Oxidation tower and oxidation tower group

Abstract

The utility model provides an oxidation tower and an oxidation tower group for liquid treatment, the oxidation tower comprises a first oxidation chamber, a second oxidation chamber, a third oxidation chamber and a fourth oxidation chamber, and the bottoms of the first oxidation chamber, the second oxidation chamber, the third oxidation chamber and the fourth oxidation chamber are provided with oxidation gas inlets; the bottom of the first oxidation chamber is communicated with the second oxidation chamber, the top of the second oxidation chamber is communicated with the third oxidation chamber, the bottom of the third oxidation chamber is communicated with the fourth oxidation chamber, and after entering the first oxidation chamber, liquid sequentially flows through the second oxidation chamber, the third oxidation chamber and the fourth oxidation chamber; the flowing direction of liquid in the first oxidation chamber is opposite to the flowing direction of the liquid in the second oxidation chamber, and the flowing direction of the liquid in the second oxidation chamber is opposite to the flowing direction of the liquid in the third oxidation chamber. The flowing direction of the liquid in the third oxidizing chamber is opposite to the flowing direction of the liquid in the fourth oxidizing chamber. According to the oxidation tower, the height requirement of the oxidation tower is greatly reduced, and the oxidation treatment effect is improved.

Description

Technical Field

[0001] The present application relates to the field of wastewater treatment, and more particularly, to an oxidation tower and an oxidation tower group. Background Art

[0002] An oxidation tower is a commonly used treatment device in the field of wastewater treatment, in which ozone is mainly used as the oxidation gas. When treating wastewater in the oxidation tower, the wastewater is usually transported into the oxidation tower from the top of the oxidation tower, and ozone is continuously supplied at the bottom of the oxidation tower, so that the wastewater reacts with ozone along the flowing path, thereby realizing the treatment of the wastewater, and the treated wastewater flows out from the bottom of the oxidation tower.

[0003] The current oxidation tower adopts a single oxidation chamber. Since the wastewater needs to react with ozone for a long time during wastewater treatment, the height of the oxidation tower is very high, which limits the use scenarios of the oxidation tower. Moreover, an oxidation tower with a higher height requires more materials, has higher strength requirements, and higher production costs; while for an oxidation tower with a smaller height, the reaction time of the wastewater and ozone is shorter, and the wastewater treatment effect is not good. Therefore, how to reduce the height of the oxidation tower and improve the wastewater treatment effect has become a problem to be solved at present.

[0004] In addition, for the current oxidation tower, when treating wastewater with different pollution degrees, since the height of the oxidation tower is usually not easy to increase, the treated wastewater may not be completely treated, resulting in unsatisfactory treatment effects. Summary of the Utility Model

[0005] The main object of the present application is to overcome at least one defect of the above-mentioned prior art, and to provide an oxidation tower and an oxidation tower group for liquid treatment, wherein the oxidation tower has a lower height and a good wastewater treatment effect.

[0006] To achieve the above object, the present application adopts the following technical solutions:

[0007] According to one aspect of the present application, an oxidation tower for liquid treatment is provided. The oxidation tower includes: a first oxidation chamber, a second oxidation chamber, a third oxidation chamber, and a fourth oxidation chamber. Oxidation gas inlets are provided at the bottoms of the first oxidation chamber, the second oxidation chamber, the third oxidation chamber, and the fourth oxidation chamber. The bottom of the first oxidation chamber communicates with the second oxidation chamber, the top of the second oxidation chamber communicates with the third oxidation chamber, and the bottom of the third oxidation chamber communicates with the fourth oxidation chamber. After the liquid enters the first oxidation chamber, it sequentially flows through the second oxidation chamber, the third oxidation chamber, and the fourth oxidation chamber, and undergoes an oxidation reaction with the oxidation gas entering through the oxidation gas inlets. The flow direction of the liquid in the first oxidation chamber is opposite to that in the second oxidation chamber, the flow direction of the liquid in the second oxidation chamber is opposite to that in the third oxidation chamber, and the flow direction of the liquid in the third oxidation chamber is opposite to that in the fourth oxidation chamber.

[0008] According to one embodiment of the present application, the four oxidation chambers are respectively: a first oxidation chamber, a second oxidation chamber, a third oxidation chamber, and a fourth oxidation chamber. Among them, the first oxidation chamber includes a first inlet, a first outlet, and a first oxidation gas inlet. The first inlet is provided at the top of the first oxidation chamber, the first outlet is provided at the bottom of the first oxidation chamber, and the first oxidation gas inlet is provided between the first inlet and the first outlet and is close to the first outlet. The second oxidation chamber includes a second inlet, a second outlet, and a second oxidation gas inlet. The second inlet is provided at the bottom of the second oxidation chamber, the second outlet is provided at the top of the second oxidation chamber, and the second oxidation gas inlet is provided between the second inlet and the second outlet and is close to the second inlet. The third oxidation chamber includes a third inlet, a third outlet, and a third oxidation gas inlet. The third inlet is provided at the top of the third oxidation chamber, the third outlet is provided at the bottom of the third oxidation chamber, and the third oxidation gas inlet is provided between the third inlet and the third outlet and is close to the third outlet. The fourth oxidation chamber includes a fourth inlet, a fourth outlet, and a fourth oxidation gas inlet. The fourth inlet is provided at the bottom of the fourth oxidation chamber, the fourth outlet is provided at the top of the fourth oxidation chamber, and the fourth oxidation gas inlet is provided between the fourth inlet and the fourth outlet and is close to the fourth inlet.

