Wet type passive dust removal device

Abstract

The utility model discloses a wet type passive dust removal device which comprises a shell, an anti-explosion electric control box, a main water tank, an auxiliary water tank, a fan, a dust air inlet channel, two water mist dust removal sputtering airflow channels and a water mist separation plate, the interior of the shell is divided into a front cavity and a rear cavity which are independent through a vertical partition plate, and the anti-explosion electric control box and the auxiliary water tank are arranged in the front cavity; the main water tank is arranged on the side of the shell and communicated with the bottom of the rear cavity, the water mist separation plate is horizontally arranged in the rear cavity and divides the upper portion of the rear cavity into a fan chamber, and the lower portion of the rear cavity is divided into a water mist dust removal sputtering chamber. The bottom of the dust inlet channel extends into the water mist dust removal sputtering chamber, the bottom end of the dust inlet channel faces the water surface of the bottom of the rear cavity, and the two water mist dust removal sputtering airflow channels are arranged in the water mist dust removal sputtering chamber and located on the two sides of the dust inlet channel correspondingly. The dust removal device can efficiently purify grinding dust and is high in safety performance.

Description

Technical Field

[0001] This utility model relates to the field of dust removal equipment technology, specifically a wet passive dust removal device. Background Technology

[0002] Grinding is an essential step in modern surface treatment processes for both metallic and non-metallic components, such as welded parts, castings, metal cut parts, bakelite parts, and plastic parts.

[0003] Currently, there are several types of dust removal equipment used in grinding:

[0004] Firstly, dry grinding dust removal equipment uses a simple filtration system with a fan and filter element. This type of equipment is only suitable for non-metallic grinding dust removal and cannot be used for metallic grinding dust removal. This is because during the grinding dust removal process, the metal particles are of uneven size, and the large particles will carry a large amount of heat, causing the filter element to burn. At the same time, plastic grinding powder will also carry static electricity. When the static electricity in the plastic powder accumulates to a certain level, it will spontaneously combust. Therefore, regardless of whether it is metal or non-metal, this type of dry grinding dust removal equipment has extremely low fire safety.

[0005] Secondly, there is wet grinding dust removal equipment. This type of dust removal equipment adopts a waterfall-style water curtain structure and is mostly used in paint booths. It can also be used for grinding dust removal. However, the dust removal effect of this type of wet dust removal equipment is not ideal, but it effectively avoids the possibility of fire. The biggest drawback is that the dust removal efficiency is very low. The gas after dust removal still contains about 70% fine grinding particles, which not only pollutes the environment but also causes certain harm to the human body.

[0006] Thirdly, there is the wet and dry integrated grinding and dust removal equipment. This type of equipment combines the functions of the two types mentioned above and is far superior to the two types in terms of dust removal effect. However, it also has certain drawbacks: the dust removal efficiency of the water mist dust removal sputtering chamber is still low. During the grinding and dust removal process, about 30% of fine particles are still discharged, which still causes some pollution to the environment and the harm to the human body should not be underestimated. It is not suitable for grinding and dust removal of metals such as aluminum that are active when exposed to water, otherwise there will be a risk of explosion and combustion. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a wet passive dust removal device that can efficiently purify grinding dust and has high safety performance.

[0008] The technical solution of this utility model is as follows:

[0009] A wet passive dust removal device includes an outer shell, an explosion-proof electrical control box, a main water tank, an auxiliary water tank, a fan, a dust inlet channel, two water mist dust removal splash airflow channels and a water mist separation plate. The outer shell is divided into two independent chambers, front and rear, by a vertical partition. The explosion-proof electrical control box and the auxiliary water tank are installed in the front chamber.

[0010] The water mist separation plate is horizontally set in the rear chamber, dividing the upper part of the rear chamber into a fan chamber and the lower part into a water mist dust removal splash chamber. The fan is set in the fan chamber, with the air inlet at the bottom of the fan facing the water mist separation plate. An air outlet is provided on the outer shell at the top of the rear chamber, and the air outlet at the top of the fan faces the air outlet.

