CN217709024U

CN217709024U - High-efficient nitrogen and phosphorus removal AOA sewage treatment plant of interior carbon source

Info

Publication number: CN217709024U
Application number: CN202222067855.9U
Authority: CN
Inventors: 王飒; 刘钢; 刘丽红; 杨宇; 梅嘉鑫; 王丽
Original assignee: China Construction Fourth Engineering Division Corp Ltd; South China Institute of Environmental Science of Ministry of Ecology and Environment
Current assignee: China Construction Fourth Engineering Division Corp Ltd; South China Institute of Environmental Science of Ministry of Ecology and Environment
Priority date: 2022-08-08
Filing date: 2022-08-08
Publication date: 2022-11-01
Anticipated expiration: 2032-08-08

Abstract

The utility model belongs to the technical field of AOA sewage treatment devices, in particular to an internal carbon source high-efficiency nitrogen and phosphorus removal AOA sewage treatment device, which comprises a vertical reaction tank, wherein a threaded rod is vertically arranged at the top inside the reaction tank, a balancing weight is screwed on the threaded rod, and two stirring blades are symmetrically arranged at the bottom of the balancing weight; install the connecting piece of liftable on the threaded rod, the utility model discloses set up threaded rod, balancing weight, connecting piece and the lifting unit who mutually supports in being located the retort, the balancing weight descends downwards on the threaded rod through the gravity of self, and stirring vane through the balancing weight bottom stirs the sewage of the different degree of depth of sewage, lets the balancing weight reciprocal lift on the threaded rod through lifting unit and connecting piece simultaneously, and it is poor to have solved current AOA sewage treatment plant's stirring effect, is unfavorable for sewage to carry out the problem of mixing reaction.

Description

Internal carbon source efficient nitrogen and phosphorus removal AOA sewage treatment device

Technical Field

The utility model belongs to the technical field of AOA sewage treatment plant, concretely relates to high-efficient nitrogen and phosphorus removal AOA sewage treatment plant of interior carbon source.

Background

The AOA technology has good water outlet effect and enables the water quality to be stable, and an activated sludge method is the core problem of sewage treatment.

The conventional process flow is limited by the sludge reflux ratio, the total nitrogen removal rate is an industrial problem, the AOA technology arranges an anoxic zone at the rear, sewage sequentially flows through an anaerobic-aerobic-anoxic (A-O-A) biological reaction tank, the TN removal efficiency is obviously improved, the effluent effect is stably superior to the first-level A standard, and NH₄ ⁺the-N and TN are stably superior to the standard of Jingbiao A, the AOA technology can efficiently recycle the carbon source in the sludge, and the aeration quantity of biochemical treatment is reduced while the medicament input cost is saved.

Present AOA sewage treatment plant has mud to bond on the inner wall of equipment body when using, and present AOA sewage treatment plant does not have the device of clearance, can not clear up the inner wall that bonds, and in addition, present AOA sewage treatment plant's stirring effect is poor, is unfavorable for sewage to carry out mixing reaction.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an interior high-efficient nitrogen and phosphorus removal AOA sewage treatment plant of carbon source to solve the device that current AOA sewage treatment plant that provides does not have the clearance in the above-mentioned background art, can not clear up the inner wall that bonds, in addition, current AOA sewage treatment plant's stirring effect is poor, is unfavorable for sewage to carry out the problem of mixing reaction.

In order to achieve the above object, the utility model provides a following technical scheme: an internal carbon source efficient nitrogen and phosphorus removal AOA sewage treatment device comprises a vertical reaction tank, wherein a threaded rod is vertically installed at the top inside the reaction tank, a balancing weight is screwed on the threaded rod, and two stirring blades are symmetrically installed at the bottom of the balancing weight;

the threaded rod is provided with a liftable connecting piece, and the connecting piece is rotatably arranged on the balancing weight;

and a lifting component is installed at the top of the reaction tank, and one end of the lifting component is connected to the connecting piece.

Preferably, mounting grooves are formed in two symmetrical sides of the balancing weight, a telescopic rod capable of horizontally stretching is mounted in each mounting groove, a cleaning block is fixed at one end, far away from the balancing weight, of each telescopic rod, and one end of each cleaning block abuts against the inner wall of the reaction tank;

the mounting groove is internally provided with a spring, and one end of the spring is propped against the telescopic rod.

Preferably, the bottom of each of the two ends of the connecting piece is fixed with a sliding block, the top of the counterweight block is provided with a ring groove, and the two sliding blocks are installed in the ring grooves;

a first through hole is formed in the axis of the connecting piece in a penetrating mode, and the connecting piece is sleeved on the threaded rod through the first through hole;

a first limiting rod is fixed in the first through hole, a sliding groove is vertically formed in the threaded rod, and one end of the first limiting rod extends into the sliding groove.

Preferably, a second through hole penetrates through the axis of the balancing weight, and the balancing weight is sleeved on the threaded rod through the second through hole;

and a second limiting rod is fixed in the second through hole and clamped in the threaded rod.

Preferably, the lifting assembly comprises a motor and a wire wheel fixedly connected with the output end of the motor, a connecting rope is installed on the wire wheel, and one end of the connecting rope is fixed on the connecting piece.

