Dust control device and dust control mechanism of coal transportation mechanism

Abstract

The invention belongs to the technical field of coal mining equipment, and particularly relates to a dust control device and a dust control mechanism of a coal transportation mechanism. The device comprises a supporting frame, a driving structure, a first rolling brush structure, a second rolling brush structure, a water retaining and flow guiding assembly, a water circulation assembly, a first transmission structure and a second transmission structure. The driving structure, the first rolling brush structure and the second rolling brush structure are sequentially and rotatably arranged on the supporting frame in the direction close to the sweeper, the driving structure is rotatably connected with the first rolling brush structure through a first transmission structure, and the driving structure makes contact with a belt; the first rolling brush structure is rotationally connected with the second rolling brush structure through the second transmission structure, the lower portions of the rolling brush structures are immersed in the water circulation assembly, and the water retaining and flow guiding assembly is arranged at the end, facing the sweeper, of the water circulation assembly. And meanwhile, health hazards to operators are reduced. Moreover, the dust control device provided by the invention is simple in structure and low in investment, does not need additional electric equipment, realizes linkage completely depending on the power of the belt, and effectively controls raised dust while cleaning the coal dust, so that the purpose of dust control is achieved.

Description

Technical Field

[0001] This application relates to the field of coal mine equipment technology, and in particular to a dust control device and dust control mechanism for a coal transportation organization. Background Technology

[0002] Coal mines, coal terminals, and coal-fired power plants typically have belt conveyor systems. After coal is unloaded from the belt, some loose coal often remains stuck to it. If this is not cleaned properly, it will result in resource waste and equipment wear.

[0003] In related technologies, multiple cleaners are installed on the belt to remove residue. However, the high-speed rotation of the belt and the cleaners can also generate dust. Furthermore, fine coal dust that remains on the belt after cleaning can travel with the belt to the tail end guide chute and rub against the rubber skirt along the lower edge of the guide chute, thus stirring up dust again. Summary of the Invention

[0004] This application is made in view of the above-mentioned problems. This application provides a dust control device and dust control mechanism for a coal transportation organization.

[0005] According to one aspect of this application, a dust control device for a coal transport mechanism is provided, the coal transport mechanism including a horizontally positioned belt conveyor and a sweeper disposed at the bottom end of the belt conveyor, the dust control device being located downstream of the sweeper in a dust diffusion path, the dust control device comprising: The system comprises a support frame, a drive structure, a first roller brush structure, a second roller brush structure, a water-blocking and guiding component, a water circulation component, a first transmission structure, and a second transmission structure. The drive structure, the first roller brush structure, and the second roller brush structure are rotatably mounted on the support frame in sequence along the direction closest to the sweeper. The first transmission structure is rotatably mounted on the support frame and located between the drive structure and the first roller brush structure. The second transmission structure is rotatably mounted on the support frame and located between the first roller brush structure and the second roller brush structure. The drive structure is rotatably connected to the first roller brush structure via the first transmission structure and contacts the belt, driving the first roller brush structure to rotate under friction. The first roller brush structure is rotatably connected to the second roller brush structure via the second transmission structure. The water circulation component is disposed within the support frame, with the lower parts of both the first and second roller brush structures immersed in it. The water-blocking and guiding component is located at one end of the water circulation component facing the sweeper and extends to both sides of the second and first roller brush structures. The extended portion of the water-blocking and guiding component contacts the belt.

[0006] Compared with existing technologies, the dust control device provided in this application includes a support frame, a drive structure, a first roller brush structure, a second roller brush structure, a water-blocking and guiding assembly, a water circulation assembly, a first transmission structure, and a second transmission structure. The support frame serves as the mounting base for the entire dust control device, fixing all components such as the drive structure, roller brush structure, water-blocking and guiding assembly, and water circulation assembly, ensuring the relative positional stability of each component and forming a compact overall structure. The drive structure contacts the belt surface, obtaining power through the friction of the belt during operation and rotating in the same direction as the belt's movement. This power is then transmitted to the first roller brush structure via the first transmission structure, serving as the power source for the entire device, eliminating the need for an additional motor and achieving "powerless drive." The first roller brush structure is driven to rotate by the drive structure through the first transmission structure, rotating in the same direction as the belt, with its lower part immersed in the water circulation assembly. The second roller brush structure is driven to rotate by the first roller brush structure through the second transmission structure, with its lower part also immersed in water. During the rotation of the two roller brush structures, the second roller brush structure is closer to the sweeper than the first roller brush structure. It can initially clean residual coal dust on the belt surface, and its rotation carries water to wet the belt surface, suppressing dust generation. Furthermore, the second roller brush structure generates airflow through rotation, guiding the dust generated by the sweeper into the dust control area enclosed by the water circulation component, the belt, the water-blocking and guiding component, and the first roller brush structure, preventing dust overflow. The first roller brush structure further cleans the fine coal dust remaining on the belt surface, forming a "progressive cleaning" effect with the second roller brush structure. The water it carries during rotation forms a "water curtain barrier" within the dust control area, efficiently capturing suspended coal dust not removed by the second roller brush structure. Moreover, the first roller brush structure, in conjunction with the water-blocking and guiding component, enhances the sealing of the dust control area, reducing dust escape. The water-blocking and guiding component, located at the end of the water circulation component facing the sweeper, blocks excess water carried out by the first roller brush structure during rotation, preventing water overflow. Furthermore, it extends to both sides of the first and second roller brush structures and contacts the belt, forming a relatively sealed dust control area together with the water circulation component, belt, and first roller brush structure. This prevents coal dust from spreading from both sides and ensures that the coal dust is concentrated within the dust control area for treatment. The water circulation component acts as a water storage component, providing a water source for the first and second roller brush structures, allowing the lower part of the roller brush to be immersed in water. This ensures that the roller brush can carry water while rotating, achieving the functions of wetting the belt and capturing coal dust; it can also store coal sludge formed by coal dust sedimentation, facilitating subsequent cleaning. The first and second transmission structures then serve to transmit power.

[0007] When the belt is running horizontally, the drive structure in contact with the belt begins to rotate under the action of friction. The drive structure transmits power to the first roller brush structure through the first transmission structure, causing the first roller brush structure to rotate in the same direction as the belt's running direction. Simultaneously, the first roller brush structure drives the second roller brush structure to rotate synchronously through the second transmission structure, and the rotation direction of the second roller brush structure is also in the same direction as the belt's running direction. Then, the coal dust swept down by the sweeper at the bottom of the belt is guided by the rotation of the second roller brush structure into the dust control area formed by the water-blocking and guiding component, the water circulation component, and the belt. Because the extended part of the water-blocking and guiding component is in contact with the belt, this dust control area is relatively sealed, preventing coal dust from overflowing. The lower part of the second roller brush structure is immersed in the water of the water circulation component. When it rotates, it carries water, which on the one hand wets the belt, reducing the dust generated by subsequent sweeping, and on the other hand, the wet bristles will adhere to some coal dust. When the bristles are immersed in water again, the coal dust is washed into the water and settled. The lower part of the first roller brush structure is also immersed in water. The wet bristles further capture coal dust in the dust control area that has not been removed by the second roller brush structure and carry it into the water for sedimentation, thus achieving effective control of coal dust. When the belt stops running, the drive structure loses friction and stops rotating. The first and second roller brush structures also stop working under the linkage of the transmission structure, and the entire device stops operating.

