Drainage device for accumulated water in goaf

Abstract

The utility model provides a goaf accumulated water drainage device which comprises a tank body, and a cover plate for sealing an opening of the tank body is arranged at the upper end of the tank body; a filtering hole is formed in the filtering plate, a cavity in the tank body is divided into a liquid outlet cavity and a liquid inlet cavity by the filtering plate, a liquid inlet pipe communicated with the liquid inlet cavity is fixedly arranged on the tank body, a liquid outlet pipe communicated with the liquid outlet cavity is fixedly arranged on the tank body, and the liquid outlet pipe is communicated with the liquid inlet end of the drainage pump; the negative pressure pipe is communicated with the liquid outlet cavity, and the negative pressure pipe is communicated with the air inlet end of negative pressure equipment; and the deslagging pipe is communicated with the bottom end of the liquid inlet cavity. The drainage pump has the advantages that the filter plate plays a role in filtering, the drainage pump is prevented from being damaged by broken stones, the device can pump water at the position higher than the water accumulation position due to the arrangement of the negative pressure pipe, and the application range of the device is widened.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine drainage, in particular to a goaf area water drainage device. Background Art

[0002] During the mining process of coal mines, underground coal resources need to be mined and transported away. Therefore, during the excavation process, as the coal is continuously transported out, the underground is in a state of hollow or cavity. In this state, an iron ore goaf is formed underground. The accumulation of water in the goaf is one of the major hidden dangers of water disasters in iron ore mines and other mines. The current water in the goaf is directly extracted by a water pump. During use, the following problems exist: gravel is easily present in the accumulated water. The gravel enters the water pump with the liquid and damages the blades, causing damage to the water pump. Utility Model Content

[0003] In view of this, the present invention aims to provide a drainage device for water accumulation in goaf, in order to solve at least one of the above-mentioned technical problems.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0005] A device for draining water from a goaf, comprising:

[0006] A tank body, wherein the upper end of the tank body is provided with a cover plate for closing the tank body opening;

[0007] A filter plate having filter holes formed therein, the filter plate dividing the cavity in the tank body into a liquid outlet cavity and a liquid inlet cavity, the tank body being fixedly provided with a liquid inlet pipe communicating with the liquid inlet cavity, the tank body being fixedly provided with a liquid outlet pipe communicating with the liquid outlet cavity, the liquid outlet pipe being connected to the liquid inlet end of the drainage pump;

[0008] A negative pressure tube, the negative pressure tube being connected to the liquid outlet cavity and the air inlet end of the negative pressure device;

[0009] A slag discharge pipe is connected to the bottom end of the liquid inlet cavity.

[0010] Furthermore, the filter plate is fixedly mounted on the annular plate, and the annular plate is detachably connected to the mounting seat;

[0011] The mounting seat includes an upper ring and a lower ring. The inner diameter of the upper ring is smaller than the inner diameter of the lower ring. The outer side of the upper ring and the outer side of the lower ring are fixedly connected by a mounting tube. The outer diameter of the mounting tube matches the inner diameter of the tank body. The mounting tube is fixedly installed on the inner side of the tank body.

[0012] A limiting plate is fixedly provided on the outer side of the annular plate, the outer diameter of the limiting plate matches the inner diameter of the mounting tube, the outer diameter of the annular plate matches the inner diameter of the upper ring, and the upper ring is provided with a slot corresponding to the limiting plate;

[0013] The limiting plate is located between the upper ring and the lower ring.

[0014] Furthermore, the annular plate is fixedly connected to one end of the connecting rod, the other end of the connecting rod is arranged through the cover plate, and the end of the connecting rod away from the annular plate is detachably connected to the cover plate.

[0015] Furthermore, a cross plate is fixed on the inner side of the annular plate, cross bars are fixed at both ends of the connecting rod, connecting holes are opened on the cross bars, and studs are fixed on the cross plate. The studs pass through the connecting holes of the cross bars at the lower end of the connecting rod and are threadedly connected to the nuts.

[0016] Furthermore, a positioning column is fixed on the cover plate, a threaded hole is opened on the positioning column, a connecting bolt is provided in the connecting hole of the cross bar at the upper end of the connecting rod, and the connecting bolt is threadedly connected to the positioning column.

