Aquifer grouting equipment, grouting method and application in coal mining

Abstract

The invention belongs to the technical field of coal mine grouting, and particularly relates to aquifer grouting equipment, a grouting method and application in coal mining, the aquifer grouting equipment comprises a shell assembly, a stirring assembly is arranged at the top of the shell assembly, and a plurality of adjusting assemblies are evenly arranged on the inner wall of the shell assembly; a stirring cavity is formed in the top of the shell; the stirring assembly comprises a top frame, and the center of the top frame is rotationally connected with a main shaft; the adjusting assembly comprises a plurality of adjusting frames, a plurality of filtering holes are evenly formed in the adjusting frames, sliding grooves are formed in the ends, close to the inner wall of the stirring cavity, of the adjusting frames, and moving plates are connected into the sliding grooves in a sealed and sliding mode. The equipment is high in grouting material stirring efficiency, good in stirring effect, capable of meeting the actual slurry production requirement, high in stability, high in adaptability, easy to operate, capable of meeting the stirring requirement for different grouting materials and capable of meeting the large-batch production requirement.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mine grouting, in particular to aquifer grouting equipment, a grouting method and applications in coal mining. Background Art

[0002] Coal seam grouting equipment is equipment used for grouting operations underground in coal mines. Its main function is to inject slurry into the cracks and pores of the coal seam to achieve the purpose of water blocking or reinforcing the coal seam. The grouting materials (such as cement, bentonite, etc.) need to be mixed with water or other additives to form a uniform slurry. Therefore, the design and function of the mixing equipment for the grouting materials are to ensure that the grouting materials can be mixed quickly and evenly to meet the grouting needs of different projects.

[0003] Chinese invention patent CN114109440A discloses a hydraulic grouting equipment for grouting transformation of loose aquifers in coal mines, comprising a machine platform, a grouting bin and a bidirectional hydraulic grouting mechanism; the grouting bin is installed on the top of the machine platform, and the bidirectional hydraulic grouting mechanism is installed in the grouting bin; the bidirectional hydraulic grouting mechanism is connected to a slurry outlet valve; the slurry outlet valve is installed on the side wall of the grouting bin; the grouting equipment has low grouting efficiency and poor grouting effect.

[0004] Chinese invention patent CN110242326B discloses a grouting device for tunnel mud, including a stirring tank, a grouting tank and a pushing assembly, wherein a plurality of stirring rods and two rollers are arranged in the stirring tank, and a protrusion is arranged on the roller; the grouting tank is located below the stirring tank and is connected to the stirring tank through a bellows; the pushing assembly pushes the side wall of the grouting tank to tilt to realize grouting; the grouting equipment is difficult to operate and has low operating accuracy.

[0005] Since the concentration of the grouting material at different heights inside the stirring chamber is different, the grouting material inside the stirring chamber is subjected to different forces during stirring, and the stirring efficiency is different, which in turn affects the subsequent stirring quality and stirring effect.

[0006] In addition, during the mixing process, part of the grouting material is easily adhered to the inner wall of the mixing chamber, which not only reduces the mixing quality, but also causes pollution to the subsequent mixing of the grouting material.

[0007] While using an adjusting frame in conjunction with a stirring blade to achieve a joint stirring process of the grouting material, the outer surface of the adjusting frame and the inside of the filter holes are prone to blockage of some grouting material, which will affect the stirring efficiency and stirring quality, thereby reducing the slurry quality. Summary of the invention

[0008] In view of the above problems, the present invention provides aquifer grouting equipment, a grouting method and applications in coal mining.

[0009] To achieve the above object, the present invention provides the following technical solution: an aquifer grouting device, comprising a shell assembly, a stirring assembly is provided on the top of the shell assembly, and a plurality of adjustment assemblies are evenly provided on the inner wall of the shell assembly: The shell assembly comprises a shell, and a stirring chamber is formed on the top of the shell; The stirring assembly includes a top frame, the center of which is rotatably connected to a main shaft; The adjustment component includes a plurality of adjustment frames, a plurality of filter holes are evenly arranged inside the adjustment frames, a sliding groove is opened on the end of the adjustment frame near the inner wall of the stirring chamber, a movable plate is sealingly and slidably connected inside the sliding groove, a plurality of fixed plates are evenly arranged on the inner wall of the stirring chamber, two electromagnetic blocks are symmetrically arranged on the side of the fixed plate away from the adjustment frame, an elastic pulling block is arranged at the other end of the electromagnetic block through a tension sensor, a magnetic end block is arranged at the other end of the elastic pulling block, and a plurality of arc-shaped working blocks are symmetrically arranged on the side of the adjustment frame near the fixed plate through a hinge seat.

[0010] The present application further achieves the stirring effect of the grouting material inside the stirring chamber and ensures the stirring quality by adjusting the inclination angle of the adjustment frame; and when the grouting material is butted or blocked, the inclination of the adjustment frame is used to achieve rapid discharge of the grouting material; after the stirring is completed, the moving plate drives the elastic scraper to scrape and clean the inner wall of the stirring chamber; and when the cleaning is completed, the collision between the adjustment frame and the fixed plate further improves the self-cleaning effect, and the adaptability is stronger and the adjustability is better.

[0011] Preferably, one side of the outer shell is connected to a discharge pipe, the liquid inlet end of the discharge pipe passes through the outer shell and is connected to the inner bottom of the stirring chamber, the liquid outlet end of the discharge pipe is connected to a control valve, the output end of the control valve is connected to the input end of the grouting pump, a plurality of feed ports are formed between the top frame and the top of the stirring chamber, and a control panel is provided on one side of the outer shell, and the control panel electrically controls each electrical component.

