CN216837535U

CN216837535U - Reflux device

Info

Publication number: CN216837535U
Application number: CN202121976805.1U
Authority: CN
Inventors: 李承朋; 黄定华
Original assignee: Haidelong Shanghai Environmental Protection Technology Co ltd
Current assignee: Haidelong Shanghai Environmental Protection Technology Co ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-06-28
Anticipated expiration: 2031-08-20

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a reflux device; promote axle and good oxygen pond sliding connection, and run through the spout, promote epaxial being provided with the connecting plate, the output and the connecting plate dismantlement of promotion subassembly are connected, be provided with filter frame in the axis of rotation, still be provided with driven tooth portion in the axis of rotation, rotating assembly's output is corresponding with driven tooth portion, start promoting the subassembly, it translates on the spout to drive the promotion axle through the connecting plate, and then utilize the debris in the mud that promotes the grid in will clearing up the district, push to filter frame, start rotating device, utilize driven tooth portion to drive the axis of rotation and rotate, and then drive the upset of filter frame, thereby make the debris in the mud float on the surface, and then the cleaing away of the debris of being convenient for.

Description

Reflux device

Technical Field

The utility model relates to a sewage treatment technical field especially relates to a reflux unit.

Background

The activated sludge process is a kind of biological treatment process which is essentially artificial reinforcement of the self-purification function of natural water body, and the complete activated sludge system comprises auxiliary facilities needed for realizing the functions of reflux, aeration and sludge disposal. As a process in the biochemical pool, the internal reflux of the sludge is a process of refluxing the activated sludge mixed liquor in the aerobic zone of the biochemical pool to the anoxic zone of the biochemical pool by using a reflux device so as to ensure the cyclic operation of the biochemical pool.

The existing reflux device partially utilizes a gas supply device to fill compressed gas into a lifting pipe through a gas inlet pipe, so that the compressed gas moves to a high place along the lifting pipe until an air escape port escapes, and an object to be lifted is moved into a reflux pipeline from a liquid inlet of the lifting pipe under the drive of the compressed gas and is transferred into an anaerobic tank through the reflux pipeline, thereby completing reflux.

However, in the use process of the existing air stripping type reflux device, the aerobic pool is usually arranged in the open air, so that garbage and impurities often exist in sludge, and when the sludge flows back through the lifting pipe, the lifting pipe is blocked by the impurities.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a reflux unit, current air lift formula reflux unit who solves among the prior art is in the use, and good oxygen pond all sets up in the open usually, leads to often having rubbish debris in the mud, when flowing back through the riser, debris can be with the problem of riser jam.

In order to realize the aim, the utility model provides a reflux device, which comprises an aerobic tank, an anaerobic tank, a riser, an air inlet pipe, a gas stripping box, a reflux pipeline, a filter grid and a cleaning device, the filtering grid is arranged in the aerobic tank and divides the aerobic tank into a cleaning area and a lifting area, the air stripping box is erected above the lifting area, one end of the return pipeline is connected with the air stripping box through a flange, the other end of the return pipeline corresponds to the anaerobic tank, a lifting port is arranged on the air lifting box, one end of the lifting pipe is connected with the lifting port flange, the other end of the lifting pipe is positioned in the lifting area, the air lifting box is also provided with an air inlet, one end of the air inlet pipe is connected with the air inlet flange, and the other end of the air inlet pipe is connected with the side wall flange of the lifting pipe;

the cleaning device is arranged in the cleaning area and comprises a pushing assembly, a connecting plate, a pushing shaft, a pushing grid, a filter frame, a rotating shaft and a rotating assembly, a chute is formed in the side wall of the aerobic tank, the pushing shaft is in sliding connection with the aerobic tank and penetrates through the chute, the pushing grid is arranged on one side of the pushing shaft, the connecting plate is arranged on the other side of the pushing shaft, the pushing assembly is arranged at one end, away from the air lifting box, of the aerobic tank, the output end of the pushing assembly is detachably connected with the connecting plate, a rotating groove is formed in one end, close to the filter grid, of the aerobic tank, the rotating shaft penetrates through the rotating groove, the filter frame is arranged on the rotating shaft, the filter frame is located in the aerobic tank, and a driven tooth part is further arranged on the rotating shaft, the side wall of the aerobic tank is also provided with a placing plate, the placing plate is provided with the rotating assembly, and the output end of the rotating assembly corresponds to the driven tooth part.

