Pollution discharge mechanism of UASB anaerobic reactor
By designing components such as a conical bottom shell, a circular outer shell, and a spiral lifting cylinder in the UASB anaerobic reactor, the problem of fouling accumulation was solved, and effective fouling discharge was achieved, ensuring the high-efficiency operation of the reactor.
Patent Information
- Application Number
- CN202520197478.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-08
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-02-08
AI Technical Summary
The UASB anaerobic reactor generates a large amount of fouling during wastewater treatment, which affects its working efficiency and is difficult to remove effectively with existing technologies.
Design a sludge discharge mechanism for a UASB anaerobic reactor, including a conical bottom shell, a circular outer shell, a spiral lifting cylinder, and inclined guide vanes, through which fouling is collected and discharged to avoid accumulation.
This achieves effective collection and regular discharge of fouling, maintaining the high-efficiency operation of the UASB anaerobic reactor.
Smart Images
Figure CN223950843U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sewage treatment technical field, concretely is a kind of sewage mechanism of UASB anaerobic reactor. BACKGROUND
[0002] UASB anaerobic reactor is an anaerobic biological method for treating sewage, sewage passes through UASB from bottom to top, there is a high-concentration, high-activity sludge bed at the bottom of the reactor, most of the organic pollutants in the sewage are degraded into methane and carbon dioxide by anaerobic fermentation here, wastewater in UASB reactor is introduced into the bottom of the reactor as evenly as possible, the sewage passes through the sludge bed containing granular sludge or flocculent sludge upwards, anaerobic reaction occurs in the process of wastewater and sludge particles contact.
[0003] When UASB anaerobic reactor is used to treat sewage, a large amount of dirt (including flocculent matter, sludge, etc.) is generated inside, which will affect the working efficiency of UASB anaerobic reactor if not removed in time. Therefore, we propose a sewage mechanism of UASB anaerobic reactor. SUMMARY
[0004] In view of the problem that a large amount of dirt is generated when the existing UASB anaerobic reactor is used to treat sewage, the utility model provides a sewage mechanism of UASB anaerobic reactor, which has the advantages that dirt is concentrated in the circular shell, and then discharged through the spiral conveying cylinder, thereby solving the problem proposed in the above background art.
[0005] To achieve the above purpose, the utility model is implemented by the following technical scheme: a sewage mechanism of UASB anaerobic reactor, comprising a conical bottom shell, the conical bottom shell is installed at the bottom of the UASB anaerobic reactor, and a circular shell is arranged below the conical bottom shell; a ring-shaped connecting seat is arranged at the center of the top of the circular shell, the ring-shaped connecting seat is connected to the bottom of the conical bottom shell, and the circular shell is in communication with the conical bottom shell; the lower part of the square-circular shell is connected to a discharge structure.
[0006] Preferably, the connecting parts of the ring-shaped connecting seat at both ends with the conical bottom shell and the circular shell are arc-shaped transitions respectively; a plurality of inclined guide vanes arranged in a ring are arranged on the surface of the ring-shaped connecting seat.
[0007] Preferably, the bottom of the circular shell is a conical structure, and the bottom of the conical structure is connected to a discharge pipe.
[0008] Preferably, the discharge structure is a spiral lifting cylinder, the height of the outlet at the top of the spiral lifting cylinder is higher than the height of the liquid level in the UASB anaerobic reactor, and the inlet at the bottom of the spiral lifting cylinder is connected to the discharge pipe.
[0009] Preferably, the water distributor at the bottom of the UASB anaerobic reactor is located at the center above the conical bottom shell; the top of the conical bottom shell is provided with a support, and the water distributor is installed on the top of the support.
[0010] Preferably, a plurality of water permeable openings are arranged on the spiral blades in the spiral lifting cylinder, and a filter screen is arranged in each water permeable opening.
[0011] Preferably, the two ends of the inclined guide blades respectively extend to the conical bottom shell and the surface of the circular shell, and one end of each inclined guide blade is connected with a baffle.
[0012] Compared with the prior art, when the reactor has precipitates, the precipitates will gather at the annular connecting seat through the conical bottom shell, then flow into the circular shell through the annular connecting seat, and finally the dirt is discharged outwards through the spiral lifting cylinder, so that the UASB anaerobic reactor will not accumulate dirt. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 The structure diagram of the conical bottom shell of the utility model Figure 1 .
[0014] Figure 2 The structure diagram of the conical bottom shell of the utility model Figure 2 .
[0015] Figure 3 The structure diagram of the spiral blade of the utility model.
