Full-section intelligent spraying, dust falling and cooling system and method

Abstract

According to the system, a spray cooling and dust falling execution unit is installed at the tail of a supporting platform, and the spray cooling and dust falling execution unit comprises a water tank, a cooling device, a high-pressure pump set and a spray pipe network; the cooling device is connected with the water tank; the water inlet end of the high-pressure pump set is connected with the water outlet of the water tank; the spraying pipe network comprises a spraying support, nozzles and a water supply pipe network. The outer contour of the spraying support is in an arc shape, and the multiple nozzles are installed on the spraying support at intervals in the circumferential direction. The water inlet end of the water supply pipe network is connected with the water outlet end of the high-pressure pump set, and the multiple water outlet ends of the water supply pipe network are connected with the multiple nozzles respectively. The first intelligent sensing unit is installed on the supporting platform. The energy supply unit is installed on the supporting platform. The method comprises the following steps: enabling the full-section intelligent spraying, dust-reducing and cooling system to autonomously run in an operation roadway, and autonomously carrying out spraying, cooling and dust-reducing operation according to an operation environment condition. According to the system and the method, full-section coverage can be performed on the roadway, and spraying, dust falling and cooling operations can be synchronously realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of intelligent dust and temperature reduction, and specifically relates to a full-section intelligent spray dust and temperature reduction system and method. Background Art

[0002] During the deep mining process of coal mines, the problems of high-temperature environment and high-concentration dust pollution faced are becoming increasingly serious, posing great challenges to the health and safety production of miners. The high-temperature environment not only reduces the working efficiency of workers, but may also induce safety accidents such as gas explosions and coal spontaneous combustion. High-concentration dust may cause pneumoconiosis of workers and damage to mechanical equipment, and even trigger mine fires. At present, the mine spray cooling and dust reduction technology is the most commonly used treatment method. However, most of the existing technologies use fixed spray devices or manually adjustable spray trolleys, which have many problems such as uneven spray coverage, poor equipment flexibility, cumbersome manual operation, and high maintenance costs, making it difficult to meet the high-efficiency treatment requirements of the complex environment in deep mines.

[0003] To solve the above problems, intelligent spray systems have gradually become a research hotspot in recent years. At present, some systems have combined sensor monitoring technology and automatic control technology, and can automatically adjust the spray volume and spraying angle according to the dust concentration and temperature changes in the mine, thereby improving the dust and temperature reduction effects. However, the existing intelligent spray devices still have limitations such as complex installation processes, high costs, and difficulty in covering the entire section. Especially in complex mine roadways, the problem of spray blind spots is still serious. Therefore, there is an urgent need to provide a new type of intelligent spray dust and temperature reduction system that can cover the entire section, be intelligently regulated, and have low installation and maintenance costs to meet the actual needs of different mines. Summary of the Invention

[0004] Aiming at the problems existing in the above-mentioned prior art, the present invention provides a full-section intelligent spray dust and temperature reduction system and method. The system has a simple structure, low manufacturing cost, and can achieve full-section coverage of the roadway. It can perform synchronous spray dust and temperature reduction operations on the full section of the roadway, effectively solving the problems of incomplete coverage, untimely response, and cumbersome manual adjustment of the spray system in the existing high-temperature and high-dust working environment of coal mines, and can meet the high-efficiency treatment requirements of the complex environment in deep mines. The method has a simple implementation process and high intelligence level. It can realize the coordinated operation of full-section spraying, efficient cooling and dust reduction, and can achieve on-demand, directional, and efficient spray dust and temperature reduction control.

[0005] To achieve the above object, the present invention provides a full-section intelligent spray dust and temperature reduction system, including a support platform, a spray cooling and dust reduction execution unit, a first intelligent sensing unit, an energy supply unit, and an intelligent control unit;

[0006] The spray cooling and dust suppression execution unit is installed at the tail of the support platform. The spray cooling and dust suppression execution unit includes a water tank, a cooling device, a high-pressure pump group, and a spray pipe network. The cooling device is connected to the water tank and is used to cool the liquid in the water tank. The water inlet end of the high-pressure pump group is connected to the water outlet of the water tank. The spray pipe network includes a spray bracket, nozzles, and a water supply pipe network. The outer contour of the spray bracket is arc-shaped, and multiple nozzles are installed on the spray bracket at circumferential intervals. The water inlet end of the water supply pipe network is connected to the water outlet end of the high-pressure pump group, and its multiple water outlet ends are respectively connected to multiple nozzles.

[0007] The first intelligent sensing unit is installed on the support platform and is used to sense the temperature, humidity, and dust concentration data in the environment.

[0008] The energy supply unit is installed on the support platform and is used to supply energy to each component.

[0009] The intelligent control unit is installed on the support platform and is respectively connected to the first intelligent sensing unit, the spray cooling and dust suppression execution unit, and the energy supply unit.

[0010] In the present invention, through the setting of the cooling device, the liquid in the water tank can be cooled, so that the temperature of the spray can be reduced. In this way, while spraying to suppress dust, the temperature in the environment can be synchronously reduced, achieving the operation effect of synchronously suppressing dust and cooling. The outer contour of the spray bracket is arc-shaped, and then multiple nozzles are installed on the spray bracket at circumferential intervals. The arc-shaped contour of the spray bracket can be used to support multiple nozzles to a position closer to the roadway roof and sidewalls. Thus, when multiple nozzles perform spraying operations, multiple nozzles can be used to spray the entire operation of the roadway synchronously, that is, the full-section spraying operation of the roadway is realized. Through the setting of the first intelligent sensing unit, it is convenient to collect the temperature, humidity, and dust concentration data at the operation position in real time. Furthermore, it is convenient to dynamically adjust the number and numbers of the nozzles that need to perform spraying operations according to the temperature, humidity, and dust concentration data of the operation environment. At the same time, it is also convenient to dynamically adjust the spray angle and the size of the spray volume to improve the effect and efficiency of spray dust suppression and cooling. Through the setting of the intelligent control unit, the intelligent control of the spray dust suppression and cooling operation can be realized.

[0011] This system has a simple structure, low manufacturing cost, and can achieve full-section coverage of the roadway. It can perform synchronous spray dust suppression and cooling operations on the full section of the roadway, and can effectively solve problems such as incomplete coverage, untimely response, and cumbersome manual adjustment of the spray system in the existing high-temperature and high-dust operation environment of mines, meeting the high-efficiency treatment requirements of the complex environment in deep mines.

[0012] Furthermore, in order to facilitate the slidable installation of multiple nozzles around the spray support, so that the spray support can support multiple nozzles in an arc shape around, thus better meeting the spray coverage requirements of the entire roadway cross-section. At the same time, in order to facilitate the convenient position change of the nozzles in the annular groove on the spray support to adapt to different working conditions, an annular groove is provided on the outer circular surface of the spray support, and a plurality of communication holes are circumferentially spaced on its inner circular surface; the nozzle is an electric universal nozzle, its water inlet end has a universal ball joint, and the universal ball joint is slidably installed in the annular groove; the water supply pipe network includes a main drainage pipeline, auxiliary drainage pipelines, branch drainage pipelines, solenoid valves and connecting hoses; the water inlet end of the main drainage pipeline is connected to the water outlet end of the high-pressure pump group, and the water inlet ends of multiple auxiliary drainage pipelines are connected to the water outlet end of the main drainage pipeline through pipeline connectors; the branch drainage pipeline is in a Y shape, which has one water inlet end and two water outlet ends, the water inlet ends of multiple branch drainage pipelines are respectively connected to the water outlet ends of multiple auxiliary drainage pipelines, the water inlet ends of multiple connecting hoses are respectively connected to the water outlet ends of multiple branch drainage pipelines through multiple solenoid valves, and its water outlet ends penetrate into the annular groove through multiple communication holes and are respectively connected to the universal ball joints of multiple nozzles. By arranging multiple branch drainage pipelines in a Y shape, it is convenient to supply water to two adjacent nozzles using one branch drainage pipeline, which can help simplify the structure of the water supply pipe network. At the same time, the resistance during the water supply process can be reduced through the Y-shaped water distribution supply method.

