A gas recovery device for the preparation of industrial sulfuric acid

Abstract

This utility model relates to the technical field of gas recovery equipment and discloses a gas recovery device for preparing industrial sulfuric acid, comprising: a tower body with an outlet pipe at its upper end; a ring frame disposed inside the upper end of the tower body, with a first ring shell and a second ring shell rotatably mounted inside the ring frame, the first ring shell being disposed above the second ring shell, and both the first and second ring shells being filled with packing; a drive motor disposed on one side of the lower end of the second ring shell, with a drive bevel gear installed at the output end of the drive motor, a drive inner rod fixedly disposed at the lower end of the first ring shell, and a first transmission bevel gear disposed outside the lower end of the drive inner rod. This utility model, by setting a double layer of packing and rotating it in opposite directions, causes the waste gas to be subjected to shear forces and turbulence in different directions when passing through the packing layers, enhancing the gas-liquid contact and mixing effect, and improving the mass transfer efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of gas recovery equipment, specifically a gas recovery device for preparing industrial sulfuric acid. Background Technology

[0002] The production of industrial sulfuric acid begins with the combustion of pyrite to obtain sulfur dioxide, which is then catalytically oxidized to sulfur trioxide. Finally, sulfur trioxide is used to produce sulfuric acid. This process generates a significant amount of waste gas containing sulfur dioxide, sulfur trioxide, carbon dioxide, and fine particulate matter. Currently, the primary method for treating this waste gas is through a scrubbing tower, which dissolves recyclable gases and allows for their recovery and reuse.

[0003] In conventional spray towers, the spray liquid is evenly sprayed onto the packing layer through nozzles. However, when the waste gas is unevenly distributed in the packing layer, it will lead to insufficient gas-liquid contact in some areas, affecting the mass transfer efficiency. To address this, a gas recovery device for preparing industrial sulfuric acid is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a gas recovery device for the preparation of industrial sulfuric acid, thereby solving the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a gas recovery device for preparing industrial sulfuric acid, comprising:

[0008] The tower body has an air outlet pipe at its upper end and an air inlet pipe on one side of its exterior.

[0009] A ring frame is installed inside the upper part of the tower body. A first ring shell and a second ring shell are rotatably installed inside the ring frame. The first ring shell is located above the second ring shell. Both the first ring shell and the second ring shell are filled with packing material.

[0010] A drive motor is located on one side of the lower end of the second annular shell and is fixedly connected to the tower body via a side frame. A drive bevel gear is installed at the output end of the drive motor. A drive inner rod is fixedly installed at the lower end of the first annular shell. A first transmission bevel gear is installed outside the lower end of the drive inner rod and meshes with the drive bevel gear. A drive outer tube is fixedly installed at the lower end of the second annular shell outside the drive inner rod. A second transmission bevel gear is fixedly installed outside the drive outer tube and meshes with the drive bevel gear. The first and second transmission bevel gears are rotatably connected to the side frame.

[0011] The spray pipe is located on one side of the upper end of the air inlet pipe inside the tower.

[0012] Preferably, the air inlet pipe is fixedly connected to the tower body, and the air outlet pipe is fixedly connected to the tower body.

[0013] Preferably, a circulating water tank is provided on one side of the lower outer end of the tower body, and the circulating water tank is fixedly connected to the tower body, and a circulating water pump is provided at the upper end of the circulating water tank.

[0014] Preferably, the output end of the circulating water pump is fixedly connected to the spray pipe, and the spray pipe is fixedly connected to the tower body. The circulating water pump is used to spray the solution through the spray pipe to mix it with the waste gas generated during the preparation of industrial sulfuric acid.

[0015] Preferably, a fan blade is installed at the lower end of the drive inner rod, and the fan blade is fixedly connected to the drive inner rod. The rotation of the fan blade generates airflow, thereby causing the exhaust gas to rise rapidly.

