Air flotation device for coagulation reaction precipitation

Abstract

The utility model relates to the technical field of dissolved air flotation, and discloses an air flotation device for coagulation reaction precipitation, which comprises a device shell, the bottom of the left end of the front end of the device shell is fixedly connected with a water outlet pipe and penetrates through the water outlet pipe, the top of the left side of the front end of the device shell is fixedly connected with a sludge discharge pipe, and the right side of the front end of the device shell is fixedly connected with a controller. An electric control valve is installed on the outer wall of the water outlet pipe, the bottom end of the inner wall of the device shell is connected with a dissolved air water pump through a precipitation assembly, a coagulation reaction tank is formed in the right end of the inner wall of the device shell, a contact reaction tank is formed in the middle of the inner wall of the device shell, and a solid-liquid separation tank is formed in the left end of the inner wall of the device shell. According to the device disclosed by the utility model, the device can conveniently scrape floating foam, the scraping working effect is improved, and suspended matters, organic matters, bacteria and viruses in water can be more thoroughly removed by effectively scraping the floating foam.

Description

Technical Field

[0001] The utility model relates to the technical field of dissolved air flotation, in particular to a flotation device for coagulation reaction precipitation. Background Art

[0002] The flotation device for coagulation reaction precipitation is a water treatment equipment integrating three technologies of coagulation reaction, precipitation and flotation, which is widely used in water purification. It aggregates fine particles by adding coagulants, settles flocs in the sedimentation area, and uses microbubbles in the flotation area to float the unsettled substances, removing suspended solids, organic matters, bacteria and viruses in water. The equipment is efficient, adaptable and occupies a small area, and is suitable for drinking water, industrial wastewater and municipal sewage treatment to ensure the safety and environmental protection of water quality.

[0003] When the current device is in use, when sudden pressure reduction and release occur in the release pipe in the contact reaction area and it fully contacts with the coagulated sewage, adsorbing the coagulated contaminants in the sewage and rising them to the liquid surface, when scraping the foam floating on the liquid surface, the scraping operation is not continuous, which easily affects the treatment efficiency of the device and causes inconvenience for the device to purify the water source. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages existing in the prior art, and propose a flotation device for coagulation reaction precipitation, which makes it convenient for the device to carry out the foam scraping work, improves the scraping effect, and can more thoroughly remove suspended solids, organic matters, bacteria and viruses in water by effectively scraping the foam.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A flotation device for coagulation reaction precipitation, including a device housing. The bottom of the left end of the front end of the device housing is fixedly connected with and penetrates through a water outlet pipe. The top of the left side of the front end of the device housing is fixedly connected with a sludge discharge pipe. The right side of the front end of the device housing is fixedly connected with a controller. An electric control valve is installed on the outer wall of the water outlet pipe. The bottom end of the inner wall of the device housing is connected with a dissolved air water pump through a precipitation assembly. A coagulation reaction tank is opened at the right end of the inner wall of the device housing. A contact reaction tank is opened in the middle of the inner wall of the device housing. A solid-liquid separation tank is opened at the left end of the inner wall of the device housing. Both front ends of the inner wall of the device housing are connected with fixed grooves through scraping assemblies.

[0007] Furthermore, the scraping assembly includes a driving motor fixedly connected to the rear end of the inner wall of the device housing. A reciprocating lead screw is fixedly connected to the driving end of the driving motor. A slider is sleeved on the outer wall of the reciprocating lead screw. A transfer ring is fixedly connected to the outer wall of the slider. A scraping plate is rotatably connected to the outer wall of the transfer ring. A transmission gear is fixedly connected to the front end of the scraping plate. A toothed groove bar is meshed and connected to the outer wall of the transmission gear.

[0008] Further, the precipitation component includes a dissolved air tank fixedly connected to the driving end of the dissolved air water pump. The left end of the outer wall of the dissolved air tank is fixedly connected with and penetrates through a dissolved air water release pipe. The bottom end of the inner wall of the device housing is fixedly connected with a flow dividing plate.

