CN220684820U - Efficient dissolved air floatation machine for sewage treatment - Google Patents

Abstract

The utility model discloses a high-efficiency dissolved air flotation machine for sewage treatment, which comprises a box body, wherein stirring blades are fixedly connected to the outer walls of two first rotating shafts, driven gears are fixedly connected to the lower ends of the outer walls of the two first rotating shafts, a driving gear positioned between the two driven gears is rotatably connected to the lower ends of the inner parts of an air flotation contact area, two transmission gears meshed with the driving gear and the two driven gears are rotatably connected to the lower ends of the inner parts of the air flotation contact area, the driving gear is driven by a first motor to rotate, the two transmission gears are driven by the driving gear to rotate, the two driven gears drive the two driven gears to rotate, meanwhile, PAC (PAC) reagent, PAM (PAM) reagent and sewage are fully stirred by the stirring blades, so that the PAC reagent, the PAM reagent and raw water react and flocculate into suspended matters rapidly, and the stirring blades can stir larger suspended matters and prevent the suspended matters from accumulating inside the box body.

Description

Efficient dissolved air floatation machine for sewage treatment

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a high-efficiency dissolved air flotation machine for sewage treatment.

Background

The sewage treatment refers to a process of purifying sewage to meet the water quality requirement of being discharged into a certain water body or reused, and is widely applied to various fields of buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscapes, medical treatment, catering and the like, and the sewage treatment also increasingly enters the daily life of common people.

The existing dissolved air flotation machine for sewage treatment at present is basically composed of PAC pipelines, PAM pipelines, dissolved air tanks, dissolved air pipelines, a box body, a foam scraping assembly and other components, when the existing dissolved air flotation machine for sewage treatment at present is used, PAC and PAM reagents are added into the box body through the PAC pipelines and the PAM pipelines, after raw water is subjected to reaction flocculation, dissolved air water is added into the box body through the dissolved air pipelines, so that bubbles in the dissolved air water are attached to flocculated suspended matters, the bubbles and the suspended matters rise to the liquid level together to form scum, and then the scum is scraped to the outside of the box body through the foam scraping assembly, so that sewage is purified.

In the use process of the existing dissolved air flotation machine for sewage treatment, the reaction of PAC and PAM reagents and raw water is free from external force intervention, the reaction time is long, the reaction is incomplete, and the working efficiency is affected.

Disclosure of Invention

The utility model aims to provide a high-efficiency dissolved air flotation machine for sewage treatment, which has the characteristic of accelerating the reaction speed while completely reacting.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a sewage treatment is with high-efficient air supporting machine that dissolves, includes the box, the inside fixedly connected with of box is three baffle that distributes about, a plurality of the baffle separates into air supporting contact area, separation area, dross collecting box and clean water basin with the box respectively, the intercommunication has the clear water pipeline between separation area and the clean water basin, the inside lower extreme rotation of air supporting contact area is connected with two first pivots that distribute from front to back, two the equal fixedly connected with stirring leaf of outer wall of first pivot, two the equal fixedly connected with driven gear of outer wall lower extreme of first pivot, the inside lower extreme rotation of air supporting contact area is connected with the driving gear that is located between two driven gears, the inside lower extreme rotation of air supporting contact area is connected with two and driving gear and two driven gear meshing drive gears, the first motor is installed to the lower terminal surface of box, the output of first motor runs through the box and is fixedly connected with driving gear.

In order to separate solid and liquid of sewage, the efficient dissolved air flotation machine for sewage treatment is preferable in the utility model, the left side wall of the box body is fixedly connected with a dissolved air tank, the front end surface of the dissolved air tank is fixedly connected with an L-shaped dissolved air water pipeline, the other end of the dissolved air water pipeline is fixedly connected with a dispersing pipeline positioned above an air flotation contact area, the outer wall of the dispersing pipeline is fixedly connected with two water passing pipelines which are distributed front and back, and the other ends of the two water passing pipelines are fixedly connected with spray heads.

