A mobile ventilation system for mines and a control method thereof

Abstract

The present invention relates to the field of underground ventilation technology. The present invention discloses a mobile ventilation system in a mine and a control method thereof. The system includes: an information collection device for obtaining temperature information and personnel location information in the mine; a ventilation and cooling device, which is arranged in the mine tunnel; a control platform, wherein the information collection device and the ventilation and cooling device are respectively electrically connected or wirelessly connected to the control platform, and the control platform is used to determine the area to be cooled according to the temperature information and personnel location information in the mine, and the control platform is used to control the ventilation and cooling device to move to the area to be cooled, and ventilate and cool the area to be cooled. The control platform of the present application can determine the area to be cooled according to the temperature information and personnel location information in the mine, and control the ventilation and cooling device to move to the area to be cooled to ventilate and cool the area to be cooled, thereby achieving the purpose of on-demand refrigeration and reducing energy consumption.

Description

Technical Field

[0001] The present invention relates to the technical field of underground ventilation, and in particular to a mobile ventilation system in a mine and a control method thereof. Background Art

[0002] With the increase of mining depth, the rock temperature in deep mines increases significantly, which causes the wind temperature of the mining face to increase, seriously deteriorating the underground working environment. At present, refrigeration technology is the most important cooling method in deep mining, but in the actual production and operation of many mining enterprises, due to the limitations of cost and technical conditions, centralized cooling of the entire mine is impossible and not economically beneficial. Ventilation and cooling of non-essential areas in the deep will cause unnecessary consumption of energy. Therefore, finding an underground ventilation and cooling system that can achieve on-demand cooling is a technical problem that needs to be solved urgently. Summary of the invention

[0003] In view of this, the present invention provides a mobile ventilation system for an underground mine and a control method thereof.

[0004] Specifically, the following technical solutions are included:

[0005] In a first aspect, a mobile ventilation system for an underground mine is provided, comprising:

[0006] Information collection device, used to obtain temperature information and personnel location information in the mine;

[0007] A ventilation and cooling device, wherein the ventilation and cooling device is arranged in a mine tunnel;

[0008] The control platform is provided, wherein the information collection device and the ventilation and cooling device are electrically connected or wirelessly connected to the control platform respectively, and the control platform is used to determine the area to be cooled according to the temperature information and personnel location information in the mine, and the control platform is used to control the ventilation and cooling device to move to the area to be cooled, and ventilate and cool the area to be cooled.

[0009] Preferably, the ventilation and cooling device includes a traction device, a device base, a cold source, a heat exchange device and a ventilation device;

[0010] The traction device is connected to the device base, and the traction device is electrically connected or wirelessly connected to the control platform;

[0011] The cold source, the heat exchange device and the ventilation device are arranged on the device base, the heat exchange pipes of the cold source and the heat exchange device are connected through a circulating water pump, and the ventilation device is connected to the shell of the heat exchange device.

[0012] Preferably, the information collection device further comprises a cold source detection component, and the cold source detection component is arranged in the cold source or on the cold source water circulation pipeline;

[0013] The cold source detection component, the ventilation equipment and the circulating water pump are electrically connected to the control platform respectively.

[0014] Preferably, the control platform includes a path planning module;

[0015] The path planning module is used to plan a travel path according to the location information of the area to be cooled and the location information of the ventilation and cooling device, and the control platform is used to control the ventilation and cooling device to move to the area to be cooled according to the travel path.

[0016] Preferably, the ventilation and cooling device includes a visual device, and the visual device is electrically connected or wirelessly connected to the control platform;

[0017] The visual device is used to identify whether there is an obstacle in the travel path, and the control platform is used to control the ventilation and cooling device to stop moving and send an alarm message when it is determined that there is an obstacle in the travel path.