[0013] Further, in order to enable the full-section intelligent spray dust suppression and temperature reduction system to move flexibly in the working roadway and effectively adapt to the driving environment of the roadway, the support platform is a mobile support platform, which includes a carriage, a chassis installed at the bottom of the carriage, a driving motor installed at the bottom of the chassis, and two crawler mechanisms arranged on the outer sides of both ends of the carriage; the driving motor is connected to the intelligent control unit; the crawler mechanism includes a driving wheel, a tensioning wheel, a supporting wheel, and a crawler plate; the driving wheel and the tensioning wheel are respectively rotatably installed at both ends in the length direction of the chassis, and the driving wheel is connected to the driving motor; a plurality of supporting wheels are spaced between the driving wheel and the tensioning wheel and are rotatably connected to the middle section of the chassis; multiple crawler plates are sequentially connected to form a ring and are wound around and connected to the outside of the driving wheel, a plurality of supporting wheels, and the tensioning wheel. By installing two crawler mechanisms on the outer side of the carriage of the support platform and assembling a driving motor on the chassis of the support platform, the crawler mechanism can be used to drive the support platform to move in the roadway, forming a trolley-type mobile platform, which improves the flexibility of the system to walk and the adaptability to the roadway section. By adopting this trolley-type mobile platform and carrying an arc-shaped spray support structure and an intelligent spray execution module, combined with sensor real-time monitoring and intelligent control technology, the spray system can automatically adjust the spraying range and intensity according to the changes in the mine environment. At the same time, this combination innovatively integrates the annular groove-type slide rail and the spray support onto the support platform with a mobile function, avoiding the high-cost fixed installation in the roadway, greatly reducing the manual construction volume, improving the applicability and economy of the system, and providing a more intelligent, efficient, and low-cost solution for mine safety production.

[0014] As a preference, the high-pressure pump group includes a centrifugal pump, an electric motor, and a main solenoid valve; the electric motor is coaxially connected to the centrifugal pump; the main solenoid valve is connected to the water inlet end of the centrifugal pump and is used to control the on-off of the water inlet channel; in order to enable the system to have the off-line operation ability, and at the same time, in order to facilitate the charging operation of the battery pack, the energy supply unit includes a battery pack and a charging interface, the charging interface is arranged on the support platform and is connected to the battery pack and is used to connect to the power supply of the mine power supply system to charge the battery pack.

[0015] Further, in order to make the overall structure of the intelligent sensing unit 1 simpler and, at the same time, to effectively sense the temperature, humidity and dust concentration data in the environment, the intelligent sensing unit 1 includes a probe bracket, a temperature sensor, a humidity sensor and a dust concentration sensor. The lower end of the probe bracket is installed at the top of the front end of the water tank, and its upper end extends to the outside of the front end of the support platform; the temperature sensor, the humidity sensor and the dust concentration sensor are installed at intervals on the upper end of the probe bracket. Extending the probe bracket to the outside of the front end of the support platform can more effectively sense the temperature, humidity and dust concentration data in the working environment, and can avoid the adverse effects of the differences in temperature, humidity and dust concentration on the support platform on the temperature, humidity and dust concentration in the environment, ensuring the measurement accuracy.

[0016] As a preference, the cooling device includes a spiral copper tube, a refrigeration component and a refrigerant storage tank;

[0017] The spiral copper tube extends in a spiral shape and is arranged in the inner cavity of the water tank; the refrigeration component is installed at the upper end of the water tank and includes a compressor, a condenser and a throttle valve. The inlet of the compressor is connected to one end of the spiral copper tube, the inlet of the condenser is connected to the outlet of the compressor, the outlet of the throttle valve is connected to the other end of the spiral copper tube, the inlet of the refrigerant storage tank is connected to the outlet of the condenser through a connecting pipeline 1, and its outlet is connected to the inlet of the throttle valve through a connecting pipeline 2. This connection method can make the refrigerant circulate through the spiral copper tube, and through the combined action of the compressor, the condenser and the throttle valve, the refrigerant flowing into the spiral copper tube is in a low-temperature state, so that the liquid in the water tank can be cooled by heat exchange. In this way, it can cooperate with the spray pipe network to form a spray-heat exchange integrated fog-cooling coupling cooling effect, and further, while spraying and dust suppressing, the cooling operation can be realized more efficiently.

[0018] Further, to improve the intelligence level of the system, it further includes an intelligent sensing unit II. The intelligent sensing unit II includes a top ranging sensor, side ranging sensors, a water level sensor, a pressure gauge, and a radar detection module. The top ranging sensor is installed on one side of the top of the spray bracket, and two side ranging sensors are relatively installed on one side at both ends in the width direction of the spray bracket; the water level sensor is installed in the water tank for real-time acquisition of the liquid level signal inside the water tank; the pressure gauge is connected to the water outlet end of the centrifugal pump for real-time acquisition of the pressure signal of the water outlet channel; multiple radar detection modules are installed around the support platform for real-time acquisition of the surrounding obstacle signals; the intelligent sensing unit II is connected to the intelligent control unit. Through the settings of the top ranging sensor and the side ranging sensors, it is convenient to sense the distance data I from the top nozzle to the roadway roof and the distance data II from the side nozzle to the roadway sidewall in real time. Furthermore, the system can adaptively adjust the angles and spray amounts of each nozzle according to the changes in the height and width of the roadway, so as to effectively adapt to the heterogeneity of ventilation, heat damage, and dust distribution in different cross-sections and meet the operation requirements of "spraying on demand". Through the setting of the water level sensor, the liquid level height data in the water tank can be sensed in real time during the spraying operation. Furthermore, an alarm can be given in time when the liquid level height is lower than the set value to remind relevant personnel to perform the water replenishment operation. Through the setting of the pressure gauge, the pressure data of the centrifugal pump water outlet channel can be collected in real time during the operation of the high-pressure pump group. Furthermore, an alarm can be given in time when the pressure data is abnormal to provide relevant personnel with timely maintenance of the high-pressure pump group. Through the setting of multiple radar detection modules, it is convenient to realize the automatic positioning and path planning of the system, and enable the system to realize the functions of autonomous driving and autonomous obstacle avoidance during driving, thus significantly improving the flexibility and intelligence during movement.

[0019] Further, to facilitate wireless communication with the outside world and, at the same time, to give an alarm reminder in time in case of an abnormality, the intelligent control unit includes a controller, an alarm, and a wireless communication module; the alarm is installed on the water tank for performing alarm actions; the wireless communication module is installed on the water tank for establishing a wireless communication connection between the intelligent control unit and external devices; the controller is installed on the water tank and is respectively connected to the alarm and the radar detection module.

[0020] The present invention is based on a modular crawler mobile platform, which has a compact structure, strong mobility, good flexibility, and high intelligence. It is suitable for use in the narrow and complex terrain of mine roadways. The whole system can complete the closed-loop control process of "perception - decision - execution" without manual intervention, support long-term stable operation underground, and reduce the labor intensity and safety risks of operators. At the same time, by mounting an arc spray rack, angle-adjustable nozzles, and multi-parameter environmental sensors, the system can automatically adjust the spray mode and parameters according to the working conditions such as temperature and dust concentration in the roadway, realizing on-demand, directional, and efficient spray control. At the same time, the spray system adopts a multi-level branch pipe network design. Each branch is connected to an atomizing nozzle controlled by an independent solenoid valve. The nozzle is driven by a built-in servo motor and is clamped in a movable annular groove through a universal ball joint. This structure can not only achieve three-dimensional adjustment of the nozzle angle but also support movement along the track on the spray support. Combining with the temperature, humidity, dust concentration data, and distance data collected by the intelligent sensing unit, it can achieve precise control of the atomization direction, position, and flow rate. Compared with the existing fixed-angle spray equipment, the present invention can significantly improve the droplet coverage rate and spray efficiency, avoiding waste of resources. At the same time, the system has self-driving or collaborative movement functions, adapts to different roadway cross-sections and working rhythms, avoids repeated spraying and energy waste, significantly improves the utilization efficiency of the spray liquid, reduces water and energy consumption, and ensures the safety and comfort of operators. The overall structure of the system is flexibly installed, suitable for various mine roadway environments, with ideal temperature reduction and dust reduction effects and high intelligence level, having good prospects for popularization and application.