[0012] Preferably, the bottom of the top frame is fixedly connected to the top of the shell, a mounting plate is provided on the top of one side of the top frame, a driving motor is provided on the top of the mounting plate, a supporting frame is provided on the side wall of the mounting plate, and the side wall of the supporting frame is fixedly connected to the side wall of the driving motor, a driving wheel is provided at the output end of the driving motor, a driven wheel is provided on the top outer surface of the main shaft, a plurality of transmission belts are evenly connected to the side walls of the driving wheel and the driven wheel, and protective covers are provided on the outer surfaces of the driving wheel and the driven wheel.

[0013] Preferably, a connecting frame is provided at the top center of the top frame, and a middle hole is opened at the center of the top frame and the connecting frame. A bearing frame is provided on the side wall of the connecting frame and inside the middle hole. The inner wall of the bearing frame is rotatably connected to the outer surface of the main shaft. A rotating wheel is provided at the bottom of the main shaft, and a plurality of stirring blades are evenly provided on the outer surface of the rotating wheel. The stirring blades are inclined and the rotation direction is from the adjustment frame end to the fixed plate end.

[0014] Preferably, the plurality of adjustment frames are evenly distributed on the inner wall end of the stirring chamber, the interior of the movable plate is evenly provided with a plurality of docking holes, the filter holes match the docking holes, the side walls of the movable plate are evenly provided with a plurality of return springs, and the other end of the return spring is fixedly connected to the inner wall of the sliding groove.

[0015] Preferably, an elastic scraper is provided at one end of the movable plate away from the main shaft, and the elastic scraper matches the inner wall of the stirring chamber. A trapezoidal hole is provided at one end of the movable plate close to the main shaft, and the trapezoidal hole is an isosceles trapezoidal structure. A hanging rope is provided at the inner top of the sliding groove, and a counterweight rod is provided at the bottom of the hanging rope, and the outer surface of the counterweight rod matches the inner wall of the trapezoidal hole.

[0016] Preferably, an I-shaped hole is opened inside the fixed plate, the inner wall of the I-shaped hole is sealingly and slidably connected to the outer surface of the arc-shaped work block, the arc-shaped work block is slidably connected between two elastic pulling blocks, and the end of the arc-shaped work block away from the adjustment frame is fixedly connected to the side wall of the magnetic end block, the tension sensor is used to detect the tension value applied to the elastic pulling block, the end surfaces of the electromagnetic block and the magnetic end block facing each other have different magnetic properties, and the arc-shaped work block matches the inner wall of the stirring chamber.

[0017] The grouting method of the aquifer grouting equipment as described comprises the following steps: S1, the main shaft rotates and stirs and mixes the grouting material inside the stirring chamber, and the grouting material collides with the side wall of the adjustment frame; S2, when the grouting material accumulates on one side of the adjustment frame or the filter hole is blocked, the tension value detected by the tension sensor at the corresponding position increases, the magnetic end block drives the arc-shaped block to move away from the fixed plate end, the adjustment frame tilts, the extrusion force applied by the counterweight rod to the side wall of the trapezoidal hole increases, and the movable plate moves along the sliding groove away from the main shaft end; S3, after the grouting material is stirred and mixed, the arc-shaped work block drives the adjustment frame to move tiltedly. When the tension value detected by the tension sensor on one side increases, the arc-shaped work block drives the adjustment frame to increase its tilt angle, the extrusion force applied by the counterweight rod to the side wall of the trapezoidal hole increases, and the sliding distance of the movable plate along the sliding groove increases; S4. When the electromagnetic block is powered off, the adjustment frame collides with the fixed plate, the extrusion force applied by the counterweight rod to the trapezoidal hole changes continuously, and the movable plate moves back and forth continuously inside the sliding groove.

[0018] The application of aquifer grouting equipment as described in coal mining.

[0019] Compared with the prior art, the present invention has the following beneficial effects: 1. This application sets up the mutual coordination of components such as the shell assembly, the stirring assembly and the adjustment assembly. The equipment has high stirring efficiency and good stirring effect for the grouting material, which meets the actual slurry production needs. It has high stability, strong adaptability and simple operation. It can realize the stirring requirements of different grouting materials and meet the needs of mass production.

[0020] 2. This application sets up an adjustment frame and an arc-shaped work block and other components to cooperate with each other. During the mixing process of the grouting material, the equipment can also drain and clear the accumulation or blockage of the grouting material, thereby ensuring stable and efficient mixing of the grouting material and avoiding affecting the quality of the subsequent slurry.

[0021] 3. The present application sets up the coordination between the stirring chamber and the electromagnetic block and other components. After the stirring is completed, the grouting material attached to the inner wall of the stirring chamber can be scraped and cleaned by means of the reciprocating tilting movement of the adjustment frame. At the same time, the scraping force can be adaptively adjusted to ensure the cleaning quality.

[0022] 4. This application sets up the cooperation between the fixed plate, the movable plate and other components. After scraping, the device realizes the self-cleaning process of the adjusting frame and the movable plate under the action of the collision force of the adjusting frame and the fixed plate to meet the cleaning requirements and improve the recycling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure from another viewing angle of the present invention; Figure 3 It is a schematic diagram of the internal three-dimensional structure of the present invention; Figure 4 for Figure 3 The enlarged schematic diagram at A in the middle; Figure 5 This is a schematic diagram of the internal three-dimensional structure of the present invention when viewed from the front at a 45-degree angle; Figure 6 for Figure 5 The enlarged schematic diagram of point B in the middle; Figure 7 It is a schematic diagram of the internal three-dimensional structure of the present invention as viewed from above; Figure 8 for Figure 7The enlarged schematic diagram at C in the middle; Fig. 9 It is a schematic diagram of the explosion three-dimensional structure of the present invention; Fig.10 It is a schematic diagram of the exploded three-dimensional structure of the regulating component of the present invention.

