Equipment and methods for treating contaminated groundwater in mining areas based on mine shaft sealing and slag removal technology

Abstract

This invention discloses equipment and methods for treating polluted groundwater in mining areas based on mine shaft sealing and slag removal technology. The equipment includes: a mine shaft slag removal mechanism for cleaning slag from mine shafts, and a mine shaft sealing mechanism for sealing the mine shafts. The mine shaft slag removal mechanism includes a vertically extending slag removal mechanism support frame, with a slag removal support disc fixed at the lower end of the support frame, and multiple slag removal and crushing drill bits installed at the lower end of the support disc. The mine shaft sealing mechanism includes a sealing mechanism support frame. The sealing mechanism support frame has a sealing mechanism support column on its side, and a lateral grouting hole drilling rig and a sealing grouting pipe are connected to the sealing mechanism support column. The mine sealing mechanism can drill multiple grouting holes on the inner wall of the mine and use the sealing grouting pipe to inject the finished sealing grout into the grouting holes under high pressure, so that the sealing grout can penetrate into the cracks in the side wall of the mine and achieve the sealing effect, effectively preventing groundwater from seeping into the mine through the cracks in the side wall of the mine and forming polluted water.

Description

Technical Field

[0001] This invention relates to the field of abandoned mine shaft remediation technology, specifically to equipment and methods for treating polluted groundwater in mining areas based on mine shaft sealing and slag removal technology. Background Technology

[0002] There is a close relationship between mine shafts (such as vertical shafts and tunnels) and groundwater pollution. The pollution mechanism mainly stems from the damage to the geological structure caused by the mine shafts, the formation of migration paths for pollutants, and the leakage of accumulated water after abandonment.

[0003] During mining, a large amount of groundwater, such as fissure water and aquifer water, will flow into the mine. When this water comes into contact with the ore and rock strata, it may dissolve heavy metals, such as lead, zinc and cadmium, and sulfides to form acidic wastewater, suspended solids and other pollutants. If it is discharged directly or leaks without treatment, it will seep into the groundwater through the mine tunnel.

[0004] After the mine shafts are closed, the vertical passages become water accumulation containers. Rainwater and surface runoff continuously flow in, reacting chemically with the remaining ore, slag, and support materials inside the mine shafts to form highly concentrated pollutant solutions, such as acidic water and heavy metal solutions. Currently, the treatment of abandoned mine shafts still suffers from problems such as incomplete treatment and poor treatment effects, which need to be further improved and optimized. Summary of the Invention

[0005] The purpose of this invention is to provide equipment and methods for treating polluted groundwater in mining areas based on mine shaft sealing and slag removal technology, which can effectively seal and remove slag from abandoned mine shafts and curb further pollution of groundwater from pollution sources.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] Equipment for treating polluted groundwater in mining areas based on mine slag removal and sealing technology includes a mine slag removal mechanism for cleaning slag from mine slag, and a mine slag sealing mechanism for sealing mine slag.

[0008] The mine slag removal mechanism includes a vertically extending slag removal mechanism support frame, a horizontally arranged slag removal support disc fixed at the lower end of the slag removal mechanism support frame, a slag removal support ring with a vertically extending axis rotatably connected to the lower end of the slag removal support disc, and multiple slag removal crushing drill bits rotatably connected to the bottom of the slag removal support ring.

[0009] A vertically extending slag collection and conveying pipe is fixed on the slag cleaning support disc, and multiple slag temporary storage boxes are fixed on the slag cleaning mechanism support frame. The upper end of the slag collection and conveying pipe is connected to the inside of the slag temporary storage box.

[0010] The top of the slag storage box is fixed with multiple negative pressure suction pipes that are connected to its interior. These multiple negative pressure suction pipes are connected to a vertically extending negative pressure suction collection pipe.

[0011] The outside of the slag storage box is fixed with a leachate drain pipe that is connected to the inside of the box, and the leachate drain pipe is equipped with a drain control valve.

[0012] The mine shaft sealing mechanism includes a vertically extending sealing mechanism support frame. The side of the sealing mechanism support frame has multiple vertically extending sealing mechanism receiving slots. A sealing mechanism support column is slidably connected in the sealing mechanism receiving slot along the vertical direction. A lateral grouting hole drilling machine and a sealing grouting pipe are connected to the sealing mechanism support column.

[0013] Preferably, the bottom of the slag-cleaning support disc has an annular circumferential drive receiving groove, the top of the slag-cleaning support disc is fixed with a circumferential drive gear ring, a circumferential drive motor is fixed in the circumferential drive receiving groove, a circumferential drive gear is fixed on the output shaft of the circumferential drive motor, and the circumferential drive gear is meshed with the circumferential drive gear ring.

[0014] Explanation: The circumferential drive motor, through the meshing connection between the circumferential drive gear and the circumferential drive ring, can drive the slag cleaning support to rotate around the vertical axis, thereby driving each slag cleaning and crushing drill bit to rotate, which facilitates the full crushing of the slag.

[0015] Preferably, the lower side of the slag removal support ring has multiple radially extending grooves, a radially moving support slider is slidably connected in the radially moving groove, a crushing drill bit connecting seat is fixed at the bottom of the radially moving support slider, and the slag removal crushing drill bit is rotatably connected to the crushing drill bit connecting seat through a drill bit support shaft.

[0016] Explanation: The radial moving support slider can move along the radial moving groove, which in turn drives the slag cleaning and crushing drill bit to move together, making it easy to adjust the working range of multiple slag cleaning and crushing drill bits.

