Waste gas recovery treatment equipment

Abstract

The invention relates to waste gas recovery treatment equipment which comprises a mixing tank assembly, a waste gas recovery device and a waste gas recovery device, the mixing tank assembly comprises a tank body and a treatment cavity, and the treatment cavity is formed in the inner side of the tank body; the mixing part comprises an outer cylinder, liquid drainage holes, an exhaust pipe and an exhaust hole, a plurality of liquid drainage holes are uniformly formed in the inner side of the outer cylinder, the liquid drainage holes are obliquely formed, and an opening, close to one end of the exhaust pipe, of each liquid drainage hole is higher than an opening, away from one end of the exhaust pipe, of each liquid drainage hole. Through use of the throwing assembly, the problems that treatment medicine cannot be added due to backward flowing of water and liquid, when a movable cavity rotates along with a rotary drum and reaches the bottom of a rotary cavity, a gravity ball in the movable cavity moves downwards along a limiting shaft of a second partition plate, a film is pressed to protrude towards the inner side of the rotary cavity, and liquid in an inner cavity of the rotary cavity is extruded can be effectively solved; and the liquid enters the channel in the discharge cylinder and reaches the threaded connection pipe through the through groove along the discharge cylinder.

Description

Technical Field

[0001] The present invention belongs to the field of waste gas recovery and treatment equipment, and specifically relates to a waste gas recovery and treatment equipment. Background Art

[0002] The waste gas produced in the production of waste heat boilers mainly refers to various waste gases, waste liquids, waste residues, etc. generated during the production process of waste heat boilers; among them, the waste gas may include flue gas generated by fuel combustion, volatile organic gases generated during the production process, etc.; if these waste materials are directly discharged without treatment, they will have a serious impact on the environment and human health; therefore, treatment and control are required to reduce the impact on the environment and humans.

[0003] When treating waste gas in the prior art, a step of adding treatment agents is required. The addition and mixing efficiency of the existing addition methods are both low. When the waste gas enters the water liquid, it is often stirred by a stirring mechanism, resulting in too many structures in the device and an increased risk of failure. Therefore, a waste gas recovery and treatment equipment is proposed. Summary of the Invention

[0004] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the following technical problems existing in the prior art: the addition and mixing efficiency of the existing addition methods are both low. When the waste gas enters the water liquid, it is often stirred by a stirring mechanism, resulting in too many structures in the device and an increased risk of failure.

[0006] To solve the above technical problems, the present invention provides the following technical solution: a waste gas recovery and treatment equipment, comprising:

[0007] A mixing tank assembly, the mixing tank assembly includes a tank body and a treatment chamber, and the treatment chamber is provided inside the tank body;

[0008] A mixing member, the mixing member includes an outer cylinder, liquid discharge holes, an exhaust pipe, and exhaust holes. A plurality of liquid discharge holes are evenly provided inside the outer cylinder. The liquid discharge holes are inclined. The opening of the liquid discharge hole at one end close to the exhaust pipe is higher than the opening at the end far from the exhaust pipe. The exhaust pipe extends from the bottom end of the tank body and is inserted into the middle position of the liquid discharge hole. There is a gap between the exhaust pipe and the outer cylinder without contact. Exhaust holes are provided on the exhaust pipe, and the exhaust holes are inclined. The part of the exhaust hole close to the edge is higher than the part close to the middle;

[0009] A liquid injection assembly, the liquid injection assembly is arranged at the top of the mixing member;

[0010] A dosing component, which is installed at the top of the mixing tank component, and the bottom end of the dosing component is connected to the mixing part.

[0011] As a preferred technical solution of an exhaust gas recovery and treatment device, the mixing part further includes a top cover, a connecting platform, a threaded connecting pipe and a connecting cylinder. The mixing tank component further includes a communication groove. The inner top wall of the treatment chamber is provided with a communication groove. The threaded connecting pipe passes through the connecting platform and is threadedly connected to the communication groove. The bottom end of the threaded connecting pipe is provided with a top cover. The upper side of the top cover abuts against the bottom end of the connecting platform. The top cover is provided with a plurality of connecting cylinders. The middle part of the top of the outer cylinder is fixedly connected to the connecting platform. Drainage holes are distributed in the cavity formed by the top cover and the top of the outer cylinder. The middle part of the outer cylinder is recessed to form a contact groove. The exhaust pipe extends into the contact groove;

[0012] The threaded connecting pipe locks the connection between the connecting platform and the tank body, and communicates the dosing component and the treatment chamber, so that the treatment medicine in the dosing component can be put into the inner cavity of the contact groove, and then mixed with the water liquid and the exhaust gas.

