Device with dehumidification mechanism for preparing sulfuric acid catalyst by oxidizing sulfur dioxide

Abstract

The utility model belongs to the technical field of chemical equipment, and discloses a sulfur dioxide oxidation sulfuric acid catalyst preparation device with a dehumidification mechanism, which comprises a first reaction box, a first catalyst is arranged in the first reaction box, and a second reaction box is arranged on the right side of the first reaction box. A first catalyst is arranged in the first reaction box, a second catalyst is arranged in the second reaction box, a heating wire is arranged in the second reaction box, and the heating wire, a controller, a first connecting pipe, an air pump, a second connecting pipe, a third reaction box and dehumidification filler are arranged, so that the interior of the first reaction box is used for reacting sulfur dioxide, and the interior of the second reaction box is used for reacting sulfur trioxide; the heating wire can heat sulfur trioxide gas, the temperature is controlled through the controller, then the sulfur trioxide gas is input into the third reaction box through the air pump, moisture and impurities in the preheated gas can be removed through the dehumidification filler, the humidity of the gas can be reduced, and the concentration of sulfuric acid can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to a catalyst device for producing sulfuric acid by oxidizing sulfur dioxide with a dehumidification mechanism. Background Art

[0002] A sulfuric acid catalyst unit is a key piece of equipment specifically designed to accelerate the chemical reaction rate and improve production efficiency during the sulfuric acid production process using sulfur dioxide as a catalyst. By adding a specific catalyst, the unit oxidizes sulfur dioxide to sulfur trioxide, and then to sulfuric acid, at a specific temperature and pressure. It is widely used in the chemical industry, environmental protection, and other fields, playing a crucial role in the production of sulfuric acid.

[0003] There is currently a Chinese patent application number 201620139752.0 for a catalyst activity evaluation device for sulfuric acid produced by oxidation of sulfur dioxide. The utility model belongs to the field of chemical equipment and relates to a catalyst activity evaluation device for sulfuric acid produced by oxidation of sulfur dioxide. It mainly includes a raw gas preparation system, a purification system, a reaction system and an analysis system. The beneficial effects of the utility model are: 1. The device operates under normal pressure, with low investment cost, small footprint, simple test process and easy operation. 2. The use of an original particle size tubular reactor makes the reaction of the catalyst closer to the actual conditions of the factory, which can better reflect the actual conditions of the catalyst's industrial use. 3. The analysis system uses a water-sealed bottle to divert the gas, which reduces the fluctuation of the flow rate and makes the analysis results more stable.

[0004] The device mainly includes a raw gas preparation system, a purification system, a reaction system and an analysis system. It can operate under normal pressure and has the advantages of low investment cost, small footprint, simple test process and easy operation. However, the device lacks dehumidification equipment, and the moisture in the raw gas may react with the catalyst, thereby affecting the accuracy of the catalyst activity evaluation.

[0005] Therefore, we propose a sulfur dioxide oxidation sulfuric acid catalyst device with a dehumidification mechanism to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to provide a sulfur dioxide oxidation catalyst device for producing sulfuric acid with a dehumidification mechanism, so as to solve the problem that the existing device proposed in the above background technology mainly includes a raw gas preparation system, a purification system, a reaction system and an analysis system, can be operated at normal pressure, has the advantages of low investment cost, small footprint, simple test process, and easy operation, but lacks dehumidification equipment in the device, and the moisture in the raw gas may react with the catalyst, thereby affecting the accuracy of the catalyst activity evaluation.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a sulfur dioxide oxidation sulfuric acid catalyst device with a dehumidification mechanism, comprising a first reaction box, a first catalyst is arranged inside the first reaction box, and a second reaction box is arranged on the right side of the first reaction box, a second catalyst is arranged inside the second reaction box, and a heating wire is arranged inside the second reaction box, a controller is provided on the outer surface of the second reaction box, and a first connecting pipe is connected to the right side of the second reaction box, an air pump is provided on the right side of the first connecting pipe, and a second connecting pipe is provided on the right side of the air pump, a third reaction box is connected to the right side of the second connecting pipe, and a dehumidification filler is slidably connected to the interior of the third reaction box, a connecting plate is fixedly connected to the right side of the dehumidification filler, and a third catalyst is arranged inside the third reaction box, and the third catalyst is located below the dehumidification filler.

[0008] Preferably, the bottom of the third reaction box is connected to a discharge pipe, and the outside of the discharge pipe is fixedly connected to a connecting pipe sleeve.

[0009] Preferably, a third connecting pipe is slidably connected to the bottom of the discharge pipe, and a clamping block is fixedly connected to the bottom of the discharge pipe.