[0017] Preferably, the top of the sealing mechanism receiving groove has a downward-facing lifting support hole, and an upward-facing lifting support cylinder is slidably connected in the lifting support hole. The lower end of the lifting support cylinder is fixedly connected to the top of the sealing mechanism support column.

[0018] The lifting support hole is equipped with a column lifting drive rod for driving the lifting support cylinder to move up and down.

[0019] Explanation: The vertical stroke of the support column of the sealing mechanism within the sealing mechanism receiving groove is the same as the distance between the sealing grouting pipe and the grouting hole drilling rig, and is used to quickly align the sealing grouting pipe with the grouting hole coaxially to complete the grouting sealing work.

[0020] Preferably, the side of the support column of the sealing mechanism has a horizontally extending drill rig receiving side hole, in which a drill rig extension slider is slidably connected, the lateral grouting hole drill is fixed on the drill rig extension slider, and the grouting hole drill bit of the lateral grouting hole drill is arranged in the horizontal direction.

[0021] The drilling rig receiving side hole is equipped with a drilling rig extension drive rod for driving the movement of the drilling rig extension slider.

[0022] Explanation: The inner rod of the drill rig's extension drive rod extends, causing the drill rig's extension slider, along with the lateral grouting hole drill rig, to move towards the side wall of the mine, so that the grouting hole drill bit gradually drills into the side wall of the mine, forming a grouting hole.

[0023] Preferably, the side of the support column of the sealing mechanism has a horizontally extending grouting receiving side hole, and a grouting extending slider is slidably connected in the grouting receiving side hole. The sealing grouting pipe is fixed to the side of the grouting extending slider along the horizontal arrangement.

[0024] A grouting sealing ring is fixed on the outside of the grouting pipe and arranged coaxially with it;

[0025] The grouting receiving side hole is equipped with a grouting extension drive rod for driving the movement of the grouting extension slider.

[0026] Explanation: The inner rod of the grouting extension drive rod extends and drives the grouting extension slider together with the sealing grouting pipe to move towards the side wall of the mine, so that the sealing grouting pipe is inserted into the grouting hole, and at the same time the grouting sealing ring is sealed and fitted at the outer end of the grouting hole.

[0027] Preferably, the blocking mechanism support frame is provided with a hovering support mechanism, which includes a plurality of hovering support receiving holes arranged on the outside of the blocking mechanism support frame and extending horizontally. A hovering top pressure support block is slidably connected in the hovering support receiving hole, and a friction support pad is fixed on the outside of the hovering top pressure support block.

[0028] The hovering support receiving hole is equipped with a hovering top pressure drive rod for driving the hovering top pressure support block to move.

[0029] Explanation: The entire mine mound sealing mechanism is suspended and supported in the mine mound using a suspension support mechanism. The inner rod of the suspension top pressure drive rod extends and drives one end of the suspension top pressure support block with friction support pads to extend out of the suspension support receiving hole, and makes the friction support pads press against the side wall of the mine mound. Under the static friction of multiple friction support pads, the entire mine mound sealing mechanism is suspended and supported in the mine mound.

[0030] Preferably, the lower end of the sealing mechanism support frame is fixed with an upward-facing bottom sealing semi-ellipsoidal shell, and multiple bottom sealing grouting pipes connected to its lower side are fixed inside the bottom sealing semi-ellipsoidal shell.

[0031] The bottom sealing semi-ellipsoidal shell has a vertically through pre-embedded hole, the lower end of the sealing mechanism support frame has a pre-embedded lifting and receiving hole with the opening facing downward, a pre-embedded lifting support column is slidably connected in the pre-embedded lifting and receiving hole, the lower end of the pre-embedded lifting support column has a pre-embedded snap-fit ​​hole, and a leachate discharge collection pipe shell is snapped and fixed in the pre-embedded snap-fit ​​hole.

[0032] Multiple vertically extending snap-fit ​​top pressure strips are fixed to the inner side wall of the pre-embedded snap-fit ​​hole;

[0033] The bottom of the leachate discharge collection pipe shell has multiple leachate inlet holes that are connected to its interior. A leachate sealing slider is slidably connected inside the leachate discharge collection pipe shell. Multiple inlet hole sealing matching columns are fixed at the lower end of the leachate sealing slider. Multiple vertically penetrating leachate conveying perforations are provided on the leachate sealing slider. A leachate discharge conveying pipe that is connected to its interior is fixed at the top of the leachate discharge collection pipe shell.

[0034] A leachate filter plate is fixed at the bottom of the leachate discharge collection pipe shell;

[0035] The pre-embedded lifting receiving hole is equipped with a pre-embedded lifting drive rod for driving the pre-embedded lifting support column to move up and down.

[0036] Explanation: A bottom sealing mold chamber is formed between the bottom sealing semi-ellipsoidal shell and the bottom of the mine. The finished sealing slurry is injected into the bottom sealing mold chamber. After the sealing slurry dries, the bottom shell of the mine is sealed. At the same time, the leachate discharge collection pipe is pre-embedded and fixed in the bottom shell of the mine. In the later stage, the residual polluted water will be extracted through the leachate discharge collection pipe.