[0008] As can be seen, the dust control device provided in this application guides the coal dust removed by the sweeper to a relatively sealed dust control area through the second roller brush structure. Utilizing the water-carrying properties of the roller brush, the coal dust is captured by water droplets or adhered to the brush bristles and carried into the water, thereby controlling dust dispersion and eliminating the risks of explosion and spontaneous combustion in the production site. It also reduces health hazards to operating personnel and minimizes air pollution around the coal transportation building. Furthermore, the dust control device provided in this application has a simple structure, requires low investment, and requires no additional electric equipment. It relies entirely on the power of the belt conveyor for linkage, effectively controlling dust while sweeping coal dust, thus achieving the purpose of dust control.

[0009] According to another aspect of this application, a dust control mechanism for a coal transport vehicle is provided, the coal transport vehicle including a belt in an inclined state and a cleaner disposed at the bottom end of the belt; The dust control mechanism includes the aforementioned dust control device and an auxiliary water circulation component. The dust control device is located on the dust diffusion path downstream of the sweeper. The water circulation component and the auxiliary water circulation component are sequentially arranged in the support frame along the direction close to the sweeper. The lower parts of the first roller brush structure and the second roller brush structure are respectively immersed in the water circulation component and the auxiliary water circulation component.

[0010] Compared with the prior art, the beneficial effects of the dust control mechanism of the coal transportation agency provided in this application are the same as the beneficial effects of the dust control device of the coal transportation agency provided, and will not be elaborated here.

[0011] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0012] The above and other objects, features, and advantages of this application will become more apparent from the more detailed description of the embodiments of this application in conjunction with the accompanying drawings. The accompanying drawings are used to provide a further understanding of the embodiments of this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof. In the accompanying drawings, the same reference numerals generally represent the same components or steps.

[0013] Figure 1 A schematic diagram of the dust control device according to an embodiment of this application is shown; Figure 2 A schematic diagram showing the installation positions of the dust control device and the coal transportation mechanism according to an embodiment of this application is provided. Figure 3 A top view of a dust control device according to an embodiment of this application is shown; Figure 4 A cross-sectional view of the dust control device according to an embodiment of this application is shown; Figure 5 A cross-sectional view of the right side view of a dust control device according to an embodiment of this application is shown; Figure 6 A schematic diagram showing the installation location of the dust control mechanism of the coal transportation mechanism according to an embodiment of this application is provided.

[0014] Figure label: 1-Coal transport mechanism; 101-Belt conveyor; 102-Sweeper; 2-Dust control device; 201-Support frame; 2011-Base plate; 2012-Side plate; 2013-Support rod; 202-Drive structure; 2021-Drive shaft; 2022-Rubber wheel; 2023-Drive gear; 203-First roller brush structure; 2031-First brush shaft; 2032-First bristles; 2033-First roller brush gear; 204-Second roller brush structure; 2041-Second brush shaft; 2042-Second bristles; 2043-Second roller brush gear; 205-Water-blocking and guiding assembly; a-Through hole ; 2051-Water baffle; 2052-Guide plate; 206-Water circulation assembly; b-Water inlet channel; 2061-Water tank; 2062-Float valve; 2063-Water inlet pipe; 207-First transmission structure; 2071-First transmission gear; 208-Second transmission structure; 2081-Second transmission gear; 209-Sewage pipe; 210-Sewage valve; 211-Adjusting structure; 2111-Adjusting bolt; 2112-Fixing base; 3-Dust control mechanism; 301-Connecting plate; 302-Auxiliary water circulation assembly; 303-Support base; c-Sewage discharge hole; d-Sewage discharge channel. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this application more apparent, exemplary embodiments according to this application will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this application, and not all embodiments of this application. It should be understood that this application is not limited to the exemplary embodiments described herein.

[0016] Coal mines, coal terminals, and coal-fired power plants typically have belt conveyor systems. After coal is unloaded from the belt, some loose coal often remains stuck to it. If this is not cleaned properly, it will result in resource waste and equipment wear.

[0017] In related technologies, multiple cleaners are installed on the belt to remove residue. However, the high-speed rotation of the belt and the cleaners can also generate dust. Furthermore, fine coal dust that remains on the belt after cleaning can travel with the belt to the tail end guide chute and rub against the rubber skirt along the lower edge of the guide chute, thus stirring up dust again.

[0018] To address the aforementioned problems, this application provides a dust control device for coal transportation organizations, capable of controlling dust dispersion, eliminating the risks of explosion and spontaneous combustion, and reducing health hazards for operators. Furthermore, the dust control device provided by this application has a simple structure, requires minimal investment, and requires no additional electrical equipment. It relies entirely on the power of the conveyor belt for linkage, effectively controlling dust while cleaning coal dust, thus achieving the purpose of dust control. Figure 1 A schematic diagram of the dust control device according to an embodiment of this application is shown. Figure 2 A schematic diagram showing the installation positions of the dust control device and the coal transportation mechanism according to an embodiment of this application is provided. Figure 3 A top view of a dust control device according to an embodiment of this application is shown. Figures 1 to 3 As shown, the coal transport mechanism 1 includes a horizontally positioned belt 101 and a sweeper 102 located at the bottom end of the belt 101. A dust control device 2 is located downstream of the sweeper 102 along the dust diffusion path. The dust control device 2 includes a support frame 201, a drive structure 202, a first roller brush structure 203, a second roller brush structure 204, a water-blocking and guiding assembly 205, a water circulation assembly 206, a first transmission structure 207, and a second transmission structure 208. The drive structure 202, the first roller brush structure 203, and the second roller brush structure 204 are rotatably mounted on the support frame 201 along the direction closest to the sweeper 102. The first transmission structure 207 is rotatably mounted on the support frame 201 and located between the drive structure 202 and the first roller brush structure 203. The second transmission structure 208 is rotatably mounted on the support frame 201. The drive structure 202 is rotatably connected to the first roller brush structure 203 via the first transmission structure 207 on the support frame 201 and between the first roller brush structure 203 and the second roller brush structure 204. The drive structure 202 is in contact with the belt 101 and is used to drive the first roller brush structure 203 to rotate under the action of friction. The first roller brush structure 203 is rotatably connected to the second roller brush structure 204 via the second transmission structure 208. The water circulation component 206 is disposed in the support frame 201. The lower parts of the first roller brush structure 203 and the second roller brush structure 204 are both immersed in the water circulation component 206. The water blocking and guiding component 205 is disposed at one end of the water circulation component 206 facing the sweeper 102 and extends to both sides of the second roller brush structure 204 and the first roller brush structure 203. The extended part of the water blocking and guiding component 205 is in contact with the belt 101.

