Filter head device of denitrification filter

Abstract

The utility model relates to the technical field of denitrification filter heads, in particular to a filter head device of a denitrification filter tank. According to the technical scheme, the filter head device of the denitrification filter tank comprises a filter tank assembly, a cleaning cover assembly and a filter element assembly, a cleaning cover assembly is arranged at the upper end of the filter tank assembly; a filter element assembly is arranged in the filter tank assembly; the filter tank assembly comprises a tank body, a discharge port, a feed port and a sealing buckle; the cleaning cover assembly comprises a sealing cover, a waterproof driving motor and a cleaning brush; the filter element assembly comprises an outer filter element shell, a denitrification composite filter element and an inner filter element shell. The waterproof driving motor of the cleaning cover assembly drives the cleaning brush to rotate, and centrifugal force generated when the cleaning brush rotates is utilized to enable the brush to be in contact with the inner filter element shell and generate friction with the inner filter element shell. And the cleaning brush rubs with the inner filter element shell to brush off stains attached to the inner wall of the inner filter element shell and discharge the stains outwards along the feeding hole along with backwashing water flow.

Description

Technical Field

[0001] This utility model belongs to the field of denitrification filter head technology, specifically relating to filter head devices for denitrification filter beds. Background Technology

[0002] In the wastewater treatment process, denitrification filters convert nitrate nitrogen into nitrogen gas through the action of microorganisms, thereby achieving the purpose of denitrification. The filter head device is mainly used for uniform water distribution and collection of treated water, and at the same time plays a role in uniform gas distribution during the backwashing process.

[0003] During the backwashing process, although the water and air flow washes the surface of the filter element, a large amount of dirt still adheres to the inner wall of the filter element. This dirt is mainly composed of microorganisms, suspended solids, and some recalcitrant organic matter. Due to the special structure of the inner wall of the filter element, the backwashing water and air flow cannot completely cover and wash all parts of the inner wall, resulting in the dirt not being effectively removed.

[0004] Therefore, for the existing denitrification filter cartridges mentioned above, since a large amount of dirt still adheres to the inner wall during backwashing, resulting in poor backwashing effect, a filter head device for denitrification filters can be designed. Utility Model Content

[0005] In order to overcome the problem that the filter cartridges of existing denitrification filters still have a lot of dirt sticking to the inner wall during backwashing, resulting in poor backwashing effect.

[0006] The technical solution of this utility model is as follows: a filter head device for a denitrification filter, including a filter tank assembly, a cleaning cover assembly, and a filter element assembly; the upper end of the filter tank assembly is provided with a cleaning cover assembly; the filter tank assembly is provided inside the filter tank assembly; the filter tank assembly includes a tank body, a discharge port, a feed port, and a sealing buckle; the cleaning cover assembly includes a sealing cover, a waterproof drive motor, and a cleaning brush; the filter element assembly includes an outer filter element shell, a denitrification composite filter element, and an inner filter element shell.

[0007] Preferably, the cleaning brush is driven to rotate by a waterproof drive motor of the cleaning cover assembly. The centrifugal force of the rotating cleaning brush causes it to contact the inner filter element housing and generate friction with it. The friction between the cleaning brush and the inner filter element housing brushes off the dirt attached to the inner wall of the inner filter element housing and discharges it to the outside along the feed port with the backwash water flow. This solves the problem of poor backwashing effect of the filter element of the existing denitrification filter tank because a large amount of dirt still sticks to the inner wall during backwashing.

[0008] Preferably, the upper end of the tank is provided with a sealing cap; the sealing cap is provided with sealing buckles on all four sides, and the sealing buckles are connected to the sealing cap latches.

[0009] Preferably, a waterproof drive motor is fixedly installed at the lower end of the sealing cover; a cleaning brush is installed at the lower end of the waterproof drive motor, and the waterproof drive motor drives the cleaning brush to rotate.

[0010] Preferably, the lower end and one side of the tank are respectively provided with a feed inlet and a discharge outlet, and the feed inlet and discharge outlet are integrally formed with the tank body.