[0024] In the figure: 1. Shell assembly; 101. Shell; 102. Stirring chamber; 103. Discharge pipe; 104. Control valve; 105. Feed inlet; 106. Control panel; 2. Stirring assembly; 201. Top frame; 202. Mounting plate; 203. Support frame; 204. Driving motor; 205. Driving wheel; 206. Driven wheel; 207. Driving belt; 208. Protective cover; 209. Connecting frame; 210. Main shaft; 211. Rotating wheel; 212. Stirring blade; 213. Middle hole; 214, bearing frame; 3, adjustment component; 301, adjustment frame; 302, sliding groove; 303, filter hole; 304, moving plate; 305, elastic scraper; 306, docking hole; 307, trapezoidal hole; 308, reset spring; 309, lifting rope; 310, counterweight rod; 311, fixing plate; 312, I-shaped hole; 313, arc-shaped block; 314, hinged seat; 315, electromagnetic block; 316, tension sensor; 317, elastic pull block; 318, magnetic end block. DETAILED DESCRIPTION

[0025] 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.

[0026] like Figure 1-10 As shown, the aquifer grouting equipment includes a shell component 1. A stirring component 2 is provided on the top of the shell component 1. The stirring component 2 stirs and mixes grouting materials such as cement and water inside the shell component 1 to form a required slurry. A plurality of adjusting components 3 are evenly provided on the inner wall of the shell component 1. The adjusting components 3 work inside the shell component 1 and realize precise adjustment of the stirring.

[0027] The shell assembly 1 includes a shell 101, a stirring chamber 102 is provided at the top of the shell 101, and the required stirring process is carried out inside the stirring chamber 102. A discharge pipe 103 is connected to one side of the shell 101, and the liquid inlet end of the discharge pipe 103 passes through the shell 101 and is connected to the inner bottom of the stirring chamber 102. The liquid outlet end of the discharge pipe 103 is connected to a control valve 104, and the output end of the control valve 104 is connected to the input end of the grouting pump. When the stirring is completed to form slurry, the control valve 104 is opened, the grouting pump is started and suction force is applied, and the slurry inside the stirring chamber 102 is discharged along the discharge pipe 103 to wait for the subsequent grouting process. A plurality of feed ports 105 are formed between the top frame 201 and the top of the stirring chamber 102, and various required grouting materials, generally cement and water, are poured into the stirring chamber 102 in proportion along the feed ports 105. A control panel 106 is provided on one side of the shell 101, and the control panel 106 electrically controls various electrical components.

[0028] The stirring assembly 2 includes a top frame 201, the center of the top frame 201 is rotatably connected to a main shaft 210, the main shaft 210 rotates and stirs and mixes the grouting material inside the stirring chamber 102 to form a slurry, the bottom of the top frame 201 is fixedly connected to the top of the shell 101, a mounting plate 202 is provided on the top of one side of the top frame 201, a driving motor 204 is provided on the top of the mounting plate 202, the mounting plate 202 connects the driving motor 204 and the top frame 201 to each other, a support frame 203 is provided on the side wall of the mounting plate 202, and the side wall of the support frame 203 is fixedly connected to the side wall of the driving motor 204, and the setting of the support frame 203 further improves the working stability of the driving motor 204 A driving wheel 205 is provided at the output end of the driving motor 204, a driven wheel 206 is provided on the top outer surface of the main shaft 210, and the side walls of the driving wheel 205 and the driven wheel 206 are evenly connected with a plurality of transmission belts 207. When the driving motor 204 is started, the driving wheel 205 is driven to rotate, and the driving wheel 205 drives the driven wheel 206 to rotate through the transmission belt 207. A protective cover 208 is provided on the outer surfaces of the driving wheel 205 and the driven wheel 206, and the protective cover 208 wraps and protects the internal driving wheel 205, the driven wheel 206 and the transmission belt 207 to avoid accidental injury to the operator when the driving wheel 205, the driven wheel 206 and the transmission belt 207 are separated.

[0029] A connecting frame 209 is provided at the center of the top of the top frame 201. A middle hole 213 is opened at the center of the top frame 201 and the connecting frame 209. The middle hole 213 is used for the main shaft 210 to pass through. A bearing frame 214 is provided on the side wall of the connecting frame 209 and inside the middle hole 213. The inner wall of the bearing frame 214 is rotatably connected to the outer surface of the main shaft 210. The setting of the bearing frame 214 further improves the stability and safety of the rotation of the main shaft 210. A rotating wheel 211 is provided at the bottom of the main shaft 210. A plurality of stirring blades 212 are evenly arranged on the outer surface of the rotating wheel 211. The stirring blades 212 are inclined and rotate in a direction from the end of the adjustment frame 301 to the end of the fixed plate 311. When the main shaft 210 rotates, the rotating wheel 211 at the bottom drives the plurality of stirring blades 212 to rotate. The stirring blades 212 stir the grouting material inside the stirring chamber 102 and form the required slurry, thereby further improving the stirring efficiency and stirring effect.

