CN216890570U

CN216890570U - Sludge reduction pond among sewage treatment

Info

Publication number: CN216890570U
Application number: CN202122760846.3U
Authority: CN
Inventors: 谭超; 何国钢; 邹蓉; 陈尚虎; 陶镇; 史峰; 丁嘉培
Original assignee: Hunan Weichuang Environment Technology Co ltd
Current assignee: Weichuang Environmental Technology Co ltd
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-07-05
Anticipated expiration: 2031-11-11

Abstract

The utility model discloses a sludge reduction tank in sewage treatment, which comprises a sludge tank, wherein the sludge tank is provided with a sludge inlet and an overflow port, and the bottom of the sludge tank is provided with a sludge collecting pit; the aeration device is arranged at the bottom of the tank and comprises a plurality of aeration pipes which are arranged in parallel, and the pipe wall of each aeration pipe is provided with a plurality of aeration holes; the scraper comprises rake tooth scrapers and a transmission device, each rake tooth scraper is provided with a plurality of rake teeth facing the bottom of the tank, each rake tooth scraper is arranged above the aeration pipe, each rake tooth is positioned between every two adjacent aeration pipes, and the transmission device is in transmission connection with the rake tooth scrapers so as to drive the rake tooth scrapers to move along the direction parallel to the axis of the aeration pipes; the sludge reduction tank in sewage treatment can stir the sludge at the bottom of the tank, and is matched with aeration treatment, so that the reaction efficiency of endogenous consumption is improved, and the sludge reduction is realized.

Description

Sludge reduction pond among sewage treatment

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a sludge reduction tank in sewage treatment.

Background

With the progress of sewage treatment technologies, sewage treatment plants are increased, excess sludge generated by sewage treatment is increased, the treatment and disposal of the excess sludge become a big problem in the sewage treatment industry, and some existing sludge reduction technologies and processes are specific to a certain sewage treatment process and do not have a universal sludge reduction device.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides the sludge reduction tank in sewage treatment, which can stir the sludge at the bottom of the tank and is matched with aeration treatment, so that the reaction efficiency of endogenous consumption is improved, and the sludge reduction is realized.

According to the embodiment of the utility model, the sludge reduction tank in sewage treatment comprises: the sludge tank is provided with a sludge inlet and an overflow port, and the bottom of the sludge tank is provided with a sludge collecting pit; the aeration device is arranged at the bottom of the tank and comprises a plurality of aeration pipes which are arranged in parallel, and the pipe wall of each aeration pipe is provided with a plurality of aeration holes; the scraper comprises a rake tooth scraper and a transmission device, the rake tooth scraper is provided with a plurality of rake teeth facing the bottom of the tank, the rake tooth scraper is arranged above the aeration pipes, each rake tooth is positioned between every two adjacent aeration pipes, and the transmission device is in transmission connection with the rake tooth scraper so as to drive the rake tooth scraper to move along the axial direction parallel to the aeration pipes.

The sludge reduction tank in sewage treatment according to the embodiment of the utility model at least has the following technical effects: the sludge mixed liquor enters a sludge tank through a sludge inlet for treatment, and supernatant in the tank after sludge precipitation can flow out through an overflow port and return to the front end of the sewage treatment process; the aeration device is used for introducing air into the sludge tank, wherein a plurality of aeration holes are formed in the aeration pipe, so that the specific surface area of bubbles is increased, the oxygen utilization rate is improved, and the sufficient contact between oxygen and residual sludge is facilitated; the sludge scraping device stirs the sludge at the bottom of the tank, so that the sludge is fully mixed with oxygen, the reaction efficiency of endogenous consumption is improved, the reduction of the residual sludge is realized, and the rake teeth of the rake tooth scraping plate can stir the sludge among the aeration pipes; and collecting and discharging the sludge which cannot be further reacted and consumed through a sludge collecting pit at the bottom of the tank for treatment.

In some embodiments of the utility model, the transmission device comprises a travelling rail, a travelling arm and a plurality of support columns, the travelling rail is erected on the wall of the sludge tank and has a guide stroke parallel to the aeration pipe, the travelling arm spans over the travelling rail and is connected with the travelling rail to move along the direction of the guide stroke, the support columns are vertically connected to the travelling arm to extend into the sludge tank, and the rake teeth scraper is connected to the lower ends of the support columns.

In some embodiments of the present invention, a plurality of truss rods are further disposed between the support columns, and the truss rods are staggered with each other and connected to the support columns.

