A denitrification and dephosphorization sewage purification device

Abstract

The utility model relates to sewage purification equipment technical field discloses a kind of denitrification and phosphorus removal sewage purification equipment, including purification tank, recess is opened in the top end of water inlet pipe, the top end of water inlet pipe is fixedly connected with flange, the inside of recess is equipped with filter assembly, stirring assembly is equipped between the top end to bottom end of tank cover, the top end of tank cover is equipped with transmission assembly for driving stirring assembly rotation, the utility model is equipped with filter assembly, sewage can be filtered on filter assembly before entering purification tank inside by the pipeline of output sewage, avoid impurity into purification tank and be entangled on stirring assembly, cause mechanical failure, stirring assembly can evenly release liquid medicine of removing nitrogen and phosphorus by transmission assembly driving stirring assembly rotation simultaneously, liquid medicine is first contacted with sewage in large area in the process of releasing by the setting of stirring assembly, after stirring assembly is driven to rotate by transmission assembly, improve stirring efficiency and stirring effect.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater purification equipment, specifically to a wastewater purification equipment for nitrogen and phosphorus removal. Background Technology

[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, medical care, and catering, and is increasingly becoming a part of ordinary people's daily lives. In the process of using domestic wastewater purification equipment, in addition to filtering and removing impurities and odors from wastewater, harmful components such as nitrogen and phosphorus contained in the wastewater also need to be removed.

[0003] Existing patent application CN202120883942.4 discloses a new rural domestic sewage denitrification and phosphorus removal purification device, including a purification tower and a discharge port. The discharge port is fixedly installed on the lower end face of the purification tower, and a servo motor is fixedly installed on the upper end face of the purification tower. A connecting shaft is fixedly installed on the output end of the servo motor. The lower end of the connecting shaft passes through the upper end face of the purification tower and extends into the purification tower. Three sets of stirring mechanisms are symmetrically fixedly installed on the side wall of the connecting shaft, and each set of stirring mechanisms includes two stirring blades. In this invention, when the servo motor is started, the servo motor drives the connecting shaft to rotate through its output end, which in turn drives the stirring blades to rotate. The stirring blades drive the rotating rod and the stirring rod to rotate, continuously stirring the sewage, so that the sewage, purification reagent, and precipitation reagent are thoroughly mixed, and harmful components such as nitrogen and phosphorus in the sewage are effectively removed and purified, avoiding direct pollution of the source by the discharged sewage.

[0004] The above-mentioned solution has the following problems during implementation: the stirring efficiency of a single stirring rod is low and the effect is poor. At the same time, it is not convenient to filter impurities in the sewage before the sewage is discharged into the purification tower. Impurities entering the purification tower are prone to getting tangled on the stirring rod, causing mechanical failure. Therefore, a denitrification and phosphorus removal sewage purification device is needed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a wastewater purification device for nitrogen and phosphorus removal, which solves the problems of low stirring efficiency and poor effect of the existing technology using a single stirring rod, and the inconvenience of filtering impurities in the wastewater before it is discharged into the purification tower. Impurities entering the purification tower are prone to getting tangled on the stirring rod, causing mechanical failure.

[0006] This utility model provides the following technical solution: a wastewater purification device for nitrogen and phosphorus removal, including a purification tank, a support leg fixedly connected to the bottom end of the purification tank, a water outlet pipe fixedly connected to the bottom end of the purification tank, a tank cover installed on the top end of the purification tank, a water inlet pipe fixedly connected to the top end of the tank cover, a groove formed at the top end of the water inlet pipe, a flange fixedly connected to the top end of the water inlet pipe, a filter assembly provided inside the groove, a stirring assembly provided between the top and bottom ends of the tank cover, and a transmission assembly for driving the stirring assembly to rotate at the top end of the tank cover.

[0007] As a preferred embodiment of the above technical solution, the filter assembly includes a filter screen, the outer end of which is fixedly connected to a fixing ring, and the inner side of the fixing ring is fixedly connected to a plurality of protrusions.

[0008] As a preferred embodiment of the above technical solution, the retaining ring is threadedly connected within the groove.

[0009] As a preferred embodiment of the above technical solution, the stirring assembly includes a liquid inlet pipe, which is rotatably disposed in the middle of the tank cover. Several extension plates are fixedly connected to the side end of the liquid inlet pipe, and each extension plate has a through hole at its side end that communicates with the inside of the liquid inlet pipe.

[0010] As a preferred embodiment of the above technical solution, a number of side plates are fixedly connected to the outer side end of the liquid inlet pipe, a number of vertical plates are fixedly connected between the top side plate and the bottom side plate, and a gear is fixedly connected to the outer end of the liquid inlet pipe.

[0011] As a preferred embodiment of the above technical solution, the transmission assembly includes a bracket, which is fixedly connected to the top of the box cover. A motor is fixedly connected to the top of the bracket, and a rotating rod is installed at the output end of the motor. The bottom end of the rotating rod is rotatably disposed at the top of the box cover, and a gear is fixedly connected to the outer end of the rotating rod.

