CN210505744U

CN210505744U - Activated sludge aeration tank for food wastewater treatment

Info

Publication number: CN210505744U
Application number: CN201921469932.5U
Authority: CN
Inventors: 傅芬芸; 曾达彬; 王立杰
Original assignee: Fujian Kewo Environmental Engineering Co Ltd
Current assignee: Fujian Kewo Environmental Engineering Co Ltd
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-05-12
Anticipated expiration: 2029-09-05

Abstract

The utility model discloses an activated sludge aeration tank for food waste water treatment, which comprises an aeration tank body, wherein the bottom of the aeration tank body is provided with a fixed seat, the top end of the fixed seat is provided with an aeration main pipe, one end of the aeration main pipe is communicated with an air pump, aeration branch pipes are vertically arranged at the top of the aeration main pipe at intervals, one end of each aeration branch pipe is provided with an installation head, the top of the installation head is fixedly connected with an aeration disc, and two sides of the bottom of the installation head are symmetrically provided with vent holes, the activated sludge aeration tank for food waste water treatment is characterized in that the aeration discs are fixed at the top end of the installation head, aeration plates are symmetrically arranged at the bottom of the installation head, after the air pump is started, oxygen-containing gas is diffused at the periphery of the installation head, so that the oxygen is more fully contacted with an activated sludge layer, when, the sludge pump is used for conveying the sludge to the aeration tank body regularly, and the application effect is good.

Description

Activated sludge aeration tank for food wastewater treatment

Technical Field

The utility model relates to an aeration tank, in particular to an activated sludge aeration tank for food wastewater treatment, which belongs to the technical field of wastewater treatment equipment.

Background

Activated sludge is a general term for microbial populations and the organic and inorganic substances to which they are attached. The aeration tank is a place where activated sludge consisting of microorganisms is fully mixed and contacted with organic pollutant substances in sewage and then is degraded, absorbed and decomposed, and is the core of an activated sludge process, the aeration system is used for supplying oxygen necessary for microorganism growth and organic matter decomposition to the aeration tank and has the functions of mixing and stirring to ensure that the activated sludge is fully contacted with the organic matter, and a large amount of suspended flocculent sludge particles observable by naked eyes in the aeration tank are called activated sludge flocculent bodies and are decomposed along with the organic pollutants.

In the existing activated sludge aeration tank, the contact surface of oxygen and sludge is small, so that the oxygen utilization rate is not high, the sludge content loss during aeration is serious, and the subsequent efficiency of the aeration tank is reduced. Therefore, we improve the method and provide an activated sludge aeration tank for food wastewater treatment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an activated sludge aeration tank for food waste water treatment to in solving the traditional activated sludge aeration tank that provides in the above-mentioned background art, the contact surface of oxygen and mud is little, leads to the oxygen utilization ratio not high, and the serious problem of mud content loss when aerating.

In order to achieve the above object, the utility model provides a following technical scheme: an activated sludge aeration tank for food wastewater treatment comprises an aeration tank body, wherein the bottom of the aeration tank body is provided with a fixed seat, the top end of the fixed seat is provided with an aeration main pipe, one end of the aeration main pipe is communicated with an air pump, aeration branch pipes are vertically arranged at intervals on the top of the aeration main pipe, one end of the aeration branch pipe is provided with an installation head, the top of the installation head is fixedly connected with an aeration disc, air vents are symmetrically arranged at two sides of the bottom of the mounting head, one end of each air vent is communicated with the aeration plate, the bottom of the aeration plate is provided with a support rod connected with the fixed seat, one side of the top of the aeration tank body is provided with a wastewater inlet, the other side of the top of the aeration tank body is horizontally provided with a connecting pipe, one end of the connecting pipe is communicated with a drainage tank, a first metal screen plate is vertically arranged at the fixed end opening of the drainage tank and the connecting pipe, and a first activated sludge layer is distributed at the bottom end of the aeration tank body.

