CN106904680B - Air floatation machine - Google Patents
Air floatation machine Download PDFInfo
- Publication number
- CN106904680B CN106904680B CN201710284150.3A CN201710284150A CN106904680B CN 106904680 B CN106904680 B CN 106904680B CN 201710284150 A CN201710284150 A CN 201710284150A CN 106904680 B CN106904680 B CN 106904680B
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- China
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- air
- tank
- water outlet
- reaction tank
- bubble generator
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
Abstract
An air floatation machine comprises an air floatation tank, a slag scraping device, a releaser, a bubble generator, a motor, a water outlet pipe and an air dissolving system. The bubble generator is the tubular structure that extends along air supporting reaction tank length direction, bubble generator installs the inside at the releaser, bubble generator's one end links to each other with the motor of installing in the air supporting reaction tank outside, the motor drives bubble generator and is axial rotation inside the releaser, thereby make dissolved air water, sewage, the abundant rotatory contact of flocculating agent, form the floc and mix the liquid, greatly reduced coagulate-flocculation in-process dwell time, the treatment effeciency is improved, and no longer be equipped with flocculation reaction tank alone, the area of air supporting machine has been reduced, make the air supporting machine compacter. And the releaser releases the mixed solution to the whole air floatation reaction tank for contact and separation reaction, and has stronger treatment capacity on the fluctuation of water flow.
Description
Technical Field
The invention relates to the field of sewage treatment equipment, in particular to an air flotation machine.
Background
The dissolved air floatation technology is a solid-liquid separation technology, has the characteristics of high treatment efficiency, short start-up time and small occupied area, and is widely applied to the field of water treatment. The complete dissolved air floatation technology comprises three basic processes of flocculation, dissolved air release and bubble-floc aggregate formation and separation. Therefore, the tank body of the general air flotation machine comprises a flocculation reaction tank, a contact tank and a separation tank. The sewage is firstly put into a flocculation reaction tank to be fully mixed with a flocculating agent to generate flocculation reaction, then the sewage enters a contact tank to be bonded with small bubbles in the dissolved air water, and formed bubble flocs enter a separation tank along an inclined plane arranged between the contact tank and the reaction tank and float to the liquid level to form scum for removal. The effective working interval of the separation tank is only an interval from the inclined plane to the liquid surface, and is used for separating flocculated flocs, micro bubble groups are contained in the water, so that the flocs can be lifted in an auxiliary manner, and the lower half part of the separation tank can only be used for collecting clear water. And when the sewage flow is suddenly increased, the sewage flows into a region below the inclined plane of the separation tank, and the micro bubble groups do not assist in lifting flocs in the region, so that the sewage treatment effect is unstable.
Disclosure of Invention
In order to solve the problems, the invention provides an air floating machine.
The invention relates to an air flotation machine which comprises an air flotation tank, a slag scraping device, a releaser, a bubble generator, a motor, a water outlet pipe and an air dissolving system; the air floatation tank comprises an air floatation reaction tank and a scum tank, and the air floatation reaction tank and the scum tank are separated by a partition plate; one end of the air flotation reaction tank is provided with an air flotation water inlet, and the other end of the air flotation reaction tank is provided with an air flotation water outlet; the slag scraping device is positioned above the air floatation tank;
the water outlet pipe is arranged at a position close to the bottom of the air floatation reaction tank; the water outlet pipe is of a tubular structure extending along the length direction of the air floatation reaction tank, a plurality of small holes are uniformly formed in the bottom of the water outlet pipe, one end of the water outlet pipe is closed, and the other end of the water outlet pipe is communicated with the air dissolving system and the air floatation water outlet through a tee joint; the bubble generator is of a tubular structure extending along the length direction of the air floatation reaction tank, is arranged in the releaser and is positioned above the water outlet pipe; one end of the bubble generator is communicated with the dissolved air system and the air flotation water inlet through a three-way joint, the other end of the bubble generator is connected with a motor arranged on the outer side of the air flotation reaction tank, and the motor drives the bubble generator to axially rotate inside the releaser.
