CN114671511B

CN114671511B - Micro-nano bubble ozone adding device

Info

Publication number: CN114671511B
Application number: CN202210423154.6A
Authority: CN
Inventors: 王晓飞; 莫明斋
Original assignee: Qingdao Wanyuan Environment Technology Co ltd
Current assignee: Qingdao Wanyuan Environment Technology Co ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2023-05-16
Anticipated expiration: 2042-04-21
Also published as: CN114671511A

Abstract

The invention discloses a micro-nano bubble ozone adding device, which is characterized by comprising an adding pool for containing sewage to be subjected to catalytic oxidation treatment; an ozone generator for providing ozone; a mixing pump for mixing the sewage pumped out of the feeding tank with ozone sent out by the ozone generator; a bubble generator for forming micro-nano bubbles from ozone in the wastewater and ozone mixture and feeding the wastewater and ozone mixture into the dosing tank; the blocking mechanism is arranged in the feeding pool and used for blocking micro-nano bubbles from floating upwards; through setting up bubble generator and blocking mechanism for ozone can produce micro-nano bubble and can reduce micro-nano bubble's rising speed, has improved ozone's utilization ratio.

Description

Micro-nano bubble ozone adding device

Technical Field

The invention relates to the technical field of water treatment, in particular to a micro-nano bubble ozone adding device.

Background

When sewage is treated, pollutants in the sewage need to be treated, and the catalytic oxidation technology based on ozone is widely applied to sewage treatment technology.

When ozone is used for carrying out catalytic oxidation treatment on sewage, ozone is added into an air floatation tank, and the ozone contacts with pollutants in the sewage in the floating process to realize catalytic oxidation reaction; however, the existing ozone adding device has high floating speed of ozone, so that the ozone escapes from the air floatation tank without complete reaction, and the problem of low ozone utilization rate exists, so that a large amount of ozone is wasted.

Disclosure of Invention

Aiming at the defects existing in the prior art, the invention aims to provide the micro-nano bubble ozone adding device, which enables ozone to generate micro-nano bubbles and reduce the rising speed of the micro-nano bubbles by arranging a bubble generator and a blocking mechanism, thereby improving the utilization rate of ozone.

In order to achieve the above purpose, the present invention provides the following technical solutions: the micro-nano bubble ozone adding device comprises an adding pool for containing sewage to be subjected to catalytic oxidation treatment;

an ozone generator for providing ozone;

a mixing pump for mixing the sewage pumped out of the feeding tank with ozone sent out by the ozone generator;

a bubble generator for forming micro-nano bubbles from ozone in the wastewater and ozone mixture and feeding the wastewater and ozone mixture into the dosing tank;

and the blocking mechanism is arranged in the feeding pool and is used for blocking micro-nano bubbles from floating upwards.

By adopting the technical scheme, after the sewage and the ozone are mixed by the mixing pump, the ozone is formed into micro-nano bubbles by the bubble generator, then the sewage and the micro-nano bubbles are sent into the feeding tank together, the diameters of the micro-nano bubbles are small, so that the bubbles are in an emulsified shape and are uniformly distributed, and after the micro-nano bubbles are generated, the specific surface area between the gas phase and the liquid phase is greatly increased, so that the ozone utilization rate is greatly improved; through blocking the speed that the mechanism can slow down micro-nano bubble come-up for ozone can be more abundant with throwing the sewage reaction in the pond, further improvement ozone's utilization ratio.

The invention is further provided with: the bubble generator comprises a first generating plate and a second generating plate, wherein the first generating plate and the second generating plate are provided with pressure release holes, the number of the pressure release holes in the first generating plate is smaller than that in the second generating plate, and the mixture of sewage and ozone sequentially passes through the first generating plate and the second generating plate.

By adopting the technical scheme, the mixture of sewage and ozone passes through the pressure release holes in the first generation plate and then passes through the pressure release holes in the second generation plate, so that the pressure of the sewage is released from few holes to multiple holes, and the ozone forms micro-nano bubbles.

The invention is further provided with: the bubble generator further comprises a generating column, a plurality of spiral holes penetrating through the generating column in a spiral mode are formed in the generating column, and the number of the spiral holes is smaller than that of the pressure release holes in the first generating plate.

