A magnesium sulfate catalytic oxidation reactor and method

Abstract

The present invention relates to the technical field of catalytic oxidation reactors, and discloses a magnesium sulfate catalytic oxidation reactor and method. The magnesium sulfate catalytic oxidation reactor includes a bracket on which a reactor tank is mounted; a catalyst addition unit, the catalyst addition unit including a catalyst bin arranged inside the reactor tank, a grinding disc mounted inside the catalyst bin, and a grinding core mounted inside the grinding disc; and a catalyst dispersion unit, the catalyst dispersion unit including a dispersion disc arranged at the bottom of the catalyst bin, and a plurality of dispersion pipes mounted in an annular shape at one end of the dispersion disc away from the catalyst bin. The present invention uses the grinding disc and the grinding core driven by a connecting shaft to finely grind the catalyst, significantly increasing the specific surface area of ​​the catalyst, fully exposing active sites, allowing the catalyst activity to be fully exerted, and significantly improving the reaction efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of catalytic oxidation reactors, and more particularly to a magnesium sulfate catalytic oxidation reactor and method. Background Art

[0002] The catalytic oxidation of magnesium sulfite is a key process step in the production of magnesium sulfate. In the chemical industry, magnesium sulfate, as an important inorganic chemical product, is widely used in industries such as fertilizers, pharmaceuticals, and printing and dyeing. Currently, the catalytic oxidation of magnesium sulfite is commonly used in the industry to produce magnesium sulfate.

[0003] In the industrial production process of magnesium sulfate catalytic oxidation reaction, the use of catalysts is one of the core factors that determine the reaction efficiency and product quality. From the perspective of the characteristics of the catalyst itself, the catalyst that has not been ground exists in the form of larger particles and its specific surface area is relatively small. According to surface chemistry theory, the catalytic activity of the catalyst mainly depends on its surface active sites. Insufficient specific surface area means that the number of exposed active sites is limited. When this type of unrefined catalyst is directly put into the magnesium sulfite solution, the actual contact area between the catalyst and the solution is greatly limited, resulting in a large amount of catalyst being unable to fully exert its catalytic effect, which slows the magnesium sulfite oxidation reaction rate, prolongs the reaction cycle, and significantly reduces production efficiency.

[0004] In addition, existing reactors usually adopt a method of combining simple stirring with bottom aeration, which makes it difficult to achieve sufficient mixing of magnesium sulfite solution and uniform distribution of oxygen. Due to poor stirring effect, the solution is prone to local concentration differences, resulting in inconsistent reaction rates and insufficient reaction in some areas, which not only prolongs the reaction time but also reduces the overall reaction efficiency. At the same time, the single bottom aeration method causes oxygen to be mainly concentrated in the lower part of the solution, and the upper area has insufficient oxygen supply, and the gas-liquid contact area is limited, which cannot provide sufficient oxygen for the magnesium sulfite oxidation reaction, thereby affecting the yield of magnesium sulfate. Summary of the Invention

[0005] The present invention provides a magnesium sulfate catalytic oxidation reactor and method, which solves the technical problem in related technologies that the actual contact area between the catalyst and the solution is greatly limited, resulting in a large amount of catalyst being unable to fully exert its catalytic effect, causing the magnesium sulfite oxidation reaction rate to be slow, the reaction cycle to be extended, and the production efficiency to be significantly reduced.

[0006] On one hand, the present invention discloses a magnesium sulfate catalytic oxidation reactor, comprising a bracket, a reactor tank body is mounted on the bracket, a motor is mounted on the reactor tank body, a connecting shaft is mounted on the output shaft of the motor, and a feed pipe is also mounted on the reactor tank body; a catalyst adding unit, the catalyst adding unit comprising a catalyst bin arranged inside the reactor tank body, a grinding disc is mounted inside the catalyst bin, and a grinding core is mounted inside the grinding disc; a catalyst dispersing unit, the catalyst dispersing unit comprising a dispersing disc arranged at the bottom of the catalyst bin, and a plurality of dispersing pipes are mounted in a ring shape on one end of the dispersing disc away from the catalyst bin, and the interior of the dispersing disc is connected to the dispersing pipes.

