Multi-stage aeration device for wastewater catalytic oxidation reactor

Abstract

This utility model discloses a multi-stage aeration device for a wastewater catalytic oxidation reactor, specifically relating to the field of wastewater treatment technology. It includes a catalytic tank with an inlet pipe connected to one side and an outlet pipe connected to the other. A circulating aeration mechanism is installed on the top of the catalytic tank. The circulating aeration mechanism includes a hanging rod, the bottom of which is fixedly connected to the top of the catalytic tank. A gas storage tank is fixedly connected to one side of the catalytic tank, and an air pump is fixedly connected to the other side. A flexible hose connects the output and input ends of the air pump, with one end of the hose connected to the top of the gas storage tank. This utility model utilizes a vertical rod to drive multiple sets of air outlets to reciprocate for stratified aeration, and adjusts the aeration rate using a positioning frame and sealing strip. Simultaneously, a modular feeding mechanism is adopted, allowing for flexible addition of various liquid catalysts through replaceable storage tanks. Combined with nozzles, the mixing efficiency between the catalyst and wastewater is improved, resulting in an overall enhanced mass transfer effect and reaction rate between the oxidant and pollutants.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and more specifically, to a multi-stage aeration device for a wastewater catalytic oxidation reactor. Background Technology

[0002] With industrial development, wastewater composition is becoming increasingly complex. Traditional biological treatment technologies (such as activated sludge process) have limited efficiency in treating high concentrations of recalcitrant organic matter (such as phenols, dyes, pesticides, pharmaceutical intermediates, etc.), and there is an urgent need for more efficient advanced oxidation technologies.

[0003] In practical applications, during the aeration and catalytic oxidation of wastewater, the aeration position of the oxidant in the wastewater is relatively fixed, resulting in a relatively low contact area between the wastewater and the oxidant, which leads to a decrease in the catalytic oxidation reaction rate of the wastewater. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a multi-stage aeration device for a wastewater catalytic oxidation reactor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A multi-stage aeration device for a wastewater catalytic oxidation reactor includes a catalytic tank. One side of the catalytic tank is connected to an inlet pipe, and the other side is connected to an outlet pipe. A circulating aeration mechanism is installed on the top of the catalytic tank. The circulating aeration mechanism includes a hanging rod, the bottom of which is fixedly connected to the top of the catalytic tank. An air storage tank is fixedly connected to one side of the catalytic tank, and an air pump is fixedly connected to the other side. A flexible hose connects the output and input ends of the air pump. One end of the flexible hose is connected to the top of the air storage tank, and the other end of the flexible hose is fixedly connected to a water pipe. A servo motor is fixedly connected to the other side of the catalytic tank, and a threaded rod is fixedly connected to the output end of the servo motor. The threaded rod is threadedly connected to a transmission frame on its outer side. One side of the transmission frame is fixedly connected to the outer side of the water pipe. The outer side of the transmission frame is slidably connected to the inner side of the catalytic converter. Two vertical rods are fixedly connected to the bottom of the water pipe. A spiral air passage is opened on the inner side of the vertical rod. The inner side of the hose is sleeved with the outer side of the hanging rod. Multiple air outlets are opened at the bottom of the vertical rod. Multiple air outlets are opened on the outer side of the vertical rod. One end of each air outlet is connected to the inner side of the spiral air passage. An electric push rod is fixedly connected to the outer side of the vertical rod. A positioning frame is fixedly connected to the bottom end of the electric push rod. Multiple sealing strips are fixedly connected to the outer side of the positioning frame. A feeding mechanism is provided on the outer side of the catalytic converter.

[0007] By adopting the above technical solution: using hose one, water pipe one and vertical rod to transport the oxidant as gas, and outputting and aerating the oxidant through spiral air passage, air outlet one and air outlet two, the two vertical rods can move back and forth inside the waste gas, so that the oxidant and waste gas are fully mixed.

[0008] As a further description of the above technical solution: the feeding mechanism includes multiple placement racks, one side of which is fixedly connected to the outside of the catalytic box, a liquid storage tank is snapped into the inside of the placement rack, a fixing cover is snapped into the outside of the liquid storage tank, a water pump is fixedly connected to the outside of the fixing cover, a water suction pipe is connected to the input end of the water pump, a second flexible hose is connected to the input end of the water pump, and a nozzle is fixedly connected to one end of the second flexible hose.

[0009] By adopting the above technical solution: by replacing different liquid storage tanks and using the quick connection between the fixed cover and the liquid storage tank, different types of liquid catalysts can be quickly replaced, and the liquid catalysts can be dispersed and sprayed using a nozzle.

[0010] The technical effects and advantages of this utility model are as follows:

[0011] By setting up a circulating aeration mechanism, compared with the existing technology, the reciprocating circular movement of two vertical rods allows multiple air outlets 1 and 2 to reciprocate aeration inside the wastewater. The up-and-down movement of the positioning frame and sealing strip allows the aeration volume of multiple air outlets 1 to be adjusted and controlled, and the upper and lower layers of wastewater are aerated in stages, thereby improving the mixing efficiency of wastewater and oxidant.

