Multiphase advanced oxidation tower

Abstract

This utility model relates to a multiphase advanced oxidation tower, belonging to the field of industrial waste gas treatment technology. It includes a reaction tower body, a cover plate detachably connected to the top of the reaction tower body, a packing structure disposed inside the reaction tower body, and a liquid conveying mechanism disposed outside the reaction tower body. The top of the cover plate has an air inlet structure extending into the interior of the reaction tower body, and the top of the cover plate also has a rotating spraying mechanism extending into the interior of the reaction tower body. The exterior of the reaction tower body has a material feeding mechanism extending into its interior. This multiphase advanced oxidation tower pumps the oxidant solution into the spray nozzle through the liquid conveying mechanism and sprays it from the nozzle in a rotating manner. This creates a counter-current flow with the waste gas delivered to the annular spray nozzle through the air inlet pipe, extending the reaction time and improving the degradation efficiency. Simultaneously, a servo motor drives the material feeding plate to rotate, tapping the gas-liquid mixture on the surface of the packing body to prevent packing blockage, ensuring a more complete reaction, improving packing regeneration efficiency, and extending the replacement cycle.

Description

Technical Field

[0001] This utility model relates to the field of industrial waste gas treatment technology, specifically to a multiphase advanced oxidation tower. Background Technology

[0002] Organic waste gas mainly includes carbon hydrocarbons, benzene and benzene series compounds, alcohols, ketones, phenols, aldehydes, esters, amines, nitriles, cyanides and other organic compounds. Controlling the emission of volatile organic waste gas is a major environmental protection task. To this end, relevant departments have not hesitated to shut down some polluting production enterprises and have promoted production enterprises to increase the construction of environmental protection facilities to ensure that organic waste gas emissions meet standards. However, the current situation of organic waste gas emission treatment is still chaotic.

[0003] Currently, conventional technologies for treating high-concentration organic waste gas mainly include activated carbon adsorption, low-temperature plasma, photocatalytic oxidation, biodegradation, and adsorption-concentration-catalytic combustion. Existing multiphase advanced oxidation towers mostly employ a structure of fixed nozzle spraying and static packing adsorption. However, the spraying range of fixed nozzles is limited, and the oxidant-rich spray liquid can only contact the upward-flowing waste gas in a localized area. This easily leads to incomplete gas-liquid oxidation reactions, low degradation efficiency of organic pollutants, and the organic pollutants adsorbed on the packing surface rely on the penetration of the spray liquid or the airflow to carry the oxidant to contact. Under a static structure, the contact probability between the oxidant and the pollutants on the packing surface is low, easily causing the packing to become saturated and unable to be regenerated in time, requiring frequent shutdowns to replace the packing, increasing operation and maintenance costs. Therefore, the multiphase advanced oxidation tower is proposed to solve the problems mentioned above. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a multiphase advanced oxidation tower, which has advantages such as efficient gas-liquid mixing and dynamic regeneration of packing material, thus solving the problems mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A multiphase advanced oxidation tower includes a reaction tower body, a cover plate detachably connected to the top of the reaction tower body, a packing structure disposed inside the reaction tower body, and a liquid conveying mechanism disposed outside the reaction tower body. The top of the cover plate is provided with an air inlet structure extending into the interior of the reaction tower body, and the top of the cover plate is provided with a rotating spraying mechanism extending into the interior of the reaction tower body. The exterior of the reaction tower body is provided with a material feeding mechanism extending into its interior.

[0007] The rotary spraying mechanism includes a rotating sleeve rotatably connected inside the cover plate and a drive motor fixedly installed on the top of the cover plate. A connecting pipe is fixedly connected inside the rotating sleeve, a spray pipe is fixedly connected to the bottom of the connecting pipe, a nozzle is fixedly connected to the bottom of the spray pipe, a driven gear is fixedly connected to the outside of the connecting pipe, and a transmission gear meshing with the driven gear is fixedly connected to the output shaft of the drive motor.

