Method for determining process parameters of a ventilation and dust removal system for a fast excavation face of an integrated excavation-anchor machine

Abstract

The present application relates to a kind of excavating anchor integrated machine fast excavation working face ventilation dust removal system process parameter determination method, comprising the following steps: S1, establish field simulation entity three-dimensional physical model;S2, after grid division, grid independence verification experiment is carried out;S3, the numerical simulation experiment of different ventilation conditions influence air curtain formation is carried out, the influence of different ventilation conditions on dustproof air curtain is compared and analyzed, and the dustproof air curtain formation condition is obtained;S4, the numerical simulation experiment of different ventilation conditions on the dust concentration distribution of fast excavation working face is carried out, combined with step S3, obtain the key process parameter value under the best dust-settling effect of fast excavation working face ventilation dust removal system;S5, field application verification and correction, wherein different ventilation conditions refer to ventilation dust removal system pressure suction ratio, different distance between axial air outlet of self-adaptive air control dust device and head-on, axial radial air outlet ratio;By determining the best process parameter, improve the effect of dust control of fast excavation working face.

Description

Method for determining process parameters of ventilation and dust removal system in fast excavation face of integrated tunneling and anchoring machine Technical Field

[0001] This invention belongs to the field of coal mine dust control technology, and relates to a method for determining key process parameters of a ventilation and dust control system for effectively controlling dust in the rapid tunneling face of a roadheader. By determining the optimal process parameters, the dust control effect at the rapid tunneling face is improved. Background Technology

[0002] In recent years, with the continuous development of science and technology and the continuous improvement of the R&D capabilities of mechanized equipment, coal mining equipment has also been rapidly upgraded. Traditional fully mechanized tunneling faces have slow tunneling speeds, but the emergence of new integrated roadheader-anchor machines has completely solved this problem. However, due to the use of one-time roadway formation technology, the integrated roadheader-anchor machine has a large drum cutting area, resulting in high dust intensity and a wide dust generation range. Furthermore, because the integrated roadheader-anchor machine is large, occupying more than 80% of the entire roadway cross-section, traditional dust removal methods are difficult to implement. Under the influence of the high-speed return airflow at the face, high-concentration dust rapidly spreads and diffuses, seriously polluting the working environment of the tunneling face.

[0003] According to on-site measurements, without any dust control measures, the instantaneous dust concentration at the semi-coal-rock tunnel rapid excavation face can reach 2000 mg / m³. 3 The high concentration of dust pollutes the working environment, seriously affecting the physical and mental health of on-site personnel. Moreover, the limited visibility also poses serious safety hazards to on-site personnel.

[0004] Therefore, long-pressure short-extraction ventilation and dust removal systems are often used for dust control. However, due to the lack of proper matching of key process parameters of the ventilation and dust removal system, such as the axial-radial air outlet ratio, the distance between the axial air outlet and the head, and the pressure-extraction ratio of the ventilation system, the dust removal effect is only about 70%, and the dust concentration on site remains high. Summary of the Invention

[0005] In view of this, in order to solve the problem that the key process parameters of the ventilation and dust removal system cannot be reasonably matched, resulting in financial, material and human resource losses, raw material waste, poor dust removal effect and persistently high dust concentration in the rapid excavation face of semi-coal and rock roadway, the present invention provides a method for determining the process parameters of the ventilation and dust removal system of the integrated tunneling and anchoring machine for rapid excavation faces.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A method for determining the process parameters of a ventilation and dust removal system for a tunneling and anchoring integrated machine's fast tunneling face, the method being based on a long-pressure, short-exhaust ventilation and dust removal system, includes the following steps:

[0008] S1. Establish a three-dimensional physical model of the rapid tunneling face for on-site simulation based on different working conditions;

[0009] S2. After meshing the three-dimensional physical model of the on-site simulation entity in step S1, conduct a mesh independence verification experiment. Set the same environmental parameters as the on-site environment, and use the on-site measured data to verify the calculation results of different mesh qualities. Optimize the physical model and boundary conditions based on the changing trends of the measured results and simulation results and the relative error requirement range.

