Intelligent walking air guide device and control method thereof

Abstract

The invention discloses an intelligent walking air guiding device and a control method thereof. The intelligent walking air guiding device comprises an air guiding machine, an air guiding plate, a telescopic stand column, a rotating component, information collecting equipment and intelligent control equipment. The air guide plate is connected with the air guide fan; the telescopic stand column is connected with the air guide plate and used for adjusting the height and the inclination angle of the air guide plate. The rotating part is connected with the telescopic stand column and used for controlling the device to walk. The information acquisition equipment is connected with the telescopic upright post and is used for acquiring the current distance between the air guide fan and operation equipment; the intelligent control device is connected to the telescopic stand column, the rotating component and the air guide fan and used for controlling the rotating component to rotate according to the current distance and controlling the air guide fan to adjust the air volume. Intelligent walking air guiding is achieved, the pollution discharge efficiency is improved, and energy consumption is reduced. The device can be widely applied to the technical field of mine ventilation.

Description

Technical Field

[0001] The present invention relates to the technical field of mine ventilation, and in particular to an intelligent walking air guiding device and a control method thereof. Background Art

[0002] Large-section mines in underground mines are usually mined in layers or strips. Dust, toxic and harmful gases, and heat are not generated in the entire section, so ventilation is required to discharge dust, toxic and harmful gases, and heat in a timely manner to ensure a safe and comfortable working environment. The existing large-section mine wind guide method is to set up fixed wind guide plates for wind guide, but the wind guide plates need to be moved and adjusted manually as production changes, making it difficult to guide air in time and the sewage discharge efficiency is low. If wind guide control is not performed, it is necessary to increase the wind speed for sewage discharge, which consumes a lot of energy.

[0003] In summary, the technical problems existing in the relevant technologies need to be improved. Summary of the invention

[0004] The embodiment of the present invention provides an intelligent walking air guide device and a control method thereof, which effectively improves the sewage discharge efficiency and reduces energy consumption.

[0005] On the one hand, an embodiment of the present invention provides an intelligent walking wind guide device, including:

[0006] Air guide fan;

[0007] An air guide plate, wherein the air guide plate is connected to the air guide fan;

[0008] A retractable column, the retractable column is connected to the wind deflector and is used to adjust the height and inclination angle of the wind deflector;

[0009] A rotating component, the rotating component is connected to the retractable column and is used to control the movement of the device;

[0010] An information collection device, the information collection device is connected to the retractable column and is used to collect the current distance between the air guide fan and the operating equipment;

[0011] An intelligent control device is connected to the retractable column, the rotating component and the air guide fan, and is used to control the rotating component to rotate according to the current distance, and control the air guide fan to adjust the air volume.

[0012] In some embodiments, the air guide fan is elongated in shape.

[0013] In some embodiments, the air guide fan comprises:

[0014] Air inlet;

[0015] A blower fan, the blower fan is connected to the air inlet;

[0016] An air outlet is connected to the blower fan, and the air outlet has a gradually shrinking structure.

[0017] In some embodiments, the air guide plate includes a plurality of sub-plates.

[0018] In some embodiments, the number of the retractable columns is 4.

[0019] The beneficial effects of the present invention are as follows:

[0020] An intelligent walking wind guide device provided by an embodiment of the present invention includes a wind guide fan, a wind guide plate, a retractable column, a rotating component, an information collection device, and an intelligent control device. The wind guide plate is connected to the wind guide fan; the retractable column is connected to the wind guide plate, and is used to adjust the height and inclination angle of the wind guide plate; the rotating component is connected to the retractable column, and is used to control the walking of the device; the information collection device is connected to the retractable column, and is used to collect the current distance between the wind guide fan and the operating equipment; the intelligent control device is connected to the retractable column, the rotating component, and the wind guide fan, and is used to control the rotating component to rotate according to the current distance, and control the wind guide fan to adjust the air volume, thereby realizing intelligent walking wind guide, improving sewage discharge efficiency, and reducing energy consumption.

[0021] On the other hand, an embodiment of the present invention provides a control method for an intelligent walking wind guide device, comprising the following steps:

[0022] Obtaining the stope section height, stope section width and the current distance between the air guide fan and the operating equipment;

[0023] Calculating the working parameters of the wind deflector according to the stope section height and the stope section width, wherein the working parameters of the wind deflector include the height of the wind deflector and the inclination angle of the wind deflector;

[0024] Calculate the outlet wind speed of the air guide fan according to the air density, the wind speed in the mining area, the inclination angle of the air guide plate, the air guide height of the air guide fan and the outlet width of the air guide fan;

[0025] Calculate the current air volume of the air guide fan according to the height of the air guide plate, the air guide height of the air guide fan, the cross-sectional height of the stope, the target air volume, the air guide fan outlet wind speed, the air guide fan outlet width and the air guide fan width;

[0026] Calculate the target distance between the air guide fan and the operating equipment according to the outlet width of the air guide fan, the outlet wind speed of the air guide fan, the air density, the wind speed of the mining area and the inclination angle of the air guide plate;

[0027] Walking air guiding control is performed according to the current distance, the target distance, the target air volume of the air guide fan and the current air volume of the air guide fan.