Further, the releaser includes a main pipe and a plurality of bubble release pipes, the main pipe is for extending tubular structure along air supporting reaction tank length direction, and a plurality of bubble release pipes with be responsible for the intercommunication and the symmetrical distribution in the both sides of being responsible for.
Further, the scum device includes chain, two sprocket and a plurality of scum boards, and one of them of two sprockets is located air supporting reaction tank top and is close to one side of air supporting water inlet, and another sprocket is located the scum pond top, connects two sprockets through the chain, fixes on the chain to set up a plurality of scum boards.
Further, the dissolved air system comprises a reflux pump, a dissolved air tank and an air compressor; the water inlet of the reflux pump is communicated with the air flotation water outlet and the water outlet pipe through a three-way joint, the water outlet of the reflux pump is communicated with the water inlet of the dissolved air tank, the water outlet of the dissolved air tank is communicated with the bubble generator and the air flotation water inlet through a three-way joint, and the air inlet of the dissolved air tank is communicated with the air compressor.
Furthermore, the air floatation machine also comprises a chemical feeding port which is communicated with the bubble generator and the air floatation water inlet through a three-way joint.
Furthermore, a plurality of inclined plates which are uniformly distributed along the length direction of the air flotation reaction tank are arranged below the water outlet pipe in the air flotation reaction tank and are positioned at the same horizontal height, the inclined plates divide the air flotation reaction tank into a reaction area above the inclined plates and a settling area below the inclined plates, and the settling area is provided with a sludge discharge port.
Furthermore, the settling zone is a structure formed by N inverted trapezoids, and each inverted trapezoidal area is provided with a sludge discharge port.
The invention has the following advantages:
1. the bubble generator is driven by the motor to axially rotate in the releaser, so that the dissolved air water, the sewage and the flocculating agent are fully and rotationally contacted to form a floc mixed solution, the retention time in the coagulation-flocculation process is greatly reduced, the treatment efficiency is improved, and a flocculation reaction tank is not arranged independently, so that the occupied area of the air flotation machine is reduced, and the air flotation machine is more compact.
2. The contact tank and the separation tank are combined into the air floatation reaction tank, the whole air floatation reaction tank is subjected to contact and separation reactions, and the influence of the sudden change of the water flow is diffused to the whole tank body, so that the influence of the change of the water flow on the sewage treatment effect is small.
Drawings
Fig. 1 is a schematic structural view of an air floating machine provided in embodiment 1 of the present invention;
FIG. 2 is a schematic top view of the structure of an air flotation reaction tank provided in example 1 of the present invention;
illustration of the drawings:
1. an air flotation reaction tank; 2. a slag scraping device; 3. a scum pool; 4. a releaser; 41. a main pipe; 42. a bubble release tube; 5. a bubble generator; 6. a motor; 7. a water outlet pipe; 8. A reflux pump; 9. a dissolved air tank; 10. an air compressor; 11. a partition plate; 12. a sloping plate.
Detailed Description
In order to make the technical solution of the present invention better understood and realized by those skilled in the art, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
Example 1
As shown in fig. 1, the air flotation machine of the present invention comprises an air flotation tank, a slag scraping device 2, a releaser 4, a bubble generator 5, a motor 6, a water outlet pipe 7 and a dissolved air system; the air floatation tank comprises an air floatation reaction tank 1 and a scum tank 3, and the air floatation reaction tank 1 and the scum tank 3 are separated by a partition plate 11; one end of the air flotation reaction tank 1 is provided with an air flotation water inlet, and the other end is provided with an air flotation water outlet; the slag scraping device 2 comprises a chain, two chain wheels and a plurality of slag scraping plates, one of the two chain wheels is positioned above the air floatation reaction tank 1 and close to one side of an air floatation water inlet, the other chain wheel is positioned above the slag floatation tank and connected with the two chain wheels through the chain, and the chain is fixedly provided with the plurality of slag scraping plates. The gas dissolving system comprises a reflux pump 8, a gas dissolving tank 9 and an air compressor 10; the water inlet of the reflux pump 8 is communicated with the air flotation water outlet and the water outlet pipe 7 through a three-way joint, the water outlet of the reflux pump 8 is communicated with the water inlet of the dissolved air tank 9, the water outlet of the dissolved air tank 9 is communicated with the bubble generator 5 and the air flotation water inlet through a three-way joint, and the air inlet of the dissolved air tank 9 is communicated with the air compressor 10.
