A pre-filled self-excited dust removal device

Abstract

This invention relates to the field of dust removal technology and discloses a pre-filled self-excited dust removal device, including a base, polishing wheels symmetrically mounted on the outer surface of the base, a fan module mounted on the top of the base, a sloping water tank mounted on the bottom of the base, a water trough assembly mounted above the sloping water tank, a pre-wetting module mounted inside the sloping water tank, the pre-wetting module being interconnected with the sloping water tank and the water trough assembly, guide shells mounted on both the upper and lower sides of the polishing wheels, and a water mist separation plate assembly mounted above the water trough assembly. By pre-wetting the water trough assembly before startup, the generation of dry dust is effectively suppressed. Compared to traditional dust removal devices where dry metal dust in the chamber is rapidly raised to the explosive limit concentration upon fan startup, potentially causing an explosion upon contact with a ignition source, this device greatly reduces the flying of metal dust, fundamentally reducing the risk of explosion, preventing equipment damage, production facility damage, and fires, effectively ensuring the safety of on-site personnel and reducing economic losses.

Description

Technical Field

[0001] This invention relates to the field of dust removal technology, specifically a pre-filled self-excited dust removal device. Background Art

[0002] Grinding equipment is a type of mechanical tool used for surface treatment. Its main functions include material grinding, polishing, and finishing, and it has significant applications in industrial manufacturing, construction, and artistic creation. The equipment mainly consists of core components such as a power system, a rotating grinding wheel, a support structure, and a control system. During operation, the high-speed friction between the grinding wheel and the workpiece generates significant particulate matter pollution. These suspended particles not only reduce processing accuracy but also cause environmental pollution and threaten the safety and health of workers.

[0003] However, existing self-excited dust collection devices still have some problems. In the initial stage of dust treatment, when traditional dust collection devices start the fan structure to absorb dust, the airflow state inside the chamber is extremely unstable at the moment of startup. At this time, the dry metal dust accumulated inside the chamber will be quickly lifted up by the strong suction of the fan, forming dust. Because metal dust has flammable and explosive properties, especially in a relatively enclosed space, the flying metal dust can easily reach the explosive limit concentration. Once it encounters a source of ignition such as static sparks or sparks generated by equipment friction, it will cause a violent explosion. This will not only cause devastating damage to the grinding equipment, damaging equipment parts and deforming the structure, leading to the scrapping of the equipment, but also cause serious damage to surrounding production facilities, and may even cause a fire, endangering the lives of on-site workers and causing incalculable casualties and economic losses.

[0004] Furthermore, during the grinding process, the polishing stage introduces a large amount of impurities into the water tank. These impurities include metal shavings, tiny particles from abrasive wear, and other contaminants generated during processing. The water pump needs to operate continuously for extended periods to ensure the dust removal device functions properly. However, these impurities constantly erode and wear down critical pump components such as the impeller, pump shaft, and seals. Wear on the impeller alters the shape and size of its blades, significantly reducing the pump's pumping efficiency and failing to meet the required water volume and pressure for dust removal. Wear on the pump shaft causes vibration and noise during operation, further affecting equipment stability and potentially leading to pump seizure and malfunction. Damaged seals result in water leakage, wasting water resources and potentially damaging the electrical system, causing short circuits and other malfunctions. Frequent failures necessitate frequent pump repairs or replacements, increasing maintenance costs and causing frequent downtime of the grinding equipment, reducing production efficiency and disrupting the company's normal production schedule.

[0005] Therefore, this invention proposes a pre-filled self-excited dust removal device. Summary of the Invention

[0006] The purpose of this invention is to provide a pre-filled self-excited dust removal device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a pre-filled self-excited dust removal device, comprising a base, polishing wheels symmetrically mounted on the outer surface of the base, a fan module mounted on the top of the base, a sloping water tank mounted on the bottom of the base, a water trough assembly mounted above the sloping water tank, a pre-humidification module mounted inside the sloping water tank, the pre-humidification module being interconnected with the sloping water tank and the water trough assembly, guide shells mounted on both the upper and lower sides of the polishing wheels, and a water mist separation plate assembly mounted above the water trough assembly;

[0008] The pre-humidification module is activated in advance. Through its connection with the slope water tank and water tank assembly, water from the slope water tank is transported to the water tank assembly to pre-humidify the water tank assembly. Then, the fan module is activated to start the dust collection operation and the pre-humidification module is stopped after a delay. This operation aims to effectively suppress the generation of dry dust and reduce dust during the dust collection process by pre-humidifying the water tank assembly.

