CN216337041U

CN216337041U - Efficient sewage treatment air supporting device

Info

Publication number: CN216337041U
Application number: CN202123083901.6U
Authority: CN
Inventors: 李昌辉; 吴科财; 陈璞
Original assignee: Henan Greenland Yuhong Environmental Protection Technology Co ltd
Current assignee: Henan Greenland Yuhong Environmental Protection Technology Co ltd
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-04-19
Anticipated expiration: 2031-12-09

Abstract

The utility model provides an efficient sewage treatment air floatation device, which comprises a reaction tank, wherein the reaction tank is sequentially divided into a liquid inlet cavity, a mixing cavity, an air floatation cavity and a sewage discharge cavity; the liquid inlet cavity is communicated with the mixing cavity through a liquid passing channel at the lower end of the liquid inlet partition plate, and the liquid inlet partition plate and the inner wall of the corresponding reaction tank are provided with sieving transverse plates at intervals from top to bottom; a material mixing tank is arranged at the liquid inlet end of the reaction tank, and a distribution pipe group connected with the material mixing tank extends into the bottom of the mixing cavity; a liquid guide partition plate is arranged between the air flotation cavity and the mixing cavity, and the top end of the liquid guide partition plate is bent towards the air flotation cavity; a material separating clapboard is arranged between the air flotation cavity and the sewage draining cavity; a plurality of sewage draining holes are uniformly distributed along the lower part of the side wall of the reaction tank and are communicated with a sewage draining pump set through a sewage draining pipeline. The air flotation device has a reasonable reaction tank structure, and the oxygen-enriched air, the medicament and the sewage are fully mixed in the mixing cavity through the material mixing tank and the distribution pipe group, so that the gas-liquid contact area is increased, and the air flotation efficiency is improved.

Description

Efficient sewage treatment air supporting device

Technical Field

The utility model relates to the technical field of industrial wastewater purification treatment, in particular to an efficient sewage treatment air floatation device.

Background

In the industrial wastewater treatment process, the wastewater can be discharged and recycled after being strictly treated to reach the standard, and partial impurities in the wastewater are removed by using an air flotation device in an air flotation mode after floating to the water surface under the action of chemical agents, so that the method is one of common methods and equipment for wastewater treatment. The existing air floatation device has some defects in the using process, firstly, the treatment efficiency is low, the added medicament cannot be fully mixed with sewage, and part of impurities cannot be effectively floated and removed; secondly, when the floating dirt is removed, the separation effect is not good.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an efficient sewage treatment air floatation device to solve the problem of the prior art.

In order to solve the technical problems, the utility model provides an efficient sewage treatment air floatation device, which comprises:

the reaction tank is internally divided into a liquid inlet cavity, a mixing cavity, an air flotation cavity and a sewage draining cavity from right to left in sequence;

the liquid inlet cavity is communicated with the mixing cavity through a liquid passing channel at the lower end of the liquid inlet partition plate, and the liquid inlet partition plate and the inner wall of the corresponding reaction tank are provided with sieving transverse plates at intervals from top to bottom;

a material mixing tank is arranged at one liquid inlet end of the reaction tank, and a distribution pipe group connected with the material mixing tank extends into the bottom of the mixing cavity;

a liquid guide partition plate is arranged between the air flotation cavity and the mixing cavity, and the top end of the liquid guide partition plate is lower than the upper edge of the reaction tank and is bent towards the air flotation cavity;

a material separating partition plate is arranged between the air flotation cavity and the sewage discharging cavity, and the top end of the liquid separating partition plate is lower than the upper edge of the reaction tank;

and a plurality of sewage draining holes are uniformly distributed along the lower part of the side wall of the reaction tank and are communicated with a sewage draining pump set through a sewage draining pipeline.

Preferably, the distribution pipe group comprises a main pipe connected with the mixing tank and a branch pipe vertically arranged with the main pipe, a plurality of feeding pipes are arranged at equal intervals along the branch pipe, and a distribution pipe is arranged at the tail end of each feeding pipe.

Preferably, the top of the material distribution partition plate is bent towards the air flotation cavity to form a buckle plate, and the buckle plate is inclined downwards from left to right to form a slope; divide the material baffle and form the drainage chamber with the buckle downside, and be equipped with the fluid-discharge tube in the drainage chamber.

Preferably, the drain pipe comprises a main pipe arranged along the width direction of the drainage cavity and a connecting pipe arranged perpendicular to the main pipe, and the main pipe is provided with a plurality of water inlet holes.

