CN219136429U

CN219136429U - Foam removing system of aeration tank

Info

Publication number: CN219136429U
Application number: CN202320305568.9U
Authority: CN
Inventors: 梁朝春; 陈盅任; 姚勇; 陈梨; 谢萌
Original assignee: Chongqing Shuangqiao Shuangquan Water Service Co ltd
Current assignee: Chongqing Shuangqiao Shuangquan Water Service Co ltd
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-06-06
Anticipated expiration: 2033-02-22

Abstract

The utility model provides an aeration tank foam removal system which comprises an aeration tank, a filter box, a foam scraping device capable of floating on the water surface, a crusher and a water pump, wherein a propeller and a plurality of high-pressure spray heads are arranged above the aeration tank, the lower side of the propeller is fixedly connected with the foam scraping device and can drive the foam scraping device to move on the water surface, the middle part of the lower side of the foam scraping device is communicated with a connecting pipe, the free end of the connecting pipe is communicated with the upper end of the crusher and is used for leading scraped foam into the crusher, the lower end of the crusher is communicated with the upper end of the filter box, one end of the water pump is communicated with the filter box, and the other end of the water pump is communicated with the high-pressure spray heads. The utility model solves the problems of high defoaming cost and incomplete defoaming by a physical method in the prior art.

Description

Foam removing system of aeration tank

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a foam removal system of an aeration tank.

Background

The method is characterized in that a large amount of foam is generated on the surface of an aeration tank for sewage treatment, the generated foam is too much, the secondary utilization of circulating water is influenced, the production progress is dragged slowly, the aeration effect is influenced, the water quality detection of purified water is not up to standard, two methods are generally adopted in the prior art for eliminating the foam, one method is a chemical method, different colors of foam are generated due to different microbial load and pollution sources in sewage, different chemical defoamers are adopted for the foam with different colors, secondary pollution is possibly caused, and additional purification treatment is needed after the foam is carried out, the residual defoamers in the water are eliminated, so that another physical defoaming method (physical method) is gradually adopted, the foam is impacted and broken by water flow sprayed at a high speed, the sedimentation performance of the sludge and impurities in the scattered foam is restored again, so that the foam is reduced, but a large amount of clean water resources are required to be introduced, the treatment cost is increased, the water resources are wasted, and the defoaming is not thorough.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model provides an aeration tank foam removal system which solves the problems of high defoaming cost and incomplete defoaming cost existing in the prior art by a physical method.

According to the embodiment of the utility model, the foam cleaning system of the aeration tank comprises the aeration tank, a filter box, a foam scraping device capable of floating on the water surface, a crusher and a water pump, wherein a propeller and a plurality of high-pressure spray heads are arranged above the aeration tank, the lower side of the propeller is fixedly connected with the foam scraping device and can drive the foam scraping device to move on the water surface, a connecting pipe is communicated with the middle part of the lower side of the foam scraping device, the free end of the connecting pipe is communicated with the upper end of the crusher and is used for leading scraped foam into the crusher, the lower end of the crusher is communicated with the upper end of the filter box, one end of the water pump is communicated with the filter box, and the other end of the water pump is communicated with the high-pressure spray heads.

Preferably, the propeller comprises a moving block, a screw rod, a guide rod and two fixing seats fixed at two opposite side edges of the top of the aeration tank, wherein two ends of the screw rod are respectively connected with the two fixing seats in a rotating mode, two ends of the guide rod are respectively fixedly connected with the two fixing seats, the moving block is sleeved on the screw rod in a threaded mode, the upper side of the moving block is provided with a groove, the guide rod is embedded into the groove, a telescopic rod is fixed on the lower side of the moving block, and the free end of the telescopic rod is fixedly connected with the foam scraping device.

Preferably, the foam scrapping device comprises an M-shaped scraping plate and floating foam, a through hole which penetrates through the middle of the scraping plate vertically is formed in the middle of the scraping plate, one end of the connecting pipe is fixed at the through hole, and the floating foam is fixed on the lower side of the scraping plate.

Preferably, the breaker includes both ends confined pipeline, dwang and motor, the coaxial rotation of dwang is connected in the pipeline, the one end of dwang runs through the pipeline and arranges the pipeline outside and coaxial fixed connection with the output shaft of motor, be equipped with helical cutting piece on the dwang.

Preferably, the middle part of the filter box is fixed with the filter plate to divide the filter box into a filter chamber and a circulating chamber, the lower end of the pipeline is communicated with the filter chamber, the side surface of the circulating chamber is also communicated with a water inlet pipe, and the water pump is communicated with the circulating chamber.

