Filter brick for denitrification filter tank

Abstract

The utility model discloses a filter brick for a denitrification filter tank, which comprises a filter brick main body, a side baffle plate, a support leg, a son buckle and a mother buckle, and is characterized in that water and gas are guided and discharged through a discharge groove so as to distribute water and gas, water and gas below the filter brick main body are discharged through a discharge hole, and water and gas are introduced through the inside of the side baffle plate so as to distribute water and gas. The filter brick main body is supported by the supporting legs, water and gas are introduced through the main gas cavities, the introduced water and gas can be split through the two main gas cavities, so that the water and the gas can be better mixed, concrete is filled through the filling cavity and the filling groove, the dead weight of the filter brick main body is increased, the filter brick main body is prevented from being jacked up by recoil, and the water and the gas can flow and be mixed between the air passing cavity through the air passing cavity. The secondary buckles and the primary buckles are matched and connected with each other, so that a plurality of filter brick main bodies are connected into a whole and then laid in a filter tank, and the discharge end of the discharge groove can be enlarged through the guide inclined surface to prevent the discharge end from being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of filter bricks, in particular to a filter brick for a denitrification filter tank. Background Technique

[0002] The denitrification deep bed filter tank is a treatment unit that combines biological denitrification and filtration functions, and is usually used for the removal of suspended solids and nitrates in water treatment. The tank body adopts a narrow long corridor to make the influent more uniform. The nitrogen gas generated during the denitrification process will cause air resistance in the filtration, and it is necessary to expel the nitrogen gas through air-water backwashing to ensure the operation effect of the filter tank. The filter bricks for the filter tank are laid on the bottom of the denitrification deep bed filter tank, and an arched air reflection inner cavity is formed by the inverted U-shaped filter feet of the filter bricks. When air and water are mixed during backwashing, they are ejected from the gaps between adjacent filter bricks, so as to evenly distribute air and water in the entire filter tank area.

[0003] At present, there is only one reflection inner cavity in the single filter brick, resulting in a low mixing effect of water and gas below it. Therefore, a filter brick for a denitrification filter tank is needed to solve the above problems. Content of the Utility Model

[0004] In view of the problems existing in the prior art, the utility model discloses a filter brick for a denitrification filter tank. The technical scheme adopted is that it includes a filter brick main body, side baffles, support feet, male fasteners and female fasteners. The filter brick main body is in a cuboid structure. Discharge grooves are opened on the left and right side surfaces of the filter brick main body from top to bottom. The side baffles are fixedly installed at the left and right ends of the lower surface of the filter brick main body. The front and rear lengths of the side baffles are the same as the front and rear lengths of the filter brick main body. Discharge holes are opened on the side surfaces of the side baffles, and the discharge holes are communicated with the discharge grooves; the support feet are evenly arranged at the center of the lower surface of the filter brick main body from front to back, and the lower ends of the support feet extend below the side baffles; the male fasteners and female fasteners are arranged on the side surface of the filter brick main body. Water and gas are guided through the discharge grooves for water distribution and gas distribution, the water and gas below the filter brick main body are discharged through the discharge holes, water and gas are introduced into the inside of the side baffles, and the filter brick main body is supported by the support feet.

[0005] As a preferred technical scheme of the filter brick for a denitrification filter tank of the utility model, a main air cavity with an arched structure from front to back is formed between the side baffles and the support feet, and the main air cavity is communicated with the discharge holes. Water and gas are introduced through the main air cavity, and the introduced water and gas can be split by the two main air cavities so that they can be better mixed.

[0006] As a preferred technical scheme of the filter brick for a denitrification filter tank of the utility model, a filler groove is opened on the upper surface of the filter brick main body, a filler cavity is arranged inside the support feet, and the filler cavity is communicated with the filler groove. Concrete is filled through the filler cavity and the filler groove to increase the self-weight of the filter brick main body, thereby preventing it from being lifted by backwashing.

