CN216584382U

CN216584382U - Disc type air-water distribution filter brick for filter tank system

Info

Publication number: CN216584382U
Application number: CN202122988972.4U
Authority: CN
Inventors: 司大伟; 陈悦; 谢启凡
Original assignee: Davoco Environmental Protection Shanghai Co ltd
Current assignee: Davoco Environmental Protection Shanghai Co ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-05-24
Anticipated expiration: 2031-12-01

Abstract

The utility model discloses a disc type air-water distribution filter brick for a filter tank system, which comprises a filter brick body, wherein the filter brick body is formed by splicing at least two monomers, each monomer is provided with a packing cavity, and a linear air-water distribution air distribution gap is arranged between every two adjacent monomers; four sides of the top surface of the single body are provided with inclined planes, two opposite inclined planes form a V-shaped structure, and convex hemispheres are arranged at the intersection of every two inclined planes; the first side surface to the fourth side surface of the filter brick body are provided with a buckle interlocking structure and a positioning bulge; the lower part of the buckle interlocking structure is provided with a positioning convex hemisphere and a positioning concave hemisphere; the lower parts of the first side surface, the third side surface and the side surface of each single body parallel to the first side surface or the third side surface of the filter brick body are provided with an A-shaped opening, supporting legs and side legs, the lower parts of the second side surface and the fourth side surface are provided with an inverted U-shaped reflecting cavity, and the A-shaped opening is communicated with the inverted U-shaped reflecting cavity. The utility model can avoid the filter bricks from turning over, and can form a net-shaped water and gas distribution system at the bottom of the filter tank, so that the water and gas distribution is more uniform.

Description

Disc type air-water distribution filter brick for filter tank system

Technical Field

The utility model belongs to the technical field of water treatment and biological filter, and relates to a disc type air-water distribution filter brick for a filter system.

Background

The water treatment process mainly comprises an activated sludge process and a biological membrane process, wherein a biological filter in the biological membrane process is divided into an anaerobic biological filter, an anoxic biological filter and an aeration biological filter, and compared with the activated sludge process, the biological filter process has the advantages of good water treatment quality, strong impact load resistance, small occupied area, low operation cost, simple and convenient maintenance and management and the like, wherein the denitrification deep-bed filter is a biological filter integrating biological denitrification and filtration functions, and the filtration method of sewage is a common advanced sewage treatment process for upgrading and deep treatment of a sewage plant at present.

In the working process of the filter, the backwashing stage is particularly important, on one hand, backwashing is required to remove the aged biological membranes on the surface of the filter materials, and on the other hand, the backwashing process is also ensured not to be too violent so as to prevent the newly generated biological membranes from completely falling off. Therefore, the uniformity of backwashing is particularly important for improving the water purification effect, and furthermore, the key of uniform backwashing is to lay filter bricks with the air-water distribution function at the bottom of the filter tank.

At present, the bottom of the biological filter adopts a traditional filter plate and long-handle filter head mode, belongs to point source water and gas distribution, and is easy to block after running for a period of time, so that hardening is generated between filter materials, and sand leakage occurs, thereby affecting the treatment effect and the quality of outlet water, and the traditional filter plate and filter head water and gas distribution mode is mainly applied to water plants. When the biological filter is applied to sewage treatment, the probability of blockage, filter material hardening and other conditions is greatly increased easily due to the complex components and properties of different sewages and the high viscosity of aged biological membranes in the sewage, and the main reason of the application limitation of the biological filter sewage treatment process is caused.

Chinese patent ZL200680052832.1 discloses a system and method for interlocking support blocks, which comprises a brick body in a long strip shape, wherein the upper part of the brick body is provided with a packing groove, the lower part of the brick body is provided with a plurality of brick legs, a gap is arranged between two adjacent brick legs, one side of the brick body is provided with a clamping groove, the other side of the brick body is provided with a clamping head matched with the clamping groove, and after the clamping head on one side of the brick body is embedded into the clamping groove on the other side of the other brick body, the two brick bodies are connected. Although the filter can be regularly paved at the bottom of the filter, the brick turning is easy to generate due to the maladjustment of the length-width ratio of the filter, the phenomenon of uneven water distribution exists due to the fact that the filter has no inclined plane design in the width direction, in addition, the gap at the junction of 4 filter bricks is large after the installation is completed, and a pebble layer easily falls below the filter bricks.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a disc type air water distribution filter brick for a filter tank system.

