High-efficiency anaerobic reactor for breeding wastewater

Abstract

The utility model discloses an efficient anaerobic reactor for aquaculture wastewater, and relates to the technical field of aquaculture wastewater treatment. The anaerobic reactor comprises an anaerobic reactor body, a rotational flow water distribution system, a gas-liquid separator, a driving ring, a main cleaning plate and an auxiliary cleaning strip, and the rotational flow water distribution system for rolling aquaculture wastewater is arranged in the anaerobic reactor body. The cleaning discs and the scrapers clean isolation filter screens at the bottom end of the interior of the anaerobic reactor body and the upper end of the blow-off pipeline, and in the rotating process of the main cleaning plate, the transmission gear and the auxiliary gear ring are in engaged transmission, so that the multiple cleaning discs can rotate while revolution of the driving ring is utilized, and the cleaning effect is improved; the one-way nozzles on the inner sides of the plurality of auxiliary rings are used for spraying the slime stripping agent to help the sludge to loosen, so that compared with the existing mode that workers need to enter the anaerobic reactor body to clean the tank, the method is more convenient, and the labor cost is saved.

Description

Technical Field

[0001] The utility model belongs to the field of aquaculture wastewater treatment, and specifically relates to a high-efficiency anaerobic reactor for aquaculture wastewater. Background Art

[0002] Livestock and poultry breeding wastewater mainly comes from livestock and poultry manure, feed residues and barn flushing water. It is a "three high" wastewater with high organic matter concentration, high nitrogen and phosphorus content and high number of harmful microorganisms. Its organic components are mainly sugars, proteins, and lipids, which are easily biodegradable and have many usable components. At present, anaerobic treatment technology mainly follows the four-group theory of anaerobic digestion: hydrolysis stage, fermentation stage, hydrogen and acetic acid production stage, and methanogenesis stage. Through these four stages, the organic matter in the wastewater is decomposed and biogas is produced. Generally, anaerobic reactors are required for treatment, which are mainly divided into upflow anaerobic sludge bed reactors, anaerobic internal circulation reactors and upflow anaerobic sludge bed filters. The common characteristics of these reactors are high biomass per unit volume, high organic load, small footprint, low power consumption, and high organic matter purification efficiency, which are very suitable for treating this type of livestock and poultry breeding wastewater;

[0003] At present, after using anaerobic reactors for livestock and poultry wastewater for a period of time, there are generally phenomena such as reduced biogas production and sludge deposition at the bottom of the reactor, which will lead to lower efficiency of producing biogas in the anaerobic reactor. The main reason is that due to the large volume of the reactor, the mixed mass transfer of organic matter and sludge gradually decays, the sludge layer descends, the effective residence time is reduced, the degradation of organic matter is difficult, the sludge is passivated and deposited, and the sludge discharge pipeline is blocked. In view of this, the present utility model is specially proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a high-efficiency anaerobic reactor for aquaculture wastewater.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] A high-efficiency anaerobic reactor for aquaculture wastewater comprises an anaerobic reactor body, a cyclone water distribution system, a gas-liquid separator, a driving ring, a main cleaning plate and an auxiliary cleaning strip, wherein the interior of the anaerobic reactor body is provided with a cyclone water distribution system for tumbling aquaculture wastewater, the interior of the anaerobic reactor body is also provided with a three-phase reactor, the top of the anaerobic reactor body is provided with a gas-liquid separator, the bottom of the anaerobic reactor body is provided with a driving shaft through a sealed bearing, the lower end of the driving shaft penetrates to the bottom of the anaerobic reactor body and is fixedly connected to a driven gear, the upper end of the driving shaft is externally fixed with a driving ring, the outer annular array of the driving ring has a plurality of main cleaning plates for cleaning the sludge deposited at the bottom end of the anaerobic reactor body, the outer side of the driving ring is also provided with an auxiliary cleaning strip, and the auxiliary cleaning strip and the main cleaning plate are arranged in an interlaced manner;

[0007] The lower end of the main cleaning plate is provided with a plurality of rotating cleaning disks, and the lower end of the auxiliary cleaning strip is fixed with a scraper by screws;

[0008] A multifunctional ring is also fixed to the inner bottom end of the anaerobic reactor body, an auxiliary gear ring is fixed in the middle of the multifunctional ring, a plurality of one-way nozzles for spraying slime stripping agents are installed at the lower end of the inner side wall of the multifunctional ring, an organic box is fixed to the bottom of the anaerobic reactor through an L-shaped plate, a storage box is also fixed to the bottom of the anaerobic reactor, a sewage pump for conveying aquaculture sewage is fixed to the side of the anaerobic reactor, a sewage pipe is connected to the bottom of the anaerobic reactor, and an isolation filter is provided at the upper end cover of the sewage pipe.

