Catalytic ozonation reactor for sewage treatment

Abstract

The utility model discloses a catalytic ozonation reactor for sewage treatment. The catalytic ozonation reactor comprises a reactor body, the rotary gas inlet assembly is arranged at the bottom in the reactor body and comprises a gas inlet pipe, a gas outlet piece and a rotating piece, the gas inlet pipe penetrates through the gas inlet to be communicated with the gas outlet piece, a gas spraying opening is formed in the gas outlet piece, and the rotating piece is fixedly connected with the gas outlet piece and can drive the gas outlet piece to rotate so as to drive ozone to rotate and enter the reactor body; the catalyst bed layer is positioned above the rotary gas inlet assembly and is used for placing an ozone catalyst; the bubble barrier plate is positioned above the catalyst bed layer; the bubble scattering assembly is arranged between the catalyst bed layer and the rotary gas inlet assembly and can rotationally scatter rising ozone bubbles. Ozone and sewage can be fully combined, the contact area of the ozone and the sewage is increased, the utilization rate of the ozone is increased, and the sewage treatment effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment equipment, in particular to an ozone catalytic oxidation reactor for sewage treatment. Background Art

[0002] Sewage treatment is the process of purifying sewage to meet the water quality requirements for discharge into a water body or reuse. When sewage is treated, sewage and ozone need to be added to the inside of the catalytic oxidation reaction tower, and then ozone and sewage rise to the catalyst bed, and the sewage is oxidized under the action of ozone and catalyst, thereby treating the sewage;

[0003] However, the ozone in the existing ozone catalytic oxidation reaction tower is directly transported to the bottom of the reaction tower through a pipeline. The ozone cannot be fully combined with water, and the ozone bubbles are large and the contact area with the sewage is small, resulting in low ozone utilization rate; and the contact time between ozone and the catalyst on the catalyst bed is short, resulting in a short catalytic oxidation process, which in turn leads to insufficient reaction and poor sewage treatment effect. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide an ozone catalytic oxidation reactor for sewage treatment, which can fully combine ozone with sewage, increase the contact area between ozone and sewage, improve the utilization rate of ozone, and improve the sewage treatment effect.

[0005] The utility model provides an ozone catalytic oxidation reactor for sewage treatment, comprising:

[0006] The reactor body has a water inlet, a drain port and an air inlet on its side wall, and the air inlet is arranged at the bottom of the side wall of the reactor body;

[0007] A rotating air inlet assembly is arranged at the bottom of the reactor body, comprising an air inlet pipe, an air outlet member and a rotating member, wherein the air inlet pipe passes through the air inlet and is connected to the air outlet member, an air jet is provided on the air outlet member, and the rotating member is fixedly connected to the air outlet member, and the rotating member can drive the air outlet member to rotate, thereby driving ozone to rotate and enter the reactor body;

[0008] A catalyst bed is disposed in the reactor body and above the rotating air inlet assembly, and is used to place an ozone catalyst;

[0009] A bubble baffle is disposed in the reactor body and above the catalyst bed;

[0010] The bubble breaking component is arranged between the catalyst bed and the rotating air inlet component, and can rotate to break up the rising ozone bubbles.

[0011] Furthermore, the gas outlet member includes a connecting pipe and a gas outlet plate, a plurality of the gas outlet plates are evenly arranged along the circumference of the connecting pipe, and the plurality of the gas outlet plates are all connected to the connecting pipe, and a plurality of the gas outlets are provided on the plurality of the gas outlet plates;

[0012] The rotating member includes a first gear, a second gear and a first motor. The first gear is arranged in the reactor body through a support column. The bottom of the first gear is rotatably connected to the top of the support column. The top of the first gear is fixedly connected to the connecting pipe. One end of the air intake pipe penetrates into the interior of the support column and passes through the center of the first gear and extends into the connecting pipe. The air intake pipe is rotatably connected to the first gear. The second gear is arranged on one side of the first gear and meshes with the first gear. The output end of the first motor is fixedly connected to the second gear.