[0030] The adjustment component 3 includes multiple adjustment frames 301, and the adjustment frames 301 are each provided with a sliding groove 302 near the inner wall end of the stirring chamber 102. The sliding groove 302 is sealed and slidably connected with a movable plate 304. The movable plate 304 can move back and forth inside the sliding groove 302, thereby improving the stirring efficiency of the grouting material inside the stirring chamber 102. At the same time, the inner wall of the stirring chamber 102 can be scraped and cleaned to avoid excessive grouting material sticking to the inner wall of the stirring chamber 102 and reducing the subsequent stirring quality.

[0031] A plurality of adjustment frames 301 are evenly distributed on the inner wall end of the stirring chamber 102, but the actual position of the adjustment frame 301 can be adjusted according to different stirring requirements, thereby cooperating with the rotation of the main shaft 210 to improve the stirring effect of the grouting material inside the stirring chamber 102. A plurality of filter holes 303 are evenly arranged inside the adjustment frame 301, and a plurality of docking holes 306 are evenly arranged inside the movable plate 304. The filter holes 303 match the docking holes 306, and the grouting material inside the stirring chamber 102 can be moved along the filter holes 303 and the docking holes 306. The overlapping positions of the movable plate 304 are circulated, thereby improving the original mixing quality. At the same time, when the filter hole 303 and the docking hole 306 are blocked, the movable plate 304 moves along the sliding groove 302, thereby clearing and filtering the filter hole 303 and the docking hole 306, which has stronger adaptability and higher stability. A plurality of return springs 308 are evenly arranged on the side walls of the movable plate 304, and the other end of the return spring 308 is fixedly connected to the inner wall of the sliding groove 302. The setting of the return spring 308 further improves the elastic return performance of the movable plate 304.

[0032] An elastic scraper 305 is provided at one end of the movable plate 304 away from the main shaft 210, and the elastic scraper 305 matches the inner wall of the stirring chamber 102. When the elastic scraper 305 and the inner wall of the stirring chamber 102 are squeezed and contacted with each other, the elastic scraper 305 can scrape and clean the inner wall of the stirring chamber 102, thereby improving the cleaning effect of the inner wall of the stirring chamber 102. A trapezoidal hole 307 is provided at one end of the movable plate 304 close to the main shaft 210. The trapezoidal hole 307 is an isosceles trapezoidal structure. The shape of the trapezoidal hole 307 further improves the efficiency and synchronization of the movable plate 304 moving along the sliding groove 302 A suspension rope 309 is provided at the inner top of the sliding groove 302, and a counterweight rod 310 is provided at the bottom of the suspension rope 309. The counterweight rod 310 has a certain weight and has a vertical downward characteristic under the hanging action of the suspension rope 309. The outer surface of the counterweight rod 310 matches the inner wall of the trapezoidal hole 307. When the adjustment frame 301 tilts, the counterweight rod 310 is always in a vertical state under the hanging of the suspension rope 309 and its own weight. The counterweight rod 310 applies a force to the inner wall of the trapezoidal hole 307, and the counterweight rod 310 drives the moving plate 304 to stretch the reset spring 308 and move toward the end away from the main shaft 210.

[0033] A plurality of fixed plates 311 are evenly arranged on the inner wall of the stirring chamber 102. The positions of the fixed plates 311 remain unchanged, and the gaps between the plurality of fixed plates 311 are all equal. Two electromagnetic blocks 315 are symmetrically arranged on one side of the fixed plate 311 away from the adjustment frame 301. The other end of the electromagnetic block 315 is provided with an elastic pull block 317 through a tension sensor 316. The tension sensor 316 is used to detect the tension value exerted on the elastic pull block 317. When the tensile force exerted on the elastic pull block 317 increases, the tension value detected by the tension sensor 316 increases accordingly. A magnetic end block 318 is arranged on the other end of the elastic pull block 317. The end faces of the electromagnetic block 315 and the magnetic end block 318 have different magnetic properties. Therefore, when the current flowing through the electromagnetic block 315 increases, the magnetic force of the electromagnetic block 315 increases and the magnetic attraction force exerted on the magnetic end block 318 increases. The magnetic end block 318 squeezes the elastic pull block 317 to move toward the end close to the fixed plate 311.

[0034] A plurality of arc-shaped blocks 313 are symmetrically arranged on one side of the adjustment frame 301 close to the fixed plate 311 through a hinge seat 314. An I-shaped hole 312 is provided inside the fixed plate 311. The inner wall of the I-shaped hole 312 is sealed and slidably connected to the outer surface of the arc-shaped block 313. The end of the arc-shaped block 313 away from the adjustment frame 301 is fixedly connected to the side wall of the magnetic end block 318. The arc-shaped block 313 connects the adjustment frame 301 and the magnetic end block 318. At the same time, the tilt vibration of the adjustment frame 301 can be realized by cooperating with the function of the hinge seat 314. The arc-shaped block 313 is slidably connected between the two elastic pull blocks 317. The arc-shaped block 313 is subjected to the same force in the up and down directions, and the arc-shaped block 313 can drive the adjustment frame 301 and the magnetic end block 318 to move synchronously and stably. The arc-shaped block 313 matches the inner wall of the stirring chamber 102. Therefore, when the arc-shaped block 313 drives the adjustment frame 301 to move on the inner wall of the stirring chamber 102, the moving position of the adjustment frame 301 is always at the inner wall end of the stirring chamber 102, further improving the accuracy of the movement adjustment of the adjustment frame 301.

