Automatic watering and spraying system for mine

Abstract

The utility model provides an automatic sprinkling and spraying system for a mine. The automatic sprinkling and spraying system comprises a plurality of spraying devices, a plurality of electromagnetic valves and a control circuit, the control circuit comprises a first relay, a second relay and a contactor. A coil of the first relay is connected in series with a starting loop of the belt conveyor, and a normally open contact of the first relay and a coil of the second relay are connected in series on the first power supply loop; a normally open contact of the second relay and a coil of the contactor are connected in series on the second power supply loop, and a first normally open contact of the contactor and a coil of the electromagnetic valve are connected in series on the third power supply loop. According to the automatic sprinkling and spraying system for the mine, automatic operation of all the spraying devices can be achieved while the belt conveyor is started, the production efficiency is effectively improved, potential safety hazards are reduced, and the situation that after the belt conveyor is started, part of the spraying devices are still not put into operation is not likely to occur.

Description

Technical Field

[0001] This disclosure relates to the field of mine water spraying technology, and in particular to an automatic mine water spraying system. Background Technology

[0002] In coal mining, water spraying in the mine is crucial, effectively improving the working environment, ensuring operational safety, and increasing production efficiency. Currently, most mine spraying devices are manually operated, which is not only inconvenient to operate, affecting production efficiency and posing safety hazards, but also prone to situations where some spraying devices remain inactive even after the conveyor belt has started, seriously affecting normal mine operations. Summary of the Invention

[0003] This disclosure aims to at least partially address one of the technical problems in the related art.

[0004] Therefore, the purpose of this disclosure is to provide an automatic water spraying system for mines.

[0005] To achieve the above objectives, this disclosure provides an automatic sprinkler system for mines, comprising: multiple spraying devices, multiple solenoid valves, and a control circuit; wherein, the spraying devices are arranged close to the conveyor belt of the mine, and the flow paths of the multiple solenoid valves are respectively arranged between the water outlet end of the water source and the water inlet end of the multiple spraying devices; the control circuit comprises: a first relay, a second relay, and a contactor; the coil of the first relay is connected in series with the starting circuit of the conveyor belt, and the normally open contact of the first relay and the coil of the second relay are connected in series in a first power supply circuit; the normally open contact of the second relay and the coil of the contactor are connected in series in a second power supply circuit, and the first normally open contact of the contactor and the coil of the solenoid valve are connected in series in a third power supply circuit.

[0006] Optionally, the control circuit further includes: a start switch; a third relay, wherein the coil of the third relay and the start switch are connected in series in a fourth power supply circuit, and the first normally open contact of the third relay is connected in series with the coil of the contactor, and the first normally open contact of the third relay and the normally open contact of the second relay are connected in parallel.

[0007] Optionally, the second normally open contact of the third relay is connected in series with the coil of the third relay, and the second normally open contact of the third relay is connected in parallel with the start switch.

[0008] Optionally, the control circuit further includes a stop switch, which is connected in series in the fourth power supply circuit.

[0009] Optionally, the control circuit further includes: a changeover switch, wherein the first switch of the changeover switch is connected in series in the first power supply circuit, and the second switch of the changeover switch is connected in series in the fourth power supply circuit; wherein the first switch and the second switch of the changeover switch are not turned on at the same time.

[0010] Optionally, the first power supply circuit, the second power supply circuit, and the fourth power supply circuit are connected in parallel.

[0011] Optionally, the control circuit further includes: a running indicator light, wherein the running indicator light and the second normally open contact of the contactor are connected in series in the fifth power supply circuit, and the fifth power supply circuit and the second power supply circuit are connected in parallel.

[0012] Optionally, the control circuit further includes a stop indicator light, wherein the stop indicator light and the normally closed contact of the contactor are connected in series in the sixth power supply circuit, and the sixth power supply circuit and the second power supply circuit are connected in parallel.

[0013] Optionally, multiple spray devices are evenly distributed along the length of the mine.

[0014] Optionally, the mine shaft is inclined along a preset slope.

[0015] The technical solution provided in this disclosure may include the following beneficial effects:

[0016] By utilizing the coordination of the first relay, the second relay, and the contactor in the control circuit, the automatic operation of each spraying device can be achieved simultaneously with the start of the belt conveyor. This avoids the need for manual switching of each spraying device, effectively improving production efficiency, reducing safety hazards, and preventing situations where some spraying devices are not yet operational after the belt conveyor has started, thus ensuring efficient and safe operation in the mine.