[0019] In specific implementation, when the belt 101 is running in a horizontal state, the drive structure 202 in contact with the belt 101 begins to rotate under the action of friction. The drive structure 202 transmits power to the first roller brush structure 203 through the first transmission structure 207, causing the first roller brush structure 203 to rotate in the same direction as the belt 101. At the same time, the first roller brush structure 203 drives the second roller brush structure 204 to rotate synchronously through the second transmission structure 208, and the rotation direction of the second roller brush structure 204 is also the same as the belt 101. Then, the coal dust swept down by the sweeper 102 at the bottom of the belt 101 enters the dust control area formed by the water-blocking and guiding component 205, the water circulation component 206, and the belt 101 under the guidance of the rotation of the second roller brush structure 204. Because the extended part of the water-blocking and guiding component 205 is in contact with the belt 101, the dust control area is relatively sealed, preventing coal dust from overflowing. The lower part of the second roller brush structure 204 is immersed in the water of the water circulation component 206. As it rotates, it carries water, which serves two purposes: firstly, wets the belt 101, reducing dust generated during subsequent cleaning; secondly, the wet bristles adhere to some coal dust, which is then washed away and settled in the water when the bristles are immersed again. The lower part of the first roller brush structure 203 is also immersed in water, and the wet bristles further capture any coal dust in the dust control area that was not removed by the second roller brush structure 204, carrying it into the water for sedimentation, thus achieving effective dust control. When the belt 101 stops running, the drive structure 202 loses its frictional power and stops rotating. The first and second roller brush structures 203 and 204 also stop working under the linkage of the transmission structure, and the entire device stops operating.

[0020] As can be seen, the dust control device provided in this application guides the coal dust removed by the sweeper to a relatively sealed dust control area through the second roller brush structure. Utilizing the water-carrying properties of the roller brush, the coal dust is captured by water droplets or adhered to the brush bristles and carried into the water, thereby controlling dust dispersion and eliminating the risks of explosion and spontaneous combustion in the production site. It also reduces health hazards to operating personnel and minimizes air pollution around the coal transportation building. Furthermore, the dust control device provided in this application has a simple structure, requires low investment, and requires no additional electric equipment. It relies entirely on the power of the belt conveyor for linkage, effectively controlling dust while sweeping coal dust, thus achieving the purpose of dust control.

[0021] It is understandable that, since the rotation direction of the drive structure, the first roller brush structure and the second roller brush structure are the same as the running direction of the belt, when the belt runs in a clockwise direction, the running direction of the top of the belt is from left to right and the running direction of the bottom of the belt is from right to left. At this time, the drive structure, the first roller brush structure and the second roller brush structure all rotate in a counterclockwise direction.

[0022] It should be understood that the cleaner is located at the bottom end of the conveyor belt's unloading point, and is installed in a fixed position in the coal conveying system (such as below the head roller after the unloading point or on the return section of the conveyor belt), maintaining a relatively stationary contact with the belt. When the belt moves, the cleaner scrapes off residual coal fragments on the belt by contacting the moving belt surface and utilizing the relative motion between the two (the belt moves while the cleaner remains stationary), thereby achieving the cleaning function. Downstream of the cleaner refers to the area corresponding to the subsequent path of the belt moving away from the cleaner after the cleaner has completed its cleaning, based on the belt's running direction. Furthermore, the coal conveying mechanism mentioned in this application embodiment is prior art, and may include a cleaner, a redirecting roller, and a head cover, etc. Its specific connection method is not within the scope of protection of this application and is not limited here.

[0023] Figure 4 A cross-sectional view of the dust control device according to an embodiment of this application is shown. Figure 5 A cross-sectional view of the right side of a dust control device according to an embodiment of this application is shown. Figures 1 to 5 As shown, the support frame 201 in this embodiment includes a base plate 2011, two side plates 2012, and two support rods 2013. The two side plates 2012 are symmetrically distributed on both sides of the upper surface of the base plate 2011 along the centerline extending along the length direction of the base plate 2011, and are both perpendicular to the base plate 2011. The two ends of the support rods 2013 are perpendicularly connected to the inner surfaces of the two side plates near the base plate 2011, and are symmetrically distributed with the transverse centerline between the two side plates 2012 as the axis of symmetry. Each support rod 2013 is parallel to the base plate 2011. The drive structure 202 and the first roller brush structure... The two ends of the first brush structure 203 and the two ends of the second brush structure 204 are rotatably disposed between the two side plates 2012 along the direction close to the sweeper 102. The drive structure 202 is located above the support rod 2013. The first transmission structure 207 and the second transmission structure 208 are both disposed on the inner surface of each side plate 2012. The water circulation assembly 206 is disposed on the upper surface of the bottom plate 2011 and is located in the area between the two side plates 2012 and the two support rods 2013. The water blocking and guiding assembly 205 has through holes a for accommodating the first brush structure 203 and the second brush structure 204. It should be understood that when the belt 101 is running in a horizontal state, the bottom plate 2011 is in a state parallel to the belt 101.

[0024] In this embodiment, the base plate 2011 serves as the bottom foundation of the device, bearing the weight of the water circulation component 206 and all other components, and providing a stable mounting surface. The two side plates 2012 in this embodiment are symmetrically distributed along the centerline of the base plate 2011 and perpendicular to the base plate 2011. They support the ends of the first roller brush structure 203 and the second roller brush structure 204, and provide mounting surfaces for the first transmission structure 207 and the second transmission structure 208. Together with the base plate 2011 and the support rods 2013, they form the main frame, restricting lateral displacement of the components. The two support rods 2013 in this embodiment are located between the two side plates 2012, symmetrically distributed along the lateral centerline and parallel to the base plate 2011, with their ends perpendicularly connected to the side plates 2012 to support the two side plates 2012. In this embodiment, the drive structure 202 is rotatably mounted between two side plates 2012, in contact with the belt 101, and rotates by the friction of the belt 101. Power is transmitted to the first roller brush structure 203 via the first transmission structure 207, serving as the power source for the dust control device 2 and enabling synchronized start and stop with the belt 101. Specifically, the drive structure 202 moves when the belt 101 moves and stops when the belt 101 stops. The drive structure 202 is located above the support rod 2013. Specifically, the drive structure 202 is located directly above the support rod 2013 at the location away from the sweeper 102, and diagonally above the support rod 2013 at the location close to the sweeper 102. In this embodiment, the second roller brush structure 204 guides the coal dust removed by the sweeper 102 to the dust control area, using wet bristles to capture some of the coal dust and carry it into the water, while simultaneously wetting the belt 101 to reduce subsequent dust emission. In this embodiment, the first roller brush structure 203 captures the remaining coal dust in the dust control area and carries it into the water, enhancing the dust control effect. In this embodiment, the first transmission structure 207 and the second transmission structure 208 are both disposed on the inner surface of each side plate 2012 for transmitting power. The inner surface of each side plate 2012 refers to the inner sidewalls of the two opposing side plates 2012. The first transmission structure 207 connects the drive structure 202 and the first roller brush structure 203, and the second transmission structure 208 connects the first roller brush structure 203 and the second roller brush structure 204, ensuring that power is sequentially transmitted from the drive structure 202 to each roller brush structure, achieving synchronous rotation. The water circulation component 206 is located on the upper surface of the base plate 2011, in the area between the two side plates 2012 and the two support rods 2013. It provides a water source for the two roller brush structures, enabling the roller brushes to carry water to capture coal dust when they rotate, and simultaneously store the captured coal slurry to ensure continuous operation of the device. The upper surface of the base plate 2011 refers to the surface of the base plate 2011 facing the belt conveyor 101.The water-blocking and guiding component 205 has through holes a to accommodate the first roller brush structure 203 and the second roller brush structure 204, so that they can rotate normally; at the same time, the water-blocking and guiding component 205 can form a relatively sealed dust control area to prevent coal dust from overflowing and guide dust-laden air into the dust control area for the roller brush to capture.

