Hydrogen peroxide extraction equipment

Abstract

The utility model discloses hydrogen peroxide extraction equipment, relates to the technical field of hydrogen peroxide extraction, and adopts the technical scheme that the hydrogen peroxide extraction equipment comprises an extraction tower, the top end of the extraction tower is communicated with a liquid inlet pipe I and a liquid outlet pipe II, and the bottom end of the extraction tower is communicated with a liquid outlet pipe I and a liquid inlet pipe II which respectively correspond to the liquid inlet pipe I and the liquid outlet pipe II; a plurality of groups of sieve plate assemblies are arranged in the extraction tower, and each sieve plate assembly comprises a primary dispersion layer, a turbulence strengthening layer and an anti-blocking stabilizing layer which are sequentially arranged from top to bottom. According to the utility model, a progressive dispersion system of coarse separation, fine separation and steady flow is realized by adopting the three-stage combined differential sieve plate assembly, so that the contact area of two phases is increased, and the mass transfer efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen peroxide extraction technology, and more specifically, to a hydrogen peroxide extraction device. Background Technology

[0002] Hydrogen peroxide, with the chemical formula H₂O₂, is commonly known as hydrogen peroxide because it contains two oxygen atoms. It is a colorless and transparent liquid and a strong oxidizing agent. Its aqueous solution is suitable for medical wound disinfection, environmental disinfection, and food disinfection. Under normal circumstances, it decomposes into water and oxygen, but the decomposition rate is extremely slow. The way to speed up the reaction is to add a catalyst—manganese dioxide—or to irradiate it with short-wave radiation. After decomposition, it produces oxygen and water. It is a key point in the laboratory preparation of oxygen in junior high school chemistry. However, hydrogen peroxide is also a carcinogen listed by the World Health Organization.

[0003] In the current technology, the anthraquinone process is widely used in the production of hydrogen peroxide. This process is relatively mature and has achieved large-scale industrial production. It mainly separates hydrogen peroxide from the working liquid through an extraction tower. The tower mostly uses sieve plates or packing to promote the contact between the two phases. However, the traditional sieve plates have a single pore size and arrangement, which leads to uneven dispersion, unsatisfactory droplet size distribution, and insufficient contact area, thus affecting the extraction effect.

[0004] Therefore, a hydrogen peroxide extraction device is needed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a hydrogen peroxide extraction device to solve the problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A hydrogen peroxide extraction device includes an extraction tower. The top of the extraction tower is connected to an inlet pipe and an outlet pipe, and the bottom of the extraction tower is connected to an outlet pipe and an inlet pipe, which are respectively corresponding to the inlet pipe and the outlet pipe. The extraction tower is provided with several sets of sieve plate assemblies. The sieve plate assembly includes a primary dispersion layer, a turbulence enhancement layer and an anti-clogging stabilization layer arranged from top to bottom.

[0008] The technical solution of this utility model is further configured as follows: the primary dispersion layer is provided with a plurality of irregularly shaped holes that penetrate it; the turbulence enhancement layer is provided with a plurality of through holes that penetrate it; the top surface of the turbulence enhancement layer is provided with a plurality of flow guiding protrusions; the anti-clogging stabilization layer is provided with a plurality of honeycomb holes that penetrate it; and the inner wall of the honeycomb holes is coated with an anti-sticking coating.

[0009] The technical solution of this utility model is further configured such that: the aspect ratio of the irregular hole is 2:1 and a plurality of the irregular holes are distributed in a triangular pattern, and the diameter of the through hole located in the edge region of the turbulence enhancement layer is larger than the diameter of the through hole located in the center region of the turbulence enhancement layer.

[0010] The technical solution of this utility model is further configured as follows: the primary dispersion layer, the turbulence enhancement layer and the anti-clogging stabilization layer are all provided with corresponding notches, and a baffle located at the notch is fixedly connected to the primary dispersion layer. The baffles in the three adjacent sets of the sieve plate assemblies are parallel to the three sides of the triangle formed by the plurality of irregular holes.

[0011] The technical solution of this utility model is further configured as follows: the primary dispersion layer is fixedly connected to the inner wall of the extraction tower, the primary dispersion layer is connected to the turbulence enhancement layer and the anti-clogging stabilization layer through a telescopic rod, and the extraction tower is provided with a lifting component located below the sieve plate assembly.

[0012] The technical solution of this utility model is further configured as follows: the telescopic rod includes an inner rod and a sleeve rod, the sleeve rod penetrates the turbulence enhancement layer and its top end is fixedly connected to the turbulence enhancement layer, the inner rod extends out from the sleeve rod and its top end is fixedly connected to the bottom surface of the primary dispersion layer, a groove is provided on the top surface of the anti-clogging stabilizing layer, and the bottom end of the sleeve rod is slidably connected to the groove.

