阅读说明：本技术 高效溶气气浮装置 (High-efficient dissolved air flotation device ) 是由 戴文强 于 2021-07-06 设计创作，主要内容包括：本发明涉及一种高效溶气气浮装置,包括池体、接触室、接触室匀水板、接触室匀水孔、放空接口、分离室、清水收集室、污泥存储室、污泥存储室排出接口、污泥存储室闸板、污泥接收室、与溶气罐、溶气水总管、接触室溶气水释放管、接触室溶气水释放头、导流隔板、刮渣机、清水外排接口、T形清水收集管组件、清水收集管进水孔、清水均匀布水盒、连通口、清水收集室淤泥排出接口与污水进水接口与污水进水管。本发明大大提高了污水处理效率并提高了出水品质。(The invention relates to a high-efficiency dissolved air flotation device which comprises a pool body, a contact chamber water homogenizing plate, a contact chamber water homogenizing hole, an emptying interface, a separation chamber, a clear water collecting chamber, a sludge storage chamber discharge interface, a sludge storage chamber flashboard, a sludge receiving chamber, a dissolved air tank, a dissolved air water header pipe, a contact chamber dissolved air water release head, a flow guide partition plate, a slag scraper, a clear water discharge interface, a T-shaped clear water collecting pipe assembly, a clear water collecting pipe water inlet hole, a clear water uniform water distribution box, a communication port, a clear water collecting chamber sludge discharge interface, a sewage inlet interface and a sewage inlet pipe. The invention greatly improves the sewage treatment efficiency and the effluent quality.)

1. The utility model provides a high-efficient gas air supporting device that dissolves, includes cell body (1) and dissolves gas pitcher (2), dissolves gas pitcher (2) and installs on the outer wall of cell body (1), is connected with at the exit end of dissolving gas pitcher (2) and dissolves gas water house steward (2.1), characterized by: the sludge storage tank is characterized in that the tank body (1) is rectangular, the tank body (1) is divided into a contact chamber (1.1), a separation chamber (1.2), a clear water collection chamber (1.3), a separation chamber (1.2) and a contact chamber (1.1) which are sequentially arranged from left to right in the length direction, a sludge storage chamber (1.4) is arranged above the clear water collection chamber (1.3), a sludge receiving chamber (1.5) is respectively arranged on the left side and the right side of the sludge storage chamber (1.4), the sludge receiving chamber (1.5) is communicated with the sludge storage chamber (1.4), a sludge storage chamber discharge interface (1.41) and a sludge storage chamber (1.42) matched with the sludge shutter discharge interface (1.41) are arranged on the side surface of the sludge storage chamber (1.4), a contact chamber water homogenizing plate (1.11) is fixed above the bottom surface of the tank body (1) in the corresponding contact chamber (1.1), and a contact chamber water homogenizing hole (1.12) is arranged on the contact chamber water plate (1.11), a vent interface (1.13) is arranged on the side wall of a contact chamber (1.1) below a contact chamber water-homogenizing plate (1.11), a flow guide clapboard (3) which inclines to one side of a separation chamber (1.2) is fixed on the bottom surface of a tank body (1) corresponding to the joint of the adjacent contact chamber (1.1) and the separation chamber (1.2), a slag scraper (4) is arranged on the edge of the tank body (1) corresponding to the position of the separation chamber (1.2), a contact chamber dissolved air water release pipe (2.2) which extends into the contact chamber from top to bottom is arranged in the contact chamber (1.1), the contact chamber dissolved air water release pipe (2.2) is connected with a dissolved air water main pipe (2.1), a contact chamber dissolved air water release head (2.21) is arranged on the contact chamber dissolved air water release pipe (2.2), an outer discharge interface (5) and a clear water collection chamber sludge water inlet interface (6) are arranged on the front side surface of a clear water collection chamber (1.3), and a clear water inlet interface (7) is arranged above the clear water collection chamber sludge inlet interface (5), the sewage inlet interface (7) is positioned above the sludge discharge interface (6) of the clear water collection chamber, the sewage inlet interface (7) is connected with a sewage inlet pipe (7.1) which passes through the clear water collection chamber (1.3) and the separation chamber (1.2) and is fixed on the upper surface of the contact chamber water homogenizing plate (1.11), a plurality of groups of T-shaped clear water collection pipe components (5.1) are arranged in the separation chamber (1.2), clear water collection pipe inlet holes (5.11) are arranged on the lower side surface of the T-shaped clear water collection pipe components (5.1), a clear water uniform water distribution box (5.2) positioned in the separation chamber (1.2) is fixed on a partition plate between the separation chamber (1.2) and the clear water collection chamber (1.3), the water outlet of the T-shaped clear water collection pipe components (5.1) is arranged on the clear water uniform water distribution box (5.2), and a communication port (5.3) is arranged on the partition plate between the separation chamber (1.2) and the clear water collection chamber (1.3), the T-shaped clear water collecting pipe assembly (5.1) is communicated with the inner cavity of the clear water uniform water distribution box (5.2) through the water outlet of the T-shaped clear water collecting pipe assembly, and the inner cavity of the clear water uniform water distribution box (5.2) is communicated with the clear water collecting chamber (1.3) through the communicating opening (5.3).

