Dust removal device and coal mine excavation system

Abstract

The present invention discloses a dust removal device and a coal mine excavation system. The dust removal device comprises a first air duct, a second air duct, an air regulating assembly and a dust collecting assembly. The first air duct is used for ventilating the mine, and the dust in the mine is suitable for being discharged through the second air duct. At least part of the air regulating assembly is arranged in the first air duct. The air regulating assembly has a first air outlet and a second air outlet. The first air outlet is connected to the front end of the first air duct, and the second air outlet is connected to the mine through the side wall of the first air duct. The air regulating assembly is used to monitor the concentration of dust in the mine and adjust the flow of air discharged from the first air outlet and the second air outlet through the monitoring data. The dust collecting assembly is arranged at the front end of the second air duct to collect dust in the mine and discharge the dust into the second air duct. The dust removal device and the coal mine excavation system of the embodiment of the present invention have the advantage of high dust removal efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mine ventilation and dust removal, and in particular to a dust removal device and a coal mine excavation system. Background Art

[0002] During the excavation process of coal mines, a large amount of dust will be generated when the drill bit of the tunnel boring machine cuts the rock and soil. The dust is easy to accumulate near the working face. When workers are loading, transporting and cleaning the working face, they are easy to inhale the dust into their bodies, which is harmful to their health.

[0003] Therefore, the relevant technology often adopts the method of long pressure and short extraction to ventilate the mine to ensure good ventilation in the mine so that dust can be discharged in time. However, dust removal in this way has problems such as poor ventilation and dust control effect and low dust removal efficiency. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the present invention provides a dust removal device and a coal mine excavation system, which has the advantage of high dust removal efficiency.

[0005] The dust removal device according to the embodiment of the present invention comprises:

[0006] A first wind tube and a second wind tube, wherein the first wind tube and the second wind tube are suitable for being arranged in a mine, the first wind tube is used for ventilating the mine, and dust in the mine is suitable for being discharged through the second wind tube;

[0007] An air regulating component, at least part of which is disposed in the first air duct, the air regulating component having a first air outlet and a second air outlet, the first air outlet being connected to the front end of the first air duct, the second air outlet being connected to the mine through the side wall of the first air duct, the air regulating component being used to monitor the dust concentration in the mine and to adjust the flow rate of the air discharged from the first air outlet and the second air outlet according to the monitoring data,

[0008] The air regulating component comprises:

[0009] An air regulating member, the air regulating member is arranged in the first air duct and adjacent to the front end of the first air duct, the air regulating member is used to adjust the opening and closing of the first air outlet and the second air outlet and the flow rate of air discharged from the first air outlet and the second air outlet;

[0010] A sensor, the sensor is arranged at the second air outlet to monitor the dust content in the mine, and transmits the monitored data to the air regulating member, and the air regulating member adjusts the air volume at the second air outlet according to the monitored data;

[0011] The air regulating assembly further includes a flow guide member, the flow guide member having a chamber and an opening, the chamber being connected to the opening and the second air outlet, the opening being multiple, and the multiple openings being arranged at intervals on the flow guide member, the air discharged through the second air outlet first enters the chamber, and then is discharged from the opening;

[0012] A dust collecting component is arranged at the front end of the second air duct and is used for collecting dust in the mine and discharging the dust into the second air duct.

[0013] In the dust removal device of the embodiment of the present invention, the wind discharged from the first air duct blows the dust in the mine to the second air duct. The provision of the dust collecting component increases the rate at which dust enters the second air duct and reduces the concentration of dust in the mine. The wind discharged from the first air outlet can accelerate the flow of dust to the second air duct. The wind discharged from the second air outlet can effectively prevent the diffusion of dust in the mine. The wind discharged from the second air outlet works together with the wind discharged from the first air outlet to further increase the rate at which dust flows to the second air duct. The air regulating component adjusts the air volume of the first air outlet and the second air outlet by monitoring data, so that the air regulating component is intelligent when used, thereby improving the dust removal efficiency of the dust removal device, allowing the dust in the mine to be discharged in time, and ensuring a good ventilation condition in the mine.

[0014] In some embodiments, an angle a is formed between an extension direction of the flow guide member and an extension direction of the first air tube, and the range of the angle a is: 0≤a≤90°.

