Underground intelligent movable filling slurry pressure relief system and using method

Abstract

The invention relates to the technical field of mine filling, in particular to an underground intelligent movable filling slurry pressure relief system and a using method. The underground intelligent movable filling slurry pressure relief system comprises an intelligent movable carrier and a pressure relief barrel installed on the intelligent movable carrier, and the pressure relief barrel is connected with a filling main pipeline, a filling branch pipeline and a drainage pipeline which are communicated with an inner cavity of the pressure relief barrel. A first control valve, a second control valve and a third control valve are respectively arranged on the filling main pipeline, the filling branch pipeline and the drainage pipeline. The device has the advantages that the design is simple and reasonable, the flow and pressure of filling slurry can be controlled in real time, the pressure of a filling pipeline is effectively reduced, and the phenomena of pipe blockage and pipe explosion are greatly reduced; one or more goaf areas can be filled at the same time according to needs, and the filling period is shortened; and the device can be freely moved to each filling place as required, so that the filling working efficiency and the safety coefficient are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mine filling, and in particular to an underground intelligent movable filling slurry pressure relief system and a use method thereof. Background Art

[0002] With the gradual increase in mining depth, the backfill mining method has received more and more attention and urgent needs from mines at home and abroad. In the backfill mining process of mines, the backfill system determines the success or failure of the backfill mining method. It mainly includes the backfill material preparation system, the pumping system and the pipeline transportation system. Among them, the pipeline transportation system is a key link in the backfill system. Whether it can be transported normally will directly affect the backfill material preparation system and the pumping system. For the pipeline transportation system, due to the continuous increase in the mass concentration of the backfill slurry and the filling multiple, the traditional gravity system has gradually failed to meet the filling needs, and the filling high-pressure pump has become an indispensable equipment for the filling system. However, during the backfill slurry pumping process, due to the large filling volume and flow rate, the pressure of the horizontal filling pipeline in the lower part of the mine is also large, which is prone to pipe burst accidents, and it is difficult to control the branch filling system, which seriously affects the safe production of the mine.

[0003] In response to the above-mentioned difficulties, the invention patent with application number CN201611028572.6 discloses a deep well filling pipeline pressure relief and transportation device, the core component of which is a funnel-shaped pressure relief box, which can reduce the flow rate and pressure of the filling slurry at the inlet, and can achieve a diversion effect at the outlet. The disadvantage of this method is that it is difficult to withstand the impact and wear of the filling slurry at the inlet for a long time, the pressure relief effect is not good, and it cannot be moved intelligently according to the filling needs. In addition, the invention patent with application number CN202111299155.6 discloses a resistance-increasing pressure relief system for filling slurry pipeline transportation, which achieves pipeline speed and pressure reduction by adding horizontal pipelines and reducing diameters. The disadvantage of this method is that the pressure relief effect is general, it can only meet the filling of one goaf, and cannot fill two or more goafs at the same time, and the movement efficiency is low, and the manual labor intensity is high.

[0004] Based on this, it is necessary to develop an underground intelligent movable filling slurry pressure relief system and a method of use to overcome the above technical problems. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an underground intelligent movable filling slurry pressure relief system and a use method, which effectively overcomes the defects of the prior art.

[0006] The technical solution of the present invention to solve the above technical problems is as follows:

[0007] An underground intelligent movable filling slurry pressure relief system includes an intelligent mobile carrier and a pressure relief barrel installed on the above-mentioned intelligent mobile carrier, the above-mentioned pressure relief barrel is connected to a filling main pipeline, a filling branch pipeline and a drainage pipeline communicated with its inner cavity, and the above-mentioned filling main pipeline, the filling branch pipeline and the drainage pipeline are respectively provided with a first control valve, a second control valve and a third control valve.

[0008] Based on the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the above-mentioned intelligent mobile carrier is a robot car.

[0010] Furthermore, the intelligent mobile carrier is connected to a processor, the processor is provided with a communication module, and the communication module is connected to a background control terminal via a network.

