Catalytic ozonation water treatment device with online cleaning function

Abstract

The utility model discloses a catalytic ozonation water treatment device with an on-line cleaning function, which belongs to the technical field of water treatment and comprises a reaction tank body, a water outlet tank, an ozone generator, a water storage tank and an ozone destructor, a plurality of catalyst bed layers and an ultrasonic cleaning assembly are fixedly mounted in the reaction tank body; a water outlet pipe is fixedly mounted on the upper side of the reaction tank body; an ozone pressurizing air pump is arranged between the ozone generator and the reaction tank body; a water feeding pump is arranged between the water storage tank and the reaction tank body; a circulating assembly is mounted on the outer wall of the reaction tank body; and the ozone destructor is communicated with the top of the reaction tank body through a gas pipeline. By means of the mode, the catalyst is regularly cleaned, surface pollutants are cleaned, microcosmic pore channels of the catalyst are dredged, the contact effect of ozone, waste water and the catalyst can be improved, and the water treatment effect is effectively improved; the enrichment and hardening of pollutants in the catalyst are reduced, the service life of the catalyst is prolonged, and the operation cost of the system is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to a catalytic ozone oxidation water treatment device with an online cleaning function. Background Art

[0002] After physical filtration of wastewater, the organic matter therein is usually degraded by the ozone catalytic oxidation method; under the action of a solid catalyst, ozone generates hydroxyl radicals to degrade the organic matter in the wastewater, and the commonly used catalysts are formed catalysts such as spherical particles and honeycombs.

[0003] For example, Chinese Patent CN215975127U discloses a novel water treatment ozone catalytic oxidation tower, which is provided with structures such as a water pump, a motor, a rotating shaft, and a stirring device, and accelerates the contact of wastewater, ozone, and catalyst through the stirring device, thereby degrading the organic matter in the wastewater.

[0004] However, the organic matter and solid substances in the wastewater, as well as the intermediate substances and salts generated during the reaction, will deposit on the surface of the catalyst, blocking the channels, reducing the contact opportunity between the gas-liquid and the active sites on the catalyst surface, resulting in a decline in catalytic performance, a reduction in the wastewater treatment effect, and a shortening of the catalyst replacement cycle, leading to an increase in operating costs.

[0005] Based on this, the utility model designs a catalytic ozone oxidation water treatment device with an online cleaning function to solve the above problems. Content of the Utility Model

[0006] Aiming at the above-mentioned shortcomings of the prior art, the utility model provides a catalytic ozone oxidation water treatment device with an online cleaning function.

[0007] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0008] A catalytic ozone oxidation water treatment device with an online cleaning function includes a reaction tank body, a water outlet tank, an ozone generator, a water storage tank, and an ozone destructor fixedly installed on a substrate;

[0009] The ozone destructor, the water outlet tank, the reaction tank body, the ozone generator, and the water storage tank are sequentially distributed on the substrate from left to right. A plurality of catalyst beds and an ultrasonic cleaning assembly are fixedly installed in the reaction tank body; an outlet pipe is fixedly installed on the upper side of the reaction tank body, the upper end of the outlet pipe is communicated with the inside of the reaction tank body, and the lower end of the outlet pipe is aligned with the water outlet tank;

[0010] An ozone booster pump is arranged between the ozone generator and the reaction tank body. The gas outlet end of the ozone generator and the gas inlet end of the ozone booster pump are connected through a pipeline, and the gas outlet end of the ozone booster pump is connected with the bottom of the reaction tank body through a gas supply pipeline;

[0011] A water supply pump is arranged between the water storage tank and the reaction tank body. The water inlet end of the water supply pump is communicated with the water storage tank through a water pipe, and the water outlet end of the water supply pump is communicated with the lower side of the reaction tank body through a water inlet pipe; a circulation assembly is installed on the outer wall of the reaction tank body; the ozone destructor is communicated with the top of the reaction tank body through an air delivery pipeline.

[0012] Furthermore, the number of the ultrasonic cleaning assemblies is one more than the number of the catalyst beds.

[0013] Furthermore, the catalyst beds are evenly distributed at equal intervals inside the reaction tank body.

[0014] Furthermore, the catalyst beds and the ultrasonic cleaning assemblies are alternately distributed inside the reaction tank body.

[0015] Furthermore, a titanium alloy microporous aeration device is fixedly installed at one end of the air delivery pipeline located inside the reaction tank body.

