Aerobic and anaerobic biological filter denitrification device

Abstract

The utility model discloses an aerobic and anaerobic biological filter denitrification device which comprises a filter main body, an air pump is fixedly arranged on the outer side wall of the filter main body, a first branch pipe is fixedly arranged at the output end of the air pump, a second branch pipe is fixedly arranged at the bottom end of the first branch pipe, and a plurality of third branch pipes are fixedly arranged on the second branch pipe. A plurality of aeration pipes are fixedly arranged on the third branch pipes, the top ends of the aeration pipes penetrate through the bottom wall of the filter body and extend into the filter body, aeration holes are formed in the upper ends of the aeration pipes, a filter plate is arranged on the inner side of the filter body, and a lifting assembly connected with the filter plate is arranged at the top of the filter body. The air pump is used for blowing air, the air is input into the second branch pipe through the first branch pipe, input into the plurality of third branch pipes through the second branch pipe, input into the plurality of aeration pipes through the plurality of third branch pipes respectively and then aerated into the filter main body through the plurality of aeration holes, and the plurality of aeration pipes and the plurality of aeration holes are arranged, so that the aeration is relatively uniform.

Description

Technical Field

[0001] The utility model belongs to the technical field of biological filter tanks, and particularly relates to an aerobic and anaerobic biological filter tank denitrification device. Background Art

[0002] Excessive discharge of nitrogenous substances in wastewater can easily cause eutrophication of natural water bodies, excessive growth of algae, mass death of aquatic organisms such as fish, black and smelly rivers, and other serious water pollution problems. Nitrogenous wastewater such as domestic sewage and landfill leachate must be strictly denitrified before being discharged into natural water bodies. Aerobic anaerobic biofilter biological denitrification devices can remove nitrogen from wastewater. The operation is simple and convenient, and the removal of nitrogen is more efficient.

[0003] The existing aerobic anaerobic biofilter biological denitrification device is not perfect in structure and function, and there is still room for improvement. First, when aerating the waste liquid, the amount of gas sprayed from each group of outlet pipes is different, so the aeration of the waste liquid is not uniform. Secondly, the mixing of gas and liquid during the aeration process is slow, and the aeration speed is not fast enough. Utility Model Content

[0004] In view of the above problems that when aerating the waste liquid, the amount of gas sprayed from each group of outlet pipes is different, so the aeration of the waste liquid is not uniform enough, and secondly, the mixing of gas and liquid during the aeration process is slow, and the aeration speed is not fast enough, the utility model provides an aerobic anaerobic biofilter denitrification device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an aerobic anaerobic biofilter denitrification device, including a filter body, an air pump is fixedly arranged on the outer side wall of the filter body, a first branch pipe is fixedly arranged on the output end of the air pump, a second branch pipe is fixedly arranged on the bottom end of the first branch pipe, a plurality of third branch pipes are fixedly arranged on the second branch pipe, a plurality of aeration pipes are fixedly arranged on the plurality of third branch pipes, the top ends of the plurality of aeration pipes all penetrate the bottom wall of the filter body and extend into the filter body, aeration holes are opened on the upper ends of the plurality of aeration pipes, a filter plate is arranged on the inner side of the filter body, and a lifting component connected to the filter plate is arranged on the top of the filter body.

[0006] Preferably, a plurality of aeration holes are provided, and the plurality of aeration holes are evenly distributed along the axial direction of the aeration pipe.

[0007] Preferably, the lifting assembly includes an L-shaped plate and an electric push rod, and two of the L-shaped plate and the electric push rod are provided. The two L-shaped plates are fixedly arranged on the top of the filter tank body, and the two electric push rods are fixedly arranged on the L-shaped plate, and the output ends of the two electric push rods are fixed to the filter plate.

[0008] Preferably, a motor is fixedly mounted on the outer wall of the filter tank body, two rotating shafts are rotatably mounted inside the filter tank body, stirring blades are fixedly mounted on the two rotating shafts, the output end of the motor is fixed to one rotating shaft, and a transmission assembly is arranged between the two rotating shafts.