[0025] In specific implementation, when the belt 101 is running, the drive structure 202 in contact with the belt 101 begins to rotate under the action of friction. Its rotation is transmitted to the first roller brush structure 203 through the first transmission structure 207 set on the inner surface of the side plate 2012, causing the first roller brush structure 203 to rotate in the same direction as the belt 101. When the first roller brush structure 203 rotates, the power is transmitted to the second roller brush structure 204 through the second transmission structure 208, causing the second roller brush structure 204 to rotate synchronously. Since the lower parts of the second roller brush structure 204 and the first roller brush structure 203 are both immersed in the water of the water circulation component 206, when the second roller brush structure 204 rotates, the water-laden bristles guide the coal dust removed by the sweeper 102 to the dust control area enclosed by the water-blocking and guiding component 205, the side plate 2012, the belt 101, and the water circulation component 206. Some of the coal dust is adhered to by the bristles and carried into the water. When the first roller brush structure 203 rotates, its wet bristles further capture any remaining coal dust in the dust control area that was not captured by the second roller brush structure 204, and carry it into the water. The water-blocking and guiding component 205 avoids the roller brush structure through the through hole a while ensuring that the dust control area is relatively sealed to prevent coal dust from overflowing. The water circulation component 206 continuously provides water to the roller brush. When the belt 101 stops running, the drive structure 202 loses power, and the entire device stops working.

[0026] For example, such as Figures 1 to 5 As shown, the drive structure 202 in this embodiment includes a drive shaft 2021, multiple rubber wheels 2022, and two drive gears 2023. The drive shaft 2021 is rotatably disposed between two side plates 2012 and located above the corresponding support rod 2013. The axis of the drive shaft 2021 is parallel to the axis of the corresponding support rod 2013. The multiple rubber wheels 2022 are evenly sleeved on the drive shaft 2021. The two drive gears 2023 are respectively sleeved at both ends of the drive shaft 2021 and located between adjacent rubber wheels 2022 and the corresponding side plates 2012. The drive gears 2023 are rotatably connected to the first roller brush structure 203 through a first transmission structure 207. It should be understood that the corresponding support rod 2013 refers to the support rod 2013 located away from the sweeper 102.

[0027] In this embodiment, the drive shaft 2021 is rotatably mounted between two side plates 2012, with its axis parallel to the axis of the corresponding support rod 2013. Serving as the mounting carrier for the rubber wheels 2022 and drive gears 2023, it converts the frictional force on the rubber wheels 2022 into its own rotational motion and transmits the rotational power to the drive gears 2023 at both ends. In this embodiment, multiple rubber wheels 2022 are evenly mounted on the drive shaft 2021, directly contacting the belt 101. They utilize the frictional force with the belt 101 to obtain power, driving the drive shaft 2021 to rotate, ensuring that the drive structure 202 can stably obtain power from the belt 101. Specifically, because the multiple rubber wheels 2022 are evenly distributed, balanced force is ensured, avoiding insufficient friction at single points. In this embodiment, the two drive gears 2023 are respectively sleeved on both ends of the drive shaft 2021 and located between the adjacent rubber wheel 2022 and the corresponding side plate 2012. By cooperating with the first transmission structure 207, the rotational power of the drive shaft 2021 is transmitted to the first roller brush structure 203, thereby realizing the transmission of power from the drive structure 202 to the first roller brush structure 203.

[0028] In specific implementation, when the belt 101 is running, the belt 101 contacts multiple rubber wheels 2022 sleeved on the drive shaft 2021. Under the action of friction, the rubber wheels 2022 drive the drive shaft 2021 to rotate. When the drive shaft 2021 rotates, the two drive gears 2023 at its two ends rotate synchronously. The drive gears 2023 transmit rotational power to the first roller brush structure 203 through the first transmission structure 207 set on the inner surface of the side plate 2012, causing the first roller brush structure 203 to rotate in the same direction as the belt 101. During the rotation of the first roller brush structure 203, its lower part is immersed in the water of the water circulation component 206. The wet bristles capture the coal dust in the dust control area and carry the coal dust into the water. At the same time, the first roller brush structure 203 drives the second roller brush structure 204 to rotate through the second transmission structure 208. The second roller brush structure 204 guides the coal dust into the dust control area and assists in its capture. Together with the relatively sealed space formed by the water blocking and guiding component 205, effective control of the coal dust is achieved.

[0029] When the belt 101 stops running, the rubber wheel 2022 loses friction, the drive shaft 2021 stops rotating, and the drive gear 2023, the first roller brush structure 203 and the second roller brush structure 204 all stop working, and the entire device stops running.

[0030] In practical applications, the drive shaft in this embodiment is rotatably mounted between two side plates via bearings. For example, mounting holes adapted to the diameter of the drive shaft are respectively formed on the inner sidewalls of the two opposing side plates, and bearings are installed in the holes with an interference fit. The outer ring of the bearing is fixed to the mounting holes of the side plates, and the inner ring is interference-fitted to both ends of the drive shaft, enabling the drive shaft to be rotatably connected to the side plates via the bearings. It should be understood that the specific bearing installation method is prior art and can be adjusted according to actual conditions, and is not specifically limited here.

