Device for carrying out layered screening on nanoparticles by virtue of nanobubbles

Abstract

The utility model discloses a device for performing layered screening on nanoparticles by means of nanobubbles, which relates to the technical field of sewage treatment and comprises a first tank body, and a first aeration disc is arranged in the first tank body; the upper part of each second tank body is connected with the upper part of the first tank body through a connecting pipe, so that sewage in the first tank body enters each second tank body in a shunting manner, and a second aeration disc is arranged in each second tank body; and the impeller chamber is arranged at the top end in the first tank body, and an impeller is arranged in the impeller chamber. According to the utility model, the stirring blades are driven to move by sewage, so that the sewage in the first tank body rotates and circularly passes through the upper part of the first aeration disc, the separation effect of nano particle pollutants in the sewage is improved, and sewage supernatant after primary separation and screening is shunted and enters each second tank body with smaller diameter; secondary separation and screening are carried out, so that the separation and screening efficiency of the sewage can be further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a device for stratifying and screening nanoparticles by means of nanobubbles. Background Art

[0002] With the continuous development of industry, industrial sewage is also gradually increasing. Industrial sewage contains certain tiny particle pollutants. If it is directly discharged, it will have an adverse impact on the environment. The air flotation equipment is one of the sewage treatment equipment. The flotation principle is mainly based on the principle of liquid surface tension, which makes the nano-particle pollutants in the sewage adhere to the small bubbles, so that the nano-particle pollutants and the sewage are separated.

[0003] In the prior art, when nanobubbles are used to treat sewage, the position where the bubbles are filled is fixed, and it is difficult for the bubbles to diffuse to other positions in the sewage treatment tank. It is difficult for the bubbles to fully contact the sewage, resulting in uneven distribution of bubbles in the tank, which in turn makes the efficiency and effect of the stratified screening treatment of sewage by bubbles low. Utility Model Content

[0004] The purpose of the utility model is to solve the problems in the prior art and to propose a device that can make nano bubbles fully contact with sewage, thereby improving the separation effect of nano particle pollutants in sewage.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A device for stratifying and screening nanoparticles by means of nanobubbles, comprising:

[0007] A first tank body, wherein a first aeration plate is provided inside the first tank body;

[0008] A plurality of second tank bodies, the upper part of each second tank body is connected to the upper part of the first tank body through a connecting pipe, so that the sewage inside the first tank body is diverted into each second tank body, and each second tank body is provided with a second aeration plate;

[0009] An impeller chamber is arranged at the top end of the first tank body, and an impeller is arranged inside the impeller chamber;

[0010] A rotating rod is arranged inside the first tank body, the upper end of the rotating rod extends to the inside of the impeller chamber to be connected to the impeller, and the lower end of the rotating rod is provided with a stirring blade;

[0011] The water inlet pipe has one end inserted into the impeller chamber so that the sewage drives the impeller to rotate, thereby causing the rotating rod to drive the stirring blade to move;

[0012] The second aeration plate and the first aeration plate are connected to the bubble generator, so that the first aeration plate fills bubbles into the first tank body, and the second aeration plate fills bubbles into the second tank body.

[0013] Furthermore, the water inlet pipe penetrates from a side wall of the first tank body and is connected to the impeller chamber, and the pipe mouth of the water inlet pipe does not coincide with the center line of the impeller, so that sewage is sprayed out from the pipe mouth of the water inlet pipe to drive the impeller to rotate.

[0014] Furthermore, a guide pipe is provided on one side of the impeller chamber, the water inlet of the guide pipe is in the same straight line as the water outlet of the water inlet pipe, and the lower end of the guide pipe is located above the first aeration plate.

[0015] Furthermore, the stirring blade is in the shape of a vertical plate.

[0016] Furthermore, at least two first aeration plates are provided and are distributed in an annular manner at intervals at the bottom end of the first tank body.