The water outlet pipe 7 is arranged at the position of the air floatation reaction tank 1 close to the tank bottom; the water outlet pipe 7 is of a tubular structure extending along the length direction of the air flotation reaction tank 1, a plurality of small holes are uniformly formed in the bottom of the water outlet pipe 7, one end of the water outlet pipe is closed, and the other end of the water outlet pipe is communicated with a water inlet and an air flotation water outlet of the reflux pump 8 through a three-way joint; the bubble generator 5 is a tubular structure extending along the length direction of the air floatation reaction tank 1, is arranged inside the releaser 4 and is positioned above the water outlet pipe 7; one end of the bubble generator 5 is communicated with a water outlet and an air flotation water inlet of the dissolved air tank 9 through a three-way joint, the other end of the bubble generator is connected with a motor 6 arranged outside the air flotation reaction tank 1, and the motor 6 drives the bubble generator 5 to axially rotate inside the releaser 4, so that the liquid is ensured to be in full rotary contact in the bubble generator.
As shown in fig. 2, the releaser 4 comprises a main pipe 41 and a plurality of bubble releasing pipes 42, wherein the main pipe 41 is a tubular structure extending along the length direction of the air flotation reaction tank 1, and the plurality of bubble releasing pipes 42 are communicated with the main pipe 41 and symmetrically distributed on two sides of the main pipe 41.
More specifically, the air floatation machine further comprises a chemical feeding port which is communicated with the bubble generator 5 and the air floatation water inlet through a three-way joint.
More specifically, still be equipped with a plurality of swash plates 12 along 1 length direction evenly distributed of air supporting reaction tank in the below that lies in outlet pipe 7 in the air supporting reaction tank 1 to a plurality of swash plates 12 are located same level, swash plate 12 divides 1 reaction zone and the settling zone of swash plate 12 below that is located the swash plate 12 top with the air supporting reaction tank, the settling zone is the structure that 2 trapezoidal constitutions fall, and every trapezoidal region that falls all is equipped with row mud mouth.
In this embodiment, the specific implementation process of sewage treatment is as follows:
sewage flows in from the air floatation water inlet, flows into the bubble generator 5 together with the flocculating agent flowing in from the chemical feeding port and the dissolved air water flowing in from the dissolved air tank 9, and the motor 6 drives the bubble generator 5 to axially rotate, so that the dissolved air water, the sewage and the flocculating agent are fully and rotatably contacted to form a floc mixed solution, thereby greatly reducing the retention time in the coagulation-flocculation process and improving the treatment efficiency. Further, the floc mixed liquid flows into the main pipe 41 of the releaser 4 from the bubble generator 5, the micro bubbles and the particles in the sewage are flocculated together in the main pipe 41 to form bubble flocs, and the bubble flocs uniformly flow into the air floatation reaction tank 1 through the plurality of bubble release pipes 42 communicating with the main pipe 41, and float up to the liquid level of the air floatation reaction tank 1 to form scum. The chain wheel of the scum scraping device 2 rotates to drive the scum scraping plate on the chain to horizontally move on the surface of the floatation tank, and scum is scraped into the scum tank 3. Because weight is great, part heavier granule sinks to the reaction zone of swash plate 12 below and forms mud, and swash plate 12 plays the effect of keeping apart reaction zone and the sedimentation zone in the air supporting reaction tank 1, makes the rivers in reaction zone influence little to the rivers of sedimentation tank, guarantees that the rivers velocity of flow of sedimentation tank is little, is favorable to the sediment of mud, and mud is discharged through the mud discharging port. The treated sewage flows into a water outlet pipe 7 through a small hole arranged at the bottom of the water outlet pipe 7, the treated sewage in the water outlet pipe 7 flows into a dissolved air tank 9 through a reflux pump 8, meanwhile, an air compressor 10 pressurizes and inputs air into the dissolved air tank 9, the air is dissolved into liquid in the dissolved air tank 9 to form dissolved air water, and the dissolved air water, the sewage flowing in from an air floatation water inlet and a flocculating agent flowing in from a chemical feeding port enter a bubble generator 5 together for circulating work; and the other part of the treated sewage in the water outlet pipe 7 flows out through the air floatation water outlet to finish the treatment.