[0007] As a further optimization scheme of the present invention, a first sleeve is installed on the grinding core, the first sleeve is slidably connected to the outside of the connecting shaft, and multiple sets of spline blocks are slidably connected to the inside of the first sleeve, and the connecting shaft and the spline blocks are fixedly connected.

[0008] As a further optimization solution of the present invention, a first feed pipe is installed on the catalyst bin, and a second feed pipe is slidably connected to the inside of the first feed pipe, and the second feed pipe passes through the reactor tank body and extends to the upper surface of the reactor tank body.

[0009] As a further optimization solution of the present invention, a dispersion diaphragm is provided at one end of the second feed pipe close to the catalyst bin, and multiple groups of connecting rods are installed between the dispersion diaphragm and the second feed pipe.

[0010] As a further optimization solution of the present invention, a first annular groove is provided at one end of the dispersion disk close to the catalyst bin, and a first annular slider is slidably connected inside the first annular groove, and the first annular slider is fixedly connected to the catalyst bin.

[0011] As a further optimization scheme of the present invention, a first gear is installed on the dispersion disk, and a second gear is meshedly connected to the first gear, a second sleeve is installed on the second gear, a spline shaft is slidably connected inside the second sleeve, and a rotating shaft is installed on the spline shaft, and the output shaft of the motor and the rotating shaft are connected through a pulley transmission mechanism.

[0012] As a further optimization solution of the present invention, an aeration plate is provided inside the reactor tank, a transmission pipe is installed on the aeration plate, and a pneumatic processing unit is provided on the dispersion plate.

[0013] As a further optimization scheme of the present invention, the pneumatic processing unit includes an air supply plate arranged on the outside of the dispersion plate and a second annular groove opened on the dispersion plate, a second annular slider is slidably connected in the second annular groove, and the second annular slider is fixedly connected to the air supply plate, an air supply pipe is installed on the air supply plate, the transmission pipe and the air supply pipe are connected by a connecting pipe, and multiple groups of air ports are opened in an annular shape on the dispersion plate, and the air ports are connected to the interior of the air supply plate.

[0014] As a further optimization solution of the present invention, a connecting frame is installed on the catalyst bin, an electric push rod is installed on the reactor tank, and the telescopic end of the electric push rod passes through the reactor tank and is fixedly connected to the connecting frame.

[0015] Another aspect of the present invention discloses a magnesium sulfate catalytic oxidation reaction method, comprising the following steps:

[0016] S1, feeding magnesium sulfite solution into the reactor tank through the feed pipe, and at the same time adding the catalyst into the catalyst bin through the first feed pipe and the second feed pipe;

[0017] S2. Grind the catalyst in the catalyst compartment by cooperating with the grinding core and the grinding disc to refine the catalyst particles;

[0018] S3, the ground catalyst falls to the bottom of the catalyst bin and rotates through the dispersion tube, using centrifugal force to throw the catalyst out through the dispersion tube and evenly disperse it into the solution in the reactor tank;

[0019] S4. The electric push rod drives the connecting frame to move the catalyst chamber up and down. When the catalyst chamber moves down, the dispersion pipe enters the solution, forming an up and down synchronous aeration mode with the aeration disk;

[0020] S5. When the gas is discharged through the dispersion pipe, it impacts the impeller to make it rotate, and the shear force and impact force generated by the blades are used to secondary break up and crush the residual catalyst powder in the dispersion pipe.