Compared with the prior art, the utility model has the following beneficial effects: the foam floating on the water surface is repeatedly scraped by the foam scraper which moves and floats on the water surface, most of the foam on the water surface can be scraped by the scraping method, the scraped foam flows into the breaker through the connecting pipe, the foam is broken by the breaker, impurities, sludge and the like in the foam are restored to the sedimentation property again, the foam flows into the filter box, after various impurities and sludge are filtered, the filtered sewage is pumped out by the water pump, high-pressure water flow is sprayed to the surface of the aeration tank through the high-pressure spray head, the foam on the water surface in the aeration tank is impacted and broken, the foam remained on the water surface is further eliminated, the eliminating efficiency of the foam is improved, and the foam is eliminated more thoroughly.

Drawings

FIG. 1 is a block diagram of a purging system according to an embodiment of the present utility model.

Fig. 2 is a view showing a structure of a bubble wiper according to an embodiment of the present utility model.

In the above figures: the high-pressure spray head 1, the movable block 2, the guide rod 3, the screw 4, the fixed seat 5, the aeration tank 6, the telescopic rod 7, the connecting pipe 8, the cutting blade 9, the pipeline 10, the filter plate 11, the water pump 12, the scraping plate 13, the through hole 14 and the water inlet pipe 15.

Detailed Description

The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.

As shown in fig. 1 and 2, an embodiment of the utility model provides a foam removing system of an aeration tank, which comprises an aeration tank 6, a filter box, a foam scraper which can float on the water surface, a breaker and a water pump 12, wherein a propeller and a plurality of high-pressure spray heads 1 are arranged above the aeration tank 6, the lower side of the propeller is fixedly connected with the foam scraper and can drive the foam scraper to move on the water surface, a connecting pipe 8 is communicated with the middle part of the lower side of the foam scraper, the free end of the connecting pipe 8 is communicated with the upper end of the breaker and is used for leading scraped foam into the breaker, the lower end of the breaker is communicated with the upper end of the filter box, one end of the water pump 12 is communicated with the filter box, and the other end of the water pump is communicated with the high-pressure spray heads 1.

The foam floating on the water surface is repeatedly scraped by the impeller, most of the foam floating on the water surface can be scraped by the scraping method, the scraped foam flows into the breaker through the connecting pipe 8 (as the foam scraper is close to the water surface and the foam itself can carry a part of water, a part of water flows into the connecting pipe 8), the foam is smashed by the breaker, impurities, sludge and the like in the foam are restored to the sedimentation property again, and then the foam flows into the filter box, after various impurities and sludge are filtered, the filtered sewage is pumped out by the water pump 12, the high-pressure water flow is sprayed to the surface of the aeration tank 6 through the high-pressure spray head 1 to impact and break the foam on the water surface in the aeration tank 6, the foam remained on the meeting surface is further eliminated, the foam elimination efficiency is improved, and the foam is eliminated more thoroughly.

In addition, only need arrange the lower filter screen of cost in the rose box and come to filter bigger impurity of volume and mud, add active carbon in the rose box simultaneously, adsorb microorganism and less granule impurity in the water, the sewage after the filtration is sprayed out from high-pressure shower nozzle 1 again, get back to aeration tank 6 again and aerate, can not introduce new water resource simultaneously, reduce cost.

The propeller comprises a moving block 2, a screw rod 4, a guide rod 3 and two fixed seats 5 fixed on two opposite side edges of the top of an aeration tank 6, wherein two ends of the screw rod 4 are respectively connected with the two fixed seats 5 in a rotating way and driven by an external stepping motor to rotate, two ends of the guide rod 3 are respectively fixedly connected with the two fixed seats 5, the moving block 2 is sleeved on the screw rod 4 in a threaded way, a groove is formed in the upper side of the moving block 2, the guide rod 3 is embedded in the groove, a telescopic rod 7 is fixed on the lower side of the moving block, the free end of the telescopic rod 7 is fixedly connected with the foam scraping device, the guide rod 3 plays a guide role for the moving block 2, and when the stepping motor drives the screw rod 4 to rotate (the stepping motor drives the screw rod 4 to rotate forwards or reversely through a set output frequency), the moving block 2 moves left and right along the axis of the screw rod 4 and does not rotate, so that the foam scraping device is driven to repeatedly move left and right.

The foam scrapping device comprises an M-shaped scrapping plate 13 and floating foam, a through hole 14 which penetrates through the scrapping plate 13 vertically is formed in the middle of the scrapping plate 13, one end of a connecting pipe 8 is fixed at the through hole 14, the floating foam is fixed on the lower side of the scrapping plate 13, and the connecting pipe 8 is a corrugated pipe.

As shown in fig. 2, under the action of floating foam, the whole foam scraper can float on the water surface, meanwhile, the propeller is connected with the scraping plate 13 by the telescopic rod 7, so that when the propeller drives the scraping plate 13 to move left and right, the foam scraper can move on the water surface all the time along with the rising or falling of the water surface of the aeration tank 6, the foam floating on the water surface is scraped, and meanwhile, the property that the connecting pipe 8 can extend is utilized, and the length of the connecting pipe 8 is not limited when the scraping plate 13 moves left and right.