[0015] In some embodiments, the dust collection assembly comprises:

[0016] a third air duct, the third air duct being arranged at the front end of the second air duct and being in communication with the second air duct;

[0017] A sleeve and a fan, wherein the sleeve is sleeved on the third wind tube, and the fan is arranged at the rear end of the sleeve to supply air into the sleeve. The wind in the sleeve is discharged from the front end of the sleeve and forms a continuous wind barrier around the circumference of the third wind tube. The dust in the mine can enter the third wind tube through the wind barrier.

[0018] In some embodiments, the front end of the third air cylinder is folded away from the central axis of the third air cylinder, the front end of the sleeve is folded away from the central axis of the third air cylinder, and the front end of the sleeve is adapted to the front end of the third air cylinder.

[0019] In some embodiments, the dust removal device further includes a filter assembly.

[0020] The filter assembly comprises:

[0021] A filter pool, the filter pool is connected to the second air cylinder, the filter pool has a filter liquid, and the dust in the second air cylinder can enter the filter pool for dust removal;

[0022] A separator, the separator includes a main body, a first pipeline and a second pipeline, the main body has a separation chamber, one end of the first pipeline and one end of the second pipeline are connected to the separation chamber, the other end of the first pipeline extends into the bottom of the filter tank, and the other end of the second pipeline extends into the top of the filter tank and into the filtrate.

[0023] In some embodiments, the filter assembly further includes an ultrasonic component, which is disposed in the filter tank and can generate ultrasonic energy to enhance the performance of the filtered liquid in adsorbing dust in the air.

[0024] In some embodiments, the first wind tube and the second wind tube are arranged at the top of the mine and spaced apart along the width direction of the mine, the first wind tube and the second wind tube extend along the extension direction of the mine, and the first wind tube and the second wind tube are movable along the extension direction of the mine relative to the mine.

[0025] The coal mine excavation system of the embodiment of the present invention comprises:

[0026] A tunneling machine, the tunneling machine is used to break the coal seam;

[0027] A dust removal device, wherein the dust removal device is the dust removal device described in the above embodiment.

[0028] In the coal mine excavation system of the embodiment of the present invention, during the excavation process of the excavator, the dust removal device can collect the dust in the mine in time, thereby ensuring the environment in the mine and the health of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a side view of a coal mine excavation system according to an embodiment of the present invention.

[0030] Figure 2 1 is a top view of a coal mine excavation system according to an embodiment of the present invention.

[0031] Figure 3 It is a schematic diagram of an air regulating component of a dust removal device according to an embodiment of the present invention.

[0032] Figure 4 Schematic diagram of a dust collecting assembly of a dust removal device according to an embodiment of the present invention.

[0033] Figure 5 Schematic diagram of a filter assembly of a dust removal device according to an embodiment of the present invention.

[0034] Figure numerals: 100, dust removal device; 1, first air duct; 2, second air duct; 3, air regulating assembly; 31, first air outlet; 32, second air outlet; 33, air regulating member; 34, flow guide member; 341, chamber; 342, opening; 4, dust collecting assembly; 41, third air duct; 42, sleeve; 43, fan; 51, first barrel section; 52, ventilator; 6, filter assembly; 61, filter tank; 611, inlet; 612, outlet; 62, separator; 621, body; 6211, separation chamber; 622, first pipeline; 623, second pipeline; 64, ultrasonic member; 7, second barrel section; 8, mine; 200, tunneling machine. DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0036] like Figure 1-5 As shown, the dust removal device of the embodiment of the present invention includes a first wind tube 1, a second wind tube 2, an air adjustment component 3 and a dust collection component 4. The first wind tube 1 and the second wind tube 2 are suitable for being arranged in a mine 8, the first wind tube 1 is used for ventilating the mine 8, and the dust in the mine 8 is suitable for being discharged through the second wind tube 2. Specifically, the wind discharged from the first wind tube 1 blows the dust in the mine 8 into the second wind tube 2 to reduce the concentration of the dust in the mine 8.

[0037] The first wind tube 1 and the second wind tube 2 are installed at the top of the mine 8 and along the extension direction of the mine 8 (such as Figure 1 The first wind cylinder 1 and the second wind cylinder 2 are movable in the first direction relative to the mine 8. The first wind cylinder 1 and the second wind cylinder 2 are arranged along the width direction of the mine 8 (as shown in the first direction). Figure 2 The first direction is orthogonal to the second direction.

[0038] Specifically, a slide rail (not shown) is provided on the top surface of the mine 8, and the slide rail is provided along a first direction (such as Figure 1 The first wind cylinder 1 and the second wind cylinder 2 are slidably installed on the slide rail to enable the first wind cylinder 1 and the second wind cylinder 2 to move relative to the mine 8, so as to continuously collect the dust in the mine 8, reduce the diffusion of dust, and ensure the environment in the mine 8.

