Multi-layer wet-process gas filtering mechanism

Abstract

The utility model discloses a multi-layer wet-process gas filtering mechanism, and relates to the technical field of mining equipment assemblies. A first cavity, a second cavity, a third cavity and a fourth cavity which are communicated in sequence are formed in the air filtering box body, an air filtering inlet communicated with the first cavity is formed in the left side of the air filtering box body, an air filtering outlet communicated with the fourth cavity is formed in the right side of the air filtering box body, a spraying box is arranged at the upper section in the second cavity body, and an atomizing nozzle is arranged on the bottom surface of the spraying box; the input end of the water pump is communicated with the third cavity through a water pump liquid inlet pipe, the output end of the water pump is communicated with the spraying box through a water pump liquid outlet pipe, and a first water absorption type filtering cotton piece is arranged between the first cavity and the second cavity; the second cavity and the third cavity are communicated with each other through an arc-shaped transition channel formed by the first guide plate and the second guide plate, and a second water absorption type filter cotton piece is arranged between the third cavity and the fourth cavity. And the internal space of the gas filtering box body is fully utilized to realize full filtering.

Description

Technical Field

[0001] The utility model relates to the technical field of mining equipment components, and particularly relates to a multi-level wet gas filtering mechanism. Background Art

[0002] In the prior art, a wet gas filtering mechanism for a mining equipment, with the publication number of CN221096516U, includes a filtering box, an air inlet pipe installed in the middle of the left end of the filtering box, a spraying tray installed in the upper left corner inside the filtering box, a plurality of atomizing nozzles arranged in a rectangular array at the lower end of the spraying tray, a water pump installed at the upper end of the filtering box and communicated with the spraying tray, a liquid guide pipe installed between the water pump and the lower end of the filtering box, and a filter mesh cover installed at the lower end of the liquid guide pipe. A middle partition is integrally and fixedly connected to the middle of the filtering box.

[0003] However, in the prior art, although the wet gas filtering mechanism has a filtering and processing capacity, the space of the filtering box is not fully utilized. Summary of the Utility Model

[0004] Aiming at the above technical problems, the present application solves the problem that in the prior art, although the wet gas filtering mechanism has a filtering and processing capacity, the space of the filtering box is not fully utilized.

[0005] In order to achieve the above purpose, the technical solution adopted by the present application is as follows: a multi-level wet gas filtering mechanism, including a gas filtering box body. The inside of the gas filtering box body has a first cavity, a second cavity, a third cavity and a fourth cavity that are sequentially connected. The first cavity, the second cavity, the third cavity and the fourth cavity are arranged in a "field" shape. A gas filtering inlet communicated with the first cavity is arranged on the left side of the gas filtering box body. A gas filtering outlet communicated with the fourth cavity is arranged on the right side of the gas filtering box body. A water pump is arranged on the top of the gas filtering box body. A spraying box is arranged in the upper section inside the second cavity. Atomizing nozzles are arranged on the bottom surface of the spraying box.

[0006] The input end of the water pump is communicated with the third cavity through a water pump liquid inlet pipe, and the output end of the water pump is communicated with the spraying box through a water pump liquid outlet pipe.

[0007] A first water-absorbing filter cotton sheet is arranged between the first cavity and the second cavity. First filtering holes are opened on the first water-absorbing filter cotton sheet. An arc transition channel formed by a first guide plate and a second guide plate is arranged between the second cavity and the third cavity for communication. A second water-absorbing filter cotton sheet is arranged between the third cavity and the fourth cavity. Second filtering holes are opened on the second water-absorbing filter cotton sheet. A wind罩 is arranged on the inner wall surface of the gas filtering box body where the fourth cavity is communicated with the gas filtering outlet. A fan is arranged inside the wind罩.

[0008] To better realize this utility model, the first cavity is located below the second cavity, the third cavity is located below the fourth cavity, and the first cavity is located to the left of the third cavity, and the second cavity is located to the left of the fourth cavity.

[0009] To better realize this utility model, a first wall-type liquid accumulation tank with a top opening is further provided on the inner wall surface of the left side of the second cavity, and a second wall-type liquid accumulation tank with a top opening is provided on the inner wall surfaces of the front and rear sides of the second cavity, respectively. The interior of the first wall-type liquid accumulation tank and the interior of the second wall-type liquid accumulation tank are connected through a first connecting pipe, and the outer wall surface of the first connecting pipe is tangent to the inner bottom surface of the first wall-type liquid accumulation tank and the inner bottom surface of the second wall-type liquid accumulation tank.

