CN113248061A - A high-efficient multistage dissolved air flotation machine for sewage treatment - Google Patents
A high-efficient multistage dissolved air flotation machine for sewage treatment Download PDFInfo
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- CN113248061A CN113248061A CN202110539491.7A CN202110539491A CN113248061A CN 113248061 A CN113248061 A CN 113248061A CN 202110539491 A CN202110539491 A CN 202110539491A CN 113248061 A CN113248061 A CN 113248061A
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- air 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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
- C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
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- Mechanical Engineering (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention is suitable for the technical field of sewage treatment equipment, and provides a high-efficiency multistage dissolved air flotation machine for sewage treatment, which comprises an air flotation groove, wherein the side surface of the air flotation groove is respectively provided with a water inlet and a water outlet; a dissolved air water release system is arranged in the air floatation tank and comprises a dissolved air tank, a micro-bubble generator and a slag scraper; the slag scraper is positioned at the upper end of the air floatation groove and comprises a traction mechanism and a slag scraping plate, the slag scraping plate is connected with the traction mechanism through a connecting hole and a fastening device, and drain holes are uniformly distributed on the slag scraping plate; the dissolved air tank is positioned at the outer side of the air flotation tank, a liquid inlet at the upper end of the dissolved air tank is connected with the inside of the air flotation tank through a reflux pump, and the lower end of the dissolved air tank is connected with the micro-bubble generator; therefore, the dissolved air water release system is arranged in the air flotation tank, so that the aim of removing impurities and suspended matters in the sewage more quickly and thoroughly is fulfilled.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a high-efficiency multistage dissolved air flotation machine for sewage treatment.
Background
The air floatation method is a long-standing solid-liquid separation technology and air floatation water purification technology which is widely applied at home and abroad. The principle is that a large amount of micro bubbles are introduced into sewage, and the bubbles interact with particles through the surface tension effect, and the complex processes comprise adsorption, flocculation, hydrodynamics and the like. The sewage is adhered to the suspended particles to form the condition that the integral specific gravity is less than 1, and the sewage floats to the water surface according to the buoyancy principle, so that the solid-liquid separation is realized, and the sewage is purified.
The existing large dissolved air flotation machine has larger overall dimension, the traditional chain type residue scraping machine has the defects of long chain, unstable transmission, easy chain falling and the like, only a primary dissolved air water release system is arranged in the flotation equipment, sewage is treated by a releaser in the flotation tank once and then is directly led into a clean water tank to be discharged, and the problems of insufficient floating of impurities and suspended matters in the water, incomplete sewage treatment, low SS and COD removal rate and the like are solved; the slag scraping plate of the existing air floatation machine is of a solid structure, and when the scraping plate scrapes mud floating on the liquid level of sewage, a part of sewage is carried along with the mud, and the mud is scraped along with the sewage, so that the carried sewage can increase the water content of the mud, increase the subsequent mud dehydration workload and influence the sewage treatment effect; the operation of the existing microbubble generator is troublesome when materials are added, time and labor are wasted, the bubble occurrence rate is influenced, and the liquid mixing effect is poor, so that the sewage treatment effect is reduced.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
Disclosure of Invention
In view of the above-mentioned drawbacks, the present invention provides a high-efficiency multi-stage dissolved air flotation machine for sewage treatment, which realizes a purpose of removing impurities and suspended substances in water more quickly and thoroughly by arranging an dissolved air water release system in an air flotation tank.
In order to achieve the aim, the invention provides a high-efficiency multistage dissolved air flotation machine for sewage treatment, which comprises an air flotation groove, wherein the side surface of the air flotation groove is respectively provided with a water inlet and a water outlet; a dissolved air water release system is arranged in the air floatation tank and comprises a dissolved air tank, a micro-bubble generator and a slag scraper; the slag scraper is positioned at the upper end of the air floatation groove and comprises a traction mechanism and a slag scraping plate, the slag scraping plate is connected with the traction mechanism through a connecting hole and a fastening device, and drainage holes are uniformly distributed in the slag scraping plate; the dissolved air tank is positioned on the outer side of the air flotation tank, a liquid inlet at the upper end of the dissolved air tank is connected with the inside of the air flotation tank through a reflux pump, and the lower end of the dissolved air tank is connected with the micro-bubble generator; microbubble generator includes shell and processing case, the shell upper end is connected with through the filling tube and adds the feed box, the lower extreme of processing case is equipped with the reciprocating pump, the side of processing case is equipped with row bubble pipe, the circulating pump upper end is passed through elastic tube and is connected the processing case, the circulating pump passes through the circulating pipe and connects the inside of adding the feed box.
