Exhaust gas treatment device

Abstract

The utility model relates to waste gas treatment device belongs to waste gas treatment technical field, solves the technical problem of the effect of the present treatment liquid treatment gas when waste gas is not good. The waste gas treatment device includes the reaction pipe, adsorbs the sponge and the shower nozzle, and the reaction pipe has the first end of waste gas and the second end of waste gas exhaust, adsorbs the sponge and installs in the reaction pipe, and adsorbs the sponge and divide the reaction pipe into the first chamber close to the first end and the second chamber close to the second end, the cross section area of first chamber gradually reduces from the first end to the second end, and the shower nozzle is installed in the reaction pipe, and the shower nozzle is located in the second chamber. Therefore, the waste gas treatment device adsorbs the sponge and increases the contact area of waste gas and treatment liquid, thereby treating waste gas better.

Description

Technical Field

[0001] This utility model belongs to the field of waste gas treatment technology, and specifically relates to waste gas treatment devices. Background Technology

[0002] Industrial production processes generate waste gas, which often contains harmful gases such as sulfur dioxide and hydrogen sulfide. These waste gases need to be treated to remove the harmful gases.

[0003] Currently, a common method in waste gas treatment technology is to use a treatment liquid to chemically react with the waste gas to remove harmful gases. However, when the waste gas passes through the treatment liquid, it often fails to make sufficient contact with the liquid and thus fails to undergo an effective chemical reaction, resulting in a reduced effectiveness in treating harmful gases. Utility Model Content

[0004] In view of the above problems, this application provides an exhaust gas treatment device to solve the above technical problems.

[0005] This utility model is achieved through the following technical solution: a waste gas treatment device, including a reaction tube, an adsorption sponge, and a nozzle, wherein the reaction tube has a first end for waste gas inlet and a second end for waste gas outlet; the adsorption sponge is installed inside the reaction tube, and the adsorption sponge divides the interior of the reaction tube into a first cavity near the first end and a second cavity near the second end, the cross-sectional area of ​​the first cavity gradually decreasing from the first end to the second end; the nozzle is installed inside the reaction tube, and the nozzle is located in the second cavity.

[0006] Optionally, the absorbent sponge has a protrusion on the side near the first cavity.

[0007] Optionally, it also includes an adsorption tube, which is rotatably installed inside the reaction tube and located in the first cavity. The adsorption tube abuts against the inner wall of the adsorption sponge, and the side of the adsorption tube near the adsorption sponge is provided with an opening for adsorbing the solution.

[0008] Optionally, the protrusion is annular, and the plane on which the protrusion is located is perpendicular to the axial direction of the reaction tube, and the adsorption tube has a groove on the side near the adsorption sponge that matches the protrusion.

[0009] Optionally, it also includes a flange, which is mounted on the reaction tube and located at the first end. The flange is annular, and a groove for receiving the adsorbent is formed between the flange and the inner wall of the reaction tube. The end of the adsorption tube near the first end extends into the groove.

[0010] Optionally, it also includes a plurality of first partitions, which are installed inside the reaction tube and arranged radially along the reaction tube. The first partitions are parallel to the axial direction of the reaction tube, and the reaction tube divides the adsorbed sponge into a plurality of sub-regions.

[0011] Optionally, the system further includes a plurality of second partitions and a plurality of third partitions. The plurality of second partitions are installed inside the reaction tube, with one end of each second partition abutting against the inner wall of the reaction tube and the other end forming a second channel between the second partition and the inner wall of the reaction tube. The second partitions are perpendicular to the axial direction of the reaction tube. The plurality of third partitions are installed inside the reaction tube, with each third partition parallel to the second partitions. The second partitions and the third partitions are spaced apart, and the end of each third partition away from the second channel forms a third channel between the third partition and the inner wall of the reaction tube.

[0012] Optionally, it also includes a filter screen, which is installed at the first end of the reaction tube.