[0011] The main water tank is located on the side of the outer shell, and its bottom has an opening that connects to the bottom of the water mist dust removal splash chamber. Water from the main water tank flows into the bottom of the water mist dust removal splash chamber through this opening. A dust inlet channel is also located on the side of the outer shell, extending its bottom into the water mist dust removal splash chamber in the rear chamber. The outlet at the bottom of the dust inlet channel faces downwards towards the water surface at the bottom of the water mist dust removal splash chamber. An inverted U-shaped water baffle is sealed between the left and right side plates of the outer shell within the water mist dust removal splash chamber. The bottom of the dust inlet channel is located between the two vertical sections of the inverted U-shaped water baffle, and the horizontal section of the inverted U-shaped water baffle is separated from the water mist. There are gaps between the plates. The two vertical parts of the inverted U-shaped baffle plate are respectively separated from the front plate and the back plate of the outer shell. The bottom of the two vertical parts of the inverted U-shaped baffle plate is higher than the water surface at the bottom of the water mist dust removal splash chamber. A water mist dust removal splash airflow channel is provided on each of the two vertical parts of the inverted U-shaped baffle plate. The bottom of the water mist dust removal splash airflow channel is the water mist inlet, and the top of the water mist dust removal splash airflow channel is the water mist outlet. The water mist inlets of the two water mist dust removal splash airflow channels face directly below the bottom of the dust inlet channel. The water mist outlets of the two water mist dust removal splash airflow channels face the inner walls of the front plate and the back plate of the outer shell, respectively.

[0012] The auxiliary water tank is equipped with a water inlet that is connected to an external tap water pipe. A float valve is installed at the water inlet, and the float of the float valve floats on the water surface inside the auxiliary water tank. A through hole is provided at the bottom of the auxiliary water tank that communicates with the bottom of the water mist dust removal splash chamber. The top of the auxiliary water tank is connected to the water mist dust removal splash chamber through a vent pipe.

[0013] A dust inlet chamber is provided on the side of the outer shell. The main water tank and the dust inlet chamber are respectively located on the left and right sides of the outer shell. The dust inlet channel is vertically arranged in the dust inlet chamber. An air inlet pipe connected to the top of the dust inlet channel is provided at the top of the dust inlet chamber. An inverted L-shaped bend pipe is connected to the bottom of the dust inlet channel. The inverted L-shaped bend pipe passes through the right side plate of the outer shell and extends to the water mist dust removal splash chamber in the rear chamber. The bottom of the vertical part of the inverted L-shaped bend pipe, i.e. the air outlet, faces downward toward the water surface at the bottom of the water mist dust removal splash chamber.

[0014] The auxiliary water tank is located at the lower part of the front chamber, and the explosion-proof electrical control box is located at the upper part of the front chamber. The explosion-proof electrical control box contains a fan controller, which is electrically connected to the fan through a metal explosion-proof conduit. An electrical control switch and an electrical control indicator light are installed on the front surface of the explosion-proof electrical control box.

[0015] The main water tank has an open top and a tank cover.

[0016] The water mist separation plate is a plate-shaped structure composed of multiple vertically arranged S-shaped bending plates. The orientation of two adjacent S-shaped bending plates is opposite, that is, the two adjacent S-shaped bending plates are symmetrical along the central axis between them, and there is an air gap between the bending joints of two adjacent S-shaped bending plates.

[0017] A fan partition is provided inside the fan room and directly above the water mist separation plate. The fan is installed on the fan partition, and the fan partition has a ventilation opening that communicates with the air inlet at the bottom of the fan.

[0018] The water mist dust removal and splashing airflow channels on the two vertical sections of the inverted U-shaped water baffle are each composed of two fixed plates, an L-shaped guide plate, a C-shaped guide plate, a vertical guide plate, and a horizontal guide plate. The two fixed plates are parallel and fixedly connected to the left and right side plates of the outer shell, respectively. The two ends of the L-shaped guide plate, C-shaped guide plate, vertical guide plate, and horizontal guide plate are respectively close to and fixedly connected to the two fixed plates. The L-shaped guide plate is fixedly connected between the lower parts of the two fixed plates, and the C-shaped guide plate is fixedly connected between the upper parts of the two fixed plates and located directly above the L-shaped guide plate. The L-shaped groove of the L-shaped guide plate faces the bottom of the dust inlet channel, and the C-shaped groove of the C-shaped guide plate faces the bottom of the dust inlet channel. Facing the inner wall of the front or back panel of the outer shell, the top of the vertical guide plate is fixedly connected to the bottom of the C-shaped guide plate and extends into the L-shaped slot of the L-shaped guide plate. A gap is left between the bottom of the vertical guide plate and the horizontal part of the L-shaped guide plate. The outer end of the horizontal guide plate is fixedly connected to the inner wall of the front or back panel of the outer shell. The inner end of the horizontal guide plate extends horizontally into the C-shaped slot of the C-shaped guide plate and a gap is left between it and the inner wall of the C-shaped guide plate. This allows the water mist mixed with dust to enter the channel formed between the L-shaped guide plate and the vertical guide plate sequentially, and then enter the channel between the C-shaped guide plate and the front or back panel of the outer shell. After being deflected by the horizontal guide plate, it is guided upward to the water mist separation plate.

