Sand filtration ozone circulating device

Abstract

The utility model provides a sand filtration ozone circulating device which comprises a metal plate box body, a heat dissipation opening is formed in the side wall of the metal plate box body, a bending angle is arranged at the joint of the metal plate side walls of the metal plate box body, an assembly hole is formed in the box side wall of one side of the metal plate box body, and the heat dissipation opening is communicated with the assembly hole. A butt joint through hole is formed in the side wall of the other side box of the metal plate box body, a welding rivet is installed on the butt joint through hole, a welding edge is fixedly connected to the surface of a back plate on the metal plate box body, and a cutting seam is formed in the connecting position of the welding edge and a top plate. The sewage treatment device is provided with the sand filter system and the catalytic ozonation system, and the catalytic ozonation system is used for removing organic matters in sewage through mutual matching of the second water inlet pipe, the second clear water pipe, the air inlet, the microporous aerator, the catalyst packed column, the ultrasonic liquid level meter and the tank legs; according to the utility model, pollutants such as suspended solids, colloids and organic matters in the micro-polluted water source can be efficiently purified.

Description

Technical Field

[0001] The utility model belongs to the technical field of micro-polluted water source treatment, in particular to a sand filtration ozone circulation device. Background Art

[0002] Micro-polluted water sources in my country refer to water sources containing trace amounts of organic matter, microorganisms, heavy metal ions, etc. The pollutants have the characteristics of low concentration, many types, and are difficult to remove. These characteristics will cause water hypoxia, causing aquatic plants and animals to die due to hypoxia, and further deteriorating water quality. The purpose of water reuse can be achieved through proper treatment.

[0003] The current treatment technologies mainly include physical technology, advanced oxidation technology, etc., but physical technology alone cannot effectively remove pollutants such as organic matter, ammonia nitrogen, etc. in slightly polluted water, and advanced oxidation technology alone cannot remove suspended matter and other substances.

[0004] In summary, the utility model provides a sand filtration ozone circulation device to solve the above problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a sand filtration ozone circulation device to solve the problem in the prior art that physical technology alone cannot effectively remove pollutants such as organic matter and ammonia nitrogen in slightly polluted water, and advanced oxidation technology alone cannot remove suspended matter and other substances.

[0006] A sand filtration ozone circulation device comprises a sheet metal box, a side wall of the sheet metal box is provided with a heat dissipation port, a bending angle is provided at the connection between the sheet metal side walls of the sheet metal box, an assembly hole is provided on one side wall of the sheet metal box, a docking through hole is provided on the other side wall of the sheet metal box, a welding rivet is installed on the docking through hole, a welding edge is fixedly connected to the surface of the back plate of the sheet metal box, and a cutting seam is provided at the connection between the welding edge and the top plate.

[0007] Preferably, the sheet metal box includes a first side panel, a bottom panel, a second side panel, a top panel and a back panel, the bottom of the first side panel is fixedly connected to the bottom panel, the other side of the bottom panel is fixedly connected to the second side panel, the top of the second side panel is fixedly connected to the top panel, and the side wall of the second side panel is fixedly connected to the back panel.

[0008] Preferably, a welding edge is fixedly connected to the top of the back plate, and the thickness of the welding edge is the same as the thickness of the side wall of the top plate.

[0009] Preferably, the first side panel, the bottom panel, the second side panel, the top panel and the back panel are cut into an integral structure.

[0010] Preferably, one end of the welding rivet passes through the butt through hole and is riveted inside the assembly hole, and the welding rivet is connected to the connection point by welding.