Preferably, the water inlet is provided with a water inlet partition plate connected with the air flotation groove, and the water outlet is provided with a water outlet partition plate connected with the air flotation groove and a water level adjusting device; the air supporting groove middle part is equipped with overflow plate and division board, microbubble generator be located the overflow plate with between the division board.
Preferably, the rubber pad is transversely installed to the reinforced box inside wall, and the rubber pad top is equipped with the push rod, reinforced box bottom inner chamber fixedly connected with passage, and the passage other end runs through in the top cap inner chamber and is connected with the processing case.
Preferably, the bottom end of the processing box is connected with an elastic pipe, the bottom end of the elastic pipe is sleeved with a circulating pump, one side of the circulating pump is fixedly connected with a circulating pipe, and the end face of the bottom end of the processing box is provided with a vibration pump.
Preferably, the output end of the circulating pipe is connected with the inside of the processing box through a guide ring pipe, and the front end of the bubble discharge pipe is also provided with a bubbling plate.
Preferably, the number of the dissolved air water release systems is two, and the traction mechanism is a telescopic cylinder or a circulating chain.
Preferably, the upper end of the vibration pump is connected with an ultrasonic generator, and the ultrasonic generator is located at the lower end inside the processing box.
Preferably, a flow guide ring pipe is arranged on the inner side wall of the processing box, and the circulating pump is connected with the flow guide ring pipe on the side surface of the processing box through a circulating pipe; .
The invention has the beneficial technical effects that: the invention is suitable for cleaning wastewater in various places by arranging the dissolved air flotation machine, and the removal rate of SS in the primary treated wastewater is more than or equal to 95 percent, the removal rate of the SS is improved by 5 percent compared with the removal rate of a common product, the removal rate of COD is more than or equal to 65 percent, the removal rate of the COD is improved by 5 to 10 percent compared with the prior first-stage dissolved air water release system device, the treatment load is reduced for the subsequent treatment process of the wastewater, the energy source for wastewater treatment is saved, the wastewater is successfully discharged after reaching the standard, and the invention has great significance for factories in the aspects of energy conservation and emission reduction.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic diagram of a microbubble generator according to the present invention;
FIG. 3 is a schematic view of a process kit of the present invention;
in the figure, 1-an air flotation tank, 2-a water inlet, 3-a water outlet, 4-a water inlet clapboard, 5-a first overflow plate, 6-a clapboard, 7-a second overflow plate, 8-a water outlet clapboard, 9-a water inlet area, 10-a first dissolved air release area, 11-a first air flotation slag scraping area, 12-a second dissolved air release area, 13-a second air flotation slag scraping area, 14-a water outlet area, 15-a dissolved air tank, 16-an air compressor, 17-a liquid inlet, 18-a reflux pump and 19-a reflux port;
20-a microbubble generator, 201-a feeding box, 202-a shell, 203-a processing box, 204-a push rod, 205-a rubber pad, 206-a bubble discharge pipe, 207-a material guide pipe, 208-a vibration pump, 209-a circulating pipe, 210-a bubbling plate and 211-an ultrasonic generator;
21-a dissolved air water extraction outlet, 22-a slag scraper and 23-a water level adjusting device.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples, it being understood that the specific examples described herein are only for the purpose of illustrating the present invention and are not to be construed as limiting the present invention.
