CN220334853U - Improved generation air supporting equipment - Google Patents

Improved generation air supporting equipment Download PDF

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Publication number
CN220334853U
CN220334853U CN202321939809.1U CN202321939809U CN220334853U CN 220334853 U CN220334853 U CN 220334853U CN 202321939809 U CN202321939809 U CN 202321939809U CN 220334853 U CN220334853 U CN 220334853U
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China
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slag
water
scum
zone
air
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CN202321939809.1U
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Chinese (zh)
Inventor
夏阁遥
刘福永
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Beijing Anguo Water Treatment Automatic Control Engineering Technology Co ltd
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Beijing Anguo Water Treatment Automatic Control Engineering Technology Co ltd
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Abstract

The utility model provides improved air floatation equipment, relates to the technical field of water treatment, and solves the technical problem that in the prior art, when scum is stirred, a scum accumulation effect disturbs a scum layer formed so that the scum cannot be settled again to form a floating body and is discharged along with water, so that the quality of water outlet is affected. The device comprises an air floatation tank, a floating slag groove and a slag scraping machine, wherein the floating slag groove is arranged in an air floatation reaction zone, the slag scraping machine is arranged above the air floatation reaction zone, a scraping plate of the slag scraping machine stretches into the air floatation reaction zone, the floating slag groove is arranged on one side, close to a dissolved air release zone, of the slag scraping machine, and the slag scraping machine works in the reverse water flow direction and is used for scraping scum into the floating slag groove. The slag groove is arranged at the front end close to the dissolved air release area, the slag scraping machine scrapes slag in the reverse water flow direction, and when the slag is accumulated and disturbed to generate sedimentation, pollutants such as slag, particulate matters and the like falling into air floatation water can be adhered again to the liquid surface to form slag again under the action of a large amount of rising micro bubbles at the front end of the air floatation reaction area.