In some embodiments of the present invention, the aeration pipe is sleeved with an aeration film, and the aeration film tightly wraps the aeration pipe.

In some embodiments of the present invention, the aeration device further comprises a plurality of gas distribution pipes, wherein the plurality of aeration pipes are uniformly divided into a plurality of groups, and each group of aeration pipes is communicated with the same gas distribution pipe.

In some embodiments of the present invention, the aeration pipe and the gas distribution pipe are communicated through a threaded joint.

In some embodiments of the present invention, the gas distribution pipe is further provided with an electromagnetic valve.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the rake teeth scraper configuration of an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a transmission according to an embodiment of the present invention;

fig. 4 is a schematic structural view of an aeration apparatus according to an embodiment of the present invention.

Reference numerals:

the sludge tank 100, the sludge collecting pit 110, the aeration device 200, the aeration pipe 210, the gas distribution pipe 220, the threaded joint 230, the mud scraping device 300, the rake teeth scraper 310, the rake teeth 311, the transmission device 320, the travelling crane rail 321, the travelling crane arm 322, the support column 323 and the truss rod 324.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 and 2, a sludge reduction tank in sewage treatment according to an embodiment of the present invention includes: the sludge tank 100 is provided with a sludge inlet and an overflow port, and the bottom of the sludge tank 100 is provided with a sludge collecting pit 110; the aeration device 200 is arranged at the bottom of the tank, the aeration device 200 comprises a plurality of aeration pipes 210 which are arranged in parallel, and the pipe wall of each aeration pipe 210 is provided with a plurality of aeration holes; the mud scraping device 300 comprises a rake tooth scraper 310 and a transmission device 320, wherein the rake tooth scraper 310 is provided with a plurality of rake teeth 311 facing the bottom of the pool, the rake tooth scraper 310 is arranged above the aeration pipes 210, each rake tooth 311 is positioned between two adjacent aeration pipes 210, and the transmission device 320 is in transmission connection with the rake tooth scraper 310 so as to drive the rake tooth scraper 310 to move along the axial direction parallel to the aeration pipes 210.

After the sludge mixed liquor enters the sludge tank 100 through the sludge inlet from the last treatment node, sludge in the sludge mixed liquor is accumulated at the bottom of the tank; the aeration device 200 is used for conveying air into the sludge tank 100, wherein the air is conveyed through the aeration pipe 210, and when the air passes through aeration holes on the pipe wall, generally, the aeration holes are all micro holes, so that bubbles generated by the air are reduced, the specific surface area of the bubbles is increased, oxygen is more easily dissolved in sewage, and the utilization rate of the oxygen is greatly improved; when the mud scraping device 300 works, the transmission device 320 drives the rake teeth scraper blade 310 to move along the axial direction parallel to the aeration pipes 210, the rake teeth 311 stir the sludge between the aeration pipes 210, and the rake teeth scraper blade 310 stirs the sludge above the aeration pipes 210, so that the sludge and oxygen are fully mixed, the reaction efficiency of endogenous consumption is improved, and the reduction of the sludge can be realized. Of course, the sludge that is not completely removed by the internal consumption and is finally deposited at the bottom of the tank is scraped by the rake teeth 311 to move to the sludge collecting pit 110 at the bottom of the tank, and finally the sludge that cannot be completely removed is discharged to the outside for further treatment by a sludge pump or other power devices arranged in the sludge collecting pit 110, so that the sludge removing device 300 can also improve the sludge removing efficiency.

Referring to fig. 3, in some embodiments of the present invention, the driving unit 320 includes a traveling rail 321, a traveling arm 322, and a plurality of support columns 323, the traveling rail 321 is erected on the wall of the sludge tank 100 and has a guide stroke parallel to the aeration pipe 210, the traveling arm 322 is spanned over the traveling rail 321 and connected to the traveling rail 321 to move in the direction of the guide stroke, the support columns 323 are vertically connected to the traveling arm 322 to extend into the inside of the sludge tank 100, and the rake teeth scraper 310 is connected to the lower ends of the support columns 323.

The traveling crane arm 322 moves on the traveling crane rail 321, the rake teeth scraper 310 is driven by the support column 323 to stir the sludge at the bottom of the tank, the driving part of the main body of the transmission device 320 with the structural design is arranged above the sludge tank 100 and is not contacted with the sewage, and if the traveling crane arm 322 and the traveling crane rail 321 are used, the structural components can be prevented from being soaked and corroded by the sewage, meanwhile, the maintenance is convenient, and the service life of the device is prolonged.