The air flotation machine provided by the invention is described in detail above. The technical solutions and embodiments of the present invention are described herein by using specific examples, and the above descriptions of the examples are only used to help understanding the technical solutions and the core ideas of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the technical scope of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (6)
1. An air floatation machine is characterized by comprising an air floatation tank, a slag scraping device, a releaser, a bubble generator, a motor, a water outlet pipe and an air dissolving system; the air floatation tank comprises an air floatation reaction tank and a scum tank, and the air floatation reaction tank and the scum tank are separated by a partition plate; one end of the air flotation reaction tank is provided with an air flotation water inlet, and the other end of the air flotation reaction tank is provided with an air flotation water outlet; the slag scraping device is positioned above the air floatation tank;
the water outlet pipe is arranged at a position close to the bottom of the air floatation reaction tank; the water outlet pipe is of a tubular structure extending along the length direction of the air floatation reaction tank, a plurality of small holes are uniformly formed in the bottom of the water outlet pipe, one end of the water outlet pipe is closed, and the other end of the water outlet pipe is communicated with the air dissolving system and the air floatation water outlet through a tee joint;
the bubble generator is of a tubular structure extending along the length direction of the air floatation reaction tank, is arranged in the releaser and is positioned above the water outlet pipe; one end of the bubble generator is communicated with the dissolved air system and the air floatation water inlet through a three-way joint, the other end of the bubble generator is connected with a motor arranged outside the air floatation reaction tank, and the motor drives the bubble generator to axially rotate in the releaser; the air floatation machine also comprises a chemical adding port which is communicated with the bubble generator and the air floatation water inlet through a three-way joint.
2. The air flotation machine as claimed in claim 1, wherein the releaser comprises a main pipe and a plurality of bubble release pipes, the main pipe is a tubular structure extending along the length direction of the air flotation reaction tank, and the plurality of bubble release pipes are communicated with the main pipe and symmetrically distributed on two sides of the main pipe.
3. The air flotation machine as claimed in claim 1, wherein the scraping device comprises a chain, two sprockets and a plurality of scraping plates, one of the two sprockets is located above the air flotation reaction tank and close to one side of the air flotation water inlet, the other sprocket is located above the scum tank, the two sprockets are connected through the chain, and the plurality of scraping plates are fixedly arranged on the chain.
4. The air flotation machine as claimed in claim 1, wherein the dissolved air system comprises a reflux pump, a dissolved air tank, and an air compressor; the water inlet of the reflux pump is communicated with the air flotation water outlet and the water outlet pipe through a three-way joint, the water outlet of the reflux pump is communicated with the water inlet of the dissolved air tank, the water outlet of the dissolved air tank is communicated with the bubble generator and the air flotation water inlet through a three-way joint, and the air inlet of the dissolved air tank is communicated with the air compressor.
5. The air flotation machine according to claim 1, wherein a plurality of inclined plates are uniformly distributed along the length direction of the air flotation reaction tank below the water outlet pipe, the inclined plates are located at the same level, the inclined plates divide the air flotation reaction tank into a reaction area above the inclined plates and a settling area below the inclined plates, and the settling area is provided with a sludge discharge port.