As an optimized technical proposal of the utility model, the aeration plate is hollow inside, and the two sides of the aeration plate are evenly distributed with air holes.

As an optimal technical scheme of the utility model, the drainage pond outside is equipped with the outlet pipe, the inside port joint of outlet pipe has second metal mesh board.

As the utility model discloses an optimized technical scheme, the distribution of drainage tank bottom has second activated sludge blanket, link to each other through defeated mud pipe between second activated sludge blanket and the first activated sludge blanket, install the sludge pump in the middle of the defeated mud pipe.

As an optimized technical proposal of the utility model, the aeration disc is connected with the mounting head through screw threads.

As a preferred technical proposal of the utility model, the aeration branch pipe and the aeration main pipe are fixed through a three-way joint.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to an activated sludge aeration tank for food waste water treatment, it is abundant to have the contact surface of oxygen and mud, and the advantage that the mud content during aeration runs off fewly, in concrete use, compare with traditional sludge aeration tank, the utility model discloses a at the fixed aeration dish in installation head top, set up the aeration board in installation head bottom symmetry, and aeration board both sides evenly distributed has the bleeder vent, after the air pump starts, oxygen-containing gas spreads out in the periphery of installation head for aeration wide range, oxygen is more abundant with the contact on activated sludge layer, when going out water, utilizes first metal otter board and second metal otter board to reduce mud and runs off, and the activated sludge behind the partial stillness is attached to the drainage bottom of the pool, utilizes the sludge pump to carry it to aeration cell body regularly, and is suitable for effectually.

Drawings

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

FIG. 2 is a schematic view of the connection structure between the main aeration pipe and the installation head of the present invention;

in the figure: 1. a wastewater inlet; 2. an aeration tank body; 3. an air pump; 4. an aeration main pipe; 5. a fixed seat; 6. a support bar; 7. a first activated sludge blanket; 8. a mud conveying pipe; 9. a sludge pump; 10. a connecting pipe; 11. a water outlet pipe; 12. a first metal mesh plate; 13. a second metal mesh plate; 14. a second activated sludge blanket; 15. a vent; 16. an aeration disc; 17. a mounting head; 18. air holes are formed; 19. an aeration plate; 20. an aeration branch pipe; 21. a water drainage pool.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 work belong to the protection scope of the present invention.

Referring to fig. 1-2, the utility model provides an activated sludge aeration tank for food wastewater treatment, which comprises an aeration tank body 2, wherein a fixed seat 5 is arranged at the bottom of the aeration tank body 2, an aeration main pipe 4 is arranged at the top end of the fixed seat 5, one end of the aeration main pipe 4 is communicated with an air pump 3, aeration branch pipes 20 are vertically arranged at the top of the aeration main pipe 4 at intervals, one end of each aeration branch pipe 20 is provided with an installation head 17, an aeration disc 16 is fixedly connected with the top of the installation head 17, vent holes 15 are symmetrically arranged at two sides of the bottom of the installation head 17, one end of each vent hole 15 is communicated with an aeration plate 19, a support rod 6 connected with the fixed seat 5 is arranged at the bottom of the aeration plate 19, one side of the top of the aeration tank body 2 is provided with a wastewater inlet 1, a first metal screen plate 12 is vertically arranged at the fixed end opening of the drainage tank 21 and the connecting pipe 10, and a first activated sludge layer 7 is distributed at the bottom end of the aeration tank body 2.

Preferably, the aeration plate 19 is hollow, and the aeration holes 18 are uniformly distributed on both sides of the aeration plate 19, so that the aeration range is enlarged, and the contact between oxygen and sludge is more sufficient.

Preferably, a water outlet pipe 11 is arranged on the outer side of the drainage pool 21, and a second metal mesh plate 13 is clamped at an end opening on the inner side of the water outlet pipe 11, so that the loss of activated sludge is reduced.