2. The efficient dissolved air flotation device as set forth in claim 1, characterized in that: a separating chamber dissolved gas water release pipe (2.3) extending into the separating chamber (1.2) from top to bottom is arranged in the separating chamber, the separating chamber dissolved gas water release pipe (2.3) is connected with a dissolved gas water main pipe (2.1), and a separating chamber dissolved gas water release head (2.31) is arranged on the separating chamber dissolved gas water release pipe (2.3).

3. The efficient dissolved air flotation device as set forth in claim 1, characterized in that: the bottom surface of separating chamber (1.2) has a plurality of separating chamber silt collection fill (1.21) that are individual toper recessed structure, and the last mouth of all separating chamber silt collection fill (1.21) links together along the homogeneous phase, every two separating chamber silt collection fill (1.21) are a set of, and the both ends of a separating chamber silt connecting pipe (1.22) are connected respectively on the adjacent side of two separating chamber silt collection fill (1.21) in every set of, install separating chamber silt discharge interface (1.23) at the middle part of separating chamber silt connecting pipe (1.22).

4. The efficient dissolved air flotation device as set forth in claim 1, characterized in that: clear water of clear water collection room (1.3) bottom surface is the clear water of integral toper recessed structure and collects room silt and collect fill (1.31), collects room silt and collects the side of the clear water collection room (1.3) of fighting (1.31) top at corresponding clear water and is equipped with outer interface (5) and sewage interface (7) of discharging of clear water, is equipped with in the clear water collection room silt and collects the side of fighting (1.31) the clear water collect room silt and discharge interface (6).

5. The efficient dissolved air flotation device as set forth in claim 1, characterized in that: a diversion folded plate (3.1) is fixed at the upper end part of the diversion partition plate (3), the diversion folded plate (3.1) inclines towards one side of the separation chamber (1.2) adjacent to the diversion folded plate, and the diversion folded plate (3.1) is connected with the diversion partition plate (3) in an obtuse angle.

6. The efficient dissolved air flotation device as set forth in claim 1, characterized in that: t shape clear water collects pipe assembly (5.1) and collects house steward (5.12), clear water including the clear water and collects connecting pipe (5.13) and clear water and collect branch pipe (5.14), collects house steward (5.12), clear water and collects connecting pipe (5.13) and clear water and collect all seted up on the downside of branch pipe (5.14) clear water inlet opening (5.11), and clear water collection house steward (5.12) and clear water collect the middle part that connecting pipe (5.13) was the vertical fixation, collect the equal vertical fixation in the inside and outside both ends left and right sides of connecting pipe (5.13) at the clear water and have the clear water to collect branch pipe (5.14), the clear water is collected house steward (5.12) and clear water and is collected branch pipe (5.14) and is parallel arrangement.

7. The efficient dissolved air flotation device as set forth in claim 1, characterized in that: the length-width ratio of the separation chamber (1.2) is (1.5:1) - (1: 5).

Technical Field

The invention relates to a sewage treatment device, in particular to a high-efficiency dissolved air floatation device.

Background

The main working principle of air floatation is that micro-bubble communities of 20-100um generated by an air dissolving system are coated on the surface of suspended matters in sewage to form air-immersed flocs with the specific gravity less than 1, and the air-immersed flocs float to the liquid surface under the action of buoyancy to form scum, so that solid-liquid separation is completed.

