Coal mine water disaster prevention and control device

Abstract

The utility model discloses a coal mine water disaster prevention and control device which comprises a material mixing box, a feeding port is formed in the top end of the material mixing box, and a stirring mechanism is installed in the material mixing box. One end of the grouting pipe is fixedly communicated with the bottom wall of the material mixing box, and a grouting pump is mounted on the grouting pipe; the grouting head comprises a grouting head body, the grouting head body is fixedly connected to the end of the grouting pipe, a mounting sleeve is rotatably connected to the outer wall of the grouting head body, a plurality of side holes are formed in the side wall of the mounting sleeve in the arc direction of the outer wall, a plurality of flow dividing holes are formed in the side wall of the grouting head body, and a plurality of plugging assemblies are mounted on the inner wall of the mounting sleeve. An electric slip ring is mounted on the grouting pipe, and an electric slip ring rotor is fixedly connected with the mounting sleeve; the end, away from the grouting pipe, of the grouting head body is fixedly connected with a discharging pipe, and a control valve is installed on the discharging pipe. The side face grouting pressure is larger than the grouting pressure of the discharging pipe, so that the position with poor permeability can be filled with slurry, and the filling effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine construction, in particular to a coal mine water hazard prevention and control device. Background Art

[0002] Coal mine water hazards affect the progress and quality of mine construction, worsen the working environment of workers, increase the drainage facilities and drainage costs of mines, and bring unsafe factors to coal mine production. In severe cases, flooding accidents may even occur, causing significant losses of life and property. In the process of coal mining, it is very easy to communicate with old cellars and accumulate water, causing mine water seepage accidents. Coal mine water hazards can also lead to erosion and weakening of surrounding rocks, induce secondary disasters, damage water resources, reduce resource recoverability, and high drainage costs per ton of coal. Prevention and control work is of important and urgent practical significance. The traditional injection mechanism uses long casing grouting, which will result in poor grouting effect in locations with poor permeability due to dispersed grouting pressure.

[0003] Based on the above reasons, the utility model provides a coal mine water hazard prevention and control device. Utility Model Content

[0004] The utility model aims to provide a coal mine water hazard prevention and control device to solve the problems existing in the prior art.

[0005] To achieve the above purpose, the utility model provides the following solution: The utility model provides a coal mine water hazard prevention and control device, including:

[0006] A mixing box, wherein a feeding port is provided at the top of the mixing box and a stirring mechanism is installed in the mixing box;

[0007] A grouting pipe, one end of which is fixedly connected to the bottom wall of the mixing box, and a grouting pump is installed on the grouting pipe;

[0008] A grouting head, the grouting head comprises a grouting head body, the grouting head body is fixedly connected to the end of the grouting pipe, the outer wall of the grouting head body is rotatably connected with a mounting sleeve, the side wall of the mounting sleeve is provided with a plurality of side holes along the arc direction of the outer wall, the side wall of the grouting head body is provided with a plurality of diversion holes, the diversion holes are arranged one-to-one with the side holes, the inner wall of the mounting sleeve is provided with a plurality of plugging components, the plurality of the plugging components are arranged correspondingly with the plurality of the diversion holes, an electric slip ring is installed on the grouting pipe, and the electric slip ring rotor is fixedly connected with the mounting sleeve;

[0009] Wherein, one end of the grouting head body away from the grouting pipe is fixedly connected to a discharge pipe, and a control valve is installed on the discharge pipe.

[0010] According to the coal mine water hazard prevention and control device provided by the utility model, the stirring mechanism includes a mounting disk, and the mounting disk is provided with two groups. The two groups of mounting disks are symmetrically rotatably connected to the opposite side walls in the mixing box, and a plurality of mounting shafts are fixedly connected with circumferentially equal intervals between the two mounting disks. A plurality of stirring teeth are fixedly connected to the outer walls of the mounting shafts, and the stirring teeth on adjacent mounting shafts are staggered. A driving motor is fixedly connected to the outer wall of the mixing box, and the output shaft of the driving motor passes through the side wall of the mixing box and is fixedly connected to one of the mounting disks.