[0012] By setting up a feeding mechanism, compared with the existing technology, multiple liquid storage tanks can be replaced in a timely manner to replace different types of liquid catalysts. The corresponding nozzles can be used to disperse and spray the liquid catalyst, thereby improving the mixing efficiency of the liquid catalyst and wastewater. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the top structure of this utility model.

[0015] Figure 3 This is a partial structural diagram of the connection between the transmission frame and the vertical rod of this utility model.

[0016] Figure 4 This is a partial schematic diagram of the connection between the liquid storage tank and the fixing cover of this utility model.

[0017] Figure 5 This is a partial schematic diagram of the connection between the vertical rod and the spiral air passage of this utility model.

[0018] Figure 6 This is a schematic diagram of the connection between the vertical rod and the air outlet of this utility model.

[0019] Figure 7 This is a partial structural diagram of the connection between the transmission frame and the sealing strip of this utility model.

[0020] The attached diagram is labeled as follows: 1. Catalytic converter; 2. Inlet pipe; 3. Outlet pipe; 4. Hanging rod; 5. Gas storage tank; 6. Air pump; 7. Hose 1; 8. Water pipe 1; 9. Servo motor; 10. Threaded rod; 11. Transmission frame; 12. Vertical rod; 13. Spiral air passage; 14. Outlet 1; 15. Electric push rod; 16. Positioning frame; 17. Sealing strip; 18. Placement rack; 19. Liquid storage tank; 20. Fixing cover; 21. Water pump; 22. Suction pipe; 23. Hose 2; 24. Nozzle; 25. Outlet 2. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] The embodiments disclosed in this application are as follows: Figure 1-7The wastewater catalytic oxidation reactor multi-stage aeration device shown includes a catalytic tank 1, with an inlet pipe 2 connected to one side and an outlet pipe 3 connected to the other side. A circulating aeration mechanism is installed on the top of the catalytic tank 1. The circulating aeration mechanism includes a hanging rod 4, the bottom of which is fixedly connected to the top of the catalytic tank 1. An air storage tank 5 is fixedly connected to one side of the catalytic tank 1, and an air pump 6 is fixedly connected to one side of the catalytic tank 1. A hose 7 connects the output and input ends of the air pump 6. One end of the hose 7 is connected to the top of the air storage tank 5, and the other end of the hose 7 is fixedly connected to a water pipe 8. A servo motor 9 is fixedly connected to the other side of the catalytic tank 1. A threaded rod 10 is fixedly connected to the output end of the servo motor 9, and a transmission frame 11 is threadedly connected to the outer side of the threaded rod 10. One side is fixedly connected to the outside of water pipe 8. The transmission frame 11 drives two vertical rods 12 to move cyclically inside the catalytic tank 1. The outside of the transmission frame 11 is slidably connected to the inside of the catalytic tank 1. Two vertical rods 12 are fixedly connected to the bottom of water pipe 8. A spiral air passage 13 is opened on the inside of the vertical rod 12. The inside of hose 7 is sleeved with the outside of hanging rod 4. Multiple air outlets 25 are opened at the bottom of the vertical rod 12. Multiple air outlets 14 are opened on the outside of the vertical rod 12. One end of the air outlet 14 is connected to the inside of the spiral air passage 13. An electric push rod 15 is fixedly connected to the outside of the vertical rod 12. A positioning frame 16 is fixedly connected to the bottom of the electric push rod 15. Multiple sealing strips 17 are fixedly connected to the outside of the positioning frame 16. A feeding mechanism is set on the outside of the catalytic tank 1.

[0023] The oxidant is sprayed and aerated through the spiral air channel 13 through the air outlet 14 and the air outlet 25, so that the oxidant can fully contact inside the wastewater. The electric push rod 15 drives the positioning frame 16 and the sealing strip 17, so that the positioning frame 16 slides on the outside of the vertical rod 12, and the multiple sealing strips 17 separate from the multiple air outlets 14 on the outside of the vertical rod 12, so that the multiple air outlets 14 can perform staged catalytic oxidation of the upper and lower layers of wastewater.

[0024] Reference Figure 1 and Figure 4 As shown, the feeding mechanism includes multiple placement racks 18. One side of the placement rack 18 is fixedly connected to the outside of the catalyst tank 1. A liquid storage tank 19 is snapped into the inside of the placement rack 18. A fixing cover 20 is snapped into the outside of the liquid storage tank 19. A water pump 21 is fixedly connected to the outside of the fixing cover 20. A suction pipe 22 is connected to the input end of the water pump 21. A second hose 23 is connected to the input end of the water pump 21. A nozzle 24 is fixedly connected to one end of the second hose 23. By using the fixing cover 20 to snap into the outside of the liquid storage tank 19, the water pump 21 draws liquid catalyst from inside the liquid storage tank 19 through the suction pipe 22 and the second hose 23, and uses the nozzle 24 to disperse and spray the liquid catalyst.

