Dissolved air flotation machine with dissolved air releaser

Abstract

The utility model relates to the technical field of air flotation machines, and discloses a dissolved air flotation machine with a dissolved air releaser, which comprises a sewage tank, the left side of the upper part of the sewage tank is fixedly communicated with a water inlet pipe, the front side of the left part of the water inlet pipe is fixedly communicated with a flocculant pipe, and the rear side of the left part of the sewage tank is fixedly communicated with a coagulant aid pipe. A first motor is fixedly installed on the middle side of the upper portion of the sewage tank, a fixing rod is fixedly connected to the output end of the first motor, a threaded rod is fixedly connected to the lower portion of the fixing rod, and a stirring rod is fixedly connected to the lower portion of the threaded rod. According to the sewage treatment device, sewage is input into the flocculation area of the sewage tank through the water inlet pipe, the first motor is started, the first motor drives the threaded rod and the stirring rod to rotate, and after some large substances in the sewage are filtered out through the filter plate, a flocculating agent and a coagulant aid are added into the sewage tank through the flocculating agent pipe and the coagulant aid pipe respectively; the stirring blades are used for stirring and mixing.

Description

Technical Field

[0001] The utility model relates to the technical field of air flotation machines, in particular to a dissolved air flotation machine with a dissolved air releaser. Background Art

[0002] The flotation machine is a water treatment equipment that uses a dissolved air system to generate a large number of fine bubbles in the water, so that the air is attached to the suspended particles in the form of highly dispersed tiny bubbles, resulting in a state where the density is less than that of water. The buoyancy principle is used to make the air float on the water surface, thereby achieving solid-liquid separation.

[0003] However, the existing device has poor water treatment effect and does not have the function of preliminary filtering of larger substances in sewage. When larger substances in sewage enter the flotation tank, it is difficult for the flotation force to float them up for removal due to their weight. In addition, a large amount of scum will be generated when the sewage is cleaned by the flotation machine, which requires manual cleaning, with high labor intensity and low efficiency. Therefore, a dissolved air flotation machine with a dissolved air releaser is provided to solve the problems raised in the above background technology. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a dissolved air flotation machine with a dissolved air releaser, aiming to improve the poor water treatment effect in the prior art, and the lack of the function of preliminary filtering of larger substances in sewage. When the larger substances in the sewage enter the flotation tank, due to the weight of the larger substances, the flotation force is difficult to make them float for removal, and a large amount of scum will be generated when the flotation machine is used to clean the sewage, which requires manual cleaning, with high labor intensity and low efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a dissolved air flotation machine with a dissolved air releaser, comprising a sewage tank, a water inlet pipe is fixedly connected to the upper left side of the sewage tank, a flocculant pipe is fixedly connected to the left front side of the water inlet pipe, a coagulant aid pipe is fixedly connected to the left rear side of the sewage tank, a motor 1 is fixedly installed on the upper middle side of the sewage tank, a fixed rod is fixedly connected to the output end of the motor 1, a threaded rod is fixedly connected to the lower part of the fixed rod, a stirring rod is fixedly connected to the lower part of the threaded rod, a stirring rod is fixedly connected to the outside of the stirring rod, a stirring blade is fixedly connected to the outside of the stirring rod, a threaded block is threadedly connected to the outside of the threaded block, a filter plate is fixedly connected to the outside of the fixed rod, a brush plate is fixedly connected to the outside of the fixed rod, a water pump 1 is fixedly connected to the right part of the sewage tank, a connecting pipe is fixedly connected to the right part of the connecting pipe, and an air flotation component is arranged on the right part of the connecting pipe, and the air flotation component is used to flotate the sewage in the sewage tank.

[0006] Furthermore, the flotation assembly includes an air flotation box, a water tank is installed on the right side of the air flotation box, an air compressor is fixedly installed on the upper right side of the water tank, an air dissolving tank is fixedly installed on the upper left side of the water tank, an ejector is fixedly connected to the lower left side of the air dissolving tank, a releaser is fixedly connected to the middle left side of the air dissolving tank, the releaser is fixedly installed on the air flotation box, the ejector is connected to the releaser, and a water pump 2 is fixedly installed on the left side of the water tank, and the water pump 2 is connected to the ejector.

[0007] Furthermore, two rotating drums are provided on the inner upper side of the flotation box, the inner part of the rotating drum is fixedly connected with a rotating shaft, the rotating shaft is rotatably connected to the inner upper side of the flotation box, the outer part of the rotating drum is transmission-connected with a conveyor belt, the outer part of the conveyor belt is fixedly connected with a scraper, the front part of the flotation box is fixedly installed with motor 2, and the output end of motor 2 is fixedly connected to the front part of the left rotating shaft.