Description

Improved generation air supporting equipment
Technical Field
The utility model relates to the technical field of water treatment equipment, in particular to improved air floatation equipment.
Background
The air floatation is a technology of solid-liquid separation or liquid-liquid separation, and is characterized by that it utilizes a certain method to produce lots of microbubbles, and makes them adhere to the solid or liquid pollutant particles whose density is close to that of water in the waste water so as to form the air floatation body whose density is less than that of water, under the action of buoyancy force the air floatation body can be lifted to water surface to form scum so as to implement solid-liquid separation or liquid-liquid separation. The scum separator is installed at the end of the air floatation reaction zone of the air floatation tank, the scum separator scrapes the scum into a scum groove towards the water outlet direction, but in the running process of the air floatation system, the scum is stirred backwards in the running process of the scum scraper, the scum can disturb the formed scum layer under the accumulation action, when the scum is too much, the scum on the surface of the air floatation reaction zone can be caused to enter the water of the air floatation reaction zone again, and the scum entering the water can not float again at the moment and can be discharged along with the entering of water into the clear water zone, so that the water quality of the water outlet of the air floatation system is affected.
Disclosure of Invention
The utility model aims to provide improved air floatation equipment, which solves the technical problems that in the prior art, when scum is stirred, a scum accumulation effect disturbs a formed scum layer, so that the scum can not be settled again to form a floating body and can be discharged along with water, and the water quality of the water is affected. The preferred technical solutions of the technical solutions provided by the present utility model can produce a plurality of technical effects described below.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the improved air floatation equipment comprises an air floatation tank, a slag groove and a slag scraping machine, wherein the interior of the air floatation tank is sequentially divided into a water inlet area, a dissolved air release area, an air floatation reaction area and a clear water area by partition boards along the water flow direction, the slag groove is arranged in the air floatation reaction area, the slag scraping machine is arranged above the air floatation reaction area, the scraping board of the slag scraping machine stretches into the air floatation reaction area, the slag groove is arranged at one side, close to the dissolved air release area, of the slag scraping machine, and the slag scraping machine works in the reverse water flow direction and is used for scraping scum into the slag groove.
Preferably, the slag scraping machine comprises a driving device, a driving wheel, a driven wheel, a connecting belt and a scraping plate, wherein the driving device is connected with the driving wheel, the driving wheel is connected with the driven wheel through the connecting belt, the scraping plate is vertically arranged on the outer wall of the connecting belt, and the connecting belt is used for driving the scraping plate to move in the reverse water flow direction.
Preferably, the slag chute is provided with a guide plate towards the lower edge of the slag inlet of the slag scraping machine, and the guide plate is obliquely downwards arranged towards the direction away from the slag chute.
Preferably, the partition board comprises a first partition board, a second partition board and a third partition board, and the air floatation tank is divided into the water inlet area, the dissolved air release area, the air floatation reaction area and the clear water area by the first partition board, the second partition board and the third partition board in sequence.
Preferably, the bottom of the first partition plate is provided with a water passing hole, and the mixed liquid in the water inlet area enters the dissolved gas release area through the water passing hole.
Preferably, the second partition plate is obliquely arranged, and the upper end of the second partition plate is oblique to the air floatation reaction zone.
Preferably, a water collecting pipe is arranged at the bottom of the third partition board, and water in the air-floatation reaction zone enters the clear water zone through the water collecting pipe.
Preferably, a dissolved gas releaser is arranged in the dissolved gas releasing area.
Preferably, the two ends of the air floatation tank are respectively provided with a water inlet pipe and a water outlet pipe, the water inlet pipe is communicated with the water inlet area, and the water outlet pipe is communicated with the clear water area.
The application adopts the technical scheme, possesses following beneficial effect at least:
in this application, with the floating slag groove setting in the one side that the slag scraping machine is close to the dissolved gas release district, even though the accumulation effect of dross appears in the slag scraping machine string sediment in-process this moment and has disturbed the floating slag layer that has formed for when partial dross or solid, liquid pollutant reentrant air supporting reaction water, owing to the front end of air supporting reaction zone has a large amount of tiny bubbles that rise, can adhere again and fall into pollutant such as dross, particulate matter in the air supporting water and rise to the liquid level and form the dross once more, compare in prior art and be close to the circumstances that clear water district subsides at air supporting reaction zone rear end can reduce subsides, thereby promote out water quality.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an improved air floatation device according to an embodiment of the present utility model.
In the figure 1, an air floatation tank; 2. a slag groove; 3. a slag scraping machine; 4. a water inlet area; 5. a dissolved gas release zone; 6. an air floatation reaction zone; 7. a clear water zone; 8. a scraper; 9. a driving wheel; 10. driven wheel; 11. a connecting belt; 12. a deflector; 13. a first separator; 14. a second separator; 15. a third separator; 16. a water passing hole; 17. a water collecting pipe; 18. a dissolved air releaser; 19. a water inlet pipe; 20. and a water outlet pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.