[0008] The feeding mechanism includes a servo motor fixedly installed outside the reaction tower body, a rotating shaft fixedly connected to the output shaft of the servo motor, a rotating roller fixedly connected to the outside of the rotating shaft, and a feeding plate fixedly connected to the outside of the rotating roller.

[0009] Furthermore, there are multiple nozzles, which are distributed at equal intervals at the bottom of the nozzle pipe. Both the nozzle pipe and the nozzles are rotatably connected to the interior of the reaction tower body, and a bearing sleeve is rotatably connected to the top of the connecting pipe.

[0010] Furthermore, the infusion mechanism includes a storage tank disposed outside the reaction tower body, a delivery pump is fixedly installed outside the storage tank, an extraction pipe is fixedly connected between the input end of the delivery pump and the storage tank, and a delivery pipe is fixedly connected between the delivery pump and the bearing sleeve.

[0011] Furthermore, the rotating shaft, rotating roller, and feeding plate are all rotatably connected to the interior of the reaction tower body, and the outer diameter of the feeding plate is adapted to the inner diameter of the reaction tower body.

[0012] Furthermore, there are four material feeding plates, which are arranged in a ring shape inside the reaction tower body and located on the surface of the packing structure.

[0013] Furthermore, the packing structure includes an installation box that is fixedly connected to the interior of the reaction tower body, and the packing body is slidably connected inside the installation box.

[0014] Furthermore, the air intake structure includes an air intake pipe fixedly connected to the top of the cover plate and an annular nozzle fixedly connected to the inner wall of the reaction tower body. A flexible hose is fixedly connected between the air intake pipe and the annular nozzle, and the annular nozzle is located outside the nozzle and the spray nozzle.

[0015] Furthermore, a gas outlet pipe and a water outlet pipe are fixedly connected to one side of the bottom end of the reaction tower body, with the water outlet pipe located below the gas outlet pipe.

[0016] Compared with the prior art, the present invention provides a multiphase advanced oxidation tower, which has the following beneficial effects:

[0017] 1. This multiphase advanced oxidation tower uses a liquid storage tank of the liquid delivery mechanism to pump the oxidant solution through a delivery pump into the bearing sleeve via a delivery pipe, then into the spray nozzle through a connecting pipe, and finally sprayed out from the nozzle. Simultaneously, the drive motor drives the driven gear to rotate through the transmission gear, causing the rotating sleeve, connecting pipe, spray nozzle, and nozzle to rotate synchronously, realizing the rotational spraying of the oxidant solution, expanding the spray range, increasing the contact area between the oxidant and the waste gas, and significantly improving the gas-liquid mixing efficiency. The inlet pipe delivers the waste gas to the annular spray nozzle through a hose. The annular spray nozzle evenly releases the waste gas into the interior of the reaction tower body. At the same time, the rotating nozzle sprays the oxidant solution, forming a counter-current with the waste gas released from the annular spray nozzle. This combination allows the waste gas and oxidant to fully contact each other during the ascent, prolonging the reaction time and improving the degradation efficiency of organic pollutants.

[0018] 2. This multiphase advanced oxidation tower is driven by a servo motor to rotate the rotating shaft, rollers, and feeding plates. The four annularly distributed feeding plates rotate inside the packing structure's mounting box, continuously tapping the gas-liquid mixture on the surface of the packing body. This combination not only prevents the packing body from clogging but also allows the gas-liquid mixture to contact the packing surface more evenly, promoting the full reaction between the organic matter adsorbed on the packing and the oxidant, thereby improving the packing regeneration efficiency and extending the packing replacement cycle. Attached Figure Description

[0019] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0021] Figure 3 This is a three-dimensional structural view of the rotary spraying mechanism of this utility model;

[0022] Figure 4 This is a three-dimensional structural view of the material feeding mechanism of this utility model;

[0023] Figure 5 This utility model Figure 2 A magnified structural diagram of structure A is shown.