[0008] Furthermore, a controller is fixedly installed at the front of the sewage tank, and the controller is electrically connected to motor 1, motor 2, water pump 1, water pump 2, the ejector and the air compressor.

[0009] Furthermore, the brush plate is rotatably connected to the inside of the brush plate, and the stirring blade is rotatably connected to the inside of the sewage tank.

[0010] Furthermore, the conveyor belt is rotatably connected to the upper part of the flotation tank, and the scraper is rotatably connected to the upper part of the flotation tank.

[0011] Furthermore, a water collector is fixedly installed on the inner bottom of the flotation tank, and the water collector is fixedly connected to the lower left side of the water tank.

[0012] Furthermore, a mounting plate is fixedly mounted on the lower portion of the motor 2, and the mounting plate is fixedly mounted on the front portion of the air flotation tank.

[0013] The utility model has the following beneficial effects:

[0014] In the utility model, sewage is input into the flocculation area of ​​the sewage tank through the water inlet pipe, and the motor one is started. The output end of the motor one drives the threaded rod and the stirring rod to rotate. After the sewage passes through the filter plate to filter out some larger substances, the flocculant and the coagulant aid are respectively added into the sewage tank through the flocculant tube and the coagulant aid tube, and stirred and mixed by the stirring blades. At the same time, the fixed rod can drive the brush plate to rotate to clean the filter plate. By starting the water pump one, the sewage in the sewage tank is transported out through the connecting pipe.

[0015] In the utility model, the air compressor and the dissolved air tank are operated by the controller to generate high-pressure gas, which is mixed with dissolved air and water through the ejector and discharged from the releaser. The flocs in the air flotation box and the small bubbles in the dissolved air water adhere to each other, and the flocs float to the water surface together with the small bubbles to form scum. By starting the second motor, the second motor drives the rotating shaft to rotate, the rotating shaft drives the rotating drum to rotate, thereby driving the conveyor belt to rotate, and the conveyor belt drives the scraper to scrape off the upper scum. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a dissolved air flotation machine with a dissolved air releaser proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of a sewage tank of a dissolved air flotation machine with a dissolved air releaser proposed by the utility model;

[0018] Figure 3 A schematic diagram of the internal structure of a flotation tank of a dissolved air flotation machine with a dissolved air releaser proposed in the utility model;

[0019] Figure 4 The utility model provides an upper part of an air flotation tank of a dissolved air flotation machine with a dissolved air releaser.

[0020] Legend:

[0021] 1. Sewage tank; 2. Motor 1; 3. Stirring rod; 4. Flotation tank; 5. Flocculant tube; 6. Coagulant aid tube; 7. Water inlet pipe; 8. Stirring blade; 9. Water pump 1; 10. Connecting pipe; 11. Air compressor; 12. Dissolved air tank; 13. Releaser; 14. Ejector; 15. Motor 2; 16. Mounting plate; 17. Drum; 18. Conveyor belt; 19. Rotating shaft; 20. Scraper; 21. Water tank; 22. Water collector; 23. Threaded rod; 24. Controller; 25. Water pump 2; 26. Filter plate; 27. Threaded block; 28. Brush plate; 29. ​​Fixing rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1 and Figure 2The utility model provides an embodiment: a dissolved air flotation machine with a dissolved air releaser, including a sewage tank 1, characterized in that: the upper left side of the sewage tank 1 is fixedly connected with a water inlet pipe 7, the left front side of the water inlet pipe 7 is fixedly connected with a flocculant pipe 5, the left rear side of the sewage tank 1 is fixedly connected with a coagulant aid pipe 6, the upper middle side of the sewage tank 1 is fixedly installed with a motor 2, the output end of the motor 2 is fixedly connected with a fixed rod 29, the lower part of the fixed rod 29 is fixedly connected with a threaded rod 23, and the lower part of the threaded rod 23 is fixed A stirring rod 3 is connected, the outside of the stirring rod 3 is fixedly connected to the stirring rod 3, the outside of the stirring rod 3 is fixedly connected to the stirring blade 8, the outside of the threaded rod 23 is threadedly connected to the threaded block 27, the outside of the threaded block 27 is fixedly connected to the filter plate 26, the outside of the fixed rod 29 is fixedly connected to the brush plate 28, the right part of the sewage tank 1 is fixedly connected to the water pump 9, the right part of the water pump 9 is fixedly connected to the connecting pipe 10, the right part of the connecting pipe 10 is provided with an air flotation component, and the air flotation component is used to flotate the sewage in the sewage tank 1;

[0024] First, the sewage is input into the flocculation area of ​​the sewage tank 1 through the water inlet pipe 7, and the motor 2 is started. The output end of the motor 2 drives the threaded rod 23 and the stirring rod 3 to rotate. After the sewage passes through the filter plate 26 to filter out some larger substances, the flocculant and the coagulant aid are added into the sewage tank 1 through the flocculant tube 5 and the coagulant aid tube 6 respectively, and stirred and mixed by the stirring blade 8. At the same time, the fixed rod 29 can drive the brush plate 28 to rotate to clean the filter plate 26. By starting the water pump 9, the sewage in the sewage tank 1 is transported out through the connecting pipe 10.

