A production device and method for preparing hydrogen peroxide from raw materials

Abstract

The present invention discloses a production device and preparation method for preparing hydrogen peroxide from raw materials, including a hollow processing tank, a raw material tank, and a collecting tank, wherein the top wall of the processing tank is fixedly connected with a functional block, the upper surface of the processing tank is fixedly connected with a shunt block, the shunt block is a hollow structure, the upper surface of the processing tank is fixedly connected with a compressed air pump through a bracket, the input end of the compressed air pump is fixedly connected with the shunt block and extends to the inside thereof, the top wall of the collecting tank is fixedly connected with a fixed block, an atomizing mechanism is arranged in the functional block, an oxidizing mechanism is arranged in the fixed block, the atomizing mechanism includes an atomizing chamber, and the atomizing chamber is opened in the functional block. The advantage is that the device of the present invention greatly improves the oxidation efficiency by oxidizing anthraquinone alcohol by atomizing, and can automatically replenish liquid to ensure continuous production, greatly improve processing efficiency, improve the degree of automation of the device, and can also improve collection efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of gas-liquid two-phase reaction equipment, and in particular to a production device and a preparation method for preparing hydrogen peroxide from raw materials. Background Art

[0002] Hydrogen peroxide, also known as hydrogen peroxide, has certain oxidizing and reducing properties. It is a common inorganic compound with a wide range of uses. Hydrogen peroxide can be used as an oxidant, bleaching agent, disinfectant, dechlorinating agent, rocket fuel, etc. In the industrial preparation of hydrogen peroxide, the anthraquinone method is usually used. The anthraquinone method for preparing hydrogen peroxide is an efficient industrial production method and is widely used in the chemical industry. Since anthraquinone can be reused repeatedly and does not produce other harmful by-products, it has broad application prospects and good environmental friendliness. In the anthraquinone method, the reduced anthraquinone needs to be contacted with oxygen to undergo an oxidation reaction to obtain hydrogen peroxide. The oxidation process of the reduced anthraquinone is usually carried out in a production device, and oxidation is carried out by a countercurrent oxidation method.

[0003] In the prior art, the existing oxidation process generally directly oxidizes the reduced anthraquinone liquid with oxygen or air in a countercurrent manner. Oxygen or air cannot contact the reduced anthraquinone well, resulting in low oxidation efficiency, which in turn leads to low production efficiency. In addition, the produced hydrogen peroxide is mixed with a large amount of unreacted substances, which is not convenient for subsequent separation. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to propose a production device and a preparation method for preparing hydrogen peroxide from raw materials.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A production device for preparing hydrogen peroxide from raw materials comprises a hollow processing tank, a raw material tank and a collecting tank, wherein a functional block is fixedly connected through the top wall of the processing tank, a diverter block is fixedly connected to the upper surface of the processing tank, the diverter block is a hollow structure, a compressed air pump is fixedly connected to the upper surface of the processing tank through a bracket, an input end of the compressed air pump is fixedly connected to the diverter block through and extends into the inside thereof, a fixed block is fixedly connected through the top wall of the collecting tank, an atomizing mechanism is arranged in the functional block, and an oxidizing mechanism is arranged in the fixed block.

[0007] Furthermore, the atomization mechanism includes an atomization chamber, which is opened in the functional block, and a metal wire mesh is fixedly connected to the bottom wall of the atomization chamber. A plurality of capillaries are fixedly connected through the functional block, and the capillaries connect the atomization chamber with the interior of the treatment tank. The functional block has two through chambers, and both of the through chambers are connected to the atomization chamber. The two through chambers are symmetrically opened with respect to the atomization chamber. The functional block and the diverter block are jointly connected through a first inlet pipe, and the first inlet pipe connects the diverter block with one of the through chambers.

[0008] Furthermore, the oxidation mechanism includes an oxidation trough, which is opened in the fixed block, and the functional block is provided with a driving cavity. The functional block and the diverter block are jointly penetrated and fixedly connected with a second inlet pipe, and the second inlet pipe connects the diverter block with the driving cavity. The fixed block and the functional block are jointly penetrated and fixedly connected with an atomization pipe, and the atomization pipe connects the oxidation trough with one of the through cavities. The fixed block and the functional block are jointly penetrated and fixedly connected with an outlet pipe.