[0010] To better realize this utility model, the input end of the water pump inlet pipe extends horizontally into the interior of the third cavity, and the outer wall surface of the water pump inlet pipe is tangent to the inner bottom surface of the third cavity, and a filter cover is provided at the input end of the water pump inlet pipe.

[0011] To better realize this utility model, furthermore, the right side of the first guide plate and the right side wall of the interior of the air filter box form a vertical transition channel connecting the third cavity and the fourth cavity.

[0012] The second absorbent filter cotton sheet is disposed inside the vertical transition channel. The first guide plate is located inside the vertical transition channel, and a wall-mounted liquid collection tank is disposed on the right side above the second absorbent filter cotton sheet.

[0013] The bottom right side of the wall-mounted liquid collection tank is provided with multiple horizontally arranged distributing pipes. Multiple distributing holes are formed on the lower side wall of each distributing pipe, arranged along its length. These distributing holes are vertically offset from the second filter holes.

[0014] The bottom surfaces of both the first and second wall-mounted liquid collection tanks are higher than the top surface of the wall-mounted liquid collection box, and the second wall-mounted liquid collection tank is connected to the wall-mounted liquid collection box through a second connecting pipe.

[0015] To better realize this utility model, furthermore, multiple vertical support rods are vertically arranged on the upper side wall of the dispensing pipe, and a liquid collecting plate inclined at 30° to 45° with the horizontal direction is provided at the top of the vertical support rod. The axial cross-section of the liquid collecting plate is "︶" shaped.

[0016] To better implement the present utility model, further, a sewage discharge pipe communicating with the first cavity is provided on the outer wall surface of the air filtering box body below the air filtering inlet, and a control valve is provided on the sewage discharge pipe.

[0017] The technical solution provided by the present utility model has the following beneficial effects compared with the prior art:

[0018] 1. In the present utility model, the air filtering box body internally has a first cavity, a second cavity, a third cavity, and a fourth cavity that are sequentially connected, and the first cavity, the second cavity, the third cavity, and the fourth cavity are arranged in a "field" shape. On the one hand, it effectively filters out solid particulate matters with various particle diameters in the air, thereby improving the air filtering effect of the wet air filtering mechanism; on the other hand, it makes full use of the internal space of the air filtering box body to achieve sufficient filtration, enabling the dust-containing air to undergo multi-level comprehensive filtration treatment.

[0019] 2. In the present utility model, with the design that the first cavity is below the second cavity, the third cavity is below the fourth cavity, and the first cavity is on the left side of the third cavity, and the second cavity is on the left side of the fourth cavity, the layout of the multi-level comprehensive filtration is more reasonable.

[0020] 3. In the present utility model, a first wall-mounted liquid accumulation tank with an open top is provided on the inner wall surface on the left side of the second cavity, and second wall-mounted liquid accumulation tanks with open tops are respectively provided on the inner wall surfaces on the front and rear sides of the second cavity. The interior of the first wall-mounted liquid accumulation tank is connected to the interior of the second wall-mounted liquid accumulation tank through a first connecting pipe, and the outer wall surface of the first connecting pipe is tangent to the inner bottom surface of the first wall-mounted liquid accumulation tank and the inner bottom surface of the second wall-mounted liquid accumulation tank. By making full use of the spray treatment in the atomizing nozzle, a part of the spray inside the second cavity is used to moisten the first water-absorbing filter cotton sheet, and another part of the spray inside the second cavity deposits on the inner wall surface and is collected by the first wall-mounted liquid accumulation tank and the second wall-mounted liquid accumulation tank, re-classifying and making full use of the spray inside the second cavity.

[0021] 4. In the present utility model, with the design that the input end of the water pump liquid inlet pipe horizontally extends into the interior of the third cavity, the outer wall surface of the water pump liquid inlet pipe is tangent to the inner bottom surface of the third cavity, and a filter cover is provided at the end of the input end of the water pump liquid inlet pipe, it filters out pollutants such as impurities in the liquid inside the third cavity for the input end of the water pump liquid inlet pipe.