[0011] According to the coal mine water hazard prevention and control device provided by the utility model, the sealing component includes a sliding sleeve, an inner wall of the mounting sleeve is provided with a mounting groove, the axis of the mounting groove is perpendicular to the axis of the mounting sleeve, the sliding sleeve is fixedly connected in the mounting groove, one end of the sliding sleeve is slidably connected to a mounting rod, the end of the mounting rod is fixedly connected to a sealing ball, the sealing ball is correspondingly arranged between the diversion hole, a compression spring is arranged in the sliding sleeve, and the two ends of the compression spring are respectively fixedly connected to the bottom wall of the mounting groove and the end of the mounting rod.

[0012] According to the coal mine water hazard prevention and control device provided by the utility model, the number of the diversion holes is five, the angle between adjacent diversion holes is 30°-45°, and the side holes are arranged in one-to-one correspondence with the diversion holes.

[0013] According to the coal mine water hazard prevention and control device provided by the utility model, the edge of the end of the diversion hole is arranged as a cambered surface.

[0014] According to the coal mine water hazard prevention and control device provided by the utility model, a clamping block is fixedly connected to the inner wall of the installation sleeve, an annular clamping groove is opened on the outer wall of the grouting head body, and the clamping block is slidably connected in the annular clamping groove.

[0015] According to the coal mine water hazard prevention and control device provided by the utility model, a mounting frame is fixedly connected to the side wall of the mixing box, the driving motor is fixedly connected to the mounting frame, a through hole is opened on the side wall of the mixing box, the output shaft of the driving motor passes through the through hole and is fixedly connected to the mounting plate, and a sealing rubber ring is arranged between the inner wall of the through hole and the outer wall of the output shaft of the driving motor.

[0016] The utility model discloses the following technical effects:

[0017] When the utility model is used, the mixed raw material is put into the mixing box through the feed port, and then the mixed raw material is stirred by adding water through the stirring mechanism to prepare slurry for injection, the slurry is pumped out into the grouting pipe through the grouting pump, and then output through the discharge pipe at the end of the grouting head body to carry out large-area grouting work, and then the rotation of the mounting ring is controlled by the electric slip ring, the control valve is closed, and the plugging component is opened to make the side hole and the diversion hole connected respectively, thereby forming a diversion channel, and the diversion channel diverts the slurry to the side to output the slurry, so as to realize filling and injection of a small area. At the same time, because the side grouting pressure is greater than the grouting pressure of the discharge pipe, the slurry can be filled to the position with poor permeability, thereby ensuring the filling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the structure of the utility model coal mine water hazard prevention and control device;

[0020] Figure 2 It is a structural schematic diagram of the plugging component of the utility model.

[0021] Among them, 1. mixing box; 2. grouting pipe; 3. grouting head body; 4. mounting sleeve; 5. side hole; 6. diversion hole; 7. electric slip ring; 8. discharge pipe; 9. control valve; 10. mounting plate; 11. mounting shaft; 12. stirring tooth; 13. driving motor; 14. sliding sleeve; 15. mounting groove; 16. mounting rod; 17. sealing ball; 18. spring; 19. mounting frame; 20. grouting pump. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] Reference Figure 1-2 The utility model provides a coal mine water hazard prevention and control device, comprising:

[0025] A mixing box 1, wherein a feeding port is provided at the top of the mixing box 1, and a stirring mechanism is installed in the mixing box 1;

[0026] A grouting pipe 2, one end of which is fixedly connected to the bottom wall of the mixing box 1, and a grouting pump 20 is installed on the grouting;

[0027] The grouting head comprises a grouting head body 3, the grouting head body 3 is fixedly connected to the end of the grouting pipe 2, the outer wall of the grouting head body 3 is rotatably connected with a mounting sleeve 4, the side wall of the mounting sleeve 4 is provided with a plurality of side holes 5 along the arc direction of the outer wall, the side wall of the grouting head body 3 is provided with a plurality of diversion holes 6, the diversion holes 6 are arranged one by one with the side holes 5, the inner wall of the mounting sleeve 4 is provided with a plurality of plugging components, the plurality of plugging components are arranged correspondingly with the plurality of diversion holes 6, the grouting pipe 2 is provided with an electric slip ring 7, and the rotor of the electric slip ring 7 is fixedly connected with the mounting sleeve 4;

[0028] Among them, one end of the grouting head body 3 away from the grouting pipe 2 is fixedly connected to a discharge pipe 8, and a control valve 9 is installed on the discharge pipe 8.