[0017] Furthermore, a high-pressure water pipe is fixed on the cover plate, the lower end of the high-pressure water pipe passes through the cover plate and is located inside the drainage cavity, a horizontal pipe is fixed on the lower end of the high-pressure water pipe, the horizontal pipe is connected to the lower end of the high-pressure water pipe, both ends of the horizontal pipe are closed, and a water spray hole corresponding to the filter plate is opened on the horizontal pipe;

[0018] The upper end of the high-pressure water pipe is communicated with the liquid outlet end of the high-pressure water pump.

[0019] Furthermore, a sealing ring is provided between the connecting rod and the cover plate.

[0020] Furthermore, a sealing gasket is provided between the cover plate and the upper end of the tank body.

[0021] Furthermore, a flange is fixedly provided on the outer side of the upper end of the tank body, and the flange is connected to the cover plate by mounting bolts.

[0022] Furthermore, support legs are fixedly provided on the tank body.

[0023] Compared with the prior art, the goaf water drainage device described in the present invention has the following beneficial effects:

[0024] (1) The utility model discloses a device for draining water from a goaf. The filter plate plays a filtering role to prevent gravel from damaging the drainage pump. The arrangement of the negative pressure pipe enables the device to pump water at a position higher than the accumulated water, thereby broadening the scope of application of the device.

[0025] (2) The utility model discloses a device for draining water from a goaf, wherein the filter plate is connected to a connecting rod. By moving and rotating the connecting rod and turning on a high-pressure water pump to flush the filter plate, the device can be quickly maintained, thereby improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of the device according to an embodiment of the present utility model;

[0028] Figure 2 This is a schematic diagram of the cross-sectional structure of the device according to an embodiment of the present utility model;

[0029] Figure 3 For the embodiment of the present utility model Figure 2 Schematic diagram of the structure at A in the middle;

[0030] Figure 4 This is a schematic diagram of the three-dimensional structure of the mounting base and the annular plate according to an embodiment of the present utility model;

[0031] Figure 5 This is a schematic diagram of the three-dimensional structure of the mounting base according to an embodiment of the present utility model;

[0032] Figure 6 This is a schematic diagram of the three-dimensional structure of the annular plate according to an embodiment of the present utility model.

[0033] Description of reference numerals:

[0034] 1. Tank body; 2. Cover plate; 3. Connecting rod; 4. Mounting seat; 5. Ring plate; 6. Filter plate; 7. Horizontal tube; 101. Liquid outlet pipe; 102. Support leg; 103. Liquid inlet pipe; 104. Slag discharge pipe; 201. Negative pressure pipe; 202. High-pressure water pipe; 203. Positioning column; 301. Horizontal rod; 401. Lower ring; 402. Upper ring; 403. Slot; 404. Mounting tube; 501. Limit plate; 502. Cross plate; 503. Stud. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, 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 cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0037] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0038] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0039] like Figures 1 to 6 As shown, a device for draining water from a goaf includes:

[0040] A tank body 1, with a cover plate 2 at the upper end of the tank body 1 for closing the opening of the tank body 1;

[0041] The filter plate 6 has filter holes formed thereon. The filter plate 6 divides the cavity in the tank body 1 into a liquid outlet cavity and a liquid inlet cavity. The tank body 1 is fixedly provided with a liquid inlet pipe 103 communicating with the liquid inlet cavity. The tank body 1 is fixedly provided with a liquid outlet pipe 101 communicating with the liquid outlet cavity. The liquid outlet pipe 101 is connected to the liquid inlet end of the drainage pump.

[0042] The negative pressure pipe 201 is connected to the liquid outlet cavity and is connected to the air inlet end of the negative pressure device; the negative pressure device is but not limited to the existing high-power Roots blower or vacuum pump.

[0043] The slag discharge pipe 104 is connected to the bottom end of the liquid inlet cavity.

[0044] Valves are provided on the negative pressure pipe 201 , the liquid inlet pipe 103 , the liquid outlet pipe 101 , the high-pressure water pipe 202 , and the slag discharge pipe 104 . The valves may be, but are not limited to, existing electromagnetic valves.