Preferably, a scraper component is arranged above the pinch plate in the reaction groove; the scraper component comprises two groups of transmission shafts which are arranged in parallel along the width direction of the reaction tank, two ends of each transmission shaft are sleeved with transmission chain wheels, and two groups of transmission chain wheels on the same side are sleeved with transmission chains; at least one group of scraping plates are arranged on the two groups of transmission chains; a driving motor is arranged in match with a transmission shaft of the device.

Preferably, a liquid return pipe is further arranged in the reaction tank air flotation cavity along the width direction of the reaction tank air flotation cavity.

Preferably, a liquid return pipeline is arranged on the outer side of the reaction tank and matched with the liquid return pipe, and the tail end of the liquid return pipeline is communicated with the mixing tank; the liquid return pipeline is connected with a liquid return pump set, and a liquid outlet of the liquid return pump set is provided with a ball valve.

Preferably, the liquid return pipeline is further provided with a branch pipeline, and a stop valve and a flowmeter are connected to the branch pipeline of the liquid return pipeline.

The technical scheme of the utility model at least comprises the following technical effects:

1. according to the air floatation device, the oxygen-enriched air, the medicament and the sewage are fully mixed in the mixing cavity through the material mixing tank and the distribution pipe group, so that the gas-liquid contact area is increased, and the air floatation efficiency is improved;

2. the material distributing partition plate of the embodiment of the application forms a non-physically separated drainage cavity in the air flotation cavity, sewage subjected to air flotation in the air flotation cavity is blocked by the buckle plate at the tail part of the air flotation cavity and then enters the drainage cavity, and the sewage is discharged out of the reaction tank through the liquid discharge pipe;

3. according to the scraper component, the driving motor drives the transmission chain to rotate, so that the scraper is driven to be driven along with the transmission of the transmission chain, the scraper is matched with the slope of the pinch plate, and the dirt foam can be periodically and discontinuously scraped backwards to enter the dirt discharge cavity to be discharged; it should be noted that for some special sewage, such as sewage containing rare and precious metals, the rare and precious metals can be wrapped in bubbles by adding a foaming agent and a flotation agent, so that the rare and precious metals are separated by the scraper assembly and enter the sewage discharge cavity for separation;

4. in the embodiment of the application, sewage in the air floatation cavity can be returned to the material mixing tank through the liquid return pump group and the liquid return pipeline, and enters the mixing cavity through the distribution pipe group to carry out circulating sewage removal, so that the sewage treatment efficiency is improved; injecting oxygen-enriched air or adding medicament into the reaction tank through a liquid return pipeline.

Drawings

FIG. 1 is a front view of an air flotation device for sewage treatment in an embodiment of the present application;

FIG. 2 is a schematic view of the internal structure of a reaction tank in the example of the present application;

FIG. 3 is a top view of an air flotation device for sewage treatment in an embodiment of the present application;

FIG. 4 is a right side view of the air flotation device for sewage treatment in the embodiment of the present application;

FIG. 5 is an end view of the internal structure of the air flotation device for sewage treatment in the embodiment of the present application;

fig. 6 is an axial sectional view of a liquid return pipe in the embodiment of the present application.

Reference numerals:

100. an air floatation device; 1. a reaction tank; 101. a liquid inlet clapboard; 102. screening a transverse plate; 103. a liquid-conducting partition plate; 104. a liquid inlet cavity; 105. a mixing chamber; 106. an air flotation cavity; 107. a material distributing clapboard; 108. a blowdown chamber; 109. a liquid discharge pipe; 110. a sewage draining hole; 111. a liquid passing channel; 112. a liquid return pipe; 1121. a liquid passing hole; 2. a squeegee assembly; 201. a drive sprocket; 202. a drive chain; 203. a squeegee; 204. tensioning an adjusting rod; 205. a drive motor; 206. a drive shaft; 3. a liquid inlet pipe; 4. a mixing tank; 5. a dispensing tube set; 501. a main pipe; 502. a branch pipe; 503. a feed pipe; 504. a distributing pipe; 6. a liquid return system; 7. a liquid return pump set; 8. a ball valve; 9. a branch line; 10. a stop valve; 11. a flow meter; 12. a liquid return pipeline; 13. a butterfly valve; 14. a blowdown line; 15. a sewage pump set.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 6 of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the utility model, are within the scope of the utility model.