[0025] Reference Figure 1 and Figure 3 The air flotation assembly includes an air flotation tank 4, a water tank 21 is installed on the right side of the air flotation tank 4, an air compressor 11 is fixedly installed on the upper right side of the water tank 21, an air dissolving tank 12 is fixedly installed on the upper left side of the water tank 21, an ejector 14 is fixedly connected to the lower left side of the air dissolving tank 12, a releaser 13 is fixedly connected to the middle left side of the air dissolving tank 12, the releaser 13 is fixedly installed on the air flotation tank 4, the ejector 14 is connected to the releaser 13, a water pump 25 is fixedly installed on the left side of the water tank 21, and the water pump 25 is connected to the ejector 14;

[0026] The air compressor 11 and the dissolved air tank 12 work through the controller 24 to generate high-pressure gas, which is mixed with dissolved air and water through the ejector 14 and discharged from the releaser 13. The flocs in the flotation tank 4 adhere to the small bubbles in the dissolved air water, and the flocs float to the water surface with the small bubbles to form scum.

[0027] Reference Figure 1 , Figure 3 and Figure 4Two rotating drums 17 are arranged on the upper inner side of the air flotation tank 4, and a rotating shaft 19 is fixedly connected to the inner side of the air flotation tank 4. The outer side of the rotating drum 17 is connected to a conveyor belt 18, and the outer side of the conveyor belt 18 is fixedly connected to a scraper 20. A motor 2 15 is fixedly installed at the front of the air flotation tank 4, and the output end of the motor 2 15 is fixedly connected to the front of the left rotating shaft 19. A controller 24 is fixedly installed at the front of the sewage tank 1, and the controller 24 is connected to the motor 1 2, the motor 2 15, and the water pump One 9, water pump two 25, ejector 14 and air compressor 11 are electrically connected, brush plate 28 is rotatably connected to the inside of brush plate 28, stirring blade 8 is rotatably connected to the inside of sewage tank 1, conveyor belt 18 is rotatably connected to the upper part of flotation tank 4, scraper 20 is rotatably connected to the upper part of flotation tank 4, water collector 22 is fixedly installed on the inner bottom of flotation tank 4, water collector 22 is fixedly connected to the lower left side of water tank 21, and mounting plate 16 is fixedly installed on the lower part of motor two 15, and mounting plate 16 is fixedly installed on the front part of flotation tank 4.

[0028] By starting the motor 2 15, the motor 2 15 drives the shaft 19 to rotate, the shaft 19 drives the drum 17 to rotate, thereby driving the conveyor belt 18 to rotate, and the conveyor belt 18 drives the scraper 20 to scrape out the scum on the top. The controller 24 is electrically connected with the motor 1 2, the motor 2 15, the water pump 1 9, the water pump 25, the ejector 14 and the air compressor 11, and can control the motor 1 2, the motor 2 15, the water pump 1 9, the water pump 25, the ejector 14 and the air compressor 11 to start and stop. By rotating the brush plate 28 inside the brush plate 28, the passing The impurities on the filter plate 24 are cleaned, and the sewage, flocculant and coagulant aid can be stirred and mixed by the stirring blade 8 rotating inside the sewage tank 1. The conveyor belt 18 rotates on the upper part of the flotation tank 4, which can drive the scraper 20 to move. The scraper 20 rotates on the upper part of the flotation tank 4 to scrape off the scum on the upper flotation tank 4. The clean water in the lower layer of the flotation tank 4 flows to the water tank 21 through the water collector 22, and a part of it flows back as dissolved air water, and the remaining clean water flows out through the outlet pipe. The motor 2 15 is supported by the installation plate 16.

