An activated sludge aerobic digestion apparatus
By introducing aeration and oxygen enrichment devices into the aerobic digestion equipment for activated sludge, the problems of slow oxidation rate and short service life have been solved, achieving efficient purification and long service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI SUOGUAN CONSTR CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-06-09
AI Technical Summary
Existing activated sludge aerobic digestion equipment relies on the dissolved oxygen oxidation process of wastewater, which is slow and results in low purification efficiency. Furthermore, the mechanical stirring method leads to a short service life.
An aeration device and an oxygen enrichment device are used for oxygen enrichment aeration to increase the oxidation reaction rate, and a homogenization device is used to eliminate the need for mechanical stirring, thus achieving the stirring effect.
It increases the oxidation reaction rate, improves purification efficiency, and extends the service life of the equipment.
Smart Images
Figure CN224337365U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of aerobic digestion equipment for activated sludge, and in particular to an aerobic digestion equipment for activated sludge. Background Technology
[0002] Activated sludge aerobic digestion equipment is a commonly used wastewater treatment equipment in the wastewater treatment industry. It uses the oxidation ability of aerobic bacteria in an oxygen-rich environment to harmlessly treat pollutants in wastewater.
[0003] Existing activated sludge aerobic digestion equipment, such as the Chinese utility model patent CN207031074U (authorization announcement number: A Utility Model Patent for an Activated Sludge Aerobic Digestion Equipment), represents a class of prior art whose main structure includes: a main body of equipment, a waste discharge mechanism, a stirring mechanism, and a feeding mechanism. The main body of equipment holds and treats the wastewater, the waste discharge mechanism discharges the slurry generated during the treatment process, the stirring mechanism stirs the wastewater and activated sludge during treatment, and the feeding mechanism conveys the wastewater into the main body of equipment.
[0004] However, existing technologies and equipment still have the following problems when in use: existing machines rely on dissolved oxygen in the wastewater for the oxidation process, which is slow and results in poor purification efficiency. In addition, existing machines rely on mechanical stirring to agitate the wastewater and activated sludge, which leads to a short service life. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides an aerobic digestion device for activated sludge by setting up an aeration device and an oxygen enrichment device to enrich the oxygen content of wastewater, thereby increasing the oxidation reaction rate and improving the purification efficiency of the machine. In addition, the oxygen enrichment aeration also agitates the wastewater and activated sludge, eliminating the need for mechanical stirring of sewage and activated sludge and extending the service life of the machine.
[0006] This utility model discloses an aerobic digestion device for activated sludge, comprising a machine body; and further comprising an aeration device, an oxygen enrichment device, a discharge device, and a homogenization device. The aeration device, discharge device, and homogenization device are all installed on the machine body, and the oxygen enrichment device is installed on the aeration device. The machine body performs aerobic digestion treatment of activated sludge on wastewater, the aeration device and the oxygen enrichment device work together to perform oxygen-enriched aeration on the wastewater, the discharge device discharges excess sludge from the machine body, and the homogenization device homogenizes the wastewater.
[0007] Preferably, the machine body includes a support frame, an oxidation cylinder, and an exhaust pipe. A mounting platform is provided in the middle of the support frame, the oxidation cylinder is mounted on the support frame, the side end of the oxidation cylinder is provided with a liquid inlet, a liquid outlet, and two mounting holes, the bottom end of the oxidation cylinder is provided with a discharge port, the top end of the oxidation cylinder is provided with an exhaust port, and the exhaust pipe is fixedly installed at the top of the exhaust port of the oxidation cylinder. The oxidation cylinder holds wastewater and activated sludge. The wastewater undergoes aerobic digestion of the activated sludge inside the oxidation cylinder. Excess sludge produced by the reaction accumulates at the discharge port of the oxidation cylinder, the exhaust gas is discharged through the exhaust pipe, and the remaining clean water is discharged through the liquid outlet of the oxidation cylinder.
[0008] Preferably, the oxidation cylinder is further provided with multiple flow-slowing plates arranged spirally and evenly at intervals; the flow-slowing plates slow down the wastewater flow rate, prolong the wastewater reaction time, and at the same time promote the aggregation and sedimentation of activated sludge.
