CN215365089U

CN215365089U - Biochemical pond fire fighting equipment of activated sludge

Info

Publication number: CN215365089U
Application number: CN202121816067.4U
Authority: CN
Inventors: 庄叶君; 李志华; 王成; 庄苏敏; 肖达; 薛伟石; 蒋丽霞; 贺晨峻; 李昕辰
Original assignee: Yixing Su Jia Environmental Protection Equipment Co ltd
Current assignee: Yixing Su Jia Environmental Protection Equipment Co ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2021-12-31
Anticipated expiration: 2031-08-05

Abstract

The application discloses biochemical pond fire fighting equipment of activated sludge. The defoaming device for the activated sludge biochemical tank comprises a driving rack, a driven rack, a stirring wheel, a spray head, a spraying valve, a water conduit, a driving motor and a water pump; the driving rack and the driven rack are oppositely arranged on two side walls of the biochemical pool; the stirring wheel comprises a rotating shaft, a stirring blade, a driven gear and a driving gear; the driven gear and the driving gear are oppositely arranged at two ends of the rotating shaft, the driven gear is in transmission connection with the driven rack, and the driving rack is in transmission connection with the driving rack; the driving motor is connected with the rotating shaft; the stirring blades are arranged at intervals along the circumferential direction of the rotating shaft, and defoaming spaces are formed between every two adjacent stirring blades; the stirring blade is provided with a water spraying groove; the spray head is arranged in the water spraying groove; the water conduit is connected with the water pump; the water conduit is provided with a water jet; the water spraying opening is connected with the spray head through a water spraying valve. The foam can be effectively eliminated, and the damage condition of the foam can be reduced.

Description

Biochemical pond fire fighting equipment of activated sludge

Technical Field

The application relates to biochemical fire fighting equipment technical field especially relates to a biochemical pond fire fighting equipment of activated sludge.

Background

In daily life, penetrating fluid generated by garbage is generally treated by an activated sludge biochemical method, and foams are generated in a biochemical pool in the treatment process. The foam has certain viscosity, so that a large amount of solids are trapped in a floating foam layer of an aeration tank and generate floating layer turnover, the oxygenation efficiency of the aeration tank is reduced, in a pure oxygen sealed activated sludge system, the foam enters an oxygen compressor to cause a fire, and when the foam flows out and precipitates, suspended solids in effluent are increased under a baffle plate of the sedimentation tank to cause unsafe conditions of effluent quality deterioration and the like.

At present, two modes are generally adopted for eliminating foam in an activated sludge biochemical pool, one mode is a chemical defoaming method, the chemical defoaming method can solve the problem of foam in a short time by adding a chemical agent, the operation is simple, but the chemical agent can generate chemical influence on sludge, and the water quality of effluent can also have great influence. The other is mechanical defoaming, which treats the foam by physical means, but most of the mechanical defoaming methods cannot completely eliminate the foam due to the high viscosity of the foam, and the device is damaged due to the long-term action of various biochemical substances contained in the liquid.

Consequently, design a biochemical pond fire fighting equipment of activated sludge, can effectively eliminate the foam, also can reduce the damage condition of self, be present the problem that awaits the solution urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a defoaming device for an activated sludge biochemical pool.

The utility model has the innovation points that the liquid layer on the surface can be scattered through the stirring blade on the stirring wheel so as to eliminate the surface layer easily generated by foam, and the spray head arranged on the stirring blade can directly break the foam so as to achieve the aim of eliminating the foam. The spray heads arranged oppositely can also spray water on the stirring blades to clean the stirring blades to a certain degree, so that the phenomena that the stirring blades are corroded and the spray heads are blocked are avoided.