[0016] Figure 4 The structure diagram of the inclined guide blade of the utility model.
[0017] Figure 5 The structure diagram of the combination of the conical bottom shell and the UASB anaerobic reactor of the utility model.
[0018] In the drawing: 1, conical bottom shell; 2, water distributor; 3, support; 4, spiral lifting cylinder; 5, circular shell; 6, baffle; 7, UASB anaerobic reactor; 8, inclined guide blade; 9, annular connecting seat; 10, discharge pipe; 11, water permeable opening; 12, spiral blade. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0020] Please refer toFigures 1 to 5 The utility model provides a technical scheme: a kind of UASB anaerobic reactor's pollution discharge mechanism, including conical bottom shell 1, conical bottom shell 1 is installed at the bottom of UASB anaerobic reactor 7, as shown in the actual application process, the bottom of UASB anaerobic reactor 7 has multiple support legs, which is arranged on the ground, and the support leg is arranged to let conical bottom shell 1 and ground exist certain distance. Figure 5
[0021] As shown in the figure, conical bottom shell 1 below is equipped with circular shell 5, the top center of circular shell 5 is equipped with annular connecting seat 9, annular connecting seat 9 is connected with the bottom of conical bottom shell 1, and circular shell 5 is communicated with conical bottom shell 1. Figure 5 Specifically, the diameter of annular connecting seat 9 is less than the diameter of circular shell 5, so that the edge of circular shell 5 is located outside annular connecting seat 9, and the connecting place of annular connecting seat 9 two ends and conical bottom shell 1, circular shell 5 respectively uses arc transition.
[0022] Here it needs to be explained that in reality, the bottom of each UASB anaerobic reactor will be provided with water distributor, so that the sewage outside is connected with the water distributor through pipeline, so that the sewage uniformly flows upward in the UASB anaerobic reactor, so that the sewage can fully contact with the microorganism in the reactor;
[0023] Therefore, in the present application, the water distributor 2 at the bottom of the UASB anaerobic reactor 7 is located above the center of the conical bottom shell 1, and the top of the conical bottom shell 1 is provided with a support 3, and the water distributor 2 is installed on the top of the support 3, and the support 3 is in the shape of "ten" or "rice".
[0024] The water distributor 2 is connected with the sewage outside through pipeline, so that the sewage flows upward in the UASB anaerobic reactor 7. Figure 5 As shown in the figure, since there is continuous water flow rising in the middle of the UASB anaerobic reactor 7, and then descending from the two sides of the UASB anaerobic reactor 7, the sewage flowing along the inner wall of the reactor will flow on the surface of the conical bottom shell 1, so as to push the dirt on the conical bottom shell 1 towards the annular connecting seat 9, so that the dirt falls faster into the circular shell 5.
[0025] It needs to be explained that the circular shell 5 is designed to be larger than the annular connecting seat 9, so that the connecting place between the circular shell 5 and the bottom of the conical bottom shell 1 is in the shape of contraction, so that the inside of the circular shell 5 is not disturbed by the flowing sewage.
[0026] Further, the lower part of the square-circular shell 5 is connected with a discharging structure, which is a spiral lifting cylinder 4. Specifically, a discharging pipe 10 is connected at the center of the bottom of the square-circular shell 5, and the discharging pipe 10 is connected with the bottom inlet of the spiral lifting cylinder 4 through flanges. The dirt in the square-circular shell 5 flows into the spiral lifting cylinder 4 through the discharging pipe 10. The spiral lifting cylinder 4 is placed in an inclined manner or vertically (the inclined manner is preferred) Figure 5 In order to avoid leakage of the sewage from the top outlet of the spiral lifting cylinder 4, the top outlet of the spiral lifting cylinder 4 is arranged above the liquid level in the UASB anaerobic reactor 7 during use, so as to avoid leakage of the sewage.
[0027] It should be noted that, since the spiral lifting cylinder 4 is filled with water, the entry of a small amount of air into the top of the spiral lifting cylinder 4 does not affect the whole reaction. Alternatively, a valve can be arranged on the top outlet of the spiral lifting cylinder 4, and the valve is opened during use. The dirt in the spiral lifting cylinder 4 is continuously discharged to occupy the outlet space, so that the outside air cannot enter. Alternatively, the top outlet of the spiral lifting cylinder 4 is arranged in a converging manner, so that the dirt discharged from the spiral lifting cylinder 4 is squeezed out at the outlet. The squeezed-out dirt also blocks the outlet, so as to avoid entry of the air.