By adopting the technical scheme, the number of the spiral holes is smaller than that of the pressure release holes on the first generation plate, and one pressure release process is added, so that micro-nano bubbles can be formed by ozone well.

The invention is further provided with: the pore size of the spiral hole gradually decreases from one end of the spiral hole far away from the first generating plate to one end of the spiral hole close to the first generating plate.

By adopting the technical scheme, the change of the pore diameter of the spiral hole is set, so that the pressurizing process is realized in the process that the mixture of sewage and ozone passes through the spiral hole, the pressure difference between the sewage passing through the spiral hole and the pressure release hole passing through the first generation plate is further increased, and the ozone can better form nano bubbles in the pressure release process.

The invention is further provided with: the spiral hole gradually contracts to the axis of the generating column from one end, far away from the first generating plate, of the spiral hole to one end, close to the first generating plate, of the spiral hole.

The invention is further provided with: the connecting rings are arranged between the first generating plate and the second generating plate and between the generating column and the second generating plate, and are used for forming a transition space between the first generating plate and the second generating plate and between the generating column and the second generating plate.

The invention is further provided with: the mixing pump sends the mixture of sewage and ozone into the feeding pool through a pipeline, and the bubble generator is positioned in one end of the pipeline extending into the feeding pool.

The invention is further provided with: a fixing ring is fixedly connected in the pipeline, and when the bubble generator is fixed in the pipeline, the generating column is abutted against the fixing ring;

the generating column is far away from one end of the first generating plate and is provided with a mounting ring, a plurality of telescopic rods inserted into the mounting ring are arranged on the outer side of the mounting ring, a bolt is arranged on the bubble generator, when the bolt is screwed into the mounting ring, the telescopic rods outwards extend and are tightly attached to one side of the mounting ring far away from the generating column, and when the bolt is screwed out of the mounting ring, the telescopic rods shrink into the mounting ring and can penetrate through the mounting ring.

Through adopting above-mentioned technical scheme, through the setting of solid fixed ring and telescopic link for the installation and the dismantlement of bubble generator are convenient and fast more.

The invention is further provided with: the bubble generator is arranged at the middle position of the bottom of the adding tank and releases micro-nano bubbles upwards;

the blocking mechanism comprises a plurality of groups of blocking components which are arranged along the vertical direction;

the blocking component comprises a dispersing plate which is used for dispersing micro-nano bubbles released by the bubble generator towards the wall of the feeding tank;

and the collecting ring is positioned above the dispersing plate and is used for collecting micro-nano bubbles at the position, close to the barrel wall, of the feeding pool towards the position, close to the center of the feeding pool.

Through adopting above-mentioned technical scheme, through the setting of dispersion plate and collecting ring, prolonged the path length in the middle of the micro-nano bubble come-up process, increased the come-up time of micro-nano bubble.

The invention is further provided with: the dispersing plate and the collecting ring both rotate around a vertical axis;

the dispersing plate bottom fixedly connected with a plurality of arc dispersion poles of arranging around vertical axis, the protruding one side of arc of dispersion pole is located dispersing plate and faces to rotation direction one side, collects a plurality of arc collecting levers of ring bottom fixedly connected with, and the protruding one side of arc of collecting lever is located collecting lever back to rotation direction one side.

In summary, compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, the bubble generator and the blocking mechanism are arranged, so that micro-nano bubbles can be generated by ozone, the rising speed of the micro-nano bubbles can be reduced, and the utilization rate of the ozone is improved;

2. in the invention, the mixture of sewage and ozone passes through the pressure release holes in the first generation plate and then passes through the pressure release holes in the second generation plate, so that the pressure of the sewage is released from few holes to multiple holes, and the ozone forms micro-nano bubbles;

3. according to the invention, the number of the spiral holes is smaller than that of the pressure release holes on the first generation plate, and one pressure release process is added, so that micro-nano bubbles can be formed by ozone well;

4. according to the invention, through the arrangement of the fixed ring and the telescopic rod, the installation and the disassembly of the bubble generator are more convenient and quicker;

5. the invention prolongs the path length in the micro-nano bubble floating process and increases the floating time of the micro-nano bubble through the arrangement of the dispersing plate and the collecting rod.