The length-to-width ratio of the separation chamber of the conventional air floatation device is 3:1 or even 5:1, which is the main parameter of air floatation design recommended in various textbooks and design manuals so far. Example of treating wastewater of 200m³The surface load of the air floatation is 3-5 m³/ m²When designing the separation chamber, the size of the separation chamber adopts 3800 mm,the length is required to be 12400 mm, the length-width ratio is basically controlled to be about 3:1, and the conventional air flotation working principle is formed in the last 60 th century and is complete in the 80 th century. The overall efficiency of the process is relatively low. The main problems are that the length-width ratio of the separation chamber is unreasonable, the length of the separation chamber is close to 12.4 meters, the distribution of bubble layers in dissolved air water in the conventional air floatation separation chamber is triangular, and no bubbles exist at the water outlet end of the air floatation tank body. Therefore, in the process of removing scum at the rear end of the air flotation tank body, because no bubble is supported, the scum can fall to the bottom of the tank and be taken away along with the discharged water, and the quality of the discharged water can be seriously influenced.

The clear water collection of the separation chamber of the conventional air floatation device adopts a working mode of punching holes below a plurality of pipes and collecting clear water. According to the working principle, the length of the pipe is too long due to the matching with the length requirement of the separation chamber, and when the clear water collecting hole is unreasonably configured or the hole is blocked by sludge during operation, only part of length of the pipeline participates in clear water collecting work, so that the efficiency is very low.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide the high-efficiency dissolved air flotation device which can improve the sewage treatment efficiency and the effluent quality.

According to the technical scheme provided by the invention, the high-efficiency dissolved air flotation device comprises a pool body and a dissolved air tank, wherein the dissolved air tank is arranged on the outer wall of the pool body, an outlet end of the dissolved air tank is connected with a dissolved air water main pipe, the pool body is cuboid, the pool body is divided into a contact chamber, a separation chamber, a clear water collection chamber, a separation chamber and a contact chamber which are sequentially arranged from left to right in the length direction, a sludge storage chamber is arranged above the clear water collection chamber, a sludge receiving chamber is respectively arranged at the left side and the right side of the sludge storage chamber, the sludge receiving chamber is communicated with the sludge storage chamber, a sludge storage chamber discharge interface and a sludge storage chamber flashboard matched with the sludge storage chamber discharge interface are arranged on the side surface of the sludge storage chamber, a contact chamber water homogenizing board is fixed above the bottom surface of the pool body in the corresponding contact chamber, and a contact chamber water homogenizing hole is arranged on the contact chamber water homogenizing board, a discharge interface is arranged on the side wall of the contact chamber below the contact chamber water homogenizing plate, a flow guide baffle plate which is inclined towards one side of the separation chamber is fixed on the bottom surface of the cell body corresponding to the joint of the adjacent contact chamber and the separation chamber, a slag scraper is arranged on the edge of the cell body corresponding to the position of the separation chamber, a contact chamber dissolved air water release pipe which extends into the contact chamber from top to bottom is arranged in the contact chamber, the contact chamber dissolved air water release pipe is connected with a dissolved air water header pipe, a contact chamber dissolved air water release head is arranged on the contact chamber dissolved air water release pipe, a clear water discharge interface, a clear water collection chamber discharge interface and a sewage and sludge inlet interface are arranged on the front side surface of the clear water collection chamber, the clear water discharge interface is arranged above the sewage and sludge inlet interface, the sewage and inlet interface is arranged above the clear water collection chamber sludge discharge interface, and a sewage and sludge inlet pipe which penetrates through the clear water collection chamber and the separation chamber and is fixed on the upper surface of the contact chamber water homogenizing plate is connected on the sewage inlet interface, be equipped with a plurality of groups T shape clear water collecting pipe subassembly in the separator, seted up clear water collecting pipe inlet opening on the downside of T shape clear water collecting pipe subassembly, be fixed with the even water distribution box of clear water that is located the separator on the baffle between separator and clear water collection room, the delivery port setting of T shape clear water collecting pipe subassembly is on the even water distribution box of clear water, has seted up the intercommunication mouth on the baffle between separator and clear water collection room, and the inner chamber intercommunication of T shape clear water collecting pipe subassembly through its delivery port and the even water distribution box of clear water, and the inner chamber of the even water distribution box of clear water collects the room intercommunication through intercommunication mouth and clear water.

Preferably, the method comprises the following steps: the separation chamber is internally provided with a separation chamber dissolved gas-water release pipe which extends into the separation chamber from top to bottom, the separation chamber dissolved gas-water release pipe is connected with a dissolved gas-water main pipe, and a separation chamber dissolved gas-water release head is arranged on the separation chamber dissolved gas-water release pipe.

