CN211462198U

CN211462198U - Odor isolation device of primary sedimentation tank for sewage treatment

Info

Publication number: CN211462198U
Application number: CN201921942484.6U
Authority: CN
Inventors: 杨国华
Original assignee: SHANGHAI BEISHENG BUILDING ENGINEERING DEVELOPMENT CO LTD
Current assignee: Xiuqi Construction Group Co ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-09-11
Anticipated expiration: 2029-11-06

Abstract

The utility model discloses an isolated device of foul smell in pond is just deposiing to sewage treatment, its technical scheme main points are: including the preliminary sedimentation tank, the middle part of preliminary sedimentation tank is provided with a pivot, the preliminary sedimentation tank is provided with the gyration mud scraper, the central point in preliminary sedimentation tank puts and is provided with the drive gyration mud scraper and rotates driving motor, and the upside of gyration mud scraper is provided with the truss corridor that can follow the gyration mud scraper and rotate together, the integral covering has the gas collecting channel between truss corridor and the preliminary sedimentation tank, and the top of gas collecting channel is provided with a plurality of steelframes that are used for supporting the gas collecting channel. The utility model has the advantages that: can reduce the leakage of odor.

Description

Odor isolation device of primary sedimentation tank for sewage treatment

Technical Field

The utility model relates to a sewage treatment technical field, concretely relates to sewage treatment is with isolated device of foul smell in just heavy pond.

Background

Along with the acceleration of the urbanization process, the urban center area is continuously enlarged, more established sewage treatment plants are also brought into the urban center area, the periphery of the plant area is often developed into densely populated residential living areas and public living areas, the phenomenon that the odor of the sewage treatment plant disturbs residents begins to emerge, the lives of the residents are seriously influenced, and the economic value of the land parcel is reduced to different degrees. The foul odor generating source in the sewage treatment plant only needs to be constructed by a coarse grating, a primary sedimentation tank, a grit chamber, an aeration tank, a biological reaction tank and a sludge storage tank (sludge concentration tank).

The primary sedimentation tank is one of the primary sedimentation tanks in sewage treatment, and is generally arranged behind a grit chamber and in front of an aeration tank of the sewage treatment plant. The primary sedimentation tank is mainly used for removing easily-precipitated solid suspended particles in sewage so as to reduce the load of suspended matters and organic pollutants in a subsequent biochemical treatment working section and improve the activity of microorganisms in activated sludge. The primary sedimentation tank can be divided into three types, namely a horizontal flow type, a vertical flow type and a radial flow type according to the direction of water flow in the tank, and the scheme aims at the radial flow type primary sedimentation tank (the plane of the tank body is mostly circular, the diameter is large, the depth is small, the diameter is 20-100 meters, and the depth of water in the center of the tank is not more than 4 meters).

Sludge precipitated in the primary sedimentation tank can generate (stink) odor (mainly comprising hydrogen sulfide and other sulfur-containing gases) in the anaerobic digestion process, the odor can cause toxic hazard of different degrees to human breathing, digestion, cardiovascular, endocrine and nervous systems, the odor of the primary sedimentation tank is strong and harmful to human health, and the primary sedimentation tank in the sewage treatment plant is bound to carry out deodorization engineering on the primary sedimentation tank in the sewage treatment plant in order to reduce the influence of the primary sedimentation tank in the sewage treatment plant on the surrounding environment as far as possible.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an isolated device of foul smell in preliminary sedimentation pond for sewage treatment, its advantage is the revealing of reducible foul smell.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides an isolated device of foul smell in pond is just sunk with sewage treatment, includes just sinking the pond, the middle part in just sinking the pond is provided with a pivot, just sinking the pond and being provided with the gyration and scraping the mud machine, the central point in just sinking the pond puts and is provided with the drive gyration and scrapes the mud machine and rotate driving motor, and the upside of gyration is scraped the mud machine and is provided with and follows the gyration and scrape the same pivoted truss corridor of mud machine, the truss corridor has the gas collecting channel with just sinking the whole cover between the pond, and the top of gas collecting channel is provided with a plurality of steelframes that are used for supporting the gas collecting channel.