[0016] Preferably, a waste discharge pipe is fixedly installed on one side of the lower end of the tower body, and a valve is installed on the outside of the waste discharge pipe to control the waste discharge pipe to discharge waste.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a gas recovery device for the preparation of industrial sulfuric acid, which has the following beneficial effects:

[0019] This invention drives the first transmission bevel gear and the second transmission bevel gear to rotate the first ring shell and the second ring shell in opposite directions, thereby causing the packing to rotate in opposite directions. When the exhaust gas passes through the packing layer, it is subjected to shear force and turbulence in different directions, which enhances the gas-liquid contact and mixing effect and improves the mass transfer efficiency.

[0020] Rotation of the packing can reduce the deposition and scaling of particulate matter in the exhaust gas on the surface of the packing, reducing the risk of packing blockage. At the same time, the rotating packing can also promote the shedding and discharge of deposited particulate matter, further keeping the packing clean and unobstructed.

[0021] Due to the enhanced gas-liquid contact and mixing effect, the two-layer rotating packed spray tower can achieve higher mass transfer efficiency and processing capacity in a smaller space, thereby solving the problems mentioned in the background technology. Attached Figure Description

[0022] Figure 1 This is a cross-sectional view of the tower structure of this utility model;

[0023] Figure 2 This is a perspective view of the overall structure of this utility model;

[0024] Figure 3 This is a three-dimensional view of the driving structure of this utility model.

[0025] In the diagram: 1. Tower body; 2. Air outlet pipe; 3. Air inlet pipe; 4. Waste discharge pipe; 5. Valve; 6. Circulating water tank; 7. Circulating water pump; 8. Side frame; 9. Drive motor; 10. Drive bevel gear; 11. Drive inner rod; 12. First transmission bevel gear; 13. Drive outer pipe; 14. Second transmission bevel gear; 15. Fan blade; 16. Ring frame; 17. First ring shell; 18. Second ring shell; 19. Packing; 20. Spray pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This utility model provides a technical solution: a gas recovery device for preparing industrial sulfuric acid. Please refer to [link / reference]. Figure 1 , Figure 2 and Figure 3 ,include:

[0028] Tower body 1, with an air outlet pipe 2 at the upper end of tower body 1 and an air inlet pipe 3 on the outer side of tower body 1;

[0029] Ring frame 16 is located at the upper end of the inside of tower body 1. A first ring shell 17 and a second ring shell 18 are rotatably installed inside the ring frame 16. The first ring shell 17 is located at the upper end of the second ring shell 18. Both the first ring shell 17 and the second ring shell 18 are filled with packing 19.

[0030] A drive motor 9 is located on one side of the lower end of the second annular shell 18, and the drive motor 9 is fixedly connected to the tower body 1 through the side frame 8. A drive bevel gear 10 is installed at the output end of the drive motor 9. A drive inner rod 11 is fixedly installed at the lower end of the first annular shell 17. A first transmission bevel gear 12 is installed outside the lower end of the drive inner rod 11, and the first transmission bevel gear 12 is meshed with the drive bevel gear 10. A drive outer tube 13 is fixedly installed at the lower end of the second annular shell 18 outside the drive inner rod 11. A second transmission bevel gear 14 is fixedly installed outside the drive outer tube 13, and the second transmission bevel gear 14 is meshed with the drive bevel gear 10. The first transmission bevel gear 12 and the second transmission bevel gear 14 are rotatably connected to the side frame 8.

[0031] Spray pipe 20 is installed on one side of the upper end of air inlet pipe 3 inside tower body 1.

[0032] Please see Figure 1 and Figure 2 The air inlet pipe 3 is fixedly connected to the tower body 1, and the air outlet pipe 2 is fixedly connected to the tower body 1.

[0033] Please see Figure 1 and Figure 2 A circulating water tank 6 is provided on one side of the lower outer end of the tower body 1, and the circulating water tank 6 is fixedly connected to the tower body 1. A circulating water pump 7 is provided on the upper end of the circulating water tank 6.

[0034] Please see Figure 1 and Figure 2 The output end of the circulating water pump 7 is fixedly connected to the spray pipe 20, and the spray pipe 20 is fixedly connected to the tower body 1. The circulating water pump 7 is used to spray the solution through the spray pipe 20 to mix it with the waste gas generated during the preparation of industrial sulfuric acid.