In order to remove scum in sewage, as a preferable efficient dissolved air flotation machine for sewage treatment, the inside of the box body is rotatably connected with two second rotating shafts which are distributed left and right, the outer walls of the two second rotating shafts are fixedly connected with rotating rollers, a conveyor belt is connected between the two rotating rollers in a transmission manner, and a plurality of scraping plates which are uniformly distributed are fixedly connected with the outer walls of the conveyor belt.

In order to prevent clear water from being discharged quickly, the efficient dissolved air flotation machine for sewage treatment is preferable in the utility model, the right inner side wall of the clear water tank is fixedly connected with a drain pipe, the water inlet of the drain pipe is lower than the middle two partition plates, and the water outlet of the drain pipe extends to the right side of the clear water tank.

In order to facilitate adding PAC reagent and PAM reagent into the reaction zone, the efficient dissolved air flotation machine for sewage treatment is preferable, wherein the upper end of the left side wall of the box body is fixedly connected with two PAC pipelines and PAM pipelines which are distributed front and back respectively, and one ends of the PAC pipelines and the PAM pipelines penetrate through the box body and extend to the upper part of the air flotation contact zone.

In order to continuously supply water for the dissolved air tank, the efficient dissolved air flotation machine for sewage treatment is preferable, and a return pipeline is communicated between the rear end face of the clean water tank and the rear end face of the dissolved air tank.

In order to prevent scum and suspended matters from entering the clear water tank through the clear water pipeline, the efficient dissolved air flotation machine for sewage treatment is preferably provided with a filter screen fixedly connected between the two baffle plates positioned at the left side.

In order to provide power for the operation of the scraping plate, the efficient dissolved air flotation machine for sewage treatment is preferable, a second motor is arranged on the rear end face of the box body, and the output end of the second motor penetrates through the box body and is fixedly connected with a left second rotating shaft.

Compared with the prior art, the utility model has the following beneficial effects:

PAC reagent, PAM reagent and sewage are added into the air floatation contact area, the first motor is started, the first motor drives the driving gear to rotate, the driving gear drives the two driving gears to rotate, the two driving gears drive the two driven gears to rotate, simultaneously, the two driven gears drive the first rotating shaft and the stirring blade to rotate, the PAC reagent, the PAM reagent and the sewage are fully stirred by the stirring blade, the PAC reagent, the PAM reagent and raw water are enabled to be flocculated into suspended matters through rapid reaction, and the stirring blade can also stir the larger suspended matters to prevent accumulation in the box.

Drawings

FIG. 1 is a schematic diagram of a front view of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is a schematic view of the internal structure of the air-floating contact area according to the present utility model;

in the figure: 1. a case; 2. a partition plate; 3. a filter screen; 4. an air-bearing contact area; 5. a separation zone; 6. a scum collection box; 7. a clean water tank; 8. a return line; 9. a second motor; 10. a clear water pipeline; 11. a first rotating shaft; 12. stirring the leaves; 13. a driven gear; 14. a drive gear; 15. a transmission gear; 16. a first motor; 17. a dissolved air tank; 18. a dissolved air water pipeline; 19. a dispersion pipe; 20. a water passing pipe; 21. a spray head; 22. a second rotating shaft; 23. a rotating roller; 24. a conveyor belt; 25. a scraper; 26. a drain pipe; 27. PAC piping; 28. PAM pipe.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, in the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1 to 3, an efficient dissolved air flotation machine for sewage treatment comprises a box body 1, three partition boards 2 distributed left and right are fixedly connected inside the box body 1, the box body 1 is divided into an air flotation contact area 4, a separation area 5, a scum collecting box 6 and a clean water tank 7 by the partition boards 2, a clean water pipeline 10 is communicated between the separation area 5 and the clean water tank 7, two first rotating shafts 11 distributed front and back are rotatably connected to the inner lower end of the air flotation contact area 4, stirring blades 12 are fixedly connected to the outer walls of the two first rotating shafts 11, driven gears 13 are fixedly connected to the lower ends of the outer walls of the two first rotating shafts 11, a driving gear 14 positioned between the two driven gears 13 is rotatably connected to the inner lower end of the air flotation contact area 4, two driving gears 15 meshed with the driving gear 14 and the two driven gears 13 are rotatably connected to the inner lower end of the air flotation contact area 4, a first motor 16 is arranged on the lower end surface of the box body 1, and the output end of the first motor 16 penetrates through the box body 1 and is fixedly connected with the driving gear 14.

