IC anaerobic reactor

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to an IC (internal circulation) anaerobic reactor which comprises a reactor body, a lower-layer three-phase separator and an upper-layer three-phase separator which are fixedly connected in the reactor body, and the lower-layer three-phase separator and the upper-layer three-phase separator are fixedly connected in the reactor body. The reactor body is divided into a first reaction zone, a second reaction zone and a settling zone through the lower-layer three-phase separator and the upper-layer three-phase separator, a water distributor is fixedly connected to the bottom of the reactor body, a stirring rod for stirring wastewater is mounted at the top of the water distributor, and a rotating assembly for driving the stirring rod to rotate is fixedly connected to the bottom of the reactor body; and the bottom of the reactor body is fixedly connected with a lifting assembly for driving the stirring rod to lift. The IC anaerobic reactor provided by the utility model has the advantages of guaranteeing the water distribution effect, improving the organic matter degradation efficiency and protecting the microbial activity.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to an IC anaerobic reactor. Background Technology

[0002] The IC anaerobic reactor, also known as an internal circulation anaerobic reactor, is a highly efficient anaerobic biological treatment device. Its interior is divided into a first reaction zone, a second reaction zone, and a sedimentation zone by a three-phase separator. It uses anaerobic microorganisms to decompose organic matter in wastewater into biogas, water, and sludge. The IC anaerobic reactor is mainly used to remove organic matter from wastewater and reduce pollutant concentration. At the same time, the biogas produced can be recovered and reused as energy, which has both environmental and economic benefits.

[0003] However, in actual operation, sludge deposition is prone to occur at the top of the water distributor of the IC anaerobic reactor. The existing IC anaerobic reactor lacks an effective sludge cleaning mechanism. As the operating time increases, the sludge continues to accumulate, which not only hinders the uniform distribution of wastewater and reduces the distribution efficiency, but also affects the full contact between anaerobic microorganisms and wastewater in the first reaction zone, resulting in a decrease in the degradation efficiency of organic matter, and thus affecting the treatment effect and operational stability of the entire reactor.

[0004] Therefore, it is necessary to provide a new IC anaerobic reactor to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an IC anaerobic reactor.

[0006] The IC anaerobic reactor provided by this utility model includes: a reactor body, a lower three-phase separator fixedly connected inside the reactor body, an upper three-phase separator fixedly connected inside the reactor body, the reactor body being divided into a first reaction zone, a second reaction zone, and a sedimentation zone by the lower and upper three-phase separators, a water distributor fixedly connected to the bottom of the reactor body, a stirring rod for stirring wastewater installed on the top of the water distributor, a rotating assembly for driving the stirring rod to rotate fixedly connected to the bottom of the reactor body, and a lifting assembly for driving the stirring rod to rise and fall fixedly connected to the bottom of the reactor body.

[0007] Preferably, the rotating assembly includes: an inlet pipe, a rotating block, an L-shaped nozzle, a rotating rod, and an external spline. The inlet pipe is fixedly connected to one end of the reactor body, and the rotating block is rotatably connected to the other end of the inlet pipe. The L-shaped nozzles are fixedly connected at equal intervals on the outer wall of the rotating block, and the internal splines are opened at equal intervals on the inner wall of the rotating block. The rotating rod is installed inside the reactor body, and the external splines are fixedly connected at equal intervals at the bottom of the rotating rod. The internal splines and the external splines are engaged.

[0008] Preferably, the lifting assembly includes: a drive motor, a turntable, a connecting rod, and a lifting rod. The drive motor is fixedly connected inside the reactor body, the output end of the drive motor is fixedly connected to the turntable, the side of the turntable away from the drive motor is slidably connected to the connecting rod, one end of the connecting rod is fixedly connected to the lifting rod, and the top of the lifting rod is rotatably connected to the turntable.

[0009] Preferably, the reactor body is fixedly connected to a gas chamber, which is connected to the lower three-phase separator through a lower gas outlet pipe, and to the upper three-phase separator through an upper gas outlet pipe. The gas chamber is also connected to the rotating rod through a return pipe.