The pushing assembly is started, the connecting plate drives the pushing shaft to move on the sliding groove in a translating mode, the pushing grid is utilized to push sundries in sludge in the cleaning area to the filter frame, the rotating device is started, the driven tooth portion drives the rotating shaft to rotate, and then the filter frame is driven to overturn, so that the sundries in the sludge float on the surface, after the sundries are conveniently removed, the air inlet pipe supplies air to the air inlet pipe through the air supply device in the air lifting box, the air inlet pipe supplies air to the lifting pipe, compressed air is made to move to the high position along the lifting pipe, objects to be lifted are driven by the compressed air to move from the inlet of the lifting pipe to the backflow pipeline, and accordingly backflow of the sludge is achieved.

The pushing assembly comprises a first motor, a screw rod and a screw rod sleeve, the first motor is detachably connected with the aerobic tank, the screw rod is arranged at the output end of the first motor, the screw rod sleeve is arranged on the screw rod, and the screw rod sleeve is detachably connected with the connecting plate.

The first motor is started to drive the screw rod to rotate, so that the screw rod sleeve is driven to translate, and the pushing grids are driven by the connecting plate to push sundries in sludge to the filter frame.

The pushing assembly further comprises a support frame, two ends of the support frame are respectively detachably connected with the aerobic tank and are respectively located on two sides of the aerobic tank, the middle of the support frame is sleeved outside the screw rod and is located at one end, far away from the first motor, of the screw rod.

The lead screw is kept away from one end of the first motor is provided with the support frame, so that the lead screw plays a supporting role, and the situation that the lead screw is deformed due to the fact that the weight of the pushing grid is too heavy is avoided.

The support frame comprises two connecting blocks, two connecting rods and a fixing ring, the fixing ring is sleeved outside the screw rod, the two ends of the fixing ring are provided with the connecting rods, the connecting rods are far away from one end of the fixing ring and are provided with the connecting blocks, and the connecting blocks are all detachably connected with the aerobic tank.

Will gu fixed ring cover establishes the outside of lead screw utilizes the screw to fix two the connecting block is fixed on the inner wall of good oxygen pond, gu fixed ring with the connecting plate all with connecting rod fixed connection adopts the integrated into one piece technique to make during the manufacturing, and the structure is more firm.

The rotating assembly comprises a second motor, a gear reduction box and an output gear, the second motor is detachably connected with the placing plate, the gear reduction box is arranged at the output end of the second motor, the output gear is arranged at the output end of the gear reduction box, and the output gear is meshed with the driven tooth part.

And starting the second motor, and after the output rotating speed of the second motor is reduced by using the gear reduction box, driving the driven tooth part to rotate through the output gear, so that the filter frame is turned over, impurities in the sludge pass through the filter frame and float on the surface, and subsequent treatment is facilitated.

The number of the lifting ports and the number of the air inlets which are arranged on the air stripping box are multiple, the number of the lifting pipes is multiple, the number of the air inlet pipes is multiple, each lifting pipe corresponds to one lifting port, and each air inlet pipe corresponds to one air inlet.

The number of the lifting pipes and the number of the air inlet pipes are both multiple, so that the sludge backflow efficiency of the backflow device is improved.

The outside of the first motor and the second motor is provided with motor protection covers, and each motor protection cover is detachably connected with the corresponding aerobic tank and the placing plate respectively.

The motor protection covers are arranged outside the first motor and the second motor, so that the motors are protected from the hardness of the external environment, and the service lives of the first motor and the second motor are prolonged.

Each lifting pipe is located the aerobic tank and is arranged in a round platform structure, and one end, located the aerobic tank, of each lifting pipe is provided with a filter screen.

