Air floatation equipment for sewage treatment

Abstract

The utility model discloses air floatation equipment for sewage treatment, which comprises a treatment bin, two groups of partition plates are arranged in the treatment bin, a mixing area, an aeration area and an air floatation area are arranged in the treatment bin, a sedimentation bin is arranged at the bottom of the treatment bin, a blow-off pipe is arranged on the side wall of the sedimentation bin, a water inlet pipe is arranged at the top of the treatment bin, and a water outlet pipe is arranged on the bottom of the treatment bin. A water inlet pipe is arranged on one side of the treatment bin and located in the material mixing area, a water drainage pipe is arranged on the other side of the treatment bin and communicated with the air flotation area, a stirring structure is arranged in the material mixing area, an aeration pipe is arranged in the aeration area, an air compressor is arranged on the outer wall of the treatment bin and communicated with the aeration pipe, and a scum cleaning structure is arranged in the air flotation area. The utility model relates to the technical field of sewage treatment, and particularly provides air floatation equipment for sewage treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an air flotation device for sewage treatment. Background Art

[0002] Fur refers to various clothing and accessories made from animal skins. There are many types of fur products, including coats, jackets, scarves, hats, gloves, etc. The fur industry uses animal skins through a series of processes such as tanning, dyeing, and processing to make them soft, durable and beautiful.

[0003] When fur is processed, a large amount of industrial wastewater is generated. The wastewater is mixed with a large amount of fur impurities and oil and fat chemicals. Generally, flotation equipment is used to introduce a large number of fine bubbles into the water, so that the air is attached to the suspended particles in the form of highly dispersed tiny bubbles, and the buoyancy is used to make them float on the water surface, thereby achieving solid-liquid separation. However, when the existing sewage treatment flotation equipment is used, the added flocculant cannot be fully mixed with the sewage for flocculation. In addition, the floating dirt is handled by a scraping mechanism. The overall structure of the scraping mechanism is complex and the cleaning efficiency is average. Utility Model Content

[0004] The technical problems to be solved by the utility model are that the scraping mechanism has a complex structure and a general scraping efficiency, and the flocculant cannot be fully mixed with the sewage for flocculation.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: The present invention proposes a flotation device for sewage treatment, comprising a treatment bin, wherein two sets of partition plates are provided in the treatment bin, wherein a mixing area, an aeration area and a flotation area are provided in the treatment bin, a sedimentation bin is provided at the bottom of the treatment bin, a sewage pipe is provided on the side wall of the sedimentation bin, a water inlet pipe is provided at the top of the treatment bin, the water inlet pipe is located in the mixing area, a drainage pipe is provided on the other side of the treatment bin, the drainage pipe is connected to the flotation area, a stirring structure is provided in the mixing area, an aeration pipe is provided in the aeration area, an air compressor is provided on the outer wall of the treatment bin, the air compressor is connected to the aeration pipe, and a slag cleaning structure is provided in the flotation area.

[0006] Preferred technical solution one: The scum cleaning structure includes a support frame, an electric telescopic rod, a lifting plate and a water tank, the support frame is arranged on the side wall of the processing bin, a guide groove is provided on one side of the support frame, one end of the lifting plate is slidably arranged in the guide groove of the side wall of the support frame, the electric telescopic rod is arranged on the top of the support frame and the free end is connected to the lifting plate, the water tank is arranged in the flotation area and installed on the inner wall of the processing bin, a circulating water pump is provided on the bottom wall of the water tank, the water outlet end of the circulating water pump passes through the water tank and extends into the flotation area, a lifting support frame is slidably provided on the inner wall of the water tank, a slag removal net bag is installed in the lifting support frame, and a connecting rod is connected between the lifting plate and the lifting support frame.

[0007] Preferred technical solution two: The stirring structure includes a stirring motor, a stirring shaft and a spiral stirring blade. The stirring shaft is rotatably arranged between the bottom wall and the top wall of the mixing area. The stirring motor is arranged at the top of the treatment bin and the power output shaft is connected to the stirring shaft. The spiral stirring blade is arranged on the stirring shaft, so that flocculants and other chemicals are fully mixed with sewage and circulate up and down between different water levels.

[0008] Preferred technical solution three: a flocculant addition port is further provided on the top of the treatment bin.

[0009] Preferred technical solution four: an auxiliary stirring rod is further provided on the stirring shaft.

[0010] Preferred technical solution five: The front wall of the processing chamber is also provided with a control display screen, and the electric telescopic rod, stirring motor and air compressor are all electrically connected to the control display screen.