[0010] S3. Conduct numerical simulation experiments on the effects of different ventilation conditions on the formation of the air curtain, compare and analyze the effects of different ventilation conditions on the dust-blocking air curtain, and obtain the conditions for the formation of the dust-blocking air curtain. Among them, different ventilation conditions refer to the pressure extraction ratio of the ventilation and dust removal system, the distance between the axial air outlet and the front of the adaptive air conditioning and dust control device, and the axial and radial air outlet ratio.

[0011] S4. Conduct numerical simulation experiments on the influence of different ventilation conditions on the dust concentration distribution of the rapid tunneling face. Combined with the results of step S3, the key process parameter values ​​under the optimal dust reduction effect of the ventilation and dust removal system of the rapid tunneling face are finally obtained. Among them, different ventilation conditions refer to the pressure extraction ratio of the ventilation and dust removal system, the distance between the axial air outlet of the adaptive air conditioning and dust control device and the face, and the axial-radial air outlet ratio.

[0012] S5. Verify the key process parameter values ​​on-site and make corrections based on the feedback results.

[0013] Furthermore, the environmental parameters in step S2 include the same calculated parameters as those on-site, such as wind speed, dust source point, dust mass flow rate, and dust particle size. The on-site measured data includes on-site measured data such as wind speed and dust concentration. The relative error between the measured results and the simulation results is required to be within 10%.

[0014] Furthermore, step S3 specifically involves: based on the site conditions of the ventilation duct connection at the rapid excavation face, the distance between the outlet of the adaptive air conditioning and dust control device and the working face is between 6m and 25m. The selected distance ranges are 5m, 10m, 15m, 20m, and 25m. A larger radial airflow and a smaller axial airflow are more conducive to reducing the axial airflow volume, minimizing disturbance to the airflow at the working face, and promoting the formation of a dust-blocking air curtain. Therefore, the axial-radial airflow ratio is set to 1:2, 1:3, 1:4, and 1: 5. The larger the dust collector's extraction volume, the more effective it is for quickly and efficiently treating the polluted air at the working face. In field practice, the extraction volume should not be less than 80% of the compressed air volume, and the pressure extraction ratio should be set within the range of 1:0.8, 1:1, and 1:1.2. Based on the range of values ​​for the above-mentioned parameter variables, values ​​were selected and calculation parameters were set to conduct simulation experiments. The effects of the pressure extraction ratio of the ventilation and dust removal system, the distance between the axial outlet and the front of the adaptive air conditioning and dust control device, and the axial-radial air outlet ratio on the dust-blocking air curtain were compared and analyzed to obtain the conditions for the formation of the dust-blocking air curtain.

[0015] Furthermore, step S4 specifically involves taking values ​​for each parameter variable from step S3, setting calculation parameter values, conducting simulation experiments, comparing and analyzing the effects of the ventilation and dust removal system's pressure extraction ratio, the distance between the axial outlet and the face of the adaptive air conditioning and dust control device, and the axial-radial air outlet ratio on dust concentration distribution, and combining the results of step S3 to finally obtain the key process parameter values ​​for the optimal dust reduction effect of the ventilation and dust removal system in the rapid tunneling face.

[0016] Furthermore, the long-pressure short-exhaust ventilation control and dust removal system includes an adaptive air-adjusting dust control device that controls dust at the front and is located at the end of the air supply duct, and a dust removal system that draws high-concentration dust at the front into a dust collector through a compressible duct, purifies it, and then discharges it into the rear alley.