Preferably, the bottom of the reaction tank is communicated with a sludge discharge pipe, and an aerator is arranged at the bottom inside the reaction tank;

one side of the top of the reaction tank is connected with a sewage inlet pipe, and the middle end of the other side of the reaction tank is connected with a drain pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) The utility model discloses set up and be located threaded rod, balancing weight, connecting piece and the lifting unit of mutually supporting in the retort, the balancing weight descends downwards on the threaded rod through the gravity of self, and stirring vane through the balancing weight bottom stirs the sewage of the different degree of depth of sewage, lets the balancing weight can reciprocate on the threaded rod through lifting unit and connecting piece simultaneously, and it is poor to have solved current AOA sewage treatment plant's stirring effect, is unfavorable for sewage to carry out the problem of mixing reaction.

(2) The utility model discloses set up the telescopic link that is located symmetric distribution on the balancing weight, clearance piece and spring, outwards released the telescopic link through the elasticity of spring to supporting the clearance piece on the inner wall of retort, when the balancing weight rotated on the threaded rod, the clearance piece scraped the inner wall of retort, solved current AOA sewage treatment plant and had not the device of clearance, can not carry out the problem of clearance to the inner wall that bonds.

Drawings

FIG. 1 is a schematic view of a partial structure of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is an enlarged view of FIG. 1 at B;

fig. 4 is a top view of the counterweight block of the present invention;

fig. 5 is a top view of the connector of the present invention;

in the figure: 1. a reaction tank; 2. a connecting member; 3. cleaning the block; 4. a telescopic rod; 5. a drain pipe; 6. a sludge discharge pipe; 7. an aerator; 8. a chute; 9. a threaded rod; 10. a sewage inlet pipe; 11. a spring; 12. a motor; 13. connecting ropes; 14. a wire wheel; 15. a first through hole; 16. a first limit rod; 17. a second limiting rod; 18. a counterweight block; 19. a ring groove; 20. a second through hole; 21. a slider; 22. and (7) installing a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: an internal carbon source efficient nitrogen and phosphorus removal AOA sewage treatment device comprises a vertical reaction tank 1, wherein a threaded rod 9 is vertically installed at the top inside the reaction tank 1, a balancing weight 18 is screwed on the threaded rod 9, and two stirring blades are symmetrically installed at the bottom of the balancing weight 18;

the threaded rod 9 is provided with a liftable connecting piece 2, and the connecting piece 2 is rotatably arranged on a balancing weight 18;

and a lifting component is arranged at the top of the reaction tank 1, and one end of the lifting component is connected to the connecting piece 2.

Through the technical scheme:

concretely, the device passes through retort 1, connecting piece 2, threaded rod 9, balancing weight 18 and lifting unit constitute, balancing weight 18 descends downwards on threaded rod 9 through the gravity of self, stirring vane through the 18 bottom of balancing weight stirs the sewage of the different degree of depth of sewage, let balancing weight 18 can reciprocate on threaded rod 9 through lifting unit and connecting piece 2 simultaneously, can only reciprocate on threaded rod 9 through connecting piece 2, and connecting piece 2 is connected with balancing weight 18's rotation, avoid lifting unit to rotate along with balancing weight 18 rotation and rotate.

Further, for the connecting piece 2, the bottom parts of the two ends of the connecting piece 2 are both fixed with sliding blocks 21, the top part of the balancing weight 18 is provided with a ring groove 19, and the two sliding blocks 21 are both arranged in the ring groove 19;

a first through hole 15 penetrates through the axis of the connecting piece 2, and the connecting piece 2 is sleeved on the threaded rod 9 through the first through hole 15;

be fixed with first gag lever post 16 in first through-hole 15, seted up spout 8 perpendicularly on the threaded rod 9, during the one end of first gag lever post 16 extended to spout 8, connecting piece 2 passed through slider 21 and annular 19 and can rotate on balancing weight 18, and connecting piece 2 overlaps on threaded rod 9 through first through-hole 15, can only the oscilaltion on threaded rod 9 through spout 8 and first gag lever post 16, can not rotate along with balancing weight 18 rotation.

Further, for the above-mentioned balancing weight 18, a second through hole 20 is opened through the axis of the balancing weight 18, and the balancing weight 18 is sleeved on the threaded rod 9 through the second through hole 20;

a second limiting rod 17 is fixed in the second through hole 20, the second limiting rod 17 is clamped in the threaded rod 9, the counterweight block 18 is sleeved on the threaded rod 9 through the second through hole 20, the counterweight block 18 can be screwed on the threaded rod 9 through the second limiting rod 17, and the counterweight block 18 is rotated on the threaded rod 9 through the cooperation of the second limiting rod 17 and the threaded rod 9.

Further, to the above-mentioned lifting unit who sets up, lifting unit includes motor 12 and motor 12 output end fixed connection's reel 14, installs on reel 14 and connects rope 13, connects the one end of rope 13 and fixes on connecting piece 2, and motor 12 starts, drives reel 14 and rotates to drive and connect rope 13 and roll on reel 14, thereby let balancing weight 18 go up and down on threaded rod 9 in reciprocating.

