A monitoring device for safe top coal mining based on microseismic and electrical method coupling

Abstract

The present invention discloses a device for monitoring safe mining of top coal caving based on coupling of microseismic and electrical methods, comprising a cylinder structure, an adjusting and fixing structure is fixedly installed on the outside of the cylinder structure, the cylinder structure comprises a fixing cylinder with a heat sink inlaid and fixed on the outside, a threaded ring is fixedly installed on the fixing cylinder, and a blocking block is threadedly installed in the threaded ring, a shifting column is fixed on the blocking block, a through hole is penetrated through the blocking block, and a lip-shaped sealing ring is fixed in the through hole, a connecting cover covering the through hole is fixed on the blocking block, and another lip-shaped sealing ring is fixed inside the connecting cover, an installation cylinder is connected to the inside of the fixing cylinder, and an installation groove for facilitating the matching installation of the heat sink is penetrated through the surface of the installation cylinder, and a threaded column is fixed inside the installation cylinder. This device for monitoring safe mining of top coal caving based on coupling of microseismic and electrical methods plays the role of inlaying and fixing through the setting of the fixing cylinder.

Description

Technical Field

[0001] The invention relates to the technical field of monitoring devices for safe top coal caving mining, and in particular to a monitoring device for safe top coal caving mining based on microseismic and electrical method coupling. Background Art

[0002] my country is rich in coal resources, but the geological conditions are complex, which makes geological disasters occur frequently in coal mining. With the further increase of coal mining depth and mining intensity, the threat of pressurized water to the mining face is becoming more and more serious, especially for the mining face with fault structure, the problem of water inrush prediction and prevention is more prominent. After searching, it is found that the existing public technology has a publication number of CN220872688U, a top coal caving safety mining monitoring system based on microseismic and electrical coupling, including a microseismic detection module, a resistance detection module and a data processing module. The microseismic detection module includes a plurality of microseismic sensors for collecting microseismic signals. A plurality of microseismic sensors are installed on the underground fault surrounding rock through mounting components. The resistance detection module includes a plurality of electrodes for collecting resistivity signals of the underground fault surrounding rock. The data processing module includes a PC for processing the microseismic signals and the resistivity signals. The monitoring system in the utility model can dynamically monitor the microseismic events near the underground fault surrounding rock and analyze the location of the water inrush point. It utilizes the coupling effect of microseismic and electrical methods to better obtain the distribution of rock fractures and water hazards in the underground fault surrounding rock, thereby providing technical parameters for later management, ensuring the safe recovery of top coal, and greatly improving the construction efficiency underground.

[0003] To sum up: the top coal caving safety monitoring system based on microseismic and electrical coupling set up in the above scheme allows the anchor to pass through the periphery of the anchor claw through the grouting pipe, so that the effect of the anchor solidifying and fixing the fixed tube is better. However, when the fixed tube is fixed by the anchor claw and the anchor, not only is the fixation troublesome, but the anchor solidifies and requires a certain solidification time period, which makes it impossible to quickly fix the fixed tube. In addition, when the microseismic sensor is placed inside the installation tube and the fixing tube in the above scheme, the microseismic sensor will generate working heat during operation. At this time, the working heat cannot be quickly evaporated from the installation tube and the fixing tube, which can easily affect the normal operation of the microseismic sensor. At the same time, in the above scheme, a through hole is opened on the block. At this time, the water inside the well can easily enter the installation tube through the through hole, causing the microseismic sensor to be soaked and unable to operate normally. Summary of the invention

[0004] The purpose of the present invention is to address the deficiencies of the prior art and provide a top coal caving safe mining monitoring device based on microseismic and electrical coupling to solve the problem that the top coal caving safe mining monitoring system based on microseismic and electrical coupling set in the above-mentioned scheme proposed in the above-mentioned background technology allows the anchor to pass through the periphery of the anchor claw through the grouting pipe, so that the anchor solidifies and fixes the fixed tube with better effect. However, when the fixed tube is fixed by the anchor claw and the anchor, not only is the fixation troublesome, but the anchor solidifies and requires a certain solidification time period, resulting in the inability to quickly fix the fixed tube. In addition, when the microseismic sensor is placed inside the mounting tube and the fixing tube in the above-mentioned scheme, the microseismic sensor generates working heat during operation. At this time, the working heat cannot be quickly evaporated from the mounting tube and the fixing tube, which is easy to cause thermal influence on the normal operation of the microseismic sensor. At the same time, in the above-mentioned scheme, a through hole is opened on the block. At this time, water inside the well can easily enter the mounting tube through the through hole, causing the microseismic sensor to be soaked and unable to operate normally.

