CN212222552U

CN212222552U - Pneumatic biological rotating disc for rural domestic sewage treatment

Info

Publication number: CN212222552U
Application number: CN202020737336.7U
Authority: CN
Inventors: 陈瑶; 陈洪华
Original assignee: Jiangsu Yixing Xingchen Environment Engineering Co ltd
Current assignee: Jiangsu Yixing Xingchen Environment Engineering Co ltd
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2020-12-25
Anticipated expiration: 2030-05-07

Abstract

The utility model discloses a pneumatic biological rotating disc for rural domestic sewage treatment, which relates to the technical field of wastewater treatment, and comprises an impact plate, a three-dimensional concave-convex filler, a micropore aeration diffuser and the like, wherein when the biological rotating disc is used, an aeration device aerates in sewage and releases a large amount of air, and the air ensures that dissolved oxygen in a biological treatment tank is in a high-oxygen state on one hand, thereby reducing biochemical time, leading the filler device to be easier to form a biological membrane, being beneficial to purifying the sewage by the biological membrane and having higher removal rate of C0D and nitrogen and phosphorus; on the other hand, because the air is also collided with the impact plate when being released, the air generates impact force on the impact plate, thereby driving the whole filling device to rotate uniformly, greatly reducing the energy consumption required by the rotation of the filling device and further improving the treatment efficiency of the wastewater.

Description

Pneumatic biological rotating disc for rural domestic sewage treatment

Technical Field

The utility model relates to the technical field of wastewater treatment, in particular to a pneumatic biological rotating disc for rural domestic sewage treatment.

Background

At present, the process method for treating domestic sewage in cities and towns and rural areas has been researched and applied for many years, and has a better effect. The existing processing method mainly comprises the following steps: biochemical and physicochemical methods, biochemical treatment methods have been widely used in the treatment of domestic sewage in cities and towns and rural areas. In rural areas of China, a large amount of scattered culture wastewater, domestic sewage and non-point source pollution enter surface water bodies, and great threat is formed to water environment.

The biological rotating disc method is used as one kind of biological sewage treating technology with biological film method, and is used in artificial strengthening of sewage irrigation and land treatment. Conventional bio-discs typically consist of a treatment basin and a rotating disc that is partially submerged in the wastewater. The microbial film growing on the surface of the rotating disk repeatedly contacts with the sewage in the biological tank and oxygen in the air, and the microbial film purifies the sewage through metabolism.

Most of the existing biological rotating discs are separately provided with a driving motor, and need to be driven to rotate by the driving motor, so that certain electric energy needs to be consumed, the whole biological rotating discs only treat wastewater through microbial films generated on the surfaces of the whole biological rotating discs, the purification effect is limited, and the treatment efficiency of the whole biological rotating discs on the wastewater is lower.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the treatment efficiency of the existing biological rotating disc to waste water is lower.

In order to solve the technical problem, the utility model provides a pneumatic biological rotating disk is used in rural domestic sewage treatment, including biological treatment pond and the protection housing that is used for holding sewage, rotate in the biological treatment pond and be connected with the filler device that is used for inconsistent with sewage, filler device's surface interval is fixed with the kickboard of a plurality of radial settings, the kickboard sets up along filler device's circumferencial direction equidistant interval, still is provided with the aeration equipment who is used for releasing gas in sewage in the biological treatment pond, the air that aeration equipment released strikes the kickboard simultaneously.

The technical effects are as follows: when the biological rotating disc is used, the aeration device aerates in sewage and releases a large amount of air, and the air ensures that the dissolved oxygen in the biological treatment tank is in a high-oxygen state, so that the biochemical time is reduced, a biological film is more easily formed on the filling device, the biological film is favorable for purifying the sewage, and the biological rotating disc has higher removal rate of C0D and nitrogen and phosphorus; on the other hand, because the air is also collided with the impact plate when being released, the air generates impact force on the impact plate, thereby driving the whole filling device to rotate uniformly, greatly reducing the energy consumption required by the rotation of the filling device and further improving the treatment efficiency of the wastewater.

The utility model discloses the technical scheme who further injects is: the biological treatment tank is symmetrically provided with bearings for the filler device to rotate along the two ends of the biological treatment tank in the length direction.