[0025] The working principle of this utility model is as follows: When catalytically oxidizing wastewater, wastewater is first introduced into the catalytic tank 1 through the inlet pipe 2. Multiple storage tanks 19 are inserted into the inside of multiple placement racks 18 on the outside of the catalytic tank 1. Then, a fixing cover 20 is placed on top of the storage tanks 19, and the suction pipe 22 is inserted into the storage tanks 19. The water pump 21 then uses the suction pipe 22 and the hose 23 to draw the liquid catalyst from the multiple storage tanks 19 into the nozzle 24. The liquid catalyst is sprayed into the wastewater inside the catalytic tank 1 through the nozzle 24. The servo motor 9 drives the threaded rod 10 to perform threaded transmission on the transmission frame 11, causing the transmission frame 11 to slide inside the catalytic tank 1. The transmission frame 11 drives the water pipe 8, the two vertical rods 12, and the hose 7 to enter the catalytic tank 1. The pump 6 reciprocates, drawing oxidant from the gas storage tank 5 through hose 7, water pipe 8, and two vertical rods 12 into the spiral air passage 13. The oxidant is then sprayed out through multiple air outlets 14 and 25 on the bottom of the vertical rods 12, aerating the wastewater and ensuring thorough mixing and oxidation. After the wastewater at the bottom of the catalytic tank 1 is catalytically oxidized, the electric push rod 15 drives the positioning frame 16 and sealing strip 17 to slide on the outside of the vertical rod 12. This loosens the seals on the corresponding air outlets 14, allowing the air outlets 14 on the top of the vertical rod 12 to aerate and catalytically oxidize the top of the wastewater inside the catalytic tank 1, ensuring complete catalytic oxidation of the wastewater.

[0026] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0027] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-stage aeration device for a wastewater catalytic oxidation reactor, comprising a catalytic tank (1), characterized in that: The catalytic tank (1) is connected to an inlet pipe (2) on one side and an outlet pipe (3) on the other side. A circulating aeration mechanism is provided on the top of the catalytic tank (1). The circulating aeration mechanism includes a hanging rod (4), the bottom of which is fixedly connected to the top of the catalytic tank (1). A gas storage tank (5) is fixedly connected to one side of the catalytic tank (1). An air pump (6) is fixedly connected to one side of the catalytic tank (1). A hose (7) is connected between the output end and the input end of the air pump (6). One end of the hose (7) is connected to the top of the gas storage tank (5). A water pipe (8) is fixedly connected to the other end of the hose (7). A servo motor (9) is fixedly connected to the other side of the catalytic tank (1). A threaded rod (10) is fixedly connected to the output end of the servo motor (9). A transmission frame (11) is threadedly connected to the outside of the threaded rod (10). A feeding mechanism is provided on the outside of the catalyst box (1).

2. The multi-stage aeration device for the wastewater catalytic oxidation reactor according to claim 1, characterized in that: The transmission frame (11) is fixedly connected to the outside of the water pipe (8) on one side, and the outside of the transmission frame (11) is slidably connected to the inside of the catalytic box (1). Two vertical rods (12) are fixedly connected to the bottom of the water pipe (8). A spiral air passage (13) is opened on the inside of the vertical rod (12). The inside of the hose (7) is sleeved with the outside of the hanging rod (4).

3. The multi-stage aeration device for the wastewater catalytic oxidation reactor according to claim 2, characterized in that: The bottom of the vertical rod (12) is provided with multiple air outlet holes 2 (25), and the outside of the vertical rod (12) is provided with multiple air outlet holes 1 (14). One end of the air outlet hole 1 (14) is connected to the inside of the spiral air passage (13).

4. The multi-stage aeration device for the wastewater catalytic oxidation reactor according to claim 2, characterized in that: An electric push rod (15) is fixedly connected to the outside of the vertical rod (12), and a positioning frame (16) is fixedly connected to the bottom end of the electric push rod (15). Multiple sealing strips (17) are fixedly connected to the outside of the positioning frame (16).

5. The multi-stage aeration device for the wastewater catalytic oxidation reactor according to claim 1, characterized in that: The feeding mechanism includes multiple placement racks (18), one side of which is fixedly connected to the outside of the catalytic box (1), and a liquid storage tank (19) is snapped into the inside of the placement rack (18).

6. The multi-stage aeration device for the wastewater catalytic oxidation reactor according to claim 5, characterized in that: The liquid storage tank (19) is fitted with a fixing cover (20) on the outside, and a water pump (21) is fixedly connected to the outside of the fixing cover (20).

7. The multi-stage aeration device for the wastewater catalytic oxidation reactor according to claim 6, characterized in that: The water pump (21) has a suction pipe (22) connected to its input end, and a hose (23) connected to its input end. One end of the hose (23) is fixedly connected to a nozzle (24).

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