[0018] In a second aspect, a control method for a mobile ventilation system in a mine is provided, which is applied to a mobile ventilation system in a mine as described in the first aspect, and the method comprises:

[0019] Obtain temperature information and personnel location information in the mine;

[0020] Determine the area to be cooled according to the temperature information and personnel location information in the mine;

[0021] The ventilation and cooling device is controlled to move to the area to be cooled, and ventilates and cools the area to be cooled.

[0022] Preferably, controlling the ventilation and cooling device to move to the area to be cooled, and performing ventilation and cooling on the area to be cooled includes:

[0023] Acquire the location information of the area to be cooled and the location information of the ventilation and cooling device;

[0024] Planning a travel path according to the location information of the area to be cooled and the location information of the ventilation and cooling device;

[0025] The ventilation and cooling device is controlled to move to the area to be cooled according to the travel path.

[0026] Preferably, the ventilation and cooling device includes a visual device, and the method further includes:

[0027] Acquiring image information fed back by the visual device;

[0028] Identify whether there is an obstacle in the travel path according to the image information;

[0029] When it is determined that there is an obstacle in the travel path, the ventilation and cooling device is controlled to stop moving and send an alarm message.

[0030] Preferably, the ventilation and cooling device includes a visual device, and the method further includes:

[0031] When the ventilation and cooling device moves to the area to be cooled, image information of the visual device is obtained, and the staff is identified according to the image information. When the staff is identified, the ventilation and cooling device is controlled to stop moving and is turned on to ventilate and cool the area to be cooled.

[0032] Preferably, a temperature warning value is set in the control platform, and the method further comprises:

[0033] Comparing the temperature information of the mine with the temperature warning value, and determining that the area of ​​the mine where the temperature is greater than or equal to the temperature warning value is a high temperature area;

[0034] When the personnel location information is located in the high temperature area, the high temperature area is determined as the area to be cooled.

[0035] The beneficial effects of the technical solution provided by the present invention include at least:

[0036] The present application can obtain temperature information and personnel location information in the mine by setting up an information collection device. The control platform can determine the area to be cooled according to the temperature information and personnel location information in the mine, and control the ventilation and cooling device to move to the area to be cooled to ventilate and cool the area to be cooled, thereby achieving the purpose of on-demand cooling and reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0038] Figure 1 This is a schematic structural diagram of a ventilation and cooling device according to an embodiment of the present invention;

[0039] Figure 2 A schematic diagram of the structure of a heat exchange device according to an embodiment of the present invention;

[0040] Figure 3 A schematic diagram of the structure of a tunnel temperature sensor according to an embodiment of the present invention;

[0041] Figure 4 A schematic diagram of the structure of a remote controller according to an embodiment of the present invention;

[0042] Figure 5 The present invention is a flow chart of a method for operating a mobile ventilation system in an underground mine according to an embodiment of the present invention.

[0043] The reference numerals in the figures represent respectively:

[0044] 110-water temperature monitor; 120-lane temperature sensor; 211-guide wheel; 212-traction groove; 213-support plate; 214-support platform; 220-cold source; 221-cold source water outlet; 222-cold source water inlet; 223-ice filling port; 230-heat exchange equipment; 231-shell; 232-flow guide cover; 233-air outlet; 234-water side inlet; 235-water Side outlet; 236-heat exchange coil; 240-ventilation equipment; 241-blade; 242-drive wheel; 243-rectifier; 244-main engine; 250-circulating water pump; 251-pump head; 252-five-way valve; 253-pressure tank; 254-operating instrument panel; 260-ventilation pipe; 270-water supply pipeline; 280-return pipeline; 300-control platform; 400-remote control.

[0045] The above drawings have shown a clear embodiment of the present invention, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present invention in any way, but to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] Before further describing the embodiments of the present invention in detail, the directional nouns involved in the embodiments of the present invention, such as "upper part", "lower part", "side part", etc., are Figure 1 The directions shown in the figure are for reference only and do not limit the protection scope of the present invention.

