Mine sump desilting device

Abstract

The invention discloses a mine sump desilting device which comprises a machine body, a suction shovel used for sucking sludge is arranged on the machine body, the suction shovel comprises a reamer used for sucking external sludge and an auger used for conveying the sludge, the auger is connected with a conveying pipe, and a pulse airflow mechanism is arranged on the conveying pipe; an inclined mud guide plate is arranged on the mud facing side of the reamer, a pushing mechanism is arranged on the mud guide plate and comprises a moving plate, the moving plate is connected with a first power mechanism, the first power mechanism can drive the moving plate to do reciprocating motion close to or away from the reamer along the mud guide plate, and a shifting piece is hinged to the moving plate; when the first power mechanism drives the moving plate to move towards the reamer, the shifting piece and the moving plate are in an open state; when the first power mechanism drives the moving plate to move in the direction away from the reamer, the shifting piece and the moving plate are in a folded state. Sludge clamping stagnation is effectively avoided, the working load is stabilized, the dredging efficiency and the equipment reliability are improved, and the service life is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of dredging, and specifically to a device for dredging a mine sump. Background Art

[0002] With the increasing exploitation of mineral resources, the mining depth and scope of mines such as coal mines are constantly increasing. During the mining process of mines, underground water inrush is a common phenomenon, which needs to be discharged in time through a drainage system. Mine water inrush usually carries solid particulate matters such as coal slag, rock debris, and sediment. These substances will deposit in the mine sump (catch basin) to form silt, seriously affecting the effective volume of the sump and the normal operation of drainage equipment. The long-term accumulation of silt will not only block drainage pipes and pump impellers, resulting in a decrease in drainage capacity, but may even cause safety accidents. Therefore, it is crucial to regularly dredge the mine sump.

[0003] In order to remove the silt in the sump, existing technical solutions usually adopt dredging devices. One common method is to use a stirring mechanism to agitate and dilute the silt so that it can be discharged with the pump. When dealing with silt, traditional stirring mechanisms often supplement with structures such as guide plates, attempting to squeeze or guide the silt in the distance to the stirring area.

[0004] However, this method of squeezing and guiding silt through a guide plate has obvious technical defects. The guide plate easily causes the silt to become stuck, that is, the silt stagnates during the process of being squeezed or guided and cannot flow smoothly to the stirring mechanism. This sticking not only hinders the effective transportation of silt but also causes a sudden increase in the local compactness of the silt near the sticking area.

[0005] Furthermore, when the silt is blocked and cannot flow into the stirring mechanism, the stirring mechanism will run idly, and the power cannot be effectively utilized. And when the silt with a sudden increase in local compactness suddenly breaks through the obstruction and flows into the stirring mechanism, it will cause a sudden increase in the load (output) of the stirring mechanism. This sharp change in load results in extremely unstable output of the stirring mechanism. Long-term unstable output will significantly increase the alternating stress of key components such as the rotating shaft and mixing blades of the stirring mechanism, accelerating component fatigue damage. Eventually, this unstable working state and increased alternating stress are likely to cause mechanical losses, failures in the stirring mechanism, and even shorten its service life, increasing the equipment maintenance cost and downtime. Summary of the Invention

[0006] The main object of the present invention is to overcome the defects existing in the mine sump dredging device in the prior art, such as easy silt jamming, resulting in severe fluctuations in the stirring load, easy fatigue damage of components, and short service life. A new type of mine sump dredging device is provided. This device can effectively break and loosen the silt at the inlet, prevent jamming, and ensure the smooth and stable removal of silt through pulsed air flow assistance. At the same time, the device is driven by a constant force to ensure stable forward movement, improving the dredging efficiency and equipment reliability.

[0007] The present invention adopts the following technical solutions.

[0008] A mine sump dredging device includes a body. A suction shovel for sucking silt is provided on the body. The suction shovel includes a cutter for sucking external silt and an auger for transporting silt. The auger is connected with a conveying pipe, and a pulsed air flow mechanism is provided on the conveying pipe;

[0009] A guiding silt plate is provided on the mud-facing side of the cutter, and a pushing mechanism is provided on the guiding silt plate.

[0010] The pushing mechanism includes a moving plate. The moving plate is connected with a first power mechanism. The first power mechanism can drive the moving plate to make a reciprocating movement along the guiding silt plate close to or away from the cutter. A paddle is hinged on the moving plate.

