Quick leaking stoppage device for coal mine permeable well
By providing a rapid leakage plugging device for permeable coal mines, the method of lifting short sections and plugs combined with anchoring and cement sealing is solved, and the existing construction methods are achieved with rapid and simple permeable well sealing Blocking effect.
Patent Information
- Application Number
- CN202421362336.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-06-14
AI Technical Summary
The construction methods of existing coal mine permeable wells are complex, with high labor costs, making it difficult to quickly seal the bottom of the permeable well, affecting tunnel operations.
Provide a rapid leakage plugging device for permeable coal mines, including lifting short sections and plugs connected to the lower sections of lifting short sections. The bottom of the plug is equipped with a plug pallet. The pallet is anchored to the tunnel wall through an anchor rod, and the plug is plugged. Lift by drilling rod and fill cement into the bottom of the well.
It quickly seals the bottom of the permeable well, prevents formation water from flowing into the tunnel, simplifies the construction process and reduces costs.
Smart Images
Figure CN222457397U_ABST
Abstract
Description
Technical Field
[0001] The utility model patent relates to the technical field of underground plugging in water well construction, and specifically, to a rapid plugging device for a coal mine water-permeable well. Background Art
[0002] In the construction of permeable wells in coal mines, the current existing method is to drill to a horizontal depth of more than 10 meters in the coal mine tunnel, then fill the bottom of the permeable well with cement for dozens of meters, and then manually excavate horizontally from the side of the tunnel to the cement-filled position at the bottom of the permeable hole to reinforce the horizontal well, connect the permeable well with the horizontal well, and drill through the cement filled at the bottom of the well when pumping water to realize the function of the permeable well. Not only is the construction complicated, but the labor cost is also high. Utility Model Content
[0003] The purpose of this utility model patent is to provide a coal mine water permeable well rapid plugging device to address the problems in the above-mentioned prior art, which can quickly seal the bottom of the coal mine tunnel roof water permeable well to prevent formation water from flowing into the coal mine tunnel and affecting normal tunnel operations. It has a simple structure and low cost.
[0004] In order to achieve the above purpose, the technical solution adopted by this utility model patent is as follows:
[0005] The utility model patent provides a coal mine water permeable well rapid plugging device, including: a lifting short section and a plug connected below the lifting short section, a plug supporting plate is arranged at the bottom of the plug, the plug supporting plate is used to plug the bottom of the water permeable well on one side of the coal mine tunnel, the plug supporting plate is connected to an anchor rod, the anchor rod is used to anchor on the tunnel wall of the coal mine tunnel to fix the plug supporting plate to the bottom of the water permeable well; the top end of the lifting short section is used to connect the drill rod to lift the plug through the drill rod.
[0006] Optionally, the plug is a cylindrical structure, the top of the plug forms a 45-degree flange inward, a handle is radially arranged inside the plug, a first circular hole matching the diameter of the handle is opened near the bottom of the lifting short section, and the handle passes through the first circular hole and is fixedly connected to the lifting short section.
[0007] Optionally, the top of the lifting short section is connected to the bottom of the drill pipe through a variable thread joint.
[0008] Optionally, two second circular holes are relatively arranged on the cylinder wall below the flange of the plug, and the handle passes through the second circular hole, the first circular hole and another second circular hole in sequence and is welded and fixed to the plug.
[0009] Optionally, the interior of the drill pipe is hollow along the extension direction of the drill pipe so as to pour cement into the bottom of the permeable well.
[0010] Optionally, the anchor rod is fixed on the plug support plate through an anchor head, and the anchor rod extends obliquely toward one side of the wall of the coal mine tunnel.
[0011] Optionally, the size of the plug support plate is larger than the size of the bottom surface of the plug.
[0012] The beneficial effects of the present application include: a coal mine water-permeable well rapid plugging device provided by the present application comprises a lifting short section and a plug connected below the lifting short section, a plug support plate is arranged at the bottom of the plug, the plug support plate is used to plug the bottom of the water-permeable well on one side of the coal mine tunnel, the plug support plate is connected to an anchor rod, the anchor rod is used to be anchored to the tunnel wall of the coal mine tunnel to fix the plug support plate to the bottom of the water-permeable well; the top end of the lifting short section is used to connect the drill rod to lift the plug through the drill rod, and the prefabricated plug and accessories of the present application are simple and convenient; the drilling drill rod is used to connect the plug during construction, and the underground anchoring is convenient to implement and saves time, and the cementing cement is injected by the drill rod in the well for easy operation, the whole set of plugging device is simple to process, the construction method is fast and simple to operate, and the cost is saved. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0014] Figure 1 A schematic structural diagram of a coal mine water-permeable well rapid plugging device provided in an embodiment of the present application.
