Intelligent walking air guide device and control method thereof

Abstract

The present invention discloses an intelligent walking air guide device and a control method thereof, the device comprising: an air guide fan, an air guide plate, a retractable column, a rotating component, an information collection device and an intelligent control device. The air guide plate is connected to the air guide fan; the retractable column is connected to the air guide plate, and is used to adjust the height of the air guide plate and the inclination angle of the air 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 air guide fan and the operating equipment; the intelligent control device is connected to the retractable column, the rotating component and the air guide fan, and is used to control the rotation of the rotating component according to the current distance, and to control the air guide fan to adjust the air volume. The present invention realizes intelligent walking air guiding, improves sewage discharge efficiency, and reduces energy consumption. The present invention can be widely used in the field of mine ventilation technology.

Description

Technical Field

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

[0002] Large-section mines in underground mines are typically mined in layers or strips. Part of the entire section generates dust, toxic and harmful gases, and heat, requiring ventilation to promptly remove these gases and heat to ensure a safe and comfortable working environment. Existing methods for guiding air in large-section mines rely on fixed air guides. However, these guides need to be manually moved and adjusted as production changes, making timely air guidance difficult and wastewater removal inefficient. Without air control, wastewater removal requires increasing wind speed, 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 sewage discharge efficiency and reduces energy consumption.

[0005] In one aspect, an embodiment of the present invention provides an intelligent walking wind guide device, comprising:

[0006] Air guide fan;

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

[0008] A retractable column connected to the wind deflector for adjusting the height and inclination angle of the wind deflector;

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

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

[0011] An intelligent control device 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.

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

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

[0014] Air inlet;

[0015] a blower fan, the blower fan being 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 embodiment of the present invention provides an intelligent walking air guide device comprising an air guide fan, an air guide plate, a retractable column, a rotating component, an information collection device, and an intelligent control device. The air guide plate is connected to the air guide fan; the retractable column is connected to the air guide plate and is used to adjust the height and inclination angle of the air guide plate; the rotating component is connected to the retractable column and is used to control the movement of the 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; and the intelligent control device is connected to the retractable column, the rotating component, and the air guide fan and is used to control the rotation of the rotating component and the air guide fan to adjust the air volume based on the current distance, thereby achieving intelligent walking air 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] Calculating the wind speed at the outlet 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 width of the air guide fan outlet;

[0025] 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 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] Calculating a target distance between the air guide fan and the operating equipment based on the air guide fan outlet width, the air guide fan outlet wind speed, the air density, the stope wind speed, 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 wind deflector operating parameters according to the stope cross-sectional height and the stope cross-sectional 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 wind speed at the outlet 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 width of the air guide fan outlet includes:

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

[0033] Calculating 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 side pressure of the air curtain, the radius, and the width of the air duct outlet.

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

[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 is calculated according to the air volume constraint, the air velocity at the air duct outlet, the air duct outlet width, and the air duct 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. 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 site cross-sectional height, mining site cross-sectional width and the current distance between the air guide fan and the operating equipment, then calculates the air guide plate working parameters according to the mining site cross-sectional height and mining site cross-sectional width, calculates 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 calculates 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, 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 site 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 in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through 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 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 application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0046] Figure 1 This is a 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 applied to ventilation of a large-section stope according to an embodiment of the present invention;

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

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

[0050] Figure 5 This is a schematic diagram of a stope air guide according to an embodiment of the present invention;

[0051] Figure 6 This 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 with reference to 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 merely examples of devices and methods consistent with some aspects of the embodiments of the present application as detailed in the appended claims.

[0053] It will be understood that the terms "first", "second", etc. used in this application may be used herein to describe various concepts, but unless otherwise specified, these concepts are not limited by these terms. These terms are only used to distinguish one concept from another. For example, without departing from the scope of the embodiments 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 may be interpreted as "at the time of" or "when" or "in response to determining".

[0054] The terms "at least one", "plurality", "each", "any", etc. used in this application include "at least one", "two" or more, "plurality" or "each", "any" or "any one", "each" or "any one" as used herein.