[0029] When the utility model is used, the mixed raw material is put into the mixing box 1 through the feed port, and then the mixed raw material is stirred by adding water through the stirring mechanism to prepare slurry for injection. The slurry is pumped out into the grouting pipe 2 through the grouting pump 20, and then output through the discharge pipe 8 at the end of the grouting head body 3 to carry out large-area grouting work. Then, the rotation of the mounting ring is controlled by the electric slip ring 7, the control valve 9 is closed, and the blocking component is opened to make the side hole 5 and the diversion hole 6 connected respectively, thereby forming a diversion channel, and the diversion channel diverts the slurry to the side to output slurry, thereby realizing filling and injection of a small area. At the same time, since the side grouting pressure is greater than the grouting pressure of the discharge pipe 8, the slurry can be filled to the position with poor permeability to ensure the filling effect.

[0030] Further optimization scheme, the stirring mechanism includes a mounting disk 10, and the mounting disk 10 is provided with two groups. The two groups of mounting disks 10 are symmetrically rotatably connected to the opposite side walls in the mixing box 1. A plurality of mounting shafts 11 are fixedly connected with equal circumferential spacing between the two mounting disks 10. A plurality of stirring teeth 12 are fixedly connected to the outer wall of the mounting shaft 11. The stirring teeth 12 on adjacent mounting shafts 11 are staggered. A driving motor 13 is fixedly connected to the outer wall of the mixing box 1. The output shaft of the driving motor 13 passes through the side wall of the mixing box 1 and is fixedly connected to one of the mounting disks 10. The mounting disk 10 is controlled to rotate by the driving motor 13, and the rotation of the mounting disk 10 drives the mounting shaft 11 and the stirring teeth 12 on the mounting shaft 11 to rotate, so as to achieve mixing and stirring of the slurry.

[0031] Further optimization scheme, the plugging assembly includes a sliding sleeve 14, the inner wall of the mounting sleeve 4 is provided with a mounting groove 15, the axis of the mounting groove 15 is perpendicular to the axis of the mounting sleeve 4, the sliding sleeve 14 is fixedly connected in the mounting groove 15, one end of the sliding sleeve 14 is slidably connected with a mounting rod 16, the end of the mounting rod 16 is fixedly connected with a plugging ball 17, the plugging ball 17 is arranged correspondingly with the diversion hole 6, a compression spring 18 is arranged in the sliding sleeve 14, and the two ends of the compression spring 18 are respectively fixedly connected with the bottom wall of the mounting groove 15 and the end of the mounting rod 16. The number of the plugging assembly and the diversion hole 6 is adapted, and the side hole 5 and the plugging assembly are arranged on the same arc, and the angle between the side hole 5 and the plugging assembly is the same as the angle between the adjacent plugging assemblies, so that when the mounting sleeve 4 is rotated, the plugging heads of the plugging assembly enter the diversion holes 6 respectively, and when all the plugging balls 17 are misaligned with the diversion holes 6, all the side holes 5 correspond to the diversion holes 6 one by one, forming five diversion channels for filling grouting.

[0032] According to a further optimized solution, the number of the diversion holes 6 is five, the angle between adjacent diversion holes 6 is 30°-45°, and the side holes 5 and the diversion holes 6 are arranged in a one-to-one correspondence.

[0033] The angle between the diverter holes 6 is set between 30° and 45° so that when the plugging assembly is rotated to a certain angle, all the diverter holes 6 are in an open state, so that all the diverter holes 6 can be used to output slurry.

[0034] In a further optimized solution, the edge of the end of the diverter hole 6 is set as an arc surface. The outer edge of the diverter hole 6 is set as an arc surface, so that the blocking ball 17 will not encounter too much resistance when sliding out of the diverter hole 6.

[0035] According to a further optimized solution, a clamping block is fixedly connected to the inner wall of the mounting sleeve 4, and an annular clamping groove is provided on the outer wall of the grouting head body 3, in which the clamping block is slidably connected.

[0036] The arrangement of the clamping block and the annular clamping groove can ensure stable rotation between the mounting sleeve 4 and the grouting head body 3 to prevent the two from being separated. The cross-sectional shapes of the clamping block and the annular clamping groove are both isosceles trapezoidal structures, and a ball bearing that reduces friction can be arranged between the two to ensure sliding stability between the two.

[0037] A further optimized solution is that a mounting bracket 19 is fixedly connected to the side wall of the mixing box 1, and the driving motor 13 is fixedly connected to the mounting bracket 19. A through hole is opened on the side wall of the mixing box 1, and the output shaft of the driving motor 13 passes through the through hole and is fixedly connected to the mounting plate 10, and a sealing rubber ring is arranged between the inner wall of the through hole and the outer wall of the output shaft of the driving motor 13.