The purpose of the utility model can be realized by the following technical scheme:

a disc type air-water distribution filter brick for a filter tank system comprises a filter brick body, wherein the filter brick body is formed by splicing at least two single bodies, each single body is provided with a packing cavity, and a linear air-water distribution air distribution seam is arranged between every two adjacent single bodies; four edges of the top surface of each single body of the filter brick body are provided with inclined planes, a V-shaped structure is formed between two opposite inclined planes, and convex hemispheres are arranged at the intersection of every two inclined planes; the first side surface, the second side surface, the third side surface and the fourth side surface of the filter brick body are provided with a buckle interlocking structure and a positioning bulge; the lower part of the buckle interlocking structure is provided with a positioning convex hemisphere and a positioning concave hemisphere; the filter brick comprises a filter brick body and is characterized in that the first side surface, the third side surface and the lower part of the side surface, parallel to the first side surface or the third side surface, of each single body are provided with an A-shaped opening, supporting legs and side legs, the lower parts of the second side surface and the fourth side surface of the filter brick body are provided with inverted U-shaped reflecting cavities, and the A-shaped openings are communicated with the inverted U-shaped reflecting cavities.

Furthermore, the filter brick body is formed by splicing two rectangular single bodies, the appearance formed by splicing the two rectangular single bodies is close to a square, and the two rectangular single bodies are integrally formed and connected inside the filter brick body.

Furthermore, the material of the filter brick body is HDPE and the like.

Furthermore, high-grade concrete is filled in the filling cavity in the filter brick body.

Further, the relative number relationship between the support legs and the A-shaped openings is N +1, that is, the number of the support legs is N, and the number of the A-shaped openings is N + 1.

Furthermore, in the first side face, the third side face of the filter brick body and the side face parallel to the first side face or the third side face of each single body, each side face is respectively provided with three supporting legs and four A-shaped openings, and two side legs are arranged at the end parts.

Furthermore, the first side, the second side, the third side and the fourth side are respectively provided with two buckling and interlocking structures.

Further, the snap interlock structure is composed of a pair of male and female heads.

Furthermore, the top of the packing cavity of the filter brick body is provided with a flange.

According to the utility model, the filter brick body is formed by splicing at least two single bodies, the single bodies are provided with independent filling cavities, and high-grade plain concrete is filled in the single bodies, so that the risk of brick overturning of the traditional rectangular filter brick in the backwashing stage of the filter tank can be prevented.

According to the utility model, the four side surfaces of the filter brick body are respectively provided with the buckle interlocking structure, the lower part of the buckle interlocking structure is provided with the positioning convex hemisphere and the concave hemisphere, each surface is provided with two buckle interlocking structures, the filter brick can be connected with the adjacent filter brick in four directions through the buckle interlocking structures, and the arrangement can ensure that the filter brick is connected with the adjacent filter brick in four directions and an integral air-water distribution module is formed at the bottom of the filter tank.

In the utility model, the inclined plane structures are arranged on the outer sides of the tops of the filter brick bodies, so that water distribution and air distribution are more uniform.

According to the utility model, the hemispherical structure is arranged at the bottom of the intersection of the inclined planes at the outer side of the top of the filter brick body, so that the area of the holes at the splicing part of the four filter bricks can be effectively reduced, and the pebble layer is prevented from falling to the lower part of the filter brick.

According to the utility model, the positioning bulges are arranged on the four side surfaces of the filter brick, so that the positioning effect can be realized when the filter brick is paved, and the installation error is reduced.

Compared with the prior art, the utility model has the following advantages

(1) The disc structure formed by splicing a plurality of single bodies, for example, the disc structure which is close to a square is formed by splicing two rectangular single bodies, so that the risk of brick turnover of the traditional filter brick in the backwashing stage due to imbalance of the length-width ratio is overcome, and the filter tank is safer to operate.

(2) The four sides of the top of the monomer are all designed as inclined planes, and a V-shaped water and gas distribution structure is formed between the adjacent inclined planes, so that the water and gas distribution is more uniform.

(3) The filter bricks are provided with the buckle interlocking structures on four sides, and the arrangement can ensure that the filter bricks are connected with adjacent filter bricks in four directions when being installed and form an integral air-water distribution module at the bottom of the filter tank.

