Distributed coal mine spraying equipment

Abstract

The utility model discloses distributed coal mine spraying equipment which is characterized in that a plurality of spraying nozzles are arranged on a spraying vault, two water openings are symmetrically formed in the bottom of the spraying vault, the water openings are connected with a front water conveying pipe and a rear water conveying pipe on the two sides of the bottom of the spraying vault respectively, and a spraying controller is arranged on each section of water conveying pipe; the starting point of the water conveying pipe is connected with the spraying reservoir, the spraying controller is in signal connection with the spraying nozzles and the control terminal, the control terminal is arranged outside a mine hole, the spraying controller is powered by the belt generator, and the belt generator is hung between two layers of belts of the underground conveying belt. Local dust spraying is controlled through the spraying controllers arranged in a distributed mode, the effect is more accurate, the overall spraying effect is not affected when local failure or detection errors occur, the overall performance of the overall system is not affected by signal delay or loss, power is supplied to the spraying controllers through the belt generator, an electric power system does not need to be laid again, and the cost is reduced. The scheme is simple and cost is low.

Description

Technical Field

[0001] This application relates to the technical field of mine equipment, and particularly to a distributed coal mine spraying device. Background Art

[0002] During the process of coal mining and transportation deep in the mine tunnel, dust pollution is a long-standing and serious problem. To effectively reduce the impact of dust on miners' health and the production environment, spraying devices are widely used in the mine tunnel. Most of these devices are fixed or mobile, spraying high-pressure water mist or dust suppressant solution on the coal surface and transportation paths to achieve the purpose of suppressing dust from rising. However, most traditional mine tunnel spraying devices rely on manual operation or simple timing control, lacking the ability to respond to environmental changes in real time, resulting in unstable spraying effects and resource waste.

[0003] With the progress of information technology, the mine tunnel coal mine spraying devices have also started to develop towards intelligence and automation. By integrating sensor networks, wireless communication technology, and intelligent control algorithms, the spraying devices in the mine tunnel can real-time monitor environmental parameters in the mine tunnel, such as dust concentration, air humidity, wind speed, and the position and speed of transportation vehicles, etc. Based on these real-time data, the device can automatically adjust the spraying strategy, such as changing the spraying amount, adjusting the spraying angle, or starting / stopping spraying, to ensure suppressing dust in the best way at the best time. In addition, the introduction of information technology also makes remote monitoring and fault diagnosis possible, improving the maintenance efficiency and operation reliability of the device.

[0004] Although significant progress has been made in information technology in mine tunnel coal mine spraying devices, the current information-based devices still face some challenges. First, due to the special nature of the mine tunnel environment, such as signal attenuation, electromagnetic interference, etc., there are problems of delay or loss in real-time data feedback of the device, affecting the timeliness and accuracy of spraying control. Second, the complex environment in the mine tunnel makes the device power supply scheme complex, and the cost of supplying power to all distributed devices is high. Summary of the Utility Model

[0005] The embodiments of this application provide a distributed coal mine spraying device to solve the problems in the prior art that there are signal delays or losses in the real-time data feedback of mine tunnel coal mine spraying devices, affecting the timeliness and accuracy of spraying control, and the complex environment in the mine tunnel makes the device power supply scheme complex, and the cost of supplying power to all distributed devices is high.

[0006] On the one hand, the embodiments of this application provide a distributed coal mine spraying device, including:

[0007] Spray arch roof, on which there are multiple spray nozzles. There are two water inlets symmetrically arranged at the bottom of the spray arch roof. A lifting platform is arranged below the water inlets. The spray arch roof is supported inside the mine tunnel through the lifting platform. The water inlets are respectively connected to the front and rear water pipes on both sides of the bottom of the spray arch roof. The water pipes are supported inside the mine tunnel through the lifting platform. Each section of the water pipe is provided with a spray controller, and the spray controller is powered by a belt generator, and the belt generator is hung between the two layers of belts of the underground conveyor belt;

