periphery of the transfer silo. The transfer chamber includes a rotating base (15) fixedly installed on the top surface of the base plate (16), a storage bin (40), a cover (10), and a drive assembly for driving the storage bin (40) to rotate on the top surface of the rotating base (15). The storage bin (40) is fixedly installed on the top surface of the rotating base (15). The material pipe length adjustment assembly is sleeved on the periphery of the storage bin (40). A connecting assembly is provided between the material pipe length adjustment assembly and the periphery of the storage bin (40). The connecting assembly is used to control the relative circumferential rotation state between the material pipe length adjustment assembly and the storage bin (40). The top surface of the cover (10) is fixedly and through-installed with a feed pipe three (53), and a water supply device is connected to the end of the feed pipe three (53) away from the cover (10). The drive assembly includes a fixed base (20) fixedly installed on the top surface of the base plate (16) and a driven pulley (14) fixedly installed at the bottom periphery of the storage bin (40). A motor (21) is fixedly installed in the fixed base (20). A drive pulley (19) is fixedly installed at the output shaft end of the motor (21). A transmission belt (18) connects the drive pulley (19) and the driven pulley (14). The driven pulley (14) has a plurality of limiting holes (49) on its top surface that cooperate with the connecting assembly. The plurality of limiting holes (49) are arranged in a circumferential array on the top surface of the driven pulley (14) about the axis of the storage bucket (40). The material tube length adjustment assembly includes a sleeve (13) sleeved around the storage hopper (40). The sleeve (13) is located above the driven pulley (14), the top of the sleeve (13) is higher than the top of the storage hopper (40), and the top of the sleeve (13) is located below the cover (10). The sleeve (13) has a surrounding groove (41) on its periphery. A support ring (42) located below the surrounding groove (41) is fixedly connected to the periphery of the sleeve (13). A thread (43) located below the support ring (42) is provided on the periphery of the sleeve (13). A limiting ring (46) fixedly installed on the periphery of the sleeve (13) is provided below the thread (43). A feeding pipe 2 (11) is provided at the upper position of the outer periphery of the sleeve (13). The end of the feeding pipe 2 (11) away from the sleeve (13) is connected to the conveying pipe (12). The part of the conveying pipe (12) away from the feeding pipe 2 (11) is wrapped around the outer periphery of the sleeve (13) through the surrounding groove (41). The connecting assembly includes a lifting ring (44) threaded onto the periphery of the sleeve (13) via a thread (43), and a plurality of handles (45) for rotating the lifting ring (44) are fixedly connected to the periphery of the lifting ring (44). The bottom surface of the lifting ring (44) is rotatably connected to a ring (48) sleeved around the sleeve (13). The bottom surface of the ring (48) is fixedly connected to a plurality of insert rods (47) equal in number to the plurality of limiting holes (49). The insert rods (47) slide through the limiting ring (46), and the ends of the plurality of insert rods (47) away from the ring (48) are respectively slidably inserted into the plurality of limiting holes (49).

2. The coal mine cemented filling device for arranging coal gangue aggregate according to claim 1, characterized in that, An L-shaped connecting rod (6) is fixedly installed on the top surface of the base plate (16), and a reinforcing rod (7) is fixedly connected between the two inner sides of the L-shaped connecting rod (6). An mounting plate (8) is fixedly installed on the end of the L-shaped connecting rod (6) away from the base plate (16), and an electric telescopic rod (9) is fixedly connected to the bottom surface of the mounting plate (8). The cover (10) is fixedly installed at the bottom end of the electric telescopic rod (9), and the cover (10) is located directly above the storage bucket (40). A hollow tube (51) is fixedly connected to the center of the bottom surface of the cover (10). Multiple stirring blades (52) are fixedly connected to the periphery of the hollow tube (51). A concrete pump (29) is fixedly installed on the top surface of the cover (10). A second conduit (50) is fixedly connected to the inlet end of the concrete pump (29). The end of the second conduit (50) away from the concrete pump (29) passes through the outer side of the cover (10) and the hollow tube (51) in sequence. The end of the second conduit (50) away from the concrete pump (29) extends to the bottom end of the hollow tube (51).