Drawings

FIG. 1 is a schematic view of the overall structure of an embodiment;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is a cross-sectional view of an embodiment of a dosing tank;

FIG. 4 is a schematic diagram of a transfer tube and bubble generator of an embodiment;

FIG. 5 is a schematic diagram of a bubble generator of an embodiment;

FIG. 6 is an exploded view of the bubble generator of the embodiment;

FIG. 7 is a cross-sectional view of a bubble generator of an embodiment;

FIG. 8 is an enlarged schematic view of portion B of FIG. 7;

FIG. 9 is a schematic view of a blocking mechanism of an embodiment;

fig. 10 is an enlarged schematic view of a portion C of fig. 9.

In the figure: 1. adding a pool; 2. an ozone generator; 21. a gas pipe; 211. a check valve; 3. a mixing pump; 31. a delivery tube; 311. a fixing ring; 312. a seal ring; 4. a bubble generator; 41. a first generation plate; 42. a second generation plate; 421. a connecting ring; 43. a pressure release hole; 44. a generating column; 441. a spiral hole; 45. a mounting ring; 46. a fixed rod; 461. a receiving hole; 462. a chute; 47. a telescopic rod; 471. a slide block; 48. a spring; 5. a water suction pump; 51. a water suction pipe; 52. a water inlet pipe; 6. a blocking assembly; 61. a dispersion plate; 62. a collection ring; 63. a dispersion rod; 64. a collection rod; 65. a rotating shaft; 66. a cross bar; 7. a water return pipe; 71. a jet device; 72. a pressure detecting instrument.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings, and based on the embodiments in the present application, other similar embodiments obtained by those skilled in the art without making creative efforts should fall within the scope of protection of the present application. In addition, directional words such as "upper", "lower", "left", "right", and the like, as used in the following embodiments are merely directions with reference to the drawings, and thus, the directional words used are intended to illustrate, not to limit, the invention.

The invention will be further described with reference to the drawings and preferred embodiments.

Examples: the micro-nano bubble ozone adding device comprises an adding pool 1 for containing sewage to be subjected to catalytic oxidation treatment, an ozone generator 2 for providing ozone, a mixing pump 3 for mixing the sewage pumped in the adding pool 1 with the ozone sent out by the ozone generator 2, a bubble generator 4 for forming micro-nano bubbles by the sewage mixed by the mixing pump 3 and the ozone in the ozone mixture, and a blocking mechanism for blocking the micro-nano bubbles in the adding pool 1 from floating. The bubble generator 4 sends the mixture of sewage and ozone into the dosing tank 1 after the ozone forms micro-nano bubbles.

The sewage in the feeding pool 1 is pumped out and then enters the mixing pump 3, the ozone generated by the ozone generator 2 is also sent into the mixing pump 3, the mixing pump 3 mixes the sewage with the ozone, the sewage and ozone mixture formed after mixing enters the bubble generator 4, the bubble generator 4 can form micro-nano bubbles with the ozone, and then the bubble generator 4 sends the sewage and ozone mixture into the feeding pool 1. The micro-nano bubbles have small diameters, are emulsified and uniformly distributed, and after the micro-nano bubbles are generated, the specific surface area between the gas phase and the liquid phase is greatly increased, so that the ozone utilization rate is greatly improved; after the micro-nano bubbles enter the feeding pool 1, the floating speed of the micro-nano bubbles is slowed down under the blocking action of the blocking mechanism, so that the ozone utilization rate is further improved.

Specifically, the present embodiment further includes a water suction pump 5 for pumping out the sewage in the dosing tank 1 and then feeding the sewage into the mixing pump 3; the water suction pump 5 is connected with the feeding pool 1 through a water suction pipe 51 and is connected with the mixing pump 3 through a water inlet pipe 52; the water inlet end of the mixing pump 3 is connected with the water inlet pipe 52, the water outlet end of the mixing pump 3 is connected with a pipeline which is a conveying pipe 31, and one end of the conveying pipe 31 far away from the mixing pump 3 extends into the feeding pool 1; the bubble generator 4 is arranged in the end of the delivery pipe 31 that protrudes into the mixing pump 3. Ozone generator 2 delivers ozone into inlet pipe 52 so that ozone is fed into mixing pump 3 through inlet pipe 52 together with the sewage.