[0005] To achieve the above object, the present invention provides the following technical solutions: A top coal caving safety mining monitoring device based on microseismic and electrical method coupling, comprising a cylinder structure, an adjusting and fixing structure is fixedly installed on the outside of the cylinder structure;

[0006] The cylinder structure comprises a fixed cylinder with a heat sink embedded and fixed on the outer side, and a threaded ring is fixedly installed on the fixed cylinder, and a blocking block is threadedly installed in the threaded ring;

[0007] A shifting post is fixed on the blocking block, and a through hole is formed through the blocking block, and a lip sealing ring is fixed in the through hole;

[0008] A connection cover covering the through hole is fixed on the blocking block, and another lip-shaped sealing ring is fixed inside the connection cover.

[0009] By adopting the above technical solution, the fixing tube is provided to achieve inlay installation and fixing.

[0010] Preferably, the fixing tube is internally connected to a mounting tube, and a mounting groove is penetrated through the surface of the mounting tube for facilitating the installation of a heat sink, and a threaded column is fixed inside the mounting tube, and the mounting tube is threadedly connected to the microseismic sensor through the threaded column, and the microseismic sensor is electrically connected to a signal line that penetrates the lip sealing ring, the through hole and the connecting cover.

[0011] By adopting the above technical solution, the lip-shaped sealing ring is provided to achieve wrapping sealing.

[0012] Preferably, the adjusting and fixing structure includes a mounting ring installed below the surface of the fixing cylinder, and a synchronous cylinder is fixed above the surface of the mounting ring. At the same time, an adjusting ring is fixed to the output end of the synchronous cylinder, and a sliding groove is opened inside the adjusting ring for sliding adjustment relative to the heat sink.

[0013] By adopting the above technical solution, synchronous drive adjustment is achieved through the provision of a synchronous cylinder.

[0014] Preferably, a through-hole protrusion is fixed on the adjustment ring, and a double-hole connecting plate is rotatably installed on the through-hole protrusion through a connecting pin, and the double-hole connecting plate is rotatably connected to another through-hole protrusion through a connecting pin, a connecting block is fixed above the other through-hole protrusion, and sliding blocks are fixed on both sides of the connecting block, and an adjustment support rod is fixed at one end of the connecting block.

[0015] By adopting the above technical solution, a two-way rotation connection is achieved by providing a double-hole connecting plate.

[0016] Preferably, the slider is slidably connected to the connecting groove through a sliding groove, and the connecting groove is opened below the bottom of the fixing ring. At the same time, a rod outlet hole is opened through the connecting groove to facilitate the adjustment of the support rod storage extension. The fixing ring is fixedly installed above the surface of the fixing tube.

[0017] By adopting the above technical solution, the setting of the fixing ring can play the role of opening and matching installation and fixing.

[0018] Preferably, a bellows is fixedly installed between the adjusting ring and the mounting ring.

[0019] By adopting the above technical solution, the lifting drive adjustment is achieved through the provided adjustment ring.

[0020] Preferably, there are six heat sinks, and the heat sinks are arranged in a circular array with respect to the surface of the fixed cylinder.

[0021] By adopting the above technical solution, the heat sink is provided to assist in heat dissipation through heat transfer.

[0022] Preferably, the overall shape of the connection cover is a "conical" structure.

[0023] By adopting the above technical solution, the provided connection cover can achieve wrapping protection.

[0024] Preferably, there are four rod outlet holes, and the rod outlet holes are arranged symmetrically about the axis.

[0025] By adopting the above technical solution, the rod outlet support of the support rod can be easily adjusted through the provided rod outlet hole.

[0026] Compared with the prior art, the invention has the following beneficial effects: the top coal caving safety mining monitoring device based on microseismic and electrical method coupling can

[0027] (1) This case solves the problem of the monitoring system for safe top coal mining based on microseismic and electrical coupling in the above scheme by setting up: adjusting the fixing structure, so as to make the anchor pass through the outer periphery of the anchor claw through the grouting pipe, so that the anchor solidifies and fixes the fixing cylinder with better effect. However, when the fixing cylinder is fixed by the anchor claw and the anchor, not only is the fixing troublesome, but also the anchor solidifies for a certain solidification period, which makes it impossible to fix the fixing cylinder quickly. When the fixing cylinder needs to be fixed in the preset borehole, the operator controls the synchronous cylinder to work, and the synchronous cylinder drives the adjustment ring to move during operation. When the adjustment ring moves under force, the through-hole protrusion and the double-hole connecting plate drive the other through-hole protrusion to slide under force adjustment. When the other through-hole protrusion slides under force adjustment, it drives the adjustment support rod to extend out of the rod hole so as to contact with the inside of the preset borehole to limit and fix the fixing cylinder.