[0013] The technical solution of this utility model is further configured as follows: the lifting assembly includes a fixed frame, a driven member, and an active member. The fixed frame is fixedly connected to the inner wall of the extraction tower. The driven member and the active member are meshing bevel gears, and the driven member is rotatably connected to the fixed frame. An internally threaded rod is fixedly connected to the driven member. The top end of the internally threaded rod penetrates the fixed frame. An externally threaded rod extending from the inside of the internally threaded rod is threadedly connected to the internally threaded rod. The top end of the externally threaded rod is fixedly connected to the anti-clogging stabilizing layer. A connecting rod that horizontally penetrates the fixed frame and the extraction tower is fixedly connected to the active member. A control wheel is fixedly connected to the end of the connecting rod away from the active member.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] By setting up a primary dispersion layer, a turbulence enhancement layer, and an anti-clogging stabilizing layer, the primary dispersion layer can pre-disperse the working fluid into droplet clusters. The turbulence enhancement layer further refines the droplets while inducing swirling flow, achieving uniform droplet dispersion and thus increasing the contact area between the two phases to ensure the extraction effect of hydrogen peroxide. The anti-clogging stabilizing layer prevents crystal adhesion through an anti-stick coating, thereby extending the continuous operation cycle of the equipment.

[0016] By setting up lifting components, the turbulence enhancement layer and the anti-clogging stabilization layer can move toward or away from the primary dispersion layer, thereby achieving the effect of dynamically adjusting the spacing to adapt to different flow conditions, avoid the decrease in extraction efficiency when the flow fluctuates, and the overall adjustment operation is relatively simple, requiring only the rotation of the control wheel. The cross-sectional area of ​​the fixed frame is also relatively small compared to the sieve plate assembly, which can minimize the impact on the extraction efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a schematic diagram of the structure of the sieve plate assembly and the lifting assembly in this utility model. Figure 1 ;

[0021] Figure 5 This is a schematic diagram of the structure of the sieve plate assembly and the lifting assembly in this utility model. Figure 2 .

[0022] In the diagram: 1. Extraction tower; 2. Inlet pipe 1; 3. Outlet pipe 2; 4. Outlet pipe 1; 5. Inlet pipe 2; 6. Primary dispersion layer; 7. Turbulence enhancement layer; 8. Anti-clogging stabilizing layer; 9. Irregularly shaped hole; 10. Through hole; 11. Guide protrusion; 12. Honeycomb hole; 13. Notch; 14. Baffle; 15. Inner rod; 16. Sleeve rod; 17. Groove; 18. Fixing frame; 19. Driven component; 20. Driving component; 21. Internally threaded rod; 22. Externally threaded rod; 23. Connecting rod; 24. Control wheel; 25. Guide rod; 26. Dovetail groove; 27. Dovetail block. Detailed Implementation

[0023] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model. Example

[0024] refer to Figures 1 to 5As shown, this utility model provides a hydrogen peroxide extraction device, including an extraction tower 1. The top of the extraction tower 1 is connected to an inlet pipe 2 and an outlet pipe 3, and the bottom of the extraction tower 1 is connected to an outlet pipe 4 and an inlet pipe 5, which are respectively connected to the inlet pipe 2 and the outlet pipe 3. The extraction tower 1 is provided with several sets of sieve plate assemblies. The sieve plate assembly includes a primary dispersion layer 6, a turbulence enhancement layer 7, and an anti-clogging stabilizing layer 8 arranged sequentially from top to bottom. In use, the oxidizing liquid is pressurized by a pump and fed into the extraction tower 1 through the inlet pipe 5. The demineralized water is pressurized by a pump and fed into the extraction tower 1 through the inlet pipe 2. At this time, the oxidizing liquid containing hydrogen peroxide floats upward through the several sets of sieve plate assemblies, in which the hydrogen peroxide content continuously decreases. The demineralized water flows downward through the several sets of sieve plate assemblies, in which the hydrogen peroxide content continuously increases. The primary dispersion layer 6, the turbulence enhancement layer 7, and the anti-clogging stabilizing layer 8 in the sieve plate assembly are used to improve the two-phase mass transfer rate.