[0017] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0019] Figure 1 This is a circuit diagram of an automatic water spraying system for mines according to an embodiment of this disclosure;

[0020] Figure 2 This is a circuit diagram of an automatic water spraying system for mines according to an embodiment of this disclosure;

[0021] As shown in the figure: 1. Control circuit;

[0022] KA1, First Relay; KA2, Second Relay; KA3, Third Relay; KM, Contactor; SA, Start Switch; SB, Stop Switch;

[0023] 11. Changeover switch; 111. First switch; 112. Second switch;

[0024] 12. Run indicator light; 13. Stop indicator light; 14. First power supply circuit; 15. Second power supply circuit; 16. Third power supply circuit; 17. Fourth power supply circuit; 18. Fifth power supply circuit; 19. Sixth power supply circuit.

[0025] 2. Solenoid valve. Detailed Implementation

[0026] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are used only to explain this disclosure, and should not be construed as limiting this disclosure. Rather, embodiments of this disclosure include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0027] like Figure 1 and Figure 2 As shown in the figure, this disclosure proposes an automatic sprinkler system for mines, including: multiple spraying devices (not shown), multiple solenoid valves 2, and a control circuit 1. The spraying devices are positioned close to the conveyor belt in the mine, and the flow paths of the multiple solenoid valves 2 are respectively located between the water source outlet and the water inlet of the multiple spraying devices. The control circuit 1 includes: a first relay KA1, a second relay KA2, and a contactor KM. The coil of the first relay KA1 is connected in series with the starting circuit of the conveyor belt, and the normally open contact of the first relay KA1 and the coil of the second relay KA2 are connected in series in the first power supply circuit 14. The normally open contact of the second relay KA2 and the coil of the contactor KM are connected in series in the second power supply circuit 15, and the first normally open contact of the contactor KM and the coil of the solenoid valve 2 are connected in series in the third power supply circuit 16.

[0028] Understandably, since the coil of the first relay KA1 is connected in series with the starting circuit of the belt conveyor, and the normally open contact of the first relay KA1 and the coil of the second relay KA2 are connected in series in the first power supply circuit 14, when the belt conveyor starts, the coil of the first relay KA1 is energized, thereby causing the normally open contact of the first relay KA1 to close and conduct, thus energizing the coil of the second relay KA2; since the normally open contact of the second relay KA2 and the coil of the contactor KM are connected in series in the second power supply circuit 15, and the first normally open contact of the contactor KM and the coil of the solenoid valve 2 are connected in series in the third power supply circuit... On circuit 16, when the coil of the second relay KA2 is energized, the normally open contact of the second relay KA2 closes and conducts, thereby energizing the coil of the contactor KM and closing and conducting the first normally open contact of the contactor KM, thus energizing the coil of the solenoid valve 2. Since the spraying device is located close to the conveyor belt of the mine, and the flow paths of multiple solenoid valves 2 are respectively located between the water source outlet and the water inlet of multiple spraying devices, when the coil of the solenoid valve 2 is energized, the solenoid valve 2 can conduct the passage between the water source outlet and the water inlet of multiple spraying devices, thereby using the spraying device to achieve dust suppression in the mine.

[0029] Therefore, by utilizing the coordination of the first relay KA1, the second relay KA2, and the contactor KM in control circuit 1, the automatic operation of each spraying device can be achieved at the same time as the belt conveyor starts, thereby avoiding manual switching operation of each spraying device. This not only effectively improves production efficiency and reduces safety hazards, but also makes it less likely that some spraying devices will not be in operation after the belt conveyor starts, thus ensuring efficient and safe operation of the mine.

[0030] It should be noted that the spraying device is used to spray water supplied by the water source into the mine to achieve dust suppression. The specific type of spraying device can be set according to actual needs and there is no restriction on it. For example, the spraying device can be a nozzle assembly. The spraying device sprays high-pressure water supplied by the water source into a mist to suppress dust.

