Coal mine underground grouting filling rapid slurrying device and method thereof

Abstract

The invention relates to the technical field of mining area filling, in particular to a coal mine underground grouting filling rapid slurrying device and a method thereof.The coal mine underground grouting filling rapid slurrying device comprises a stirring tank, a water inlet pipe is fixedly connected to the top of the stirring tank, a vertical pipe is installed above the water inlet pipe through a flange, and a spherical end is arranged on the vertical pipe; a cylindrical expansion end is arranged on the vertical pipe and located above the spherical end, a pressure-bearing ring capable of moving up and down is arranged in the cylindrical expansion end, and the spherical end is arranged on the vertical pipe and matched with a rotatable spherical valve element in the spherical end, so that after water injection is completed, a spring is lifted up to drive the pressure-bearing ring to move upwards, and the pressure-bearing ring is driven to move upwards. The pressure-bearing ring moves upwards to finally drive the spherical valve element to rotate, so that the water injection hole and the vertical pipe are staggered, the spherical end is sealed, and dust is prevented from entering the water injection pipe and being adsorbed together with water attached to the pipe wall of the water injection pipe to generate condensation, so that water flow passing through the water injection pipe is affected.

Description

Technical Field

[0001] The invention relates to the technical field of filling filling materials in underground mining areas, and in particular to a rapid grouting device and method for underground coal mine grouting filling. Background Art

[0002] The underground mining area refers to the coal mining area underground, which is generally divided into several mining areas. After the coal mining face is completed, a goaf area will be formed underground. In order to improve the safety of coal mining, it is necessary to use equipment to quickly make pulp and fill it by grouting.

[0003] In the prior art, a grouting filling rapid pulping device and method (IPC classification number is E21F15 / 00) proposed in patent application number "CN201810083048.1" includes a pneumatic high water supply pressure quantitative water tank, a mixer and a mixing barrel. The water in the water tank is transported to the mixing barrel through a water pipe, and the water and the material for filling are stirred in the mixing barrel to quickly complete the pulping.

[0004] However, in the prior art, such as the pulping device proposed in patent application number "CN201810083048.1", after the coal gangue or other materials that are prone to generate dust are crushed and transported to the mixing barrel, the generated dust will enter the water pipe pipeline, and then mix with the residual moisture on the inner wall of the water pipe pipeline, and condense on the inner wall of the water pipe pipeline, affecting the water flow capacity of the water pipe pipeline. Summary of the invention

[0005] The object of the present invention is to provide a rapid slurry making device and method for grouting filling in coal mines to solve the problems raised in the above-mentioned background technology.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A rapid grouting and filling slurry making device for underground coal mines comprises a stirring tank, the top of the stirring tank is fixedly connected to a water inlet pipe, a vertical pipe is installed above the water inlet pipe through a flange, a spherical end is arranged on the vertical pipe, a cylindrical extension end is arranged on the vertical pipe and above the spherical end, a pressure-bearing ring that can move up and down is arranged in the cylindrical extension end, a rotatable spherical valve core is arranged in the spherical end, and a water injection hole is opened on the spherical valve core.

[0008] A rotating rod is fixedly connected to the spherical valve core, one end of the rotating rod and located outside the spherical end is fixedly connected to a rotating ring, the outer surface of the rotating ring is fixedly connected to an adjusting link, the end of the adjusting link away from the rotating ring is rotatably connected to a lifting link, a driving link is fixedly connected to the center position of the top of the pressure ring, one end of the driving link passes through the top of the vertical tube and extends to the outside of the vertical tube, the end of the driving link located outside the vertical tube is bent downward and fixedly connected to the lifting link, so as to drive the lifting link to move up and down.

[0009] Preferably, connecting blocks are fixedly connected on both sides of the pressure ring, and vertical guide rods are fixedly connected inside the cylindrical extension end and on both sides of the pressure ring. The vertical guide rods and the connecting blocks are slidably connected to realize the up and down movement of the pressure ring, and a lifting spring is sleeved on the vertical guide rod, and the top of the lifting spring and the bottom of the connecting block are fixedly connected.

[0010] Preferably, the bottom of the pressure ring is fixedly connected to a positioning sleeve, a positioning spring is fixedly connected inside the positioning sleeve, the bottom of the positioning spring is fixedly connected to a positioning protrusion, the bottom of the positioning protrusion is fixedly connected to a transverse connecting rod, the bottom of the transverse connecting rod is fixedly connected to two positioning card shafts, and the bottom of the positioning card shafts is located in the water injection hole.

