Compact plankton membrane filter

Abstract

The utility model relates to the field of plankton membrane filters, and discloses a compact plankton membrane filter which comprises a filter tank, a stirring assembly arranged at the top of the filter tank, a flushing assembly arranged at the top of the filter tank, a water inlet pipe arranged on the right side wall of the filter tank, and a water outlet pipe arranged on the left side wall of the filter tank. The stirring assembly comprises a fixing plate fixedly connected to the top of the filtering tank, a motor is fixedly connected to the top of the fixing plate, a stirring rod is fixedly connected to the output end of the motor, and a telescopic air cylinder is fixedly connected to the interior of the stirring rod. According to the utility model, through the structural arrangement of the stirring assembly, the problems that in the prior art, air is directly introduced into the existing plankton membrane filter in the operation process, and the oxygen content in the air is limited, so that the filtering process cannot be comprehensively and thoroughly carried out, and the operation is inconvenient are solved. And the overall filtering effect of the biological filter is greatly weakened.

Description

Technical Field

[0001] This utility model relates to the field of planktonic biofilm filters, and more particularly to a compact planktonic biofilm filter. Background Technology

[0002] In the wave of industrialization and urbanization, the amount of sewage discharged has increased dramatically, the water quality has become increasingly complex, and the water pollution situation is severe. This has created an urgent need for innovation in sewage treatment technology. At that time, traditional sewage treatment processes exposed many shortcomings. For example, the activated sludge process requires aeration tanks and sedimentation tanks that occupy a large area, which is extremely limited in cities where land is scarce. In addition, the sludge production is high, and the subsequent treatment costs are high. While ordinary biological filters have the advantages of biological treatment, their treatment efficiency is difficult to meet the ever-increasing demand for sewage.

[0003] In a traditional planar biofilm filter, wastewater flows into the filter from the inlet. The filter contains specific filter media on which microorganisms attach and grow, forming a biofilm. As the wastewater flows through the biofilm, pollutants such as organic matter and nutrients like nitrogen and phosphorus diffuse through the liquid phase to the surface and interior of the biofilm. The abundant microorganisms on the biofilm then perform a series of biochemical reactions, including adsorption and oxidation, to decompose organic matter into carbon dioxide and water, and convert ammonia nitrogen into nitrates. The treated water flows out from the outlet, thus achieving wastewater purification.

[0004] Most existing planktonic biofilm filters introduce air directly into the filter during operation. However, due to the limited oxygen content in the air, the filtration process cannot be fully and thoroughly carried out, which greatly weakens the overall filtration effect of the biofilter. Therefore, a compact planktonic biofilm filter is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a compact planktonic biofilm filter, which aims to improve the problem that most existing planktonic biofilm filters directly introduce air into the filter during operation. Due to the limited oxygen content in the air, the filtration process cannot be carried out comprehensively and thoroughly, which greatly weakens the overall filtration effect of the biofilter.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a compact planktonic biofilm filter, comprising a filter tank, a stirring assembly and a rinsing assembly at the top of the filter tank, an inlet pipe on the right side wall of the filter tank, and an outlet pipe on the left side wall of the filter tank. The stirring assembly includes a fixed plate fixedly connected to the top of the filter tank, a motor fixedly connected to the top of the fixed plate, a stirring rod fixedly connected to the output end of the motor, a telescopic cylinder fixedly connected inside the stirring rod, a slider fixedly connected to the output end of the telescopic cylinder, a sliding groove opened inside the stirring rod, and a stirring blade fixedly connected to the bottom of the stirring rod.

[0007] As a further description of the above technical solution: the flushing assembly includes a water tank fixedly connected to the top of the fixed plate, a water pump fixedly connected to the side wall of the water tank, a water spray pipe fixedly connected to the output end of the water pump, aeration pipes provided on both sides of the water spray pipe, and a sewage outlet provided on the side wall of the filter tank.

[0008] As a further description of the above technical solution: an aeration pipe is fixedly connected inside the filter tank, a quartz sand support layer is provided on the top of the aeration pipe, and a biofilm filter material is provided on the top of the quartz sand support layer.