[0011] Furthermore, the first control valve, the second control valve and the third control valve are all electric pressure relief valves, and the first control valve, the second control valve and the third control valve are respectively connected to the processor.

[0012] Furthermore, the outlet ends of the first control valve, the second control valve and the third control valve are respectively provided with electronic flow meters, and the electronic flow meters are respectively connected to the processors.

[0013] Furthermore, two filling branch pipes are provided.

[0014] Furthermore, there is also a pressure detection system, which includes an electronic pressure gauge and an alarm. The electronic pressure gauge is connected and installed on the top of the pressure relief barrel, and the alarm is installed on an intelligent mobile carrier. The electronic pressure gauge and the alarm are respectively connected to the processor.

[0015] Furthermore, the lower part of the side wall of the pressure relief barrel is respectively provided with a filling transfer main pipe, a drainage transfer branch pipe and a filling transfer branch pipe connected to its inner cavity, the first control valve is installed between one end of the filling main pipe and the port of the filling transfer main pipe, the second control valve is installed between one end of the filling branch pipe and the port of the filling transfer branch pipe, and the third control valve is installed between one end of the drainage pipe and the port of the drainage transfer branch pipe.

[0016] Furthermore, the pressure relief barrel comprises a barrel body with an open upper end and a barrel cover installed on the upper end of the barrel body.

[0017] The beneficial effects of the present invention are: simple and reasonable design, capable of controlling the filling slurry flow and pressure in real time, effectively reducing the filling pipeline pressure, and greatly reducing the occurrence of pipe blockage and pipe burst; one or more goafs can be filled at the same time as needed, shortening the filling cycle; and it can also be freely moved to various filling locations as needed, greatly improving the filling work efficiency and safety factor.

[0018] A method for using an underground intelligent movable filling slurry pressure relief system is also provided, comprising the following steps:

[0019] Step 1: Move the entire system and place it in the middle transport lane to be filled;

[0020] Step 2: Connect the filling main pipeline to the water supply system of the filling station, connect the drainage pipeline to the sedimentation tank, open the first control valve and the third control valve, and clean and lubricate the pipeline;

[0021] Step 3: Connect the filling main pipeline to the filling station on the ground, connect the filling branch pipeline to the extension pipe, and extend it to the goaf, open the first control valve and the second control valve, use the ground filling station to transport the slurry through the filling main pipeline, and after the pressure is released in the pressure relief tank, flow into the goaf through the filling branch pipeline. During the filling process, monitor the pressure in the pipeline and the pressure relief tank in real time, and adjust the filling flow rate in time so that the pressure does not exceed the set value until the filling is completed;

[0022] Step 4: Repeat step 2 above, then remove the pipeline connection.

[0023] The beneficial effects are: the method of use is simple, and it can realize real-time intelligent monitoring and control of the filling slurry flow and pressure, effectively reduce the filling pipeline pressure, and greatly reduce the occurrence of pipe blockage and pipe burst. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the underground intelligent movable filling slurry pressure relief system of the present invention.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Intelligent mobile carrier; 2. Pressure relief barrel; 3. Filling main pipeline; 4. Filling branch pipeline; 5. Drainage pipeline; 21. Filling transfer main pipeline; 22. Drainage transfer branch pipeline; 23. Filling transfer branch pipeline; 31. First control valve; 41. Second control valve; 51. Third control valve; 61. Electronic pressure gauge. DETAILED DESCRIPTION

[0027] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0028] Example

[0029] like Figure 1As shown, the underground intelligent movable filling slurry pressure relief system of this embodiment includes an intelligent mobile carrier 1 and a pressure relief barrel 2 installed on the above-mentioned intelligent mobile carrier 1, and the above-mentioned pressure relief barrel 2 is connected to a filling main pipeline 3, a filling branch pipeline 4 and a drainage pipeline 5 which are connected to its inner cavity, and the above-mentioned filling main pipeline 3, the filling branch pipeline 4 and the drainage pipeline 5 are respectively provided with a first control valve 31, a second control valve 41 and a third control valve 51.