[0013] Furthermore, the bubble breaking assembly includes a first rotating rod, one end of which is connected to a second motor for driving the first rotating rod to rotate, and the outer surface of the first rotating rod is provided with a plurality of breaking paddles along its length direction, and the outer surface of the breaking paddles is provided with serrations.

[0014] Furthermore, a second rotating rod is arranged above the catalyst bed, one end of which is connected to a third motor driving the second rotating rod to rotate, and the other end passes through the bubble baffle and is provided with a stirring blade, and a plurality of bubble breaking rods are also arranged on the second rotating rod.

[0015] Furthermore, the bubble barrier plate is provided with a plurality of water holes.

[0016] Furthermore, the catalyst bed is arranged in multiple groups at intervals along the vertical direction.

[0017] Furthermore, a reflux water outlet and a reflux water inlet are provided on the reactor body, the reflux water outlet and the reflux water inlet are connected through a reflux pipe, and a water pump is provided on the reflux pipe.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model is provided with a rotating air inlet component in a reactor body, ozone flows into the air outlet part through an air inlet pipe, the rotating component drives the air outlet part to rotate, and when the air outlet part rotates, the ozone is driven to rotate and flow into the reactor body from the air jet port on the air outlet part, and the ozone enters the reactor body from multiple angles, so that the ozone and sewage are more fully combined, and the utilization rate of the ozone is improved; the larger bubbles generated by the ozone in the sewage are broken into small bubbles by the bubble breaking component, and the contact area between the ozone and the sewage is increased, and the bubble baffle plate intercepts the ozone bubbles, so that the ozone bubbles stay in the catalyst bed for a longer time, so that the ozone catalytic oxidation reaction is sufficient, thereby making the catalytic oxidation effect of ozone on the sewage better, and improving the sewage treatment effect.

[0020] It should be understood that the contents described in the utility model summary are not intended to limit the key or important features of the embodiments of the utility model, nor are they intended to limit the scope of the utility model. Other features of the utility model will become easy to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 It is a schematic diagram of the structure of the gas outlet component from a top view;

[0024] Numbers in the figure: 1, reactor body; 2, rotating air inlet assembly; 3, catalyst bed; 4, bubble baffle; 5, bubble breaking assembly; 6, second rotating rod; 7, water pump;

[0025] 11. Water inlet; 12. Drain outlet; 13. Air inlet; 14. Backflow water outlet; 15. Backflow water inlet; 16. Air outlet;

[0026] 21. Inlet pipe; 22. Air outlet; 23. Rotating part; 24. Air jet;

[0027] 51. first rotating rod; 52. second motor; 53. breaking up paddle;

[0028] 61. stirring blade; 62. bubble breaking rod;

[0029] 221, connecting pipe; 222, air outlet plate;

[0030] 231, first gear; 232, second gear; 233, first motor. DETAILED DESCRIPTION

[0031] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings.

[0032] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] Please refer to Figure 1-2 The embodiment of the utility model provides an ozone catalytic oxidation reactor for sewage treatment, comprising a reactor body 1, a water inlet 11, a drain port 12 and an air inlet 13 are provided on the side wall of the reactor body 1, and the air inlet 13 is arranged at the bottom of the side wall of the reactor body 1;

[0034] The rotating air inlet assembly 2 is arranged at the bottom of the reactor body 1, and includes an air inlet pipe 21, an air outlet member 22 and a rotating member 23. The air inlet pipe 21 passes through the air inlet 13 and is connected to the air outlet member 22. The air outlet member 22 is provided with an air jet 24. The rotating member 23 is fixedly connected to the air outlet member 22. The rotating member 23 can drive the air outlet member 22 to rotate, thereby driving ozone to rotate and enter the reactor body 1.

[0035] The catalyst bed 3 is arranged in the reactor body 1 and located above the rotating air inlet assembly 2, and is used to place the ozone catalyst;

[0036] The bubble baffle plate 4 is arranged in the reactor body 1 and is located above the catalyst bed 3;

[0037] The bubble breaking component 5 is arranged between the catalyst bed 3 and the rotating air inlet component 2, and can rotate to break up the rising ozone bubbles.