[0016] Furthermore, the ultrasonic cleaning assembly includes a ultrasonic generator and ultrasonic vibration rods. The ultrasonic generator is fixedly installed on the outer wall of the reaction tank body, and the output end of the ultrasonic generator passes through the outer wall of the reaction tank body and is fixedly connected with the end of the ultrasonic vibration rod inside the reaction tank body.

[0017] Furthermore, multiple ultrasonic vibration rods are evenly distributed at equal intervals inside the reaction tank body.

[0018] Furthermore, the circulation assembly includes a circulation pipeline and an external circulation pump. The upper end of the circulation pipeline is fixedly installed on the upper side of the reaction tank body, and the upper end of the circulation pipeline is located between the water outlet pipe and the uppermost ultrasonic vibration rod; the lower end of the circulation pipeline is fixedly installed on the lower side of the reaction tank body, and the lower end of the circulation pipeline is located between the water inlet pipe and the lowermost ultrasonic vibration rod; an external circulation pump is fixedly installed in the middle of the circulation pipeline.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] This device regularly cleans the catalyst, removes surface pollutants and dredges the microscopic pores of the catalyst, can improve the contact effect between ozone, wastewater and the catalyst, and effectively improves the water treatment effect;

[0021] Regular cleaning reduces the enrichment and hardening of pollutants in the catalyst, can extend the service life of the catalyst, and saves the operation cost of the system;

[0022] The cleaning device uses ultrasonic waves to promote the generation of ·OH free radicals during the ozone catalysis process, and has a synergistic effect on the catalytic reaction. Description of the Drawings

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0024] Figure 1 Is a three-dimensional view of a catalytic ozone oxidation water treatment device with an on-line cleaning function of the present invention;

[0025] Figure 2 Is a front view of a catalytic ozone oxidation water treatment device with an on-line cleaning function of the present invention;

[0026] Figure 3 Is a three-dimensional view after removing part of the outer shell occlusion of the reaction tank body and its connection structure;

[0027] Figure 4 Is a schematic diagram of the operation of a catalytic ozone oxidation water treatment device with an on-line cleaning function of the present invention.

[0028] The reference numerals in the figure respectively represent:

[0029] 1. Reaction tank body; 11. Catalyst bed layer; 12. Outlet pipe; 2. Water outlet tank; 3. Ozone generator; 31. Ozone booster air pump; 32. Air supply pipeline; 4. Water storage tank; 41. Feed water pump; 42. Inlet pipe; 5. Ultrasonic cleaning assembly; 51. Ultrasonic generator; 52. Ultrasonic vibration rod; 6. Circulation assembly; 61. Circulation pipeline; 62. External circulation pump; 7. Titanium alloy microporous aeration device; 8. Ozone destructor. Detailed implementation manners

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the protection scope of the present invention.

[0031] The "left", "right", "front", "rear", "upper" and "lower" mentioned in the following description are oriented in the perspective direction of the front view.

[0032] In some embodiments, please refer to the specification appendix Figures 1-4, A catalytic ozone oxidation water treatment device with an online cleaning function, comprising a reaction tank body 1 fixedly installed on a substrate, a water outlet tank 2, an ozone generator 3, a water storage tank 4 and an ozone destructor 8;

[0033] The ozone destructor 8, the water outlet tank 2, the reaction tank body 1, the ozone generator 3 and the water storage tank 4 are sequentially distributed on the substrate from left to right. A plurality of catalyst beds 11 and an ultrasonic cleaning assembly 5 are fixedly installed in the reaction tank body 1. An outlet pipe 12 is fixedly installed on the upper side of the reaction tank body 1. The upper end of the outlet pipe 12 is communicated with the inside of the reaction tank body 1, and the lower end of the outlet pipe 12 is aligned with the water outlet tank 2;

[0034] An ozone booster pump 31 is arranged between the ozone generator 3 and the reaction tank body 1. The air outlet end of the ozone generator 3 and the air inlet end of the ozone booster pump 31 are communicated through a pipeline, and the air outlet end of the ozone booster pump 31 is communicated with the bottom of the reaction tank body 1 through a gas supply pipeline 32;

[0035] A water supply pump 41 is arranged between the water storage tank 4 and the reaction tank body 1. The water inlet end of the water supply pump 41 is communicated with the water storage tank 4 through a water pipe, and the water outlet end of the water supply pump 41 is communicated with the lower side of the reaction tank body 1 through a water inlet pipe 42. A circulation assembly 6 is installed on the outer wall of the reaction tank body 1. The ozone destructor 8 is communicated with the top of the reaction tank body 1 through an air transmission pipeline.

[0036] The number of the ultrasonic cleaning assemblies 5 is one more than the number of the catalyst beds 11.

