Wastewater treatment device with microelectrolysis and Fenton cylinder-in-cylinder structure

Abstract

The utility model provides a wastewater treatment device with a microelectrolysis and Fenton cylinder-in-cylinder structure, which relates to the field of wastewater treatment equipment, and comprises a treatment tank, a support plate is fixedly arranged at the bottom end in the treatment tank, an inner cylinder is arranged at the top of the support plate, the bottom of the inner cylinder is connected with the support plate through a fixed disc, and the inner cylinder is arranged in the treatment tank. A grating plate is fixedly arranged at the bottom end of the inner side of the inner cylinder, iron-carbon filler is arranged at the top of the grating plate, through holes for wastewater to flow are formed in the surfaces of the supporting plate and the fixed disc, stirring equipment is fixedly arranged at the top of the treatment tank, a plurality of drainage plates are movably arranged on the inner side of the inner cylinder, and the wastewater purification effect is improved through the structure.

Description

Technical Field

[0001] The utility model relates to the field of wastewater treatment equipment, in particular to a wastewater treatment device with a micro-electrolysis and Fenton-tube-in-tube structure. Background Art

[0002] Micro-electrolysis and Fenton wastewater treatment equipment is a device for treating highly difficult to oxidize wastewater. It combines the micro-electrolysis wastewater treatment technology with the Fenton method for treating difficult-to-degrade wastewater. Micro-electrolysis mainly uses electrodes under the action of an electric field to decompose organic matter, heavy metals and other substances in wastewater into gases, ions or precipitates, thereby achieving wastewater purification. Fenton catalyzes the chain reaction between divalent iron ions and hydrogen peroxide to generate hydroxyl radicals, which non-selectively oxidize most of the organic matter in the water through hydroxyl radicals, causing them to eventually mineralize into small molecules such as inorganic salts, thereby achieving the effect of wastewater purification.

[0003] Existing micro-electrolysis and Fenton wastewater treatment devices usually only set up a micro-electrolysis reaction zone and a Fenton reaction zone respectively inside the same treatment tank, and stir the wastewater through a stirring device on the top of the treatment tank, so that the wastewater can better react in the two reaction zones. However, since it is inside the same treatment tank, the wastewater can only be driven into the micro-electrolysis reaction zone and the Fenton reaction zone by the stirring device, and then react to purify the wastewater, resulting in poor wastewater purification effect.

[0004] Therefore, it is necessary to provide a new micro-electrolysis, Fenton tube-in-tube structure wastewater treatment device to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a wastewater treatment device with a micro-electrolysis and Fenton-tube-in-tube structure.

[0006] The utility model provides a micro-electrolysis and Fenton-in-tube structure wastewater treatment device, which comprises a treatment tank, a support plate is fixedly provided at the bottom end of the interior of the treatment tank, an inner tube is provided on the top of the support plate, the bottom of the inner tube is connected to the support plate via a fixed disk, the fixed disk is in the shape of an inverted cone, a grille plate is fixedly provided at the bottom end of the inner side of the inner tube, an iron-carbon filler is provided on the top of the grille plate, through holes are provided on the surfaces of the support plate and the fixed disk for wastewater to flow, a stirring device is fixedly provided on the top of the treatment tank, and a plurality of drainage plates are movably provided on the inner side of the inner tube.

[0007] Preferably, the stirring device includes a vertical mixer and a connecting rod, one end of the vertical mixer is fixedly connected to the top of the processing tank, one end of the connecting rod is fixedly connected to the output end of the vertical mixer, and the other end of the connecting rod passes through the top of the processing tank and extends to the interior of the inner cylinder, and a plurality of paddles are provided at one end of the connecting rod located inside the inner cylinder, and the paddles are rotatably connected to the connecting rod through a movable column.

[0008] Preferably, a mud storage hopper is fixedly provided at the bottom of the processing tank, a mud discharge port is provided at the bottom of the mud storage hopper, and an inspection port is provided at the outer side of the mud storage hopper.