[0017] Furthermore, a second water outlet pipe is provided at the bottom of one side wall of the first tank body.

[0018] Furthermore, a first water outlet pipe is provided at the bottom of one side of each second tank body.

[0019] Furthermore, the second tank body is in the shape of a long tube.

[0020] Furthermore, the bubble generator is a micro-nano bubble generator, the bubble generator is connected to a bubble generator connecting pipe, and the bubble generator connecting pipe connects the second aeration disk and the first aeration disk.

[0021] Furthermore, the bubble generator connecting pipe is arc-shaped, and a plurality of first hoses are provided on the bubble generator connecting pipe. Each first hose penetrates into a second tank body and is connected to a second aeration plate. A second hose is provided on the bubble generator connecting pipe. The second hose penetrates into the first tank body and is connected to the first aeration plate.

[0022] The beneficial effects of the utility model are:

[0023] In the utility model, the device for stratifying and screening nanoparticles by means of nanobubbles drives the stirring blade to move through the sewage sprayed from the sewage inlet pipe port, thereby causing the sewage in the first tank body to rotate and circulate above the first aeration plate, so that the bubbles are fully mixed into the sewage, thereby improving the separation effect of nanoparticle pollutants in the sewage, and the upper layer of the sewage after the first separation and screening is diverted into the interior of the second tank body with a smaller diameter for secondary separation and screening, so that the bubbles and the sewage are fully in contact, thereby improving the mixing effect of the sewage and the bubbles and improving the separation and screening efficiency of the sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1This is a schematic diagram of the three-dimensional structure of a device for stratifying and screening nanoparticles by means of nanobubbles proposed by the utility model;

[0025] Figure 2 This is a schematic cross-sectional structure diagram of a device for stratifying and screening nanoparticles by means of nanobubbles proposed by the utility model;

[0026] Figure 3 This is a schematic diagram of the cross-sectional structure of the impeller chamber of a device for stratifying and screening nanoparticles by means of nanobubbles proposed by the utility model;

[0027] Figure 4 This is a top view of the structure of the impeller chamber of a device for stratifying and screening nanoparticles by means of nanobubbles proposed by the utility model.

[0028] In the figure: 1 first tank body, 2 second tank body, 3 connecting pipe, 4 first water outlet pipe, 5 bubble generator connecting pipe, 6 water inlet pipe, 7 impeller chamber, 8 impeller, 9 rotating rod, 10 stirring blade, 11 guide pipe, 12 second aeration plate, 13 first aeration plate, 14 second water outlet pipe. DETAILED DESCRIPTION

[0029] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0032] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0033] Reference Figure 1-4 , a device for stratifying and screening nanoparticles with the help of nanobubbles, is applied to micro-nano bubble sewage treatment technology to make the micro-nano bubbles fully contact with sewage, thereby improving the effect of micro-nano bubbles in separating nanoparticle pollutants in sewage.

[0034] The device for stratifying and screening nanoparticles by means of nanobubbles comprises a first tank body 1, a plurality of second tank bodies 2, an impeller chamber 7, a rotating rod 9 and a water inlet pipe 6;