[0021] The beneficial effects of the present invention are as follows: the present invention uses a grinding disc and a grinding core driven by a connecting shaft to finely grind the catalyst, significantly increasing the specific surface area of ​​the catalyst and fully exposing the active sites; and uses a dispersion disc and a dispersion tube to evenly disperse the ground catalyst into the solution using centrifugal force, ensuring that the catalyst is evenly distributed within the reactor, allowing the catalyst activity to be fully utilized and significantly improving the reaction efficiency. In addition, the aeration disc and the dispersion tube form a synchronous aeration pattern at the top and bottom, injecting oxygen into the solution in the form of tiny bubbles from the top and bottom of the reactor, effectively reducing reaction dead spots and incomplete reactions, thereby significantly improving the yield and quality of magnesium sulfate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal three-dimensional cross-sectional structure of the reactor tank of the present invention;

[0024] Figure 3 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0025] Figure 4 It is a schematic diagram of the partial three-dimensional structure of the catalyst addition unit, catalyst dispersion unit and pneumatic processing unit of the present invention;

[0026] Figure 5 The present invention Figure 4 Schematic diagram of the cross-section of the structure;

[0027] Figure 6 The present invention Figure 4 Schematic diagram of the cross-section of the three-dimensional structure;

[0028] Figure 7 The present invention Figure 6 A magnified view of the structure at center A;

[0029] Figure 8 The present invention Figure 6 A magnified view of the structure at point B in the middle;

[0030] Figure 9 It is a schematic diagram of the internal structure of the dispersion tube of the present invention.

[0031] In the figure: 1. bracket; 2. reactor tank; 3. motor; 4. connecting shaft; 5. stirring blade; 6. aeration plate; 7. transmission pipe; 8. catalyst chamber; 9. grinding plate; 10. grinding core; 11. first sleeve; 12. spline block; 13. first feed pipe; 14. second feed pipe; 15. dispersion diaphragm; 16. connecting rod; 17. dispersion plate; 18. dispersion pipe; 19. first annular slider; 20. connecting frame; 21. electric push rod; 22. first gear; 23. second gear; 24. second sleeve; 25. fixing frame; 26. spline shaft; 27. rotating shaft; 28. pulley transmission mechanism; 29. ​​air supply plate; 30. second annular slider; 31. air supply pipe; 32. connecting pipe; 33. air port; 34. impeller. DETAILED DESCRIPTION

[0032] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed solely to enable those skilled in the art to better understand and implement the subject matter described herein, and that the functions and arrangements of the elements discussed may be varied without departing from the scope of this specification. Various examples may omit, substitute, or add various processes or components as needed. In addition, features described with respect to some examples may also be combined in other examples.

[0033] Example 1: According to Figure 1 、 Figure 2 and Figure 3 As shown, a magnesium sulfate catalytic oxidation reactor includes a bracket 1, a reactor tank body 2 is mounted on the bracket 1, and a motor 3 is mounted on the reactor tank body 2, a connecting shaft 4 is mounted on the output shaft of the motor 3, and the connecting shaft 4 is connected to the interior of the reactor tank body 2 by a bearing, a plurality of stirring blades 5 are mounted on the connecting shaft 4, and an aeration plate 6 is arranged below a group of stirring blades 5 at the bottom.

[0034] Specifically, aeration disc 6 is mounted with a transmission pipe 7, which extends through reactor tank 2 to the outer surface of reactor tank 2. Transmission pipe 7 is used to connect to an external air supply device, and by driving the air supply device, aeration disc 6 aerates the solution inside reactor tank 2. Furthermore, reactor tank 2 is also equipped with a feed pipe for magnesium sulfite solution to enter, oxidizing the magnesium sulfite to magnesium sulfate.

[0035] During operation, the motor 3 drives the connecting shaft 4 to rotate, and the multiple stirring blades 5 on the connecting shaft 4 rotate accordingly. The stirring blades 5 rotate in the reactor tank body 2, which can make the magnesium sulfite solution in the reactor tank body 2 flow, play a role in stirring and mixing, and make the components in the solution more evenly distributed, avoiding the situation where the local concentration is too high or too low, thereby improving the uniformity and efficiency of the reaction; at the same time, the external air supply device supplies air to the aeration disk 6 through the transmission pipe 7, and the aeration disk 6 disperses the gas into tiny bubbles and releases them into the solution in the reactor tank body 2.

