DMF (Dimethyl Formamide) waste gas water spraying device

Abstract

The utility model discloses a DMF (Dimethyl Formamide) waste gas water spraying device which comprises a tower body, a gas inlet assembly is mounted on one side of the lower part of the tower body in a matching manner, the gas inlet assembly comprises a gas inlet frame body, the middle part of the gas inlet frame body is detachably connected with a waste gas filtering part, and at least one group of spraying assemblies are arranged in the tower body. The spraying assemblies are connected with the water supply assembly in a matched mode through connecting pipes, at least one set of padding correspondingly located below the corresponding spraying assemblies is arranged in the tower body, a turbulent flow assembly matched with the air inlet assembly is arranged on the lower portion of the tower body, and a flow equalizing plate located above the turbulent flow assembly is arranged in the tower body. A turbulent flow assembly located above the filler is arranged in the middle of the tower body, the top of the tower body is in matched connection with an air exhaust filtering assembly through a matched connection guide pipe, and a waste liquid collecting device is arranged at the bottom of the tower body; according to the utility model, the waste gas purification efficiency is improved, the discharging speed of the filler is improved, and the overall working efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of synthetic leather production waste gas treatment equipment, in particular to a DMF waste gas water spraying device. Background Art

[0002] Synthetic leather production enterprises mainly have two processes: wet production and dry production. In the process of synthetic leather production, due to the use of a large number of volatile organic solvents (such as DMF, toluene, etc.), especially in the process of production surface treatment, products coated with a large amount of organic solvents will produce a large amount of volatile DMF-containing waste gas when they are treated at a high temperature of 60-170°C in a closed oven. The amount of waste gas generated by the dry production line accounts for about 95% of the waste gas in the entire synthetic leather industry. Generally, the intermediate agent of dry production is composed of about 70% DMF and about 30% other solvents (toluene, butanone). About 85% of these solvents are volatilized in the oven. If they are discharged directly, it will affect the health of workers and nearby shop owners and pollute the atmospheric environment. Therefore, these waste gases need to be treated to achieve safe discharge. In the prior art, the waste gas directly enters the spray tower from the air inlet pipe. The waste gas entering the tower may go directly upward, resulting in uneven waste gas in the tower and poor spraying effect. Utility Model Content

[0003] The purpose of the utility model is to provide a DMF waste gas water spraying device to solve the problems raised in the above background technology.

[0004] To achieve the above purpose, the utility model is implemented by the following technical means:

[0005] A DMF waste gas water spray device comprises a tower body, an air intake assembly for waste gas to enter is installed on one side of the lower part of the tower body, the air intake assembly comprises an air intake frame matched with the air inlet of the tower body, the middle part of the air intake frame is detachably connected with a waste gas filter component, the air intake end of the air intake frame is connected with an air intake end piece equipped with a plurality of air intake pipes, the air outlet end of the air intake frame is provided with a guide plate located on one side of the waste gas filter component and used for waste gas diversion, at least one group of spray assemblies are arranged inside the tower body, each spray assembly is respectively connected with a water supply assembly through a connecting pipe, at least one group of fillers respectively corresponding to the lower part of the tower body are arranged inside the tower body, a spoiler assembly matched with the air intake assembly is arranged at the lower part of the tower body, a flow equalizing plate located above the spoiler assembly is arranged inside the tower body, a turbulent flow assembly located above the filler is arranged in the middle part of the tower body, the top of the tower body is matched with the air extraction filter assembly through a matching connecting conduit, and a waste liquid collecting device is arranged at the bottom of the tower body.

[0006] Compared with the prior art, the utility model has the following beneficial effects:

[0007] The utility model cooperates with the guide plate, the spoiler component, the turbulent flow component, and combines the filler and the corresponding spray component, so that the exhaust gas is evenly dispersed by the spoiler component after passing through the guide plate, so that the exhaust gas can be evenly dispersed at the lower end of the tower body, thereby improving the exhaust gas purification efficiency. After passing through the bottom layer of filler, the exhaust gas is dispersed and evenly flowed by the turbulent flow component, so that the exhaust gas can be evenly distributed inside the spray tower body, thereby improving the discharge speed of the filler, improving the overall working efficiency of the device, and reducing labor and other processing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic diagram of the product structure in the embodiment of the utility model;

