Integrated double-effect integrated air flotation equipment

Abstract

The utility model relates to the technical field of sewage treatment, and discloses integrated double-effect integrated air floatation equipment which comprises an equipment tank body, a water inlet pipe is fixedly mounted at the lower end of one side of the equipment tank body, a primary reaction tank system is mounted at the rear end, close to the water inlet pipe, of the equipment tank body, and a secondary reaction tank system is mounted at the rear end of the equipment tank body. According to the utility model, the first-stage air flotation separation tank and the second-stage air flotation separation tank are arranged, so that two air floaters can be subjected to two-stage treatment without mutual influence, the occupied area is greatly reduced, the installation and the maintenance are simpler and faster, and the condition that the dissolved air water pump is blocked due to low suspended matter removal rate when floc is complex in water quality is avoided; meanwhile, by arranging a first-stage water collecting system, a second-stage water collecting system and a water outlet valve plate adjusting system, raw water obtained after treatment flotation in first-stage air flotation can be introduced into second-stage air flotation, the integration degree of the two air flotation devices is higher, meanwhile, a complex dosing process is completed, and meanwhile the height of the liquid level in the pool is controlled through a water outlet system.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to an integrated dual-effect air flotation device. Background Technology

[0002] The integrated dual-effect flotation equipment is a water treatment device that uses the adsorption effect of microbubbles to achieve solid-liquid or liquid-liquid separation. By injecting micron-sized bubbles into the water, the bubbles combine with suspended solids to form flocs with a density less than that of water. The flocs float to the water surface to form scum, thus achieving efficient solid-liquid or liquid-liquid separation.

[0003] Meanwhile, the integrated dual-effect air flotation equipment has advantages such as high treatment efficiency, strong adaptability, and small footprint, playing an important role in industrial wastewater treatment, municipal sewage treatment, and drinking water treatment, and is widely used in these fields.

[0004] However, existing integrated dual-effect flotation equipment has limitations in its use. Conventional flotation devices use single-stage air flotation microbubbles to float flocs in water, which can lead to low suspended solids removal rates when the water quality is complex. Impurities in the water can cause blockages in the dissolved air pump. When the water quality is complex and requires a certain reaction time and complex treatment processes, two air flotation units are usually connected in series, resulting in a large footprint, more complicated installation and maintenance, and a larger number of on-site personnel. Utility Model Content

[0005] Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an integrated dual-effect air flotation device, which solves the technical problems mentioned in the background.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an integrated dual-effect air flotation device, comprising a tank body, an inlet pipe fixedly installed at the lower end of one side of the tank body, a primary reaction tank system installed at the rear end of the tank body near the inlet pipe, a primary dissolved air contact module installed at the rear end of the tank body near the primary reaction tank system, a primary air flotation separation tank installed at the rear end of the tank body near the primary dissolved air contact module, a secondary reaction tank system installed at one end of the tank body near the primary reaction tank system, a primary water collection system provided at the inner center of the primary air flotation separation tank, a primary water intake system provided at the inner center of the secondary reaction tank system, a secondary dissolved air contact module installed at the rear end of the tank body near the secondary reaction tank system, a secondary air flotation separation tank installed at the rear end of the tank body near the secondary dissolved air contact module, and a secondary water collection system provided at one side of the interior of the secondary air flotation separation tank;

[0009] Preferably, a connecting pipe is installed between the primary water collection system and the primary water diversion system, and a slag discharge trough is provided on the inner side of the primary air flotation separator near one end.

[0010] Preferably, a slag discharge port is installed on the inner side of the equipment tank near the end of the slag discharge trough, and the slag discharge trough is connected to a pipe for external discharge through the slag discharge port. A clear water tank is provided on the inner side of the equipment tank near the slag discharge trough.

[0011] Preferably, a water storage tank is provided on the inner side of the equipment pool near the clear water tank, and a water outlet is fixedly installed on the other side of the equipment pool near the lower end of the water storage tank. The water storage tank is connected to a pipe for external discharge through the water outlet.

[0012] Preferably, a dissolved air system is fixedly installed on the side of the equipment tank near the water inlet pipe, and several vents are evenly spaced on the inner side of the equipment tank near the bottom.

[0013] Preferably, a sludge scraping system is rotatably installed in the equipment tank near the primary air flotation separator and the secondary air flotation separator, and an outlet valve plate adjustment system is provided at the lower end of the equipment tank near the clear water tank and the storage tank.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides an integrated dual-effect air flotation device, which has the following beneficial effects:

[0016] 1. By setting up a primary air flotation separation tank and a secondary air flotation separation tank, the two air flotation units can achieve dual-stage treatment without affecting each other, greatly reducing the footprint, making installation and maintenance easier and faster, and avoiding the blockage of dissolved air pumps caused by low suspended solids removal rate when the water quality has complex flocs, thus further improving the suspended solids removal efficiency.