Every the riser is located the one end in good oxygen pond all is the round platform structure setting, has enlarged the area of contact of riser with mud, thereby makes reflux unit's backward flow efficiency is faster, the port department of riser is provided with the filter screen to further filter the tiny impurity in the mud, thereby further avoid the riser blocks up.

The utility model relates to a reflux unit, the pushing shaft is connected with the aerobic tank in a sliding way and runs through the chute, the connecting plate is arranged on the pushing shaft, the output end of the pushing component is connected with the connecting plate in a dismounting way, the filter frame is arranged on the rotating shaft, the driven tooth part is also arranged on the rotating shaft, the output end of the rotating component corresponds to the driven tooth part, the pushing component is started, the pushing shaft is driven by the connecting plate to translate on the chute, the pushing grid is further utilized to push sundries in the sludge in the cleaning area to the filter frame, the rotating device is started, the driven tooth part is utilized to drive the rotating shaft to rotate, and further the filter frame is driven to turn over, so that the sundries in the sludge float on the surface, after the sundries are cleaned, when the air supply device in the air lifting box is used for supplying air, the air inlet pipe is utilized to charge compressed air into the lifting pipe, so that the compressed air moves to a high position along the lifting pipe, and objects to be lifted move to the backflow pipeline from the liquid inlet of the lifting pipe under the drive of the compressed air, so that the backflow of sludge is completed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a structural diagram of a reflow apparatus provided by the present invention.

Figure 2 is a side view of the aerobic tank provided by the utility model.

Fig. 3 is a cross-sectional view of the internal structure taken along line a-a of fig. 2 according to the present invention.

Fig. 4 is a schematic structural diagram of the cleaning device provided by the present invention.

Fig. 5 is a schematic view of a connection structure of a riser and an intake pipe provided by the present invention.

1-aerobic tank, 11-cleaning zone, 12-lifting zone, 13-placing plate, 2-anaerobic tank, 3-lifting pipe, 31-filter screen, 4-air inlet pipe, 5-air lifting box, 51-lifting port, 52-air inlet, 6-return pipeline, 7-filter grid, 8-cleaning device, 81-pushing assembly, 811-first motor, 812-screw rod, 813-screw rod sleeve, 814-supporting frame, 815-connecting block, 816-connecting rod, 817-fixing ring, 82-connecting plate, 83-pushing shaft, 84-pushing grid, 85-filter frame, 86-rotating shaft, 861-driven tooth part, 87-rotating assembly, 871-second motor, 872-gear reduction box, gear reduction box, 873-output gear, 88-chute, 89-rotation groove, and 9-motor protective cover.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to 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 those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 5, the present invention provides a reflux device, which comprises an aerobic tank 1, an anaerobic tank 2, a riser 3, an air inlet pipe 4, a gas stripping tank 5, a reflux pipeline 6, a filter grid 7 and a cleaning device 8, wherein the filter grid 7 is arranged inside the aerobic tank 1, the filter grid 7 divides the aerobic tank 1 into a cleaning area 11 and a lifting area 12, the gas stripping tank 5 is erected above the lifting area 12, one end of the reflux pipeline 6 is connected with the gas stripping tank 5 by a flange, the other end of the reflux pipeline 6 corresponds to the anaerobic tank 2, the gas stripping tank 5 is provided with a lifting port 51, one end of the riser 3 is connected with the lifting port 51 by a flange, the other end of the riser 3 is located in the lifting area 12, the gas stripping tank 5 is further provided with an air inlet 52, one end of the air inlet pipe 4 is connected with the air inlet 52 by a flange, the other end of the air inlet pipe 4 is connected with a side wall flange of the lifting pipe 3;

