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CN-121971899-A - Denitrification and dephosphorization device for advanced treatment of tail water of sewage treatment plant

CN121971899ACN 121971899 ACN121971899 ACN 121971899ACN-121971899-A

Abstract

The invention relates to the technical field of wastewater treatment, in particular to a denitrification and dephosphorization device for advanced treatment of tail water of a sewage treatment plant, which comprises a reaction tank, a locking mechanism, a collecting mechanism, a feeding mechanism and an air blowing mechanism. The invention locks the tail water in the reaction tank completely through the lock plug, ensures that the tail water entering the filter cavity for filtering can be controlled, prevents excessive sediment generated by excessively large instantaneous entering water quantity, avoids the phenomenon that the filter plate is blocked and cannot be filtered, ensures that the sediment can be completely fed into the collection box when the collection box rotates through the rotation of the conveyor belt around two guide rollers, prevents the sediment from remaining in the collection channel, and conveys high-pressure air flow to the air guide box and the air guide ring through the compressor, namely, can respectively convey the high-pressure air flow to the three air blowing boxes, so that the sediment remaining in the holes of the filter plate is blown and cleaned through the air blowing boxes, the sediment is prevented from remaining, and the filter plate is further prevented from being blocked.

Inventors

  • WANG HAIBIN
  • SHAO CHANGTAO

Assignees

  • 江苏莲洋港环保科技有限公司

Dates

Publication Date
20260505
Application Date
20260130

Claims (8)

  1. 1. The utility model provides a sewage treatment plant tail water advanced treatment's nitrogen and phosphorus removal device, its characterized in that, including retort (1), the bottom intercommunication of retort (1) has filter chamber (2), and the bottom intercommunication of filter chamber (2) has collecting chamber (3), and the inside rotation of retort (1) is connected with pivot (4), and the even fixedly connected with of surface of pivot (4) three (mixing) shaft (5), the top fixedly connected with motor (6) of pivot (4), motor (6) sliding connection are in the top of retort (1), still include: The locking mechanism (7) is connected to the inside of the reaction tank (1) in a sliding manner, and the locking mechanism (7) is used for controlling the communication between the reaction tank (1) and the filter cavity (2); The collecting mechanism (8) is rotationally connected to the inside of the filter cavity (2), and the collecting cavity (3) is used for collecting and removing sediment deposited in the filter cavity (2); the feeding mechanism (9), the feeding mechanism (9) is rotatably connected to the inside of the collecting mechanism (8), and the feeding mechanism (9) is used for feeding all the sediment into the inside of the collecting mechanism (8); And the blowing mechanism (10) is rotationally connected to the bottom of the filter cavity (2), and the blowing mechanism (10) is used for blowing and cleaning sediment remained in the filter cavity (2).
  2. 2. The denitrification and dephosphorization device for advanced wastewater treatment of a wastewater treatment plant according to claim 1, wherein the locking mechanism (7) comprises a lock plug (701) and two telescopic rods (702), the two telescopic rods (702) are symmetrically and fixedly connected to the top of the reaction tank (1), the two telescopic rods (702) are symmetrically positioned on two sides of the motor (6), the output ends of the two telescopic rods (702) are fixedly connected with a connecting frame (11), the middle part of the connecting frame (11) is fixedly sleeved with the motor (6), the bottom end of the rotating shaft (4) is fixedly connected to the top of the lock plug (701), and the lock plug (701) is slidably connected between the reaction tank (1) and the filter cavity (2).
  3. 3. The denitrification and dephosphorization device for advanced wastewater treatment of a wastewater treatment plant according to claim 2, wherein the collection mechanism (8) comprises a sleeve (801), three collection boxes (802) and a spiral column (803), the sleeve (801) is rotationally connected to the inside of the reaction tank (1), the three collection boxes (802) are circumferentially and uniformly fixedly connected to the surface of the sleeve (801), a filter plate (12) is arranged at the bottom of the filter cavity (2), the collection boxes (802) are slidingly connected to the upper surface of the filter plate (12), the spiral column (803) is rotationally connected to the inside of the collection boxes (802), a disk tooth (13) is arranged in the inside of the sleeve (801), one end of the spiral column (803) penetrates into the inside of the sleeve (801), one end of the spiral column (803) penetrating into the inside of the sleeve (801) is fixedly connected with a conical tooth (14), the conical tooth (14) is meshed with the disk tooth (13), and a filter screen (16) is embedded in the bottom of the collection boxes (802).
  4. 4. The denitrification and dephosphorization device for advanced wastewater treatment of a wastewater treatment plant according to claim 3, wherein the feeding mechanism (9) comprises a conveying belt (901) and two guide rollers (902), a collecting channel (15) is formed in one side of the collecting box (802), the two guide rollers (902) are rotationally connected to the inside of the collecting channel (15), the conveying belt (901) is rotationally connected with the inside of the collecting channel (15) through the guide rollers (902), one end of one guide roller (902) is fixedly connected with a rotating wheel (17), one end of a spiral column (803) far away from a bevel gear (14) is fixedly connected with a guide wheel (18), the guide wheel (18) and the rotating wheel (17) are rotationally connected to the inside of the collecting box (802), and the guide wheel (18) is in transmission connection with the rotating wheel (17) through a belt.
  5. 5. The nitrogen and phosphorus removal device for advanced wastewater treatment of a wastewater treatment plant according to claim 1, wherein the air blowing mechanism (10) comprises three air blowing boxes (101), a compressor (102) and an air guide box (103), the compressor (102) is arranged in the sleeve (801), the air guide box (103) is fixedly connected to the top of the compressor (102), the disk teeth (13) are fixedly connected to the upper part of the air guide box (103), the three air blowing boxes (101) are uniformly and fixedly connected to the surface of the sleeve (801) in a circumferential manner, the air blowing boxes (101) are rotatably connected to the bottom of the filter plate (12), one end, close to the sleeve (801), of each air blowing box (101) is communicated with a guide pipe (19), the other end of each guide pipe (19) penetrates into the sleeve (801) and is communicated with an air guide ring (20), and the air guide ring (20) is rotatably connected with the air guide box (103).
  6. 6. The denitrification and dephosphorization device for advanced treatment of tail water of sewage treatment plant according to claim 2, wherein the bottom of the lock plug (701) is fixedly connected with a connector (21), the top of the sleeve (801) is provided with a connecting groove (22), the connector (21) is spliced with the connecting groove (22), the top of the sleeve (801) is fixedly connected with a blocking ring (23), the bottom of the lock plug (701) is provided with a groove (24), and the blocking ring (23) is spliced with the groove (24).
  7. 7. The denitrification and dephosphorization device for advanced wastewater treatment of a wastewater treatment plant according to claim 3, wherein the bottom of the sleeve (801) is rotatably connected with a bottom frame (25), the bottom frame (25) is fixedly connected to the bottom of the inner wall of the collection cavity (3), the bottom of the compressor (102) is fixedly connected with a connecting column (26), the bottom end of the connecting column (26) is penetrated with the sleeve (801), and one end of the connecting column (26) penetrating with the sleeve (801) is fixedly connected with the bottom frame (25).
  8. 8. The denitrification and dephosphorization device for advanced wastewater treatment of a wastewater treatment plant according to claim 5, wherein sealing strips (27) are fixedly connected to the upper surface and the lower surface of the air guide ring (20), two sealing grooves (28) are formed in the air guide box (103), the sealing strips (27) are in sliding connection with the sealing grooves (28), and diameters of the disc teeth (13) and the air guide ring (20) are smaller than the inner diameter of the sleeve (801).