[0039] At least part of the air regulating assembly 3 is disposed in the first air cylinder 1, and the air regulating assembly 3 has a first air outlet 31 and a second air outlet 32, wherein the first air outlet 31 is connected to the front end of the first air cylinder 1, and the second air outlet 32 ​​is connected to the mine 8 through the side wall of the first air cylinder 1. The air regulating assembly 3 is used to monitor the concentration of dust in the mine 8 and adjust the flow rate of the air discharged from the first air outlet 31 and the second air outlet 32 ​​according to the monitoring data.

[0040] The dust collecting assembly 4 is arranged at the front end of the second air cylinder 2, and is used to collect dust in the mine 8 and discharge the dust into the second air cylinder 2. Specifically, the arrangement of the dust collecting assembly 4 increases the speed at which dust enters the second air cylinder 2.

[0041] In the dust removal device of the embodiment of the present invention, the wind discharged from the first air outlet 31 can accelerate the flow of dust, so that the speed of dust flowing to the second air duct 2 is accelerated. The wind discharged from the second air outlet and the wind discharged from the first air outlet 31 work together, which can not only effectively prevent the dust from spreading in the mine 8, but also further increase the speed of dust flowing to the second air duct 2. The air regulating component 3 adjusts the air volume of the first air outlet 31 and the second air outlet 32 ​​through monitoring data, so that the air regulating component 3 is intelligent when used, and the dust removal efficiency of the dust removal device 100 is improved, so that the dust in the mine 8 can be discharged in time, and a good ventilation state in the mine 8 is ensured.

[0042] In some embodiments, the dust removal device 100 further includes a first barrel section 51 and a ventilator 52. The first barrel section 51 is connected to the first air duct 1 through the air adjustment assembly 3. The ventilator 52 is disposed at the rear end of the first barrel section 51 and is used to ventilate the first barrel section 51. When the first air duct 1 advances a certain distance, at least one first barrel section 51 may be added at the rear end of the first barrel section 51.

[0043] In some embodiments, the air regulating assembly 3 includes an air regulating member 33 and a sensor (not shown). The air regulating member 33 is disposed in the first air cylinder 1 and adjacent to the front end of the first air cylinder 1, and the air regulating member 33 is used to adjust the opening and closing of the first air outlet 31 and the second air outlet 32 ​​and the flow rate of the air discharged from the first air outlet 31 and the second air outlet 32. Specifically, the second air outlet 32 ​​is located on the side of the first air cylinder 1 adjacent to the second air cylinder 2, so that the air discharged from the second air outlet 32 ​​flows between the first air cylinder 1 and the second air cylinder 2, thereby increasing the speed of air flow in the mine 8 and providing fresh air flow for the workers in the mine 8.

[0044] The sensor is connected to the air regulating member 33, and the sensor is arranged at the second air outlet 32 ​​to monitor the dust content in the mine 8, and transmit the monitored data to the air regulating member 33, and the air regulating member 33 adjusts the air volume of the first air outlet 31 and the air volume of the second air outlet 32 ​​according to the monitoring data.

[0045] Specifically, the sensor has a set value. When the sensor detects that the dust content in the mine 8 exceeds the set value, the air regulating member 33 adjusts the opening degree of the second air outlet 32 ​​to increase, thereby increasing the air flow through the second air outlet 32, reducing the diffusion of dust in the mine 8, and increasing the flow rate of dust to the front end of the second air duct 2. Thus, the concentration of dust in the mine 8 is monitored in real time through the sensor, so that dust diffusion is prevented in a timely and effective manner, and the environment in the mine 8 is ensured.

[0046] In some embodiments, the air adjustment component 3 also includes a guide member 34, the guide member 34 has a chamber 341 and an opening 342, the chamber 341 is connected to the opening 342 and the second air outlet 32, there are multiple openings 342, and the multiple openings 342 are arranged at intervals on the guide member 34, and the wind discharged through the second air outlet 32 ​​first enters the chamber 341 and then is discharged from the opening 342.