[0013] As a preferred technical solution of an exhaust gas recovery and treatment device, the dosing component includes a dosing platform, a dosing groove, a rotating cavity and a discharge cylinder. The top end of the dosing platform is provided with a dosing groove. The middle part of the dosing platform is provided with a rotating cavity. The dosing groove and the rotating cavity are connected. The bottom end of the rotating cavity is provided with a discharge cylinder. The mixing part further includes a connecting cylinder. The discharge cylinder is inserted into the communication groove. There are two connecting cylinders between the communication groove and the threaded connecting pipe;

[0014] Put the treatment medicine into the dosing groove, and then it is divided into multiple parts by the first partition plate and added to the discharge cylinder in sequence.

[0015] As a preferred technical solution of an exhaust gas recovery and treatment device, the dosing component further includes a first partition plate, a rotating cylinder, a movable cavity, a dividing plate and a central column. The rotating cylinder is located in the middle of the rotating cavity and their central axes coincide. The rotating cylinder is a cylinder. The central column is located in the middle of the rotating cylinder. The central column and the rotating cylinder are connected by a dividing plate. The dividing plate divides the inner cavity of the rotating cylinder into several movable cavities. A plurality of first partition plates are evenly arranged on the outer peripheral surface of the rotating cylinder. The first partition plate is in close contact with the inner wall of the rotating cavity. The rotating cylinder is rotatably connected to the rotating cavity;

[0016] The dosing component further includes a partition groove, a gravity ball, a partition plate two limiting shaft, an elastic rope and a film. A plurality of partition grooves are formed on the circumferential surface of the dosing component, and the partition grooves correspond to the movable cavities one by one. A plurality of partition plate two limiting shafts are arranged on the central column, and the partition plate two limiting shafts correspond to the movable cavities one by one. An elastic rope is further arranged on the partition plate two limiting shafts. The elastic ropes and the films are respectively connected correspondingly. A gravity ball is slidably connected to the outside of the partition plate two limiting shaft;

[0017] When a certain gravity ball reaches the bottom of the rotating cavity, it will move down along the partition plate two limiting shaft, pressing the film to protrude towards the inside of the rotating cavity, squeezing the liquid in the inner cavity of the rotating cavity, so that the liquid enters the channel in the discharge cylinder, and reaches the threaded connection pipe along the discharge cylinder through the connecting cylinder until it reaches the inside of the top cover and the contact groove.

[0018] As a preferred technical solution of an exhaust gas recovery and treatment device, a sealing member is arranged at the bottom of the treatment cavity. The sealing member is sleeved on the exhaust pipe. The sealing member includes a sealing bag and a sealing ring. A plurality of sealing rings are arranged inside the sealing bag. The sealing rings are movably connected to the exhaust pipe;

[0019] When the liquid squeezes the surface of the sealing bag, it will make the inner side of the sealing ring fit more tightly with the outer side of the exhaust pipe, thereby making the exhaust pipe and the tank body more sealed.

[0020] As a preferred technical solution of an exhaust gas recovery and treatment device, the liquid injection component includes a liquid distribution ring, a liquid injection pipe and an external pipe. A liquid injection pipe is arranged at the bottom end of the liquid distribution ring. The liquid injection pipe is connected to and communicates with the top end of the outer cylinder. An external pipe is arranged at the top end of the liquid distribution ring;

[0021] The liquid distribution ring disperses the liquid into the channel of the outer cylinder through the liquid injection pipe, and then injects it into the contact groove through the liquid discharge hole. The exhaust pipe disperses the exhaust gas into the contact groove through the exhaust hole to mix with the liquid. Part of the liquid reaches above the top cover through the liquid discharge hole, and then is injected into the inside of the top cover through the connecting cylinder to be dispersed and mixed with the treatment medicine flowing in from the threaded connection pipe.