In order to achieve the purpose, the technical scheme of the application is as follows: an active sludge biochemical pool defoaming device comprises a driving rack, a driven rack, a stirring wheel, a nozzle, a spraying valve, a water conduit, a driving motor and a water pump; the driving rack and the driven rack are oppositely arranged on two side walls of the biochemical pool; the stirring wheel comprises a rotating shaft, a stirring blade, a driven gear and a driving gear; the driven gear and the driving gear are oppositely arranged at two ends of the rotating shaft, the driven gear is in transmission connection with the driven rack, and the driving rack is in transmission connection with the driving rack; the driving motor is connected with the rotating shaft and is positioned at one end of the rotating shaft close to the driving gear; the stirring blades are arranged at intervals along the circumferential direction of the rotating shaft, and defoaming spaces are formed between every two adjacent stirring blades; the stirring blade is provided with a water spraying groove; the spray head is arranged in the water spraying groove; the water guide pipe is arranged along the axial direction of the rotating shaft, and one end of the water guide pipe is connected with the water pump; the water conduit is provided with a water jet; the water spraying opening is connected with the spray head through a water spraying valve.

In-process of above-mentioned realization, can break up the liquid layer on surface through the stirring vane on the stirring wheel, can eliminate the easy superficial layer that produces of foam like this, can not produce the foam very fast again after eliminating the foam. In forming between the defoaming between stirring vane, be provided with the shower nozzle on the different stirring vane, the shower nozzle water spray can directly break the foam, reaches the purpose of eliminating the foam, and in addition, the shower nozzle that sets up relatively also can be with the water injection on stirring vane, carries out certain washing to stirring vane, avoids long-time use stirring vane to be stained with and glues the phenomenon that takes place to corrode and block up the shower nozzle behind the penetrant in the biochemical pond, influences whole fire fighting equipment's operation and life.

Preferably, the spray heads are located at both sides of the agitating blade, and the spray heads are spaced apart along the axis of the rotating shaft.

The in-process of above-mentioned realization sets up a plurality of shower nozzles on same stirring vane, can realize the defoaming work on the whole biochemical pond size width, reduces the number of times that the stirring wheel made a round trip to work, improves the efficiency of defoaming.

Preferably, the ejection openings of the heads are located on the same straight line.

In the process of realizing the method, the spray heads are positioned on the same straight line, and the position depth of the spray heads in the biochemical pool can be integrally controlled, so that the size of foam to be eliminated by the spray heads can be set as required, and the purpose of controlling the form size of the foam is achieved to a certain extent.

Preferably, the spray heads on different stirring blades in the defoaming chamber are arranged in a staggered mode.

In the process of the realization, the spray heads on different stirring blades between the same defoaming are arranged in a staggered manner, so that the spray heads on different stirring blades can be prevented from generating water flow when simultaneously spraying defoaming, and the water flow can push against the inner part of foam between defoaming to break the water flow, thereby reducing the defoaming effect.

Preferably, the placing table is arranged at the end of the driving rack and the driven rack which are positioned at the same side; one end of the driven gear is laid along the placing table; one end of the driving gear is laid along the rest table.

In the process of the realization, the placing table is arranged on the same side of the driven rack and the driving rack, the stirring wheel moves to the placing table through the driven rack and the driving rack after the operation is completed for storage, the situation that the stirring blade is corroded in the biochemical pool for a long time and then influences the function and the service life of the defoaming device can be avoided, and meanwhile, the situation that the stirring blade is located in the biochemical pool to influence the treatment effect on liquid in the biochemical pool is also avoided.

The utility model has the beneficial effects that: can break up the liquid layer on surface through the stirring vane on the stirring wheel, can eliminate the easy superficial layer that produces of foam like this, can not produce the foam very fast again after eliminating the foam. In forming between the defoaming between stirring vane, be provided with the shower nozzle on the different stirring vane, the shower nozzle water spray can directly break the foam, reaches the purpose of eliminating the foam, and in addition, the shower nozzle that sets up relatively also can be with the water injection on stirring vane, carries out certain washing to stirring vane, avoids long-time use stirring vane to be stained with and glues the phenomenon that takes place to corrode and block up the shower nozzle behind the penetrant in the biochemical pond, influences whole fire fighting equipment's operation and life.

Drawings

FIG. 1 is a schematic structural diagram of a defoaming device for an activated sludge biochemical tank in an embodiment of the utility model.