[0009] Further, the outer wall of the adapter ring is slidably connected to the rear end of the inner wall of the rear fixing groove.

[0010] Further, the right end of the reciprocating lead screw is rotatably connected to the right end of the inner wall of the rear fixing groove.

[0011] Further, the bottom end of the tooth groove bar is fixedly connected to the bottom end of the inner wall of the front fixing groove.

[0012] Further, the bottom end of the dissolved air tank is fixedly connected to the bottom end of the inner wall of the device housing.

[0013] Further, the outer wall of the left end of the dissolved air water release pipe is fixedly connected to and penetrates through the left and right ends of the flow dividing plate.

[0014] The utility model has the following beneficial effects:

[0015] In the utility model, through the combined use of the driving motor, the reciprocating lead screw, the slider, the adapter ring, the foam scraping plate, the transmission gear and the tooth groove bar, the device is convenient for scraping the floating foam, improving the scraping effect. By effectively scraping the floating foam, the suspended substances, organic matters, bacteria and viruses in the water can be removed more thoroughly, improving the overall effect of water quality purification. And the efficient scraping of the floating foam reduces the residence time of the floating scum on the water surface, speeds up the whole treatment process, improves the treatment capacity and operation speed of the equipment, reduces the risk of blockage at the same time, prolongs the service life of the equipment, and reduces the frequency of cleaning and maintenance. Description of the Drawings

[0016] Figure 1 is a perspective view of a dissolved air flotation device for coagulation reaction precipitation proposed by the utility model;

[0017] Figure 2 is a half-sectional view of the device housing of a dissolved air flotation device for coagulation reaction precipitation proposed by the utility model;

[0018] Figure 3 is a schematic structural diagram of a dissolved air water pump of a dissolved air flotation device for coagulation reaction precipitation proposed by the utility model;

[0019] Figure 4 is a half-sectional view of a fixing groove of a dissolved air flotation device for coagulation reaction precipitation proposed by the utility model;

[0020] Figure 5 is a half-sectional view of a foam scraping plate of a dissolved air flotation device for coagulation reaction precipitation proposed by the utility model.

[0021] Legend:

[0022] 1. Device housing; 2. Outlet pipe; 3. Sludge discharge pipe; 4. Controller; 5. Electric control valve; 6. Coagulation reaction tank; 7. Contact reaction tank; 8. Solid-liquid separation tank; 9. Dissolved air water pump; 10. Fixed tank; 11. Diverter plate; 12. Dissolved air tank; 13. Dissolved air water release pipe; 14. Driving motor; 15. Reciprocating lead screw; 16. Slide block; 17. Adapter ring; 18. Foam scraping plate; 19. Transmission gear; 20. Tooth groove bar. Specific implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0024] Refer to Figures 1-5 , an embodiment provided by the present invention: A coagulation reaction precipitation and air flotation device, including a device housing 1, the bottom of the left end of the front end of the device housing 1 is fixedly connected with an outlet pipe 2 and penetrates through, the top of the left side of the front end of the device housing 1 is fixedly connected with a sludge discharge pipe 3, the right side of the front end of the device housing 1 is fixedly connected with a controller 4, an electric control valve 5 is installed on the outer wall of the outlet pipe 2, the bottom end of the inner wall of the device housing 1 is connected with a dissolved air water pump 9 through a precipitation component, a coagulation reaction tank 6 is provided on the right end of the inner wall of the device housing 1, a contact reaction tank 7 is provided in the middle of the inner wall of the device housing 1, a solid-liquid separation tank 8 is provided on the left end of the inner wall of the device housing 1, and fixed tanks 10 are connected to both ends of the front of the inner wall of the device housing 1 through a foam scraping component. Clean water is put into the coagulation reaction tank 6, so that the water in the coagulation reaction tank 6 flows into the contact reaction tank 7, and the sludge discharge pipe 3 can conveniently discharge the floating foam, and the outlet pipe 2 can discharge sewage under the action of the electric control valve 5.