[0021] The present invention also provides a full-section intelligent spray dust reduction and temperature reduction method, which adopts a full-section intelligent spray dust reduction and temperature reduction system, including the following steps:

[0022] Step 1: Operation preparation;

[0023] Place the full-section intelligent spray dust reduction and temperature reduction system in the roadway to be operated and test various functions;

[0024] Step 2: Start the spray dust reduction and temperature reduction operation;

[0025] S21: The controller obtains the temperature data, humidity data, and dust concentration data in the current working environment through the temperature sensor, humidity sensor, and dust concentration sensor, obtains the distance data one from the top of the spray support to the roadway roof through the top ranging sensor, obtains the distance data two from the side of the spray support to the roadway sidewall through the side ranging sensor, obtains the surrounding obstacle situation through multiple radar detection modules, and selects the number and numbers of the nozzles to be started based on the temperature data, humidity data, and dust concentration data in the current working environment. Determine the spray volume and atomization direction of the selected nozzles based on the distance data one and distance data two, and plan the walking path based on the surrounding obstacle situation;

[0026] S22: The controller controls the driving motor to start working, so that the crawler mechanism drives the support platform to move along a preset path. The controller controls the main solenoid valve to open, controls the motor to drive the centrifugal pump to start working, controls the angle of the selected nozzle to rotate to the atomization direction, controls the solenoid valve corresponding to the selected nozzle to open. At the same time, the opening degree of the valve port of the opened solenoid valve is controlled to make the spray amount of the nozzle reach the required spray amount for full-section spray dust reduction operation;

[0027] At the same time, the real-time feedback temperature data is compared with the preset temperature threshold. When the temperature data is higher than the preset temperature threshold, the cooling device is controlled to start working to cool the water in the water tank, and the spray is used to reduce the ambient temperature until the temperature data is not higher than the preset temperature threshold, then the cooling device is controlled to stop working for full-section spray dust reduction and cooling operation; and the number and numbers of the nozzles to be started are adjusted according to the real-time feedback temperature data, humidity data and dust concentration data in the current working environment, and the spray amount and atomization direction of the nozzles to be started are adjusted according to the real-time feedback distance data one and distance data two;

[0028] At the same time, the travel path is dynamically adjusted according to the real-time feedback of the surrounding obstacle situation;

[0029] At the same time, the pressure data of the centrifugal pump water outlet channel is obtained through the pressure gauge, the liquid level height data in the water tank is obtained through the water level sensor, the pressure data is compared with the set pressure range, and the liquid level height data is compared with the set liquid level height threshold. And when the pressure data exceeds the predetermined pressure range or when the liquid level height data is lower than the set liquid level height threshold, it is judged that the current is in an abnormal working condition, and the alarm is controlled to perform an alarm action. At the same time, the driving motor is controlled to stop, the main solenoid valve is controlled to close, the motor is controlled to stop, and the solenoid valve is controlled to close until the abnormal working condition disappears, and then the previous working condition is restored.

[0030] Further, in order to utilize multiple full-section intelligent spray dust suppression and temperature reduction systems to simultaneously spray-cover the full section of the roadway and more efficiently achieve spray dust suppression and temperature reduction operations, in Step 2, when multiple full-section intelligent spray dust suppression and temperature reduction systems are arranged in the working roadway simultaneously, one full-section intelligent spray dust suppression and temperature reduction system is used as the main system, and the remaining multiple full-section intelligent spray dust suppression and temperature reduction systems are used as slave systems. The main system is connected to the multiple slave systems through wireless communication. When the main system and the multiple slave systems simultaneously perform spray dust suppression and temperature reduction operations, the multiple slave systems send temperature data, humidity data, and dust concentration data at their locations to the main system. The controller in the main system sends corresponding operation interval data to each slave system according to the temperature data, humidity data, and dust concentration data at the locations of the main system and the slave systems. Each slave system adjusts the spacing between adjacent two full-section intelligent spray dust suppression and temperature reduction systems according to the operation interval data, so as to adjust the spacing between multiple full-section intelligent spray dust suppression and temperature reduction systems in real time according to the temperature, humidity, and dust concentration changes in different areas of the roadway, so as to achieve coordinated and linked full-section spray dust suppression and temperature reduction coverage among multiple full-section intelligent spray dust suppression and temperature reduction systems. Through the intelligent linkage control among multiple systems, the controllers built in each system can perform information interaction through wireless communication, and then can automatically adjust the spacing between each other according to the differences in the local environment, realizing adaptive layout and regional coordinated operation. This linkage mechanism can dynamically plan the spray route and coverage range according to the changes in the roadway section shape and the intensity of heat damage, ensuring no blind area in the cooling and dust suppression coverage, thus meeting the actual needs of "full-section" intelligent spray operation underground.

[0031] This patent proposes a full-section intelligent spray dust suppression and temperature reduction method, aiming to achieve full-section spray coverage of the mine roadway and improve the dust suppression and temperature reduction efficiency. During the operation process, through the cooling effect of the cooling module and the coordinated action of high-pressure water mist, the dual-purpose dust suppression and temperature reduction operation of the mine environment is realized, significantly improving the operation efficiency and greatly enhancing the dust suppression and temperature reduction effect. Using this method can effectively reduce the blind area of spray operation, better adapt to the heterogeneity of ventilation, heat damage, and dust distribution in different sections, and realize the "spray-on-demand" operation. At the same time, by using the cooling function in the spray combined with the cooling module to form a "fog-cooling coupling", the cooling and temperature reduction intensity is enhanced and the thermal environment of the operation area is improved, which is beneficial to improving the comfort of the operators during the operation process. During the operation process, according to the temperature, humidity, and dust concentration data, the flow rate and angle of the spray are intelligently adjusted, and variable spray layout within the width and height of the vehicle can be realized, with extremely strong full-section coverage ability. Compared with the prior art, the present invention provides a full-section spray intelligent dust suppression and temperature reduction system that can operate independently and be intelligently adjusted in the complex mine environment, achieving multiple technological breakthroughs such as controllable spray direction, coordinated linkage of multiple systems, real-time environmental perception and response control.

[0032] The implementation process of this method is simple and has a high degree of intelligence. It can achieve the coordinated operation of full-section spraying, efficient temperature reduction and dust suppression, and can realize on-demand, directional, and efficient control of spraying for dust reduction and temperature reduction, effectively solving problems such as incomplete coverage of the spraying system, untimely response, and cumbersome manual adjustment in the existing high-temperature and high-dust working environment of mines. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic structural diagram of the spraying dust reduction and temperature reduction system in the present invention Figure 1 ;

[0034] Figure 2 is a schematic structural diagram of the spraying dust reduction and temperature reduction system in the present invention Figure 2 ;

[0035] Figure 3 is a schematic structural diagram of the spraying dust reduction and temperature reduction system in the present invention Figure 3 ;

[0036] Figure 4 is a schematic structural diagram of the spraying dust reduction and temperature reduction system in the present invention Figure 4 ;

[0037] Figure 5 is a schematic structural diagram of the spraying support in the present invention Figure 1 ;

[0038] Figure 6 is a schematic structural diagram of the spraying support in the present invention Figure 2 ;

[0039] Figure 7 is a schematic structural diagram of the nozzle in the present invention;

[0040] Figure 8 is a schematic block diagram of the electric control part in the present invention.