[0009] The first outlet communicates with the second inlet. After the liquid enters the first oxidation chamber from the first inlet, it successively flows through the first oxidation gas inlet, the first outlet, the second inlet, and the second oxidation gas inlet, and flows out from the second outlet. The second outlet communicates with the third inlet. The liquid flows into the third oxidation chamber from the second outlet and successively flows through the third inlet, the third oxidation gas inlet, and the third outlet. The third outlet communicates with the fourth inlet. The liquid flows into the fourth oxidation chamber from the third outlet and successively flows through the fourth inlet, the fourth oxidation gas inlet, and the fourth outlet.

[0010] According to one embodiment of the present application, the first oxidation chamber and the second oxidation chamber are separated by a first partition. The first partition is provided with an overflow hole or a through hole to communicate the first outlet and the second inlet.

[0011] According to one embodiment of the present application, the third oxidation chamber and the second oxidation chamber are separated by a second partition. The second partition has a notch, and the notch communicates the second outlet and the third inlet.

[0012] According to one embodiment of the present application, the third oxidation chamber and the fourth oxidation chamber are separated by a third partition. The third partition is provided with an overflow hole or a through hole to communicate the third outlet and the fourth inlet.

[0013] According to one embodiment of the present application, a fourth partition is provided between the fourth oxidation chamber and the first oxidation chamber. The fourth partition completely separates the first oxidation chamber and the fourth oxidation chamber.

[0014] According to one embodiment of the present application, the direction from the top to the bottom of the oxidation chamber is defined as the axial direction, and the plane perpendicular to the axial direction is the cross-section. The cross-sections of the oxidation chamber and the oxidation tower are both square.

[0015] According to one embodiment of the present application, the heights of the oxidation chambers are the same, and the ratio of the height of the oxidation chamber to the side length of the square ranges from 8 to 10.

[0016] According to one embodiment of the present application, the oxidation gas is ozone and the liquid is wastewater.

[0017] On the other hand, according to the present application, an oxidation tower group is provided. The oxidation tower group includes at least two oxidation towers and connecting partitions. The two oxidation towers are connected and separated by the connecting partitions, wherein the oxidation tower adopts the above oxidation tower.

[0018] As can be seen from the above technical solutions, the advantages and positive effects of the oxidation tower proposed by the present application are as follows:

[0019] The oxidation tower proposed in this application includes a first oxidation chamber, a second oxidation chamber, a third oxidation chamber, and a fourth oxidation chamber. Oxidation gas inlets are provided at the bottoms of the first oxidation chamber, the second oxidation chamber, the third oxidation chamber, and the fourth oxidation chamber, which can oxidize the liquid. The bottom of the first oxidation chamber is connected to the second oxidation chamber, the top of the second oxidation chamber is connected to the third oxidation chamber, and the bottom of the third oxidation chamber is connected to the fourth oxidation chamber. After the liquid enters the first oxidation chamber, it sequentially flows through the second oxidation chamber, the third oxidation chamber, and the fourth oxidation chamber, and undergoes an oxidation reaction with the oxidation gas entering through the oxidation gas inlet. The flow direction of the liquid in the first oxidation chamber is opposite to that in the second oxidation chamber, the flow direction of the liquid in the second oxidation chamber is opposite to that in the third oxidation chamber, and the flow direction of the liquid in the third oxidation chamber is opposite to that in the fourth oxidation chamber. By using four oxidation chambers, the height of the oxidation tower is greatly reduced. In this oxidation tower, the oxidation chambers are arranged in sequence before and after according to the order in which the liquid flows through the oxidation chambers, and the flow direction of the liquid in two adjacent oxidation chambers before and after is opposite. The above folding-type liquid flow can achieve reducing the height of the oxidation tower without reducing the length of the path that the liquid flows through, that is, without shortening the reaction time between the liquid and the oxidation gas, thereby achieving reducing the height of the oxidation tower and improving the liquid treatment effect.

[0020] In addition, the oxidation tower of this application can also appropriately increase the oxidation chambers according to the pollution degree of the liquid, thereby further prolonging the oxidation reaction time of the liquid and further improving the liquid treatment effect; and can extend the liquid treatment path without increasing the height of the oxidation tower, ensuring that liquids with different pollution degrees can be effectively treated. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] By considering the following detailed description of the preferred embodiments of this application in conjunction with the drawings, various objectives, features, and advantages of this application will become more obvious. The drawings are only exemplary diagrams of this application and are not necessarily drawn to scale. In the drawings, the same reference numerals always represent the same or similar components. Among them:

[0022] Figure 1 is a schematic structural diagram of the oxidation tower and the oxidation tower group of this application.

[0023] Figure 2 is Figure 1 a top-view structural diagram of the oxidation tower and the oxidation tower group of (with an outer border added).

[0024] Figure 3 is Figure 1 a schematic structural diagram of the first oxidation chamber and the second oxidation chamber of the oxidation tower of .

[0025] Figure 4 is Figure 1Schematic diagram of the second oxidation chamber and the third oxidation chamber of the oxidation tower.

[0026] Figure 5 is Figure 1 Schematic diagram of the third oxidation chamber and the fourth oxidation chamber of the oxidation tower.

[0027] Figure 6 is Figure 1 Schematic diagram of the fourth oxidation chamber and the first oxidation chamber of the oxidation tower.

[0028] Figure 7 It is a top view structural schematic diagram of another embodiment of the oxidation tower of the present application.