[0038] The drive motor 13 can be supported by the installation of the mounting frame 19 , and a sealing rubber ring is provided between the output shaft of the drive motor 13 and the through hole to ensure the sealing of the mixing box 1 .

[0039] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A coal mine water hazard prevention and control device, characterized in that: include: A mixing box (1), wherein a feeding port is provided at the top of the mixing box (1), and a stirring mechanism is installed in the mixing box (1); A grouting pipe (2), one end of which is fixedly connected to the bottom wall of the mixing box (1), and a grouting pump (20) is installed on the grouting pipe; A grouting head, the grouting head comprising a grouting head body (3), the grouting head body (3) being fixedly connected to the end of the grouting pipe (2), the outer wall of the grouting head body (3) being rotatably connected to a mounting sleeve (4), the side wall of the mounting sleeve (4) being provided with a plurality of side holes (5) along the arc direction of the outer wall, the side wall of the grouting head body (3) being provided with a plurality of diversion holes (6), the diversion holes (6) being arranged in a one-to-one correspondence with the side holes (5), the inner wall of the mounting sleeve (4) being provided with a plurality of plugging components, the plurality of the plugging components being arranged in a corresponding manner with the plurality of the diversion holes (6), the grouting pipe (2) being provided with an electric slip ring (7), the rotor of the electric slip ring (7) being fixedly connected to the mounting sleeve (4); Wherein, one end of the grouting head body (3) away from the grouting pipe (2) is fixedly connected to a discharge pipe (8), and a control valve (9) is installed on the discharge pipe (8).

2. A coal mine water hazard prevention and control device according to claim 1, characterized in that: The stirring mechanism comprises a mounting plate (10), wherein two groups of mounting plates (10) are provided, and the two groups of mounting plates (10) are symmetrically rotatably connected to opposite side walls in the mixing box (1), a plurality of mounting shafts (11) are fixedly connected at circumferentially equal intervals between the two mounting plates (10), a plurality of stirring teeth (12) are fixedly connected to the outer walls of the mounting shafts (11), and the stirring teeth (12) on adjacent mounting shafts (11) are staggeredly arranged, and a driving motor (13) is fixedly connected to the outer wall of the mixing box (1), and the output shaft of the driving motor (13) passes through the side wall of the mixing box (1) and is fixedly connected to one of the mounting plates (10).

3. A coal mine water hazard prevention and control device according to claim 1, characterized in that: The blocking component comprises a sliding sleeve (14), an inner wall of the mounting sleeve (4) is provided with a mounting groove (15), the axis of the mounting groove (15) is perpendicular to the axis of the mounting sleeve (4), the sliding sleeve (14) is fixedly connected in the mounting groove (15), one end of the sliding sleeve (14) is slidably connected to a mounting rod (16), the end of the mounting rod (16) is fixedly connected to a blocking ball (17), the blocking ball (17) is correspondingly arranged between the blocking ball (17) and the diversion hole (6), a compression spring (18) is arranged in the sliding sleeve (14), and the two ends of the compression spring (18) are respectively fixedly connected to the bottom wall of the mounting groove (15) and the end of the mounting rod (16).

4. A coal mine water hazard prevention and control device according to claim 1, characterized in that: The number of the diversion holes (6) is five, and the angle between adjacent diversion holes (6) is 30°-45°. The side holes (5) and the diversion holes (6) are arranged in one-to-one correspondence.

5. A coal mine water hazard prevention and control device according to claim 1, characterized in that: The end edge of the diversion hole (6) is arranged as a curved surface.

6. A coal mine water hazard prevention and control device according to claim 1, characterized in that: The inner wall of the installation sleeve (4) is fixedly connected with a clamping block, the outer wall of the grouting head body (3) is provided with an annular clamping groove, and the clamping block is slidably connected in the annular clamping groove.

7. A coal mine water hazard prevention and control device according to claim 2, characterized in that: A mounting frame (19) is fixedly connected to the side wall of the mixing box (1), and the drive motor (13) is fixedly connected to the mounting frame (19). A through hole is opened on the side wall of the mixing box (1), and the output shaft of the drive motor (13) passes through the through hole and is fixedly connected to the mounting plate (10). A sealing rubber ring is provided between the inner wall of the through hole and the outer wall of the output shaft of the drive motor (13).

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