[0030] The method for using the underground intelligent movable filling slurry pressure relief system comprises the following steps:

[0031] Step 1: Move the entire system using the intelligent mobile carrier 1 and place it in the middle transport lane to be filled;

[0032] Step 2: First, connect the filling main pipeline 3 to the filling station water supply system, and at the same time, connect the drainage pipeline 5 to the sedimentation tank, then open the first control valve 31 and the third control valve 51, clean and lubricate the pipeline, and close the first control valve 31 and the third control valve 51 after cleaning;

[0033] Step 3, connect the filling main pipeline 3 to the filling ground filling station, connect the filling branch pipeline 4 to the extension pipe, and extend the extension pipe into the goaf, then open the first control valve 31 and the second control valve 41, use the ground filling station to transport the slurry through the filling main pipeline 3, the transported slurry enters the pressure relief barrel 2 for pressure relief, and then flows into the goaf through the filling branch pipeline 4. During the filling process, it is necessary to monitor the pressure in the pipeline and the pressure relief barrel 2 in real time, and adjust the filling flow rate in time so that the pressure does not exceed the set value until the filling is completed;

[0034] Step 4: Repeat step 2 above to clean the pipeline and pressure relief barrel 2, then remove the pipeline connection and remove it from the system.

[0035] In this embodiment, the intelligent mobile carrier 1 can be an intelligent robot car available on the market. The intelligent robot car is equipped with direction control, brake control, and speed control, and the overall load-bearing capacity is up to 40kN-60kN. A stainless steel plate can be installed on the upper end of the entire intelligent robot car, and the pressure relief barrel 2 is welded and fixed on the plate. The plate can be designed with a length of 1.4m-2.2m, a width of 1.4m-2.2m, and a thickness of 3cm-6cm.

[0036] In this embodiment, the above-mentioned intelligent mobile carrier 1 is connected to a processor, and the above-mentioned processor is provided with a communication module, and the above-mentioned communication module is connected to a background control terminal through a network. The background control terminal sends instructions to the processor, and the intelligent mobile carrier 1 can be driven to move, thereby realizing remote control. Among them, the background control terminal can be a mobile phone, an APP, a computer, or a remote controller.

[0037] In this embodiment, the first control valve 31, the second control valve 41 and the third control valve 51 are all electric pressure relief valves, and the first control valve 31, the second control valve 41 and the third control valve 51 are connected to the processors, respectively. The first control valve 31, the second control valve 41 and the third control valve 51 can be remotely controlled through the background control terminal to control the opening and closing states of the valves and adjust the flow in the pipeline.

[0038] In this embodiment, the outlet ends of the first control valve 31, the second control valve 41, and the third control valve 51 are respectively provided with electronic flow meters, and the electronic flow meters are respectively connected to the processors. The three control valves can monitor the flow rate of the fluid passing through in real time through the electronic flow meter, and then feed back the data to the background control terminal through the processor. The background control terminal interface adjusts the flow state of the first control valve 31, the second control valve 41, and the third control valve 51 according to the flow rate, so as to adjust the flow meter pressure.

[0039] In this embodiment, two filling branch pipes 4 are provided, so that two goafs can be filled at the same time as required, thus shortening the filling cycle.

[0040] As a preferred embodiment, a pressure detection system is also provided, which includes an electronic pressure gauge 61 and an alarm. The electronic pressure gauge 61 is connected and installed on the top of the pressure relief barrel 2, and the alarm is installed on the intelligent mobile carrier 1. The electronic pressure gauge 61 and the alarm are respectively connected to the processor.

[0041] In the above implementation scheme, the electronic pressure gauge 61 can monitor the pressure in the pressure relief barrel 2 in real time. When it reaches 3 / 4 of its maximum working pressure, it will be fed back to the background control terminal in time, and an alarm will be sounded through the alarm. At the same time, the background control terminal will adjust the slurry flow of the first control valve 31 and the second control valve 41 in real time to ensure that the pressure in the pressure relief barrel 2 will not exceed the set value, and the safety performance is relatively high.