[0025] refer to Figures 1 to 5 As shown, the primary dispersion layer 6 has several irregularly shaped holes 9 that penetrate it. The diameter of the irregularly shaped holes 9 is 3-5 mm and its length-to-diameter ratio is 2:1. The irregularly shaped holes 9 are distributed in a triangular pattern. The turbulence enhancement layer 7 has several through holes 10 that penetrate it. The diameter of the through holes 10 located in the edge region of the turbulence enhancement layer 7 is larger than the diameter of the through holes 10 located in the center region of the turbulence enhancement layer 7. Specifically, the diameter of the through holes in the center region is 1.5 mm, and the diameter of the through holes in the edge region is 2.5 mm. The top surface of the turbulence enhancement layer 7 has several... The dry flow guide protrusion 11 has several honeycomb holes 12 through it on the anti-clogging stabilizing layer 8. The diameter of the honeycomb holes 12 is 2mm and the inner wall of the holes is coated with an anti-stick coating. The anti-stick coating is specifically a PTFE coating. The primary dispersion layer 6, the turbulence enhancement layer 7 and the anti-clogging stabilizing layer 8 are all provided with corresponding notches 13. The primary dispersion layer 6 is fixedly connected with a baffle 14 located at the notch 13. The baffles 14 in the three adjacent sets of sieve plate assemblies are parallel to the three sides of the triangle formed by several irregular holes 9.

[0026] Through the above structural design, the primary dispersion layer 6 can disperse the liquid into a group of smaller droplets. The turbulence enhancement layer 7 can enhance the flow guidance effect between the primary dispersion layer 6 and the turbulence enhancement layer 7 by using the flow guide protrusions 11, allowing the droplets to pass through the through holes 10 to achieve a further refinement effect. At the same time, the difference in the pore size between the central and edge regions creates a difference in the flow velocity between the central and edge regions, thereby enhancing the turbulence effect and allowing for more sufficient contact between the two phases. The anti-clogging stabilizing layer 8 is used to prevent crystal adhesion during this process through an anti-stick coating, thereby extending the continuous operation cycle of the equipment. Furthermore, the baffles 14 set in the three adjacent sets of sieve plate assemblies induce swirling flow through their position setting, further promoting contact between the two phases and improving the extraction effect.

[0027] refer to Figures 1 to 5As shown, the primary dispersion layer 6 is fixedly connected to the inner wall of the extraction tower 1. The primary dispersion layer 6 is connected to the turbulence enhancement layer 7 and the anti-clogging stabilizing layer 8 via a telescopic rod. The extraction tower 1 is equipped with a lifting assembly located below the sieve plate assembly. The telescopic rod includes an inner rod 15 and a sleeve rod 16. The sleeve rod 16 penetrates the turbulence enhancement layer 7 and its top end is fixedly connected to the turbulence enhancement layer 7. The inner rod 15 extends out from the sleeve rod 16 and its top end is fixedly connected to the bottom surface of the primary dispersion layer 6. A groove 17 is formed on the top surface of the anti-clogging stabilizing layer 8. The bottom end of the sleeve rod 16 is slidably connected to the groove 17 via a dovetail block 27. The anti-clogging stabilizing layer 8 is also provided with a dovetail groove 26 that communicates with the groove 17 and is used to accommodate the dovetail block 27. A blocking component can be installed at the top of the dovetail groove 26 with screws to prevent the sleeve rod 16 from detaching from the anti-clogging stabilizing layer 8. The lifting assembly... The component includes a fixed frame 18, a driven member 19, and a driven member 20. The fixed frame 18 is fixedly connected to the inner wall of the extraction tower 1. The driven member 19 and the driven member 20 are meshing bevel gears, and the driven member 19 is rotatably connected to the fixed frame 18. An internally threaded rod 21 is fixedly connected to the driven member 19. The top end of the internally threaded rod 21 passes through the fixed frame 18. An externally threaded rod 22 extending from the inside of the internally threaded rod 21 is threadedly connected to the internally threaded rod 21. The top end of the externally threaded rod 22 is fixedly connected to the anti-clogging stabilizing layer 8. Two symmetrically arranged guide rods 25 can also be fixedly connected to the bottom surface of the anti-clogging stabilizing layer 8. The two guide rods 25 pass through the top end of the fixed frame 18. A connecting rod 23 that horizontally passes through the fixed frame 18 and the extraction tower 1 is fixedly connected to the driven member 20. A control wheel 24 is fixedly connected to the end of the connecting rod 23 away from the driven member 20.

[0028] With the above structure, when the control wheel 24 is rotated, the connecting rod 23 and the driving member 20 rotate accordingly, which in turn drives the driven member 19 and the internal threaded rod 21 fixed on the driven member 19 to rotate. At this time, since the external threaded rod 22 is fixed to the anti-clogging stabilizing layer 8, it cannot rotate. As a result, the external threaded rod 22 gradually retracts into the internal threaded rod 21, causing the anti-clogging stabilizing layer 8 to move downward. During the downward movement of the anti-clogging stabilizing layer 8, the dovetail block 27 slides in the dovetail groove 26 until it slides to the maximum stroke position. At this time, the anti-clogging stabilizing layer 8 will drive the turbulence enhancement layer 7 to move downward through the sleeve rod 16. At this time, the inner rod 15 gradually extends out from the sleeve rod 16. This method achieves the effect of dynamically adjusting the spacing to adapt to different flow conditions, avoid the decrease in extraction efficiency when the flow fluctuates, and the overall adjustment operation is relatively simple.

