A non-cemented gangue paste stability detection device

Abstract

The application belongs to the technical field of mine filling, and particularly relates to a non-cemented gangue slurry stability detection device. The application provides a non-cemented gangue slurry stability detection device, which comprises a base, a transparent slurry barrel, a plurality of electromagnetic valves, a plurality of electromagnetic valve switches and a weighing assembly. The transparent slurry barrel is installed on the upper surface of the base, a plurality of electromagnetic valves are installed on the side of the transparent slurry barrel from top to bottom, the electromagnetic valves are electrically connected with the electromagnetic valve switches one by one, and the weighing assembly is all or partially arranged on the bottom of the transparent slurry barrel and used for weighing the weight of the content in the transparent slurry barrel. The detection device provided by the application is used for observing and calculating the water bleeding rate of the sample to be measured after standing, and the deposition rate is calculated by measuring the weight of the sample to be measured at different heights after long-time standing, so that the water bleeding rate and the deposition rate of the non-cemented gangue slurry of the sample to be measured are obtained.

Description

Technical Field

[0001] This application belongs to the field of mine backfilling technology, and in particular relates to a device for testing the stability of uncemented gangue slurry. Background Technology

[0002] To treat coal gangue solid waste, non-cemented gangue slurry can be injected into the goaf of a mine via pumping or gravity flow for backfilling, thereby stabilizing the goaf and treating the coal gangue. During the backfilling process, the stability of the non-cemented gangue slurry is crucial because continuous production is not possible. Highly stable non-cemented gangue slurry can be retained in pipelines or goafs for extended periods, which is essential for improving the production efficiency and resilience of the non-cemented gangue slurry injection process.

[0003] In the existing technology, there is a lack of a device for detecting the stability of unconsolidated gangue slurry, which can provide real-time feedback on the state of unconsolidated gangue slurry and ensure good filling effect of unconsolidated gangue slurry material.

[0004] Therefore, developing a device for testing the stability of unconsolidated gangue slurry to address the technical deficiency in existing technologies, which lack a device for testing the stability of unconsolidated gangue slurry, has become an urgent problem for those skilled in the art. Utility Model Content

[0005] Therefore, it is necessary to provide a device for detecting the stability of unconsolidated gangue slurry, which is currently lacking in the existing technology.

[0006] This application provides a device for testing the stability of unconsolidated gangue slurry. The device includes: a base, a transparent slurry tank, multiple electromagnetic valves, multiple electromagnetic valve switches, and a weighing assembly. The transparent slurry tank is installed on the upper surface of the base. Multiple electromagnetic valves are installed on the side of the transparent slurry tank from top to bottom. The electromagnetic valves are electrically connected to the electromagnetic valve switches one by one. The weighing assembly is located, in whole or in part, at the bottom of the transparent slurry tank and is used to weigh the contents of the transparent slurry tank.

[0007] In one embodiment, the weighing assembly includes a display, a zeroing button, and a pressure sensor. The pressure sensor is disposed at the bottom of the transparent slurry tank, and the display and zeroing button are disposed on the upper surface of the base. The pressure sensor is electrically connected to the display and zeroing button.

[0008] In one embodiment, there are 5 solenoid valves and 5 solenoid valve switches. The 5 solenoid valves, from top to bottom, are: first solenoid valve, second solenoid valve, third solenoid valve, fourth solenoid valve and fifth solenoid valve, which are electrically connected to the first solenoid valve switch, second solenoid valve switch, third solenoid valve switch, fourth solenoid valve switch and fifth solenoid valve switch respectively.

[0009] In one embodiment, the inner diameter of the solenoid valve is 50 mm, and the suction force of the solenoid valve is 5 Newtons.

[0010] In one embodiment, the pressure-sensitive sensor has a pressure-bearing range of 0N to 500N.

[0011] In one embodiment, the surface of the transparent slurry tank is provided with graduations.

[0012] In one embodiment, the transparent slurry tank has a height of 1000 mm, the scale division is 1 mm, and the inner diameter of the transparent slurry tank is 100 mm.

[0013] In one embodiment, the detection device further includes a main switch disposed on the upper surface of the base, the main switch being electrically connected to the geomagnetic valve switch and the weighing assembly respectively.

[0014] In one embodiment, the pressure sensor has a range of 20,000 grams, and the display has a graduation value of 0.1 grams.

[0015] In one embodiment, the transparent slurry tank is detachably connected to the base.