[0009] Figure 2 This is a schematic diagram of a partial cutaway structure of a product in an embodiment of the utility model;

[0010] Figure 3 This is a schematic diagram of the top view of the product structure in the embodiment of the utility model;

[0011] Figure 4 In the embodiment of the utility model, Figure 3 AA section structural diagram;

[0012] Figure 5 This is a schematic diagram of the structure of a part of the product in the embodiment of the utility model;

[0013] Figure 6 This is a schematic diagram of the structure of a part of the product in the embodiment of the utility model;

[0014] Figure 7 This is a schematic diagram of the structure of a part of the product in the embodiment of the utility model;

[0015] Figure 8 This is a schematic diagram of the structure of a part of the product in the embodiment of the utility model;

[0016] Fig. 9 This is a schematic diagram of the structure of a part of the product in the embodiment of the utility model;

[0017] Fig.10 This is a schematic diagram of the structure of a part of the product in the embodiment of the utility model;

[0018] Fig.11 This is a schematic diagram of the structure of a part of the product in the embodiment of the utility model;

[0019] Fig.12 This is a schematic diagram of the structure of a part of the product in the embodiment of the utility model;

[0020] Fig.13 This is a schematic diagram of the structure of the product in the embodiment of the utility model. DETAILED DESCRIPTION

[0021] The following is a detailed description of the embodiments of the technical solution of the present application in conjunction with the accompanying drawings. The following embodiments and drawings are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application. The accompanying drawings only schematically show the parts related to the technical solution of the present application, and they do not represent the actual structure of the product.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0023] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two), similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0024] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0026] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0027] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0028] Synthetic leather production enterprises mainly have two processes: wet production and dry production. In the process of synthetic leather production, due to the use of a large number of volatile organic solvents (such as DMF, toluene, etc.), especially in the process of production surface treatment, products coated with a large amount of organic solvents will produce a large amount of volatile DMF-containing waste gas when they are treated at a high temperature of 60-170°C in a closed oven. The amount of waste gas generated by the dry production line accounts for about 95% of the waste gas in the entire synthetic leather industry. Generally, the intermediate agent of dry production is composed of about 70% DMF and about 30% other solvents (toluene, butanone). About 85% of these solvents are volatilized in the oven. If they are discharged directly, it will affect the health of workers and nearby shop owners and pollute the atmospheric environment. Therefore, these waste gases need to be treated to achieve safe discharge. In the prior art, the waste gas directly enters the spray tower from the air inlet pipe. The waste gas entering the tower may go directly upward, resulting in uneven waste gas in the tower and poor spraying effect.

[0029] In a possible embodiment of the utility model, a DMF waste gas water spray device includes a tower body 1, an air intake assembly 2 for exhaust gas entry is installed on one side of the lower part of the tower body 1, the air intake assembly 2 includes an air intake frame 21 that cooperates with the air inlet of the tower body 1, the middle part of the air intake frame 21 is detachably connected to an exhaust gas filter component 22, the air intake end of the air intake frame 21 is connected to an air intake end piece 23 equipped with a plurality of air intake pipes 24, the air outlet end of the air intake frame 21 is provided with a guide plate 25 located on one side of the exhaust gas filter component 22 and used for exhaust gas diversion, and the interior of the tower body 1 is provided with a non- There is less than one group of spray assemblies 3, and each spray assembly 3 is respectively connected to the water supply assembly 4 through a connecting pipe. The interior of the tower body 1 is provided with at least one group of fillers 5 corresponding to and located below the corresponding spray assemblies 3. The lower part of the tower body 1 is provided with a spoiler assembly 6 that cooperates with the air intake assembly 2. The interior of the tower body 1 is provided with a flow equalizing plate 7 located above the spoiler assembly 6. The middle part of the tower body 1 is provided with a turbulent flow assembly 8 located above the bottom filler 5. The top of the tower body 1 is connected to the exhaust filter assembly 9 through a connecting conduit, and the bottom of the tower body 1 is provided with a waste liquid collection device 10.