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

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

[0057] Air guidance: This refers to the use of specific devices or structures to guide airflow in a predetermined direction. 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 mines are generally mined in layers up and down or in strips left and right. Dust, toxic and harmful gases and heat are not generated on the entire section. Underground mine mines need to be ventilated. The wind can be guided to the working and personnel-intensive areas through wind guides. Through-flow ventilation is usually used to discharge dust, toxic and harmful gases and heat in a timely manner to ensure the safety and comfort of the working environment. Whether the dust, toxic and harmful gases and heat generated in the mine can be discharged in a timely manner depends mainly on the size of the wind speed. Large-section mines have the characteristics of large ventilation sections and low wind speeds. Dust, toxic and harmful gases and heat generated at the working points of the mine are often difficult to be discharged in a timely manner. The existing wind guide method for large-section mines 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 a timely manner, the degree of automation is low, the workload of workers is high, it is not practical, 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 demand of 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, and calculating the distance. The embodiment of the present invention has the characteristics of strong adaptability and high reliability. It can guide the wind flow in the mine to areas with dense personnel 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 exhaust efficiency of the mine, improve the working environment of the mine, and provide protection for the safe production of the mine. At the same time, it can reduce mining energy consumption, improve the automation and intelligence level 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 with reference to 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] Air guide plate 102, which 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] Rotating component 104, which is connected to the telescopic column and is used to control the movement of the device;

[0066] 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 embodiments of the present invention includes an air guide fan 101, an air 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 air guide fan 101 is elongated in shape, with a width equal to or similar to that of the air guide plate, and can be mounted at the front end of the air guide plate. The air guide fan can include an air inlet 107, a blower fan, and an air outlet 108. The blower fan is connected to the air inlet, and the air outlet is connected to the blower fan. The air outlet has a gradually tapering structure. By turning on the air guide fan, an air curtain is formed, extending the air guide plate and effectively preventing collisions between the mining equipment traveling below and the air guide device. The air guide fan has multiple gears, and the wind speed or air volume of the air guide fan can be adjusted according to actual needs to form the desired wind curtain size. The air outlet adopts a tapering structure, gradually narrowing from the inside out to increase the outlet wind speed 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 multiple sub-plates. The wind guide plate can be spliced ​​together by multiple 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 deflector, and the height and inclination angle of the air deflector can be adjusted by the retractable columns. There are four retractable columns, two of which can be installed in front of the air deflector and two in the back of the air deflector to support the air deflector and the air deflector.

[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 can be used to collect the current distance between the air guide and the operating equipment. The information collection device can include an information collector, camera, infrared sensor, or radar. Two information collection devices can be installed on each of the two retractable columns in front of the air guide, for a total of two, to collect the position and distance information between the air guide 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 and the air guide fan to adjust the air volume according to the current distance. The intelligent control device may include a controller. The intelligent control device can 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, thereby realizing the automatic follow-up movement of the air guide device.

[0074] In some embodiments, the air guide device of this embodiment is applied to a plane scene of large-section stope ventilation, for example, Figure 2 As shown in the figure, whether good results can be achieved in application depends mainly on the following key technical parameters: air deflector size, air deflector height, air deflector angle, air deflector gear position, and the distance between the air deflector and the work 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 area where toxic and harmful gases, dust and heat are generated is also located near the mining equipment. The air guide device intelligently follows the mining equipment as it moves forward and maintains a certain distance from the mining equipment. The air guide device continuously concentrates the air flow to the vicinity of the mining equipment, quickly discharges toxic and harmful gases, dust and heat, and provides fresh air and a good working environment for the workers. More examples of three-dimensional scenes in which the air guide device of this embodiment is applied to ventilation of a large-section mine are shown below. Figure 3 shown.

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

[0076] In some embodiments, the air guide device of this embodiment can guide the airflow of a large-section 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 airflow, improving the working environment of the mine, 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 mine section, and has strong adaptability. The air guide device of this embodiment has an automatic follow-up walking function, which on the one hand can ensure the air guide efficiency of the air guide device, and on the other hand improves the automation and intelligence of the mine ventilation, reducing the labor intensity of workers.

[0077] Figure 4 This 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: Obtain the stope section height, stope section width, and the current distance between the air guide fan and the operating equipment;

[0079] Step S202: Calculate the working parameters of the wind deflector according to the stope section height and the stope section width, where the wind deflector working parameters include the wind deflector height and the wind deflector inclination angle;

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

[0081] Step S204, calculating the current air volume of the air guide fan according to the air guide plate height, the air guide fan air guide height, the stope section height, 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: Calculate the target distance between the air guide fan and the operating equipment based on the air guide fan outlet width, the air guide fan outlet wind speed, the air density, the stope wind speed, 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 air guidance, improve sewage discharge efficiency, and reduce energy consumption.

[0085] In step S201 of some embodiments, the stope cross-sectional height and width can be obtained from a stope database, and the current distance between the air guide fan and the operating equipment can be obtained from an information collection device. The stope cross-sectional height, width, and current distance between the air guide fan and the operating equipment can also be obtained through other methods, without limitation.