[0031] For example, such as Figures 1 to 5 As shown, the first roller brush structure 203 in this embodiment includes a first brush shaft 2031, first brush bristles 2032, and two first roller brush gears 2033; the first brush bristles 2032 are sleeved on the middle part of the first brush shaft 2031, and the two first roller brush gears 2033 are respectively sleeved on both ends of the first brush shaft 2031 and located between the first brush bristles 2032 and the corresponding side plate 2012; the second roller brush structure 204 includes a second brush shaft 2041, second brush bristles 2042, and two second roller brush gears 2043; the first brush shaft 2031 and the second brush shaft 2041 are rotatably disposed between the two side plates 2012 along the direction close to the cleaner 102, the second brush bristles 2042 are sleeved on the middle part of the second brush shaft 2041, and the two second roller brush gears 2043 are respectively sleeved on both ends of the second brush shaft 2041 and located between the second brush bristles 2042 and the corresponding side plate 2012; The drive gear 2023 is rotatably connected to the first roller brush gear 2033 through the first transmission structure 207. The first roller brush gear 2033 is rotatably connected to the second roller brush gear 2043 through the second transmission structure 208. The water blocking and guiding assembly 205 is provided with a through hole a to accommodate the first brush shaft 2031 and the second brush shaft 2041 to avoid interference.

[0032] In this embodiment, the first brush shaft 2031 is disposed between the two side plates 2012, serving as the core support and rotation carrier of the first roller brush structure 203. It provides the mounting base for the first brush bristles 2032 and the first roller brush gear 2033, and its own rotation drives the first brush bristles 2032 and the first roller brush gear 2033 to move synchronously. In this embodiment, the first brush bristles 2032 are sleeved in the middle of the first brush shaft 2031 and are the components that directly contact the coal dust, the belt 101, and the water circulation assembly 206. Through rotation, they capture the coal dust (e.g., adhering to the coal dust and carrying it into the water), while simultaneously cooperating with the dust control area to complete dust control. In this embodiment, two first roller brush gears 2033 are respectively sleeved at both ends of the first brush shaft 2031 and located between the first brush bristles 2032 and the corresponding side plates 2012. Their function is to transmit power: on the one hand, they receive rotational power from the drive gear 2023 through the first transmission structure 207, driving the first brush shaft 2031 to rotate; on the other hand, they transmit power to the second roller brush gear 2043 of the second roller brush structure 204 through the second transmission structure 208, realizing the linkage between the first roller brush structure 203 and the second roller brush structure 204. In this embodiment, the second brush shaft 2041 is set between the two side plates 2012, serving as the core support and rotation carrier of the second roller brush structure 204, providing an installation base for the second brush bristles 2042 and the second roller brush gear 2043, and driving the second brush bristles 2042 and the second roller brush gear 2043 to move synchronously through its own rotation. In this embodiment, the second bristle 2042 is sleeved in the middle of the second brush shaft 2041. Similar to the first bristle 2032, it directly participates in the coal dust collection process, working with the first bristle 2032 to remove coal dust from the dust control area (e.g., guiding coal dust into the dust control area or collecting remaining coal dust). In this embodiment, two second roller brush gears 2043 are respectively sleeved at both ends of the second brush shaft 2041 and located between the second bristle 2042 and the corresponding side plate 2012. Their function is to receive power: through the second transmission structure 208, they receive the rotational power from the first roller brush gear 2033, driving the second brush shaft 2041 to rotate, thus realizing the operation of the second roller brush structure 204. The bristles and brush shaft of the two roller brush structures do not require a large amount of power. To reduce transmission resistance and equipment weight, the first roller brush gear 2033 and the second roller brush gear 2043 can be made of polyurethane, hard plastic, composite materials, etc.

[0033] In specific implementation, when the drive gear 2023 of the drive structure 202 rotates, the rotational power is transmitted to the first roller brush gear 2033 of the first roller brush structure 203 through the first transmission structure 207, driving the first brush shaft 2031 to rotate in the same direction as the belt 101. Simultaneously with the rotation of the first brush shaft 2031, the first brush bristles 2032 in the middle rotate synchronously and begin to participate in the coal dust collection work.

[0034] Simultaneously, the first roller brush gears 2033 at both ends of the first brush shaft 2031 transmit rotational power to the second roller brush gear 2043 of the second roller brush structure 204 via the second transmission structure 208, causing the second brush shaft 2041 to rotate in the same direction as the belt 101. When the second brush shaft 2041 rotates, the second brush bristles 2042 in the middle rotate synchronously, working in conjunction with the first brush bristles 2032. For example, if the coal dust captured by the first brush bristles 2032 is not completely removed, the second brush bristles 2042 further captures the remaining coal dust or guides the coal dust into the dust control area, ultimately achieving effective control of the coal dust generated during the cleaning process.

[0035] When the belt 101 stops running, the drive gear 2023 stops rotating, and the first transmission structure 207, the first roller brush gear 2033, the first brush shaft 2031, the first brush bristles 2032, the second transmission structure 208, the second roller brush gear 2043, the second brush shaft 2041, and the second brush bristles 2042 all stop moving, and the entire device stops working.

[0036] For example, in this embodiment, the length of the first bristle 2032 is shorter than the length of the second bristle 2042, and the first bristle 2032 is denser than the second bristle 2042. The core function of the second bristle 2042 is to guide the coal dust and dust-laden air generated by the sweeper 102 to the dust control area, and to achieve initial cleaning through slight contact with the belt 101. At the same time, the bristles wet the surface of the belt 101 to reduce subsequent dust. The longer bristles can make more thorough contact with the surface of the belt 101, ensuring cleaning and wetting effects; at the same time, the longer bristles form a larger "fan" when rotating, which can more effectively "push" the coal dust and dust-laden air into the dust control area, preventing dust from overflowing. The core function of the first bristle 2032 is to capture residual coal dust in the dust control area, and its bristles are usually denser. Shorter bristles reduce interference with airflow within the dust control area, allowing water droplets carried by the bristles to concentrate more within the dust control area, thus improving the collection efficiency of residual coal dust. At the same time, the short bristles, combined with their dense arrangement, can more effectively "intercept" coal dust, preventing it from escaping through the gaps between the bristles due to excessively long bristles.

[0037] The first and second bristles are made of wear-resistant elastic materials, such as polyurethane, rubber, or metal, but are not limited to these materials.

[0038] In one alternative approach, such as Figures 1 to 5 As shown, the first transmission structure 207 in this embodiment includes at least one first transmission gear 2071. The first transmission gear 2071 is rotatably disposed on the side plate 2012. The drive gear 2023 meshes with one end of the first transmission structure 207, and the other end of the first transmission gear 2071 meshes with one end of the first roller brush gear 2033. The second transmission structure 208 includes at least one second transmission gear 2081, which is rotatably mounted on the side plate 2012. The other end of the first roller brush gear 2033 meshes with one end of the second transmission gear 2081, and the other end of the second transmission gear 2081 meshes with the second roller brush gear 2043.

[0039] It is understandable that when there is only one second transmission gear 2081 and one first transmission gear 2071, the rotation direction of the drive gear and the rotation direction of the first roller brush gear 2033 are opposite to the rotation direction of the first transmission gear 2071; the rotation direction of the first roller brush gear 2033 and the rotation direction of the second roller brush gear 2043 are both opposite to the rotation direction of the second transmission gear 2081.