[0022] As a preferred technical solution of an exhaust gas recovery and treatment device, a liquid collecting component is arranged on the outside of the top of the tank body. The liquid collecting component includes a liquid collecting ring, a liquid suction channel and a liquid discharge pipe. A liquid suction channel is formed in the inner cavity of the liquid collecting ring. The liquid suction channel communicates with the treatment cavity. A liquid discharge pipe is arranged on the outside of the liquid collecting ring;

[0023] The liquid collecting component drains the treated water liquid through the liquid suction channel.

[0024] Advantages of an exhaust gas recovery and treatment device of the present invention: Through the use of the dosing component, it can effectively prevent the inability to add treatment chemicals due to backflow of water. As the rotating cylinder rotates, the movable cavity reaches the bottom of the rotating cavity, and the gravity balls in the movable cavity will move downward along the limiting shaft of the second partition plate, pressing the membrane to protrude towards the inside of the rotating cavity, squeezing the liquid in the inner cavity of the rotating cavity, causing the liquid to enter the channel in the discharge cylinder and reach the threaded connecting pipe through the connecting cylinder until it reaches the inside of the top cover and the contact groove. The gravity balls located at the top of the rotating cavity are completely immersed in the movable cavity, and the elastic rope pulls the membrane to indent into the movable cavity, increasing the space between the corresponding two first partition plates to accommodate the treatment chemicals. Even if water enters the rotating cavity through the discharge cylinder, the indented membrane will also increase the space to accommodate the treatment chemicals. The treatment chemicals are put into the inner cavity of the contact groove and then mixed with the water and exhaust gas;

[0025] Through the use of the mixing component and the liquid injection component, without using a stirring structure, sufficient mixing can be achieved. The liquid distribution ring disperses the liquid into the channels of the outer cylinder through the liquid injection pipe and then injects it into the contact groove through the drain holes. The exhaust pipe disperses the exhaust gas into the contact groove through the exhaust holes to mix with the sufficient liquid. Part of the liquid reaches above the top cover through the drain holes and then is injected into the inside of the top cover through the connecting cylinder to be dispersed and mixed with the treatment chemicals flowing in from the threaded connecting pipe. During this period, the water and exhaust gas are sprayed relatively and upward and finally move downward together to achieve sufficient mixing. Sulfur dioxide, nitrogen oxides, and volatile organic compounds in the exhaust gas are absorbed by the water, and the acidic substances generated are neutralized by the treatment chemicals. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for description in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. Among them:

[0027] Figure 1 is a front structural schematic diagram of the present invention;

[0028] Figure 2 is a three-dimensional structural schematic diagram of the liquid collecting component of the present invention;

[0029] Figure 3 For the present invention Figure 1 is a partial enlarged structural schematic diagram of part A in the present invention;

[0030] Figure 4 For the present invention Figure 1 is a partial enlarged structural schematic diagram of part B in the present invention;

[0031] Figure 5 For the present invention Figure 1Partial enlarged structural schematic diagram of part C;

[0032] Figure 6 For the present invention Figure 1 Partial enlarged structural schematic diagram of part D in the present invention.

[0033] Reference numerals: mixing tank assembly - 100, tank body - 101, treatment chamber - 102, communication groove - 103, mixing member - 200, outer cylinder - 201, liquid discharge hole - 202, exhaust pipe - 203, exhaust hole - 204, top cover - 205, connection platform - 206, threaded connection pipe - 207, connection cylinder - 208, contact groove - 209, liquid injection assembly - 300, liquid separation ring - 301, liquid injection pipe - 302, external pipeline - 303, liquid collecting assembly - 400, liquid collecting ring - 401, liquid suction channel - 402, liquid discharge pipeline - 403, feeding assembly - 500, feeding platform - 501, feeding groove - 502, rotating chamber - 503, partition plate 1 - 504, discharge cylinder - 505, rotating cylinder - 506, partition plate 2 limiting shaft - 507, elastic rope - 508, film - 509, gravity ball - 510, movable chamber - 511, dividing plate - 512, central column - 513, partition groove - 514, sealing member - 600, sealing capsule - 601, sealing ring - 602. Detailed implementation manners

[0034] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given with reference to the accompanying drawings of the specification.