[0086] In some embodiments, in step S202, calculating the working parameters of the air guide plate according to the stope cross-sectional height and the stope cross-sectional width may include but is not limited to the following steps:

[0087] Calculate the number of wind deflectors based on the stope section height and width;

[0088] Calculate the working parameters of the wind deflectors based on the stope section height, stope section width and number of wind deflectors.

[0089] In some embodiments, the mine wind guide is as follows: Figure 5 As shown, mining equipment generates heat during mining, dust is generated directly in front of the mining equipment, and no dust or heat is generated in the upper section. The number of air deflectors can be calculated based on the stope section height and width. Sub-plates (also called spliced ​​air deflectors) can be selected based on the size of the stope section, and a safety gap of 10cm-20cm is maintained between the sub-plates and the stope roof, and between the sub-plates 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 located at the bottom 8m×4m (width×height), three 7.6m×4.0m (width×height) sub-plates can be selected. After splicing the three sub-plates, the overall size is 7.6m×12.0m. Then, the air deflector operating parameters are calculated based on the stope section height, stope section width, and number of air deflectors. The air deflector operating parameters may include the air deflector height and the air deflector inclination angle. Assemble the sub-plates, retractable columns, rotating parts (or tires), etc. (excluding the air guide fan), and set the air guide plate height and the air guide plate inclination angle of the air guide plate during the assembly process. The air guide plate height and the air guide plate inclination angle are adjusted by adjusting the length of the retractable columns. The air guide plate height can be set according to the height of the mining section. The angle θ between the air guide plate and the horizontal direction (i.e., the air guide plate inclination angle) 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 air guide plate height can be set to 11.8m (keeping a safety gap of 20cm from the top plate), and the angle between the air guide plate and the horizontal direction (i.e., the air guide plate inclination angle) can be set to 30°. Therefore, 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 based on the air density, the wind speed in the stope, the inclination angle of the air guide plate, the air guide height of the air guide fan, and the width of the air guide fan outlet, 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] 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;

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

[0094] In some embodiments, the function of the air guide fan is to extend the air guide plate by forming an air curtain. The air guide fan can be selected based on 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 lateral pressure of the air curtain can be calculated based on the air density and the wind speed in the mining area. The calculation formula of the lateral 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, based on 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 wind guide fan jet axis is calculated. The calculation formula for the radius of the arc of the wind guide fan jet axis is: Where 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: Where v0 is the wind speed at the induced draft fan outlet, and b0 is the induced draft fan outlet width. It is understood that when the induced draft fan height h′0, the induced draft fan outlet width b0, the guide plate inclination angle θ, and the stope wind speed v are all known, the induced draft fan outlet wind speed v0 can be calculated.

[0095] In some embodiments, in step S204, the current air volume of the air guide fan is calculated based on the air guide plate height, the air guide fan air guide height, the stope cross-section 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, stope section height and target air volume;

[0098] Calculate the current air volume of the ducted fan based on the air volume constraint, ducted fan outlet wind speed, ducted fan outlet width, and ducted fan width.

[0099] In some embodiments, the effective wind guide height can be calculated based on the wind guide plate height and the wind guide fan wind guide height, wherein the calculation formula of the effective wind 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 fan wind guide height. Then, based on the effective wind guide height, the stope section height, and the target wind volume, the wind volume constraint is constructed. The wind volume constraint expression is: Where, Q0 is the current air volume of the induced draft fan, h z is the effective wind guide height, H is the cross-section height of the stope, Q m is the target air volume. Finally, the current air volume of the air duct is calculated based on the air volume constraint, the air duct outlet wind speed, the air duct outlet width and the air duct width, where the calculation formula for the current air volume of the air duct is: Q0=w0b0v0, where Q0 is the current air volume of the air duct, 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 as or similar to the width of the air guide plate. In order to avoid airflow circulation in the air duct, after calculating the current air volume of the air duct, it can be verified so that the current air volume of the air duct meets the air volume constraint. If the current air volume of the air duct 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 wind guide plate inclination angle) θ can be set to 30°, the wind guide height h′0 of the wind guide fan is 2m, the wind guide fan outlet width b0 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 wind guide fan width w0 is 7.6m, the wind guide fan outlet wind speed v0 is 2.3m / s, and the wind guide fan current air volume Q0 is 3.5m 3 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, key operating parameters are determined and set according to actual conditions, including the gear position of the induced draft fan and the target distance between the induced draft fan and the operating equipment. The gear position of the induced draft fan can be determined by the outlet wind speed of the induced draft fan, so as to meet the induced draft fan outlet wind speed v0 requirement. The target distance between the induced draft fan and the operating equipment is then calculated based on the outlet width of the induced draft fan, the outlet wind speed of the induced draft fan, the air density, the wind speed in the mining area, and the inclination angle of the wind guide plate. The calculation formula for the target distance between the induced draft fan and the operating equipment is: Where L is the target distance between the ductor and the operating equipment, b0 is the ductor outlet width, v0 is the ductor outlet wind speed, ρ is the air density, v is the stope wind speed, and θ is the ductor plate inclination angle. For example, when the ductor plate inclination angle θ is 30°, the ductor outlet width b0 is 0.2m, the ductor outlet wind speed v0 is 2.3m / s, and the stope wind speed v is 0.25m / s, the target distance L between the ductor and the operating equipment can be calculated to be 7.5m.