[0009] Preferably, the transmission assembly includes a transmission wheel and a transmission belt, and two transmission wheels are provided. The two transmission wheels are respectively fixed on two rotating shafts, and the two transmission wheels are connected by a transmission belt.

[0010] Preferably, a drain pipe is provided on the outer side wall of the filter tank body, and a valve is installed in the drain pipe.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The air is pumped to inflate the gas, and the gas is input into the second branch pipe through the first branch pipe, and then into multiple third branches through the second branch pipe, and then respectively input into multiple aeration pipes through the multiple third branches, and then aerated into the filter tank body through multiple aeration holes. By setting multiple aeration pipes and multiple aeration holes, the aeration is more uniform.

[0013] 2. The motor drives the rotating shaft to rotate, and the transmission assembly drives the two rotating shafts to rotate. The two rotating shafts respectively drive the stirring blades to rotate, so that the filtrate can be mixed quickly and evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of another perspective of the utility model as a whole;

[0016] Figure 3 It is a structural schematic diagram of a cross-section of the filter tank main body of the utility model.

[0017] In the figure: 1. filter tank body; 2. air pump; 3. first branch pipe; 4. second branch pipe; 5. third branch pipe; 6. aeration pipe; 7. aeration hole; 8. filter plate; 9. L-shaped plate; 10. electric push rod; 11. motor; 12. rotating shaft; 13. stirring blade; 14. transmission wheel; 15. transmission belt; 16. drain pipe. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figure 1-3A denitrification device for an aerobic anaerobic biofilter comprises a filter body 1, an air pump 2 is fixedly arranged on the outer wall of the filter body 1, a first branch pipe 3 is fixedly arranged on the output end of the air pump 2, a second branch pipe 4 is fixedly arranged on the bottom end of the first branch pipe 3, a plurality of third branch pipes 5 are fixedly arranged on the second branch pipe 4, a plurality of aeration pipes 6 are fixedly arranged on the plurality of third branch pipes 5, the top ends of the plurality of aeration pipes 6 all penetrate the bottom wall of the filter body 1 and extend into the filter body 1, aeration holes 7 are opened on the upper ends of the plurality of aeration pipes 6, a plurality of aeration holes 7 are arranged, and the plurality of aeration holes 7 are evenly distributed along the axial direction of the aeration pipe 6.

[0020] By adopting the above scheme, air is blown through the air pump 2, and the gas is input into the second branch pipe 4 through the first branch pipe 3, and then into multiple third branch pipes 5 through the second branch pipe 4, and then into multiple aeration pipes 6 through the multiple third branch pipes 5, and then aerated into the filter tank body 1 through the multiple aeration holes 7. By providing multiple aeration pipes 6 and multiple aeration holes 7, the aeration is made more uniform.

[0021] Furthermore, a filter plate 8 is arranged on the inner side of the filter tank body 1, and a lifting assembly connected to the filter plate 8 is arranged on the top of the filter tank body 1, and the lifting assembly includes an L-shaped plate 9 and an electric push rod 10. Two L-shaped plates 9 and two electric push rods 10 are arranged, and the two L-shaped plates 9 are fixedly arranged on the top of the filter tank body 1, and the two electric push rods 10 are fixedly arranged on the L-shaped plate 9, and the output ends of the two electric push rods 10 are fixed to the filter plate 8.

[0022] By adopting the above scheme, the mixed sludge of anaerobic ammonia oxidation sludge, denitrification sludge and nitrification sludge in the filter tank body 1 is filtered through the filter plate 8, and the filtrate flows into the filter tank body 1 through the filter plate 8. When the filter plate 8 needs to be cleaned, the filter plate 8 is driven to move upward by two electric push rods 10, so that the filter plate 8 is moved out of the filter tank body 1, thereby facilitating the cleaning of the filter plate 8.

[0023] Furthermore, a motor 11 is fixedly provided on the outer wall of the filter tank body 1, and two rotating shafts 12 are rotatably provided inside the filter tank body 1. Stirring blades 13 are fixedly provided on the two rotating shafts 12. The output end of the motor 11 is fixed to one rotating shaft 12, and a transmission assembly is provided between the two rotating shafts 12. The transmission assembly includes a transmission wheel 14 and a transmission belt 15. Two transmission wheels 14 are provided, and the two transmission wheels 14 are respectively fixed on the two rotating shafts 12, and the two transmission wheels 14 are connected by a transmission belt 15.