[0035] The first tank body 1 is cylindrical, which is convenient for the sewage to rotate inside it and mix with the bubbles. The water inlet pipe 6 penetrates from the top of one side wall of the first tank body 1, and the pipe mouth is connected to the impeller chamber 7 fixed at the top of the first tank body 1, so that the sewage can be discharged into the impeller chamber 7. Since the pipe mouth of the water inlet pipe 6 does not coincide with the center line of the impeller 8 inside the impeller chamber 7, the sewage sprayed from the pipe mouth of the water inlet pipe 6 can impact the blades of the impeller 8, thereby rotating the impeller 8. Since the upper end of the rotating rod 9 penetrates the impeller chamber 7 and is connected to the impeller 8, the impeller 8 can drive the rotating rod 9 to rotate, thereby driving the stirring blade 10 fixed at the lower end of the rotating rod 9 to move. Since the stirring blade 10 is in the shape of a vertical plate, it can drive the sewage inside the first tank body 1 to rotate horizontally inside it. A first aeration plate 13 is provided at the bottom end of the first tank body 1, and the rotating sewage will circulate above the first aeration plate 13, so that the bubbles discharged from the first aeration plate 13 are fully mixed into the sewage, and a plurality of first aeration plates 13 are provided, and the plurality of first aeration plates 13 are annularly distributed at the bottom end of the first tank body 1, which can further improve the mixing effect of the bubbles and the sewage, and a guide pipe 11 is provided on one side of the impeller chamber 7, and the water inlet direction of the guide pipe 11 is located in the same straight line as the water outlet direction of the water inlet pipe 6, which can make the sewage drive the impeller 8 to rotate inside the impeller chamber 7, and enter the first tank body 1 through the guide pipe 11, and because the lower end of the guide pipe 11 is located above the first aeration plate 13, the sewage will be directly mixed with the bubbles discharged from the first aeration plate 13, thereby improving the mixing effect.

[0036] The second tank body 2 is in the shape of a cylindrical tube, and since the upper part of each second tank body 2 is connected to the upper part of the first tank body 1 through a connecting pipe 3, the upper sewage in the first tank body 1 that has been separated by bubbles can be diverted into the interior of each second tank body 2. A second aeration plate 12 is provided at the bottom end of each second tank body 2, and each second tank body 2 can screen and separate a small part of the sewage again to improve the separation and screening effect of the sewage.

[0037] The bubble generator is a micro-nano bubble generator, which is connected to a bubble generator connecting pipe 5, which is arc-shaped, and is provided with a plurality of first hoses, each of which penetrates into a second tank body 2 and is connected to a second aeration disk 12, and a second hose is provided on the bubble generator connecting pipe 5, which penetrates into the first tank body 1 and is connected to a first aeration disk 13. The micro-nano bubble generator generates micro-nano bubbles, and then fills the first tank body 1 and the second tank body 2 with micro-nano bubbles through the bubble generator connecting pipe 5, the hose, the second aeration disk 12 and the first aeration disk 13 to separate and screen sewage.

[0038] A second water outlet pipe 14 is provided at the bottom of one side wall of the first tank body 1, and a first water outlet pipe 4 is provided at the bottom of one side of the second tank body 2. The sewage in the first tank body 1 after being separated and screened by micro-nano bubbles can be discharged through the second water outlet pipe 14, and the sewage in the second tank body 2 after multiple separations and screenings can be discharged through the first water outlet pipe 4, thereby improving the sewage treatment effect.

[0039] The working principle of the device for stratifying and screening nanoparticles by means of nanobubbles is as follows: sewage is poured through the water inlet pipe 6, and the sewage enters the impeller chamber 7. Since the direction of the pipe mouth of the water inlet pipe 6 does not coincide with the center line of the impeller 8 inside the impeller chamber 7, the sewage sprayed from the pipe mouth of the water inlet pipe 6 can impact the blades of the impeller 8, thereby rotating the impeller 8. The impeller 8 drives the stirring blade 10 to move through the rotating rod 9. Since the stirring blade 10 is in the shape of a vertical plate, it can drive the sewage inside the first tank body 1 to rotate horizontally inside it. The rotating sewage will circulate above the first aeration plate 13, so that the bubbles discharged from the first aeration plate 13 are fully mixed into the sewage. After the sewage inside the first tank body 1 is separated and screened, the lower layer of separated sewage can be discharged through the second outlet pipe 14.