[0028] In some embodiments, the calculating of the working parameters of the wind guide plate according to the stope section height and the stope section width includes:

[0029] Calculating the number of air guide plates according to the stope section height and the stope section width;

[0030] The working parameters of the air guide plates are calculated according to the stope section height, the stope section width and the number of the air guide plates.

[0031] In some embodiments, the calculating of the outlet wind speed of the air guide fan according to the air density, the wind speed in the mining area, the inclination angle of the air guide plate, the air guide height of the air guide fan and the outlet width of the air guide fan comprises:

[0032] Calculating the lateral pressure of the air curtain according to the air density and the wind speed in the mining area;

[0033] Calculate the radius of the arc of the jet axis of the air guide fan according to the air guide height of the air guide fan and the inclination angle of the air guide plate;

[0034] The wind speed at the air duct outlet is calculated according to the lateral pressure of the air curtain, the radius and the air duct outlet width.

[0035] In some embodiments, the current air volume of the air guide fan is calculated according to the height of the air guide plate, the air guide height of the air guide fan, the cross-sectional height of the stope, the target air volume, the air guide fan outlet wind speed, the air guide fan outlet width and the air guide fan width, including:

[0036] Calculating an effective air guide height according to the air guide plate height and the air guide fan air guide height;

[0037] Constructing an air volume constraint according to the effective air guide height, the stope section height and the target air volume;

[0038] The current air volume of the air duct fan is calculated according to the air volume constraint, the air velocity at the air duct fan outlet, the air duct fan outlet width and the air duct fan width.

[0039] In some embodiments, the walking air guide control is performed according to the current distance, the target distance, the target air volume of the air guide fan and the current air volume of the air guide fan, including:

[0040] generating a walking signal according to the current distance and the target distance, wherein the walking signal is used to control the rotating component to rotate;

[0041] An air volume adjustment signal is generated according to the target air volume of the air duct fan and the current air volume of the air duct fan, and the air volume adjustment signal is used to control the air duct fan to adjust the air volume.

[0042] The beneficial effects of the present invention are as follows:

[0043] The embodiment of the present invention first obtains the mining field section height, mining field section width and the current distance between the air guide fan and the operating equipment, then calculates the working parameters of the air guide plate according to the mining field section height and mining field section width, calculates the air guide fan outlet wind speed according to the air density, mining field wind speed, air guide plate inclination angle, air guide fan air guide height and air guide fan outlet width, then calculates the current air volume of the air guide fan according to the air guide plate height, air guide fan air guide height, mining field section height, target air volume, air guide fan outlet wind speed, air guide fan outlet width and air guide fan width, calculates the target distance between the air guide fan and the operating equipment according to the air guide fan outlet width, air guide fan outlet wind speed, air density, mining field wind speed and air guide plate inclination angle, finally performs walking air guiding control according to the current distance, target distance, air guide fan target air volume and air guide fan current air volume, so that walking can be controlled by distance calculation to realize intelligent walking air guiding, thereby improving sewage discharge efficiency and reducing energy consumption.

[0044] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0046] Figure 1 This is a schematic structural diagram of an intelligent walking wind guide device according to an embodiment of the present invention;

[0047] Figure 2 This is a schematic diagram of a cross-sectional scene of an air guide device according to an embodiment of the present invention being applied to ventilation of a large-section mining area;

[0048] Figure 3 This is a schematic diagram of a three-dimensional scene in which an air guide device according to an embodiment of the present invention is applied to ventilation of a large-section stope;

[0049] Figure 4 This is a flow chart of a control method applied to an intelligent walking wind guide device according to an embodiment of the present invention;

[0050] Figure 5 This is a schematic diagram of a wind guide in a mining area according to an embodiment of the present invention;

[0051] Figure 6 The present invention is a schematic diagram of the overall process of using an intelligent walking air guide device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the embodiments of the present application. They are only examples of devices and methods consistent with some aspects of the embodiments of the present application as detailed in the attached claims.