(4) The bottom of the intersection of the inclined planes at the outer side of the top of the filter brick body is provided with a hemispherical structure, so that the area of holes at the splicing position of four filter bricks can be effectively reduced, and the pebble layer is prevented from falling to the lower part of the filter brick.

Drawings

Fig. 1 is a schematic top view of the present invention.

Fig. 2 is a schematic front view of the present invention.

Fig. 3 is a right-view structural diagram of the present invention.

Fig. 4 is a schematic three-dimensional structure of the present invention.

Fig. 5 is a schematic view of 4 filter blocks of the present invention joined together.

Fig. 6 is a schematic diagram of 3 single bodies splicing, wherein (a) is a schematic diagram of a top view structure, and (b) is a schematic diagram of a front view structure.

Fig. 7 is a schematic diagram of 4 single bodies splicing, wherein (a) is a top view structure schematic diagram, and (b) is a front view structure schematic diagram.

Reference numbers in the figures: the filter brick comprises a filter brick body 1, interlocking structures 2, a positioning bulge 3, a convex hemisphere 4, a linear water and air distribution seam 5, an inclined plane 6, a convex hemisphere 7, an inverted U-shaped reflection cavity 8, a concave hemisphere 9, supporting legs 10, an opening 11A, a filling cavity 12, a first side surface 13, a second side surface 14, a top surface 15, a third side surface 16, a fourth side surface 17, a flanging 18 and legs 19.

Detailed Description

The utility model is described in detail below with reference to the figures and specific embodiments.

The structure of a disc type air-water distribution filter brick for a filter system of one embodiment of the utility model is shown in figures 1-4. The filter brick body 1 is formed by splicing two rectangular single bodies, a filler cavity 12 is arranged on each rectangular single body, and high-grade plain concrete is filled in the filler cavity 12. The design of splicing two rectangular single bodies forms a disc structure close to a square, the risk of brick turning of the traditional filter brick in the back washing stage due to imbalance of the length-width ratio is overcome, and the filter tank is safer to operate. The filling cavity 12 is filled with high-grade plain concrete to support the bearing layer and the filter material layer on the upper part of the filter brick.

The top edge of each rectangular monomer is provided with an inclined surface 6, two opposite inclined surfaces form a V-shaped water and gas distribution structure, and a linear water and gas distribution seam 5 is arranged between the two rectangular monomers. By adopting the structure, the water distribution and the air distribution are more uniform. The back washing of the filter consists of water washing, air-water combined washing and water washing, and the process of distributing water and air on the plane of the filter is called water distribution and air distribution.

The filter brick body 1 is provided with two buckle interlocking structures 2 on the first side surface 13, the second side surface 14, the third side surface 16 and the fourth side surface 17 respectively, and the buckle interlocking structures 2 are composed of a pair of male heads and female heads. A group of positioning convex hemispheres 7 and a group of positioning concave hemispheres 9 are arranged below each snap interlocking structure 2. One filter brick body 1 is provided with eight buckle interlocking structures, eight sets of location convex hemisphere 7 and location concave hemisphere 9. The filter bricks can be connected with adjacent filter bricks in four directions through the buckle interlocking structure, and the arrangement can ensure that the filter bricks are connected with the adjacent filter bricks in four directions and form an integral air-water distribution module at the bottom of the filter tank.

The filter brick body 1 is provided with four convex hemispheres 4 at the intersection of every two of the inclined planes (6) of the first side surface 13, the second side surface 14, the third side surface 16 and the fourth side surface 17, and one filter brick body 1 is provided with four convex hemispheres 4. The area of the holes at the splicing position of the four filter bricks can be effectively reduced by the arrangement, and the pebble layer is prevented from falling to the lower parts of the filter bricks.

Two side legs 19, three supporting legs 10 and four A-shaped openings 11 are arranged on one side of the bottom of each rectangular single body (namely the first side surface 13 and the third side surface 16 of the filter brick body and the lower part of the side surface of each rectangular single body parallel to the first side surface or the third side surface). The lower part of each rectangular monomer is provided with an inverted U-shaped reflection cavity 8 (supporting legs and the tops of the filter bricks form the inverted U-shaped reflection cavity), and one filter brick body 1 is provided with two inverted U-shaped reflection cavities 8. The support leg 10 serves as a support. The a-shaped openings 11 constitute the connection channels of the filter bricks with the external space. The inverted U-shaped reflecting cavity 8 enables air and water to be fully mixed in the cavity and enter the upper space of the filter brick through the A-shaped opening 11.