[0029] The description of the reference numerals is as follows:

[0030] 1. Oxidation tower;

[0031] 2. Oxidation tower group;

[0032] 10. First oxidation chamber;

[0033] 11. Second oxidation chamber;

[0034] 12. Third oxidation chamber;

[0035] 13. Fourth oxidation chamber;

[0036] 14. Oxidation gas inlet;

[0037] 15. First partition;

[0038] 16. Second partition;

[0039] 17. Third partition;

[0040] 18. Fourth partition;

[0041] 20. Connecting partition;

[0042] 21. Pump;

[0043] 30. Catalytic layer;

[0044] 31. Discharge port;

[0045] 40. Manhole;

[0046] 50. Exhaust port;

[0047] 60. Test instrument;

[0048] 70. Liquid inlet;

[0049] 80. Liquid outlet;

[0050] 101. First inlet;

[0051] 102. First outlet;

[0052] 111. Second inlet;

[0053] 112. Second outlet;

[0054] 121. Third inlet;

[0055] 122. Third outlet;

[0056] 131. Fourth inlet;

[0057] 132. Fourth outlet;

[0058] 151. Overflow hole or through hole;

[0059] 161. Notch;

[0060] 141. First oxidation gas inlet;

[0061] 142. Second oxidation gas inlet;

[0062] 143. Third oxidation gas inlet;

[0063] 144. Fourth oxidation gas inlet;

[0064] 201. Outer frame;

[0065] A, B, C, D. Liquid flow direction. Detailed implementation manners

[0066] Typical embodiments embodying the features and advantages of the present application will be described in detail in the following description. It should be understood that the present application can have various variations in different embodiments, all of which do not depart from the scope of the present application, and the descriptions and drawings therein are for illustrative purposes in nature and not for limiting the present application.

[0067] In the following description of different exemplary embodiments of the present application, reference is made to the accompanying drawings, which form a part of the present application, and in which different exemplary structures, systems, and steps for implementing various aspects of the present application are shown by way of example. It should be understood that other specific solutions of components, structures, exemplary devices, systems, and steps can be used, and structural and functional modifications can be made without departing from the scope of the present application. When introducing the elements / components / etc. described and / or illustrated herein, the terms "comprising", "including", and "having" are used to mean an open inclusion and are intended to mean that there can be additional elements / components / etc. in addition to the listed elements / components / etc.

[0068] Relative terms such as "lower" or "bottom" and "upper" or "top" may be used herein to describe the relationship of one element to another element, as shown in the figures. It should be understood that relative terms are intended to encompass different orientations of the device in addition to the orientations shown in the figures. For example, if the device in one figure is flipped, an element described as "lower" or "bottom" of other elements will be oriented "upper" or "top" of other elements. Thus, the exemplary term "lower" may include the orientations of "lower" and "upper", and the term "bottom" may include the orientations of "bottom" and "top", depending on the specific orientation of the figure. Similarly, if the device in one figure is flipped, an element described as "lower" or "bottom" of other elements will be oriented as "upper" or "top" of other elements. Thus, the exemplary terms "bottom" or "below" may include the orientations of upper and lower.

[0069] As Figures 1 to 5 As shown, the oxidation tower 1 of the present application is used for liquid treatment. The oxidation tower 1 includes four oxidation chambers, namely: a first oxidation chamber 10, a second oxidation chamber 11, a third oxidation chamber 12, and a fourth oxidation chamber 13. Oxidation gas inlets 14 are provided at the bottoms of the first oxidation chamber 10, the second oxidation chamber 11, the third oxidation chamber 12, and the fourth oxidation chamber 13, which can oxidize the liquid. The bottom of the first oxidation chamber 10 communicates with the second oxidation chamber 11, the top of the second oxidation chamber 11 communicates with the third oxidation chamber 12, and the bottom of the third oxidation chamber 12 communicates with the fourth oxidation chamber 13. After the liquid enters the first oxidation chamber 10, it sequentially flows through the second oxidation chamber 11, the third oxidation chamber 12, and the fourth oxidation chamber 13, and undergoes an oxidation reaction with the oxidation gas entering through the oxidation gas inlet 14. The flow direction of the liquid in the first oxidation chamber 10 is opposite to that in the second oxidation chamber 11, the flow direction of the liquid in the second oxidation chamber 11 is opposite to that in the third oxidation chamber 12, and the flow direction of the liquid in the third oxidation chamber 12 is opposite to that in the fourth oxidation chamber 13. According to the order in which the liquid flows through the oxidation chambers, the oxidation chambers are sorted before and after. The oxidation chamber through which the liquid flows first is the front oxidation chamber, and the oxidation chamber through which the liquid flows later is the rear oxidation chamber. The flow direction of the liquid in two adjacent oxidation chambers before and after is opposite.

[0070] The oxidation tower 1 of the present application adopts four oxidation chambers, which greatly reduces the height of the oxidation tower 1. The use of a folded-back liquid flow can achieve a reduction in the height of the oxidation tower 1 without reducing the length of the path through which the liquid flows, that is, without shortening the reaction time between the liquid and the oxidation gas, thereby achieving a reduction in the height of the oxidation tower 1 and an improvement in the liquid treatment effect. The oxidation tower 1 of the present application can also appropriately increase the oxidation chamber according to the pollution degree of the liquid, thereby further prolonging the oxidation reaction time of the liquid and further improving the liquid treatment effect; and can extend the liquid treatment path without increasing the height of the oxidation tower 1, ensuring that liquids with different pollution degrees can be effectively treated. The interior of the oxidation tower 1 of the present application is sealed and isolated from the outside world, and only the liquid inlet 70 and the liquid outlet 80 of the oxidation tower 1 can communicate with the outside world for the entry of the liquid to be treated and the outflow of the treated liquid.