[0009] Preferably, a plurality of legs are provided on the outside of the processing tank.

[0010] Preferably, an aeration pipe is provided on the top of the treatment tank, the bottom of the aeration pipe passes through the top of the treatment tank and extends into the interior of the treatment tank, and a perforated pipe is fixedly provided at the bottom of the aeration pipe, one end of the perforated pipe away from the aeration pipe passes through the interior of the fixed plate, and a plurality of through holes are provided on the surface of the perforated pipe.

[0011] Preferably, a guide plate is provided inside the processing tank, the guide plate is arranged in a ring shape, and the top of the guide plate is fixedly connected to the top of the inner side of the processing tank, and the guide plate is located between the inner cylinder and the processing tank.

[0012] Preferably, a plurality of circular through grooves are provided on the surface of the guide plate.

[0013] Preferably, a water inlet and a water outlet are respectively provided on the outside of the treatment tank.

[0014] Compared with the related art, the micro-electrolysis and Fenton-tube-in-tube wastewater treatment device provided by the utility model has the following beneficial effects:

[0015] 1. Add wastewater into the treatment tank, mix the wastewater and additives evenly and flow to the bottom of the treatment tank, so that the wastewater flows into the inner tube through the through holes opened on the surface of the support plate and the fixed plate, and guide the wastewater to flow to the top of the inner tube through the stirring device, and purify the wastewater through the iron-carbon filler arranged inside the inner tube. At the same time, under the action of the stirring device, a liquid level difference is formed between the inner tube and the treatment tank, so that most of the wastewater in the inner tube flows into the treatment tank again, and the purified wastewater is mixed with the unpurified wastewater in the treatment tank, and reacts with the additive again, and circulates in sequence to improve the purification effect of the wastewater.

[0016] 2. When the wastewater flows through the iron-carbon filler to the top of the inner tube, the wastewater impacts the drainage plate arranged on the inner side of the inner tube, thereby driving the drainage plate to rotate. Due to the rotation of the drainage plate, the wastewater will experience continuous stirring and mixing, further enhancing the mixing of the wastewater and the additive.

[0017] 3. Because the fixed plate is in the shape of an inverted cone, its narrow bottom can provide more concentrated support force, while its wide top can better disperse and withstand the pressure from the inner cylinder, thereby providing stability to the inner cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall structure of the micro-electrolysis and Fenton-tube-in-tube wastewater treatment device provided by the utility model is shown in FIG. Figure 1 ;

[0019] Figure 2 The overall structure of the micro-electrolysis and Fenton-tube-in-tube wastewater treatment device provided by the utility model is shown in FIG. Figure 2 ;

[0020] Figure 3 Schematic diagram of the cross-sectional structure of the micro-electrolysis and Fenton-tube-in-tube wastewater treatment device provided by the utility model Figure 1 ;

[0021] Figure 4 A schematic diagram of the overall structure of the stirring device provided by the utility model;

[0022] Figure 5 for Figure 4 A is a schematic diagram of the enlarged structure shown;

[0023] Figure 6 Schematic diagram of the cross-sectional structure of the micro-electrolysis and Fenton-tube-in-tube wastewater treatment device provided by the utility model Figure 2 .