[0024] In the diagram: 1. Reactor tower body; 2. Cover plate; 3. Packing structure; 31. Mounting box; 32. Packing body; 4. Liquid delivery mechanism; 41. Storage tank; 42. Delivery pump; 43. Delivery pipe; 5. Rotary spraying mechanism; 51. Rotating sleeve; 52. Driven gear; 53. Connecting pipe; 54. Bearing sleeve; 55. Spray pipe; 56. Nozzle; 57. Drive motor; 58. Transmission gear; 6. Air inlet structure; 61. Air inlet pipe; 62. Annular spray pipe; 63. Hose; 7. Material feeding mechanism; 71. Servo motor; 72. Rotating shaft; 73. Rotating roller; 74. Material feeding plate; 8. Air outlet pipe; 9. Water outlet pipe. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1 to 5 The multiphase advanced oxidation tower in this embodiment includes a reaction tower body 1, a cover plate 2 detachably connected to the top of the reaction tower body 1, a packing structure 3 disposed inside the reaction tower body 1, and a liquid conveying mechanism 4 disposed outside the reaction tower body 1. The top of the cover plate 2 is provided with an air inlet structure 6 extending into the interior of the reaction tower body 1, and the top of the cover plate 2 is provided with a rotating spraying mechanism 5 extending into the interior of the reaction tower body 1. The exterior of the reaction tower body 1 is provided with a material feeding mechanism 7 extending into its interior.

[0027] The rotary spraying mechanism 5 includes a rotating sleeve 51 rotatably connected inside the cover plate 2 and a drive motor 57 fixedly installed on the top of the cover plate 2. A connecting pipe 53 is fixedly connected inside the rotating sleeve 51. A spray pipe 55 is fixedly connected to the bottom of the connecting pipe 53. A nozzle 56 is fixedly connected to the bottom of the spray pipe 55. A driven gear 52 is fixedly connected to the outside of the connecting pipe 53. A transmission gear 58 that meshes with the driven gear 52 is fixedly connected to the output shaft of the drive motor 57.

[0028] Specifically, there are multiple nozzles 56, which are distributed at equal intervals at the bottom of the nozzle 55. Both the nozzle 55 and the nozzles 56 are rotatably connected to the inside of the reaction tower body 1, and a bearing sleeve 54 is rotatably connected to the top of the connecting pipe 53.

[0029] In this embodiment, the feeding mechanism 7 includes a servo motor 71 fixedly installed outside the reaction tower body 1, a rotating shaft 72 fixedly connected to the output shaft of the servo motor 71, a rotating roller 73 fixedly connected to the outside of the rotating shaft 72, and a feeding plate 74 fixedly connected to the outside of the rotating roller 73.

[0030] The rotating shaft 72, rotating roller 73, and material-feeding plate 74 are all rotatably connected inside the reaction tower body 1. The outer diameter of the material-feeding plate 74 matches the inner diameter of the reaction tower body 1. There are four material-feeding plates 74, arranged in a ring shape inside the reaction tower body 1 and located on the surface of the packing structure 3. Driven by a servo motor 71, the rotating shaft 72, rotating roller 73, and material-feeding plate 74 rotate. The four ring-shaped material-feeding plates 74 rotate within the mounting box 31 of the packing structure 3, continuously tapping the gas-liquid mixture on the surface of the packing body 32. This arrangement not only prevents blockage of the packing body 32 but also ensures more uniform contact between the gas-liquid mixture and the packing surface, promoting a full reaction between the organic matter adsorbed on the packing and the oxidant, thus improving the packing regeneration efficiency and extending the packing replacement cycle.