Description

Denitrification and dephosphorization device for advanced treatment of tail water of sewage treatment plant Technical Field The invention relates to the technical field of wastewater treatment, in particular to a denitrification and dephosphorization device for advanced treatment of tail water of a sewage treatment plant. Background The tail water formed by domestic sewage contains a large amount of nitrogen and phosphorus in the final advanced treatment, the direct discharge of sewage containing nitrogen and phosphorus can lead to the rapid increase of the nitrogen and phosphorus content in natural water, the blue algae and green algae in the water are propagated in a large amount, the water is anoxic and produces toxins, and the water quality is deteriorated, so the tail water in a sewage treatment plant is discharged after denitrification and dephosphorization are needed. The existing denitrification and dephosphorization treatment for the tail water is generally to complete denitrification treatment in an aerobic environment through a biological method, then to add corresponding ferric salt or aluminum salt into the tail water to form phosphate precipitation so as to achieve the dephosphorization work for the tail water, but in specific work, as the tail water amount is relatively large, precipitation can be continuously generated in the whole process and the treated tail water needs to be continuously discharged, in the process, the reaction is continuously generated while the filtration and the discharge are needed, the incomplete reaction is very easy to occur under the condition of relatively large quantity, and the filtration mechanism is blocked by the sediment and can not be filtered due to excessive sediment, so that the treatment work of the whole tail water is influenced, and the smooth proceeding of the work is influenced. Disclosure of Invention The invention aims to solve the problems in the background technology, and provides a denitrification and dephosphorization device for advanced treatment of tail water of a sewage treatment plant. In order to achieve the above purpose, the present invention adopts the following technical scheme: The utility model provides a sewage treatment plant tail water advanced treatment's nitrogen and phosphorus removal device, includes the retort, the bottom intercommunication of retort has the filter chamber, and the bottom intercommunication of filter chamber has the collecting chamber, and the inside of retort is rotated and is connected with the pivot, and the even fixedly connected with (mixing) shaft in surface of pivot, the top fixedly connected with motor of pivot, motor sliding connection in the top of retort still includes: the locking mechanism is connected to the inside of the reaction tank in a sliding way and is used for controlling the communication between the reaction tank and the filter cavity; the collecting mechanism is rotationally connected to the inside of the filter cavity, and the collecting cavity is used for collecting and removing sediment deposited in the filter cavity; The feeding mechanism is rotationally connected to the inside of the collecting mechanism and is used for feeding all the sediment into the inside of the collecting mechanism; and the blowing mechanism is rotationally connected to the bottom of the filter cavity and is used for blowing and cleaning the sediment remained in the filter cavity. In the denitrification and dephosphorization device for advanced treatment of tail water of sewage treatment plant, the locking mechanism comprises a lock plug and two telescopic rods, the two telescopic rods are symmetrically and fixedly connected to the top of the reaction tank, the two telescopic rods are symmetrically positioned on two sides of the motor, the output ends of the two telescopic rods are fixedly connected with a connecting frame, the middle part of the connecting frame is fixedly sleeved with the motor, the bottom end of the rotating shaft is fixedly connected to the top of the lock plug, and the lock plug is slidably connected between the reaction tank and the filter cavity. In the nitrogen and phosphorus removal device of sewage treatment plant tail water advanced treatment, collection mechanism includes sleeve, three collection box and screw column, the sleeve rotates the inside of connecting in the retort, three collection box is circumference evenly fixed connection in telescopic surface, the bottom of filter chamber is provided with the filter plate, collection box sliding connection in the upper surface of filter plate, the screw column rotates the inside of connecting in collecting the box, telescopic inside is provided with the dish tooth, the one end of screw column runs through to telescopic inside, and the screw column runs through to the inside one end fixedly connected with awl tooth of sleeve, awl tooth and set tooth meshing, the bottom of collection box is embedded to have the filter screen. In