[0031] Solenoid valve 2 is used to open the passage between the water source outlet and the spray device inlet when energized. When the coil of solenoid valve 2 is energized, the flow path of solenoid valve 2 is open; when the coil of solenoid valve 2 is de-energized, the flow path of solenoid valve 2 is closed. The specific type of solenoid valve 2 can be set according to actual needs and is not limited thereto.

[0032] The number of spray devices and the number of solenoid valves 2 are in one-to-one correspondence. The number of spray devices and the number of solenoid valves 2 can be set according to actual needs and there is no limit to this. For example, the number of spray devices and the number of solenoid valves 2 are set to 10 sets respectively.

[0033] Control circuit 1 is used to realize the linkage between the belt conveyor and the spraying device.

[0034] The first relay KA1 is used for linkage between the belt conveyor and the second relay KA2. When the coil of the first relay KA1 is energized, its normally open contact is closed; when the coil of the first relay KA1 is de-energized, its normally open contact is open. The specific type of the first relay KA1 can be set according to actual needs and is not limited thereto. The coil of the first relay KA1 can be arranged in the PLC control cabinet of the belt conveyor. When the belt conveyor starts running, the coil of the first relay KA1 is energized under the control of the PLC control cabinet.

[0035] The second relay KA2 is used for linkage between the first relay KA1 and the contactor KM. When the coil of the second relay KA2 is energized, the normally open contact of the second relay KA2 is closed; when the coil of the second relay KA2 is de-energized, the normally open contact of the second relay KA2 is open. The specific type of the second relay KA2 can be set according to actual needs and is not limited thereto.

[0036] Contactor KM is used for linkage between the second relay KA2 and solenoid valve 2. When the coil of contactor KM is energized, the first normally open contact of contactor KM is closed; when the coil of contactor KM is de-energized, the first normally open contact of contactor KM is open. The specific type of contactor KM can be set according to actual needs and is not limited thereto.

[0037] like Figure 1 As shown, in some embodiments, the control circuit 1 further includes: a start switch SA and a third relay KA3, the coil of the third relay KA3 and the start switch SA are connected in series in the fourth power supply circuit 17, and the first normally open contact of the third relay KA3 is connected in series with the coil of the contactor KM, and the first normally open contact of the third relay KA3 and the normally open contact of the second relay KA2 are connected in parallel.

[0038] Understandably, since the coil of the third relay KA3 and the start switch SA are connected in series in the fourth power supply circuit 17, and the first normally open contact of the third relay KA3 is connected in series with the coil of the contactor KM, while the first normally open contact of the third relay KA3 and the normally open contact of the second relay KA2 are connected in parallel, when the start switch SA is turned on, the coil of the third relay KA3 is energized, thereby causing the first normally open contact of the third relay KA3 to close and conduct, thus energizing the coil of the contactor KM. Therefore, through the cooperation of the start switch SA and the third relay KA3, the spray device can be manually started, making the system safer and more flexible to use.

[0039] It should be noted that the start switch SA is used to manually turn on the spray device. The specific type of start switch SA can be set according to actual needs, and there are no restrictions on it.

[0040] The third relay KA3 is used for the linkage between the start switch SA and the contactor KM. When the coil of the third relay KA3 is energized, the first normally open contact of the third relay KA3 is closed; when the coil of the third relay KA3 is de-energized, the first normally open contact of the third relay KA3 is open. The specific type of the third relay KA3 can be set according to actual needs and is not limited thereto.

[0041] like Figure 1 As shown, in some embodiments, the second normally open contact of the third relay KA3 is connected in series with the coil of the third relay KA3, and the second normally open contact of the third relay KA3 is connected in parallel with the start switch SA.

[0042] Understandably, because the second normally open contact of the third relay KA3 is connected in series with the coil of the third relay KA3, and the second normally open contact of the third relay KA3 is connected in parallel with the start switch SA, when the coil of the third relay KA3 is energized, the second normally open contact of the third relay KA3 closes and conducts, thereby achieving self-locking of the third relay KA3. Even after the start switch SA is opened, the coil of the third relay KA3 can still be continuously energized, thus ensuring the stable operation of the spraying device.

[0043] It should be noted that when the coil of the third relay KA3 is energized, the second normally open contact of the third relay KA3 is closed; when the coil of the third relay KA3 is de-energized, the second normally open contact of the third relay KA3 is open.