[0029] Working principle: When using this device, firstly, input the sewage into the flocculation area of ​​the sewage tank 1 through the water inlet pipe 7, start the motor 2, the motor 2 drives the threaded rod 23 and the stirring rod 3 to rotate, after the sewage passes through the filter plate 26 to filter out some of the larger substances, the flocculant and the coagulant aid are added into the sewage tank 1 through the flocculant pipe 5 and the coagulant aid pipe 6 respectively, and the mixing is carried out through the stirring blade 8, and the sewage in the sewage tank 1 is transported to the inside of the flotation tank 4 through the connecting pipe 10 by starting the water pump 9, and the air compressor 11 and the dissolved gas tank 1 are connected through the controller 24. 2 works, generates high-pressure gas, mixes the dissolved air water through the ejector 14, and is discharged from the releaser 13. The flocs in the flotation box 4 and the small bubbles in the dissolved air water adhere to each other, and the flocs float to the water surface with the small bubbles to form scum. The clean water in the lower layer flows to the water tank 21 through the water collector 22, a part of it flows back as dissolved air water, and the remaining clean water flows out through the water outlet pipe. By starting the motor 2 15, the motor 2 15 drives the shaft 19 to rotate, the shaft 19 drives the drum 17 to rotate, thereby driving the conveyor belt 18 to rotate, and the conveyor belt 18 drives the scraper 20 to scrape out the scum on the upper part.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dissolved air flotation machine with a dissolved air releaser, comprising a sewage tank (1), characterized in that: The upper left side of the sewage tank (1) is fixedly connected to a water inlet pipe (7), the left front side of the water inlet pipe (7) is fixedly connected to a flocculant pipe (5), the left rear side of the sewage tank (1) is fixedly connected to a coagulant aid pipe (6), a motor 1 (2) is fixedly installed on the upper middle side of the sewage tank (1), the output end of the motor 1 (2) is fixedly connected to a fixed rod (29), the lower part of the fixed rod (29) is fixedly connected to a threaded rod (23), the lower part of the threaded rod (23) is fixedly connected to a stirring rod (3), and the outside of the stirring rod (3) is fixedly connected to a stirring rod (6). The invention relates to a rod (3), wherein the stirring rod (3) is fixedly connected to a stirring blade (8) on the outside, the threaded rod (23) is threadedly connected to a threaded block (27) on the outside, the threaded block (27) is fixedly connected to a filter plate (26) on the outside, and the fixed rod (29) is fixedly connected to a brush plate (28) on the outside. The right part of the sewage tank (1) is fixedly connected to a water pump 1 (9), the right part of the water pump 1 (9) is fixedly connected to a connecting pipe (10), and the right part of the connecting pipe (10) is provided with an air flotation component, and the air flotation component is used to perform air flotation treatment on the sewage in the sewage tank (1).

2. A dissolved air flotation machine with a dissolved air releaser according to claim 1, characterized in that: The air flotation assembly comprises an air flotation tank (4), a water tank (21) is installed on the right side of the air flotation tank (4), an air compressor (11) is fixedly installed on the upper right side of the water tank (21), an air dissolving tank (12) is fixedly installed on the upper left side of the water tank (21), an ejector (14) is fixedly connected to the lower left side of the air dissolving tank (12), a releaser (13) is fixedly connected to the middle left side of the air dissolving tank (12), the releaser (13) is fixedly installed on the air flotation tank (4), the ejector (14) is connected to the releaser (13), and a water pump 2 (25) is fixedly installed on the left side of the water tank (21), and the water pump 2 (25) is connected to the ejector (14).

3. A dissolved air flotation machine with a dissolved air releaser according to claim 2, characterized in that: Two rotating drums (17) are arranged on the upper inner side of the flotation box (4); a rotating shaft (19) is fixedly connected to the inner side of the rotating drum (17); the rotating shaft (19) is rotatably connected to the upper inner side of the flotation box (4); a conveyor belt (18) is transmission-connected to the outer side of the rotating drum (17); a scraper (20) is fixedly connected to the outer side of the conveyor belt (18); a second motor (15) is fixedly installed on the front of the flotation box (4); an output end of the second motor (15) is fixedly connected to the front of the left rotating shaft (19).

4. A dissolved air flotation machine with a dissolved air releaser according to claim 2, characterized in that: A controller (24) is fixedly mounted on the front of the sewage tank (1); the controller (24) is electrically connected to motor 1 (2), motor 2 (15), water pump 1 (9), water pump 2 (25), the ejector (14) and the air compressor (11).

5. The dissolved air flotation machine with a dissolved air releaser according to claim 1, characterized in that: The brush plate (28) is rotatably connected to the inside of the brush plate (28), and the stirring blade (8) is rotatably connected to the inside of the sewage tank (1).

6. A dissolved air flotation machine with a dissolved air releaser according to claim 3, characterized in that: The conveyor belt (18) is rotatably connected to the upper part of the flotation box (4), and the scraper (20) is rotatably connected to the upper part of the flotation box (4).

7. The dissolved air flotation machine with a dissolved air releaser according to claim 2, characterized in that: A water collector (22) is fixedly mounted on the inner bottom of the air flotation tank (4), and the water collector (22) is fixedly connected to the lower left side of the water tank (21).

8. The dissolved air flotation machine with a dissolved air releaser according to claim 3, characterized in that: A mounting plate (16) is fixedly mounted on the lower portion of the second motor (15), and the mounting plate (16) is fixedly mounted on the front portion of the air flotation tank (4).

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