Drainage device for water burst point of surface working face
By employing a dual-layer filtration structure and a triple-layer filtration design, the problem of clogging and inconvenient cleaning of the drainage device at the water inflow point on the well face has been solved, achieving both high-efficiency filtration and convenient cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YIJINHUOLUO BANNER HUS COAL CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-12
AI Technical Summary
Existing wellhead drainage devices are prone to clogging of filter holes, affecting the filtration capacity and are inconvenient to clean.
It adopts a double-layer filtration structure, including a filter screen and a filter barrel, combined with a support design of support ring and support plate, and a three-layer filtration system with a water pump and water pipe. Impurities are discharged through the guide ring and the equipment is cleaned through the water inlet.
It improves the stability and convenience of the draining device, avoids clogging problems, and enhances the filtration effect and cleaning convenience.
Smart Images

Figure CN224228718U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mining technology, specifically a drainage device for water inflow points in a working face. Background Technology
[0002] Due to the different geological conditions, hydrogeological conditions, and climatic conditions of coal seams in my country, the water-filling conditions of coal seams are complex. Therefore, different types of water sources, such as old mine water, old working water, and surface water during the flood season, all have different degrees of risk of water inrush.
[0003] The existing Chinese utility model patent with publication number CN218373962U discloses a drainage device for rapid water filtration, including a load-bearing device and a filter cloth. A conical head is fixedly installed on the bottom surface of the load-bearing device. This utility model utilizes a load-bearing device, a cylinder, and a conical head. In use, the entire device is composed of the load-bearing device, the cylinder, and the conical head, resulting in a very simple overall structure that facilitates subsequent use and allows for reuse. During operation, excavators, loaders, or other machinery are used to strike the load-bearing device, driving the entire device into the tailings aquifer. The conical head design reduces resistance during impact and protects the cylinder. After the drainage device enters the tailings aquifer, water seeps into the cylinder through the filter holes. The filter cloth inside the filter holes ensures that only water seeps into the cylinder. A common drainage pump is then used to extract the seepage water, accelerating drainage and quickly draining the tailings within the leakage radius. It has the advantages of simple structure, convenience, practicality, and good filtration effect.
[0004] The aforementioned rapid water filtration and dewatering device, by setting a filter cloth inside the filter holes, is prone to causing fine impurities to clog one side of the filter cloth, resulting in filter hole blockage and affecting the water filtration volume. Furthermore, it is inconvenient to clean during subsequent recycling. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides a drainage device for water inflow points on a well working face, which has advantages such as easy cleaning and good filtration effect, thus solving the aforementioned technical problems.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a device for draining water inflow points at a well working face, comprising:
[0009] An orifice pipe has a threaded ring movably connected to its inner bottom. A connecting ring is fixedly installed at the bottom of the threaded ring. A support ring is fixedly installed inside the connecting ring. An installation ring is fixedly installed on the outer side of the bottom of the connecting ring. A water inlet is fixedly installed inside the installation ring. A filter screen is fixedly installed at the bottom of the installation ring. A filter bucket is fixedly installed inside the bottom of the support ring. A support plate is fixedly installed on the outer side of the filter bucket. A fixing ring is fixedly installed at the bottom of the filter bucket. A guide ring is fixedly installed at the top of the fixing ring. A splicing pipe is fixedly installed at the bottom of the fixing ring. A threaded pipe is movably connected inside the splicing pipe. A cone is fixedly installed at the bottom of the threaded pipe.
[0010] As a preferred embodiment of this utility model, a water pumping pipe is movably connected inside the filter bucket. The water pumping pipe has a cylindrical structure and is used for pumping water.
[0011] As a preferred embodiment of this utility model, a filter hole is fixedly installed in the middle of the water pumping pipe, and the filter hole is a structure used for filtration.
[0012] As a preferred embodiment of this utility model, a water delivery pipe is fixedly installed on the top of the pumping pipe, and the water delivery pipe is a structure used for water delivery.