In some embodiments of the present invention, a plurality of truss bars 324 are further disposed between the support columns 323, and the truss bars 324 are staggered with each other and connected to the support columns 323.

The truss rods 324 are arranged between the support columns 323 in a staggered manner and connected with the support columns 323, so that the structural strength of the support columns 323 can be enhanced, and the integral structure of the support columns 323 and the truss rods 324 can bear larger movement resistance.

In some embodiments of the present invention, the aeration pipe 210 is covered with an aeration film, and the aeration film tightly wraps the aeration pipe 210.

The aeration film is a special bio-membrane reactor in the field of sewage treatment, and adopts a gas-permeable compact film

(such as a silicone rubber membrane) or a microporous membrane (such as a hydrophobic polymer membrane), the aeration membrane can increase the contact time of the microorganisms and the oxygen transfer efficiency of the aeration pipe 210, and promote the microorganisms in the sewage to perform relevant reactions to realize sewage treatment.

Referring to fig. 4, in some embodiments of the present invention, the aeration apparatus 200 further comprises a plurality of air distribution pipes 220, wherein the plurality of aeration pipes 210 are uniformly divided into a plurality of groups, and each group of aeration pipes 210 is communicated with the same air distribution pipe 220.

The aeration pipes 210 are uniformly grouped and then are respectively communicated with the gas distribution pipe 220 according to the groups, so that the air can be effectively and uniformly distributed in each aeration pipe 210, and oxygen can be uniformly dissolved in the sewage in the sludge tank 100.

In some embodiments of the present invention, the aerator pipe 210 communicates with the gas distribution pipe 220 through a screw joint 230.

Threaded joint 230 can realize quick dismantlement, provides convenience to the maintenance and overhaul of later stage aeration pipe 210.

In some embodiments of the present invention, the air-distributing pipe 220 is further provided with an electromagnetic valve.

The solenoid valve can control the flow rate of air in the air-distributing pipe 220, and thus can control the aeration amount of the aeration pipe 210.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A mud minimizing pond in sewage treatment, characterized by that includes:

the device comprises a sludge tank (100), wherein the sludge tank (100) is provided with a sludge inlet and an overflow port, and the bottom of the sludge tank (100) is provided with a sludge collecting pit (110);

the aeration device (200), the aeration device (200) is arranged at the bottom of the pool, the aeration device (200) comprises a plurality of aeration pipes (210) which are arranged in parallel, and the pipe wall of each aeration pipe (210) is provided with a plurality of aeration holes;

the mud scraping device (300) comprises a rake tooth scraper (310) and a transmission device (320), wherein the rake tooth scraper (310) is provided with a plurality of rake teeth (311) facing the bottom of the pool, the rake tooth scraper (310) is arranged above the aeration pipes (210), each rake tooth (311) is positioned between two adjacent aeration pipes (210), and the transmission device (320) is in transmission connection with the rake tooth scraper (310) so as to drive the rake tooth scraper (310) to move along the direction parallel to the axis of the aeration pipes (210).

2. The sludge reduction tank in sewage treatment according to claim 1, wherein the transmission device (320) comprises a traveling rail (321), a traveling arm (322) and a plurality of support columns (323), the traveling rail (321) is erected on the tank wall of the sludge tank (100) and has a guide stroke parallel to the aeration pipe (210), the traveling arm (322) is spanned on the traveling rail (321) and connected with the traveling rail (321) to move along the guide stroke direction, the support columns (323) are vertically connected on the traveling arm (322) to protrude into the inside of the sludge tank (100), and the rake teeth scraper (310) is connected at the lower end of the support columns (323).

3. The sludge reduction pond in sewage treatment according to claim 2, wherein a plurality of truss rods (324) are further arranged between the support columns (323), and the truss rods (324) are staggered with each other and connected with the support columns (323).

4. The sludge reduction tank in sewage treatment according to claim 1, wherein the aeration pipe (210) is sleeved with an aeration film, and the aeration film tightly wraps the aeration pipe (210).

5. The sludge reduction tank in sewage treatment according to claim 1, wherein the aeration device (200) further comprises a plurality of gas distribution pipes (220), wherein the plurality of aeration pipes (210) are uniformly divided into a plurality of groups, and each group of aeration pipes (210) is communicated with the same gas distribution pipe (220).

6. The sludge reduction tank in sewage treatment according to claim 5, wherein the aeration pipe (210) is communicated with the gas distribution pipe (220) through a threaded joint (230).

7. The sludge reduction pond in sewage treatment according to claim 5, wherein the gas distribution pipe (220) is further provided with an electromagnetic valve.