[0011] Preferably, the tank is equipped with a denitrification composite filter element inside; the inner and outer filter element shells are respectively provided on the inner and outer sides of the denitrification composite filter element, and the inner and outer filter element shells are fixedly connected to each other.

[0012] Preferably, the upper port of the filter element assembly is sealed by a sealing cap; the lower port of the filter element assembly is connected to the feed inlet.

[0013] Preferably, when the cleaning brush is driven to rotate by a waterproof drive motor, the brush expands due to centrifugal force and comes into contact with and rubs against the inner wall of the inner filter housing.

[0014] The beneficial effects of this utility model are:

[0015] 1. Existing denitrification filter cartridges suffer from poor backwashing performance because a large amount of dirt still adheres to the inner wall during backwashing. This problem is solved by using a waterproof drive motor in the cleaning cover assembly to rotate the cleaning brush. The centrifugal force of the rotating brush causes it to contact the inner filter cartridge housing and generate friction. This friction removes the dirt adhering to the inner wall of the inner filter cartridge housing and discharges it outwards through the inlet with the backwash water flow.

[0016] 2. Through the setting of sealing buckles and sealing caps, the sealing buckles tightly lock the sealing caps onto the tank body for a sealed connection, which effectively improves the sealing performance of the tank body and facilitates the replacement of the filter element assembly after the sealing caps are removed, greatly improving the maintenance efficiency of the filter element assembly. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of the filter head device of the denitrification filter of this utility model.

[0018] Figure 2 The diagram shown is an exploded three-dimensional structural diagram of the filter head device of the denitrification filter of this utility model.

[0019] Figure 3 The diagram shown is a three-dimensional top view of the overall structure of the filter head device of the denitrification filter of this utility model.

[0020] Figure 4The diagram shown is a three-dimensional cross-sectional view of the tank body of the filter head device of the denitrification filter of this utility model.

[0021] The labels in the attached diagram are as follows: 1. Filter tank assembly; 2. Cleaning cover assembly; 3. Filter element assembly; 101. Tank body; 102. Discharge port; 103. Feed port; 104. Sealing buckle; 201. Sealing cover; 202. Waterproof drive motor; 203. Cleaning brush; 301. Outer filter element housing; 302. Denitrification composite filter element; 303. Inner filter element housing. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figure 1-4 The present invention provides an embodiment of a filter head device for a denitrification filter, comprising a filter tank assembly 1, a cleaning cover assembly 2, and a filter element assembly 3; the upper end of the filter tank assembly 1 is provided with the cleaning cover assembly 2; the filter element assembly 3 is provided inside the filter tank assembly 1; the filter tank assembly 1 includes a tank body 101, a discharge port 102, a feed port 103, and a sealing buckle 104; the cleaning cover assembly 2 includes a sealing cover 201, a waterproof drive motor 202, and a cleaning brush 203; the filter element assembly 3 includes an outer filter element housing 301, a denitrification composite filter element 302, and an inner filter element housing 303.

[0024] Please see Figure 1-4 In this embodiment, a sealing cap 201 is provided at the upper end of the tank body 101; sealing buckles 104 are provided around the sealing cap 201, and the sealing buckles 104 are locked to the sealing cap 201; a waterproof drive motor 202 is fixedly provided at the lower end of the sealing cap 201; a cleaning brush 203 is provided at the lower end of the waterproof drive motor 202, and the waterproof drive motor 202 drives the cleaning brush 203 to rotate; a feed inlet 103 and a discharge outlet 102 are respectively provided at the lower end and one side of the tank body 101, and the feed inlet 103 and the discharge outlet 102 are connected to the tank body 101. 1. One-piece molding configuration; a denitrification composite filter element 302 is installed inside the tank body 101; an inner filter element housing 303 and an outer filter element housing 301 are respectively provided on the inner and outer sides of the denitrification composite filter element 302, and the inner filter element housing 303 and the outer filter element housing 301 are fixedly connected; the upper port of the filter element assembly 3 is sealed by the sealing cap 201; the lower port of the filter element assembly 3 is connected to the feed port 103; when the cleaning brush 203 is driven to rotate by the waterproof drive motor 202, it expands due to centrifugal force and contacts and rubs against the inner wall of the inner filter element housing 303.