[0009] Preferably, the water tank assembly includes a water flow tank and a water collection chamber. The water flow tank is fixedly installed inside the machine base on one side near the polishing wheel, and has holes on both sides that communicate with the inclined water tank. The water collection chamber is fixedly installed inside the machine base and is located above the pre-wetting module.

[0010] Preferably, the pre-wetting module includes a water pump, which is installed in the middle of the inclined water tank and located on the side away from the polishing wheel. It is connected to the water collection chamber through an external pipe one. An external pipe two is fixedly connected to the bottom of the water collection chamber, and its other side is connected to the water flow channel. An external nozzle is installed at the bottom of the water pump and contacts the bottom of the inclined water tank.

[0011] Preferably, the pre-wetting module further includes a water level sensor installed inside the water tank and on the convex surface of the inclined water tank, and a flow sensor installed in the middle of the external pipe.

[0012] Preferably, a baffle is fixedly connected inside the inclined water tank.

[0013] Preferably, the guide shell includes a dust baffle, a water receiving tray, and a guide arc plate. The dust baffle is fixedly connected to the outer surface of the machine base and above the polishing wheel. The water receiving tray is fixedly connected to the outer surface of the machine base and below the polishing wheel. The guide arc plate is fixedly connected to the outer surface of the water trough and is concentrically arranged with the polishing wheel.

[0014] Preferably, both the guide arc plate and the baffle are provided with sharp parts on the side near the polishing wheel, and the bottom of the sharp parts is disc-shaped.

[0015] Preferably, the water mist separation plate assembly includes: a water mist back pressure plate and an arc-shaped water mist separation plate, wherein the water mist back pressure plate is installed inside the base and located above the water collection chamber, and the arc-shaped water mist separation plate is installed inside the base and located above the water mist back pressure plate.

[0016] Preferably, the water mist counter-pressure plate is composed of several counter-pressure plates, with the counter-pressure plates on both the left and right sides inclined towards the center.

[0017] Preferably, the arc-shaped water mist separation plate is inclined downward on both sides, and the arc-shaped water mist separation plate is composed of several arc-shaped separation plates. The arc-shaped opening of each arc-shaped separation plate faces upward. At the same time, in two adjacent layers, the arc-shaped separation plates of the lower layer are located on both sides below the arc-shaped separation plate of the upper layer.

[0018] Preferably, the two sides of the base are detachable, and guide rails are symmetrically installed in the inner wall of the base. The water mist counterpressure plate and the arc-shaped water mist separation plate are slidably connected to the guide rails.

[0019] By adopting the above solution, the water mist back pressure plate and the arc-shaped water mist separation plate can be cleaned regularly.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. By pre-wetting the water tank assembly before startup, the generation of dry dust is effectively suppressed. Compared with traditional dust removal devices, where dry metal dust in the chamber is rapidly raised to the explosive limit concentration upon starting the fan, which can easily lead to an explosion upon contact with a source of ignition, this device greatly reduces the flying of metal dust, thereby reducing the risk of explosion at the source, avoiding equipment damage, production facility damage and fire, effectively protecting the lives of on-site personnel and reducing economic losses.

[0022] 2. Traditional dust removal devices have extremely unstable airflow inside the chamber when the fan is started, causing dust to fly around. However, this device creates a humid environment in advance through a pre-humidification module, which makes the airflow relatively stable when the fan module starts to suck up dust. This reduces the dust from being stirred up due to sudden changes in airflow, lays a good foundation for subsequent efficient dust removal, and improves the stability and reliability of the overall dust removal process.

[0023] 3. Utilizing the differences in density and mass between metal dust and dust, this device achieves efficient separation of metal dust and dust through the synergistic effect of unique structures such as dust baffles, water collection trays, and guide arc plates. Unlike the simple dust collection method of traditional dust removal devices, this device can cause most of the metal dust to settle quickly and the dust to be effectively adsorbed, significantly improving the dust separation efficiency and facilitating more precise subsequent treatment of different types of dust.