The embodiment of the utility model provides improved air floatation equipment, which comprises an air floatation tank 1, a slag groove 2 and a slag scraping machine 3, wherein the inside of the air floatation tank 1 is sequentially divided into a water inlet area 4, a dissolved air release area 5, an air floatation reaction area 6 and a clear water area 7 by partition boards along the water flow direction, dirty (waste) water sequentially passes through the water inlet area 4, the dissolved air release area 5, the air floatation reaction area 6 and the clear water area 7, the slag groove 2 is arranged in the air floatation reaction area 6 and is used for containing slag, the slag scraping machine 3 is arranged above the air floatation reaction area 6, a scraping plate 8 of the slag scraping machine 3 stretches into the air floatation reaction area 6, the slag scraping machine 3 drives the scraping plate 8 to act to scrape the slag through the scraping plate 8, the slag groove 2 is arranged at one side of the slag scraping machine 3 close to the dissolved air release area 5, namely, the front end position of the air floatation reaction area 6 is the sewage with tiny bubbles left in the dissolved air release area 5, when the micro bubbles adhere to the scum, the particles and the like in the rising process, the scum scraper 3 works in the reverse water flow direction and is used for scraping the scum into the scum groove 2, when the scum is not scraped timely, or the running speed of the scum scraper 3 is improper, or the water level of the air floatation tank changes, the scum scraper 3 can not effectively scrape the scum layer, or the condition of water inlet fluctuation and the like, the accumulation effect of the scum in the running process of the scum scraper 3 disturbs the formed scum layer, so that part of scum, solid and liquid pollutants enter the water of the air floatation reaction zone 6 again, and as a great amount of rising micro bubbles exist at the front end of the air floatation reaction zone 6, the pollutants such as the scum and the particles falling into the air floatation water can be adhered again to the liquid level to form the scum again, thus the scum can be formed again in the scum scraping process, and the water flow of the sediment is prevented from being discharged, thereby improving the quality of the discharged water.
In this application, scrape sediment machine 3 includes drive arrangement, action wheel 9, from driving wheel 10, connecting band 11 and scraper blade 8, drive arrangement and action wheel 9 are connected, drive arrangement can adopt the motor, drive the rotation of action wheel 9 through the motor, action wheel 9 passes through connecting band 11 with driving wheel 10 and is connected, scraper blade 8 vertically sets up on the connecting band 11 outer wall, connecting band 11 is used for driving scraper blade 8 reverse water flow direction and removes, scraper blade 8 scrapes the dross at the in-process of going for in the dross enters into the dross groove, the direction of width direction perpendicular to rivers of scraper blade 8.
The guide plate 12 is arranged at the lower edge of the slag inlet of the slag scraper 3, which faces the slag groove 2, the guide plate 12 is obliquely downwards arranged towards the direction away from the slag groove 2, the guide plate 12 is used for guiding the scum to enter the slag groove 2, and the guide plate 12 can enable the scum accumulated together to be pushed into the slag groove 2.
The baffle in this application includes first baffle 13, second baffle 14 and third baffle 15, combines the figure 1, from left to right in proper order by first baffle 13, second baffle 14 and third baffle 15 with air supporting pond 1 separate into water inlet zone 4, dissolved gas release zone 5, air supporting reaction zone 6 and clear water zone 7.
And water passing holes 16 are formed in the bottom of the first partition plate 13, sewage (waste) enters the water inlet area 4 of the air floatation tank 1 from a water inlet pipe 19 communicated with the water inlet area 4, and coagulation and flocculation reactions are completed in the area sequentially through an external coagulant and a flocculant (according to the water quality condition, the addition amount and the reaction time can be determined through experiments). And then enters the dissolved gas releasing zone 5 from the water passing hole 16 at the lower part at a flow rate of less than 0.1 m/s.
The second partition board 14 is obliquely arranged, the upper end of the second partition board 14 is obliquely provided with an air floatation reaction zone 6, a dissolved air releaser 18 is arranged in the dissolved air release zone (the number of the dissolved air releasers 18 is determined by factors such as the dissolved air water release efficiency and the dissolved air water reflux quantity), and under a certain pressure in a dissolved air tank (the dissolved air pressure is usually 0.2-0.4 Mpa), a large number of tiny bubbles of 50-100 mu m are generated by instant decompression of the dissolved air water after the air water is mixed through the dissolved air releaser 18, and the air dissolved in the water is released into sewage again. These fine bubbles undergo a sufficient contact reaction with flocs, particulates, and the like in the water flow having a constant flow rate in the rising process. In practical design, the rising flow rate is generally about 20mm/s, so that the sufficient reaction time with a large number of tiny bubbles is ensured, and the solid-liquid separation efficiency of the air floatation reaction zone 6 is considered to be influenced by the fact that the volume of the dissolved air release zone 5 cannot be too large. Thereafter, the water stream passes from the dissolved air delivery zone 5 over the upper portion of the inclined second partition 14 into the air flotation reaction zone 6. The falling speed of the water flow entering the air-float reaction zone 6 is within the range of 1.5-3 mm/s, namely, the hydraulic load of the air-float reaction zone 6 is ensured to be 5.5-10.8m 3 /m 2 H (including the return amount of dissolved air water). At the same time, the micro-bubbles carry flocculation products and some micro-particles to float up to the surface of the sewage to form scum. The cycle for removing the scum can be determined according to the actual scum generation condition and the on-site operation condition (after the system is stably operated, the scum is removed once for 2-4 hours).
A slag groove 2 is arranged at the position of the air floatation reaction zone 6 close to the front end (the position is positioned at the front end of the running length range of the slag scraping machine 3), and the slag scraping machine 3 is fixedly arranged on the top of the tail end pool. When the slag scraper 3 runs (running speed is within 5 m/min), the scraping plate 8 on the slag scraper 3 runs in the reverse water flow direction, and scum generated on the liquid surface of the air floatation reaction zone 6 is continuously scraped into the scum groove 2 near the front end from the tail end to the front end. The water after the air-float reaction enters the clear water area 7 through the water collecting pipe 17 at the bottom, and finally enters the next process flow through the water outlet pipe 20 communicated with the clear water area 7.
In the present disclosure, the terms "one embodiment," "some embodiments," "examples," "specific examples," "some examples," and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (9)