[0040] When there are multiple second transmission gears 2081 and first transmission gears 2071, the rotation directions of adjacent second transmission gears 2081 are opposite, and the rotation directions of adjacent first transmission gears 2071 are opposite.

[0041] In practical applications, the required roller brush speed can be obtained by setting the diameter of the first transmission gear 2071 and the diameter of the second transmission gear 2081, allowing the first roller brush gear 2033 and the second roller brush gear 2043 to have different speeds.

[0042] For example: The first transmission gear 2071 connects the drive gear 2023 and the first roller brush gear 2033 to form a single-stage transmission. With the diameters of the drive gear 2023 and the first roller brush gear 2033 fixed, decreasing the diameter of the first transmission gear 2071 increases both the rotational speed of the first transmission gear 2071 and the rotational speed of the first roller brush gear 2033; conversely, increasing the diameter of the first transmission gear 2071 decreases both the rotational speed of the first transmission gear 2071 and the rotational speed of the first roller brush gear 2033.

[0043] The second transmission gear 2081 connects the first roller brush gear 2033 and the second roller brush gear 2043, forming a two-stage transmission. With the diameters of the first roller brush gear 2033 and the second roller brush gear 2043 fixed, decreasing the diameter of the second transmission gear 2081 increases both the rotational speed of the second transmission gear 2081 and the rotational speed of the second roller brush gear 2043; conversely, increasing the diameter of the second transmission gear 2081 decreases both its rotational speed and the rotational speed of the second roller brush gear 2043.

[0044] In practical applications, if the diameter of the rubber wheel 2022 is close to the diameter of the coaxial drive gear 2023, the tangential velocity of the edge of the drive gear 2023 will be close to the speed of the belt 101. By setting the radius of the first bristle 2032 and the second bristle 2042, the desired tangential velocity at the radius of the first bristle 2032 and the second bristle 2042 can be obtained, allowing the first roller brush structure 203 and the second roller brush structure 204 to have different tangential velocities.

[0045] It is understood that the first transmission gear 2071 is rotatably mounted via a first transmission gear shaft 2072 and a bearing, and the second transmission gear 2081 is rotatably mounted via a second transmission gear shaft 2082 and a bearing. The specific mounting method is existing technology. For example, mounting holes or bearing seats can be correspondingly provided on the inner surface of the side plate 2012 to accommodate the two ends of the gear shafts. The first transmission gear 2071 and the second transmission gear 2081 are respectively fixedly sleeved on their respective gear shafts. The two ends of the gear shafts are connected to the mounting holes or bearing seats of the side plate 2012 via bearings. The outer ring of the bearing is fixed to the side plate 2012, and the inner ring mates with the gear shaft, allowing the gear shaft to drive the gears to rotate freely around their own axis. The axis of the gear shaft must be perpendicular to the side plate 2012 to ensure that the first transmission gear 2071 can accurately mesh with the drive gear 2023 and the first roller brush gear 2033, and the second transmission gear 2081 can accurately mesh with the first roller brush gear 2033 and the second roller brush gear 2043 to achieve power transmission.

[0046] It should be understood that Figures 1 to 5 The bearings of the first transmission gear 2071 and the second transmission gear 2081 in the embodiments of this application are omitted. Figure 1 and Figure 2 The first transmission structure 207 and the second transmission structure 208 are omitted. In this embodiment, the first transmission structure 207 can also be a belt drive structure or a chain drive structure, which can be adjusted according to the actual situation and is not limited here.

[0047] In one alternative approach, such as Figures 1 to 5 As shown, the water circulation component 206 in this embodiment includes a water tank 2061, a float valve 2062, and a water inlet pipe 2063. The water inlet end of the water inlet pipe 2063 is connected to an external water source. The water tank 2061 has a water inlet channel b at one end facing the cleaner 102 to accommodate the water inlet pipe 2063. The water outlet end of the water inlet pipe 2063 passes through the water inlet channel b and extends into its interior, and is located in the area between the water inlet channel b and the water-blocking and guiding component 205 inside the water tank 2061. The float valve 2062 is disposed on the water outlet end of the water inlet pipe 2063 to control the water level of the water tank 2061. The lower part of the first bristle 2032 and the lower part of the second bristle 2042 are both immersed in the water tank 2061.

[0048] In this embodiment, the water tank 2061 serves as a water storage container, providing water for the first bristles 2032 and the second bristles 2042. Its internal space holds water, allowing the lower parts of the first bristles 2032 and the second bristles 2042 to be submerged. Simultaneously, the water tank 2061 collects coal dust trapped by the bristles, forming coal slurry, which is the core carrier for the entire water cycle and coal dust collection. In this embodiment, the float valve 2062 is located at the outlet of the inlet pipe 2063. It controls the opening and closing of the inlet pipe 2063 by sensing changes in the water level within the water tank 2061: when the water level in the water tank 2061 is lower than a set value, the float valve 2062 opens, allowing external water to enter; when the water level reaches the set value, the float valve 2062 closes, stopping water intake, thereby regulating the water level in the water tank 2061 and ensuring that the bristles are always submerged in water.

[0049] For example, such as Figures 1 to 5 As shown, the dust control device 2 in this embodiment further includes a sewage pipe 209 and a sewage valve 210. A sewage through-hole c is provided at the bottom of the water tank 2061, and a sewage channel d is provided on the base plate 2011 to accommodate the sewage pipe 209. The inlet end of the sewage pipe 209 is connected to the interior of the water tank 2061, and the sewage channel d is connected to the sewage through-hole c. The outlet end of the sewage pipe 209 passes through the sewage channel d and extends to the outside of the base plate 2011. The sewage valve 210 is located on the outlet end of the sewage pipe 209. It should be understood that the extension direction of the sewage channel d in this embodiment is not limited to the direction shown in the figure and can be adjusted according to actual conditions, as long as the sewage pipe 209 can extend along the sewage channel d to the outside of the base plate 2011. No limitation is made here.

[0050] In this embodiment, the drain hole c is located at the bottom of the water tank 2061, serving as a channel for the discharge of coal sludge deposited inside the water tank 2061, allowing the coal sludge to flow from inside the water tank 2061 into the drain pipe 209. In this embodiment, the drain channel d is located on the base plate 2011, accommodating the drain pipe 209 and providing space for the drain pipe 209 to extend from the bottom of the water tank 2061 to the outside of the base plate 2011. In this embodiment, the inlet end of the drain pipe 209 is connected to the inside of the water tank 2061 via the drain hole c, and the outlet end extends through the drain channel d to the outside of the base plate 2011, serving as a transport channel for coal sludge and wastewater, discharging the coal sludge deposited inside the water tank 2061 to the outside of the device. In this embodiment, the drain valve 210 is installed at the outlet end of the drain pipe 209 and is used to control the opening and closing of the drain pipe 209: when closed, it blocks the drain path and ensures that the water tank 2061 stores water normally; when opened, it allows coal sludge and sewage to be discharged through the drain pipe 209, thereby achieving the cleaning and maintenance of the water tank 2061.