[0036] It should be understood that the bubbles provide a source of oxygen, which fully contacts the magnesium sulfite solution and, under certain conditions, oxidizes the magnesium sulfite to magnesium sulfate. Furthermore, the stirring action of the stirring blades 5 causes the solution to flow, further promoting contact and mixing of the oxygen and magnesium sulfite, thereby accelerating the oxidation reaction.

[0037] In one embodiment, according to Figures 4 to 7As shown, the interior of the reactor tank body 2 is provided with a catalyst addition unit, which includes a catalyst bin 8 provided inside the reactor tank body 2, and a grinding disc 9 is installed inside the catalyst bin 8, a grinding core 10 is provided inside the grinding disc 9, and a first sleeve 11 is installed on the grinding core 10, the first sleeve 11 is slidably connected to the outside of the connecting shaft 4, and the interior of the first sleeve 11 is also slidably connected to multiple groups of spline blocks 12, and the connecting shaft 4 and the spline blocks 12 are fixedly connected. Among them, the catalyst is ground by the grinding disc 9 and the grinding core 10, the catalyst particles are refined, and the contact area between the catalyst and the magnesium sulfite solution is increased, thereby improving the activity and catalytic efficiency of the catalyst, accelerating the reaction rate of magnesium sulfite oxidation to magnesium sulfate, and improving the overall reaction efficiency.

[0038] Specifically, a first feed pipe 13 is mounted on the catalyst chamber 8, and a second feed pipe 14 is slidably connected to the interior of the first feed pipe 13. The second feed pipe 14 passes through the reactor tank 2 and extends to the upper surface of the reactor tank 2. The second feed pipe 14 is fixedly connected to the reactor tank 2. When in use, the second feed pipe 14 is connected to an external feeding device.

[0039] Furthermore, a dispersion diaphragm 15 is provided at one end of the second feed pipe 14 close to the catalyst chamber 8 , and a plurality of connecting rods 16 are installed between the dispersion diaphragm 15 and the second feed pipe 14 .

[0040] It should be understood that the catalyst can be accurately added to the catalyst bin 8 through the first feed pipe 13 and the second feed pipe 14, and the setting of the dispersion diaphragm 15 and the connecting rod 16 ensures that the catalyst is fully dispersed when entering the catalyst bin 8, avoiding catalyst agglomeration.

[0041] During operation, the catalyst enters the catalyst chamber 8 through the first and second feed pipes 13, 14. During the addition process, the dispersion membrane 15, supported by the connecting rod 16, provides preliminary dispersion of the incoming catalyst. Furthermore, the connecting shaft 4, driven by the motor 3, rotates through multiple sets of spline blocks 12, allowing the first sleeve 11 to rotate with the connecting shaft 4. The first sleeve 11 drives the grinding core 10 to rotate. The grinding core 10 cooperates with the grinding disc 9 to grind the catalyst in the catalyst chamber 8, refining the catalyst particles, increasing the catalyst's specific surface area, and enhancing catalytic activity.

[0042] In one embodiment, according to Figures 4 to 6As shown, a catalyst dispersion unit is provided at the bottom of the catalyst bin 8. Through the catalyst dispersion unit, the uniform distribution of the catalyst in the solution is ensured, and the problem of inconsistent reaction rate caused by uneven local concentration of the catalyst is avoided, thereby creating more optimal reaction conditions for the catalytic oxidation reaction of magnesium sulfite, and helping to improve the yield and product quality of magnesium sulfate. The catalyst dispersion unit includes a dispersion plate 17 provided at the bottom of the catalyst bin 8, and a plurality of groups of dispersion tubes 18 are annularly installed at one end of the dispersion plate 17 away from the catalyst bin 8, and the interior of the dispersion plate 17 is connected to the dispersion tubes 18. Among them, the combined structure of the dispersion plate 17 and the dispersion tubes 18 can quickly and evenly disperse the catalyst into the solution by means of centrifugal force.