[0019] The outer shell at the top of the rear chamber is provided with multiple air outlets, which are arranged in a matrix and evenly distributed.

[0020] Advantages of this utility model:

[0021] (1) This utility model adopts a wet dust removal structure. By setting two symmetrical water mist dust removal splash airflow channels, the dust removal efficiency is greatly improved.

[0022] (2) The electrical control box of this utility model is an explosion-proof electrical control box. The fan controller inside the explosion-proof electrical control box is electrically connected to the fan through a metal explosion-proof conduit. It is not only suitable for grinding and dust removal of ordinary carbon steel metals, but also suitable for grinding and dust removal of water-reactive metals such as aluminum. It will not cause risks of explosion or combustion due to the generation of flammable gas.

[0023] (3) This utility model is equipped with a secondary water tank. The bottom of the secondary water tank, the main water tank and the water mist dust removal splash chamber are interconnected. The secondary water tank can open the water inlet through the float valve to replenish water to the main water tank and the water mist dust removal splash chamber. However, the water surface at the bottom of the water mist dust removal splash chamber will fluctuate during water mist dust removal splashing. The fluctuation will cause the float to float and sink, causing the float to accidentally open the water inlet on the secondary water tank. Therefore, this utility model sets up a vent pipe so that the top of the secondary water tank is connected to the water mist dust removal splash chamber through the vent pipe, that is, the air inside the secondary water tank is connected to the outside atmosphere. The vent pipe realizes ventilation, effectively reducing the fluctuation of the water surface in the secondary water tank, making the float valve detection and water replenishment more accurate, and keeping the dust removal efficiency at its highest.

[0024] (4) The water mist separation plate of this utility model has many S-shaped airflow channels built in, and the channels are dense and numerous. When water mist containing dust passes through, the dust and water can be mixed multiple times to form large water droplets for secondary sedimentation, further improving the dust removal efficiency and making it safer to use. Attached Figure Description

[0025] Figure 1 This is a perspective view of the present invention.

[0026] Figure 2 This is the right view of this utility model.

[0027] Figure 3 yes Figure 2 AA section view in the image.

[0028] Figure 4 This is a partial structural diagram of the water mist separation plate.

[0029] Figure 5 This is a rear view of the present invention.

[0030] Figure 6 yes Figure 4 BB section view in the middle.

[0031] Attached reference numerals: 1-Outer shell, 2-Explosion-proof electrical control box, 3-Main water tank, 4-Auxiliary water tank, 5-Fan, 6-Dust inlet channel, 7-Water mist separation plate, 71-S-shaped bend plate, 8-Fan partition, 9-Air outlet, 10-Dust inlet chamber, 11-Water tank cover, 12-Opening, 13-Inlet pipe, 14-Inverted L-shaped bend pipe, 15-Horizontal part of inverted U-shaped water baffle, 16-Fixing plate, 17-L-shaped guide plate, 18-C-shaped guide plate, 19-Vertical guide plate, 20-Horizontal guide plate, 21-Float ball, 22-Ventilation pipe. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] See Figures 1-6 A wet passive dust removal device includes an outer shell 1, an explosion-proof electrical control box 2, a main water tank 3, an auxiliary water tank 4, a fan 5, a dust inlet channel 6, a water mist dust removal sputtering airflow channel, and a water mist separation plate 7. The outer shell 1 is divided into two independent chambers, front and rear, by a vertical partition. The explosion-proof electrical control box 2 is installed in the upper part of the front chamber, and the auxiliary water tank 4 is installed in the lower part. The explosion-proof electrical control box 2 is equipped with a fan controller, which is electrically connected to the fan 5 through a metal explosion-proof conduit. The front end face of the explosion-proof electrical control box 2 is equipped with an electrical control switch and an electrical control indicator light for the fan 5.