[0024] 4. A three-stage mechanism of "guided collision - oblique throwing interception - wet capture" is adopted to achieve efficient settling of metal dust. From using guide arc plates to allow metal dust to slide and settle along the arc surface, to secondary interception of suspended dust by baffles and other structures, and then to the capture of dust by the pre-wetting adsorption layer on the inner wall of the water collection chamber and the water surface, the multi-stage progressive process greatly improves the dust settling effect and reduces dust emissions compared to the single settling method of traditional devices.

[0025] 5. The water pump is installed far from the polishing wheel, and the sloping water tank structure forms a barrier layer. Combined with the delayed shutdown program control, it effectively reduces the scouring and wear of impurities on the water pump. Unlike traditional devices where water pumps are quickly damaged by impurities in the water, resulting in rapid damage to key components such as impellers, pump shafts, and seals, leading to frequent repairs and replacements and affecting production efficiency, this device can significantly improve the durability and service life of the water pump, reduce enterprise maintenance costs, and ensure the smooth progress of production plans.

[0026] 6. The water in the collection chamber flows back to the water trough through pipes, and then flows into the inclined water tank through holes, forming a water resource cycle. This is different from the water waste that may occur in traditional dust removal devices. This device effectively saves water resources, conforms to the concept of environmental protection and sustainable development, reduces the water cost of enterprises, and reduces the pressure of sewage discharge and treatment. Attached Figure Description

[0027] Figure 1 This is a frontal perspective three-dimensional schematic diagram of the main structure of the present invention;

[0028] Figure 2 This is a rear-view perspective view of the main structure of the present invention;

[0029] Figure 3 This is a three-dimensional cross-sectional view of the main structure of the present invention;

[0030] Figure 4 This is a three-dimensional sectional view of the main structure of the present invention from another angle;

[0031] Figure 5 For the present invention Figure 4 Enlarged 3D schematic diagram of the structure at point A in the middle;

[0032] Figure 6 This is a partial cross-sectional perspective view of the main structure of the present invention;

[0033] Figure 7 This is a three-dimensional schematic diagram of the water tank assembly, pre-wetting module, and inclined water tank of the present invention;

[0034] Figure 8 This is a three-dimensional schematic diagram of the water mist separation plate assembly of the present invention;

[0035] Figure 9 This is a schematic diagram of the dust removal motion path of the present invention;

[0036] Figure 10 This is a schematic diagram of the settling plane of water and metal dust in this invention.

[0037] In the picture:

[0038] 11. Base; 12. Polishing wheel; 13. Fan module.

[0039] 21. Inclined water tank; 22. Water tank assembly; 221. Water flow channel; 222. Water collection chamber; 23. Pre-humidification module; 231. Water pump; 232. Water level sensor; 233. Flow sensor; 24. Baffle; 25. Guide shell; 251. Dust shield; 252. Water receiving tray; 253. Guide arc plate; 26. Water mist separation plate assembly; 261. Water mist back pressure plate; 262. Arc-shaped water mist separation plate. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0041] It should be noted that the polishing wheel 12 is only for polishing the workpiece, the fan module 13 is only for negative pressure to suck up dust, and the pre-humidification module 23 is only for pre-humidifying the water tank group 22. The working principle and specific structure of the above structures are existing technologies. Therefore, given the universality of the above structures, their specific principles will not be described in detail below.

[0042] Please see Figures 1 to 10 The present invention provides an embodiment of a pre-filled self-excited dust removal device, including a base 11, polishing wheels 12 symmetrically mounted on the outer surface of the base 11, a fan module 13 mounted on the top of the base 11, a sloping water tank 21 mounted on the bottom of the base 11, a water trough assembly 22 mounted above the sloping water tank 21, a pre-humidification module 23 mounted inside the sloping water tank 21, the pre-humidification module 23 being interconnected with the sloping water tank 21 and the water trough assembly 22, guide shells 25 mounted on both the upper and lower sides of the polishing wheels 12, and a water mist separation plate assembly 26 mounted above the water trough assembly 22.

[0043] The pre-wetting module 23 is activated in advance. Through its connection with the inclined water tank 21 and the water tank group 22, water in the inclined water tank 21 is transported to the water tank group 22 to pre-wet the water tank group 22. Then, the fan module 13 is activated to start the dust collection operation and the pre-wetting module 23 is stopped after a delay. This operation aims to effectively suppress the generation of dry dust and reduce dust during the dust collection process by pre-wetting the water tank group 22.