[0043] Specifically, a first annular chute is formed at one end of the dispersion disc 17 close to the catalyst bin 8 , and a first annular slider 19 is slidably connected inside the first annular chute. The first annular slider 19 is fixedly connected to the catalyst bin 8 .

[0044] It should be explained in detail that, in the catalyst bin 8, after the ground catalyst falls to the bottom, the dispersion disc 17 forms a sliding connection structure with the first annular groove at the bottom of the catalyst bin 8 through the first annular slider 19, so that the dispersion disc 17 can rotate flexibly.

[0045] When the dispersion disc 17 rotates, it drives the multiple groups of dispersion tubes 18 connected to it to rotate together, and the catalyst enters the dispersion disc 17 from the bottom of the catalyst bin 8. Since the dispersion disc 17 is connected to the dispersion tubes 18, during the rotation of the dispersion disc 17 and the dispersion tubes 18, the centrifugal force is used to throw the catalyst out through the dispersion tubes 18 and evenly disperse it into the solution in the reactor tank 2, thereby achieving further dispersion of the catalyst.

[0046] In yet another embodiment, according to Figure 4 and Figure 5 As shown, a first gear 22 is installed on the dispersion disk 17, and a second gear 23 is meshedly connected to the first gear 22, a second shaft sleeve 24 is installed on the second gear 23, a spline shaft 26 is slidably connected inside the second shaft sleeve 24, and a rotating shaft 27 is installed on the spline shaft 26, the rotating shaft 27 passes through the reactor tank body 2 and is connected to the bearing of the reactor tank body 2, and the output shaft of the motor 3 and the rotating shaft 27 are connected through a pulley transmission mechanism 28.

[0047] The second sleeve 24 and the outer portion of the dispersion disc 17 are rotatably connected to a fixing bracket 25 via a bearing. In this embodiment, the fixing bracket 25 allows the second sleeve 24 and the dispersion disc 17 to rotate freely while limiting their radial and axial displacement, thereby ensuring the stability and accuracy of the gear transmission.

[0048] It should be noted that the output shaft of the motor 3 drives the rotating shaft 27 to rotate through the pulley transmission mechanism 28. The spline shaft 26 on the rotating shaft 27 is connected to the second sleeve 24 through a spline sliding connection, so that the second sleeve 24 can rotate synchronously with the rotating shaft 27. The second gear 23 on the second sleeve 24 is engaged with the first gear 22, thereby driving the dispersion disk 17 to rotate.

[0049] In yet another embodiment, according to Figures 4 to 6 ,as well as Figure 8 As shown, a pneumatic processing unit is provided on the dispersion disk 17, and the pneumatic processing unit includes an air supply disk 29 arranged outside the dispersion disk 17 and a second annular chute opened on the dispersion disk 17, a second annular slider 30 is slidably connected in the second annular chute, and the second annular slider 30 is fixedly connected to the air supply disk 29, and an air supply pipe 31 is installed on the air supply disk 29, the air supply pipe 31 is a hose, and the air supply pipe 31 passes through the reactor tank body 2 and extends to the outer surface of the reactor tank body 2.

[0050] The dispersion plate 17 is provided with a plurality of gas ports 33 in an annular shape, and the gas ports 33 are communicated with the interior of the gas supply plate 29 .

[0051] Specifically, the transmission pipe 7 and the air supply pipe 31 are connected via a connecting pipe 32. An electrically controlled valve may be installed on the connecting pipe 32 to control the gas of the aeration supply device, so that the gas can enter or not enter the interior of the air supply pipe 31.

[0052] When the electrically controlled valve on the connecting pipe 32 is opened, the gas enters the gas supply pipe 31 from the transmission pipe 7 through the connecting pipe 32, and then flows into the gas supply disk 29. During the rotation of the dispersion disk 17, the gas supply disk 29 can maintain a relatively stable position. After the gas accumulates in the gas supply disk 29, it is evenly sprayed into the dispersion disk 17 through the multiple groups of gas ports 33 distributed in an annular manner on the dispersion disk 17, and then discharged outward through the dispersion pipe 18, thereby realizing the aeration function.