[0011] Preferably, one end of the adjusting link passes through the spherical end and extends to the outside of the spherical end, the end of the adjusting link located outside the spherical end is fixedly connected to the center of the rotating ring, the outer surface of the cylindrical extension end is fixedly connected to a limiting plate, a limiting groove is opened on the lifting link, the limiting groove and the limiting plate are slidably connected, and one end of the limiting plate is fixedly connected to a limiting protrusion.

[0012] Preferably, a horizontal tube is fixedly connected to one side of the vertical tube and located above the cylindrical expansion end, a water injection pipe is fixedly connected to one end of the horizontal tube, a fixed sleeve is fixedly connected inside the horizontal tube, and a curved guide tube is fixedly connected to one end of the fixed sleeve and located inside the vertical tube.

[0013] Preferably, a movable plunger is movably connected in the fixed sleeve, one end of the movable plunger is fixedly connected to a connecting rope, and the other end is fixedly connected to an elastic pull rope, a connecting bracket is fixedly connected in the horizontal tube, one end of the elastic pull rope away from the movable plunger is fixedly connected to the connecting bracket, one end of the connecting rope passes through the curved guide tube and the pressure ring in sequence and is fixedly connected to the transverse connecting rod, so as to drive the transverse connecting rod to move up and down.

[0014] Preferably, a material input pipe and a stirring motor are fixedly connected to the top of the stirring tank, a stirring rod is fixedly connected to the output end of the stirring motor and located inside the stirring tank, a plurality of stirring shafts are fixedly connected to the outer surface of the stirring rod, a material discharge pipe is fixedly connected to the bottom of the stirring tank, and a solenoid valve is provided on the material discharge pipe.

[0015] Preferably, the inner surface of the mixing tank is fixedly connected to a partition frame, the bottom of the mixing rod passes through the partition frame and extends to the outside of the partition frame, the outer surface of the mixing rod is rotatably connected to a fixed shaft above the partition frame, and one end of the fixed shaft is rotatably connected to a counterweight pressure roller.

[0016] Preferably, a vertical groove is provided on one side of the stirring rod and above the partition grid, a guide circular shaft is fixedly connected in the vertical groove, a rectangular block is slidably connected to the guide circular shaft, an inclined connecting plate is rotatably connected to one side of the rectangular block, and the bottom of the inclined connecting plate is rotatably connected to the top of the fixed shaft.

[0017] A slurry making method for a coal mine underground grouting filling rapid slurry making device, comprising the following steps:

[0018] S1. External water enters the vertical pipe through the water injection pipe and the horizontal pipe, and impacts the pressure ring. The pressure ring drives the positioning sleeve and the positioning convex rod to move downward. The positioning convex rod drives the transverse connecting rod and the positioning clamp shaft to move downward. The bottom of the positioning clamp shaft contacts the surface of the spherical valve core.

[0019] When the pressure ring moves downward, it will drive the driving connecting rod, the lifting connecting rod and the adjusting connecting rod to move downward. The downward movement of the adjusting connecting rod drives the rotating ring to rotate counterclockwise. The rotating ring drives the spherical valve core to rotate counterclockwise on the pressure ring through the rotating rod until the water injection hole rotates and the vertical pipe is aligned in the same vertical direction. The positioning spring stretches and presses down the positioning protrusion, and drives the transverse connecting rod and the positioning card shaft to move downward, so that the positioning card shaft moves down into the water injection hole to position the spherical valve core. When water flows through the inner wall of the vertical pipe, it can pass through the water injection hole smoothly and finally enter the interior of the mixing tank.

[0020] S2. Input the material into the stirring tank through the material input pipe, and use the stirring motor to drive the stirring rod and the stirring shaft to rotate, mix the material and water, and complete the pulping.

[0021] Beneficial effects of the present invention:

[0022] 1. The present invention arranges a spherical end on the vertical tube, and cooperates with a rotatable spherical valve core inside the spherical end, so that the water flow impacts the pressure ring during water injection, and the downward movement of the pressure ring eventually drives the spherical valve core to rotate, so that the vertical tube and the water injection hole are aligned, and the water flow can complete the water injection through the spherical end. After the water injection is completed, the spring is lifted to drive the pressure ring to move upward, and the upward movement of the pressure ring eventually drives the spherical valve core to rotate, so that the water injection hole and the vertical tube are staggered, and the spherical end is closed to avoid dust generated when injecting materials through the material input pipe into the water injection pipe, and to prevent dust from entering the water injection pipe and being adsorbed by water attached to the wall of the water injection pipe to produce condensation, thereby affecting the water flow through the water injection pipe.