[0101] In some embodiments, in step S206, 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, which may include but is not limited to the following steps:

[0102] Generate a walking signal based on the current distance and the target distance, and the walking signal is used to control the rotation of the rotating part;

[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 generated based on the current distance and the target distance, wherein the walking signal is used to control the rotation of the rotating component. At the same time, an air volume adjustment signal is generated based on the target air volume of the air duct and the current air volume of the air duct, wherein the air volume adjustment signal is used to control the air duct to adjust the air volume. For example, the current distance between the air duct and the operating equipment is collected by an information collection device and transmitted to an intelligent control device. The intelligent control device analyzes and compares the target distance and the current distance, and controls the rotating component to achieve the movement of the device, thereby maintaining the optimal distance between the air duct device and the front working surface and the area with dense personnel. At the same time, the current air volume of the air duct can be increased or decreased according to the target air volume of the air duct 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 the wind guide plates (i.e., sub-plates), including the 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 plates, the wind guide fan outlet width or the wind guide fan outlet wind speed, etc., operate the wind guide device, thereby realizing intelligent walking wind guidance.

[0106] In some embodiments, this embodiment features strong adaptability and high reliability. It can direct wind flow from a mine site to densely populated areas and areas where toxic and harmful gases, dust, and heat are generated. This significantly improves the efficiency of wind flow in removing pollutants and heat, improves the mine's working environment, and provides strong guarantees for safe production in the mine. Furthermore, it can reduce mining energy consumption and 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, and then calculate the air guide plate working parameters according to the mining site cross-sectional height and mining site cross-sectional width, and 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, and 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, and 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, and 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 are not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and essence of the present invention should be within the scope of the present invention.

Claims

1. A control method for an intelligent walking air guide device, characterized in that: The following steps are involved: Obtain 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; Calculating the wind speed at the outlet 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 width of the air guide fan outlet; 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 stope, the target air volume, the air guide fan outlet wind speed, the air guide fan outlet width, and the air guide fan width; Calculating a target distance between the air guide fan and the operating equipment based on the air guide fan outlet width, the air guide fan outlet wind speed, the air density, the stope wind speed, and the inclination angle of the air guide plate; Perform walking air guide 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; The calculation of the working parameters of the wind deflector 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; Calculating the working parameters of the air deflectors according to the stope section height, the stope section width and the number of the air deflectors; The intelligent walking wind guide device includes: An air guide fan, the air guide fan being in a flat and long shape; the air guide fan comprising an air inlet, a blower fan and an air outlet; the blower fan being connected to the air inlet; the air outlet being connected to the blower fan, and the air outlet having a gradually narrowing structure; An air guide plate connected to the air guide fan; A retractable column connected to the wind deflector for adjusting the height and inclination angle of the wind deflector; A rotating component connected to the retractable column and used to control the movement of the device; An information collection device connected to the retractable column and used to collect the current distance between the air guide fan and the operating equipment; An intelligent control device 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.

2. The method according to claim 1, characterized in that Calculating the wind speed at the outlet 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 width of the air guide fan outlet includes: Calculating the lateral pressure of the air curtain according to the air density and the wind speed in the mining area; Calculating 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 side pressure of the air curtain, the radius, and the width of the air duct outlet.

3. The method according to claim 1, characterized in that Calculating the current air volume of the air guide fan according to the air guide plate height, the air guide fan air guide height, the stope section height, the target air volume, the air guide fan outlet wind speed, the air guide fan outlet width, and the air guide fan width includes: 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 is calculated according to the air volume constraint, the air velocity at the air duct outlet, the air duct outlet width, and the air duct width.

4. The method according to claim 1, wherein 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: 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. The air volume adjustment signal is used to control the air duct fan to adjust the air volume.

5. The method according to claim 1, wherein The air guide plate includes a plurality of sub-plates.

6. The method according to claim 1, characterized in that The number of the retractable columns is 4.

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