[0045] The filter plate 6 is fixedly mounted on the annular plate 5, and the annular plate 5 is detachably connected to the mounting seat 4; the mounting seat 4 includes an upper ring 402 and a lower ring 401, the inner diameter of the upper ring 402 is smaller than the inner diameter of the lower ring 401, the outer side of the upper ring 402 and the outer side of the lower ring 401 are fixedly connected by a mounting tube 404, the outer diameter of the mounting tube 404 matches the inner diameter of the tank body 1, and the mounting tube 404 is fixedly mounted on the inner side of the tank body 1; a limiting plate 501 is fixedly provided on the outer side of the annular plate 5, the outer diameter of the limiting plate 501 matches the inner diameter of the mounting tube 404, the outer diameter of the annular plate 5 matches the inner diameter of the upper ring 402, and a slot 403 corresponding to the limiting plate 501 is opened on the upper ring 402; the limiting plate 501 is located between the upper ring 402 and the lower ring 401. The sum of the thicknesses of the annular plate 5 and the filter plate 6 is a, the distance between the upper ring 402 and the lower ring 401 is b, a and b are the same, the lower ring 401 supports the annular plate 5, and the upper ring 402 limits the limiting plate 501.

[0046] The annular plate 5 is fixedly connected to one end of the connecting rod 3 , the other end of the connecting rod 3 is arranged to pass through the cover plate 2 , and the end of the connecting rod 3 away from the annular plate 5 is detachably connected to the cover plate 2 .

[0047] A cross plate 502 is fixed to the inner side of the annular plate 5, and cross bars 301 are fixed at both ends of the connecting rod 3. A connecting hole is opened on the cross bar 301, and a stud 503 is fixed on the cross plate 502. The stud 503 passes through the connecting hole of the cross bar 301 at the lower end of the connecting rod 3 and is threadedly connected to the nut, which facilitates the disassembly of the annular plate 5 and the replacement of the filter plate 6.

[0048] A positioning column 203 is fixed on the cover plate 2, and a threaded hole is opened on the positioning column 203. A connecting bolt is provided in the connecting hole of the cross bar 301 at the upper end of the connecting rod 3. The connecting bolt is threadedly connected to the positioning column 203. The positioning column 203 prevents the connecting rod 3 from rotating.

[0049] A high-pressure water pipe 202 is fixedly provided on the cover plate 2. The lower end of the high-pressure water pipe 202 passes through the cover plate 2 and is located on the inner side of the drainage cavity. A transverse pipe 7 is fixedly provided at the lower end of the high-pressure water pipe 202. The transverse pipe 7 is connected to the lower end of the high-pressure water pipe 202. Both ends of the transverse pipe 7 are closed. A water spray hole corresponding to the filter plate 6 is opened on the transverse pipe 7. The upper end of the high-pressure water pipe 202 is connected to the liquid outlet end of the high-pressure water pump.

[0050] A sealing ring is provided between the connecting rod 3 and the cover plate 2 to improve the sealing between the connecting rod 3 and the cover plate 2.

[0051] A sealing gasket is provided between the cover plate 2 and the upper end of the tank body 1 , thereby improving the sealing performance between the cover plate 2 and the upper end of the tank body 1 .

[0052] A flange is fixedly provided on the outer side of the upper end of the tank body 1, and the flange is connected to the cover plate 2 by mounting bolts, which facilitates the installation of the cover plate 2 and improves maintenance efficiency.

[0053] Support legs 102 are fixedly provided on the tank body 1 .

[0054] Working process:

[0055] When this solution is implemented, the liquid inlet pipe 103 is connected to one end of the hose, and the other end of the hose is inserted below the liquid level of the water accumulated in the goaf. If the water accumulated in the goaf is higher than the device, the siphon effect is used to pump the water into the liquid inlet cavity. If the water accumulated in the goaf is lower than the device, the negative pressure device is turned on to create negative pressure in the cavity of the water tank body 1, and the water is pumped into the liquid inlet cavity. The water level in the liquid inlet cavity rises to the liquid outlet cavity, and the filter plate 6 plays a filtering role to prevent gravel from entering the drainage pump. The drainage pump is turned on to pump the water to the designated position. When the filter hole of the filter plate 6 is blocked, loosen the connecting bolts, rotate the connecting rod 3 to align the limit plate 501 with the slot 403, move the connecting rod 3 upward, so that the filter plate 6 corresponds to the position of the cross pipe 7, turn on the high-pressure water pump, and flush the filter plate 6 with high-pressure water, thereby improving maintenance efficiency.