[0009] Optionally, a reduction motor is fixed inside the chassis, and the output shaft of the reduction motor passes through the upper end of the chassis and is fixedly connected to the driving gear, and the side wall of the driving gear is meshedly connected to the driven gear.

[0010] Optionally, a conveying chamber connected to a plurality of one-way nozzles is provided inside the wall of the multifunctional ring, and one side of the multifunctional ring passes through the side wall of the anaerobic reactor body through a conduit and extends to the interior of the storage box to be connected to a feed pump, the negative pressure end of the feed pump passes through the partition through a pipeline and is located in a liquid storage chamber for storing the slime stripping agent, and the front end of the liquid storage chamber is connected to a liquid replenishing hopper through a pipeline, and a sealing plug is installed at the upper end of the liquid replenishing hopper.

[0011] Optionally, a driving cavity for installing multiple transmission gears is opened inside each main cleaning plate, and the multiple transmission gears are rotatably connected to the driving cavity through shafts and sealed bearings, and the multiple shafts pass through the lower end of the main cleaning plate and are installed on the cleaning disk.

[0012] Optionally, every two adjacent transmission gears are meshed with each other, and the outer wall of the outermost transmission gear passes through the side of the driving cavity and is meshed and connected with the inner wall of the auxiliary gear ring.

[0013] Optionally, a plurality of support rods are arrayed at the bottom of each cleaning plate, a silicone contact sleeve is fixedly sleeved on the outside of each support rod, and the bottom of the silicone contact sleeve contacts the inner bottom end of the anaerobic reactor.

[0014] Optionally, a guide ring for docking with the guide seat is fixed to the bottom of the driving ring, and a plurality of load-bearing balls are provided at the bottom of the guide ring.

[0015] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0016] The utility model drives the main cleaning plate and the auxiliary cleaning strip to rotate through the driving ring, so that the cleaning plate and the scraper are used to clean the bottom end of the inside of the anaerobic reactor body and the isolation filter screen at the upper end of the sewage discharge pipeline. In the process of the rotation of the main cleaning plate, the transmission gear and the auxiliary gear ring are meshed and transmitted, so that the multiple cleaning plates can rotate while the driving ring revolves, thereby improving the cleaning effect. In addition, in order to better clean the attached deposited sludge by the cleaning plate and the scraper, a unidirectional nozzle can be used to spray a sludge stripping agent to help loosen the sludge. Compared with the existing method that requires workers to enter the anaerobic reactor body to clean the tank, it is more convenient and saves labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0018] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0019] Figure 2 It is a schematic cross-sectional view of some parts of the anaerobic reactor body in the utility model;

[0020] Figure 3 It is a bottom view schematic diagram of the structure of the combined parts of the drive ring, the guide ring, the main cleaning plate, the auxiliary cleaning strip and the scraper in the utility model;

[0021] Figure 4 This is a schematic diagram of the structure appearance of the combined parts of the drive ring, the cleaning disc and the main cleaning plate in the utility model;

[0022] Figure 5 for Figure 2 A part structure enlarged schematic diagram;

[0023] Figure 6 for Figure 2 The enlarged schematic diagram of the structure of the part B in FIG.

[0024] Figure 7 for Figure 2 The enlarged schematic diagram of the C part structure;

[0025] Figure 8 for Figure 2 An enlarged schematic diagram of the D part structure.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1. Anaerobic reactor body; 2. Cyclone water distribution system; 3. Gas-liquid separator; 4. Drive shaft; 5. Driven gear; 6. Drive ring; 7. Main cleaning plate; 8. Auxiliary cleaning strip; 9. Cleaning plate; 10. Scraper; 11. Multi-function ring; 12. Auxiliary gear ring; 13. One-way nozzle; 14. Chassis; 15. Storage box; 16. Sewage pump; 17. Drain pipe; 18. Isolation filter; 19. Reducer motor; 20. Drive gear; 21. Conduit; 22. Feed pump; 23. Liquid replenishment hopper; 24. Sealing plug; 25. Transmission gear; 26. Shaft; 27. Support rod; 28. Silicone contact sleeve; 29. ​​Guide seat; 30. Guide ring; 31. Load-bearing ball.