[0035] Since the concentration of the grouting material at different heights inside the stirring chamber 102 is different, the grouting material inside the stirring chamber 102 is subjected to different forces during stirring, and the stirring efficiency is different, which will affect the subsequent stirring quality and stirring effect; and during the stirring process, part of the grouting material is easily adhered to the inner wall of the stirring chamber 102, which not only reduces the stirring quality, but also causes pollution to the subsequent stirring of the grouting material; the above-mentioned use of the adjustment frame 301 in conjunction with the stirring blades 212 to realize the joint stirring process of the grouting material, so the outer surface of the adjustment frame 301 and the inside of the filter hole 303 are easily blocked by part of the grouting material, and the grouting material will affect the stirring efficiency and stirring quality, thereby reducing the slurry quality.

[0036] In order to solve the above problems, when the aquifer grouting equipment is actually used, first, various grouting materials are poured into the stirring chamber 102 along the feed port 105. Specific grouting materials include cement and water, etc. Then, the control panel 106 controls the drive motor 204 to start and drive the driving wheel 205 to rotate. The driving wheel 205 drives the driven wheel 206 to rotate through the transmission belt 207. The driven wheel 206 drives the main shaft 210 to rotate inside the bearing frame 214. The main shaft 210 drives multiple stirring blades 212 to rotate through the rotating wheel 211 at the bottom. The stirring blades 212 rotate inside the stirring chamber 102 and realize stirring and mixing of the internal grouting materials, thereby realizing the stirring and mixing process, and finally obtaining the required slurry.

[0037] At the same time, as the rotating wheel 211 drives the stirring blade 212 to rotate continuously, the stirring blade 212 drives the grouting material inside the stirring chamber 102 to rotate. The grouting material is thrown to the inner wall of the stirring chamber 102 under the action of centrifugal force and rotates accordingly. When the grouting material collides with the side wall of the adjustment frame 301, the impact force between the two is used to collide and crush the block structure inside the grouting material. At the same time, this process is used to provide a lateral cutting force to the grouting material, and cooperate with the axial rotation force exerted on the grouting material inside the stirring chamber 102 to jointly improve the stirring and mixing effect, thereby avoiding the problem that the block structure in the grouting material is stirred for a long time but cannot be crushed and mixed.

[0038] At the same time, in the initial state, the adjustment frame 301 is in a vertical state, so the counterweight rod 310 will not exert a force on the inner wall of the trapezoidal hole 307 under its own weight and the hanging rope 309, the movable plate 304 is in the initial position, and there is a gap between the elastic scraper head 305 and the inner wall of the stirring chamber 102, the filter hole 303 and the docking hole 306 are both in the initial docking position, and the grouting material is continuously rotating. The grouting material can pass through the overlapping positions of multiple filter holes 303 and docking holes 306 through the adjustment frame 301, thereby realizing the filtering and stirring of the grouting material, improving the mixing efficiency of the grouting material, and ensuring the mixing effect of the grouting material.

[0039] In the initial state, the electromagnetic block 315 is in the initial current state. The electromagnetic block 315 applies magnetic attraction to the magnetic end block 318 and the elastic force of the elastic pull block 317 drives the magnetic end block 318 to the initial position. Under the action of the impact force applied by the grouting material to the adjustment frame 301, the adjustment frame 301 applies a force to the arc-shaped work block 313. The arc-shaped work block 313 correspondingly drives the magnetic end block 318 to apply a tension value to the elastic pull block 317. The tension value detected by the tension sensor 316 is at the initial value.

[0040] When the tension values ​​detected by multiple tension sensors 316 at a certain position are equal and greater than the preset tension value, it means that the concentration of the grouting material at this position is too high, and it needs to be impacted and crushed quickly and concentratedly. Therefore, the control panel 106 controls multiple electromagnetic blocks 315 to increase the current and magnetism. The magnetic attraction of the electromagnetic block 315 to the magnetic end block 318 increases, and the magnetic end block 318 squeezes the elastic pulling block 317 and moves toward the end close to the fixed plate 311. The magnetic end block 318 drives the arc block 313 to move toward the end close to the fixed plate 311, and the arc block 313 drives the adjustment frame 301 at the other end to move away from the fixed plate 311. The adjustment frame 301 applies a reverse thrust to the grouting material moved to the side wall end of the adjustment frame 301, thereby further improving the collision and crushing effect of the grouting material, and correspondingly improving the stirring and mixing effect of the grouting material inside the stirring chamber 102, with stronger adaptability and higher stirring effect.

[0041] When the grouting material accumulates on one side of the upper or lower side of the adjustment frame 301, or the filter hole 303 on one side of the upper or lower side of the adjustment frame 301 is blocked, as the grouting material in the stirring chamber 102 continues to rotate, the thrust on the adjustment frame 301 on this side increases, and the tension value detected by the tension sensor 316 at the corresponding position increases. For example, when the upper side wall of the adjustment frame 301 is subjected to an increased thrust by the grouting material or the filter hole 303 is blocked, the tension value detected by the multiple tension sensors 316 above the adjustment frame 301 increases, and the control panel 106 controls the current of the upper electromagnetic block 315 to decrease, and the magnetic attraction force applied by the electromagnetic block 315 to the magnetic end block 318 is reduced. Under the elastic force of the elastic pull block 317, the magnetic end block 318 is driven to move away from the fixed plate 311, and the magnetic end block 318 drives the arc working The block 313 moves, and the other end of the arc-shaped block 313 drives the upper end of the adjusting frame 301 to move toward the fixed plate 311 through the hinge seat 314, while the current of the electromagnetic block 315 below the adjusting frame 301 remains unchanged, and the positions of the magnetic end block 318 and the arc-shaped block 313 below the adjusting frame 301 do not change. The adjusting frame 301 is tilted inside the stirring chamber 102, and the distance between the upper side of the adjusting frame 301 and the fixed plate 311 is smaller than the distance between the lower side of the adjusting frame 301 and the fixed plate 311. Under the effect of the tilt, the grouting materials accumulated on the upper side of the adjusting frame 301 slide upward under the stirring action of the stirring blades 212 and finally break away from the side wall of the adjusting frame 301, thereby achieving a rapid stirring and mixing effect on the grouting materials, and avoiding the grouting materials from accumulating on the side wall of the adjusting frame 301 and affecting the stirring effect.

