Roof contact device for filling roof contact

Abstract

The utility model relates to a roof contact device for filling roof contact, and relates to the technical field of mining filling. The roof contact device for filling roof contact comprises a roof contact box body, a suspension bracket and a pressure sensor. According to the scheme provided by the invention, the roof-contacted box body is arranged, in the grouting construction process, the roof-contacted box body can float on the grouting liquid surface along with continuous height increase of the grouting liquid surface, and after grouting is stopped to the specified height, the top of the roof-contacted box body makes contact with the stope top plate, so that the stope top plate is supported, the roof-contacted effect is guaranteed, and the construction efficiency is improved. And the roof contact rate is effectively improved. The suspension bracket is suspended by using the spring hooks, and the spring hooks have certain elasticity, so that the suspension bracket can adapt to movement and deformation within a certain range during slurry filling, and position adjustment is performed in a self-adaptive manner, so that the roof-contacted box body is always kept at a proper position, and the roof-contacted effect is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of mining filling, and in particular to a top connection device for filling and top connection. Background Art

[0002] During the mining process, underground mines will have empty spaces left after mining, and there is a risk of rock collapse causing casualties and property losses. At the same time, solid waste such as waste rock and tailings produced during the mining process will pollute the environment.

[0003] To solve these problems, paste filling technology is currently used to mix solid waste with water to form a fluid, stable, and plastic toothpaste-like slurry, which is then pumped and pressurized to the goaf, which not only bears pressure but also consumes solid waste. In engineering practice, the effect of paste filling depends on the top contact rate of the paste filled into the goaf. The higher the top contact rate, the more obvious the supporting effect of the paste.

[0004] However, in the actual construction process, due to factors such as the filling pipeline conditions and the deposition and consolidation of the paste, it is difficult for the paste to achieve the effect of complete roof connection. At the same time, for mines with larger areas or higher mine heights, the mines must be filled multiple times in stages. The process of multiple slurry fillings into the mine and then consolidation will interfere with the existing roof connection device and affect the roof connection effect of the roof connection device. Utility Model Content

[0005] In order to solve or partially solve the problems existing in the related art, the present application provides a topping device for filling and topping, which can ensure the topping effect of the topping device and effectively improve the topping rate.

[0006] The present application provides a capping device for filling and capping, comprising:

[0007] A top-connecting box body, at the bottom of which at least two fixing bolts are installed;

[0008] The suspension frame is provided with hanging ears on the side walls around the suspension frame, and the hanging ears are connected to the top of the mining field through a hanging rope to suspend the suspension frame; the top connection box is fixedly installed in the suspension frame;

[0009] The pressure sensor is arranged and fixedly mounted on the bottom of the top box body, and the pressure sensor is fixed in a limited position by a fixing rope in cooperation with the fixing bolt.

[0010] Optionally, in some embodiments of the first aspect of the present application:

[0011] The entire roof box is made of wood, and a waterproof material is provided and wrapped on the outside of the roof box.

[0012] Optionally, in some embodiments of the first aspect of the present application:

[0013] A cross support plate is arranged inside the top box.

[0014] Optionally, in some embodiments of the first aspect of the present application:

[0015] The suspension rope is a spring hook, and a fixed hook is arranged on the top of the mining field. The suspension frame is suspended by connecting the hanging ear and the fixed hook through the spring hook.

[0016] Optionally, in some embodiments of the first aspect of the present application:

[0017] The fixing hook is a straight rod, a self-tapping thread is arranged on the top of the fixing hook, and a hook through hole is arranged on the bottom of the fixing hook.

[0018] Optionally, in some embodiments of the first aspect of the present application:

[0019] The pressure sensor is a circular plate type pressure sensor;

[0020] An electrical connection is established between the pressure sensor and a data acquisition device outside the mining field.

[0021] The technical solution provided by this application may have the following beneficial effects:

[0022] The present application sets up a top connection box. During the grouting process, as the grouting liquid level continues to rise, the top connection box will float on the grouting liquid level. After the grouting stops at a specified height, the top of the top connection box contacts the roof of the mining area, thereby supporting the roof of the mining area, ensuring the roof connection effect, and effectively improving the roof connection rate. The present application only needs to perform grouting once, which can avoid multiple groutings affecting the roof connection effect.

[0023] The present application suspends the suspension frame by using a spring hook. The spring hook has a certain elasticity. When filling the slurry, it can adapt to the movement and deformation within a certain range and adjust the position adaptively, so that the top connection box always remains in the appropriate position to ensure the top connection effect.

[0024] This application installs a pressure sensor. After the grouting is completed, the pressure sensor can monitor the pressure situation at the bottom of the top box in real time. When the roof pressure increases sharply, corresponding enhanced support measures can be taken to ensure the construction safety of the underground mine.

