Biological nitrogen and phosphorus removal sewage treatment filtering device

Abstract

The utility model discloses a biological nitrogen and phosphorus removal sewage treatment filtering device, and belongs to the technical field of sewage treatment devices. The device comprises a filtering platform, a filtering mechanism is arranged on the filtering platform, the filtering mechanism comprises a surrounding rotating wheel rotationally connected with the upper end of the filtering platform, and a surrounding cylinder is fixedly arranged on the surrounding rotating wheel; a plurality of sets of partition plates which extend in the radius direction and are used for dividing the interior of the surrounding cylinder into a plurality of cavities are fixedly arranged in the surrounding cylinder in a surrounding mode, a filter plate used for filtering sewage is fixedly arranged between every two adjacent sets of partition plates, and a cavity is formed in the filter platform; and at least two groups of adjacent filter plates are positioned above the cavity. When the filter is used, the transmission shaft is driven by the motor to rotate, and the transmission shaft drives the three groups of filter plates to rotate, so that the three groups of filter plates circularly move to sequentially filter, air-dry and maintain, and the continuity and the stability of filtering are ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater treatment devices, and in particular to a biological denitrification and phosphorus removal wastewater treatment filtration device. Background Technology

[0002] Wastewater treatment equipment is a specialized device for treating wastewater. It uses physical, chemical, and biological methods to decompose, transform, or remove harmful substances in wastewater, ensuring the treated water meets discharge standards or reuse water quality requirements. This type of equipment is widely used in the treatment of domestic sewage, hospital wastewater, and industrial wastewater, and is of great significance for protecting water resources, improving the ecological environment, and promoting sustainable economic development.

[0003] Biological nitrogen and phosphorus removal wastewater treatment primarily relies on the action of microorganisms. First, organic nitrogen in the wastewater is converted to ammonia nitrogen by ammonifying bacteria. Then, under aerobic conditions, the ammonia nitrogen is oxidized to nitrate by nitrifying bacteria. Next, in an anoxic environment, denitrifying bacteria reduce the nitrate to nitrogen gas, releasing it. Simultaneously, polyphosphate-accumulating bacteria release phosphorus under anaerobic conditions and over-absorb phosphorus under aerobic conditions, achieving phosphorus removal through the discharge of excess sludge. Finally, the treated water undergoes fine filtration to further remove suspended solids and some pollutants, ensuring that the effluent meets standards.

[0004] The shortcomings of the existing technical solutions are as follows: In the fine filtration stage of biological nitrogen and phosphorus removal wastewater treatment, although it can effectively remove suspended solids and some pollutants, there are still some deficiencies. In particular, the filter plates are prone to clogging after long-term filtration and require regular replacement and maintenance. The replacement and maintenance process is often cumbersome and complicated, which not only increases operating costs but may also affect the continuity and stability of wastewater treatment. Utility Model Content

[0005] This invention provides a biological denitrification and phosphorus removal wastewater treatment filtration device, which can solve the problem that the filter plates in the existing biological denitrification and phosphorus removal wastewater treatment fine filtration technology are prone to clogging after long-term filtration and require regular replacement and maintenance, and the replacement and maintenance process of the currently used filter plates is relatively cumbersome and complicated.

[0006] A biological nitrogen and phosphorus removal wastewater treatment filtration device includes a filtration platform with a filtration mechanism. The filtration mechanism includes a rotatable wheel connected to the upper end of the filtration platform. A circumferential cylinder is fixedly mounted on the rotatable wheel. Multiple sets of partitions extending radially and dividing the interior of the circumferential cylinder into multiple chambers are fixedly mounted inside the circumferential cylinder. A filter plate for filtering wastewater is fixedly mounted between each pair of adjacent sets of partitions. A cavity is formed inside the filtration platform, with at least two adjacent sets of filter plates located above the cavity. A water receiving assembly for receiving filtered water and a drive mechanism for driving the filter plates to rotate are placed inside the cavity.

[0007] As a further embodiment of this utility model: each group of filter plates is inclinedly arranged between two adjacent groups of partitions, all the filter plates form a cone shape with each other, and the lower end of each group of filter plates is located above the surrounding rotating wheel.