[0051] In practical applications, the inlet end of the sewage pipe 209 is sealed to the sewage outlet c via a sealing ring to prevent leakage. Furthermore, a sewage ditch should be provided so that the outlet end of the sewage pipe 209 is connected to the sewage ditch.

[0052] In one alternative approach, such as Figures 1 to 5 As shown, the water-blocking and guiding assembly 205 in this embodiment includes a water-blocking plate 2051 and two guide plates 2052. The water-blocking plate 2051 is disposed between the inner walls of the left and right sides of the water tank 2061 along the width direction of the water tank 2061, and is located between the outlet end of the second roller brush structure 204 and the water inlet pipe 2063. The two guide plates 2052 are symmetrically disposed at both ends of the portion of the water-blocking plate 2051 extending outside the water tank 2061, and extend to both sides of the second brush bristles 2042 and the first brush bristles 2032, thereby forming a lateral barrier to prevent coal dust from overflowing and spreading from both sides of the roller brush. Furthermore, it can also guide the coal dust generated by the sweeper 102 to concentrate in the working area of ​​the roller brush, ensuring that the coal dust is effectively captured. Each guide plate 2052 has a through hole a for accommodating the first brush shaft 2031 and the second brush shaft 2041, providing rotation space for the first brush shaft 2031 and the second brush shaft 2041 and avoiding obstruction of the normal operation of the roller brush structure. It should be understood that the surface of the guide plate 2052 can be either flat or curved, and can be adjusted according to actual conditions; no limitation is made here. To better illustrate the connection relationships of other components, in Figure 3 The water baffle 2051 is omitted from the text.

[0053] In this embodiment, the second bristles 2042 can be sparser than the first bristles 2032, with the bristle tips only needing slight contact with the belt 101. When the tangential velocity of the second bristles 2042 is higher than the speed of the belt 101, the second bristles 2042 have a cleaning effect on the belt 101. Simultaneously, it also helps guide dust-laden air into the dust control area. The guide vane 2052 can also be made of a wear-resistant, tough, and somewhat elastic material. The guide vane 2052 only needs slight contact with the belt 101; its function is simply to prevent coal dust entering the dust control area from overflowing.

[0054] In this embodiment, most of the bristles of the lower half of the second roller brush structure 204 are immersed in water. When the second roller brush structure 204 rotates and discharges water, the water carried out is deflected back to the water tank 2061 by the water baffle 2051. A small amount of water adhering to the second bristles 2042 is thrown onto the belt 101 under centrifugal force. After the belt 101 is wetted, the subsequent sweeper 102 is less likely to generate dust. The wet bristles also make it easier for coal dust to adhere to them when rotating, and when they re-enter the water, the coal dust can be washed off.

[0055] In this embodiment, the first roller brush structure 203 does not use a water baffle 2051. The water carried out by the first brush bristles 2032 after exiting the water flow is all sprayed onto the dust control area, which perfectly captures the incoming coal dust. The first brush bristles 2032 are arranged more densely, so that when rotating backward, they capture the coal dust that has not been removed from the dust control area.

[0056] In one alternative approach, such as Figures 1 to 5 As shown, the dust control device 2 in this embodiment further includes an adjustment structure 211, which is located at the bottom of the base plate 2011 near the drive structure 202, and is used to adjust the contact pressure between the drive structure 202 and the belt 101. It should be understood that the adjustment structure 211 is small in size and will only cause the dust control device 2 to tilt slightly, without compromising the overall stability of the device.

[0057] Understandably, the adjusting structure 211 can consist of an adjusting bolt 2111 and a fixed seat 2112: the adjusting bolt 2111 is threaded onto the fixed seat 2112, and the end of the adjusting bolt 2111 facing away from the fixed seat 2112 abuts against the bottom of the base plate 2011. By rotating the adjusting bolt 2111, its extension length is changed, thereby adjusting the contact pressure between the drive structure 202 and the belt 101.

[0058] This application also provides a dust control mechanism for a coal transportation organization. Figure 6 A schematic diagram showing the installation location of the dust control mechanism in a coal transportation system according to an embodiment of this application is provided. Figures 1 to 6 As shown, the coal transport mechanism 1 includes a belt 101 in an inclined state and a cleaner 102 disposed at the bottom end of the belt 101. The dust control mechanism 3 includes the aforementioned dust control device 2, connecting plate 301, and auxiliary water circulation assembly 302. The dust control device 2 is located downstream of the sweeper 102 in the dust diffusion path. The water circulation assembly 206 and the auxiliary water circulation assembly 302 are sequentially arranged within the support frame 201 along the direction close to the sweeper 102. The lower parts of the first roller brush structure 203 and the second roller brush structure 204 are respectively immersed in the water circulation assembly 206 and the auxiliary water circulation assembly 302. The water circulation assembly 206 is connected to the auxiliary water circulation assembly 302 through the connecting plate 301. The structure of the auxiliary water circulation assembly 302 is the same as that of the water circulation assembly 206.

[0059] In this embodiment, the inclined belt 101 runs upwards along the incline. For the inclined belt 101, the water circulation component 206 and the auxiliary water circulation component 302 are connected as a single unit by a connecting plate, thus forming a complete dust control area with the belt 101 and the guide plate 2052. When the belt 101 runs upwards at an incline, the base plate of this embodiment is positioned on the inclined plane to ensure better contact of the entire dust control device. To ensure the stability of the overall structure, two support bases 303 can be provided on the base plate to support the auxiliary water circulation component 302 and the water circulation component 206. The structure of the support base 303 can be any structure capable of providing support and can be adjusted according to actual conditions; no limitation is made here.

[0060] Furthermore, when the belt 101 is tilted upward, the operation process and principle of the dust control mechanism 3 are the same as those of the dust control device 2 when the belt 101 is horizontally set, and will not be repeated here.

[0061] It is worth noting that, in order to better illustrate the connection relationships of other components, in Figure 6 The float valve and drain valve, which are components that enable water replenishment and coal sludge removal, have been omitted. Furthermore, this dust control mechanism 3 does not include an adjustment structure. Figure 1 , Figure 2 , Figure 4 and Figure 6 The deflector on one side is omitted in both models.

[0062] The above description is merely a specific embodiment of this application. Obviously, various modifications and combinations can be made without departing from the spirit and scope of this application. Accordingly, this specification and accompanying drawings are merely exemplary illustrations of this application as defined by the appended claims, and are considered to cover any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and modifications of this application fall within the scope of the claims of this application and their equivalents, the intent of this application includes these modifications and modifications. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the stated claims.

[0063] It should also be noted that in the apparatus and method of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0064] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0065] The above description has been given for illustrative and descriptive purposes. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although several exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations therein.

