Tail gas treatment device for low-mercury catalyst production

Abstract

The utility model relates to the technical field of tail gas treatment, and discloses a tail gas treatment device for low-mercury catalyst production. The tail gas treatment device for low-mercury catalyst production comprises a limiting pipe, a partition plate is fixedly installed in the limiting pipe, a bubble disc is fixedly installed above the partition plate, a bent pipe is installed on the left side of the limiting pipe in a penetrating mode, a metal net is fixedly installed in the limiting pipe, and tail gas can be discharged through small holes in the surface of the bubble disc. The air bubbles move upwards in the limiting pipe in the form of air bubbles, the metal nets are vertically installed in all the cavities of the limiting pipe at equal intervals, the air bubbles can be divided by the metal nets when passing through the metal nets, and therefore the air bubbles are more dense, and the contact area between tail gas and treatment liquid is increased; the tail gas can be exhausted from the exhaust pipe at the top end of the limiting pipe after passing through the three bubble plates, so that the volume of bubbles can be smaller, the contact area between the tail gas and the treatment liquid is increased, and the treatment effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of exhaust gas treatment technology, specifically to an exhaust gas treatment device for the production of low-mercury catalysts. Background Technology

[0002] The production of low-mercury catalysts generates a large amount of harmful exhaust gas. In order to protect the environment, the exhaust gas needs to be treated before it can be discharged. Currently, the exhaust gas treatment usually adopts the spray method to purify the exhaust gas.

[0003] The existing Chinese utility model patent with publication number CN211159131U discloses a tail gas treatment device for low-mercury catalyst production, including a tail gas purification mechanism and a tail gas filtration mechanism. The tail gas purification mechanism includes a first treatment box, a second treatment box, a third treatment box, a first connecting pipe, a second connecting pipe, and a third connecting pipe. One end of the first connecting pipe is connected to the tail gas filtration mechanism, and the other end of the first connecting pipe passes through the top of the first treatment box and extends into the interior of the first treatment box. One end of the second connecting pipe is connected to the top of the first treatment box, and the other end of the second connecting pipe passes through the top of the second treatment box and extends into the interior of the second treatment box. One end of the third connecting pipe is connected to the top of the second treatment box, and the other end of the third connecting pipe passes through the top of the third treatment box and extends into the interior of the third treatment box. Compared with the prior art, this utility model can thoroughly clean the tail gas.

[0004] Existing exhaust gas treatment devices generally purify exhaust gas by introducing it into a treatment liquid, allowing the exhaust gas to react with the liquid. However, due to the volume of air bubbles, this method cannot ensure complete contact between the exhaust gas and the treatment liquid, resulting in incomplete reaction and affecting the treatment effect. Currently, exhaust gas is typically introduced into the treatment liquid through a pipeline structure. The portion of the pipeline structure inside the treatment liquid has small-diameter exhaust holes. Solids entrained in the exhaust gas may clog the exhaust holes of the pipeline structure, affecting the exhaust gas discharge. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a tail gas treatment device for low-mercury catalyst production, which has advantages such as avoiding blockage of pipeline exhaust holes and improving treatment efficiency, thus solving the aforementioned technical problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a tail gas treatment device for low-mercury catalyst production, comprising: a limiting tube, a partition fixedly installed inside the limiting tube, an air bubble plate fixedly installed above the partition, a bent pipe inserted through the left side of the limiting tube, a metal mesh fixedly installed inside the limiting tube, a water inlet pipe inserted through the right side of the limiting tube, a top cover fixedly installed at the top of the limiting tube, an exhaust pipe inserted through the center of the top cover, an air pump fixedly installed at the air inlet end of the air bubble plate, a support frame fixedly installed outside the air pump, a filter element inserted through the air inlet end of the air pump, a fixing pipe movably installed above the filter element, a bolt inserted through the bottom of the fixing pipe, and a nut movably installed at the bottom end of the bolt; the limiting tube can restrict the tail gas from passing through the treatment liquid.

[0009] As a preferred embodiment of this utility model, the partition is fixedly installed at one-third and two-thirds of the limiting tube, and the partition divides the cavity of the limiting tube into three chambers of equal volume. The bubble disc is fixed at the bottom of each chamber of the limiting tube. The partition can divide the inside of the limiting tube into three cavities of equal volume.