[0010] Preferably, a card slot is provided on the top of the third connecting tube, and the card block is slidably connected to the card slot.

[0011] By adopting the above technical solution, the third connecting pipe and the discharge pipe are slidably connected through the card slot and the card block to form a preliminary positioning self-locking.

[0012] Preferably, a cavity is provided inside the connecting sleeve, and a positioning rod is slidably connected inside the cavity, and a tension spring is connected between the cavity and the positioning rod.

[0013] By adopting the above technical solution, by pulling the positioning rod, the positioning rod can drive the tension spring to contract, and after the positioning rod is loosened, the tension spring can drive the positioning rod to reset.

[0014] Preferably, a positioning groove is provided on one side of the clamping block, and the positioning rod is slidably connected to the positioning groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the catalyst device for producing sulfuric acid by oxidation of sulfur dioxide with a dehumidification mechanism;

[0016] 1. Through the provided heating wire, controller, first connecting pipe, air pump, second connecting pipe, third reaction box and dehumidification filler, the interior of the first reaction box is used to react sulfur dioxide, and the interior of the second reaction box is used to react sulfur trioxide. The heating wire can heat the sulfur trioxide gas, and the temperature is controlled by the controller. The gas is then pumped into the interior of the third reaction box. The preheated gas can pass through the dehumidification filler to remove moisture and impurities in the gas, thereby reducing its humidity and increasing the concentration of sulfuric acid.

[0017] 2. Through the provided discharge pipe, connecting pipe sleeve, third connecting pipe, clamping block, clamping slot, cavity, positioning rod, tension spring and positioning slot, the dehumidified reaction gas is discharged through the discharge pipe in the form of liquid water. Pull the positioning rod, so that the positioning rod drives the tension spring to contract, and the discharge pipe and the third connecting pipe are in a clamping structure through the clamping block and the clamping slot. Loosen the positioning rod, and the positioning rod can be slidably connected to the positioning slot, so as to facilitate quick connection of the discharge pipe and the third connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front view cutaway structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 A in the middle is an enlarged structural diagram;

[0020] Figure 3 This is a schematic diagram of the front view structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the discharge pipe and the third connecting pipe of the utility model;

[0022] In the figure: 1. first reaction box; 2. first catalyst; 3. second reaction box; 4. second catalyst; 5. heating wire; 6. controller; 7. first connecting pipe; 8. air pump; 9. second connecting pipe; 10. third reaction box; 11. dehumidification filler; 12. connecting plate; 13. third catalyst; 14. discharge pipe; 15. connecting pipe sleeve; 16. third connecting pipe; 17. block; 18. slot; 19. cavity; 20. positioning rod; 21. tension spring; 22. positioning slot. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 4 The utility model provides a technical solution: a sulfur dioxide oxidation sulfuric acid catalyst device with a dehumidification mechanism, comprising a first reaction box 1, a first catalyst 2 is arranged inside the first reaction box 1, and a second reaction box 3 is arranged on the right side of the first reaction box 1, a second catalyst 4 is arranged inside the second reaction box 3, and a heating wire 5 is arranged inside the second reaction box 3, a controller 6 is arranged on the outer surface of the second reaction box 3, and a first connecting pipe 7 is connected to the right side of the second reaction box 3, an air pump 8 is arranged on the right side of the first connecting pipe 7, and a second connecting pipe 9 is arranged on the right side of the air pump 8, a third reaction box 10 is connected to the right side of the second connecting pipe 9, and the interior of the third reaction box 10 is slidably connected to the dehumidification device. Filler 11, a connecting plate 12 is fixedly connected to the right side of the dehumidification filler 11, and a third catalyst 13 is provided inside the third reaction box 10, and the third catalyst 13 is located below the dehumidification filler 11. The interior of the first reaction box 1 is used to react sulfur dioxide, and the interior of the second reaction box 3 is used to react sulfur trioxide. The heating wire 5 can heat the sulfur trioxide gas and control the temperature through the controller 6, and then input it into the interior of the third reaction box 10 by the air pump 8. The preheated gas can pass through the dehumidification filler 11 to remove moisture and impurities in the gas, which can reduce its humidity and increase the concentration of sulfuric acid. The dehumidification filler 11 is slidably connected to the third reaction box 10, and the dehumidification filler 11 can be quickly disassembled and replaced.

