Fluidized bed hydrogen peroxide production system

Abstract

This utility model relates to the field of fluidized bed hydrogen peroxide production technology and discloses a fluidized bed hydrogen peroxide production system, including a base. A production mechanism is set on the top of the base, and an oxidation mechanism is set on the left side of the production mechanism. The production mechanism includes a fluidized bed reactor, which is fixedly connected to the top of the base. An inlet pipe is fixedly connected to the front bottom of the fluidized bed reactor, and a solenoid valve is fixedly connected to the outside of the inlet pipe. A gas delivery pipe is fixedly connected to the bottom of the fluidized bed reactor. In use, the hydrogen is transported through the production mechanism and connected to the right side of the blower via an external hydrogen delivery pipe. The filter plate inside the protective box can first perform preliminary filtration of the incoming hydrogen to remove larger particulate impurities. The nine activated carbon filter elements set below it can further adsorb harmful components and odors in the gas, effectively avoiding interference from impurities to subsequent reactions and ensuring the purity of the hydrogen peroxide product.

Description

Technical Field

[0001] This utility model relates to the field of fluidized bed hydrogen peroxide production technology, specifically to a fluidized bed hydrogen peroxide production system. Background Technology

[0002] Fluidized bed reactors are widely used in hydrogen peroxide production because they enable efficient gas-solid-liquid three-phase contact. However, existing production systems still have some problems in actual operation: Hydrogen is a key raw material. If the particulate impurities, harmful components and odors it carries are not effectively treated, they will directly interfere with the subsequent hydrogenation reaction, resulting in a decrease in the purity of hydrogen peroxide products and affecting product quality. Traditional filtration devices often use fixed installation for their filter elements. Replacing or cleaning them requires disassembling a large number of connectors, which is cumbersome and time-consuming. This results in excessive downtime for equipment maintenance, reduced production efficiency, and most devices are used in hydrogen transportation without filtration or with only single-stage filtration, which makes it impossible to guarantee the purity of hydrogen peroxide products. If the intermediate products generated by the hydrogenation reaction cannot be delivered to the oxidation stage in a timely and stable manner, material stagnation can easily occur, affecting the overall reaction efficiency. The existing liquid raw material delivery relies heavily on manual operation, which makes it difficult to achieve precise control. Fluctuations in flow rate can easily affect reaction stability and increase the risk of operational errors. Therefore, it is necessary to design a fluidized bed hydrogen peroxide production system to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a fluidized bed hydrogen peroxide production system to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a fluidized bed hydrogen peroxide production system, including a base, a production mechanism on the top of the base, and an oxidation mechanism on the left side of the production mechanism; The production unit includes a fluidized bed reactor, which is fixedly connected to the top of a base. An inlet pipe is fixedly connected to the front bottom of the fluidized bed reactor, and a solenoid valve is fixedly connected to the periphery of the inlet pipe. A gas supply pipe is fixedly connected to the bottom of the fluidized bed reactor, and a protective box is fixedly connected to the top right end of the gas supply pipe. A fixed platform is fixedly connected to the rear side of the protective box, and a blower is fixedly connected to the top of the fixed platform. A connecting pipe is fixedly connected to the top of the blower. An installation frame is fixedly connected inside the protective box, and a filter plate and an activated carbon filter element are slidably connected inside the installation frame. A sealing plate is slidably connected to the front of the protective box, and a fixed shaft is threadedly connected inside the sealing plate. A liquid distributor is fixedly connected to the inner side of the fluidized bed reactor, and a filling pipe is fixedly connected to the top right side of the fluidized bed reactor.

[0005] Preferably, a support frame is fixedly connected to the bottom of the protective box, and the bottom of the support frame is flush with the bottom of the base, so that the protective box can be supported by the support frame.

[0006] Preferably, the bottom of the front end of the connecting pipe is fixedly connected to the top of the protective box, so as to facilitate the delivery of hydrogen to the protective box through the connecting pipe.

[0007] Preferably, the activated carbon filter element is located at the bottom of the filter plate, and nine activated carbon filter elements are provided, which are slidably connected inside the mounting frame to facilitate the filtration of hydrogen through the filter plate and the activated carbon filter elements.

[0008] Preferably, the inner side of the sealing plate is in contact with the filter plate, the mounting frame, the protective box, and the front side of the activated carbon filter element, and is slidably connected to the outer periphery of the front surface of the filter plate. The fixed shaft passes through the inside of the protective box, which facilitates sealing the gaps between the filter plate and the activated carbon filter element and the mounting frame through the sealing plate.