[0053] In yet another embodiment, according to Figure 2 and Figure 3 As shown, a connecting frame 20 is installed on the catalyst bin 8 , an electric push rod 21 is installed on the reactor tank body 2 , and the telescopic end of the electric push rod 21 passes through the reactor tank body 2 and is fixedly connected to the connecting frame 20 .

[0054] Specifically, after the electric push rod 21 is energized, its telescopic end can perform telescopic movement in the channel reserved on the reactor tank body 2. When the electric push rod 21 is telescopic, it can drive the connecting frame 20, and then push or pull the catalyst bin 8 to move up and down in the reactor tank body 2.

[0055] Furthermore, the connecting frame 20 is driven by the electric push rod 21 to move up and down. When the catalyst bin 8 moves downward, the dispersion pipe 18 on the dispersion plate 17 enters the magnesium sulfite solution. At this time, the dispersion pipe 18 discharges gas for aeration, and works simultaneously with the aeration plate 6 located at the bottom of the reactor tank body 2, forming an upper and lower synchronous aeration mode in which aeration is simultaneously performed from the top and bottom of the solution.

[0056] In the upper and lower synchronous aeration mode, the aeration plate 6 releases bubbles from the bottom and the dispersion pipe 18 discharges gas from the upper part of the solution, so that oxygen can be more evenly and fully distributed in the magnesium sulfite solution, greatly increasing the contact area and contact time between oxygen and magnesium sulfite, significantly improving the oxidation reaction rate and efficiency, and promoting a more thorough conversion of magnesium sulfite into magnesium sulfate.

[0057] Furthermore, electronically controlled valves precisely control the air flow and aeration time of the pneumatic processing unit. Combined with the electric push rod 21, which lowers the position of the catalyst chamber 8, the aeration pattern and catalyst addition position can be dynamically adjusted according to the reaction progress. In the early stages of the reaction, the upper aeration intensity can be reduced, relying primarily on the bottom aeration disc 6. In the middle and later stages of the reaction, the upper aeration is enabled and the catalyst chamber 8 is lowered to optimize reaction conditions and ensure optimal reaction conditions.

[0058] It should be noted that when the catalyst chamber 8 is driven to move downward, the dispersion diaphragm 15 blocks the interior of the first feed pipe 13 and the second feed pipe 14 , so that a seal is formed inside the catalyst chamber 8 , so that the gas can only be discharged from the dispersion pipe 18 .

[0059] In yet another embodiment, according to Figure 9 As shown, an impeller 34 is provided at one end of the dispersion pipe 18 away from the dispersion disk 17 , and a bearing on the impeller 34 is connected to a mounting frame, which is mounted on the dispersion pipe 18 .

[0060] It should be noted that when the gas is discharged through the dispersion pipe 18, the high-speed airflow impacts the blades of the impeller 34, pushing the impeller 34 to rotate around the bearing connection point between it and the mounting frame. Since the impeller 34 is located at the outlet end of the dispersion pipe 18, its rotation will stir the surrounding solution, further breaking up and refining the bubbles discharged from the dispersion pipe 18, and accelerating the diffusion of the bubbles in the solution.

[0061] At the same time, the rotation of the impeller 34 also drives the surrounding solution to form a local vortex, thereby enhancing the mixing effect of the solution and promoting the contact and reaction between oxygen, magnesium sulfite and the catalyst.

[0062] In addition, the rotating blades of the impeller 34 will generate strong shearing and impact forces on the solution, which can secondary disperse and crush the residual powder inside the dispersion tube 18, so that the catalyst is distributed in the solution in a finer and more uniform state.