[0034] The water mist separation plate 7 is a plate-like structure composed of multiple vertically arranged S-shaped bending plates 71. The orientation of two adjacent S-shaped bending plates 71 is opposite, that is, the two adjacent S-shaped bending plates 71 are symmetrical along the central axis between them, and there is a ventilation gap between the bending joints of two adjacent S-shaped bending plates 71. The water mist separation plate 7 is horizontally arranged in the rear chamber and divides the upper part of the rear chamber into a fan chamber and the lower part into a water mist dust removal splash chamber. A fan partition 8 is arranged in the fan chamber and directly above the water mist separation plate 7. The fan 5 is installed on the fan partition 8, and the fan partition 8 is provided with a ventilation port that communicates with the air inlet at the bottom of the fan 5. Multiple air outlets 9 are provided on the outer shell 1 at the top of the rear chamber. The multiple air outlets 9 are arranged in a matrix and evenly distributed. The air outlet at the top of the fan 5 faces the multiple air outlets 9.

[0035] A dust inlet chamber 10 is provided on the side of the outer shell 1, and the main water tank 3 and the dust inlet chamber 10 are respectively provided on the left and right sides of the outer shell 1. The top of the main water tank 3 is an open structure, and a water tank cover 11 is provided on the top of the main water tank 3. An opening 12 is provided at the bottom of the main water tank 3, which communicates with the bottom of the water mist dust removal splash chamber. Water in the main water tank 3 flows into the bottom of the water mist dust removal splash chamber through the opening 12. The dust inlet channel 6 is vertically arranged in the dust inlet chamber 10. Two air inlet pipes 13 are provided at the top of the dust inlet chamber 10, which communicate with the top of the dust inlet channel 6. The bottom end of the dust inlet channel 6 is connected to an inverted L-shaped bend pipe 14. The inverted L-shaped bend pipe 14 passes through the right side plate of the outer shell 1 and extends into the water mist dust removal splash chamber of the rear chamber. The bottom end of the vertical part of the inverted L-shaped bend pipe 14, i.e. the air outlet, faces downward toward the water surface at the bottom of the water mist dust removal splash chamber.

[0036] An inverted U-shaped water baffle is sealed between the left and right side plates of the outer shell 1 within the water mist dust removal splash chamber. An inverted L-shaped bend 14 is located between the two vertical sections of the inverted U-shaped water baffle. A gap is left between the horizontal section 15 of the inverted U-shaped water baffle and the water mist separation plate 7. Gaps are left between the two vertical sections of the inverted U-shaped water baffle and the front and back plates of the outer shell 1, respectively. The horizontal height of the bottom of the two vertical sections of the inverted U-shaped water baffle is higher than the water surface at the bottom of the water mist dust removal splash chamber. A water mist dust removal splash airflow channel is provided on each of the two vertical sections of the inverted U-shaped water baffle. The water mist dust removal and splashing airflow channels on the two vertical sections of the inverted U-shaped baffle are each composed of two fixed plates 16, an L-shaped guide plate 17, a C-shaped guide plate 18, a vertical guide plate 19, and a horizontal guide plate 20. The two fixed plates 16 are parallel and fixedly connected to the left and right side plates of the outer casing 1, respectively. The two ends of the L-shaped guide plate 17, C-shaped guide plate 18, vertical guide plate 19, and horizontal guide plate 20 are respectively close to and fixedly connected to the two fixed plates 16. The L-shaped guide plate 17 is fixedly connected between the lower parts of the two fixed plates 16, and the C-shaped guide plate 18 is fixedly connected to the lower part of the two fixed plates 16. The upper parts of the two fixed plates 16 are located between each other and directly above the L-shaped guide plate 17. The L-shaped groove of the L-shaped guide plate 17 faces the inverted L-shaped bend 14. The C-shaped groove of the C-shaped guide plate 18 faces the inner wall of the front or back panel of the outer casing 1. The top of the vertical guide plate 19 is fixedly connected to the bottom of the C-shaped guide plate 18 and extends into the L-shaped groove of the L-shaped guide plate 17. A gap is left between the bottom of the vertical guide plate 19 and the horizontal part of the L-shaped guide plate 17. The outer end of the horizontal guide plate 20 is fixedly connected to the inner wall of the front or back panel of the outer casing 1. The inner end of the horizontal guide plate 20 is horizontal. The water mist extends into the C-shaped slot of the C-shaped guide plate 18 and leaves a gap between it and the inner wall of the C-shaped guide plate 18, so that the water mist inlets at the bottom of the two water mist dust removal splash airflow channels face directly below the inverted L-shaped bend tube 14, and the water mist outlets at the top of the two water mist dust removal splash airflow channels face the inner walls of the front and back plates of the outer shell 1, respectively. The water mist mixed with dust enters upward from the channel formed between the L-shaped guide plate 17 and the vertical guide plate 19 into the channel between the C-shaped guide plate 18 and the front or back plate of the outer shell 1, and after being deflected by the horizontal guide plate 20, it is guided upward to the water mist separation plate 7.