[0037] The catalyst beds 11 are evenly distributed at equal intervals inside the reaction tank body 1.

[0038] The catalyst beds 11 and the ultrasonic cleaning assemblies 5 are alternately distributed inside the reaction tank body 1.

[0039] One end of the gas supply pipeline 32 located inside the reaction tank body 1 is fixedly installed with a titanium alloy microporous aeration device 7.

[0040] The catalyst beds 11 are filled with and loaded with spherical or honeycomb-shaped ozone catalysts of metal oxides. The ozone dosing concentration range is 50 - 500 mg / L,

[0041] In this embodiment, when the catalytic ozonation water treatment device with an online cleaning function is operating normally, the wastewater in the water storage tank 4 is filtered and pretreated, and then conveyed into the reaction tank 1 from the lower side of the reaction tank 1 through the feed water pump 41 and the water inlet pipe 42. The wastewater flows through multiple catalyst beds 11 from bottom to top in sequence; the ozone generated by the ozone generator 3 is conveyed into the reaction tank 1 from the bottom of the reaction tank 1 through the ozone booster pump 31. The ozone enters the reaction tank 1 through the titanium alloy microporous aeration device 7 and mixes with the wastewater. The titanium alloy microporous aeration device 7 increases the turbulence during the process of ozone entering the wastewater; the organic matter in the wastewater is degraded under the action of the catalyst bed 11 and ozone. The treated water flows into the water outlet tank 2 through the water outlet pipe 12; the mixed gas containing residual ozone after the reaction is discharged from the top exhaust port and then enters the post - ozone destructor 8. The residual ozone is decomposed into oxygen through the ozone destructor 8; a part of the wastewater after the reaction is conveyed into the lower part of the reactor again through the circulation assembly 6 for mixing; when the reaction proceeds for a period of time, according to the water quality of the effluent, the ultrasonic cleaning assembly 5 is started, and the power of the ultrasonic cleaning assembly 5 is adjusted to clean the bed for 2 - 15 minutes; the particulate matter in the catalyst pores detaches from the pore wall surface under the action of ultrasonic cavitation and returns to the main body of the wastewater, thereby reducing the enrichment of organic matter and salts in the wastewater on the catalyst surface, dredging the pores of the catalyst particles, and ensuring the full contact of the active sites on the surface and the inner wall of the pores with the wastewater and ozone gas; at the same time, under the action of ultrasonic cavitation, ozone and wastewater locally generate high temperature and high pressure, increasing the gas - liquid contact area, enhancing the mixing and turbulence effect of the wastewater, enhancing mass transfer, promoting the generation of ·OH free radicals, and also having a synergistic effect on the catalytic reaction; cleaning the surface pollutants and dredging the microscopic pores of the catalyst can improve the contact effect between ozone, wastewater and the catalyst, effectively improve the water treatment effect; and reducing the enrichment and caking of pollutants in the catalyst can extend the service life of the catalyst and save the system operation cost.

[0042] In some embodiments, as Figures 1-4 shown, as a preferred embodiment of the present utility model, the ultrasonic cleaning assembly 5 includes an ultrasonic generator 51 and an ultrasonic vibrator bar 52. The ultrasonic generator 51 is fixedly installed on the outer wall of the reaction tank 1. The output end of the ultrasonic generator 51 passes through the outer wall of the reaction tank 1 and is fixedly connected to the end of the ultrasonic vibrator bar 52 inside the reaction tank 1;

[0043] A plurality of ultrasonic vibrator bars 52 are evenly distributed at equal intervals inside the reaction tank 1;

[0044] The circulation component 6 includes a circulation pipeline 61 and an external circulation pump 62. The upper end of the circulation pipeline 61 is fixedly installed on the upper side of the reaction tank body 1, and the upper end of the circulation pipeline 61 is located between the water outlet pipe 12 and the uppermost ultrasonic vibrator 52; the lower end of the circulation pipeline 61 is fixedly installed on the lower side of the reaction tank body 1, and the lower end of the circulation pipeline 61 is located between the water inlet pipe 42 and the lowermost ultrasonic vibrator 52; an external circulation pump 62 is fixedly installed in the middle of the circulation pipeline 61.

[0045] The frequency of the ultrasonic vibrator for cleaning is 20 - 45 kHz, and the power is 100 - 1000 W.