[0063] Example 2: According to Figures 1 to 9 As shown, a magnesium sulfate catalytic oxidation reaction method, using the magnesium sulfate catalytic oxidation reactor disclosed in Example 1, includes the following steps:

[0064] S1, the magnesium sulfite solution is fed into the reactor tank 2 through the feed pipe, and the catalyst is added to the catalyst bin 8 through the first feed pipe 13 and the second feed pipe 14;

[0065] S2, grinding the catalyst in the catalyst chamber 8 by cooperating with the grinding core 10 and the grinding disc 9 to refine the catalyst particles;

[0066] S3, the ground catalyst falls to the bottom of the catalyst bin 8, and rotates through the dispersion pipe 18, and the catalyst is thrown out through the dispersion pipe 18 by centrifugal force and evenly dispersed into the solution of the reactor tank 2;

[0067] S4. The electric push rod 21 drives the connecting frame 20 to move the catalyst bin 8 up and down. When the catalyst bin 8 moves down, the dispersion pipe 18 enters the solution, forming an up and down synchronous aeration mode with the aeration disk 6, promoting the full contact of magnesium sulfite with oxygen and an oxidation reaction to generate magnesium sulfate.

[0068] S5. When the gas is discharged through the dispersion pipe 18, it impacts the impeller 34 to rotate, and the shear force and impact force generated by the blades are used to secondary break up and crush the residual catalyst powder in the dispersion pipe 18, thereby further improving the mass transfer efficiency and catalytic effect.

[0069] The above describes an embodiment of this specific implementation method, but this embodiment is not limited to the above specific implementation method. The above specific implementation method is merely illustrative and not restrictive. Ordinary technicians in this field can also make many forms based on the inspiration of this embodiment, all of which are protected by this embodiment.

Claims

1. A magnesium sulfate catalytic oxidation reactor, characterized in that, include: A bracket (1), a reactor tank (2) is mounted on the bracket (1), a motor (3) is mounted on the reactor tank (2), a connecting shaft (4) is mounted on the output shaft of the motor (3), and a feed pipe is also mounted on the reactor tank (2); A catalyst addition unit, the catalyst addition unit comprising a catalyst chamber (8) disposed inside the reactor tank (2), a grinding disc (9) being installed inside the catalyst chamber (8), and a grinding core (10) being provided inside the grinding disc (9); A catalyst dispersion unit, the catalyst dispersion unit comprising a dispersion plate (17) disposed at the bottom of the catalyst bin (8), and a plurality of dispersion tubes (18) are annularly mounted on one end of the dispersion plate (17) away from the catalyst bin (8), the interior of the dispersion plate (17) being in communication with the dispersion tubes (18); When the dispersion disc (17) rotates, it drives the multiple groups of dispersion tubes (18) connected thereto to rotate together, and the catalyst enters the dispersion disc (17) from the bottom of the catalyst bin (8). Since the dispersion disc (17) and the dispersion tubes (18) are connected, during the rotation of the dispersion disc (17) and the dispersion tubes (18), the catalyst is thrown out through the dispersion tubes (18) by centrifugal force and evenly dispersed into the solution of the reactor tank (2); An impeller (34) is provided at one end of the dispersion pipe (18) away from the dispersion disc (17), and a bearing on the impeller (34) is connected to a mounting frame, which is mounted on the dispersion pipe (18); When the gas is discharged through the dispersion tube (18), the high-speed airflow impacts the blades of the impeller (34), pushing the impeller (34) to rotate around the bearing connection point between the impeller and the mounting frame, generating a stirring effect on the surrounding solution, so that the bubbles discharged from the dispersion tube (18) are further broken and refined; An aeration plate (6) is provided inside the reactor tank (2), a transmission pipe (7) is installed on the aeration plate (6), and a pneumatic processing unit is provided on the dispersion plate (17); the pneumatic processing unit includes an air supply plate (29) provided outside the dispersion plate (17), an air supply pipe (31) is installed on the air supply plate (29), and the transmission pipe (7) and the air supply pipe (31) are connected via a connecting pipe (32); A connecting frame (20) is installed on the catalyst bin (8), an electric push rod (21) is installed on the reactor tank (2), and a telescopic end of the electric push rod (21) passes through the reactor tank (2) and is fixedly connected to the connecting frame (20); The connecting frame (20) is driven by an electric push rod (21) to move up and down. When the catalyst chamber (8) moves down, the dispersion pipe (18) on the dispersion plate (17) enters the magnesium sulfite solution. At this time, the dispersion pipe (18) discharges gas for aeration, and works simultaneously with the aeration plate (6) located at the bottom of the reactor tank (2), forming a synchronous aeration mode in which aeration is simultaneously performed from the top and bottom of the solution.