[0042] At the same time, when the adjustment frame 301 is tilted, under the hanging effect of the hanging rope 309 on the counterweight rod 310 and the self-weight of the counterweight rod 310, the counterweight rod 310 is always in a vertical state, and the force exerted by the counterweight rod 310 on the inner wall of the trapezoidal hole 307 increases. Under the thrust of the counterweight rod 310, the movable plate 304 is driven to stretch multiple return springs 308 along the sliding groove 302 and move toward the end away from the main shaft 210. The movable plate 304 moves and drives multiple docking holes 306 to move, and the overlapping area of ​​the docking holes 306 and the filter holes 303 increases. The content of the grouting material after filtering through the filter holes 303 and the docking holes 306 increases, and the clearing effect of the filter holes 303 is further achieved, ensuring that the grouting material can be stably and continuously stirred and mixed.

[0043] When the grouting materials inside the stirring chamber 102 are stirred and mixed to form slurry, the control panel 106 controls the opening of the control valve 104 and starts the liquid pump. The slurry inside the stirring chamber 102 is continuously discharged along the discharge pipe 103 under the stirring of the stirring blades 212 and the suction action of the liquid pump, and finally enters the stirring tank to wait for the subsequent grouting process.

[0044] Afterwards, since a large amount of slurry is easily attached to the inner wall of the stirring chamber 102, if it cannot be quickly removed, it will affect the mixing and stirring of the subsequent grouting materials. After the slurry in the stirring chamber 102 is discharged, the control panel 106 controls the current of the multiple electromagnetic blocks 315 to increase, and the magnetic attraction force applied by the electromagnetic block 315 to the magnetic end block 318 increases and drives the magnetic end block 318 to move toward the end close to the fixed plate 311, and the magnetic end block 318 drives the arc-shaped block 313 to squeeze the elastic pull block 317 to move, and the arc-shaped block 313 drives the adjustment frame 301 to move away from the fixed plate 311. At this time, the initial moving distance of the upper arc-shaped block 313 is greater than the initial moving distance of the lower arc-shaped block 313, then under the hinged action of the hinged seat 314, the adjustment frame 301 is driven to be in a tilted state, and the distance between the upper side of the adjustment frame 301 and the fixed plate 311 is greater than the distance between the lower side of the adjustment frame 301 and the fixed plate 311, further improving the cleaning effect of the inner wall of the stirring chamber 102.

[0045] At the same time, since the adjustment frame 301 is in an inclined state, it is in a vertical state under the gravity of the counterweight rod 310 and the hanging effect of the suspension rope 309. The extrusion force exerted by the counterweight rod 310 on the trapezoidal hole 307 increases, and the counterweight rod 310 drives the movable plate 304 to move along the sliding groove 302 away from the end of the main shaft 210. The movable plate 304 drives the elastic scraper head 305 at the end to squeeze and contact the inner wall of the stirring chamber 102. After that, the adjustment frame 301 continuously moves back and forth at the inner wall end of the stirring chamber 102, and the inner wall of the stirring chamber 102 is scraped and cleaned with the help of the elastic scraper head 305, thereby improving the cleanliness of the inner wall of the stirring chamber 102 and avoiding affecting the mixing and stirring of subsequent grouting materials.

[0046] When the adhesion of the grouting material on the inner wall of the stirring chamber 102 is too large, the adjustment frame 301 and the grouting material are squeezed and collided. At this time, the tension value detected by the tension sensor 316 increases, and the control panel 106 controls the squeezing force applied by the upper electromagnetic block 315 at the corresponding position to continue to increase. Then, the magnetic attraction of the electromagnetic block 315 on the magnetic end block 318 increases and drives the magnetic end block 318 to move toward the end close to the fixed plate 311. The magnetic end block 318 drives the arc block 313 to move. The arc block 313 drives the adjustment frame 301 to increase its inclination angle through the hinge seat 314, and the thrust applied by the counterweight rod 310 to the side wall of the trapezoidal hole 307 increases. The moving plate 304 increases the distance moved along the sliding groove 302 away from the main shaft 210 end. The moving plate 304 drives the elastic scraper 305 to increase the scraping force of the grouting material, further improving the scraping and cleaning effect of the inner wall of the stirring chamber 102, with stronger adaptability and higher cleaning effect.

[0047] When the adjustment frame 301 moves to the maximum distance, the current of the electromagnetic block 315 gradually decreases, and the adjustment frame 301 continuously moves in the opposite direction for scraping. At this time, the current of the upper electromagnetic block 315 is less than the current of the lower electromagnetic block 315, and the distance between the upper side of the adjustment frame 301 and the fixed plate 311 is less than the distance between the lower side of the adjustment frame 301 and the fixed plate 311. The adjustment frame 301 moves in the opposite direction and scrapes and cleans the inner wall of the stirring chamber 102. When the current of the electromagnetic block 315 decreases to zero, the elastic force of the elastic pull block 317 drives the magnetic end block 318 to move in the opposite direction to the maximum distance, and the magnetic end block 318 drives the arc-shaped work block 313 to move in the opposite direction to the maximum distance. The arc-shaped work block 313 drives the adjustment frame 301 to move in the opposite direction and collide with the side wall of the fixed plate 311. Under the action of the collision force, the grouting material attached to the outer surface of the adjustment frame 301 is vibrated and cleaned, thereby improving the cleaning effect of the adjustment frame 301.