[0025] Specifically, a driving motor 14 is fixedly connected to the rear end of the inner wall of the device housing 1. The driving end of the driving motor 14 is fixedly connected to a reciprocating lead screw 15. A slider 16 is sleeved on the outer wall of the reciprocating lead screw 15. A transfer ring 17 is fixedly connected to the outer wall of the slider 16. A foam scraping plate 18 is rotatably connected to the outer wall of the transfer ring 17. A transmission gear 19 is fixedly connected to the front end of the foam scraping plate 18. A toothed groove bar 20 is meshed with the outer wall of the transmission gear 19. The outer wall of the transfer ring 17 is slidably connected to the rear end of the inner wall of the rear fixed groove 10. The right end of the reciprocating lead screw 15 is rotatably connected to the right end of the inner wall of the rear fixed groove 10. The bottom end of the toothed groove bar 20 is fixedly connected to the bottom end of the inner wall of the front fixed groove 10. Start the driving motor 14 to rotate the reciprocating lead screw 15, so that the reciprocating lead screw 15 drives the slider 16 to make the transfer ring 17 reciprocate along the fixed groove 10, so that the transfer ring 17 drives the foam scraping plate 18 to move, and makes the transmission gear 19 at the foam scraping plate 18 rotate along the tooth grooves of the toothed groove bar 20, so that the foam scraping plate 18 can scrape out the rising floating foam, so that the foam scraping plate 18 cleans the floating foam, making it convenient for the device to carry out the work of scraping out the floating foam, improving the effect of the scraping work. By effectively scraping out the floating foam, the suspended solids, organic matters, bacteria and viruses in the water can be removed more thoroughly, improving the overall effect of water quality purification. And efficiently scraping the floating foam reduces the residence time of the floating scum on the water surface, speeds up the whole treatment process, improves the treatment capacity and operation speed of the equipment, reduces the risk of blockage at the same time, extends the service life of the equipment, and reduces the frequency of cleaning and maintenance.

[0026] Specifically, a dissolved air pump 9 is fixedly connected to the driving end of the dissolved air pump 9. A dissolved air tank 12 is fixedly connected to the left end of the outer wall of the dissolved air tank 12 and penetrates through. A flow dividing plate 11 is fixedly connected to the bottom end of the inner wall of the device housing 1. The bottom end of the dissolved air tank 12 is fixedly connected to the bottom end of the inner wall of the device housing 1. The outer wall of the left end of the dissolved air water release pipe 13 is fixedly connected to the left and right ends of the flow dividing plate 11 and penetrates through. Put clean water into the coagulation reaction tank 6, so that the water in the coagulation reaction tank 6 flows into the contact reaction tank 7. The sludge discharge pipe 3 can conveniently discharge the floating foam, and the water outlet pipe 2 can discharge the sewage under the action of the electric control valve 5. When the dissolved air pump 9 is started, the dissolved air water with small bubbles is generated in the dissolved air tank 12, and the dissolved air water release pipe 13 at the contact reaction tank 7 is suddenly decompressed and released, so as to fully contact with the coagulated sewage, adsorb the coagulated pollutants in the sewage and rise to the liquid surface, making the sludge floating foam rise.