[0035] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0036] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that excludes other embodiments.

[0037] Furthermore, the present invention will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structures will be enlarged locally not in accordance with the general scale, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0038] Such as Figures 1-6As shown in the figure, the present invention provides an exhaust gas recovery and treatment device, including:

[0039] A mixing tank assembly 100, the mixing tank assembly 100 includes a tank body 101 and a treatment chamber 102, and the treatment chamber 102 is provided inside the tank body 101;

[0040] A mixing member 200, the mixing member 200 includes an outer cylinder 201, liquid discharge holes 202, an exhaust pipe 203 and exhaust holes 204. A plurality of liquid discharge holes 202 are evenly provided inside the outer cylinder 201. The liquid discharge holes 202 are inclined. The opening of the liquid discharge hole 202 at one end close to the exhaust pipe 203 is higher than the opening at the end far from the exhaust pipe 203. The exhaust pipe 203 extends into the tank body 101 from the bottom end and is inserted into the middle position of the liquid discharge hole 202. There is a gap between the exhaust pipe 203 and the outer cylinder 201 without contact. Exhaust holes 204 are provided on the exhaust pipe 203. The exhaust holes 204 are inclined. The part of the exhaust hole 204 close to the edge is higher than the part close to the middle;

[0041] A liquid injection assembly 300, the liquid injection assembly 300 is arranged at the top of the mixing member 200;

[0042] A feeding assembly 500, the feeding assembly 500 is arranged at the top of the mixing tank assembly 100, and the bottom end of the feeding assembly 500 is connected to the mixing member 200.

[0043] The mixing member 200 further includes a top cover 205, a connecting platform 206, a threaded connecting pipe 207 and a connecting cylinder 208. The mixing tank assembly 100 further includes a communication groove 103. The communication groove 103 is provided on the inner top wall of the treatment chamber 102. The threaded connecting pipe 207 passes through the connecting platform 206 and is threadedly connected to the communication groove 103. The bottom end of the threaded connecting pipe 207 is provided with a top cover 205. The upper side of the top cover 205 abuts against the bottom end of the connecting platform 206. The top cover 205 is provided with a plurality of connecting cylinders 208. The middle of the top end of the outer cylinder 201 is fixedly connected to the connecting platform 206. The liquid discharge holes 202 are distributed in the cavity formed by the top cover 205 and the top of the outer cylinder 201. A contact groove 209 is formed by the middle part of the outer cylinder 201 being sunken. The exhaust pipe 203 extends into the contact groove 209;

[0044] The top cover 205 closes the inner wall of the top of the contact groove 209;

[0045] The threaded connecting pipe 207 locks the connection between the connecting platform 206 and the tank body 101, and communicates the feeding assembly 500 and the treatment chamber 102, so that the treatment medicine in the feeding assembly 500 can be put into the inner cavity of the contact groove 209, and then mixed with the water liquid and the exhaust gas.

[0046] The dosing component 500 includes a dosing table 501, a dosing slot 502, a rotating cavity 503, and a discharge cylinder 505. A dosing slot 502 is provided at the top end of the dosing table 501, a rotating cavity 503 is provided in the middle of the dosing table 501, the dosing slot 502 communicates with the rotating cavity 503, a discharge cylinder 505 is provided at the bottom end of the rotating cavity 503. The mixing component 200 further includes a connecting cylinder 208. The discharge cylinder 505 is inserted into the communication groove 103, and two connecting cylinders 208 are provided between the communication groove 103 and the threaded connecting pipe 207;

[0047] Treatment medicine is put into the dosing slot 502, and then divided into multiple portions by the first partition plate 504 and added to the discharge cylinder 505 in sequence.