[0030] In a possible embodiment of the utility model, in combination with the accompanying drawings, an air inlet 11 is opened on the lower right side of the tower body 1, which can be connected with the air inlet assembly 2, and its shape is matched with the air inlet assembly 2. Three groups of observation windows 12 are equidistantly arranged on the front side of the tower body 1, providing multiple groups of observation perspectives for observing the internal situation of the tower body 1.

[0031] In a possible embodiment of the present utility model, in order to filter hazardous waste in the exhaust gas, a corresponding component for filtering the exhaust gas is set in the air intake assembly 2. Specifically, the air intake frame 21 in the air intake assembly 2 has a rectangular annular structure in cross section, which is used to circulate and guide the exhaust gas. Of course, the air intake frame 21 in the utility model can also adopt other shapes, depending on the specific situation. An opening 211 that cooperates with the exhaust gas filter component 22 is opened at the middle position of the top surface of the air intake frame 21. In order to effectively determine the exhaust gas filter component 22, accordingly, The two vertical side plates of the air intake frame 21 are respectively provided with vertical placement grooves 212 that match the opening 211, and the bottom plate of the air intake frame 21 is respectively provided with a horizontal placement groove 213 that matches the two vertical placement grooves, so that the exhaust gas filter component 22 can be engaged. In order to fix the exhaust gas filter component 22, the two sides of the opening 211 of the air intake frame 21 are symmetrically provided with fixing grooves 214 that match the exhaust gas filter component 22, and the two fixing grooves 214 are respectively provided with fixing holes 215 for fixing the exhaust gas filter component 22;

[0032] Correspondingly, the exhaust gas filter component 22 includes a fixing frame 221, and a filter element 222 for filtering the exhaust gas is detachably connected inside the fixing frame 221, wherein the filter element 222 includes a fixing frame 2221, and a plurality of evenly distributed fixing holes 2222 are provided on the upper surface of the bottom plate of the fixing frame 2221, and a plurality of movable holes 2223 corresponding to the fixing holes 2222 on the bottom plate are movably installed on the fixing frame 2221. In order to keep each activated carbon adsorption rod 2224 relatively fixed, a sealing plate fixing groove 2225 is provided on the upper surface of the fixing frame 2221, and a sealing plate 2226 is connected to the sealing plate fixing groove 2225. The sealing plate 2226 is installed in the sealing plate fixing groove 2225, so that each activated carbon adsorption rod 2224 can be stably fixed in the fixing frame 2221, and the adsorption and filtration treatment of the exhaust gas is completed, which is convenient for cleaning the inner wall of the tower body 1. At the same time, the exhaust gas can be dispersed, which is convenient for disturbing the exhaust gas and improving the uniformity of the exhaust gas entering the interior of the tower body 1;

[0033] In combination with the above embodiment, this embodiment provides a detachable connection method between the filter element 222 and the fixing frame 221, specifically, a fixing boss 2211 is provided at the center line position of each inner side wall of the fixing frame 221, and threaded holes (not marked in the figure) are respectively provided at the four corners of the fixing boss 2211, and each outer side wall of the fixing frame 2221 is correspondingly matched with each inner side wall of the fixing frame 221, and threaded connection holes (not marked in the figure) corresponding to the threaded holes are provided at the four corners of the fixing frame 2221, so that the fixing frame 2221 can be installed inside the fixing frame 221 by corresponding screws or bolts;

[0034] Through the above arrangement, the activated carbon adsorption rod 2224 can be detachably replaced, which is convenient for replacement, can filter the exhaust gas, and is convenient for guiding the exhaust gas, thereby improving the turbulence effect.

[0035] In a possible embodiment of the utility model, the guide plate 25 is installed inside the air intake frame 21, and it can be seen from the accompanying drawings that it is vertically arranged at the rear side of the air intake frame 21. The guide plate 25 is a structural member that is large at both ends and small in the middle and has arc grooves symmetrically opened on both sides. The two symmetrical arc side edges of the end face of the guide plate 25 that connects with the exhaust gas are both chamfered, and the central axis of the guide plate 25 is located on the internal central symmetry plane of the air intake frame 21. Through the central setting of the guide plate 25, the exhaust gas passing through the guide plate 25 can be relatively concentratedly guided to the spoiler component 6, which is convenient for disturbing and breaking up the exhaust gas.