[0044] It should be noted that the water tank assembly 22 includes a water flow tank 221 and a water collection chamber 222. The water flow tank 221 is fixedly installed inside the machine base 11 on the side near the polishing wheel 12, and has holes on both sides that communicate with the inclined water tank 21. The water collection chamber 222 is fixedly installed inside the machine base 11 and is located above the pre-wetting module 23. The pre-wetting module 23 includes a water pump 231, which is installed in the middle of the inclined water tank 21 and located on the side away from the polishing wheel 12. It is connected to the water collection chamber 222 through an external pipe 1. An external pipe 222 is fixedly connected to the bottom of the water collection chamber 222, and its other side is connected to the water flow tank 221. The external pipe 222 has a certain height to prevent the water collection chamber 222 from being blocked. 22. Internal impurities flow into water pump 231. Water pump 231 has an external nozzle installed at its bottom that contacts the bottom of the inclined water tank 21. The pre-wetting module 23 also includes a water level sensor 232 installed inside the water trough 221 and on the convex surface of the inclined water tank 21, and a flow sensor 233 installed in the middle of the external pipe. A baffle 24 is fixedly connected inside the inclined water tank 21. The guide shell 25 includes a dust baffle 251, a water receiving tray 252, and a guide arc plate 253. The dust baffle 251 is fixedly connected to the outer surface of the base 11 and above the polishing wheel 12. The water receiving tray 252 is fixedly connected to the outer surface of the base 11 and below the polishing wheel 12. The guide arc plate 253 is fixedly connected to the water trough 221. The outer surface of the water tank 221 is concentrically arranged with the polishing wheel 12. The guide arc plate 253 and the baffle 24 both have sharp points on the side near the polishing wheel 12, and the bottom of the sharp points is disc-shaped. The water mist separation plate assembly 26 includes: a water mist back pressure plate 261 and an arc-shaped water mist separation plate 262. The water mist back pressure plate 261 is installed inside the base 11 and located above the water collection chamber 222. The arc-shaped water mist separation plate 262 is installed inside the base 11 and located above the water mist back pressure plate 261. The water mist back pressure plate 261 is composed of several back pressure plates, with the back pressure plates on both sides inclined towards the center. The arc-shaped water mist separation plate 262 is inclined downwards on both sides. The arc-shaped water mist separation plate 262 is composed of several... The machine base 11 consists of several arc-shaped separation plates, with the arc-shaped opening of each plate facing upwards. In adjacent layers, the lower arc-shaped separation plates are located on both sides below the upper arc-shaped separation plates. The sides of the base 11 are detachable, and guide rails are symmetrically installed on the inner wall of the base 11. The water mist back pressure plate 261 and the arc-shaped water mist separation plate 262 are slidably connected to the guide rails. By adopting the above scheme, the water mist back pressure plate 261 and the arc-shaped water mist separation plate 262 can be cleaned regularly. An explosion-proof control center is installed on the front of the base 11. The detachable design of the base 11 makes it easy to replace when other structures such as external pipe 1 and external pipe 2 become blocked.

[0045] Specifically, before starting the device, water is first injected into the inclined water tank 21, and then the water pump 231 is turned on. The water pump 231 draws water from the inclined water tank 21 through the external nozzle at the bottom and transports the water in the inclined water tank 21 to the water collection chamber 222 through the external pipe one. The water in the water collection chamber 222 is then transported to the water flow tank 221 through the external pipe two to fully pre-wet the water tank group 22. At this time, the water level sensor 232 monitors the water level in the water flow tank 221 and the inclined water tank 21 in real time, and the flow sensor 233 monitors the water flow rate of the external pipe two to ensure that the water flow is stable and the water volume is appropriate, so as to maintain the wet state of the water tank group 22.

[0046] After the water tank group 22 is pre-wetted, the equipment is started and the polishing wheel 12 starts to rotate at high speed to grind the workpiece. During the grinding process, the polishing wheel 12 and the workpiece rub against each other and generate a lot of dust. At this time, the fan module 13 starts synchronously, generating a strong suction force and sucking in the metal dust. The start of the fan module 13 will cause the pre-wetting module 23 to shut down after a delay.