[0010] Preferably, the outer wall of the rotating rod is provided with water outlets at equal intervals.

[0011] Preferably, the height of the lower and upper air outlet pipes inside the air chamber is higher than the height of the return pipe.

[0012] Preferably, the axis of the drive motor output shaft is not on the same axis as the axis of the turntable.

[0013] Preferably, the stirring rod is designed to be inclined, and the inclination angle of the stirring rod is the same as the slope of the water distributor.

[0014] Compared with related technologies, the IC anaerobic reactor provided by this utility model has the following beneficial effects:

[0015] Ensure effective water distribution:

[0016] This device, with its specially designed stirring rod, can effectively scrape up the sludge deposited on the top of the distributor, solving the problem of sludge accumulation in the distributor of traditional IC anaerobic reactors. This ensures that wastewater is evenly distributed through the distributor, greatly improving the distribution efficiency and creating favorable conditions for anaerobic microorganisms to fully contact the wastewater.

[0017] Improve the efficiency of organic matter degradation:

[0018] Effective sludge removal combined with uniform water distribution allows anaerobic microorganisms in the first reaction zone to come into more full contact with the wastewater, fully leveraging their decomposition of organic matter, significantly improving organic matter degradation efficiency, ensuring the reactor's removal of organic matter from wastewater, reducing pollutant concentration, and enhancing the overall treatment capacity and effect of the reactor.

[0019] Protecting microbial activity:

[0020] The stirring rod rotates at a low and stable speed to avoid damaging the structure of anaerobic microorganisms due to excessive stirring intensity, maintain the activity and stability of microorganisms, ensure that the anaerobic reaction can continue to proceed efficiently, ensure the long-term stable operation of the reactor, and reduce the problem of fluctuations in treatment effect caused by the influence of microbial activity. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the IC anaerobic reactor provided by this utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the reactor body shown;

[0023] Figure 3 for Figure 2 The diagram shows the structure of the rotating rod.

[0024] Figure 4 for Figure 3 The diagram shows the structure of the turntable.

[0025] Figure 5 for Figure 2 The diagram shows a cross-sectional view of the air chamber.

[0026] Labels in the diagram: 1. Reactor body; 2. Lower three-phase separator; 3. Upper three-phase separator; 4. First reaction zone; 5. Second reaction zone; 6. Sedimentation zone; 7. Water distributor; 8. Stirring rod; 21. Inlet pipe; 22. Rotary block; 23. L-shaped nozzle; 24. Rotating rod; 25. External spline; 26. Internal spline; 31. Drive motor; 32. Turntable; 33. Connecting rod; 34. Lifting rod; 41. Gas chamber; 42. Lower gas outlet pipe; 43. Upper gas outlet pipe; 44. Return pipe; 51. Water outlet. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0028] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0029] Please see Figures 1 to 5 An IC anaerobic reactor is disclosed, comprising: a reactor body 1, a lower three-phase separator 2 and an upper three-phase separator 3 fixedly connected inside the reactor body 1, the reactor body 1 being divided into a first reaction zone 4, a second reaction zone 5 and a sedimentation zone 6 by the lower three-phase separator 2 and the upper three-phase separator 3, a water distributor 7 fixedly connected to the bottom of the reactor body 1, a stirring rod 8 for stirring wastewater installed on the top of the water distributor 7, a rotating assembly for driving the stirring rod 8 to rotate fixedly connected to the bottom of the reactor body 1, and a lifting assembly for driving the stirring rod 8 to rise and fall fixedly connected to the bottom of the reactor body 1, the stirring rod 8 being inclined, the inclination angle of the stirring rod 8 being the same as the slope of the water distributor 7.

[0030] It should be noted that the inclined stirring rod 8 can scrape off the sludge on the top of the water distributor 7, improving the water distribution effect.