[0013] As a preferred embodiment of this utility model, a water pump is fixedly installed on one side of the water supply pipe, and the water pump is a structure used for pumping water.
[0014] As a preferred embodiment of this utility model, a support frame is fixedly installed at the bottom of the water pump, and the support frame is a structure for support.
[0015] As a preferred embodiment of this utility model, a water outlet pipe is fixedly installed on one side of the water pump, and the water outlet pipe is a structure for discharging water.
[0016] Compared with the prior art, this utility model provides a device for draining water inflow points in well working faces, which has the following beneficial effects:
[0017] 1. This utility model uses a threaded ring to fit and connect the filter screen and the orifice pipe, and a support ring to connect the filter barrel. The filter screen and the filter barrel are further supported by a support plate, thereby improving the stability of the wellhead water inflow point drainage device. After the water is filtered twice by the filter screen and the filter barrel, it is finally filtered three times by the filter holes inside the pumping pipe, which improves the anti-clogging effect of the wellhead water inflow point drainage device.
[0018] 2. This utility model allows impurities to be guided out through the guide ring at the top of the fixing ring via the gap between the filter screen and the filter barrel. When the equipment needs cleaning, the water gun is inserted into the water inlet in the mounting ring, and the water flow can push the device in the gap between the filter barrel and the filter screen to clean it. This improves the convenience and practicality of the well surface water inflow point drainage device, while avoiding the problem of easy clogging. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the orifice tube of this utility model;
[0021] Figure 3 This is a schematic diagram of the filter barrel of this utility model;
[0022] Figure 4 This is a schematic diagram of the water pumping pipe of this utility model.
[0023] The components are as follows: 1. Orifice pipe; 11. Threaded ring; 12. Connecting ring; 13. Support ring; 14. Mounting ring; 15. Water inlet; 16. Filter screen; 2. Filter barrel; 21. Support plate; 22. Fixing ring; 23. Guide ring; 24. Splicing pipe; 25. Threaded pipe; 26. Conical head; 3. Pumping pipe; 31. Filter hole; 32. Water delivery pipe; 33. Pump; 34. Support frame; 35. Water outlet pipe. Detailed Implementation
[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0025] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] Please see Figure 1 - Figure 4 In this embodiment, a wellhead water inflow point drainage device includes: an orifice pipe 1, a threaded ring 11 movably connected to the bottom of the orifice pipe 1, a connecting ring 12 fixedly installed at the bottom of the threaded ring 11, a support ring 13 fixedly installed inside the connecting ring 12, an installation ring 14 fixedly installed on the outer side of the bottom of the connecting ring 12, a water inlet 15 fixedly installed inside the installation ring 14, and a filter screen 16 fixedly installed at the bottom of the installation ring 14.
[0028] Specifically, the orifice pipe 1 and the connecting ring 12 are fitted together by the threaded ring 11, the filter barrel 2 is supported by the support ring 13, the mounting ring 14 is supported by the connecting ring 12, and the filter screen 16 is supported by the mounting ring 14.
[0029] A filter barrel 2 is fixedly installed inside the bottom of the support ring 13. A support plate 21 is fixedly installed on the outside of the filter barrel 2. A fixing ring 22 is fixedly installed at the bottom of the filter barrel 2. A guide ring 23 is fixedly installed at the top of the fixing ring 22. A splicing pipe 24 is fixedly installed at the bottom of the fixing ring 22. A threaded pipe 25 is movably connected inside the splicing pipe 24. A cone head 26 is fixedly installed at the bottom of the threaded pipe 25.
[0030] Specifically, the filter barrel 2 and the filter screen 16 are supported by the support plate 21, the threaded pipe 25 and the splicing pipe 24 are fitted together, and the impurities can be guided out by the top guide ring 23 of the fixing ring 22.
[0031] The filter bucket 2 is internally connected to a water pump 3. The water pump 3 has a cylindrical structure. A filter hole 31 is fixedly installed in the middle of the water pump 3. A water delivery pipe 32 is fixedly installed at the top of the water pump 3. A water pump 33 is fixedly installed on one side of the water delivery pipe 32. A support frame 34 is fixedly installed at the bottom of the water pump 33. A water outlet pipe 35 is fixedly installed on one side of the water pump 33.