Specifically, the water inlet pipe 52 is located at a position where the chamber for mixing ozone and sewage in the mixing pump 3 is near the bottom, the conveying pipe 31 is located at a position where the chamber for mixing ozone and sewage in the mixing pump 3 is near the top, and ozone gas is not easily accumulated at the top of the chamber for mixing ozone and sewage in the mixing pump by setting the positions of the conveying pipe 31 and the water inlet pipe 52.

Specifically, the embodiment further includes a water return pipe 7, wherein one end of the water return pipe 7 is fixedly connected to the conveying pipe 31, and the other end is fixedly connected to the water inlet pipe 52; the ozone generator 2 is provided with a gas pipe 21, the gas pipe 21 is fixed on the water return pipe 7, ozone generated by the ozone generator 2 enters the water return pipe 7 through the gas pipe 21, and sewage and ozone in the water return pipe 7 are initially mixed and then enter the mixing pump 3.

Specifically, the ejector 71 is disposed on the water return pipe 7, and the ejector 71 can increase the jet pressure of the sewage, so that the water return pipe 7 can provide a larger suction force to suck the odor from the air delivery pipe 21, and the ejector 71 is disposed at the joint of the water return pipe 7 and the air delivery pipe 21. Specifically, the check valve 211 is provided in the air delivery pipe 21, and air in the water return pipe 7 can be prevented from entering the air delivery pipe 21 by the check valve 211. Specifically, the return pipe is further provided with a pressure detecting instrument 72, and the pressure of the water in the return pipe can be detected by the pressure detecting instrument 72.

Specifically, the ball valve is provided in the delivery pipe 31, and by providing the ball valve, the opening and closing of the delivery pipe 31 can be controlled, and the flow rate of water in the delivery pipe 31 can be controlled.

Specifically, referring to fig. 4, 5 and 6, the bubble generator 4 includes a first generating plate 41 and a second generating plate 42, a plurality of pressure release holes 43 are formed in each of the first generating plate 41 and the second generating plate 42, the number of the pressure release holes 43 in the first generating plate 41 is smaller than the number of the pressure release holes 43 in the second generating plate 42, a mixture of sewage and ozone sequentially passes through the first generating plate 41 and the second generating plate 42, and the water pressure of the mixture of sewage and ozone passing through the pressure release holes 43 in the first generating plate 41 is smaller than the water pressure of the mixture of sewage and ozone passing through the pressure release holes 43 in the second generating plate 42, so that micro-nano bubbles are formed in the sewage during the pressure release.

Specifically, the bubble generator 4 further includes a generating column 44, and a plurality of spiral holes 441 penetrating the generating column 44 are formed in the generating column 44, and the number of the spiral holes 441 is smaller than the number of the pressure release holes 43 in the first generating plate 41. The number of the spiral holes 441 on the generating column 44 is smaller than the number of the pressure release holes 43 on the first generating plate 41, so that the water pressure of the mixture of sewage and ozone passing through the spiral holes 441 on the generating column 44 is smaller than the water pressure of the mixture of sewage and ozone passing through the pressure release holes 43 on the first generating plate 41; by providing the generating column 44, a pressure release process of the mixture of sewage and ozone can be increased, so that the ozone can form micro-nano bubbles more fully.

Specifically, the pore size of the spiral hole 441 gradually decreases from the end of the spiral hole 441 away from the first generation plate 41 to the end of the spiral hole 441 close to the first generation plate 41; the screw hole 441 gradually converges toward the axis of the generation column 44 from the end of the screw hole 441 away from the first generation plate 41 toward the end of the screw hole 441 closer to the first generation plate 41. By setting the aperture change and the spiral direction change of the spiral hole 441, the water pressure of the mixture of sewage and ozone is gradually increased in the process of flowing in the spiral hole 441, so that the water pressure difference between the mixture of sewage and ozone passing through the spiral hole 441 and the water pressure passing through the spiral hole 441 on the first generation plate 41 is increased, and the ozone can be more fully stroked into nano bubbles in the pressure release process.