Referring to fig. 1-3, the invention provides a high-efficiency multi-stage dissolved air flotation machine for sewage treatment, comprising an air flotation tank 1, wherein the side surface of the air flotation tank 1 is respectively provided with a water inlet 22 and a water outlet 33; a dissolved air water release system is arranged in the air floatation tank 1 and comprises a dissolved air tank 15, a micro-bubble generator 20 and a slag scraper 22; the slag scraper 22 is positioned at the upper end of the air floatation groove 1, the slag scraper 22 comprises a traction mechanism and a slag scraping plate, the slag scraping plate is connected with the traction mechanism through a connecting hole and a fastening device, and drain holes are uniformly distributed on the slag scraping plate; the air flotation tank 1 is filled with sewage to be filtered, the micro-bubble generator 20 can make and emit a large amount of highly dispersed micro-bubbles, the micro-bubbles can be used as carriers to adhere to pollutants in the wastewater, so that the buoyancy of the micro-bubbles is larger than the gravity and the floating resistance, the pollutants can float to the water surface to form foams, and then the foams are scraped from the water surface by the slag scraper 22, so that solid-liquid separation is realized. The dissolved air tank 15 is positioned at the outer side of the air flotation tank 1, a liquid inlet 17 at the upper end of the dissolved air tank 15 is connected with the inside of the air flotation tank 1 through a reflux pump 18, and the lower end of the dissolved air tank 15 is connected with a micro-bubble generator 20; the microbubble generator 20 comprises a shell 202 and a processing box 203, the upper end of the shell 202 is connected with a feeding box 201 through a feeding pipe, the lower end of the processing box 203 is provided with a vibration pump 208, the side surface of the processing box 203 is provided with a bubble discharging pipe 206, the upper end of a circulating pump is connected with the processing box 203 through an elastic pipe, and the circulating pump is connected with the inside of the feeding box 201 through a circulating pipe 209. In order to accelerate the reaction, a certain amount of surfactant is required in the loading box 201 of the microbubble generator 20, so that foam can be formed and suspended particles can be attached to the surface of the microbubble generator 20 to rise together.
Preferably, the water inlet 22 of the invention is provided with a water inlet clapboard 4 connected with the air flotation tank 1, and the water outlet 33 is provided with a water outlet clapboard 8 connected with the air flotation tank 1 and a water level adjusting device 23; the middle part of the air flotation tank 1 is provided with an overflow plate and a partition plate 6, and the micro-bubble generator 20 is positioned between the overflow plate and the partition plate 6. The water inlet is large, the flow rate of the inlet water is reduced by the aid of the water inlet partition plate 4, the water outlet partition plate 8 of the water outlet 33 is also used for enabling water flow to be stable, and the water outlet 33 is further provided with a water level adjusting device 23 for monitoring and controlling the whole water level in the air flotation tank 1.
In addition, the inner side wall of the feeding box 201 of the invention is transversely provided with a rubber pad 205, the top of the rubber pad 205 is provided with a push rod 204, the inner cavity of the bottom end of the feeding box 201 is fixedly connected with a material guiding pipe 207, and the other end of the material guiding pipe 207 penetrates through the inner cavity of the top cover to be connected with the processing box 203. In order to achieve a better air flotation effect, a certain amount of auxiliary solvent needs to be added into the feeding box 201, the rubber pad 205 at the bottom end is driven to move inside the feeding box 201 by utilizing the push rod 204 at the top end of the feeding box 201, so that the material inside the feeding box 201 is pushed to enter the processing box 203 through the material guide pipe 207, and the operation is convenient.
Furthermore, the bottom end of the processing box 203 of the invention is connected with an elastic pipe, the bottom end of the elastic pipe is sleeved with a circulating pump, one side of the circulating pump is fixedly connected with a circulating pipe 209, and the end face of the bottom end of the processing box 203 is provided with a vibration pump 208. The circulating pump drives the liquid to flow circularly through the circulating pipe 209, and the vibration pump 208 can provide high-frequency vibration to facilitate the rapid dissolution of the materials in the processing box 203.
Preferably, the output end of the circulation pipe 209 of the present invention is connected to the inside of the processing box 203 through a guiding ring pipe, and the front end of the bubble discharge pipe 206 is further provided with a bubble plate 210. The bubble plate 210 is provided with a large number of exhaust holes to increase the occurrence rate of bubbles.
In order to achieve better technical effect, the number of the dissolved air water release systems is two, and the traction mechanism is a telescopic cylinder or a circulating chain. The traction mechanism drives the slag scraping plate to do reciprocating motion, and due to the fact that the width of part of the air floatation grooves 1 is large, under the condition that the distance of the telescopic cylinder is not enough, chains can be used for fixedly connecting the slag scraping plate with the chains which do rotary motion, and impurities at the upper ends of the first air floatation slag scraping area 11 and the second air floatation slag scraping area 13 are cleaned.
