CN113511735B

CN113511735B - Sewage treatment aeration tank drainage structure with self-cleaning function

Info

Publication number: CN113511735B
Application number: CN202110509155.8A
Authority: CN
Inventors: 张明媛
Original assignee: Hebei Chengqian Environmental Protection Engineering Co ltd
Current assignee: Hebei Chengqian Environmental Protection Engineering Co ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2022-12-20
Anticipated expiration: 2041-05-11
Also published as: CN113511735A

Abstract

The invention provides a sewage treatment aeration tank drainage structure with self-cleaning function, which comprises an aeration tank, wherein a water inlet and a water outlet are respectively arranged at the front end and the rear end of the aeration tank, an annular overflow weir is movably arranged at the water outlet, a rotating shaft hole for inserting a rotating shaft of the annular overflow weir is formed in the side wall of the aeration tank at the water outlet, a plurality of overflow chutes are formed in the annular overflow weir, plugging scraping plates with the quantity consistent with that of the overflow chutes are fixedly arranged in the aeration tank at the bottom of the annular overflow weir, the annular overflow weir is of a hollow structure, and a plurality of overflow chute side walls are respectively provided with a dirt washing hole communicated with the interior of the annular overflow weir.

Description

Sewage treatment aeration tank drainage structure with self-cleaning function

Technical Field

The invention relates to the technical field of aeration tank drainage structures, in particular to a sewage treatment aeration tank drainage structure with self-cleaning function.

Background

In the overflow weir of the prior art, the application number "CN201721907335.7" is that a chamfer is arranged on the water inlet side of the top of the overflow weir, the overflow weir comprises a concrete structure arranged at the lower part and an overflow weir adding unit fixed at the upper end of the concrete structure, and the water inlet side at the top end of the overflow weir adding unit is the chamfer. The overflow weir is additionally provided with a unit with adjustable height and is arranged at the upper end of the concrete structure. The utility model discloses a self-cleaning formula round brush system is still disclosed, including setting up round brush, the drive round brush in overflow weir top against the current pivoted power unit and setting up the slag blocking plate who holds back the side at the overflow weir, the slag blocking plate lower extreme is lower than overflow weir top plane, and blocks the slag blocking plate and be equipped with blocking plate and rubbish baffle towards round brush one side, and the device is through intake the side at the overflow weir and establish the chamfer, can reduce the impact to former overflow weir right-angle side, increase overflow weir life. Still install the unit additional through setting up height-adjustable's overflow weir, can adjust according to actual need, the installation is convenient, adjust nimble, durable, with low costs.

However, the above-mentioned overflow weir still has obvious defects in the use process: 1. the overflow weir and the traditional overflow structure are both fixed pier structures, and no matter the overflow weir is a hump weir or a broken line weir, the loss of the overflow weir body structure can be caused in the long-term scouring process of water flow, and the overflow weir body structure needs to be repaired periodically; 2. after the overflow weir is used for a long time, particularly for a front-stage aeration tank seriously polluted, thick dirt is attached to the inner side of the weir body, the mechanism cleans the dirt by arranging a rolling brush system, but the additionally arranged rolling brush system causes certain obstruction to drainage.

Disclosure of Invention

The invention aims to provide a sewage treatment aeration tank drainage structure with self-cleaning function, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a sewage treatment aeration tank drainage structures of area self-cleaning, includes the aeration tank, both ends are provided with water inlet and outlet respectively around the aeration tank, the activity of water outlet department is provided with annular overflow weir, the aeration tank lateral wall of water outlet department sets up the pivot hole that supplies annular overflow weir to insert to establish, a plurality of overflow launders have been seted up on the annular overflow weir, fixed mounting has the shutoff of the unanimous with a plurality of overflow launder quantity to scrape the flitch in the aeration tank of annular overflow weir bottom, annular overflow weir is hollow structure, a plurality of overflow launder lateral wall all is provided with the dirt washing hole with the inside intercommunication of annular overflow weir, be provided with the impeller in the water inlet, the impeller is connected with annular overflow weir through transition mechanism, annular overflow weir is rotary motion under the drive of impeller, the shutoff is scraped the flitch and is kept away from the aeration tank bottom of water inlet one side and has seted up dirt feed opening.