Further, the filler device is equipped with the pivot including setting up to columniform filler mount, the inside of filler mount along self center pin direction, and the pivot rotates simultaneously to be connected between two bearings, still is fixed with the three-dimensional unsmooth filler that is used for forming the biomembrane on the filler mount.

The pneumatic biological rotating disk for treating the rural domestic sewage is characterized in that the impact plates are arranged into three groups along the length direction of the filler fixing frame, the two groups of the impact plates are respectively arranged at the end part of the filler fixing frame, the other group of the impact plates are arranged at the central position of the filler fixing frame, and the impact plates in each group are arranged at equal intervals along the circumferential direction of the filler fixing frame.

The aeration device comprises a blower and a plurality of microporous aeration diffusers arranged in the biological treatment tank, and the blower is provided with air pipes for simultaneously connecting all the microporous aeration diffusers.

The pneumatic biological rotating disk for treating the rural domestic sewage is characterized in that the microporous aeration diffusers are arranged at equal intervals along the length direction of the biological treatment tank.

The pneumatic biological rotating disk for treating rural domestic sewage is characterized in that the three-dimensional concave-convex filler is HDPE biological filler.

The utility model has the advantages that:

(1) the utility model, the arrangement of the bearing and the rotating shaft, the whole filling device can be more conveniently arranged in the biological treatment tank, and the whole filling device can be semi-immersed in sewage, and the filling device can stably and smoothly rotate along the self circumferential direction, thereby being beneficial to the formation of a biological film; the setting of filler mount provides convenient mounted position for three-dimensional unsmooth filler for the biomembrane can remain stable after forming, is difficult for being destroyed.

(2) The utility model discloses, the quantity of impingement plate and the setting of position make the air that aeration equipment released more easily contradict with the impingement plate, and contradict with a plurality of impingement plates simultaneously, thus strengthened the impact strength of air to the impingement plate, also make the impingement plate drive the effect better to whole packing device, thus make the whole biological rotating disc to the treatment effeciency of waste water higher;

(3) the utility model discloses, three leaf roots's fan is because the structural characteristic of self for the impeller of whole air-blower is even in the clearance after the equipment, and the volume efficiency can promote by a wide margin, has also slowed down high-pressure gas's backward flow simultaneously and has strikeed, the effectual fan noise that has reduced, makes self safe and reliable more when the operation.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Wherein: 1. a biological treatment tank; 11. a bearing; 2. a protective housing; 3. a packing device; 31. an impact plate; 32. a filler fixing frame; 33. a rotating shaft; 34. a three-dimensional concave-convex filler; 4. an aeration device; 41. a blower; 42. a microporous aeration diffuser; 43. and (7) an air pipe.

Detailed Description

The pneumatic biological rotating disk for treating rural domestic sewage provided by the embodiment has a structure as shown in fig. 1, and comprises a biological treatment pool 1 for containing sewage, wherein a protective housing 2 is arranged above the biological treatment pool 1, and two ends of the biological treatment pool 1 along the length direction are symmetrically provided with bearings 11 for a filler device 3 to rotate.

The inside of biological treatment pond 1 rotates and is connected with filler device 3, filler device 3 also contradicts with the sewage in the biological treatment department simultaneously, filler device 3 is including filler mount 32, pivot 33 and three-dimensional unsmooth filler 34, filler mount 32 sets up to cylindrically, pivot 33 sets up in the inside position department along self center pin direction of filler mount 32, pivot 33 also rotates simultaneously and connects between two bearings 11, three-dimensional unsmooth filler 34 is used for forming the biomembrane, and be fixed in on the filler mount 32, three-dimensional unsmooth filler 34 sets up to the HDPE biofilm carrier.

The packing device 3 further comprises a plurality of impact plates 31 arranged on the outer surface of the packing device, the impact plates 31 are arranged along the diameter direction of the packing fixing frame 32, and the impact plates 31 are arranged at equal intervals along the circumferential direction of the packing device 3. The impact plates 31 are arranged into three groups along the length direction of the filler fixing frame 32, two groups of the impact plates are respectively arranged at the end part of the filler fixing frame 32, the other group of the impact plates is arranged at the central position of the filler fixing frame 32, and the impact plates 31 in each group are arranged at equal intervals along the circumferential direction of the filler fixing frame 32.