[0037] Preferably, the method for treating contaminated groundwater in mining areas based on mine shaft sealing and slag removal technology, and the equipment for treating contaminated groundwater in mining areas based on the above-mentioned mine shaft sealing and slag removal technology, includes the following steps:

[0038] S1. Clean and seal the sidewalls of the mine shaft:

[0039] The entire mine mound sealing mechanism is lifted into the mine mound using a crane, and the side walls of the mine mound are cleaned and sealed from top to bottom;

[0040] First, a lateral grouting hole drilling rig is used to drill multiple grouting holes on the side wall of the mine shaft. Then, the sealing grouting pipe is inserted into the grouting hole to carry out grouting work, so that the sealing grout seeps into the cracks to achieve sealing.

[0041] Furthermore, the vibration generated during the drilling process of the lateral grouting hole drilling rig can clear loose rock debris, causing it to fall to the bottom of the mine.

[0042] S2. Clean the slag and wastewater at the bottom of the mine shaft:

[0043] The entire slag removal mechanism is hoisted into the mine using a crane. The slag is crushed using a slag removal and crushing drill bit, and the slag is transported through a slag collection and conveying pipe to a slag temporary storage box for storage using a vacuum suction effect.

[0044] Wastewater mixed with slag is sucked into a slag temporary storage container for storage;

[0045] After the slag removal mechanism is removed from the mine, the external discharge control valve is opened to discharge the wastewater stored in the slag storage box. The wastewater can then be treated by external water purification equipment.

[0046] Compared with the prior art, the beneficial effects of the present invention are reflected in the following aspects:

[0047] 1. The present invention has a reasonable structural design. The mine sealing mechanism can drill multiple grouting holes on the inner wall of the mine and use the sealing grouting pipe to inject the finished sealing grout into the grouting holes under high pressure, so that the sealing grout can penetrate into the cracks in the side wall of the mine and achieve the sealing effect. This effectively prevents groundwater from seeping into the mine through the cracks in the side wall of the mine and forming polluted water.

[0048] 2. The present invention is easy to operate. The slag removal mechanism of the mine can clean the rock debris and slag generated during the drilling process. First, the slag removal and crushing drill bit is used to crush the rock debris and slag collected at the bottom of the mine. After crushing, the rock debris and slag are collected in the slag temporary storage box by the airflow through the slag collection and conveying pipe under the negative pressure suction.

[0049] 3. In the technical solution of the present invention, the sewage deposited at the bottom of the mine shaft will also be drawn into the slag storage box by the airflow through the slag collection and conveying pipe under the negative pressure suction. After the slag cleaning mechanism of the mine shaft is hoisted out from the mine shaft, the external discharge control valve is opened to discharge the sewage stored in the slag storage box. The sewage can then be uniformly purified by external water purification equipment.

[0050] 4. In the technical solution of the present invention, after the slag removal work at the bottom of the mine, the bottom of the mine is then sealed. A bottom sealing mold chamber is formed between the bottom sealing semi-ellipsoidal shell and the bottom of the mine. The finished sealing slurry is injected into the bottom sealing mold chamber. After the sealing slurry dries, a mine sealing bottom shell is formed. At the same time, the leachate discharge collection pipe shell is pre-embedded and fixed in the mine sealing bottom shell, so that the residual polluted water can be extracted through the leachate discharge collection pipe shell in the later stage. Attached Figure Description

[0051] Figure 1 This is a schematic diagram of the slag removal mechanism for the mine shaft of the present invention;

[0052] Figure 2This is a schematic diagram of the slag-cleaning support disc of the present invention;

[0053] Figure 3 This is a schematic diagram of the structure of the mine shaft sealing mechanism of the present invention;

[0054] Figure 4 This is a schematic diagram of the structure of the support column of the sealing mechanism of the present invention;

[0055] Figure 5 This is a structural schematic diagram of the hovering support mechanism of the present invention;

[0056] Figure 6 This is a schematic diagram of the structure of the leachate discharge and collection pipe shell of the present invention.

[0057] In the diagram, 10-mine slag removal mechanism, 11-slag removal mechanism support frame, 12-slag removal support disc, 120-circumferential drive receiving groove, 121-slag removal support ring, 122-circumferential drive gear ring, 123-circumferential drive motor, 124-circumferential drive gear, 13-slag removal crushing drill bit, 130-drill bit support shaft, 131-radial movement slide, 132-radial movement support slider, 133-crushing drill bit connecting seat, 14-slag collection and conveying pipe, 15-mine Slag temporary storage box, 151-Negative pressure suction connecting pipe, 152-Negative pressure suction collection pipe, 153-Leachate discharge pipe, 154-Discharge control valve, 20-Mine chamber sealing mechanism, 21-Sealing mechanism support frame, 211-Sealing mechanism receiving slot, 212-Lifting support hole, 213-Lifting support cylinder, 214-Column lifting drive rod, 22-Sealing mechanism support column, 23-Side grouting hole drilling rig, 230-Grouting hole drill bit, 231-Drilling rig receiving side hole, 2 32-Drilling rig extended slider, 233-Drilling rig extended drive rod, 24-Grouting pipe sealing, 240-Grouting sealing ring, 241-Grouting receiving side hole, 242-Grouting extended slider, 243-Grouting extended drive rod, 25-Hovering support mechanism, 251-Hovering support receiving hole, 252-Hovering top pressure support block, 253-Friction support pad, 254-Hovering top pressure drive rod, 26-Bottom end sealing semi-ellipsoidal shell, 261-Bottom end sealing grouting pipe, 26 2-Pre-embedded perforation, 263-Pre-embedded lifting and receiving hole, 264-Pre-embedded lifting support column, 2640-Pre-embedded snap-fit ​​hole, 2641-Snap-fit ​​top pressure strip, 265-Leachate discharge collection pipe shell, 2650-Leachate filter plate, 2651-Leachate inlet hole, 2652-Leachate sealing slider, 2653-Inlet hole sealing column, 2654-Leachate conveying perforation, 2655-Leachate discharge conveying pipe, 266-Pre-embedded lifting drive rod. Detailed Implementation

[0058] The following is combined Figures 1-6The present invention will be described in detail. For ease of description, the orientations mentioned below are defined as follows: The directions of up, down, left, right, front, and back mentioned below are consistent with the directions of up, down, left, right, front, and back in the projection relationship of the respective main view or structural schematic diagram.