[0038] In this embodiment, the water inlet 11 is arranged at the upper part of the side wall of the reactor body 1, and the air inlet 13 is arranged at the bottom of the side wall of the reactor body 1. The water inlet 11 is connected to the external sewage pool through the water inlet pipeline. The sewage to be treated flows into the reactor body 1 from the water inlet 11. An air inlet pipe 21 runs through the air inlet 13. An ozone generator is connected to one end of the air inlet pipe 21 located outside the reactor body 1, and an air pump is also connected to the air inlet pipe 21 to allow ozone to enter the reactor body 1 under a certain pressure. A one-way valve is also provided on the air inlet pipe 21 to prevent gas backflow; one end of the air inlet pipe 21 located in the reactor body 1 is connected to the rotating air inlet assembly 2, the catalyst bed 3 is located above the rotating air inlet assembly 2, the catalyst bed 3 is used to place the ozone catalyst, the bubble breaking assembly 5 is located between the rotating air inlet assembly 2 and the catalyst bed 3, the bubble baffle 4 is located above the catalyst bed 3, the bubble baffle 4 has a certain interception effect on the ozone bubbles, and can make the ozone bubbles contact with the ozone catalyst for a longer time;

[0039] The rotating air inlet component 2 includes an air inlet pipe 21, an air outlet member 22 and a rotating member 23. Sewage flows into the reactor body 1 from the water inlet 11, and ozone flows into the air outlet member 22 through the air inlet pipe 21. The rotating member 23 drives the air outlet member 22 to rotate. When the air outlet member 22 rotates, it drives the ozone to rotate and spray out from the air jet 24. The rotating spraying of ozone makes the ozone and sewage combine more fully, thereby improving the utilization rate of ozone. Ozone is sprayed from the air jet 24 to generate bubbles in the sewage. The bubble breaking component 5 rotates to break up the larger bubbles into smaller bubbles. , increasing the contact area between ozone and sewage, small bubbles rise to the catalyst bed, multiple or single ozone catalysts are placed on the catalyst bed 3, and ozone decomposes macromolecular organic matter in sewage under the action of the catalyst. The bubble baffle 4 above the catalyst bed 3 has a certain blocking effect on micro ozone bubbles, extending the residence time of ozone bubbles in the catalyst bed 3, making the ozone bubbles contact with the ozone catalyst for a longer time, making the ozone catalytic oxidation reaction more complete, improving the utilization rate of ozone, and improving the sewage treatment effect.

[0040] like Figure 1 As shown, preferably, the gas outlet member 22 includes a connecting pipe 221 and a gas outlet plate 222, and a plurality of gas outlet plates 222 are evenly arranged along the circumference of the connecting pipe 221, and the plurality of gas outlet plates 222 are all connected to the connecting pipe 221, and a plurality of gas outlets 24 are opened on the plurality of gas outlet plates 222;

[0041] The rotating member 23 includes a first gear 231, a second gear 232 and a first motor 233. The first gear 231 is arranged in the reactor body 1 through a support column. The bottom of the first gear 231 is rotatably connected to the top of the support column. The top of the first gear 231 is fixedly connected to the connecting pipe 221. One end of the air inlet pipe 21 penetrates into the interior of the support column and passes through the center of the first gear 231 to extend into the connecting pipe 221. The air inlet pipe 21 is rotatably connected to the first gear 231. The second gear 232 is arranged on one side of the first gear 231 and is meshed with the first gear 231. The output end of the first motor 233 is fixedly connected to the second gear 232.