[0031] Please see Figures 1 to 5 The rotating assembly includes: an inlet pipe 21, a rotating block 22, an L-shaped nozzle 23, a rotating rod 24, and an external spline 25. The inlet pipe 21 is fixedly connected to one end of the reactor body 1, and the rotating block 22 is rotatably connected to the other end of the inlet pipe 21. L-shaped nozzles 23 are fixedly connected at equal intervals to the outer wall of the rotating block 22, and internal splines 26 are equidistantly opened on the inner wall of the rotating block 22. The rotating rod 24 is installed inside the reactor body 1, and external splines 25 are fixedly connected at equal intervals to the bottom of the rotating rod 24. 26 is fitted with the external spline 25. The reactor body 1 is fixedly connected to the gas chamber 41. The gas chamber 41 is connected to the lower three-phase separator 2 through the lower gas outlet pipe 42. The gas chamber 41 is connected to the upper three-phase separator 3 through the upper gas outlet pipe 43. The gas chamber 41 is connected to the rotating rod 24 through the return pipe 44. The rotating rod 24 has water outlets 51 equidistantly opened on the outer wall. The height of the lower gas outlet pipe 42 and the upper gas outlet pipe 43 inside the gas chamber 41 is higher than the height of the return pipe 44.

[0032] It should be noted that since the gas chamber 41 is connected to the lower three-phase separator 2 and the upper three-phase separator 3 through the lower gas outlet pipe 42 and the upper gas outlet pipe 43 respectively, biogas can enter the gas chamber 41 and be discharged to the collection area through the gas chamber 41.

[0033] Please see Figures 1 to 4 The lifting assembly includes a drive motor 31, a turntable 32, a connecting rod 33, and a lifting rod 34. The drive motor 31 is fixedly connected inside the reactor body 1. The turntable 32 is fixedly connected to the output end of the drive motor 31. The connecting rod 33 is slidably connected to the side of the turntable 32 away from the drive motor 31. The lifting rod 34 is fixedly connected to one end of the connecting rod 33. The top of the lifting rod 34 is rotatably connected to the turntable 24. The axis of the output shaft of the drive motor 31 and the axis of the turntable 32 are not on the same axis.

[0034] It should be noted that when the output end of the drive motor 31 drives the turntable 32 to rotate, the turntable 32 rotates around the axis of the output shaft of the drive motor 31, and the turntable 32 drives the connecting rod 33 to move vertically up and down.

[0035] The working principle of the IC anaerobic reactor provided by this utility model is as follows:

[0036] Wastewater treatment process:

[0037] Wastewater is evenly introduced into the first reaction zone 4 through the water distributor 7 at the bottom of the reactor. This zone is rich in anaerobic microorganisms. Under anaerobic conditions, the microorganisms gradually decompose the complex organic matter in the wastewater, converting it into biogas, water and a small amount of residual sludge. The pre-treated wastewater and residual sludge flow into the second reaction zone 5 through the lower three-phase separator 2 to continue the deep degradation of organic matter. After being treated in the second reaction zone 5, the wastewater reaches the upper three-phase separator 3 for further separation. The treated clear water enters the sedimentation zone 6 and is finally discharged from the reactor.

[0038] Rotation and lifting of stirring rod 8:

[0039] Stirring principle: Water from the inlet pipe 21 is sprayed out at high speed from the L-shaped nozzle 23. The reaction force generated drives the rotating block 22 to rotate. The inner spline 26 on the inner wall of the rotating block 22 cooperates with the outer spline 25 at the bottom of the rotating rod 24 to transmit the rotational motion of the rotating block 22 to the rotating rod 24, thereby driving the stirring rod 8 to rotate.

[0040] Lifting principle: The drive motor 31 drives the turntable 32 to rotate. Since the axis of the output shaft of the drive motor 31 and the axis of the turntable 32 are not on the same axis, when the turntable 32 rotates, the connecting rod 33 drives the lifting rod 34 to make vertical lifting and lowering movements together. The lifting rod 34 is rotatably connected to the rotating rod 24, so that the rotating rod 24 and the stirring rod 8 can be lifted and rotated at the same time. This movement mode can effectively scrape up the sludge deposited on the top of the water distributor 7.