[0023] 2. The present invention allows the spherical valve core to rotate by means of a positioning card shaft provided below the pressure-bearing ring until the vertical tube and the water injection hole are aligned, and the positioning card shaft can be inserted into the water injection hole to position the spherical valve core, so that the spherical valve core does not rotate during water injection, and the water flow through the spherical end is more stable. After the water injection is completed, the elastic pull rope is contracted to eventually drive the positioning card shaft to move upward without affecting the pressure-bearing ring, so that the positioning card shaft is separated from the water injection hole. At this time, the pressure-bearing ring can move upward, and eventually drive the spherical valve core to rotate, so that the water injection hole and the vertical tube are staggered, and the spherical end is closed.

[0024] 3. The present invention can filter out the lumps that enter the material in the stirring tank by means of a partition grid arranged in the stirring tank, and when the stirring motor drives the stirring rod to rotate, the counterweight pressure roller is driven to rotate to crush the lumps, so that the lumps can enter the stirring tank through the partition grid, so that the slurry prepared in the stirring tank is more uniform and sufficient, and at the same time, when the counterweight pressure roller rotates around the stirring rod, it can also push the lumps, so that the lumps move to the bottom of the water inlet pipe, and the water flowing down in the water inlet pipe is used to moisten the lumps, so that the lumps are easier to be crushed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 The present invention Figure 1 Schematic diagram of the structure of the middle vertical tube;

[0028] Figure 3 The present invention Figure 2 Rear view of the middle vertical tube;

[0029] Figure 4 The present invention Figure 3 Side view of the middle vertical tube;

[0030] Figure 5 The present invention Figure 1 Schematic diagram of the structure of the bottom of the middle stirring tank;

[0031] Figure 6 The present invention Figure 1 A cross-sectional view of the stirring tube;

[0032] Figure 7 The present invention Figure 6A magnified view of the structure at center A;

[0033] Figure 8 The present invention Figure 2 A cross-sectional view of the middle vertical tube;

[0034] Fig. 9 The present invention Figure 8 A schematic diagram of the structure of the middle columnar extension end;

[0035] Fig.10 The present invention Figure 8 Schematic diagram of the connection between the movable plunger and the positioning card shaft.

[0036] The reference numerals in the figures are as follows:

[0037] 1. Mixing tank, 2. Water inlet pipe, 3. Vertical pipe, 301. Spherical end, 302. Columnar extension end, 4. Pressure ring, 5. Spherical valve core, 6. Water injection hole, 7. Rotating rod, 8. Rotating ring, 9. Adjusting connecting rod, 10. Lifting connecting rod, 11. Driving connecting rod, 12. Connecting block, 13. Vertical guide rod, 14. Lifting spring, 15. Positioning sleeve, 16. Positioning spring, 17. Positioning convex rod, 18. Transverse connecting rod, 19. Positioning card shaft, 20. Limiting plate, 21. Limiting groove, 22. Limiting protrusion, 23. Horizontal pipe, 24. Water injection pipe, 25. Fixed sleeve, 26. Bending guide pipe, 27. Movable plunger, 28. Connecting rope, 29. Elastic rope, 30. Connecting bracket, 31. Material input pipe, 32. Stirring motor, 33. Stirring rod, 34. Stirring shaft, 35. Feeding pipe, 36. Solenoid valve, 37. Partitioning grid, 38. Fixed shaft, 39. Counterweight roller, 40. Vertical groove, 41. Guide circular shaft, 42. Rectangular block, 43. Inclined connecting plate. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, 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.

[0039] The utility model relates to a rapid pulping device for grouting filling in underground coal mines, which is a pulping device related to a device for filling filling materials in underground mining areas, and its IPC classification number is E21F15 / 00.

[0040] A rapid grouting and filling slurry making device for underground coal mines comprises a stirring tank 1, a water inlet pipe 2 is fixedly connected to the top of the stirring tank 1, a vertical pipe 3 is installed above the water inlet pipe 2 through a flange, a spherical end 301 is arranged on the vertical pipe 3, a cylindrical extension end 302 is arranged on the vertical pipe 3 and above the spherical end 301, a pressure-bearing ring 4 that can move up and down is arranged in the cylindrical extension end 302, a rotatable spherical valve core 5 is arranged in the spherical end 301, and a water injection hole 6 is opened on the spherical valve core 5.

[0041] The spherical valve core 5 is fixedly connected with a rotating rod 7, one end of the rotating rod 7 and located outside the spherical end 301 is fixedly connected with a rotating ring 8, the outer surface of the rotating ring 8 is fixedly connected with an adjusting link 9, the end of the adjusting link 9 away from the rotating ring 8 is rotatably connected with a lifting link 10, and a driving link 11 is fixedly connected to the center position of the top of the pressure ring 4, one end of the driving link 11 passes through the top of the vertical tube 3 and extends to the outside of the vertical tube 3, the end of the driving link 11 located outside the vertical tube 3 is bent downward and fixedly connected to the lifting link 10, so as to drive the lifting link 10 to move up and down.