In practical use, the upper end of the vibration pump 208 of the present invention is connected to an ultrasonic generator 211, and the ultrasonic generator 211 is located at the lower end inside the processing box 203. The ultrasonic generator 211 can accelerate the moving efficiency of the bubbles, and the cleaning effect is more obvious.
In addition, a guide pipe loop is installed on the inner sidewall of the processing tank 203 of the present invention, and the circulation pump is connected to the guide pipe loop on the side of the processing tank 203 through a circulation pipe 209.
A high-efficient multistage dissolved air flotation machine for sewage treatment has the two-stage dissolved air flotation and scrapes the sediment district, it scrapes sediment district 13 to be first air flotation and scrapes sediment district 11 and second air flotation respectively, connect a set of dissolved air flotation respectively and scrape the sediment system, the sediment is scraped in the two-stage air flotation of realization sewage, shorten the length of scraping sediment machine 22 chain in the primary equipment, the transmission is more stable, difficult thread off, sewage dissolves the in-process of gas come-up at the second grade, more thorough impurity of getting rid of aquatic, the suspended solid, reduce SS and COD, the treatment load has been reduced for sewage subsequent processing process, reach the mark discharge smoothly after making sewage treatment.
Porous formula scum board structure to the scum board that has drainage mechanism replaces traditional entity scum board, guarantees the process of striking off at the mud of scum board, can make the sewage in the mud flow out from the wash port of porous formula scum board at the in-process along with mud motion, solves the problem that solid scum board mud sediment carries the sewage volume big, makes the sewage and the mud sediment separation that the mud sediment carried, reduces the work load of follow-up mud sediment dehydration, moreover, the steam generator is simple in structure, therefore, the clothes hanger is strong in practicability, and the sewage treatment effect is improved.
But microbubble sends ware automatic material conveying, makes things convenient for the staff to feed in raw material to processing case 203 is inside, and labour saving and time saving improves the bubble incidence, and through setting up liquid circulation flow and cooperation water conservancy diversion ring canal and use, increase liquid and spout the flow, improve mixed effect.
The pressure dissolved air tank 15 is a special air-dissolved air inlet device for the air-float water purification process. Is a closed type pressure container. The full contact mass transfer of water and air is realized in the tank, so that the air is dissolved in the water to reach the saturation degree as much as possible. The pressurized gas tank 15 may take various forms, and a spray-type filler tank for supplying gas by an air compressor 16 is generally preferred. The dissolved air tank 15 in the dissolved air flotation machine has the function that under a certain pressure (generally 0.2-0.6MPa), the dissolved air tank 15 of the air flotation machine ensures that air can be fully dissolved in the wastewater, and the water and the air are well mixed. The mixing time is generally 1-3min, and the mixing time is related to the air intake mode, namely the air intake mixing time before the pump can be shorter, and the air intake mixing time after the pump is longer.
The top of the dissolved air tank 15 in the dissolved air floatation machine is provided with an exhaust valve so as to regularly exhaust the air which is accumulated at the top and is not dissolved, thereby avoiding reducing the tank capacity. The tank bottom is provided with an emptying valve to empty the dissolved air tank 15 during cleaning. In order to prevent short flow in the dissolved air tank 15, increase turbulence degree, promote sufficient contact of water and gas and accelerate gas diffusion, a spacer bush, a baffle plate or a filler is often arranged in the tank.
External sewage is injected into the air flotation tank 1 from the water inlet 2, the treated wastewater is discharged from the water outlet 3, and the water outlet 3 is also provided with a water level adjusting device 23 which can control the water level. The water outlet is also provided with a water outlet partition plate 8, the water outlet partition plate 8 and the side wall of the air floatation tank 1 form a water outlet area 14, the air floatation tank 1 is divided into a first air floatation slag scraping area 11 and a second air floatation slag scraping area 13 by the partition plate 6, the upper end of each air floatation slag scraping area is provided with a slag scraping machine 22, and the slag scraping plates in the slag scraping machines 22 stir impurities to the next processing procedure under the action of a power device. Two microbubble generators 20 are arranged in the air flotation tank 1, the microbubble generators 20 are respectively positioned between the partition plate 6 and the second overflow plate 7 and between the water inlet partition plate 4 and the first overflow plate 5, the microbubble generator 20 on the right side in the figure 1 says that a large amount of bubbles are released in the first dissolved air release area 10, and the microbubble generator 20 on the left side releases a large amount of bubbles in the second dissolved air release area 12.