[0071] In this embodiment, as Figures 1 to 5 shown, among them, the first oxidation chamber 10 includes a first inlet 101, a first outlet 102 and a first oxidation gas inlet 141. The first inlet 101 is arranged at the top of the first oxidation chamber 10, the first outlet 102 is arranged at the bottom of the first oxidation chamber 10, and the first oxidation gas inlet 141 is arranged between the first inlet 101 and the first outlet 102 and is close to the first outlet 102. The second oxidation chamber 11 includes a second inlet 111, a second outlet 112 and a second oxidation gas inlet 142. The second inlet 111 is arranged at the bottom of the second oxidation chamber 11, the second outlet 112 is arranged at the top of the second oxidation chamber 11, and the second oxidation gas inlet 142 is arranged between the second inlet 111 and the second outlet 112 and is close to the second inlet 111. The first outlet 102 is communicated with the second inlet 111. After the liquid enters the first oxidation chamber 10 from the first inlet 101, it sequentially flows through the first oxidation gas inlet 141, the first outlet 102, the second inlet 111 and the second oxidation gas inlet 142, and flows out from the second outlet 112. The bottoms of the first oxidation chamber 10 and the second oxidation chamber 11 are communicated, and the distance that the liquid flows through is twice the height of the oxidation chamber, so that the liquid is fully treated, and the height of the oxidation chamber is small, so that the height of the oxidation tower 1 is correspondingly small, which is beneficial to reducing the height requirement of the place where the oxidation tower 1 is installed and further expanding the use scenario of the oxidation tower 1.

[0072] The third oxidation chamber 12 includes a third inlet 121, a third outlet 122, and a third oxidation gas inlet 143. The third inlet 121 is disposed at the top of the third oxidation chamber 12, the third outlet 122 is disposed at the bottom of the third oxidation chamber 12, and the third oxidation gas inlet 143 is disposed between the third inlet 121 and the third outlet 122 and is close to the third outlet 122. The second outlet 112 communicates with the third inlet 121. The liquid flows into the third oxidation chamber 12 from the second outlet 112 and sequentially flows through the third inlet 121, the third oxidation gas inlet 143, and the third outlet 122. The arrangement of the third oxidation chamber 12 can increase the treatment time and flow distance of the liquid, effectively improve the treatment effect of the liquid, and can also treat liquids with a relatively high degree of pollution.

[0073] The fourth oxidation chamber 13 includes a fourth inlet 131, a fourth outlet 132, and a fourth oxidation gas inlet 144. The fourth inlet 131 is disposed at the bottom of the fourth oxidation chamber 13, the fourth outlet 132 is disposed at the top of the fourth oxidation chamber 13, and the fourth oxidation gas inlet 144 is disposed between the fourth inlet 131 and the fourth outlet 132 and is close to the fourth inlet 131. The third outlet 122 communicates with the fourth inlet 131. The liquid flows into the fourth oxidation chamber 13 from the third outlet 122 and sequentially flows through the fourth inlet 131, the fourth oxidation gas inlet 144, and the fourth outlet 132. The fourth oxidation chamber 13 can continue to oxidize and treat the liquid flowing out from the third outlet 122, further improving the biodegradability of the liquid.

[0074] See Figure 3 , the flow directions of the liquid are the A direction and the B direction respectively. It can be seen that the flow direction of the liquid is the vertical direction. The oxidation chambers of the present application are arranged in the horizontal plane, and the flow direction of the liquid in the oxidation chambers is the vertical direction, not the horizontal direction. The liquid in the oxidation chambers of the present application flows vertically and reversely, so as to reduce the height of the oxidation chambers and ensure the liquid treatment effect. Among them, the A direction is the flow direction of the liquid in the first oxidation chamber 10, and the B direction is the flow direction of the liquid in the second oxidation chamber 11. The A direction and the B direction are opposite.

[0075] See Figure 4 , the C direction is the flow direction of the liquid in the third oxidation chamber 12, and the C direction is opposite to the B direction.

[0076] In this embodiment, as Figures 1 to 5The shown first oxidation chamber 10 and second oxidation chamber 11 are separated by a first partition 15. The first partition 15 is provided with an overflow hole or a through hole 151 to connect the first outlet 102 and the second inlet 111. Separating the first oxidation chamber 10 and the second oxidation chamber 11 by the first partition 15 ensures the direction of liquid flow, so that the liquid can fully react with the oxidation gas on the flow path, thereby ensuring the liquid treatment effect. Connecting the first outlet 102 and the second inlet 111 by the overflow hole or the through hole 151 has a simple structure and a simple manufacturing process, can reduce costs, and can introduce the liquid treated in the first oxidation chamber 10 into the second oxidation chamber 11 for further treatment.

[0077] In this embodiment, the first outlet 102 is connected to the second inlet 111 through a pump 21. The pump 21 and the overflow hole or the through hole 151 can be provided simultaneously or separately. For example, in some embodiments, only the overflow hole or the through hole 151 can be provided; in some other embodiments, only the pump 21 can be provided. The setting of the pump 21 can strengthen the flow of the liquid from the first oxidation chamber 10 to the second oxidation chamber 11.