[0027] Working principle: First, put clean water into the coagulation reaction tank 6, and make the water in the coagulation reaction tank 6 flow into the contact reaction tank 7. The sludge discharge pipe 3 can conveniently discharge the floating foam, and the water outlet pipe 2 can discharge the sewage under the action of the electric control valve 5. When the dissolved air water pump 9 is started, dissolved air water with small bubbles is generated in the dissolved air tank 12, and the dissolved air water release pipe 13 at the contact reaction tank 7 suddenly decompresses and releases, fully contacting with the coagulated sewage, adsorbing the coagulated pollutants in the sewage and rising to the liquid surface, making the sludge floating foam rise. Then start the driving motor 14 to rotate the reciprocating lead screw 15, and the reciprocating lead screw 15 drives the slider 16 to make the adapter ring 17 reciprocate along the fixed groove 10, so that the adapter ring 17 drives the foam scraping plate 18 to move, and the transmission gear 19 at the foam scraping plate 18 rotates along the tooth groove of the tooth groove bar 20, so that the foam scraping plate 18 can scrape the rising floating foam, clean the floating foam by the foam scraping plate 18, facilitate the floating foam scraping work of the device, improve the scraping work effect. By effectively scraping the floating foam, the suspended substances, organic matters, bacteria and viruses in the water can be removed more thoroughly, improving the overall effect of water quality purification. And efficiently scraping the floating foam reduces the residence time of the floating scum on the water surface, speeds up the whole treatment process, improves the treatment capacity and operation speed of the equipment, reduces the risk of blockage at the same time, extends the service life of the equipment, and reduces the frequency of cleaning and maintenance.

[0028] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air flotation device for coagulation reaction precipitation, comprising a device housing (1), characterized in that: At the bottom left end of the front end of the device housing (1), a water outlet pipe (2) is fixedly connected and penetrates through. At the top left side of the front end of the device housing (1), a sludge discharge pipe (3) is fixedly connected. At the right side of the front end of the device housing (1), a controller (4) is fixedly connected. An electric control valve (5) is installed on the outer wall of the water outlet pipe (2). At the bottom end of the inner wall of the device housing (1), a dissolved air water pump (9) is connected through a precipitation assembly. A coagulation reaction tank (6) is provided at the right end of the inner wall of the device housing (1). A contact reaction tank (7) is provided in the middle of the inner wall of the device housing (1). A solid-liquid separation tank (8) is provided at the left end of the inner wall of the device housing (1). At both front ends of the inner wall of the device housing (1), a fixed groove (10) is connected through a foam scraping assembly.

2. The air flotation device for coagulation reaction precipitation according to claim 1, characterized in that: The foam scraping assembly includes a driving motor (14) fixedly connected to the rear end of the inner wall of the device housing (1). A reciprocating lead screw (15) is fixedly connected to the driving end of the driving motor (14). A slider (16) is sleeved on the outer wall of the reciprocating lead screw (15). A transfer ring (17) is fixedly connected to the outer wall of the slider (16). A foam scraping plate (18) is rotatably connected to the outer wall of the transfer ring (17). A transmission gear (19) is fixedly connected to the front end of the foam scraping plate (18). A toothed groove bar (20) is meshed and connected to the outer wall of the transmission gear (19).

3. The air flotation device for coagulation reaction precipitation according to claim 1, characterized in that: The precipitation assembly includes a dissolved air tank (12) fixedly connected to the driving end of the dissolved air water pump (9). A dissolved air water release pipe (13) is fixedly connected to the left end of the outer wall of the dissolved air tank (12) and penetrates through. A flow dividing plate (11) is fixedly connected to the bottom end of the inner wall of the device housing (1).

4. The air flotation device for coagulation reaction precipitation according to claim 2, characterized in that: The outer wall of the transfer ring (17) is slidably connected to the inner wall of the rear fixed groove (10) at the rear end.

5. The air flotation device for coagulation reaction precipitation according to claim 2, characterized in that: The right end of the reciprocating lead screw (15) is rotatably connected to the inner wall of the rear fixed groove (10) at the right end.

6. The air flotation device for coagulation reaction precipitation according to claim 2, characterized in that: The bottom end of the toothed groove bar (20) is fixedly connected to the inner wall of the front fixed groove (10) at the bottom end.

7. The air flotation device for coagulation reaction precipitation according to claim 3, characterized in that: The bottom end of the dissolved air tank (12) is fixedly connected to the bottom end of the inner wall of the device housing (1).

8. The air flotation device for coagulation reaction precipitation according to claim 3, characterized in that: The outer wall of the left end of the dissolved air water release pipe (13) is fixedly connected to the left and right ends of the flow dividing plate (11) and penetrates through.

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