[0041] Gas-liquid separation and circulation:

[0042] Gas-liquid separation: The biogas generated in the first reaction zone 4 rises and passes through the lower three-phase separator 2 to achieve preliminary separation of gas, liquid and solid. Since the gas chamber 41 is connected to the lower three-phase separator 2 and the upper three-phase separator 3 through the lower gas outlet pipe 42 and the upper gas outlet pipe 43 respectively, the biogas can enter the gas chamber 41 and be discharged to the collection area through the gas chamber 41.

[0043] Liquid circulation: The lower gas outlet pipe 42 and the upper gas outlet pipe 43 inside the gas chamber 41 are at a higher height than the return pipe 44, ensuring that the gas is discharged upward. When the biogas rises, it will carry a part of the liquid into the gas chamber 41. The liquid can flow back to the rotating rod 24 through the return pipe 44. The returned water is discharged from the water outlet 51 that is opened at equal intervals on the outer wall of the rotating rod 24 to the inside of the water distributor 7. After being distributed by the water distributor 7, it enters the first reaction zone 4 for re-reaction.

[0044] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An IC anaerobic reactor, characterized in that, include: The reactor body (1) has a lower three-phase separator (2) fixedly connected inside the reactor body (1) and an upper three-phase separator (3) fixedly connected inside the reactor body (1). The reactor body (1) is divided into a first reaction zone (4), a second reaction zone (5) and a sedimentation zone (6) by the lower three-phase separator (2) and the upper three-phase separator (3). A water distributor (7) is fixedly connected to the bottom of the reactor body (1). A stirring rod (8) is installed on the top of the water distributor (7) for stirring wastewater. A rotating assembly is fixedly connected to the bottom of the reactor body (1) for driving the stirring rod (8) to rotate; The bottom of the reactor body (1) is fixedly connected to a lifting assembly for driving the stirring rod (8) to rise and fall.

2. The IC anaerobic reactor according to claim 1, characterized in that, The rotating assembly includes: an inlet pipe (21), a rotating block (22), an L-shaped nozzle (23), a rotating rod (24), and an external spline (25). The inlet pipe (21) is fixedly connected to one end of the reactor body (1), and the rotating block (22) is rotatably connected to the other end of the inlet pipe (21). The L-shaped nozzle (23) is fixedly connected at equal intervals on the outer wall of the rotating block (22), and the internal spline (26) is opened at equal intervals on the inner wall of the rotating block (22). The rotating rod (24) is installed inside the reactor body (1), and the external spline (25) is fixedly connected at equal intervals at the bottom of the rotating rod (24). The internal spline (26) and the external spline (25) are engaged.

3. The IC anaerobic reactor according to claim 2, characterized in that, The lifting assembly includes a drive motor (31), a turntable (32), a connecting rod (33), and a lifting rod (34). The drive motor (31) is fixedly connected inside the reactor body (1). The turntable (32) is fixedly connected to the output end of the drive motor (31). The connecting rod (33) is slidably connected to the side of the turntable (32) away from the drive motor (31). The lifting rod (34) is fixedly connected to one end of the connecting rod (33). The top of the lifting rod (34) is rotatably connected to the turntable (24).

4. The IC anaerobic reactor according to claim 2, characterized in that, The reactor body (1) is fixedly connected to a gas chamber (41). The gas chamber (41) is connected to the lower three-phase separator (2) through the lower gas outlet pipe (42). The gas chamber (41) is connected to the upper three-phase separator (3) through the upper gas outlet pipe (43). The gas chamber (41) is connected to the rotating rod (24) through the return pipe (44).

5. The IC anaerobic reactor according to claim 4, characterized in that, The outer wall of the rotating rod (24) is provided with water outlets (51) at equal intervals.

6. The IC anaerobic reactor according to claim 4, characterized in that, The lower air outlet pipe (42) and the upper air outlet pipe (43) inside the air chamber (41) are at a higher height than the return pipe (44).

7. The IC anaerobic reactor according to claim 3, characterized in that, The axis of the output shaft of the drive motor (31) is not on the same axis as the axis of the turntable (32).

8. The IC anaerobic reactor according to claim 1, characterized in that, The stirring rod (8) is designed to be inclined, and the inclination angle of the stirring rod (8) is the same as the slope of the water distributor (7).

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