[0078] In this embodiment, as Figures 1 to 5 shown, the third oxidation chamber 12 and the second oxidation chamber 11 are separated by a second partition 16. The second partition 16 has a notch 161, and the notch 161 connects the second outlet 112 and the third inlet 121. Separating the second oxidation chamber 11 and the third oxidation chamber 12 by the second partition 16 with a notch 161 at the top meets the return flow direction of the liquid, and the structure for the liquid to flow from the second oxidation chamber 11 into the third oxidation chamber 12 is simple, can save materials, and reduce the overall cost of the oxidation tower 1.

[0079] In this application, the number of oxidation chambers can be selected differently according to the pollution degree of the liquid to be treated. If the pollution degree of the liquid to be treated is relatively light, then a smaller number of oxidation chambers can be selected, such as two, three, etc.; if the pollution degree of the liquid to be treated is relatively serious, then a larger number of oxidation chambers can be selected, such as four, five, six or more, etc. The oxidation chambers can be arrayed like in this embodiment, or arranged in a row, or arranged in a ring, etc., as long as the liquid can be returned and flowed for treatment. The connection method between each oxidation chamber can also be selected. Usually, the top connection between two oxidation chambers can adopt a notch 161 like in this embodiment, or can also adopt forms such as the overflow hole or the through hole 151 similar to this embodiment, or can also adopt the form of the pump 21. The bottom connection between two oxidation chambers can adopt forms such as the overflow hole or the through hole 151 like in this embodiment, or can also adopt the form of the pump 21.

[0080] In this embodiment, refer to Figure 1 and Figure 5, the third oxidation chamber 12 and the fourth oxidation chamber 13 are separated by a third partition 17, and the third partition 17 is provided with an overflow hole or a through hole 151 to communicate the third outlet 122 and the fourth inlet 131. In this embodiment, the third oxidation chamber 12 and the fourth oxidation chamber 13 can also be communicated by a pump 21. The pump 21 can be set independently or simultaneously with the overflow hole or the through hole 151. For example, in some embodiments, only the overflow hole or the through hole 151 can be set; in other embodiments, only the pump 21 can be set.

[0081] Figure 5 The D direction in is the flow direction of the liquid in the fourth oxidation chamber 13, and the D direction is opposite to the C direction.

[0082] In this embodiment, as Figure 1 and Figure 6 shown, a fourth partition 18 is provided between the fourth oxidation chamber 13 and the first oxidation chamber 10, and the fourth partition 18 completely separates the first oxidation chamber 10 and the fourth oxidation chamber 13. That is to say, for the oxidation tower 1 of the present application, the first oxidation chamber 10 is the first oxidation chamber after the liquid flows in, and then multiple oxidation chambers can be set according to the pollution degree of the liquid. In this embodiment, a total of four oxidation chambers are set, which can make the overall shape of the oxidation tower 1 regular. The fourth oxidation chamber 13 is set at a position separated from the first oxidation chamber 10, and the liquid flows back and forth, so that the overall floor area of the oxidation tower 1 is small, and the oxidation tower 1 can adapt to different sites.

[0083] In this embodiment, referring to Figures 1 to 6 , a catalytic layer 30 is provided in each of the oxidation chambers 10, 11, 12, 13. The catalytic layer 30 is arranged at a position near the top in the middle of the oxidation chamber, and the catalytic layer 30 is provided with a catalyst. The catalyst is usually in the shape of a granular sphere. The catalyst of the present application does not participate in the reaction, but only increases the contact area between the liquid and the oxidation gas to improve the effect of the oxidation reaction. In fact, if the pollution degree of the liquid is small, the catalytic layer 30 can also not be set, that is, the catalyst is not set. Pebbles can be arranged at the bottom of the catalyst to provide support and further increase the contact area between the liquid and the oxidation gas.

[0084] In this embodiment, a discharge port 31 is provided at the position corresponding to the catalytic layer 30 in each of the oxidation chambers 10, 11, 12, 13, and the catalyst of the catalytic layer 30 is separated from the oxidation chamber through the discharge port 31. The setting of the discharge port 31 makes it easier to replace the catalyst.

[0085] In this embodiment, the direction from the top to the bottom of the oxidation chambers 10, 11, 12, 13 is defined as the axial direction, and the plane perpendicular to the axial direction is the cross section. Referring to Figure 2, the cross-sectional shapes of the oxidation chambers 10, 11, 12, and 13 are the same, all being rectangular, and the cross-sectional shape of the oxidation tower 1 is rectangular. The rectangular shape of the oxidation chambers is regular, which is convenient for building the oxidation tower 1.

[0086] In this embodiment, the cross-sections of the oxidation chambers 10, 11, 12, 13 and the oxidation tower 1 are all square. The square oxidation chambers are convenient to install, and the oxidation gas can fully cover the square cross-section, which is beneficial to improving the oxidation treatment effect of the liquid.

[0087] In this embodiment, the oxidation chambers 10, 11, 12, 13 have the same height, and the ratio of the height of the oxidation chambers 10, 11, 12, 13 to the side length of the square ranges from 8 to 10. This ratio range enables the liquid in the oxidation chambers 10, 11, 12, 13 to fully undergo oxidation reaction with the oxidation gas during the flowing process, which can enhance the utilization rate of the oxidation gas, improve the oxidation effect of the oxidation gas, save costs, and improve the biodegradability of the treated liquid.

[0088] In this embodiment, the oxidation gas is ozone and the liquid is wastewater. In some other embodiments, the oxidation gas can also be other types of gases.