[0048] At the same time, during the vibration of the adjustment frame 301, the counterweight rod 310 continuously swings back and forth inside the trapezoidal hole 307 under the action of inertia, and the thrust applied by the counterweight rod 310 to the side wall of the trapezoidal hole 307 continuously changes, then the counterweight rod 310 drives the moving plate 304 and cooperates with the reset spring 308 to continuously move back and forth inside the sliding groove 302, the moving plate 304 drives the elastic scraper 305 to continuously move, and the elastic scraper 305 continuously collides with the inner wall of the stirring chamber 102, further improving the vibration cleaning effect of the grouting material on the outer surface of the elastic scraper 305 and the moving plate 304, and at the same time, the moving plate 304 continuously drives the docking hole 306 to move during the movement process, and the overlapping area of ​​the docking hole 306 and the filter hole 303 continuously changes, then the grouting material blocked in the filter hole 303 is separated in the process of the continuous change of the overlapping area, thereby effectively realizing the self-cleaning process, and continuously repeating the above process to achieve the cleaning effect of the inner wall of the stirring chamber 102 and the adjustment frame 301 itself, with stronger adaptability and better self-cleaning effect.

[0049] The grouting material scraped off the inner wall of the stirring chamber 102 falls to the bottom of the stirring chamber 102, and clean water is introduced into the inside along the feed port 105, connecting the discharge pipe 103 with the impurity pool, thereby realizing the clean discharge of the grouting material. After the cleaning is completed, new grouting material is continuously poured into the feed port 105, and the above process is repeated to realize the process of stirring and mixing the subsequent grouting materials to form the required slurry.

[0050] The equipment has high stirring efficiency and good stirring effect for the grouting material, which meets the actual slurry production needs, has high stability, strong adaptability, and is easy to operate. It can realize the stirring needs of different grouting materials and meet the needs of mass production. At the same time, during the stirring process of the grouting material, it can also drain and clear the accumulation or blockage of the grouting material to ensure stable and efficient mixing and stirring of the grouting material to avoid affecting the quality of the subsequent slurry. After the stirring is completed, the reciprocating tilting movement of the adjusting frame 301 can also realize the scraping and cleaning of the grouting material attached to the inner wall of the stirring chamber 102, and the scraping force can be adaptively adjusted to ensure the cleaning quality. After the scraping is completed, the self-cleaning process of the adjusting frame 301 and the movable plate 304 is realized under the action of the collision force of the adjusting frame 301 and the fixed plate 311 to meet the cleaning needs and improve the recycling efficiency.

[0051] The grouting method of the aquifer grouting equipment as described above comprises the following steps: S1 . The main shaft 210 rotates and mixes the grouting material inside the stirring chamber 102 , and the grouting material collides with the side wall of the adjustment frame 301 .

[0052] S2. When the grouting material accumulates on one side of the adjustment frame 301 or the filter hole 303 is blocked, the tension value detected by the tension sensor 316 at the corresponding position increases, and the magnetic end block 318 drives the arc-shaped block 313 to move away from the fixed plate 311. The adjustment frame 301 tilts, and the extrusion force applied by the counterweight rod 310 to the side wall of the trapezoidal hole 307 increases, and the movable plate 304 moves along the sliding groove 302 away from the main shaft 210.

[0053] S3. After the grouting material is stirred and mixed, the arc-shaped block 313 drives the adjustment frame 301 to move tiltably. When the tension value detected by the tension sensor 316 on one side increases, the arc-shaped block 313 drives the adjustment frame 301 to increase its tilt angle, and the squeezing force applied by the counterweight rod 310 to the side wall of the trapezoidal hole 307 increases, and the sliding distance of the movable plate 304 along the sliding groove 302 increases.

[0054] S4. When the electromagnetic block 315 is powered off, the adjustment frame 301 collides with the fixed plate 311 , the extrusion force applied by the counterweight rod 310 to the trapezoidal hole 307 changes continuously, and the movable plate 304 moves back and forth continuously inside the sliding groove 302 .

[0055] By further limiting the grouting method, the grouting quality can be improved and the grouting efficiency can be guaranteed.

[0056] Such as the application of aquifer grouting equipment in coal mining.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water-bearing layer grouting equipment, comprising a shell assembly (1), a stirring assembly (2) being provided on the top of the shell assembly (1), and a plurality of adjustment assemblies (3) being evenly provided on the inner wall of the shell assembly (1), characterized in that: The shell assembly (1) comprises a shell (101), and a stirring chamber (102) is provided on the top of the shell (101); The stirring assembly (2) comprises a top frame (201), the center of the top frame (201) being rotatably connected to a main shaft (210); The adjustment assembly (3) comprises a plurality of adjustment frames (301), wherein a plurality of filter holes (303) are evenly arranged inside the adjustment frames (301), a sliding groove (302) is provided at the inner wall end of the adjustment frames (301) close to the stirring chamber (102), a movable plate (304) is sealed and slidably connected inside the sliding groove (302), a plurality of fixed plates (311) are evenly arranged on the inner wall of the stirring chamber (102), two electromagnetic blocks (315) are symmetrically arranged on one side of the fixed plate (311) away from the adjustment frame (301), an elastic pulling block (317) is arranged at the other end of each electromagnetic block (315) via a tension sensor (316), and a magnetic end block (318) is arranged at the other end of each elastic pulling block (317), and a plurality of arc-shaped working blocks (313) are symmetrically arranged on one side of the adjustment frame (301) close to the fixed plate (311) via a hinge seat (314).