Preferably, the quantity N more than or equal to 2 of water inlet, the equal activity in the water inlet is provided with the impeller, and is a plurality of the impeller mounting is epaxial at same connecting rod, transition mechanism includes drive sprocket, driving chain and driven sprocket, drive sprocket fixed mounting is at the both ends of connecting rod, driven sprocket fixed mounting is in the pivot of annular overflow weir both sides, both sides drive sprocket and driven sprocket all connect through the driving chain.

Preferably, the transmission chains on both sides are provided with tension wheels.

Preferably, bearings are fixedly installed in the rotating shaft holes, and rotating shafts at two ends of the annular overflow weir are fixedly inserted into the bearings at two sides.

Preferably, anti-leakage rubber pads are bonded to two ends of the annular overflow weir, and an anti-leakage rubber cushion layer is wrapped on the plugging scraping plate.

Preferably, the dirt washing holes are arranged on the side wall of the overflow groove in an annular array manner along the axis of the annular overflow weir.

Preferably, an aeration component is arranged at the bottom of the aeration tank.

Compared with the prior art, the invention has the beneficial effects that:

1. the overflow weir is arranged in a rotary and movable manner, the annular overflow weir slowly rotates to prevent the weir body structure from being washed by water flow for a long time, the utilization rate of the weir body is increased by the rotation of the annular overflow weir, the weir body loss caused by long-term washing of the overflow weir is effectively ensured, and meanwhile, the maintenance difficulty of the overflow weir is reduced by the detachable structure;

2. according to the invention, the plugging scraper plate is arranged, so that the dirt attached to the overflow groove is scraped while the water seepage at the bottom of the aeration tank is prevented, meanwhile, the plugging scraper plate is washed by the internal water flow through the arrangement of the dirt washing hole of the overflow groove by supplying water to the inside of the annular overflow weir and when the dirt washing hole rotates to the bottom, so that the scraped dirt is discharged through the dirt discharging opening, the self-cleaning can be completed without an external scrubbing mechanism, and the practicability of the device is greatly improved.

The overflow weir is rotationally and movably arranged, so that weir body loss caused by long-term scouring of the overflow weir is effectively guaranteed, dirt attached to the overflow groove can be scraped and scoured by arranging the plugging scraping plate and the dirt feed opening, and the practicability of the device is greatly improved.

Drawings

FIG. 1 is a perspective view of the overall structure of the present invention;

FIG. 2 is a perspective view of the overall structure of the annular overflow weir of the present invention;

FIG. 3 is a schematic view of the internal water retention of the annular weir of the present invention;

FIG. 4 is a schematic elevational view of an annular weir of the present invention;

FIG. 5 is an enlarged view of the area A of the present invention;

FIG. 6 is an enlarged view of the area B of the present invention;

fig. 7 is a schematic view of a connection structure of the transition mechanism of the present invention.

In the figure: the device comprises an aeration tank 1, a water inlet 2, a water outlet 3, an annular overflow weir 4, a rotating shaft 5, a rotating shaft hole 6, an overflow trough 7, a blocking scraper plate 8, a dirt washing hole 9, an impeller 10, a transition mechanism 11, a dirt discharge opening 12, a connecting rod shaft 13, a driving sprocket 14, a transmission chain 15, a driven sprocket 16, a tension pulley 17, a bearing 18, an antiseep rubber gasket 19 and an aeration component 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b):

referring to fig. 1-7, the present invention provides a technical solution:

the utility model provides a sewage treatment aeration tank drainage structures of area self-cleaning, including aeration tank 1, both ends are provided with water inlet 2 and outlet 3 respectively around the aeration tank 1, the activity of outlet 3 department is provided with annular overflow weir 4, the pivot 5 that supplies annular overflow weir 4 is seted up to aeration tank 1 lateral wall of outlet 3 department inserts the pivot hole 6 of establishing, a plurality of overflow launders 7 have been seted up on the annular overflow weir 4, fixed mounting has the shutoff flitch 8 of scraping with a plurality of overflow launder 7 quantity unanimity in aeration tank 1 of annular overflow weir 4 bottom, annular overflow weir 4 is hollow structure, a plurality of overflow launder 7 lateral walls all are provided with the dirt washing hole 9 with the inside intercommunication of annular overflow weir 4, be provided with impeller 10 in the water inlet 2, impeller 10 is connected with annular overflow weir 4 through transition mechanism 11, annular overflow weir 4 is rotary motion under impeller 10's drive, the shutoff is scraped the mouth 8 and is kept away from aeration tank 1 bottom of water inlet 2 one side and has been seted up dirt discharge 12.

Sewage enters the aeration tank 1 through the water inlet 2, kinetic energy generated by water flow scouring drives the impeller 10 to rotate, the impeller 10 rotates and is conducted to the annular overflow weir 4 through the transition mechanism 11, thereby the annular overflow weir 4 is driven to rotate around the rotating shaft 5, the annular overflow weir 4 is in the rotating process, water flow is discharged from the overflow trough 7 on the upper part, the rotation through the annular overflow weir 4 is realized, thereby the weir body structure is prevented from being washed by water flow for a long time, the utilization rate of the weir body is increased through the rotation of the annular overflow weir, the weir body loss caused by long-term scouring of the overflow weir is effectively ensured, meanwhile, through the detachable structure, the maintenance difficulty of the overflow weir is reduced, the dirt washing hole 9 is used as a passage for water flow to enter and exit from the inside of the annular overflow weir 4, when the dirt washing hole 9 rotates to one side of the aeration tank 1, water flow enters the inside of the annular overflow weir 4 through the dirt washing hole 9, when the dirt washing hole 9 rotates to the bottom, water flow is discharged through the dirt washing hole 9, the dirt scraping plate 8 scrapes off dirt in the overflow trough 7, thereby the dirt scraping device can prevent the dirt from flowing through the bottom of the effective plugging drain outlet 7 when the plugging sewage is scraped, thereby the plugging sewage can be prevented, the plugging sewage can not be discharged through the plugging drain outlet 12, and the plugging lower drain outlet when the plugging sewage can be used as the plugging drain outlet when the plugging sewage outlet 8.

Preferably, the number N of the water inlets 2 is greater than or equal to 2, impellers 10 are movably arranged in the water inlets 2, the impellers 10 are mounted on the same connecting rod shaft 13, the transition mechanism 11 includes a driving sprocket 14, a transmission chain 15 and a driven sprocket 16, the driving sprocket 14 is fixedly mounted at two ends of the connecting rod shaft 13, the driven sprocket 16 is fixedly mounted on the rotating shafts 5 at two sides of the annular overflow weir 4, the driving sprocket 14 and the driven sprocket 16 at two sides are connected through the transmission chain 15, the transmission mechanism can be effectively prevented from slipping through the sprocket transmission mechanism, it is ensured that the impellers 10 smoothly drive the annular overflow weir 4 to rotate, in addition, the rotating speed ratio of the driving sprocket 14 to the driven sprocket 16 in the embodiment is 20.

Preferably, the drive chains 15 on both sides are provided with tension pulleys 17, and the drive chains 15 are prevented from loosening due to long-term use by the provision of the tension pulleys 17.

Preferably, the bearings 18 are fixedly installed in the rotating shaft holes 6, the rotating shafts 5 at the two ends of the annular overflow weir 4 are fixedly inserted into the bearings 18 at the two sides, and the rotation of the annular overflow weir 4 can be ensured to be smoother through the arrangement of the bearings 18.

