CN212403626U

CN212403626U - Aerobic carrier for domestic sewage treatment

Info

Publication number: CN212403626U
Application number: CN202020820227.1U
Authority: CN
Inventors: 唐晶; 徐道新; 任亮; 穆丹丹; 马建飞; 崔思远; 孙洪芹; 桑洪玉
Original assignee: Jiangsu Zhongche Environmental Protection Equipment Co ltd
Current assignee: Jiangsu Crrc Huateng Environmental Protection Technology Co ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-01-26
Anticipated expiration: 2030-05-15

Abstract

The utility model relates to the technical field of sewage treatment, in particular to an aerobic carrier for domestic sewage treatment. The aerobic carrier is a spherical framework structure formed by a first cylinder, a second cylinder, a third cylinder and plate-shaped connecting ribs, wherein the outer diameters of the first cylinder, the second cylinder and the third cylinder are sequentially increased. The spherical skeleton aerobic carrier with the special structure has large specific surface area, enhances the material exchange between the carrier and water, and improves the degradation rate of the carrier. Through the design of three-layer cylinder and many splice bars for the carrier all has good mechanical strength in axial and circumference.

Description

Aerobic carrier for domestic sewage treatment

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to an aerobic carrier for domestic sewage treatment.

Background

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be taken as an acknowledgement or any form of suggestion that this information constitutes prior art that is already known to a person skilled in the art.

The moving bed membrane bioreactor (MBBR) process is a high-efficiency water treatment process, has the characteristics of high volume load, compact structure and the like, and is widely applied to the field of sewage treatment. In the MBBR process, the bio-carrier for the attachment growth of microorganisms is one of the key technologies of the reactor, and its performance determines the efficiency of the water treatment process. The commonly used carriers include polyhedral hollow sphere carriers, hollow cylindrical carriers, suspension sphere carriers and the like, however, the research of the inventor finds that: the specific surface area of the carrier is small, and the treatment effect is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides an aerobic carrier for domestic sewage treatment. The aerobic biological carrier not only has good mechanical property and abrasion resistance, but also has excellent specific surface area and fluidization property, and can reduce energy consumption.

Specifically, in order to achieve the above object, the technical solution of the present invention is as follows:

the utility model provides an aerobic carrier for domestic sewage treatment, includes that the diameter increases in proper order and highly reduces in proper order first barrel, second barrel, third barrel, still includes first splice bar, second splice bar, third splice bar, the both ends of barrel are the opening form, the splice bar is platelike structure. The second barrel is located in the third barrel, and the first barrel is located in the second barrel. A first connecting rib is fixed on the inner wall of the first cylinder; the outer wall of the first cylinder body and the inner wall of the second cylinder body are fixedly connected together through a second connecting rib; the inner wall of the third cylinder body is fixedly connected with the outer wall of the second cylinder body through a third connecting rib, the connecting ribs are distributed along the diameter direction of the corresponding cylinder body, and the heights of the first connecting rib, the second connecting rib and the third connecting rib are sequentially reduced, so that the spherical framework aerobic carrier is formed.

In some embodiments of the present invention, the first connecting rib has a cross-shaped structure, and a cross center of the cross-shaped structure coincides with an axis of the first cylinder.

In some embodiments of the present invention, the number of the second connecting ribs is greater than the number of the first connecting ribs. Preferably 2 to 3: and 1, if the number of the second connecting ribs is 12 or 8, the number of the first connecting ribs is 4.

In some embodiments of the present invention, the number of the third connecting ribs is greater than the number of the second connecting ribs, preferably 4: 2-3, for example, the number of the third connecting ribs is 16, and the number of the second connecting ribs is 12 or 8.

In some embodiments of the present invention, the height ratio of the first cylinder, the second cylinder and the third cylinder is 50-54mm in sequence: 35-40 mm: 8-10 mm.

In some embodiments of the present invention, the diameter of the spherical skeleton aerobic carrier is 50-60mm, which is the same as the outer diameter of the third cylinder, the outer diameter of the second cylinder is 30-40mm, and the outer diameter of the first cylinder is 20-15 mm.

In some embodiments of the present invention, the first cylinder, the second cylinder and the third cylinder are concentrically disposed.

In some embodiments of the present invention, the connecting ribs are uniformly distributed along the circumferential direction of the spherical skeleton aerobic carrier.

In some embodiments of the utility model, the material of first barrel, second barrel, third barrel, first splice bar, second splice bar, third splice bar is polypropylene, and the density of this kind of material is low, and the quality is light, and the good oxygen carrier of spherical skeleton that is convenient for prepare just can reach fluidization state under less aeration rate, reduces the energy consumption.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the spherical skeleton aerobic carrier with the special structure has large specific surface area, enhances the material exchange between the carrier and water, and improves the degradation rate of the carrier.

(2) The spherical skeleton aerobic carrier with the special structure has good fluidization performance. Can reach the fluidization state under a smaller aeration quantity, and reduces the energy consumption. This is because the structural design of the many muscle of carrier, and whole be spherical, and during the aeration, more ascending bubbles can be caught to the muscle structure of carrier to make the carrier rotatory in aqueous, the utility model discloses the energy that the carrier can make full use of aeration production reaches the fluidization state more easily.

(3) The aerobic carrier of the utility model is designed with three layers of cylinders and a plurality of connecting ribs, so that the carrier has good mechanical strength in the axial direction and the circumferential direction.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of an aerobic carrier for domestic sewage treatment in an embodiment of the present invention, in which 1 denotes a first cylinder, 2 denotes a second cylinder, 3 denotes a second cylinder, 4 denotes a first connecting rib, 5 denotes a second connecting rib, and 6 denotes a third connecting rib.