An efficient sewage treatment air floatation device, an air floatation device 100 comprises a reaction tank 1, wherein the reaction tank is sequentially divided into a liquid inlet cavity 104, a mixing cavity 105, an air floatation cavity 106 and a sewage discharge cavity 108 from right to left; the liquid inlet cavity is communicated with the mixing cavity through a liquid passing channel 111 at the lower end of a liquid inlet partition plate 101, and sieving transverse plates 102 are distributed on the liquid inlet partition plate and the inner wall of the corresponding reaction tank at intervals from top to bottom in a staggered manner; a mixing tank 4 is arranged at the liquid inlet end of the reaction tank, and a distribution pipe group 5 connected with the mixing tank extends into the bottom of the mixing cavity; a liquid guide partition plate 103 is arranged between the air flotation cavity and the mixing cavity, and the top end of the liquid guide partition plate is lower than the upper edge of the reaction tank and is bent towards the air flotation cavity; a material separating partition plate 107 is arranged between the air flotation cavity and the sewage draining cavity, and the top end of the material separating partition plate is lower than the upper edge of the reaction tank; a plurality of sewage discharge holes 110 are uniformly distributed along the lower part of the side wall of the reaction tank and are communicated with a sewage discharge pump group 15 through a sewage discharge pipeline 14.

Specific examples are as follows, as shown in FIGS. 1-6: an efficient sewage treatment air floatation device, an air floatation device 100 comprises a reaction tank 1, wherein the reaction tank is sequentially divided into a liquid inlet cavity 104, a mixing cavity 105, an air floatation cavity 106 and a sewage discharge cavity 108 from right to left; the liquid inlet cavity is communicated with the mixing cavity through a liquid passing channel 111 at the lower end of a liquid inlet partition plate 101, screening transverse plates 102 are distributed on the liquid inlet partition plate and the inner wall of the corresponding reaction tank at intervals from top to bottom in a staggered manner, a liquid inlet pipe 3 is matched with the liquid inlet cavity, and sewage entering the liquid inlet cavity through the liquid inlet pipe can be primarily separated through the screening transverse plates staggered in the liquid inlet cavity to remove larger particle impurities; a mixing tank 4 is arranged at one end of the liquid inlet of the reaction tank, a distribution pipe group 5 connected with the mixing tank extends into the bottom of the mixing cavity, oxygen-enriched air can be injected into the mixing cavity through external equipment, the oxygen-enriched air can be injected into the bottom of the mixing cavity through the distribution pipe group to be uniformly mixed with the sewage liquid inlet, and a medicament is added through the mixing tank and the distribution pipe group in a matching manner, so that the uniform addition of the medicament is realized; a liquid guide partition plate 103 is arranged between the air flotation cavity and the mixing cavity, the top end of the liquid guide partition plate is lower than the upper edge of the reaction tank and is bent towards the air flotation cavity, and the sewage after oxygen enrichment is injected into the air flotation cavity from the upper end of the liquid guide partition plate to carry out air flotation reaction; a material separating partition plate 107 is arranged between the air flotation cavity and the sewage discharging cavity, the top end of the material separating partition plate is lower than the upper edge of the reaction tank, larger sludge particles in the air flotation cavity are deposited at the bottom of the air flotation cavity, and fine particles or light particles float above the liquid level and enter the sewage discharging cavity through the upper edge of the material separating partition plate to be discharged; a plurality of sewage draining holes 110 are uniformly distributed along the lower part of the side wall of the reaction tank, butterfly valves 13 are correspondingly arranged with the sewage draining holes, the arrangement of the sewage draining holes is respectively arranged corresponding to the liquid inlet cavity, the air flotation cavity and the sewage draining cavity, the sewage draining holes are communicated with a sewage draining pump set 15 through a sewage draining pipeline 14, and sludge sundries deposited at the bottom of the reaction tank can be discharged through the sewage draining pump set. In this embodiment, the fault rate of reaction tank can be reduced to the reaction tank structure among the air supporting device, and the mixing efficiency of sewage and oxygen-enriched air and the mixing efficiency of medicament and sewage can improve, and the treatment effeciency obtains improving during the air supporting, and the more thorough of filth air supporting. In a preferred embodiment of the present application, as shown in fig. 3 and 4, the distribution pipe assembly 5 comprises a main pipe 501 connected to the mixing bowl and a branch pipe 502 arranged perpendicular to the main pipe, wherein a plurality of feeding pipes 503 are arranged at equal intervals along the branch pipe, and the end of each feeding pipe is provided with a distribution pipe 504. In this embodiment, material mixing tank and distribution nest of tubes realize that oxygen boosting air, medicament and sewage carry out the intensive mixing in the hybrid chamber to improve gas-liquid area of contact, improve air supporting efficiency.

