UASB anaerobic reactor

Abstract

The utility model discloses a UASB (Upflow Anaerobic Sludge Blanket) anaerobic reactor, which relates to the technical field of anaerobic generators, and comprises an anaerobic generator body containing a box body, the bottom of the box body is a semi-cylindrical cavity, a central shaft is coaxially and rotatably connected in the semi-cylindrical cavity, a plurality of scrapers are fixedly connected on the central shaft, the scrapers are attached to the inner wall of the semi-cylindrical cavity, and the inner wall of the semi-cylindrical cavity is fixedly connected with the box body. A plurality of stirring shafts are connected between the scraping plate and the central shaft, and overflow holes are formed in the stirring shafts and the scraping plate. According to the utility model, the inner bottom surface of the box body in the prior art is designed into the semi-cylindrical cavity; meanwhile, a stirring structure in the prior art is changed and replaced by a stirring structure comprising a scraper blade and a stirring shaft, and the problem that the inner bottom surface of the box body is difficult to clean is avoided through contact between the scraper blade and the semi-cylindrical cavity; and through rotation of the scraping plate and the stirring shaft, the sludge in the semi-cylindrical cavity fully flows, so that the sludge is more fully contacted with the liquid.

Description

Technical Field

[0001] The utility model relates to the technical field of anaerobic generators, in particular to a UASB anaerobic reactor. Background Art

[0002] UASB (Upflow Anaerobic Sludge Blanket) anaerobic reactor is a technology commonly used in wastewater treatment. It is a highly efficient bioreactor that uses microorganisms under anaerobic conditions to degrade organic pollutants and produce methane gas (biogas). UASB anaerobic reactor has been widely used in wastewater treatment. It can efficiently remove organic matter and reduce the pollutant load in wastewater. At the same time, the biogas produced can also be used as energy to provide heat and electricity.

[0003] Existing UASB anaerobic reactors, such as the "Improved UASB Anaerobic Reactor" with application number "202223029447.0", improve the structure of the anaerobic generator, add anti-caking parts, use a circulating pump to pump pressurized liquid into the circulating pipe, and transport the liquid to the hydraulic agitator through the circulating pipe, driving the hydraulic agitator to rotate at the bottom of the box, thereby effectively avoiding sludge compaction.

[0004] However, the above technical solution will have the following two problems during implementation: 1. The sludge on the bottom of the box is not easy to clean; 2. The agitator is fixed in position and can only target the sludge in the center of the box, but cannot cover the entire sludge in the box, resulting in the liquid transported into the box not being able to fully contact the sludge in the box. To this end, we provide a UASB anaerobic reactor. Utility Model Content

[0005] The technical problem solved by the utility model is that in the prior art, the sludge on the bottom of the box body is difficult to clean and the liquid transported into the box body cannot fully contact with the sludge.

[0006] The utility model can be implemented through the following technical scheme: a UASB anaerobic reactor, comprising an anaerobic generator body including a box body, the bottom of the box body is a semi-cylindrical cavity, a central shaft is coaxially rotatably connected in the semi-cylindrical cavity, a plurality of scrapers are fixedly connected to the central shaft, the scrapers are fitted with the inner wall of the semi-cylindrical cavity, a plurality of stirring shafts are connected between the scrapers and the central shaft, and overflow holes are provided on the stirring shafts and the scrapers.

[0007] A further technical improvement of the utility model is that the scraper is arranged in a U shape, and the scraper is hollow inside, and the overflow hole on the scraper is connected to the hollow chamber inside the scraper.

[0008] A further technical improvement of the utility model is that a flow guide cavity is provided at one end of the central shaft, and the end of the scraper is communicated with the flow guide cavity.

[0009] A further technical improvement of the utility model is that: the stirring shaft is hollow, the stirring shaft is connected to the flow guide cavity, and the overflow hole on the stirring shaft is connected to the hollow chamber of the stirring shaft.

[0010] A further technical improvement of the utility model is that an inner positioning seat is fixedly connected to the center of the inner wall of one side of the semi-cylindrical cavity, the inner wall of the diversion cavity is rotatably sleeved on the inner positioning seat, and the inner positioning seat is connected to a water conveying component for conveying liquid, so as to convey liquid into the diversion cavity.