[0024] Numbers in the figure: 1. treatment tank; 2. support plate; 3. inner tube; 4. fixed plate; 5. grille plate; 6. iron-carbon filler; 7. through hole; 8. drainage plate; 9. vertical mixer; 10. connecting rod; 11. paddle; 12. movable column; 13. mud storage hopper; 14. mud discharge port; 15. inspection port; 16. support leg; 17. aeration pipe; 18. perforated pipe; 19. guide plate; 20. water inlet; 21. water outlet; 22. odor collection hole; 23. hydrochloric acid dosing hole; 24. hydrogen peroxide dosing hole; 25. defoaming agent dosing; 26. liquid level meter; 27. pH meter; 28. reinforcement rib. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0026] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 as well as Figure 6 ,in, Figure 1The overall structure of the micro-electrolysis and Fenton-tube-in-tube wastewater treatment device provided by the utility model is shown in FIG. Figure 1 ; Figure 2 The overall structure of the micro-electrolysis and Fenton-tube-in-tube wastewater treatment device provided by the utility model is shown in FIG. Figure 2 ; Figure 3 Schematic diagram of the cross-sectional structure of the micro-electrolysis and Fenton-tube-in-tube wastewater treatment device provided by the utility model Figure 1 ; Figure 4 A schematic diagram of the overall structure of the stirring device provided by the utility model; Figure 5 for Figure 4 A is a schematic diagram of the enlarged structure shown; Figure 6 Schematic diagram of the cross-sectional structure of the micro-electrolysis and Fenton-tube-in-tube wastewater treatment device provided by the utility model Figure 2 .

[0027] In the specific implementation process, Figure 1-Figure 6 As shown, a micro-electrolysis, Fenton tube-in-tube structure wastewater treatment device comprises a treatment tank 1, a support plate 2 is fixedly provided at the bottom end of the treatment tank 1, and an inner tube 3 is provided on the top of the support plate 2, the bottom of the inner tube 3 is connected to the support plate 2 through a fixed plate 4, the fixed plate 4 is in the shape of an inverted cone, a grid plate 5 is fixedly provided at the bottom end of the inner side of the inner tube 3, an iron-carbon filler 6 is provided on the top of the grid plate 5, and through holes 7 for wastewater flow are provided on the surfaces of the support plate 2 and the fixed plate 4, a stirring device is fixedly provided at the top of the treatment tank 1, a plurality of drainage plates 8 are movably provided on the inner side of the inner tube 3, the stirring device comprises a vertical mixer 9 and a connecting rod 10, one end of the vertical mixer 9 is fixedly connected to the top of the treatment tank 1, one end of the connecting rod 10 is fixedly connected to the output end of the vertical mixer 9, and the other end of the connecting rod 10 passes through the top of the treatment tank 1 and extends to the inside of the inner tube 3, and a plurality of blades 11 are provided at one end of the connecting rod 10 located inside the inner tube 3, and the blades 11 are rotatably connected to the connecting rod 10 through a movable column 12;

[0028] A mud storage bucket 13 is fixedly provided at the bottom of the treatment tank 1, and a mud discharge port 14 is provided at the bottom of the mud storage bucket 13, an inspection port 15 is provided on the outside of the mud storage bucket 13, a plurality of legs 16 are provided on the outside of the treatment tank 1, an aeration pipe 17 is provided on the top of the treatment tank 1, the bottom of the aeration pipe 17 passes through the top of the treatment tank 1 and extends into the inside of the treatment tank 1, and a perforated pipe 18 is fixedly provided at the bottom of the aeration pipe, and one end of the perforated pipe 18 away from the aeration pipe 17 passes into the inside of the fixed plate 4, and a plurality of through holes 7 are provided on the surface of the perforated pipe 18, a guide plate 19 is provided inside the treatment tank 1, the guide plate 19 is arranged in an annular shape, and the top of the guide plate 19 is fixedly connected to the top of the inner side of the treatment tank 1, and the guide plate 19 is located between the inner tube 3 and the treatment tank 1, a plurality of circular through grooves are provided on the surface of the guide plate 8, and a water inlet 20 and a water outlet 21 are provided on the outside of the treatment tank 1;