In this embodiment: PAC reagent, PAM reagent and sewage are added into the air floatation contact area 4, the first motor 16 is started, the first motor 16 drives the driving gear 14 to rotate, the driving gear 14 drives the two transmission gears 15 to rotate, the two transmission gears 15 drive the two driven gears 13 to rotate, simultaneously, the two driven gears 13 drive the first rotating shaft 11 and the stirring blade 12 to rotate, the PAC reagent, PAM reagent and sewage are fully stirred by the stirring blade 12, the PAC reagent, PAM reagent and raw water are enabled to react and flocculate into suspended matters rapidly, the stirring blade 12 can stir the larger suspended matters, and the accumulation inside the box body 1 is prevented.

As a technical optimization scheme of the utility model, the left side wall of the box body 1 is fixedly connected with a dissolved air tank 17, the front end surface of the dissolved air tank 17 is fixedly connected with an L-shaped dissolved air water pipeline 18, the other end of the dissolved air water pipeline 18 is fixedly connected with a dispersing pipeline 19 positioned above the air floatation contact area 4, the outer wall of the dispersing pipeline 19 is fixedly connected with two water passing pipelines 20 which are distributed front and back, and the other ends of the two water passing pipelines 20 are fixedly connected with a spray head 21.

In this embodiment: because the GR pressure dissolved air tank 17 is internally provided with a dissolved air system, air and water can be dissolved, the dissolved air and water can reach the inside of the dispersing pipeline 19 through the dissolved air water pipeline 18, the dispersing pipeline 19 disperses the dissolved air and water into the two water passing pipelines 20, the dissolved air and water is sprayed into the air floatation contact area 4 through the two spray heads 21, then air bubbles in the dissolved air and water are adsorbed on suspended matters, the air bubbles and the suspended matters rise to the liquid level together to form scum, and clear water reaches the inside of the separation area 5, so that the solid-liquid separation of sewage is realized.

As a technical optimization scheme of the utility model, two second rotating shafts 22 distributed left and right are rotatably connected in the box body 1, the outer walls of the two second rotating shafts 22 are fixedly connected with rotating rollers 23, a conveyor belt 24 is connected between the two rotating rollers 23 in a transmission manner, and a plurality of scraping plates 25 which are uniformly distributed are fixedly connected to the outer walls of the conveyor belt 24.

In this embodiment: the left second rotating shaft 22 rotates, the left second rotating shaft 22 drives the rotating roller 23 fixedly connected with the left rotating shaft 22 to rotate, the left rotating roller 23 drives the right rotating roller 23 and the second rotating shaft 22 to rotate through the conveying belt 24, the conveying belt 24 drives the plurality of scrapers 25 to move, and the scrapers 25 scrape scum floating on the liquid surface, so that scum in sewage is removed.

As a technical optimization scheme of the utility model, a drain pipe 26 is fixedly connected to the right inner side wall of the clean water tank 7, a water inlet of the drain pipe 26 is lower than the middle two partition plates 2, and a water outlet of the drain pipe 26 extends to the right side of the clean water tank 7.

In this embodiment: after clear water reaches the inside of the separation zone 5, clear water passes through clear water pipeline 10 and reaches the inside of clear water pond 7, because the reason of atmospheric pressure, when adding sewage to air supporting contact zone 4 continuously, the inside water of clear water pond 7 after the separation can continuously rise, and when clear water liquid level reached the water inlet of drain pipe 26, clear water can be discharged from the inside of clear water pond 7 through drain pipe 26, prevents clear water quick discharge, influences the solid-liquid separation reaction of follow-up sewage.

As a technical optimization scheme of the utility model, the upper end of the left side wall of the box body 1 is fixedly connected with two PAC pipelines 27 and PAM pipelines 28 which are distributed front and back respectively, and one ends of the PAC pipelines 27 and the PAM pipelines 28 penetrate through the box body 1 and extend to the upper part of the air floatation contact zone 4.