[0041] In the figure: 1. Support platform, 2. Spray cooling and dust suppression execution unit, 3. Intelligent sensing unit I, 4. Energy supply unit, 5. Intelligent control unit, 6. Water tank, 7. Cooling device, 8. High-pressure pump group, 9. Water outlet, 10. Spray support, 11. Nozzle, 12. Water supply network, 13. Main drainage pipeline, 14. Auxiliary drainage pipeline, 15. Branch drainage pipeline, 16. Connecting hose, 17. Solenoid valve, 18. Annular groove, 19. Communication hole, 20. Universal ball joint, 21. Carriage, 22. Chassis, 23. Crawler mechanism, 24. Driving wheel, 25. Tensioning wheel, 26. Idler wheel, 27. Crawler plate, 28. Centrifugal pump, 29. Electric motor, 30. Pressure gauge, 31. Total solenoid valve, 32. Battery pack, 33. Probe support, 34. Temperature sensor, 35. Humidity sensor, 36. Dust concentration sensor, 37. Spiral copper tube, 38. Refrigeration component, 39. Refrigerant storage tank, 40. Water inlet, 41. Water level sensor, 42. Top distance measuring sensor, 43. Side distance measuring sensor. Specific implementation mode

[0042] The present invention will be further described below with reference to the accompanying drawings.

[0043] As Figures 1 to 8 shown, the present invention provides a full-section intelligent spray dust suppression and cooling system, including a support platform 1, a spray cooling and dust suppression execution unit 2, an intelligent sensing unit I 3, an energy supply unit 4 and an intelligent control unit 5;

[0044] The spray cooling and dust suppression execution unit 2 is installed at the tail of the support platform 1. The spray cooling and dust suppression execution unit 2 includes a water tank 6, a cooling device 7, a high-pressure pump group 8 and a spray network. The cooling device 7 is connected to the water tank 6 and is used for cooling the liquid in the water tank 6. The water inlet end of the high-pressure pump group 8 is connected to the water outlet 9 of the water tank 6. The spray network includes a spray support 10, a nozzle 11 and a water supply network 12. The outer contour of the spray support 10 is arc-shaped, which can be adapted to the contour of the roadway section, so as to facilitate the full-section spray dust suppression and cooling operation. A plurality of nozzles 11 are installed on the spray support 10 at intervals in the circumferential direction. The water inlet end of the water supply network 12 is connected to the water outlet end of the high-pressure pump group 8, and its plurality of water outlet ends are respectively connected to a plurality of nozzles 11;

[0045] The intelligent sensing unit I 3 is installed on the support platform 1 and is used for sensing the temperature, humidity and dust concentration data in the environment;

[0046] The energy supply unit 4 is installed on the support platform 1 and is used for supplying energy to each component;

[0047] The intelligent control unit 5 is installed on the support platform 1 and is respectively connected to the first intelligent sensing unit 3, the spray cooling and dust reduction execution unit 2, and the energy supply unit 4.

[0048] In the present invention, through the setting of the cooling device, the liquid in the water tank can be cooled, so that the temperature of the spray can be reduced. In this way, while spraying to reduce dust, the temperature in the environment can be synchronously reduced, achieving the operation effect of synchronously reducing dust and temperature. The outer contour of the spray support is arc-shaped, and multiple external nozzles are circumferentially and spacedly installed on the spray support. The arc-shaped contour of the spray support can be used to support multiple nozzles to positions closer to the roadway roof and sidewalls. Thus, when multiple nozzles perform spraying operations, multiple nozzles can be used to spray the entire operation of the roadway simultaneously, that is, the full-section spraying operation of the roadway is realized. Through the setting of the first intelligent sensing unit, it is convenient to collect the temperature, humidity, and dust concentration data at the operation position in real time. Furthermore, it is convenient to dynamically adjust the number and numbers of the nozzles that need to perform spraying operations according to the temperature, humidity, and dust concentration data of the operation environment. At the same time, it is also convenient to dynamically adjust the spraying angle and the size of the spraying amount to improve the effect and efficiency of spray dust reduction and cooling. Through the setting of the intelligent control unit, the intelligent control of the spray dust reduction and cooling operation can be realized.

[0049] The system has a simple structure, low manufacturing cost, and can achieve full-section coverage of the roadway. It can perform synchronous spray dust reduction and cooling operations on the full section of the roadway, and can effectively solve problems such as incomplete coverage, untimely response, and cumbersome manual adjustment of the spray system in the existing high-temperature and high-dust operation environment of mines, meeting the high-efficiency governance requirements of the complex environment in deep mines.

[0050] In order to facilitate the slidable installation of multiple nozzles around the spray support, so that the multiple nozzles can be supported in an arc shape around by the spray support, thus better meeting the spray coverage requirements of the entire roadway cross-section. At the same time, in order to facilitate the convenient position change of the nozzles in the annular groove on the spray support to adapt to different working conditions, an annular groove 18 is opened on the outer circular surface of the spray support 10, and a plurality of communication holes 19 are circumferentially spaced on its inner circular surface; the nozzle 11 is an electric universal nozzle, and its water inlet end has a universal ball joint 20, and the universal ball joint 20 is slidably installed in the annular groove 18. For the nozzle 11, the angle of the nozzle 11 can be adjusted by using the built-in servo motor therein, and preferably the adjustment range is ±45° horizontally and ±60° vertically. In this way, the nozzle 11 can be arbitrarily adjusted in position within the circumferential range of the spray support 11, and at the same time, its spray angle can be adjusted at multiple angles, enabling different directional spray operations for different cross-sections; further preferably, multiple nozzles 11 can be evenly distributed on the spray support 10, and at the same time, the positions of the respective nozzles 11 on the spray support 10 can also be adjusted according to different usage conditions to achieve a variable spray arrangement within the overall width range of the system.

[0051] The water supply network 12 includes a main drainage pipeline 13, auxiliary drainage pipelines 14, branch drainage pipelines 15, solenoid valves 17, and connecting hoses 16; the water inlet end of the main drainage pipeline 13 is connected to the water outlet end of the high-pressure pump group 8, and the water inlet ends of multiple auxiliary drainage pipelines 14 are connected to the water outlet end of the main drainage pipeline 13 through pipeline connectors; the branch drainage pipelines 15 are in a Y shape, having one water inlet end and two water outlet ends, the water inlet ends of multiple branch drainage pipelines 15 are respectively connected to the water outlet ends of multiple auxiliary drainage pipelines 14, the water inlet ends of multiple connecting hoses 6 are respectively connected to the water outlet ends of multiple branch drainage pipelines 15 through multiple solenoid valves 17, and their water outlet ends penetrate into the annular groove 18 through multiple communication holes 19 and are respectively connected to the universal ball joints 20 of multiple nozzles 11. For each solenoid valve 17, the intelligent control unit 5 can independently control its opening and closing time, and at the same time, can control the opening degree of its valve port to effectively adjust the liquid flow rate and speed entering the corresponding nozzle 11, thereby achieving the adjustment of the spray volume. Preferably, the intelligent control unit 5 can comprehensively determine the solenoid valves 17 that need to be opened according to the temperature, humidity, and dust concentration data in the current working environment, so as to selectively enable specific multiple nozzles 11 to perform spray dust reduction and temperature reduction operations; in addition, the intelligent control unit 5 can also intelligently adjust the angles of the nozzles 11 to effectively adjust the atomization direction, further improving the spray dust reduction and temperature reduction effect to achieve automatic orientation of the spray direction. The universal ball joint 20 is slidably installed in the annular groove 18, so that the positions of multiple nozzles 11 on the spray support 10 can be adjusted according to the actual situation of the roadway to meet different operation requirements, thereby improving the flexibility of adjustment. By arranging multiple branch drainage pipelines in a Y shape, it is convenient to use one branch drainage pipeline to supply water to two adjacent nozzles, which is beneficial to simplifying the structure of the water supply network and can reduce the resistance during the water supply process through the Y-shaped water distribution supply method.