[0048] To make the technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0049] like Figures 1 to 4 As shown, the present application provides a mobile ventilation system in a mine, including: an information collection device for obtaining temperature information and personnel location information in the mine; a ventilation and cooling device, which is arranged in the mine tunnel; a control platform 300, wherein the information collection device and the ventilation and cooling device are respectively electrically connected or wirelessly connected to the control platform 300, and the control platform 300 is used to determine the area to be cooled according to the temperature information and personnel location information in the mine, and the control platform 300 is used to control the ventilation and cooling device to move to the area to be cooled, and ventilate and cool the area to be cooled. The present application can obtain the temperature information and personnel location information in the mine by setting the information collection device, and the control platform 300 can determine the area to be cooled according to the temperature information and personnel location information in the mine, and control the ventilation and cooling device to move to the area to be cooled to ventilate and cool the area to be cooled, thereby achieving the purpose of on-demand cooling and reducing energy consumption.

[0050] Specifically, the information collection device includes a tunnel temperature sensor 120 and a positioning card. The tunnel temperature sensor 120 is distributed in the tunnels under the mine. The tunnel temperature sensor 120 and the control platform 300 are wirelessly connected. Figure 3 The ambient temperature in the tunnel under the mine can be fed back in real time, and the real-time ambient temperature in the tunnel is displayed on the control platform 300. The staff carries a positioning card with them. When the staff enters the tunnel, the positioning card automatically communicates with the control platform 300 wirelessly. The control platform 300 can obtain the position of the positioning card and then obtain the positioning information of the staff.

[0051] Specifically, the tunnel temperature sensors 120 in the tunnel are arranged at intervals, and the coverage range of each tunnel temperature sensor 120 is bounded by the middle position of two adjacent tunnel temperature sensors 120. The area to be cooled is the area where the temperature value fed back by the tunnel temperature sensor 120 is higher than the temperature warning value and where there are staff activities.

[0052] Further, if Figure 1As shown, the ventilation and cooling device includes a traction device, a device base, a cold source 220, a heat exchange device 230 and a ventilation device 240; the traction device is connected to the device base, and the traction device is electrically connected or wirelessly connected to the control platform 300; the cold source 220, the heat exchange device 230 and the ventilation device 240 are arranged on the device base, the heat exchange pipes of the cold source 220 and the heat exchange device 230 are connected through the circulating water pump 250, and the ventilation device 240 is connected to the shell of the heat exchange device 230. Specifically, the cold source 220 is an ice bucket, including an ice adding port 223, the information collection device also includes a cold source detection component, the cold source detection component is arranged in the cold source 220, and the cold source detection component is electrically connected to the control platform 300. When the cold source detection component detects that the water temperature in the ice bucket exceeds the preset temperature value of the cold source, the control platform 300 sends an ice adding prompt message to the staff, and the staff adds ice to the ice bucket through the ice adding port 223, and can also control the working power of the circulating water pump 250 and the ventilation device 240.

[0053] Specifically, Figure 1 and Figure 2 As shown, the cold source 220 also includes a cold source water outlet 221 and a cold source water inlet 222. The heat exchange device 230 includes a shell 231, a guide cover 232, an air outlet 233, a heat exchange coil 236 (i.e., a heat exchange tube), a water side inlet 234, and a water side outlet 235. The heat exchange coil 236 is arranged in the shell 231, the water side inlet 234 and the water side outlet 235 are connected to the heat exchange coil 236, and two guide covers 232 are arranged, and the two guide covers 232 are respectively arranged on both sides of the shell 231, one guide cover 232 connects the shell 231 and the air outlet 233, and the other guide cover 232 connects the ventilation device 240 and the shell 231. The ventilation equipment 240 sends the hot air in the lane into the shell 231 through a guide cover 232 to exchange heat with the water side of the heat exchange coil 236. The hot air after heat exchange becomes cold air, and the cold air flows out from the air outlet 233 through another guide cover 232 and blows directly to the area to be cooled, so as to cool the working environment of the staff in the area to be cooled. The cold source water circulation pipeline includes a water supply pipeline 270 and a return water pipeline 280. The cold source water outlet 221 and the water side inlet 234 are connected through the water supply pipeline 270, and the cold source water inlet 222 and the water side outlet 235 are connected through the return water pipeline 280. In order to provide the fluidity of the circulating water, a circulating water pump 250 is provided on the return water pipeline 280.