[0008] As a further embodiment of this utility model: an annular guide plate is concentrically fixed at the bottom of the inner side of the surrounding wheel, and the bottom of the annular guide plate is wavy.

[0009] As a further embodiment of this utility model: multiple sets of maintenance ports are provided around the side of the surrounding cylinder to facilitate the maintenance of the filter plates. The position of each set of maintenance ports corresponds to the corresponding filter plate, and an installation plate can be detachably installed on each set of maintenance ports.

[0010] As a further embodiment of this utility model: each set of mounting plates includes an outer baffle that can be detachably installed at the corresponding maintenance port position. The outer baffle is adapted to the shape of the edge of the surrounding cylinder. A positioning plate adapted to the size of the maintenance port is fixedly provided on the side of the outer baffle near the center of the surrounding cylinder.

[0011] As a further embodiment of this utility model: each set of outer baffles is connected to the surrounding cylinder by bolts.

[0012] As a further embodiment of this utility model: the driving mechanism includes a motor disposed inside the filter platform, and a transmission shaft is fixedly disposed at the output end of the motor. Each set of partitions is fixedly connected to the transmission shaft on the side near the center of the surrounding cylinder.

[0013] As a further embodiment of this utility model: the water receiving component includes a water tank, and the shape of the outer edge of the water tank is adapted to the shape of the edge surrounding the rotating wheel.

[0014] As a further embodiment of this utility model: the partition is provided in three sets, and the three sets of partitions divide the internal space of the surrounding cylinder into three chambers.

[0015] As a further embodiment of this utility model, a rubber pad is fixedly provided on the surface of the surrounding cylinder that contacts the outer baffle.

[0016] The beneficial effects of this utility model are:

[0017] 1. This utility model features three sets of chambers inside the surrounding cylinder, each operating in a different state during use. Specifically, while the first set of chambers is in filtration mode, the second set of chambers is drying the filter plates to remove moisture; simultaneously, the filter plates in the third set of chambers are undergoing necessary maintenance by the operator. A motor drives a transmission shaft to rotate, which in turn rotates the three sets of filter plates, causing them to circulate and sequentially perform filtration, drying, and maintenance operations, thus ensuring the continuity and stability of the filtration process.

[0018] In use, when wastewater is discharged into a set of chambers from the wastewater discharge end, the wastewater flows upward along the inclined surface of the filter plate, where it filters the wastewater. The inclined surface of the filter plate increases the contact area with the wastewater, thereby improving the filtration efficiency. The filtered water flows along the inclined surface at the bottom of the filter plate towards the guide plate. The protrusion at the bottom of the guide plate guides the filtered water, causing it to gather and facilitating its collection. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of a biological denitrification and phosphorus removal wastewater treatment filtration device provided by this utility model during maintenance;

[0020] Figure 2 A schematic diagram of the overall longitudinal section structure of a biological denitrification and phosphorus removal wastewater treatment filtration device provided by this utility model;

[0021] Figure 3 This is a top view schematic diagram of the overall structure of a biological denitrification and phosphorus removal wastewater treatment filtration device provided by this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Filtering platform; 2. Drive mechanism; 201. Motor; 202. Drive shaft; 3. Filtering mechanism; 301. Circulating wheel; 302. Circulating cylinder; 303. Baffle; 304. Filter plate; 305. Mounting plate; 3051. Outer baffle; 3052. Positioning plate; 306. Annular diversion plate; 307. Maintenance port; 4. Water receiving assembly. Detailed Implementation