[0042] like Figure 1 and Figure 2 , the external water supply equipment is connected to the water injection pipe 24, and enters the interior of the mixing tank 1 through the water injection pipe 24, the horizontal pipe 23, the vertical pipe 3 and the water inlet pipe 2 in sequence. The vertical pipe 3 is fixed to the top of the water inlet pipe 2 through a flange. The inner diameters of the horizontal pipe 23 and the vertical pipe 3 are consistent and both are larger than the inner diameter of the water injection pipe 24, so that when other components are arranged in the horizontal pipe 23 and the vertical pipe 3, the water flow in the water injection pipe 24 is not affected. The inner diameters of the spherical end 301 and the cylindrical expansion end 302 are both larger than the inner diameter of the vertical pipe 3, and the inner diameter of the vertical pipe 3 is consistent with the inner diameter of the water injection hole 6;

[0043] By utilizing the design that the inner diameter of the cylindrical extension end 302 is larger than the inner diameter of the vertical tube 3, a pressure ring 4 with a larger area can be set inside the cylindrical extension end 302, thereby increasing the impact force on the pressure ring 4 when the water flows into the cylindrical extension end 302. There is an opening at the top of the vertical tube 3, so that the driving connecting rod 11 can pass through the top of the vertical tube 3, and the vertical tube 3 is connected to the horizontal tube 23.

[0044] The pressure ring 4 is fixedly connected with connecting blocks 12 on both sides, and vertical guide rods 13 are fixedly connected inside the cylindrical extension end 301 and on both sides of the pressure ring 4. The vertical guide rods 13 are slidably connected to the connecting blocks 12 to realize the up and down movement of the pressure ring 4. A lifting spring 14 is sleeved on the vertical guide rods 13, and the top of the lifting spring 14 is fixedly connected to the bottom of the connecting block 12.

[0045] like Figure 2 , Figure 8 and Fig. 9 The two vertical guide rods 13 pass through the connecting blocks 12 on both sides of the pressure ring 4 respectively, so that the connecting block 12 and the pressure ring 4 fixed to the connecting block 12 can only move up and down in the vertical direction. The lifting spring 14 has an upward thrust on the connecting block 12 and the pressure ring 4. The lifting spring 14 is located below the connecting block 12 and can lift the bottom of the connecting block 12, so as to avoid the connecting block 12 and the pressure ring 4 from contacting the inner bottom of the cylindrical expansion end 302 when they descend, and will not cause obstruction to the water flow inside the vertical pipe 3.

[0046] The bottom of the pressure ring 4 is fixedly connected with a positioning sleeve 15, and a positioning spring 16 is fixedly connected inside the positioning sleeve 15. The bottom of the positioning spring 16 is fixedly connected with a positioning protrusion 17, and the bottom of the positioning protrusion 17 is fixedly connected with a transverse connecting rod 18. The bottom of the transverse connecting rod 18 is fixedly connected with two positioning card shafts 19, and the bottom of the positioning card shafts 19 is located in the water injection hole 6.

[0047] like Figure 8 and Fig. 9 The top of the positioning protrusion 17 is located inside the positioning sleeve 15. The positioning spring 16 is used to apply downward pressure to the positioning protrusion 17, so that the transverse connecting rod 18 and the two positioning card shafts 19 can move downward. When the two positioning card shafts 19 descend into the water injection hole 6, they will contact the two sides of the inner wall of the water injection hole 6 to position the spherical valve core 5, so that the spherical valve core 5 cannot rotate, and the water injection hole 6 and the vertical tube 3 are aligned together in the vertical direction.

[0048] One end of the adjusting link 9 passes through the spherical end 301 and extends to the outside of the spherical end 301. The end of the adjusting link 9 located outside the spherical end 301 is fixedly connected to the center of the rotating ring 8. The outer surface of the cylindrical extended end 302 is fixedly connected with a limiting plate 20. A limiting groove 21 is opened on the lifting link 10. The limiting groove 21 and the limiting plate 20 are slidably connected. One end of the limiting plate 20 is fixedly connected to the limiting protrusion 22.

[0049] like Figure 3 and Figure 4 The two ends of the adjusting connecting rod 9 are respectively connected to the center positions of the spherical valve core 5 and the rotating ring 8, so that the spherical valve core 5 and the rotating ring 8 can rotate synchronously. At the same time, the sliding connection between the limiting plate 20 and the limiting groove 21 is used to limit the up and down movement of the lifting connecting rod 10, so that the lifting connecting rod 10 can only move up and down in the vertical direction. The limiting protrusion 22 limits the lifting connecting rod 10 from the outside, so that the limiting plate 20 cannot be separated from the lifting connecting rod 10.