2. A magnesium sulfate catalytic oxidation reactor according to claim 1, characterized in that, A first sleeve (11) is mounted on the grinding core (10), the first sleeve (11) being slidably connected to the outside of the connecting shaft (4), and a plurality of groups of spline blocks (12) are slidably connected to the inside of the first sleeve (11), and the connecting shaft (4) and the spline blocks (12) are fixedly connected.

3. A magnesium sulfate catalytic oxidation reactor according to claim 1, characterized in that, A first feed pipe (13) is installed on the catalyst bin (8), and a second feed pipe (14) is slidably connected inside the first feed pipe (13), and the second feed pipe (14) passes through the reactor tank body (2) and extends to the upper surface of the reactor tank body (2).

4. A magnesium sulfate catalytic oxidation reactor according to claim 3, characterized in that, A dispersion diaphragm (15) is provided at one end of the second feed pipe (14) close to the catalyst bin (8), and a plurality of connecting rods (16) are installed between the dispersion diaphragm (15) and the second feed pipe (14).

5. A magnesium sulfate catalytic oxidation reactor according to claim 1, characterized in that, A first annular chute is provided at one end of the dispersion plate (17) close to the catalyst bin (8), and a first annular slider (19) is slidably connected inside the first annular chute. The first annular slider (19) is fixedly connected to the catalyst bin (8).

6. A magnesium sulfate catalytic oxidation reactor according to claim 5, characterized in that, A first gear (22) is mounted on the dispersion disk (17), and a second gear (23) is meshedly connected to the first gear (22), a second shaft sleeve (24) is mounted on the second gear (23), a spline shaft (26) is slidably connected inside the second shaft sleeve (24), and a rotating shaft (27) is mounted on the spline shaft (26), and an output shaft of the motor (3) and the rotating shaft (27) are connected in transmission via a pulley transmission mechanism (28).

7. A magnesium sulfate catalytic oxidation reactor according to claim 1, characterized in that, The pneumatic processing unit further comprises a second annular groove provided on the dispersion disk (17), a second annular slider (30) being slidably connected in the second annular groove, and the second annular slider (30) being fixedly connected to the air supply disk (29), a plurality of groups of air ports (33) being provided in an annular shape on the dispersion disk (17), and the air ports (33) being communicated with the interior of the air supply disk (29).

8. A magnesium sulfate catalytic oxidation reaction method, using a magnesium sulfate catalytic oxidation reactor according to any one of claims 1 to 7, characterized in that: The steps include: S1, feeding the magnesium sulfite solution into the reactor tank (2) through the feed pipe, and at the same time, adding the catalyst into the catalyst bin (8) through the first feed pipe (13) and the second feed pipe (14); S2, grinding the catalyst in the catalyst chamber (8) by cooperating with the grinding core (10) and the grinding disc (9) to refine the catalyst particles; S3, the ground catalyst falls to the bottom of the catalyst bin (8) and rotates through the dispersion tube (18), and the catalyst is thrown out through the dispersion tube (18) by centrifugal force and evenly dispersed into the solution of the reactor tank (2); S4. Subsequently, the electric push rod (21) drives the connecting frame (20) to move the catalyst chamber (8) up and down. When the catalyst chamber (8) moves down, the dispersion pipe (18) enters the solution, forming an up and down synchronous aeration mode with the aeration disk (6); S5. When the gas is discharged through the dispersion pipe (18), it impacts the impeller (34) to rotate, and the shear force and impact force generated by the blades are used to secondary break up and crush the catalyst powder remaining in the dispersion pipe (18).

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