[0037] The auxiliary water tank 4 is equipped with a water inlet, which is connected to an external tap water pipe. A float valve is installed at the water inlet, and the float ball 21 of the float valve floats on the water surface inside the auxiliary water tank 4. A through hole is provided at the bottom of the auxiliary water tank 4, which communicates with the bottom of the water mist dust removal splash chamber. The top of the auxiliary water tank 4 is connected to the water mist dust removal splash chamber through a vent pipe 22, so that the top of the auxiliary water tank 4 is open to the atmosphere, thus preventing the formation of a vacuum at the top of the auxiliary water tank 4.

[0038] The working principle of this utility model:

[0039] The fan 5 is started by the electrical control switch on the explosion-proof electrical control box 2. The grinding dust, under the action of the fan 5, passes sequentially through the air inlet pipe 13, the dust inlet channel 6, and the inverted L-shaped bend pipe 14 before entering the water mist dust removal splash chamber. Since water is stored at the bottom of the water mist dust removal splash chamber, the dust-laden airflow is blown towards the water surface. Under the suction pressure of the fan 5, waves, water splashes, and water mist are generated on the water surface. At this time, the dust-containing gas will fully mix with the waves, water splashes, and water mist. The heavier water mist and dust mixture then falls into the water mist dust removal chamber. In the water at the bottom of the dust sputtering chamber, some of the lighter water mist and dust mixtures continue to flow upward along the two water mist dust removal sputtering airflow channels on both sides of the inverted L-shaped bend pipe 14 under the suction of the fan 5. After passing through the water mist separation plate 7, the water mist and dust are mixed again, forming large water droplets. The water droplets fall into the water at the bottom of the water mist dust removal sputtering chamber under the action of gravity. The gas filtered by the water mist separation plate 7 already meets the environmental protection requirements and is discharged through multiple air outlets 9 at the top of the rear chamber under the suction of the fan 5.

[0040] When the water level in the interconnected main water tank 3 and the water mist dust removal splash chamber drops to the lowest level, the float ball 21 in the auxiliary water tank 4 will descend because the bottoms of the auxiliary water tank 4, the main water tank 3 and the water mist dust removal splash chamber are interconnected. The float valve will automatically open the water inlet of the auxiliary water tank 4 to replenish water. When the water level reaches the set position, the float ball 21 will float up again and the float valve will automatically stop replenishing water.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wet passive dust collection device, characterized in that: It includes an outer shell, an explosion-proof electrical control box, a main water tank, an auxiliary water tank, a fan, a dust inlet channel, two water mist dust removal splash airflow channels and a water mist separation plate. The outer shell is divided into two independent chambers, front and rear, by a vertical partition. The explosion-proof electrical control box and the auxiliary water tank are installed in the front chamber. The water mist separation plate is horizontally set in the rear chamber, dividing the upper part of the rear chamber into a fan chamber and the lower part into a water mist dust removal splash chamber. The fan is set in the fan chamber, with the air inlet at the bottom of the fan facing the water mist separation plate. An air outlet is provided on the outer shell at the top of the rear chamber, and the air outlet at the top of the fan faces the air outlet. The main water tank is located on the side of the outer shell, and its bottom has an opening that connects to the bottom of the water mist dust removal splash chamber. Water from the main water tank flows into the bottom of the water mist dust removal splash chamber through this opening. A dust inlet channel is also located on the side of the outer shell, extending its bottom into the water mist dust removal splash chamber in the rear chamber. The outlet at the bottom of the dust inlet channel faces downwards towards the water surface at the bottom of the water mist dust removal splash chamber. An inverted U-shaped water baffle is sealed between the left and right side plates of the outer shell within the water mist dust removal splash chamber. The bottom of the dust inlet channel is located between the two vertical sections of the inverted U-shaped water baffle, and the horizontal section of the inverted U-shaped water baffle is separated from the water mist. There are gaps between the plates. The two vertical parts of the inverted U-shaped baffle plate are respectively separated from the front plate and the back plate of the outer shell. The bottom of the two vertical parts of the inverted U-shaped baffle plate is higher than the water surface at the bottom of the water mist dust removal splash chamber. A water mist dust removal splash airflow channel is provided on each of the two vertical parts of the inverted U-shaped baffle plate. The bottom of the water mist dust removal splash airflow channel is the water mist inlet, and the top of the water mist dust removal splash airflow channel is the water mist outlet. The water mist inlets of the two water mist dust removal splash airflow channels face directly below the bottom of the dust inlet channel. The water mist outlets of the two water mist dust removal splash airflow channels face the inner walls of the front plate and the back plate of the outer shell, respectively. The auxiliary water tank is equipped with a water inlet that is connected to an external tap water pipe. A float valve is installed at the water inlet, and the float of the float valve floats on the water surface inside the auxiliary water tank. A through hole is provided at the bottom of the auxiliary water tank that communicates with the bottom of the water mist dust removal splash chamber. The top of the auxiliary water tank is connected to the water mist dust removal splash chamber through a vent pipe.