[0053] It is understood that the terms "first", "second", etc. used in this application can be used to describe various concepts in this article, but unless otherwise specified, these concepts are not limited by these terms. These terms are only used to distinguish one concept from another concept. For example, without departing from the scope of the embodiment of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if" and "if" as used herein can be interpreted as "at the time of" or "when" or "in response to determination".

[0054] The terms "at least one", "multiple", "each", "any", etc. used in this application, at least one includes one, two or more, multiple includes two or more, each refers to each of the corresponding multiple, and any refers to any one of the multiple.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0056] Before describing the embodiments of the present application in detail, some nouns and terms involved in the embodiments of the present application are first described. The nouns and terms involved in the embodiments of the present application are subject to the following explanations.

[0057] Air guidance: refers to guiding the airflow in a preset direction through a specific device or structure. This technology is widely used in various equipment and systems to achieve more efficient air circulation or temperature control.

[0058] In the related art, large-section mining sites are generally mined in layers or strips. Dust, toxic and harmful gases and heat are not generated in the entire section. Underground mine mining sites need to be ventilated. The wind flow can be guided to the operation and personnel-intensive areas through wind guide. Through wind flow is usually used for ventilation to discharge dust, toxic and harmful gases and heat in time to ensure the safety and comfort of the working environment. Whether the dust, toxic and harmful gases and heat generated in the mining site can be discharged in time depends mainly on the size of the wind speed. Large-section mining sites have the characteristics of large ventilation sections and low wind speeds. Dust, toxic and harmful gases and heat generated at the mining site are often difficult to be discharged in time. The existing wind guide method for large-section mining sites is to set fixed wind guide plates for wind guide. The wind guide plates are manually moved and adjusted as production changes. It has the following disadvantages: it is difficult to adjust in time, the degree of automation is low, the work intensity of workers is high, the practicality is not strong, and the sewage discharge efficiency is low. At the same time, if the problem is solved by simply increasing the wind speed in the mining area, the air volume required for the entire mine will increase greatly, which will greatly increase the ventilation energy consumption of the entire mine and cause an increase in costs.

[0059] In view of this, the intelligent walking air guide device of the embodiment of the present invention is mainly composed of an air guide fan, an air guide plate, a retractable column, a rotating component, an information collection device and an intelligent control device. The method includes the steps of selecting and splicing air guide plates, assembling an automatic walking air guide device, selecting an air guide fan, determining and setting key operating parameters, automatically operating the air guide device, calculating the distance, etc. The embodiment of the present invention has the characteristics of strong adaptability and high reliability, and can guide the wind flow in the mine to densely populated areas and areas where toxic and harmful gases, dust and heat are generated. It can solve the problem that dust, toxic and harmful gases and heat in large-section mines cannot be discharged in time, greatly improve the wind flow discharge and heat discharge efficiency of the mine, improve the working environment of the mine, and provide guarantee for the safe production of the mine. At the same time, it can reduce mining energy consumption, improve the automation and intelligence of mine ventilation, and provide support for green and intelligent mining in large-section mines.

[0060] The following is a detailed explanation of the embodiments of the present application in conjunction with the accompanying drawings:

[0061] like Figure 1 As shown, an embodiment of the present invention provides an intelligent walking wind guide device, comprising:

[0062] Air guide fan 101;

[0063] An air guide plate 102, the air guide plate is connected to the air guide fan;

[0064] A retractable column 103, which is connected to the wind deflector and is used to adjust the height and inclination angle of the wind deflector;

[0065] A rotating component 104, which is connected to the retractable column and is used to control the movement of the device;

[0066] An information collection device 105, which is connected to the retractable column and is used to collect the current distance between the air guide fan and the operating equipment;

[0067] The intelligent control device 106 is connected to the telescopic column, the rotating component and the air guide fan, and is used to control the rotating component to rotate according to the current distance, and control the air guide fan to adjust the air volume.

[0068] In some embodiments, an intelligent walking wind guide device provided by an embodiment of the present invention includes a wind guide fan 101, a wind guide plate 102, a retractable column 103, a rotating component 104, an information collection device 105 and an intelligent control device 106. In some embodiments, the wind guide fan 101 is in a flat and long shape, and the width of the wind guide fan is the same or similar to the width of the wind guide plate, and can be installed at the front end of the wind guide plate. The wind guide fan may include an air inlet 107, a fan and an air outlet 108, wherein the fan fan is connected to the air inlet, the air outlet is connected to the fan fan, and the air outlet has a gradually shrinking structure. By turning on the wind guide fan to form a wind curtain, the extension of the wind guide plate is achieved, and the mining equipment walking below can be effectively prevented from colliding with the wind guide device. The wind guide fan is set with multiple gears, and the wind speed or air volume of the wind guide fan can be adjusted by setting different gears according to actual needs to form the required wind curtain size. The air outlet adopts a shrinking structure, which gradually shrinks from the inside to the outside to increase the wind speed of the air outlet and improve the control range of the wind curtain.