Preferably, a second activated sludge layer 14 is distributed at the bottom of the drainage pool 21, the second activated sludge layer 14 is connected with the first activated sludge layer 7 through a sludge conveying pipe 8, a sludge pump 9 is installed in the middle of the sludge conveying pipe 8, activated sludge is collected after standing and is discharged into the aeration pool body 2, and the capacity of the aeration pool body 2 for adsorbing and oxidizing organic matters is maintained.

Preferably, the aeration disc 16 is connected with the mounting head 17 through threads, so that the mounting and dismounting are convenient.

Preferably, the aeration branch pipe 20 and the aeration main pipe 4 are fixed through a three-way joint.

When specifically using, the utility model relates to an activated sludge aeration tank for food waste water treatment, it is abundant to have the contact surface of oxygen and mud, and the mud content during the aeration runs off few advantage, through at the fixed aeration dish 16 in installation head 17 top, set up aeration board 19 in installation head 17 bottom symmetry, and aeration board 19 both sides evenly distributed has bleeder vent 18, after air pump 3 starts, oxygen-containing gas spreads out in the periphery of installation head 17, make the aeration wide range, oxygen is more abundant with the contact on activated sludge layer, when going out water, utilize first metal otter board 12 and second metal otter board 13 to reduce mud and run off, and the activated sludge who partly stands back is attached to drainage tank 21 bottom, utilize sludge pump 9 to carry it to aeration cell body 2 regularly, and is good in application effect, be worth extensively promoting.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship 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 indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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 activated sludge aeration tank for food wastewater treatment comprises an aeration tank body (2) and is characterized in that a fixing seat (5) is arranged at the bottom of the aeration tank body (2), an aeration main pipe (4) is arranged at the top end of the fixing seat (5), one end of the aeration main pipe (4) is communicated with an air pump (3), aeration branch pipes (20) are vertically arranged at the top of the aeration main pipe (4) at intervals, an installation head (17) is arranged at one end of each aeration branch pipe (20), an aeration disc (16) is fixedly connected to the top of the installation head (17), aeration holes (15) are symmetrically formed in two sides of the bottom of the installation head (17), one end of each aeration hole (15) is communicated with an aeration plate (19), a support rod (6) connected with the fixing seat (5) is arranged at the bottom of the aeration plate (19), a wastewater inlet (1, the aeration tank body (2) is characterized in that a connecting pipe (10) is horizontally arranged on the other side of the top of the aeration tank body (2), one end of the connecting pipe (10) is communicated with a water drainage tank (21), a first metal mesh plate (12) is vertically arranged at the fixed end openings of the water drainage tank (21) and the connecting pipe (10), and a first activated sludge layer (7) is distributed at the bottom end of the aeration tank body (2).

2. The activated sludge aeration tank for food waste water treatment according to claim 1, characterized in that: the aeration plate (19) is hollow, and air holes (18) are uniformly distributed on two sides of the aeration plate (19).

3. The activated sludge aeration tank for food waste water treatment according to claim 1, characterized in that: and a water outlet pipe (11) is arranged on the outer side of the drainage pool (21), and a second metal mesh plate (13) is clamped at the port of the inner side of the water outlet pipe (11).

4. The activated sludge aeration tank for food waste water treatment according to claim 1, characterized in that: the bottom of the drainage pool (21) is distributed with a second activated sludge layer (14), the second activated sludge layer (14) is connected with the first activated sludge layer (7) through a sludge conveying pipe (8), and a sludge pump (9) is installed in the middle of the sludge conveying pipe (8).

5. The activated sludge aeration tank for food waste water treatment according to claim 1, characterized in that: the aeration disc (16) is connected with the mounting head (17) through threads.

6. The activated sludge aeration tank for food waste water treatment according to claim 1, characterized in that: the aeration branch pipe (20) and the aeration main pipe (4) are fixed through a three-way joint.