[0029] refer to Figures 1 to 5As shown above, by setting the primary dispersion layer 6, the turbulence enhancement layer 7, and the anti-clogging stabilizing layer 8, the primary dispersion layer 6 can pre-disperse the working fluid into droplet groups, while the turbulence enhancement layer 7 further refines the droplets while inducing swirling flow, achieving uniform droplet dispersion, thereby increasing the contact area between the two phases and ensuring the extraction effect of hydrogen peroxide. In this process, the anti-clogging stabilizing layer 8 prevents crystals from adhering to the inner wall through an anti-stick coating, thereby extending the continuous operation cycle of the equipment.

[0030] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions that fall within the concept of the present utility model are within the protection scope of the present utility model. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present utility model should also be considered within the protection scope of the present utility model.

Claims

1. A hydrogen peroxide extraction device, comprising an extraction tower (1), characterized in that: The top of the extraction tower (1) is connected to an inlet pipe (2) and an outlet pipe (3). The bottom of the extraction tower (1) is connected to an outlet pipe (4) and an inlet pipe (5) corresponding to the inlet pipe (2) and the outlet pipe (3), respectively. The extraction tower (1) is provided with several sets of sieve plate assemblies. The sieve plate assembly includes a primary dispersion layer (6), a turbulence enhancement layer (7), and an anti-clogging stabilizing layer (8) arranged sequentially from top to bottom.

2. The hydrogen peroxide extraction device according to claim 1, characterized in that: The primary dispersion layer (6) has several irregular holes (9) that penetrate it, the turbulence enhancement layer (7) has several through holes (10) that penetrate it, the top surface of the turbulence enhancement layer (7) has several flow guiding protrusions (11), the anti-clogging stabilizing layer (8) has several honeycomb holes (12) that penetrate it, and the inner wall of the honeycomb holes (12) is coated with an anti-stick coating.

3. The hydrogen peroxide extraction device according to claim 2, characterized in that: The aspect ratio of the irregular holes (9) is 2:1 and several of the irregular holes (9) are distributed in a triangular pattern. The diameter of the through holes (10) located in the edge region of the turbulence enhancement layer (7) is larger than the diameter of the through holes (10) located in the center region of the turbulence enhancement layer (7).

4. The hydrogen peroxide extraction device according to claim 3, characterized in that: The primary dispersion layer (6), the turbulence enhancement layer (7), and the anti-blocking stabilization layer (8) are all provided with corresponding notches (13). A baffle (14) located at the notch (13) is fixedly connected to the primary dispersion layer (6). The baffles (14) in the three adjacent sets of the sieve plate assemblies are parallel to the three sides of the triangle formed by the several irregular holes (9).

5. The hydrogen peroxide extraction device according to claim 1, characterized in that: The primary dispersion layer (6) is fixedly connected to the inner wall of the extraction tower (1). The primary dispersion layer (6) is connected to the turbulence enhancement layer (7) and the anti-clogging stabilization layer (8) through a telescopic rod. The extraction tower (1) is provided with a lifting assembly located below the sieve plate assembly.

6. The hydrogen peroxide extraction device according to claim 5, characterized in that: The telescopic rod includes an inner rod (15) and a sleeve rod (16). The sleeve rod (16) penetrates the turbulence enhancement layer (7) and its top end is fixedly connected to the turbulence enhancement layer (7). The inner rod (15) extends out from the sleeve rod (16) and its top end is fixedly connected to the bottom surface of the primary dispersion layer (6). A groove (17) is provided on the top surface of the anti-blocking stabilizing layer (8), and the bottom end of the sleeve rod (16) is slidably connected to the groove (17).

7. The hydrogen peroxide extraction device according to claim 5, characterized in that: The lifting assembly includes a fixed frame (18), a driven member (19), and an active member (20). The fixed frame (18) is fixedly connected to the inner wall of the extraction tower (1). The driven member (19) and the active member (20) are meshing bevel gears, and the driven member (19) is rotatably connected to the fixed frame (18). An internal threaded rod (21) is fixedly connected to the driven member (19). The top end of the internal threaded rod (21) passes through the fixed frame (18). An external threaded rod (22) extending from the inside of the internal threaded rod (21) is threadedly connected to the internal threaded rod (21). The top end of the external threaded rod (22) is fixedly connected to the anti-clogging stabilizing layer (8). A connecting rod (23) that horizontally passes through the fixed frame (18) and the extraction tower (1) is fixedly connected to the active member (20). A control wheel (24) is fixedly connected to the end of the connecting rod (23) away from the active member (20).

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