[0047] Specifically, one end of the guide member 34 is connected to the side wall of the first wind tube 1 adjacent to the second wind tube 2, and the other end of the guide member 34 extends toward the second wind tube 2. The chamber 341 of the guide member 34 is connected to the second air outlet 32 ​​to ventilate the chamber 341 through the second air outlet 32, and then the wind in the chamber 341 is discharged through a plurality of openings 342 to supply air to the front and rear ends of the mine 8. The wind discharged to the front end of the mine 8 can prevent the diffusion of dust, so that the dust is absorbed by the dust collecting assembly 4 as much as possible. The wind discharged to the rear end of the mine 8 can accelerate the flow of air in the mine 8, thereby ensuring a good ventilation state in the mine 8.

[0048] In some embodiments, an angle a is formed between the extension direction of the flow guide member 34 and the extension direction of the first air tube 1 , and the range of the angle a is: 0≤a≤90°.

[0049] Specifically, when the angle a is 0°, the other end of the guide member 34 extends toward the front end of the first wind tube 1, or the other end of the guide member 34 extends toward the rear end of the first wind tube 1, and the opening 342 on the guide member 34 is directed toward the second wind tube 2, and the wind discharged from the opening 342 is discharged toward the second wind tube 2 to block the dust in the mine 8, so that the dust is not easily diffused to the rear end of the mine 8, and flows to the second wind tube 2 through the dust collecting assembly 4.

[0050] When the angle a is 90°, the other end of the guide member 34 extends along the second direction toward the second wind tube 2, and ventilation is carried out to the front and rear ends of the mine 8 through the guide member 34 to prevent the diffusion of dust, so that the dust flows to the dust collecting assembly 4, thereby ensuring good ventilation in the mine 8.

[0051] In some embodiments, the dust collecting assembly 4 includes a third air cylinder 41, a sleeve 42 and a fan 43. The third air cylinder 41 is disposed at the front end of the second air cylinder 2 and is connected to the second air cylinder 2. Specifically, the rear end of the third air cylinder 41 is connected to the front end of the second air cylinder 2, and the front end of the third air cylinder 41 extends forward along the first direction.

[0052] The sleeve 42 is sleeved on the third wind tube 41, and the fan 43 is arranged at the rear end of the sleeve 42 to supply air into the sleeve 42. The wind in the sleeve 42 is discharged from the front end of the sleeve 42 and forms a continuous wind barrier around the circumference of the third wind tube 41. The dust in the mine 8 can enter the third wind tube 41 through the wind barrier.

[0053] Specifically, the front end of the sleeve 42 is aligned with the front end of the third wind tube 41, and the wind blown out from the front end of the sleeve 42 forms a continuous wind barrier around the circumference of the third wind tube 41. The air pressure in the wind barrier is lower than the atmospheric pressure, so that dust can enter the third wind tube 41 from the channel surrounded by the wind barrier under the action of the atmospheric pressure, making the way for dust to enter the third wind tube 41 simple and efficient. The formation of the wind barrier can also block the dust and prevent the dust from spreading in the mine 8.

[0054] In some embodiments, the front end of the third air cylinder 41 is folded away from the central axis of the third air cylinder 41, the front end of the sleeve 42 is folded away from the central axis of the third air cylinder 41, and the front end of the sleeve 42 is adapted to the front end of the third air cylinder 41.

[0055] Specifically, an angle b is formed between the extension line of the folded front end of the third air cylinder 41 and the central axis of the third air cylinder 41, and the angle b is: 0<a≤90°. When the angle b is 90°, the flow direction of the wind blown out from the front end of the sleeve 42 is in the second direction, and the wind barrier formed is generally on the vertical plane, which can not only prevent the diffusion of dust, but also facilitate the dust collection component 4 to collect dust.

[0056] In some embodiments, the dust removal device 100 further includes a filter assembly 6. The filter assembly 6 includes a filter pool 61 and a separator 62. The filter pool 61 is connected to the second air cylinder 2, and there is a filter liquid in the filter pool 61. The dust in the second air cylinder 2 can enter the filter pool 61 for dust removal. Specifically, the filter pool 61 has an inlet 611 and an outlet 612. The inlet 611 is located at the bottom of the filter pool 61 and is connected to the rear end of the second air cylinder 2. The dust in the second air cylinder 2 can enter the filter pool 61 through the inlet 611. The filter liquid is used to filter the dust, and the outlet 612 is used to discharge the dust-removed air.

[0057] In some embodiments, the dust removal device 100 further includes a second barrel section 7, the front end of which is connected to the outlet 612, and the dust-removed air is discharged through the second barrel section 7. When the second air cylinder 2 advances a certain distance, at least one second barrel section 7 is added to the rear end of the second barrel section 7.