By arranging the spiral holes 441 and the change of the spiral direction of the spiral holes 441, the flowing direction of the sewage is changed, so that the disturbance impact between the sewage and the ozone gas is more intense in the pressure release process, and the ozone can be more fully formed into micro-nano bubbles in the pressure release process.

Specifically, the connection rings 421 are disposed between the first and

second generating plates

41 and 42 and between the generating

columns

44 and 42, and the connection rings 421 are used to form a transition space between the first and

second generating plates

41 and 42 and between the generating

columns

44 and 42. So that the mixture of the sewage and the ozone passing through the spiral holes 441 can smoothly enter the pressure release holes 43 on the first generation plate 41, and the mixture of the sewage and the ozone passing through the pressure release holes 43 on the first generation plate 41 can smoothly enter the pressure release holes 43 on the second generation plate 42. Specifically, both connecting rings 421 are fixed to the first generation plate 41.

Specifically, the generating column 44 is a cylinder, and the first generating plate 41 and the second generating plate 42 are circular plates, and the generating column 44, the first generating plate 41, the second generating plate 42, and the two connecting rings 421 are coaxially arranged.

Referring to fig. 5, 7 and 8, a fixing ring 311 fixedly connected to the inner wall of the conveying pipe 31 is provided in the conveying pipe 31, when the bubble generator 4 is fixed in the conveying pipe 31, the outer sides of the generating column 44, the first generating plate 41, the second generating plate 42 and the connecting ring 421 are attached to the inner wall of the conveying pipe 31, and one end of the generating column 44 away from the first generating plate 41 is abutted against the fixing ring 311. Specifically, the generating post 44 is provided with a collar 45 far away from first generating plate 41 one end, and the outside of collar 45 is provided with a plurality of telescopic links 47 of inserting in the collar 45, is provided with a bolt on the bubble generator 4, and when the bolt was twisted in the collar 45, a plurality of telescopic links 47 outwards extended and paste tightly in collar 45 keep away from generating post 44 one side, when the bolt was twisted out in the collar 45, a plurality of telescopic links 47 inwards contracted and can pass in the collar 45 this moment in the telescopic link 47 to collar 45.

Specifically, the screw rod of the bolt sequentially penetrates through the second generating plate 42, the first generating plate 41 and the generating column 44, the head of the bolt is positioned at one side of the second generating plate 42 far away from the first generating plate 41, and the screw rod of the bolt is coaxial with the generating column 44; when the bolts are screwed on the mounting ring 45, the mounting ring 45 and the heads of the bolts compress the first generating plate 41, the second generating plate 42 and the generating post 44 therebetween. When the bolts are screwed into the mounting ring 45, the plurality of telescopic rods 47 extend outwards and are abutted against the side, far away from the generating column 44, of the mounting ring 45, and when the bolts are screwed out of the mounting ring 45, the plurality of telescopic rods 47 retract inwards of the mounting ring 45 and at the moment, the telescopic rods 47 can pass through the mounting ring 45.

When the bubble generator 4 needs to be fixed in the conveying pipe 31, the end parts of the bolts are connected to the mounting ring 45 but are not completely screwed into the mounting ring 45, then all the components are conveyed into the conveying pipe 31, then the bolts are screwed into the mounting ring 45, under the action of the bolts, the plurality of telescopic rods 47 extend outwards, the telescopic rods 47 are tightly attached to the side, away from the generating column 44, of the mounting ring 45, and the fixation of the bubble generator 4 is completed; when disassembly is required, telescoping rods 47 are gradually unscrewed from mounting ring 45 until telescoping rods 47 retract and telescoping rods 47 can pass through retaining ring 311, and the components are removed from delivery tube 31.