[0050] A horizontal tube 23 is fixedly connected to one side of the vertical tube 3 and located above the cylindrical expansion end 302 , a water injection pipe 24 is fixedly connected to one end of the horizontal tube 23 , a fixing sleeve 25 is fixedly connected inside the horizontal tube 23 , and a curved guide tube 26 is fixedly connected to one end of the fixing sleeve 25 and located inside the vertical tube 3 .

[0051] like Figure 8 and Fig.10 The water injection pipe 24 is connected to the external water supply equipment, the two sides of the fixed sleeve 25 are fixed on the inner surface of the horizontal pipe 23 (not shown in the figure), the curved guide pipe 26 is connected to the fixed sleeve 25, and one end of the curved guide pipe 26 is bent downward and extends into the interior of the vertical pipe 3.

[0052] A movable plunger 27 is movably connected inside the fixed sleeve 25, one end of the movable plunger 27 is fixedly connected to a connecting rope 28, and the other end is fixedly connected to an elastic pull rope 29, a connecting bracket 30 is fixedly connected inside the horizontal tube 23, one end of the elastic pull rope 29 away from the movable plunger 27 is fixedly connected to the connecting bracket 30, one end of the connecting rope 28 passes through the curved guide tube 26 and the pressure ring 4 in sequence and is fixedly connected to the transverse connecting rod 18, so as to drive the transverse connecting rod 18 to move up and down.

[0053] like Figure 8 and Fig.10 One end of the movable plunger 27 protrudes outside the fixed sleeve 25, and the movable plunger 27 can move horizontally in the fixed sleeve 25. By fixing one end of the elastic pull rope 29 by the connecting bracket 30, the elastic pull rope 29 can be kept horizontal and consistent with the water flow direction when the water flows through the horizontal tube 23, reducing the impact force of the water flow on the elastic pull rope 29. At the same time, when the water flows through the horizontal tube 23, the impact force of the movable plunger 27 on the fixed sleeve 25 can be applied. The connecting pull rope 28 passes through the curved guide tube 26, so that the movable direction of the connecting pull rope 28 is changed by using the curved guide tube 26, and the curved surface design at the bending part of the curved guide tube 26 is used to reduce the friction force on the connecting pull rope 28 when it moves. There is an opening on the pressure ring 4 to facilitate the passing of the connecting pull rope 28.

[0054] The top of the stirring tank 1 is fixedly connected to a material input pipe 31 and a stirring motor 32, the output end of the stirring motor 32 is fixedly connected to a stirring rod 33 located inside the stirring tank 1, the outer surface of the stirring rod 33 is fixedly connected to a plurality of stirring shafts 34, and the bottom of the stirring tank 1 is fixedly connected to a feed pipe 35, on which a solenoid valve 36 is provided.

[0055] like Figure 1The stirring tank 1 is fixed on an external device, the material input pipe 31 is connected to the external material input device for grouting in coal mines, the input material is crushed gangue or other crushed materials, the stirring motor 32 is externally connected to a power supply, and a corresponding control switch is arranged on the outside. When the material and water are input into the stirring tank 1, the stirring motor 32 can be started, the stirring motor 32 drives the stirring rod 33 to rotate, and the stirring rod 33 drives the stirring shaft 34 to rotate, so as to stir and mix the material and water in the stirring tank 1, and then open the solenoid valve 36, so that the prepared slurry is output to the external device through the feed pipe 35, and the slurry is transported to the coal mine by the external device to complete the grouting in the coal mine.

[0056] The inner surface of the mixing tank 1 is fixedly connected with a partition frame 37, the bottom of the stirring rod 33 passes through the partition frame 37 and extends to the outside of the partition frame 37, the outer surface of the stirring rod 33 and located above the partition frame 37 is rotatably connected with a fixed shaft 38, and one end of the fixed shaft 38 is rotatably connected with a counterweight roller 39.

[0057] like Figure 6 and Figure 7 The partition grid 37 can be used to partition the internal space of the stirring tank 1, and the un-crushed lumps in the material entering the stirring tank 1 can be filtered out, so that the slurry produced in the stirring tank 1 is more uniform. At the same time, there is an opening at the center of the partition grid 37 to allow the stirring rod 33 to pass through. The partition grid 37 does not affect the rotation of the stirring rod 33. While the stirring rod 33 rotates, the counterweight roller 39 is driven to rotate around the stirring rod 33 through the fixed shaft 38. At the same time, the counterweight roller 39 itself rotates above the partition grid 37 to crush the lumps above the partition grid 37. The crushed lumps can fall into the stirring tank 1 through the partition grid 37. At the same time, the rotation of the counterweight roller 39 can also push some of the lumps, so that when the lumps pass under the water inlet pipe 2, they are wetted by the water flowing down the water inlet pipe 2, making the lumps easier to be crushed.