[0008] The end of the water pipe is closed, and the starting point of the water pipe is arranged outside the mine tunnel. The starting point of the water pipe is connected to a spray water storage pool. The spray controller is internally provided with an electric ball valve, a memory, a sensor group and a communication unit;

[0009] The spray controller is signal-connected to the spray nozzles and the control terminal, and the control terminal is arranged outside the mine tunnel;

[0010] The belt generator includes a generator and a storage battery. The roller of the generator is hung below the upper belt of the conveyor belt. The generator is driven by the friction of the conveyor belt to drive the roller to generate electricity. After the generator generates electricity, it is first stored by the storage battery, and the spray controller is directly powered by the storage battery.

[0011] In a possible implementation manner, the spray nozzles are provided with multiple gears at the spray ports, and the gears of the spray ports control the fogginess of the spray, and the gears of the spray ports are signal-controlled by the spray controller.

[0012] In a possible implementation manner, the sensor group includes a gas sensor, a dust concentration sensor, a thermoluminescence control sensor and a temperature sensor. The sensor group is provided with a gas threshold, a dust threshold and a temperature threshold through the memory. The spray controller controls the gears and the switches of the spray ports through the gas threshold, the dust threshold and the temperature threshold. The spray controller controls the switch of the spray port according to the signal of the thermoluminescence control sensor.

[0013] In a possible implementation manner, the memory is used to store the gas threshold, the dust threshold and the temperature threshold.

[0014] In a possible implementation manner, the control terminal is used to control and modify the gas threshold, the dust threshold and the temperature threshold stored in the memory in the spray controller.

[0015] In a possible implementation manner, a filtering unit is arranged between the water pipe and the spray water storage pool.

[0016] A distributed coal mine spray device in the present application has the following advantages:

[0017] (1) By controlling the local dust spraying separately through distributed spray controllers, the effect is more precise. When a local failure or detection error occurs, it does not affect the overall spraying effect, and signal delay or loss does not affect the overall performance of the entire system.

[0018] (2) Power the spray controller through a belt generator, without the need to re-lay the power system. The solution is simple and the cost is low. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Schematic diagram of signal transmission of a distributed coal mine spraying device provided by an embodiment of the present application;

[0021] Figure 2 Schematic vertical sectional view of the spraying arch roof of a distributed coal mine spraying device provided by an embodiment of the present application;

[0022] Figure 3 Schematic horizontal sectional view of the spraying arch roof of a distributed coal mine spraying device provided by an embodiment of the present application;

[0023] Figure 4 Schematic vertical sectional view of the spray controller and water delivery pipe of a distributed coal mine spraying device provided by an embodiment of the present application.

[0024] Explanation of the reference numerals in the drawings: 1. Spraying arch roof; 11. Spray nozzle; 12. Water inlet; 2. Lifting platform; 3. Water delivery pipe; 4. Spray controller; 41. Electric ball valve; 42. Memory; 43. Sensor group; 44. Communication unit; 45. Control terminal; 5. Mine tunnel; 6. Belt generator. Detailed Embodiments

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0026] Figure 1Schematic diagram of signal transmission of a distributed coal mine spraying device provided by an embodiment of the present application; An embodiment of the present application provides a distributed coal mine spraying device, including:

[0027] A spraying vault 1, on which a plurality of spray nozzles 11 are arranged. Two water inlets 12 are symmetrically arranged at the bottom of the spraying vault 1. A lifting platform 2 is arranged below the water inlets 12. The spraying vault 1 is supported inside the mine tunnel 5 through the lifting platform 2. The water inlets 12 are respectively connected to the front and rear water pipes 3 on both sides of the bottom of the spraying vault 1. The water pipes 3 are supported inside the mine tunnel 5 through the lifting platform 2. A spraying controller 4 is arranged on each section of the water pipe 3. The spraying controller 4 is powered by a belt generator 6, and the belt generator 6 is hung between two layers of belts of the underground transmission belt;