Specifically, a plurality of fixing rods 46 are fixedly connected to the outer side of the fixing ring 311, the length direction of the fixing rods 46 is set along the radial direction of the generating column 44, a containing hole 461 penetrating through the fixing rods 46 and the side wall of the fixing ring 311 along the length direction of the fixing rods 46 is formed in each fixing rod 46, a telescopic rod 47 is arranged in each containing hole 461, the telescopic rod 47 can slide along the length direction of the containing hole 461 in the containing hole 461, and specifically, the length direction of the telescopic rod 47 is set along the length direction of the fixing rod 46. When one end of the telescopic rod 47 near the axis of the mounting ring 45 is inserted into the mounting ring 45, a plurality of telescopic rods 47 can pass through the fixing ring 311; when the end of the telescopic rod 47 close to the axis of the mounting ring 45 is pushed into the accommodating hole 461 from the inside of the mounting ring 45, the end of the telescopic rod 47 away from the mounting ring 45 can abut against the end of the fixing ring 311 away from the generation post 44.

Specifically, the accommodating hole 461 is provided with a sliding groove 462 on the side close to the generating post 44 and far from the generating post 44, the length direction of the sliding groove 462 is along the length direction of the accommodating hole 461, two sliding blocks 471 respectively inserted into the two sliding grooves 462 are fixedly connected to the fixing rod 46, and the sliding blocks 471 can slide along the length direction of the sliding grooves 462 in the sliding grooves 462; at the end of the slider 471 remote from the mounting ring 45, a spring 48 is provided in a compressed state, the spring 48 being located in the chute 462 and being adapted to push the slider 471 to slide in a direction approaching the mounting ring 45.

Specifically, an inclined plane is arranged on one side of the fixed rod 46 close to the generating column 44, the inclined plane is positioned at one end of the fixed rod 46 close to the axis of the mounting ring 45, and one end of the inclined plane close to the axis of the mounting ring 45 is obliquely arranged towards the direction away from the generating column 44; during the screwing of the bolt into the mounting ring 45, the end of the bolt abuts against the inclined surface, pushing the telescopic rod 47 to slide in a direction away from the axis of the mounting ring 45 under the action of the inclined surface.

Specifically, a sealing ring 312 is fixedly connected to one side of the fixing ring 311, which is close to the generating column 44, and when the bubble generator 4 is fixed in the conveying pipe 31, the generating column 44 is pressed on the sealing ring 312; when the generating column 44 is pressed on the sealing ring 312, the side of the telescopic rod 47 close to the generating column 44 is flush with the side of the fixing ring 311 far away from the generating column 44, so that the telescopic rod 47 can be smoothly attached to the side of the fixing ring 311 far away from the generating column 44 after being extended.

Specifically, referring to fig. 9 and fig. 10, the bubble generator 4 is disposed at a middle position of the bottom of the feeding tank 1 and releases micro-nano bubbles upwards, the blocking mechanism includes a plurality of groups of blocking components 6 arranged along a vertical direction, each blocking component 6 includes a dispersing plate 61 and a collecting ring 62, the collecting ring 62 is located above the dispersing plate 61, the dispersing plate 61 is used for dispersing the micro-nano bubbles released by the bubble generator 4 towards the wall of the feeding tank 1, and the collecting ring 62 is used for collecting the micro-nano bubbles at the position of the feeding tank 1 close to the wall of the tank towards the position close to the center of the feeding tank 1. The micro-nano bubbles released by the bubble generator 4 are moved to the barrel wall of the feeding pool 1 by the dispersing plate 61, then the micro-nano bubbles move upwards to the bottom of the collecting ring 62, the micro-nano bubbles move towards the middle position of the collecting ring 62 under the action of the collecting ring 62, then the micro-nano bubbles pass through the middle of the collecting ring 62 and move upwards, and the dispersing plate 61 above is used for continuing dispersing. Through the continuous dispersion and collection of a plurality of blocking components 6, the moving path of micro-nano bubbles in the feeding pool 1 is prolonged, so that ozone can react with substances in sewage more fully.