Each microbubble generator 20 is respectively through connecting dissolved gas jar 15, and the upper end of dissolved gas jar 15 is inlet 17, and inlet 17 passes through backwash pump 18 and connects backward flow mouth 19, and the lower extreme of dissolved gas jar 15 still is equipped with dissolved gas water and adopts export 21 for detect whether container water satisfies the technological requirement. An air compressor 16 is connected to the side of the dissolved air tank 15, so that compressed air can be provided conveniently.
The micro-bubble generator 20 is provided with a feeding box 201, when in use, the feeding box 201 is communicated with the top end of the processing box 203, the push rod 204 at the top end of the feeding box 201 is utilized to drive the rubber plug at the bottom end to move in the feeding box 201, so as to push the material in the feeding box 201 to enter the processing box 203 through the material guide pipe 207, then the ultrasonic wave is generated by the ultrasonic generator 211 arranged at the bottom end of the processing box 203, so as to effectively mix the material with the liquid in the processing box 203, because the elastic pipe is communicated with the bottom end of the processing box 203 and is matched with the circulating pump at the bottom end, the liquid in the processing box 203 can be effectively pumped into the circulating pipe 209 arranged at one side of the circulating pump and is led into the processing box 203 again, and the inner side wall of the processing box 203 is provided with the guide ring pipe communicated with the circulating pipe 209, thereby facilitating the increase of the liquid jet flow rate and further improving the mixing effect, meanwhile, the external power supply of the vibration pump 208 is arranged at the bottom end of the processing box 203, so that the processing box 203 is driven to vibrate integrally, and the vibration frequency of the liquid in the processing box 203 is improved.
The practical use effect of the invention is as follows:
the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A high-efficiency multistage dissolved air flotation machine for sewage treatment is characterized by comprising an air flotation groove, wherein the side surface of the air flotation groove is respectively provided with a water inlet and a water outlet;
a dissolved air water release system is arranged in the air floatation tank and comprises a dissolved air tank, a micro-bubble generator and a slag scraper;
the slag scraper is positioned at the upper end of the air floatation groove and comprises a traction mechanism and a slag scraping plate, the slag scraping plate is connected with the traction mechanism through a connecting hole and a fastening device, and drain holes are uniformly distributed on the slag scraping plate;
the dissolved air tank is positioned on the outer side of the air flotation tank, a liquid inlet at the upper end of the dissolved air tank is connected with the inside of the air flotation tank through a reflux pump, and the lower end of the dissolved air tank is connected with the micro-bubble generator;
microbubble generator includes shell and processing case, the shell upper end is connected with through the filling tube and adds the feed box, the lower extreme of processing case is equipped with the reciprocating pump, the side of processing case is equipped with row bubble pipe, the circulating pump upper end is passed through elastic tube and is connected the processing case, the circulating pump passes through the circulating pipe and connects the inside of adding the feed box.
2. The high-efficiency multi-stage dissolved air flotation machine for sewage treatment according to claim 1, wherein the water inlet is provided with a water inlet partition plate connected with the air flotation tank, and the water outlet is provided with a water outlet partition plate connected with the air flotation tank and a water level adjusting device;
the air supporting groove middle part is equipped with overflow plate and division board, microbubble generator be located the overflow plate with between the division board.
3. The efficient multistage dissolved air flotation machine for sewage treatment according to claim 2, wherein a rubber pad is transversely installed on the inner side wall of the feeding box, a push rod is arranged at the top of the rubber pad, a material guide pipe is fixedly connected to the inner cavity at the bottom end of the feeding box, and the other end of the material guide pipe penetrates through the inner cavity of the top cover and is connected with the processing box.
4. The efficient multistage dissolved air flotation machine for sewage treatment according to claim 1, wherein an elastic pipe is connected to the bottom end of the processing tank, a circulating pump is sleeved at the bottom end of the elastic pipe, a circulating pipe is fixedly connected to one side of the circulating pump, and a vibration pump is installed on the end face of the bottom end of the processing tank.