[0009] Furthermore, the fixing block is provided with an air cavity, the air outlet pipe connects the driving cavity with the air cavity, and the fixing block is provided with a plurality of discharge holes, and the discharge holes connect the air cavity with the oxidation tank.

[0010] Furthermore, an automatic liquid replenishing mechanism is provided in the processing tank, and the automatic liquid replenishing mechanism includes a liquid replenishing chamber, and the liquid replenishing chamber is opened in the bottom wall of the processing tank, the processing tank and the functional block are rotatably connected with a main shaft through a bearing, one end of the main shaft extends through the driving chamber and is fixedly connected with an impeller, and the other end extends through the liquid replenishing chamber, a filling plate is sealingly and slidably connected in the liquid replenishing chamber, a T-shaped block is fixedly connected to the side wall of the filling plate close to the main shaft, the T-shaped block is provided with a waist-shaped hole, and the T-shaped block is slidably connected to a driving rod through the waist-shaped hole, and a connecting rod is fixedly connected to the side wall of the main shaft located in a section of the liquid replenishing chamber, and the connecting rod is fixedly connected to the driving rod, the raw material tank and the processing tank are jointly penetrated and fixedly connected with a liquid inlet pipe, the liquid inlet pipe connects the raw material tank with the liquid replenishing chamber, and the processing tank is penetrated and fixedly connected with a liquid outlet pipe, and the liquid outlet pipe connects the liquid replenishing chamber with the inside of the processing tank.

[0011] Furthermore, one-way valves are provided in both the liquid inlet pipe and the liquid outlet pipe.

[0012] Furthermore, a scraping mechanism is provided in the collecting tank, and the scraping mechanism includes a cavity, which is opened in the bottom wall of the collecting tank, and the collecting tank and the processing tank are jointly penetrated by a plurality of sliding rods that are slidably connected, one end of the sliding rod extends through the liquid replenishing cavity and is fixedly connected to the side wall of the T-shaped block, and the other end extends through the cavity and is fixedly connected to an arc plate, and the side wall of the arc plate away from the processing tank is fixedly connected to a rack, the collecting tank is rotatably connected to a rotating column through a bearing, one end of the rotating column located in the cavity is penetrated and fixedly connected to a gear, the rack is meshed with the gear, and the side wall of the rotating column located in a section inside the collecting tank is fixedly connected to a plurality of fixed rods, and the fixed rods are fixedly connected to a scraper, and the scraper is slidably connected to the inner wall of the collecting tank.

[0013] Furthermore, the longitudinal cross-sectional area of ​​the through cavity 6 is larger than the longitudinal cross-sectional area of ​​the atomization cavity 5 .

[0014] The present invention also provides a method for preparing hydrogen peroxide from raw materials, comprising the following steps:

[0015] S1. Raw material preparation: prepare dimethyl anthraquinone and hydrogen to be used, and inject dimethyl anthraquinone into the raw material tank;

[0016] S2, reduction reaction: the prepared hydrogen is introduced into the raw material tank, so that the anthraquinone inside reacts with the hydrogen to generate anthraquinone alcohol, which is stored in the raw material tank;

[0017] S3, oxidation reaction: Turn on the compressed air pump, the anthraquinone alcohol in the treatment tank is atomized in the functional block, and then enters the oxidation tank of the fixed block, and contacts with the air discharged from the discharge hole in countercurrent. When the anthraquinone alcohol contacts oxygen, it is oxidized back to anthraquinone and generates hydrogen peroxide, which falls into the collection tank for collection;

[0018] S4, separation: the mixture in the collection tank is separated from the hydrogen peroxide and anthraquinone by extraction, the hydrogen peroxide is collected, and the separated anthraquinone is collected and reused;

[0019] S5, purification: the crude hydrogen peroxide collected in S4 is adsorbed and filtered to remove unreacted raw materials and by-products to obtain purified hydrogen peroxide.

[0020] The present invention has the following advantages:

[0021] 1. Compressed air is provided by a compressed air pump. When the compressed air passes through the atomization chamber, it is further accelerated, thereby reducing the pressure in the atomization chamber. The liquid in the capillary will be sucked out and cut into smaller droplets through a metal wire mesh, thereby atomizing the liquid. The atomized anthraquinone alcohol contacts the pumped air, thereby obtaining a larger contact area, thereby achieving a better oxidation effect.