In a preferred embodiment of the present application, as shown in fig. 2 and 3, the top of the material separating partition 107 is bent toward the air floating cavity to form a buckle plate, and the buckle plate is inclined downwards from left to right to form a slope; a drainage cavity is formed by the material distributing partition plate and the lower side of the pinch plate, and a liquid discharge pipe 109 is arranged in the drainage cavity; the fluid-discharge tube includes the connecting pipe that is responsible for and is responsible for the perpendicular setting with being responsible for along what arrange water cavity width direction set up, and is responsible for and has offered a plurality of inlet openings on the part. In this embodiment, divide the material baffle through this kind of structure and form a non-physics partitioned drainage chamber with the air supporting intracavity, the sewage through the air supporting in the air supporting intracavity blocks through the buckle at air supporting chamber afterbody and handles back sewage and enter the drainage chamber, discharges the reaction tank through the fluid-discharge tube.

In a preferred embodiment of the present application, as shown in fig. 1 and 2, the top of the material separating partition 107 is bent toward the air floating cavity to form a buckle plate, and the buckle plate is inclined downwards from left to right to form a slope; a scraper component 2 is arranged above the pinch plate in the reaction tank 1; the scraper component comprises two groups of transmission shafts 206 which are arranged in parallel along the width direction of the reaction tank, two ends of each transmission shaft are sleeved with transmission chain wheels 201, and two groups of transmission chain wheels on the same side are sleeved with transmission chains 202; at least one group of scraping plates 203 are arranged on the two groups of transmission chains; a driving motor 205 is matched with a transmission shaft of the motor; a tension adjusting rod 204 is matched with a transmission shaft of the chain transmission device, and the tension adjusting rod can adjust the tension of the transmission chain. In the embodiment, the driving motor drives the transmission chain to rotate, so that the scraper is driven to be transmitted along with the transmission chain, the scraper is matched with the slope of the pinch plate, and the dirt foam can be periodically and discontinuously scraped backwards to enter the dirt discharge cavity to be discharged; it should be noted that for some special sewage, such as sewage containing rare and precious metals, the rare and precious metals can be wrapped in air bubbles by adding a foaming agent and a flotation agent, so that the rare and precious metals are separated by the scraper assembly and enter the sewage discharge cavity for separation.

In a preferred embodiment of the present application, as shown in fig. 1 and fig. 3, a liquid return pipe 112 is further disposed in the air flotation cavity of the reaction tank along the width direction thereof, and the liquid return pipe is provided with a plurality of liquid passing holes 1121 along the bottom of the pipe body; a liquid return pipeline 12 is arranged outside the reaction tank and matched with the liquid return pipe, and the tail end of the liquid return pipeline is communicated with the mixing tank; a liquid return pump group 7 is connected to the liquid return pipeline, a ball valve 8 is arranged at a liquid outlet of the liquid return pump group, sewage in the air floatation cavity can be returned to the material mixing tank through the liquid return pump group and the liquid return pipeline, and the sewage enters the mixing cavity through the distribution pipe group to be subjected to circulating sewage removal, so that the sewage treatment efficiency is improved; the liquid return pipeline is also provided with a branch pipeline 9, and a stop valve 10 and a flowmeter 11 are connected to the branch pipeline of the liquid return pipeline. In this embodiment, oxygen-enriched air or an additive is injected into the reaction tank through the liquid return pipeline.

The use method or the working principle of the utility model are as follows:

the liquid inlet pipe is arranged in cooperation with the liquid inlet cavity, and sewage entering the liquid inlet cavity through the liquid inlet pipe can be primarily separated through the screening transverse plates arranged in the liquid inlet cavity in a staggered mode so as to remove larger particle impurities; a mixing tank is arranged at one end of the reaction tank for feeding liquid, a distribution pipe group connected with the mixing tank extends to the bottom of the mixing cavity, oxygen-enriched air can be injected into the mixing tank through external equipment, the oxygen-enriched air can be injected into the bottom of the mixing cavity through the distribution pipe group to be uniformly mixed with the sewage feeding liquid, and a medicament is added through the mixing tank and the distribution pipe group in a matching manner, so that the uniform addition of the medicament is realized; a liquid guide partition plate is arranged between the air flotation cavity and the mixing cavity, the top end of the liquid guide partition plate is lower than the upper edge of the reaction tank and is bent towards the air flotation cavity, and the oxygen-enriched sewage is injected into the air flotation cavity from the upper end of the liquid guide partition plate to carry out air flotation reaction; a material separating partition plate is arranged between the air flotation cavity and the sewage discharging cavity, the top end of the liquid separating partition plate is lower than the upper edge of the reaction tank, larger sludge particles in the air flotation cavity are deposited at the bottom of the air flotation cavity, and fine particles or light particles float above the liquid level and enter the sewage discharging cavity through the upper edge of the material separating partition plate to be discharged; the sewage draining holes are uniformly distributed along the lower part of the side wall of the reaction tank, the arrangement of the sewage draining holes is respectively arranged corresponding to the liquid inlet cavity, the air flotation cavity and the sewage draining cavity, the sewage draining holes are communicated with a sewage draining pump set through a sewage draining pipeline, and sludge sundries deposited at the bottom of the reaction tank can be drained through the sewage draining pump set.