[0052] As a preference, the spray support 10 is integrally in a circular ring shape with an open bottom, and the open bottom part is welded to the top of the rear end of the water tank 6. Further preferably, it is in a 320° arc shape, and the radius is preferably 750 millimeters to effectively support multiple nozzles 11 to cover the entire cross-section of the roadway;

[0053] In order to enable the full-section intelligent spray dust reduction and temperature control system to move flexibly in the working roadway and effectively adapt to the driving environment of the roadway, the support platform 1 is a mobile support platform, which includes a carriage 21, a chassis 22 installed at the bottom of the carriage 21, a driving motor installed at the bottom of the chassis 22, and two crawler mechanisms 23 arranged on the outer sides of both ends of the carriage 21; the driving motor is connected to the intelligent control unit 5; the crawler mechanism 23 includes a driving wheel 24, a tensioning wheel 25, a supporting wheel 26 and a crawler plate 27; the driving wheel 24 and the tensioning wheel 25 are respectively rotatably installed at both ends in the length direction of the chassis 22, and the driving wheel 24 is connected to the driving motor; a plurality of supporting wheels 26 are spaced apart and distributed between the driving wheel 24 and the tensioning wheel 25, and are rotatably connected to the middle section of the chassis 22; multiple crawler plates 27 are connected in sequence to form a ring, and are wound and connected to the outside of the driving wheel 24, a plurality of supporting wheels 26 and the tensioning wheel 25. The crawler mechanism 23 is used to drive the carriage 21 to move in the mine roadway. The tensioning wheel 25 cooperates with a plurality of supporting wheels 26 and the driving wheel 24 to support the multiple crawler plates 27 connected together to maintain their stability. At the same time, the driving wheel 24 is used to drive the multiple crawler plates 27 to rotate, so as to drive the carriage 21 to perform a walking action in the working environment. Among them, the water tank 6 is installed on the top of the carriage 21, and a water inlet 40 is also provided on its top for convenient water replenishment. Preferably, water can be directly replenished from the water pipe in the roadway. Preferably, the height of the spray support 10 is higher than the height of the carriage 21, and its width is wider than the width of the carriage 21. By installing two crawler mechanisms on the outside of the carriage of the support platform and assembling a driving motor on the chassis of the support platform, the crawler mechanism can be used to drive the support platform to move in the roadway, improving the flexibility of the system to walk and the adaptability to the roadway section. By adopting this trolley-type mobile platform and carrying an arc-shaped spray support structure and an intelligent spray execution module, combined with sensor real-time monitoring and intelligent control technology, the spray system can automatically adjust the spraying range and intensity according to the changes in the mine environment. At the same time, this combination innovatively integrates the annular groove-type slide rail and the spray support onto the support platform with a mobile function, avoiding the high-cost fixed installation in the roadway, greatly reducing the manual construction volume, improving the applicability and economy of the system, and providing a more intelligent, efficient and low-cost solution for mine safety production.

[0054] As a preference, the chassis 22 is of a frame structure, and its outer contour is cube-shaped, which is used to carry each component;

[0055] As a preference, the high-pressure pump set 8 includes a centrifugal pump 28, an electric motor 29, and a main solenoid valve 31; the electric motor 29 is coaxially connected to the centrifugal pump 28; the main solenoid valve 31 is connected to the water inlet end of the centrifugal pump 28 and is used to control the on-off of the water inlet passage. In order to enable the system to have the off-line operation ability, and at the same time, in order to facilitate the charging operation of the battery pack, the energy supply unit 4 includes a battery pack 32 and a charging interface. The charging interface is arranged on the support platform 1 and is connected to the battery pack 32 and is used to be connected to the power supply of the mine power supply system to charge the battery pack 32. As a preference, the battery pack 32 is installed inside the carriage 21 to supply electricity to each electrical component. As a further preference, the charging interface can be compatible with two modes of direct power supply underground and independent energy supply, avoiding the potential safety hazards brought by the need for additional wiring for power supply in traditional devices and improving the application safety of the system in high-risk areas such as gas explosions.

[0056] In order to make the overall structure of the intelligent sensing unit one simpler, and at the same time, in order to effectively sense the temperature, humidity, and dust concentration data in the environment, the intelligent sensing unit one 3 includes a probe bracket 33, a temperature sensor 34, a humidity sensor 35, and a dust concentration sensor 36. The lower end of the probe bracket 33 is installed at the top of the front end of the water tank 6, and its upper end extends to the outside of the front end of the support platform 1; the temperature sensor 34, the humidity sensor 35, and the dust concentration sensor 36 are installed at intervals at the upper end of the probe bracket 33. Among them, the temperature sensor 34, the humidity sensor 35, and the dust concentration sensor 36 are respectively used to collect the temperature signal, humidity signal, and dust concentration signal in the current working environment and send them to the controller in the intelligent control unit 5. The controller obtains the temperature data, humidity data, and dust concentration data in the current working environment according to the temperature signal, humidity signal, and dust concentration signal in the current working environment. Extending the probe bracket to the outside of the front end of the support platform can more effectively sense the temperature, humidity, and dust concentration data in the working environment, and can avoid the adverse effects of the differences in temperature, humidity, and dust concentration on the support platform on the temperature, humidity, and dust concentration in the environment, ensuring the measurement accuracy.

[0057] As a preference, the cooling device 7 includes a spiral copper tube 37, a refrigeration component 38, and a refrigerant storage tank 39;

[0058] The spiral copper tube 37 extends in a spiral shape and is arranged in the inner cavity of the water tank 6; the refrigeration assembly 38 is installed at the upper end of the water tank 6, and it includes a compressor, a condenser and a throttle valve. The inlet of the compressor is connected to one end of the spiral copper tube 37, the inlet of the condenser is connected to the outlet of the compressor, the outlet of the throttle valve is connected to the other end of the spiral copper tube 37, the inlet of the refrigerant storage tank 39 is connected to the outlet of the condenser through the first connecting pipeline, and its outlet is connected to the inlet of the throttle valve through the second connecting pipeline. As a preference, the refrigerant storage tank 39 stores R1234yf refrigerant. This connection method can enable the refrigerant to circulate through the spiral copper tube, and through the combined action of the compressor, condenser and throttle valve, the refrigerant flowing into the spiral copper tube can be in a low-temperature state, so that the liquid in the water tank can be cooled by means of heat exchange. In this way, it can cooperate with the spray pipe network to form a spray-heat exchange integrated fog-cooling coupling cooling effect, and further, while realizing spray dust suppression, the cooling operation can be more efficiently achieved.

[0059] To improve the intelligence level of the system, it further includes an intelligent sensing unit II. The intelligent sensing unit II includes a top distance measuring sensor 42, side distance measuring sensors 43, a water level sensor 41, a pressure gauge 30, and a radar detection module. The top distance measuring sensor 42 is installed on one side of the top end of the spray bracket 10, and two side distance measuring sensors 43 are relatively installed on one side of both ends in the width direction of the spray bracket 10; the water level sensor 41 is installed in the water tank 13 for collecting the liquid level signal inside the water tank 13 in real time; the pressure gauge 30 is connected to the water outlet end of the centrifugal pump 28 for collecting the pressure signal of the water outlet channel in real time; a plurality of radar detection modules are installed around the support platform 1 for collecting the obstacle signals around in real time; the intelligent sensing unit II is connected to the intelligent control unit 5. Among them, the top distance measuring sensor 42 is used to collect the first distance signal between the top of the spray bracket 10 and the roadway roof and send it to the controller in the intelligent control unit 5. The controller obtains the first distance data between the top of the spray bracket 10 and the roadway roof according to the first distance signal. The side distance measuring sensors 43 are used to collect the second distance signals between both sides of the spray bracket 10 and the roadway sidewalls and send them to the controller in the intelligent control unit 5. The controller obtains the second distance data between the sides of the spray bracket 10 and the roadway sidewalls according to the second distance signals; the water level sensor 41 is used to collect the liquid level signal in the water tank 6 and send it to the controller in the intelligent control unit 5. The controller obtains the liquid level height data in the water tank 6 according to the liquid level signal. In this way, the liquid level height situation inside the water tank 6 can be sensed in time. When the liquid level height does not meet the operation requirements, water replenishment operation can be carried out in time through warning, so that the situation of the centrifugal pump 28 being damaged due to idling can be effectively avoided; the pressure gauge 30 is used to collect the pressure signal of the water outlet channel of the centrifugal pump 28 and send it to the controller in the intelligent control unit 5. The controller obtains the pressure data of the water outlet channel according to the pressure signal; a plurality of radar detection modules are used to collect the obstacle signals around the support platform 1 and send them to the controller in the intelligent control unit 5. The controller obtains the obstacle situation around the support platform 1 according to the surrounding obstacle signals; further, the controller can also perform three-dimensional modeling and obstacle recognition based on the detection data of the radar detection module, which can facilitate the controller to better plan the path, so that the support platform 1 can realize intelligent movement and obstacle avoidance driving in the mine, improving the intelligence level of walking.