[0025] During operation, the waterproof drive motor 202 of the cleaning cover assembly 2 drives the cleaning brush 203 to rotate. The centrifugal force of the rotating cleaning brush 203 causes the brush to contact the inner filter housing 303 and generate friction with it. The friction between the cleaning brush 203 and the inner filter housing 303 brushes off the dirt attached to the inner wall of the inner filter housing 303 and discharges it to the outside along the feed inlet 103 with the backwash water flow. This solves the problem of poor backwashing effect of the filter cartridges in existing denitrification filters because a large amount of dirt still sticks to the inner wall during backwashing.

[0026] Next, the sealing buckle 104 tightly locks the sealing cover 201 onto the tank body 101 for a sealed connection, which effectively improves the sealing performance of the tank body 101 and facilitates the replacement of the filter element assembly 3 after the sealing cover 201 is removed, greatly improving the maintenance efficiency of the filter element assembly 3.

[0027] Through the above steps, the cleaning brush 203 is driven to rotate by the waterproof drive motor 202 of the cleaning cover assembly 2. The centrifugal force of the rotating cleaning brush 203 causes its bristles to contact the inner filter element housing 303 and generate friction with it. The friction between the cleaning brush 203 and the inner filter element housing 303 brushes off the dirt attached to the inner wall of the inner filter element housing 303 and discharges it to the outside along the feed inlet 103 with the backwash water flow. This avoids the problem of poor backwashing effect caused by the filter element of the existing denitrification filter, which still has a lot of dirt stuck to the inner wall during backwashing.

[0028] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. Filter head arrangement for a denitrification filter, comprising a filter tank assembly (1), characterized in that: It also includes a cleaning cover assembly (2) and a filter element assembly (3); the upper end of the filter tank assembly (1) is provided with a cleaning cover assembly (2); the filter tank assembly (1) is provided with a filter element assembly (3); the filter tank assembly (1) includes a tank body (101), a discharge port (102), a feed port (103), and a sealing buckle (104); the cleaning cover assembly (2) includes a sealing cover (201), a waterproof drive motor (202), and a cleaning brush (203); the filter element assembly (3) includes an outer filter element housing (301), a denitrification composite filter element (302), and an inner filter element housing (303).

2. The filter head apparatus of a denitrifying filter according to claim 1, characterized in that: A sealing cap (201) is provided at the upper end of the tank body (101); sealing buckles (104) are provided around the sealing cap (201), and the sealing buckles (104) are locked to the sealing cap (201).

3. The filter head apparatus of a denitrifying filter according to claim 2, characterized in that: A waterproof drive motor (202) is fixedly installed at the lower end of the sealing cover (201); a cleaning brush (203) is installed at the lower end of the waterproof drive motor (202), and the waterproof drive motor (202) drives the cleaning brush (203) to rotate.

4. The filter head apparatus of the denitrifying filter according to claim 1, characterized in that: The lower end and one side of the tank body (101) are respectively provided with a feed inlet (103) and a discharge outlet (102), and the feed inlet (103) and the discharge outlet (102) are integrally formed with the tank body (101).

5. The filter head apparatus of the denitrifying filter according to claim 1, characterized in that: The tank (101) is equipped with a denitrification composite filter element (302); the inner and outer sides of the denitrification composite filter element (302) are respectively provided with an inner filter element shell (303) and an outer filter element shell (301), and the inner filter element shell (303) and the outer filter element shell (301) are fixedly connected.

6. The head assembly of a denitrifying filter according to claim 1, characterized in that: The upper port of the filter element assembly (3) is sealed by the sealing cap (201); the lower port of the filter element assembly (3) is connected to the feed inlet (103).

7. The filter head apparatus of the denitrifying filter according to claim 3, characterized in that: When the cleaning brush (203) is driven to rotate by the waterproof drive motor (202), the brush expands due to centrifugal force and comes into contact with and rubs against the inner wall of the inner filter housing (303).

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