Through above-mentioned technical scheme, the during operation of just sinking the pond, mud in the sewage is depositd to bottom in the pond in just sinking the pond, opens driving motor afterwards, and driving motor's rotation can drive the mud discharge of gyration mud scraper stirring bottom of the pool and just sink the pond. The sludge precipitated in the primary sedimentation tank can generate (stink) odor due to the anaerobic digestion process, and the odor is spread by the stirring of the rotary mud scraper. The gas-collecting hood is arranged on the upper side of the primary sedimentation tank, so that most of odor can be limited between the primary sedimentation tank and the gas-collecting hood, and the leakage of the odor is reduced.

The utility model discloses further set up to: the gas-collecting hood is made of PVDF film (polyvinylidene fluoride film).

Through the technical scheme, the PVDF has the advantages of high mechanical strength and toughness, mould resistance, high wear resistance, high permeability resistance to gas and liquid, good heat-resistant stability, flame retardance, low smoke, good creep resistance in the temperature raising process, high purity, easiness in melt processing, resistance to most chemicals and solvents, rigid and flexible forms and the like. Therefore, the membrane material has good advantages and long service life when being used as a gas collecting hood.

The utility model discloses further set up to: and a sealing draped curtain is arranged on the inner surface of the gas collecting hood close to the inner peripheral wall of the primary sedimentation tank, and the lower edge of the sealing draped curtain vertically extends into the water in the primary sedimentation tank.

Through the technical scheme, the sealing and covering effect of the gas collecting hood of the primary settling tank is improved, and the leakage of odor is further reduced.

The utility model discloses further set up to: a plurality of the steelframe is latticed or radial and evenly sets up at interval along the circumferencial direction of just sinking the pond, but the one end of steelframe passes through the gyro wheel and connects at the top of just sinking the peripheral pool wall in pond rollably, the other end of steelframe passes through support ring interconnect, the support ring rigid coupling is at the top of pivot, but the both ends of truss corridor are connected at the top of just sinking the peripheral pool wall in pond rollably through the gyro wheel respectively, the truss corridor is divided into two by the support ring in the middle part, and the lateral wall fixed connection of truss corridor and support ring, the slide rail of mutually supporting with the gyro wheel is seted up at the top of just sinking the peripheral pool wall.

Through the technical scheme, the plurality of steel frames are uniformly covered above the primary sedimentation tank, so that the fixation of the steel frames to the gas collecting hood is more stable, and the gas collecting hood can completely cover the top of the primary sedimentation tank. A plurality of steelframes and truss corridor pass through support ring interconnect and form a complete whole, and simultaneously, a plurality of steelframes and truss corridor pass through the gyro wheel and rotate with the slide rail is stable to steelframes and truss corridor that make are stabilized and are rotated at the top of the peripheral pool wall of just sinking the pond, strengthen the stability of structure.

The utility model discloses further set up to: the gas-collecting hood is hoisted on the steel frame through a lifting rope.

Through above-mentioned technical scheme, the stable top of hanging the gas collecting channel in the pond that just falls of steelframe, the foul smell restriction is in the gas collecting channel simultaneously, and then reduces the foul smell direct contact steelframe to the corruption problem of steelframe.

The utility model discloses further set up to: the upside of gas collecting channel is provided with the blast pipe, the lower extreme of blast pipe is located just sink pond central point and put the department, just the lower extreme of blast pipe has a plurality of collecting pipes through pipeline swivelling joint head sealing connection, pipeline swivelling joint head and collecting pipe pass through the tuber pipe support mounting on the truss corridor, the lower extreme of collecting pipe is sealed run through extremely inside the gas collecting channel.

Through above-mentioned technical scheme, the gas collecting channel is collected the back restriction with the foul smell in the gas collecting channel, take out the foul smell from the gas collecting channel through extending to the inside collecting pipe of gas collecting channel, the foul smell enters into the blast pipe through pipeline swivelling joint head, finally discharges the foul smell through the blast pipe, and then reduce and cause too big pressure destruction gas collecting channel because of the foul smell is too much to the gas collecting channel to further strengthen the stability of device, the staff of also being convenient for carries out further processing to the foul smell, the practicality is stronger.

The utility model discloses further set up to: the collecting pipe extends to the inside tip sealing connection of gas collecting channel has the breathing pipe, the breathing pipe is along the bar pipe of just heavy pipe radial extension, has evenly seted up a plurality of through-holes on the global of breathing pipe.

Through above-mentioned technical scheme, the breathing pipe that the bar set up can cover more area in the gas collecting channel, and the entering is convenient for the foul smell and passes through the through-hole and enter into in the breathing pipe, simultaneously because the breathing pipe sets up on the collecting pipe, the collecting pipe can drive the breathing pipe and rotate together when following truss corridor pivoted to further increase the deodorization scope of breathing pipe, the foul smell of reinforcing breathing pipe is inhaled the effect.