[0042] In this embodiment, the connecting pipe 221 is a hard pipe, and the plurality of gas outlet plates 222 are all plate-shaped structures, and the plurality of gas outlet plates 222 are hollow inside and communicate with the side wall of the connecting pipe 221, and the outer surface of the gas outlet plate 222 is provided with a plurality of air jets 24 communicated with the inner cavity thereof;

[0043] The support column is fixedly arranged at the bottom of the reactor body 1, and the interior of the support column is hollow. The first gear 231 is rotatably arranged at the top of the support column. The bottom of the connecting pipe 221 is fixedly connected to the top of the first gear 231. When the first gear 231 rotates, it can drive the connecting pipe 221 to rotate synchronously. One end of the air inlet pipe 21 penetrates into the support column and extends through the middle of the first gear 231. The end of the air inlet pipe 21 is sleeved in the connecting pipe 221. The air inlet pipe 21 is rotatably connected to the connecting pipe 221. The air inlet pipe 21 is rotatably connected to the first gear 231. One side of the first gear 231 is provided with a second gear 232 meshingly connected therewith.

[0044] Ozone flows into the connecting pipe 221 through the air inlet pipe 21, the first motor 233 drives the second gear 232 to rotate, the second gear 232 drives the first gear 231 meshing therewith to rotate, the first gear 231 rotates and drives the connecting pipe 221 and the air outlet plate 22 on the top thereof to rotate, and ozone is rotated and sprayed out from the multiple jet ports 24 on the air outlet plate 222, so that the ozone and sewage are more fully combined, and the air outlet plate 222 is a plate-shaped structure. When the connecting pipe 221 rotates, the air outlet plate 222 stirs the sewage, so that the ozone and sewage are more fully combined.

[0045] like Figure 1 As shown, preferably, the bubble breaking assembly 5 includes a first rotating rod 51, one end of which is connected to a second motor 52 for driving the first rotating rod 51 to rotate, and the outer surface of the first rotating rod 51 is provided with a plurality of breaking paddles 53 along its length direction, and the outer surface of the breaking paddles 53 is provided with serrations.

[0046] In this embodiment, ozone is sprayed from the jet port 24, and ozone bubbles are generated in the sewage. The second motor 52 drives the first rotating rod 51 to rotate. When the first rotating rod 51 rotates, the saw teeth on the breaking paddle 53 break up the rising larger ozone bubbles into small bubbles, thereby increasing the contact area between the ozone bubbles and the sewage and improving the utilization rate of ozone.

[0047] like Figure 1 As shown, preferably, a second rotating rod 6 is also provided above the catalyst bed 3, one end of the second rotating rod 6 is connected to a third motor driving it to rotate, the other end passes through the bubble barrier plate 4 and is provided with a stirring blade 61, and a plurality of groups of bubble breaking rods 62 are also provided on the second rotating rod 6.

[0048] In this embodiment, the second rotating rod 6 rotates to drive the stirring blades to stir the sewage, so that the ozone and sewage are mixed more fully, and when the second rotating rod 6 rotates, it can also drive the bubble breaking rod 62 to rotate. The bubble breaking rod 62 can further break up the ozone bubbles under the bubble baffle 4 into smaller bubbles, increase the surface area of ​​the ozone bubbles, and make the ozone catalytic oxidation effect on the sewage better under the action of the catalyst.

[0049] like Figure 1 As shown, preferably, a plurality of water holes are provided on the bubble baffle plate 4. Sewage can flow through the water holes.

[0050] like Figure 1 As shown, preferably, the catalyst bed 3 is arranged in multiple groups at intervals along the vertical direction.

[0051] In this embodiment, three groups of catalyst beds 3 are arranged in parallel along the vertical direction. The arrangement of three groups of catalyst beds 3 can prolong the time for ozone and sewage to pass through the catalyst, so that ozone has a better treatment effect on sewage under the action of the catalyst.

[0052] like Figure 1 As shown, preferably, the reactor body 1 is further provided with a reflux water outlet 14 and a reflux water inlet 15 , the reflux water outlet 14 and the reflux water inlet 15 are connected through a reflux pipe, and a water pump 7 is provided on the reflux pipe.

[0053] In this embodiment, the treated sewage flows back into the reactor body 1 through the return water outlet 14 and the return water inlet 15, and the sewage is repeatedly catalytically oxidized to improve the sewage treatment effect.

[0054] like Figure 1 As shown, preferably, a gas outlet 16 is provided on the top of the reactor body 1. Specifically, the reacted gas is discharged from the gas outlet 16.