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] The waste gas treatment device provided by this utility model includes a reaction tube, an adsorption sponge, and a nozzle. The reaction tube has a first end for waste gas inlet and a second end for waste gas outlet. The adsorption sponge is installed inside the reaction tube and divides the inside of the reaction tube into a first cavity near the first end and a second cavity near the second end. The cross-sectional area of ​​the first cavity gradually decreases from the first end to the second end. The nozzle is installed inside the reaction tube and is located in the second cavity.

[0015] With the above structure, the waste gas treatment device provided by this utility model first introduces the waste gas into the first end of the reaction tube, and sprays the treatment liquid onto the adsorption sponge. The waste gas enters the reaction tube and moves from the first end to the second end through the adsorption sponge. The waste gas comes into contact with the adsorption sponge, and the treatment liquid adsorbed in the adsorption sponge reacts with the waste gas, thereby removing the harmful gases in the waste gas. Then, it is discharged through the second end and further processed in other steps. Therefore, the adsorption sponge in this waste gas treatment device increases the contact area between the waste gas and the treatment liquid, thereby better treating the waste gas. The projected area of ​​the first chamber in the axial direction of the reaction tube gradually decreases from the first end to the second end, allowing the waste gas to contact the adsorption sponge with a larger area after entering the reaction tube, thus accelerating the treatment of the waste gas. As the waste gas moves from the first end to the second end, the concentration of harmful gases in the waste gas gradually decreases. The treatment liquid moves from the first end to the second end through the nozzle, making the concentration of the treatment liquid higher closer to the second end. This makes it easier for the harmful gases in the waste gas to react with the treatment liquid, reducing the amount of harmful gases in the waste gas and better treating the harmful gases. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the waste gas treatment device provided by this utility model;

[0018] Figure 2 This is another structural schematic diagram of the waste gas treatment device provided by this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the waste gas treatment device provided by this utility model.

[0020] In the picture:

[0021] 1-Reaction tube, 11-First end, 12-Second end, 2-Adsorption sponge, 3-Nozzle, 4-Protrusion, 5-Adsorption tube, 6-Protruding edge, 7-First partition, 8-Second partition, 9-Third partition, 10-Filter screen. Detailed Implementation

[0022] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0023] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] This utility model provides a waste gas treatment device, solving the technical problem of poor performance when using liquid treatment for waste gas. The waste gas treatment device includes a reaction tube 1, an adsorption sponge 2, and a nozzle 3, wherein:

[0027] The reaction tube 1 has a first end 11 and a second end 12, as shown in the figure. Figures 1-3 The waste gas is treated in the reaction tube 1. The waste gas enters from the first end 11 and is discharged from the second end 12 after treatment. Multiple reaction tubes 1 can be set to improve the treatment effect or treat different components in the waste gas.

[0028] The adsorption sponge 2 is installed inside the reaction tube 1, as per [reference]. Figures 1-3 The adsorption sponge 2 is used to adsorb the treated liquid. The adsorption sponge 2 is a structural component with several pores. Capillary force is generated through the internal pore structure of the adsorption sponge 2 to draw the liquid into the pores. The adsorption sponge 2 is made of a hydrophilic structure to facilitate the entry of the treated liquid into the adsorption sponge 2. The exhaust gas passes through the adsorption sponge 2 and reacts with the treated liquid inside the adsorption sponge 2 to reduce harmful gases in the exhaust gas. The large internal surface area of ​​the adsorption sponge 2 allows for a larger contact space between the exhaust gas and the treated liquid, significantly increasing the contact opportunity and reaction time, thereby improving… The pollutant removal rate is achieved by dividing the interior of the reaction tube 1 into a first chamber near the first end 11 and a second chamber near the second end 12. After the exhaust gas enters the first chamber through the first end 11, it passes through the adsorption sponge 2 and enters the second chamber. After reacting with the treatment liquid adsorbed by the adsorption sponge 2, it is discharged through the second end 12. The projected area of ​​the first chamber in the axial direction of the reaction tube 1 gradually decreases from the first end 11 to the second end 12. This allows the area of ​​the adsorption sponge 2 near the first end 11 to be larger, thereby better contacting the exhaust gas and improving the treatment effect of the exhaust gas.