[0011] Preferably, bending angles are provided at the connecting bends of the first side plate, the bottom plate, the second side plate, the top plate and the back plate.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model has a sand filtration system and a catalytic ozone oxidation system. The sand filtration system realizes the separation of sewage and sludge as well as some larger suspended particles and colloids through the mutual cooperation among a rotating motor, a rotating shaft, a stirring rod, an overflow pipe, a filter screen, a valve, a first water inlet pipe, a clean water inlet, a sewage inlet, a filtering layer, a sewage pipe, and a first clean water outlet pipe, and can wash the inside of the sand filter tank at the same time; the catalytic ozone oxidation system realizes the removal of organic matter in sewage through the mutual cooperation among a second water inlet pipe, a second clean water pipe, an air inlet, a microporous aerator, a catalyst filling column, an ultrasonic level meter, and tank legs. The utility model can efficiently purify pollutants such as suspended matter, colloid, and organic matter in slightly polluted water sources. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the micro-polluted water circulation treatment system of the utility model.

[0015] In the figure: 1. rotating motor; 2. rotating shaft; 3. stirring rod; 4. overflow pipe; 5. filter screen; 6. valve; 7. first water inlet pipe; 8. clean water inlet; 9. sewage inlet; 10. filter layer; 11. sewage pipe; 12. first clean water outlet pipe; 13. flange; 14. second water inlet pipe; 15. second clean water pipe; 16. air inlet; 17. microporous aerator; 18. catalyst packing column; 19. ultrasonic level meter; 20. tank leg. DETAILED DESCRIPTION

[0016] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0017] like Figure 1 As shown, the utility model provides a sand filter ozone circulation device, including a sand filter system and a catalytic ozone oxidation system, wherein the sand filter system includes a sand filter tank and a tank leg 20, the sand filter tank is installed on the tank leg 20, a filter screen 5 is arranged in the sand filter tank to form an upper sand filter tank part and a lower sand filter tank part, a filter layer 10 is arranged in the sand filter tank and above the filter screen 5, and a stirring device and a liquid level meter are also arranged above the sand filter tank;

[0018] The upper sand filter tank part is provided with a clean water inlet 8 connected to the first water inlet pipe 7, the lower sand filter tank part is provided with a sewage inlet 9 connected to the first water inlet pipe 7, the bottom of the lower sand filter tank part is provided with a sewage pipe 11, and the top of the upper sand filter tank part is also provided with a first clean water outlet pipe 12. The other end of the first clean water outlet pipe 12 is connected to the catalytic ozone oxidation system through a flange 13, and the slightly polluted water source enters the sand filter device through the first water inlet pipe and the sewage inlet 9.

[0019] The stirring device comprises a rotating motor 1, a rotating shaft 2 and a stirring rod 3. The driving shaft of the rotating motor 1 is connected to the rotating shaft 2, and the stirring rod 3 is installed on the rotating shaft 2. The stirring device can stir the slightly polluted water source entering the sand filter device.

[0020] The liquid level meter is specifically an ultrasonic liquid level meter 19, which detects the water level of the sand filter tank. When the ultrasonic liquid level meter 19 at the top of the sand filter tank prompts, the sand filter tank should be backwashed, and clean water enters the sand filter tank from the first water inlet pipe 7 and the clean water inlet 8. At this time, the valve connected to the sewage inlet 9 is closed, and the filter layer 10 and the filter screen 5 are cleaned in turn. The filter layer 10 is stirred by a stirring device to make it more fully cleaned, and the cleaned sewage is discharged through the sewage drain pipe 11.

[0021] The first water inlet pipe 7 is also connected to an overflow pipe 4 .

[0022] The catalytic ozone oxidation system includes an oxidation tower, a second water inlet pipe 14, a second clean water pipe 15, an air inlet 16, a microporous aerator 17, and a catalyst packing column 18. One end of the second water inlet pipe 14 is connected to the flange 13 and the other end is connected to the oxidation tower. The bottom of the oxidation tower is provided with an air inlet 16, and the air inlet 16 is connected to the microporous aerator 17 installed inside the oxidation tower. The second clean water pipe 15 is provided on the wall of the oxidation tower and above the microporous aerator 17. The catalyst packing column 18 is provided inside the wall of the oxidation tower and on the second clean water pipe 15.