[0017] 2. By setting up a primary water collection system, a secondary water collection system, and an outlet valve plate adjustment system, the raw water treated and floated in the primary air flotation stage can be introduced into the secondary air flotation stage. This allows for a higher degree of integration between the two air flotation systems, enabling the completion of complex chemical dosing processes. At the same time, the outlet system controls the liquid level in the tank to regulate the viscosity of the sludge, and the clear water tank system provides water storage capacity. The addition of a level gauge in the tank allows for real-time monitoring of the clear water in the tank, ensuring that the return pump does not run dry and greatly increasing the service life of the equipment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front view schematic diagram of the overall structure of the tank body of the equipment of this utility model;

[0020] Figure 2 This is a side view of the overall structure of the tank body of the equipment of this utility model.

[0021] The labels in the diagram represent: 1. Inlet pipe; 2. Primary reaction tank system; 3. Primary dissolved air contact module; 4. Primary air flotation separator; 5. Primary water collection system; 6. Sludge discharge tank; 7. Primary water intake system; 8. Secondary reaction tank system; 9. Secondary dissolved air contact module; 10. Secondary air flotation separator; 11. Secondary water collection system; 12. Clear water tank; 13. Storage tank; 14. Outlet; 15. Sludge discharge port; 16. Dissolved air system; 17. Vent; 18. Sludge scraping system; 19. Outlet valve plate adjustment system. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] The present invention will be further described below with reference to the embodiments.

[0024] Example 1

[0025] Reference Figure 1-2 This is the first embodiment of the present invention, which provides an integrated dual-effect air flotation device, including a tank body, an inlet pipe 1 fixedly installed at the lower end of one side of the tank body, a primary reaction tank system 2 installed at the rear end of the tank body near the inlet pipe 1, a primary dissolved air contact module 3 installed at the rear end of the tank body near the primary reaction tank system 2, a primary air flotation separation tank 4 installed at the rear end of the tank body near the primary dissolved air contact module 3, a secondary reaction tank system 8 installed at one end of the tank body near the primary reaction tank system 2, a primary water collection system 5 set at the inner center of the primary air flotation separation tank 4, a primary water intake system 7 set at the inner center of the secondary reaction tank system 8, a secondary dissolved air contact module 9 installed at the rear end of the tank body near the secondary dissolved air contact module 8, a secondary air flotation separation tank 10 installed at the rear end of the tank body near the secondary dissolved air contact module 9, and a secondary water collection system 11 set at one side of the interior of the secondary air flotation separation tank 10.

[0026] A water storage tank 13 is provided on the inner side of the equipment tank near the clear water tank 12. An outlet 14 is fixedly installed on the other side of the equipment tank near the lower end of the water storage tank 13. The water storage tank 13 is connected to a pipe for external discharge through the outlet 14. A dissolved air system 16 is fixedly installed on the side of the equipment tank near the water inlet pipe 1. Several vents 17 are evenly spaced on the inner side of the equipment tank near the bottom. A sludge scraping system 18 is rotatably installed between the primary air flotation separator 4 and the secondary air flotation separator 10. An outlet valve plate adjustment system 19 is provided at the lower end of the equipment tank near the clear water tank 12 and the water storage tank 13.

[0027] The equipment tank is equipped with a sludge scraping system 18. The scum that floats to the surface of the flocs in the water from the primary air flotation separator 4 and the secondary air flotation separator 10 is simultaneously scraped into the sludge discharge trough 6 by the sludge scraping system 18. The two stages of air flotation share a single sludge scraping system 18, which reduces costs while ensuring sludge discharge efficiency. The equipment tank contains a primary water collection system 5 and a primary water intake system 7. The water that has been treated in the primary air flotation separator 4 is placed in the lower tank and collected by the primary water collection system 5 through staggered and evenly spaced water collection holes, ensuring the clarity of the collected water and ensuring that the water is evenly distributed before entering the primary water intake system 7.

[0028] Example 2

[0029] Reference Figure 1-2 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: a connecting pipe is installed between the primary water collection system 5 and the primary water diversion system 7; a slag discharge trough 6 is provided on the inner side of the primary air flotation separator 4 near one end; a slag discharge port 15 is installed on the inner side of the equipment tank near the end of the slag discharge trough 6; the slag discharge trough 6 is connected to the external pipe through the slag discharge port 15; and a clear water tank 12 is provided on the inner side of the equipment tank near the slag discharge trough 6.