[0011] When the first power mechanism drives the moving plate to move in the direction close to the cutter, the paddle and the moving plate are in an open state; when the first power mechanism drives the moving plate to move in the direction away from the cutter, the paddle and the moving plate are in a closed state.

[0012] It also includes a second power mechanism. A constant force spring is connected between the second power mechanism and the body. The second power mechanism can move intermittently.

[0013] Further, a plurality of moving plates are provided. The motion phases of adjacent moving plates are opposite.

[0014] Trigger blocks corresponding to the paddles are provided on the guiding silt plate, and abutting shoulders cooperating with the trigger blocks are provided on the paddles.

[0015] When the abutting shoulder abuts against the trigger block, the paddle and the moving plate are in an open state.

[0016] Further, the first power mechanism includes a rotatable crankshaft. The crankshaft is drivingly connected with a first power assembly. A plurality of rotatable connecting rods are provided on the crankshaft. One end of the connecting rod is hinged with the moving plate.

[0017] Further, the pulsed air flow mechanism includes a temporary storage tank disposed between the auger and the delivery pipe, and a plurality of air supply assemblies spaced apart on the delivery pipe. The temporary storage tank and the air supply assemblies are connected to a pulsed air pump through air supply hoses.

[0018] Further, it further includes a guide rail, on which a plurality of load-bearing seats are slidably connected, and the delivery pipe is suspended on the load-bearing seats.

[0019] Further, the delivery pipe includes a plurality of hose segments and hard pipe segments alternately and spacedly connected. The hard pipe segment is provided with air guide holes and a piston.

[0020] The air supply assembly includes a cylinder body slidably sleeved outside the piston. The cylinder body is fixedly connected to the load-bearing seat. An air inflation cavity is formed between the piston and the cylinder body. The air inflation cavity is communicated with the pulsed pump. The cylinder body is provided with a plugging wall capable of closing the air guide holes.

[0021] The piston has a first position and a second position. When the piston is in the first position, the plugging wall closes the air guide holes. When the piston is in the second position, the air inflation cavity is communicated with the air guide holes.

[0022] A return spring is arranged between the cylinder body and the piston, and the return spring makes the piston tend to stay in the first position.

[0023] The air pressure in the air inflation cavity makes the piston tend to move towards the second position.

[0024] The pulsed air pump is also communicated with the air inflation cavity through the air supply hose.

[0025] Further, a rack is fixedly connected to the guide rail.

[0026] The second power mechanism includes a traction frame slidably connected to the guide rail. A traction wheel meshing with the rack is arranged on the traction frame, and the traction wheel is connected with a second power assembly.

[0027] The beneficial effects of the present invention are as follows:

[0028] 1. Active pushing to avoid jamming: Through the pushing mechanism provided on the mud guiding plate, especially the cooperative work of the moving plate and the paddle, when the moving plate moves away from the cutter, the closed paddles can actively "push" or "pull" the silt towards the cutter area. This active pushing method replaces the passive extrusion of the traditional guide plate, effectively avoiding the jamming of the silt near the guide plate and ensuring the smooth flow of the silt towards the cutter.

[0029] 2. Stable load and equipment protection: Since the sludge can be continuously and stably pushed to the cutter head, sudden influx or long-term lack of material of the sludge is avoided, making the load on the cutter head and the auger more stable and preventing the impact caused by sudden increase or decrease of the load. This significantly reduces the alternating stress on key components such as the rotating shafts and blades of the mixing mechanism (cutter head, auger), reduces component fatigue damage, extends the service life of the equipment, and reduces the failure rate and maintenance cost.

[0030] 3. Auxiliary conveying and efficiency improvement: The pulse air flow mechanism provided on the conveying pipe can inject pulse air flow into the pipeline to reduce the flow resistance of the sludge in the pipeline, prevent sludge settlement and blockage, especially with better effect during long-distance conveying, and improve the overall dredging and conveying efficiency.

[0031] 4. Stable contact and strong adaptability: Through the cooperation of the second power mechanism and the constant force spring, the entire dredging device can move stably, and the suction shovel can continuously and stably press on the sludge layer, adapting to the unevenness that may exist at the bottom of the sump, and ensuring the dredging effect. Brief Description of the Drawings

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0033] Figure 1 It is a schematic structural diagram of an embodiment of the present invention;

[0034] Figure 2 It is a three-dimensional structural diagram of the pushing mechanism in an embodiment of the present invention;

[0035] Figure 3 It is Figure 2 an enlarged view of part A of

[0036] Figure 4 It is a schematic structural diagram of the pulse air flow mechanism in an embodiment of the present invention;

[0037] Figure 5 It is a schematic structural diagram of the piston of the pulse air flow mechanism in the second position in an embodiment of the present invention;

[0038] Figure 6 It is a schematic structural diagram of the piston of the pulse air flow mechanism in the first position in an embodiment of the present invention;

[0039] Figure 7 It is a cross-sectional view of the suction shovel in an embodiment of the present invention;

[0040] Figure 8Schematic diagram of the slice shear of silt in an embodiment of the present invention.