[0054] The air guide 232 adopts a cross-sectional contraction design, and the contraction angle is generally 15° to 25°. The cooled wind flow passes through the air guide 232 and is discharged from the air outlet 233 to the area in the well that needs cooling. The air outlet 233 can be connected to an external wind tube. The air guide 232 increases the outlet wind speed by reducing the area of ​​the air outlet 233, strengthens the laminar flow effect of the cooling wind, improves the cooling energy utilization rate, and improves the cooling efficiency.

[0055] Furthermore, the heat exchange coil 236 includes a base tube and fins. The base tube can be made of copper tube or titanium alloy tube. The loop is connected by a U-shaped copper elbow. The design pressure of the tube is 1.0-1.5Mpa. The fin is a machine-stamped corrugated aluminum sleeve with a fin spacing of 2-2.8mm. Under the action of the cold source 220 water in the tube, the temperature of the heat exchange coil 236 is reduced. When the high-temperature airflow passes through the air field between the base tube and the fin, heat exchange occurs with the low-temperature heat exchange coil 236. The airflow temperature is reduced, and the cold source water temperature is increased and circulated and discharged. The shell 231 is made of stainless steel 304 plate and sprayed with insulation material to reduce the heat dissipated outward during the heat exchange process.

[0056] Specifically, because the temperature of the high-temperature airflow is much higher than the surface temperature of the fins and the tube body, according to the heat transfer directionality of the second law of thermodynamics, the low-temperature fins and base tubes in the heat exchange device 230 absorb the heat in the high-temperature airflow, reduce the temperature of the passing airflow, and complete the cooling process. The heat flux density is calculated using the Newton cooling formula:

[0057]

[0058] Where: is the heat flux density of convective heat transfer, W / m2; is the convective heat transfer coefficient between the coil fins and the high-temperature airflow, W / (m2·℃); is the temperature of the fin and base tube surface, °C; is the temperature of the high-temperature air flow in the mine, ℃.

[0059] In addition, the heat transfer rate formula is derived from Fourier's law:

[0060]

[0061] Where: is the heat transfer rate; is the thermal conductivity; is the heat exchange area; , is the temperature of both sides of the heat transfer; is the dielectric thickness.

[0062] It can be seen from the above formula that the base tube and the fins mainly serve to expand the heat exchange contact area, thereby increasing the total heat exchange and transfer rate per unit time.

[0063] Further, if Figure 1As shown, the ventilation device 240 includes a rectifier 243, a main unit 244, blades 241 and a moving wheel 242. The ventilation device 240 is a variable frequency fan. When working normally, under the action of the rectifier 243, the AC power of the power supply is converted into DC power. The main unit 244 drives the moving wheel 242 connected to the blades 241 to rotate, and the generated wind flow is sent to the heat exchange device 230 through the ventilation pipe 260.

[0064] Further, if Figure 1 As shown, the circulating water pump 250 includes a pressure tank 253, a pump head 251, a five-way valve 252 and an operating instrument panel 254, wherein the pressure tank 253 is connected to the pump head 251 via the five-way valve 252, and the operating instrument panel 254 serves the purpose of data display and command control, ultimately achieving the purpose of intelligently changing the circulation speed of the cold source water.

[0065] Furthermore, the cold source detection component is a water temperature monitor 110 .