[0010] As a preferred technical solution of this utility model, one end of the bent tube is fixedly connected to the air inlet end of the bubble disc, and the other end passes through the limiting tube and communicates with the cavity of the limiting tube. The metal mesh is vertically and equidistantly installed inside each cavity of the limiting tube. The bent tube facilitates communication between the cavity and the lower-level bubble disc.

[0011] As a preferred embodiment of this utility model, the bubble disc is connected to the lower cavity of the limiting tube through a bent tube, and the surface of the bubble disc is provided with an open structure; the bubble disc can generate dense bubbles in the exhaust gas.

[0012] As a preferred technical solution of this utility model, the water inlet pipe is vertically and equidistantly installed on the right side of the limiting pipe, and the bottom end of the water inlet pipe is lower than the bottom end of the corresponding bend. The exhaust pipe vertically penetrates the top cover and communicates with the cavity at the top of the limiting pipe. The top cover can seal the top of the limiting pipe.

[0013] As a preferred embodiment of this utility model, the air pump is connected to the air inlet end of the bubble disc at the bottom of the limiting tube, the filter element is slidably connected to the air inlet end of the air pump, the top outer side of the filter element is provided with an annular protrusion structure, and the upper and lower ends of the fixing tube are provided with flange structures; the air pump can deliver the exhaust gas to the inside of the bubble disc.

[0014] As a preferred technical solution of this utility model, the bolt is installed in an "X" shape at the bottom end of the fixing tube with the center of the fixing tube as the reference. The bolt passes through the flange structure at the bottom end of the fixing tube, the protruding structure at the top of the filter element, and the flange structure at the top of the air pump and is connected to the nut. The bolt and nut facilitate the connection between the fixing tube and the air inlet end of the air pump.

[0015] Compared with the prior art, this utility model provides a tail gas treatment device for low-mercury catalyst production, which has the following beneficial effects:

[0016] 1. This utility model utilizes a bubble disc design. A partition is fixedly installed at one-third and two-thirds of the length of the limiting tube, dividing the tube's cavity into three equal chambers. A bubble disc is fixed to the bottom of each chamber. An air pump is connected to the air inlet of the bubble disc at the bottom of the limiting tube. When the air pump delivers exhaust gas to the bubble disc at the bottom of the limiting tube, the exhaust gas is discharged through small holes on the surface of the bubble disc and moves upwards as bubbles inside the limiting tube. Because the metal mesh is vertically and equidistantly installed at each end of the limiting tube... Inside the chamber, the bubbles are broken up by the metal mesh as they pass through, making them denser and increasing the contact area between the exhaust gas and the treatment liquid. As the bubbles move upward, they react with the treatment liquid. When the bubbles reach the bottom of the baffle, they enter the lower bubble plate through a bend and move upward again as bubbles. After the exhaust gas passes through three bubble plates, it is discharged from the exhaust pipe at the top of the limiting tube. This method makes the bubbles smaller, thereby increasing the contact area between the exhaust gas and the treatment liquid and improving the treatment effect.

[0017] 2. This utility model, through the setting of the filter element, is inserted and installed at the air inlet end of the air pump, forming a sliding connection between the filter element and the air pump inlet end. The outer side of the top of the filter element is provided with an annular protrusion structure. The upper and lower ends of the fixing tube are provided with flange structures. The bolt is installed in an "X" shape at the bottom end of the fixing tube with the center of the fixing tube as the reference. The bolt passes through the flange structure at the bottom end of the fixing tube, the protrusion structure at the top of the filter element, and the flange structure at the top of the air pump, and is connected to the nut, thereby clamping the filter element between the fixing tube and the air pump to restrict the position of the filter element. This method can capture solid particles entrained in the exhaust gas through the filter element before the exhaust gas enters the air pump, so as to avoid solid particles clogging the air pores on the surface of the bubble disc and affecting the exhaust gas entering the limiting tube. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the limiting tube of this utility model;

[0020] Figure 3This is a schematic diagram of the connection structure between the air pump and the bubble plate of this utility model;

[0021] Figure 4 This is a schematic diagram of the filter element installation structure of this utility model;