Specifically, the dispersion plate 61 is provided as a circular plate with a vertical axis, the collecting ring 62 is a circular ring coaxial with the dispersion plate 61, and the dispersion plate 61 and the collecting ring 62 rotate around their own axes; setting the feeding pool 1 as a barrel, and attaching the outer side of the collecting ring 62 to the inner wall of the feeding pool 1, wherein the diameter of the dispersing plate 61 is smaller than the inner diameter of the feeding pool 1; the bottom of the dispersing plate 61 is fixedly connected with a plurality of arc-shaped dispersing rods 63 which are distributed around the axis of the dispersing plate 61, one side of each arc-shaped protrusion of each dispersing rod 63 is positioned on one side of each dispersing rod 63 facing the rotating direction, the bottom of the collecting ring 62 is fixedly connected with a plurality of arc-shaped collecting rods 64 which are distributed around the axis of the collecting ring 62, and one side of each arc-shaped protrusion of each collecting rod 64 is positioned on one side of each collecting rod 64 facing away from the rotating direction.

By the arrangement of the dispersion rod 63 and the collection rod 64, the dispersion plate 61 and the collection ring 62 can realize dispersion and collection of micro-nano bubbles.

Specifically, the blocking component 6 further includes a rotating shaft 65 coaxial with the dispersing plate 61, the rotating shaft 65 is fixedly connected with the dispersing plate 61, the inner wall of the collecting ring 62 is fixedly connected with a plurality of cross bars 66, and the cross bars 66 are fixedly connected with the rotating shaft 65; all the dispersing plates 61 and the collecting rings 62 are simultaneously driven to rotate by a rotating shaft 65, and specifically, the rotating shaft 65 is rotatably connected to the top of the feeding pool 1 and the rotating shaft 65 is driven to rotate by a motor fixed on the feeding pool 1.

The number of the collecting rods 64 and the number of the dispersing rods 63 in each blocking assembly 6 in the plurality of blocking assemblies 6 are gradually reduced from bottom to top, and the collecting speed of the collecting rods 64 on the micro-nano bubbles and the dispersing speed of the dispersing rods 63 on the micro-nano bubbles are reduced along with the reduction of the number of the collecting rods 64 and the dispersing rods 63; the number of the dispersing rods 63 and the number of the collecting rods 64 are set to gradually decrease from bottom to top, so that the more the nano bubbles float upwards, the slower the nano bubbles are collected and dispersed, and as the nano bubbles rise, the smaller the amount of ozone in the nano bubbles is, the collection and dispersion speed is reduced, the residence time of ozone in water can be increased, and the ozone can be absorbed by sewage more fully.

The radian of the dispersing rod 63 and the radian of the collecting rod 64 in each blocking assembly 6 in the plurality of blocking assemblies 6 are gradually reduced from bottom to top, and the reduction of the radian can reduce the arc bending degree of the dispersing rod 63 and the collecting rod 64, so that micro-nano bubbles are more difficult to disperse and collect by the dispersing rod 63 and the collecting rod 64, the smaller the amount of ozone in the nano bubbles is along with the rising of the nano bubbles, the speed of collection and dispersion is reduced, the stay time of the ozone in water can be prolonged, and the ozone can be absorbed by sewage more fully; and after the curvature of the arc is reduced, the disturbance of the dispersing rod 63 and the collecting rod 64 to the sewage is increased, so that the sewage and the micro-nano bubbles can be in more sufficient contact reaction.

The working principle of the micro-nano bubble ozone adding device when in use is as follows: the sewage in the feeding pool 1 is pumped out and then enters the mixing pump 3, the ozone generated by the ozone generator 2 is also sent into the mixing pump 3, the mixing pump 3 mixes the sewage with the ozone, the mixed sewage and ozone formed after mixing enters the bubble generator 4, the bubble generator 4 can form micro-nano bubbles from the ozone, and then the bubble generator 4 sends the mixture of the sewage and the ozone into the feeding pool 1; in the process of micro-nano bubble rising, the length of a path passing through the micro-nano bubble rising process is prolonged through the dispersing plate 61 and the collecting ring 62, so that the ozone utilization rate is further improved.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.