[0058] A vertical groove 40 is provided on one side of the stirring rod 33 and above the partition grid 37. A guide circular shaft 41 is fixedly connected in the vertical groove 40. A rectangular block 42 is slidably connected to the guide circular shaft 41. An inclined connecting plate 43 is rotatably connected to one side of the rectangular block 42. The bottom of the inclined connecting plate 43 is rotatably connected to the top of the fixed shaft 38.

[0059] like Figure 6 and Figure 7When the counterweight roller 39 rotates above the separating grid 37, if a block is squeezed and broken, the block will lift the counterweight roller 39 from the bottom, and the counterweight roller 39 and the fixed shaft 38 will rotate upward. At the same time, the inclined connecting plate 43 pushes the rectangular block 42 upward, so that the rectangular block 42 moves upward on the guide circular shaft 41. On the contrary, if there is a block under the counterweight roller 39, the counterweight roller 39 rotates downward, so that the rectangular block 42 moves downward. The up and down movement of the rectangular block 42 makes the counterweight roller 39 more stable when it rotates up and down, and at the same time, the force bearing capacity of the stirring rod 33 when driving the counterweight roller 39 to rotate is improved.

[0060] The working principle of a coal mine underground grouting filling rapid slurry making device and method provided by the present invention is as follows:

[0061] When grouting and filling slurry in the coal mine, external water can enter the horizontal pipe 23 through the water injection pipe 24, and then enter the vertical pipe 3 through the horizontal pipe 23, and fall along the vertical pipe 3. When the water flow falls in the vertical pipe 3, it will impact the pressure ring 4, causing the pressure ring 4 to move downward, and the pressure ring 4 drives the positioning sleeve 15 and the positioning convex rod 17 to move downward, and the positioning convex rod 17 drives the transverse connecting rod 18 and the positioning clamping shaft 19 to move downward. The bottom of the positioning clamping shaft 19 contacts the surface of the spherical valve core 5 and cannot move further downward. At this time, the positioning spring 16 contracts and does not affect the downward movement of the pressure ring 4.

[0062] During the downward movement of the pressure ring 4, the driving connecting rod 11 will be driven to move downward synchronously, and the driving connecting rod 11 will drive the lifting connecting rod 10 to move downward. When the lifting connecting rod 10 moves downward, the rotating ring 8 is driven to rotate counterclockwise through the adjusting connecting rod 9. The rotating ring 8 drives the spherical valve core 5 to rotate counterclockwise on the pressure ring 4 through the rotating rod 7. The spherical valve core 5 drives the water injection hole 6 to rotate until the water injection hole 6 rotates and aligns with the vertical pipe 3 in the same vertical direction. The positioning spring 16 stretches and presses down the positioning protrusion 17, and the positioning The convex rod 17 drives the transverse connecting rod 18 and the positioning clamping shaft 19 to move downward, so that the positioning clamping shaft 19 moves downward into the water injection hole 6, and the spherical valve core 5 is positioned to prevent the spherical valve core 5 from rotating, so that the water flow can smoothly pass through the water injection hole 6 when passing through the inner wall of the vertical tube 3. At the same time, when the transverse connecting rod 18 moves downward, it will also pull the movable plunger 27 through the connecting rope 28, and the movable plunger 27 will shrink into the fixed sleeve 25, and pull the elastic rope 29, so that the elastic rope 29 stretches;

[0063] After the water injection is completed, the input of external water flow is stopped. At this time, the water flow no longer impacts the pressure ring 4 downward, and the transverse connecting rod 18 is no longer subjected to downward pressure. At this time, the elastic drawstring 29 contracts and pulls the movable plunger 27 to the outside of the fixed sleeve 25. When the movable plunger 27 moves, it drives the connecting drawstring 28 to move together. The connecting drawstring 28 pulls the transverse connecting rod 18 upward, and the transverse connecting rod 18 drives the positioning card shaft 19 to move upward, so that the positioning card shaft 19 is separated from the inside of the water injection hole 6, and the spherical valve core 5 is no longer positioned.