[0022] 5. Through the cooperative design of the first wall-mounted liquid accumulation tank, the first connecting pipe, the second wall-mounted liquid accumulation tank, the second connecting pipe, the wall-mounted liquid collection box, the distribution pipe, the second water-absorbing filter cotton sheet, and the second filtering holes, the present utility model further improves the air filtering effect of the wet air filtering mechanism.

[0023] 6. This utility model features multiple vertical support rods vertically arranged on the upper side wall of the distributing pipe. Each vertical support rod has a liquid collecting plate inclined at 30° to 45° to the horizontal. The axial cross-section of the liquid collecting plate is shaped like a "︶". Air carrying liquid impacts the lower side wall of the collecting plate from bottom to top, causing the liquid-laden air to tumble into the upper concave surface of the collecting plate. The liquid collects and, under the influence of gravity, drips down along the inclined direction of the collecting plate onto the second absorbent filter cotton sheet, further wetting it. The air continues to rise until it is discharged through the air outlet.

[0024] 7. In this utility model, a drain pipe communicating with the first cavity is provided on the outer wall surface of the air filter box located below the air filter inlet. The drain pipe is designed with a control valve to facilitate the discharge of dirty liquid. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 In this utility model Figure 1 The right-side view;

[0028] Figure 3 In this utility model Figure 1 Rear view;

[0029] Figure 4 In this utility model Figure 1 Top view;

[0030] Figure 5 This is a schematic diagram of the air filter box in this utility model;

[0031] Figure 6 In this utility model Figure 5 Schematic diagram of the structure at point C;

[0032] Figure 7 In this utility model Figure 1 Left side view;

[0033] Figure 8 In this utility model Figure 7 Schematic diagram of the structure at the FF point;

[0034] Figure 9 In this utility model Figure 7 Schematic diagram of the structure at the middle GG;

[0035] Figure 10 In this utility model Figure 7 A schematic diagram of the structure at point HH.

[0036] In the diagram: 101-Filter box; 102-Filter inlet; 103-Filter outlet; 104-Water pump; 105-Water pump outlet pipe; 106-Water pump inlet pipe; 107-Drain pipe; 108-Control valve; 109-Fan hood; 110-Fan; 111-First chamber; 112-Second chamber; 113-Third chamber; 114-Fourth chamber; 115-First absorbent filter cotton sheet; 116-First filter hole; 11 7-First wall-mounted liquid collection tank; 118-First connecting pipe; 119-Second wall-mounted liquid collection tank; 120-Second connecting pipe; 121-Spray box; 122-Atomizing nozzle; 123-First guide plate; 124-Second guide plate; 125-Wall-mounted liquid collection tank; 126-Distribution pipe; 127-Second absorbent filter cotton sheet; 128-Second filter hole; 129-Vertical support rod; 130-Liquid collection plate; 131-Filter cover. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0040] In the description of the present application, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, so it should not be construed as a limitation to the present application. In addition, in the description of the present application, if terms such as "first", "second", etc. are used only for differential description, they cannot be construed as indicating or implying relative importance.

[0041] In addition, in the description of the present application, if terms such as "horizontal" and "vertical" are used, it does not mean that the components are required to be absolutely horizontal or hanging vertically, but they can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and it does not mean that the structure must be completely horizontal, but it can be slightly inclined.

[0042] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "install", "connect", "connection" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0043] Embodiment 1:

[0044] As Figures 1 to 10 shown, a multi-level wet gas filtering mechanism includes a gas filtering box body 101. The inside of the gas filtering box body 101 has a first cavity 111, a second cavity 112, a third cavity 113, and a fourth cavity 114 that are sequentially connected. The first cavity 111, the second cavity 112, the third cavity 113, and the fourth cavity 114 are arranged in a "field" shape. A gas filtering inlet 102 connected to the first cavity 111 is provided on the left side of the gas filtering box body 101, a gas filtering outlet 103 connected to the fourth cavity 114 is provided on the right side of the gas filtering box body 101, a water pump 104 is provided on the top of the gas filtering box body 101. An upper section inside the second cavity 112 is provided with a spray box 121, and an atomizing nozzle 122 is provided on the bottom surface of the spray box 121.

[0045] The input end of the water pump 104 is connected to the third cavity 113 through a water pump inlet pipe 106, and the output end of the water pump 104 is connected to the spray box 121 through a water pump outlet pipe 105.