Preferably, anti-leakage rubber pads 19 are bonded at two ends of the annular overflow weir 4, and the anti-leakage rubber pad layer is wrapped on the plugging scraping plate 8. The arrangement of the anti-leakage rubber pad 19 can effectively prevent sewage from being discharged through a gap between the water outlet 3 and the annular overflow weir 4.

Preferably, the dirt washing holes 9 are arranged on the side wall of the overflow tank 7 in an annular array along the axis of the annular overflow weir 4, such arrangement enables the dirt washing holes 9 located inside the aeration tank 1 to supplement water into the annular overflow weir 4, and the dirt washing holes 9 located at the bottom of the annular overflow weir 4 can be flushed outwards, so as to complete the flushing of the dirt on the blocking scraper 8.

Preferably, the bottom of the aeration tank 1 is provided with an aeration unit 20, and the aeration unit 20 is pumped with water to perform aeration in the aeration tank 1.

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. The utility model provides a sewage treatment aeration tank drainage structures of area self-cleaning, includes aeration tank (1), its characterized in that: the sewage treatment device is characterized in that a water inlet (2) and a water outlet (3) are respectively arranged at the front end and the rear end of the aeration tank (1), an annular overflow weir (4) is movably arranged at the water outlet (3), a rotating shaft hole (6) for inserting a rotating shaft (5) of the annular overflow weir (4) is formed in the side wall of the aeration tank (1) at the water outlet (3), a plurality of overflow chutes (7) are formed in the annular overflow weir (4), plugging scraping plates (8) with the same number as the overflow chutes (7) are fixedly arranged in the aeration tank (1) at the bottom of the annular overflow weir (4), the annular overflow weir (4) is of a hollow structure, a plurality of dirt washing holes (9) communicated with the inside of the annular overflow weir (4) are formed in the side wall of the overflow weir (7), impellers (10) are arranged in the water inlet (2), the impellers (10) are connected with the annular overflow weir (4) through transition mechanisms (11), the annular overflow weir (4) is driven by the impellers (10) to rotate, and a dirt discharge port (12) is formed in the bottom of the aeration tank (1) at one side, far away from the water inlet (8).

2. The sewage treatment aeration tank drainage structure with self-cleaning function of claim 1, which is characterized in that: the quantity N more than or equal to 2 of water inlet (2), all the activity is provided with impeller (10), and is a plurality of in water inlet (2) impeller (10) are installed on same connecting rod axle (13), transition mechanism (11) are including drive sprocket (14), driving chain (15) and driven sprocket (16), drive sprocket (14) fixed mounting is at the both ends of connecting rod axle (13), driven sprocket (16) fixed mounting is on pivot (5) of annular overflow weir (4) both sides, both sides drive sprocket (14) and driven sprocket (16) all are connected through driving chain (15).

3. The sewage treatment aeration tank drainage structure with self-cleaning function of claim 2, which is characterized in that: and tension wheels (17) are arranged on the transmission chains (15) on the two sides.

4. The sewage treatment aeration tank drainage structure with self-cleaning function of claim 2, which is characterized in that: and bearings (18) are fixedly installed in the rotating shaft holes (6), and the rotating shafts (5) at the two ends of the annular overflow weir (4) are fixedly inserted into the bearings (18) at the two sides.

5. The sewage treatment aeration tank drainage structure with self-cleaning function of claim 1, which is characterized in that: and anti-leakage rubber pads (19) are bonded at two ends of the annular overflow weir (4), and the plugging scraping plate (8) is wrapped with the anti-leakage rubber pad layer.

6. The sewage treatment aeration tank drainage structure with self-cleaning function of claim 1, which is characterized in that: the dirt washing holes (9) are arranged on the side wall of the overflow groove (7) in an annular array manner along the axis of the annular overflow weir (4).

7. The sewage treatment aeration tank drainage structure with self-cleaning function of claim 6, which is characterized in that: an aeration component (20) is arranged at the bottom of the aeration tank (1).