[0009] As a further description of the above technical solution: the stirring rod is rotatably connected inside the fixed plate, and the slider is slidably connected inside the stirring rod;

[0010] As a further description of the above technical solution: a stirring blade is fixedly connected to the surface of the slider;

[0011] As a further description of the above technical solution: the stirring blades on the surface of the slider are slidably connected to the inside of the stirring rod, and a filter screen is provided at the bottom of the quartz sand support layer;

[0012] As a further description of the above technical solution: the aeration pipe is fixedly connected to the bottom of the fixing plate;

[0013] As a further description of the above technical solution: the water spray pipe is fixedly connected inside the fixed plate.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, through the structural design of the stirring assembly and the cooperation of the motor, stirring rod, and stirring blades, water can be stirred efficiently, improving the uniformity of water-oxygen mixing. The telescopic cylinder can flexibly control the raising and lowering of the stirring rod to adapt to different water height requirements. The design of the slider and chute makes the stirring rod more stable during the raising and lowering process, reducing shaking and ensuring the continuous and reliable stirring operation. The overall device structure is reasonably designed, which can effectively improve the efficiency and quality of stirring operation. It solves the problem that in most existing planktonic biofilm filters, air is directly introduced into the tank during operation. Due to the limited oxygen content in the air, the filtration process cannot be carried out comprehensively and thoroughly, which greatly weakens the overall filtration effect of the biofilter.

[0016] 2. In this utility model, through the structural design of the flushing component, the water pump draws water from the water tank and sprays it through the spray pipe, which can be used to clean impurities in the filter tank. The aeration pipe can deliver air to a specific area for dual water and air flushing. The overall structure is simple and practical, and the components work together to meet diverse functional requirements, thus enhancing the practicality of a compact planktonic biofilm filter. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a compact planktonic biofilm filter proposed in this utility model;

[0018] Figure 2 This is a three-dimensional schematic diagram of a compact planktonic biofilm filter proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the stirring assembly of a compact planktonic biofilm filter proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the flushing assembly of a compact planktonic biofilm filter proposed in this utility model.

[0021] Legend:

[0022] 1. Filter tank; 2. Agitator assembly; 3. Washing assembly; 4. Inlet pipe; 5. Outlet pipe; 6. Aeration pipe; 7. Biofilm filter media; 8. Quartz sand support layer; 21. Fixing plate; 22. Motor; 23. Agitator rod; 24. Telescopic cylinder; 25. Sliding block; 26. Slide chute; 27. Agitator blade; 31. Water tank; 32. Water pump; 33. Spray pipe; 34. Aeration duct; 35. Sewage outlet. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figures 1-3 This utility model provides an embodiment of a compact planktonic biofilm filter, comprising a filter tank 1, a stirring assembly 2 at the top of the filter tank 1 to fully mix the biological filter media with oxygen, a rinsing assembly 3 at the top of the filter tank 1 to rinse the filter components inside the filter tank 1, an inlet pipe 4 on the right side wall of the filter tank 1, and an outlet pipe 5 on the left side wall of the filter tank 1. The stirring assembly 2 includes a fixing plate 21 fixedly connected to the top of the filter tank 1, a motor 22 fixedly connected to the top of the fixing plate 21, a stirring rod 23 fixedly connected to the output end of the motor 22, the motor 22 driving the stirring rod 23 to rotate, a telescopic cylinder 24 fixedly connected inside the stirring rod 23, a slider 25 fixedly connected to the output end of the telescopic cylinder 24, a groove 26 opened inside the stirring rod 23, the telescopic cylinder 24 allowing the slider 25 to slide in the groove 26 to adjust the height of the slider 25, and a stirring blade 23 fixedly connected to the bottom of the stirring rod 23. 7. The stirring rod 23 drives the stirring blades 27 on its surface to rotate and stir. An aeration pipe 6 is fixedly connected inside the filter tank 1. A quartz sand support layer 8 is set on the top of the aeration pipe 6. A biofilm filter media 7 is set on the top of the quartz sand support layer 8. The wastewater enters the quartz sand support layer 8 and the filter screen at the bottom to perform preliminary filtration. Then the wastewater enters the biofilm filter media 7. The stirring rod 23 is rotatably connected inside the fixed plate 21, so that the motor 22 can drive the stirring rod 23 to rotate. The slider 25 is slidably connected inside the stirring rod 23, so that the height can be adjusted to adapt to different water depths. The stirring blades 27 are fixedly connected to the surface of the slider 25. The slider 25 drives the stirring blades 27 to rotate. The stirring blades 27 on the surface of the slider 25 are slidably connected inside the stirring rod 23 to stir and mix the wastewater, so that water at all depths can be mixed. A filter screen is set at the bottom of the quartz sand support layer 8 to perform preliminary filtration of wastewater.