[0029] The nozzle 3 is installed inside the reaction tube 1 and located in the second chamber, that is, the nozzle 3 is located above the adsorption sponge 2, as shown in the reference. Figures 1-2Nozzle 3 is used to spray the treatment liquid, thereby replenishing the treatment liquid to the adsorption sponge 2 in a timely manner, so as to maintain the concentration of the treatment liquid adsorbed by the adsorption sponge 2 so that it can better react with the harmful gases in the exhaust gas. Nozzle 3 can be an atomizing nozzle 3, so that when the exhaust gas passes through the adsorption sponge 2, it can also react with the droplets of treatment liquid sprayed in the second chamber, further improving the treatment effect of the exhaust gas.

[0030] With the above structure, the waste gas treatment device provided by this utility model first introduces the waste gas into the first end 11 of the reaction tube 1, and sprays the treatment liquid onto the adsorption sponge 2 with the nozzle 3. The waste gas enters the reaction tube 1 and moves from the first end 11 to the second end 12 through the adsorption sponge 2. The waste gas comes into contact with the adsorption sponge 2, and the treatment liquid adsorbed in the adsorption sponge 2 reacts with the waste gas, thereby removing the harmful gases in the waste gas. Then, it is discharged through the second end 12 and further processed in other steps. Therefore, the adsorption sponge 2 in this waste gas treatment device increases the contact area between the waste gas and the treatment liquid, thereby better treating the waste gas. The projected area of ​​the first chamber in the axial direction of the reaction tube 1 gradually decreases from the first end 11 to the second end 12, so that the waste gas can contact the adsorption sponge 2 with a larger area after entering the reaction tube 1, thereby accelerating the treatment of the waste gas. The waste gas moves from the first end 11 to the second end 12, so that the concentration of harmful gases in the waste gas gradually decreases. The treatment liquid moves from the first end 11 to the second end 12 through the nozzle 3, so that the concentration of the treatment liquid is higher closer to the second end 12, thereby making it easier for the harmful gases in the waste gas to react with the treatment liquid, reducing the harmful gases in the waste gas, and better treating the harmful gases.

[0031] An optional implementation of this embodiment is as follows: The adsorption sponge 2 has a protrusion 4 on the side near the first cavity. When the waste gas to be treated enters the first cavity, the protrusion 4 can increase the contact area with the waste gas, thereby increasing the probability of the waste gas contacting the treatment liquid in the adsorption sponge 2, so as to better treat the waste gas.

[0032] An optional implementation of this embodiment is as follows: To facilitate the discharge of the treated liquid with reduced concentration, the waste gas treatment device further includes an adsorption tube 5, as shown in the figure. Figures 1-2The adsorption tube 5 is rotatably installed inside the reaction tube 1. The adsorption tube 5 is used to provide suction to dispense the treatment liquid from the reaction tube 1. The adsorption tube 5 is located in the first cavity and abuts against the inner wall of the adsorption sponge 2. The side of the adsorption tube 5 near the adsorption sponge 2 has an opening for adsorbing the solution, so that the treatment liquid adsorbed in the adsorption sponge 2 can be sucked out. As the treatment liquid moves from the first end 11 to the second end 12, it gradually comes into contact with the waste gas. After reacting with the waste gas, the concentration of the solution in the treatment liquid gradually decreases. Therefore, the adsorption tube 5 can discharge the treatment liquid with a lower concentration, reducing the effect of low-concentration treatment liquid on the treatment of waste gas. The rotation of the adsorption tube 5 can make full contact with the side of the adsorption sponge 2 near the first cavity, so as to more fully adsorb the treatment liquid on the adsorption sponge 2. At the same time, since the nozzle 3 near the second end 12 of the reaction tube 1 is spraying the treatment liquid, the treatment liquid in the adsorption sponge 2 gradually increases. When the treatment liquid adsorbed by the adsorption sponge 2 reaches saturation, the adsorption tube 5 can suck out the treatment liquid, reducing the possibility of the treatment liquid dripping directly from the first end 11.