Icon: 11. a drive rack; 12. a driven rack; 02. a stirring wheel; 21. a rotating shaft; 22. a stirring blade; 221. a water spraying groove; 23. a drive gear; 24. a driven gear; 03. a spray valve; 04. a spray head; 05. a water conduit; 06. a water pump; 07. a drive motor; 08. a rest table.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

Example 1:

referring to fig. 1, fig. 1 is a schematic structural diagram of a defoaming device for an activated sludge biochemical tank in this embodiment. The embodiment provides an active sludge biochemical pond fire fighting equipment includes drive rack 11, driven rack 12, stirring wheel 02, shower nozzle 04, spray valve 03, leading water pipe 05, driving motor 07 and water pump 06. The stirring wheel 02 includes a rotating shaft 21, a stirring blade 22, a driven gear 24, and a driving gear 23. The driven gear 24 and the driving gear 23 are oppositely disposed at both ends of the rotating shaft 21. The driven gear 24 and the driving gear 23 are matched with the driving racks 11 and the driven racks 12 which are oppositely arranged on two side walls of the biochemical pool, specifically, the driven gear 24 is in transmission connection with the driven racks 12, and the driving racks 11 are in transmission connection with the driving racks 11. The driving motor 07 is connected to the rotating shaft 21 and is located at one end of the rotating shaft 21 near the driving gear 23.

It should be noted that the rotating shaft 21 is connected by matching the gears at both ends with the racks, so that the rotating shaft can move along the axial direction of the racks under the driving of the driving motor 07 to perform defoaming operation. The work is usually returned to the original position for parking after the work is completed. In order to improve the parking environment of the device and prevent the stirring wheel 02 from being corroded and damaged due to long-term contact with sewage in the biochemical tank, a placing table 08 is arranged at the end of the driving rack 11 and the driven rack 12 which are positioned on the same side. One end of the driven gear 24 is laid along the rest 08. One end of the drive gear 23 is laid along the rest 08. Therefore, the stirring wheel 02 moves to the placing table 08 through the driven rack 12 and the driving rack 11 to be placed after the operation is completed, the situation that the stirring blade 22 is corroded in the biochemical pool for a long time and then influences the function and the service life of the defoaming device can be avoided, and meanwhile, the situation that the stirring blade 22 is located in the biochemical pool and influences the treatment effect on liquid in the biochemical pool is also avoided.

The stirring blades 22 are arranged at intervals in the circumferential direction of the rotating shaft 21, and defoaming spaces are formed between adjacent stirring blades 22. The stirring blade 22 is provided with a water spraying groove 221. The shower head 04 is disposed in the water spray groove 221. The water conduit 05 is disposed along the axial direction of the rotation shaft 21, and one end thereof is connected to the water pump 06. The water conduit 05 is provided with a water jet. The water jet is connected with the nozzle 04 through a water jet valve.

The nozzle 04 is used as a main mechanism for defoaming operation, and the defoaming operation effect can be ensured only by reasonably setting the position and the injection angle of the nozzle. The arrangement of the spray heads 04 is various, and in this embodiment, the spray heads 04 are located on both sides of the stirring blade 22 with respect to both side surfaces of the single stirring blade 22, and the spray heads 04 are arranged at intervals along the axis of the rotating shaft 21. Set up a plurality of shower nozzles 04 on same stirring vane 22, can realize the defoaming work on the whole biochemical pond size width, reduce the number of times that stirring wheel 02 made a round trip to work, improve the efficiency of defoaming.

The spray orifices of the spray heads 04 are positioned on the same straight line, so that the position depth of the spray heads 04 in the biochemical pool can be integrally controlled, the size of foam to be eliminated by the spray heads 04 can be set according to needs, and the purpose of controlling the foam shape and size is achieved to a certain extent.

On adjacent different stirring vane 22, shower nozzle 04 on different stirring vane 22 in the defoaming is crisscross to be set up, can avoid shower nozzle 04 on different stirring vane 22 to take place dashing of rivers when spraying the defoaming simultaneously and support and make the effect of defoaming internal part foam can't be broken and then reduce the defoaming by the rivers in the defoaming.

In addition, in order to achieve effective cleaning of the stirring blade 22 and the spray heads 04, the spray position of the spray heads 04 may be located above the spray heads 04 on the opposite stirring blade 22, that is, the spray position is relatively closer to the blade root of the stirring blade 22 than the spray heads 04. This allows for a very effective cleaning of the spray head 04. In addition, the spraying direction is set in such a way that the condition that the spray head 04 directly sprays into the biochemical pool liquid to generate foam again is avoided.