[0012] As a preferred embodiment of the above technical solution, the second gear meshes with the first gear.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This invention, through the design of the filter assembly, allows impurities to be filtered onto the filter assembly before the wastewater enters the purification tank through the wastewater output pipe. This prevents impurities from entering the purification tank and becoming entangled on the stirring assembly, causing mechanical failure. While the stirring assembly is driven to rotate by the transmission assembly, it can evenly release the nitrogen and phosphorus removal solution. Due to the design of the stirring assembly, the solution first comes into contact with the wastewater over a large area during the release process. After the stirring assembly is driven to rotate by the transmission assembly, the stirring efficiency and effect are improved. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the overall structure of a nitrogen and phosphorus removal wastewater purification device. Figure 2 This is a schematic diagram of the exploded structure of a nitrogen and phosphorus removal wastewater purification device. Figure 3 A three-dimensional structural diagram of a wastewater purification equipment for nitrogen and phosphorus removal; Figure 4 This is a schematic diagram of the internal structure of a wastewater purification device for nitrogen and phosphorus removal.

[0015] In the diagram: 1. Purification box; 101. Support leg; 2. Box cover; 201. Water inlet pipe; 202. Groove; 203. Flange; 3. Filter assembly; 301. Filter screen; 302. Fixing ring; 303. Protrusion; 4. Stirring assembly; 401. Liquid inlet pipe; 402. Extension plate; 403. Through hole; 404. Side plate; 405. Vertical plate; 406. Gear one; 5. Transmission assembly; 501. Bracket; 502. Motor; 503. Rotating rod; 504. Gear two. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] like Figures 1-4 As shown, this utility model provides a technical solution: a wastewater purification device for nitrogen and phosphorus removal, including a purification tank 1. A support leg 101 is fixedly connected to the bottom of the purification tank 1, and a water outlet pipe is fixedly connected to the bottom of the purification tank 1. A tank cover 2 is installed on the top of the purification tank 1, and a water inlet pipe 201 is fixedly connected to the top of the tank cover 2. A groove 202 is formed at the top of the water inlet pipe 201, and a flange 203 is fixedly connected to the top of the water inlet pipe 201. A filter assembly 3 is provided inside the groove 202. A stirring assembly 4 is provided between the top and bottom of the tank cover 2, and a [missing information - likely a device or component] is provided at the top of the tank cover 2. The transmission component 5, which drives the stirring component 4 to rotate, is configured with the filter component 3. Before the sewage enters the purification tank 1 through the sewage outlet pipe, impurities are filtered onto the filter component 3, preventing impurities from entering the purification tank 1 and getting tangled on the stirring component 4, causing mechanical failure. While the transmission component 5 drives the stirring component 4 to rotate, the stirring component 4 can evenly release the nitrogen and phosphorus removal solution. Due to the configuration of the stirring component 4, the solution first comes into contact with the sewage over a large area during the release process. After the transmission component 5 drives the stirring component 4 to rotate, the stirring efficiency and stirring effect are improved.

[0018] As one implementation method in this embodiment, such as Figure 2As shown, the filter assembly 3 includes a filter screen 301. A fixing ring 302 is fixedly connected to the outer end of the filter screen 301. Several protrusions 303 are fixedly connected to the inner side of the fixing ring 302. The fixing ring 302 is threaded into the groove 202. In practice, due to the setting of the filter screen 301, before the sewage enters the purification tank 1 through the sewage output pipe, impurities can be filtered onto the filter screen 301, preventing impurities from entering the purification tank 1 and getting tangled on the stirring assembly 4, causing mechanical failure. The sewage output pipe can be disassembled through the flange 203, and the protrusions 303 can be moved to remove the filter screen 301 from the water inlet pipe 201, thereby facilitating the cleaning of the filter screen 301.

[0019] As one implementation method in this embodiment, such as Figure 3 As shown, the stirring assembly 4 includes an inlet pipe 401, which is rotatably disposed in the middle of the tank cover 2. Several extension plates 402 are fixedly connected to the side end of the inlet pipe 401. Each extension plate 402 has a through hole 403 on its side end, which communicates with the inside of the inlet pipe 401. Several side plates 404 are fixedly connected to the outer side end of the inlet pipe 401. Several vertical plates 405 are fixedly connected between the top side plate 404 and the bottom side plate 404. A gear 406 is fixedly connected to the outer end of the inlet pipe 401. In practice, the inlet pipe 401 is connected to the chemical delivery pipe through a sealed bearing. At this time, the chemical delivery pipe delivers the nitrogen and phosphorus removal agent from the inlet pipe 401 to each extension plate 402. The chemical solution flows evenly into the purification tank 1 through each through hole 403 and comes into contact with the sewage over a large area, thereby achieving faster mixing and contact between the sewage and the chemical solution, which facilitates faster nitrogen and phosphorus removal from the sewage.