[0024] By adopting the above solution, the motor 11 drives the rotating shaft 12 to rotate, the transmission assembly drives the two rotating shafts 12 to rotate, and the two rotating shafts 12 respectively drive the stirring blades 13 to rotate, so that the filtrate can be mixed quickly and evenly.

[0025] Finally, a drain pipe 16 is provided on the outer side wall of the filter tank body 1 , and a valve is installed in the drain pipe 16 .

[0026] The operating principle of the utility model is described as follows: the mixed sludge of anaerobic ammonia oxidation sludge, denitrification sludge and nitrification sludge in the filter tank body 1 is filtered through the filter plate 8, and the filtrate flows into the filter tank body 1 through the filter plate 8, and is aerated by the air pump 2. The gas is input into the second branch pipe 4 through the first branch pipe 3, and then input into multiple third branch pipes 5 through the second branch pipe 4. The gas is respectively input into multiple aeration pipes 6 through the multiple third branch pipes 5, and then aerated into the filter tank body 1 through multiple aeration holes 7. By providing multiple aeration pipes 6 and multiple aeration holes 7, the aeration is more uniform. The motor 11 drives the rotating shaft 12 to rotate, and the two rotating shafts 12 are driven to rotate by the transmission assembly. The two rotating shafts 12 respectively drive the stirring blades 13 to rotate, so that the filtrate can be quickly and evenly mixed.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An aerobic anaerobic biofilter denitrification device, comprising a filter body (1), It is characterized in that An air pump (2) is fixedly arranged on the outer wall of the filter tank body (1); a first branch pipe (3) is fixedly arranged on the output end of the air pump (2); a second branch pipe (4) is fixedly arranged on the bottom end of the first branch pipe (3); a plurality of third branch pipes (5) are fixedly arranged on the second branch pipe (4); a plurality of aeration pipes (6) are fixedly arranged on each of the plurality of third branch pipes (5); the top ends of the plurality of aeration pipes (6) all penetrate the bottom wall of the filter tank body (1) and extend into the filter tank body (1); aeration holes (7) are opened on the upper ends of the plurality of aeration pipes (6); a filter plate (8) is arranged on the inner side of the filter tank body (1); and a lifting component connected to the filter plate (8) is arranged on the top of the filter tank body (1).

2. The aerobic anaerobic biofilter denitrification device according to claim 1, It is characterized in that A plurality of aeration holes (7) are provided, and the plurality of aeration holes (7) are evenly distributed along the axial direction of the aeration pipe (6).

3. The aerobic anaerobic biofilter denitrification device according to claim 1, It is characterized in that The lifting assembly comprises an L-shaped plate (9) and an electric push rod (10), wherein two L-shaped plates (9) and two electric push rods (10) are provided, the two L-shaped plates (9) are fixedly arranged on the top of the filter tank body (1), the two electric push rods (10) are fixedly arranged on the L-shaped plate (9), and the output ends of the two electric push rods (10) are fixed to the filter plate (8).

4. The aerobic anaerobic biofilter denitrification device according to claim 1, It is characterized in that A motor (11) is fixedly arranged on the outer wall of the filter tank body (1), two rotating shafts (12) are rotatably arranged inside the filter tank body (1), stirring blades (13) are fixedly arranged on the two rotating shafts (12), an output end of the motor (11) is fixed to one rotating shaft (12), and a transmission assembly is arranged between the two rotating shafts (12).

5. The aerobic anaerobic biofilter denitrification device according to claim 4, It is characterized in that The transmission assembly comprises a transmission wheel (14) and a transmission belt (15), two transmission wheels (14) are provided, the two transmission wheels (14) are respectively fixedly arranged on two rotating shafts (12), and the two transmission wheels (14) are connected via a transmission belt (15).

6. The aerobic anaerobic biofilter denitrification device according to claim 1, It is characterized in that A drainage pipe (16) is provided on the outer side wall of the filter tank body (1), and a valve is installed in the drainage pipe (16).

Images