6. The air flotation machine as claimed in claim 5, wherein the settling zone is a structure of N inverted trapezoids, and each inverted trapezium region is provided with a sludge discharge port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710284150.3A CN106904680B (en) | 2017-04-26 | 2017-04-26 | Air floatation machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710284150.3A CN106904680B (en) | 2017-04-26 | 2017-04-26 | Air floatation machine |
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| Publication Number | Publication Date |
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| CN106904680A CN106904680A (en) | 2017-06-30 |
| CN106904680B true CN106904680B (en) | 2020-06-16 |
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| CN201710284150.3A Active CN106904680B (en) | 2017-04-26 | 2017-04-26 | Air floatation machine |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107244703A (en) * | 2017-07-11 | 2017-10-13 | 湖南美奕机电科技有限公司 | A kind of sealed air floatation machine |
| CN107162089A (en) * | 2017-07-12 | 2017-09-15 | 湖南美奕机电科技有限公司 | A kind of oil-water separating device for kitchen waste |
| CN107352613A (en) * | 2017-07-12 | 2017-11-17 | 湖南美奕机电科技有限公司 | A kind of sealed dissolved gas floatator |
| CN107128995A (en) * | 2017-07-13 | 2017-09-05 | 湖南美奕机电科技有限公司 | It is a kind of can continuous sediment outflow air floatation machine |
| CN107188377A (en) * | 2017-07-13 | 2017-09-22 | 湖南美奕机电科技有限公司 | A kind of integrated sewage treating apparatus |
| CN107459089A (en) * | 2017-08-03 | 2017-12-12 | 湖南美奕机电科技有限公司 | A kind of air floatation machine of deslagging sediment outflow one |
| CN107473309A (en) * | 2017-09-04 | 2017-12-15 | 合肥天翔环境工程有限公司 | A kind of horizontal sewage treatment air flotation machine |
| CN107473308A (en) * | 2017-09-04 | 2017-12-15 | 合肥天翔环境工程有限公司 | A kind of sewage treatment air flotation machine |
| CN107459090A (en) * | 2017-09-11 | 2017-12-12 | 湖南美奕机电科技有限公司 | A kind of high efficiency air float machine |
| CN107381702A (en) * | 2017-09-12 | 2017-11-24 | 湖南美奕机电科技有限公司 | A kind of high-efficiency dissolued-air air floatation machine |
| CN107399858A (en) * | 2017-09-13 | 2017-11-28 | 湖南美奕机电科技有限公司 | A kind of multistage backflow air floatation machine |
| CN108947014A (en) * | 2018-08-07 | 2018-12-07 | 广东科创工程技术有限公司 | Nanometer air bearing inclined tube or sloping plate deposition integral pool after a kind of coagulation |
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| KR101270236B1 (en) * | 2012-01-25 | 2013-05-31 | 차상화 | Apparatus for separating waste oil using bubble |
| CN203095663U (en) * | 2013-01-28 | 2013-07-31 | 江苏启创环境科技有限公司 | Integrated air floating device |
| CN106277149A (en) * | 2015-05-21 | 2017-01-04 | 天津市安宝利亨环保工程技术有限公司 | A kind of new and effective flat flow dissolved gas floatator |
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2017
- 2017-04-26 CN CN201710284150.3A patent/CN106904680B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62180790A (en) * | 1986-02-05 | 1987-08-08 | Hitachi Ltd | Method and apparatus for producing extremely pure water |
| CN202152290U (en) * | 2011-07-08 | 2012-02-29 | 蓝星环境工程有限公司 | Pressurized dissolved-air floating system |
| KR101270236B1 (en) * | 2012-01-25 | 2013-05-31 | 차상화 | Apparatus for separating waste oil using bubble |
| CN203095663U (en) * | 2013-01-28 | 2013-07-31 | 江苏启创环境科技有限公司 | Integrated air floating device |
| CN106277149A (en) * | 2015-05-21 | 2017-01-04 | 天津市安宝利亨环保工程技术有限公司 | A kind of new and effective flat flow dissolved gas floatator |
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| CN106904680A (en) | 2017-06-30 |
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Effective date of registration: 20200527 Address after: 325000 No. 268 College West Road, Lucheng District, Zhejiang, Wenzhou Applicant after: Ji Xuhui Address before: Yuelu District City, Hunan province 410205 Changsha poly Lugu Lin language F25 building 803 Applicant before: HUNAN MEIYI ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20201015 Address after: 241000 room 2302, unit 2, building 12, Weixing Yangtze River song, Yijiang District, Wuhu City, Anhui Province Patentee after: Nanling Industrial Investment Co., Ltd Address before: 325000 No. 268 College West Road, Lucheng District, Zhejiang, Wenzhou Patentee before: Ji Xuhui |