[0036] In a possible embodiment of the utility model, the spoiler assembly 6 includes a first drive motor 61 installed on the outside of the tower body 1, and the output end of the first drive motor 61 is cooperatively connected with a first connecting shaft 62 one end of which extends into the interior of the tower body 1, and the first connecting shaft 62 is fixedly mounted with a spiral spoiler blade 63 located inside the tower body 1. It can be seen from the accompanying drawings that the spiral spoiler blade 63 is located on the rear side of the air inlet 11 of the tower body 1. When the exhaust gas is initially guided by the guide plate 5, the spiral spoiler blade 63 can reduce the rising speed of the exhaust gas flow under the rotation of the spiral spoiler blade 63, thereby achieving a spoiler effect on the exhaust gas.

[0037] In a possible embodiment of the present utility model, the turbulence component 8 includes a rotating shaft 81 movably installed inside the tower body 1, the central axis of the rotating shaft 81 coincides with the central axis of the tower body 1, the bottom of the rotating shaft 81 is connected to a mounting plate 82, and the lower surface of the mounting plate 82 is equipped with a plurality of turbulence components 83 arranged on both sides of the rotating shaft, and the top of the rotating shaft 81 is connected to a bevel gear A84, which is in transmission cooperation with a bevel gear B86 installed at the end of a second connecting shaft 85, and the other end of the second connecting shaft 85 extends out of the tower body 1 and is transmission connected to a second drive motor 87 installed outside the tower body 1, and the second connecting shaft 85 is driven to rotate by the second drive motor 87, thereby driving the rotating shaft 81 to rotate, thereby driving each turbulence component 83 to move in a circular motion. Of course, the arrangement direction of each turbulence component 83 can be arranged according to actual needs, as disclosed in the attached figure of this utility model. A distribution method of turbulence components 83.

[0038] In a possible embodiment of the present invention, the turbulence component 83 is a plate structure, which is distributed in a stepped manner from the front end to the rear end, and the top is a plane. The front end, lower end and rear end of the turbulence component 83 are evenly connected arc structures, and the rear end of the turbulence component 83 is provided with a plurality of groups of slots 831 distributed parallel to each other. In specific applications, the size of each slot 831 is set as needed. The exhaust gas is cut by the front end of the turbulence component 83, and cooperated with its rear end and the slot 831 to further disperse the exhaust gas passing through the filler 5, so that the exhaust gas enters the next layer of filler 5 for a more complete reaction, thereby improving the discharge speed of the filler 5, improving the overall working efficiency of the device, and reducing labor and other processing costs.

[0039] In some other embodiments of the present utility model, the air extraction filter assembly 9, the waste liquid collection device 10 and the water supply assembly 4 are conventional technologies in the art. For example, the water supply assembly 4 includes a water tank and a water pump, and the water pump is used to supply water to each spray assembly 3 to achieve spraying;

[0040] The spray assembly 3 includes a liquid supply pipeline 31 and a plurality of spray heads 32 arranged on the lower surface of the liquid supply pipeline 31. The liquid supply pipeline 31 includes a main liquid supply pipe 311. The main liquid supply pipe 311 is provided with a plurality of auxiliary liquid supply pipes 312 of different lengths and connected to the main liquid supply pipe 311 on both sides along the water inlet end to the other end thereof. The lower surface of each auxiliary liquid supply pipe 312 is provided with a plurality of spray heads 32 connected thereto.

[0041] Of course, in order to achieve a better spraying effect, the diameter of the main liquid supply pipe 311 gradually decreases from its water inlet end to its free end. Similarly, the diameter of the auxiliary liquid supply pipe 312 gradually decreases from its water inlet end to its free end. The structure of a spray assembly 3 is disclosed in the accompanying drawings of the utility model. In the specific application of the utility model, it can be set according to actual needs.