[0066] In one embodiment, the cold source detection element is placed on the return water pipeline 280 to monitor the temperature of the circulating cold source water and feed the data back to the control platform 300. Figure 1 As shown, the ventilation equipment 240 and the circulating water pump 250 are respectively connected to the control platform 300 through wires. The control platform 300 sends an ice-adding prompt message to the staff based on the feedback information of the cold source detection component. When the cold source detection component detects that the water temperature of the cold source water exceeds the preset temperature value of the cold source, the control platform 300 controls the working power of the circulating water pump 250 and the ventilation equipment 240.

[0067] The water temperature monitor 110 is integrated with a thermistor and an ammeter. The resistance value changes with the temperature, so that the reading of the current flowing through the ammeter changes accordingly, and the preset temperature value of the cold source set in advance is set as the warning threshold. The water temperature monitor 110, the analog-to-digital converter (ADC) and the control platform 300 are connected by wires, and the current fluctuation measured by the ammeter is transmitted to the control platform 300. The control platform 300 has a built-in corresponding control program, and uses the RPi.GPIO library to read the current value converted by the ADC on the Raspberry Pi. When the tunnel temperature value and current value reach the warning threshold, the control platform 300 uses the RPi.GPIO library to control the GPIO pin to turn on the electric control switch of the ventilation equipment 240 and the circulating water pump 250 and adjust the power level, so as to achieve the purpose of intelligent joint regulation.

[0068] Further, if Figure 1As shown, the equipment base includes a guide wheel 211, a support platform 214, a support plate 213 and a traction groove 212. The traction groove 212 can overlap the traction equipment, and the whole set of equipment can be moved underground under the action of the guide wheel 211. The support plate 213 is arranged above the support platform 214, and the guide wheel 211 is arranged below the support platform 214. The support plate 213 is used to support and fix the ventilation equipment 240 to ensure the stable connection between the ventilation equipment 240 and the heat exchange equipment 230.

[0069] Further, in one embodiment, the underground mobile ventilation system includes a remote controller 400, such as Figure 4 As shown, the remote controller 400 and the ventilation and cooling device are wirelessly connected, and the ventilation and cooling device is remotely controlled by the remote controller 400 to move to the area to be cooled.

[0070] Furthermore, the control platform 300 includes a path planning module; the path planning module is used to plan a travel path according to the location information of the area to be cooled and the location information of the ventilation and cooling device, and the control platform 300 is used to control the ventilation and cooling device to move to the area to be cooled according to the travel path. The control platform 300 presets a mine tunnel map, and plans the travel path according to the tunnel map. Specifically, it can be used Algorithm for path planning.

[0071] Further, the ventilation and cooling device includes a visual device, and the visual device and the control platform 300 are electrically connected or wirelessly connected; the visual device is used to identify whether there are obstacles in the travel path, and the control platform 300 is used to control the ventilation and cooling device to stop moving and send an alarm message when it is determined that there are obstacles in the travel path. Specifically, the visual device can be a camera. An image recognition model is set in the control platform 300, which can identify obstacles in the lane that affect the travel of the ventilation and cooling device. The obstacles may be people, tools, sundries or mobile devices. Further, a face recognition algorithm is set in the image recognition model, and the staff can be identified based on the feedback image of the visual device. When the ventilation and cooling device enters the cooling zone and identifies the staff, the ventilation and cooling device is controlled to stop moving and start cooling the cooling zone. It should be noted that when the ventilation and cooling device does not enter the cooling zone, the identified staff will be classified as an obstacle.

[0072] Specifically, in a specific embodiment, Figure 5 As shown, the present application also provides a control method for a mobile ventilation system in a mine, which is applied to the mobile ventilation system in a mine as described above, and the method includes:

[0073] S10: Obtaining temperature information and personnel location information in the mine;

[0074] S20: Determine the area to be cooled according to the temperature information and personnel location information in the mine;

[0075] S30: Control the ventilation and cooling device to move to the area to be cooled, and perform ventilation and cooling on the area to be cooled.

[0076] Specifically, the temperature information is obtained through the tunnel temperature sensor 120 in the tunnel, and the personnel positioning information is obtained through the positioning card carried by the staff.