In this embodiment: the PAC and PAM reagents are conveniently added to the interior of the air bearing contact zone 4.

As a technical optimization scheme of the utility model, a reflux pipeline 8 is communicated between the rear end face of the clean water tank 7 and the rear end face of the dissolved air tank 17.

In this embodiment: by arranging the return pipeline 8, when the dissolved air water in the dissolved air tank 17 starts to flow out, clean water in the clean water tank 7 enters the dissolved air tank 17 through the return pipeline 8, and water can be continuously supplied to the dissolved air tank 17.

As a technical optimization scheme of the utility model, a filter screen 3 is fixedly connected between two baffle plates 2 positioned at the left side.

In this embodiment: by adding the filter screen 3, after the scum reaches the inside of the separation zone 5, the filter screen 3 filters the scum, and after the separation zone 5 is filled with clean water, the scum floats to the liquid level again, so that the scum and suspended matters are prevented from entering the inside of the clean water tank 7 through the clean water pipeline 10.

As a technical optimization scheme of the utility model, a second motor 9 is installed on the rear end face of the box body 1, and the output end of the second motor 9 penetrates through the box body 1 and is fixedly connected with a left second rotating shaft 22.

In this embodiment: the second motor 9 is started, and the second motor 9 drives the left second rotating shaft 22 to rotate so as to provide power for the operation of the scraper 25.

Working principle: PAC reagent, PAM reagent and sewage are added into the air floatation contact area 4, the first motor 16 is started, the first motor 16 drives the driving gear 14 to rotate, the driving gear 14 drives the two transmission gears 15 to rotate, the two transmission gears 15 drive the two driven gears 13 to rotate, simultaneously, the two driven gears 13 drive the first rotating shaft 11 and the stirring blade 12 to rotate, the PAC reagent, PAM reagent and sewage are fully stirred by the stirring blade 12, the PAC reagent, PAM reagent and raw water are enabled to react and flocculate into suspended matters rapidly, the stirring blade 12 can also stir larger suspended matters to prevent accumulation in the box body 1, as the GR pressure dissolved air tank 17 is internally provided with a dissolved air system, gas and water can be fused, the dissolved air water reaches the inside of the dispersing pipeline 19 through the dissolved air water pipeline 18, the dispersing pipeline 19 disperses dissolved air water into the inside of the two water pipelines 20, the dissolved air water is sprayed into the air floatation contact area 4 through the two spray heads 21, then the air bubbles in the dissolved air water are adsorbed onto suspended matters, the air bubbles and the suspended matters rise to the liquid level together to form scum, when the reacted sewage flows to the separation area 5, the scum is filtered by the filter screen 3 after reaching the inside of the separation area 5, the scum floats to the liquid level again after the separation area 5 is filled with clear water, the scum and the suspended matters are prevented from entering the clear water pond 7 through the clear water pipeline 10, so that the sewage is separated into solid and liquid, meanwhile, the second motor 9 is started, the second motor 9 drives the left second rotating shaft 22 to rotate, the left second rotating shaft 22 drives the rotating roller 23 fixedly connected with the left rotating shaft 23 to rotate, the left rotating roller 23 drives the right rotating roller 23 and the second rotating shaft 22 through the conveyor belt 24, the plurality of scraping plates 25 move, and the scum floating on the liquid level is scraped, thereby removing scum in the sewage, after the clear water reaches the inside of the separation zone 5, the clear water reaches the inside of the clear water tank 7 through the clear water pipeline 10, and the separated clear water tank 7 continuously rises when the sewage is continuously added into the air floatation contact zone 4 due to the air pressure, when the clear water level reaches the water inlet of the drain pipe 26, the clear water can be discharged from the inside of the clear water tank 7 through the drain pipe 26, so that the quick discharge of the clear water is prevented, and the solid-liquid separation reaction of the subsequent sewage is influenced;

by providing the return pipe 8, when the dissolved air water in the dissolved air tank 17 starts to flow out, the clean water in the clean water tank 7 enters the dissolved air tank 17 through the return pipe 8, and water can be continuously supplied to the dissolved air tank 17.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (8)