[0028] (2) The heat sink and the mounting groove are arranged in the cylinder structure, so as to solve the problem that when the microseismic sensor is placed inside the mounting cylinder and the fixing cylinder, the microseismic sensor generates working heat during operation. At this time, the working heat cannot be quickly volatilized out of the mounting cylinder and the fixing cylinder, which easily affects the normal operation of the microseismic sensor. When the heat generated by the microseismic sensor during operation is transferred to the inside of the fixing cylinder through the mounting groove, the heat transferred to the inside of the fixing cylinder contacts the heat sink and transfers the heat out of the fixing cylinder, thereby playing a heat transfer auxiliary heat dissipation effect during the operation of the microseismic sensor;

[0029] (3) The lip seal ring and the connection cover are provided in the cylinder structure, thereby solving the problem that in the above scheme, a through hole is opened on the block. At this time, water inside the well can easily enter the inside of the installation cylinder through the through hole, causing the microseismic sensor to be soaked and unable to operate normally. When the signal line passes through the lip seal ring and the connection cover and extends to the outside of the connection cover, the lip seal ring blocks the through hole. The lip seal ring and the connection cover block the through hole, thereby preventing rainwater from entering the installation cylinder through the through hole and along the signal line to damage the microseismic sensor.

[0030] (4) By adjusting the bellows provided in the fixed structure, the synchronous adjustment cylinder is wrapped and protected to avoid the situation where the synchronous adjustment cylinder is exposed to the outside as a whole and the water in the preset borehole contacts with the synchronous cylinder, causing corrosion damage to the synchronous cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the front cross-sectional structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the structure of the fixing cylinder, the threaded ring, the blocking block, the shifting column, the through hole, the lip seal ring, the connecting cover, the threaded column, the microseismic sensor, the signal line and the installation cylinder of the present invention;

[0033] Figure 3 It is a schematic diagram of the local structure of the fixing tube and the heat sink of the present invention;

[0034] Figure 4 It is a schematic diagram of the local structure of the mounting groove and the mounting cylinder of the present invention;

[0035] Figure 5 It is a schematic diagram of the structure of the mounting ring, the adjusting ring, the through-hole convex block, the double-hole connecting plate, the fixing ring, the rod outlet hole and the corrugated cover of the present invention;

[0036] Figure 6 This is a schematic diagram of the mounting ring and the synchronous cylinder structure of the present invention;

[0037] Figure 7 It is a schematic diagram of the local structure of the slide groove, the connecting groove, the fixing ring and the rod outlet hole of the present invention;

[0038] Figure 8 It is a schematic diagram of the partial structure of the adjusting ring and the sliding groove of the present invention;

[0039] Fig. 9 It is a schematic diagram of the structure of the through hole protrusion, the connecting block, the sliding block and the adjusting support rod of the present invention.

[0040] In the figure: 1. Cylinder structure; 101. Fixed cylinder; 102. Heat sink; 103. Threaded ring; 104. Block; 105. Shifting column; 106. Through hole; 107. Lip seal; 108. Connecting cover; 109. Mounting groove; 1010. Threaded column; 1011. Micro-seismic sensor; 1012. Signal line; 1013. Mounting cylinder; 2. Adjusting and fixing structure; 201. Mounting ring; 202. Synchronous cylinder; 203. Adjusting ring; 204. Sliding groove; 205. Through-hole protrusion; 206. Double-hole connecting plate; 207. Connecting block; 208. Sliding block; 209. Adjusting support rod; 2010. Sliding groove; 2011. Connecting groove; 2012. Fixed ring; 2013. Rod hole; 2014. Corrugated cover. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] See also Figure 1-9 The present invention provides a technical solution: a monitoring device for safe top coal mining based on microseismic and electrical method coupling, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the barrel structure 1 includes a fixed barrel 101 with a heat sink 102 embedded and fixed on the outer side, the heat sink 102 is provided with 6 pieces, and the heat sink 102 is arranged in a ring array on the surface of the fixed barrel 101. When the above-mentioned components are provided with 6 pieces, it not only reflects the practicality of the above-mentioned components being embedded and installed, but also reflects the equidistant distribution fixity of the above-mentioned components being embedded and installed. When the above-mentioned components are provided with 6 pieces, the aesthetics and heat transfer diffusion of the above-mentioned components are reflected at the same time. A threaded ring 103 is fixedly installed on the fixed barrel 101, and a plug is threadedly installed in the threaded ring 103. Block 104, a lever 105 is fixed on the blocking block 104, and a through hole 106 is opened on the blocking block 104, and a lip sealing ring 107 is fixed in the through hole 106, a connecting cover 108 covering the through hole 106 is fixed on the blocking block 104, and another lip sealing ring 107 is fixed inside the connecting cover 108, wherein the fixing cylinder 101, the threaded ring 103, the blocking block 104, the lever 105 and the through hole 106 all adopt the component installation arrangement in the comparative document, and the component installation arrangement in the comparative document is effectively facilitated to the matching installation of the mounting cylinder 1013 and the embedded installation and fixation of the heat sink 102.