[0059] Example 1: Equipment for treating contaminated groundwater in mining areas based on mine shaft sealing and slag removal technology, such as... Figure 1 , Figure 3 As shown, it includes a mine slag removal mechanism 10 for cleaning slag in a mine, and a mine sealing mechanism 20 for sealing the mine.

[0060] like Figure 1 As shown, the slag removal mechanism 10 of the mine includes a vertically extending slag removal mechanism support frame 11. A horizontally arranged slag removal support disc 12 is fixed at the lower end of the slag removal mechanism support frame 11. A slag removal support ring 121 with a vertically extending axis is rotatably connected to the lower end of the slag removal support disc 12. A plurality of slag removal crushing drill bits 13 are rotatably connected to the bottom of the slag removal support ring 121.

[0061] A vertically extending slag collection and conveying pipe 14 is fixed on the slag cleaning support disc 12, and multiple slag temporary storage boxes 15 are fixed on the slag cleaning mechanism support frame 11. The upper end of the slag collection and conveying pipe 14 is connected to the inside of the slag temporary storage box 15.

[0062] The top of the slag storage box 15 is fixed with multiple negative pressure suction connecting pipes 151 that are connected to its interior. The multiple negative pressure suction connecting pipes 151 are connected to a vertically extending negative pressure suction collection pipe 152.

[0063] The slag storage box 15 is fixed to the outside of a leachate drain pipe 153 that is connected to the inside of the box. The leachate drain pipe 153 is equipped with a drain control valve 154.

[0064] like Figure 3 As shown, the mine tunnel sealing mechanism 20 includes a vertically extending sealing mechanism support frame 21. The side of the sealing mechanism support frame 21 has multiple vertically extending sealing mechanism receiving slots 211. A sealing mechanism support column 22 is slidably connected in the sealing mechanism receiving slot 211 along the vertical direction. A lateral grouting hole drill 23 and a sealing grouting pipe 24 are connected to the sealing mechanism support column 22.

[0065] like Figure 3 As shown, the top of the sealing mechanism receiving groove 211 has a downward-facing lifting support hole 212, and an upward-facing lifting support cylinder 213 is slidably connected in the lifting support hole 212. The lower end of the lifting support cylinder 213 is fixedly connected to the top of the sealing mechanism support column 22.

[0066] The lifting support hole 212 is provided with a column lifting drive rod 214 for driving the lifting support cylinder 213 to move up and down. The column lifting drive rod 214 is an existing electric control telescopic rod driven by a servo motor. The outer rod end of the column lifting drive rod 214 is fixedly connected to the top inside the lifting support hole 212, and the inner rod end of the column lifting drive rod 214 is fixedly connected to the bottom inside the lifting support cylinder 213.

[0067] Example 2: This example describes a method for treating contaminated groundwater in mining areas based on mine shaft sealing and slag removal technology. Based on the equipment for treating contaminated groundwater in mining areas based on mine shaft sealing and slag removal technology described in Example 1 above, the method includes the following steps:

[0068] S1. Clean and seal the sidewalls of the mine shaft:

[0069] The entire mine mound sealing mechanism 20 was lifted into the mine mound using a crane, and the side walls of the mine mound were cleaned and sealed from top to bottom.

[0070] First, multiple grouting holes are drilled on the side wall of the mine shaft using the lateral grouting hole drilling rig 23. Then, the sealing grouting pipe 24 is inserted into the grouting hole to carry out grouting work, so that the sealing grout seeps into the crack to achieve sealing.

[0071] Furthermore, the vibration generated during the drilling process by the lateral grouting hole drill 23 can clear loose rock debris, causing it to fall to the bottom of the mine shaft.

[0072] S2. Clean the slag and wastewater at the bottom of the mine shaft:

[0073] The entire slag removal mechanism 10 is hoisted into the mine using a crane. The slag is crushed using a slag removal and crushing drill bit 13. The slag is then transported through a slag collection and conveying pipe 14 to a slag temporary storage box 15 for storage using a vacuum suction action.

[0074] Wastewater mixed with slag is sucked into the slag temporary storage box 15 for storage;

[0075] After the slag removal mechanism 10 is removed from the mine, the external discharge control valve 154 is opened to discharge the sewage stored in the slag storage box 15. The sewage can then be uniformly purified using external water purification equipment.

[0076] Example 3: Based on Example 1, such as Figure 5 As shown, the sealing mechanism support frame 21 is provided with a hovering support mechanism 25. The hovering support mechanism 25 includes a plurality of hovering support receiving holes 251 arranged on the outside of the sealing mechanism support frame 21 and extending horizontally. A hovering top pressure support block 252 is slidably connected in the hovering support receiving hole 251. A friction support pad 253 is fixed on the outside of the hovering top pressure support block 252.