[0048] The dosing component 500 further includes a first partition plate 504, a rotating cylinder 506, a movable cavity 511, a dividing plate 512, and a central column 513. The rotating cylinder 506 is located in the middle of the rotating cavity 503 and their central axes coincide. The rotating cylinder 506 is a cylinder. The central column 513 is located in the middle of the rotating cylinder 506. The central column 513 and the rotating cylinder 506 are connected by the dividing plate 512. The dividing plate 512 divides the cavity inside the rotating cylinder 506 into several movable cavities 511. A number of first partition plates 504 are evenly arranged on the outer peripheral surface of the rotating cylinder 506. The first partition plates 504 are in close contact with the inner wall of the rotating cavity 503. The rotating cylinder 506 is rotatably connected to the rotating cavity 503;

[0049] The dosing component 500 further includes a dividing groove 514, a gravity ball 510, a second partition plate limiting shaft 507, an elastic rope 508, and a film 509. A number of dividing grooves 514 are provided on the circumferential surface of the dosing component 500. The dividing grooves 514 correspond to the movable cavities 511 one by one. A number of second partition plate limiting shafts 507 are provided on the central column 513. The second partition plate limiting shafts 507 correspond to the movable cavities 511 one by one. Elastic ropes 508 are also provided on the second partition plate limiting shafts 507. 519 are provided on each of the dividing grooves 514. The elastic ropes 508 and the film 509 are respectively connected correspondingly. A gravity ball 510 is slidably connected to the outside of the second partition plate limiting shaft 507;

[0050] When a certain gravity ball 510 reaches the bottom of the rotating cavity 503, it will move down along the second partition plate limiting shaft 507, pressing the film 509 to protrude towards the inside of the rotating cavity 503, squeezing the liquid inside the cavity of the rotating cavity 503, so that the liquid enters the channel in the discharge cylinder 505, and reaches the threaded connecting pipe 207 through the connecting cylinder 208 along the discharge cylinder 505, until it reaches the inside of the top cover 205 and the contact groove 209.

[0051] A seal member 600 is provided at the bottom of the processing chamber 102. The seal member 600 is sleeved on the exhaust pipe 203. The seal member 600 includes a sealing bladder 601 and a sealing ring 602. A plurality of sealing rings 602 are provided inside the sealing bladder 601. The sealing ring 602 is movably connected to the exhaust pipe 203;

[0052] When the liquid squeezes the surface of the sealing bladder 601, it will make the inner side of the sealing ring 602 fit more closely to the outer side of the exhaust pipe 203, thereby making the space between the exhaust pipe 203 and the tank body 101 more sealed.

[0053] The liquid injection assembly 300 includes a liquid distribution ring 301, a liquid injection pipe 302 and an external pipe 303. A liquid injection pipe 302 is provided at the bottom end of the liquid distribution ring 301. The liquid injection pipe 302 is connected to and communicates with the top end of the outer cylinder 201. An external pipe 303 is provided at the top end of the liquid distribution ring 301;

[0054] The liquid distribution ring 301 disperses the liquid into the channel of the outer cylinder 201 through the liquid injection pipe 302, and then injects it into the contact groove 209 through the drain hole 202. The exhaust pipe 203 disperses the waste gas into the contact groove 209 through the exhaust hole 204 to be mixed with the liquid. Part of the liquid reaches above the top cover 205 through the drain hole 202, and then is injected into the inner side of the top cover 205 through the connecting cylinder 208 to be dispersed and mixed with the processing medicine flowing in from the threaded connection pipe 207.

[0055] A liquid collecting assembly 400 is provided on the outer side of the top of the tank body 101. The liquid collecting assembly 400 includes a liquid collecting ring 401, a liquid suction channel 402 and a liquid discharge pipe 403. A liquid suction channel 402 is formed in the inner cavity of the liquid collecting ring 401. The liquid suction channel 402 communicates with the processing chamber 102. A liquid discharge pipe 403 is provided on the outer side of the liquid collecting ring 401;

[0056] The liquid collecting assembly 400 drains the processed water liquid through the liquid suction channel 402;

[0057] The exhaust pipe 203 is connected to an exhaust gas supply pipe, the external pipe 303 is connected to a water supply pipe. The processing medicine is a liquid, and the processing medicine includes a sodium hydroxide solution. A servo motor is provided in the placement table 501. The output end of the servo motor is connected to the central column 513. An exhaust channel is provided at the position of the tank body 101 above the liquid collecting assembly 400.