[0077] Specifically, the method further includes:

[0078] The temperature information in the mine is compared with the temperature warning value, and the area in the mine where the temperature is greater than or equal to the temperature warning value is determined as a high-temperature area; when the personnel positioning information is in the high-temperature area, the high-temperature area is determined as an area to be cooled.

[0079] Specifically, controlling the ventilation and cooling device to move to the area to be cooled, and performing ventilation and cooling on the area to be cooled includes:

[0080] S31: Acquire location information of the area to be cooled and location information of the ventilation and cooling device;

[0081] S32: planning a travel path according to the location information of the area to be cooled and the location information of the ventilation and cooling device;

[0082] S33: Control the ventilation and cooling device to move to the area to be cooled according to the travel path.

[0083] Specifically, according to the location information of the area to be cooled and the location information of the ventilation and cooling device, the preset lane map is used The algorithm plans the travel path.

[0084] Specifically, during the process of moving, the method further includes:

[0085] S331: Obtaining image information fed back by a visual device;

[0086] S332: Identify whether there is an obstacle in the travel path according to the image information;

[0087] S333: When it is determined that there is an obstacle in the travel path, the ventilation and cooling device is controlled to stop moving and send an alarm message.

[0088] Specifically, based on the pre-set image recognition model, obstacles are identified in the path according to the image information fed back by the visual device. The image recognition model is trained based on a large number of images of people, tools, sundries, and mobile devices. When the ventilation and cooling device does not enter the cooling area, the identified staff will be classified as obstacles.

[0089] Specifically, the method also includes: when the ventilation and cooling device moves to the area to be cooled, image information of the visual device is obtained, the staff is identified based on the image information, and when the staff is identified, the ventilation and cooling device is controlled to stop moving and the ventilation and cooling device is turned on to ventilate and cool the area to be cooled. Specifically, a face recognition algorithm is set in the image recognition model, and the staff can be identified based on the feedback image of the visual device. When the ventilation and cooling device enters the area to be cooled and identifies the staff, ventilation and cooling are performed, which effectively improves energy utilization. Specifically, the Haar feature classifier or deep learning model in the OpenCV library is used to detect faces in the image, and the Haar feature classifier is loaded using cv2.CascadeClassifier, and then the detectMultiScale method is used to detect faces.

[0090] The mobile underground mine ventilation system provided in the present application can feed back the real-time wind flow temperature parameters of the underground tunnels to the control platform 300, thereby realizing microclimate monitoring of the tunnels and perception of high-temperature areas. It can not only save manpower monitoring costs, but also quickly and accurately obtain high-temperature warnings to intelligently adjust the power of the ventilation equipment 240 and the circulating water pump 250, control the operation of the ventilation and cooling device, and adjust the cooling effect to ensure the ventilation temperature requirements of the working surface of the underground mine tunnels.

[0091] Furthermore, the present application can realize convective heat exchange between high-temperature airflow and the heat exchange device 230. The heat exchange coil 236 inside the heat exchange device 230 adopts fin-type extension, which greatly increases the heat exchange area between the two and improves the heat exchange efficiency.

[0092] Furthermore, the present application can realize multiphase heat transfer between solid (ice)-liquid (water)-gas (wind flow).

[0093] Furthermore, the present application utilizes the high melting heat of ice medium during phase change to absorb heat and cool the circulating cold source water. The phase change melting heat of ice is 334 J / g, the cold output is large, the acquisition of the cold source 220 is stable, safe, green and energy-saving, and does not pollute the underground microenvironment.

[0094] Furthermore, the system of the present application has a simple structure, flexible layout, convenient assembly, low use cost and maintenance cost, stable and controllable cold source 220, high cooling efficiency, wide application range, and can automatically identify the area to be cooled, and only cools the lanes where people are working, thereby saving energy and reducing costs.

[0095] In the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless otherwise clearly defined.