the cleaning device 8 is arranged in the cleaning area 11, the cleaning device 8 comprises a pushing assembly 81, a connecting plate 82, a pushing shaft 83, a pushing grid 84, a filtering frame 85, a rotating shaft 86 and a rotating assembly 87, a sliding groove 88 is arranged on the side wall of the aerobic tank 1, the pushing shaft 83 is in sliding connection with the aerobic tank 1 and penetrates through the sliding groove 88, the pushing grid 84 is arranged on one side of the pushing shaft 83, the connecting plate 82 is arranged on the other side of the pushing shaft 83, the pushing assembly 81 is arranged at one end, far away from the air lifting box 5, of the aerobic tank 1, the output end of the pushing assembly 81 is detachably connected with the connecting plate 82, a rotating groove 89 is arranged at one end, close to the filtering grid 7, of the aerobic tank 1, the rotating shaft 86 penetrates through the rotating groove 89, and the filtering frame 85 is arranged on the rotating shaft 86, the filter frame 85 is located inside the aerobic tank 1, the rotating shaft 86 is further provided with a driven tooth portion 861, the side wall of the aerobic tank 1 is further provided with a placing plate 13, the placing plate 13 is provided with the rotating assembly 87, and the output end of the rotating assembly 87 corresponds to the driven tooth portion 861.

In the present embodiment, the pushing assembly 81 is activated, the pushing shaft 83 is driven by the connecting plate 82 to translate on the sliding slot 88, then the pushing grid 84 pushes the impurities in the sludge in the cleaning area 11 to the filter frame 85, the rotating device is started, the driven tooth part 861 drives the rotating shaft 86 to rotate, thereby driving the filter frame 85 to turn over, so that the impurities in the sludge float on the surface, after the impurities are conveniently removed, when the gas supply device in the gas stripping box 5 supplies gas to the gas inlet pipe 4, the gas inlet pipe 4 is utilized to charge compressed gas into the lifting pipe 3, compressed gas moves to a high position along the lifting pipe 3, and the object to be lifted is driven by the compressed gas to move to the backflow pipeline 6 from the liquid inlet of the lifting pipe 3, so that the backflow of sludge is completed.

Further, the pushing assembly 81 comprises a first motor 811, a screw 812 and a screw sleeve 813, the first motor 811 is detachably connected with the aerobic tank 1, the screw 812 is arranged at the output end of the first motor 811, the screw sleeve 813 is arranged on the screw 812, and the screw sleeve 813 is detachably connected with the connecting plate 82.

In this embodiment, the first motor 811 is started to drive the screw 812 to rotate, so as to drive the screw sleeve 813 to translate, and further drive the pushing grid 84 to push impurities in sludge towards the filter frame 85 through the connecting plate 82.

Further, promote subassembly 81 and still include support frame 814, the both ends of support frame 814 respectively with good oxygen pond 1 is dismantled and is connected, and is located respectively good oxygen pond 1's both sides, the middle part cover of support frame 814 is established the outside of lead screw 812, and is located lead screw 812 keeps away from the one end of first motor 811, support frame 814 includes two connecting blocks 815, two connecting rods 816 and solid fixed ring 817, gu fixed ring 817 establishes the outside of lead screw 812, gu fixed ring 817's both ends all are provided with connecting rod 816, every connecting rod 816 is kept away from gu fixed ring 817's one end all is provided with connecting block 815, every connecting block 815 all with good oxygen pond 1 is dismantled and is connected.

In this embodiment, lead screw 812 is kept away from the one end setting of first motor 811 support frame 814, thereby it is right lead screw 812 plays a supporting role, avoids the weight that promotes grid 84 is overweight, leads to lead screw 812 takes place deformation, will gu fixed ring 817 cover is established the outside of lead screw 812 utilizes the screw to fix two connecting block 815 is fixed on the inner wall of aerobic tank 1, gu fixed ring 817 with connecting plate 82 all with connecting rod 816 fixed connection adopts the integrated into one piece technique to make during the manufacturing, and the structure is more firm.

Further, the rotating assembly 87 comprises a second motor 871, a gear reducer 872 and an output gear 873, the second motor 871 is detachably connected with the placing plate 13, the gear reducer 872 is arranged at the output end of the second motor 871, the output gear 873 is arranged at the output end of the gear reducer 872, and the output gear 873 is meshed with the driven gear portion 861.

In this embodiment, the second motor 871 is started, and after the output rotation speed of the second motor 871 is reduced by the gear reducer 872, the driven gear portion 861 is driven by the output gear 873 to turn over the filter frame 85, so that impurities in the sludge pass through the filter frame 85 and float on the surface, thereby facilitating subsequent treatment.