[0056] The negative pressure equipment can work continuously at negative pressure, or it can work periodically, that is, negative pressure is applied after the water is pumped to a certain level. The drainage pump stops working after pumping water, and the drainage pump and negative pressure equipment work alternately.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for draining water from a goaf, characterized in that: include: A tank body (1), wherein the upper end of the tank body (1) is provided with a cover plate (2) for closing the opening of the tank body (1); A filter plate (6) is provided with filter holes, and the filter plate (6) divides the cavity in the tank body (1) into a liquid outlet cavity and a liquid inlet cavity. The tank body (1) is fixedly provided with a liquid inlet pipe (103) communicating with the liquid inlet cavity, and the tank body (1) is fixedly provided with a liquid outlet pipe (101) communicating with the liquid outlet cavity, and the liquid outlet pipe (101) is communicated with the liquid inlet end of the drainage pump; A negative pressure tube (201), the negative pressure tube (201) is in communication with the liquid outlet cavity, and the negative pressure tube (201) is in communication with the air inlet end of the negative pressure device; A slag discharge pipe (104) is connected to the bottom end of the liquid inlet cavity.

2. The device for draining water from a goaf according to claim 1, characterized in that: The filter plate (6) is fixedly mounted on the annular plate (5), and the annular plate (5) is detachably connected to the mounting seat (4); The mounting seat (4) comprises an upper ring (402) and a lower ring (401); the inner diameter of the upper ring (402) is smaller than the inner diameter of the lower ring (401); the outer side of the upper ring (402) and the outer side of the lower ring (401) are fixedly connected via a mounting tube (404); the outer diameter of the mounting tube (404) matches the inner diameter of the tank body (1); and the mounting tube (404) is fixedly mounted on the inner side of the tank body (1); A limiting plate (501) is fixedly provided on the outer side of the annular plate (5), the outer diameter of the limiting plate (501) matches the inner diameter of the mounting tube (404), the outer diameter of the annular plate (5) matches the inner diameter of the upper ring (402), and the upper ring (402) is provided with a slot (403) corresponding to the limiting plate (501); The limiting plate (501) is located between the upper ring (402) and the lower ring (401).

3. The device for draining water from a goaf according to claim 2, characterized in that: The annular plate (5) is fixedly connected to one end of the connecting rod (3), the other end of the connecting rod (3) is arranged to pass through the cover plate (2), and the end of the connecting rod (3) away from the annular plate (5) is detachably connected to the cover plate (2).

4. The device for draining water from a goaf according to claim 3, characterized in that: A cross plate (502) is fixedly provided on the inner side of the annular plate (5), and cross bars (301) are fixedly provided at both ends of the connecting rod (3). The cross bar (301) is provided with a connecting hole, and a stud (503) is fixedly provided on the cross plate (502). The stud (503) passes through the connecting hole of the cross bar (301) at the lower end of the connecting rod (3) and is threadedly connected to a nut.

5. The device for draining water from a goaf according to claim 4, characterized in that: A positioning column (203) is fixedly provided on the cover plate (2), a threaded hole is provided on the positioning column (203), a connecting bolt is provided in the connecting hole of the upper end cross bar (301) of the connecting rod (3), and the connecting bolt is threadedly connected to the positioning column (203).

6. The device for draining water from a goaf according to claim 3, characterized in that: A high-pressure water pipe (202) is fixedly provided on the cover plate (2), the lower end of the high-pressure water pipe (202) passes through the cover plate (2) and is located inside the drainage cavity, a transverse pipe (7) is fixedly provided at the lower end of the high-pressure water pipe (202), the transverse pipe (7) is in communication with the lower end of the high-pressure water pipe (202), both ends of the transverse pipe (7) are closed, and a water spray hole corresponding to the filter plate (6) is opened on the transverse pipe (7); The upper end of the high-pressure water pipe (202) is in communication with the liquid outlet of the high-pressure water pump.

7. The device for draining water from a goaf according to claim 3, characterized in that: A sealing ring is provided between the connecting rod (3) and the cover plate (2).

8. The device for draining water from a goaf according to claim 1, characterized in that: A sealing gasket is provided between the cover plate (2) and the upper end of the tank body (1).

9. The device for draining water from a goaf according to claim 1, characterized in that: A flange is fixedly provided on the outer side of the upper end of the tank body (1), and the flange is connected to the cover plate (2) via mounting bolts.

10. The device for draining water from a goaf according to claim 1, characterized in that: Support legs (102) are fixedly provided on the tank body (1).

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