Claims

1. The utility model provides a little nanometer bubble ozone throw-in device which characterized in that: comprises a feeding tank (1) for containing sewage to be subjected to catalytic oxidation treatment;

an ozone generator (2) for providing ozone;

a mixing pump (3) for mixing the sewage pumped out of the dosing tank (1) with ozone sent out by the ozone generator (2);

the device comprises a bubble generator (4) and a feeding tank (1), wherein the bubble generator (4) is used for enabling ozone in a sewage and ozone mixture to form micro-nano bubbles and sending the sewage and ozone mixture into the feeding tank, the bubble generator (4) comprises a first generation plate (41) and a second generation plate (42) which are provided with pressure release holes (43), the number of the pressure release holes (43) on the first generation plate (41) is smaller than that of the pressure release holes (43) on the second generation plate (42), and the sewage and ozone mixture sequentially passes through the first generation plate (41) and the second generation plate (42);

and the blocking mechanism is arranged in the feeding pool (1) and is used for blocking micro-nano bubbles from floating upwards.

2. The micro-nano bubble ozone adding device according to claim 1, wherein: the bubble generator (4) further comprises a generating column (44), wherein a plurality of spiral holes (441) penetrating through the generating column (44) in a spiral mode are formed in the generating column, and the number of the spiral holes (441) is smaller than that of the pressure release holes (43) in the first generating plate (41).

3. The micro-nano bubble ozone adding device according to claim 2, wherein: the pore size of the spiral hole (441) gradually decreases from one end of the spiral hole (441) away from the first generation plate (41) to one end of the spiral hole (441) close to the first generation plate (41).

4. The micro-nano bubble ozone adding device according to claim 3, wherein: the spiral hole (441) gradually contracts toward the axis of the generation column (44) from one end of the spiral hole (441) away from the first generation plate (41) to one end of the spiral hole (441) close to the first generation plate (41).

5. The micro-nano bubble ozone adding device according to claim 2, wherein: connecting rings (421) are arranged between the first generating plate (41) and the second generating plate (42) and between the generating columns (44) and the second generating plate (42), and the connecting rings (421) are used for forming a transition space between the first generating plate (41) and the second generating plate (42) and between the generating columns (44) and the second generating plate (42).

6. The micro-nano bubble ozone adding device according to claim 2, wherein: the mixing pump (3) sends the mixture of sewage and ozone into the feeding tank (1) through a pipeline, and the bubble generator (4) is positioned in one end of the pipeline extending into the feeding tank (1).

7. The micro-nano bubble ozone adding device according to claim 6, wherein: a fixed ring (311) is fixedly connected in the pipeline, and when the bubble generator (4) is fixed in the pipeline, the generating column (44) is abutted against the fixed ring (311);

the generating column (44) is far away from one end of the first generating plate (41) and is provided with a mounting ring (45), a plurality of telescopic rods (47) which are inserted into the mounting ring (45) are arranged on the outer side of the mounting ring (45), a bolt is arranged on the bubble generator (4), when the bolt is screwed into the mounting ring (45), the telescopic rods (47) extend outwards and are tightly attached to one side, far away from the generating column (44), of the mounting ring (45), and when the bolt is screwed out of the mounting ring (45), the telescopic rods (47) shrink inwards towards the mounting ring (45) and can penetrate through the mounting ring (45) at the moment.

8. The micro-nano bubble ozone adding device according to claim 1, wherein: the bubble generator (4) is arranged at the middle position of the bottom of the feeding pool (1) and releases micro-nano bubbles upwards;

the blocking mechanism comprises a plurality of groups of blocking assemblies (6) which are arranged along the vertical direction;

the blocking component (6) comprises a dispersing plate (61) which is used for dispersing micro-nano bubbles released by the bubble generator (4) towards the barrel wall of the adding pool (1);

and a collecting ring (62) which is positioned above the dispersing plate (61) and is used for collecting micro-nano bubbles at the position of the feeding pool (1) close to the barrel wall towards the position close to the center of the feeding pool (1).

9. The micro-nano bubble ozone adding device according to claim 8, wherein: both the dispersion plate (61) and the collection ring (62) rotate about a vertical axis;

the bottom of the dispersing plate (61) is fixedly connected with a plurality of arc-shaped dispersing rods (63) which are distributed around the vertical axis, one side of each arc-shaped protrusion of each dispersing rod (63) is positioned on one side of the dispersing plate (61) facing the rotating direction, the bottom of the collecting ring (62) is fixedly connected with a plurality of arc-shaped collecting rods (64), and one side of each arc-shaped protrusion of each collecting rod (64) is positioned on one side of each collecting rod (64) facing away from the rotating direction.