[0007] As a preferred technical solution of the filter brick for a denitrification filter of the present utility model, an air passage cavity with an arch structure is arranged between each support leg, and the air passage cavity is located between each discharge hole. Through the air passage cavity, water and gas can flow and mix between them.

[0008] As a preferred technical solution of the filter brick for a denitrification filter of the present utility model, the male buckle and the female buckle are symmetrically arranged on the left, right, front and back side surfaces of the filter brick body respectively, and the male buckle and the female buckle cooperate with each other. Through the mutual cooperation and connection of the male buckle and the female buckle, a plurality of filter brick bodies are connected into a whole, and then laid in the filter tank.

[0009] As a preferred technical solution of the filter brick for a denitrification filter of the present utility model, the left and right side surfaces at the upper end of the filter brick body are guiding inclined surfaces. Through the guiding inclined surfaces, the discharge end of the discharge groove can be enlarged to prevent it from being blocked.

[0010] The beneficial effects of the present utility model: The present utility model guides the discharge of water and gas through the discharge groove to perform water distribution and gas distribution, discharges the water and gas below the filter brick body through the discharge holes, introduces water and gas into the inside of the side baffle, supports the filter brick body through the support legs, introduces water and gas through the main air cavity, and can split the introduced water and gas through the two main air cavities so that they can be better mixed, fills concrete through the filler cavity and the filler groove to increase the self-weight of the filter brick body, thereby preventing it from being lifted by backwashing, enables water and gas to flow and mix between them through the air passage cavity, connects a plurality of filter brick bodies into a whole through the mutual cooperation and connection of the male buckle and the female buckle, and then lays them in the filter tank, and can enlarge the discharge end of the discharge groove through the guiding inclined surface to prevent it from being blocked. Description of the Drawings

[0011] Figure 1 is a schematic structural diagram of the present utility model;

[0012] Figure 2 is a top view of the present utility model;

[0013] Figure 3 is a front view of the present utility model;

[0014] Figure 4 is a cross-sectional view of the present utility model.

[0015] In the figure: 1 - filter brick body, 101 - discharge groove, 102 - filler groove, 103 - guiding inclined surface, 2 - side baffle, 201 - discharge hole, 202 - main air cavity, 3 - support leg, 301 - air passage cavity, 302 - filler cavity, 4 - male buckle, 5 - female buckle. Detailed Embodiments

[0016] Embodiment 1

[0017] AsFigures 1 to 4 As shown in the figure, the utility model discloses a filter brick for a denitrification filter tank. The adopted technical solution is as follows: it includes a filter brick main body 1, side baffles 2, support feet 3, male fasteners 4 and female fasteners 5. The filter brick main body 1 is in a cuboid structure. Discharge grooves 101 are opened on the left and right side surfaces of the filter brick main body 1 from top to bottom. The side baffles 2 are fixedly installed at the left and right ends of the lower surface of the filter brick main body 1. The front and rear lengths of the side baffles 2 are the same as the front and rear lengths of the filter brick main body 1. Discharge holes 201 are opened on the side surfaces of the side baffles 2, and the discharge holes 201 are communicated with the discharge grooves 101. The upper left and right side surfaces of the filter brick main body 1 are guiding inclined surfaces 103. Through the guiding inclined surfaces 103, the discharge end of the discharge grooves 101 can be enlarged to prevent it from being blocked; the support feet 3 are evenly arranged at the center of the lower surface of the filter brick main body 1 from front to back, and the lower ends of the support feet 3 extend below the side baffles 2. A main air cavity 202 with an arch-shaped structure from front to back is formed between the side baffles 2 and the support feet 3, and the main air cavity 202 is communicated with the discharge holes 201. Water and gas are introduced through the main air cavity 202. Through the two main air cavities 202, the introduced water and gas can be split so that they can be better mixed. A filler groove 102 is opened on the upper surface of the filter brick main body 1. A filler cavity 302 is arranged inside the support feet 3, and the filler cavity 302 is communicated with the filler groove 102. Concrete is filled through the filler cavity 302 and the filler groove 102 to increase the self-weight of the filter brick main body 1, thereby preventing it from being lifted by backwashing. An air passing cavity 301 with an arch-shaped structure is arranged between each support foot 3. The air passing cavity 301 is located between each discharge hole 201. Through the air passing cavity 301, water and gas can flow and mix between them; the male fasteners 4 and the female fasteners 5 are arranged on the side surface of the filter brick main body 1. The male fasteners 4 and the female fasteners 5 are symmetrically arranged on the left, right, front and rear side surfaces of the filter brick main body 1 respectively, and the male fasteners 4 and the female fasteners 5 cooperate with each other. Through the cooperation and connection of the male fasteners 4 and the female fasteners 5, several filter brick main bodies 1 are connected into a whole, and then laid in the filter tank. Water and gas are guided and discharged through the discharge grooves 101, so as to perform water distribution and gas distribution. The water and gas below the filter brick main body 1 are discharged through the discharge holes 201. Water and gas are introduced into the inside of the side baffles 2, and the filter brick main body 1 is supported by the support feet 3.