The utility model discloses further set up to: the one end rigid coupling that the blast pipe deviates from pipeline swivelling joint head has an air exhauster, and the other end intercommunication of air exhauster has the foul smell scrubbing tower.

Through above-mentioned technical scheme, the foul smell effect of removing of breathing pipe can further be strengthened in the setting of air exhauster, and simultaneously, the foul smell can be purified, the pollution of odor is reduced to the setting of foul smell scrubbing tower.

To sum up, the utility model discloses following beneficial effect has:

firstly, by arranging the gas-collecting hood and the sealing drapes, the leakage of odor can be reduced, and meanwhile, the gas-collecting hood is erected by using a steel frame, so that the device is more stable;

secondly, odor emitted by the primary sedimentation tank is absorbed and removed more fully, the air suction pipe can rotate along with the air collecting hood and the truss gallery, so that the air suction pipe can cover a larger range above the primary sedimentation tank, and meanwhile, the air suction pipe can obtain a more sufficient odor absorption and removal effect due to the arrangement of the air suction fan;

and thirdly, the odor washing tower is arranged, so that the odor can be further purified, and the pollution of the odor is reduced.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

FIG. 2 is a schematic view showing the connection between the ozone scrubbing tower and the primary sedimentation tank.

In the figure, 1, a primary sedimentation tank; 11. an effluent weir; 12. a rotating shaft; 13. a water inlet pipe; 14. a sludge discharge pipe; 15. a rotary mud scraper; 16. a drive motor; 2. a support ring; 3. a truss corridor; 4. a roller; 5. a slide rail; 6. a gas-collecting hood; 61. sealing the drapes; 7. a steel frame; 71. a reinforcement ring; 72. a reinforcing bar; 73. a lifting rope; 8. an exhaust pipe; 81. an air duct bracket; 82. a pipeline rotary connector; 83. a collection pipe; 84. an air intake duct; 841. a through hole; 85. an exhaust fan; 9. the foul gas washes the tower.

Detailed Description

Example (b): an odor isolation device of a primary sedimentation tank 1 for sewage treatment is disclosed, as shown in fig. 1 and fig. 2, comprising a primary sedimentation tank 1, wherein the periphery of the primary sedimentation tank 1 is cylindrical, the bottom of the primary sedimentation tank 1 is conical, the top of the peripheral tank wall of the primary sedimentation tank 1 is provided with an effluent weir 11, the effluent weir 11 is annular and is concentric with the primary sedimentation tank 1, and the side of the effluent weir 11 is provided with a water outlet for discharging precipitated sewage. The middle part of the primary sedimentation tank 1 is vertically and fixedly connected with a rotating shaft 12, a water inlet pipe 13 for discharging sewage is arranged in the rotating shaft 12 in a penetrating manner, a sludge discharge pipe 14 is further arranged at the bottom of the primary sedimentation tank 1, a rotary sludge scraper 15 for scraping sludge on the bottom wall of the primary sedimentation tank 1 is vertically and fixedly connected to the rotating shaft 12 in the middle of the primary sedimentation tank 1, the rotary sludge scraper 15 is attached to the bottom wall of the primary sedimentation tank 1, the side wall of the rotary sludge scraper 15 is fixedly connected to the circumferential surface of the rotating shaft 12, a driving rotary sludge scraper 15 is arranged at the central position of the primary sedimentation tank 1 to rotate a driving motor 16, the driving motor 16 is arranged in the rotating shaft 12, an output shaft of the driving motor 16 is coaxially and fixedly connected with the rotating shaft 12 to drive the rotating shaft 12 to rotate, and meanwhile.

As shown in fig. 1 and 2, a supporting ring 2 is vertically and fixedly connected to the top of the rotating shaft 12, a truss gallery 3 capable of rotating along with the rotating mud scraper 15 and crossing the periphery of the primary sedimentation tank is arranged on the upper side of the rotating mud scraper 15, two ends of the truss gallery 3 are respectively connected to the top of the peripheral tank wall of the primary sedimentation tank 1 through rollers 4 in a rolling manner, the truss gallery 3 is divided into two parts by the supporting ring 2 in the middle, the truss gallery 3 is fixedly connected with the side walls of the supporting ring 2, slide rails 5 matched with the rollers 4 are arranged on the top of the peripheral tank wall of the primary sedimentation tank 1, the slide rails 5 are circular, and the center of the slide rails 5 is concentric with the center of the primary sedimentation tank 1.