[0042] In this embodiment, after the target goaf is filled, the connection between the filling main pipeline 3 and the filling branch pipeline 4 and the pressure relief barrel 2 is removed, and the entire system is transferred to the next target filling location using the intelligent mobile carrier 1.

[0043] As a preferred embodiment, the lower part of the side wall of the pressure relief barrel 2 is respectively provided with a filling transfer main pipe 21, a drainage transfer branch pipe 22 and a filling transfer branch pipe 23 connected to its inner cavity, the first control valve 31 is installed between one end of the filling main pipe 3 and the port of the filling transfer main pipe 21, the second control valve 41 is installed between one end of the filling branch pipe 4 and the port of the filling transfer branch pipe 23, and the third control valve 51 is installed between one end of the drainage pipe 5 and the port of the drainage transfer branch pipe 22.

[0044] In the above-mentioned implementation scheme, flanges are respectively provided at the ports of the filling transfer main pipeline 21, the drainage transfer branch pipeline 22 and the filling transfer branch pipeline 23, and flanges are also respectively provided at the ports of the filling main pipeline 3, the filling branch pipeline 4 and the drainage pipeline 5. The inlet and outlet ends of the first control valve 31 are respectively provided with flanges, and the inlet and outlet flanges of the first control valve 31 are butt-joined with the flanges of the port of the filling main pipeline 3 and the port of the filling transfer main pipeline 21 and fixed by bolts. Similarly, flanges are respectively provided at the inlet and outlet ends of the second control valve 41, and the inlet and outlet flanges of the second control valve 41 are butt-joined with the flanges of the port of the filling branch pipeline 4 and the filling transfer branch pipeline 23 and fixed by bolts; flanges are respectively provided at the inlet and outlet ends of the third control valve 51, and the inlet and outlet flanges of the third control valve 51 are butt-joined with the flanges of the port of the drainage transfer branch pipeline 22 and the drainage pipeline 5 and fixed by bolts.

[0045] In this embodiment, the pressure relief barrel 2 comprises a barrel body with an open upper end and a barrel cover a mounted on the upper end of the barrel body. A flange is provided at the upper end of the barrel body, and the barrel cover fits on the flange at the upper end of the barrel body, and the edges of the two are fixed by bolts.

[0046] It should be noted that: in this embodiment, the filling main pipe 3 is made of stainless steel chrome wear-resistant pipe, and the outer side of the pipe is painted for protection. The filling main pipe 3 has a thickness of 1.5-5.0mm and a diameter of 100mm-180mm. The filling transfer main pipe 21 has a thickness of 1.5mm-5.0mm, a diameter of 100mm-180mm, and a length of 20cm-100cm. The filling transfer branch pipe 23 has a thickness of 1.5-3.5mm, a diameter of 90mm-150mm, and a length of 30cm-100cm. The filling branch pipe 4 is a polyamide fiber or polyethylene foam pipe, and the filling branch pipe 4 has a thickness of 1.0-3.0mm and a diameter of 80mm-120mm. The drainage transfer branch pipe 22 has a thickness of 1.5-3.5mm, a diameter of 80mm-120mm, and a length of 30cm-100cm. The drainage pipe 5 is a polyamide fiber or polyethylene foam pipe, with a thickness of 1.0-3.0mm and a diameter of 80mm-120mm. The pressure relief barrel 2 has a thickness of 5mm-20mm, a diameter of 1.0m-1.8m, and a height of 60cm-120cm. The maximum working pressure that the pressure relief barrel 2 can withstand is 1.0Mpa-2.25Mpa. The barrel cover has a thickness of 10mm-20mm and a diameter of 1.1m-1.9m. The maximum working pressure that the barrel cover can withstand is 1.0Mpa-2.0Mpa. The barrel cover has two handles b for easy removal after opening.