[0064] At this time, the lifting spring 14 stretches and drives the pressure ring 4 to move upward, and the pressure ring 4 drives the driving connecting rod 11 to move upward synchronously. The end of the driving connecting rod 11 located outside the vertical tube 3 drives the lifting connecting rod 10 to move upward. The lifting connecting rod 10 moves upward and drives the rotating ring 8 to rotate clockwise through the adjusting connecting rod 9. The rotating ring 8 drives the spherical valve core 5 to rotate clockwise in the spherical end 301 through the rotating rod 7, so that the water injection hole 6 and the vertical tube 3 are misaligned. At this time, the spherical valve core 5 closes the spherical end 301, so that when the material is input through the material input pipe 31, the dust generated cannot pass through the spherical end 301, so as to prevent the dust from entering the water injection pipe 24, and prevent the dust from entering the water injection pipe 24 and being adsorbed by the water attached to the wall of the water injection pipe 24 to produce condensation, thereby effectively preventing the formation of lumps in the water injection pipe 24 and affecting the flow of water.

[0065] Water and materials are respectively input into the stirring tank 1 through the material input pipe 31 and the water inlet pipe 2, and the stirring motor 32 is used to drive the stirring rod 33 and the stirring shaft 34 to rotate, so as to mix the materials and water and complete the slurrying.

[0066] Compared with the related art, the invention provides a coal mine underground grouting filling rapid slurry making device and method thereof, which has the following beneficial effects:

[0067] The present invention sets a spherical end 301 on the vertical tube 3, and cooperates with the rotatable spherical valve core 5 inside the spherical end 301, so that the water flow impacts the pressure ring 4 during water injection, and the downward movement of the pressure ring 4 eventually drives the spherical valve core 5 to rotate, so that the vertical tube 3 and the water injection hole 6 are aligned, and the water flow can complete the water injection through the spherical end 301. After the water injection is completed, the spring 14 is lifted to drive the pressure ring 4 to move upward, and the upward movement of the pressure ring 4 eventually drives the spherical valve core 5 to rotate, so that the water injection hole 6 and the vertical tube 3 are staggered, and the spherical end 301 is closed to prevent dust generated when injecting materials through the material input pipe 31 from entering the water injection pipe 24, and prevent dust from entering the water injection pipe 24 and being adsorbed by water attached to the pipe wall of the water injection pipe 24 to produce condensation, thereby affecting the water flow through the water injection pipe 24.

[0068] The above shows and describes 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, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A rapid slurry making device for grouting and filling in coal mines, comprising a stirring tank (1), It is characterized in that The top of the mixing tank (1) is fixedly connected to a water inlet pipe (2), a vertical pipe (3) is installed above the water inlet pipe (2) via a flange, a spherical end (301) is provided on the vertical pipe (3), a cylindrical extension end (302) is provided on the vertical pipe (3) and located above the spherical end (301), a pressure ring (4) that can move up and down is provided in the cylindrical extension end (302), a rotatable spherical valve core (5) is provided in the spherical end (301), and a water injection hole (6) is provided on the spherical valve core (5); The spherical valve core (5) is fixedly connected to a rotating rod (7), one end of the rotating rod (7) and located outside the spherical end (301) is fixedly connected to a rotating ring (8), the outer surface of the rotating ring (8) is fixedly connected to an adjusting link (9), the end of the adjusting link (9) away from the rotating ring (8) is rotatably connected to a lifting link (10), a driving link (11) is fixedly connected to the center position of the top of the pressure ring (4), one end of the driving link (11) passes through the top of the vertical tube (3) and extends to the outside of the vertical tube (3), the end of the driving link (11) located outside the vertical tube (3) is bent downward and fixedly connected to the lifting link (10), and is used to drive the lifting link (10) to move up and down.

2. A coal mine underground grouting filling rapid slurry making device according to claim 1, It is characterized in that The pressure ring (4) is fixedly connected with a connecting block (12) on both sides, and a vertical guide rod (13) is fixedly connected inside the columnar expansion end (301) and on both sides of the pressure ring (4). The vertical guide rod (13) and the connecting block (12) are slidably connected to realize the up and down movement of the pressure ring (4). A lifting spring (14) is sleeved on the vertical guide rod (13), and the top of the lifting spring (14) is fixedly connected to the bottom of the connecting block (12).

3. A rapid grouting device for underground grouting in coal mines according to claim 2, It is characterized in that The bottom of the pressure ring (4) is fixedly connected to a positioning sleeve (15), a positioning spring (16) is fixedly connected inside the positioning sleeve (15), a positioning convex rod (17) is fixedly connected to the bottom of the positioning spring (16), a transverse connecting rod (18) is fixedly connected to the bottom of the positioning convex rod (17), two positioning clamping shafts (19) are fixedly connected to the bottom of the transverse connecting rod (18), and the bottom of the positioning clamping shaft (19) is located in the water injection hole (6).