[0046] A first water-absorbing filter cotton sheet 115 is provided between the first cavity 111 and the second cavity 112. A first filter hole 116 is formed in the first water-absorbing filter cotton sheet 115. An arc-shaped transition channel formed by a first guide plate 123 and a second guide plate 124 is provided for connecting the second cavity 112 and the third cavity 113. A second water-absorbing filter cotton sheet 127 is provided between the third cavity 113 and the fourth cavity 114. A second filter hole 128 is formed in the second water-absorbing filter cotton sheet 127. A wind hood 109 is provided on the inner wall surface of the air filter box body 101 where the fourth cavity 114 is communicated with the air filter outlet 103. A fan 110 is provided in the wind hood 109.

[0047] Inside the air filter box body 101, there are a first cavity 111, a second cavity 112, a third cavity 113 and a fourth cavity 114 which are connected in sequence. The first cavity 111, the second cavity 112, the third cavity 113 and the fourth cavity 114 are arranged in a "field" shape. On the one hand, it effectively filters solid particulate matters with various particle diameters in the air, thus improving the air filtering effect of the wet air filtering mechanism. On the other hand, it makes full use of the internal space of the air filter box body 101 to achieve full filtration, enabling the dust-containing air to be subjected to multi-level comprehensive filtration treatment.

[0048] As Figures 1 to 10 shown, in this embodiment, the first cavity 111 is located below the second cavity 112, the third cavity 113 is located below the fourth cavity 114, and the first cavity 111 is located on the left side of the third cavity 113, and the second cavity 112 is located on the left side of the fourth cavity 114.

[0049] With the design that the first cavity 111 is located below the second cavity 112, the third cavity 113 is located below the fourth cavity 114, and the first cavity 111 is located on the left side of the third cavity 113, and the second cavity 112 is located on the left side of the fourth cavity 114, the layout of the multi-level comprehensive filtration is more reasonable.

[0050] As Figures 1 to 10 shown, in this embodiment, a first wall-type liquid accumulation tank 117 with an open top is provided on the inner wall surface on the left side of the second cavity 112. Second wall-type liquid accumulation tanks 119 with open tops are respectively provided on the inner wall surfaces on the front and rear sides of the second cavity 112. The inside of the first wall-type liquid accumulation tank 117 is communicated with the inside of the second wall-type liquid accumulation tank 119 through a first connecting pipe 118, and the outer wall surface of the first connecting pipe 118 is tangent to the inner bottom surface of the first wall-type liquid accumulation tank 117 and the inner bottom surface of the second wall-type liquid accumulation tank 119.

[0051] A first wall-type liquid collection tank 117 with a top opening is provided on the inner wall surface of the left side of the second cavity 112. Second wall-type liquid collection tanks 119 with top openings are respectively provided on the inner walls of the front and rear sides of the second cavity 112. The interior of the first wall-type liquid collection tank 117 and the interior of the second wall-type liquid collection tank 119 are connected by a first connecting pipe 118. The outer wall surface of the first connecting pipe 118 is tangent to the inner bottom surface of the first wall-type liquid collection tank 117 and the inner bottom surface of the second wall-type liquid collection tank 119. This design makes full use of the spray treatment inside the atomizing nozzle 122. Part of the spray inside the second cavity 112 is used to wet the first water-absorbing filter cotton sheet 115, and the other part of the spray inside the second cavity 112 is deposited on the inner wall surface and collected by the first wall-type liquid collection tank 117 and the second wall-type liquid collection tank 119. This re-sorting fully utilizes the spray inside the second cavity 112.

[0052] like Figures 1 to 10 As shown, in this embodiment, the input end of the water pump inlet pipe 106 extends horizontally into the interior of the third cavity 113, and the outer wall surface of the water pump inlet pipe 106 is tangent to the inner bottom surface of the third cavity 113, and a filter cover 131 is provided at the input end of the water pump inlet pipe 106.

[0053] The water pump inlet pipe 106 extends horizontally into the interior of the third cavity 113 from its input end. The outer wall of the water pump inlet pipe 106 is tangent to the inner bottom surface of the third cavity 113. The water pump inlet pipe 106 is designed with a filter cover 131 at its input end to filter impurities and other contaminants from the liquid in the third cavity 113.