Furthermore, the number of the lifting ports 51 and the number of the air inlets 52 which are arranged on the gas stripping box 5 are multiple, the number of the lifting pipes 3 is multiple, the number of the air inlet pipes 4 is multiple, each lifting pipe 3 corresponds to one lifting port 51, and each air inlet pipe 4 corresponds to one air inlet 52.

In the present embodiment, the number of the riser pipes 3 and the number of the intake pipes 4 are both plural, so that the sludge return efficiency of the return device is improved.

Further, motor protection covers 9 are arranged outside the first motor 811 and the second motor 871, and each motor protection cover 9 is detachably connected with the corresponding aerobic tank 1 and the corresponding placing plate 13.

In this embodiment, the motor protective cover 9 is provided outside the first motor 811 and the second motor 871, so that the motors are protected from the external environment, and the service lives of the first motor 811 and the second motor 871 are prolonged.

Furthermore, each lifting pipe 3 is located the aerobic tank 1 is arranged in a round table structure, and one end of each lifting pipe 3 located the aerobic tank 1 is provided with a filter screen 31.

In this embodiment, every riser 3 is located the one end in good oxygen pond 1 all is the setting of round platform structure, has enlarged the area of contact of riser 3 with mud, thereby makes reflux unit's backward flow efficiency is faster, the port department of riser 3 is provided with filter screen 31 to further filter the tiny impurity in the mud, thereby further avoid riser 3 blocks up.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. A reflux unit is characterized in that a reflux unit is arranged in the reflux unit,

the backflow device comprises an aerobic pool, an anaerobic pool, a lifting pipe, an air inlet pipe, an air lifting box, a backflow pipeline, a filtering grid and a cleaning device, wherein the filtering grid is arranged in the aerobic pool, the filtering grid divides the aerobic pool into a cleaning area and a lifting area, the air lifting box is erected above the lifting area, one end of the backflow pipeline is connected with the air lifting box through a flange, the other end of the backflow pipeline corresponds to the anaerobic pool, a lifting port is formed in the air lifting box, one end of the lifting pipe is connected with the lifting port through a flange, the other end of the lifting pipe is located in the lifting area, an air inlet is further formed in the air lifting box, one end of the air inlet pipe is connected with the air inlet through a flange, and the other end of the air inlet pipe is connected with a flange on the side wall of the lifting pipe;

2. The reflow apparatus of claim 1,

the pushing assembly comprises a first motor, a screw rod and a screw rod sleeve, the first motor is detachably connected with the aerobic tank, the output end of the first motor is provided with the screw rod, the screw rod sleeve is arranged on the screw rod, and the screw rod sleeve is detachably connected with the connecting plate.

3. Reflow apparatus in accordance with claim 2,

the pushing assembly further comprises a support frame, the two ends of the support frame are respectively detachably connected with the aerobic tank and are respectively located on the two sides of the aerobic tank, the middle of the support frame is sleeved outside the screw rod and is located at one end, far away from the first motor, of the screw rod.

4. Reflow apparatus in accordance with claim 3,

the support frame includes two connecting blocks, two connecting rods and solid fixed ring, gu fixed ring cover is established the outside of lead screw, gu fixed ring's both ends all are provided with the connecting rod, every the connecting rod is kept away from gu fixed ring's one end all is provided with the connecting block, every the connecting block all with good oxygen pond dismantlement is connected.

5. Reflow apparatus in accordance with claim 2,

6. The reflow apparatus of claim 1,

the number of the lifting ports and the number of the air inlets which are arranged on the air lifting box are multiple, the number of the lifting pipes is multiple, the number of the air inlet pipes is multiple, each lifting pipe corresponds to one lifting port, and each air inlet pipe corresponds to one air inlet.

7. The reflow apparatus of claim 5,

motor protective covers are arranged outside the first motor and the second motor, and each motor protective cover is respectively detachably connected with the corresponding aerobic tank and the corresponding placing plate.

8. Reflow apparatus in accordance with claim 6,

each lifting pipe is located the aerobic tank all is the round platform structure setting, every the lifting pipe is located the one end in aerobic tank all is provided with the filter screen.