[0058] The specific implementation method is as follows: Put the processing medicine into the placement groove 502, and then it is divided into multiple portions by the partition plate one 504 and added to the discharge cylinder 505 in sequence;

[0059] When a certain active chamber 511 rotates with the rotating cylinder 506 and reaches the bottom of the rotating chamber 503, the gravity ball 510 in the active chamber 511 will move down along the partition plate two limiting shaft 507, pressing the membrane 509 to protrude towards the inside of the rotating chamber 503, squeezing the liquid in the inner cavity of the rotating chamber 503, causing the liquid to enter the channel in the discharge cylinder 505, and flowing along the discharge cylinder 505 through the connecting cylinder 208 to reach the threaded connecting pipe 207, until it reaches the inside of the top cover 205 and the contact groove 209. The gravity ball 510 located at the top of the rotating chamber 503 is completely immersed in the active chamber 511, and the elastic rope 508 pulls the membrane 509 to recess into the active chamber 511, increasing the space between the corresponding two partition plates one 504 to accommodate the treatment medicine. Even if the aqueous solution enters the rotating chamber 503 through the discharge cylinder 505, the recess of the membrane 509 will also increase the space to accommodate the treatment medicine. The treatment medicine is put into the inner cavity of the contact groove 209 and then mixed with the aqueous solution and the waste gas;

[0060] The liquid distribution ring 301 disperses the liquid into the channel of the outer cylinder 201 through the liquid injection pipe 302, and then injects it into the contact groove 209 through the liquid discharge hole 202. The exhaust pipe 203 disperses the waste gas into the contact groove 209 through the exhaust hole 204 to mix with the sufficient liquid. Part of the liquid reaches above the top cover 205 through the liquid discharge hole 202, and then is injected into the inside of the top cover 205 through the connecting cylinder 208 to be dispersed and mixed with the treatment medicine flowing in from the threaded connecting pipe 207;

[0061] Sulfur dioxide, nitrogen oxides, and volatile organic compounds in the waste gas are absorbed by the aqueous solution, and the acidic substances generated are neutralized by the treatment medicine.

[0062] It should be understood that in the development process of any actual implementation, such as in any engineering or design project, a large number of specific implementation decisions can be made. Such development efforts may be complex and time-consuming, but for those ordinary technical personnel who benefit from this disclosure, without excessive experimentation, the development efforts will be a routine work of design, manufacturing, and production.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An exhaust gas recovery and treatment device, characterized in that: It includes: A mixing tank assembly (100), the mixing tank assembly (100) includes a tank body (101) and a treatment chamber (102), and the treatment chamber (102) is provided inside the tank body (101); A mixing member (200), the mixing member (200) includes an outer cylinder (201), a liquid discharge hole (202), an exhaust pipe (203) and an exhaust hole (204). A plurality of liquid discharge holes (202) are evenly provided inside the outer cylinder (201). The liquid discharge holes (202) are inclined. The opening of the liquid discharge hole (202) at the end close to the exhaust pipe (203) is higher than the opening at the end far from the exhaust pipe (203). The exhaust pipe (203) extends from the bottom end of the tank body (101) and is inserted into the middle position of the liquid discharge hole (202). There is a gap between the exhaust pipe (203) and the outer cylinder (201) without contact. Exhaust holes (204) are provided on the exhaust pipe (203). The exhaust holes (204) are inclined. The part of the exhaust hole (204) close to the edge is higher than the part close to the middle; A liquid injection assembly (300), the liquid injection assembly (300) is arranged at the top of the mixing member (200); A feeding assembly (500), the feeding assembly (500) is arranged at the top of the mixing tank assembly (100), and the bottom end of the feeding assembly (500) is connected to the mixing member (200).

2. The exhaust gas recovery and treatment device according to claim 1, characterized in that: The mixing member (200) further includes a top cover (205), a connecting platform (206), a threaded connecting pipe (207) and a connecting cylinder (208). The mixing tank assembly (100) further includes a communication groove (103). A communication groove (103) is provided on the inner top wall of the treatment chamber (102). The threaded connecting pipe (207) passes through the connecting platform (206) and is threadedly connected to the communication groove (103). A top cover (205) is provided at the bottom end of the threaded connecting pipe (207). The upper side of the top cover (205) abuts against the bottom end of the connecting platform (206). The top cover (205) is provided with a plurality of connecting cylinders (208). The middle of the top end of the outer cylinder (201) is fixedly connected to the connecting platform (206). The liquid discharge holes (202) are distributed in the cavity formed by the top cover (205) and the top of the outer cylinder (201).