The interior of the biological treatment tank 1 is also provided with an aeration device 4, and the aeration device 4 is used for releasing air in the sewage, and the released air simultaneously impacts the impact plate 31. The aeration device 4 comprises a blower 41, an air pipe 43 and a plurality of microporous aeration diffusers 42 which are connected with each other, the blower 41 is a three-blade Roots blower, the microporous aeration diffusers 42 are all arranged in the biological treatment tank 1 and are arranged at equal intervals along the length direction of the biological treatment tank 1, and the air pipe 43 is arranged between the blower 41 and all the microporous aeration diffusers 42.

When the biological rotating disc is used, the aeration device 4 aerates the sewage and releases a large amount of air, and the air ensures that the dissolved oxygen in the biological treatment tank 1 is in a high-oxygen state, so that the biochemical time is reduced, a biological film is more easily formed on the filling device 3, the biological film is favorable for purifying the sewage, and the biological rotating disc has high removal rate of C0D and nitrogen and phosphorus; on the other hand, because the air is also inconsistent with the impact plate 31 when released, the air generates impact force on the impact plate 31, thereby driving the whole filling device 3 to rotate uniformly, greatly reducing the energy consumption required by the rotation of the filling device 3 and further improving the treatment efficiency of the wastewater.

The air diffuses out from the aerator, generates vertical upward buoyancy, reduces the bending deformation generated by the self weight of the disc and the biological membrane, has small rotation noise and high operation stability of the biological rotating disc, effectively prolongs the service life of equipment, and reduces the maintenance cost of the equipment.

In addition to the above embodiments, the present invention may have other embodiments; all the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. The utility model provides a rural domestic sewage is pneumatic biological rotating disk for treatment, is including biological treatment pond (1) and protection housing (2) that are used for holding sewage, its characterized in that: the sewage treatment device is characterized in that a filler device (3) which is inconsistent with sewage is rotationally connected in the biological treatment tank (1), a plurality of impact plates (31) which are radially arranged are fixed on the outer surface of the filler device (3) at intervals, the impact plates (31) are arranged at intervals along the circumferential direction of the filler device (3), an aeration device (4) which is used for releasing air in the sewage is further arranged in the biological treatment tank (1), and the air released by the aeration device (4) impacts the impact plates (31) simultaneously.

2. The pneumatic biological rotating disk for rural domestic sewage treatment according to claim 1, characterized in that: and bearings (11) for rotating the filling device (3) are symmetrically arranged at two ends of the biological treatment tank (1) along the length direction of the biological treatment tank.

3. The pneumatic biological rotating disk for rural domestic sewage treatment according to claim 2, characterized in that: the filling device (3) comprises a cylindrical filling fixing frame (32), a rotating shaft (33) is arranged in the filling fixing frame (32) along the direction of a self central shaft, the rotating shaft (33) is simultaneously and rotatably connected between the two bearings (11), and a three-dimensional concave-convex filling material (34) for forming a biological film is further fixed on the filling fixing frame (32).

4. The pneumatic biological rotating disk for rural domestic sewage treatment according to claim 1, characterized in that: the impact plates (31) are arranged into three groups along the length direction of the filler fixing frame (32), two groups of the impact plates are respectively arranged at the end part of the filler fixing frame (32), the other group of the impact plates is arranged at the central position of the filler fixing frame (32), and the impact plates (31) in each group are arranged at equal intervals along the circumferential direction of the filler fixing frame (32).

5. The pneumatic biological rotating disk for rural domestic sewage treatment according to claim 1, characterized in that: the aeration device (4) comprises a blower (41) and a plurality of microporous aeration diffusers (42) arranged in the biological treatment tank (1), wherein the blower (41) is provided with an air pipe (43) which is used for being connected with all the microporous aeration diffusers (42) simultaneously.

6. The pneumatic biological rotating disk for rural domestic sewage treatment according to claim 5, characterized in that: the microporous aeration diffusers (42) are arranged at equal intervals along the length direction of the biological treatment tank (1).

7. The pneumatic biological rotating disk for rural domestic sewage treatment according to claim 3, characterized in that: the three-dimensional concave-convex filler (34) is set as HDPE biological filler.

8. The pneumatic biological rotating disk for rural domestic sewage treatment according to claim 5, characterized in that: the blower (41) is set to be a three-blade Roots blower.