[0009] Preferably, the aeration device includes an aeration pipe, a second support bracket, an air pump, and a first motor. The aeration pipe is fixedly installed in two mounting holes of the oxidation cylinder. Multiple micro-hole nozzles are evenly spaced at the bottom of the aeration pipe. The second support bracket is fixedly installed on the top of the mounting platform of the first support bracket. The air pump is fixedly installed on the top of the second support bracket and is connected to the aeration pipe. The first motor is installed on the side of the air pump. The first motor provides power to drive the air pump to pump gas into the aeration pipe. The aeration pipe aerates the wastewater through multiple micro-hole nozzles.
[0010] Preferably, the oxygen enrichment device includes a support three, an oxygen filter membrane, a connecting pipe, and an air drying tank. The support three is fixedly installed on the top of the mounting platform of the support one. The oxygen filter membrane is installed on the top of the support three, and one end of the oxygen filter membrane is connected to the air pump. The connecting pipe is installed on the other end of the oxygen filter membrane. The air drying tank is detachably installed on the connecting pipe. The air drying tank dries the air, and the oxygen filter membrane enriches the oxygen in the air.
[0011] Preferably, the discharge device includes a discharge cylinder, an auger, a reducer, and a motor. The discharge cylinder is fixedly installed at the bottom of the discharge port of the oxidation cylinder. The auger is rotatably installed inside the bottom of the discharge cylinder. The reducer is fixedly installed at the bottom of the discharge cylinder and rotatably connected between the discharge cylinder and the auger. The motor is fixedly installed at the bottom of the reducer and provides power to the auger through the reducer. The motor provides power to drive the auger to rotate and discharge excess slurry from inside the oxidation cylinder.
[0012] Preferably, the homogenization device includes two supports (four), a homogenizing cylinder, a feed pipe, a rotating shaft, a scraper, a reducer (two), and a motor (three). Both supports (four) are mounted on the ground, and the homogenizing cylinder is mounted on the two supports (four). The discharge ports of the homogenizing cylinder and the oxidation cylinder are connected. The feed pipe is mounted at the top of the homogenizing cylinder. The rotating shaft is rotatably mounted inside the homogenizing cylinder. Multiple sets of inclined stirring columns are evenly spaced on the side of the rotating shaft. The scraper is fixedly mounted on the rotating shaft, and the scraper is in close contact with the inner wall of the homogenizing cylinder. The reducer (two) is fixedly mounted at the top of the homogenizing cylinder, and the reducer (two) is rotatably connected between the homogenizing cylinder and the rotating shaft. The motor (three) is fixedly mounted at the top of the reducer (two), and the motor (three) provides power to the rotating shaft through the reducer (two). The motor (three) provides power to drive the rotating shaft to rotate the scraper to perform stirring and homogenization treatment on the wastewater. The scraper prevents solid substances in the wastewater from adhering to the inner wall of the homogenizing cylinder.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: by enriching the wastewater with oxygen, the oxygen content of the wastewater is greatly increased, which can improve the oxidation reaction rate and the machine purification efficiency is high; and while enriching the oxygen, it also agitates the wastewater and activated sludge, which can eliminate the need to use mechanical stirring to agitate the sewage and activated sludge, and the machine has a longer service life. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;
[0015] Figure 2 This is an isometric structural diagram of the fuselage;
[0016] Figure 3 This is a schematic diagram of the isometric cross-sectional structure of the oxidation cylinder;
[0017] Figure 4 This is a schematic diagram of the isometric cross-sectional structure of the aeration device;
[0018] Figure 5 This is an isometric structural diagram of an oxygen enrichment device;
[0019] Figure 6 This is a schematic diagram of the isometric cross-sectional structure of the discharge device;
[0020] Figure 7 This is a schematic diagram of the isometric cross-sectional structure of the homogenization device.
[0021] The attached diagram is labeled as follows: 01, machine body; 11, support frame one; 12, oxidation cylinder; 13, exhaust pipe; 02, aeration device; 21, aeration pipe; 22, support frame two; 23, air pump; 24, motor one; 03, oxygen enrichment device; 31, support frame three; 32, oxygen filter membrane; 33, connecting pipe; 34, air drying tank; 04, discharge device; 41, discharge cylinder; 42, auger; 43, reducer one; 44, motor two; 05, homogenization device; 51, support frame four; 52, homogenization cylinder; 53, feed pipe; 54, rotating shaft; 55, scraper; 56, reducer two; 57, motor three. Detailed Implementation
[0022] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.