[0031] In this embodiment, the liquid delivery mechanism 4 includes a storage tank 41 disposed outside the reaction tower body 1. A delivery pump 42 is fixedly installed outside the storage tank 41. An extraction pipe is fixedly connected between the input end of the delivery pump 42 and the storage tank 41. A delivery pipe 43 is fixedly connected between the delivery pump 42 and the bearing sleeve 54. The storage tank 41 of the liquid delivery mechanism 4 pumps the oxidant solution into the bearing sleeve 54 through the delivery pump 42 via the delivery pipe 43, then into the spray pipe 55 through the connecting pipe 53, and finally sprayed out from the nozzle 56. At the same time, the drive motor 57 drives the driven gear 52 to rotate through the transmission gear 58, so that the rotating sleeve 51, the connecting pipe 53, the spray pipe 55 and the nozzle 56 rotate synchronously. This coordination realizes the rotational spraying of the oxidant solution, expands the spray range, increases the contact area between the oxidant and the waste gas, and significantly improves the gas-liquid mixing efficiency.

[0032] In this embodiment, the packing structure 3 includes an installation box 31 that is fixedly connected to the inside of the reaction tower body 1, and the packing body 32 is slidably connected inside the installation box 31.

[0033] The air intake structure 6 includes an air intake pipe 61 fixedly connected to the top of the cover plate 2 and an annular nozzle 62 fixedly connected to the inner wall of the reaction tower body 1. A flexible hose 63 is fixedly connected between the air intake pipe 61 and the annular nozzle 62. The annular nozzle 62 is located outside the nozzle 55 and the nozzle 56. The air intake pipe 61 delivers the exhaust gas to the annular nozzle 62 through the flexible hose 63. The annular nozzle 62 evenly releases the exhaust gas into the interior of the reaction tower body 1. At the same time, the rotating nozzle 56 sprays out an oxidant solution, forming a countercurrent convection with the exhaust gas released from the annular nozzle 62.

[0034] Specifically, a gas outlet pipe 8 and a water outlet pipe 9 are fixedly connected to one side of the bottom of the reaction tower body 1, with the water outlet pipe 9 located below the gas outlet pipe 8. By positioning the water outlet pipe 9 below the gas outlet pipe 8, the reacted liquid can be discharged from the water outlet pipe 9 first, preventing the liquid from being discharged from the gas outlet pipe 8 along with the treated gas, thereby improving the gas-liquid separation efficiency and ensuring the quality of the output gas.

[0035] The working principle of the above embodiments is as follows:

[0036] During operation, the oxidant solution is first stored in the storage tank 41 of the infusion mechanism 4. The solution is then pumped by the delivery pump 42 through the extraction pipe and delivery pipe 43 into the bearing sleeve 54 of the rotary spraying mechanism 5, then flows into the connecting pipe 53 and into the spray nozzle 55, finally being sprayed out from multiple equally spaced nozzles 56. Simultaneously, the drive motor 57 starts, and its output shaft drives the transmission gear 58 to rotate. The driven gear 52 meshing with the transmission gear 58 rotates accordingly, thereby driving the rotating sleeve 51, connecting pipe 53, spray nozzle 55, and nozzles 56 to rotate synchronously, achieving the rotary spraying of the oxidant solution. At the same time, the waste gas to be treated is input through the inlet pipe 61 of the inlet structure 6 and transported through the hose 63 to the annular spray nozzle 62 located outside the spray nozzle 55 and nozzles 56, where it is evenly released into the interior of the reaction tower body 1. The gas-liquid mixture forms a counter-current with the rotating sprayed oxidant solution, initially completing the gas-liquid contact. Subsequently, the gas-liquid mixture flows downward to the packing structure 3, where the servo motor 71 of the feeding mechanism 7 starts, driving the rotating shaft 72, the rotating roller 73, and the four annularly distributed feeding plates 74 to rotate. The feeding plates 74 continuously tap the gas-liquid mixture on the surface of the packing body 32 within the mounting box 31, preventing the packing body 32 from becoming clogged and promoting more uniform contact between the gas-liquid mixture and the packing body 32. This allows the organic matter adsorbed on the packing body 32 to fully react with the oxidant, achieving the oxidation and regeneration of the packing body 32. Finally, the treated gas is discharged through the gas outlet pipe 8 on one side of the bottom of the reaction tower body 1, while the reacted liquid is discharged through the water outlet pipe 9, which is located below the gas outlet pipe 8, completing the entire waste gas treatment process.