1. The utility model provides an improved generation air supporting equipment, its characterized in that includes air supporting pond, slag groove and scrapes the sediment machine, the inside water inlet zone, dissolve gas release district, air supporting reaction zone and clear water district of following the rivers direction by the baffle in proper order of air supporting pond, the slag groove sets up in the air supporting reaction zone, scrape the sediment machine setting and be in air supporting reaction zone top, just the scraper blade of scraping the sediment machine stretches into in the air supporting reaction zone, the slag groove sets up scrape the sediment machine and be close to dissolve one side in gas release district, scrape sediment machine reverse water flow direction work, be used for with the dross is scraped into the slag groove.
2. The improved air flotation device of claim 1, wherein the slag scraping machine comprises a driving device, a driving wheel, a driven wheel, a connecting belt and the scraping plate, wherein the driving device is connected with the driving wheel, the driving wheel is connected with the driven wheel through the connecting belt, the scraping plate is vertically arranged on the outer wall of the connecting belt, and the connecting belt is used for driving the scraping plate to move in the reverse water flow direction.
3. The improved air floatation device of claim 1, wherein the scum tank is provided with a deflector towards the lower edge of the scum inlet of the scum scraper, and the deflector is arranged in a direction away from the scum tank in a downward inclined direction.
4. The improved flotation device of claim 1 wherein the separator comprises a first separator, a second separator and a third separator, the first separator, the second separator and the third separator separating the flotation tank into the water inlet zone, the dissolved air release zone, the flotation reaction zone and the clear water zone.
5. The improved flotation device of claim 4 wherein a water hole is provided in the bottom of the first separator and the mixed liquid in the water inlet zone enters the dissolved air delivery zone through the water hole.
6. The improved flotation device of claim 4 wherein the second baffle is inclined and the upper end of the second baffle is inclined to the flotation reaction zone.
7. The improved flotation device of claim 4 wherein a water collection pipe is disposed at the bottom of the third separator, wherein water from the air flotation reaction zone enters the clear water zone through the water collection pipe.
8. The improved flotation device of claim 1 wherein a dissolved air releaser is disposed within the dissolved air release zone.
9. The improved floatation device of claim 1, wherein two ends of said floatation tank are respectively provided with a water inlet pipe and a water outlet pipe, said water inlet pipe being in communication with said water inlet zone, said water outlet pipe being in communication with said clear water zone.
CN202321939809.1U 2023-07-21 2023-07-21 Improved generation air supporting equipment Active CN220334853U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321939809.1U CN220334853U (en) 2023-07-21 2023-07-21 Improved generation air supporting equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321939809.1U CN220334853U (en) 2023-07-21 2023-07-21 Improved generation air supporting equipment

Publications (1)

Publication Number Publication Date
CN220334853U true CN220334853U (en) 2024-01-12

Family

ID=89449210

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321939809.1U Active CN220334853U (en) 2023-07-21 2023-07-21 Improved generation air supporting equipment

Country Status (1)

Country Link
CN (1) CN220334853U (en)

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