[0054] like Figures 1 to 10 As shown, in this embodiment, the right side of the first guide plate 123 and the right side wall inside the air filter box 101 form a vertical transition channel connecting the third cavity 113 and the fourth cavity 114.

[0055] The second absorbent filter cotton sheet 127 is disposed inside the vertical transition channel. The first guide plate 123 is located inside the vertical transition channel, and a wall-mounted liquid collection tank 125 is disposed on its right side above the second absorbent filter cotton sheet 127.

[0056] The bottom right side of the wall-mounted liquid collection tank 125 is provided with multiple horizontally arranged distributing pipes 126. The lower side wall of the distributing pipes 126 is provided with multiple distributing holes arranged along the length direction. The distributing holes are staggered with the second filter holes 128 in the vertical direction.

[0057] The bottom surfaces of the first wall-mounted liquid collection tank 117 and the second wall-mounted liquid collection tank 119 are both higher than the top surface of the wall-mounted liquid collection box 125, and the second wall-mounted liquid collection tank 119 is connected to the wall-mounted liquid collection box 125 through the second connecting pipe 120.

[0058] The design of the first wall-mounted liquid collection tank 117, the first connecting pipe 118, the second wall-mounted liquid collection tank 119, the second connecting pipe 120, the wall-mounted liquid collection box 125, the dispensing pipe 126, the second water-absorbing filter cotton sheet 127, and the second filter hole 128 further improves the filtration effect of the wet air filtration mechanism.

[0059] like Figures 1 to 10 As shown, in this embodiment, the upper side wall of the spray pipe 126 is vertically provided with multiple vertical support rods 129, and the top of each vertical support rod 129 is provided with a liquid collecting plate 130 inclined at 30° to 45° with the horizontal direction. The axial cross section of the liquid collecting plate 130 is "︶" shaped.

[0060] Multiple vertical support rods 129 are vertically arranged on the upper side wall of the dispensing pipe 126. A liquid collecting plate 130, inclined at 30° to 45° to the horizontal, is located at the top of each vertical support rod 129. The axial cross-section of the liquid collecting plate 130 is shaped like a "︶". Air carrying liquid impacts the lower side wall of the liquid collecting plate 130 from bottom to top, causing the liquid-laden air to tumble into the upper concave surface of the liquid collecting plate 130. The liquid collects and, under the influence of gravity, falls along the inclined direction of the liquid collecting plate 130, dripping onto the second absorbent filter cotton sheet 127, further wetting the second absorbent filter cotton sheet 127. The air continues to rise until it is discharged through the air outlet 103.

[0061] like Figures 1 to 10 As shown, in this embodiment, the outer wall surface of the air filter box 101 located below the air filter inlet 102 is provided with a drain pipe 107 that communicates with the first cavity 111, and a control valve 108 is provided on the drain pipe 107.

[0062] A drain pipe 107, which communicates with the first cavity 111, is provided on the outer wall of the air filter box 101 below the air filter inlet 102. The drain pipe 107 is designed with a control valve 108 to facilitate the discharge of dirty liquid.

[0063] Working principle:

[0064] Start the water pump 104, so that a portion of the liquid in the third chamber 113 sequentially enters the filter cover 131, the water pump inlet pipe 106, the water pump 104, the water pump outlet pipe 105, the spray box 121, the atomizing nozzle 122, the second chamber 112, the first absorbent filter cotton sheet 115, the first filter hole 116, and the first chamber 111; the other portion of the liquid in the third chamber 113 sequentially enters the filter cover 131, the water pump inlet pipe 106, the water pump 104, the water pump outlet pipe 105, the spray box 121, the atomizing nozzle 122, the first connecting pipe 118 and / or the second wall-mounted liquid collection tank 119, the second connecting pipe 120, the wall-mounted liquid collection tank 125, the distributing pipe 126, the second absorbent filter cotton sheet 127, the second filter hole 128, and the third chamber 113.