In addition, since the foam in the aeration tank 6 is continuously generated, when the propeller drives the scraper 13 to move left and right and scrape the foam, the foam on the water surface is accumulated from the inclined surface on the left side or the right side of the scraper 13 and moves to the concave position in the middle part, and finally flows into the connecting pipe 8 from the through hole 14 in the middle part, and most of the foam is removed by the scraper 13.

The breaker includes both ends confined pipeline 10, dwang and motor, the coaxial rotation of dwang is connected in pipeline 10, the one end of dwang runs through pipeline 10 and arranges the pipeline 10 outside and coaxial fixed connection with the output shaft of motor, be equipped with heliciform cutting piece 9 on the dwang.

The motor drives the rotating rod to rotate, foam flows into the pipeline 10 from the upper end of the pipeline 10, the foam is crushed by the cutting blade 9, and sludge, impurities and the like in the scattered foam can restore the sedimentation performance again so as to reduce the foam, and the sludge and the impurities flow into the filter box from the lower end of the pipeline 10 along with sewage for filtration.

The middle part of rose box is fixed with filter 11 to divide into filter cavity and circulation cavity with the rose box, the lower extreme and the filter cavity intercommunication of pipeline 10, the left surface of circulation cavity still communicates there is inlet tube 15, water pump 12 and circulation cavity intercommunication.

And a proper amount of activated carbon is put into the filtering chamber for adsorbing small-particle impurities and microorganisms, so that the impurities, the sludge and the microorganisms form a complex or solid with a large volume in the filtering chamber, the complex or the solid is blocked by the filtering plate 11 and can only be gathered in the filtering chamber, sewage (the impurities and other substances are removed) after simple filtering enters the circulating chamber and is pumped to the high-pressure spray head 1 above the aeration tank 6 by the water pump 12, foam in the aeration tank 6 is sprayed, and a small part of foam remained on the water surface is further eliminated.

In addition, if the amount of water carried in the foam is too small, the water in the circulation chamber is too small, so that the high-pressure spray head 1 cannot work normally and sprays and breaks the foam remained on the water surface, and therefore, a proper amount of water can be injected into the circulation chamber from the water inlet pipe 15, and the normal operation of the high-pressure spray head 1 is ensured.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims

1. An aeration tank foam removal system, characterized in that: including aeration tank, rose box, can float and scrape bubble ware, breaker and the water pump on the surface of water, the top of aeration tank is equipped with propeller and a plurality of high pressure shower nozzle, the downside of propeller and scrape bubble ware fixed connection and can drive and scrape the bubble ware and remove at the surface of water, the downside middle part intercommunication of scraping the bubble ware has the connecting pipe, the free end of connecting pipe communicates with the upper end of breaker for in letting in the breaker with the foam of striking off, the lower extreme of breaker communicates with the upper end of rose box, the one end and the rose box intercommunication of water pump, the other end communicates with high pressure shower nozzle.

2. An aeration tank foam removal system as set forth in claim 1, wherein: the propeller comprises a moving block, a screw rod, a guide rod and two fixing seats fixed on two opposite side edges of the top of the aeration tank, wherein two ends of the screw rod are respectively connected with the two fixing seats in a rotating mode, two ends of the guide rod are respectively fixedly connected with the two fixing seats, the moving block is sleeved on the screw rod in a threaded mode, a groove is formed in the upper side of the moving block, the guide rod is embedded into the groove, a telescopic rod is fixed on the lower side of the moving block, and the free end of the telescopic rod is fixedly connected with the foam scraping device.

3. An aeration tank foam removal system as set forth in claim 1, wherein: the foam scraping device comprises an M-shaped scraping plate and floating foam, a through hole which penetrates through the middle of the scraping plate from top to bottom is formed in the middle of the scraping plate, one end of the connecting pipe is fixed at the through hole, and the floating foam is fixed on the lower side of the scraping plate.

4. An aeration tank foam removal system as set forth in claim 3, wherein: the connecting pipe is a corrugated pipe.

5. An aeration tank foam removal system as set forth in claim 1, wherein: the breaker includes both ends confined pipeline, dwang and motor, the coaxial rotation of dwang is connected in the pipeline, the one end of dwang runs through the pipeline and arranges the pipeline outside and coaxial fixed connection with the output shaft of motor in, be equipped with helical cutting piece on the dwang.

6. An aeration tank foam removal system as set forth in claim 5, wherein: the middle part of rose box is fixed with the filter to divide into filter cavity and circulation cavity with the rose box, the lower extreme and the filter cavity intercommunication of pipeline, the side of circulation cavity still communicates there is the inlet tube, water pump and circulation cavity intercommunication.