[0041] Description of reference numerals:

[0042] 1. Suction shovel; 11. Cutter head; 12. Screw conveyor

[0043] 2. Mud guide plate; 21. Trigger block

[0044] 3. Delivery pipe; 31. Hose section; 32. Rigid pipe section

[0045] 321. Air guide hole; 322. Piston

[0046] 4. Pulse air flow mechanism; 40. Temporary storage tank; 41. Air supply assembly

[0047] 411. Cylinder block; 412. Inflation chamber; 413. Sealing wall; 414. Return spring

[0048] 42. Air supply hose

[0049] 43. Pulse air pump

[0050] 5. Pushing mechanism

[0051] 51. Moving plate; 52. Slice

[0052] 521. Abutting shoulder

[0053] 53. Installation groove

[0054] 6. First power mechanism

[0055] 61. Crankshaft; 62. First power assembly; 63. Connecting rod

[0056] 7. Second power mechanism

[0057] 70. Rack; 71. Traction frame; 72. Traction wheel; 73. Second power assembly; 74. Constant force spring

[0058] 8. Guide rail; 81. Load-bearing seat

[0059] 9. Machine body Detailed implementation mode

[0060] The drawings are only for illustrative purposes and should not be construed as limitations on this patent; for a better illustration of this embodiment, some components in the drawings may be omitted, enlarged or reduced, which do not represent the dimensions of the actual product.

[0061] For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The technical solutions of the present invention will be further described below with reference to the drawings and embodiments.

[0062] As shown in the attached Figure 1-8 A mine sump dredging device, including a body 9, on which there is a suction shovel 1 for sucking silt. The suction shovel 1 includes a cutter 11 for sucking external silt and an auger 12 for transporting silt. The auger 12 is connected to a delivery pipe 3, and a pulsed air flow mechanism 4 is provided on the delivery pipe 3.

[0063] The suction shovel 1 is the core component for performing the dredging operation. Its front end is provided with a cutter 11 for breaking and agitating the silt at the bottom of the sump. The cutter 11 is connected to an auger 12 behind it. The auger 12 is arranged inside the housing and is used to suck the silt agitated by the cutter 11 and transport it backward to the delivery pipe 3.

[0064] Crucially, an inclined mud guiding plate 2 is provided on the mud-facing side of the cutter 11 (i.e., the direction in which the silt enters the cutter 11). The function of the mud guiding plate 2 is to initially guide the flow direction of the silt. A pushing mechanism 5 is provided on the mud guiding plate 2.

[0065] The pushing mechanism 5 is used to actively push the silt in the area of the mud guiding plate 2 towards the cutter 11. The pushing mechanism 5 includes at least one moving plate 51. The moving plate 51 can reciprocate along the surface of the mud guiding plate 2, that is, move closer to and away from the cutter 11. The first power mechanism 6 drives the reciprocating movement of the moving plate 51.

[0066] In a preferred embodiment, the first power mechanism 6 may include a crankshaft 61 driven by a first power assembly 62. The crankshaft 61 is articulated to different moving plates 51 through a plurality of connecting rods 63. Through the rotation of the crankshaft 61, the connecting rods 63 drive the moving plates 51 to generate reciprocating linear motion. The first power assembly 62 includes a motor and a reducer.

[0067] At least one paddle 52 is articulated on each moving plate 51. The paddle 52 is the key to achieving active pushing.

[0068] Its working principle is as follows:

[0069] When the first power mechanism 6 drives the moving plate 51 to move towards the cutter 11, the resistance of the silt will cause the paddle 52 to tend to flip in the direction away from the cutter 11. In this embodiment, the paddle 52 is arranged in an installation groove 53 opened on the moving plate 51, and the paddle 52 is rotatably connected to the end of the installation groove 53 away from the cutter 11, as shown in the attached Figure 3 figure. As the moving plate 51 further moves towards the cutter 11, the resistance of the silt will push the paddle 52 to flip in the direction away from the cutter 11 until the paddle 52 abuts against the end wall of the installation groove 53 at the end away from the cutter 11. At this time, the paddle 52 and the moving plate 51 are in an open state, so as to push the silt downward with a larger acting area.