3. The exhaust gas recovery and treatment device according to claim 2, characterized in that: The feeding component (500) includes a feeding table (501), a feeding groove (502), a rotating cavity (503) and a discharge cylinder (505). A feeding groove (502) is formed at the top of the feeding table (501), a rotating cavity (503) is formed in the middle of the feeding table (501), the feeding groove (502) is communicated with the rotating cavity (503), a discharge cylinder (505) is arranged at the bottom end of the rotating cavity (503). The mixing component (200) further includes a connecting cylinder (208). The discharge cylinder (505) is inserted into the communication groove (103), and two connecting cylinders (208) are arranged between the communication groove (103) and the threaded connecting pipe (207).

4. An exhaust gas recovery and treatment device according to claim 3, characterized in that: The feeding component (500) further includes a first partition plate (504), a rotating cylinder (506), a movable cavity (511), a dividing plate (512) and a central column (513). The rotating cylinder (506) is located in the middle of the rotating cavity (503), and their central axes coincide. The rotating cylinder (506) is a cylindrical cylinder. The central column (513) is located in the middle of the rotating cylinder (506). The central column (513) and the rotating cylinder (506) are connected by a dividing plate (512). The dividing plate (512) divides the cavity inside the rotating cylinder (506) into several movable cavities (511). A plurality of first partition plates (504) are uniformly arranged on the outer peripheral surface of the rotating cylinder (506), and the first partition plates (504) are in close contact with the inner wall of the rotating cavity (503).

5. An exhaust gas recovery and treatment device according to claim 4, characterized in that: The feeding component (500) further includes a partition groove (514), a gravity ball (510), a limiting shaft for the second partition plate (507), an elastic rope (508) and a film (509). A plurality of partition grooves (514) are formed on the circumferential surface of the feeding component (500), and the partition grooves (514) correspond to the movable cavities (511) one by one. A plurality of limiting shafts for the second partition plate (507) are arranged on the central column (513), and the limiting shafts for the second partition plate (507) correspond to the movable cavities (511) one by one. Elastic ropes (508) are further arranged on the limiting shafts for the second partition plate (507). (519) is arranged on each of the partition grooves (514). The elastic ropes (508) and the film (509) are respectively connected correspondingly. A gravity ball (510) is slidably connected to the outside of the limiting shaft for the second partition plate (507).

6. An exhaust gas recovery and treatment device according to claim 1, characterized in that: A closing component (600) is arranged at the bottom of the treatment cavity (102). The closing component (600) is sleeved on the exhaust pipe (203). The closing component (600) includes a closing capsule (601) and a sealing ring (602). A plurality of sealing rings (602) are arranged on the inner side of the closing capsule (601), and the sealing rings (602) are movably connected to the exhaust pipe (203).

7. An exhaust gas recovery and treatment device according to claim 1, It is characterized in that: The liquid injection assembly (300) includes a liquid distribution ring (301), a liquid injection pipe (302) and an external pipe (303). A liquid injection pipe (302) is arranged at the bottom end of the liquid distribution ring (301). The liquid injection pipe (302) is connected to and communicates with the top end of the outer cylinder (201). An external pipe (303) is arranged at the top end of the liquid distribution ring (301).

8. An exhaust gas recovery and treatment device according to claim 1, It is characterized in that: A liquid collecting assembly (400) is arranged on the outer side of the top of the tank body (101). The liquid collecting assembly (400) includes a liquid collecting ring (401), a liquid suction channel (402) and a liquid discharge pipe (403). A liquid suction channel (402) is arranged in the inner cavity of the liquid collecting ring (401). The liquid suction channel (402) communicates with the treatment cavity (102). A liquid discharge pipe (403) is arranged on the outer side of the liquid collecting ring (401).

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