[0028] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0029] The utility model is now described in further detail with reference to the accompanying drawings.

[0030] See also Figures 1 to 7 The utility model provides a technical solution: a high-efficiency anaerobic reactor for aquaculture wastewater, comprising an anaerobic reactor body 1, a cyclone water distribution system 2, a gas-liquid separator 3, a driving ring 6, a main cleaning plate 7 and an auxiliary cleaning strip 8. The cyclone water distribution system 2 for tumbling aquaculture wastewater is arranged inside the anaerobic reactor body 1, a three-phase reactor is also arranged inside the anaerobic reactor body 1, a gas-liquid separator 3 is arranged on the top of the anaerobic reactor body 1, a driving shaft 4 is installed at the bottom of the anaerobic reactor body 1 through a sealed bearing, the lower end of the driving shaft 4 penetrates to the bottom of the anaerobic reactor body 1 and is fixedly connected to a driven gear 5, a driving ring 6 is fixed to the outer part of the upper end of the driving shaft 4, a plurality of main cleaning plates 7 for cleaning the sludge deposited at the bottom end of the anaerobic reactor body 1 are arranged in an outer annular array on the driving ring 6, and auxiliary cleaning strips 8 are arranged in an array outside the driving ring 6, and the auxiliary cleaning strips 8 and the main cleaning plates 7 are arranged in a staggered manner;

[0031] A plurality of rotating cleaning discs 9 are provided at the lower end of the main cleaning plate 7, and a scraper 10 is fixedly mounted at the lower end of the auxiliary cleaning strip 8 by screws;

[0032] A multifunctional ring 11 is also fixed to the inner bottom end of the anaerobic reactor body 1, an auxiliary gear ring 12 is fixed to the middle of the multifunctional ring 11, a plurality of one-way nozzles 13 for spraying slime stripping agents are installed at the lower end of the inner side wall of the multifunctional ring 11, an organic box 14 is fixed to the bottom of the anaerobic reactor through an L-shaped plate, a storage box 15 is also fixed to the bottom of the anaerobic reactor, a sewage pump 16 for conveying aquaculture sewage is fixed to the side of the anaerobic reactor, a sewage pipe 17 is connected to the bottom of the anaerobic reactor, and an isolation filter 18 is provided at the upper end cover of the sewage pipe 17. Considering that at present, after the anaerobic reactor for livestock and poultry wastewater has been used for a period of time, there are generally phenomena such as reduced biogas production and sludge deposition at the bottom of the reactor, which will lead to a lower efficiency of producing biogas in the anaerobic reactor. The main reason is that due to the large volume of the reactor, organic matter and sludge are mixed. The mass transfer gradually decays, the sludge layer drops, the effective residence time is reduced, the degradation of organic matter is difficult, the sludge is passivated and deposited, and the sludge discharge pipeline is blocked. The utility model drives the main cleaning plate 7 and the auxiliary cleaning strip 8 to rotate through the driving ring 6, so that the cleaning disc 9 and the scraper 10 are used to clean the bottom end of the inside of the anaerobic reactor body 1 and the isolation filter 18 at the upper end of the sewage pipe 17, and during the rotation of the main cleaning plate 7, the transmission gear 25 and the auxiliary gear ring 12 are meshed and transmitted, so that the multiple cleaning discs 9 can rotate while using the driving ring 6 to revolve, thereby improving the cleaning effect, and in order to better clean the attached deposited sludge by the cleaning disc 9 and the scraper 10, the unidirectional nozzle 13 can be used to spray the sludge stripping agent to help loosen the sludge, which is more convenient than the existing method that requires workers to enter the anaerobic reactor body 1 to clean the tank, saving labor costs.