[0016] In summary, this application provides a device for testing the stability of unconsolidated gangue slurry. The device includes a base, a transparent slurry tank, multiple electromagnetic valves, multiple electromagnetic valve switches, and a weighing assembly. The transparent slurry tank is mounted on the upper surface of the base. Multiple electromagnetic valves are installed on the side of the transparent slurry tank from top to bottom, and each electromagnetic valve is electrically connected to one of the electromagnetic valve switches. The weighing assembly is wholly or partially located at the bottom of the transparent slurry tank for weighing the contents of the tank. The device provided in this application observes and calculates the bleeding rate of the sample after it has been left to stand, and calculates the deposition rate by measuring the weight of the sample at different heights after prolonged standing, thereby obtaining the bleeding rate and deposition rate of the unconsolidated gangue slurry. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 A front view of a non-cemented gangue slurry stability testing device provided in the technical solution of this application embodiment;

[0019] Figure 2 A top view of a non-cemented gangue slurry stability testing device provided in the technical solution of this application embodiment;

[0020] The components include: base 1, transparent slurry tank 2, display 3, first solenoid valve 4, second solenoid valve 5, third solenoid valve 6, fourth solenoid valve 7, fifth solenoid valve 8, main switch 9, power cord 10, first valve switch 11, second solenoid valve switch 12, third solenoid valve switch 13, fourth solenoid valve switch 14, fifth solenoid valve switch 15, zeroing button 16, and pressure sensor 17. Detailed Implementation

[0021] This application provides a device for testing the stability of unconsolidated gangue slurry, which addresses the technical deficiency in the prior art of lacking a device for testing the stability of unconsolidated gangue slurry.

[0022] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0023] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] Please see Figure 1 and Figure 2 This application provides a device for testing the stability of unconsolidated gangue slurry, including: a base 1, a transparent slurry tank 2, multiple electromagnetic valves, multiple electromagnetic valve switches, and a weighing component; the transparent slurry tank 2 is installed on the upper surface of the base 1, and multiple electromagnetic valves are installed on the side of the transparent slurry tank 2 from top to bottom, with each electromagnetic valve and electromagnetic valve switch electrically connected in a one-to-one correspondence; the weighing component is located entirely or partially at the bottom of the transparent slurry tank 2 and is used to weigh the contents of the transparent slurry tank 2.

[0027] In the technical solution provided in this application embodiment, the stability of the sample to be tested, namely the uncemented gangue slurry, is evaluated by measuring the water bleeding rate and weight change at different heights.

[0028] Specifically, the process includes: placing the sample to be tested in a transparent slurry tank 2; after the sample has been left to stand in the transparent slurry tank 2, extracting the water that has seeped out; and then weighing the change in weight of the sample in the transparent slurry tank 2 using a weighing device to calculate the water seepage rate.

[0029] After standing for a long time, the solenoid valves are opened sequentially by the solenoid valve switch, and the weight of the sample to be tested at different heights is recorded. The weight change difference after the sample to be tested at the same height is compared, so as to determine the stability of the sample to be tested.

[0030] By calculating the bleeding rate and weighing the samples at different locations, it is possible to determine whether the samples meet the technical requirements for mine filling, thereby improving the efficiency of mine filling production and its ability to withstand risks.

[0031] To further optimize the technical solution, this application provides a non-cemented gangue slurry stability testing device, in which the weighing component includes: a display 3, a zeroing button 16, and a pressure sensor 17. The pressure sensor 17 is disposed at the bottom of the transparent slurry tank 2, and the display 3 and the zeroing button 16 are disposed on the upper surface of the base 1. The pressure sensor 17 is electrically connected to the display 3 and the zeroing button 16. The display 3 can display the weight data of the sample to be tested acquired by the pressure sensor 17 in real time. When multiple measurements are required, the zeroing button 16 zeroes the pressure sensor 17 in real time, and the pressure sensor 17 retransmits the updated weight data to the display 3.

[0032] To further optimize the technical solution, this application provides a non-cemented gangue slurry stability testing device, which includes five electromagnetic valves and five electromagnetic valve switches. The five electromagnetic valves, from top to bottom, are: first electromagnetic valve 4, second electromagnetic valve 5, third electromagnetic valve 6, fourth electromagnetic valve 7, and fifth electromagnetic valve 8, respectively, and are electrically connected to the first electromagnetic valve switch 11, second electromagnetic valve switch 12, third electromagnetic valve switch 13, fourth electromagnetic valve switch 14, and fifth electromagnetic valve switch 15. Calculations show that the overall testing accuracy achieved by the five electromagnetic valves, positioned from top to bottom on the side of the transparent slurry tank 2, meets the requirements for mine filling.

[0033] To further optimize the technical solution, considering that the electromagnetic valve can extract the sample to be tested without affecting the properties of the remaining sample to be tested in the transparent slurry tank 2, the inner diameter of the electromagnetic valve in the technical solution provided in this application embodiment is 50 mm and the suction force of the electromagnetic valve is 5 Newtons.