[0011] The utility model proposes an air flotation device for sewage treatment, which has the following beneficial effects by adopting the above structure:

[0012] (1) The stirring motor, stirring shaft and spiral stirring blades can fully mix and stir the sewage and additives such as flocculants in the mixing area, and the mixing is efficient;

[0013] (2) A large number of fine bubbles are introduced or generated into the water in the aeration zone through the cooperation of the air compressor and aeration pipe, so that the air is attached to the suspended particles in the form of highly dispersed tiny bubbles, and the buoyancy principle is used to make them float on the water surface, thereby achieving solid-liquid separation;

[0014] (3) A scum cleaning structure is provided, wherein the upper opening of the water tank is lower than the water surface, and the lifting support frame slides in the water tank. When the lifting support frame is lower than the water surface, sewage is poured into the water tank, and the dirt on the water surface is intercepted and collected by the scum removal net bag. The water inside the water tank is discharged into the flotation area through the circulating water pump. When the lifting support frame is higher than the water surface, the water cannot enter the water tank, thereby driving the impurities on the water surface into the scum removal net bag, thereby achieving efficient cleaning of the scum on the water surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of an air flotation device for sewage treatment proposed in this utility model. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the overall structure of an air flotation device for sewage treatment proposed in this utility model. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the internal structure of an air flotation device for sewage treatment proposed by the present invention;

[0019] Figure 4 for Figure 3 A partial enlarged schematic diagram of part A.

[0020] Among them, 1. Processing bin, 2. Partition plate, 3. Mixing area, 4. Aeration area, 5. Flotation area, 6. Sedimentation bin, 7. Water inlet pipe, 8. Drain pipe, 9. Aeration pipe, 10. Air compressor, 11. Support frame, 12. Electric telescopic rod, 13. Lifting plate, 14. Water tank, 15. Guide groove, 16. Circulating water pump, 17. Lifting support frame, 18. Deslagging net bag, 19. Connecting rod, 20. Stirring motor, 21. Stirring shaft, 22. Spiral stirring blade, 23. Flocculant addition port, 24. Auxiliary stirring rod, 25. Control display screen. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the accompanying drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0023] Example 1

[0024] like Figures 1-2As shown, the technical solution adopted by the present invention is as follows: a flotation device for sewage treatment, including a treatment chamber 1, the treatment chamber 1 is provided with two sets of partition plates 2, a mixing area 3, an aeration area 4 and a flotation area 5 are provided in the treatment chamber 1, a sedimentation chamber 6 is provided at the bottom of the treatment chamber 1, a sewage pipe is provided on the side wall of the sedimentation chamber 6, a water inlet pipe 7 is provided at the top of the treatment chamber 1, the water inlet pipe 7 is located in the mixing area 3, a drain pipe 8 is provided on the other side of the treatment chamber 1, the drain pipe 8 is connected to the flotation area 5, a stirring structure is provided in the mixing area 3, an aeration pipe 9 is provided in the aeration area 4, an air compressor 10 is provided on the outer wall of the treatment chamber 1, the air compressor 10 is connected to the aeration pipe 9, a scum cleaning structure is provided in the flotation area 5, and a flocculant addition port 23 is also provided on the top of the treatment chamber 1;

[0025] The stirring structure includes a stirring motor 20, a stirring shaft 21 and a spiral stirring blade 22. The stirring shaft 21 is rotatably arranged between the bottom wall and the top wall of the mixing area 3. The stirring motor 20 is arranged at the top of the treatment bin 1 and the power output shaft is connected to the stirring shaft 21. The spiral stirring blade 22 is arranged on the stirring shaft 21 to fully mix the flocculant and other chemicals with the sewage, and circulate up and down between different water levels. An auxiliary stirring rod 24 is also provided on the stirring shaft 21.

[0026] Example 2

[0027] Based on the first embodiment, Figure 3 and Figure 4 As shown, the scum cleaning structure includes a support frame 11, an electric telescopic rod 12, a lifting plate 13 and a water tank 14. The support frame 11 is arranged on the side wall of the processing bin 1. A guide groove 15 is provided on one side of the support frame 11. One end of the lifting plate 13 is slidably arranged in the guide groove 15 of the side wall of the support frame 11. The electric telescopic rod 12 is arranged on the top of the support frame 11 and the free end is connected to the lifting plate 13. The water tank 14 is arranged in the flotation area 5 and is installed on the inner wall of the processing bin 1. A circulating water pump 16 is provided on the bottom wall of the water tank 14. The water outlet end of the circulating water pump 16 passes through the water tank 14 and extends into the flotation area 5. A lifting support frame 17 is slidably provided on the inner wall of the water tank 14. A slag removal net bag 18 is installed in the lifting support frame 17. A connecting rod 19 is connected between the lifting plate 13 and the lifting support frame 17.