[0077] The hovering support receiving hole 251 is provided with a hovering top pressure drive rod 254 for driving the hovering top pressure support block 252 to move. The hovering top pressure drive rod 254 is an existing electric control telescopic rod driven by a servo motor. The outer end of the hovering top pressure drive rod 254 is fixedly connected to the inner end of the hovering support receiving hole 251, and the inner end of the hovering top pressure drive rod 254 is fixedly connected to the hovering top pressure support block 252.

[0078] Example 4: This example describes a method for treating contaminated groundwater in mining areas based on mine pit sealing and slag removal technology. It is based on the equipment for treating contaminated groundwater in mining areas based on mine pit sealing and slag removal technology described in Example 3 above. The difference from Example 2 is that in step S1, the entire mine pit sealing mechanism 20 is suspended and supported in the mine pit using a suspension support mechanism 25. The inner rod of the suspension top-pressing drive rod 254 extends, causing one end of the suspension top-pressing support block 252 with friction support pads 253 to extend from the suspension support receiving hole 251, and causing the friction support pads 253 to press against the side wall of the mine pit. Under the static friction of multiple friction support pads 253, the entire mine pit sealing mechanism 20 is suspended and supported in the mine pit.

[0079] Example 5: Based on Example 3, such as Figure 4 As shown, the side of the sealing mechanism support column 22 has a horizontally extending drill rig receiving side hole 231. A drill rig extension slider 232 is slidably connected in the drill rig receiving side hole 231. The lateral grouting hole drill 23 is fixed on the drill rig extension slider 232. The grouting hole drill bit 230 of the lateral grouting hole drill 23 is arranged in the horizontal direction.

[0080] The drilling rig receiving side hole 231 is provided with a drilling rig extension drive rod 233 for driving the drilling rig extension slider 232 to move. The drilling rig extension drive rod 233 is an existing electric control telescopic rod driven by a servo motor. The outer end of the drilling rig extension drive rod 233 is fixedly connected to the inner end of the drilling rig receiving side hole 231, and the inner end of the drilling rig extension drive rod 233 is fixedly connected to the drilling rig extension slider 232.

[0081] like Figure 4 As shown, the side of the support column 22 of the sealing mechanism has a horizontally extending grouting receiving side hole 241, and a grouting extension slider 242 is slidably connected in the grouting receiving side hole 241. The sealing grouting pipe 24 is arranged horizontally and fixed on the side of the grouting extension slider 242.

[0082] A grouting sealing ring 240 is fixed on the outside of the grouting pipe 24 and arranged coaxially with it;

[0083] The grouting receiving side hole 241 is provided with a grouting extension drive rod 243 for driving the grouting extension slider 242 to move. The grouting extension drive rod 243 is an existing electrically controlled telescopic rod driven by a servo motor. The outer end of the grouting extension drive rod 243 is fixedly connected to the inner end of the grouting receiving side hole 241, and the inner end of the grouting extension drive rod 243 is fixedly connected to the grouting extension slider 242.

[0084] Example 6: This example describes a method for treating polluted groundwater in mining areas based on mine shaft sealing and slag removal technology. It is based on the equipment for treating polluted groundwater in mining areas based on mine shaft sealing and slag removal technology in Example 5 above. The difference between Example 4 and Example 5 is that in step S1, the vertical stroke of the sealing mechanism support column 22 in the sealing mechanism receiving groove 211 is the same as the distance between the sealing grouting pipe 24 and the grouting hole drilling machine 23.

[0085] In the initial state, the sealing mechanism support column 22 is located at the top of the sealing mechanism receiving groove 211. First, the lateral grouting hole drill 23 is used to drill. When the lateral grouting hole drill 23 is started, the grouting hole drill bit 230 will continue to rotate. At the same time, the inner rod of the drill rig extension drive rod 233 extends and drives the drill rig extension slider 232 together with the lateral grouting hole drill 23 to move towards the side wall of the mine, so that the grouting hole drill bit 230 gradually drills into the side wall of the mine and forms a grouting hole.

[0086] After drilling is completed, the inner rod of the drilling rig extension drive rod 233 retracts, pulling the grouting hole drill bit 230 out of the grouting hole, and causing the lateral grouting hole drilling rig 23 and the drilling rig extension slider 232 to retract together into the drilling rig receiving side hole 231.

[0087] Next, the inner rod of the column lifting drive rod 214 extends and drives the lifting support cylinder 213 together with the sealing mechanism support column 22 to move vertically downward in the sealing mechanism receiving groove 211, so that the sealing mechanism support column 22 is at the bottom position in the sealing mechanism receiving groove 211. At this time, the sealing grouting pipe 24 and the grouting hole are just coaxially aligned.

[0088] The inner rod of the grouting extension drive rod 243 extends out, driving the grouting extension slider 242 together with the sealing grouting pipe 24 to move towards the side wall of the mine, so that the sealing grouting pipe 24 is inserted into the grouting hole, and at the same time the grouting sealing ring 240 seals and fits on the outer end of the grouting hole.

[0089] A grouting and conveying station is built on the ground. The finished sealing grout, after being mixed, is transported by a piston pump. The output end of the piston pump is connected to the sealing grouting pipe 24 through a pipeline. The finished sealing grout is injected into the grouting hole under high pressure, so that the sealing grout penetrates into the cracks in the side wall of the mine, thereby achieving the sealing effect and effectively preventing groundwater from seeping into the mine through the cracks in the side wall of the mine and forming polluted water.