[0025] Reference Figures 1-3The rinsing assembly 3 includes a water tank 31 fixedly connected to the top of the fixed plate 21. A water pump 32 is fixedly connected to the side wall of the water tank 31. A spray pipe 33 is fixedly connected to the output end of the water pump 32. The water pump 32 draws water from the water tank 31 and delivers the water to the spray pipe 33 to spray the biofilm filter media 7 and the quartz sand support layer 8. Aeration pipes 34 are provided on both sides of the spray pipe 33. The aeration pipes 34 aerate the biofilm filter media 7 and the quartz sand support layer 8. A sewage outlet 35 is provided on the side wall of the filter tank 1. The impurities washed off are discharged from the filter tank 1 with the sewage through the sewage outlet 35. The aeration pipe 34 is fixedly connected to the bottom of the fixed plate 21. The spray pipe 33 is fixedly connected to the inside of the fixed plate 21 to perform water and air combined rinsing of the biofilm filter media 7 and the quartz sand support layer 8.

[0026] Working Principle: The working process of a compact planar biofilm filter in the above embodiment is as follows: Wastewater enters the filter tank 1 through the inlet pipe 4, and then enters the quartz sand support layer 8. The quartz sand support layer 8 and the bottom filter screen perform preliminary filtration of the wastewater. Subsequently, the wastewater enters the biofilm filter media 7. At the same time, the aeration pipe 6 and the aeration air pipe 34 supply air into the filter tank 1 to provide the necessary oxygen for the microorganisms. Simultaneously, the motor 22 drives the stirring rod 23 to rotate, and the stirring blades 27 on its surface and the stirring blades 27 on the surface of the slider 25 rotate accordingly, stirring the wastewater and filter media in the filter tank 1. The telescopic cylinder... 24 can control the height of slider 25 in chute 26, so that the stirring blades 27 on the surface of slider 25 can be adjusted. After the biofilm filter media 7 has been used for a period of time, a large number of impurities will be trapped on the surface and in the pores. At this time, the flushing component 3 starts to work. The water pump 32 draws water from the water tank 31 and delivers the water to the spray pipe 33 to spray the biofilm filter media 7 and the quartz sand support layer 8 to flush them. The aeration pipe 34 aerates the biofilm filter media 7 and the quartz sand support layer 8 to remove the impurities attached to their surface and restore the filtration performance of the biofilm filter media 7. The impurities washed off are discharged from the filter tank 1 with the sewage through the drain outlet 35.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A compact plankton membrane filter, comprising a filter basin (1), characterized in that: The filter tank (1) is equipped with a stirring assembly (2) at the top, a rinsing assembly (3) at the top, an inlet pipe (4) on the right side wall, and an outlet pipe (5) on the left side wall. The stirring assembly (2) includes a fixed plate (21) fixedly connected to the top of the filter tank (1), a motor (22) fixedly connected to the top of the fixed plate (21), a stirring rod (23) fixedly connected to the output end of the motor (22), a telescopic cylinder (24) fixedly connected inside the stirring rod (23), a slider (25) fixedly connected to the output end of the telescopic cylinder (24), a sliding groove (26) opened inside the stirring rod (23), and a stirring blade (27) fixedly connected to the bottom of the stirring rod (23).

2. A compact phytoplankton membrane filter according to claim 1, characterized in that: The flushing assembly (3) includes a water tank (31) fixedly connected to the top of the fixed plate (21), a water pump (32) fixedly connected to the side wall of the water tank (31), a water spray pipe (33) fixedly connected to the output end of the water pump (32), an aeration pipe (34) provided on both sides of the water spray pipe (33), and a sewage outlet (35) provided on the side wall of the filter tank (1).

3. A compact phytoplankton membrane filter according to claim 1, characterized in that: The filter tank (1) is fixedly connected to an aeration pipe (6), and a quartz sand support layer (8) is provided on the top of the aeration pipe (6), and a biofilm filter material (7) is provided on the top of the quartz sand support layer (8).

4. The compact phytoplankton membrane filter according to claim 1, characterized in that: The stirring rod (23) is rotatably connected inside the fixed plate (21), and the slider (25) is slidably connected inside the stirring rod (23).

5. The compact phytoplankton membrane filter according to claim 1, characterized in that: The surface of the slider (25) is fixedly connected with a stirring blade (27).

6. A compact phytoplankton membrane filter according to claim 3, characterized in that: The stirring blades (27) on the surface of the slider (25) are slidably connected to the inside of the stirring rod (23), and a filter screen is provided at the bottom of the quartz sand support layer (8).

7. A compact phytoplankton membrane filter according to claim 2, characterized in that: The aeration pipe (34) is fixedly connected to the bottom of the fixing plate (21).

8. A compact phytoplankton membrane filter according to claim 2, characterized in that: The water spray pipe (33) is fixedly connected inside the fixed plate (21).

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