Biological denitrification device for wastewater

Abstract

The utility model discloses a wastewater biological denitrification device which comprises a bioreactor and a sedimentation tank connected with the bioreactor through a pipeline, the bioreactor comprises a water tank, a top plate, a water guide mechanism, a floating type liquid guide assembly, a partition plate and a driver, and the top plate is located at the top of the water tank; the water guiding mechanism is installed on the top plate and composed of a liquid inlet pipe and flow dividing pipes, the liquid inlet pipe is connected with the flow dividing pipes, the floating type liquid guiding assemblies are evenly installed on the flow dividing pipes, and each floating type liquid guiding assembly comprises a water guiding pipe, a spraying pipe, a floating lantern ring, blades and a ball. The multiple sets of spray pipes are symmetrically installed on the water guide pipe, the floating lantern ring is slidably embedded in the lower end of the water guide pipe in a sleeving mode, and the two sets of blades are arranged. According to the biological denitrification device for the wastewater, disclosed by the utility model, high-efficiency denitrification treatment on the wastewater can be realized, and effective microbial strain introduction and denitrification treatment are carried out on sediments in the wastewater.

Description

Technical Field

[0001] The utility model relates to the technical field of biological wastewater denitrification, and specifically relates to a biological wastewater denitrification device. Background Art

[0002] A biological wastewater denitrification device is a device used to treat wastewater containing high concentrations of nitrides. It utilizes the principle of biological denitrification to convert nitrides in the wastewater into nitrogen gas and release it into the atmosphere through the action of microorganisms, thereby achieving the purpose of denitrification. The biological wastewater denitrification device consists of a biological reactor and a sedimentation tank, etc. The wastewater first enters the biological reactor, which contains specific microbial strains that can utilize the nitrides in the wastewater for growth and metabolism.

[0003] However, the existing biological wastewater denitrification methods have the following problems: After the wastewater is introduced into the biological reactor and a solution containing microbial strains is injected into the biological reactor to achieve the purpose of denitrifying the wastewater, due to the presence of a large amount of sediment in the wastewater, the sediment accumulates at the bottom of the reactor, which easily causes the microbial strains to be difficult to introduce into the lower-layer sediment, resulting in a poor denitrification effect in the sediment and affecting the denitrification effect of the wastewater. Therefore, corresponding technical solutions need to be designed to solve the existing technical problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a biological wastewater denitrification device, which solves the technical problem that after the wastewater is introduced into the biological reactor and a solution containing microbial strains is injected into the biological reactor to achieve the purpose of denitrifying the wastewater, due to the presence of a large amount of sediment in the wastewater, the sediment accumulates at the bottom of the reactor, which easily causes the microbial strains to be difficult to introduce into the lower-layer sediment, resulting in a poor denitrification effect in the sediment and affecting the denitrification effect of the wastewater.

[0005] To achieve the above object, the present utility model provides the following technical solutions: A wastewater biological denitrification device includes a biological reactor and a sedimentation tank connected to the biological reactor through a pipeline. The biological reactor includes a water tank, a top plate, a water guiding mechanism, a floating liquid guiding assembly, a partition plate, and a driver. The top plate is located at the top of the water tank. The water guiding mechanism is installed on the top plate and consists of a liquid inlet pipe and a shunt pipe. The liquid inlet pipe is connected to a plurality of shunt pipes. A plurality of groups of floating liquid guiding assemblies are evenly installed on the shunt pipes. The floating liquid guiding assembly includes a water guiding pipe, a spray pipe, a floating collar, blades, and balls. The water guiding pipe is longitudinally installed on the shunt pipe. A plurality of groups of spray pipes are symmetrically installed on the water guiding pipe. The floating collar is slidably sleeved on the lower end of the water guiding pipe. Two groups of blades are symmetrically installed on the floating collar. Two groups of balls are provided, and the upper ends of the two groups of balls are connected to the floating collar through connecting rods. The partition plate is located inside the water tank and an installation groove is formed below it. Three groups of drivers are evenly installed in the installation groove. The driver is used in cooperation with the floating collar. The sedimentation tank includes a tank body and an exhaust plate installed on the top of the tank body. A plurality of groups of exhaust holes are opened on the exhaust plate.

[0006] As a preferred embodiment of the present utility model, the spray pipe has an L-shaped structure and the lower end spray port is directed downward.

[0007] As a preferred embodiment of the present utility model, the driver includes a rotating wheel, a motor, an annular transmission belt, and a driving seat. Two groups of rotating wheels are symmetrically installed in the installation groove. The motor is installed below one of the rotating wheels and the power output end is connected to the rotating wheel. The annular transmission belt is sleeved between the two groups of rotating wheels. A plurality of groups of driving seats are evenly arranged inside the annular transmission belt.