[0069] The wind guide plate 102 is connected to the wind guide fan, wherein the wind guide plate includes a plurality of sub-plates. The wind guide plate can be spliced ​​by the plurality of sub-plates and installed above the wind guide device. The size of the wind guide plate can be controlled by controlling the number of sub-plates.

[0070] The retractable columns 103 are connected to the air guide plate, and the height and inclination angle of the air guide plate can be adjusted by the retractable columns. The number of retractable columns is 4, 2 of which can be installed in front of the air guide device and 2 at the rear of the air guide device to support the air guide plate and the air guide fan.

[0071] The rotating component 104 is connected to the telescopic column. A rotating component is installed under each telescopic column. The device can be controlled to move by the rotating component. The rotating component can include a tire or a rotating wheel.

[0072] The information collection device 105 is connected to the retractable column, and the current distance between the air guide and the operating equipment can be collected through the information collection device. The information collection device can include an information collector, a camera, an infrared sensor or a radar, etc., and one information collection device can be installed on each of the two retractable columns in front of the air guide device, for a total of two, to collect the position distance information between the air guide device and the equipment, personnel or obstacles in front.

[0073] The intelligent control device 106 is connected to the retractable column, the rotating component and the air guide fan. The intelligent control device can control the rotating component to rotate according to the current distance, and control the air guide fan to adjust the air volume. The intelligent control device may include a controller. The intelligent control device may be installed on the retractable column at the rear as the control center of the entire air guide device to control the automatic movement of the air guide device, the angle of the air guide plate or the gear position of the air guide fan, etc. After the information collection device collects the position distance information from the front working surface and transmits it to the intelligent control device, the intelligent control device issues a command to control the tire to move automatically to maintain the optimal distance between the air guide device and the front working surface, so as to realize the automatic follow-up movement of the air guide device.

[0074] In some embodiments, the wind guide device of this embodiment is applied to a plane scene of large-section mine ventilation, for example, Figure 2 As shown in the figure, whether good results can be achieved in the application mainly depends on the following key technical parameters: wind deflector size, wind deflector height, wind deflector angle, wind deflector gear position, and the distance between the wind deflector and the working surface. These key technical parameters can be adjusted according to actual conditions. Figure 2 In the mine, mining equipment is used to crush ore layer by layer from top to bottom. The mine is a large-section mine, and a through wind flow has been formed. The densely populated area is located near the mining equipment, and the toxic and harmful gas, dust and heat generation area is also located near the mining equipment. The wind guide device intelligently follows the mining equipment and keeps a certain distance from the mining equipment. The wind guide device continuously and centrally guides the wind flow to the vicinity of the mining equipment, quickly discharges the toxic and harmful gas, dust and heat, and provides fresh air and a good working environment for the workers. More examples of three-dimensional scenes in which the wind guide device of this embodiment is applied to ventilation of a large-section mine are as follows: Figure 3 shown.

[0075] The beneficial effects of implementing the embodiments of the present invention include: an intelligent walking wind guide device provided by the embodiments of the present invention includes a wind guide fan, a wind guide plate, a retractable column, a rotating component, an information collection device and an intelligent control device. Among them, the wind guide plate is connected to the wind guide fan; the retractable column is connected to the wind guide plate, which is used to adjust the height of the wind guide plate and the inclination angle of the wind guide plate; the rotating component is connected to the retractable column to control the walking of the device; the information collection device is connected to the retractable column to collect the current distance between the wind guide fan and the operating equipment; the intelligent control device is connected to the retractable column, the rotating component and the wind guide fan, which is used to control the rotating component to rotate according to the current distance, and control the wind guide fan to adjust the air volume, thereby realizing intelligent walking wind guidance, improving sewage discharge efficiency and reducing energy consumption.

[0076] In some embodiments, the air guide device of this embodiment can guide the wind flow in a large-section mining area to densely populated areas and areas where toxic and harmful gases, dust and heat are generated, greatly improving the sewage and heat removal efficiency of the wind flow, improving the working environment of the mining area, and reducing mining energy consumption and mining costs. The air guide device of this embodiment can control the air guide range by controlling the size of the air guide plate, the angle of the air guide plate, the height of the air guide plate, the gear position of the air guide fan, etc., and can adapt to changes in the section of the mining area, and has strong adaptability. The air guide device of this embodiment has an automatic follow-up walking function, which can ensure the air guide efficiency of the air guide device on the one hand, and improve the automation and intelligence of the mining area ventilation on the other hand, and reduce the labor intensity of workers.