[0047] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0049] In the present invention, 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0052] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An underground intelligent movable filling slurry pressure relief system, characterized by: The invention comprises an intelligent mobile carrier (1) and a pressure relief barrel (2) mounted on the intelligent mobile carrier (1); the pressure relief barrel (2) is connected to a filling main pipe (3), a filling branch pipe (4) and a drainage pipe (5) which are in communication with its inner cavity; the filling main pipe (3), the filling branch pipe (4) and the drainage pipe (5) are respectively provided with a first control valve (31), a second control valve (41) and a third control valve (51).

2. The underground intelligent movable filling slurry pressure relief system according to claim 1 is characterized by: The intelligent mobile carrier (1) is a robot car.

3. The underground intelligent movable filling slurry pressure relief system according to claim 2 is characterized by: The intelligent mobile carrier (1) is connected to a processor, the processor is provided with a communication module, and the communication module is connected to a background control terminal via a network.

4. The underground intelligent movable filling slurry pressure relief system according to claim 3 is characterized by: The first control valve (31), the second control valve (41) and the third control valve (51) are all electric pressure relief valves, and the first control valve (31), the second control valve (41) and the third control valve (51) are respectively connected to the processor.

5. The underground intelligent movable filling slurry pressure relief system according to claim 4 is characterized in that: The outlet ends of the first control valve (31), the second control valve (41), and the third control valve (51) are respectively provided with electronic flow meters, and the electronic flow meters are respectively connected to the processors.

6. The underground intelligent movable filling slurry pressure relief system according to claim 4 is characterized by: The filling branch pipes (4) are provided with two.

7. The underground intelligent movable filling slurry pressure relief system according to claim 4 is characterized by: A pressure detection system is also provided, the pressure detection system comprising an electronic pressure gauge (61) and an alarm, the electronic pressure gauge (61) being connected and mounted on the top of the pressure relief barrel (2), the alarm being mounted on the intelligent mobile carrier (1), and the electronic pressure gauge (61) and the alarm being connected to the processor respectively.

8. An underground intelligent movable filling slurry pressure relief system according to any one of claims 1 to 7, characterized in that: The lower part of the side wall of the pressure relief barrel (2) is respectively provided with a filling transfer main pipe (21), a drainage transfer branch pipe (22) and a filling transfer branch pipe (23) which are connected to its inner cavity; the first control valve (31) is installed between one end of the filling main pipe (3) and a port of the filling transfer main pipe (21); the second control valve (41) is installed between one end of the filling branch pipe (4) and a port of the filling transfer branch pipe (23); and the third control valve (51) is installed between one end of the drainage pipe (5) and a port of the drainage transfer branch pipe (22).

9. An underground intelligent movable filling slurry pressure relief system according to any one of claims 1 to 7, characterized in that: The pressure relief barrel (2) comprises a barrel body with an open upper end and a barrel cover installed on the upper end of the barrel body.

10. A method for using the underground intelligent movable filling slurry pressure relief system according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Move the entire system and place it in the middle transport lane to be filled; Step 2: Connect the filling main pipeline (3) to the filling station water supply system, connect the drainage pipeline (5) to the sedimentation tank, open the first control valve (31) and the third control valve (51), and clean and lubricate the pipeline; Step 3: connect the filling main pipeline (3) to the filling station on the ground, connect the filling branch pipeline (4) to the extension pipe and extend it into the goaf, open the first control valve (31) and the second control valve (41), use the ground filling station to transport the slurry through the filling main pipeline (3), and after the pressure is released in the pressure relief tank (2), the slurry flows into the goaf through the filling branch pipeline (4). During the filling process, the pressure in the pipeline and the pressure relief tank is monitored in real time, and the filling flow rate is adjusted in time so that the pressure does not exceed the set value until the filling is completed; Step 4: Repeat step 2 above, then remove the pipeline connection.

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