[0037] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.

[0038] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0039] 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.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multiphase advanced oxidation tower, characterized in that: The reaction tower includes a reaction tower body (1), a cover plate (2) detachably connected to the top of the reaction tower body (1), a packing structure (3) disposed inside the reaction tower body (1), and a liquid delivery mechanism (4) disposed outside the reaction tower body (1). The top of the cover plate (2) is provided with an air inlet structure (6) extending into the interior of the reaction tower body (1). The top of the cover plate (2) is provided with a rotating spraying mechanism (5) extending into the interior of the reaction tower body (1). The exterior of the reaction tower body (1) is provided with a material feeding mechanism (7) extending into its interior. The rotary spraying mechanism (5) includes a rotating sleeve (51) rotatably connected inside the cover plate (2) and a drive motor (57) fixedly installed on the top of the cover plate (2). A connecting pipe (53) is fixedly connected inside the rotating sleeve (51). A spray pipe (55) is fixedly connected to the bottom of the connecting pipe (53). A nozzle (56) is fixedly connected to the bottom of the spray pipe (55). A driven gear (52) is fixedly connected to the outside of the connecting pipe (53). A transmission gear (58) meshing with the driven gear (52) is fixedly connected to the output shaft of the drive motor (57). The feeding mechanism (7) includes a servo motor (71) fixedly installed outside the reaction tower body (1). A rotating shaft (72) is fixedly connected to the output shaft of the servo motor (71). A rotating roller (73) is fixedly connected to the outside of the rotating shaft (72). A feeding plate (74) is fixedly connected to the outside of the rotating roller (73).

2. The multiphase advanced oxidation tower according to claim 1, characterized in that: The number of nozzles (56) is multiple, and the multiple nozzles (56) are distributed at equal intervals at the bottom of the nozzle pipe (55). The nozzle pipe (55) and the nozzles (56) are rotatably connected to the inside of the reaction tower body (1). The top of the connecting pipe (53) is rotatably connected to a bearing sleeve (54).

3. The multiphase advanced oxidation tower according to claim 1, characterized in that: The infusion mechanism (4) includes a storage tank (41) located outside the reaction tower body (1). A delivery pump (42) is fixedly installed outside the storage tank (41). An extraction pipe is fixedly connected between the input end of the delivery pump (42) and the storage tank (41). A delivery pipe (43) is fixedly connected between the delivery pump (42) and the bearing sleeve (54).

4. The multiphase advanced oxidation tower according to claim 1, characterized in that: The rotating shaft (72), the rotating roller (73) and the feeding plate (74) are all rotatably connected to the inside of the reaction tower body (1), and the outer diameter of the feeding plate (74) is adapted to the inner diameter of the reaction tower body (1).

5. The multiphase advanced oxidation tower according to claim 1, characterized in that: The number of the material feeding plates (74) is four. The four material feeding plates (74) are arranged in a ring shape inside the reaction tower body (1) and located on the surface of the packing structure (3).

6. The multiphase advanced oxidation tower according to claim 1, characterized in that: The packing structure (3) includes an installation box (31) fixedly connected inside the reaction tower body (1), and the packing body (32) is slidably connected inside the installation box (31).

7. The multiphase advanced oxidation tower according to claim 1, characterized in that: The air intake structure (6) includes an air intake pipe (61) fixedly connected to the top of the cover plate (2) and an annular nozzle (62) fixedly connected to the inner wall of the reaction tower body (1). A flexible hose (63) is fixedly connected between the air intake pipe (61) and the annular nozzle (62). The annular nozzle (62) is located outside the nozzle (55) and the nozzle (56).

8. The multiphase advanced oxidation tower according to claim 1, characterized in that: The bottom side of the reaction tower body (1) is fixedly connected to an air outlet pipe (8) and a water outlet pipe (9), with the water outlet pipe (9) located below the air outlet pipe (8).

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