[0023] Example 1
[0024] like Figure 1 As shown, the system includes a machine body 01; it also includes an aeration device 02, an oxygen enrichment device 03, a discharge device 04, and a homogenization device 05. The aeration device 02, the discharge device 04, and the homogenization device 05 are all installed on the machine body 01, and the oxygen enrichment device 03 is installed on the aeration device 02. The machine body 01 performs aerobic digestion treatment of wastewater with activated sludge. The aeration device 02 and the oxygen enrichment device 03 work together to perform oxygen enrichment aeration on the wastewater. The discharge device 04 discharges excess sludge from the machine body 01, and the homogenization device 05 performs homogenization treatment on the wastewater.
[0025] like Figure 2 As shown, the machine body 01 includes a support frame 11, an oxidation cylinder 12, and an exhaust pipe 13. A mounting platform is provided in the middle of the support frame 11. The oxidation cylinder 12 is mounted on the support frame 11. The side end of the oxidation cylinder 12 is provided with a liquid inlet, a liquid outlet, and two mounting holes. The bottom end of the oxidation cylinder 12 is provided with a discharge outlet. The top end of the oxidation cylinder 12 is provided with an exhaust outlet. The exhaust pipe 13 is fixedly installed on the top end of the exhaust outlet of the oxidation cylinder 12.
[0026] like Figure 3 As shown, the oxidation cylinder 12 is also provided with multiple flow-damping plates arranged spirally and evenly at intervals inside;
[0027] like Figure 4As shown, the aeration device 02 includes an aeration pipe 21, a second support 22, an air pump 23, and a first motor 24. The aeration pipe 21 is fixedly installed in two mounting holes of the oxidation cylinder 12. Multiple micro-hole nozzles are evenly spaced at the bottom end of the aeration pipe 21. The second support 22 is fixedly installed on the top of the mounting platform of the first support 11. The air pump 23 is fixedly installed on the top of the second support 22, and the air pump 23 and the aeration pipe 21 are connected. The first motor 24 is installed on the side of the air pump 23.
[0028] like Figure 5 As shown, the oxygen enrichment device 03 includes a support 31, an oxygen filter membrane 32, a connecting pipe 33, and an air drying tank 34. The support 31 is fixedly installed on the top of the mounting platform of the support 11. The oxygen filter membrane 32 is installed on the top of the support 31, and one end of the oxygen filter membrane 32 is connected to the air pump 23. The connecting pipe 33 is installed on the other end of the oxygen filter membrane 32. The air drying tank 34 is detachably installed on the connecting pipe 33.
[0029] like Figure 6 As shown, the discharge device 04 includes a discharge cylinder 41, an auger 42, a reducer 43, and a motor 44. The discharge cylinder 41 is fixedly installed at the bottom of the discharge port of the oxidation cylinder 12. The auger 42 is rotatably installed inside the bottom of the discharge cylinder 41. The reducer 43 is fixedly installed at the bottom of the discharge cylinder 41 and is rotatably connected between the discharge cylinder 41 and the auger 42. The motor 44 is fixedly installed at the bottom of the reducer 43 and provides power to the auger 42 through the reducer 43.
[0030] First, wastewater is introduced into the oxidation cylinder 12. Then, motor 24 is turned on, providing power to drive air pump 23 to pump gas into the aeration pipe 21. Air dryer 34 dries the air, and oxygen filter membrane 32 enriches the oxygen in the air. Aeration pipe 21 aerates the wastewater through multiple micro-perforated nozzles. The wastewater undergoes aerobic digestion of activated sludge inside the oxidation cylinder 12. Excess sludge produced by the reaction accumulates at the discharge port of the oxidation cylinder 12. Waste gas is discharged through exhaust pipe 13, and the remaining clean water is discharged through the liquid discharge port of the oxidation cylinder 12. The slow flow plate of the oxidation cylinder 12 slows down the flow rate of the wastewater, prolongs the wastewater reaction time, and promotes the agglomeration and sedimentation of activated sludge. When there is a lot of sludge inside the oxidation cylinder 12, motor 44 is turned on, providing power to drive auger 42 to rotate and discharge the excess sludge inside the oxidation cylinder 12.