As shown in fig. 1 and 2, a gas-collecting hood 6 is integrally covered between the truss gallery 3 and the primary sedimentation tank 1, the gas-collecting hood 6 is made of PVDF (polyvinylidene fluoride) film, and a plurality of steel frames 7 for supporting the gas-collecting hood 6 are arranged above the gas-collecting hood 6. In this embodiment, a plurality of steelframes 7 are radial and evenly set up at interval along the circumferencial direction of just sinking pond 1, and the one end of steelframe 7 passes through gyro wheel 4 and can connect in the slide rail 5 at the peripheral pool wall top of just sinking pond 1 with rolling, and the lateral wall of steelframe 7 and the lateral wall fixed connection of support ring 2. Be connected with three strengthening ring 71 that the periphery is crescent between adjacent steelframe 7, strengthening ring 71 and the pool that just falls set up with one heart, and strengthening ring 71 evenly arranges along the length direction of steelframe 7, and the strengthening ring 71 of outermost side is located the avris department of steelframe 7. The middle position of the adjacent steel frame 7 is provided with a reinforcing rod 72, the reinforcing rod 72 is vertically and fixedly connected with the adjacent reinforcing ring 71, the reinforcing rod 72 and the steel frame 7 are vertically and fixedly connected with a lifting rope 73, and the tail end of the lifting rope 73 is connected with the upper surface of the gas collecting hood 6 through a connecting hood. The inner surface of the gas-collecting hood 6 close to the inner peripheral wall of the primary sedimentation tank 1 is provided with a sealing draped curtain 61, and the lower edge of the sealing draped curtain 61 vertically extends into the water of the water outlet weir 11 at the side of the primary sedimentation tank 1, thereby improving the sealing and covering effect of the gas-collecting hood 6 of the primary sedimentation tank 1 and further reducing the leakage of odor.

As shown in fig. 1 and 2, the exhaust pipe 8 is arranged on the upper side of the gas collecting hood 6, the lower end of the exhaust pipe 8 is located at the center of the primary sedimentation tank 1, the lower end of the exhaust pipe 8 is connected with two collecting pipes 83 through a pipe rotary connector 82 in a sealing manner, the pipe rotary connector 82 and the collecting pipes 83 are installed on the truss gallery 3 through a pipe support 81, one end of the pipe support 81 is fixedly connected with the side walls of the pipe rotary connector 82 and the collecting pipes 83, the other end of the pipe support 81 is fixedly connected with the truss gallery 3, the collecting pipes 83 are obliquely arranged with the horizontal plane, and the lower end of the lowest point of the collecting pipes 83 penetrates into the gas collecting hood. The end part of the collecting pipe 83 extending to the inside of the gas collecting hood 6 is hermetically connected with a gas suction pipe 84, the gas suction pipe 84 is a strip pipe extending along the radial direction of the primary sedimentation pipe, a plurality of through holes 841 for sucking odor are evenly arranged on the circumferential surface of the gas suction pipe 84, and the gas suction pipe 84 is arranged in parallel with the surface water surface of the primary sedimentation tank 1. One end of the air suction pipe 84 on the radial inner side of the primary sedimentation tank 1 is close to the center of the primary sedimentation tank 1, and one end of the air suction pipe 84 on the radial outer side of the primary sedimentation tank 1 is close to the effluent weir 11 of the primary sedimentation tank 1; the upper side of the air suction pipe 84 is positioned above the tank surface of the primary sedimentation tank 1.

As shown in fig. 1 and 2, an exhaust fan 85 is fixedly connected to one end of the exhaust pipe 8 away from the pipeline rotary connector 82, and the other end of the exhaust fan 85 is communicated with the odor washing tower 9 to further enhance the odor absorption and removal effect of the air suction pipe 84, and at the same time, the odor washing tower 9 can purify the odor and reduce the odor pollution.