[0015] Icons: 10-permeable well; 20-cementing cement; 30-coal mine tunnel; 40-drill rod; 410-trapezoidal protrusion; 50-lifting short section; 510-trapezoidal groove; 60-plug; 610-lifting beam; 70-anchor rod; 710-anchor head; 80-plug support plate. DETAILED DESCRIPTION
[0016] To make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme in the embodiment of the present application will be clearly and completely described below in conjunction with the drawings in the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, rather than all of the embodiments. The components of the embodiment of the present application usually described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiment of the present application. It should be noted that, in the absence of conflict, the various features in the embodiment of the present application can be combined with each other, and the combined embodiment is still within the protection scope of the present application.
[0017] In the construction of coal mine water-permeable wells, the current existing method is to drill the well to a depth of more than 10 meters in the coal mine tunnel, then fill the bottom of the water-permeable well with cement for several tens of meters, then manually dig horizontally from the side of the tunnel to the cement-filled position at the bottom of the water-permeable hole to reinforce the horizontal well, connect the water-permeable well with the horizontal well, and drill through the cement filled at the bottom of the well when pumping water to realize the function of the water-permeable well. Not only is the construction complicated, but the labor cost is high. In view of the problems in the above-mentioned prior art, the present application provides a coal mine water-permeable well rapid plugging device. The coal mine water-permeable well 10 is constructed by drilling through the tunnel roof, which can quickly block the bottom of the tunnel roof water-permeable well 10 to prevent formation water from flowing into the tunnel and affecting normal tunnel operations.
[0018] Reference Figure 1 The embodiment of the present application provides a rapid plugging device for a coal mine water-permeable well, comprising: a lifting pup section 50 and a plug 60 connected below the lifting pup section 50, a plug support plate 80 is provided at the bottom of the plug 60, the plug support plate 80 is used to block the bottom of the water-permeable well 10 on one side of the coal mine tunnel 30, the plug support plate 80 is connected to an anchor rod 70, and the anchor rod 70 is used to anchor on the wall of the coal mine tunnel 30 to fix the plug support plate 80 to the bottom of the water-permeable well 10; the top end of the lifting pup section 50 is used to connect the drill rod 40 to lift the plug 60 through the drill rod 40.
[0019] The plug 60 of the embodiment of the present application is a seamless steel pipe, the diameter of which is determined according to the hole size, preferably 50 mm less than the hole diameter, and the length is preferably not more than the height of the tunnel. The embodiment of the present application adopts a plug 60 with a length of 2500 mm, a lifting short section 50 is installed on the lifting beam 610 at the upper part of the plug 60, and the lower part of the plug 60 is connected to the plug support plate 80.
[0020] After drilling through the roof of the coal mine tunnel 30, the drill bit is removed, the lifting short section 50 is connected, the plug 60 is pulled up as a whole and enters the permeable well 10, the bottom support steel plate is fixed on the roof of the tunnel by an anchoring method, the drill rod 40 is removed, 20-30 meters of cementing cement 20 is injected into the permeable well 10 to fill the bottom of the well, the drill rod 40 is pulled out of the well, and the cement at the bottom of the well solidifies to block the formation water from flowing into the coal mine tunnel 30.
[0021] The center of the plug support plate 80 is aligned with the bottom center of the plug 60 and is firmly welded.
[0022] The construction method of the utility model is: directly drilling through the roof of the coal mine tunnel 30, the drilling fluid and the water of the water-bearing stratum flow into the coal mine tunnel 30, the drainage system set in the coal mine tunnel 30 pumps out the water flowing into the coal mine tunnel 30, and at the same time quickly blocks the bottom of the water-permeable well 10 formed at the roof of the coal mine tunnel 30, blocking the formation water from flowing into the tunnel. The application uses a construction method of lifting the plug 60 through the drill rod 40, fixing the plug support plate 80 with an anchor rod 70, and pouring a small amount of cementing cement 20 at the bottom of the well to block the bottom of the water-permeable well 10, thereby realizing a rapid plugging method for the bottom of the water-permeable well 10. The coal mine water-permeable well rapid plugging device provided by the application has a simple processing structure, a convenient and fast construction method, and saves costs.
[0023] Specifically, the plug 60 is a cylindrical structure, and the top of the plug 60 forms a 45-degree flange inward. A handle 610 is radially arranged inside the plug 60. The lifting short section 50 has a first circular hole near the bottom with a diameter matching the handle 610. The handle 610 passes through the first circular hole and is fixedly connected to the lifting short section 50. In the embodiment of the present application, the handle 610 is welded and fixed to the lifting short section 50.
[0024] Further, the top of the lifting short section 50 is connected to the bottom of the drill pipe 40 through a variable wire joint, such as Figure 1 As shown, a trapezoidal groove 510 is formed on the top of the lifting short section 50, and a trapezoidal protrusion 410 matching the trapezoidal groove 510 is formed on the top of the drill pipe 40. Threads are respectively provided on the trapezoidal groove 510 and the trapezoidal protrusion 410 so that the trapezoidal protrusion 410 can be screwed into the trapezoidal groove 510 for fixation. The lifting short section 50 adopts the material of the drill pipe 40 joint, and the left-handed thread processed on the upper trapezoidal groove 510 matches the left-handed thread of the trapezoidal protrusion 410 connected to the lower part of the drill pipe 40, so as to facilitate disassembly in the well.