[0047] The initial separation of metal dust includes:

[0048] When the fan module 13 is started, the negative pressure airflow it generates quickly covers the working area of ​​the polishing wheel 12. At this time, the metal dust that the polishing wheel 12 rubs and peels off from the workpiece surface at high speed, as well as the non-metallic dust that adheres to the workpiece surface or polishing consumables, such as sandpaper and abrasives, begin to move under the combined action of airflow and inertial force.

[0049] Metal dust has a higher density and greater mass, resulting in stronger inertia; while dust, which is mostly non-metallic oxides, polishing material debris, etc., has a lower density and smaller particle size, making it more susceptible to airflow.

[0050] The dust baffle 251 located above the polishing wheel 12 and the water receiving tray 252 located below it first intercept the dust. The dust baffle 251 forms an airflow barrier through its curved surface, forcing the rising dust to change direction. Most of the dust falls back due to the decay of kinetic energy after colliding with the baffle wall. The water receiving tray 252 receives larger particles that fall due to gravity, preventing the dust from directly polluting the ground. Under the synergistic effect of the two-stage structure, the dust-laden airflow is guided to the side closer to the pre-wetting module 23.

[0051] When the dust-laden airflow passes over the guide arc plate 253, its concentric arc design with the polishing wheel 12 induces a centrifugal effect. Larger metal dust particles, due to inertia exceeding the airflow drag, cannot follow the airflow along the tangential direction of the arc surface. Instead, they impact the plate surface along the normal direction. Subsequently, under the combined action of gravity and the arc surface of the plate, the metal dust slides down the arc plate into the inclined water tank 21, achieving initial settling.

[0052] In contrast, lighter dust exhibits a more significant tendency to follow the airflow. When the airflow is turned by the guide arc plate 253, the dust is more likely to follow the airflow trajectory and continue to rise, entering the water tank 221 area. Due to the van der Waals force and surface adsorption effect generated by the pre-wetted sticky wall of the water tank 221, the dust is adsorbed onto the tank wall, further reducing the risk of secondary dust re-entrainment. This stage achieves efficient separation of metal dust and dust through mass difference and structural guidance.

[0053] It should be noted that both the guide arc plate 253 and the baffle 24 have sharp points on the side near the polishing wheel 12, and the bottom of the sharp points is disc-shaped. This structure is significantly different from traditional smooth guide plates: traditional guide structures mostly adopt arc or straight plate designs, which easily form laminar flow when the airflow slides along the plate surface, causing some dust to escape with the airflow; while the sharp points of this device can tear the airflow into turbulence through high-frequency disturbance when the dust-laden airflow passes by, effectively reducing wind resistance, causing dust particles to deviate from their original trajectory, and forcing metal dust and grime to more easily mix with the surrounding environment. The edge structure features collision separation, while the bottom disc structure further enhances the separation effect. When metal dust impacts the disc surface, the normal collision force and tangential friction force provided by the disc cause the dust to decelerate rapidly and change direction. Compared with traditional smooth curved surfaces, the disc structure improves the dust collision efficiency. Unsettled fine particles also come into contact with the surrounding wet surface again due to the secondary eddy current generated by the disc's turbulence, thus achieving multi-stage separation. This composite structure not only reduces airflow energy consumption but also significantly improves the thoroughness of metal dust and dust separation through mechanical disturbance and collision mechanisms.

[0054] The initial settling of metal dust includes:

[0055] Under the negative pressure traction of the fan module 13, most of the metal dust falls directly into the inclined water tank 21 through the gap between the water receiving tray 252 and the guide arc plate 253. After entering the water, it quickly settles to the bottom of the inclined water tank 21 due to the density difference.

[0056] However, some dust particles carried by the high-speed airflow still slide along the arc surface of the guide plate 253 into the water trough 221 due to inertia. Their trajectory is changed by the water film pre-wetting the arc plate. When the dust comes into contact with the wet wall, it is adsorbed and fixed under the action of van der Waals force and surface tension, effectively suppressing secondary dust.