[0032] Specifically, the water pump 33 is supported by the support frame 34. The operation of the water pump 33 allows water to pass through the filter hole 31 in the middle of the water pumping pipe 3 and enter the interior of the water supply pipe 32, and finally be sent out from the water outlet pipe 35.
[0033] In use, the wellhead water draining device is first placed in the designated position. The connecting ring 12 and the orifice pipe 1 are connected by the threaded ring 11 at the top of the connecting ring 12. The connecting ring 12 supports the filter screen 16, and the support ring 13 supports the filter barrel 2. The filter screen 16 and the filter barrel 2 are supported by the support plate 21, thus improving the stability of the wellhead water draining device. After the filter screen 16 filters the outside water, the water undergoes secondary filtration through the filter barrel 2, improving the filtration effect. Impurities between the filter screen 16 and the filter barrel 2 move downwards through the gap between the support plate 21 and are finally guided out by the guide ring 23 at the top of the fixing ring 22, thus preventing clogging of the wellhead water draining device. To address the issue of clogging, when the wellhead water inflow point drainage device is being cleaned and recycled, the water gun is aimed at the water inlet 15 in the middle of the mounting ring 14, thereby injecting water into the gaps between the support plates 21. This washes away impurities in the gaps of the filter screen 16 and the filter bucket 2, improving the convenience and practicality of the wellhead water inflow point drainage device and avoiding the problem of inconvenient cleaning. The water pump 33 is supported by the support frame 34. The operation of the water pump 33 allows water to be filtered through the surrounding filter holes 31 via the water pumping pipe 3 and then pumped into the interior of the water delivery pipe 32. The water undergoes a third filtration through the filter holes 31, improving the anti-clogging effect of the wellhead water inflow point drainage device. Finally, the water is delivered through the outlet pipe 35, further enhancing the practicality and convenience of the wellhead water inflow point drainage device.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A device for draining water inflow points at a well working face, characterized in that, The wellhead water inflow point drainage device includes an orifice pipe (1), with a threaded ring (11) movably connected to the bottom of the orifice pipe (1). A connecting ring (12) is fixedly installed at the bottom of the threaded ring (11). A support ring (13) is fixedly installed inside the connecting ring (12). An installation ring (14) is fixedly installed on the outer side of the bottom of the connecting ring (12). A water inlet (15) is fixedly installed inside the installation ring (14). A filter screen (16) is fixedly installed at the bottom of the installation ring (14). A filter barrel (2) is fixedly installed inside the bottom of the support ring (13), a support plate (21) is fixedly installed on the outside of the filter barrel (2), a fixing ring (22) is fixedly installed at the bottom of the filter barrel (2), a guide ring (23) is fixedly installed at the top of the fixing ring (22), a splicing pipe (24) is fixedly installed at the bottom of the fixing ring (22), a threaded pipe (25) is movably connected inside the splicing pipe (24), and a cone head (26) is fixedly installed at the bottom of the threaded pipe (25).
2. The wellhead water inflow point drainage device according to claim 1, characterized in that: The filter barrel (2) is movably connected to a water pumping pipe (3), which has a cylindrical structure.
3. A wellhead water inflow point drainage device according to claim 2, characterized in that: A filter hole (31) is fixedly installed in the middle of the water pumping pipe (3).
4. A wellhead water inflow point drainage device according to claim 3, characterized in that: A water delivery pipe (32) is fixedly installed on the top of the pumping pipe (3).
5. A wellhead water inflow point drainage device according to claim 4, characterized in that: A water pump (33) is fixedly installed on one side of the water supply pipe (32).
6. A wellhead water inflow point drainage device according to claim 5, characterized in that: The bottom of the water pump (33) is fixedly installed with a support frame (34).
7. A wellhead water inflow point drainage device according to claim 6, characterized in that: A water outlet pipe (35) is fixedly installed on one side of the water pump (33).