Water collecting and draining device for open pit coal mine water draining and draining directional drilling

Abstract

The utility model discloses a water collecting and draining device for open pit coal mine water draining and draining directional drilling. The first end face is arranged at one end of the body, and a hole is formed in the first end face; the second end face is arranged at one end of the body, and the second end face and the first end face are symmetrically arranged; the first filter screen is connected with the end surface II and the end surface I; the second filter screen is connected with the ground and the end face I, and the second filter screen and the first filter screen are designed in a concentric circle; the water collecting cage is arranged in the center of the body, and the water collecting cage and the second filter screen are designed to be concentric circles; the body is placed under a side slope, impurities in underground water are filtered through the first filter screen and the second filter screen, the filtered underground water enters the water collection cage, the filtered underground water is discharged through the drainage pump, and continuous water collection and drainage are kept.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of open coal mining equipment, in particular to a water collecting and draining device for directional drilling of water drainage in open coal mines. BACKGROUND

[0002] Groundwater is one of the key factors that affect the stability of open coal mine slopes. At present, the main methods for water control in open mine slopes include vertical drainage holes, horizontal drainage holes, large-diameter drainage holes under the pit, and well group drainage. In addition, there are drainage methods such as pit bottom drainage lanes, pit foundation dewatering, and radial well drainage. When draining water in the pit, the groundwater discharged by the drainage holes usually contains sediment. Long-term drainage can cause sediment and silt to accumulate at the bends or depressions of the drainage pipe, affecting the drainage effect of the slope aquifer.

[0003] In view of this, we provide a water collecting and draining device for directional drilling of water drainage in open coal mines to solve the above problems. CONTENT OF THE INVENTION

[0004] The purpose of the present application is to solve the problem of sediment and silt blocking the drainage pipe affecting the water collecting and draining effect when draining water in open coal mines. To solve the above technical problems, a water collecting and draining device is provided that can maintain the drainage effect when directional drilling of water drainage is performed in open coal mines.

[0005] To achieve the above purpose, the embodiments of the present application adopt the following technical solutions: a water collecting and draining device for directional drilling of water drainage in open coal mines, comprising: a body; an end face one, which is arranged at one end of the body and is provided with a hole; an end face two, which is arranged at one end of the body and is symmetrically arranged with the end face one; a first filter screen, which connects the end face two and the end face one; a second filter screen, which connects the end face one and the end face two and is designed as a concentric circle with the first filter screen; and a water collecting cage, which is arranged at the center of the body and is designed as a concentric circle with the second filter screen. The body is placed under the slope. The groundwater passes through the first filter screen and the second filter screen to filter out impurities in the groundwater. The filtered groundwater enters the water collecting cage, and the filtered groundwater is discharged by a drainage pump, maintaining continuous water collecting and draining.

[0006] Further, according to the embodiments of the present application, an inspection port is provided on the body, the inspection port is circular, and the inspection port is detachable.

[0007] Further, according to the embodiments of the present application, a supporting part is provided on the body, a plurality of supporting parts are arranged, and the supporting parts are made of high-strength composite materials.

[0008] Further, according to the embodiments of the present application, the first filter screen is made of stainless steel.

[0009] Further, according to the embodiment of the present application, the second filter screen is made of high-strength nylon material.

[0010] Further, according to the embodiment of the present application, the water collecting cage is made of high-strength metal.

[0011] Further, according to the embodiment of the present application, the first filter screen has a screen caliber of 5 mm.

[0012] Further, according to the embodiment of the present application, the second filter screen has a screen caliber of 2 mm.

[0013] Further, according to the embodiment of the present application, the water collecting cage has a screen caliber of 0.5 mm.

[0014] Further, according to the embodiment of the present application, the inspection hole is provided with a sealing ring.

[0015] Compared with the prior art, the first filter screen is made of stainless steel material to preliminarily intercept coal cinder, large-particle rock debris and the like, and the second filter screen is made of high-strength nylon material to further filter small impurities, so that the water entering the water collecting and draining pipeline is relatively clean, the risk of blockage is reduced, and the problem that the water collecting and draining work is interrupted due to impurities such as coal cinder and rock debris during the water collecting and draining of the open-pit coal mine, thereby affecting the continuity of the water collecting and draining, is solved, and the good effect that the water collecting and draining can be continuously performed is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The present application will be further described below in combination with the drawings and embodiments.

[0017] Fig. 1 is a three-dimensional structure schematic diagram of a water collecting and draining device for directional drilling of water collecting and draining of an open-pit coal mine according to an embodiment of the present application.

[0018] Fig. 2 is a placement structure schematic diagram of a water collecting and draining device for directional drilling of water collecting and draining of an open-pit coal mine according to an embodiment of the present application.