[0090] As the entire mine shaft sealing mechanism 20 moves from top to bottom within the mine shaft, it repeats the aforementioned hovering, drilling, and grouting operations to seal the entire sidewall of the mine shaft.

[0091] The sealing grout is a cement-based sealing grout using existing technology, with a compressive strength of around 40 MPa.

[0092] Example 7: Based on Example 5, such as Figure 2 As shown, the bottom of the slag-cleaning support disc 12 has an annular circumferential drive receiving groove 120, the top of the slag-cleaning support ring 121 is fixed with a circumferential drive gear ring 122, and a circumferential drive motor 123 is fixed in the circumferential drive receiving groove 120. The circumferential drive motor 123 is a servo motor of the prior art. A circumferential drive gear 124 is fixed on the output shaft of the circumferential drive motor 123, and the circumferential drive gear 124 is meshed with the circumferential drive gear ring 122.

[0093] like Figure 2 As shown, the slag removal support ring 121 has multiple radially extending grooves 131 on its lower side. A radially moving support slider 132 is slidably connected in the radially moving grooves 131. A crushing drill bit connecting seat 133 is fixed at the bottom of the radially moving support slider 132. The slag removal crushing drill bit 13 is rotatably connected to the crushing drill bit connecting seat 133 through a drill bit support shaft 130. The drill bit support shaft 130 is driven to rotate by a prior art servo motor fixed on the crushing drill bit connecting seat 133 through gear transmission.

[0094] The radially moving support slider 132 is driven by a prior art servo motor fixed in the radially moving slide 131 to move along the radially moving slide 131 via a gear and rack transmission.

[0095] The slag removal and crushing drill bit 13 is a conical crushing drill bit of the prior art.

[0096] Example 8: This example describes a method for treating polluted groundwater in a mining area based on mine pit sealing and slag removal technology. It is based on the equipment for treating polluted groundwater in a mining area based on mine pit sealing and slag removal technology in Example 7 above. The difference from Example 6 is that, in step S2, after sealing the side wall of the mine pit, the entire mine pit sealing mechanism 20 is hoisted out of the mine pit, and the mine pit slag removal mechanism 10 is hoisted to the bottom of the mine pit. The drill bit support shaft 130 is driven to rotate by a conventional servo motor fixed on the crushing drill bit connecting seat 133 through gear transmission. The drill bit support shaft 130 then drives the slag removal and crushing drill bit 13 to rotate continuously, crushing the rock fragments and slag collected at the bottom of the mine pit.

[0097] A vacuum pumping station is built on the ground. The vacuum pumping station has multiple vacuum pumps. The input end of each vacuum pump is connected to the negative pressure suction collection pipe 152 through a pipeline. The vacuum pumps are used to pump air from the inside of the slag storage box 15, so that the inside of the slag storage box 15 is in a negative pressure state. Under the action of negative pressure suction, the crushed rock fragments and slag are carried by the airflow through the slag collection and conveying pipe 14 into the inside of the slag storage box 15.

[0098] Furthermore, the wastewater deposited at the bottom of the mine shaft will also be drawn into the slag storage box 15 by the airflow through the slag collection and conveying pipe 14 under the negative pressure suction.

[0099] Example 9: Based on Example 7, as follows Figure 5 As shown, the lower end of the sealing mechanism support frame 21 is fixed with an upward-facing bottom sealing semi-ellipsoidal shell 26, and multiple bottom sealing grouting pipes 261 connected to its lower side are fixed inside the bottom sealing semi-ellipsoidal shell 26.

[0100] The bottom sealing semi-ellipsoidal shell 26 has a vertically penetrating pre-embedded hole 262, the lower end of the sealing mechanism support frame 21 has a pre-embedded lifting and receiving hole 263 with the opening facing downward, a pre-embedded lifting support column 264 is slidably connected in the pre-embedded lifting and receiving hole 263, the lower end of the pre-embedded lifting support column 264 has a pre-embedded snap-fit ​​hole 2640, and a leachate discharge collection pipe shell 265 is snapped and fixed in the pre-embedded snap-fit ​​hole 2640;

[0101] Multiple vertically extending snap-fit ​​and pressure-fitting strips 2641 are fixed on the inner side wall of the pre-embedded snap-fitting hole 2640. The leachate discharge collection pipe shell 265 is snap-fitted between the multiple snap-fit ​​and pressure-fitting strips 2641 by static friction.

[0102] like Figure 6 As shown, the bottom of the leachate discharge collection pipe shell 265 has multiple leachate inlet holes 2651 that are connected to its interior. A leachate sealing slider 2652 is slidably connected inside the leachate discharge collection pipe shell 265. Multiple inlet hole sealing fitting columns 2653 are fixed at the lower end of the leachate sealing slider 2652. Multiple vertically penetrating leachate conveying holes 2654 are provided on the leachate sealing slider 2652. A leachate discharge conveying pipe 2655 that is connected to its interior is fixed at the top of the leachate discharge collection pipe shell 265.

[0103] A leachate filter plate 2650 is fixed at the bottom of the leachate discharge collection pipe shell 265.

[0104] like Figure 5As shown, the pre-embedded lifting receiving hole 263 is provided with a pre-embedded lifting drive rod 266 for driving the pre-embedded lifting support column 264 to move up and down. The pre-embedded lifting drive rod 266 is an existing electric control telescopic rod driven by a servo motor. The outer rod end of the pre-embedded lifting drive rod 266 is fixedly connected to the top of the pre-embedded lifting receiving hole 263, and the inner rod end of the pre-embedded lifting drive rod 266 is fixedly connected to the top of the pre-embedded lifting support column 264.