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

The foregoing is a preferred embodiment of the present invention, and it should be noted that it would be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the principles of the utility model, and such modifications and enhancements are also considered to be within the scope of the utility model.

Claims

1. The utility model provides an efficient sewage treatment air supporting device which characterized in that includes:

the reaction tank (1) is internally divided into a liquid inlet cavity (104), a mixing cavity (105), an air flotation cavity (106) and a sewage discharge cavity (108) from right to left in sequence;

the liquid inlet cavity is communicated with the mixing cavity through a liquid passing channel (111) at the lower end of a liquid inlet partition plate (101), and sieving transverse plates (102) are distributed on the inner wall of the liquid inlet partition plate and the corresponding reaction tank at intervals in a staggered manner from top to bottom;

a mixing tank (4) is arranged at one liquid inlet end of the reaction tank, and a distribution pipe group (5) connected with the mixing tank extends into the bottom of the mixing cavity;

a liquid guide partition plate (103) is arranged between the air flotation cavity and the mixing cavity, and the top end of the liquid guide partition plate is lower than the upper edge of the reaction tank and is bent towards the air flotation cavity;

a material separating partition plate (107) is arranged between the air flotation cavity and the sewage discharging cavity, and the top end of the material separating partition plate is lower than the upper edge of the reaction tank;

a plurality of sewage draining holes (110) are uniformly distributed along the lower part of the side wall of the reaction tank and are communicated with a sewage draining pump set (15) through a sewage draining pipeline (14).

2. The efficient air flotation device for sewage treatment as recited in claim 1, wherein: the distribution pipe group (5) comprises a main pipe (501) connected with the mixing tank and a branch pipe (502) vertically arranged with the main pipe, a plurality of feeding pipes (503) are arranged at equal intervals along the branch pipe, and a distributing pipe (504) is arranged at the tail end of each feeding pipe.

3. The efficient air flotation device for sewage treatment as recited in claim 2, wherein: the top of the material distribution partition plate (107) is bent towards the air flotation cavity to form a buckle plate, and the buckle plate is downwards inclined from left to right to form a slope; divide the material baffle and form the drainage chamber with the buckle downside, and be equipped with fluid-discharge tube (109) in the drainage chamber.

4. The efficient air flotation device for sewage treatment as recited in claim 3, further comprising: the drain pipe comprises a main pipe arranged along the width direction of the drainage cavity and a connecting pipe vertically arranged with the main pipe, and the main pipe part is provided with a plurality of water inlet holes.

5. The efficient air flotation device for sewage treatment as recited in claim 3, further comprising: a scraper component (2) is arranged above the pinch plate in the reaction tank (1); the scraper component comprises two groups of transmission shafts (206) which are arranged in parallel along the width direction of the reaction tank, two ends of each transmission shaft are sleeved with transmission chain wheels (201), and the two groups of transmission chain wheels on the same side are sleeved with transmission chains (202); at least one group of scraping plates (203) are arranged on the two groups of transmission chains; a driving motor is arranged in match with a transmission shaft of the device.

6. The efficient air flotation device for sewage treatment as claimed in any one of claims 1 to 5, wherein: a liquid return pipe (112) is also arranged in the reaction tank air flotation cavity along the width direction.

7. The efficient air flotation device for sewage treatment as recited in claim 6, further comprising: a liquid return pipeline (12) is arranged on the outer side of the reaction tank and matched with the liquid return pipe, and the tail end of the liquid return pipeline is communicated with the mixing tank; a liquid returning pump set (7) is connected on the liquid returning pipeline, and a ball valve (8) is arranged at the liquid outlet of the liquid returning pump set.

8. The efficient air flotation device for sewage treatment as recited in claim 7, further comprising: the liquid return pipeline is also provided with a branch pipeline (9), and a stop valve (10) and a flowmeter (11) are connected to the branch pipeline of the liquid return pipeline.