[0028] Further, a plurality of inclined guide vanes 8 are arranged in a ring shape on the surface of the annular connecting seat 9. The bottom of the square-circular shell 5 is in a conical structure, and the discharging pipe 10 is arranged at the bottom of the conical structure. As shown in Figure 2 The two ends of each inclined guide vane 8 extend to the surface of the conical bottom shell 1 and the square-circular shell 5, respectively. Each inclined guide vane 8 is connected with a baffle 6 at one end.
[0029] Specifically, during use, the spiral lifting cylinder 4 rotates continuously, so as to continuously discharge the dirt. However, during the discharging process, the descending water flow in the UASB anaerobic reactor 7 moves along the bottom of the conical bottom shell 1 to the annular connecting seat 9, and the water flow contacts the baffle 6 and the inclined guide vane 8 and is forced to change direction. Since the inclined guide vanes 8 are arranged in an inclined manner, a plurality of water flow channels with the same inclination are formed between adjacent two inclined guide vanes 8. The water flow entering the square-circular shell 5 along the inclined guide vanes 8 is inclined to flow into the square-circular shell 5. The simultaneous inclined flow of the multiple water flows tends to rotate the water in the square-circular shell 5. After a long time, the water in the square-circular shell 5 also rotates. The rotating water flow drives the dirt to concentrate at the center of the vortex. Since the weight of the dirt is greater than that of the water, the dirt is accelerated to be discharged from the discharging pipe 10.
[0030] The application also improves the spiral lifting cylinder 4, that is, a plurality of water permeable openings 11 are arranged on the spiral blades 12 in the spiral lifting cylinder 4, and a filter screen is arranged in each water permeable opening 11, so that the spiral blades can be prevented from driving sewage out in rotation, the sewage is allowed to flow out through the water permeable openings 11, and dirt is allowed to remain on the spiral blades.
[0031] Based on the above embodiment, further optimization can be made, that is, a plurality of stabilizing frames (not numbered in the figure) are arranged on the side surface of the spiral lifting cylinder 4, and the stabilizing frames support the spiral lifting cylinder 4.
[0032] In the description of the present application, it should be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance, in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment.
[0033] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A pollution discharge mechanism of a UASB anaerobic reactor, comprising a conical bottom shell (1) installed at the bottom of a UASB anaerobic reactor (7), characterized in that, The bottom of the conical bottom shell (1) is provided with a circular shell (5); The top center of the circular shell (5) is provided with an annular connecting seat (9), which is connected with the bottom of the conical bottom shell (1), and the circular shell (5) and the conical bottom shell (1) are communicated; and The bottom of the square-circular shell (5) is connected with a discharging structure.
2. The blowdown mechanism of the UASB anaerobic reactor according to claim 1, wherein, The connecting positions of the two ends of the annular connecting seat (9) with the conical bottom shell (1) and the circular shell (5) are respectively arc-shaped transitions; A plurality of inclined guide vanes (8) are arranged in an annular arrangement on the surface of the annular connecting seat (9).
3. The blowdown mechanism of the UASB anaerobic reactor according to claim 2, wherein, The bottom of the circular shell (5) is a conical structure, and the bottom of the conical structure is connected with a discharge pipe (10).
4. The blowdown mechanism of the UASB anaerobic reactor according to claim 3, wherein, The discharging structure is a spiral lifting cylinder (4), the height of the top outlet of the spiral lifting cylinder (4) is higher than the height of the liquid level in the UASB anaerobic reactor (7), and the bottom inlet of the spiral lifting cylinder (4) is connected with the discharge pipe (10).
5. The blowdown mechanism of the UASB anaerobic reactor according to claim 4, wherein, The water distributor (2) at the bottom of the UASB anaerobic reactor (7) is located at the center above the conical bottom shell (1); The top of the conical bottom shell (1) is provided with a support (3), and the water distributor (2) is installed on the top of the support (3).
6. The blowdown mechanism of the UASB anaerobic reactor according to claim 4, wherein, A plurality of water permeation openings (11) are arranged on the spiral vane (12) in the spiral lifting cylinder (4), and a filter screen is arranged in each water permeation opening (11).
7. The blowdown mechanism of the UASB anaerobic reactor according to claim 2, wherein, The two ends of the inclined guide vane (8) respectively extend to the surfaces of the conical bottom shell (1) and the circular shell (5), and one end of each inclined guide vane (8) is connected with a baffle (6). The bottom of the conical bottom shell (1) is provided with a circular shell (5);