[0077] Figure 4 is an optional flow chart of a control method for an intelligent walking wind guide device provided in an embodiment of the present application. Figure 4 The method may include but is not limited to steps S201 to S206.

[0078] Step S201, obtaining the stope section height, stope section width and the current distance between the air guide fan and the operating equipment;

[0079] Step S202, calculating the working parameters of the wind deflector according to the height and width of the stope section, the working parameters of the wind deflector including the height and the inclination angle of the wind deflector;

[0080] Step S203, calculating the outlet wind speed of the air guide fan according to the air density, the wind speed in the mining area, the inclination angle of the air guide plate, the air guide height of the air guide fan and the outlet width of the air guide fan;

[0081] Step S204, calculating the current air volume of the air guide fan according to the height of the air guide plate, the air guide height of the air guide fan, the cross-sectional height of the mining area, the target air volume, the air guide fan outlet wind speed, the air guide fan outlet width and the air guide fan width;

[0082] Step S205, calculating the target distance between the air guide fan and the operating equipment according to the outlet width of the air guide fan, the outlet wind speed of the air guide fan, the air density, the wind speed of the mining area and the inclination angle of the air guide plate;

[0083] Step S206: Perform walking air guiding control according to the current distance, the target distance, the target air volume of the air guide fan and the current air volume of the air guide fan.

[0084] Steps S201 to S206 shown in the embodiment of the present application realize intelligent walking wind guidance, improve sewage discharge efficiency and reduce energy consumption.

[0085] In step S201 of some embodiments, the stope section height and the stope section width may be obtained through the stope database, and the current distance between the air guide fan and the operating equipment may be obtained through the information collection device. The stope section height, the stope section width, and the current distance between the air guide fan and the operating equipment may also be obtained through other methods, without limitation thereto.

[0086] In some embodiments, in step S202, the working parameters of the wind guide plate are calculated according to the stope section height and the stope section width, which may include but is not limited to the following steps:

[0087] Calculate the number of wind deflectors according to the height and width of the stope section;

[0088] The working parameters of the wind guide plates are calculated based on the stope section height, stope section width and the number of wind guide plates.

[0089] In some embodiments, the wind guide of the mining area is exemplified as follows: Figure 5 As shown, the mining equipment generates heat during mining, dust is generated in front of the mining equipment, and no dust and heat are generated in the upper part of the section. The number of wind deflectors can be calculated first according to the height and width of the stope section. The sub-plate (also called spliced ​​wind deflector) can be selected according to the size of the stope section, and a safety gap of 10cm-20cm is reserved between the sub-plate and the stope top plate, and between the sub-plate and the mine walls on both sides of the stope. For example, when the stope section is 8m×12m (width×height), and the section generating dust, toxic and harmful gases and heat is 8m×4m (width×height) below, 3 sub-plates of 7.6m×4.0m (width×height) can be selected, and the overall size of the 3 sub-plates after splicing is 7.6m×12.0m. Then, according to the height of the stope section, the width of the stope section and the number of wind deflectors, the working parameters of the wind deflectors are calculated. Among them, the working parameters of the wind deflectors may include the height of the wind deflectors and the inclination angle of the wind deflectors. Assemble the sub-plates, retractable columns, rotating parts (or tires), etc. (excluding air guide fans), etc., and set the height of the air guide plate and the inclination angle of the air guide plate during the assembly process. The height of the air guide plate and the inclination angle of the air guide plate are adjusted by adjusting the length of the retractable columns. The height of the air guide plate can be set according to the height of the mining section, and the angle θ between the air guide plate and the horizontal direction (i.e., the inclination angle of the air guide plate) can be in the range of 15°-45°. For example, when the mining section is 8m×12m (width×height), and the section generating dust, toxic and harmful gases, and heat is 8m×4m (width×height) below, the height of the air guide plate can be set to 11.8m (keeping a safety gap of 20cm with the top plate), and the angle between the air guide plate and the horizontal direction (i.e., the inclination angle of the air guide plate) can be set to 30°, so the effective air guide section of the air guide plate is approximately 8×12×sin30°=48m 2 .