[0024] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0025] like Figures 1 to 3 As shown in the figure, the biological nitrogen and phosphorus removal wastewater treatment filtration device provided in this embodiment of the utility model includes a filtration platform 1, a filtration mechanism 3 is provided on the filtration platform 1, and the filtration mechanism 3 includes a circumferential rotating wheel 301 rotatably connected to the upper end of the filtration platform 1, as shown in the figure. Figure 2 As shown, a surrounding cylinder 302 is fixedly mounted on the rotating wheel 301. Multiple sets of partitions 303, extending radially, are fixedly mounted inside the surrounding cylinder 302 to divide its interior into multiple chambers. A filter plate 304 for filtering wastewater is fixedly mounted between each pair of adjacent sets of partitions 303. Each set of filter plates 304 is inclined between adjacent sets of partitions 303, forming a cone shape. The lower end of each set of filter plates 304 is located above the rotating wheel 301. In this embodiment, three sets of partitions 303 are provided, dividing the interior space of the surrounding cylinder 302 into three chambers. The wastewater discharge end is located above one set of chambers. During use, wastewater is discharged from the wastewater discharge end into one set of chambers. The wastewater flows upwards along the inclined surface of the filter plate 304, which filters the wastewater. The inclined surface of the filter plate 304 increases the contact area with the wastewater, thereby improving the filtration efficiency.

[0026] An annular guide plate 306 is concentrically fixed at the bottom inner side of the surrounding wheel 301, such as Figure 2 As shown, the bottom of the annular diversion plate 306 is wavy. The filtered water (filtered wastewater) flows along the slope of the bottom of the filter plate 304 to the diversion plate. The diversion plate guides and collects the filtered water, making it easier to collect.

[0027] The filter platform 1 has an internal cavity, inside which is placed a water receiving component 4 for receiving filtered water and a drive mechanism 2 for driving the filter plate 304 to rotate.

[0028] The water receiving component 4 may include a water tank, the outer edge of which is adapted to the edge of the surrounding wheel 301. A water supply pipe (not shown in the figure) is connected to one side of the water tank. The water tank is responsible for collecting filtered water and periodically pumping the filtered water to the next processing step.

[0029] The drive mechanism 2 includes a motor 201 installed inside the filter platform 1. A drive shaft 202 is fixedly installed at the output end of the motor 201. Each set of partitions 303 is fixedly connected to the drive shaft 202 on the side near the center of the surrounding cylinder 302. In use, the motor 201 drives the drive shaft 202 to rotate, which in turn drives the partitions 303, the surrounding cylinder 302, the filter plates 304, and the surrounding wheel 301 to rotate, thereby enabling the switching of the filter plates 304 and improving the continuity and stability of filtration.

[0030] The three chambers located inside the surrounding cylinder 302 operate in different states during use. Specifically, while the first chamber is in filtration mode, the second chamber is drying the filter plates 304 to remove moisture; a water tank is located below the first and second chambers. Simultaneously, the filter plates 304 in the third chamber undergo necessary maintenance by personnel. The motor drives the three filter plates 304 in a sequential cycle, performing filtration, drying, and maintenance operations to ensure the continuity and stability of the filtration process.

[0031] Multiple maintenance ports 307 are provided around the side of the surrounding cylinder 302 for easy maintenance of the filter plates 304. Each maintenance port 307 corresponds to a specific filter plate 304, and a mounting plate 305 can be detachably installed on each maintenance port 307. Each mounting plate 305 includes an outer baffle 3051 bolted to the corresponding maintenance port 307. The outer baffle 3051 is adapted to the edge shape of the surrounding cylinder 302. A positioning plate 3052, adapted to the size of the maintenance port 307, is fixedly installed on the side of the outer baffle 3051 near the center of the surrounding cylinder 302. A rubber pad is fixedly installed on the surface of the surrounding cylinder 302 that contacts the outer baffle 3051. The rubber pad can adapt to the shape of the gap between the surrounding cylinder 302 and the outer baffle 3051, thereby preventing sewage from overflowing from the gap between the surrounding cylinder 302 and the outer baffle 3051.

[0032] Working Principle: The three chambers located inside the surrounding cylinder 302 operate in different states during use. Specifically, while the first chamber is in filtration mode, the second chamber is drying the filter plates 304 to remove moisture; simultaneously, the filter plates 304 in the third chamber are undergoing necessary maintenance by personnel. The motor 201 drives the drive shaft 202 to rotate, which in turn rotates the three filter plates 304, causing them to circulate and sequentially perform filtration, drying, and maintenance operations, thus ensuring the continuity and stability of the filtration process.