[0022] 2. Atomization by passing droplets through a metal mesh is a macroscopic cutting. Compared with atomization using an atomizing sheet, it can effectively avoid destroying the molecular structure of the raw material, thereby avoiding damage to the raw material during the atomization process;

[0023] 3. When compressed air passes through the driving chamber, it impacts the blades of the impeller, causing the impeller to rotate. The rotation of the impeller drives the driving rod to rotate through the main shaft. The cooperation between the driving rod and the waist-shaped hole causes the T-shaped block to reciprocate, driving the filling plate to reciprocate, sucking liquid through the liquid inlet pipe, and then replenishing the liquid into the processing tank through the liquid outlet pipe, thereby completing automatic loading and greatly improving the degree of automation of the device;

[0024] 4. During the oxidation treatment, the liquid is automatically replenished without stopping the machine for replenishing the liquid, which ensures continuous production and greatly improves the processing efficiency;

[0025] 5. The compressed air pump determines the speed of atomization and oxidation, as well as the rotation speed of the impeller, and thus the speed of automatic liquid replenishment, so that the reaction processing speed is related to the liquid replenishment speed, so that the liquid replenishment speed can change with the reaction speed, further improving the degree of automation of the device;

[0026] 6. While the T-shaped block reciprocates, it will also drive the arc plate to reciprocate through the sliding rod, so that the rack reciprocates, driving the gear meshing with it to rotate reciprocatingly, so that the rotating column drives the scraper to reciprocate and scrape the inner wall of the collection tank to prevent the atomized liquid from adhering to the inner wall of the collection tank, thereby improving the collection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of a production device for preparing hydrogen peroxide from raw materials proposed by the present invention;

[0028] Figure 2 This is a schematic diagram of the internal structure of a production device for preparing hydrogen peroxide from raw materials proposed by the present invention;

[0029] Figure 3 for Figure 2 A in the enlarged view;

[0030] Figure 4 This is a schematic diagram of the structure of a liquid replenishing chamber and a cavity in a production device for preparing hydrogen peroxide from raw materials proposed by the present invention;

[0031] Figure 5 This is a schematic diagram of the internal structure of a driving chamber in a production device for preparing hydrogen peroxide from raw materials proposed by the present invention;

[0032] Figure 6 This is a schematic diagram of the structure of functional blocks in a production device for preparing hydrogen peroxide from raw materials proposed by the present invention;

[0033] Figure 7 A schematic diagram of the internal structure of an atomizing chamber in a production device for preparing hydrogen peroxide from raw materials proposed by the present invention;

[0034] Figure 8 for Figure 2 Enlarged view of point B in .

[0035] In the figure: 1. treatment tank; 2. raw material tank; 3. collection tank; 4. functional block; 5. atomization chamber; 6. through chamber; 7. wire mesh; 8. capillary; 9. first inlet pipe; 10. atomization pipe; 11. diverter block; 12. compressed air pump; 13. second inlet pipe; 14. drive chamber; 15. main shaft; 16. impeller; 17. outlet pipe; 18. fixed block; 19. air cavity; 20. discharge hole; 21. oxidation tank; 22. liquid replenishment chamber; 23. replenishing plate; 24. T-shaped block; 25. liquid inlet pipe; 26. liquid outlet pipe; 27. waist-shaped hole; 28. connecting rod; 29. ​​drive rod; 30. cavity; 31. sliding rod; 32. arc plate; 33. rack; 34. gear; 35. rotating column; 36. fixed rod; 37. scraper. DETAILED DESCRIPTION

[0036] Reference Figure 1-7 A production device for preparing hydrogen peroxide from raw materials includes a hollow processing tank 1, a raw material tank 2, and a collecting tank 3. The processing tank 1, the raw material tank 2, and the collecting tank 3 are all provided with tank doors (not shown in the figure), which can be opened to add materials or process the inside. The top wall of the processing tank 1 is penetrated and fixedly connected with a functional block 4, and the upper surface of the processing tank 1 is fixedly connected with a diverter block 11. The diverter block 11 is a hollow structure. The upper surface of the processing tank 1 is fixedly connected with a compressed air pump 12 through a bracket. The input end of the compressed air pump 12 is penetrated and fixedly connected with the diverter block 11 and extends to the inside thereof. The input end of the compressed air pump 12 can be directly connected to air or oxygen, depending on the specific situation. The top wall of the collecting tank 3 is penetrated and fixedly connected with a fixed block 18. The functional block 4 is provided with an atomizing mechanism, and the fixed block 18 is provided with an oxidizing mechanism.