[0089] In this embodiment, referring to Figure 4 , a manhole 40 is also provided at the top of the oxidation tower 1 for maintenance. An exhaust port 50 and a test instrument 60, etc. are also provided at the top of the oxidation tower 1. The test instrument 60 is mainly a pressure tester, a liquid level detector, etc. Since the gas generated by the oxidation reaction usually leaves the oxidation tower as the liquid flows out, generally there is no need to specifically set an oxidation gas outlet. However, in practice, to ensure the airtightness and pressure of the entire oxidation tower, an exhaust port needs to be set.

[0090] As Figures 1 to 6 shown, the present application also provides an oxidation tower group 2, which includes at least two oxidation towers 1 and a connecting partition 20. The two oxidation towers 1 are connected and separated by the connecting partition 20, and the oxidation tower 1 adopts the above-mentioned oxidation tower 1. The oxidation tower group 2 can treat multiple kinds of wastewater simultaneously, or can treat a relatively large amount of wastewater, which can improve the wastewater treatment efficiency. The number of oxidation towers 1 in the oxidation tower group 2 can be three, four, five, etc., and the number of oxidation towers 1 can be set according to actual needs. Among them, Figure 2 the outer frame 201 of the oxidation tower group 2 is also shown.

[0091] Figure 7 is another embodiment of the oxidation tower 1 of the present application. Compared with the oxidation tower 1 of the Figures 1 to 6 embodiment, it has a substantially the same structure in the basic structure. Therefore, in the following description of this other embodiment of the oxidation tower 1, the description will not be repeated.Figures 1 to 6 The structure described in the embodiments of Figures 1 to 6 The same reference numerals are used to label the structures that are the same as the structure of the oxidation tower 1 described in the embodiments of Figures 1 to 6 Therefore, in the following description of this embodiment, the differences from the oxidation tower 1 in the embodiments of Figures 1 to 6 will be mainly described. Among them, the oxidation tower 1 in that other embodiment is mainly different in the shape of the oxidation tower 1 from the oxidation tower 1 in

[0092] In this embodiment, the direction from the top to the bottom of the oxidation chambers 10, 11, 12, and 13 is defined as the axial direction, and the plane perpendicular to the axial direction is defined as the cross-sectional plane. The cross-sectional shapes of the oxidation chambers 10, 11, 12, and 13 are the same, all being fan-shaped, and the cross-sectional shape of the oxidation tower 1 is circular. The circular oxidation tower 1 can adapt to an arc-shaped site and can be divided into different numbers of fan-shaped oxidation chambers according to actual needs. In this embodiment, the circular oxidation tower 1 is composed of four fan-shaped oxidation chambers 10, 11, 12, and 13, and the partitions between the oxidation chambers are arranged in the same way as in Figures 1 to 6 the embodiments of

[0093] In this embodiment, the oxidation chambers 10, 11, 12, and 13 have the same height, and the ratio of the height of the oxidation chambers 10, 11, 12, and 13 to the radius of the cross-section of the oxidation chambers ranges from 8 to 10. This ratio range enables the liquid in the oxidation chamber to fully undergo an oxidation reaction with the oxidation gas during the flow process, which can enhance the utilization rate of the oxidation gas, improve the oxidation effect of the oxidation gas, save costs, and improve the biodegradability of the treated liquid.

[0094] In some other embodiments, the direction from the top to the bottom of the oxidation chambers 10, 11, 12, and 13 is defined as the axial direction, and the plane perpendicular to the axial direction is defined as the cross-sectional plane. The cross-sectional shape of the oxidation tower 1 is elliptical or oblong, and the cross-sections of the oxidation chambers are spliced to form the cross-section of the oxidation tower 1.

[0095] When the cross-sectional shape of the oxidation tower 1 is circular, elliptical, or oblong, the structure of the oxidation tower group 2 does not adopt the connecting partition 20, and multiple oxidation towers 1 can be arranged adjacent to each other.

[0096] In this exemplary embodiment, the oxidation tower 1 proposed in this application is described by taking the wastewater treatment field as an example. It is easy for those skilled in the art to understand that in order to apply the relevant designs of this application to other fields, various modifications, additions, substitutions, deletions, or other changes are made to the following specific embodiments, and these changes are still within the scope of the principle of the oxidation tower 1 proposed in this application.

[0097] It should be noted here that the oxidation tower 1 shown in the drawings and described in this specification is only a few examples of the many oxidation towers 1 that can adopt the principles of this application. It should be clearly understood that the principles of this application are by no means limited to any details or components of the oxidation tower 1 shown in the drawings or described in this specification.

[0098] The above is a detailed description of several exemplary embodiments of the oxidation tower 1 proposed in this application. The following will give an exemplary description of the usage process of the oxidation tower 1 proposed in this application.

[0099] Combined with the attached Figures 1 to 7 , the usage process of the oxidation tower 1 proposed in this application is as follows:

[0100] Open the oxidation gas inlets 14 (ozone inlets) at the bottoms of the oxidation chambers 10, 11, 12, and 13, and continuously introduce ozone into the oxidation chambers 10, 11, 12, and 13.

[0101] Let the wastewater to be treated flow into the first inlet 101 of the first oxidation chamber 10 from the liquid inlet 70. A catalytic layer 30 is provided in the upper-middle part of the first oxidation chamber 10. The wastewater to be treated flows from the top to the bottom of the first oxidation chamber 10 and contacts ozone during the flow process to carry out an oxidation reaction. The catalyst of the catalytic layer 30 can increase the contact area between the wastewater and ozone and improve the oxidation effect. After oxidation, the wastewater flows to the first outlet 102 and then passes through the overflow hole or through hole 151 provided at the bottom of the first partition 15 and flows into the second inlet 111 of the second oxidation chamber 11.