Claims

1. A dust control device for a coal transportation mechanism, characterized in that, The coal transport mechanism includes a horizontally positioned conveyor belt and a sweeper located at the bottom end of the conveyor belt. The dust control device is located downstream of the sweeper in the dust diffusion path, and the dust control device includes: The system comprises a support frame, a drive structure, a first roller brush structure, a second roller brush structure, a water-blocking and guiding component, a water circulation component, a first transmission structure, and a second transmission structure. The drive structure, the first roller brush structure, and the second roller brush structure are rotatably mounted on the support frame in sequence along the direction closest to the sweeper. The first transmission structure is rotatably mounted on the support frame and located between the drive structure and the first roller brush structure. The second transmission structure is rotatably mounted on the support frame and located between the first roller brush structure and the second roller brush structure. The drive structure is connected via the first transmission structure. The drive structure is rotatably connected to the first roller brush structure, and the drive structure contacts the belt to drive the first roller brush structure to rotate under the action of friction. The first roller brush structure is rotatably connected to the second roller brush structure through the second transmission structure. The water circulation assembly is disposed in the support frame. The lower parts of the first roller brush structure and the lower parts of the second roller brush structure are both immersed in the water circulation assembly. The water blocking and guiding assembly is disposed at one end of the water circulation assembly facing the sweeper and extends to both sides of the second roller brush structure and the first roller brush structure. The extended part of the water blocking and guiding assembly contacts the belt.

2. The dust control device according to claim 1, characterized in that, The support frame includes a base plate, two side plates, and two support rods. The two side plates are symmetrically distributed on both sides of the upper surface of the base plate along the centerline extending along the length of the base plate, and are perpendicular to the base plate. The two ends of the support rods are perpendicularly connected to the inner surfaces of the two side plates near the base plate, and are symmetrically distributed with the transverse centerline between the two side plates as the axis of symmetry. Each support rod is parallel to the base plate. The two ends of the drive structure, the first roller brush structure, and the second roller brush structure are rotatably disposed between the two side plates along the direction close to the cleaner. The drive structure is located above the support rods. The first transmission structure and the second transmission structure are both disposed on the inner surface of each side plate. The water circulation assembly is disposed on the upper surface of the base plate and is located in the area between the two side plates and the two support rods. The water-blocking and guiding assembly has through holes for accommodating the first roller brush structure and the second roller brush structure.

3. The dust control device according to claim 2, characterized in that, The driving structure includes a driving shaft, multiple rubber wheels, and two driving gears. The driving shaft is rotatably disposed between the two side plates and above the corresponding support rod. The axis of the driving shaft is parallel to the axis of the corresponding support rod. The multiple rubber wheels are evenly sleeved on the driving shaft. The two driving gears are respectively sleeved at both ends of the driving shaft and located between adjacent rubber wheels and the corresponding side plates. The driving gears are rotatably connected to the first roller brush structure through the first transmission structure.

4. The dust control device according to claim 3, characterized in that, The first roller brush structure includes a first brush shaft, first brush bristles, and two first roller brush gears; the first brush bristles are sleeved on the middle part of the first brush shaft, and the two first roller brush gears are respectively sleeved on both ends of the first brush shaft and located between the first brush bristles and the corresponding side plates; the second roller brush structure includes a second brush shaft, second brush bristles, and two second roller brush gears; the first brush shaft and the second brush shaft are rotatably disposed between the two side plates along the direction close to the cleaner, the second brush bristles are sleeved on the middle part of the second brush shaft, and the two second roller brush gears are respectively sleeved on both ends of the second brush shaft and located between the second brush bristles and the corresponding side plates; The drive gear is rotatably connected to the first roller brush gear through the first transmission structure, and the first roller brush gear is rotatably connected to the second roller brush gear through the second transmission structure. The water-blocking and guiding assembly has a through hole for accommodating the first brush shaft and the second brush shaft.

5. The dust control device according to claim 4, characterized in that, The length of the first bristle is shorter than the length of the second bristle, and the first bristle is denser than the second bristle.

6. The dust control device according to claim 4, characterized in that, The first transmission structure includes at least one first transmission gear, which is rotatably disposed on the side plate. The drive gear meshes with one end of the first transmission structure, and the other end of the first transmission gear meshes with one end of the first roller brush gear. The second transmission structure includes at least one second transmission gear, which is rotatably disposed on the side plate. The other end of the first roller brush gear meshes with one end of the second transmission gear, and the other end of the second transmission gear meshes with the second roller brush gear.

7. The dust control device according to claim 4, characterized in that, The water circulation assembly includes a water tank, a float valve, and an inlet pipe. The inlet end of the inlet pipe is connected to an external water source. The end of the water tank facing the cleaner has an inlet channel to accommodate the inlet pipe. The outlet end of the inlet pipe passes through the inlet channel and extends into it, and is located in the area between the inlet channel and the water-blocking and guiding assembly inside the water tank. The float valve is located on the outlet end of the inlet pipe and is used to control the water level in the water tank. The lower parts of the first bristles and the lower parts of the second bristles are both immersed in the water tank.

8. The dust control device according to claim 7, characterized in that, The dust control device also includes a sewage pipe and a sewage valve. The bottom of the water tank is provided with a sewage through hole, and the bottom plate is provided with a sewage channel to accommodate the sewage pipe. The inlet end of the sewage pipe is connected to the inside of the water tank, and the sewage channel is connected to the sewage through hole. The outlet end of the sewage pipe passes through the sewage channel and extends to the outside of the bottom plate. The sewage valve is provided on the outlet end of the sewage pipe.

9. The dust control device according to claim 7, characterized in that, The water-blocking and guiding assembly includes a water-blocking plate and two guide plates. The water-blocking plate is disposed between the inner sidewalls of the left and right sides of the water tank along the width direction of the water tank, and is located between the second roller brush structure and the outlet end of the water inlet pipe. The two guide plates are symmetrically disposed at both ends of the portion of the water-blocking plate extending outside the water tank, and extend to both sides of the second brush bristles and the first brush bristles. Each guide plate is provided with a through hole for accommodating the first brush shaft and the second brush shaft.

10. The dust control device according to any one of claims 2 to 9, characterized in that, The dust control device also includes an adjustment structure, which is located at the bottom of the base plate near the drive structure and is used to adjust the contact pressure between the drive structure and the belt.

11. A dust control mechanism for a coal transportation organization, characterized in that, The coal transport mechanism includes an inclined belt and a sweeper located at the bottom of the belt. The dust control mechanism includes a dust control device, a connecting plate, and an auxiliary water circulation assembly as described in any one of claims 1 to 9. The dust control device is located on the dust diffusion path downstream of the sweeper. The water circulation assembly and the auxiliary water circulation assembly are sequentially arranged in the support frame along the direction close to the sweeper. The lower parts of the first roller brush structure and the second roller brush structure are respectively immersed in the water circulation assembly and the auxiliary water circulation assembly. The water circulation assembly is connected to the auxiliary water circulation assembly through the connecting plate.

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