[0017] Furthermore, the adaptive air conditioning and dust control device includes a foldable air duct storage device connected in sequence to the air supply duct, a lightweight slide rail installed on the roadway roof anchor mesh, a traction device installed on the lightweight slide rail, a distance sensor installed on the traction device, and an axial-radial air conditioning device connected to the traction device and capable of moving along the lightweight slide rail; the axial-radial air conditioning device includes a first air conditioning duct connected to the air duct storage device, a second air conditioning duct sleeved on the outside of the first air conditioning duct, an axial air conditioning motor installed near the traction device on the outside of the first air conditioning duct, and a radial air conditioning cylinder. An axial air regulating plate is installed inside the first air regulating duct. The axial air regulating plate is mechanically connected to the axial air regulating motor. The free end of the radial air regulating cylinder is fixed on the second air regulating duct, and the fixed end is fixed on the first air regulating duct. Both the first air regulating duct and the duct storage device are equipped with trolleys that cooperate with lightweight slide rails. The port of the first air regulating duct on one side of the axial air regulating plate is the axial air outlet, and the port near the second air regulating duct and opened on the outside of the first air regulating duct is the radial air outlet. The total area of ​​the radial air outlet of the first air regulating duct is equal to the total area of ​​the axial air outlet.

[0018] Furthermore, the dust removal system includes a compressible air duct and a dust collector.

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

[0020] The method for determining the process parameters of the ventilation and dust removal system for a rapid tunneling face disclosed in this invention determines parameters such as the processing air volume of the dust collector, the distance between the axial outlet of the adaptive airflow control device and the face, and the axial-radial airflow ratio in the ventilation and dust removal system of the integrated tunneling and anchoring machine, based on differences in tunnel cross-section, wind velocity, air supply volume, equipment size, dust generation intensity, etc. This method is practical and simple, providing guidance for the design and use of ventilation and dust removal systems for rapid tunneling faces. It can achieve optimal dust reduction while minimizing manpower, material resources, and financial resources, significantly improving the working environment of rapid tunneling faces.

[0021] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0022] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein:

[0023] Figure 1 is a schematic diagram of the ventilation and dust removal system in the method for determining the process parameters of the ventilation and dust removal system of the fast excavation face of the tunneling and anchoring machine of the present invention;

[0024] Figure 2 is a schematic diagram of the adaptive airflow and dust control device in Figure 1 of the present invention.

[0025] Reference numerals: 1. Air supply duct; 2. Adaptive air conditioning and dust control device; 3. Dust collector; 4. Compressible air duct; 5. Integrated excavation and anchoring machine; 6. Axial air outlet; 201. Radial air outlet; 202. Lightweight slide rail; 21. Traction device; 22. Pulley; 23. Axial air conditioning motor; 24. Axial air conditioning plate; 25. Radial air conditioning cylinder; 26. Second air conditioning duct; 27. Air duct storage device; 28. First air conditioning duct; 29. Detailed Implementation

[0026] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0027] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0028] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0029] A method for determining the process parameters of a ventilation and dust removal system for a tunneling and anchoring integrated machine's fast tunneling face, based on a long-pressure, short-extraction ventilation and dust removal system, includes the following steps:

[0030] S1. Establish a three-dimensional physical model of the rapid tunneling face for on-site simulation based on different working conditions;

[0031] S2. After meshing the three-dimensional physical model of the on-site simulation entity in step S1, conduct a mesh independence verification experiment. Set the same environmental parameters as the on-site (the same calculation parameters such as wind speed, dust source point, dust mass flow rate, and dust particle size as the on-site), and use the on-site measured data (wind speed, dust concentration, etc.) to verify the calculation results of different mesh qualities. Optimize the physical model and boundary conditions based on the changing trend of the measured results and simulation results, and the relative error requirement range (the relative error requirement range between the measured results and simulation results should be within 10%).

[0032] S3. Conduct numerical simulation experiments on the effects of different ventilation conditions on the formation of the air curtain, compare and analyze the effects of different ventilation conditions on the dust-blocking air curtain, and obtain the conditions for the formation of the dust-blocking air curtain. The different ventilation conditions refer to the pressure-extraction ratio of the ventilation and dust removal system, the different distances between the axial air outlet and the front of the adaptive air conditioning and dust control device, and the axial-radial air outlet ratio.