[0033] An optional implementation of this embodiment is as follows: Refer to... Figures 1-2 The protrusion 4 is annular, and the plane on which the protrusion 4 is located is perpendicular to the axial direction of the reaction tube 1. The adsorption tube 5 has a groove on the side near the adsorption sponge 2 that matches the protrusion 4. Since the adsorption tube 5 is rotatably installed in the reaction tube 1, the protrusion 4 can increase the contact area with the exhaust gas, while reducing the restriction of the protrusion 4 on the adsorption tube 5 when the adsorption tube 5 rotates, reducing damage to the protrusion 4, and reducing the obstruction of the adsorption tube 5 by the protrusion 4.

[0034] An optional implementation of this embodiment is as follows: Refer to... Figures 1-3 To reduce the outflow of treatment liquid along the first end 11, the waste gas treatment device also includes a flange 6, which is installed on the reaction tube 1 and located at the first end 11. The flange 6 is annular, and a groove for receiving the adsorbent liquid is formed between the flange 6 and the inner wall of the reaction tube 1. This groove receives the treatment liquid flowing down the inner wall of the reaction tube 1 or along the adsorption sponge 2, reducing the discharge of treatment liquid from the first end 11 outside the reaction tube 1. The end of the adsorption tube 5 near the first end 11 extends into the groove. When the treatment liquid enters the groove, the adsorption tube 5 can suck out the treatment liquid, thereby reducing the accumulation of treatment liquid in the groove and causing the treatment liquid to overflow. The rotation of the adsorption tube 5 can better suck out the treatment liquid in the groove. At the same time, the groove can also support the adsorption tube 5 to better protect the adsorption tube 5.

[0035] An optional implementation of this embodiment is as follows: it further includes a plurality of first partitions 7, as shown in the figure. Figures 1-3Multiple first partitions 7 are installed inside the reaction tube 1 and arranged radially along the reaction tube 1. The first partitions 7 are parallel to the axial direction of the reaction tube 1. The reaction tube 1 divides the adsorption sponge 2 into multiple sub-regions. After the exhaust gas enters the adsorption sponge 2 through the first end 11, it moves from the first end 11 to the second end 12 along the sub-regions.

[0036] An optional implementation of this embodiment is as follows: it further includes a plurality of second partitions 8 and a plurality of third partitions 9, as shown in the figure. Figures 1-3 Multiple second baffles 8 are installed inside the reaction tube 1. One end of the second baffle 8 abuts against the inner wall of the reaction tube 1, and the other end forms a second channel between the second baffle 8 and the inner wall of the reaction tube 1. The second baffle 8 is perpendicular to the axial direction of the reaction tube 1. Multiple third baffles 9 are installed inside the reaction tube 1. The third baffles 9 are parallel to the second baffles 8. The second baffles 8 and the third baffles 9 are spaced apart. The end of the third baffle 9 away from the second channel forms a third channel between the third baffle 9 and the inner wall of the reaction tube 1. In this way, the gas entering the sub-region moves along the area formed by the second baffles 8 and the third baffles 9 through the second baffles 8 and the third baffles 9, which prolongs the movement distance of the exhaust gas. At the same time, the exhaust gas comes into contact with the treatment liquid on the adsorption sponge 2, thereby increasing the contact time between the exhaust gas and the treatment liquid on the adsorption sponge 2, and thus treating the exhaust gas better.

[0037] An optional implementation of this embodiment is as follows: To reduce the amount of solids in the exhaust gas entering the reaction tube 1, the exhaust gas treatment device further includes a filter screen 10, as shown in the figure. Figures 1-2 The filter screen 10 is installed at the first end 11 of the reaction tube 1. When the exhaust gas enters the reaction tube 1, it first passes through the filter screen 10 for filtration to reduce the solids in the exhaust gas, thereby reducing the blockage of the adsorption sponge 2 by the solids in the exhaust gas, and thus extending the service life of the adsorption sponge 2.