Preferably, the method comprises the following steps: the bottom surface of separation chamber has a plurality of separation chamber silt that are individual toper recessed structure and collects the fill, and all separation chamber silt collect the last mouthful of fighting and link together along the homogeneous phase, and per two separation chamber silt are collected and are fought for a set of, and the both ends of a separation chamber silt connecting pipe are connected respectively on two adjacent sides that the fill was collected to separation chamber silt in every a set of, have separation chamber silt discharge interface at the mid-mounting of separation chamber silt connecting pipe.

The efficient dissolved air flotation device as claimed in claim, wherein: clear water collection room silt that the bottom surface of clear water collection room is integral toper recessed structure is collected and is fought, is equipped with on the side of the clear water collection room that corresponds clear water collection room silt and collect the fill top the clear water outer discharge interface and the sewage interface of intaking are equipped with on the side of clear water collection room silt collection fill the clear water collection room silt discharge interface.

Preferably, the method comprises the following steps: and a diversion folded plate is fixed at the upper end part of the diversion partition plate, inclines to one side of the separation chamber adjacent to the diversion folded plate, and is connected with the diversion partition plate at an obtuse angle.

Preferably, the method comprises the following steps: t shape clear water collecting pipe subassembly includes that the clear water collects house steward, clear water and collects connecting pipe and clear water and collect the branch pipe, collects house steward, clear water at the clear water and collects all seted up on the downside that connecting pipe and clear water collected the branch pipe the clear water inlet opening, and the clear water collects house steward and clear water and collect the middle part that the connecting pipe was collected to the clear water and be the vertical fixation, collect the equal vertical fixation in the inside and outside both ends left and right sides of connecting pipe at the clear water and have the clear water to collect the branch pipe, the clear water is collected house steward and clear water and is collected the branch pipe and be parallel arrangement.

Preferably, the method comprises the following steps: the length-width ratio of the separation chamber is (1.5:1) - (1: 5).

The invention greatly improves the sewage treatment efficiency and the effluent quality.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a left side view of the present invention.

FIG. 4 is a front view showing the installation structure of the gas-water releasing head of the contact chamber and the gas-water releasing head of the separation chamber in the present invention.

FIG. 5 is a plan view showing the installation structure of the gas-water releasing head of the contact chamber and the gas-water releasing head of the separation chamber in the present invention.

FIG. 6 is a front view of the mounting structure of the T-shaped clean water collection tube assembly of the present invention.

FIG. 7 is a top view of the mounting structure of the T-shaped clean water collection tube assembly of the present invention.

Fig. 8 is a front view of the installation structure of the sewage inlet pipe in the present invention.

FIG. 9 is a plan view showing the installation structure of the sewage inlet pipe in the present invention.

Detailed Description

The present invention will be further described with reference to the following specific examples.

The invention relates to a high-efficiency dissolved air flotation device, which comprises a tank body 1 and a dissolved air tank 2, wherein the dissolved air tank 2 is arranged on the outer wall of the tank body 1, the outlet end of the dissolved air tank 2 is connected with a dissolved air water main pipe 2.1, the tank body 1 is cuboid, the tank body 1 is divided into a contact chamber 1.1, a separation chamber 1.2, a clear water collection chamber 1.3, a separation chamber 1.2 and the contact chamber 1.1 which are sequentially arranged from left to right in the length direction, a sludge storage chamber 1.4 is arranged above the clear water collection chamber 1.3, a sludge receiving chamber 1.5 is respectively arranged at the left side and the right side of the sludge storage chamber 1.4, the sludge receiving chamber 1.5 is communicated with the sludge storage chamber 1.4, a sludge storage chamber discharge interface 1.41 and a sludge flashboard 1.42 matched with the sludge storage chamber discharge interface 1.41 are arranged on the side surface of the sludge storage chamber 1.4, a contact chamber water homogenizing plate 1.11 is arranged above the bottom surface of the tank body 1 corresponding to the contact chamber 1.1, an emptying interface 1.13 is arranged on the side wall of a contact chamber 1.1 below a contact chamber water-homogenizing plate 1.11, a flow-guiding clapboard 3 inclined towards one side of a separation chamber 1.2 is fixed on the bottom surface of a tank body 1 corresponding to the joint of the adjacent contact chamber 1.1 and the separation chamber 1.2, a slag scraper 4 is arranged on the edge of a port of the tank body 1 corresponding to the position of the separation chamber 1.2, a contact chamber dissolved air water release pipe 2.2 extending into the contact chamber 1.1 from top to bottom is arranged in the contact chamber 1.1, the contact chamber dissolved air water release pipe 2.2 is connected with a dissolved air water main pipe 2.1, a contact chamber dissolved air water release head 2.21 is arranged on the contact chamber dissolved air water release pipe 2.2, a clear water discharging interface 5 is arranged on the front side surface of a clear water collecting chamber 1.3, a clear water collecting chamber sludge discharging interface 6 and a sewage water inlet interface 7 are arranged on the front side of the clear water collecting chamber sludge inlet interface 5, the clear water inlet interface 7 is arranged above the sewage collecting chamber sludge outlet interface 6, the sewage water inlet port 7 is connected with a sewage water inlet pipe 7.1 which penetrates through the clear water collecting chamber 1.3 and the separating chamber 1.2 and is fixed on the upper surface of the contact chamber water homogenizing plate 1.11, a plurality of groups of T-shaped clear water collecting pipe assemblies 5.1 are arranged in the separating chamber 1.2, clear water collecting pipe inlet holes 5.11 are formed in the lower side surface of each T-shaped clear water collecting pipe assembly 5.1, a clear water homogenizing water distributing box 5.2 positioned in the separating chamber 1.2 is fixed on a partition plate between the separating chamber 1.2 and the clear water collecting chamber 1.3, a water outlet of each T-shaped clear water collecting pipe assembly 5.1 is arranged on the clear water homogenizing water distributing box 5.2, a communicating port 5.3 is formed in the partition plate between the separating chamber 1.2 and the clear water collecting chamber 1.3, the T-shaped clear water collecting pipe assemblies 5.1 are communicated with the inner cavity of the clear water homogenizing water distributing box 5.2 through water outlets, and the inner cavity of the clear water distributing box 5.2 is communicated with the clear water collecting chamber 1.3 through the communicating port 5.3.