[0008] As a preferred embodiment of the present utility model, the driving seat includes a chassis and a top plate fixed on the chassis. Two groups of adjusting blocks are installed on the top plate. The adjusting blocks are used in cooperation with the balls.

[0009] As a preferred embodiment of the present utility model, the adjusting block is integrally in a fan-shaped structure and the height of one end is greater than that of the other end. The upper surface of the adjusting block is in an inclined structure.

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

[0011] 1. This solution optimizes the structure of the existing wastewater biological denitrification device. A plurality of groups of floating liquid guiding assemblies are evenly arranged inside the biological reactor. The floating disk of the floating liquid guiding assembly can be moved up and down by the driver at the bottom, and the sediment can be adjusted by floating, so that microorganisms can enter the sediment, ensuring the effect of wastewater denitrification.

[0012] 2. The wastewater biological denitrification device designed in this solution can achieve high-efficiency denitrification treatment of wastewater, and effectively introduce microbial strains and conduct denitrification treatment for the sediment in the wastewater. Brief Description of the Drawings

[0013] Figure 1 is the overall structure diagram of the present utility model;

[0014] Figure 2 is the structure diagram of the floating liquid guiding component of the present utility model;

[0015] Figure 3 is the structure diagram of the driver of the present utility model.

[0016] In the figure: 1, water tank; 2, top plate; 3, partition board; 4, driver; 5, liquid inlet pipe; 6, shunt pipe; 7, water guide pipe; 8, spray pipe; 9, floating collar; 10, blade; 11, ball; 12, installation groove; 13, pool body; 14, exhaust plate; 15, exhaust hole; 16, rotating wheel; 17, motor; 18, annular transmission belt; 19, drive seat; 20, chassis; 21, top plate; 22, adjusting block. Detailed Embodiment

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer to Figures 1 - 3, the present utility model provides a technical solution: a wastewater biological denitrification device, which includes a biological reactor and a sedimentation tank connected to the biological reactor through a pipeline. The biological reactor includes a water tank 1, a top plate 2, a water guiding mechanism, a floating liquid guiding component, a partition plate 3 and a driver 4. The top plate 2 is located at the top of the water tank 1. The water guiding mechanism is installed on the top plate 2 and consists of a liquid inlet pipe 5 and a shunt pipe 6. The liquid inlet pipe 5 is connected to a number of shunt pipes 6. A number of groups of floating liquid guiding components are evenly installed on the shunt pipe 6. The floating liquid guiding component includes a water guiding pipe 7, a spray pipe 8, a floating collar 9, blades 10 and balls 11. The water guiding pipe 7 is longitudinally installed on the shunt pipe 6. A number of groups of spray pipes 8 are symmetrically installed on the water guiding pipe 7. The floating collar 9 is slidably sleeved on the lower end of the water guiding pipe 7. Two groups of blades 10 are symmetrically installed on the floating collar 9. Two groups of balls 11 are provided, and the upper ends of the two groups of balls 11 are connected to the floating collar 9 through a connecting rod. The partition plate 3 is located inside the water tank 1 and an installation groove 12 is formed below it. Three groups of drivers 4 are evenly installed in the installation groove 12. The driver 4 is used in cooperation with the floating collar 9. The sedimentation tank includes a tank body 13 and an exhaust plate 14 installed on the top of the tank body 13. A number of groups of exhaust holes 15 are opened on the exhaust plate 14.

[0019] Further improved, as Figure 2 shown: The spray pipe 8 is in an L-shaped structure and the lower spray port is facing downwards, so that the solution containing microbial strains can be sprayed out. The microbial strains include nitrifying bacteria, anaerobic denitrifying bacteria, etc.

[0020] Further improved, as Figure 3 shown: The driver 4 includes a rotating wheel 16, a motor 17, an annular transmission belt 18 and a driving seat 19. Two groups of rotating wheels 16 are symmetrically installed in the installation groove 12. The motor 17 is installed below one of the rotating wheels 16 and the power output end is connected to the rotating wheel 16. The annular transmission belt 18 is sleeved between the two rotating wheels 16. The inner side of the annular transmission belt 18 is in a toothed structure, and the edge of the driving seat 19 is also processed into a toothed structure, and the two are meshed for easy driving. A number of groups of driving seats 19 are evenly arranged in the annular transmission belt 18. The motor 17 drives the rotating wheel 16 to rotate. During the rotation of the rotating wheel 16, the annular transmission belt 18 is driven to rotate, and the annular transmission belt 18 drives the driving seat 17 to rotate synchronously.