[0043] The above scheme further includes a mounting tube 1013 connected to the interior of the fixing tube 101, and a mounting groove 109 is provided on the surface of the mounting tube 1013 for facilitating the installation of the heat sink 102, and a threaded column 1010 is fixed inside the mounting tube 1013, and the mounting tube 1013 is threadedly installed and connected to the microseismic sensor 1011 through the threaded column 1010, and the microseismic sensor 1011 is electrically connected with a signal line 1012 that passes through the lip sealing ring 107, the through hole 106 and the connecting cover 108, and the connecting cover 108 has an overall shape of a "conical" structure. When the overall shape of the above-mentioned components is set in a "conical" structure, it not only reflects the wrapping and fixing properties of the above-mentioned components to the through hole 106, but also reflects the fixing and installing properties of the above-mentioned components to the other lip sealing ring 107, and when the overall shape of the above-mentioned components is set in a "conical" structure, the axial and longitudinal axis symmetry beauty and the diversion and transportation properties of rainwater contact of the above-mentioned components are simultaneously reflected.

[0044] like Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9As shown, an adjusting fixing structure 2 is fixedly installed on the outside of the cylinder structure 1, and the adjusting fixing structure 2 includes a mounting ring 201 installed below the surface of the fixed cylinder 101, and a synchronous cylinder 202 is fixed above the surface of the mounting ring 201, and an adjusting ring 203 is fixed to the output end of the synchronous cylinder 202, and a sliding groove 204 for sliding adjustment relative to the heat sink 102 is opened inside the adjusting ring 203, wherein 6 sliding grooves 204 are also opened, and the 6 sliding grooves 204 are used to avoid the interference of sliding motion between the adjusting ring 203 and the heat sink 102.

[0045] In the above scheme, a through-hole protrusion 205 is fixed on the adjusting ring 203, and a double-hole connecting plate 206 is rotatably installed on the through-hole protrusion 205 through a connecting pin, and the double-hole connecting plate 206 is rotatably connected to the other through-hole protrusion 205 through a connecting pin, and a connecting block 207 is fixed above the other through-hole protrusion 205, and sliders 208 are fixed on both sides of the connecting block 207, and an adjusting support rod 209 is fixed at one end of the connecting block 207, and the slider 208 is slidably connected to the connecting groove 2011 through a sliding groove 2010, and the connecting groove 2011 is provided below the bottom of the fixing ring 2012, and a rod outlet hole 2013 is provided through the connecting groove 2011 for accommodating and extending the adjusting support rod 209, and 4 rod outlet holes 2013 are provided, and the rod outlet holes 2013 are symmetrically provided along the axis, through the above structure. When there are four of them, it reflects the connectivity between the above structure and the connecting groove 2011, and also reflects the aesthetics of the above structure and the convenience of adjusting the sliding storage and extension of the support rod 209. When the above structure is provided with four, it also reflects the practicality and axial symmetry of the above structure. The fixing ring 2012 is fixedly installed above the surface of the fixing cylinder 101, and a bellows 2014 is fixedly installed between the adjusting ring 203 and the mounting ring 201, and the bellows 2014, wherein the above components constitute a driving sliding adjustment structure, and when the driving sliding adjustment structure constituted by the above components is utilized, the adjusting support rod 209 is effectively slidably extended and slidably stored, and when the adjusting support rod 209 is slidably stored and slidably extended, the fixing cylinder 101 is effectively fixed inside preset drilled holes of different diameters.