[0055] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0056] In the description of this specification, the description of the terms "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0057] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An ozone catalytic oxidation reactor for sewage treatment, characterized in that: include: A reactor body (1) having a water inlet (11), a water outlet (12) and an air inlet (13) on its side wall, wherein the air inlet (13) is arranged at the bottom of the side wall of the reactor body (1); A rotating air inlet assembly (2) is arranged at the bottom of the reactor body (1), comprising an air inlet pipe (21), an air outlet member (22) and a rotating member (23); the air inlet pipe (21) passes through the air inlet (13) and is connected to the air outlet member (22); an air jet (24) is provided on the air outlet member (22); the rotating member (23) is fixedly connected to the air outlet member (22); the rotating member (23) can drive the air outlet member (22) to rotate, thereby driving ozone to rotate and enter the reactor body (1); A catalyst bed (3) is arranged in the reactor body (1) and located above the rotating air inlet assembly (2), and is used to place an ozone catalyst; A bubble baffle (4) is arranged in the reactor body (1) and located above the catalyst bed (3); The bubble breaking component (5) is arranged between the catalyst bed (3) and the rotating air inlet component (2) and can rotate to break up the rising ozone bubbles.

2. The ozone catalytic oxidation reactor for sewage treatment according to claim 1, characterized in that: The gas outlet member (22) comprises a connecting pipe (221) and a gas outlet plate (222), a plurality of the gas outlet plates (222) are evenly arranged along the circumference of the connecting pipe (221), and the plurality of gas outlet plates (222) are all connected to the connecting pipe (221), and a plurality of the gas outlet ports (24) are provided on the plurality of gas outlet plates (222); The rotating member (23) comprises a first gear (231), a second gear (232) and a first motor (233); the first gear (231) is arranged in the reactor body (1) through a support column; the bottom of the first gear (231) is rotatably connected to the top of the support column; the top of the first gear (231) is fixedly connected to the connecting pipe (221); one end of the air inlet pipe (21) penetrates into the interior of the support column and passes through the center of the first gear (231) to extend into the connecting pipe (221); the air inlet pipe (21) is rotatably connected to the first gear (231); the second gear (232) is arranged on one side of the first gear (231) and is meshed with the first gear (231); and the output end of the first motor (233) is fixedly connected to the second gear (232).

3. The ozone catalytic oxidation reactor for sewage treatment according to claim 1, characterized in that: The bubble breaking assembly (5) comprises a first rotating rod (51), one end of which is connected to a second motor (52) for driving the first rotating rod (51) to rotate, and the outer surface of the first rotating rod (51) is provided with a plurality of breaking paddles (53) along its length direction, and the outer surface of the breaking paddles (53) is provided with saw teeth.

4. The ozone catalytic oxidation reactor for sewage treatment according to claim 1, characterized in that: A second rotating rod (6) is also arranged above the catalyst bed (3); one end of the second rotating rod (6) is connected to a third motor for driving the second rotating rod (6) to rotate; the other end of the second rotating rod (6) passes through the bubble baffle plate (4) and is provided with a stirring blade (61); and a plurality of groups of bubble breaking rods (62) are also arranged on the second rotating rod (6).

5. The ozone catalytic oxidation reactor for sewage treatment according to claim 1, characterized in that: The bubble baffle plate (4) is provided with a plurality of water holes.

6. The ozone catalytic oxidation reactor for sewage treatment according to claim 1, characterized in that: The catalyst bed layers (3) are arranged in multiple groups at intervals along the vertical direction.

7. The ozone catalytic oxidation reactor for sewage treatment according to claim 1, characterized in that: The reactor body (1) is also provided with a reflux water outlet (14) and a reflux water inlet (15); the reflux water outlet (14) and the reflux water inlet (15) are connected via a reflux pipe, and a water pump (7) is provided on the reflux pipe.

8. The ozone catalytic oxidation reactor for sewage treatment according to claim 1, characterized in that: A gas outlet (16) is provided at the top of the reactor body (1).

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