[0033] When wastewater is discharged into a set of chambers from the wastewater discharge end, the wastewater flows upward along the inclined surface of the filter plate 304. The filter plate 304 filters the wastewater, and the inclined surface of the filter plate 304 increases the contact area with the wastewater, thereby improving the filtration efficiency. The filtered water flows along the inclined surface at the bottom of the filter plate 304 towards the guide plate. The protrusion at the bottom of the guide plate guides the filtered water, causing it to gather and facilitating its collection.

[0034] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A biological nitrogen and phosphorus removal wastewater treatment filtration device, comprising a filtration platform (1), characterized in that, The filtration platform (1) is provided with a filtration mechanism (3). The filtration mechanism (3) includes a rotatable rotating wheel (301) rotatably connected to the upper end of the filtration platform (1). A rotatable cylinder (302) is fixedly provided on the rotatable wheel (301). A plurality of partitions (303) extending radially are fixedly provided inside the rotatable cylinder (302) to divide the interior of the rotatable cylinder (302) into a plurality of chambers. A filter plate (304) for filtering sewage is fixedly provided between each pair of adjacent partitions (303). A cavity is opened inside the filtration platform (1). At least two pairs of adjacent filter plates (304) are located above the cavity. A water receiving assembly (4) for receiving filtered water and a drive mechanism (2) for driving the filter plates (304) to rotate are placed inside the cavity.

2. The biological nitrogen and phosphorus removal wastewater treatment filtration device as described in claim 1, characterized in that, Each set of filter plates (304) is inclined between two adjacent sets of partitions (303), and all the filter plates (304) form a cone shape with each other. The lower end of each set of filter plates (304) is located above the surrounding wheel (301).

3. The biological nitrogen and phosphorus removal wastewater treatment filtration device as described in claim 2, characterized in that, An annular flow guide plate (306) is concentrically fixed at the bottom of the inner side of the surrounding wheel (301), and the bottom of the annular flow guide plate (306) is wavy.

4. A biological denitrification and phosphorus removal wastewater treatment filtration device as described in claim 2 or 3, characterized in that, The side of the surrounding cylinder (302) has multiple sets of maintenance ports (307) for easy maintenance of the filter plate (304). Each set of maintenance ports (307) is located corresponding to the corresponding filter plate (304), and each set of maintenance ports (307) can be detachably installed with an installation plate (305).

5. The biological nitrogen and phosphorus removal wastewater treatment filtration device as described in claim 4, characterized in that, Each set of mounting plates (305) includes an outer baffle (3051) that can be detachably installed at the corresponding maintenance port (307). The outer baffle (3051) is adapted to the edge shape of the surrounding cylinder (302). A positioning plate (3052) adapted to the size of the maintenance port (307) is fixedly provided on the side of the outer baffle (3051) near the center of the surrounding cylinder (302).

6. The biological nitrogen and phosphorus removal wastewater treatment filtration device as described in claim 5, characterized in that, Each set of outer baffles (3051) is connected to the surrounding cylinder (302) by bolts.

7. The biological nitrogen and phosphorus removal wastewater treatment filtration device as described in claim 3, characterized in that, The drive mechanism (2) includes a motor (201) installed inside the filter platform (1). A drive shaft (202) is fixedly installed at the output end of the motor (201). Each set of partitions (303) is fixedly connected to the drive shaft (202) on the side near the center of the surrounding cylinder (302).

8. The biological nitrogen and phosphorus removal wastewater treatment filtration device as described in claim 3, characterized in that, The water receiving assembly (4) includes a water tank, the outer edge shape of which is adapted to the edge shape of the surrounding wheel (301).

9. The biological nitrogen and phosphorus removal wastewater treatment filtration device as described in claim 3, characterized in that, The partition (303) is provided in three sets, and the three sets of partitions (303) divide the internal space of the surrounding cylinder (302) into three chambers.

10. The biological nitrogen and phosphorus removal wastewater treatment filtration device as described in claim 6, characterized in that, A rubber pad is fixedly provided on the surface of the surrounding cylinder (302) that contacts the outer baffle (3051).

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