[0009] Preferably, the oxidation mechanism includes a conveying pipe, which is fixedly connected to the top of the fluidized bed reactor. An oxidation tower is fixedly connected to the top left end of the conveying pipe. A load-bearing frame is fixedly connected to the bottom periphery of the oxidation tower. A waste discharge pipe is fixedly connected to the top of the oxidation tower. A guide pipe is fixedly connected to the middle left side of the oxidation tower. An air pump is fixedly connected to the periphery of the conveying pipe. A riser is fixedly connected to the front bottom of the oxidation tower.

[0010] Preferably, the gas pump is fixedly connected to the top of the fluidized bed reactor, so as to facilitate the delivery of the reacted gas to the oxidation tower.

[0011] Compared with the prior art, this utility model provides a fluidized bed hydrogen peroxide production system, which has the following beneficial effects: This fluidized bed hydrogen peroxide production system, through its production mechanism, connects to the right side of the blower via an external hydrogen supply pipeline. Inside the protective enclosure, a filter plate initially filters the incoming hydrogen, removing larger particulate impurities. Nine activated carbon filter elements below further adsorb harmful components and odors from the gas, effectively preventing impurities from interfering with subsequent reactions and ensuring the purity of the hydrogen peroxide product. The filter plate and activated carbon filter elements are installed in the mounting frame using a sliding connection, along with a front-sliding sealing plate, making component replacement and maintenance extremely convenient. Simply unscrew the fixing shaft and open the sealing plate to easily remove and replace the old filter plate or filter element, significantly reducing equipment downtime for maintenance. Furthermore, the liquid inlet pipe at the bottom of the fluidized bed reactor is equipped with a solenoid valve, enabling precise control and automated delivery of liquid raw materials, reducing human error. The top filling pipe provides a convenient channel for adding fine-particle solid catalyst, enhancing the system's operational flexibility.

[0012] This fluidized bed hydrogen peroxide production system, through its oxidation mechanism and the coordinated action of the gas pump and delivery pipe, can transport the gas generated in the fluidized bed reactor to the oxidation tower, ensuring that the intermediate products generated by the reaction enter the next stage for oxidation in a timely manner, reducing material retention and improving overall production efficiency. The load-bearing frame around the oxidation tower enhances the stability of the equipment, and the waste discharge pipe can discharge the tail gas generated by the oxidation reaction in a timely manner, avoiding the accumulation of waste gas in the tower and affecting the reaction efficiency. The guide pipe on the left side facilitates the entry of the oxidized products into the extraction tower for further processing, ensuring the smoothness of the production process. The riser design at the bottom of the oxidation tower can transport air into the oxidation tower. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the rear view structure of this utility model; Figure 3 This is a schematic diagram of the production mechanism structure; Figure 4 This is a schematic diagram of the top structure of the right end of the gas pipeline; Figure 5 This is a schematic diagram of the front structure of the protective box; Figure 6 This is a schematic diagram of the internal structure of the protective box; Figure 7 This is a schematic cross-sectional view of a fluidized bed reactor. Figure 8 This is a schematic diagram of the oxidation mechanism.

[0014] In the diagram: 1. Base; 2. Production mechanism; 3. Oxidation mechanism; 21. Fluidized bed reactor; 22. Solenoid valve; 23. Liquid inlet pipe; 24. Gas delivery pipe; 25. Protective box; 26. Support frame; 27. Fixed platform; 28. Fan; 29. ​​Connecting pipe; 291. Mounting frame; 292. Sealing plate; 293. Fixed shaft; 294. Filter plate; 295. Activated carbon filter element; 296. Filling pipe; 297. Liquid distributor; 31. Delivery pipe; 32. Air pump; 33. Oxidation tower; 34. Support frame; 35. Guide pipe; 36. Waste discharge pipe; 37. Riser. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0017] This utility model provides the following technical solution: Example