[0020] As one implementation method in this embodiment, such as Figure 3 As shown, the transmission assembly 5 includes a bracket 501, which is fixedly connected to the top of the cover 2. A motor 502 is fixedly connected to the top of the bracket 501. A rotating rod 503 is installed at the output end of the motor 502. The bottom end of the rotating rod 503 is rotatably set at the top of the cover 2. A gear 504 is fixedly connected to the outer end of the rotating rod 503. The gear 504 meshes with the gear 406. In practice, the rotating rod 503 and the gear 504 are driven to rotate by starting the motor 502. At this time, the gear 504 meshes with the gear 406 and drives the inlet pipe 401 to rotate. Due to the setting of the sealed bearing, the inlet pipe 401 does not affect the delivery of the medicine while rotating. At this time, the medicine can be delivered while stirring. The delivered medicine can be more evenly contacted with the sewage through the evenly set extension plates 402. This facilitates the removal of nitrogen and phosphorus from the sewage and improves the overall stirring efficiency and stirring effect of the stirring assembly 4.

[0021] Working principle: The inlet pipe 401 is connected to the chemical delivery pipe via a sealed bearing. The chemical delivery pipe then delivers the nitrogen and phosphorus removal agent from the inlet pipe 401 into each extension plate 402. The chemical solution then flows evenly through each through-hole 403 into the purification tank 1, making extensive contact with the wastewater. The starting motor 502 drives the rotating rod 503 and gear 504 to rotate. Gear 504 meshes with gear 406, driving the inlet pipe 401 to rotate. Due to the sealed bearing, the rotation of the inlet pipe 401 does not affect the delivery of the chemical solution, allowing for simultaneous stirring and delivery. The liquid medicine is delivered and can be more evenly contacted with the sewage through the evenly arranged extension plates 402. This facilitates the removal of nitrogen and phosphorus from the sewage and improves the overall stirring efficiency and effect of the stirring assembly 4. At the same time, before the sewage enters the purification tank 1, the filter screen 301 can filter impurities onto the filter screen 301, preventing impurities from entering the purification tank 1 and getting tangled on the stirring rod, causing mechanical failure. The sewage outlet pipe can be disassembled through the flange 203, and the filter screen 301 can be removed from the inlet pipe 201 by moving the protrusion 303, which makes it easy to clean the filter screen 301.

[0022] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A wastewater purification device for nitrogen and phosphorus removal, comprising a purification tank (1), wherein a support leg (101) is fixedly connected to the bottom end of the purification tank (1), a water outlet pipe is fixedly connected to the bottom end of the purification tank (1), a tank cover (2) is installed on the top end of the purification tank (1), and a water inlet pipe (201) is fixedly connected to the top end of the tank cover (2), characterized in that: The top end of the water inlet pipe (201) is provided with a groove (202), and the top end of the water inlet pipe (201) is fixedly connected with a flange (203). The inside of the groove (202) is provided with a filter assembly (3). The top end of the box cover (2) is provided with a stirring assembly (4), and the top end of the box cover (2) is provided with a transmission assembly (5) for driving the stirring assembly (4) to rotate. The filter assembly (3) includes a filter screen (301), and a fixing ring (302) is fixedly connected to the outer end of the filter screen (301). A plurality of protrusions (303) are fixedly connected to the inner side of the fixing ring (302). The stirring assembly (4) includes an inlet pipe (401), which is rotatably disposed in the middle of the cover (2). Several extension plates (402) are fixedly connected to the side end of the inlet pipe (401), and each extension plate (402) has a through hole (403) on its side end that communicates with the inside of the inlet pipe (401).

2. The wastewater purification equipment for nitrogen and phosphorus removal according to claim 1, characterized in that: The retaining ring (302) is threaded into the groove (202).

3. The wastewater purification equipment for nitrogen and phosphorus removal according to claim 1, characterized in that: The outer side of the liquid inlet pipe (401) is fixedly connected to several side plates (404), and several vertical plates (405) are fixedly connected between the top side plate (404) and the bottom side plate (404). The outer end of the liquid inlet pipe (401) is fixedly connected to a gear (406).

4. The wastewater purification equipment for nitrogen and phosphorus removal according to claim 3, characterized in that: The transmission assembly (5) includes a bracket (501), which is fixedly connected to the top of the cover (2). A motor (502) is fixedly connected to the top of the bracket (501). A rotating rod (503) is installed at the output end of the motor (502). The bottom end of the rotating rod (503) is rotatably set at the top of the cover (2). A gear (504) is fixedly connected to the outer end of the rotating rod (503).

5. The wastewater purification equipment for nitrogen and phosphorus removal according to claim 4, characterized in that: The second gear (504) meshes with the first gear (406).

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