[0022] The components are: 1. Limiting tube; 11. Partition plate; 12. Bubble tray; 13. Bend; 14. Metal mesh; 15. Water inlet pipe; 16. Top cover; 17. Exhaust pipe; 18. Air pump; 19. Support frame; 110. Filter element; 111. Fixing pipe; 112. Bolt; 113. Nut. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please see Figure 1 - Figure 4In this embodiment, a tail gas treatment device for low-mercury catalyst production includes: a limiting tube 1, a partition 11 fixedly installed inside the limiting tube 1, a bubble disc 12 fixedly installed above the partition 11, a bent pipe 13 inserted through the left side of the limiting tube 1, a metal mesh 14 fixedly installed inside the limiting tube 1, a water inlet pipe 15 inserted through the right side of the limiting tube 1, a top cover 16 fixedly installed at the top of the limiting tube 1, an exhaust pipe 17 inserted through the center of the top cover 16, an air pump 18 fixedly installed at the air inlet end of the bubble disc 12, a support frame 19 fixedly installed on the outside of the air pump 18, a filter element 110 inserted through the air inlet end of the air pump 18, a fixing pipe 111 movably installed above the filter element 110, a bolt 112 inserted through the bottom of the fixing pipe 111, and a nut 113 movably installed at the bottom end of the bolt 112.

[0027] A partition 11 is fixedly installed at one-third and two-thirds of the length of the limiting tube 1, dividing the cavity of the limiting tube 1 into three equal-volume chambers. A bubble disc 12 is fixed to the bottom of each chamber of the limiting tube 1. One end of a bent pipe 13 is fixedly connected to the air inlet of the bubble disc 12, and the other end passes through the limiting tube 1 and communicates with its cavity. A metal mesh 14 is vertically and equidistantly installed inside each chamber of the limiting tube 1. The bubble disc 12 communicates with the lower cavity of the limiting tube 1 through the bent pipe 13. The surface of the bubble disc 12 has an open structure. A water inlet pipe 15 is vertically and equidistantly installed on the right side of the limiting tube 1, with the bottom end of the water inlet pipe 15 positioned... Below the lower end of the corresponding bend 13, the exhaust pipe 17 vertically penetrates the top cover 16 and communicates with the top cavity of the limiting pipe 1. The air pump 18 is connected to the air inlet end of the bubble disc 12 at the bottom of the limiting pipe 1. The filter element 110 and the air inlet end of the air pump 18 form a sliding connection. The outer side of the top of the filter element 110 is provided with an annular protrusion structure. The upper and lower ends of the fixing pipe 111 are provided with flange structures. The bolt 112 is installed in an "X" shape at the bottom end of the fixing pipe 111 with the center of the fixing pipe 111 as the reference. The bolt 112 penetrates the flange structure at the bottom end of the fixing pipe 111, the protrusion structure at the top of the filter element 110, and the flange structure at the top of the air pump 18 and is connected to the nut 113.

[0028] Specifically, the limiting tube 1 restricts the exhaust gas from passing through the treatment liquid, the baffle 11 divides the inside of the limiting tube 1 into three equal-volume cavities, the bubble plate 12 generates dense bubbles in the exhaust gas, the bent pipe 13 facilitates communication between the cavity and the lower-level bubble plate 12, the exhaust gas at the top of the cavity can enter the lower-level bubble plate 12 through the bent pipe 13, the metal mesh 14 can divide the bubbles as they move upwards, the top cover 16 can seal the top of the limiting tube 1, the exhaust pipe 17 facilitates the exhaust gas discharge, the air pump 18 can deliver the exhaust gas into the bubble plate 12, the support frame 19 can support the air pump 18, the filter element 110 can intercept solid particles entrained in the exhaust gas, the fixing pipe 111 restricts the position of the filter element 110, and the bolt 112 and nut 113 facilitate the connection between the fixing pipe 111 and the air inlet of the air pump 18.