[0029] An inspection port 15 is also provided on the top and the outside of the treatment tank 1. A plurality of odor collecting holes 22 are provided on the top of the treatment tank 1. A hydrochloric acid dosing hole 23, a hydrogen peroxide dosing hole 24 and a defoaming agent dosing hole 25 are respectively provided on the top of the treatment tank 1. A liquid level gauge 26 and a pH meter 27 are also fixedly provided on the top of the treatment tank 1. The liquid level change of the wastewater in the treatment tank 1 is monitored in real time by the liquid level gauge 26, and the pH value of the wastewater in the treatment tank 1 is monitored in real time by the pH meter 27. A plurality of reinforcing ribs 28 are provided on the outside of the treatment tank 1. The plurality of reinforcing ribs 28 provided on the outside of the treatment tank 1 can reinforce the strength of the treatment tank 1 to ensure the stability of the treatment tank 1 when in use. A surface of the support plate 2 provided at the bottom end of the treatment tank 1 is provided with gaps for the wastewater to pass through.

[0030] The working principle provided by the utility model is as follows: wastewater is added into the treatment tank 1 through the water inlet 20, and hydrochloric acid, hydrogen peroxide and defoaming agent are added respectively through the hydrochloric acid dosing hole 23, the hydrogen peroxide dosing hole 24 and the defoaming agent dosing hole 25, so that the wastewater is fully mixed with the hydrochloric acid, hydrogen peroxide and defoaming agent, and flows to the bottom of the treatment tank 1, and flows into the mud storage bucket 13 through the pores opened on the surface of the support plate 2, and at the same time, the motor is started, and the connecting rod 10 and a plurality of blades 11 are driven by the motor to rotate, and the wastewater in the mud storage bucket 13 is guided through the through holes 7 opened on the surfaces of the support plate 2 and the fixed plate 4 through the rotation of the blades 11, so that the wastewater flows into the inner tube 3, and at the same time, the external air is introduced into the treatment tube through the aeration pipe 17 arranged on the top of the treatment tank 1, and the air is evenly distributed through the multiple through holes 7 opened on the surface of the perforated pipe 18, so that the air flows from the bottom of the inner tube 3 to the top along with the wastewater;

[0031] The iron-carbon filler 6 disposed inside the inner cylinder 3 reacts with the macromolecular refractory organic matter in the wastewater, thereby decomposing the macromolecular organic matter in the wastewater. At the same time, when the wastewater flows to the top of the inner cylinder 3, the connecting rod 10 and the blade 11 are driven to rise by the vertical mixer 9, so that the blade 11 drives the wastewater to be lifted upward and enter between the guide plate 19 and the inner cylinder 3. Under the action of the vertical mixer 9, a liquid level difference is formed between the inner cylinder 3 and the treatment tank 1, so that most of the wastewater in the inner cylinder 3 flows into the treatment tank 1 again, and the purified wastewater is mixed with the unpurified wastewater in the treatment tank 1, and reacts with the added hydrochloric acid, hydrogen peroxide and defoaming agent again, and circulates in sequence to achieve a better purification effect, and the remaining wastewater is discharged outward through the water outlet 21 by gravity;

[0032] The waste gas generated by the wastewater is discharged to the outside through the multiple odor collecting holes 22 arranged at the top of the treatment tank 1, and the sludge generated after the wastewater reacts with hydrochloric acid, hydrogen peroxide and defoaming agent is stored through the mud storage hopper 13 arranged at the bottom of the treatment tank 1, and discharged through the mud discharge port 14;

[0033] The inside of the mud storage hopper 13 is inspected through the inspection port 15 provided on the outside of the mud storage hopper 13, and the inside of the processing tank 1 is inspected and the iron-carbon filler 6 in the inner tube 3 is replenished through the inspection port 15 provided on the outside of the processing tank 1 and the top of the processing tank 1. The iron-carbon filler 6 added in the inner tube 3 is supported by the grid plate 5 to prevent the iron-carbon filler 6 from falling into the mud storage hopper 13;