Detailed Description

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

For convenience of description, the words "upper", "lower", "left" and "right" in the present application, if any, merely indicate that the device or element referred to in the present application is constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention, since they are merely intended to be oriented in the upper, lower, left and right directions of the drawings themselves, and not to limit the structure, but merely to facilitate the description of the invention and to simplify the description.

Term interpretation section: the terms "mounted," "connected," "fixed," and the like in the present invention are to be understood in a broad sense, for example, they may be fixedly connected, detachably connected, or integrated; the two components can be connected mechanically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and those skilled in the art can understand the specific meaning of the above terms in the present invention according to specific situations.

As mentioned above, the carriers used in the prior art include polyhedral hollow sphere carriers, hollow cylinder carriers, suspension sphere carriers, etc., but the specific surface area of the carriers is small, which affects the treatment effect. Therefore, the utility model provides an aerobic carrier for domestic sewage treatment. The invention will now be further described with reference to the drawings and the detailed description.

Referring to fig. 1, an aerobic carrier for domestic sewage treatment comprises a first cylinder body 1, a second cylinder body 2 and a third cylinder body 3, wherein the diameters of the first cylinder body 1, the second cylinder body 2 and the third cylinder body 3 are sequentially increased and the heights of the first cylinder body, the second cylinder body and the third cylinder body are sequentially decreased, and further comprises a first connecting rib 4, a second connecting rib 5 and a third connecting rib 6; both ends of the cylinder are open, and the connecting ribs are of plate-shaped structures.

For the first cylinder 1, the outer diameter is 20mm, the height is 54mm, the cross-shaped connecting ribs formed by four first connecting ribs 4 are fixed on the inner wall of the first cylinder, and the cross center of the cross-shaped connecting ribs coincides with the axis of the first cylinder.

For the second cylinder 2, the outer diameter is 40mm, the height is 40mm, and the outer wall of the first cylinder and the inner wall of the second cylinder are fixedly connected together through 12 second connecting ribs 5.

For the third cylinder 3, the outer diameter is 60mm, the height is 10mm, and the inner wall of the third cylinder 3 and the outer wall of the second cylinder are fixedly connected together through 16 third connecting ribs 6; the first cylinder, the second cylinder and the third cylinder are concentrically arranged, and the connecting ribs 4 are uniformly distributed along the circumferential direction of the spherical skeleton aerobic carrier.

The connecting ribs are distributed along the diameter direction of the corresponding cylinder body, and the height and the outer diameter of the first cylinder body, the second cylinder body and the third cylinder body 3 are sequentially reduced, so that the spherical skeleton aerobic carrier is formed.

In other embodiments, the third cylinder has an outer diameter of 50mm, the second cylinder has an outer diameter of 30mm, and the third cylinder has an outer diameter of 15 mm. The height of first barrel is 50mm, and the height of second barrel is 35mm, and the height of third barrel is 8 mm. The splice bar between first barrel and the second barrel is 8, and the splice bar in the first barrel is 4. 16 connecting ribs are arranged between the second cylinder and the third cylinder.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An aerobic carrier for domestic sewage treatment, which is characterized by comprising:

the first connecting rib, the second connecting rib and the third connecting rib are plate-shaped;

the device comprises a first cylinder, a second cylinder and a third cylinder, wherein the diameters of the first cylinder, the second cylinder and the third cylinder are sequentially increased, the heights of the first cylinder, the second cylinder and the third cylinder are sequentially decreased, and two ends of each cylinder are open;

the second cylinder body is positioned in the third cylinder body, and the first cylinder body is positioned in the second cylinder body;

a first connecting rib is fixed on the inner wall of the first cylinder; the outer wall of the first cylinder body and the inner wall of the second cylinder body are fixedly connected together through a second connecting rib; the inner wall of the third cylinder body is fixedly connected with the outer wall of the second cylinder body through a third connecting rib; the connecting ribs are distributed along the diameter direction of the corresponding cylinder;

the heights of the first connecting rib, the second connecting rib and the third connecting rib are sequentially reduced to form the spherical skeleton aerobic carrier.

2. The aerobic carrier for treating domestic sewage according to claim 1, wherein the first connecting rib has a cross-shaped structure, and the cross center of the cross-shaped structure coincides with the axial center of the first cylinder.

3. The aerobic carrier for treating domestic sewage according to claim 1, wherein the number of the second connecting ribs is larger than that of the first connecting ribs.

4. The aerobic carrier for treating domestic sewage according to claim 3, wherein the number of the third connecting ribs is greater than the number of the second connecting ribs.

5. The aerobic carrier for treating domestic sewage according to claim 4, wherein the number ratio of the first connecting rib to the second connecting rib to the third connecting rib is 1: 2-3: 4.

6. the aerobic carrier for treating domestic sewage according to claim 1, wherein the height ratio of the first cylinder, the second cylinder and the third cylinder 3 is 50-54mm in sequence: 35-40 mm: 8-10 mm.

7. The aerobic carrier for treating domestic sewage according to claim 1, wherein the diameter of the spherical skeleton aerobic carrier is the same as the outer diameter of the third cylinder body, and is 50-60mm, the outer diameter of the second cylinder body is 30-40mm, and the outer diameter of the first cylinder body is 20-15 mm.

8. The aerobic carrier for treating domestic sewage according to claim 1, wherein the first cylinder, the second cylinder and the third cylinder are concentrically arranged.

9. The aerobic carrier for domestic sewage treatment according to claim 1, wherein the connecting ribs are uniformly distributed along the circumferential direction of the spherical skeleton aerobic carrier.

10. The aerobic carrier for treatment of domestic sewage according to any of the claims 1 to 9, wherein the material of the first cylinder, the second cylinder, the third cylinder, the first connecting rib, the second connecting rib and the third connecting rib is polypropylene.