[0034] Similarly, in order to meet the weighing requirements of the sample to be tested, while taking into account the weighing accuracy of the pressure sensor 17, the pressure range of the pressure sensor 17 in the technical solution provided in this application embodiment is 0N to 500N.

[0035] To facilitate real-time observation of the water seepage volume of the sample in the transparent slurry container 2 and to more conveniently and accurately calculate the water seepage rate, the technical solution provided in this application embodiment features a scale on the surface of the transparent slurry container 2. The water seepage volume can be obtained through the scale, and the water seepage weight can be converted directly to calculate the water seepage rate. This eliminates the need to extract the water before calculation, resulting in a more accurate and convenient calculation process.

[0036] To further optimize the technical solution and meet the routine testing requirements of the samples to be tested, while taking into account the accuracy of the test results, the non-cemented gangue slurry stability testing device provided in this application embodiment has a transparent slurry tank 2 with a height of 1000 mm, a scale division of 1 mm, and an inner diameter of 100 mm.

[0037] To effectively extend the service life of each component in the testing device and to activate each component during use, the non-cemented gangue slurry stability testing device provided in this application embodiment further includes: a main switch, which is disposed on the upper surface of the base 1 and electrically connected to the geomagnetic valve switch and the weighing assembly. The main switch is energized after being connected to an external power supply line 10, and activating the main switch starts the operation of each component.

[0038] To ensure the accuracy of the weighing results from the pressure sensor 17 and to further display them accurately in real time via the display 3, the pressure sensor 17 has a weighing range of 20,000 grams, and the display 3 has a graduation value of 0.1 grams in the technical solution provided in this application embodiment.

[0039] To further optimize the technical solution, and to facilitate timely cleaning of the transparent slurry tank 2 after testing, the technical solution provided in this application embodiment features a detachable connection between the transparent slurry tank 2 and the base 1. Disassembling and cleaning the transparent slurry tank 2 is more convenient, faster, and ensures a better cleaning effect, further guaranteeing the accuracy of subsequent test results for other samples.

[0040] To better illustrate the unconsolidated gangue slurry stability testing device provided in this application, the working process of the unconsolidated gangue slurry stability testing device provided in this application will be briefly introduced below.

[0041] After connecting the power cord 10, turn on the main switch to open the detection device. After clicking the zeroing button 16 to clear the display value of the display 3, close the first solenoid valve 4, the second solenoid valve 5, the third solenoid valve 6, the fourth solenoid valve 7, and the fifth solenoid valve 8.

[0042] Slowly pour the sample to be tested into the transparent slurry container 2 along the inside of the container until the sample is level with the top of the container. Record the mass value m on the display 3. 初0 .

[0043] After the sample to be tested is loaded into the transparent slurry tank 2, the first solenoid valve 4 is opened by turning on the first solenoid valve switch 11. After the sample to be tested above the first solenoid valve 4 is completely emptied, the value m on the display 3 is recorded. 初1Open the second solenoid valve switch 12 to open the second solenoid valve 5. After the sample to be tested above the second solenoid valve 5 has been completely discharged, record the mass value m on the display 3. 初2 Open the third solenoid valve switch 13 to open the third solenoid valve 6. After the sample to be tested above the third solenoid valve 6 is completely emptied, record the value m on the display 3. 初3 Open the fourth solenoid valve switch 14 to open the fourth solenoid valve 7. After the sample to be tested above the fourth solenoid valve 7 is completely emptied, record the value m on the display 3. 初4 Open the fifth solenoid valve switch 1 to open the fifth solenoid valve 8. After the sample to be tested above the fifth solenoid valve 8 has been completely emptied, record the value m on the display 3. 初5 .

[0044] Rinse the transparent slurry tank 2 clean, close the first solenoid valve 4, the second solenoid valve 5, the third solenoid valve 6, the fourth solenoid valve 7, and the fifth solenoid valve 8, and slowly pour the sample to be tested into the transparent slurry tank 2 along the inside until it is level with the top of the tank, and record the mass value m0 on the display 3.

[0045] The length of the slurry portion of the sample to be tested, L*, is recorded on one side of the transparent slurry container 2 every 2 hours; where * represents the recording time, for example, the value recorded at 2 hours is L2, and the value recorded at 4 hours is L4. When L* is less than 950 mm, the time T is recorded. The larger the T value, the better the stability of the sample to be tested.

[0046] When L* is less than 950 mm, open the first solenoid valve switch 11 to open the first solenoid valve 4. After the sample to be tested above the first solenoid valve 4 is completely drained, record the mass value m1 on the display 3. Open the second solenoid valve switch 12 to open the second solenoid valve 5. After the uncemented gangue slurry above the second solenoid valve 5 is completely drained, record the value m2 on the display 3. Open the third solenoid valve switch 13 to open the third solenoid valve 6. After the sample to be tested above the third solenoid valve 6 is completely drained, record the value m3 on the display 3. Open the fourth solenoid valve switch 14 to open the fourth solenoid valve 7. After the sample to be tested above the fourth solenoid valve 7 is completely drained, record the value m4 on the display 3. Open the fifth solenoid valve switch 1 to open the fifth solenoid valve 8. After the sample to be tested above the fifth solenoid valve 8 is completely drained, record the value m5 on the display 3.