[0090] In some embodiments, in step S203, the wind speed at the outlet of the air guide fan is calculated according to the air density, the wind speed in the mining area, the inclination angle of the air guide plate, the air guide height of the air guide fan and the outlet width of the air guide fan, which may include but is not limited to the following steps:

[0091] Calculate the lateral pressure of the air curtain based on the air density and wind speed in the mining area;

[0092] According to the air guide height of the air guide fan and the inclination angle of the air guide plate, calculate the radius of the arc of the jet axis of the air guide fan;

[0093] Calculate the air velocity at the air duct outlet based on the air curtain's lateral pressure, radius and air duct outlet width.

[0094] In some embodiments, the air guide fan is used to extend the air guide plate by forming an air curtain, and the air guide fan can be selected according to parameters such as the width of the air guide fan, the wind speed and air volume at the outlet of the air guide fan. The side pressure of the air curtain can be calculated based on the air density and the wind speed in the mining area, wherein the calculation formula of the side pressure of the air curtain is: Where P s is the lateral pressure of the air curtain (i.e., the lateral pressure acting on the air curtain, Pa), ρ is the air density (kg / m 3 ), v is the wind speed in the mining area (m / s). Then, according to the wind guide height of the wind guide fan and the inclination angle of the wind guide plate, the radius of the arc of the jet axis of the wind guide fan is calculated. The calculation formula of the radius of the arc of the jet axis of the wind guide fan is: In the formula, R is the radius of the arc of the air duct jet axis, h′0 is the air duct height of the air duct, and θ is the inclination angle of the air duct plate. Finally, the air duct outlet wind speed is calculated based on the side pressure, radius and outlet width of the air curtain. The calculation formula for the air duct outlet wind speed is: In the formula, v0 is the wind speed at the outlet of the air guide fan, and b0 is the outlet width of the air guide fan. It can be understood that when the air guide height h′0 of the air guide fan, the outlet width b0 of the air guide fan, the inclination angle θ of the air guide plate, and the wind speed v in the mining area are all known, the outlet wind speed v0 of the air guide fan can be calculated.

[0095] In some embodiments, in step S204, the current air volume of the air guide fan is calculated according to the air guide plate height, the air guide fan air guide height, the mining field cross-sectional height, the target air volume, the air guide fan outlet wind speed, the air guide fan outlet width and the air guide fan width, which may include but is not limited to the following steps:

[0096] Calculate the effective air guide height based on the air guide plate height and the air guide fan air guide height;

[0097] Construct air volume constraints based on effective air guide height, mining area section height and target air volume;

[0098] The current air volume of the duct fan is calculated based on the air volume constraint, the outlet wind speed of the duct fan, the outlet width of the duct fan and the width of the duct fan.

[0099] In some embodiments, the effective air guide height can be calculated based on the air guide plate height and the air guide fan air guide height, wherein the calculation formula of the effective air guide height is: z =h0+h′0, where h z is the effective wind guide height, h0 is the wind guide plate height, and h′0 is the wind guide height of the wind guide fan. Then, according to the effective wind guide height, the section height of the mining area and the target wind volume, the wind volume constraint is constructed, where the expression of the wind volume constraint is: Where, Q0 is the current air volume of the air guide fan, h z is the effective wind guide height, H is the cross-sectional height of the mining area, Q m is the target air volume. Finally, according to the air volume constraint, the air duct outlet wind speed, the air duct outlet width and the air duct width, the current air volume of the air duct fan is calculated, where the calculation formula for the current air volume of the air duct fan is: Q0=w0b0v0, where Q0 is the current air volume of the air duct fan, w0 is the air duct width, b0 is the air duct outlet width, and v0 is the air duct outlet wind speed. It can be understood that the air duct width w0 can be set to be the same or similar to the width of the air guide plate. In order to avoid airflow circulation of the air duct fan, after calculating the current air volume of the air duct fan, it can be verified so that the current air volume of the air duct fan meets the air volume constraint. If the current air volume of the air duct fan does not meet the air volume constraint, a larger air guide plate can be selected to improve the air guiding efficiency. For example, when the cross section of the mining area is 8m×12m (width×height), and the cross section generating dust, toxic and harmful gases and heat is 8m×4m (width×height) below, the width of the wind guide plate can be set to 7.6m, the angle between the wind guide plate and the horizontal direction (the inclination angle of the wind guide plate) θ is 30°, the wind guide height h′0 of the wind guide fan is 2m, the outlet width b0 of the wind guide fan is 0.2m, and the mining area wind speed v is 0.25m / s. Based on this, the parameters of the wind guide fan that can be selected include: the width w0 of the wind guide fan is 7.6m, the outlet wind speed v0 of the wind guide fan is 2.3m / s, and the current air volume Q0 of the wind guide fan is 3.5m 3 / s. After selecting a suitable air guide fan, the air guide fan can be installed on the intelligent walking air guide device.