[0037] The atomization mechanism includes an atomization chamber 5, which is opened in the functional block 4. The bottom wall of the atomization chamber 5 is fixedly connected with a metal wire mesh 7. The functional block 4 is penetrated and fixedly connected with a plurality of capillaries 8. The diameter of the capillary 8 is extremely fine, so that after the liquid enters the capillary 8, it will rise to a certain height under the capillary effect and contact with the metal wire mesh 7. The metal wire mesh 7 is a wire mesh with relatively small holes. The capillary 8 connects the atomization chamber 5 with the inside of the treatment tank 1. The functional block 4 is provided with two through chambers 6. The two through chambers 6 are both connected with the atomization chamber 5. The two through chambers 6 are symmetrically opened with respect to the atomization chamber 5. The functional block 4 and the diverter block 11 are jointly penetrated and fixedly connected with a first inlet pipe 9. The first inlet pipe 9 connects the diverter block 11 with one of the through chambers 6. The compressed air pump 12 pumps compressed air into the diverter block 11. A portion of the compressed air enters the through chamber 6 through the first inlet pipe 9. After entering the through chamber 6, the compressed air enters the atomization chamber 5. Due to the change in the through area, the flow rate of the compressed air in the atomization chamber 5 will be further increased. According to the Bernoulli principle, the faster the fluid flow rate, the smaller its pressure. When the compressed air passes through the atomization chamber 5, the pressure in the atomization chamber 5 will be reduced. Due to the change in pressure, the liquid in the capillary 8 passes through the metal mesh 7 under pressure and enters the atomization chamber 5. When the droplets discharged from the capillary 8 pass through the metal mesh 7, they are cut into smaller droplets by the metal mesh 7, thereby atomizing the anthraquinone alcohol. After the anthraquinone alcohol is atomized, it is oxidized, which can greatly increase the contact area between the anthraquinone alcohol and the air, thereby greatly improving the oxidation efficiency.

[0038] It is worth mentioning that the ultrasonic atomizer uses the high-frequency resonance of the ceramic atomizer to break up the liquid molecular structure and produce natural and flowing water mist. Compared with the atomization method using the ultrasonic atomizer, the atomization method using the metal wire mesh 7 cutting is a macroscopic cutting method and will not affect the molecular structure, thus avoiding the damage of the molecular structure by ultrasonic atomization and affecting the subsequent oxidation.

[0039] The oxidation mechanism includes an oxidation trough 21, which is opened in the fixed block 18. The functional block 4 is provided with a driving cavity 14. The functional block 4 and the diverter block 11 are jointly penetrated and fixedly connected with a second inlet pipe 13, and the second inlet pipe 13 connects the diverter block 11 with the driving cavity 14. The fixed block 18 and the functional block 4 are jointly penetrated and fixedly connected with an atomization pipe 10, and the atomization pipe 10 connects the oxidation trough 21 with one of the passage cavities 6. The fixed block 18 and the functional block 4 are jointly penetrated and fixedly connected with an outlet pipe 17. The fixed block 18 is provided with an air cavity 19, and the air outlet pipe 17 connects the driving cavity 14 with the air cavity 19. The fixed block 18 is provided with a plurality of discharge holes 20, and the discharge holes 20 connect the air cavity 19 with the oxidation tank 21. Another part of the compressed air enters the driving cavity 14 through the second inlet pipe 13 and then enters the air cavity 19. Finally, through the setting of the plurality of discharge holes 20, the air entering the air cavity 19 is discharged through the plurality of discharge holes 20, and then contacts the atomized anthraquinone alcohol more evenly, further improving the oxidation efficiency. The atomized anthraquinone alcohol enters the next through cavity 6, and then enters the oxidation tank 21 through the atomizing pipe 10, contacts the evenly discharged air, so that the anthraquinone alcohol contacts and oxidizes with the oxygen in the air to obtain hydrogen peroxide, which falls into the collection tank 3 for storage.