[0028] A control display screen 25 is further provided on the front wall of the processing chamber 1 , and the electric telescopic rod 12 , the stirring motor 20 and the air compressor 10 are all electrically connected to the control display screen 25 .

[0029] When in use, sewage enters the mixing area 3 through the water inlet pipe 7, and flocculant is added through the flocculant addition port 23. The stirring motor 20 drives the stirring shaft 21 to rotate, and then drives the spiral stirring blade 22 to rotate so that the flocculant and other agents are fully mixed with the sewage in the mixing area 3, and circulate up and down between different water levels. After the sewage enters the aeration area 4, it is introduced into the water through the aeration pipe 9 or a large number of fine bubbles are generated, so that the air is attached to the suspended particles in the form of highly dispersed tiny bubbles, and the buoyancy principle is used to make them float on the water surface, thereby realizing solid-liquid separation, and the sediment enters the sedimentation tank 6, and the sewage enters In the flotation area 5, the electric telescopic rod 12 is started to drive the lifting plate 13 to move up and down, and then the lifting support frame 17 is driven to slide up and down in the water tank 14 through the connecting rod 19. The upper end opening of the water tank 14 is lower than the water surface, and the lifting support frame 17 slides in the water tank 14. When the lifting support frame 17 is lower than the water surface, sewage is poured into the water tank 14 and collected by the slag removal net bag 18. The water inside the water tank 14 is discharged into the flotation area 5 through the circulating water pump 16. When the lifting support frame 17 is higher than the water surface, water cannot enter the water tank, thereby driving impurities on the water surface into the slag removal net bag 18, thereby achieving efficient cleaning of slag on the water surface.

[0030] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, material, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, material, or apparatus.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flotation device for sewage treatment, comprising a treatment chamber, wherein the treatment chamber is provided with two sets of partition plates, wherein the treatment chamber is provided with a mixing area, an aeration area, and a flotation area, and wherein: A sedimentation bin is provided at the bottom of the processing bin, a sewage pipe is provided on the side wall of the sedimentation bin, a water inlet pipe is provided on the top of the processing bin, the water inlet pipe is located in the mixing area, a drainage pipe is provided on the other side of the processing bin, the drainage pipe is connected to the flotation area, a stirring structure is provided in the mixing area, an aeration pipe is provided in the aeration area, an air compressor is provided on the outer wall of the processing bin, the air compressor is connected to the aeration pipe, and a scum cleaning structure is provided in the flotation area; The scum cleaning structure includes a support frame, an electric telescopic rod, a lifting plate and a water tank. The support frame is arranged on the side wall of the processing bin, and a guide groove is provided on one side of the support frame. One end of the lifting plate is slidably arranged in the guide groove of the side wall of the support frame. The electric telescopic rod is arranged on the top of the support frame and the free end is connected to the lifting plate. The water tank is arranged in the flotation area and installed on the inner wall of the processing bin. A circulating water pump is provided on the bottom wall of the water tank. The water outlet end of the circulating water pump passes through the water tank and extends into the flotation area. A lifting support frame is slidably provided on the inner wall of the water tank. A slag removal net bag is installed in the lifting support frame. A connecting rod is connected between the lifting plate and the lifting support frame.

2. The flotation device for sewage treatment according to claim 1, characterized in that: The stirring structure includes a stirring motor, a stirring shaft and a spiral stirring blade. The stirring shaft is rotatably arranged between the bottom wall and the top wall of the mixing area. The stirring motor is arranged at the top of the processing bin and the power output shaft is connected to the stirring shaft. The spiral stirring blade is arranged on the stirring shaft.

3. The flotation device for sewage treatment according to claim 2, characterized in that: A flocculant adding port is also provided on the top of the processing bin.

4. The flotation device for sewage treatment according to claim 3, characterized in that: An auxiliary stirring rod is also provided on the stirring shaft.

5. The flotation device for sewage treatment according to claim 4, characterized in that: The front wall of the processing chamber is also provided with a control display screen, and the electric telescopic rod, the stirring motor and the air compressor are all electrically connected to the control display screen.

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