[0070] When the first power mechanism 6 drives the moving plate 51 to move away from the reamer 11, the resistance of the silt will cause the paddle 52 to flip towards the reamer 11, so that the paddle 52 retracts into the installation groove 53. At this time, the paddle 52 and the moving plate 51 are in a closed state, which fully reduces the resistance during movement and also avoids driving the silt upward.

[0071] To achieve more continuous silt pushing, multiple moving plates 51 can be provided. The motion phases of adjacent moving plates 51 are opposite. For example, when one moving plate 51 is performing a working stroke away from the reamer 11, its adjacent moving plate 51 is performing a return stroke towards the reamer 11. This can ensure that there is always a moving plate 51 pushing the silt towards the reamer 11, making the silt supply more continuous and stable.

[0072] To ensure that the paddle 52 can reliably open when moving towards the reamer 11, a trigger block 21 corresponding to the paddle 52 can be provided on the mud guide plate 2. At the same time, a corresponding abutting shoulder 521 is provided on the paddle 52. When the moving plate 51 moves to the end of the stroke near the reamer 11 or a specific position during the process, the abutting shoulder 521 on the paddle 52 abuts against the trigger block 21 on the mud guide plate 2, forcing the paddle 52 to lift to the open state to prepare for the next working stroke away from the reamer 11.

[0073] When the moving plate 51 moves to the position of the trigger block 21 in the direction away from the reamer 11, the paddle 52 on this moving plate 51 changes from the closed state to the open state. At this time, another adjacent moving plate 51 is moving towards the reamer 11 and is in the open state. In this way, the open paddles 52 on the two adjacent moving plates 51 move towards each other, thus playing a shearing effect similar to that of scissors, as shown in the appendix. Figure 8 As shown. In this way, with the cooperation of adjacent moving plates 51, the paddles 52 move alternately continuously, and can shear, break and stir the silt about to enter the entrance of the suction shovel 1, effectively preventing the silt from agglomerating or jamming here.

[0074] The outlet of the auger 12 is connected to the delivery pipe 3 for transporting the silt slurry to the outside of the sump or a designated location. To improve the transportation efficiency and prevent the silt from settling and blocking in the long-distance delivery pipe 3, a pulsed air flow mechanism 4 is provided.

[0075] The pulsed air flow mechanism 4 includes a pulsed air pump 43, and the air pump is connected to a plurality of air supply components 41 provided on the delivery pipe 3 through an air supply hose 42.

[0076] In one embodiment, a buffer tank 40 is provided between the auger 12 and the conveying pipe 3, which is used to buffer and stabilize the sludge flow output from the auger 12 and serve as the starting point for the action of the pulsed air flow. The pulsed air pump 43 is also connected to the buffer tank 40 through an air supply hose 42 and is connected to a plurality of air supply components 41 arranged at intervals on the conveying pipe 3.

[0077] The conveying pipe 3 itself can be formed by alternately connecting a plurality of hose segments 31 and hard pipe segments 32 at intervals, which not only ensures the overall flexibility but also facilitates the installation of the air supply components 41 on the hard pipe segments 32.

[0078] To support the conveying pipe 3, especially when the conveying distance is long, a guide rail 8 is provided, and a plurality of load-bearing seats 81 are slidably connected to the guide rail 8. The conveying pipe 3 is suspended on these load-bearing seats 81.

[0079] Each air supply component 41 is installed on the hard pipe segment 32. An air guide hole 321 is provided on the hard pipe segment 32, and a piston 322 is built in. The air supply component 41 includes a cylinder block 411, which is slidably sleeved outside the piston 322 and is fixedly connected to the load-bearing seat 81. An air inflation chamber 412 is formed between the piston 322 and the cylinder block 411, and the air inflation chamber 412 is communicated with the pulsed air pump 43 through the air supply hose 42. A blocking wall 413 capable of closing the air guide hole 321 is provided on the cylinder block 411.