[0102] The liquid inlet 70 continuously transports wastewater to the first oxidation chamber 10. Since the bottoms of the first oxidation chamber 10 and the second oxidation chamber 11 are connected, the wastewater treated in the first oxidation chamber 10 will continuously flow into the second oxidation chamber 11 and flow from the bottom to the top of the second oxidation chamber 11. A catalytic layer 30 is provided in the upper-middle part of the second oxidation chamber 11. The wastewater contacts ozone during the flow process to carry out an oxidation reaction. After the second oxidation reaction, the wastewater flows from the top of the second oxidation chamber 11 through the notch 161 of the second partition 16 and into the third inlet 121 of the third oxidation chamber 12.

[0103] After the wastewater enters the third oxidation chamber 12, it flows from the top of the third oxidation chamber 12 to the bottom of the third oxidation chamber 12 and passes through the catalytic layer 30. After the third oxidation, the wastewater flows to the third outlet 122 and then passes through the overflow hole or through hole 151 provided at the bottom of the third partition 17 and flows into the fourth inlet 131 of the fourth oxidation chamber 13.

[0104] The liquid inlet 70 continuously transports wastewater to the first oxidation chamber 10. Since the bottoms or tops of the oxidation chambers 10, 11, 12, and 13 are connected, the wastewater treated in the third oxidation chamber 12 will continuously flow into the fourth oxidation chamber 13 and flow from the bottom to the top of the fourth oxidation chamber 13. A catalytic layer 30 is provided in the upper middle part of the fourth oxidation chamber 13. The wastewater contacts ozone during the flowing process to carry out an oxidation reaction. The wastewater after the fourth oxidation reaction and gas substances such as oxygen generated after the ozone reaction are discharged from the liquid outlet 80 at the top of the fourth oxidation chamber 13.

[0105] The above is the usage process of the oxidation tower 1 composed of four oxidation chambers. When the number of oxidation chambers forming the oxidation tower 1 is greater than four, according to the order of liquid flow, a fifth oxidation chamber can be connected after the fourth oxidation chamber 13. The connection and setting between the fourth oxidation chamber 13 and the fifth oxidation chamber are similar to the connection and setting between the second oxidation chamber 11 and the third oxidation chamber 12. By analogy, a sixth oxidation chamber can be set after the fifth oxidation chamber and so on.

[0106] Through the above usage process of the oxidation tower 1 of the present application, it can be obtained that the oxidation tower 1 of the present application adopts four oxidation chambers, greatly reducing the height of the oxidation tower 1. An oxidation gas inlet 14 is provided at the bottom of the oxidation chamber, which can oxidize the liquid. The bottoms of the oxidation chambers are connected or the tops of the oxidation chambers are connected. The liquid flows through the oxidation chambers in sequence, and the flow direction of the liquid in two adjacent oxidation chambers before and after is opposite, forming a folded-back flow circuit. The above folded-back liquid flow does not shorten the reaction time between the liquid and the oxidation gas while reducing the height of the oxidation tower 1, thus achieving the reduction of the height of the oxidation tower 1 and the improvement of the biodegradability of the liquid. The oxidation tower 1 of the present application can also appropriately increase the oxidation chambers according to the pollution degree of the liquid, thereby further extending the oxidation reaction time of the liquid and further improving the treatment effect of the liquid; and can extend the liquid treatment path without increasing the height of the oxidation tower 1, ensuring that liquids with different pollution degrees can be effectively treated.

[0107] In summary, the oxidation tower proposed in the present application includes four oxidation chambers. Oxidation gas inlets are provided at the bottoms of the oxidation chambers, which can oxidize the liquid. The bottoms of the oxidation chambers are connected or the tops of the oxidation chambers are connected. The liquid flows through the oxidation chambers in sequence and reacts with the oxidation gas entering through the oxidation gas inlets. By adopting four oxidation chambers, the height of the oxidation tower is greatly reduced. In this oxidation tower, the oxidation chambers are sorted before and after according to the order in which the liquid flows through the oxidation chambers, and the flow direction of the liquid in two adjacent oxidation chambers before and after is opposite. The above folded-back liquid flow can achieve the reduction of the height of the oxidation tower without reducing the length of the liquid flow path, that is, without shortening the reaction time between the liquid and the oxidation gas, thus achieving the reduction of the height of the oxidation tower and the improvement of the liquid treatment effect.

[0108] In addition, the oxidation tower of the present application can also appropriately increase the oxidation chamber according to the degree of contamination of the liquid, thereby further extending the oxidation reaction time of the liquid and further improving the treatment effect of the liquid; and it can extend the liquid treatment path without increasing the height of the oxidation tower, ensuring that liquids with different degrees of contamination can be effectively treated.

[0109] The oxidation tower group proposed in the present application comprises at least two oxidation towers and a connecting partition, wherein the two oxidation towers are connected and separated by the connecting partition, wherein the oxidation tower adopts the above oxidation tower. The oxidation tower group can treat multiple wastewaters or a large amount of wastewater at the same time, thereby improving the treatment efficiency.

[0110] The exemplary embodiments of the oxidation tower and oxidation tower group proposed in the present application are described and / or illustrated in detail above. However, the embodiments of the present application are not limited to the specific embodiments described herein. On the contrary, the components and / or steps of each embodiment can be used independently and staggered with other components and / or steps described herein. Each component and / or each step of an embodiment can also be used in combination with other components and / or steps of other embodiments. When introducing the elements / components / etc. described and / or illustrated herein, the terms "one", "an" and "above" are used to indicate the presence of one or more elements / components / etc.