[0028] The end of the water pipe 3 is closed, and the starting point of the water pipe 3 is arranged outside the mine tunnel 5. The starting point of the water pipe 3 is connected to a spraying water storage tank 31. An electric ball valve 41, a memory 42, a sensor group 43 and a communication unit 44 are arranged in the spraying controller 4;

[0029] The spraying controller 4 is signal-connected to the spray nozzles 11 and a control terminal 45, and the control terminal 45 is arranged outside the mine tunnel 5;

[0030] The belt generator 6 includes a generator and a storage battery. The roller of the generator is hung below the upper belt of the transmission belt. The generator is driven to generate electricity by the friction of the transmission belt on the roller. After the generator generates electricity, it is first stored in the storage battery, and the spraying controller 4 is directly powered by the storage battery.

[0031] Exemplarily, such as Figure 1 、 2As shown in Figures 3 and 4, the spray vault 1 and the water delivery pipes 3 are arranged in an S-shaped staggered pattern within the mine tunnel 5. Therefore, the spray controllers 4 are also arranged in a staggered pattern within the mine tunnel 5 to avoid uneven stress on the walls of the mine tunnel 5. The spray vault 1, the spray controllers 4, and the water delivery pipes 3 are all supported at the top of the mine tunnel 5 by a lifting platform 2, which does not affect normal construction operations. One end of the water delivery pipe 3 is connected to a spray water storage tank 31. The spray nozzles 11 of the spray vault 1 are controlled by the spray controller 4 to open, close, and adjust the water mist for dust suppression effects within the mine tunnel 5. The specific control is achieved through thresholds preset within the spray controller 4. The communication connections between the electric ball valve 41, the memory 42, the sensor group 43, the control terminal 45, and the spray nozzles 11 within the spray controller 4 are achieved through a communication unit 44. The spray controllers 4, the spray vault 1, and the spray nozzles 11 underground are arranged along the conveyor belt to suppress dust on the conveyor belt. The spray controller 4 is powered by a belt generator 6 hung below the upper belt of the conveyor belt. When the conveyor belt operates and rotates, the bottom of the upper belt of the conveyor belt drives the rollers of the generator of the belt generator 6 to rotate through friction. The belt generator 6 generates electrical energy through the rotation of the rollers to supply power to the spray controller 4. The belt generator 6 includes two parts: a generator and a storage battery. The generator is driven by the conveyor belt to generate electricity, which is then stored in the storage battery, and then the storage battery supplies power to the spray controller 4 to avoid the shutdown of the spray controller 4 caused by the shutdown of the conveyor belt.

[0032] In a possible embodiment, the spray nozzles 11 of the spray vault 1 are provided with multiple gears at the nozzle openings. The gear positions of the nozzle openings control the fog density of the spray, and the gear positions of the nozzle openings are controlled by signals from the spray controller 4.

[0033] Exemplarily, the spray nozzles 11 adjust the gear positions of the nozzle openings according to the size and particle size of the dust to accurately control the water mist for dust suppression.

[0034] In a possible embodiment, the sensor group 43 includes a gas sensor, a dust concentration sensor, a thermoluminescence control sensor, and a temperature sensor. The sensor group 43 is set with gas thresholds, dust thresholds, and temperature thresholds through the memory 42. The spray controller 4 controls the gear positions and the opening and closing of the nozzle openings based on the gas thresholds, dust thresholds, and temperature thresholds. The spray controller 4 controls the opening and closing of the nozzle openings according to the signals from the thermoluminescence control sensor.