[0011] A further technical improvement of the utility model is that a water pipe is coaxially fixed to the inner positioning seat, and the water pipe extends into the diversion cavity.

[0012] A further technical improvement of the utility model is that the overflow holes on the scraper are arranged at the front and rear sides of the horizontal end of the scraper.

[0013] A further technical improvement of the utility model is that the horizontal end section of the scraper is arranged in a fan shape.

[0014] A further technical improvement of the utility model is that: the outer side wall of the box body is fixedly connected with a motor, and one end of the central axis is fixed to the output end of the motor.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The device designs the bottom surface of the box body in the prior art into a semi-cylindrical cavity; at the same time, the stirring structure in the prior art is changed, that is, it is replaced with a stirring structure containing a scraper and a stirring shaft, and the scraper is in contact with the semi-cylindrical cavity, thereby avoiding the problem that the bottom surface of the box body is difficult to clean; and the rotation of the scraper and the stirring shaft makes the sludge in the semi-cylindrical cavity flow fully as a whole, so that the sludge is in more sufficient contact with the liquid;

[0017] The stirring shaft is hollow and connected to the guide chamber so that the liquid in the guide chamber flows into the hollow chamber in the stirring shaft. The overflow hole on the stirring shaft is connected to the hollow chamber of the stirring shaft so that the liquid in the hollow chamber of the stirring shaft flows out through the overflow hole, thereby improving the flow effect of the liquid and further improving the contact effect between the sludge and the liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0019] Figure 1It is a main schematic diagram of the utility model;

[0020] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the central shaft, scraper, stirring shaft, inner positioning seat and water pipe of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the scraper of the utility model.

[0023] In the figure: 1. box body; 2. central axis; 3. scraper; 4. stirring shaft; 5. overflow hole; 6. guide cavity; 7. inner positioning seat; 8. water pipe. DETAILED DESCRIPTION

[0024] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0025] Reference Figure 1-Figure 4 A UASB anaerobic reactor comprises an anaerobic generator body including a box body 1, wherein the structure of the anaerobic generator body is the same as the structure of the "improved UASB anaerobic reactor" applied for application number "202223029447.0", and the improvements are as follows: 1. The inner bottom surface of the box body 1 in the prior art is designed as a semi-cylindrical cavity; 2. The stirring structure in the prior art is changed and replaced with a stirring structure including a scraper 3 and a stirring shaft 4.

[0026] Reference Figure 2 Based on the semi-cylindrical cavity, a central shaft 2 is coaxially connected in rotation in the semi-cylindrical cavity, wherein the driving mode of the central shaft 2 is preferably motor-driven, and the specific configuration is as follows: the outer wall of the box body 1 is fixedly connected to the motor, and one end of the central shaft 2 is fixed to the output end of the motor. In addition, a plurality of scrapers 3 are fixedly connected to the central shaft 2, and the scrapers 3 are in contact with the inner wall of the semi-cylindrical cavity. The rotation of the scrapers 3 not only facilitates the cleaning of the inner bottom surface of the box body 1, but also prevents sludge from adhering to the inner bottom surface of the box body 1 for a long time, thereby facilitating subsequent cleaning.

[0027] Reference Figure 3 The horizontal end section of the scraper 3 is fan-shaped. This arrangement helps the fan-shaped inclined surface of the scraper 3 to shovel the sludge on the inner surface of the semi-cylindrical cavity during the rotation of the scraper 3, and also helps the shoveled sludge to transfer downward along the fan-shaped inclined surface of the scraper 3, so that the sludge in the semi-cylindrical cavity can flow fully, thereby facilitating full contact with the liquid later.

[0028] Reference Figure 3 and Figure 4 The scraper 3 is U-shaped and hollow inside the scraper 3. The hollow structure is used for liquid transportation. Furthermore, in order to facilitate the transportation of liquid into the hollow chamber of the scraper 3, a guide chamber 6 is provided at one end of the central shaft 2. The end of the scraper 3 is connected to the guide chamber 6, that is, the liquid is first transferred to the central shaft 2, and then transferred from the end of the scraper 3 to the central chamber of the scraper 3. The overflow hole 5 on the scraper 3 is connected to the hollow chamber in the scraper 3, and the liquid transported in the hollow chamber of the scraper 3 flows out from the overflow hole 5.