[0060] In order to facilitate wireless communication with the outside world and, at the same time, to give a warning reminder in time when an abnormality occurs, the intelligent control unit 5 includes a controller, an alarm, and a wireless communication module; the alarm is installed on the water tank 6 for performing an alarm action; the wireless communication module is installed on the water tank 6 for establishing a wireless communication connection between the intelligent control unit 5 and external devices; the controller is installed on the water tank 6 and is respectively connected to the alarm and the radar detection module.

[0061] The present invention is based on a modular crawler mobile platform, which has a compact structure, strong mobility, good flexibility, and high intelligence. It is suitable for use in mine environments with narrow roadways and complex terrains. The entire system can complete the closed-loop control process of "perception - decision - execution" without manual intervention, support long-term stable operation underground, and reduce the labor intensity and safety risks of operators. At the same time, by installing an arc spray frame, angle-adjustable nozzles, and multi-parameter environmental sensors, the system can automatically adjust the spray mode and parameters according to working conditions such as temperature and dust concentration in the roadway, achieving on-demand, directional, and efficient spray control. Meanwhile, the spray system adopts a multi-level branch pipe network design. Each branch is connected to an atomizing nozzle controlled by an independent solenoid valve. The nozzle is driven by a built-in servo motor and is clamped in a movable annular groove through a universal ball joint. This structure can not only achieve three-dimensional adjustment of the nozzle angle but also support movement along the track on the spray support. Combining with the temperature, humidity, dust concentration data, and distance data collected by the intelligent sensing unit, it can achieve precise control of the atomization direction, position, and flow rate. Compared with existing fixed-angle spray devices, the present invention can significantly improve the droplet coverage rate and spray efficiency, avoiding waste of resources. At the same time, the system has a self-driving or collaborative movement function, adapts to different roadway cross-sections and working rhythms, avoids repeated spraying and energy waste, significantly improves the utilization efficiency of the spray liquid, reduces water and energy consumption, and ensures the safety and comfort of operators. The overall structure of the system is flexibly installed, suitable for various mine roadway environments, has an ideal temperature reduction and dust reduction effect, and a high level of intelligence, with good prospects for popularization and application.

[0062] The present invention also provides a full-section intelligent spray dust reduction and temperature reduction method, which uses a full-section intelligent spray dust reduction and temperature reduction system and includes the following steps:

[0063] Step 1: Operation preparation;

[0064] Place the full-section intelligent spray dust reduction and temperature reduction system in the roadway to be operated and conduct tests on various functions;

[0065] During the testing process of various functions, it is necessary to ensure that all components are in good condition and functioning properly. For example, ensure that the crawler mechanism 23 runs smoothly, ensure that the battery pack 32 has sufficient power, ensure that the charging interface is in a normal state, ensure that the high-pressure pump group 8 can run smoothly, ensure that the liquid level in the water tank 6 meets the operation requirements, and all pipeline joints are in a normal state. Ensure that the communication between the intelligent sensing unit 1-3, the intelligent sensing unit 2 and the intelligent control unit 5 is normal, and the temperature sensor 34, the humidity sensor 35 and the dust concentration sensor 36 can collect temperature, humidity and dust concentration signals in real time. The top ranging sensor 42 and the side ranging sensor 43 can collect distance signal 1 and distance signal 2. The water level sensor 41 can collect the liquid level signal, and the pressure gauge 30 can collect the pressure signal. The radar detection module can collect the obstacle signal in the corresponding direction. At the same time, it can be checked whether the nozzle 11 can slide in the annular groove 18 to ensure that the nozzle 11 can move smoothly on the spray bracket 10;

[0066] As a further preference, during the preparation period, the full-section intelligent spray dust reduction and temperature reduction system can be allowed to walk repeatedly in the roadway to be operated, and during the walking process, 3D modeling and path planning can be carried out using the detection data of multiple radar detection modules, so that multiple preset walking paths can be obtained in advance. In this way, during the formal operation process, when an obstacle appears on a certain walking path, it can be directly switched to another walking path for driving and perform spray dust reduction and temperature reduction operations, which can more reliably achieve automatic driving, obstacle avoidance and spray dust reduction and temperature reduction operations;

[0067] Step 2: Start the spray cooling and dust reduction operation;

[0068] S21: The controller obtains the temperature data, humidity data and dust concentration data in the current working environment through the temperature sensor 34, the humidity sensor 35 and the dust concentration sensor 36, obtains the distance data 1 from the top of the spray bracket 10 to the roof of the roadway through the top ranging sensor 42, and obtains the distance data 2 from the side of the spray bracket 10 to the side of the roadway through the side ranging sensor 43. Obtain the surrounding obstacle situation through multiple radar detection modules, and select the number and number of nozzles 11 to be started based on the temperature data, humidity data and dust concentration data in the current working environment. Determine the spray volume and atomization direction of the selected nozzles 11 based on the distance data 1 and distance data 2, and plan the walking path based on the surrounding obstacle situation;

[0069] S22: The controller controls the driving motor to start working, so that the crawler mechanism 23 drives the support platform 1 to move along a preset path. The controller controls the main solenoid valve 31 to open, controls the motor 29 to drive the centrifugal pump 28 to start working, controls the angle of the selected nozzle 11 to rotate to the atomization direction, and controls the solenoid valve 17 corresponding to the selected nozzle 11 to open. At the same time, the valve opening of the opened solenoid valve 17 is controlled so that the spray amount of the nozzle 11 reaches the required spray amount for performing full-section spray dust suppression operation;

[0070] At the same time, the real-time feedback temperature data is compared with a preset temperature threshold. When the temperature data is higher than the preset temperature threshold, the cooling device 7 is controlled to start working to cool the water in the water tank 6, and the spray is used to reduce the ambient temperature until the temperature data is not higher than the preset temperature threshold, and then the cooling device 7 is controlled to stop working for full-section spray dust suppression and cooling operation; and the number and numbers of the nozzles 11 to be started are adjusted according to the real-time feedback temperature data, humidity data and dust concentration data in the current working environment, and the spray amount and atomization direction of the nozzles 11 to be started are adjusted according to the real-time feedback distance data one and distance data two; as a further preference, when the temperature data in the current working environment is higher than the preset temperature threshold, first adjust the nozzle angle and spray frequency of the nozzles 11 performing spray operation to improve the cooling response speed. After a set time period after adjusting the nozzle angle and spray frequency, when the temperature data is still higher than the preset temperature threshold, then control the cooling device 7 to start working to cool the water in the water tank 6;

[0071] At the same time, the traveling path is dynamically adjusted according to the real-time feedback of the surrounding obstacle situation;

[0072] At the same time, the pressure data of the water outlet channel of the centrifugal pump 28 is obtained through the pressure gauge 30, and the liquid level height data in the water tank 6 is obtained through the water level sensor 41. The pressure data is compared with a set pressure range, and the liquid level height data is compared with a set liquid level height threshold. When the pressure data exceeds the predetermined pressure range or when the liquid level height data is lower than the set liquid level height threshold, it is determined that the current is in an abnormal working condition, and the alarm is controlled to perform an alarm action. At the same time, the driving motor is controlled to stop, the main solenoid valve 31 is controlled to close, the motor 29 is controlled to stop, and the solenoid 17 is controlled to close until the abnormal working condition disappears, and then the previous working condition is restored.