[0033] Among them, a reduction motor 19 is fixed inside the chassis 14, and the output shaft of the reduction motor 19 passes through the upper end of the chassis 14 and is fixedly connected to the driving gear 20. The side wall of the driving gear 20 is meshed and connected with the driven gear 5. The reduction motor 19 is arranged to cooperate with the driving gear 20 to play a transmission role for the driven gear 5. When the driven gear 5 rotates, the driving shaft 4 will drive the main cleaning plate 7 and the auxiliary cleaning strip 8 on the driving ring 6 to rotate, so that the cleaning disk 9 and the scraper 10 are used to clean the deposited sludge on the bottom end of the inner part of the anaerobic reactor body 1 and the surface of the isolation filter 18. The sludge will be dispersed by the rotating cleaning disk 9 and discharged through the sewage pipe 17.

[0034] Among them, a conveying cavity connected to a plurality of one-way nozzles 13 is provided inside the wall of the multifunctional ring 11, and one side of the multifunctional ring 11 passes through the side wall of the anaerobic reactor body 1 through a conduit 21 and extends to the inside of the storage box 15 to communicate with the feed pump 22. The negative pressure end of the feed pump 22 passes through the partition through a pipeline and is located in the liquid storage cavity for storing the slime stripping agent, and the front end of the liquid storage cavity is connected to a liquid replenishing hopper 23 through a pipeline, and a sealing plug 24 is installed at the upper end of the liquid replenishing hopper 23. By setting the feed pump 22, the slime stripping agent in the liquid storage cavity is transported to the one-way nozzle 13, and the slime stripping agent can loosen the deposited sludge deposited on the bottom end of the inner part of the anaerobic reactor body 1 and on the isolation filter 18, thereby facilitating cleaning by the cleaning disc 9 and the scraper 10.

[0035] Among them, a driving cavity for installing multiple transmission gears 25 is opened inside each main cleaning plate 7, and the multiple transmission gears 25 are rotatably connected to the driving cavity through the shaft body 26 and the sealed bearing, and the multiple shaft bodies 26 all penetrate to the lower end of the main cleaning plate 7 and are installed with the cleaning disk 9. By arranging an auxiliary gear ring 12 to cooperate with the multiple transmission gears 25, the cleaning disk 9 will rotate through gear transmission during the rotation of the main cleaning plate 7, thereby improving the cleaning effect of the cleaning disk 9 on the deposited sludge. After the deposited sludge deposited at the bottom end of the anaerobic reactor body 1 and the surface of the isolation filter 18 is cleaned, the effective retention of organic matter and mud mixed mass transfer in the sewage is increased, thereby improving the efficiency of biogas production.

[0036] Among them, every two adjacent transmission gears 25 are meshed with each other, and the outer wall of the outermost transmission gear 25 passes through the side of the driving cavity and is meshed with the inner wall of the auxiliary gear ring 12. By setting up multiple transmission gears 25 to be meshed, when the outermost transmission gear 25 is transmitted, multiple cleaning disks 9 will be rotated through transmission.

[0037] Among them, a plurality of support rods 27 are arrayed at the bottom of each cleaning disk 9, and a silicone contact sleeve 28 is fixedly sleeved on the outside of each support rod 27, and the bottom of the silicone contact sleeve 28 contacts the inner bottom end of the anaerobic reactor. The silicone contact sleeve 28 is provided to wrap the support rods 27, thereby preventing the bottom of the plurality of support rods 27 from directly contacting the bottom of the anaerobic generator when the cleaning disk 9 rotates, thereby preventing damage to the wound surface. The silicone contact sleeve 28 effectively avoids this problem.

[0038] Among them, a guide ring 30 for docking with the guide seat 29 is fixed at the bottom of the driving ring 6, and a plurality of load-bearing balls 31 are provided at the bottom of the guide ring 30. By providing the load-bearing balls 31, the weight on the driving shaft 4 is reduced without affecting the lightness of the rotation of the driving ring 6.