[0042] In a possible embodiment of the utility model, a DMF waste gas water spray device includes a tower body 1, an air intake assembly 2 for exhaust gas entry is installed on one side of the lower part of the tower body 1, the air intake assembly 2 includes an air intake frame 21 that cooperates with the air inlet of the tower body 1, and the middle part of the air intake frame 21 is detachably connected to an exhaust gas filter component 22, and the air intake end of the air intake frame 21 is connected to an air intake end piece 23 equipped with two groups of air intake pipes 24, and the two groups of air intake pipes 24 are arranged up and down, and the air outlet end of the air intake frame 21 is provided with a guide plate 25 located on one side of the exhaust gas filter component 22 and used for exhaust gas diversion, so that the exhaust gas passing through the guide plate 25 can be relatively concentrated and guided to the spoiler assembly 6, so as to facilitate the spoiler and dispersion of the exhaust gas, and the interior of the tower body 1 is provided with two groups of spray assemblies 3 distributed up and down, and the two groups of spray assemblies 3 are respectively connected to the water supply assembly 4 through connecting pipes, and the interior of the tower body 1 is provided with two groups of spray assemblies corresponding to the corresponding spray assemblies. The packing 5 below the component 3, the lower part of the tower body 1 is provided with a spoiler component 6 that cooperates with the air intake component 2, the tower body 1 is provided with a flow equalizing plate 7 located above the spoiler component 6, the middle part of the tower body 1 is provided with a turbulence component 8 located above the bottommost packing 5, the top of the tower body 1 is connected with the exhaust filter component 9 through a matching connecting conduit, and the bottom of the tower body 1 is provided with a waste liquid collection device 10. The utility model cooperates with the guide plate 25, the spoiler component 6, and the turbulence component 8, and combines the packing 5 and the corresponding spray component 3, so that the exhaust gas is evenly dispersed by the spoiler component 6 after passing through the guide plate 25, so that the exhaust gas can be evenly dispersed at the lower end of the tower body 1, thereby improving the exhaust gas purification efficiency. After passing through the bottom packing 5, it is dispersed and evenly distributed by the turbulence component 8, so that the exhaust gas can be evenly distributed inside the spray tower body, thereby improving the discharge speed of the packing, improving the overall working efficiency of the device, and reducing labor and other processing costs.

[0043] The specific embodiments disclosed in the present utility model fall within the protection scope of the claims of the present utility model, and are the specific lower-level implementation scope of the characteristic parts of the present utility model. The protection content of the specific embodiments is merely an explanation of the protection scope of the claims of the present utility model. The protection scope of the present utility model is not limited to the protection content of the specific embodiments, and the protection content of the specific embodiments should not be understood as a limitation on the protection scope of the claims of the present utility model.

Claims

1. A DMF waste gas water spraying device, comprising a tower body (1), characterized in that: An air intake assembly (2) for exhaust gas to enter is mounted on one side of the lower part of the tower body (1), the air intake assembly (2) comprising an air intake frame (21) matched with the air intake port of the tower body (1), an exhaust gas filter component (22) is detachably connected to the middle of the air intake frame (21), an air intake end of the air intake frame (21) is connected to an air intake end piece (23) equipped with a plurality of air intake pipes (24), a guide plate (25) located on one side of the exhaust gas filter component (22) and used for exhaust gas diversion is arranged at the air outlet end of the air intake frame (21), and at least one group of spray assemblies (3) are arranged inside the tower body (1), and each spray assembly (3) is respectively The tower body (1) is connected to the water supply assembly (4) through a connecting pipe, and at least one group of fillers (5) corresponding to the fillers (5) located below the corresponding spray assemblies (3) are arranged inside the tower body (1). The lower part of the tower body (1) is provided with a spoiler assembly (6) that cooperates with the air intake assembly (2). The tower body (1) is provided with a flow equalizing plate (7) located above the spoiler assembly (6). The middle part of the tower body (1) is provided with a turbulent assembly (8) located above the filler (5) at the bottom. The top of the tower body (1) is connected to the air extraction filter assembly (9) through a connecting conduit, and the bottom of the tower body (1) is provided with a waste liquid collection device (10).

2. A DMF waste gas water spraying device according to claim 1, characterized in that: The air intake frame (21) in the air intake assembly (2) has a rectangular annular structural member in cross section. An opening (211) cooperating with an exhaust gas filter component (22) is provided at a middle position of a top surface of the air intake frame (21). Two vertical side panels of the air intake frame (21) are respectively provided with vertical placement grooves (212) cooperating with the opening (211). A bottom plate of the air intake frame (21) is respectively provided with horizontal placement grooves (213) cooperating with the two vertical placement grooves. Fixed grooves (214) cooperating with the exhaust gas filter component (22) are symmetrically provided on both sides of the opening (211) of the air intake frame (21). Fixed holes (215) for fixing the exhaust gas filter component (22) are respectively provided in the two fixed grooves (214).