[0031] Example 2
[0032] In addition to Example 1, it also includes:
[0033] like Figure 7As shown, the homogenization device 05 includes two supports 51, a homogenizing cylinder 52, a feed pipe 53, a rotating shaft 54, a scraper 55, a reducer 56, and a motor 57. The two supports 51 are installed on the ground. The homogenizing cylinder 52 is installed on the two supports 51 and is connected to the discharge port of the oxidation cylinder 12. The feed pipe 53 is installed at the top of the homogenizing cylinder 52. The rotating shaft 54 is rotatably installed inside the homogenizing cylinder 52. Multiple sets of inclined stirring columns are evenly spaced on the side of the rotating shaft 54. The scraper 55 is fixedly installed on the rotating shaft 54 and is in close contact with the inner wall of the homogenizing cylinder 52. The reducer 56 is fixedly installed at the top of the homogenizing cylinder 52 and is rotatably connected between the homogenizing cylinder 52 and the rotating shaft 54. The motor 57 is fixedly installed at the top of the reducer 56 and provides power to the rotating shaft 54 through the reducer 56.
[0034] First, wastewater is introduced into the homogenizing cylinder 52. Then, motor 3 57 is turned on, providing power to drive the rotating shaft 54, which in turn drives the scraper 55 to rotate, thus agitating and homogenizing the wastewater. The scraper 55 prevents solid matter in the wastewater from adhering to the inner wall of the homogenizing cylinder 52. The homogenized wastewater flows into the oxidation cylinder 12 under gravity. Then, motor 1 24 is turned on, providing power to drive the air pump 23 to pump gas into the aeration pipe 21. The air dryer 34 dries the air, and the oxygen filter membrane 32 enriches the oxygen in the air. The aeration pipe 21... Wastewater is aerated through multiple micro-perforated nozzles. The wastewater undergoes aerobic digestion of activated sludge inside the oxidation cylinder 12. Excess sludge produced by the reaction accumulates at the discharge port of the oxidation cylinder 12. Waste gas is discharged through the exhaust pipe 13, and the remaining clean water is discharged through the liquid outlet of the oxidation cylinder 12. The flow plate of the oxidation cylinder 12 slows down the flow rate of wastewater, prolongs the wastewater reaction time, and promotes the agglomeration and sedimentation of activated sludge. When there is a lot of sludge inside the oxidation cylinder 12, the second motor 44 is turned on. The second motor 44 provides power to drive the auger 42 to rotate and discharge the excess sludge inside the oxidation cylinder 12.
[0035] like Figures 1 to 7As shown, this utility model discloses an aerobic digestion device for activated sludge. During operation, wastewater is first introduced into the homogenizing cylinder 52. Then, motor 3 57 is turned on, providing power to drive the rotating shaft 54, which in turn rotates the scraper 55 to agitate and homogenize the wastewater. The scraper 55 prevents solid matter in the wastewater from adhering to the inner wall of the homogenizing cylinder 52. The homogenized wastewater flows into the oxidation cylinder 12 under gravity. Next, motor 1 24 is turned on, providing power to drive the air pump 23, which pumps gas into the aeration pipe 21. The air dryer 34 dries the air, and the oxygen filter membrane 32 dries the air. Oxygen is enriched in the oxidation cylinder 12. The aeration pipe 21 aerates the wastewater through multiple micro-hole nozzles. The wastewater undergoes aerobic digestion of activated sludge inside the oxidation cylinder 12. Excess sludge produced by the reaction accumulates at the discharge port of the oxidation cylinder 12. Waste gas is discharged through the exhaust pipe 13, and the remaining clean water is discharged through the liquid discharge port of the oxidation cylinder 12. The slow flow plate of the oxidation cylinder 12 slows down the flow rate of the wastewater, prolongs the wastewater reaction time, and promotes the agglomeration and sedimentation of activated sludge. When there is a lot of sludge inside the oxidation cylinder 12, the second motor 44 is turned on. The second motor 44 provides power to drive the auger 42 to rotate and discharge the excess sludge inside the oxidation cylinder 12.
[0036] The air pump 23, motor 1 24, oxygen filter membrane 32, air dryer 34, motor 2 44, and motor 3 57 of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0037] The main functions achieved by this utility model are as follows: by setting up an aeration device 02 and an oxygen enrichment device 03, the wastewater is aerated with oxygen, which greatly increases the oxygen content of the wastewater, improves the oxidation reaction rate, and enhances the purification efficiency of the machine. At the same time as the oxygen enrichment aeration, the wastewater and activated sludge are also stirred, which eliminates the need for mechanical stirring of the sewage and activated sludge, thus extending the service life of the machine. This solves the problems of existing machines that rely on the dissolved oxygen in the sewage for the oxidation process, which is slow and results in poor purification efficiency, and existing machines that rely on mechanical stirring of the sewage and activated sludge, resulting in a short service life.