[0035] Exemplarily, the gas sensor, the dust concentration sensor, and the temperature sensor control the nozzle gear of the spray nozzle 11 through preset multi-level gas thresholds, dust thresholds, and temperature thresholds. Among them, the temperature sensor also ensures the normal operation of the conveyor belt through temperature sensing. When the conveyor belt overheats or catches fire, a signal is transmitted to the spray controller 4 through the temperature sensor. At this time, the spray controller 4 controls the spray nozzle 11 to open for fire extinguishing and cooling. When the pyroelectric light control sensor detects that a worker passes by, the nozzle can also be activated for temporary dust reduction operations.

[0036] In a possible embodiment, the memory 42 is used to store the gas threshold, the dust threshold, and the temperature threshold, and the control terminal 45 is used to control and modify the gas threshold, the dust threshold, and the temperature threshold stored in the memory 42 in the spray controller 4.

[0037] Exemplarily, through the control terminal 45, the specific numerical ranges of the gas threshold, the dust threshold, and the temperature threshold can be remotely modified outside the mine 5, facilitating the staff to adjust the dust reduction strategy in a timely manner according to the actual situation.

[0038] In a possible embodiment, a filtering unit is provided between the water delivery pipe 3 and the spray reservoir 31.

[0039] Although the preferred embodiments of the present application have been described, those skilled in the art can make additional changes and modifications once they know the basic creative concepts. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications falling within the scope of the present application.

[0040] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims

1. A distributed coal mine spraying device, characterized in that, Including: A spray arch (1), on which a plurality of spray nozzles (11) are arranged. Two water inlets (12) are symmetrically arranged at the bottom of the spray arch (1). A lifting platform (2) is arranged below the water inlets (12). The spray arch (1) is supported inside the mine tunnel (5) through the lifting platform (2). The water inlets (12) are respectively connected to the front and rear water pipes (3) on both sides of the bottom of the spray arch (1). The water pipes (3) are supported inside the mine tunnel (5) through the lifting platform (2). A spray controller (4) is arranged on each section of the water pipe (3). The spray controller (4) is powered by a belt generator (6), and the belt generator (6) is hung between two layers of belts of the underground conveyor belt; The end of the water pipe (3) is closed. The starting point of the water pipe (3) is arranged outside the mine tunnel (5). The starting point of the water pipe (3) is connected to a spray water storage tank (31). An electric ball valve (41), a memory (42), a sensor group (43) and a communication unit (44) are arranged in the spray controller (4); The spray controller (4) is signal-connected to the spray nozzles (11) and a control terminal (45), and the control terminal (45) is arranged outside the mine tunnel (5); The belt generator (6) includes a generator and a storage battery. The roller of the generator is hung below the upper belt of the conveyor belt. The generator is driven to generate electricity by the friction of the conveyor belt. After the generator generates electricity, it is first stored in the storage battery, and the spray controller (4) is directly powered by the storage battery.

2. The distributed coal mine spraying device according to claim 1, characterized in that, The spray nozzles (11) are provided with multiple gears at the spray ports. The gears of the spray ports control the fog degree of the spray, and the gears of the spray ports are signal-controlled by the spray controller (4).

3. The distributed coal mine spraying device according to claim 2, characterized in that, The sensor group (43) includes a gas sensor, a dust concentration sensor, a thermoluminescence control sensor and a temperature sensor. The sensor group (43) is provided with a gas threshold, a dust threshold and a temperature threshold through the memory (42). The spray controller (4) controls the gears and the switches of the spray ports through the gas threshold, the dust threshold and the temperature threshold. The spray controller (4) controls the switches of the spray ports according to the signals of the thermoluminescence control sensors.

4. The distributed coal mine spraying device according to claim 3, characterized in that, The memory (42) is used to store the gas threshold, the dust threshold and the temperature threshold.

5. The distributed coal mine spraying device according to claim 4, characterized in that, The control terminal (45) is used to control and modify the gas threshold, the dust threshold and the temperature threshold stored in the memory (42) in the spray controller (4).

6. The distributed coal mine spraying device according to claim 1, characterized in that, A filtering unit is arranged between the water pipe (3) and the spray water storage tank (31).

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