[0025] The bottom of the third reaction box 10 is connected to a discharge pipe 14, and the outside of the discharge pipe 14 is fixedly connected to a connecting pipe sleeve 15. A third connecting pipe 16 is slidably connected to the bottom of the discharge pipe 14, and a clamping block 17 is fixedly connected to the bottom of the discharge pipe 14. A clamping groove 18 is provided on the top of the third connecting pipe 16, and the clamping block 17 is slidably connected to the clamping groove 18. A cavity 19 is provided inside the connecting pipe sleeve 15, and a positioning rod 20 is slidably connected inside the cavity 19. A tension spring 21 is connected between the cavity 19 and the positioning rod 20. A positioning groove 22 is provided on one side of the block 17, and the positioning rod 20 is slidably connected to the positioning groove 22. The dehumidified reaction gas is discharged through the discharge pipe 14 in the form of liquid water. Pulling the positioning rod 20 causes the positioning rod 20 to drive the tension spring 21 to contract, and the discharge pipe 14 and the third connecting pipe 16 are in a locking structure through the block 17 and the slot 18. Loosening the positioning rod 20 allows the positioning rod 20 to be slidably connected to the positioning groove 22, thereby facilitating quick connection of the discharge pipe 14 and the third connecting pipe 16.

[0026] Working principle: When using the sulfur dioxide oxidation to sulfuric acid catalyst device with a dehumidification mechanism, the interior of the first reaction box 1 is first used to react sulfur dioxide, and the interior of the second reaction box 3 is used to react sulfur trioxide. The heating wire 5 can heat the sulfur trioxide gas and control the temperature through the controller 6. The gas is then input into the interior of the third reaction box 10 by the air pump 8, and the preheated gas can pass through the dehumidification filler 11 to remove moisture and impurities in the gas, which can reduce its humidity and increase the concentration of sulfuric acid. The dehumidified reaction gas is discharged through the discharge pipe 14 in the form of liquid water, pulling the positioning rod 20 so that the positioning rod 20 drives the tension spring 21 to contract, and the discharge pipe 14 and the third connecting pipe 16 are in a locking structure through the block 17 and the slot 18. Loosen the positioning rod 20, and the positioning rod 20 can be slidably connected to the positioning slot 22, so as to facilitate the quick connection of the discharge pipe 14 and the third connecting pipe 16.

[0027] Thereby completing a series of tasks, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sulfur dioxide oxidation catalyst device with a dehumidification mechanism, comprising a first reaction box (1), characterized in that: A first catalyst (2) is provided inside the first reaction box (1), and a second reaction box (3) is provided on the right side of the first reaction box (1), a second catalyst (4) is provided inside the second reaction box (3), and a heating wire (5) is provided inside the second reaction box (3), a controller (6) is provided on the outer surface of the second reaction box (3), and a first connecting pipe (7) is connected to the right side of the second reaction box (3); An air pump (8) is provided on the right side of the first connecting pipe (7), and a second connecting pipe (9) is provided on the right side of the air pump (8), a third reaction box (10) is connected to the right side of the second connecting pipe (9), and a dehumidification filler (11) is slidably connected inside the third reaction box (10), a connecting plate (12) is fixedly connected to the right side of the dehumidification filler (11), and a third catalyst (13) is provided inside the third reaction box (10), and the third catalyst (13) is located below the dehumidification filler (11).

2. The sulfur dioxide oxidation catalyst device with a dehumidification mechanism according to claim 1, characterized in that: The bottom of the third reaction box (10) is connected to a discharge pipe (14), and the outside of the discharge pipe (14) is fixedly connected to a connecting pipe sleeve (15).

3. The sulfur dioxide oxidation catalyst device with a dehumidification mechanism according to claim 2, characterized in that: A third connecting pipe (16) is slidably connected to the lower portion of the discharge pipe (14), and a clamping block (17) is fixedly connected to the bottom portion of the discharge pipe (14).

4. The sulfur dioxide oxidation catalyst device with a dehumidification mechanism according to claim 3, characterized in that: A clamping groove (18) is provided on the top of the third connecting tube (16), and the clamping block (17) is slidably connected to the clamping groove (18).

5. The sulfur dioxide oxidation catalyst device with a dehumidification mechanism according to claim 2, characterized in that: A cavity (19) is provided inside the connecting pipe sleeve (15), and a positioning rod (20) is slidably connected inside the cavity (19), and a tension spring (21) is connected between the cavity (19) and the positioning rod (20).

6. The sulfur dioxide oxidation catalyst device with a dehumidification mechanism according to claim 3, characterized in that: A positioning groove (22) is provided on one side of the clamping block (17), and the positioning rod (20) is slidably connected to the positioning groove (22).

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