Drainage device for accumulated water in goaf

By designing a goaf water accumulation drainage device containing filter plates and high-pressure water pipes, the problem of gravel damage to the water pump is solved, efficient water pumping and rapid maintenance are achieved, and the scope of application is expanded.

CN119163470APending Publication Date: 2024-12-20129 EXPLORATION TEAM GENERAL ADMINISTRATION OF CHINA COAL GEOLOGY
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202411581180.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2024-12-20

AI Technical Summary

Technical Problem

During the water accumulation and drainage process in the coal mine goaf, gravel is prone to enter the water pump, resulting in damage to the pump, and the existing technology is difficult to effectively solve this problem.

Method used

A goaf water accumulation drainage device is designed, including a tank body, a filter plate, a negative pressure pipe and a high-pressure water pipe. The filter plate separates the liquid outlet cavity and the liquid inlet cavity. The negative pressure pipe is connected to the liquid outlet cavity. The high-pressure water pipe is used for Flush the filter plate to prevent gravel from entering the pump and pump water through negative pressure.

Benefits of technology

Effectively prevent gravel from damaging the drain pump, expanding the scope of application of the device, and rapid maintenance through removable connections and high-pressure water flushing, improving maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119163470A_ABST
    Figure CN119163470A_ABST
Patent Text Reader

Abstract

The invention 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 device has the beneficial effects that the filter plate plays a role in filtering, the draining pump is prevented from being damaged by broken stone, the device can pump water at the position higher than water accumulation through the arrangement of the negative pressure pipe, and the application range of the device is widened.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention belongs to the technical field of coal mine drainage, and in particular relates to a drainage device for water accumulation in goaf areas. 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 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. With the liquid, the gravel enters the water pump and damages the blades, causing damage to the water pump. Summary of the invention

[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] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] A device for draining water from a goaf area, 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, wherein the filter plate is provided with filter holes, wherein the filter plate divides the cavity in the tank body into a liquid outlet cavity and a liquid inlet cavity, wherein a liquid inlet pipe connected to the liquid inlet cavity is fixedly disposed on the tank body, and a liquid outlet pipe connected to the liquid outlet cavity is fixedly disposed on the tank body, and the liquid outlet pipe is connected to the liquid inlet end of the drainage pump;

[0008] A negative pressure tube, the negative pressure tube is connected to the liquid outlet cavity, and the negative pressure tube is connected to 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 comprises 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, and the mounting tube is fixedly mounted on the inner side of the tank body;

[0012] A limit plate is fixedly arranged on the outer side of the annular plate, the outer diameter of the limit 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 a slot corresponding to the limit plate is opened on the upper ring;

[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 passes through the cover plate, and one end of the connecting rod away from the annular plate is detachably connected to the cover plate.

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

[0016] Furthermore, a positioning column is fixedly provided 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 fixedly arranged on the cover plate, the lower end of which penetrates the cover plate and is located inside the drainage cavity, a horizontal pipe is fixedly arranged at the lower end of the high-pressure water pipe, the horizontal pipe is communicated with 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, the tank body is fixedly provided with supporting legs.

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

[0024] (1) In the goaf water drainage device described in the present invention, 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 widening the scope of application of the device.

[0025] (2) In the goaf water drainage device described in the present invention, the filter plate is connected to the connecting rod. By moving and rotating the connecting rod and starting the 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 constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

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

[0028] Figure 2 A schematic diagram of a cross-sectional structure of a device according to an embodiment of the present invention;

[0029] Figure 3 For the embodiment of the present invention 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 seat and the annular plate according to an embodiment of the present invention;

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

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

[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 in the embodiments may 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 positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like 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 the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

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

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

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

[0041] 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 provided with a liquid inlet pipe 103 connected to the liquid inlet cavity, and the tank body 1 is provided with a liquid outlet pipe 101 connected to the liquid outlet cavity, and 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 the negative pressure pipe 201 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 communicated with 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 are but 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 through 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 arranged 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 is the same as b, the lower ring 401 supports the annular plate 5, and the upper ring 402 limits the limit 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 penetrate the cover plate 2 , and one 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 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 has connecting holes, and studs 503 are fixedly provided on the cross plate 502. The studs 503 pass through the connecting holes of the cross bar 301 at the lower end of the connecting rod 3 and are threadedly connected with nuts, so as to facilitate 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. A threaded hole is formed 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, and 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, and 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, 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 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 performance 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 the maintenance efficiency.

[0053] The tank body 1 is fixedly provided with supporting legs 102 .

[0054] Working process:

[0055] When this scheme 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 water is pumped into the liquid inlet chamber by the siphon effect. 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 to pump water into the liquid inlet chamber. The water level in the liquid inlet chamber rises to the liquid outlet chamber. The filter plate 6 plays a filtering role to prevent gravel from entering the drainage pump. The drainage pump is turned on to pump 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 position of the filter plate 6 corresponds to that of the cross pipe 7, turn on the high-pressure water pump, and flush the filter plate 6 with high-pressure water flow, 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 aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. 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 specification 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 substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope 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), wherein the 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, and the tank body (1) is provided with a liquid inlet pipe (103) connected to the liquid inlet cavity, and the tank body (1) is provided with a liquid outlet pipe (101) connected to the liquid outlet cavity, and the liquid outlet pipe (101) is connected to the liquid inlet end of the drainage pump; A negative pressure pipe (201), the negative pressure pipe (201) being in communication with the liquid outlet cavity, and the negative pressure pipe (201) being in communication with an air inlet end of the negative pressure device; A slag discharge pipe (104), wherein the 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 arranged 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).

3. A 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 penetrate 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), cross bars (301) are fixedly provided at both ends of the connecting rod (3), a connecting hole is provided on the cross bar (301), a stud (503) is fixedly provided on the cross plate (502), and 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: The tank body (1) is fixedly provided with supporting legs (102).