[0021] Further improved, as Figure 2 shown: The driving seat 19 includes a chassis 20 and a top plate 21 fixed on the chassis 20. Two adjusting blocks 22 are installed on the top plate 21. The adjusting blocks 22 are used in cooperation with the balls 11. The purpose of floating the balls 11 up and down can be achieved through the adjusting blocks 22.

[0022] Specifically, the adjusting block 22 is integrally in a fan-shaped structure and the height of one end is greater than that of the other end. The upper surface of the adjusting block 22 is in an inclined structure. Such a design facilitates the movement of the ball 11 along the adjusting block 22, thereby driving the floating collar 9 and the blade 10 to float up and down, lifting the sediment at the bottom to better contact with the microbial strains, so as to achieve the purpose of biological denitrification.

[0023] During use: when the wastewater needs to be denitrified in the present utility model, the wastewater is introduced into the water tank 1 through a pipeline, and the solution containing microbial strains is introduced into the floating liquid guiding assembly through the water guiding mechanism. The microbial strains are introduced through the water guiding pipe 7 and sprayed out along the spray pipe 8. In addition, the motor 17 drives the rotating wheel 16 to rotate. During the rotation of the rotating wheel 16, the annular transmission belt 18 is driven to rotate. The annular transmission belt 18 drives the driving seat 17 to rotate synchronously. During the rotation of the driving seat 17, it acts on the ball 11, and the ball 11 floats up and down along the adjusting block 22, thereby driving the floating collar 9 and the blade 10 to float up and down, lifting the sediment at the bottom to better contact with the microbial strains, so as to achieve the purpose of biological denitrification.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends", etc. is 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, and therefore cannot be understood as a limitation to the present utility model.

[0025] In addition, the terms "first", "second", "third", "fourth" 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", "third", "fourth" may explicitly or implicitly include at least one of such features.

[0026] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "set", "connected", "fixed", "swivelly connected", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A wastewater biological denitrification device, characterized in that: The invention comprises a bioreactor and a sedimentation tank connected to the bioreactor via a pipeline. The bioreactor comprises a water tank (1), a top plate (2), a water guide mechanism, a floating liquid guide component, a partition plate (3) and a driver (4). The top plate (2) is located at the top of the water tank (1). The water guide mechanism is installed on the top plate (2) and consists of a liquid inlet pipe (5) and a diversion pipe (6). The liquid inlet pipe (5) is connected to a plurality of groups of diversion pipes (6). The floating liquid guide component is divided into a plurality of groups and is evenly installed on the diversion pipes (6). The floating liquid guide component comprises a water guide pipe (7), a nozzle (8), a floating collar (9), a blade (10) and a ball (11). The water guide pipe (7) is longitudinally installed on the diversion pipe (6). The nozzle (8) is divided into a plurality of groups. The floating collar (9) is slidably embedded in the lower end of the water pipe (7), the blades (10) are divided into two groups, the two groups of blades (10) are symmetrically installed on the floating collar (9), the balls (11) are divided into two groups, the upper ends of the two groups of balls (11) are connected to the floating collar (9) through connecting rods, the partition (3) is located in the water tank (1) and has a mounting groove (12) formed below, the driver (4) is divided into three groups and is evenly installed in the mounting groove (12), the driver (4) is used in conjunction with the floating collar (9), and the sedimentation tank comprises a tank body (13) and an exhaust plate (14) installed on the top of the tank body (13), and a plurality of exhaust holes (15) are opened on the exhaust plate (14).

2. A wastewater biological denitrification device according to claim 1, characterized in that: The nozzle (8) is in an L-shaped structure with the nozzle at the lower end facing downward.

3. A wastewater biological denitrification device according to claim 1, characterized in that: The driver (4) comprises a rotating wheel (16), a motor (17), an annular transmission belt (18) and a driving seat (19); the rotating wheels (16) are divided into two groups and are symmetrically installed in the installation groove (12); the motor (17) is installed below one group of rotating wheels (16) and the power output end is connected to the rotating wheel (16); the annular transmission belt (18) is embedded between the two groups of rotating wheels (16); and the driving seat (19) is divided into a plurality of groups and is evenly arranged in the annular transmission belt (18).

4. A wastewater biological denitrification device according to claim 3, characterized in that: The driving seat (19) comprises a bottom plate (20) and a top plate (21) fixed on the bottom plate (20); two groups of adjustment blocks (22) are installed on the top plate (21); and the adjustment blocks (22) are used in conjunction with the balls (11).

5. A wastewater biological denitrification device according to claim 4, characterized in that: The adjusting block (22) is in a fan-shaped structure as a whole, with one end having a height greater than the other end, and the upper surface of the adjusting block (22) is in an inclined structure.

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