When the primary sedimentation tank 1 works, sludge in sewage is precipitated to the bottom of the tank in the primary sedimentation tank 1, then the driving motor 16 is started, the rotating shaft 12 is driven by the rotation of the driving motor 16 to rotate, and the rotation of the rotating shaft 12 can drive the rotary sludge scraper 15 to stir the sludge at the bottom of the tank to discharge out of the primary sedimentation tank 1. The odor generated by the sewage is mostly confined between the primary sedimentation tank and the air-collecting hood 6. Simultaneously, the rotation of pivot 12 drives truss corridor 3 and blast pipe support 81 and rotates together, and then make breathing pipe 84 rotate with truss corridor 3 together, and the area that breathing pipe 84 gyration back is enclosed in vertical projection can cover 1 pool face in the primary sedimentation pond on a wider range, make each through-hole 841 of breathing pipe 84 can absorb the foul smell that primary sedimentation pond 1 distributed more fully, obtain more fully foul smell absorption and removal effect, open air exhauster 85 at this moment and carry out further deodorization with the foul smell suction in the foul smell scrubbing tower 9, thereby purify the foul smell, reduce the pollution of foul smell.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides an isolated device of foul smell of pond (1) is just sunk with sinking to sewage treatment, includes just sunk pond (1), the middle part of just sinking pond (1) is provided with a pivot (12), just sunk pond (1) is provided with gyration mud scraper (15), the central point of just sinking pond (1) puts and is provided with drive gyration mud scraper (15) and rotates driving motor (16), and the upside of gyration mud scraper (15) is provided with and can follows gyration mud scraper (15) together pivoted truss corridor (3), characterized by: a gas-collecting hood (6) is integrally covered between the truss gallery (3) and the primary sedimentation tank (1), and a plurality of steel frames (7) used for supporting the gas-collecting hood (6) are arranged above the gas-collecting hood (6).

2. The odor isolating device of a primary sedimentation tank (1) for sewage treatment according to claim 1, wherein: the gas collecting hood (6) is made of PVDF film material.

3. The odor isolating device of a primary sedimentation tank (1) for sewage treatment according to claim 1, wherein: and a sealing draped curtain (61) is arranged on the inner surface of the gas collecting hood (6) close to the inner peripheral wall of the primary sedimentation tank (1), and the lower edge of the sealing draped curtain (61) vertically extends into the water in the primary sedimentation tank (1).

4. The odor isolating device of a primary sedimentation tank (1) for sewage treatment according to claim 1, wherein: a plurality of steelframe (7) are latticed or radial along the even interval setting of the circumferencial direction of just sinking pond (1), the top at the peripheral pool wall of just sinking pond (1) is connected through gyro wheel (4) rollably to the one end of steelframe (7), the other end of steelframe (7) passes through support ring (2) interconnect, support ring (2) rigid coupling is at the top of pivot (12), the both ends of truss corridor (3) are connected at the top of the peripheral pool wall of just sinking pond (1) rollably through gyro wheel (4) respectively, truss corridor (3) are divided into two at the middle part by support ring (2), and truss corridor (3) and the lateral wall fixed connection of support ring (2), slide rail (5) of mutually supporting with gyro wheel (4) are seted up at the top of the peripheral pool wall of just sinking pond (1).

5. The odor isolating device of a primary sedimentation tank (1) for sewage treatment according to claim 1, wherein: the gas collecting hood (6) is hung on the steel frame (7) through a lifting rope (73).

6. The odor isolating device of a primary sedimentation tank (1) for sewage treatment according to claim 1, wherein: the upside of gas collecting channel (6) is provided with blast pipe (8), the lower extreme of blast pipe (8) is located primary sedimentation tank (1) central point puts the department, just the lower extreme of blast pipe (8) has a plurality of collecting pipes (83) through pipeline swivelling joint head (82) sealing connection, install on truss corridor (3) through tuber pipe support (81) pipeline swivelling joint head (82) and collecting pipe (83), the lower extreme of collecting pipe (83) is sealed run through extremely inside gas collecting channel (6).

7. The odor isolating device of a primary sedimentation tank (1) for sewage treatment according to claim 6, wherein: the collecting pipe (83) extends to the end part inside the gas collecting hood (6) and is hermetically connected with a gas suction pipe (84), the gas suction pipe (84) is a strip-shaped pipe extending along the radial direction of a primary sedimentation pipe, and a plurality of through holes (841) are uniformly formed in the circumferential surface of the gas suction pipe (84).

8. The odor isolating device of a primary sedimentation tank (1) for sewage treatment according to claim 7, wherein: one end of the exhaust pipe (8) departing from the pipeline rotating connector (82) is fixedly connected with an exhaust fan (85), and the other end of the exhaust fan (85) is communicated with an odor washing tower (9).