[0058] The separator 62 includes a main body 621, a first pipeline 622 and a second pipeline 623. The main body 621 has a separation chamber 6211. One end of the first pipeline 622 and one end of the second pipeline 623 are connected to the separation chamber 6211. The other end of the first pipeline 622 extends into the bottom of the filter tank 61, and the other end of the second pipeline 623 extends into the top of the filter tank 61 and into the filtrate.

[0059] Specifically, when the filtrate is filtering dust, it is easy for the filtrate to wrap the dust and form bubbles. Therefore, when the filter assembly 6 is in use, the filtrate and bubbles at the bottom of the separation chamber 6211 are pumped into the separation chamber 6211 through the first pipe 622, and the bubbles are broken by the separation chamber 6211 to dissolve the dust in the filtrate. Then, the filtrate is discharged into the separation chamber 6211 through the second pipe 623, thereby improving the filtering effect of the filtrate and preventing the filter assembly 6 from being blocked.

[0060] In some embodiments, the filter assembly 6 further includes an ultrasonic component 64 , which is disposed in the filter tank 61 . The ultrasonic component 64 can generate ultrasonic energy to enhance the performance of the filter liquid in adsorbing dust in the air.

[0061] Specifically, the ultrasonic energy generated by the ultrasonic element 64 can also shatter the bubbles in the filter tank 61, so that the dust is dissolved in the filtrate, further improving the filtration effect of the filtrate and reducing the frequency of replacing the filtrate.

[0062] There are multiple ultrasonic elements 64, which are divided into two groups. The two groups of ultrasonic elements 64 are respectively arranged at the top and bottom of the filter tank 61. Each group of ultrasonic elements 64 includes multiple ultrasonic elements 64. The multiple ultrasonic elements 64 in each group are arranged at intervals, which further improves the efficiency of dust dissolving in the filtrate.

[0063] The coal mine excavation system of the embodiment of the present invention comprises an excavator 200 and a dust removal device 100. The excavator 200 is used to crush the coal seam.

[0064] Specifically, the tunnel boring machine 200 is located between the first wind tube 1 and the second wind tube 2. As the tunnel boring machine 200 moves forward, the first wind tube 1 and the second wind tube 2 also move forward to continuously collect dust in the mine 8, reduce the spread of dust, and ensure the environment in the mine 8.

[0065] The front end of the sleeve 42 is located between the working room of the tunnel boring machine 200 and the tunneling head of the tunnel boring machine 200, so that the wind barrier formed by the wind discharged from the front end of the sleeve 42 is located in front of the working room, so as to isolate the wind dust at the working face of the mine 8 from the working room, making it difficult for dust to adhere to the working room and enter the working room, thereby ensuring the work efficiency and working environment of the staff.

[0066] In the coal mine excavation system of the embodiment of the present invention, during the excavation process of the excavator 200, the dust removal device 100 can collect the dust in the mine 8 in a timely manner, thereby ensuring the environment in the mine 8 and the health of the workers.

[0067] The principle of the coal mine excavation system of the embodiment of the present invention is:

[0068] The ventilator 52 inputs fresh airflow into the first cylinder section 51, and the airflow is divided into the airflow entering the excavation working face through the first air outlet 31 and the airflow entering the mine 8 through the second air outlet 32 ​​through the air regulating component 3. The airflow discharged through the first air outlet 31 can not only prevent the polluted air of the excavation working face from spreading outward, but also provide fresh airflow for the workers in the mine 8. The fan 43 in the dust collecting component 4 provides a wind power source for the wind barrier jet to form a wind curtain between the dust-produced pollution area in front of the excavator 200 and the working room of the excavator 200, which can not only effectively prevent the air in the polluted area from spreading into the mine 8, but also blow the air in the polluted area to the position of the dust collecting component 4 with the assistance of the air regulating component 3 to enter the second air cylinder 2. Dust enters the filter tank 61 through the inlet 611, and under the action of the ultrasonic element 64, the effect of efficient dust removal is achieved. The dust and mud in the filtrate are separated from the mud and water through the separator 62 to prevent the filter from being blocked. The dust-removed air is discharged from the second barrel section 7 through the outlet 612.