[0057] The suspended dust remaining above the inclined water tank 21 faces a double interception: First, the sharp part of the guide arc plate 253 cuts the airflow at high frequency, forming a turbulent vortex field, forcing the dust to break away from its original trajectory and collide obliquely with the water surface of the tank. Due to the high elastic modulus of the metal dust, it generates an upward rebound force when it hits the water surface, thus being thrown out at an upward angle. At this time, the sharp part of the baffle 24 and the disc structure form a second line of defense: the sharp part disturbs the rising airflow of the rebounding dust, and the disc converts the kinetic energy of the obliquely thrown dust into sliding friction energy along the disc surface by increasing the collision contact area and friction coefficient. Finally, under the combined force of the disc normal force and gravity, the dust is forced to rise vertically and enter the water collection chamber 222.

[0058] The pre-wetting adsorption layer on the inner wall of the water collection chamber 222 and the water surface plays a key role: when dust comes into contact with the wetted wall, the water film quickly captures it through capillary action and hydrogen bonding; if it touches the water surface, the concave liquid surface formed by surface tension generates a downward drag force, which promotes the dust to settle faster. This process achieves efficient settling through a three-stage mechanism of "guided collision - oblique throwing interception - wet capture". At this time, the captured metal dust will remain inside the water collection chamber 222, while the uncaptured metal dust and water will continue to be pulled upward by the fan module 13.

[0059] It should be noted that the water pump 231 is installed in the middle of the inclined water tank 21 and away from the polishing wheel 12, which prolongs the movement path of metal dust from the polishing area to the water pump 231. During this process, most of the metal dust has settled, effectively reducing the scouring and wear of impurities on the water pump 231. Secondly, the concave structure of the inclined water tank 21, combined with the middle installation layout of the water pump 231, naturally forms a barrier layer on both sides. The higher walls on both sides of the inclined water tank 21 and the bottom slope can intercept larger particles of impurities, preventing them from flowing directly to the water pump 231's suction port. In addition, the water pump 231 has been programmed to shut down after a delay. Under the action of lack of power, the probability of impurities entering the water pump 231 is further reduced, thereby improving the durability and service life of the water pump 231.

[0060] Among them, the separation of metal dust:

[0061] At this time, under the suction pull of the fan module 13, the dust-laden water mist mixture accelerates upward in the vertical direction until it encounters the water mist back pressure plate 261. The water mist back pressure plate 261 is composed of several back pressure plates that are inclined towards the center. Its unique V-shaped array structure forms a multi-level "back pressure barrier": when the airflow hits the inclined plate surface, it is subjected to the normal force of the plate surface, and the dust-laden airflow is forced to split along the inclined surface and decelerate. At the same time, a horizontal component force is generated in the horizontal direction, which forces the airflow to rise in an "S" shape.

[0062] During this process, the metal dust, due to its large inertia, is difficult to change direction with the airflow. Under the combined action of the collision force and gravity of the plate surface, it breaks away from the airflow and settles onto the surface of the water mist counterpressure plate 261. The entrained water mist forms a water film under the action of plate surface friction and airflow shear force, adsorbs the residual dust particles, and slides down the inclined surface to the water collection cavity 222.

[0063] After initial separation by the water mist back pressure plate 261, the airflow, carrying a small amount of fine dust and water mist, continues to rise to the arc-shaped water mist separation plate 262.

[0064] Since the arc-shaped water mist separation plate 262 is composed of multiple layers of staggered arc-shaped plates with upward openings, when the dust-laden airflow enters the arc-shaped channel, the centrifugal force and the spiral motion characteristics of the airflow are fully utilized: during the process of the airflow rotating and rising along the inner wall of the arc, the water mist, due to its density being greater than that of the gas, is thrown towards the arc-shaped plate wall by centrifugal force, forming a continuous water film; the metal dust particles, under the action of inertia and centrifugal force, collide with the water film and are captured, and the separated sludge, such as the mixture of dust and water, slides along both sides of the plate surface and converges to the edge of the water collection chamber 222 under the action of the gravitational component of the inclined surface of the arc-shaped plate, making it convenient to be centrally cleaned through the detachable side plate of the base 11, while the airflow continues to move through the arc-shaped water mist separation plate 262 and is discharged into the base 11 by the fan module 13.

[0065] The remaining water droplets that are not intercepted by the curved plate drip down along the curved edge to the surface of the lower water mist counter-pressure plate 261. Under the action of the plate's tilt angle and surface tension, the water droplets accelerate and converge along the V-shaped channel, and finally fall back into the water collection cavity 222 through the bottom notch of the water mist counter-pressure plate 261.