[0025] Specifically, two second circular holes are relatively arranged on the cylinder wall below the flange of the plug 60 , and the handle 610 passes through the second circular hole, the first circular hole and another second circular hole in sequence, and is welded and fixed to the plug 60 .
[0026] In the embodiment of the present application, the interior of the drill rod 40 is hollow along the extension direction of the drill rod 40 so as to pour cement into the bottom of the permeable well 10 .
[0027] Specifically, the anchor rod 70 is fixed on the plug support plate 80 through the anchor head 710 , and the anchor rod 70 extends obliquely toward one side of the wall of the coal mine tunnel 30 .
[0028] Furthermore, the size of the plug support plate 80 is larger than the bottom size of the plug 60 , and the handle 610 is made of round steel, the strength of which is greater than the hydrostatic pressure in the permeable well 10 .
[0029] To sum up, in the embodiment of the present application, the lifting beam 610 is a round steel firmly welded to the upper part of the plug 60, and the diameter of the round steel meets the hydrostatic pressure in the well; the lifting pup section 50 is a pup section of the drill pipe 40 that crosses the lifting beam 610, and the trapezoidal groove 510 on the upper part of the lifting pup section 50 matches the left-hand thread of the variable thread joint (trapezoidal protrusion 410) at the bottom of the construction drill pipe 40; the plug support plate 80 is a steel plate, and the thickness of the steel plate is determined according to the hydrostatic pressure in the well. The steel plate is square and the side length is greater than the diameter of the permeable well 10 by 300mm; the anchor rod 70 is threaded steel with a diameter of φ22mm and a length of 5m, and the reinforcement wrapped thereon is a steel bar with a diameter of φ10mm; the anchor head 710 is a steel plate, and the steel plate is a square with a thickness of δ20 and a side length of 120mm.
[0030] The present application provides a method for using a rapid plugging device for a coal mine water-permeable well as follows: during the construction of a water-permeable well 10, a prefabricated plug 60 is provided, the plug 60 comprises a seamless steel pipe, a lifting beam 610 for crossing a lifting short section 50 is installed on the upper part of the steel pipe, a plug support plate 80 is welded to the bottom of the steel pipe, a prefabricated anchor rod 70 and an anchor head 710 are fixed on the plug support plate 80, after the water-permeable well 10 is drilled through the top plate of the tunnel, the plug 60 is anchored at the bottom of the well, and cementing cement 20 is poured into the well bottom through the drill rod 40 to seal the well bottom, thereby blocking formation water from flowing into the coal mine tunnel 30, so as not to affect the normal operation of the coal mine tunnel 30.
[0031] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A rapid plugging device for a coal mine water well, characterized in that: include: A lifting nipple and a plug connected below the lifting nipple, a plug support plate is provided at the bottom of the plug, the plug support plate is used to block the bottom of the water-permeable well on one side of the coal mine roadway, and the plug support plate is connected to an anchor rod, the anchor rod is used to anchor to the wall of the coal mine roadway to fix the plug support plate to the bottom of the water-permeable well; The top end of the lifting short section is connected to a drill pipe so as to lift the plug through the drill pipe.
2. The rapid plugging device for coal mine water-permeable wells according to claim 1 is characterized in that: The plug is a cylindrical structure, the top of the plug forms a 45-degree flange inward, a handle is radially arranged inside the plug, and a first circular hole matching the diameter of the handle is opened near the bottom of the lifting short section, and the handle passes through the first circular hole and is fixedly connected to the lifting short section.
3. The rapid plugging device for coal mine water-permeable wells according to claim 1 is characterized in that: The top of the lifting short section is connected to the bottom of the drill pipe through a variable thread joint.
4. The rapid plugging device for coal mine water wells according to claim 2 is characterized in that: Two second circular holes are arranged opposite to each other on the cylinder wall below the flange of the plug, and the handle passes through the second circular hole, the first circular hole and another second circular hole in sequence, and is welded and fixed to the plug.
5. The rapid plugging device for coal mine water-permeable wells according to claim 1 is characterized in that: The interior of the drill pipe is hollow along the extension direction of the drill pipe so as to inject cementing cement into the bottom of the permeable well.
6. The rapid plugging device for coal mine water wells according to claim 1 is characterized in that: The anchor rod is fixed on the plug support plate through an anchor head, and the anchor rod extends obliquely toward one side of the wall of the coal mine tunnel.
7. The rapid plugging device for coal mine water-permeable wells according to claim 1 is characterized in that: The size of the plug support plate is larger than the size of the bottom surface of the plug.