[0019] In the drawings: the body 1, the first filter screen 11, the second filter screen 12, the water collecting cage 13, the end face one 14, the end face two 15, the hole 141, the supporting part 2, the inspection hole 3, and the sealing ring 31. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme of the utility model clear, complete description, and the advantage is more clear and obvious, the following combining with the drawing carries out further detailed explanation to the utility model embodiment. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all embodiments, only to explain the embodiments of the utility model, and not for limiting the embodiments of the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor are within the scope of the utility model protection.

[0021] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "a", "first", "second", "third", "fourth", "fifth", "sixth" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0023] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by referring to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that these embodiments can not be limited to these specific details in practice for ordinary skilled in the art. In some examples, well-known methods and structures are not described in detail to avoid unnecessary difficulty in understanding these embodiments. In addition, all embodiments can be used in combination with each other.

[0024] Embodiment 1:

[0025] As Figs. 1-2As shown, the embodiment provides a drainage device for open-pit coal mine drainage directional drilling, comprising: a body 1; an end face one 14, the end face one 14 is arranged at one end of the body 1, and the end face one 14 is provided with a hole 141; an end face two 15, the end face two 15 is arranged at one end of the body 1, and the end face two 15 is symmetrically arranged with the end face one 14; a first filter screen 11, the first filter screen 11 is connected with the end face two 15 and the end face one 14; a second filter screen 12, the second filter screen 12 is connected with the end face one 14 and the end face two 15, and the second filter screen 12 is designed as a concentric circle with the first filter screen 11; the body 1 is placed under the slope, and the groundwater passes through the first filter screen 11 and the second filter screen 12 to filter impurities in the groundwater, the filtered groundwater enters the water collecting cage 13, and the filtered groundwater is discharged by the drainage pump, so that the drainage is continuously carried out.

[0026] It should be noted that the device can be placed horizontally, and compared with the gravity factor that may be overcome during the installation process, the horizontal placement has smaller influence. In addition, the drainage device has the characteristics of horizontal placement in design, which indicates that the overall structure has a reasonable layout in terms of mechanical stability.

[0027] The body 1 is provided with an inspection port 3, the inspection port 3 is circular, and the inspection port 3 is detachable. With the continuous water pumping process, the impurities intercepted on the first filter screen 11 will be more and more, and if there is no inspection port 3, the entire filter device may need to be disassembled for cleaning the impurities, which is cumbersome and time-consuming. With the detachable circular inspection port 3, only the opening of the inspection port 3 is needed, and then a suitable tool can be inserted into the inspection port 3 to clean the surface of the filter screen, remove the attached impurities, restore the filtering performance of the filter screen, and continuously carry out the drainage work.

[0028] The body 1 is provided with a support part 2, the support part 2 is arranged in a plurality of support parts 2, and the support part 2 is a high-strength composite material. In the application scene of open-pit coal mine drainage, the body 1 is placed under the slope, and needs to bear the large concentrated pressure generated from the part in contact with the slope. The existence of multiple support parts can uniformly disperse these forces, avoid deformation or damage of the body 1 due to excessive local stress, and continuously carry out the drainage work.

[0029] The first filter screen 11 is made of stainless steel material, and the second filter screen 12 is made of high-strength nylon material. During the operation of the water collecting and draining device, the first filter screen 11 serves as the first barrier to intercept impurities and needs to withstand the impact force of the water flow and the friction force of the impurities in the water. The stainless steel material has high strength and can maintain structural integrity during long-term use, and is not easy to be damaged by water flow impact or impurity scratching. It can stably play a filtering role, prolong its service life, reduce the trouble of frequent replacement, and further improve the water purity. After the preliminary interception by the first filter screen 11, there may still be some small impurities in the water flow, such as finer sand particles and part of organic debris. The high-strength nylon material can be woven into a filter screen with fine mesh, which can effectively filter these small impurities and further improve the purity of the water, prevent fine impurities from entering the water collecting and draining pipe or water pumping pipe, avoid the subsequent pipe from being blocked due to impurity accumulation, and ensure the long-term stable efficiency of the entire system.

[0030] The water collecting cage 13 is made of high-strength metal. The water collecting cage 13 made of high-strength metal has high mechanical strength and can withstand these large forces to ensure that it will not be easily crushed or deformed, stably collecting the water flow from the surrounding environment and providing protection for the subsequent water collecting and draining work.