1. The utility model provides a sewage treatment is with high-efficient dissolved air supporting machine, includes box (1), inside fixedly connected with of box (1) is three baffle (2) of controlling the distribution, a plurality of baffle (2) separate into air supporting contact zone (4), separation zone (5), dross collecting box (6) and clean water pond (7) respectively with box (1), the intercommunication has clear water pipeline (10), its characterized in that between separation zone (5) and clean water pond (7): the inside lower extreme rotation of air supporting contact zone (4) is connected with two first pivot (11) that distribute around, two the equal fixedly connected with stirring leaf (12) of outer wall of first pivot (11), two equal fixedly connected with driven gear (13) of outer wall lower extreme of first pivot (11), the inside lower extreme rotation of air supporting contact zone (4) is connected with driving gear (14) that are located between two driven gear (13), the inside lower extreme rotation of air supporting contact zone (4) is connected with two and driving gear (14) and two driven gear (13) meshing drive gear (15), first motor (16) are installed to the lower terminal surface of box (1), the output of first motor (16) runs through box (1) and with driving gear (14) fixed connection.

2. The efficient dissolved air flotation machine for sewage treatment according to claim 1, wherein the efficient dissolved air flotation machine is characterized in that: the left side wall fixedly connected with of box (1) dissolves gas pitcher (17), the preceding terminal surface fixedly connected with that dissolves gas pitcher (17) is L type dissolves gas water pipeline (18), the other end fixedly connected with that dissolves gas water pipeline (18) is located dispersion pipeline (19) of air supporting contact zone (4) top, the outer wall fixedly connected with of dispersion pipeline (19) is two water pipeline (20) that distribute around, two the equal fixedly connected with shower nozzle (21) of the other end of water pipeline (20).

3. The efficient dissolved air flotation machine for sewage treatment according to claim 1, wherein the efficient dissolved air flotation machine is characterized in that: the novel automatic cleaning device is characterized in that two second rotating shafts (22) distributed left and right are rotatably connected inside the box body (1), rotating rollers (23) are fixedly connected to the outer walls of the second rotating shafts (22), a conveying belt (24) is connected between the rotating rollers (23) in a transmission mode, and a plurality of scraping plates (25) which are uniformly distributed are fixedly connected to the outer walls of the conveying belt (24).

4. The efficient dissolved air flotation machine for sewage treatment according to claim 1, wherein the efficient dissolved air flotation machine is characterized in that: the clean water tank is characterized in that a drain pipe (26) is fixedly connected to the right inner side wall of the clean water tank (7), a water inlet of the drain pipe (26) is lower than the middle two partition plates (2), and a water outlet of the drain pipe (26) extends to the right side of the clean water tank (7).

5. The efficient dissolved air flotation machine for sewage treatment according to claim 1, wherein the efficient dissolved air flotation machine is characterized in that: the utility model discloses a box, including box (1), PAC pipeline (27) and PAM pipeline (28) that the left side wall upper end of box (1) is two distributed around fixedly connected with respectively, the one end of PAC pipeline (27) and PAM pipeline (28) runs through box (1) and extends to air supporting contact area (4) top.

6. The efficient dissolved air flotation machine for sewage treatment according to claim 1, wherein the efficient dissolved air flotation machine is characterized in that: a reflux pipeline (8) is communicated between the rear end face of the clean water tank (7) and the rear end face of the dissolved air tank (17).

7. The efficient dissolved air flotation machine for sewage treatment according to claim 1, wherein the efficient dissolved air flotation machine is characterized in that: a filter screen (3) is fixedly connected between the two partition boards (2) positioned at the left side.

8. A high efficiency dissolved air flotation machine for sewage treatment according to claim 3, wherein: the rear end face of the box body (1) is provided with a second motor (9), and the output end of the second motor (9) penetrates through the box body (1) and is fixedly connected with a left second rotating shaft (22).