[0035] Please see Figure 1 A fan blade 15 is installed at the lower end of the drive inner rod 11, and the fan blade 15 is fixedly connected to the drive inner rod 11. The rotation of the fan blade 15 generates airflow, thereby causing the exhaust gas to rise rapidly.

[0036] Please see Figure 1 and Figure 2 A waste discharge pipe 4 is fixedly installed on one side of the lower end of the tower body 1. A valve 5 is installed on the outside of the waste discharge pipe 4. The valve 5 is used to control the waste discharge pipe 4 to discharge waste.

[0037] This scheme involves connecting the air inlet pipe 3 to the gas outlet for preparing industrial sulfuric acid, starting the circulating water pump 7 to spray through the spray pipe 20, starting the drive motor 9 to make the drive bevel gear 10 rotate, and the first transmission bevel gear 12 and the second transmission bevel gear 14 rotate in opposite directions under the drive of the drive bevel gear 10, thereby causing the first ring shell 17 and the second ring shell 18 to rotate in opposite directions carrying the packing 19. At the same time, the drive inner rod 11 drives the fan blade 15 to rotate to generate an upward airflow, increasing the contact speed between the air and the packing 19.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] 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 gas recovery device for preparing industrial sulfuric acid, characterized in that, include: The tower body (1) is provided with an air outlet pipe (2) at its upper end and an air inlet pipe (3) on one side of its exterior. A ring frame (16) is set inside the upper part of the tower body (1). A first ring shell (17) and a second ring shell (18) are rotatably installed inside the ring frame (16). The first ring shell (17) is set at the upper part of the second ring shell (18). The first ring shell (17) and the second ring shell (18) are both filled with packing (19). A drive motor (9) is located on one side of the lower end of the second ring shell (18), and the drive motor (9) is fixedly connected to the tower body (1) through the side frame (8). The output end of the drive motor (9) is equipped with a drive bevel gear (10). The lower end of the first ring shell (17) is fixedly equipped with a drive inner rod (11). The lower end of the drive inner rod (11) is equipped with a first transmission bevel gear (12), and the first transmission bevel gear (12) meshes with the drive bevel gear (10). The lower end of the second ring shell (18) is located outside the drive inner rod (11) and is fixedly equipped with a drive outer tube (13). The drive outer tube (13) is fixedly equipped with a second transmission bevel gear (14), and the second transmission bevel gear (14) meshes with the drive bevel gear (10). The first transmission bevel gear (12) and the second transmission bevel gear (14) are rotatably connected to the side frame (8). The spray pipe (20) is located on one side of the upper end of the air inlet pipe (3) inside the tower body (1).

2. The gas recovery equipment for preparing industrial sulfuric acid according to claim 1, characterized in that: The air inlet pipe (3) is fixedly connected to the tower body (1), and the air outlet pipe (2) is fixedly connected to the tower body (1).

3. The gas recovery equipment for preparing industrial sulfuric acid according to claim 1, characterized in that: A circulating water tank (6) is provided on one side of the lower outer end of the tower body (1), and the circulating water tank (6) is fixedly connected to the tower body (1). A circulating water pump (7) is provided on the upper end of the circulating water tank (6).

4. The gas recovery equipment for preparing industrial sulfuric acid according to claim 3, characterized in that: The output end of the circulating water pump (7) is fixedly connected to the spray pipe (20), and the spray pipe (20) is fixedly connected to the tower body (1).

5. A gas recovery device for preparing industrial sulfuric acid according to claim 1, characterized in that: The lower end of the drive inner rod (11) is equipped with a fan blade (15), and the fan blade (15) is fixedly connected to the drive inner rod (11).

6. The gas recovery equipment for preparing industrial sulfuric acid according to claim 1, characterized in that: A waste discharge pipe (4) is fixedly installed on one side of the lower end of the tower body (1), and a valve (5) is installed on the outside of the waste discharge pipe (4).

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