[0018] The working principle of the utility model: Multiple filter bricks of the present invention are connected through the male fasteners 4 and the female fasteners 5 and laid in the filter tank. Water and gas enter from the main air cavity 202, hit on the support feet 3, are separated by the support feet 3, and at the same time flow through the air passing cavity 301. After the water and gas are fully mixed, they are discharged from the discharge holes 201 and are flushed upward along the discharge grooves 101 and diffuse after reaching the guiding inclined surfaces 103.

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0020] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0021] The components not described in detail herein are prior art.

[0022] Although the specific embodiments of the present utility model have been described in detail above, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present utility model, and the modifications or deformations without creative labor are still within the protection scope of the present utility model.

Claims

1. A filter brick for a denitrification filter tank, comprising a filter brick body (1), a side baffle (2), a support foot (3), a male buckle (4) and a female buckle (5), characterized in that: The filter brick body (1) is a rectangular parallelepiped structure. The left and right side surfaces of the filter brick body (1) are provided with discharge grooves (101) from top to bottom. The side baffles (2) are fixedly mounted at the left and right ends of the lower surface of the filter brick body (1). The front-to-back length of the side baffles (2) is consistent with the front-to-back length of the filter brick body (1). A discharge hole (201) is provided on the side surface of the side baffles (2), and the discharge hole (201) is connected to the discharge groove (101). The support legs (3) are evenly arranged at the center of the lower surface of the filter brick body (1) from front to back, and the lower ends of the support legs (3) extend below the side baffles (2). The sub-clasps (4) and the female buckles (5) are arranged on the side surfaces of the filter brick body (1).

2. A filter brick for a denitrification filter according to claim 1, characterized in that: Between the side baffle (2) and the support foot (3) is a main air cavity (202) with an arched structure from front to back, and the main air cavity (202) is in communication with the discharge hole (201).

3. A filter brick for a denitrification filter according to claim 1, characterized in that: A filling groove (102) is provided on the upper surface of the filter brick body (1), and a filling cavity (302) is provided inside the support foot (3), and the filling cavity (302) is communicated with the filling groove (102).

4. The filter brick for denitrification filter according to claim 1, characterized in that: An air passage cavity (301) with an arched structure is provided between each supporting leg (3), and the air passage cavity (301) is located between each discharge hole (201).

5. The filter brick for denitrification filter according to claim 1, characterized in that: The male buckle (4) and the female buckle (5) are symmetrically arranged on the left and right front and back side surfaces of the filter brick body (1), and the male buckle (4) and the female buckle (5) cooperate with each other.

6. The filter brick for denitrification filter according to claim 1, characterized in that: The left and right side surfaces of the upper end of the filter brick body (1) are guide inclined surfaces (103).

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