2. The aquifer grouting equipment according to claim 1, characterized in that: A discharge pipe (103) is connected to one side of the outer shell (101); a liquid inlet end of the discharge pipe (103) passes through the outer shell (101) and is connected to the inner bottom of the stirring chamber (102); a liquid outlet end of the discharge pipe (103) is connected to a control valve (104); an output end of the control valve (104) is connected to an input end of a grouting pump; a plurality of feed ports (105) are formed between the top frame (201) and the top of the stirring chamber (102); a control panel (106) is provided on one side of the outer shell (101); and the control panel (106) electrically controls various electrical components.

3. The aquifer grouting equipment according to claim 1, characterized in that: The bottom of the top frame (201) is fixedly connected to the top of the housing (101); a mounting plate (202) is provided on the top of one side of the top frame (201); a driving motor (204) is provided on the top of the mounting plate (202); a supporting frame (203) is provided on the side wall of the mounting plate (202); the side wall of the supporting frame (203) is fixedly connected to the side wall of the driving motor (204); a driving wheel (205) is provided at the output end of the driving motor (204); a driven wheel (206) is provided on the top outer surface of the main shaft (210); a plurality of driving belts (207) are evenly connected to the side walls of the driving wheel (205) and the driven wheel (206); and protective covers (208) are provided on the outer surfaces of the driving wheel (205) and the driven wheel (206).

4. The aquifer grouting equipment according to claim 1, characterized in that: A connecting frame (209) is provided at the center of the top of the top frame (201), and a middle hole (213) is provided at the center of both the top frame (201) and the connecting frame (209). A bearing frame (214) is provided on the side wall of the connecting frame (209) and inside the middle hole (213). The inner wall of the bearing frame (214) is rotatably connected to the outer surface of the main shaft (210). A rotating wheel (211) is provided at the bottom of the main shaft (210), and a plurality of stirring blades (212) are evenly provided on the outer surface of the rotating wheel (211). The stirring blades (212) are arranged obliquely and rotate in a direction from the end of the adjustment frame (301) to the end of the fixed plate (311).

5. The aquifer grouting equipment according to claim 1, characterized in that: The plurality of adjustment frames (301) are evenly distributed on the inner wall end of the stirring chamber (102); the interior of the movable plate (304) is evenly provided with a plurality of docking holes (306); the filtering holes (303) match the docking holes (306); the side wall of the movable plate (304) is evenly provided with a plurality of return springs (308); the other end of the return spring (308) is fixedly connected to the inner wall of the sliding groove (302).

6. The aquifer grouting equipment according to claim 1, characterized in that: An elastic scraper (305) is provided at one end of the movable plate (304) away from the main shaft (210), and the elastic scraper (305) matches the inner wall of the stirring chamber (102). A trapezoidal hole (307) is provided at one end of the movable plate (304) close to the main shaft (210), and the trapezoidal hole (307) is an isosceles trapezoidal structure. A hanging rope (309) is provided at the inner top of the sliding groove (302), and a counterweight rod (310) is provided at the bottom of the hanging rope (309), and the outer surface of the counterweight rod (310) matches the inner wall of the trapezoidal hole (307).

7. The aquifer grouting equipment according to claim 1, characterized in that: An I-shaped hole (312) is provided inside the fixed plate (311); the inner wall of the I-shaped hole (312) is sealingly and slidably connected to the outer surface of the arc-shaped work block (313); the arc-shaped work block (313) is slidably connected between two elastic pull blocks (317); one end of the arc-shaped work block (313) away from the adjustment frame (301) is fixedly connected to the side wall of the magnetic end block (318); the tension sensor (316) is used to detect the tension value of the elastic pull block (317); the end surfaces of the electromagnetic block (315) and the magnetic end block (318) facing each other have different magnetic properties; and the arc-shaped work block (313) matches the inner wall of the stirring chamber (102).

8. The grouting method of the aquifer grouting equipment according to claim 6 comprises the following steps, characterized in that: S1, the main shaft (210) rotates to stir and mix the grouting material inside the stirring chamber (102), and the grouting material collides with the side wall of the adjustment frame (301); S2, when the grouting material accumulates on one side of the adjustment frame (301) or the filter hole (303) is blocked, the tension value detected by the tension sensor (316) at the corresponding position increases, the magnetic end block (318) drives the arc-shaped work block (313) to move away from the fixed plate (311), the adjustment frame (301) tilts, the extrusion force applied by the counterweight rod (310) to the side wall of the trapezoidal hole (307) increases, and the movable plate (304) moves along the sliding groove (302) to the end away from the main shaft (210); S3, after the grouting material is stirred and mixed, the arc-shaped work block (313) drives the adjustment frame (301) to move in an inclined manner, and when the tension value detected by the tension sensor (316) on a certain side increases, the arc-shaped work block (313) drives the adjustment frame (301) to increase its inclination angle, the extrusion force applied by the counterweight rod (310) to the side wall of the trapezoidal hole (307) increases, and the sliding distance of the movable plate (304) along the sliding groove (302) increases; S4. When the electromagnetic block (315) is powered off, the adjustment frame (301) collides with the fixed plate (311), the extrusion force applied by the counterweight rod (310) to the trapezoidal hole (307) continuously changes, and the movable plate (304) continuously moves back and forth inside the sliding groove (302).

9. Application of the aquifer grouting equipment as claimed in claim 1 in coal mining.

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