[0034] Since the paddle 11 is rotatably connected to the connecting rod 10 via the movable column 12, when the connecting rod 10 drives the paddle 11 to move, the paddle 11 will rotate due to the impact of the wastewater, thereby more effectively stirring and mixing the wastewater, and at the same time reducing the resistance between the paddle 11 and the wastewater, so that the wastewater is more easily guided to the top of the inner tube 3, and when the wastewater flows to the top of the inner tube 3, the wastewater impacts the guide plate 8 arranged on the inner side of the inner tube 3, thereby driving the guide plate 8 to rotate, and due to the rotation of the guide plate 8, the wastewater will experience continuous stirring and mixing, further enhancing the mixing of the wastewater with other reagents;

[0035] A plurality of legs 16 disposed on the outside of the processing tank 1 provide a better supporting force for the processing tank 1 .

[0036] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A micro-electrolysis, Fenton tube-in-tube structure wastewater treatment device, characterized in that: The invention comprises a treatment tank (1), wherein a support plate (2) is fixedly provided at the bottom end of the treatment tank (1), and an inner tube (3) is provided at the top of the support plate (2); the bottom of the inner tube (3) is connected to the support plate (2) via a fixed plate (4); the fixed plate (4) is in the shape of an inverted cone; a grid plate (5) is fixedly provided at the bottom end of the inner side of the inner tube (3); an iron-carbon filler (6) is provided at the top of the grid plate (5); through holes (7) for wastewater to flow are provided on the surfaces of the support plate (2) and the fixed plate (4); a stirring device is fixedly provided at the top of the treatment tank (1); and a plurality of drainage plates (8) are movably provided inside the inner tube (3).

2. The micro-electrolysis and Fenton-in-tube wastewater treatment device according to claim 1 is characterized in that: The stirring device comprises a vertical mixer (9) and a connecting rod (10), one end of the vertical mixer (9) is fixedly connected to the top of the processing tank (1), one end of the connecting rod (10) is fixedly connected to the output end of the vertical mixer (9), and the other end of the connecting rod (10) passes through the top of the processing tank (1) and extends to the inside of the inner cylinder (3), and one end of the connecting rod (10) located inside the inner cylinder (3) is provided with a plurality of paddles (11), and the paddles (11) are rotatably connected to the connecting rod (10) through a movable column (12).

3. The micro-electrolysis and Fenton-in-tube wastewater treatment device according to claim 2 is characterized in that: A mud storage hopper (13) is fixedly provided at the bottom of the processing tank (1), a mud discharge port (14) is provided at the bottom of the mud storage hopper (13), and an inspection port (15) is provided on the outside of the mud storage hopper (13).

4. The micro-electrolysis and Fenton-in-tube wastewater treatment device according to claim 3 is characterized in that: A plurality of supporting legs (16) are provided on the outside of the processing tank (1).

5. The micro-electrolysis and Fenton-in-tube wastewater treatment device according to claim 4 is characterized in that: An aeration pipe (17) is provided at the top of the treatment tank (1), the bottom of the aeration pipe (17) passes through the top of the treatment tank (1) and extends into the interior of the treatment tank (1), and a perforated pipe (18) is fixedly provided at the bottom of the aeration pipe, one end of the perforated pipe (18) away from the aeration pipe (17) passes through the interior of the fixed plate (4), and a plurality of through holes (7) are provided on the surface of the perforated pipe (18).

6. The micro-electrolysis and Fenton-in-tube wastewater treatment device according to claim 5 is characterized in that: A guide plate (19) is provided inside the processing tank (1), the guide plate (19) is arranged in an annular shape, and the top of the guide plate (19) is fixedly connected to the top of the inner side of the processing tank (1), and the guide plate (19) is located between the inner cylinder (3) and the processing tank (1).

7. The micro-electrolysis and Fenton-in-tube wastewater treatment device according to claim 5 is characterized in that: The surface of the guide plate (8) is provided with a plurality of circular through grooves.

8. The micro-electrolysis and Fenton-in-tube wastewater treatment device according to claim 5 is characterized in that: The outside of the treatment tank (1) is respectively provided with a water inlet (20) and a water outlet.

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