[0030] The remaining structure is the same as that in Example 1.

[0031] The workflow of this utility model is as follows:

[0032] First, raw water enters the primary reaction tank system 2 through the inlet pipe 1 for chemical mixing to form flocs. The mixed water is then distributed into the primary dissolved air contact module 3 through the primary reaction tank system 2, where it reacts with the dissolved air water. The flocs in the water instantly float to the surface and enter the primary air flotation separator 4. In the primary air flotation separator 4, the water that has fully contacted the dissolved air water is separated. The clear water is placed at the bottom, and the scum floats to the surface. The clear liquid enters the secondary reaction tank system 8 through the primary water intake system 7 for secondary chemical mixing, where the remaining flocs in the water react. The water then enters the secondary dissolved air contact module 9, where it reacts with the dissolved air water. The flocs in the water instantly float to the surface and enter the secondary air flotation separator 10. In the secondary air flotation separator 10, the water that has fully contacted the dissolved air water is separated. The clear water is placed at the bottom, and the scum floats to the surface. The scum is scraped into the sludge discharge trough 6 by the sludge scraping system 18 and discharged through the sludge discharge port 15 at the end of the sludge discharge trough 6.

[0033] Secondly, the clear liquid in the secondary air flotation separator 10 enters the clear water tank 12 through the secondary water collection system 11. The clear water enters the storage tank 13 through the water level regulating gate. The clear water is then discharged to the next process through the water outlet 14 at the bottom of the storage tank 13. The dissolved air system 16 extracts water from the clear water tank 12 for reuse, ensuring that the impurities in the water are extremely low and greatly increasing the service life of the dissolved air system 16.

[0034] Finally, recycled water is extracted through the recycling inlet at the bottom of the clear water tank 12, ensuring the water volume in the tank while ensuring extremely low impurities in the recycled water. This greatly extends the service life of the entire dissolved air system 16 and ensures that the dissolved air effect of the entire dissolved air system 16 remains at its best for a long time.

[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. An integrated dual-effect air flotation device, characterized in that: The equipment includes a tank body, with an inlet pipe (1) fixedly installed at the lower end of one side of the tank body. A primary reaction tank system (2) is installed at the rear end of the tank body near the inlet pipe (1). A primary dissolved air contact module (3) is installed at the rear end of the tank body near the primary reaction tank system (2). A primary air flotation separator (4) is installed at the rear end of the tank body near the primary dissolved air contact module (3). A secondary reaction tank system (8) is installed at one end of the tank body near the primary reaction tank system (2). A primary water collection system (5) is set at the center of the inner side of the primary air flotation separator (4). A primary water intake system (7) is set at the center of the inner side of the secondary reaction tank system (8). A secondary dissolved air contact module (9) is installed at the rear end of the tank body near the secondary dissolved air contact module (9). A secondary air flotation separator (10) is installed at the rear end of the tank body near the secondary dissolved air contact module (9). A secondary water collection system (11) is set at one side of the interior of the secondary air flotation separator (10).

2. The integrated dual-effect air flotation device according to claim 1, characterized in that: A connecting pipe is installed between the primary water collection system (5) and the primary water diversion system (7), and a slag discharge trough (6) is provided on the inner side of the primary air flotation separator (4) near one end.

3. The integrated dual-effect air flotation device according to claim 2, characterized in that: A slag discharge port (15) is installed on the inner side of the equipment pool near the end of the slag discharge trough (6). The slag discharge trough (6) is connected to a pipe for external discharge through the slag discharge port (15). A clear water pool (12) is provided on the inner side of the equipment pool near the slag discharge trough (6).

4. The integrated dual-effect air flotation device according to claim 3, characterized in that: A water storage tank (13) is provided on the inner side of the equipment pool near the clear water tank (12), and a water outlet (14) is fixedly installed on the other side of the equipment pool near the lower end of the water storage tank (13). The water storage tank (13) is connected to a pipe for external discharge through the water outlet (14).

5. The integrated dual-effect air flotation device according to claim 1, characterized in that: A dissolved air system (16) is fixedly installed on the side of the equipment tank near the water inlet pipe (1), and several vents (17) are evenly spaced on the inner side of the equipment tank near the bottom.

6. The integrated dual-effect air flotation device according to claim 4, characterized in that: A sludge scraping system (18) is installed rotatably between the primary air flotation separator (4) and the secondary air flotation separator (10) in the equipment tank. An outlet valve plate adjustment system (19) is installed at the lower end of the equipment tank near the clear water tank (12) and the storage tank (13).

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