[0073] In order to use multiple full-section intelligent spray dust reduction and temperature reduction systems to synchronously spray-cover the entire section of the roadway and more efficiently achieve spray dust reduction and temperature reduction operations, in step two, when multiple full-section intelligent spray dust reduction and temperature reduction systems are arranged in the working roadway simultaneously, one full-section intelligent spray dust reduction and temperature reduction system is used as the main system, and the remaining multiple full-section intelligent spray dust reduction and temperature reduction systems are used as slave systems. The main system and the multiple slave systems are connected by wireless communication. When the main system and the multiple slave systems simultaneously perform spray dust reduction and temperature reduction operations, the multiple slave systems send the temperature data, humidity data, and dust concentration data at their respective locations to the main system. The controller in the main system issues corresponding operation interval data to each slave system according to the temperature data, humidity data, and dust concentration data at the locations of the main system and the slave systems. Each slave system adjusts the spacing between adjacent two full-section intelligent spray dust reduction and temperature reduction systems according to the operation interval data, so as to adjust the spacing between the multiple full-section intelligent spray dust reduction and temperature reduction systems in real time according to the changes in temperature, humidity, and dust concentration in different areas of the roadway, so as to achieve coordinated and linked full-section spray dust reduction and temperature reduction coverage among the multiple full-section intelligent spray dust reduction and temperature reduction systems. Through the intelligent linkage control among multiple systems, the controllers built in each system can perform information interaction through wireless communication, and then can automatically adjust the spacing between each other according to the differences in the local environment, realizing adaptive layout and regional coordinated operation. This linkage mechanism can dynamically plan the spray route and coverage range according to the changes in the shape of the roadway section and the intensity of heat damage, ensuring no blind area in the cooling and dust reduction coverage, so as to meet the actual needs of the "full-section" intelligent spray operation underground.

[0074] This patent proposes a full-section intelligent spray dust reduction and temperature reduction method, aiming to achieve full-section spray coverage of the mine roadway and improve the efficiency of dust reduction and temperature reduction. During the operation process, through the cooling effect of the cooling module and the coordinated action of high-pressure water mist, the dual dust reduction and temperature reduction operations of the mine environment are realized, significantly improving the operation efficiency and greatly improving the dust reduction and temperature reduction effect. Using this method can effectively reduce the blind area of spray operation, better adapt to the heterogeneity of ventilation, heat damage, and dust distribution in different sections, and realize the "spray-on-demand" operation. At the same time, using the combination of spray and the cooling function in the cooling module to form a "fog-cooling coupling" enhances the cooling intensity and improves the thermal environment of the operation area, which is beneficial to improving the comfort of the operators during the operation process. During the operation process, according to the temperature, humidity, and dust concentration data, the flow rate and angle of the spray are intelligently adjusted, and variable spray layout within the width and height of the vehicle can be realized, with extremely strong full-section coverage ability. Compared with the prior art, the present invention provides a full-section spray intelligent dust reduction and temperature reduction system that can operate independently and be intelligently adjusted in the complex mine environment, achieving multiple technological breakthroughs such as controllable spray direction, coordinated linkage of multiple systems, real-time environmental perception and response control.

[0075] The implementation process of this method is simple and has a high degree of intelligence. It can achieve the collaborative operation of full-section spraying, efficient temperature reduction and dust suppression, and can realize on-demand, directional, and efficient spraying, dust suppression, and temperature control, effectively solving the problems of incomplete coverage, untimely response, and cumbersome manual adjustment of the spraying system in the existing high-temperature and high-dust working environment of mines.

Claims

1. A full-section intelligent spray dust reduction and cooling system, comprising a support platform (1), characterized in that: It also includes a spray cooling and dust reduction execution unit (2), an intelligent sensing unit (3), an energy supply unit (4) and an intelligent control unit (5); The spray cooling and dust reduction execution unit (2) is installed at the rear of the support platform (1), and comprises a water tank (6), a cooling device (7), a high-pressure pump group (8) and a spray pipe network; the cooling device (7) is connected to the water tank (6) and is used to perform a cooling operation on the liquid in the water tank (6); the water inlet end of the high-pressure pump group (8) is connected to the water outlet (9) of the water tank (6); the spray pipe network comprises a spray bracket (10), a nozzle (11) and a water supply pipe network (12); the outer contour of the spray bracket (10) is an arc shape, and a plurality of nozzles (11) are installed on the spray bracket (10) at intervals in the circumferential direction; the water inlet end of the water supply pipe network (12) is connected to the water outlet end of the high-pressure pump group (8), and its multiple water outlet ends are respectively connected to multiple nozzles (11); The intelligent sensing unit 1 (3) is installed on the supporting platform (1) and is used to sense the temperature, humidity and dust concentration data in the environment; The energy supply unit (4) is installed on the supporting platform (1) and is used to supply energy to various components; The intelligent control unit (5) is installed on the supporting platform (1) and is respectively connected to the intelligent sensing unit 1 (3), the spray cooling and dust reduction execution unit (2) and the energy supply unit (4).

2. The full-section intelligent spray dust reduction and cooling system according to claim 1 is characterized in that: The outer circumferential surface of the spray bracket (10) is provided with an annular groove (18), and the inner circumferential surface thereof is provided with a plurality of communication holes (19) at intervals in the circumferential direction; the nozzle (11) is an electric universal nozzle, and the water inlet end thereof has a universal ball joint (20), and the universal ball joint (20) is slidably installed in the annular groove (18); the water supply network (12) comprises a main drainage pipeline (13), an auxiliary drainage pipeline (14), a branch drainage pipeline (15), a solenoid valve (17) and a connecting hose (16); the water inlet end of the main drainage pipeline (13) is connected to the water outlet end of the high-pressure pump group (8), and a plurality of auxiliary drainage pipelines (15) are connected to the branch drainage pipeline (15), and the branch drainage pipeline (16) is connected to the branch drainage pipeline (15). The water inlet end of the drainage pipeline (14) is connected to the water outlet end of the main drainage pipeline (13) through a pipeline connector; the branch drainage pipeline (15) is Y-shaped, having a water inlet end and two water outlet ends, the water inlet ends of the plurality of branch drainage pipelines (15) are respectively connected to the water outlet ends of the plurality of auxiliary drainage pipelines (14), the water inlet ends of the plurality of connecting hoses (6) are respectively connected to the water outlet ends of the plurality of branch drainage pipelines (15) through a plurality of solenoid valves (17), and the water outlet ends thereof penetrate into the annular groove (18) through a plurality of connecting holes (19) and are respectively connected to the universal ball joints (20) of the plurality of nozzles (11).

3. A full-section intelligent spray dust reduction and cooling system according to claim 2, characterized in that: The support platform (1) is a mobile support platform, comprising a carriage (21), a chassis (22) mounted at the bottom of the carriage (21), a driving motor mounted at the bottom of the chassis (22), and two crawler mechanisms (23) arranged on the outer sides of both ends of the carriage (21); the driving motor is connected to an intelligent control unit (5); the crawler mechanism (23) comprises a driving wheel (24), a tensioning wheel (25), a supporting wheel (26) and a track shoe (27); the driving wheel (24) and the tensioning wheel (25) are rotatably mounted at both ends of the chassis (22) in a length direction, and the driving wheel (24) is connected to the driving motor; a plurality of supporting wheels (26) are distributed between the driving wheel (24) and the tensioning wheel (25) at intervals, and are rotatably connected to the middle section of the chassis (22); a plurality of track shoes (27) are connected in sequence to form a ring, and are wound around and connected to the outside of the driving wheel (24), the plurality of supporting wheels (26) and the tensioning wheel (25).