[0100] In some embodiments, in step S205, the key operating parameters are determined and set according to the actual situation, including the gear position of the air guide fan and the target distance between the air guide fan and the operating equipment. The gear position of the air guide fan can be determined by the outlet wind speed of the air guide fan so as to meet the outlet wind speed v0 requirement of the air guide fan. Then, the target distance between the air guide fan and the operating equipment is calculated according to the outlet width of the air guide fan, the outlet wind speed of the air guide fan, the air density, the wind speed of the mining area and the inclination angle of the air guide plate, wherein the calculation formula of the target distance between the air guide fan and the operating equipment is: Where L is the target distance between the air guide fan and the operating equipment, b0 is the outlet width of the air guide fan, v0 is the outlet wind speed of the air guide fan, ρ is the air density, v is the wind speed in the mining area, and θ is the inclination angle of the air guide plate. For example, when the inclination angle θ of the air guide plate is 30°, the outlet width b0 of the air guide fan is 0.2m, the outlet wind speed v0 of the air guide fan is 2.3m / s, and the wind speed v in the mining area is 0.25m / s, it can be calculated that the target distance L between the air guide fan and the operating equipment is 7.5m.

[0101] In some embodiments, in step S206, the walking air guiding control is performed according to the current distance, the target distance, the target air volume of the air guide fan and the current air volume of the air guide fan, which may include but is not limited to the following steps:

[0102] A walking signal is generated according to the current distance and the target distance, and the walking signal is used to control the rotating part to rotate;

[0103] An air volume adjustment signal is generated according to the target air volume of the air duct fan and the current air volume of the air duct fan. The air volume adjustment signal is used to control the air duct fan to adjust the air volume.

[0104] In some embodiments, a walking signal can be first generated according to the current distance and the target distance, wherein the walking signal is used to control the rotating component to rotate. At the same time, an air volume adjustment signal is generated according to the target air volume of the air duct fan and the current air volume of the air duct fan, wherein the air volume adjustment signal is used to control the air duct fan to adjust the air volume. Exemplarily, the current distance between the air duct fan and the operating equipment is collected by an information collection device and transmitted to an intelligent control device, which analyzes and compares the target distance and the current distance, and controls the rotating component to realize the walking of the device, thereby maintaining the optimal distance between the air guide device and the front working surface and the area with dense personnel. At the same time, the current air volume of the air duct fan can be increased or decreased according to the target air volume of the air duct fan that needs to be achieved.

[0105] In some embodiments, the overall process of using the intelligent walking wind guide device is as follows: Figure 6 As shown, you can first select and splice wind guide plates (i.e., sub-plates), including size and quantity, assemble the wind guide device, select the wind guide fan according to the mine section height and mine section width, determine and set the key operating parameters of the device, including the inclination angle of the wind guide plate, the wind guide fan outlet width or the wind guide fan outlet wind speed, etc., and operate the wind guide device, thereby realizing intelligent walking wind guiding.

[0106] In some embodiments, this embodiment has the characteristics of strong adaptability and high reliability, and can guide the wind flow in the mine to densely populated areas and areas where toxic and harmful gases, dust and heat are generated, greatly improving the sewage and heat removal efficiency of the wind flow, improving the working environment of the mine, and providing a strong guarantee for the safe production of the mine. At the same time, it can reduce mining energy consumption and mining costs, improve the automation and intelligence of mine ventilation, and provide support for green and intelligent mining in large-section mines.

[0107] The beneficial effects of implementing the embodiments of the present invention include: the embodiments of the present invention first obtain the mining site cross-sectional height, mining site cross-sectional width and the current distance between the air guide fan and the operating equipment, then calculate the air guide plate working parameters according to the mining site cross-sectional height and mining site cross-sectional width, calculate the air guide fan outlet wind speed according to the air density, mining site wind speed, air guide plate inclination angle, air guide fan air guide height and air guide fan outlet width, then calculate the air guide fan current air volume according to the air guide plate height, air guide fan air guide height, mining site cross-sectional height, target air volume, air guide fan outlet wind speed, air guide fan outlet width and air guide fan width, calculate the target distance between the air guide fan and the operating equipment according to the air guide fan outlet width, air guide fan outlet wind speed, air density, mining site wind speed and air guide plate inclination angle, finally perform walking air guiding control according to the current distance, target distance, air guide fan target air volume and air guide fan current air volume, so that walking can be controlled by distance calculation to realize intelligent walking air guiding, thereby improving sewage discharge efficiency and reducing energy consumption.