[0040] An automatic liquid replenishing mechanism is arranged in the processing tank 1, and the automatic liquid replenishing mechanism includes a liquid replenishing chamber 22, and the liquid replenishing chamber 22 is arranged in the bottom wall of the processing tank 1. The processing tank 1 and the functional block 4 are rotatably connected with a main shaft 15 through a bearing. One end of the main shaft 15 extends through the driving chamber 14 and is fixedly connected with an impeller 16, and the other end extends through the liquid replenishing chamber 22. A filler plate 23 is sealed and slidably connected in the liquid replenishing chamber 22. A T-shaped block 24 is fixedly connected to the side wall of the filler plate 23 close to the side of the main shaft 15. The T-shaped block 24 is provided with a waist-shaped hole 27. The T-shaped block 24 is slidably connected to a driving rod 29 through the waist-shaped hole 27. A connecting rod 28 is fixedly connected to the side wall of the main shaft 15 located in a section of the liquid replenishing chamber 22, and the connecting rod 28 is fixedly connected to the driving rod 29 (combined with Figure 2 and Figure 4), the raw material tank 2 and the processing tank 1 are both connected with a liquid inlet pipe 25, which connects the raw material tank 2 with the liquid replenishing chamber 22, and the processing tank 1 is connected with a liquid outlet pipe 26, which connects the liquid replenishing chamber 22 with the inside of the processing tank 1. Another part of the compressed air in the diverter block 11 enters the drive chamber 14 through the second inlet pipe 13 and impacts the blades of the impeller 16, so that the impeller 16 rotates, and the rotation of the impeller 16 drives the main shaft 15 to rotate, and the main shaft 15 drives the driving rod 29 to rotate through the connecting rod 28. When the driving rod 29 rotates around the main shaft 15, The sliding in the waist-shaped hole 27 causes the T-shaped block 24 to reciprocate. When the T-shaped block 24 reciprocates, it drives the supplementary plate 23 to reciprocate synchronously. When the supplementary plate 23 moves away from the raw material tank 2, the anthraquinone alcohol in the raw material tank 2 is pumped into the liquid replenishing chamber 22 through the liquid inlet pipe 25. When the supplementary plate 23 moves toward the direction close to the raw material tank 2, the anthraquinone alcohol pumped into the liquid replenishing chamber 22 is pumped into the processing tank 1 through the liquid outlet pipe 26, thereby completing automatic liquid replenishment, greatly improving the automation degree of the device, and there is no need to stop the machine to replenish raw materials, ensuring continuous production and greatly improving processing efficiency.

[0041] It is worth mentioning that the compressed air pump 12 determines the speed of atomization and oxidation, and the compressed air pump 12 also determines the rotation speed of the impeller 16, and the rotation speed of the impeller 16 determines the reciprocating speed of the filling plate 23, thereby determining the speed of automatic liquid replenishment, and then the reaction processing speed is related to the liquid replenishment speed, so that the liquid replenishment speed can change with the reaction speed, further improving the degree of automation of the device.

[0042] Both the liquid inlet pipe 25 and the liquid outlet pipe 26 are provided with a one-way valve. The one-way valve in the liquid inlet pipe 25 only allows liquid to enter the liquid replenishing chamber 22 from the raw material tank 2, and the liquid outlet pipe 26 only allows liquid to enter the processing tank 1 from the liquid replenishing chamber 22.

[0043] A scraping mechanism is provided in the collecting tank 3, and the scraping mechanism includes a cavity 30, and the cavity 30 is opened in the bottom wall of the collecting tank 3. The collecting tank 3 and the processing tank 1 are slidably connected with a plurality of sliding rods 31, one end of the sliding rod 31 extends through the liquid replenishing chamber 22 and is fixedly connected to the side wall of the T-shaped block 24, and the other end extends through the cavity 30 and is fixedly connected with an arc plate 32, and the side wall of the arc plate 32 away from the processing tank 1 is fixedly connected with a rack 33, and the collecting tank 3 is rotatably connected with a rotating column 35 through a bearing, and one end of the rotating column 35 located in the cavity 30 is fixedly connected with a gear 34, and the rack 33 is meshed with the gear 34, and the rotating column 35 is located at a side wall fixed to the inner section of the collecting tank 3. There are multiple fixed rods 36 fixedly connected, and the fixed rods 36 are fixedly connected with scrapers 37. The scrapers 37 are slidably connected to the inner wall of the collection tank 3. When the T-shaped block 24 reciprocates, it will also drive the arc plate 32 to reciprocate through the sliding rod 31, and the arc plate 32 drives the rack 33 to reciprocate. The reciprocating movement of the rack 33 makes the gear 34 reciprocate through the engagement with the gear 34. The reciprocating movement of the gear 34 makes the rotating column 35 reciprocate. The rotating column 35 drives the scrapers 37 to reciprocate through the fixed rods 36 to scrape the inner wall of the collection tank 3, scrape off the liquid attached to the inner wall of the collection tank 3, and avoid it from adhering to the inner wall and being difficult to collect, thereby improving the collection efficiency.