[0111] The embodiments of the present application are not limited to the specific embodiments described herein, on the contrary, the components of each embodiment can be used independently and staggered with other components described herein. Each component of an embodiment can also be used in combination with other components of other embodiments. In the description of this specification, the description of the terms "one embodiment", "some embodiments", "other 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 application embodiment. 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.

[0112] In the embodiments, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments can be understood according to the specific circumstances.

[0113] Although the oxidation tower and oxidation tower group proposed in this application have been described according to different specific embodiments, those skilled in the art will recognize that changes can be made to the implementation of this application within the spirit and scope of the claims.

Claims

1. An oxidation tower for liquid treatment, characterized in that, The oxidation tower includes: A first oxidation chamber, a second oxidation chamber, a third oxidation chamber, and a fourth oxidation chamber. Oxidation gas inlets are provided at the bottoms of the first oxidation chamber, the second oxidation chamber, the third oxidation chamber, and the fourth oxidation chamber. The bottom of the first oxidation chamber communicates with the second oxidation chamber, the top of the second oxidation chamber communicates with the third oxidation chamber, and the bottom of the third oxidation chamber communicates with the fourth oxidation chamber. After the liquid enters the first oxidation chamber, it sequentially flows through the second oxidation chamber, the third oxidation chamber, and the fourth oxidation chamber, and undergoes an oxidation reaction with the oxidation gas entering through the oxidation gas inlets. The flow direction of the liquid in the first oxidation chamber is opposite to that in the second oxidation chamber, the flow direction of the liquid in the second oxidation chamber is opposite to that in the third oxidation chamber, and the flow direction of the liquid in the third oxidation chamber is opposite to that in the fourth oxidation chamber.

2. The oxidation tower according to claim 1, characterized in that, The first oxidation chamber includes a first inlet, a first outlet, and a first oxidation gas inlet. The first inlet is provided at the top of the first oxidation chamber, the first outlet is provided at the bottom of the first oxidation chamber, and the first oxidation gas inlet is provided between the first inlet and the first outlet and is close to the first outlet. The second oxidation chamber includes a second inlet, a second outlet, and a second oxidation gas inlet. The second inlet is provided at the bottom of the second oxidation chamber, the second outlet is provided at the top of the second oxidation chamber, and the second oxidation gas inlet is provided between the second inlet and the second outlet and is close to the second inlet. The third oxidation chamber includes a third inlet, a third outlet, and a third oxidation gas inlet. The third inlet is provided at the top of the third oxidation chamber, the third outlet is provided at the bottom of the third oxidation chamber, and the third oxidation gas inlet is provided between the third inlet and the third outlet and is close to the third outlet. The fourth oxidation chamber includes a fourth inlet, a fourth outlet, and a fourth oxidation gas inlet. The fourth inlet is provided at the bottom of the fourth oxidation chamber, the fourth outlet is provided at the top of the fourth oxidation chamber, and the fourth oxidation gas inlet is provided between the fourth inlet and the fourth outlet and is close to the fourth inlet. Among them, the first outlet communicates with the second inlet. After the liquid enters the first oxidation chamber from the first inlet, it sequentially flows through the first oxidation gas inlet, the first outlet, the second inlet, and the second oxidation gas inlet, and flows out from the second outlet. The second outlet communicates with the third inlet. The liquid flows into the third oxidation chamber from the second outlet and sequentially flows through the third inlet, the third oxidation gas inlet, and the third outlet. The third outlet communicates with the fourth inlet. The liquid flows into the fourth oxidation chamber from the third outlet and sequentially flows through the fourth inlet, the fourth oxidation gas inlet, and the fourth outlet.

3. The oxidation tower according to claim 2, characterized in that, The first oxidation chamber and the second oxidation chamber are separated by a first partition board, and the first partition board is provided with an overflow hole or a through hole to communicate the first outlet and the second inlet.

4. The oxidation tower according to claim 2, characterized in that, The third oxidation chamber and the second oxidation chamber are separated by a second partition board, and the second partition board has a notch which communicates the second outlet and the third inlet.

5. The oxidation tower according to claim 2, wherein, The third oxidation chamber and the fourth oxidation chamber are separated by a third partition board, and the third partition board is provided with an overflow hole or a through hole to communicate the third outlet and the fourth inlet.

6. The oxidation tower according to claim 5, characterized in that, A fourth partition board is arranged between the fourth oxidation chamber and the first oxidation chamber, and the fourth partition board completely separates the first oxidation chamber and the fourth oxidation chamber.

7. The oxidation tower according to any one of claims 1-5, characterized in that, The direction from the top to the bottom of the oxidation chamber is defined as the axial direction, and the plane perpendicular to the axial direction is the cross-section; the cross-sections of the oxidation chamber and the oxidation tower are both square.

8. The oxidation tower according to claim 7, wherein The oxidation chambers have the same height, and the ratio of the height of the oxidation chamber to the side length of the square ranges from 8 to 10.

9. The oxidation tower according to any one of claims 1-6 and 8, characterized in that, The oxidation gas is ozone and the liquid is wastewater.

10. An oxidation tower group, characterized in that, It includes at least two oxidation towers and a connecting partition board. The two oxidation towers are connected and separated by the connecting partition board, wherein the oxidation tower adopts the oxidation tower according to any one of claims 1-9.

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