[0108] The preferred embodiments of the present invention are described above with reference to the accompanying drawings, but the scope of the rights of the present invention is not limited thereto. Any modification, equivalent substitution and improvement made by a person skilled in the art without departing from the scope and essence of the present invention should be within the scope of the rights of the present invention.

Claims

1. An intelligent walking wind guide device, characterized in that: include: Air guide fan; An air guide plate, wherein the air guide plate is connected to the air guide fan; A retractable column, the retractable column is connected to the wind deflector and is used to adjust the height and inclination angle of the wind deflector; A rotating component, the rotating component is connected to the retractable column and is used to control the movement of the device; An information collection device, the information collection device is connected to the retractable column and is used to collect the current distance between the air guide fan and the operating equipment; An intelligent control device is connected to the retractable column, the rotating component and the air guide fan, and is used to control the rotating component to rotate according to the current distance, and control the air guide fan to adjust the air volume.

2. The intelligent walking wind guide device according to claim 1, characterized in that: The air guide fan is in a flat and long shape.

3. The intelligent walking wind guide device according to claim 1, characterized in that: The air guide fan comprises: Air inlet; A blower fan, the blower fan is connected to the air inlet; An air outlet is connected to the blower fan, and the air outlet has a gradually shrinking structure.

4. The intelligent walking wind guide device according to claim 1, characterized in that: The air guide plate includes a plurality of sub-plates.

5. The intelligent walking wind guide device according to claim 1, characterized in that: The number of the retractable columns is 4.

6. A control method for the intelligent walking wind guide device according to any one of claims 1 to 5, characterized in that: The following steps are involved: Obtaining the stope section height, stope section width and the current distance between the air guide fan and the operating equipment; Calculating the working parameters of the wind deflector according to the stope section height and the stope section width, wherein the working parameters of the wind deflector include the height of the wind deflector and the inclination angle of the wind deflector; Calculate the outlet wind speed of the air guide fan according to the air density, the wind speed in the mining area, the inclination angle of the air guide plate, the air guide height of the air guide fan and the outlet width of the air guide fan; Calculate the current air volume of the air guide fan according to the height of the air guide plate, the air guide height of the air guide fan, the cross-sectional height of the stope, the target air volume, the air guide fan outlet wind speed, the air guide fan outlet width and the air guide fan width; Calculate the target distance between the air guide fan and the operating equipment according to the outlet width of the air guide fan, the outlet wind speed of the air guide fan, the air density, the wind speed of the mining area and the inclination angle of the air guide plate; Walking air guiding control is performed according to the current distance, the target distance, the target air volume of the air guide fan and the current air volume of the air guide fan.

7. The method according to claim 6, characterized in that The calculating of the working parameters of the wind guide plate according to the stope section height and the stope section width includes: Calculating the number of air guide plates according to the stope section height and the stope section width; The working parameters of the air guide plates are calculated according to the stope section height, the stope section width and the number of the air guide plates.

8. The method according to claim 6, characterized in that The method of calculating the outlet wind speed of the air guide fan according to the air density, the wind speed in the mining area, the inclination angle of the air guide plate, the air guide height of the air guide fan and the outlet width of the air guide fan comprises: Calculating the lateral pressure of the air curtain according to the air density and the wind speed in the mining area; Calculate the radius of the arc of the jet axis of the air guide fan according to the air guide height of the air guide fan and the inclination angle of the air guide plate; The wind speed at the air duct outlet is calculated according to the lateral pressure of the air curtain, the radius and the air duct outlet width.

9. The method according to claim 6, characterized in that The current air volume of the air guide fan is calculated according to the height of the air guide plate, the air guide height of the air guide fan, the cross-sectional height of the mining area, the target air volume, the air speed at the outlet of the air guide fan, the outlet width of the air guide fan and the width of the air guide fan, including: Calculating an effective air guide height according to the air guide plate height and the air guide fan air guide height; Constructing an air volume constraint according to the effective air guide height, the stope section height and the target air volume; The current air volume of the air duct fan is calculated according to the air volume constraint, the air velocity at the air duct fan outlet, the air duct fan outlet width and the air duct fan width.

10. The method according to claim 6, characterized in that The walking air guiding control is performed according to the current distance, the target distance, the target air volume of the air guide fan and the current air volume of the air guide fan, including: generating a walking signal according to the current distance and the target distance, wherein the walking signal is used to control the rotating component to rotate; An air volume adjustment signal is generated according to the target air volume of the air duct fan and the current air volume of the air duct fan, and the air volume adjustment signal is used to control the air duct fan to adjust the air volume.

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