[0044] It should be noted that a plurality of holes (not shown) are provided on the side wall of the collecting tank 3, and the holes are located at the upper part of the collecting tank 3, so as to ensure that the interior of the collecting tank 3 is not in a sealed state, thereby ensuring that the compressed air entering can be discharged smoothly. After the two air flows collide, their speeds are relatively reduced, so that their discharge speed is also reduced accordingly to prevent them from carrying hydrogen peroxide. The hydrogen peroxide liquid produced after oxidation will flow into the bottom of the collecting tank 3 along the rotating column 35 (that is, the rotating column 35 also plays a certain drainage role here).

[0045] The longitudinal cross-sectional area of ​​the through cavity 6 is larger than that of the atomizing cavity 5. When the flow rates are consistent, the flow velocity of the fluid is inversely proportional to its through area. The smaller the through area, the faster the flow velocity. By setting the longitudinal cross-sectional area, when the compressed air enters the atomizing cavity 5 from the through cavity 6, its flow velocity is further increased, thereby better atomizing the liquid.

[0046] The present invention also provides a method for preparing hydrogen peroxide from raw materials, comprising the following steps:

[0047] S1, raw material preparation: prepare dimethyl anthraquinone and hydrogen to be used, and inject dimethyl anthraquinone into the raw material tank 2;

[0048] S2, reduction reaction: the prepared hydrogen is introduced into the raw material tank 2, so that the anthraquinone inside reacts with the hydrogen to generate anthraquinone alcohol, which is stored in the raw material tank 2;

[0049] S3, oxidation reaction: the compressed air pump 12 is turned on, the anthraquinone alcohol in the treatment tank 1 is atomized in the functional block 4, and then enters the oxidation tank 21 of the fixed block 18, and contacts with the air discharged from the discharge hole 20 in countercurrent. When the anthraquinone alcohol contacts the oxygen, it is oxidized back to anthraquinone and generates hydrogen peroxide, which falls into the collection tank 3 for collection;

[0050] S4, separation: the mixture in the collecting tank 3 is separated from the hydrogen peroxide and the anthraquinone by extraction, the hydrogen peroxide is collected, and the separated anthraquinone is collected and reused;

[0051] S5, purification: the crude hydrogen peroxide collected in S4 is adsorbed and filtered to remove unreacted raw materials and by-products to obtain purified hydrogen peroxide.

[0052] In the present invention, dimethylanthraquinone is placed in a raw material tank 2, and hydrogen is introduced into the raw material tank 2 to reduce dimethylanthraquinone to produce anthraquinone alcohol, and then part of the anthraquinone alcohol is injected into the processing tank 1. After the anthraquinone alcohol is injected, the liquid enters the capillary 8 and rises to a certain height under the capillary effect, contacts the metal wire mesh 7, and starts the compressed air pump 12.

[0053] The compressed air pump 12 pumps compressed air into the diverter block 11, and part of the compressed air enters the through chamber 6 through the first inlet pipe 9. After the compressed air enters the through chamber 6, it enters the atomizing chamber 5. Due to the change in the through area, the flow rate of the compressed air in the atomizing chamber 5 will be further increased. According to the Bernoulli principle, the faster the fluid flow rate, the smaller its pressure. When the compressed air passes through the atomizing chamber 5, the pressure in the atomizing chamber 5 will be reduced. Due to the change in pressure, the liquid in the capillary 8 passes through the wire mesh 7 under pressure and enters the atomizing chamber 5. When the droplets discharged from the capillary 8 pass through the wire mesh 7, they are cut into smaller droplets by the wire mesh 7, thereby atomizing the anthraquinone alcohol. The atomized anthraquinone alcohol enters the next through chamber 6 and then enters the oxidation tank 21 through the atomizing pipe 10.