[0038] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. An aerobic digestion device for activated sludge, comprising a body (01); characterized in that, It also includes an aeration device (02), an oxygen enrichment device (03), a discharge device (04), and a homogenization device (05). The aeration device (02), the discharge device (04), and the homogenization device (05) are all installed on the machine body (01), and the oxygen enrichment device (03) is installed on the aeration device (02). The machine body (01) performs aerobic digestion treatment of wastewater with activated sludge. The aeration device (02) and the oxygen enrichment device (03) work together to perform oxygen enrichment aeration on the wastewater. The discharge device (04) discharges excess sludge in the machine body (01), and the homogenization device (05) performs homogenization treatment on the wastewater.
2. The activated sludge aerobic digestion equipment as described in claim 1, characterized in that, The machine body (01) includes a support (11), an oxidation cylinder (12) and an exhaust pipe (13). The support (11) has a mounting platform in the middle, the oxidation cylinder (12) is mounted on the support (11), the side end of the oxidation cylinder (12) has an inlet, an outlet and two mounting holes, the bottom end of the oxidation cylinder (12) has a discharge port, the top end of the oxidation cylinder (12) has an exhaust port, and the exhaust pipe (13) is fixedly installed at the top end of the exhaust port of the oxidation cylinder (12).
3. The activated sludge aerobic digestion equipment as described in claim 2, characterized in that, The oxidation cylinder (12) also has multiple flow-retarding plates arranged spirally and evenly at intervals inside.
4. The activated sludge aerobic digestion equipment as described in claim 2, characterized in that, The aeration device (02) includes an aeration pipe (21), a second support (22), an air pump (23), and a first motor (24). The aeration pipe (21) is fixedly installed in two mounting holes of the oxidation cylinder (12). Multiple micro-hole nozzles are evenly spaced at the bottom of the aeration pipe (21). The second support (22) is fixedly installed on the top of the mounting platform of the first support (11). The air pump (23) is fixedly installed on the top of the second support (22), and the air pump (23) and the aeration pipe (21) are connected. The first motor (24) is installed on the side of the air pump (23).
5. The activated sludge aerobic digestion equipment as described in claim 4, characterized in that, The oxygen enrichment device (03) includes a support three (31), an oxygen filter membrane (32), a connecting pipe (33), and an air drying tank (34). The support three (31) is fixedly installed on the top of the mounting platform of the support one (11). The oxygen filter membrane (32) is installed on the top of the support three (31), and one end of the oxygen filter membrane (32) is connected to the air pump (23). The connecting pipe (33) is installed on the other end of the oxygen filter membrane (32). The air drying tank (34) is detachably installed on the connecting pipe (33).
6. The activated sludge aerobic digestion equipment as described in claim 2, characterized in that, The discharge device (04) includes a discharge cylinder (41), an auger (42), a reducer (43) and a motor (44). The discharge cylinder (41) is fixedly installed at the bottom of the discharge port of the oxidation cylinder (12). The auger (42) is rotatably installed at the bottom of the discharge cylinder (41). The reducer (43) is fixedly installed at the bottom of the discharge cylinder (41) and is rotatably connected between the discharge cylinder (41) and the auger (42). The motor (44) is fixedly installed at the bottom of the reducer (43) and provides power to the auger (42) through the reducer (43).
7. The activated sludge aerobic digestion equipment as described in claim 2, characterized in that, The homogenization device (05) includes two supports (51), a homogenizing cylinder (52), a feed pipe (53), a rotating shaft (54), a scraper (55), a reducer (56), and a motor (57). The two supports (51) are mounted on the ground, and the homogenizing cylinder (52) is mounted on the two supports (51). The discharge ports of the homogenizing cylinder (52) and the oxidation cylinder (12) are connected. The feed pipe (53) is mounted at the top of the homogenizing cylinder (52), and the rotating shaft (54) is rotatably mounted inside the homogenizing cylinder (52). Multiple sets of inclined stirring columns are evenly spaced on the side end of the shaft (54). The scraper (55) is fixedly installed on the rotating shaft (54), and the scraper (55) and the inner wall of the homogenizing cylinder (52) are kept in close contact. The second reducer (56) is fixedly installed at the top of the homogenizing cylinder (52), and the second reducer (56) is rotatably connected between the homogenizing cylinder (52) and the rotating shaft (54). The third motor (57) is fixedly installed at the top of the second reducer (56), and the third motor (57) provides power to the rotating shaft (54) through the second reducer (56).