[0105] Example 10: This example describes a method for treating polluted groundwater in a mining area based on mine pit sealing and slag removal technology. It is based on the equipment for treating polluted groundwater in a mining area based on mine pit sealing and slag removal technology in Example 9 above. The difference between Example 8 and Example 9 is that, in step S2, after the slag removal work at the bottom of the mine pit is completed, the mine pit slag removal mechanism 10 is hoisted out of the mine pit, and finally the mine pit sealing mechanism 20 is hoisted to the bottom of the mine pit to seal the bottom of the mine pit.

[0106] The inner rod of the pre-embedded lifting drive rod 266 extends and drives the pre-embedded lifting support column 264 to move down together with the leachate discharge collection pipe shell 265, so that the leachate discharge collection pipe shell 265 passes through the pre-embedded perforation 262 and the lower end of the leachate discharge collection pipe shell 265 is pressed against the bottom of the mine chamber.

[0107] A grouting and conveying station is built on the ground. The finished sealing grout after mixing is transported by a piston pump. The output end of the piston pump is connected to the bottom grouting pipe 261 of each sealing end through a pipeline. The bottom sealing semi-ellipsoidal shell 26 and the bottom of the mine pit form a bottom sealing mold chamber. The finished sealing grout is injected into the bottom sealing mold chamber. After the sealing grout dries, it will form the bottom shell of the mine pit sealing.

[0108] Meanwhile, the leachate discharge collection pipe shell 265 is pre-embedded and fixed in the bottom shell of the mine shaft sealing, so that the residual polluted water can be extracted through the leachate discharge collection pipe shell 265 in the later stage.

[0109] Finally, the mine sealing mechanism 20 is hoisted out of the mine. The bottom sealing semi-ellipsoidal shell 26 is demolded from the bottom shell of the mine sealing, and the leachate discharge collection pipe shell 265 is clamped and matched between multiple clamping top pressure matching strips 2641 by static friction. At the same time as the mine sealing mechanism 20 is hoisted out, the leachate discharge collection pipe shell 265 is also detached from the pre-embedded clamping matching hole 2640.

[0110] Finally, a disc-shaped cement cover was used to seal the entrance to the mine shaft on the ground to prevent rainwater from entering the shaft again.

Claims

1. Equipment for treating contaminated groundwater in mining areas based on mine shaft sealing and slag removal technology, characterized in that, include: A mine slag removal mechanism (10) for cleaning slag in a mine shaft, and a mine shaft sealing mechanism (20) for sealing a mine shaft. The slag removal mechanism (10) of the mine includes a vertically extending slag removal mechanism support frame (11), and a horizontally arranged slag removal support disc (12) is fixed at the lower end of the slag removal mechanism support frame (11). A slag removal support ring (121) with a vertically extending axis is rotatably connected to the lower end of the slag removal support disc (12). A plurality of slag removal crushing drill bits (13) are rotatably connected to the bottom of the slag removal support ring (121). A vertically extending slag collection and conveying pipe (14) is fixed on the slag cleaning support disc (12), and multiple slag temporary storage boxes (15) are fixed on the slag cleaning mechanism support frame (11). The upper end of the slag collection and conveying pipe (14) is connected to the inside of the slag temporary storage box (15). The top of the slag storage box (15) is fixed with multiple negative pressure suction connecting pipes (151) that are connected to its interior. The multiple negative pressure suction connecting pipes (151) are connected to a vertically extending negative pressure suction collection pipe (152). The slag storage box (15) is fixed with a leachate drain pipe (153) connected to its interior, and the leachate drain pipe (153) is equipped with a drain control valve (154). The mine shaft sealing mechanism (20) includes a vertically extending sealing mechanism support frame (21). The sealing mechanism support frame (21) has multiple vertically extending sealing mechanism receiving slots (211) on its side. A sealing mechanism support column (22) is slidably connected in the sealing mechanism receiving slot (211) along the vertical direction. A lateral grouting hole drill (23) and a sealing grouting pipe (24) are connected to the sealing mechanism support column (22). The lower end of the sealing mechanism support frame (21) is fixed with an opening facing upwards and a bottom sealing semi-ellipsoidal shell (26). Inside the bottom sealing semi-ellipsoidal shell (26), there are multiple sealing bottom grouting pipes (261) connected to its lower side. The bottom sealing semi-ellipsoidal shell (26) has a vertically penetrating pre-embedded hole (262), the lower end of the sealing mechanism support frame (21) has a pre-embedded lifting and receiving hole (263) with the opening facing downward, a pre-embedded lifting support column (264) is slidably connected in the pre-embedded lifting and receiving hole (263), the lower end of the pre-embedded lifting support column (264) has a pre-embedded snap-fit ​​hole (2640), and a leachate discharge collection pipe shell (265) is snapped and fixed in the pre-embedded snap-fit ​​hole (2640). Multiple vertically extending snap-fit ​​top-pressing strips (2641) are fixed on the inner wall of the pre-embedded snap-fit ​​hole (2640). The bottom of the leachate discharge collection pipe shell (265) has multiple leachate inlet holes (2651) that communicate with its interior. A leachate sealing slider (2652) is slidably connected inside the leachate discharge collection pipe shell (265). Multiple inlet hole sealing fitting columns (2653) are fixed at the lower end of the leachate sealing slider (2652). Multiple vertically penetrating leachate conveying perforations (2654) are provided on the leachate sealing slider (2652). A leachate discharge conveying pipe (2655) that communicates with its interior is fixed at the top of the leachate discharge collection pipe shell (2655). A leachate filter plate (2650) is fixed at the bottom of the leachate discharge collection pipe shell (265). The pre-embedded lifting receiving hole (263) is provided with a pre-embedded lifting drive rod (266) for driving the pre-embedded lifting support column (264) to move up and down.