[0040] After the first separation and screening, the upper layer of the sewage liquid is diverted through the connecting pipe 3 into each second tank body 2. The second aeration plate 12 inside each second tank body 2 performs a second separation and screening on the incoming sewage. Moreover, since the sewage is diverted and processed by multiple second tank bodies 2, the cylindrical second tank body 2 has a smaller diameter, which can make the bubbles and sewage fully contact, thereby improving the mixing effect of the sewage and the bubbles, and improving the separation and screening efficiency of the sewage. After the sewage in the second tank body 2 is separated and screened, the separated sewage in the lower layer will be discharged through the first outlet pipe 4.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for stratifying and screening nanoparticles by means of nanobubbles, characterized in that: include: A first tank body (1), wherein a first aeration plate (13) is provided inside the first tank body (1); A plurality of second tank bodies (2), the upper part of each second tank body (2) being connected to the upper part of the first tank body (1) via a connecting pipe (3), so that sewage inside the first tank body (1) is diverted into the interior of each second tank body (2), and a second aeration plate (12) is provided inside each second tank body (2); An impeller chamber (7) is arranged at the top end of the first tank body (1), and an impeller (8) is arranged inside the impeller chamber (7); A rotating rod (9) is arranged inside the first tank body (1), the upper end of the rotating rod (9) extends into the impeller chamber (7) and is connected to the impeller (8), and the lower end is provided with a stirring blade (10); A water inlet pipe (6) has one end inserted into the impeller chamber (7) so that sewage drives the impeller (8) to rotate, thereby causing the rotating rod (9) to drive the stirring blade (10) to move; The second aeration plate (12) and the first aeration plate (13) are connected to a bubble generator so that the first aeration plate (13) fills bubbles into the first tank body (1) and the second aeration plate (12) fills bubbles into the second tank body (2).

2. The device for stratifying and screening nanoparticles by means of nanobubbles according to claim 1, characterized in that: The water inlet pipe (6) penetrates from a side wall of the first tank body (1) and is connected to the impeller chamber (7). The direction of the pipe opening of the water inlet pipe (6) does not coincide with the center line of the impeller (8), so that sewage is sprayed out from the pipe opening of the water inlet pipe (6) to drive the impeller (8) to rotate.

3. The device for stratifying and screening nanoparticles by means of nanobubbles according to claim 1, characterized in that: A guide pipe (11) is provided on one side of the impeller chamber (7), the water inlet of the guide pipe (11) is located in the same straight line as the water outlet of the water inlet pipe (6), and the lower end of the guide pipe (11) is located above the first aeration plate (13).

4. The device for stratifying and screening nanoparticles by means of nanobubbles according to claim 1, characterized in that: The stirring blade (10) is in the shape of a vertical plate.

5. The device for stratifying and screening nanoparticles by means of nanobubbles according to claim 1, characterized in that: At least two first aeration plates (13) are provided and are distributed in an annular manner at intervals at the bottom end of the first tank body (1).

6. The device for stratifying and screening nanoparticles by means of nanobubbles according to claim 1, characterized in that: A second water outlet pipe (14) is provided at the bottom of a side wall of the first tank body (1).

7. The device for stratifying and screening nanoparticles by means of nanobubbles according to claim 1, characterized in that: A first water outlet pipe (4) is provided at the bottom of one side of each of the second tank bodies (2).

8. The device for stratifying and screening nanoparticles by means of nanobubbles according to claim 1, characterized in that: The second tank body (2) is in the shape of a long tube.

9. The device for stratifying and screening nanoparticles by means of nanobubbles according to claim 1, characterized in that: The bubble generator is a micro-nano bubble generator, and the bubble generator is connected to a bubble generator connecting pipe (5), and the bubble generator connecting pipe (5) connects the second aeration disk (12) and the first aeration disk (13).

10. The device for stratifying and screening nanoparticles by means of nanobubbles according to claim 9, characterized in that: The bubble generator connecting pipe (5) is arc-shaped, and is provided with a plurality of first hoses, each of which penetrates into the interior of the second tank body (2) and is connected to the second aeration plate (12). The bubble generator connecting pipe (5) is provided with a second hose, and the second hose penetrates into the interior of the first tank body (1) and is connected to the first aeration plate (13).

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