[0023] Valves 6 are installed on the first water inlet pipe 7 , the sewage pipe 11 , the first clean water outlet pipe 12 and the second clean water pipe 15 .

[0024] Working principle: slightly polluted water enters the sand filter tank through the first water inlet 7 and the sewage inlet 9. At this time, the valve 6 of the clean water inlet 8 is closed, and the sewage passes through the filter 5 and the filter layer 10 in turn. The filter layer 10 is mainly quartz sand, which fully filters the sludge, suspended matter and colloid in the sewage. Then it enters the oxidation tower through the first clean water outlet 12 and the second water inlet 14 for catalytic ozone oxidation reaction. The oxidation tower is aerated through the air inlet 16 at the bottom of the oxidation tower and the microporous aerator 17. The gas passes through the catalyst filler device 18 to fully oxidize the organic pollutants in the water and discharge the clean water through the second clean water outlet pipe on the oxidation tower. When the ultrasonic level gauge 19 at the top of the sand filter tank prompts, the sand filter tank should be backwashed, and clean water enters the sand filter tank from the first water inlet pipe 7 and the clean water inlet 8. At this time, the valve connected to the sewage inlet 9 is closed, and the filter layer 10 and the filter screen 5 are cleaned in turn. The filter layer 10 is stirred by a stirring device to make it more fully cleaned, and the cleaned sewage is discharged through the sewage drain pipe 11.

[0025] The implementation modes of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A sand filtration ozone circulation device, comprising a sand filtration system and a catalytic ozone oxidation system, wherein the sand filtration system comprises a sand filtration tank and a tank leg (20), wherein the sand filtration tank is mounted on the tank leg (20), and wherein: A filter screen (5) is arranged in the sand filter tank to form an upper sand filter tank part and a lower sand filter tank part, a filter layer (10) is arranged in the sand filter tank and above the filter screen (5), and a stirring device and a liquid level meter are also arranged above the sand filter tank; The upper sand filter tank portion is provided with a clean water inlet (8) connected to a first water inlet pipe (7), the lower sand filter tank portion is provided with a sewage inlet (9) connected to the first water inlet pipe (7), a sewage discharge pipe (11) is provided at the bottom of the lower sand filter tank portion, and a first clean water outlet pipe (12) is also provided at the top of the upper sand filter tank portion, and the other end of the first clean water outlet pipe (12) is connected to a catalytic ozone oxidation system via a flange (13).

2. The sand filtration ozone circulation device according to claim 1, characterized in that: The stirring device comprises a rotating motor (1), a rotating shaft (2) and a stirring rod (3); the driving shaft of the rotating motor (1) is connected to the rotating shaft (2), and the stirring rod (3) is installed on the rotating shaft (2).

3. The sand filtration ozone circulation device as claimed in claim 2, characterized in that: The liquid level meter is specifically an ultrasonic liquid level meter (19).

4. The sand filtration ozone circulation device as claimed in claim 2, characterized in that: The first water inlet pipe (7) is also connected to an overflow pipe (4).

5. The sand filtration ozone circulation device as claimed in claim 1, characterized in that: The catalytic ozone oxidation system comprises an oxidation tower, a second water inlet pipe (14), a second clean water pipe (15), an air inlet (16), a microporous aerator (17), and a catalyst packing column (18); one end of the second water inlet pipe (14) is connected to a flange (13) and the other end is connected to the oxidation tower; an air inlet (16) is provided at the bottom of the oxidation tower; the air inlet (16) is connected to a microporous aerator (17) installed inside the oxidation tower; a second clean water pipe (15) is provided on the wall of the oxidation tower and located above the microporous aerator (17); and a catalyst packing column (18) is provided inside the wall of the oxidation tower and located on the second clean water pipe (15).

6. The sand filtration ozone circulation device as claimed in claim 1, characterized in that: Valves (6) are installed on the first water inlet pipe (7), the sewage discharge pipe (11), the first clean water outlet pipe (12) and the second clean water pipe (15).

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