[0018] Please see Figure 1-8 This utility model provides a technical solution: a fluidized bed hydrogen peroxide production system, including a base 1, a production mechanism 2 is provided on the top of the base 1, and an oxidation mechanism 3 is provided on the left side of the production mechanism 2; Production unit 2 includes a fluidized bed reactor 21, which is fixedly connected to the top of base 1. A liquid inlet pipe 23 is fixedly connected to the front bottom of the fluidized bed reactor 21, and a solenoid valve 22 is fixedly connected to the periphery of the liquid inlet pipe 23. A gas supply pipe 24 is fixedly connected to the bottom of the fluidized bed reactor 21, and a protective box 25 is fixedly connected to the top right end of the gas supply pipe 24. A fixed platform 27 is fixedly connected to the rear side of the protective box 25, and a blower 28 is fixedly connected to the top of the fixed platform 27. A connecting pipe 29 is fixedly connected to the top of the blower 28. An installation frame 291 is fixedly connected inside the protective box 25, and a filter plate 294 and an activated carbon filter element 295 are slidably connected inside the installation frame 291. A sealing plate 292 is slidably connected to the front side of the protective box 25, and a fixed shaft 293 is threadedly connected inside the sealing plate 292. A liquid distributor 297 is fixedly connected to the inside of the fluidized bed reactor 21, and a filling pipe 296 is fixedly connected to the top right side of the fluidized bed reactor 21.

[0019] A support frame 26 is fixedly connected to the bottom of the protective box 25. The bottom of the support frame 26 is flush with the bottom of the base 1, so that the protective box 25 can be supported by the support frame 26.

[0020] The bottom front end of the connecting pipe 29 is fixedly connected to the top of the protective box 25, so that hydrogen can be delivered into the protective box 25 through the connecting pipe 29.

[0021] The activated carbon filter element 295 is located at the bottom of the filter plate 294, and there are nine activated carbon filter elements 295, which are slidably connected inside the mounting frame 291 to facilitate the filtration of hydrogen through the filter plate 294 and the activated carbon filter element 295.

[0022] The inner side of the sealing plate 292 is in contact with the front side of the filter plate 294, the mounting frame 291, the protective box 25 and the activated carbon filter element 295, and is slidably connected to the outer periphery of the front surface of the filter plate 294. The fixed shaft 293 passes through the inside of the protective box 25, so as to facilitate the sealing of the gap between the filter plate 294 and the activated carbon filter element 295 and the mounting frame 291 by the sealing plate 292. Example

[0023] Please see Figure 1-8 Furthermore, based on Embodiment 1, the oxidation mechanism 3 includes a conveying pipe 31, which is fixedly connected to the top of the fluidized bed reactor 21. An oxidation tower 33 is fixedly connected to the top left end of the conveying pipe 31. A load-bearing frame 34 is fixedly connected to the bottom periphery of the oxidation tower 33. A waste discharge pipe 36 is fixedly connected to the top of the oxidation tower 33. A guide pipe 35 is fixedly connected to the middle left side of the oxidation tower 33. An air pump 32 is fixedly connected to the periphery of the conveying pipe 31. A riser 37 is fixedly connected to the front bottom of the oxidation tower 33.

[0024] The air pump 32 is fixedly connected to the top of the fluidized bed reactor 21, so that the gas after the reaction can be transported to the oxidation tower 33 through the air pump 32.