[0080] The piston 322 can move within the cylinder block 411 and has a first position and a second position. In the first position, the blocking wall 413 exactly blocks the air guide hole 321 on the hard pipe section 32. A return spring 414 is arranged between the cylinder block 411 and the piston 322, and the function of this spring is to make the piston 322 tend to stay in the first position. When the pulse air pump 43 delivers compressed air into the inflation chamber 412, the air pressure in the inflation chamber 412 increases, thereby generating a thrust on the piston 322. When this thrust is sufficient to overcome the elastic force of the return spring 414 and other resistances, the piston 322 is pushed towards the second position. In the second position, the blocking wall 413 moves away from the air guide hole 321, enabling the inflation chamber 412 to communicate with the inside of the delivery pipe 3 through the air guide hole 321, and the compressed air is instantly injected into the sludge in the delivery pipe 3. When the pulse air pump 43 stops supplying air or enters a low-pressure cycle, the air pressure in the inflation chamber 412 drops, and the return spring 414 pushes the piston 322 back to the first position, and the blocking wall 413 closes the air guide hole 321 again, waiting for the next pulse. By controlling the inflation timing of each air supply component 41 through the pulse air pump 43, a traveling air mass can be formed in the delivery pipe 3, agitating the sludge, reducing the viscosity, providing the conveying power, and effectively preventing blockage. At the same time, when the piston 322 moves on the cylinder block 411, it will cause the hose section 31 to shake intermittently, preventing sludge from blocking in the hose section 31. The solid particles in the sludge will gradually settle to the bottom of the hose under the action of gravity, forming a sediment layer. At the same time, the viscosity of the sludge may also cause it to adhere to the inner wall of the hose. The intermittent shaking will give a short mechanical impact to the hose section 31 and the sludge inside it. This impact can re-suspend the already settled particles into the liquid, break or weaken the adhesion between the sludge and the inner wall of the hose, and cause the adhered sludge to fall off.

[0081] In order to enable the dredging device to move within the sump to clean the sludge in different areas, a second power mechanism 7 is provided. The second power mechanism 7 is connected to the body 9 through a constant force spring 74. The function of the constant force spring 74 is to maintain a relatively constant pulling force or pushing force on the body 9 during the traction process, so that the suction shovel 1 can contact the sludge layer at the bottom of the sump with a stable pressure, which helps to prevent the suction shovel 1 from being overloaded.

[0082] Specifically, compared with the traditional driving method - the traditional driving method directly drives the suction shovel 1 to move through a traction device. When the moving speed of the traction device is too fast, or the hardness of the sludge is relatively large, the mud intake speed of the suction shovel 1 exceeds its mud discharge speed, resulting in the continuous accumulation and mutual extrusion of the sludge in the suction shovel 1, thereby increasing the density of the sludge and ultimately causing the suction shovel 1 to be overloaded or even blocked.

[0083] In this embodiment, the second power mechanism 7 adopts an intermittent movement mode, that is, the second power mechanism 7 only moves a set distance each time and then stops, and the second power mechanism 7 is connected to the body 9 through a constant force spring 74. When the mud inlet speed of the suction shovel 1 exceeds its mud discharge speed, the mud will accumulate in the suction shovel 1, causing the suction shovel 1 to move relative to the second power mechanism 7, increasing the distance between the two, and stretching the constant force spring 74, so that the suction shovel 1 can contact the mud layer at the bottom of the sump with a stable pressure. During the stop of the second power mechanism 7, the suction shovel 1 can still contact the mud layer at the bottom of the sump with a stable pressure under the pulling force of the constant force spring 74. As the suction shovel 1 discharges the mud, the suction shovel 1 will gradually approach the second power mechanism 7 under the pulling force of the constant force spring 74. When the distance between the suction shovel 1 and the second power mechanism 7 returns to the predetermined value, the second power mechanism 7 restarts. In this embodiment, a position sensor can be set between the suction shovel 1 and the second power mechanism 7. When the distance between the suction shovel 1 and the second power mechanism 7 returns to the predetermined value, the position sensor is triggered, and the second power mechanism 7 starts accordingly.

[0084] In a specific embodiment, a rack 70 is fixedly connected to the guide rail 8. The second power mechanism 7 includes a traction frame 71 slidably connected to the guide rail 8. A second power assembly 73 is installed on the traction frame 71, and the second power assembly 73 drives the traction wheel 72 to rotate. The traction wheel 72 is a gear meshing with the rack 70. By controlling the second power assembly 73 to drive the traction wheel 72 to rotate forward and backward, the traction frame 71 can move precisely along the guide rail 8. Since the traction frame 71 is connected to the body 9 through a constant force spring 74, the movement of the traction frame 71 will drive the entire dredging device to move along the guide rail 8. The second power assembly 73 includes a motor and a reducer.