[0047] After recording the above data, calculate and process the data according to the following formulas 1 and 2 to obtain the data ω0 and ω1.

[0048] Formula 1:

[0049] Formula 2:

[0050] Using the uncemented gangue slurry stability testing device provided in this application embodiment, in conjunction with the above formulas 1 and 2, the measured ω0 is the initial reference value, and the measured ω1 is the value measured after standing for a period of time. If the sample to be tested has good stability, the smaller the difference between the measured ω0 and ω1, the closer it will be to zero; the stability of the sample to be tested can be determined by comparing the difference.

[0051] After standing, the height of the upper layer of water in the transparent slurry tank 2 is read, and the weight of the upper layer of water is calculated. This weight is then divided by the total weight of the sample to be tested in the transparent slurry tank 2 to obtain the water penetration rate of the sample to be tested.

[0052] The obtained data can be used to optimize the use of uncemented gangue slurry in engineering applications, ensuring that the stability of the slurry meets production standards, thereby improving production efficiency and resilience during the production process, and reducing the risk of pipe blockage during long-term filling.

[0053] In summary, this application provides a device for testing the stability of unconsolidated gangue slurry. The device includes a base, a transparent slurry tank, multiple electromagnetic valves, multiple electromagnetic valve switches, and a weighing assembly. The transparent slurry tank is mounted on the upper surface of the base. Multiple electromagnetic valves are installed on the side of the transparent slurry tank from top to bottom, and each electromagnetic valve is electrically connected to one of the electromagnetic valve switches. The weighing assembly is wholly or partially located at the bottom of the transparent slurry tank for weighing the contents of the tank. The device provided in this application observes and calculates the bleeding rate of the sample after it has been left to stand, and calculates the deposition rate by measuring the weight of the sample at different heights after prolonged standing, thereby obtaining the bleeding rate and deposition rate of the unconsolidated gangue slurry.

[0054] The technical features of the embodiments described above can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. Furthermore, other implementation methods can be derived from the above embodiments, allowing for structural and logical substitutions and changes without departing from the scope of this disclosure.

[0055] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A device for testing the stability of unconsolidated gangue slurry, characterized in that, The detection device includes: a base, a transparent slurry tank, multiple solenoid valves, multiple solenoid valve switches, and a weighing component; the transparent slurry tank is installed on the upper surface of the base, and multiple solenoid valves are installed on the side of the transparent slurry tank from top to bottom, with each solenoid valve electrically connected to a corresponding solenoid valve switch; the weighing component is located entirely or partially at the bottom of the transparent slurry tank and is used to weigh the contents of the transparent slurry tank.

2. The detection device according to claim 1, characterized in that, The weighing assembly includes a display, a zeroing button, and a pressure sensor. The pressure sensor is located at the bottom of the transparent slurry tank, and the display and zeroing button are located on the upper surface of the base. The pressure sensor is electrically connected to the display and zeroing button.

3. The detection device according to claim 1 or 2, characterized in that, The number of solenoid valves is 5, and the number of solenoid valve switches is 5. The 5 solenoid valves, from top to bottom, are: first solenoid valve, second solenoid valve, third solenoid valve, fourth solenoid valve, and fifth solenoid valve, which are electrically connected to the first solenoid valve switch, second solenoid valve switch, third solenoid valve switch, fourth solenoid valve switch, and fifth solenoid valve switch, respectively.

4. The detection device according to claim 3, characterized in that, The inner diameter of the solenoid valve is 50 mm, and the suction force of the solenoid valve is 5 Newtons.

5. The detection device according to claim 2, characterized in that, The pressure-sensitive sensor has a pressure-bearing range of 0N to 500N.

6. The detection device according to claim 1, characterized in that, The surface of the transparent slurry tank is marked with graduations.

7. The detection device according to claim 6, characterized in that, The transparent slurry tank has a height of 1000 mm, the scale division is 1 mm, and the inner diameter of the transparent slurry tank is 100 mm.

8. The detection device according to claim 1, characterized in that, The detection device further includes a main switch, which is disposed on the upper surface of the base and is electrically connected to the geomagnetic valve switch and the weighing assembly.

9. The detection device according to claim 2, characterized in that, The pressure sensor has a range of 20,000 grams, and the display has a graduation value of 0.1 grams.

10. The detection device according to claim 1, characterized in that, The transparent slurry tank is detachably connected to the base.

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