3. A coal mine cemented filling device for arranging coal gangue aggregate according to claim 2, characterized in that, Two extension rods (22) are fixedly connected to one end of the base plate (16). A connecting seat (23) is fixedly installed at the end of the extension rod (22) away from the base plate (16). A connecting block (25) is rotatably installed in the connecting seat (23). The leak-proof plate (1) is fixedly connected to the ends of the two connecting blocks (25) away from the connecting seat (23). The two ends of the cylinder (24) are hinged to the leak-proof plate (1) and the base plate (16), respectively.

4. A coal mine cemented filling device for arranging coal gangue aggregate according to claim 3, characterized in that, On the inner side of the leak-proof plate (1), a protruding block (30) is fixedly connected near its bottom end, and two sliding grooves (26) are symmetrically opened on both sides of the inner side of the leak-proof plate (1). Two slide rails (27) are symmetrically installed on both sides of the outer side of the telescopic plate (2). The two slide rails (27) are slidably installed in the two slide grooves (26). An extension block two (32) is fixedly connected to the bottom of the inner side of the telescopic plate (2). A cylinder two (31) is fixedly connected between the extension block two (32) and the extension block one (30).

5. A coal mine cemented filling device for arranging coal gangue aggregate according to claim 4, characterized in that, The discharge mechanism (3) includes a material distribution cylinder (33) fixedly installed at the top of the outer side of the telescopic plate (2) and a motor (28) fixedly installed on the inner side of the telescopic plate (2). Multiple discharge pipes (34) are fixedly connected to the outer side of the material distribution cylinder (33) and are arranged in an array along the length direction of the material distribution cylinder (33). A feed pipe (4) is fixedly connected to one end of the inner side of the material distribution cylinder (33). The first conduit (5) is fixedly connected between the end of the feed pipe (4) away from the material distribution cylinder (33) and the discharge end of the concrete pump (29). A rotating shaft (37) is rotatably installed between the two ends of the inner part of the dispensing cylinder (33). A spiral blade (36) is fixedly installed on the outer periphery of the rotating shaft (37). The rotating shaft (37) rotates through the dispensing cylinder (33) at one end near the second motor (28), and a bevel gear (38) is fixedly installed at the other end of the rotating shaft (37) near the second motor (28). The output shaft of the second motor (28) rotates through the telescopic plate (2), and the output shaft end of the second motor (28) is fixedly installed with a bevel gear (39) that meshes with the first bevel gear (38). A protective cover (35) is fixedly installed between the end of the dispensing cylinder (33) near the motor (28) and the outer side of the telescopic plate (2), which is wrapped around the bevel gear (38) and bevel gear (39).

6. The filling method of a coal mine cemented backfilling device for arranging coal gangue aggregate according to claim 5, characterized in that, The filling method includes the following steps: S1: Move the device to the working position; S2: Start cylinder one (24) to drive the leak-proof plate (1) to rotate around the connecting seat (23) as the axis, so that the bottom end of the leak-proof plate (1) is pressed into contact with the ground of the goaf; start cylinder two (31) to drive the telescopic plate (2) to rise, so that the telescopic plate (2) and the leak-proof plate (1) are cut off in the goaf to form a pre-filled area; S3: The conveying pipe (12) delivers the filler material on the ground to the storage bucket (40), and the concrete pump (29) delivers the filler material in the storage bucket (40) to the discharge mechanism (3), and the discharge mechanism (3) fills the pre-filled area with the filler material; S4: After filling is completed, the moving device forms a new pre-filling area. During the movement, the material pipe length adjustment component will change the working length of the material pipe (12) by winding the material pipe (12) so that the material pipe (12) adapts to the working position of the device.

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