[0033] Specifically: Based on the site conditions of the ventilation duct connection at the rapid excavation face, the distance between the outlet of the adaptive air conditioning and dust control device and the working face is 6m-25m. The selected distance ranges are 5, 10, 15, 20, and 25m. A larger radial airflow and a smaller axial airflow are more conducive to reducing axial airflow volume, minimizing disturbance to the airflow at the working face, and promoting the formation of a dust-blocking air curtain. Therefore, the axial-radial airflow ratio is set to 1:2, 1:3, 1:4, and 1:5. The larger the exhaust volume, the more effective it is for quickly and efficiently treating the polluted air at the working face. In field practice, the exhaust volume should not be less than 80% of the compressed air volume, and the pressure-extraction ratio should be set within the range of 1:0.8, 1:1, and 1:1.2. Based on the range of values ​​for the above-mentioned parameter variables, values ​​are selected respectively, and calculation parameter values ​​are set to conduct simulation experiments. The effects of the pressure-extraction ratio of the ventilation and dust removal system, the distance between the axial outlet and the face of the adaptive air conditioning and dust control device, and the axial-radial air outlet ratio on the dust-blocking air curtain are compared and analyzed to obtain the conditions for the formation of the dust-blocking air curtain.

[0034] S4. Conduct numerical simulation experiments on the effects of different ventilation conditions (referring to the pressure-extraction ratio of the ventilation and dust removal system, the different distances between the axial outlet of the adaptive air-adjusting dust control device and the face, and the axial-radial air outlet ratio) on the dust concentration distribution of the rapid tunneling face. According to the range of values ​​of each parameter variable in step S3, take values ​​respectively, set the calculation parameter values ​​and conduct simulation experiments. Compare and analyze the effects of the pressure-extraction ratio of the ventilation and dust removal system, the distance between the axial outlet of the adaptive air-adjusting dust control device and the face, and the axial-radial air outlet ratio on the dust concentration distribution. Combined with the results of step S3, finally obtain the key process parameter values ​​under the optimal dust reduction effect of the ventilation and dust removal system in the rapid tunneling face.

[0035] S5. Verify the key process parameter values ​​on-site and make corrections based on the feedback results.

[0036] As shown in Figure 1, the long-pressure short-exhaust ventilation control and dust removal system includes an adaptive air-adjusting dust control device 2, which controls the dust at the front and is located at the end of the air supply duct 1 as shown in Figure 2, and a dust removal system that draws high-concentration dust at the front into the dust collector 3 through the compressible air duct 4, and discharges it into the rear alley after purification.

[0037] The adaptive air conditioning and dust control device 2 includes a foldable air duct storage device 28 connected in sequence to the air supply duct 1, a lightweight slide rail 21 installed on the roadway roof anchor net, a traction device 22 installed on the lightweight slide rail 21, a distance sensor installed on the traction device 22, and an axial-radial air conditioning device connected to the traction device 22 and capable of moving along the lightweight slide rail 21; the air duct storage device 28 is a telescopic air duct. The axial-radial air conditioning device includes a first air conditioning duct 29 connected to the air duct storage device 28, a second air conditioning duct 27 sleeved on the outside of the first air conditioning duct 29, an axial air conditioning motor 24 installed near the traction device 22 on the outside of the first air conditioning duct 29, a radial air conditioning cylinder 26, and an axial air conditioning plate 25 installed on the inside of the first air conditioning duct 29. The axial air conditioning plate 25 is mechanically connected to the axial air conditioning motor 24. The free end of the radial air conditioning cylinder 26 is fixed on the second air conditioning duct 27, and the fixed end is fixed on the first air conditioning duct 29; the first air conditioning... Both the air duct 29 and the air duct storage device 28 are equipped with trolleys 23 that work in conjunction with the lightweight slide rail 21. The trolleys 23 can move the entire adaptive air conditioning and dust control device 2 along the lightweight slide rail 21 under the traction of the traction device 22. The port of the first air conditioning air duct 29 on one side of the axial air conditioning plate 25 is the axial air outlet 201, and the port near the second air conditioning air duct 27 and opened on the outside of the first air conditioning air duct 29 is the radial air outlet 202. The total area of ​​the radial air outlet 202 of the first air conditioning air duct 29 is equal to the total area of ​​the axial air outlet 201.