[0025] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0027] Figure 1 It is a structural schematic diagram of a top connection device used for filling and top connection in an embodiment of the present application;

[0028] Figure 2 This is a schematic diagram of the internal structure of a top-connected box in an embodiment of the present application;

[0029] Figure 3 is a schematic diagram of an installation structure of a pressure sensor in an embodiment of the present application;

[0030] Figure 4 This is a structural diagram of a fixed hook in an embodiment of the present application;

[0031] Figure 5 It is a schematic diagram of a connection structure of a pressure sensor in an embodiment of the present application.

[0032] Figure numerals: 1-top box body, 101-fixing bolt, 102-waterproof material, 103-cross support plate, 2-suspension frame, 201-hanging ear, 202-suspension rope, 3-pressure sensor, 4-fixing rope, 5-data acquisition instrument, 6-fixing hook, 601-self-tapping thread, 602-hook through hole. DETAILED DESCRIPTION

[0033] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0034] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0035] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application 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 should not be understood as a limitation on the present application.

[0036] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] In the process of mining, underground mines will have empty spaces left after mining, which may cause casualties and property losses due to rock collapse. At the same time, solid wastes such as waste rock and tailings produced during the mining process will pollute the environment. In order to solve the above problems, paste filling technology is currently used to mix solid waste with water to form a fluid, stable and plastic toothpaste-like slurry, which is then pumped and pressurized to the goaf, which not only bears pressure but also consumes solid waste. In engineering practice, the effect of paste filling depends on the top contact rate of the paste filled into the empty space. The higher the top contact rate, the more obvious the supporting effect of the paste.

[0038] However, in the actual construction process, due to factors such as the filling pipeline conditions and the deposition and consolidation of the paste, it is difficult for the paste to achieve the effect of complete roof connection. At the same time, for mines with larger areas or higher mine heights, the mines must be filled multiple times in stages. The process of multiple slurry fillings into the mine and then consolidation will interfere with the existing roof connection device and affect the roof connection effect of the roof connection device.

[0039] In view of the above problems, an embodiment of the present application provides a top-joining device for filling and top-joining, which can ensure the top-joining effect of the top-joining device and effectively improve the top-joining rate.

[0040] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0041] Figure 1 It is a structural schematic diagram of a top connection device used for filling and top connection in an embodiment of the present application;

[0042] Figure 2This is a schematic diagram of the internal structure of a top-connected box in an embodiment of the present application;

[0043] Figure 3 is a schematic diagram of an installation structure of a pressure sensor in an embodiment of the present application;

[0044] Figure 4 This is a structural diagram of a fixed hook in an embodiment of the present application;

[0045] Figure 5 It is a schematic diagram of a connection structure of a pressure sensor in an embodiment of the present application.

[0046] See also Figure 1-5 , a top connection device for filling and connecting the top, a top connection box body 1, and four fixing bolts 101 are arranged and installed at the bottom of the top connection box body 1;

[0047] Specifically, the entire roof connection box 1 is made of wood, and a waterproof material 102 is provided and wrapped on the outside of the roof connection box 1. By using wood material, the overall weight of the roof connection box 1 is light and can have a high buoyancy; the waterproof material 102 provided and wrapped on the outside of the roof connection box 1 is specifically: SBS waterproof membrane, which is self-adhesive and is installed on the surface of the roof connection box 1 by bonding, and after wrapping, the poorly bonded parts are nailed with iron nails, so that the entire roof connection box 1 is sealed and waterproof. During the grouting process, as the grouting liquid level continues to rise, the roof connection box 1 will float on the grouting liquid level. After the grouting stops at the specified height, the top of the roof connection box 1 contacts each other with the mine roof, thereby supporting the mine roof, ensuring the roof connection effect, and effectively improving the roof connection rate.

[0048] Specifically, a cross support plate 103 is provided inside the top connection box 1. The cross support plate 103 is a cross-shaped plate composed of two wooden boards. By providing the cross support plate 103 inside the top connection box 1, the overall strength of the top connection box 1 can be improved, and the supporting capacity can be improved.

[0049] The suspension frame 2 is provided with hanging ears 201 on the side walls around the suspension frame 2, and the hanging ears 201 are connected to the top of the mining field through a hanging rope 202 to suspend the suspension frame 2; the top connection box 1 is fixedly installed in the suspension frame 2. The suspension frame 2 is an aluminum frame with a light weight. The size of the suspension frame 2 is set according to the size of the top connection box 1, so that the top connection box 1 can be tightly clamped in the suspension frame 2.

[0050] Specifically, the suspension rope 202 is a spring hook, and a fixed hook is provided on the top of the mining field. The suspension frame 2 is suspended by connecting the hanging ear 201 and the fixed hook through the spring hook.

[0051] Specifically, the fixing hook 6 is a straight rod, a self-tapping thread 601 is arranged at the top of the fixing hook 6 , and a hook through hole 602 is arranged at the bottom of the fixing hook 6 .

[0052] The fixing hook 6 is fixedly installed by drilling and grouting. The self-tapping thread 601 on the fixing hook 6 can be firmly fixed on the corresponding structure. The hook through hole 602 can be conveniently connected to the hanging rope 202 to realize the hanging top connection device.