[0038] In summary, when treating waste gas, the waste gas treatment device first introduces the waste gas into the first end 11 of the reaction tube 1. The filter screen 10 performs preliminary filtration of the waste gas. The nozzle 3 sprays the treatment liquid onto the adsorption sponge 2. The waste gas enters the reaction tube 1 and moves back and forth through the adsorption sponge 2 into the channel formed between the first partition 7, the second partition 8, and the third partition 9 from the first end 11. The waste gas comes into contact with the adsorption sponge 2, and the treatment liquid adsorbed in the adsorption sponge 2 reacts with the waste gas, thereby removing harmful gases from the waste gas. At the same time, the adsorption tube 5 rotates to draw out the treatment liquid adsorbed in the adsorption sponge 2. The convex edge 6 receives the treatment liquid flowing down the inner wall of the reaction tube 1 or down the adsorption sponge 2. The treated waste gas is discharged through the second end 12 and then processed in other steps. Therefore, the adsorption sponge 2 in this waste gas treatment device increases the contact area between the waste gas and the treatment liquid, thereby better treating the waste gas. The projected area of ​​the first chamber in the axial direction of the reaction tube 1 gradually decreases from the first end 11 to the second end 12, so that the waste gas can contact the adsorption sponge 2 with a larger area after entering the reaction tube 1. The protrusion 4 increases the contact area with the waste gas, thereby accelerating the treatment of the waste gas. The waste gas moves from the first end 11 to the second end 12, so that the concentration of harmful gases in the waste gas gradually decreases. The treatment liquid moves from the first end 11 to the second end 12 through the nozzle 3, so that the concentration of the treatment liquid is higher closer to the second end 12, thereby making it easier for the harmful gases in the waste gas to react with the treatment liquid, reducing the harmful gases in the waste gas, and better treating the harmful gases.

[0039] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit this application. For those skilled in the art, this application can have various modifications and variations. 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 waste gas treatment device, characterized in that, include: The reaction tube has a first end for waste gas inlet and a second end for waste gas outlet; An absorbent sponge is installed inside the reaction tube, which divides the interior of the reaction tube into a first cavity near the first end and a second cavity near the second end. The cross-sectional area of ​​the first cavity gradually decreases from the first end to the second end. The nozzle is installed inside the reaction tube, and the nozzle is located in the second cavity.

2. The waste gas treatment device according to claim 1, characterized in that, The absorbent sponge has a protrusion on the side near the first cavity.

3. The waste gas treatment device according to claim 2, characterized in that, Also includes: An adsorption tube is rotatably installed inside the reaction tube and located in the first cavity. The adsorption tube abuts against the inner wall of the adsorption sponge, and the side of the adsorption tube near the adsorption sponge has an opening for adsorbing the solution.

4. The waste gas treatment device according to claim 3, characterized in that, The protrusion is annular, and the plane on which the protrusion is located is perpendicular to the axial direction of the reaction tube. The adsorption tube has a groove on the side near the adsorption sponge that matches the protrusion.

5. The waste gas treatment device according to claim 3, characterized in that, Also includes: A flange is installed on the reaction tube and located at the first end. The flange is annular and forms a groove between the flange and the inner wall of the reaction tube for receiving the adsorbent liquid. The end of the adsorption tube near the first end extends into the groove.

6. The waste gas treatment device according to claim 1, characterized in that, Also includes: Multiple first partitions are installed inside the reaction tube and arranged radially along the reaction tube. The first partitions are parallel to the axial direction of the reaction tube, and the reaction tube divides the adsorbed sponge into multiple sub-regions.

7. The waste gas treatment device according to claim 6, characterized in that, Also includes: Multiple second baffles are installed inside the reaction tube. One end of the second baffle abuts against the inner wall of the reaction tube, and the other end forms a second channel with the inner wall of the reaction tube. The second baffle is perpendicular to the axial direction of the reaction tube. Multiple third partitions are installed inside the reaction tube. The third partitions are parallel to the second partitions. The second partitions and the third partitions are spaced apart. The end of the third partition away from the second channel forms a third channel with the inner wall of the reaction tube.

8. The waste gas treatment device according to claim 1, characterized in that, Also includes: A filter screen is installed at the first end of the reaction tube.

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