[0054] The other part of the compressed air in the diverter block 11 enters the drive chamber 14 through the second inlet pipe 13, and impacts the blades of the impeller 16, causing the impeller 16 to rotate. Then the compressed air passes through the drive chamber 14 and enters the outlet pipe 17. The compressed air then enters the air chamber 19 through the outlet pipe 17, and is evenly sprayed out through multiple discharge holes 20 to contact the atomized anthraquinone alcohol discharged from the atomizing pipe 10, so that the anthraquinone alcohol is contacted with oxygen in the air for oxidation to obtain hydrogen peroxide, which falls into the collection tank 3 for storage.

[0055] The rotation of the impeller 16 drives the main shaft 15 to rotate, and the main shaft 15 drives the driving rod 29 to rotate through the connecting rod 28. When the driving rod 29 rotates around the main shaft 15, it slides in the waist-shaped hole 27, causing the T-shaped block 24 to reciprocate. When the T-shaped block 24 reciprocates, it drives the filling plate 23 to reciprocate synchronously. When the filling plate 23 moves away from the raw material tank 2, the anthraquinone alcohol in the raw material tank 2 is drawn into the liquid replenishing chamber 22 through the liquid inlet pipe 25. When the filling plate 23 moves toward the direction close to the raw material tank 2, the anthraquinone alcohol drawn into the liquid replenishing chamber 22 is pumped into the processing tank 1 through the liquid outlet pipe 26, thereby completing automatic liquid replenishment.

[0056] While the T-shaped block 24 reciprocates, it also drives the arc plate 32 to reciprocate through the sliding rod 31, and the arc plate 32 drives the rack 33 to reciprocate. The reciprocating motion of the rack 33 meshes with the gear 34, causing the gear 34 to reciprocate. The reciprocating motion of the gear 34 causes the rotating column 35 to reciprocate. The rotating column 35 drives the scraper 37 to reciprocate through the fixed rod 36 to scrape the inner wall of the collection tank 3, scraping off the liquid attached to the inner wall of the collection tank 3 to prevent it from adhering to the inner wall and being difficult to collect.

Claims

1. A production device for preparing hydrogen peroxide from raw materials, comprising a hollow processing tank (1), a raw material tank (2), and a collection tank (3), characterized in that: The top wall of the processing tank (1) is penetrated and fixedly connected with a functional block (4); the upper surface of the processing tank (1) is fixedly connected with a diverter block (11); the diverter block (11) is a hollow structure; the upper surface of the processing tank (1) is fixedly connected with a compressed air pump (12) via a bracket; the input end of the compressed air pump (12) is penetrated and fixedly connected with the diverter block (11) and extends into the interior thereof; the top wall of the collecting tank (3) is penetrated and fixedly connected with a fixed block (18); an atomizing mechanism is arranged in the functional block (4); and an oxidizing mechanism is arranged in the fixed block (18); The atomization mechanism comprises an atomization chamber (5), the atomization chamber (5) is provided in a functional block (4), a metal wire mesh (7) is fixedly connected to the inner bottom wall of the atomization chamber (5), a plurality of capillaries (8) are fixedly connected through the functional block (4), the capillaries (8) connect the atomization chamber (5) with the interior of the treatment tank (1), the functional block (4) is provided with two through chambers (6), both of the two through chambers (6) are connected to the atomization chamber (5), the two through chambers (6) are symmetrically provided with respect to the atomization chamber (5), the functional block (4) and the diverter block (11) are jointly connected through a first inlet pipe (9), the first inlet pipe (9) connects the diverter block (11) with one of the through chambers (6); The oxidation mechanism comprises an oxidation trough (21), the oxidation trough (21) being provided in a fixed block (18), the functional block (4) being provided with a driving chamber (14), the functional block (4) and the diverter block (11) being penetrated and fixedly connected with a second inlet pipe (13), the second inlet pipe (13) connecting the diverter block (11) with the driving chamber (14), the fixed block (18) and the functional block (4) being penetrated and fixedly connected with an atomizing pipe (10), the atomizing pipe (10) connecting the oxidation trough (21) with one of the through chambers (6), and the fixed block (18) and the functional block (4) being penetrated and fixedly connected with an outlet pipe (17); The fixed block (18) is provided with an air cavity (19), the air outlet pipe (17) connects the driving cavity (14) with the air cavity (19), the fixed block (18) is provided with a plurality of discharge holes (20), and the discharge holes (20) connect the air cavity (19) with the oxidation tank (21); An automatic liquid replenishing mechanism is arranged in the processing tank (1), and the automatic liquid replenishing mechanism comprises a liquid replenishing chamber (22). The liquid replenishing chamber (22) is arranged in the bottom wall of the processing tank (1). The processing tank (1) and the functional block (4) are connected to a main shaft (15) through a bearing and are rotatably connected thereto. One end of the main shaft (15) extends through the driving chamber (14) and is fixedly connected to an impeller (16), and the other end extends through the liquid replenishing chamber (22). A filling plate (23) is sealingly and slidably connected to the liquid replenishing chamber (22). A T-shaped block (24) is fixedly connected to the side wall of the filling plate (23) close to the main shaft (15). The T-shaped block (24) ) is provided with a waist-shaped hole (27), the T-shaped block (24) is slidably connected to a driving rod (29) through the waist-shaped hole (27), the side wall of the main shaft (15) located at one end of the liquid replenishing chamber (22) is fixedly connected to a connecting rod (28), the connecting rod (28) is fixedly connected to the driving rod (29), the raw material tank (2) and the processing tank (1) are jointly penetrated and fixedly connected with a liquid inlet pipe (25), the liquid inlet pipe (25) connects the raw material tank (2) with the liquid replenishing chamber (22), the processing tank (1) is penetrated and fixedly connected with a liquid outlet pipe (26), the liquid outlet pipe (26) connects the liquid replenishing chamber (22) with the inside of the processing tank (1).