[0046] In the above scheme, when the fixed cylinder 101 needs to be fixed in the preset drill hole, the operator controls the synchronous cylinder 202 to work. When the synchronous cylinder 202 is in operation, it drives the adjustment ring 203 to move. When the adjustment ring 203 moves under force, it drives the other through-hole protrusion 205 to slide and adjust under force through the through-hole protrusion 205 and the double-hole connecting plate 206. When the other through-hole protrusion 205 is slid and adjusted under force, it drives the adjustment support rod 209 to extend out of the rod hole 2013 so as to contact the inside of the preset drill hole to limit and fix the fixed cylinder 101. When the microseismic sensor 1011 generates heat during operation, it is transferred to the inside of the fixed cylinder 101 through the mounting groove 109. When the heat transferred to the inside of the fixed cylinder 101 contacts the heat sink 102, the heat is transferred out of the inside of the fixed cylinder 101, thereby playing a heat transfer and auxiliary heat dissipation effect on the microseismic sensor 1011 during operation.

[0047] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the protection content of the present invention.

[0048] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A monitoring device for safe top coal mining based on microseismic and electrical method coupling, characterized by: It comprises a cylinder structure (1), wherein an adjustment and fixing structure (2) is fixedly installed on the outside of the cylinder structure (1); The cylinder structure (1) comprises a fixed cylinder (101) with a heat sink (102) embedded and fixed on the outer side, a threaded ring (103) is fixedly mounted on the fixed cylinder (101), and a blocking block (104) is threadedly mounted in the threaded ring (103); A shifting post (105) is fixed on the blocking block (104), and a through hole (106) is formed through the blocking block (104), and a lip seal ring (107) is fixed in the through hole (106); A connection cover (108) covering the through hole (106) is fixed on the blocking block (104), and another lip-shaped sealing ring (107) is fixed inside the connection cover (108).

2. The device for monitoring safe top coal mining based on microseismic and electrical method coupling according to claim 1 is characterized by: The fixing tube (101) is internally connected to a mounting tube (1013), and a mounting groove (109) is provided on the surface of the mounting tube (1013) for facilitating the matching mounting of the heat sink (102). A threaded column (1010) is fixed inside the mounting tube (1013), and the mounting tube (1013) is threadedly mounted and connected to the microseismic sensor (1011) via the threaded column (1010). The microseismic sensor (1011) is electrically connected to a signal line (1012) that runs through a lip seal ring (107), a through hole (106) and a connection cover (108).

3. According to claim 1, a top coal caving safety mining monitoring device based on microseismic and electrical method coupling is characterized by: The adjusting and fixing structure (2) comprises a mounting ring (201) mounted below the surface of the fixing cylinder (101), and a synchronous cylinder (202) is fixed above the surface of the mounting ring (201), and an adjusting ring (203) is fixed at the output end of the synchronous cylinder (202), and a sliding groove (204) is provided inside the adjusting ring (203) for sliding adjustment relative to the heat sink (102).

4. The device for monitoring safe top coal mining based on microseismic and electrical coupling according to claim 3 is characterized by: A through-hole protrusion (205) is fixed on the adjustment ring (203), and a double-hole connecting plate (206) is rotatably mounted on the through-hole protrusion (205) via a connecting pin, and the double-hole connecting plate (206) is rotatably connected to another through-hole protrusion (205) via a connecting pin, and a connecting block (207) is fixed above the other through-hole protrusion (205), and sliders (208) are fixed on both sides of the connecting block (207), and an adjustment support rod (209) is fixed on one end of the connecting block (207).

5. The device for monitoring safe top coal mining based on microseismic and electrical coupling according to claim 4 is characterized in that: The sliding block (208) is slidably connected to the connecting groove (2011) via a sliding groove (2010), and the connecting groove (2011) is provided below the bottom of the fixing ring (2012). At the same time, a rod outlet hole (2013) is provided through the connecting groove (2011) for conveniently adjusting the support rod (209) to receive and extend. The fixing ring (2012) is fixedly installed above the surface of the fixing tube (101).

6. The device for monitoring safe top coal mining based on microseismic and electrical coupling according to claim 3 is characterized by: A bellows (2014) is fixedly installed between the adjustment ring (203) and the installation ring (201), and the bellows (2014) is fixedly installed between the adjustment ring (203) and the installation ring (201).

7. The device for monitoring safe top coal mining based on microseismic and electrical coupling according to claim 1 is characterized by: Six heat sinks (102) are provided, and the heat sinks (102) are arranged in a circular array with respect to the surface of the fixing cylinder (101).

8. The device for monitoring safe top coal caving mining based on microseismic and electrical method coupling according to claim 2 is characterized by: The overall shape of the connection cover (108) is a "conical" structure.

9. The device for monitoring safe top coal caving mining based on microseismic and electrical method coupling according to claim 5 is characterized by: The rod outlet holes (2013) are provided with four holes, and the rod outlet holes (2013) are arranged symmetrically about the axis.

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