The filter brick body 1 is provided with a positioning bulge 3 on each of the first side surface 13, the second side surface 14, the third side surface 16 and the fourth side surface 17, and one filter brick body is provided with four positioning bulges 3. The positioning bulge can play a positioning role in paving the filter bricks, and the installation error is reduced.

The top of the packing cavity 12 of the filter brick body 1 is provided with a flange 18, and the flange 18 can increase the strength of the filter brick shell.

In this embodiment, the housing of the filter block body 1 is made of HDPE (high density polyethylene), but is not limited thereto. The filter brick body 1 is formed by splicing two rectangular single bodies, and the shape is close to a square, but the filter brick is not limited to the square. For example, N monomers may be spliced together, the shapes of the spliced monomers may be adjusted, the number of the spliced monomers may also be adjusted, and fig. 6 and 7 show the cases of splicing 3 monomers and splicing 4 monomers.

The foregoing description of the embodiments is provided to facilitate an understanding and appreciation of the utility model by those skilled in the art, and it will be understood by those skilled in the art that various modifications may be made to the embodiments of the utility model, and that the general principles of the utility model may be applied to other embodiments without the use of inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.

Claims

1. A disc type air-water distribution filter brick for a filter tank system is characterized by comprising a filter brick body (1), wherein the filter brick body (1) is formed by splicing at least two single bodies, each single body is provided with a packing cavity (12), and a linear water and air distribution gap (5) is arranged between every two adjacent single bodies; four sides of the top surface (15) of each single body of the filter brick body (1) are provided with inclined planes (6), a V-shaped structure is formed between two opposite inclined planes (6), and convex hemispheres (4) are arranged at the intersection of every two inclined planes (6); the first side surface (13), the second side surface (14), the third side surface (16) and the fourth side surface (17) of the filter brick body (1) are provided with a buckle interlocking structure (2) and a positioning bulge (3); the lower part of the buckle interlocking structure (2) is provided with a positioning convex hemisphere (7) and a positioning concave hemisphere (9); the filter brick comprises a filter brick body (1), and is characterized in that a first side surface (13), a third side surface (16) and the lower portion of the side surface, parallel to the first side surface (13) or the third side surface (16), of each of the filter brick body (1) and each of the single filter brick body are provided with an A-shaped opening (11), supporting legs (10) and side legs (19), an inverted U-shaped reflection cavity (8) is arranged on the lower portions of a second side surface (14) and a fourth side surface (17) of the filter brick body (1), and the A-shaped opening (11) is communicated with the inverted U-shaped reflection cavity (8).

2. A disk air water distribution filter block for a filter system according to claim 1 wherein: the filter brick body (1) is formed by splicing two rectangular single bodies, the appearance formed by splicing the two rectangular single bodies is close to a square, and the two rectangular single bodies are integrally formed and connected inside the filter brick body (1).

3. A disk air water distribution filter block for a filter system according to claim 1 wherein: the filter brick body (1) is made of HDPE.

4. A disk air water distribution filter block for a filter system according to claim 1 wherein: and high-grade concrete is filled in the filling cavity (12) in the filter brick body (1).

5. A disk air water distribution filter block for a filter system according to claim 1 wherein: the relative number relationship between the support legs (10) and the A-shaped openings (11) is N +1, namely the number of the support legs (10) is N, and the number of the A-shaped openings (11) is N + 1.

6. A disk air water distribution filter block for a filter system according to claim 1 wherein: in first side (13), third side (16) and every monomer and first side (13) or third side (16) parallel side of filter brick body (1), every side respectively is equipped with three supporting leg (10) and four A type openings (11), sets up two limit legs (19) at the tip.

7. A disk air water distribution filter block for a filter system according to claim 1 wherein: the first side surface (13), the second side surface (14), the third side surface (16) and the fourth side surface (17) are respectively provided with two buckling and interlocking structures (2).

8. A disk air water distribution filter block for a filter system according to claim 1 wherein: the buckle interlocking structure (2) is composed of a pair of male and female heads.

9. A disk air water distribution filter block for a filter system according to claim 1 wherein: and a flanging (18) is arranged at the top of the packing cavity (12) of the filter brick body (1).