[0065] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A multi-layered wet air filtration mechanism, characterized in that: It includes an air filter box body (101), inside which there are successively connected a first cavity (111), a second cavity (112), a third cavity (113) and a fourth cavity (114). The first cavity (111), the second cavity (112), the third cavity (113) and the fourth cavity (114) are arranged in a "field" shape. An air filter inlet (102) connected to the first cavity (111) is provided on the left side of the air filter box body (101), and an air filter outlet (103) connected to the fourth cavity (114) is provided on the right side of the air filter box body (101). A water pump (104) is provided on the top of the air filter box body (101). In the upper part of the second cavity (112), there is a spray box (121), and atomizing nozzles (122) are provided on the bottom surface of the spray box (121). The input end of the water pump (104) is connected to the third cavity (113) through a water pump inlet pipe (106), and the output end of the water pump (104) is connected to the spray box (121) through a water pump outlet pipe (105). A first water-absorbing filter cotton sheet (1,15) is provided between the first cavity (111) and the second cavity (112), and a first filter hole (1,16) is provided on the first water-absorbing filter cotton sheet (1,15). The second cavity (112) and the third cavity (113) are connected through an arc-shaped transition channel formed by a first guide plate (123) and a second guide plate (124). A second water-absorbing filter cotton sheet (127) is provided between the third cavity (113) and the fourth cavity (114), and a second filter hole (128) is provided on the second water-absorbing filter cotton sheet (127). An air hood (109) is provided on the inner wall surface of the air filter box body (101) where the fourth cavity (114) is connected to the air filter outlet (103), and a fan (110) is provided inside the air hood (109).

2. The multi-layer wet air filtration mechanism according to claim 1, characterized in that: The first cavity (111) is located below the second cavity (112), the third cavity (113) is located below the fourth cavity (114), and the first cavity (111) is located on the left side of the third cavity (113), and the second cavity (112) is located on the left side of the fourth cavity (114).

3. The multi-layer wet air filtration mechanism according to claim 2, characterized in that: On the inner wall surface of the left side of the second cavity (112), there is a first wall-mounted liquid accumulation groove (117) with an open top. On the inner wall surfaces of the front and rear sides of the second cavity (112), there are respectively second wall-mounted liquid accumulation grooves (119) with open tops. The inside of the first wall-mounted liquid accumulation groove (117) is connected to the inside of the second wall-mounted liquid accumulation groove (119) through a first connecting pipe (118), and the outer wall surface of the first connecting pipe (118) is tangent to the inner bottom surface of the first wall-mounted liquid accumulation groove (117) and the inner bottom surface of the second wall-mounted liquid accumulation groove (119).

4. The multi-layer wet air filtration mechanism according to claim 3, characterized in that: The input end of the water pump inlet pipe (106) extends horizontally into the interior of the third cavity (113), and the outer wall surface of the water pump inlet pipe (106) is tangent to the inner bottom surface of the third cavity (113), and a filter cover (131) is provided at the input end of the water pump inlet pipe (106).

5. A multi-layer wet air filtration mechanism according to claim 4, characterized in that: The right side of the first guide plate (123) and the right side wall inside the air filter box (101) form a vertical transition channel connecting the third cavity (113) and the fourth cavity (114). The second absorbent filter cotton sheet (127) is disposed inside the vertical transition channel. The first guide plate (123) is located inside the vertical transition channel and a wall-mounted liquid collection tank (125) is disposed on the right side above the second absorbent filter cotton sheet (127). The bottom right side of the wall-mounted liquid collection tank (125) is provided with multiple horizontally arranged distributing pipes (126). The lower side wall of the distributing pipes (126) is provided with multiple distributing holes arranged along the length direction. The distributing holes and the second filter holes (128) are staggered in the vertical direction. The bottom surfaces of the first wall-mounted liquid collection tank (117) and the second wall-mounted liquid collection tank (119) are both higher than the top surface of the wall-mounted liquid collection box (125), and the second wall-mounted liquid collection tank (119) is connected to the wall-mounted liquid collection box (125) through the second connecting pipe (120).

6. The multi-layer wet air filtration mechanism according to claim 5, characterized in that: The upper side wall of the spray pipe (126) is vertically provided with multiple vertical support rods (129), and the top of the vertical support rods (129) is provided with a liquid collecting plate (130) inclined at 30° to 45° with the horizontal direction. The axial cross section of the liquid collecting plate (130) is "︶".

7. A multi-layer wet air filtration mechanism according to claim 6, characterized in that: The filter box (101) is provided with a drain pipe (107) on the outer wall below the filter inlet (102) and communicates with the first cavity (111). A control valve (108) is provided on the drain pipe (107).

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