Further, aiming at the reaction tank 1, a sludge discharge pipe 6 is communicated with the bottom of the reaction tank 1, and an aerator 7 is arranged at the bottom in the reaction tank 1;

one side of the top of the reaction tank 1 is connected with a sewage inlet pipe 10, and the middle end of the other side of the reaction tank 1 is connected with a drain pipe 5.

Sewage is led into the reaction tank 1 through the sewage inlet pipe 10, anaerobic stirring is started while water is fed, after the anaerobic stirring is finished, hypoxia aeration is carried out for a period of time through the aerator 7, hypoxia stirring is started when the aeration stirring is finished, then sedimentation is carried out, water is discharged through the drain pipe 5 after a period of time, the water is not idle after being discharged, the next period is started, the anaerobic stirring, the hypoxia aeration, the hypoxia stirring and the sedimentation of the sewage are continuously carried out, and the process is repeated.

Referring to fig. 1-2 and 4, mounting grooves 22 are formed on two symmetrical sides of the counterweight block 18, a horizontally telescopic rod 4 is mounted in the mounting grooves 22, a cleaning block 3 is fixed on one end of the telescopic rod 4 far away from the counterweight block 18, and one end of the cleaning block 3 is abutted against the inner wall of the reaction tank 1;

the spring 11 is arranged in the mounting groove 22, and one end of the spring 11 is abutted against the telescopic rod 4.

Through the technical scheme:

specifically, the device comprises cleaning block 3, telescopic link 4, mounting groove 22 and spring 11, and elasticity through spring 11 outwards pushes out telescopic link 4 to support cleaning block 3 on retort 1's inner wall, when balancing weight 18 rotates on threaded rod 9, cleaning block 18 scrapes retort 1's inner wall.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An AOA sewage treatment device for efficiently removing nitrogen and phosphorus from an internal carbon source is characterized in that: the reaction tank comprises a vertical reaction tank (1), wherein a threaded rod (9) is vertically arranged at the top inside the reaction tank (1), a balancing weight (18) is screwed on the threaded rod (9), and two stirring blades are symmetrically arranged at the bottom of the balancing weight (18);

the threaded rod (9) is provided with a liftable connecting piece (2), and the connecting piece (2) is rotatably arranged on a balancing weight (18);

the top of retort (1) is installed lifting unit, lifting unit's one end is connected on connecting piece (2).

2. The AOA sewage treatment device with high nitrogen and phosphorus removal efficiency by using the internal carbon source as claimed in claim 1, wherein the AOA sewage treatment device comprises: mounting grooves (22) are formed in two symmetrical sides of the balancing weight (18), a telescopic rod (4) capable of horizontally stretching is mounted in each mounting groove (22), a cleaning block (3) is fixed to one end, far away from the balancing weight (18), of each telescopic rod (4), and one end of each cleaning block (3) abuts against the inner wall of the reaction tank (1);

a spring (11) is installed in the installation groove (22), and one end of the spring (11) abuts against the telescopic rod (4).

3. The AOA sewage treatment device with high nitrogen and phosphorus removal efficiency by using the internal carbon source as claimed in claim 1, wherein the AOA sewage treatment device comprises: the bottom parts of the two ends of the connecting piece (2) are respectively fixed with a sliding block (21), the top part of the balancing weight (18) is provided with a ring groove (19), and the two sliding blocks (21) are respectively arranged in the ring grooves (19);

a first through hole (15) penetrates through the axis of the connecting piece (2), and the connecting piece (2) is sleeved on the threaded rod (9) through the first through hole (15);

a first limiting rod (16) is fixed in the first through hole (15), a sliding groove (8) is vertically formed in the threaded rod (9), and one end of the first limiting rod (16) extends into the sliding groove (8).

4. The AOA sewage treatment device for high-efficiency nitrogen and phosphorus removal by using an internal carbon source as claimed in claim 1, wherein: a second through hole (20) penetrates through the axis of the balancing weight (18), and the balancing weight (18) is sleeved on the threaded rod (9) through the second through hole (20);

and a second limiting rod (17) is fixed in the second through hole (20), and the second limiting rod (17) is clamped in the threaded rod (9).

5. The AOA sewage treatment device with high nitrogen and phosphorus removal efficiency by using the internal carbon source as claimed in claim 1, wherein the AOA sewage treatment device comprises: the lifting assembly comprises a motor (12) and a wire wheel (14) fixedly connected with the output end of the motor (12), a connecting rope (13) is installed on the wire wheel (14), and one end of the connecting rope (13) is fixed on the connecting piece (2).

6. The AOA sewage treatment device with high nitrogen and phosphorus removal efficiency by using the internal carbon source as claimed in claim 1, wherein the AOA sewage treatment device comprises: the bottom of the reaction tank (1) is communicated with a sludge discharge pipe (6), and the bottom inside the reaction tank (1) is provided with an aerator (7);

one side at retort (1) top is connected with sewage inlet tube (10), the middle-end of retort (1) opposite side is connected with drain pipe (5).