[0044] like Figure 1 As shown, in some embodiments, the control circuit 1 further includes a stop switch SB, which is connected in series in the fourth power supply circuit 17.

[0045] Understandably, since the stop switch SB is connected in series in the fourth power supply circuit 17, when the stop switch SB is open, the fourth power supply circuit 17 is disconnected, thereby de-energizing the coil of the third relay KA3 and shutting down the spray device. Therefore, the setting of the stop switch SB makes the manual operation of the spray device more flexible and convenient.

[0046] It should be noted that the stop switch SB is used to manually shut off the spray device, and the specific type of the start switch SA can be set according to actual needs, without any restrictions.

[0047] like Figure 1As shown, in some embodiments, the control circuit 1 further includes a changeover switch 11, wherein a first switch 111 of the changeover switch 11 is connected in series in the first power supply circuit 14, and a second switch 112 of the changeover switch 11 is connected in series in the fourth power supply circuit 17. The first switch 111 and the second switch 112 of the changeover switch 11 are not simultaneously turned on.

[0048] Understandably, because the first switch 111 of the changeover switch 11 is connected in series in the first power supply circuit 14, the first switch 111 of the changeover switch 11 can control the energization and de-energization of the coil of the second relay KA2; and because the second switch 112 of the changeover switch 11 is connected in series in the fourth power supply circuit 17, the second switch 112 of the changeover switch 11 can control the energization and de-energization of the coil of the third relay KA3. Therefore, by combining the fact that the first switch 111 and the second switch 112 of the changeover switch 11 are not simultaneously activated, the spraying device can use the changeover switch 11 to switch between automatic start / stop and manual start / stop, thus making the system safer and more flexible to use.

[0049] It should be noted that the selector switch 11 is used to switch between the automatic start / stop state and the manual start / stop state of the spray device. The specific type of selector switch 11 can be set according to actual needs and there are no restrictions on it.

[0050] Specifically, when the first switch 111 of the changeover switch 11 is turned on, the second switch 112 of the changeover switch 11 is turned off; when the second switch 112 of the changeover switch 11 is turned on, the first switch 111 of the changeover switch 11 is turned off. Furthermore, the first switch 111 and the second switch 112 of the changeover switch 11 can be turned off simultaneously.

[0051] like Figure 1 As shown, in some embodiments, the first power supply circuit 14, the second power supply circuit 15, and the fourth power supply circuit 17 are connected in parallel.

[0052] It is understandable that since the first power supply circuit 14, the second power supply circuit 15 and the fourth power supply circuit 17 are connected in parallel, the second relay KA2, the third relay KA3 and other devices use the same input voltage, which makes the arrangement of the control circuit 1 simpler and more convenient.

[0053] It should be noted that the first power supply circuit 14, the second power supply circuit 15 and the fourth power supply circuit 17 can each use a 36V input voltage.

[0054] like Figure 1 As shown, in some embodiments, the control circuit 1 further includes: a running indicator light 12, the running indicator light 12 and the second normally open contact of the contactor KM are connected in series on the fifth power supply circuit 18, and the fifth power supply circuit 18 and the second power supply circuit 15 are connected in parallel.

[0055] It is understandable that since the operation indicator light 12 and the second normally open contact of the contactor KM are connected in series in the fifth power supply circuit 18, when the coil of the contactor KM is energized, the second normally open contact of the contactor KM closes and conducts, thereby energizing and illuminating the operation indicator light 12, and then using the operation indicator light 12 to illuminate to indicate the operation of the spraying device.

[0056] Since the fifth power supply circuit 18 and the second power supply circuit 15 are connected in parallel, the running indicator light 12, contactor KM and other devices use the same input voltage, which makes the arrangement of the control circuit 1 simpler and more convenient.

[0057] It should be noted that the operation indicator light 12 is used to emit an operation indication light when the spraying device is running. The specific type of the operation indicator light 12 can be set according to actual needs, and there are no restrictions on it.

[0058] like Figure 1 As shown, in some embodiments, the control circuit 1 further includes a stop indicator light 13, the stop indicator light 13 and the normally closed contact of the contactor KM are connected in series on the sixth power supply circuit 19, and the sixth power supply circuit 19 and the second power supply circuit 15 are connected in parallel.