[0096] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The description and examples are to be considered exemplary only.

[0097] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mobile ventilation system for underground mines, characterized in that: include: An information collection device is used to obtain temperature information and personnel location information in the mine. The information collection device includes a tunnel temperature sensor and a positioning card. The tunnel temperature sensor is distributed in the mine tunnel, and the personnel carry the positioning card with them. A ventilation and cooling device, which is arranged in a mine tunnel and includes a visual device, wherein the visual device is electrically connected or wirelessly connected to a control platform; A control platform, the information collection device and the ventilation and cooling device are electrically connected or wirelessly connected to the control platform respectively, the control platform is used to determine the area to be cooled according to the temperature information and personnel location information in the mine, the control platform is used to control the ventilation and cooling device to move to the area to be cooled, and to obtain image information of the visual device, identify the staff according to the image information, and when the staff is identified, control the ventilation and cooling device to stop moving and start the ventilation and cooling device to ventilate and cool the area to be cooled.

2. A mobile ventilation system for underground mines according to claim 1, characterized in that: The ventilation and cooling device comprises a traction device, a device base, a cold source, a heat exchange device and a ventilation device; The traction device is connected to the device base, and the traction device is electrically connected or wirelessly connected to the control platform; The cold source, the heat exchange device and the ventilation device are arranged on the device base, the heat exchange pipes of the cold source and the heat exchange device are connected through a circulating water pump, and the ventilation device is connected to the shell of the heat exchange device.

3. A mobile ventilation system for underground mines according to claim 2, characterized in that: The information collection device further comprises a cold source detection component, which is arranged in the cold source or on a cold source water circulation pipeline; The cold source detection component, the ventilation equipment and the circulating water pump are electrically connected to the control platform respectively.

4. A mobile ventilation system for underground mines according to claim 1, characterized in that: The control platform includes a path planning module; The path planning module is used to plan a travel path according to the location information of the area to be cooled and the location information of the ventilation and cooling device, and the control platform is used to control the ventilation and cooling device to move to the area to be cooled according to the travel path.

5. The mobile ventilation system for underground mines according to claim 1, characterized in that: The visual device is used to identify whether there is an obstacle in the travel path, and the control platform is used to control the ventilation and cooling device to stop moving and send an alarm message when it is determined that there is an obstacle in the travel path.

6. A control method for a mobile ventilation system in a mine, characterized in that: Applied to a mobile ventilation system for an underground mine as claimed in any one of claims 1 to 5, the method comprises: Obtain temperature information and personnel location information in the mine; Determine the area to be cooled according to the temperature information and personnel location information in the mine; The ventilation and cooling device is controlled to move to the area to be cooled, and ventilates and cools the area to be cooled.

7. A control method for a mobile ventilation system in a mine according to claim 6, characterized in that: Controlling the ventilation and cooling device to move to the area to be cooled, and performing ventilation and cooling on the area to be cooled, comprising: Acquire the location information of the area to be cooled and the location information of the ventilation and cooling device; Planning a travel path according to the location information of the area to be cooled and the location information of the ventilation and cooling device; The ventilation and cooling device is controlled to move to the area to be cooled according to the travel path.

8. A control method for a mobile ventilation system in a mine according to claim 6, characterized in that: The ventilation and cooling device includes a visual device, and the method further includes: Acquiring image information fed back by the visual device; Identify whether there is an obstacle in the travel path according to the image information; When it is determined that there is an obstacle in the travel path, the ventilation and cooling device is controlled to stop moving and send an alarm message.

9. A control method for a mobile ventilation system in a mine according to claim 6, characterized in that: The temperature warning value is set in the control platform, and the method further includes: Comparing the temperature information of the mine with the temperature warning value, determining that an area in the mine where the temperature is greater than or equal to the temperature warning value is a high temperature area; When the personnel location information is located in the high temperature area, the high temperature area is determined as the area to be cooled.

Images