It can be understood that the shower nozzle 04 controls the start and stop condition of spraying through the spray valve 03, and the spray valve 03 is also equivalent to a pressure valve simultaneously, and when the water pressure in the leading water pipe 05 was great, open the spray valve 03, the rivers pressure of spraying was great, and the defoaming effect is preferred. It can be understood that, in order to save water, the spraying valve 03 can also control the spraying head 04 to spray intermittently as long as the foam can be effectively eliminated.

The concrete implementation manner of the activated sludge biochemical pool defoaming device provided by the embodiment is as follows:

when defoaming work is needed, the driving motor 07 and the water pump 06 are started, and the stirring wheel 02 starts to rotate forwards from the rest 08 along the axial direction of the rack under the action of the driving motor 07. The stirring blade 22 continuously stirs the sewage, so that the surface layer on the surface of the sewage, which is easy to bubble, is broken up, and a part of foam can be eliminated. The water that sets up shower nozzle 04 on stirring vane 22 and pass through water pump 06 drainage jets rivers outward after sprinkling valve 03 opens, will be located the foam elimination in the defoaming room. Meanwhile, when the stirring blade 22 continues to move to be exposed from the sewage, the jet flow of the nozzle 04 continues to be sprayed on the stirring blade 22 to flush the stirring blade 22. After the defoaming operation is completed, the stirring wheel 02 returns to the placing table 08 under the driving of the driving motor 07 to be parked.

The liquid layer on the surface can be broken up by the stirring blades 22 on the stirring wheel 02, so that the surface layer which is easy to generate foam can be eliminated, and the foam can not be generated again soon after the foam is eliminated. In forming the defoaming room between stirring vane 22, be provided with shower nozzle 04 on the stirring vane 22 of difference, shower nozzle 04 sprays water and can directly break the foam, reaches the purpose of eliminating the foam, in addition, the shower nozzle 04 that sets up relatively also can spray water on stirring vane 22, carries out certain washing to stirring vane 22, avoids long-time use stirring vane 22 to be stained with and glues the phenomenon that takes place to corrode and block up shower nozzle 04 behind the penetrant in the biochemical pond, influences whole fire fighting equipment's operation and life.

The described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Claims

1. The activated sludge biochemical pool defoaming device is characterized by comprising a driving rack, a driven rack, a stirring wheel, a spray head, a spraying valve, a water conduit, a driving motor and a water pump; the driving rack and the driven rack are oppositely arranged on two side walls of the biochemical pool; the stirring wheel comprises a rotating shaft, a stirring blade, a driven gear and a driving gear; the driven gear and the driving gear are oppositely arranged at two ends of the rotating shaft, the driven gear is in transmission connection with the driven rack, and the driving rack is in transmission connection with the driving rack; the driving motor is connected with the rotating shaft and is positioned at one end, close to the driving gear, of the rotating shaft; the stirring blades are arranged at intervals along the circumferential direction of the rotating shaft, and defoaming spaces are formed between every two adjacent stirring blades; a water spraying groove is formed in the stirring blade; the spray head is arranged in the water spraying groove; the water diversion pipe is arranged along the axial direction of the rotating shaft, and one end of the water diversion pipe is connected with the water pump; the water conduit is provided with a water jet; the water spray nozzle is connected with the spray head through a water spray valve.

2. The activated sludge biochemical pool defoaming apparatus as claimed in claim 1, wherein said nozzles are located at both sides of said stirring blade, and said nozzles are spaced along the axis of said rotating shaft.

3. The activated sludge biochemical pool defoaming apparatus as claimed in claim 2, wherein the spray nozzles of said spray nozzles are located on the same straight line.

4. The activated sludge biochemical pool defoaming device as claimed in claim 3, wherein said nozzles on different said stirring blades in said defoaming chamber are staggered.

5. The activated sludge biochemical pool defoaming device as claimed in claim 1, wherein a placing table is arranged at the end of the same side of the driving rack and the driven rack; one end of the driven gear is laid along the placing table; one end of the driving gear is laid along the rest table.