[0029] In use, the partition 11 is fixedly installed at one-third and two-thirds of the length of the limiting tube 1. The partition 11 divides the cavity of the limiting tube 1 into three equal-sized chambers. The bubble disc 12 is fixed to the bottom of each chamber of the limiting tube 1. The air pump 18 is connected to the air inlet of the bubble disc 12 at the bottom of the limiting tube 1. When the air pump 18 delivers exhaust gas to the bubble disc 12 at the bottom of the limiting tube 1, the exhaust gas will be discharged through the small holes on the surface of the bubble disc 12, forming bubbles inside the limiting tube 1. As the air bubbles move upwards, the metal mesh 14 is vertically and equidistantly installed inside each chamber of the limiting tube 1. When the bubbles pass through the metal mesh 14, they are divided, making the bubbles denser and increasing the contact area between the exhaust gas and the treatment liquid. During the upward movement, the bubbles react with the treatment liquid. When the bubbles reach below the baffle 11, they enter the lower-level bubble plate 12 through the bend 13 and move upwards again as bubbles. After passing through the three bubble plates 12, the exhaust gas is discharged from the exhaust pipe 17 at the top of the limiting tube 1. This method reduces the bubble volume, increasing the contact area between the exhaust gas and the treatment liquid, thus improving the treatment effect. The filter element 110 is inserted into the air inlet of the air pump 18, forming a sliding connection. The top outer side of the filter element 110 has an annular protrusion structure. Flange structures are provided at both the upper and lower ends of the fixing tube 111. Bolts 112 are installed in an "X" shape on the fixing tube 111 with the center as the reference. At the bottom of 1, bolt 112 passes through the flange structure at the bottom of the fixed pipe 111, the protruding structure at the top of the filter element 110, and the flange structure at the top of the air pump 18 and connects with nut 113, thereby clamping the filter element 110 between the fixed pipe 111 and the air pump 18 to limit the position of the filter element 110. This method can capture solid particles entrained in the exhaust gas through the filter element 110 before the exhaust gas enters the air pump 18, so as to avoid solid particles clogging the air pores on the surface of the bubble disc 12 and affecting the exhaust gas entering the interior of the limiting pipe 1.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tail gas treatment device for low-mercury catalyst production, characterized in that, include: A limiting tube (1) is provided, with a partition (11) fixedly installed inside the limiting tube (1). An air bubble tray (12) is fixedly installed above the partition (11). A bent pipe (13) is inserted through the left side of the limiting tube (1). A metal mesh (14) is fixedly installed inside the limiting tube (1). A water inlet pipe (15) is inserted through the right side of the limiting tube (1). A top cover (16) is fixedly installed at the top of the limiting tube (1). The center of the top cover (16) is inserted through... An exhaust pipe (17) is installed. An air pump (18) is fixedly installed at the air inlet end of the bubble disc (12). A support frame (19) is fixedly installed on the outside of the air pump (18). A filter element (110) is inserted through the air inlet end of the air pump (18). A fixing pipe (111) is movably installed above the filter element (110). A bolt (112) is inserted through the bottom of the fixing pipe (111). A nut (113) is movably installed at the bottom end of the bolt (112).

2. The tail gas treatment device for low-mercury catalyst production according to claim 1, characterized in that: The partition (11) is fixedly installed at one-third and two-thirds of the limiting tube (1). The partition (11) divides the cavity of the limiting tube (1) into three chambers of equal volume. The bubble plate (12) is fixed at the bottom of each chamber of the limiting tube (1).

3. The tail gas treatment device for low-mercury catalyst production according to claim 1, characterized in that: One end of the bent tube (13) is fixedly connected to the air inlet end of the bubble plate (12), and the other end passes through the limiting tube (1) and communicates with the cavity of the limiting tube (1). The metal mesh (14) is vertically and equidistantly installed inside each cavity of the limiting tube (1).

4. The tail gas treatment device for low-mercury catalyst production according to claim 1, characterized in that: The bubble disc (12) is connected to the lower cavity of the limiting tube (1) through the bent tube (13), and the surface of the bubble disc (12) is provided with an open structure.

5. The tail gas treatment device for low-mercury catalyst production according to claim 1, characterized in that: The water inlet pipe (15) is vertically and equidistantly installed on the right side of the limiting pipe (1), and the bottom of the water inlet pipe (15) is lower than the bottom of the corresponding bend pipe (13). The exhaust pipe (17) vertically penetrates the top cover (16) and communicates with the cavity at the top of the limiting pipe (1).

6. The tail gas treatment device for low-mercury catalyst production according to claim 1, characterized in that: The air pump (18) is connected to the air inlet end of the bubble disc (12) at the bottom of the limiting tube (1), the filter element (110) is slidably connected to the air inlet end of the air pump (18), the top outer side of the filter element (110) is provided with an annular protrusion structure, and the upper and lower ends of the fixing tube (111) are provided with flange structures.

7. The tail gas treatment device for low-mercury catalyst production according to claim 1, characterized in that: The bolt (112) is installed in an "X" shape at the bottom end of the fixed tube (111) with the center of the fixed tube (111) as the reference. The bolt (112) passes through the flange structure at the bottom end of the fixed tube (111), the protruding structure at the top end of the filter element (110), and the flange structure at the top end of the air pump (18) and is connected to the nut (113).

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