[0038] Both the first air-adjusting duct 29 and the second air-adjusting duct 27 are rigid air-adjusting ducts. The first air-adjusting duct 29 has four radial air outlets 202. The axial air-adjusting motor 24 drives the axial air-adjusting plate 25, which can continuously adjust the angle between the axial air-adjusting plate 25 and the cross-section of the main body of the first air-adjusting duct 29, thereby dynamically adjusting the size of the axial air outlets 201. Under the extension and retraction of the radial air-adjusting cylinder 26, the second air-adjusting duct 27 can be fitted over the outside of the first air-adjusting duct 29, partially blocking the radial air outlets 202 on the outside of the first air-adjusting duct 29, thereby continuously adjusting the size of the radial air outlets 202. By adjusting the size of the axial air outlet 201 and the radial air outlet 202, the axial air volume is reduced, minimizing the disturbance of the airflow to the working face. The radial air volume is increased, and the radial airflow, combined with the negative pressure suction of the dust collector's inlet, forms a spiral airflow that continuously advances along the roadway axis, ultimately creating a dust-blocking air curtain in the working face area. This effectively controls the high concentration of dust generated at the working face. By adjusting the axial-radial air outlet ratio to a suitable range, a relatively ideal dust control effect is achieved.

[0039] The dust removal system includes a compressible air duct 4 and a dust collector 3.

[0040] The working principle of the ventilation and dust removal system for the rapid tunneling face of the integrated tunneling and anchoring machine 5 is as follows: The adaptive airflow and dust control device 2 automatically adjusts the appropriate axial and radial airflow based on the distance between the air outlet and the working face. The radial airflow, combined with the negative pressure suction of the dust collector 3, forms a spiral airflow that continuously advances along the roadway axis, ultimately forming a dust-blocking air curtain in the face area, thereby further controlling the high-concentration dust generated at the face. The high-concentration dust at the face is drawn into the dust collector 3 through the compressible air duct 4, where it is fully mixed with the atomized water sprayed from the nozzles at the air inlet, forming a mixture of dust, water, and air. Under the action of the exhaust fan's airflow, this mixture is intercepted by the filter plate and collected by the dewatering device, forming wastewater that flows out from the drain outlet. Finally, the remaining clean air is discharged into the main roadway by the fan.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A method for determining the process parameters of the ventilation and dust removal system for the rapid excavation face of a tunneling and anchoring integrated machine, characterized in that, This determination method is based on a long-pressure, short-extraction ventilation and dust control system, and includes the following steps: S1, establishing a three-dimensional physical model of the on-site simulation entity based on the rapid tunneling face under different working conditions; S2, after meshing the three-dimensional physical model of the on-site simulation entity in step S1, conducting a mesh independence verification experiment, setting the same environmental parameters as the field, and verifying the calculation results of different mesh qualities using on-site measured data, and optimizing the physical model and boundary conditions based on the changing trends of the measured results and simulation results, and the relative error requirement range; S3, conducting experiments on the influence of different ventilation conditions on the air curtain. Numerical simulation experiments were conducted to compare and analyze the effects of different ventilation conditions on the dust-blocking air curtain, deriving the conditions for the formation of the dust-blocking air curtain. These different ventilation conditions refer to the pressure-extraction ratio of the ventilation and dust removal system, the distance between the axial outlet of the adaptive air-adjusting dust control device and the face, and the axial-radial air outlet ratio. S4: Numerical simulation experiments were performed to investigate the effects of different ventilation conditions on the dust concentration distribution at the rapid tunneling face. Combined with the results from step S3, the key process parameters for the optimal dust reduction effect of the ventilation and dust removal system at the rapid tunneling face were finally obtained. These different ventilation conditions refer to the pressure-extraction ratio of the ventilation and dust removal system, the distance between the axial outlet of the adaptive air-adjusting dust control device and the face, and the axial-radial air outlet ratio. The distance between the air outlet and the face, and the axial-radial airflow ratio; S5, verify the key process parameter values ​​on-site and make corrections based on the feedback results; Step S3 specifically involves: based on the on-site conditions of the ventilation duct connection at the fast excavation face, the distance between the air outlet of the adaptive air conditioning and dust control device and the working face is between 6m and 25m, and the range of the distance between the air outlet of the adaptive air conditioning and dust control device and the working face is taken as 5, 10, 15, 20, and 25m; the larger the radial airflow and the smaller the axial airflow, the more beneficial it is to reduce the axial airflow volume, reduce the disturbance to the airflow at the working face, and facilitate the formation of a dust-blocking air curtain. Therefore, the axial-radial airflow ratio is... The air-to-air ratio is set to a range of 1:2, 1:3, 1:4, and 1:

5. The larger the dust collector's extraction volume, the more effective it is for quickly and efficiently treating the polluted air at the working face. In field practice, the extraction volume should not be less than 80% of the compressed air volume, and the pressure-to-extraction ratio is set to a range of 1:0.8, 1:1, and 1:1.

2. Based on the range of values ​​for each parameter variable, values ​​are selected and calculation parameters are set to conduct simulation experiments. The effects of the pressure-to-extraction ratio of the ventilation and dust removal system, the distance between the axial outlet and the front of the adaptive air conditioning and dust control device, and the axial-radial air outlet ratio on the dust-blocking air curtain are compared and analyzed to obtain the conditions for the formation of the dust-blocking air curtain.

2. The method for determining the process parameters of the ventilation and dust removal system for rapid tunneling faces as described in claim 1, characterized in that, In step S2, the environmental parameters include the same wind speed, dust source point, dust mass flow rate, and dust particle size calculation parameters as those on site. The on-site measured data include the on-site measured data of wind speed and dust concentration. The relative error between the measured results and the simulation results is required to be within 10%.

3. The method for determining the process parameters of the ventilation and dust removal system for rapid tunneling faces as described in claim 1, characterized in that, Step S4 specifically involves taking values ​​for each parameter variable from step S3, setting calculation parameter values, conducting simulation experiments, comparing and analyzing the effects of the ventilation and dust removal system's pressure extraction ratio, the distance between the axial outlet and the face of the adaptive air conditioning and dust control device, and the axial-radial air outlet ratio on dust concentration distribution, and combining the results of step S3 to finally obtain the key process parameter values ​​for the optimal dust reduction effect of the ventilation and dust removal system in the rapid tunneling face.

4. The method for determining the process parameters of the ventilation and dust removal system for rapid tunneling faces as described in claim 1, characterized in that, The long-pressure short-exhaust ventilation control and dust removal system includes an adaptive air-adjusting dust control device that controls dust at the front and is located at the end of the air supply duct, and a dust removal system that draws high-concentration dust at the front into a dust collector through a compressible duct, purifies it, and then discharges it into the back alley.

5. The method for determining the process parameters of the ventilation and dust removal system for rapid tunneling faces as described in claim 4, characterized in that, The adaptive air conditioning and dust control device includes a foldable air duct storage device connected in sequence with the air supply duct, a lightweight slide rail installed on the roadway roof anchor mesh, a traction device installed on the lightweight slide rail, a distance sensor installed on the traction device, and an axial-radial air conditioning device connected to the traction device and capable of moving along the lightweight slide rail; the axial-radial air conditioning device includes a first air conditioning duct connected to the air duct storage device, a second air conditioning duct sleeved on the outside of the first air conditioning duct, an axial air conditioning motor installed near the traction device on the outside of the first air conditioning duct, a radial air conditioning cylinder, and a mounting... An axial air regulating plate is located inside the first air regulating duct. The axial air regulating plate is mechanically connected to the axial air regulating motor. The free end of the radial air regulating cylinder is fixed on the second air regulating duct, and the fixed end is fixed on the first air regulating duct. Both the first air regulating duct and the duct storage device are equipped with trolleys that cooperate with lightweight slide rails. The port of the first air regulating duct on one side of the axial air regulating plate is the axial air outlet, and the port near the second air regulating duct and located outside the first air regulating duct is the radial air outlet. The total area of ​​the radial air outlet of the first air regulating duct is equal to the total area of ​​the axial air outlet.

6. The method for determining the process parameters of the ventilation and dust removal system for rapid tunneling faces as described in claim 5, characterized in that, The dust removal system includes a compressible air duct and a dust collector.

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