[0039] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. A high-efficiency anaerobic reactor for aquaculture wastewater, comprising an anaerobic reactor body (1), a cyclone water distribution system (2), a gas-liquid separator (3), a drive ring (6), a main cleaning plate (7) and an auxiliary cleaning strip (8), characterized in that: The anaerobic reactor body (1) is provided with a cyclone water distribution system (2) for tumbling aquaculture wastewater inside, a three-phase reactor is also provided inside the anaerobic reactor body (1), a gas-liquid separator (3) is provided on the top of the anaerobic reactor body (1), a driving shaft (4) is installed at the bottom of the anaerobic reactor body (1) through a sealed bearing, the lower end of the driving shaft (4) penetrates to the bottom of the anaerobic reactor body (1) and is fixedly connected to a driven gear (5), a driving ring (6) is fixed to the outside of the upper end of the driving shaft (4), a plurality of main cleaning plates (7) for cleaning sludge deposited at the bottom end of the anaerobic reactor body (1) are arranged in an annular array outside the driving ring (6), and auxiliary cleaning strips (8) are arranged in an array outside the driving ring (6), and the auxiliary cleaning strips (8) and the main cleaning plates (7) are arranged in a staggered manner; The lower end of the main cleaning plate (7) is provided with a plurality of rotating cleaning disks (9), and the lower end of the auxiliary cleaning strip (8) is fixed with a scraper (10) by means of screws; A multifunctional ring (11) is also fixed to the inner bottom end of the anaerobic reactor body (1), an auxiliary tooth ring (12) is fixed in the middle of the multifunctional ring (11), a plurality of one-way nozzles (13) for spraying slime stripping agents are installed at the lower end of the inner side wall of the multifunctional ring (11), a box (14) is fixed to the bottom of the anaerobic reactor through an L-shaped plate, a storage box (15) is also fixed to the bottom of the anaerobic reactor, a sewage pump (16) for conveying aquaculture sewage is fixed to the side of the anaerobic reactor, and a sewage pipe (17) is connected to the bottom of the anaerobic reactor, and an isolation filter (18) is provided at the upper end of the sewage pipe (17).

2. The aquaculture wastewater high-efficiency anaerobic reactor according to claim 1, characterized in that: A reduction motor (19) is fixed inside the chassis (14), and the output shaft of the reduction motor (19) passes through the upper end of the chassis (14) and is fixedly connected to the driving gear (20), and the side wall of the driving gear (20) is meshedly connected to the driven gear (5).

3. The aquaculture wastewater high-efficiency anaerobic reactor according to claim 1, characterized in that: A delivery chamber connected to a plurality of one-way nozzles (13) is provided inside the wall of the multifunctional ring (11), and one side of the multifunctional ring (11) passes through the side wall of the anaerobic reactor body (1) through a conduit (21) and extends to the inside of the storage box (15) to communicate with a delivery pump (22). The negative pressure end of the delivery pump (22) passes through the partition through a pipeline and is located in a liquid storage chamber for storing slime stripping agent, and the front end of the liquid storage chamber is connected to a liquid replenishing hopper (23) through a pipeline, and a sealing plug (24) is installed at the upper end of the liquid replenishing hopper (23).

4. The aquaculture wastewater high-efficiency anaerobic reactor according to claim 1, characterized in that: Each main cleaning plate (7) has a driving cavity for mounting a plurality of transmission gears (25) therein. The plurality of transmission gears (25) are rotatably connected to the driving cavity via shafts (26) in cooperation with sealed bearings. The plurality of shafts (26) penetrate the lower end of the main cleaning plate (7) and are mounted on the cleaning disk (9).

5. The aquaculture wastewater high-efficiency anaerobic reactor according to claim 4, characterized in that: Every two adjacent transmission gears (25) are meshed with each other, and the outer wall of the outermost transmission gear (25) penetrates the side of the driving cavity and is meshed with the inner wall of the auxiliary gear ring (12).

6. The aquaculture wastewater high-efficiency anaerobic reactor according to claim 1, characterized in that: A plurality of support rods (27) are arranged in an array at the bottom of each cleaning plate (9), a silicone contact sleeve (28) is fixedly sleeved on the outside of each support rod (27), and the bottom of the silicone contact sleeve (28) contacts the inner bottom end of the anaerobic reactor.

7. The aquaculture wastewater high-efficiency anaerobic reactor according to claim 1, characterized in that: A guide ring (30) for docking with the guide seat (29) is fixed at the bottom of the driving ring (6), and a plurality of load-bearing balls (31) are arranged at the bottom of the guide ring (30).

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