[0066] Part of the water in the water collection chamber 222 flows back to the water trough 221 through the bottom external pipe. The water flowing back to the water trough 221 then flows back into the inclined water tank 21 through the holes on both sides, thus realizing the conservation and utilization of water resources.

[0067] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0068] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A pre-filled self-excited dust removal device, comprising a base (11), wherein polishing wheels (12) are symmetrically mounted on the outer surface of the base (11), and a fan module (13) is mounted on the top of the base (11), characterized in that: A sloping water tank (21) is installed at the bottom of the base (11), and a water tank assembly (22) is installed above the sloping water tank (21). A pre-humidification module (23) is installed inside the sloping water tank (21). The pre-humidification module (23) is connected to the sloping water tank (21) and the water tank assembly (22). Guide shells (25) are installed on both the upper and lower sides of the polishing wheel (12). A water mist separation plate assembly (26) is installed above the water tank assembly (22). The pre-wetting module (23) is activated in advance. Through its connection with the slope water tank (21) and the water tank group (22), the water in the slope water tank (21) is transported to the water tank group (22) to pre-wet the water tank group (22). Then the fan module (13) is activated to start the dust collection operation and the pre-wetting module (23) is stopped after a delay. This operation aims to effectively suppress the generation of dry dust and reduce dust during the dust collection process by pre-wetting the water tank group (22). The water tank assembly (22) includes a water flow tank (221) and a water collection chamber (222). The water flow tank (221) is fixedly installed in the base (11) on one side near the polishing wheel (12), and holes communicating with the inclined water tank (21) are opened on both sides of it. The water collection chamber (222) is fixedly installed in the base (11) and located above the pre-wetting module (23). The pre-wetting module (23) includes a water pump (231), which is installed in the middle of the inclined water tank (21) and located on the side away from the polishing wheel (12), and is connected to the water collection chamber (222) through an external pipe. The bottom of the water collection chamber (222) is fixedly connected to an external pipe, and its other side is connected to the water flow channel (221). An external nozzle is installed at the bottom of the water pump (231) and contacts the bottom of the inclined water tank (21). The pre-wetting module (23) also includes a water level sensor (232) installed inside the water tank (221) and on the convex surface of the inclined water tank (21), and a flow sensor (233) installed in the middle of the external pipe.

2. The pre-filled self-excited dust removal device according to claim 1, characterized in that: The slope water tank (21) is fixedly connected to a baffle (24).

3. The pre-filled self-excited dust removal device according to claim 1, characterized in that: The guide shell (25) includes a dust cover (251), a water receiving tray (252), and a guide arc plate (253). The dust cover (251) is fixedly connected to the outer surface of the base (11) and above the polishing wheel (12). The water receiving tray (252) is fixedly connected to the outer surface of the base (11) and below the polishing wheel (12). The guide arc plate (253) is fixedly connected to the outer surface of the water trough (221) and is concentrically arranged with the polishing wheel (12).

4. The pre-filled self-excited dust removal device according to claim 3, characterized in that: Both the guide arc plate (253) and the baffle (24) have sharp parts on the side near the polishing wheel (12), and the bottom of the sharp parts is disc-shaped.

5. The pre-filled self-excited dust removal device according to claim 1, characterized in that: The water mist separation plate assembly (26) includes a water mist back pressure plate (261) and an arc-shaped water mist separation plate (262). The water mist back pressure plate (261) is installed in the base (11) and located above the water collection chamber (222). The arc-shaped water mist separation plate (262) is installed in the base (11) and located above the water mist back pressure plate (261).

6. The pre-filled self-excited dust removal device according to claim 5, characterized in that: The water mist counter-pressure plate (261) is composed of several counter-pressure plates, and the counter-pressure plates on the left and right sides are inclined towards the center.

7. A pre-filled self-excited dust removal device according to claim 5, characterized in that: The arc-shaped water mist separation plate (262) is inclined downward on both sides. The arc-shaped water mist separation plate (262) is composed of several arc-shaped separation plates. The arc-shaped opening of each arc-shaped separation plate faces upward. At the same time, in two adjacent layers, the arc-shaped separation plates of the lower layer are located on both sides below the arc-shaped separation plate of the upper layer.

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