5. The high-efficiency multi-stage dissolved air flotation machine for sewage treatment according to claim 4, wherein the output end of the circulation pipe is connected with the inside of the processing box through a flow guiding ring pipe, and the front end of the bubble discharge pipe is provided with a bubble plate.
6. The high-efficiency multi-stage dissolved air flotation machine for sewage treatment according to claim 1, wherein the number of the dissolved air water release systems is two, and the traction mechanism is a telescopic cylinder or a circulating chain.
7. The high-efficiency multi-stage dissolved air flotation machine for sewage treatment according to claim 6, wherein an ultrasonic generator is connected to the upper end of the vibration pump, and the ultrasonic generator is located at the lower end inside the processing box.
8. The high-efficiency multi-stage dissolved air flotation machine for sewage treatment according to claim 4, wherein a flow guiding ring pipe is installed on the inner side wall of the processing box, and the circulating pump is connected with the flow guiding ring pipe on the side surface of the processing box through a circulating pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110539491.7A CN113248061A (en) | 2021-05-18 | 2021-05-18 | A high-efficient multistage dissolved air flotation machine for sewage treatment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110539491.7A CN113248061A (en) | 2021-05-18 | 2021-05-18 | A high-efficient multistage dissolved air flotation machine for sewage treatment |
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| CN113248061A true CN113248061A (en) | 2021-08-13 |
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| CN202110539491.7A Pending CN113248061A (en) | 2021-05-18 | 2021-05-18 | A high-efficient multistage dissolved air flotation machine for sewage treatment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115877708A (en) * | 2022-10-12 | 2023-03-31 | 南通水山环保设备有限公司 | Self-adaptive control method of air floatation machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6343756A (en) * | 1986-08-08 | 1988-02-24 | Kubota Ltd | Slag scraping device |
| CN103936093A (en) * | 2014-05-12 | 2014-07-23 | 辽宁华霆环保科技有限公司 | High-efficiency dissolved air flotation system |
| CN205634964U (en) * | 2016-05-30 | 2016-10-12 | 齐延伟 | Dissolved gas floatator |
| CN207294243U (en) * | 2017-08-22 | 2018-05-01 | 山东蓝驰环境科技股份有限公司 | A kind of dissolved gas floatator |
| CN208345797U (en) * | 2018-04-11 | 2019-01-08 | 嘉兴市金宇达染整有限公司 | Dyeing and printing sewage flotation tank |
| CN208513292U (en) * | 2018-06-15 | 2019-02-19 | 深圳市利赛环保科技有限公司 | A kind of device of Novel anaerobic tank automatic scraping slag |
| CN109382035A (en) * | 2018-11-30 | 2019-02-26 | 环亚(天津)环保科技有限公司 | It is a kind of can auto feed device for generating super-fine air bubble |
-
2021
- 2021-05-18 CN CN202110539491.7A patent/CN113248061A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6343756A (en) * | 1986-08-08 | 1988-02-24 | Kubota Ltd | Slag scraping device |
| CN103936093A (en) * | 2014-05-12 | 2014-07-23 | 辽宁华霆环保科技有限公司 | High-efficiency dissolved air flotation system |
| CN205634964U (en) * | 2016-05-30 | 2016-10-12 | 齐延伟 | Dissolved gas floatator |
| CN207294243U (en) * | 2017-08-22 | 2018-05-01 | 山东蓝驰环境科技股份有限公司 | A kind of dissolved gas floatator |
| CN208345797U (en) * | 2018-04-11 | 2019-01-08 | 嘉兴市金宇达染整有限公司 | Dyeing and printing sewage flotation tank |
| CN208513292U (en) * | 2018-06-15 | 2019-02-19 | 深圳市利赛环保科技有限公司 | A kind of device of Novel anaerobic tank automatic scraping slag |
| CN109382035A (en) * | 2018-11-30 | 2019-02-26 | 环亚(天津)环保科技有限公司 | It is a kind of can auto feed device for generating super-fine air bubble |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115877708A (en) * | 2022-10-12 | 2023-03-31 | 南通水山环保设备有限公司 | Self-adaptive control method of air floatation machine |
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Application publication date: 20210813 |
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| RJ01 | Rejection of invention patent application after publication |