2. A production device for preparing hydrogen peroxide from raw materials according to claim 1, characterized in that: Both the liquid inlet pipe (25) and the liquid outlet pipe (26) are provided with a one-way valve.

3. A production device for preparing hydrogen peroxide from raw materials according to claim 2, characterized in that: A scraping mechanism is provided in the collection tank (3), the scraping mechanism comprising a cavity (30), the cavity (30) being opened in the bottom wall of the collection tank (3), the collection tank (3) and the processing tank (1) being slidably connected to a plurality of sliding rods (31), one end of the sliding rod (31) extending through the liquid replenishing cavity (22) and being fixedly connected to the side wall of the T-shaped block (24), and the other end extending through the cavity (30) and being fixedly connected to an arc plate (32), the arc plate (32) being away from the processing tank (1). A rack (33) is fixedly connected to a side wall on one side; a rotating column (35) is rotatably connected to the collection tank (3) through a bearing; a gear (34) is fixedly connected to one end of the rotating column (35) located in the cavity (30); the rack (33) meshes with the gear (34); a plurality of fixed rods (36) are fixedly connected to the side wall of one end of the rotating column (35) located inside the collection tank (3); the fixed rods (36) are fixedly connected to a scraper (37); and the scraper (37) is slidably connected to the inner side wall of the collection tank (3).

4. A production device for preparing hydrogen peroxide from raw materials according to claim 3, characterized in that: The longitudinal cross-sectional area of ​​the through cavity (6) is larger than the longitudinal cross-sectional area of ​​the atomization cavity (5).

5. A method for preparing hydrogen peroxide from raw materials using the production device of claim 4, characterized in that: The following steps are involved: S1. Raw material preparation: prepare dimethylanthraquinone and hydrogen to be used, and inject dimethylanthraquinone into the raw material tank (2); S2, reduction reaction: the prepared hydrogen is introduced into the raw material tank (2), so that the anthraquinone inside reacts with the hydrogen to generate anthraquinone alcohol, which is then stored in the raw material tank (2); S3, oxidation reaction: the compressed air pump (12) is turned on, and the anthraquinone alcohol in the treatment tank (1) is atomized in the functional block (4), and then enters the oxidation tank (21) of the fixed block (18), and contacts the air discharged from the discharge hole (20) in countercurrent. When the anthraquinone alcohol contacts the oxygen, it is oxidized back to anthraquinone and hydrogen peroxide is generated. The hydrogen peroxide falls into the collection tank (3) for collection; S4, separation: collecting the mixture in the tank (3) by extraction to separate hydrogen peroxide and anthraquinone, collecting the hydrogen peroxide, and collecting the separated anthraquinone for reuse; S5, purification: the crude hydrogen peroxide collected in S4 is adsorbed and filtered to remove unreacted raw materials and by-products to obtain purified hydrogen peroxide.

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