3. A DMF waste gas water spraying device according to claim 1, characterized in that: The exhaust gas filtering component (22) comprises a fixing frame (221), a filter element (222) for filtering the exhaust gas being detachably connected inside the fixing frame (221), the filter element (222) comprising a fixing frame (2221), a plurality of evenly distributed fixing holes (2222) being provided on the upper surface of the bottom plate of the fixing frame (2221), a fixing slot hole (2223) corresponding to each fixing slot (2222) on the bottom plate being provided on the upper surface of the fixing frame (2221), a plurality of activated carbon adsorption rods (2224) passing through the fixing slot holes (2223) and having ends connected to the fixing slots (2222) being movably mounted on the fixing frame (2221), a sealing plate fixing slot (2225) being provided on the upper surface of the fixing frame (2221), and a sealing plate (2226) being correspondingly connected to the sealing plate fixing slot (2225).

4. A DMF waste gas water spraying device according to claim 3, characterized in that: A fixing boss (2211) is provided at the center line position of each inner side wall of the fixing frame (221), and threaded holes are respectively provided at the four corners of the fixing boss (2211). Each outer side wall of the fixing frame (2221) corresponds to each inner side wall of the fixing frame (221), and threaded connection holes corresponding to the threaded holes are provided at the four corners of the fixing frame (2221).

5. A DMF waste gas water spraying device according to claim 1, characterized in that: The guide plate (25) is installed inside the air intake frame (21), and is vertically arranged at the rear side of the air intake frame (21). The guide plate (25) is a structural member that is larger at both ends and smaller in the middle, and has arc grooves symmetrically opened on both sides. The two symmetrical arc side edges of the end surface of the guide plate (25) that contacts the exhaust gas are both chamfered.

6. A DMF waste gas water spraying device according to claim 1, characterized in that: The spoiler assembly (6) comprises a first drive motor (61) mounted outside the tower body (1); an output end of the first drive motor (61) is cooperatively connected to a first connecting shaft (62) one end of which extends into the interior of the tower body (1); and a spiral spoiler blade (63) located inside the tower body (1) is fixedly mounted on the first connecting shaft (62).

7. A DMF waste gas water spraying device according to claim 1, characterized in that: The turbulent flow assembly (8) comprises a rotating shaft (81) movably mounted inside the tower body (1), the central axis of the rotating shaft (81) coincides with the central axis of the tower body (1), the bottom of the rotating shaft (81) is connected to a mounting plate (82), the lower surface of the mounting plate (82) is mounted with a plurality of turbulent flow components (83) arranged in groups on both sides of the rotating shaft, the top of the rotating shaft (81) is connected to a bevel gear A (84), the bevel gear A (84) is in driving cooperation with a bevel gear B (86) mounted at the end of a second connecting shaft (85), and the other end of the second connecting shaft (85) extends out of the tower body (1) and is drivingly connected to a second drive motor (87) mounted outside the tower body (1).

8. A DMF waste gas water spraying device according to claim 7, characterized in that: The turbulent flow component (83) is a plate structure, which is distributed in a stepped manner from the front end to the rear end, and the top is a plane. The front end, the lower end and the rear end of the turbulent flow component (83) are evenly connected arc structures, and the rear end of the turbulent flow component (83) is provided with a plurality of groups of slots (831) distributed parallel to each other.

9. A DMF waste gas water spraying device according to claim 1, characterized in that: The spray assembly (3) comprises a liquid supply pipeline (31) and a plurality of spray heads (32) arranged on the lower surface of the liquid supply pipeline (31), wherein the liquid supply pipeline (31) comprises a main liquid supply pipe (311), and the main liquid supply pipe (311) is provided with a plurality of groups of auxiliary liquid supply pipes (312) of different lengths and connected to the main liquid supply pipe (311) on both sides along the water inlet end to the other end thereof, and the lower surface of each of the auxiliary liquid supply pipes (312) is provided with a plurality of groups of spray heads (32) connected thereto.

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