The bottom surface of separation chamber 1.2 has a plurality of separation chamber silt of being individual toper recessed structure and collects fill 1.21, and the last mouth of all separation chamber silt collection fill 1.21 links together along the homogeneous phase, and every two separation chamber silt are collected and are fought 1.21 and be a set of, and the both ends of a separation chamber silt connecting pipe 1.22 are connected respectively on the adjacent side of two separation chamber silt collection fill 1.21 in every set of, installs separation chamber silt discharge interface 1.23 at the middle part of separation chamber silt connecting pipe 1.22.

Clear water collection room silt that the bottom surface of clear water collection room 1.3 is integral toper concave structure is collected and is fought 1.31, is equipped with in the side of the clear water collection room 1.3 that corresponds clear water collection room silt and collect and fight 1.31 top the clear water outer discharge interface 5 and sewage interface 7 of intaking are equipped with in the side of clear water collection room silt collection fill 1.31 the clear water collection room silt discharge interface 6.

A diversion folded plate 3.1 is fixed at the upper end part of the diversion partition plate 3, the diversion folded plate 3.1 inclines towards one side of the separation chamber 1.2 adjacent to the diversion folded plate, and the diversion folded plate 3.1 is connected with the diversion partition plate 3 at an obtuse angle.

T shape clear water collecting pipe subassembly 5.1 collects house steward 5.12, clear water including the clear water and collects connecting pipe 5.13 and clear water and collect branch pipe 5.14, collects house steward 5.12, clear water at the clear water and collects connecting pipe 5.13 and clear water and collect branch pipe 5.14 on the downside all seted up clear water inlet opening 5.11, and the clear water collects house steward 5.12 and clear water and collect the middle part of connecting pipe 5.13 and be the vertical fixation, collects the equal vertical fixation in the inside and outside both ends left and right sides of connecting pipe 5.13 at the clear water and has the clear water to collect branch pipe 5.14, the house steward 5.12 is parallel arrangement with the clear water collection branch pipe 5.14.

The length-width ratio of the separation chamber 1.2 is (1.5:1) - (1: 5).

When the invention works, sewage to be treated is connected into a sewage inlet port 7, the sewage is connected into a water homogenizing chamber of a left contact chamber 1.1 and a right contact chamber 1.1 through a sewage inlet pipe 7.1 (the space between a contact chamber water homogenizing plate 1.11 and a contact chamber 1.1 bottom plate is called as the water homogenizing chamber), the sewage flows upwards through a contact chamber water homogenizing hole 1.12 to reduce the flow rate of the sewage, the sewage is mixed with dissolved air water sprayed out of a contact chamber dissolved air water release head 2.21 above the contact chamber water homogenizing plate 1.11, micro bubbles in the dissolved air water are adhered on suspended matters in the sewage to form air-adhered flocs with the specific gravity of less than 1, the air-adhered flocs float to the liquid level to form scum under the action of buoyancy in a separation chamber 1.2 to complete solid-liquid separation, the scum is scraped into a corresponding sludge receiving chamber 1.5 by a scum scraper 4 and then flows into a sludge storage chamber 1.4 to be stored, the sludge storage chamber 1.42 is pulled upwards after the scum is stored to a certain depth, the sludge is discharged out of the sludge storage chamber through a sludge flashboard 1.41, and after the discharging is finished, the sludge storage chamber flashboard 1.42 is put down, so that the sludge storage chamber flashboard 1.42 blocks the sludge storage chamber discharging interface 1.41.