2. The wet passive dust removal device according to claim 1, characterized in that: A dust inlet chamber is provided on the side of the outer shell. The main water tank and the dust inlet chamber are respectively located on the left and right sides of the outer shell. The dust inlet channel is vertically arranged in the dust inlet chamber. An air inlet pipe connected to the top of the dust inlet channel is provided at the top of the dust inlet chamber. An inverted L-shaped bend pipe is connected to the bottom of the dust inlet channel. The inverted L-shaped bend pipe passes through the right side plate of the outer shell and extends to the water mist dust removal splash chamber in the rear chamber. The bottom of the vertical part of the inverted L-shaped bend pipe, i.e. the air outlet, faces downward toward the water surface at the bottom of the water mist dust removal splash chamber.

3. The wet passive dust removal device according to claim 1, characterized in that: The auxiliary water tank is located at the lower part of the front chamber, and the explosion-proof electrical control box is located at the upper part of the front chamber. The explosion-proof electrical control box contains a fan controller, which is electrically connected to the fan through a metal explosion-proof conduit. An electrical control switch and an electrical control indicator light are installed on the front surface of the explosion-proof electrical control box.

4. The wet passive dust collection device according to claim 1, characterized in that: The main water tank has an open top and a tank cover.

5. A wet passive dust collection device according to claim 1, characterized in that: The water mist separation plate is a plate-shaped structure composed of multiple vertically arranged S-shaped bending plates. The orientation of two adjacent S-shaped bending plates is opposite, that is, the two adjacent S-shaped bending plates are symmetrical along the central axis between them, and there is an air gap between the bending joints of two adjacent S-shaped bending plates.

6. A wet passive dust collection device according to claim 1, characterized in that: A fan partition is provided inside the fan room and directly above the water mist separation plate. The fan is installed on the fan partition, and the fan partition has a ventilation opening that communicates with the air inlet at the bottom of the fan.

7. A wet passive dust collection device according to claim 1, characterized in that: The water mist dust removal and splashing airflow channels on the two vertical sections of the inverted U-shaped water baffle are each composed of two fixed plates, an L-shaped guide plate, a C-shaped guide plate, a vertical guide plate, and a horizontal guide plate. The two fixed plates are parallel and fixedly connected to the left and right side plates of the outer shell, respectively. The two ends of the L-shaped guide plate, C-shaped guide plate, vertical guide plate, and horizontal guide plate are respectively close to and fixedly connected to the two fixed plates. The L-shaped guide plate is fixedly connected between the lower parts of the two fixed plates, and the C-shaped guide plate is fixedly connected between the upper parts of the two fixed plates and located directly above the L-shaped guide plate. The L-shaped groove of the L-shaped guide plate faces the bottom of the dust inlet channel, and the C-shaped groove of the C-shaped guide plate faces the bottom of the dust inlet channel. Facing the inner wall of the front or back panel of the outer shell, the top of the vertical guide plate is fixedly connected to the bottom of the C-shaped guide plate and extends into the L-shaped slot of the L-shaped guide plate. A gap is left between the bottom of the vertical guide plate and the horizontal part of the L-shaped guide plate. The outer end of the horizontal guide plate is fixedly connected to the inner wall of the front or back panel of the outer shell. The inner end of the horizontal guide plate extends horizontally into the C-shaped slot of the C-shaped guide plate and a gap is left between it and the inner wall of the C-shaped guide plate. This allows the water mist mixed with dust to enter the channel formed between the L-shaped guide plate and the vertical guide plate sequentially, and then enter the channel between the C-shaped guide plate and the front or back panel of the outer shell. After being deflected by the horizontal guide plate, it is guided upward to the water mist separation plate.

8. A wet passive dust collection device according to claim 1, characterized in that: The outer shell at the top of the rear chamber is provided with multiple air outlets, which are arranged in a matrix and evenly distributed.

Images