4. The full-section intelligent spray dust reduction and cooling system according to claim 3 is characterized in that: The high-pressure pump group (8) comprises a centrifugal pump (28), an electric motor (29) and a main electromagnetic valve (31); the electric motor (29) is coaxially connected to the centrifugal pump (28); the main electromagnetic valve (31) is connected to the water inlet end of the centrifugal pump (28) and is used to control the on-off of the water inlet channel; the energy supply unit (4) comprises a battery pack (32) and a charging interface, the charging interface is arranged on the support platform (1) and is connected to the battery pack (32) and is used to be connected to a power source of a mine power supply system to charge the battery pack (32).

5. The full-section intelligent spray dust reduction and cooling system according to claim 1 is characterized in that: The intelligent sensing unit (3) comprises a probe bracket (33), a temperature sensor (34), a humidity sensor (35) and a dust concentration sensor (36); the lower end of the probe bracket (33) is mounted on the top of the front end of the water tank (6), and the upper end thereof extends to the outside of the front end of the support platform (1); the temperature sensor (34), the humidity sensor (35) and the dust concentration sensor (36) are mounted at intervals on the upper end of the probe bracket (33).

6. The full-section intelligent spray dust reduction and cooling system according to claim 1 is characterized in that: The temperature reduction device (7) comprises a spiral copper tube (37), a refrigeration component (38) and a refrigerant storage tank (39); The spiral copper tube (37) extends in a spiral shape and is arranged in the inner cavity of the water tank (6); the refrigeration component (38) is installed at the upper end of the water tank (6), and includes a compressor, a condenser and a throttle valve, the inlet of the compressor is connected to one end of the spiral copper tube (37), the inlet of the condenser is connected to the outlet of the compressor, the outlet of the throttle valve is connected to the other end of the spiral copper tube (37), the inlet of the refrigerant storage tank (39) is connected to the outlet of the condenser through a connecting pipe 1, and its outlet is connected to the inlet of the throttle valve through a connecting pipe 2.

7. The full-section intelligent spray dust reduction and cooling system according to claim 4 is characterized in that: The invention also comprises an intelligent sensing unit 2, wherein the intelligent sensing unit 2 comprises a top distance sensor (42), a side distance sensor (43), a water level sensor (41), a pressure gauge (30) and a radar detection module, wherein the top distance sensor (42) is installed on one side of the top of the spray bracket (10), and the two side distance sensors (43) are installed on one side at both ends of the spray bracket (10) in a width direction; the water level sensor (41) is installed in the water tank (13) and is used to collect the liquid level signal inside the water tank (13) in real time; the pressure gauge (30) is connected to the water outlet end of the centrifugal pump (28) and is used to collect the pressure signal of the water outlet channel in real time; a plurality of radar detection modules are installed around the supporting platform (1) and are used to collect the surrounding obstacle signals in real time; and the intelligent sensing unit 2 is connected to the intelligent control unit (5).

8. The full-section intelligent spray dust reduction and cooling system according to claim 7 is characterized in that: The intelligent control unit (5) comprises a controller, an alarm and a wireless communication module; the alarm is mounted on the water tank (6) and is used to execute an alarm action; the wireless communication module is mounted on the water tank (6) and is used to establish a wireless communication connection between the intelligent control unit (5) and an external device; the controller is mounted on the water tank (6) and is respectively connected to the alarm and the radar detection module.

9. A full-section intelligent spray dust reduction and cooling method, using a full-section intelligent spray dust reduction and cooling system as claimed in claim 8, characterized in that: The following steps are involved: Step 1: Operation preparation; Place the full-section intelligent spray dust reduction and cooling system in the tunnel to be operated, and test various functions; Step 2: Start the spray cooling and dust reduction operation; S21: The controller obtains temperature data, humidity data and dust concentration data in the current working environment through the temperature sensor (34), the humidity sensor (35) and the dust concentration sensor (36), obtains distance data 1 of the top of the spray bracket (10) from the tunnel roof through the top distance sensor (42), obtains distance data 2 of the side of the spray bracket (10) from the tunnel side through the side distance sensor (43), obtains surrounding obstacle conditions through multiple radar detection modules, and selects the number and serial number of the nozzles (11) to be activated based on the temperature data, humidity data and dust concentration data in the current working environment, determines the spray volume and atomization direction of the selected nozzle (11) based on the distance data 1 and the distance data 2, and plans a walking path based on the surrounding obstacle conditions; S22: The controller controls the driving motor to start working, so that the crawler mechanism (23) drives the supporting platform (1) to move along a preset path. The controller controls the main electromagnetic valve (31) to open, controls the electric motor (29) to drive the centrifugal pump (28) to start working, controls the angle of the selected nozzle (11) to rotate to the atomization direction, controls the electromagnetic valve (17) corresponding to the selected nozzle (11) to open, and at the same time, controls the valve opening of the opened electromagnetic valve (17) so that the spray amount of the nozzle (11) reaches the required spray amount, so as to perform a full-section spray dust reduction operation; At the same time, the temperature data fed back in real time is compared with a preset temperature threshold value. When the temperature data is higher than the preset temperature threshold value, the cooling device (7) is controlled to start working, the water in the water tank (6) is cooled, and the temperature of the environment is lowered by spraying. When the temperature data is no higher than the preset temperature threshold value, the cooling device (7) is controlled to stop working, so as to perform a comprehensive spray dust reduction and cooling operation. The number and serial number of the nozzles (11) to be started are adjusted according to the temperature data, humidity data and dust concentration data in the current working environment fed back in real time, and the spray volume and atomization direction of the nozzles (11) to be started are adjusted according to the distance data 1 and distance data 2 fed back in real time. At the same time, the travel path is dynamically adjusted according to the real-time feedback of surrounding obstacles; At the same time, the pressure data of the water outlet channel of the centrifugal pump (28) is obtained according to the pressure gauge (30), the liquid level data in the water tank (6) is obtained through the water level sensor (41), and the pressure data is compared with the set pressure range, and the liquid level data is compared with the set liquid level threshold. When the pressure data exceeds the predetermined pressure range or when the liquid level data is lower than the set liquid level threshold, it is determined that the current working condition is abnormal, and the alarm is controlled to perform an alarm action. At the same time, the drive motor is controlled to stop, the main electromagnetic valve (31) is controlled to close, the electric motor (29) is controlled to stop, and the electromagnetic (17) is controlled to close until the abnormal working condition disappears, and the previous working condition is restored.

10. A full-section intelligent spray dust reduction and temperature reduction method according to claim 9, characterized in that: In step 2, when multiple full-section intelligent spray dust reduction and cooling systems are arranged in the working tunnel at the same time, one full-section intelligent spray dust reduction and cooling system is used as the main system, and the remaining multiple full-section intelligent spray dust reduction and cooling systems are used as slave systems, and the main system and multiple slave systems are connected through wireless communication. When the main system and multiple slave systems perform spray dust reduction and cooling operations at the same time, multiple slave systems send temperature data, humidity data and dust concentration data at their locations to the main system. The controller in the main system sends corresponding operation interval data to each slave system according to the temperature data, humidity data and dust concentration data at the locations of the main system and the slave system. Each slave system adjusts the distance between two adjacent full-section intelligent spray dust reduction and cooling systems according to the operation interval data, so as to adjust the distance between multiple full-section intelligent spray dust reduction and cooling systems in real time according to the changes in temperature, humidity and dust concentration in different areas of the tunnel, so as to achieve coordinated linkage full-section spray dust reduction and cooling coverage between multiple full-section intelligent spray dust reduction and cooling systems.

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