In the separation chamber 1.2, the clear water at the bottom layer after the solid-liquid separation enters the T-shaped clear water collecting pipe assembly 5.1 through the clear water collecting main pipe 5.12, the clear water collecting connecting pipe 5.13 and the clear water collecting branch pipe 5.14, and then enters the clear water uniformly-distributed box 5.2, and finally is discharged through the clear water discharging port 5.

A separating chamber gas-dissolved water release pipe 2.3 extending into the separating chamber 1.2 from top to bottom is arranged in the separating chamber, the separating chamber gas-dissolved water release pipe 2.3 is connected with a gas-dissolved water main pipe 2.1, a separating chamber gas-dissolved water release head 2.31 is arranged on the separating chamber gas-dissolved water release pipe 2.3, and gas-dissolved water is sprayed in the separating chamber gas-dissolved water release head 2.31. Through directly disposing the inside of separator 1.2 with dissolving gas water, greatly improved the degree of depth and the concentration of dissolving gas water in separator 1.2 inside, make the bubble layer degree of depth in separator 1.2 can reach 1000~1500mm, this bubble layer can bond the suspended solid in the sewage, can also block the suspended solid in the sewage through filterable mode simultaneously, can make on the suspended solid that does not accomplish solid-liquid separation in contact chamber 1.1 and on the floc that is sinking and apply the microbubble and the come-up like this, further improve the solid-liquid separation effect.

After the high-efficiency dissolved air flotation device works for a long time, sludge deposited in the separating chamber sludge collecting hopper 1.21 can be discharged through the shared separating chamber sludge connecting pipe 1.22 and the separating chamber sludge discharging interface 1.23. The sludge sediment deposited in the clear water collection chamber sludge collection bucket 1.31 can be discharged outside through the clear water collection chamber sludge discharge interface 6.

According to the invention, 2-3 groups of T-shaped clear water collecting pipe assemblies 5.1 are arranged in each separation chamber 1.2, so that the running distance of clear water in each pipe can be greatly shortened, and the clear water collecting efficiency is greatly improved.

In the invention, as the tank body 1 is divided into the contact chamber 1.1, the separation chamber 1.2, the clear water collection chamber 1.3, the separation chamber 1.2 and the contact chamber 1.1 which are sequentially arranged from left to right in the length direction, the length-width ratio of the separation chamber 1.2 is greatly reduced, compared with the prior art, the length-width ratio of the separation chamber 1.2 is reduced to be less than 1/2 of the length-width ratio of the separation chamber in the prior art, and the depth of a bubble layer at the tail end of the separation chamber 1.2 is greatly improved, so that scum at the tail end of the separation chamber 1.2 cannot easily fall off due to sufficient bubble community supporting effect in the scraping process, the effluent water quality is greatly improved, and the air floatation treatment efficiency is greatly improved.

In the invention, the clean water uniform water distribution box 5.2 positioned in the separation chamber 1.2 is fixed on the partition plate between the separation chamber 1.2 and the clean water collection chamber 1.3, the water outlet of the T-shaped clean water collection pipe assembly 5.1 is arranged on the clean water uniform water distribution box 5.2, the partition plate between the separation chamber 1.2 and the clean water collection chamber 1.3 is provided with a communication port 5.3, the T-shaped clean water collection pipe assembly 5.1 is communicated with the inner cavity of the clean water uniform water distribution box 5.2 through the water outlet thereof, and the inner cavity of the clean water uniform water distribution box 5.2 is communicated with the clean water collection chamber 1.3 through the communication port 5.3. The T-shaped clear water collecting pipe component 5.1 close to the clear water discharging port 5 and the T-shaped clear water collecting pipe component 5.1 far away from the clear water discharging port 5 have the same flow velocity, the fluctuation of the water body in the separation chamber 1.2 is reduced, and the quality of the discharged water is greatly improved.