[0059] It is understandable that since the stop indicator light 13 and the normally closed contact of the contactor KM are connected in series in the sixth power supply circuit 19, when the coil of the contactor KM is de-energized, the normally closed contact of the contactor KM closes and conducts, thereby energizing the stop indicator light 13 and using the stop indicator light 13 to indicate the stop of the spraying device.

[0060] Since the sixth power supply circuit 19 and the second power supply circuit 15 are connected in parallel, the stop indicator light 13, contactor KM and other devices use the same input voltage, which makes the arrangement of the control circuit 1 simpler and more convenient.

[0061] It should be noted that the stop indicator light 13 is used to emit a stop indication light when the spraying device is running. The specific type of the stop indicator light 13 can be set according to actual needs and there are no restrictions on it.

[0062] In some embodiments, multiple spray devices are evenly distributed along the length of the mine shaft.

[0063] Understandably, because multiple spray devices are evenly distributed along the length of the mine, the mine can achieve uniform spraying by using multiple spray devices, thereby effectively improving the dust suppression effect in the mine.

[0064] In some embodiments, the mine shaft is inclined along a preset slope.

[0065] Understandably, because the mine shaft is set up at a preset slope, multiple spray devices can be used in the inclined shaft for dust suppression operations, while ensuring high efficiency and safety.

[0066] It should be noted that the preset slope can be 18°.

[0067] The system in this embodiment can effectively reduce the concentration of coal dust in mines, beautify the mine environment, reduce the labor intensity of personnel, eliminate safety hazards when personnel operate the spraying device, improve work efficiency, and create economic and safety benefits for enterprises, and has a very good prospect for promotion.

[0068] In the description of this disclosure, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0069] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of preferred embodiments of this disclosure includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.

[0070] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0071] Although embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A mine automatic sprinkler system, characterized in that, include: Multiple spray devices, multiple solenoid valves, and control circuits; The spraying device is located near the conveyor belt of the mine, and the flow paths of the multiple solenoid valves are respectively located between the water source outlet and the water inlet of the multiple spraying devices. The control circuit includes: a first relay, a second relay, and a contactor; The coil of the first relay is connected in series with the starting circuit of the belt conveyor, and the normally open contact of the first relay and the coil of the second relay are connected in series in the first power supply circuit; The normally open contact of the second relay and the coil of the contactor are connected in series in the second power supply circuit, and the first normally open contact of the contactor and the coil of the solenoid valve are connected in series in the third power supply circuit.

2. The automatic mine dousing spray system of claim 1, wherein, The control circuit also includes: Turn on the switch; The third relay, the coil of which is connected in series with the start switch in the fourth power supply circuit, and the first normally open contact of which is connected in series with the coil of the contactor, and the first normally open contact of which is connected in parallel with the normally open contact of the second relay.

3. The automatic mine dousing spray system of claim 2, wherein, The second normally open contact of the third relay is connected in series with the coil of the third relay, and the second normally open contact of the third relay is connected in parallel with the start switch.

4. The automatic mine dousing spray system of claim 3, wherein, The control circuit also includes: A stop switch is connected in series in the fourth power supply circuit.

5. The automatic mine dousing spray system of claim 2, wherein, The control circuit also includes: A changeover switch, wherein the first switch of the changeover switch is connected in series in the first power supply circuit, and the second switch of the changeover switch is connected in series in the fourth power supply circuit; In this configuration, the first and second switches of the changeover switch are not simultaneously activated.

6. The automatic mine dousing spray system of claim 2, wherein, The first power supply circuit, the second power supply circuit, and the fourth power supply circuit are connected in parallel.

7. The automatic mine dousing spray system of claim 1, wherein, The control circuit also includes: The operation indicator light and the second normally open contact of the contactor are connected in series in the fifth power supply circuit, and the fifth power supply circuit and the second power supply circuit are connected in parallel.

8. The automatic mine dousing spray system of claim 1, wherein, The control circuit also includes: A stop indicator light is connected in series with the normally closed contact of the contactor in the sixth power supply circuit, and the sixth power supply circuit is connected in parallel with the second power supply circuit.

9. The automatic mine watering spray system of claim 1 wherein, Multiple spray devices are evenly distributed along the length of the mine.

10. The automatic mine dousing spray system of claim 1, wherein, The mine shaft is inclined along a preset slope.

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