2. The equipment for treating polluted groundwater in mining areas based on mine shaft sealing and slag removal technology according to claim 1, characterized in that, The bottom of the slag-cleaning support disc (12) has an annular circumferential drive receiving groove (120). The top of the slag-cleaning support ring (121) is fixed with a circumferential drive gear ring (122). A circumferential drive motor (123) is fixed in the circumferential drive receiving groove (120). A circumferential drive gear (124) is fixed on the output shaft of the circumferential drive motor (123). The circumferential drive gear (124) meshes with the circumferential drive gear ring (122).

3. The equipment for treating polluted groundwater in mining areas based on mine shaft sealing and slag removal technology according to claim 1, characterized in that, The slag removal support ring (121) has multiple radially extending grooves (131) on its lower side. A radially moving support slider (132) is slidably connected in the radially moving groove (131). A crushing drill bit connecting seat (133) is fixed at the bottom of the radially moving support slider (132). The slag removal crushing drill bit (13) is rotatably connected to the crushing drill bit connecting seat (133) through a drill bit support shaft (130).

4. The equipment for treating polluted groundwater in mining areas based on mine shaft sealing and slag removal technology according to claim 1, characterized in that, The top of the sealing mechanism receiving groove (211) has a downward-facing lifting support hole (212), and an upward-facing lifting support cylinder (213) is slidably connected in the lifting support hole (212). The lower end of the lifting support cylinder (213) is fixedly connected to the top of the sealing mechanism support column (22). The lifting support hole (212) is provided with a column lifting drive rod (214) for driving the lifting support cylinder (213) to move up and down.

5. The equipment for treating polluted groundwater in mining areas based on mine shaft sealing and slag removal technology according to claim 1, characterized in that, The sealing mechanism support column (22) has a horizontally extending drill rig receiving side hole (231) on its side. A drill rig extension slider (232) is slidably connected in the drill rig receiving side hole (231). The lateral grouting hole drill (23) is fixed on the drill rig extension slider (232). The grouting hole drill bit (230) of the lateral grouting hole drill (23) is arranged in the horizontal direction. The drill rig receiving side hole (231) is provided with a drill rig extension drive rod (233) for driving the drill rig extension slider (232) to move.

6. The equipment for treating polluted groundwater in mining areas based on mine shaft sealing and slag removal technology according to claim 1, characterized in that, The side of the support column (22) of the sealing mechanism has a horizontally extending grouting receiving side hole (241), and a grouting extension slider (242) is slidably connected in the grouting receiving side hole (241). The sealing grouting pipe (24) is arranged horizontally and fixed on the side of the grouting extension slider (242). The sealing grouting pipe (24) is fixed with a grouting sealing ring (240) arranged coaxially with it on the outside. The grouting receiving side hole (241) is provided with a grouting extension drive rod (243) for driving the grouting extension slider (242) to move.

7. The equipment for treating polluted groundwater in mining areas based on mine shaft sealing and slag removal technology according to claim 1, characterized in that, The blocking mechanism support frame (21) is provided with a hovering support mechanism (25). The hovering support mechanism (25) includes a plurality of hovering support receiving holes (251) arranged on the outside of the blocking mechanism support frame (21) and extending horizontally. A hovering top pressure support block (252) is slidably connected in the hovering support receiving hole (251). A friction support pad (253) is fixed on the outside of the hovering top pressure support block (252). The hovering support receiving hole (251) is provided with a hovering top pressure drive rod (254) for driving the hovering top pressure support block (252) to move.

8. A method for treating contaminated groundwater in mining areas based on mine shaft sealing and slag removal technology, and an apparatus for treating contaminated groundwater in mining areas based on mine shaft sealing and slag removal technology as described in any one of claims 1 to 7, characterized in that... Includes the following steps: S1. Clean and seal the sidewalls of the mine shaft: The entire mine shaft sealing mechanism (20) was hoisted into the mine shaft using a crane, and the side walls of the mine shaft were cleaned and sealed from top to bottom. First, a lateral grouting hole drilling rig (23) is used to drill multiple grouting holes on the side wall of the mine shaft. Then, the sealing grouting pipe (24) is inserted into the grouting hole to carry out grouting work, so that the sealing grout seeps into the crack to achieve sealing. Furthermore, the vibration generated during the drilling process by the lateral grouting hole drilling rig (23) can clean up the loose rock debris and cause it to fall to the bottom of the mine. S2. Clean the slag and wastewater at the bottom of the mine shaft: The entire slag removal mechanism (10) is hoisted into the mine using a crane. The slag is crushed using a slag removal and crushing drill bit (13), and the slag is transported through the slag collection and conveying pipe (14) to the slag temporary storage box (15) for storage using vacuum suction. Wastewater mixed with slag is sucked into the slag storage box (15) and stored there; After the slag removal mechanism (10) is removed from the mine, the external discharge control valve (154) is opened to discharge the sewage stored in the slag storage box (15). The sewage can then be uniformly purified using external water purification equipment.

Images