[0031] The first filter screen 11 has a filter screen aperture of 5 mm, the second filter screen 12 has a filter screen aperture of 2 mm, and the water collecting cage 13 has a mesh aperture of 0.5 mm. In the entire water collecting and draining or water pumping system, the underground water usually contains various impurities such as coal cinder, large particle rock debris and other relatively large foreign matters. The first filter screen 11 as the first line of defense in the filtering process, the 5 mm filter screen aperture design can effectively intercept these large-sized impurities. After the interception by the first filter screen 11, although most of the large particle impurities have been removed, some small particles such as finer sand and part of broken small stones may still remain in the water. The 2 mm filter screen aperture of the second filter screen 12 can intercept and filter these smaller-sized impurities, further purify the water quality, ensure that the water entering the subsequent water collecting and draining pipe or water pumping equipment is clearer and cleaner, reduce the possibility of slow blocking of the subsequent pipe due to accumulation of fine impurities, and ensure the long-term stable operation of the entire system. The water collecting cage 13 as a component for directly collecting the surrounding water flow, in addition to visible large particle impurities, there are also a large number of extremely small impurities such as very fine sand and extremely small coal dust particles. The 0.5 mm mesh aperture can maximize the blocking of these fine impurities from entering the water collecting cage 13, ensuring that the water entering the water collecting cage 13 is as pure as possible from the beginning, reducing the total amount of impurities in the subsequent entire filtering and water collecting and draining process, and providing stable water collecting and draining for the subsequent process.

[0032] Further, a water inlet is arranged on the surface of the body 1, the number of the water inlets can be set according to the number of the drill holes to be connected, and the water inlets are arranged by welding, wherein the water inlets can be connected with the flange joints of the drill hole orifices through water inlets pipes, and the water discharged from the drill holes enters the water collecting and draining device through the flange joints and the water inlet pipes.

[0033] A sealing ring 31 is arranged on the inspection hole 3. Whether in the water pumping device or the water collecting and draining device, the normal operation of the whole system often depends on a certain water pressure environment. As an openable and closable part on the device, if the inspection hole 3 is not well sealed, water may leak out of the inspection hole 3, resulting in a decrease in the internal pressure of the system, affecting the normal flow of water and the water pumping and water collecting and draining efficiency of the whole device.

[0034] Although the above describes the specific embodiments of the present application in a descriptive manner, so that those skilled in the art can understand the present application, the present application is not limited to the scope of the specific embodiments, and for those skilled in the art, as long as various changes are within the spirit and scope of the present application defined and determined by the appended claims, all application creations utilizing the concept of the present application are protected.

Claims

1. A water collecting and draining device for directional drilling of water drainage in an open pit coal mine, characterized in that, Include: The body; End face one, the end face one is arranged in the body one end, the end face one is provided with hole; End face two, the end face two is arranged in the body one end, the end face two is symmetrically arranged with the end face one; First filter screen, the first filter screen is connected with the end face two and the end face one; Second filter screen, the second filter screen is connected with the end face one and the end face two, the second filter screen is concentric circle design with the first filter screen; Water collecting cage, the water collecting cage is arranged in the body center, the water collecting cage is concentric circle design with the second filter screen; The body is placed in the slope, groundwater is filtered in the first filter screen and the second filter screen in the groundwater, the groundwater that filtration is completed enters the water collecting cage, and the groundwater that filtration is completed is discharged through the drainage pump, and the collection and drainage are continuously carried out.

2. The water collecting and draining device for the directional drilling of water drainage in an open-pit coal mine according to claim 1, characterized in that, The body is provided with an inspection port, the inspection port is circular, and the inspection port is detachable.

3. The water collecting and draining device for directional drilling of water drainage in an open-pit coal mine according to claim 1, characterized in that, The body is provided with a support part, the support part is arranged in several, and the support part is a high-strength composite material.

4. The water collecting and draining device for the directional drilling of water drainage in an open-pit coal mine according to claim 1, characterized in that, The first filter screen is made of stainless steel material.

5. The water collecting and draining device for the directional drilling of water drainage in an open-pit coal mine according to claim 1, characterized in that, The second filter screen is made of high-strength nylon material.

6. The water collecting and draining device for the directional drilling of water drainage in an open-pit coal mine according to claim 1, characterized in that, The water collecting cage is made of high-strength metal.

7. The water collecting and draining device for directional drilling of water drainage in an open-pit coal mine according to claim 1, characterized in that, The first filter screen filter screen caliber is 5mm.

8. The water collecting and draining device for the directional drilling of water drainage in an open-pit coal mine according to claim 1, characterized in that, The second filter screen filter screen caliber is 2mm.

9. The water collecting and draining device for the directional drilling of water drainage in an open-pit coal mine according to claim 1, characterized in that, The water collecting cage mesh caliber is 0.5mm.

10. The water collecting and draining device for the directional drilling of water drainage in an open-pit coal mine according to claim 2, characterized in that, The inspection port is provided with a sealing ring.

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