Water and gas distribution filter brick applied to biological aerated filter

Abstract

The utility model discloses a water and gas distribution filter brick applied to a biological aerated filter. The water and gas distribution filter brick comprises a filter brick main body, a mounting groove is formed in the top of the filter brick main body; a distribution cavity is formed in the filter brick main body; compensation cavities are formed in the two sides of the distribution cavity; first through holes communicated with the compensation cavity are uniformly distributed in the top of the filter brick main body; second through holes communicating with the compensation cavities on the same side are evenly distributed in the two sides of the distribution cavity. The filter brick disclosed by the utility model is simple in structure, convenient to mount, space-saving and good in filtering and backwashing effects.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a water and air distribution filter brick used in an aerated biological filter tank. Background Art

[0002] The traditional aerated biological filter mainly adopts a water and air distribution system of an integrally cast filter plate + filter head, which mainly includes an integrally cast filter plate and a long-handled filter head installed on the filter plate. Considering the maintenance and replacement of the filter head, a maintenance space of at least 1 meter will be set at the bottom of the filter plate, resulting in an increase in the overall civil construction volume, and the increase is not conducive to improving the overall process efficiency, resulting in a waste of investment. The system has fewer water and air distribution points, resulting in uneven backwash intensity, and in actual operation, the filter head is prone to clogging or damage. In order to solve this phenomenon, this patent is invented to use a new type of filter brick that is easy to install, has more water and air distribution points, and is not prone to clogging, so as to achieve improved treatment effects and economic benefits. Utility Model Content

[0003] In view of the above defects or deficiencies in the prior art, it is desired to provide a water and air distribution filter brick for use in an aerated biological filter tank, which has a simple structure, is easy to install, saves space, and has good filtering and backwashing effects.

[0004] The utility model provides a water and air distribution filter brick used in an aerated biological filter tank, comprising a filter brick body; a mounting groove is arranged on the top of the filter brick body from one end to the other end; a distribution cavity is arranged in the filter brick body from one end to the other end, and the distribution cavity passes through the two ends of the filter brick body; compensation cavities are symmetrically arranged on both sides of the distribution cavity in the filter brick body, and the compensation cavities pass through the two ends of the filter brick body; first through holes connected to the compensation cavities are evenly distributed on the top of the filter brick body; second through holes connected to the compensation cavities on the same side are evenly distributed on both sides of the distribution cavity; and docking frames are arranged at both ends of the filter brick body.

[0005] Furthermore, the cross section of the distribution cavity is an isosceles trapezoid, and the second through holes are distributed on two sides of the distribution cavity.

[0006] Furthermore, the diameter of the first through hole is 8-12 mm; the diameter of the second through hole is 8-12 mm.

[0007] Furthermore, the filter brick body is a cuboid.

[0008] Furthermore, a window communicating with the distribution chamber is provided at the bottom of the filter brick body.

[0009] Furthermore, the filter brick body is made of PP material.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The filter bricks of the utility model are provided with installation grooves, distribution chambers and compensation chambers. When laying the filter bricks, they are laid in rows to the bottom of the pool body, and the filter bricks in each row are connected end to end, so that the installation grooves, distribution chambers and compensation chambers of the filter bricks in the same row are connected, and then the aeration pipe is passed through the installation groove, and the water outlet pipe and the backwash air pipe are sealed and connected to the distribution chamber of the filter brick at one end. There is no need to reserve inspection and maintenance space at the bottom. The filter bricks of the present application have a simple structure, are easy to install, and save space; there are many aeration holes, first through holes and second through holes, which increase the water and air distribution points of the system, and have good filtering and backwashing effects.

[0012] It should be understood that the contents described in the utility model summary are not intended to limit the key or important features of the embodiments of the utility model, nor are they intended to limit the scope of the utility model. Other features of the utility model will become easy to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0014] Figure 1 It is a schematic diagram of the top view structure of the filter brick;

[0015] Figure 2 It is a schematic diagram of the end structure of the filter brick;

[0016] Figure 3 It is a schematic diagram of the longitudinal cross-sectional structure of the filter brick;

[0017] Figure 4 It is a schematic diagram of the transverse cross-sectional structure of the filter brick;

[0018] Figure 5 It is a structural schematic diagram of the filter brick in filtering state;

[0019] Figure 6 It is a structural schematic diagram of the filter brick backwashing state;

[0020] Figure 7 Schematic diagram of the top view of the filter brick laying structure.

[0021] Numbers in the figure:

[0022] 1. Filter brick body; 2. Installation slot; 3. Distribution chamber; 4. Compensation chamber; 5. Aeration pipe;

[0023] 11. Docking frame; 12. Window opening;

[0024] 31. a second through hole;

[0025] 41. A first through hole. DETAILED DESCRIPTION

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings.

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] Please refer to Figure 1 to Figure 6 The embodiment of the utility model provides a water and air distribution filter brick used in an aerated biological filter, comprising a filter brick body 1; a mounting groove 2 is arranged on the top of the filter brick body 1 from one end to the other end; a distribution cavity 3 is arranged inside the filter brick body 1 from one end to the other end, and the distribution cavity 3 passes through both ends of the filter brick body 3; compensation cavities 4 are symmetrically arranged on both sides of the distribution cavity 3 in the filter brick body 1, and the compensation cavity 4 passes through both ends of the filter brick body 1; first through holes 41 connected to the compensation cavity 4 are evenly distributed on the top of the filter brick body 1; second through holes 31 connected to the compensation cavity 4 on the same side are evenly distributed on both sides of the distribution cavity 3.