[0046] In this embodiment, when the ultrasonic cleaning component 5 and the circulation component 6 are working normally, the external circulation pump 62 drives a part of the reacted wastewater on the upper layer of the reaction tank body 1 to be transported through the circulation pipeline 61 to the lower part of the circulation pipeline 61 for catalysis here; when the reaction proceeds for a period of time, according to the water quality of the effluent, the ultrasonic generator 51 is started, and the power of the ultrasonic generator 51 is adjusted. The ultrasonic generator 51 and the ultrasonic vibrator 52 cooperate to generate ultrasonic waves. Through the ultrasonic waves, the particulate matters in the catalyst pores are detached from the pore wall under the action of ultrasonic cavitation, so as to realize the cleaning of the catalyst bed layer 11; at the same time, it promotes the generation of ·OH free radicals during the ozone catalysis process, and has a synergistic effect on the catalytic reaction.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A catalytic ozone oxidation water treatment device with an online cleaning function, comprising a reaction tank body (1), a water outlet tank (2), an ozone generator (3), a water storage tank (4) and an ozone destructor (8), characterized in that: The ozone destructor (8), the water outlet tank (2), the reaction tank body (1), the ozone generator (3) and the water storage tank (4) are sequentially distributed on the substrate from left to right. A plurality of catalyst beds (11) and an ultrasonic cleaning assembly (5) are fixedly installed in the reaction tank body (1); an outlet pipe (12) is fixedly installed on the upper side of the reaction tank body (1), the upper end of the outlet pipe (12) is communicated with the inside of the reaction tank body (1), and the lower end of the outlet pipe (12) is aligned with the water outlet tank (2); An ozone booster pump (31) is arranged between the ozone generator (3) and the reaction tank body (1). The gas outlet end of the ozone generator (3) and the gas inlet end of the ozone booster pump (31) are communicated through a pipeline, and the gas outlet end of the ozone booster pump (31) is communicated with the bottom of the reaction tank body (1) through an air supply pipeline (32); A water supply pump (41) is arranged between the water storage tank (4) and the reaction tank body (1). The water inlet end of the water supply pump (41) is communicated with the water storage tank (4) through a water pipe, and the water outlet end of the water supply pump (41) is communicated with the lower side of the reaction tank body (1) through a water inlet pipe (42); A circulation assembly (6) is installed on the outer wall of the reaction tank body (1); the ozone destructor (8) is communicated with the top of the reaction tank body (1) through an air transmission pipeline.

2. The catalytic ozone oxidation water treatment device with an online cleaning function according to claim 1, characterized in that The number of the ultrasonic cleaning assemblies (5) is one more than the number of the catalyst beds (11).

3. The catalytic ozone oxidation water treatment device with an online cleaning function according to claim 2, wherein The catalyst beds (11) are evenly distributed at equal intervals inside the reaction tank body (1).

4. The catalytic ozone oxidation water treatment device with an online cleaning function according to claim 3, characterized in that, The catalyst beds (11) and the ultrasonic cleaning assemblies (5) are alternately distributed inside the reaction tank body (1).

5. The catalytic ozone oxidation water treatment device with an online cleaning function according to claim 4, characterized in that One end of the air supply pipeline (32) located inside the reaction tank body (1) is fixedly installed with a titanium alloy microporous aeration device (7).

6. The catalytic ozone oxidation water treatment device with an online cleaning function according to claim 5, characterized in that, The ultrasonic cleaning assembly (5) includes an ultrasonic generator (51) and an ultrasonic vibrating rod (52). The ultrasonic generator (51) is fixedly installed on the outer wall of the reaction tank body (1), and the output end of the ultrasonic generator (51) passes through the outer wall of the reaction tank body (1) and is fixedly connected with the end of the ultrasonic vibrating rod (52) inside the reaction tank body (1).

7. The catalytic ozone oxidation water treatment device with an online cleaning function according to claim 6, wherein A plurality of ultrasonic vibrating rods (52) are evenly distributed at equal intervals inside the reaction tank body (1).

8. The catalytic ozone oxidation water treatment device with an online cleaning function according to claim 7, wherein, The circulation assembly (6) includes a circulation pipeline (61) and an external circulation pump (62). The upper end of the circulation pipeline (61) is fixedly installed on the upper side of the reaction tank body (1), and the upper end of the circulation pipeline (61) is located between the outlet pipe (12) and the uppermost ultrasonic vibrating rod (52); the lower end of the circulation pipeline (61) is fixedly installed on the lower side of the reaction tank body (1), and the lower end of the circulation pipeline (61) is located between the water inlet pipe (42) and the lowermost ultrasonic vibrating rod (52); An external circulation pump (62) is fixedly installed in the middle of the circulation pipeline (61).

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