[0069] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0070] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0071] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0072] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0073] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0074] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A dust removal device, characterized in that: include: A first wind tube (1) and a second wind tube (2), wherein the first wind tube (1) and the second wind tube (2) are suitable for being arranged in a mine (8), the first wind tube (1) is used for ventilating the mine (8), and dust in the mine (8) is suitable for being discharged through the second wind tube (2); An air regulating component (3), at least part of which is arranged in the first air cylinder (1), the air regulating component (3) having a first air outlet (31) and a second air outlet (32), the first air outlet (31) being connected to the front end of the first air cylinder (1), the second air outlet (32) being connected to the mine (8) through the side wall of the first air cylinder (1), the air regulating component (3) being used to monitor the concentration of dust in the mine (8) and to adjust the flow rate of air discharged from the first air outlet (31) and the second air outlet (32) according to the monitoring data, The air regulating component (3) comprises: an air regulating member (33), the air regulating member (33) being arranged in the first air cylinder (1) and adjacent to the front end of the first air cylinder (1), the air regulating member (33) being used for regulating the opening and closing of the first air outlet (31) and the second air outlet (32) and the flow rate of air discharged from the first air outlet (31) and the second air outlet (32); a sensor, the sensor being arranged at the second air outlet (32) to monitor the dust content in the mine (8), and transmitting the monitored data to the air regulating member (33), wherein the air regulating member (33) regulates the air volume at the second air outlet (32) according to the monitored data; The air regulating component (3) further comprises a flow guiding member (34), the flow guiding member (34) comprising a chamber (341) and an opening (342), the chamber (341) being in communication with the opening (342) and the second air outlet (32), the opening (342) being in a plurality, the plurality of openings (342) being arranged at intervals on the flow guiding member (34), the air discharged through the second air outlet (32) first entering the chamber (341) and then being discharged from the opening (342); A dust collecting component (4) is arranged at the front end of the second air duct (2) and is used to collect dust in the mine (8) and discharge the dust into the second air duct (2).

2. The dust removal device according to claim 1, characterized in that: An included angle a is formed between the extension direction of the flow guide member (34) and the extension direction of the first air tube (1), and the range of the included angle a is: 0≤a≤90°.

3. The dust removal device according to claim 1, characterized in that: The dust collecting component (4) comprises: a third air cylinder (41), the third air cylinder (41) being arranged at the front end of the second air cylinder (2) and being in communication with the second air cylinder (2); A sleeve (42) and a fan (43), wherein the sleeve (42) is sleeved on the third wind tube (41), and the fan (43) is arranged at the rear end of the sleeve (42) for supplying air into the sleeve (42), the air in the sleeve (42) is discharged from the front end of the sleeve (42) and forms a continuous wind barrier around the circumference of the third wind tube (41), and the dust in the mine (8) can enter the third wind tube (41) through the wind barrier.

4. The dust removal device according to claim 3, characterized in that: The front end of the third air cylinder (41) is folded in a direction away from the central axis of the third air cylinder (41), and the front end of the sleeve (42) is folded in a direction away from the central axis of the third air cylinder (41), and the front end of the sleeve (42) is adapted to the front end of the third air cylinder (41).

5. The dust removal device according to claim 1, characterized in that: Also includes a filter assembly (6), The filter assembly (6) comprises: A filter pool (61), the filter pool (61) being in communication with the second air cylinder (2), the filter pool (61) containing a filter liquid, and dust in the second air cylinder (2) being able to enter the filter pool (61) for dust removal; A separator (62), the separator (62) comprising a body (621), a first pipeline (622) and a second pipeline (623), the body (621) having a separation chamber (6211), one end of the first pipeline (622) and one end of the second pipeline (623) being connected to the separation chamber (6211), the other end of the first pipeline (622) extending into the bottom of the filter tank (61), and the other end of the second pipeline (623) extending into the top of the filter tank (61) and into the filtrate.

6. The dust removal device according to claim 5, characterized in that: The filter assembly (6) further comprises an ultrasonic component (64), wherein the ultrasonic component (64) is arranged in the filter tank (61), and the ultrasonic component (64) can generate ultrasonic energy to enhance the performance of the filtered liquid in absorbing dust in the air.

7. The dust removal device according to claim 1, characterized in that: The first wind tube (1) and the second wind tube (2) are arranged at the top of the mine (8) and are spaced apart along the width direction of the mine (8); the first wind tube (1) and the second wind tube (2) extend along the extension direction of the mine (8); the first wind tube (1) and the second wind tube (2) are movable along the extension direction of the mine (8) relative to the mine (8).

8. A coal mine excavation system, characterized in that: include: A roadheader (200), the roadheader (200) being used to crush a coal seam; A dust removal device (100), wherein the dust removal device (100) is the dust removal device (100) according to any one of claims 1 to 7.

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