[0029] In this embodiment, when laying the filter bricks, they are laid in rows at the bottom of the tank body of the sewage treatment system. Figure 7 As shown, the filter bricks in each row are connected end to end, so that the installation grooves 2, distribution chambers 3 and compensation chambers 4 of the filter bricks in the same row are connected.

[0030] Then, the aeration pipes 5 are passed through the installation grooves 2 of the filter bricks in a row one by one, and the outlet pipe and the backwash air pipe are sealed and connected to the distribution cavity 3 of the filter brick at one end, thereby completing the laying of the filter bricks without reserving an inspection and maintenance space underneath.

[0031] like Figure 5 As shown, when the system is filtering, sewage enters the compensation chamber 4 through the first through hole 41, and then enters the distribution chamber 3 through the second through hole 31. For the filter bricks in the same row, the treated water enters the distribution chamber 3 and is discharged through the outlet pipe at one end. At the same time, the gas output by the aeration pipe 5 enters the tank body through the aeration holes evenly distributed thereon for system aeration.

[0032] like Figure 6 As described, when the system is backwashing, the backwash water enters the distribution chamber 3 through the water outlet pipe, and the backwash gas enters the distribution chamber 3 through the backwash gas pipe; the backwash water and the backwash gas are mixed in the distribution chamber 3, and then enter the compensation chamber 4 through the second through hole 31, and then enter the tank body through the first through hole 41 to perform system backwashing.

[0033] The filter brick of the present application has a simple structure, is easy to install, and saves space; there are many aeration holes, first through holes, and second through holes, which increase the water and air distribution points of the system, and have good filtering and backwashing effects.

[0034] In a preferred embodiment, if Figure 2 and Figure 4 As shown, the cross section of the distribution chamber 3 is an isosceles trapezoid, and the second through holes 31 are distributed on both sides of the distribution chamber 3. Since water flows up and down, the second through holes 31 distributed obliquely improve the smoothness of water flowing through the filter brick while ensuring the water and air distribution effect.

[0035] In a preferred embodiment, the aperture of the first through hole 41 is 8-12 mm; the aperture of the second through hole 31 is 8-12 mm; 6-10 mm aeration holes are evenly opened on the aeration tube 5 along its length direction, and the water and air distribution effect is good under the cooperation of the first through hole 41, the second through hole 31 and the aeration holes.

[0036] In a preferred embodiment, the filter brick body 1 is a rectangular parallelepiped, which is convenient for laying the filter bricks.

[0037] In a preferred embodiment, if Figure 2 and Figure 3 As shown, both ends of the filter brick body 1 are provided with docking frames 11 to increase the area of ​​the filter brick ends and facilitate docking between the filter bricks.

[0038] In a preferred embodiment, if Figure 3 and Figure 4 As shown, the bottom of the filter brick body 1 is provided with a window 12 connected to the distribution chamber 3. The filter brick is laid on the bottom of the tank body and fixed to the bottom of the tank body by building materials (such as mortar), and a seal is formed at the same time. Therefore, the window 12 will not affect the outflow of treated water through the window, and the weight of the filter brick is reduced without affecting the structural strength, saving raw materials; it is convenient to lay the filter brick and reduce costs.

[0039] In a preferred embodiment, the filter brick body 1 is made of PP material, and its service life in an underwater environment can reach more than 15 years.

[0040] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] In the description of this specification, the description of the terms "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A water and air distribution filter brick used in an aerated biological filter, characterized in that: The invention comprises a filter brick body (1); a mounting groove (2) is arranged on the top of the filter brick body (1) from one end to the other end; a distribution cavity (3) is arranged inside the filter brick body (1) from one end to the other end, and the distribution cavity (3) passes through the two ends of the filter brick body (1); compensation cavities (4) are symmetrically arranged on both sides of the distribution cavity (3) inside the filter brick body (1), and the compensation cavity (4) passes through the two ends of the filter brick body (1); first through holes (41) connected to the compensation cavity (4) are evenly distributed on the top of the filter brick body (1); second through holes (31) connected to the compensation cavity (4) on the same side are evenly distributed on both sides of the distribution cavity (3); and docking frames (11) are arranged on both ends of the filter brick body (1).

2. The water and air distribution filter brick used in aerated biological filter according to claim 1, characterized in that: The cross section of the distribution chamber (3) is in the shape of an isosceles trapezoid, and the second through holes (31) are distributed on the two sides of the distribution chamber (3).

3. The water and air distribution filter brick used in aerated biological filter according to claim 1, characterized in that: The diameter of the first through hole (41) is 8-12 mm; the diameter of the second through hole (31) is 8-12 mm.

4. The water and air distribution filter brick used in aerated biological filter according to claim 1, characterized in that: The filter brick body (1) is a rectangular parallelepiped.

5. The water and air distribution filter brick used in aerated biological filter according to claim 1, characterized in that: The bottom of the filter brick body (1) is provided with a window (12) which is in communication with the distribution chamber (3).

6. The water and air distribution filter brick used in aerated biological filter according to claim 1, characterized in that: The filter brick body (1) is made of PP material.

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