[0053] The suspension frame 2 is suspended by using a spring hook, which has a certain elasticity. When filling with slurry, it can adapt to movement and deformation within a certain range and adjust its position adaptively, so that the top connection box body 1 is always kept in the appropriate position to ensure the top connection effect.

[0054] The pressure sensor 3 is arranged and fixedly mounted on the bottom of the top-connected box body 1, and the pressure sensor 3 is fixed by the fixing rope 4 and the fixing bolt 101;

[0055] Specifically, the pressure sensor 3 is a circular plate type pressure sensor;

[0056] The pressure sensor 3 is electrically connected to a data acquisition device 5 outside the mining area.

[0057] By installing the pressure sensor 3, after the grouting is completed, the pressure sensor 3 can monitor the pressure condition at the bottom of the top box 1 in real time. When the roof pressure increases sharply, corresponding enhanced support measures can be taken to ensure the construction safety of the underground mine.

[0058] The use process of a top-joining device for filling and joining in the present application is as follows:

[0059] After installing the top connection device for filling and connecting the top in the embodiment of the present application, a fixed hook 6 is set at a suitable position on the top of the mining area, and the suspension frame 2 is suspended by connecting the hanging ear 201 and the fixed hook through a spring hook. The wires of the pressure sensor 3 are led out along the top plate and side wall of the mining area and connected to the data acquisition instrument 5 outside the mining area.

[0060] After installation, grouting filling can be started. During the grouting process, as the grouting liquid level continues to rise, the top connection box 1 will float on the grouting liquid surface. As the grouting liquid continues to rise, the position of the top connection box 1 will also continue to rise. After grouting to the specified height and the grouting liquid solidifies, the top of the top connection box 1 contacts the top plate of the mining area, and a part of the bottom of the top connection box 1 is located in the grouting body. The top plate of the mining area is supported by the top connection box 1, which ensures the top connection effect and effectively improves the top connection rate. At the same time, when grouting, the grouting height is set according to the height of the filling retaining wall. It is only necessary to observe the height difference between the grouting liquid and the filling retaining wall, and perform grouting once, which can avoid multiple groutings affecting the top connection effect.

[0061] The technical solution provided by the embodiment of the present application includes the following beneficial effects:

[0062] The present application sets a top connection box 1. During the grouting process, as the grouting liquid level continues to rise, the top connection box 1 will float on the grouting liquid level. After the grouting stops at a specified height, the top of the top connection box 1 contacts the top plate of the mining area, thereby supporting the top plate of the mining area, ensuring the top connection effect, and effectively improving the top connection rate. The present application only needs to perform grouting once, which can avoid multiple groutings affecting the top connection effect.

[0063] The present application suspends the suspension frame 2 by using a spring hook. The spring hook has a certain elasticity. When the slurry is filled, it can adapt to the movement and deformation within a certain range and adjust the position adaptively, so that the top connection box body 1 is always kept in the appropriate position to ensure the top connection effect.

[0064] The present application installs a pressure sensor 3. After the grouting is completed, the pressure sensor 3 can monitor the pressure condition at the bottom of the top box 1 in real time. When the roof pressure increases sharply, corresponding enhanced support measures can be taken to ensure the construction safety of the underground mine.

[0065] Finally, it should be noted that, in this article, relationships such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms include, include or any other variations are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0066] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A top-joining device for filling and top-joining, characterized in that: include: A top-connecting box body (1), at least two fixing bolts (101) are installed at the bottom of the top-connecting box body (1); A suspension frame (2), wherein hanging ears (201) are arranged on the side walls around the suspension frame (2), and the hanging ears (201) are connected to the top of the mining field through a hanging rope (202) to suspend the suspension frame (2); the top connection box (1) is arranged and fixedly installed in the suspension frame (2); A pressure sensor (3) is arranged and fixedly mounted on the bottom of the top-connected box body (1), and the pressure sensor (3) is fixed in a limited position by means of a fixing rope (4) in cooperation with the fixing bolt (101).

2. The device for filling and capping according to claim 1, characterized in that: The entire roof-connecting box body (1) is made of wood, and a waterproof material (102) is provided and wrapped on the outside of the roof-connecting box body (1).

3. The device for filling and connecting the top according to claim 2, characterized in that: A cross support plate (103) is arranged inside the top connection box (1).

4. The top-joining device for filling and joining according to claim 1, characterized in that: The suspension rope (202) is a spring hook, and a fixed hook (6) is arranged on the top of the stope, and the suspension frame (2) is suspended by connecting the hanging ear (201) and the fixed hook through the spring hook.

5. The device for filling and connecting the top according to claim 4, characterized in that: The fixing hook (6) is a straight rod, a self-tapping thread (601) is arranged at the top of the fixing hook, and a hook through hole (602) is arranged at the bottom of the fixing hook.

6. The device for filling and capping according to claim 1, characterized in that: The pressure sensor (3) is a circular plate type pressure sensor; An electrical connection is established between the pressure sensor (3) and a data acquisition device (5) outside the mining site.

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