[0085] The working process of the present invention is as follows:

[0086] During the dredging operation, the entire device is placed in the mine sump so that the suction shovel 1 contacts the mud. Start the first power mechanism 6, the cutter 11 and the auger 12 of the suction shovel 1. At the same time, start the second power mechanism 7 to make the second power mechanism 7 move intermittently. The first power mechanism 6 drives the pushing mechanism 5 to work, and the paddle 52 on the moving plate 51 actively pushes the mud towards the cutter 11 during the stroke away from the cutter. The cutter 11 agitates and breaks the mud, and the auger 12 sucks and conveys the mud to the conveying pipe 3. Start the pulse air pump 43, and the pulse air flow mechanism 4 starts to work. Pulse air flow is injected into the conveying pipe 3 through each air supply component 41 to assist the slurry to flow in the conveying pipe 3 until it is discharged from the sump. The constant force spring 74 ensures that the suction shovel 1 maintains a stable contact pressure with the mud layer.

[0087] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A mine sump desilting device, comprising a body, on which a suction shovel for sucking sludge is arranged, characterized in that: The suction shovel includes a reamer for sucking external sludge and an auger for conveying sludge, the auger is connected to a conveying pipe, and a pulse airflow mechanism is provided on the conveying pipe; The mud facing side of the reamer is provided with an inclined mud guide plate, and the mud guide plate is provided with a pushing mechanism. The pushing mechanism comprises a moving plate, the moving plate is connected to a first power mechanism, the first power mechanism can drive the moving plate to move back and forth along the mud guide plate to approach or move away from the reamer, and a paddle is hinged on the moving plate; When the first power mechanism drives the movable plate to move toward the direction close to the reamer, the paddle and the movable plate are in an open state; when the first power mechanism drives the movable plate to move away from the reamer, the paddle and the movable plate are in a closed state; It also includes a second power mechanism, a constant force spring is connected between the second power mechanism and the machine body, and the second power mechanism can move intermittently.

2. A mine sump desilting device according to claim 1, characterized in that: There are a plurality of movable plates, and the movement phases of adjacent movable plates are opposite; The mud guide plate is provided with a trigger block corresponding to the paddle, and the paddle is provided with an abutment shoulder matched with the trigger block; When the abutting shoulder abuts against the trigger block, the paddle and the moving plate are in an open state.

3. A mine water tank desilting device according to claim 1, characterized in that: The first power mechanism comprises a rotatable crankshaft, the crankshaft is drivingly connected to the first power assembly, a plurality of rotatable connecting rods are arranged on the crankshaft, and one end of the connecting rod is hinged to the movable plate.

4. A mine water tank desilting device according to claim 1, characterized in that: The pulse airflow mechanism comprises a temporary storage tank arranged between the auger and the delivery pipe, and a plurality of air supply components arranged at intervals on the delivery pipe. The temporary storage tank and the air supply components are connected to a pulse air pump via an air supply hose.

5. A mine water tank desilting device according to claim 4, characterized in that: It also includes a guide rail, on which a plurality of load-bearing seats are slidably connected, and the conveying pipe is suspended on the load-bearing seats.

6. A mine water tank desilting device according to claim 5, characterized in that: The delivery pipe comprises a plurality of hose sections and hard pipe sections that are alternately connected at intervals, and the hard pipe section is provided with an air guide hole and a piston; The air supply assembly includes a cylinder body slidably sleeved on the outside of the piston, the cylinder body is fixedly connected to the load-bearing seat, an air-filling cavity is formed between the piston and the cylinder body, the air-filling cavity is connected to the pulse pump, and a blocking wall capable of closing the air guide hole is provided on the cylinder body; The piston has a first position and a second position, and when the piston is in the first position, the blocking wall closes the air guide hole; When the piston is in the second position, the inflation chamber is communicated with the air guide hole; A return spring is provided between the cylinder body and the piston, and the return spring has a tendency to keep the piston in the first position; The air pressure in the air-filled chamber causes the piston to tend to move toward the second position; The pulse air pump is also connected to the inflation chamber through the air supply hose.

7. A mine water tank desilting device according to claim 5, characterized in that: A rack is fixedly connected to the guide rail; The second power mechanism comprises a traction frame slidably connected to the guide rail, the traction frame is provided with a traction wheel meshed with the rack, and the traction wheel is connected to the second power assembly.

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