[0025] In actual operation, when this device is used, fine-particle solid catalyst, such as palladium catalyst, is first delivered into the fluidized bed reactor 21 through the external catalyst delivery pipe 31 connected to the injection pipe 296. The hydrogen is then delivered to the right side of the blower 28 through the external hydrogen delivery pipe 29. When the hydrogen is delivered to the protective box 25 through the connecting pipe 29, the filter plate 294 inside the protective box 25 can first perform preliminary filtration on the incoming hydrogen to remove larger particulate impurities. The nine activated carbon filter elements 295 set below it can further adsorb harmful components and odors in the gas, effectively avoiding the interference of impurities on subsequent reactions and ensuring the purity of the hydrogen peroxide product. When the filtered hydrogen enters the fluidized bed reactor 21 through the gas delivery pipe 24, it is connected to the liquid inlet pipe 23 through an external pipe. An organic solution containing the working carrier, mainly alkyl anthraquinone, is injected from the bottom of the fluidized bed reactor 21. The hydrogen flows upward, causing the fine particulate solid catalyst in the fluidized bed reactor 21 to be in a suspended and violently moving fluidized state. The anthraquinone in the working solution reacts with the hydrogen on the catalyst surface to generate hydrogen anthraquinone. The working solution containing HAQ after the reaction is transported to the oxidation tower 33 by the gas pump 32 and the delivery pipe 31. The riser 37 at the bottom of the oxidation tower 33 is connected to the external air delivery pipe, which can supply air to the oxidation tower 33. The working solution containing HAQ enters the oxidation tower 33, and air is introduced into the oxidation tower 33. HAQ is oxidized by the oxygen in the air to regenerate anthraquinone AQ, and hydrogen peroxide, the target product, is generated in the process. The exhaust gas after the reaction, mainly nitrogen and unreacted oxygen, is discharged from the waste discharge pipe 36 at the top of the tower. It is connected to the guide pipe 35 through an external comfort device, so that the working liquid containing H2O2 and AQ can be introduced into the extraction tower for extraction and separation to obtain hydrogen peroxide. The filter plate 294 and activated carbon filter element 295 are installed in the mounting frame 291 by a sliding connection. With the front sliding connection of the sealing plate 292, the replacement and maintenance of the components are extremely convenient. Simply unscrew the fixed shaft 293 and open the sealing plate 292 to easily pull out the old filter plate 294 or filter element for replacement, which greatly shortens the equipment downtime for maintenance.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A fluidized bed hydrogen peroxide production system, comprising a base (1), characterized in that: The base (1) is provided with a production mechanism (2) on the top, and an oxidation mechanism (3) is provided on the left side of the production mechanism (2). The production unit (2) includes a fluidized bed reactor (21), which is fixedly connected to the top of the base (1). A liquid inlet pipe (23) is fixedly connected to the front bottom of the fluidized bed reactor (21). A solenoid valve (22) is fixedly connected to the periphery of the liquid inlet pipe (23). A gas supply pipe (24) is fixedly connected to the bottom of the fluidized bed reactor (21). A protective box (25) is fixedly connected to the top right end of the gas supply pipe (24). A fixed platform (27) is fixedly connected to the rear side of the protective box (25). A fan (28) is fixedly connected to the top of the fixed platform (27). A connecting pipe (29) is fixedly connected to the top of the fan (28). The protective box (25) is fixedly connected to an installation frame (291), the installation frame (291) is slidably connected to a filter plate (294), the installation frame (291) is slidably connected to an activated carbon filter element (295), the front side of the protective box (25) is slidably connected to a sealing plate (292), the sealing plate (292) is threadedly connected to a fixed shaft (293), the inside of the fluidized bed reactor (21) is fixedly connected to a liquid distributor (297), and the top right side of the fluidized bed reactor (21) is fixedly connected to a filling pipe (296).

2. The fluidized bed hydrogen peroxide production system according to claim 1, characterized in that: The bottom of the protective box (25) is fixedly connected to a support frame (26), and the bottom of the support frame (26) is flush with the bottom of the base (1).

3. The fluidized bed hydrogen peroxide production system according to claim 1, characterized in that: The front end of the connecting pipe (29) is fixedly connected to the top of the protective box (25).

4. The fluidized bed hydrogen peroxide production system according to claim 1, characterized in that: The activated carbon filter element (295) is located at the bottom of the filter plate (294), and there are nine activated carbon filter elements (295), which are slidably connected to the inside of the mounting frame (291).

5. The fluidized bed hydrogen peroxide production system according to claim 1, characterized in that: The inner side of the sealing plate (292) is in contact with the front side of the filter plate (294), the mounting frame (291), the protective box (25) and the activated carbon filter element (295), and is slidably connected to the outer periphery of the front surface of the filter plate (294). The fixed shaft (293) passes through the inside of the protective box (25).

6. The fluidized bed hydrogen peroxide production system according to claim 1, characterized in that: The oxidation mechanism (3) includes a conveying pipe (31), which is fixedly connected to the top of the fluidized bed reactor (21). An oxidation tower (33) is fixedly connected to the top left end of the conveying pipe (31). A load-bearing frame (34) is fixedly connected to the bottom periphery of the oxidation tower (33). A waste discharge pipe (36) is fixedly connected to the top of the oxidation tower (33). A guide pipe (35) is fixedly connected to the middle left side of the oxidation tower (33). An air pump (32) is fixedly connected to the periphery of the conveying pipe (31). A riser (37) is fixedly connected to the front bottom of the oxidation tower (33).

7. The fluidized bed hydrogen peroxide production system according to claim 6, characterized in that: The air pump (32) is fixedly connected to the top of the fluidized bed reactor (21).

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