4. A rapid grouting device for underground grouting and filling in coal mines according to claim 3, It is characterized in that One end of the adjusting link (9) passes through the spherical end (301) and extends to the outside of the spherical end (301); one end of the adjusting link (9) located outside the spherical end (301) is fixedly connected to the center of the rotating ring (8); a limiting plate (20) is fixedly connected to the outer surface of the cylindrical extension end (302); a limiting groove (21) is provided on the lifting link (10); the limiting groove (21) and the limiting plate (20) are slidably connected; one end of the limiting plate (20) is fixedly connected to the limiting protrusion (22).

5. A rapid grouting device for underground grouting and filling in coal mines according to claim 3, It is characterized in that A horizontal tube (23) is fixedly connected to one side of the vertical tube (3) and located above the columnar expansion end (302); a water injection tube (24) is fixedly connected to one end of the horizontal tube (23); a fixing sleeve (25) is fixedly connected inside the horizontal tube (23); and a curved guide tube (26) is fixedly connected to one end of the fixing sleeve (25) and located inside the vertical tube (3).

6. A rapid slurry making device for grouting filling in coal mines according to claim 5, It is characterized in that A movable plunger (27) is movably connected inside the fixed sleeve (25), one end of the movable plunger (27) is fixedly connected to a connecting rope (28), and the other end is fixedly connected to an elastic rope (29), a connecting bracket (30) is fixedly connected inside the horizontal tube (23), one end of the elastic rope (29) away from the movable plunger (27) is fixedly connected to the connecting bracket (30), one end of the connecting rope (28) passes through the curved guide tube (26) and the pressure ring (4) in sequence and is fixedly connected to the transverse connecting rod (18), so as to drive the transverse connecting rod (18) to move up and down.

7. A rapid grouting device for underground grouting and filling in coal mines according to claim 1, It is characterized in that The top of the stirring tank (1) is fixedly connected to a material input pipe (31) and a stirring motor (32); the output end of the stirring motor (32) and located inside the stirring tank (1) is fixedly connected to a stirring rod (33); the outer surface of the stirring rod (33) is fixedly connected to a plurality of stirring shafts (34); the bottom of the stirring tank (1) is fixedly connected to a material discharge pipe (35); and a solenoid valve (36) is provided on the discharge pipe (35).

8. A rapid grouting device for underground grouting and filling in coal mines according to claim 7, It is characterized in that The inner surface of the stirring tank (1) is fixedly connected to a partition grid frame (37); the bottom of the stirring rod (33) passes through the partition grid frame (37) and extends to the outside of the partition grid frame (37); the outer surface of the stirring rod (33) is rotatably connected to a fixed shaft (38) located above the partition grid frame (37); one end of the fixed shaft (38) is rotatably connected to a counterweight roller (39).

9. A rapid grouting device for underground grouting in coal mines according to claim 8, It is characterized in that A vertical groove (40) is provided on one side of the stirring rod (33) and above the partition grid (37); a guide circular shaft (41) is fixedly connected in the vertical groove (40); a rectangular block (42) is slidably connected to the guide circular shaft (41); an inclined connecting plate (43) is rotatably connected to one side of the rectangular block (42); and the bottom of the inclined connecting plate (43) is rotatably connected to the top of the fixed shaft (38).

10. A slurry making method for a rapid slurry making device for grouting filling in underground coal mines according to claim 9, It is characterized in that The following steps are involved: S1. External water enters the vertical tube (3) through the water injection pipe (24) and the horizontal tube (23), and impacts the pressure ring (4). The pressure ring (4) drives the positioning sleeve (15) and the positioning protruding rod (17) to move downward. The positioning protruding rod (17) drives the transverse connecting rod (18) and the positioning clamping shaft (19) to move downward. The bottom of the positioning clamping shaft (19) contacts the surface of the spherical valve core (5). When the pressure ring (4) moves downward, the driving connecting rod (11), the lifting connecting rod (10) and the adjusting connecting rod (9) are driven to move downward. The downward movement of the adjusting connecting rod (9) drives the rotating ring (8) to rotate counterclockwise. The rotating ring (8) drives the spherical valve core (5) to rotate counterclockwise on the pressure ring (4) through the rotating rod (7) until the water injection hole (6) rotates and aligns with the vertical tube (3) in the same vertical direction. The positioning spring (16) stretches and presses down the positioning protruding rod (17), and drives the transverse connecting rod (18) and the positioning clamping shaft (19) to move downward, so that the positioning clamping shaft (19) moves downward into the water injection hole (6) to position the spherical valve core (5). When the water flows through the inner wall of the vertical tube (3), it can smoothly pass through the water injection hole (6) and finally enter the interior of the mixing tank (1). S2. The external device inputs the material into the stirring tank (1) through the material input pipe (31), and uses the stirring motor (32) to drive the stirring rod (33) and the stirring shaft (34) to rotate, so as to mix the material and water and complete the pulping.

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