[0029] Reference Figure 2 and Figure 3 A plurality of stirring shafts 4 are connected between the scraper 3 and the central shaft 2. The setting of the stirring shafts 4 helps the sludge in the semi-cylindrical cavity to flow fully. Overflow holes 5 are set on the stirring shafts 4 and the scraper 3. Based on the setting position of the overflow holes 5, when the scraper 3 and the stirring shaft 4 rotate in the semi-cylindrical cavity to drive the sludge to flow, the liquid flows out from the overflow holes 5, thereby helping the liquid to fully contact the sludge in the semi-cylindrical cavity. Furthermore, the overflow holes 5 on the scraper 3 are set on both sides of the front and rear of the horizontal end of the scraper 3 to help the liquid flow out.

[0030] Reference Figure 2 The stirring shaft 4 is hollow and connected to the guide chamber 6 so that the liquid in the guide chamber 6 flows to the hollow chamber in the stirring shaft 4. The overflow hole 5 on the stirring shaft 4 is connected to the hollow chamber of the stirring shaft 4 so that the liquid in the hollow chamber of the stirring shaft 4 flows out through the overflow hole 5.

[0031] Reference Figure 1-Figure 3 An inner positioning seat 7 is fixedly connected to the center of the inner wall of one side of the semi-cylindrical cavity, and the inner wall of the diversion cavity 6 is rotatably sleeved on the inner positioning seat 7, and the inner positioning seat 7 is connected to the water delivery component for delivering liquid, and is used to deliver liquid in the diversion cavity 6. Further, the liquid in the circulation pipeline in the "Improved UASB Anaerobic Reactor" applied for application number "202223029447.0" flows to the diversion cavity 6 through the inner positioning seat 7. Further, in order to facilitate the flow of liquid in the diversion cavity 6, a water delivery pipe 8 is coaxially fixed to the inner positioning seat 7, and the water delivery pipe 8 extends into the diversion cavity 6.

[0032] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A UASB anaerobic reactor, characterized in that: The invention comprises an anaerobic generator body including a box body (1), wherein the bottom of the box body (1) is a semi-cylindrical cavity, a central shaft (2) is coaxially rotatably connected in the semi-cylindrical cavity, a plurality of scrapers (3) are fixedly connected to the central shaft (2), the scrapers (3) are in contact with the inner wall of the semi-cylindrical cavity, a plurality of stirring shafts (4) are connected between the scrapers (3) and the central shaft (2), and overflow holes (5) are provided on the stirring shafts (4) and the scrapers (3).

2. A UASB anaerobic reactor according to claim 1, characterized in that: The scraper (3) is arranged in a U-shape, and the scraper (3) is hollow inside, and the overflow hole (5) on the scraper (3) is connected to the hollow chamber inside the scraper (3).

3. A UASB anaerobic reactor according to claim 2, characterized in that: A flow guide cavity (6) is provided at one end of the central shaft (2), and an end of the scraper (3) is connected to the flow guide cavity (6).

4. A UASB anaerobic reactor according to claim 3, characterized in that: The stirring shaft (4) is hollow, the stirring shaft (4) is connected to the flow guide cavity (6), and the overflow hole (5) on the stirring shaft (4) is connected to the hollow chamber of the stirring shaft (4).

5. A UASB anaerobic reactor according to claim 3, characterized in that: An inner positioning seat (7) is fixedly connected at the center of the inner wall of one side of the semi-cylindrical cavity, the inner wall of the diversion cavity (6) is rotatably sleeved on the inner positioning seat (7), and the inner positioning seat (7) is connected to a water conveying component for conveying liquid, so as to convey liquid into the diversion cavity (6).

6. A UASB anaerobic reactor according to claim 5, characterized in that: A water delivery pipe (8) is coaxially fixed to the inner positioning seat (7), and the water delivery pipe (8) extends into the diversion cavity (6).

7. A UASB anaerobic reactor according to claim 2, characterized in that: The overflow holes (5) on the scraper (3) are arranged on both sides of the front and rear of the horizontal end of the scraper (3).

8. A UASB anaerobic reactor according to claim 1, characterized in that: The horizontal end section of the scraper (3) is arranged in a fan shape.

9. A UASB anaerobic reactor according to claim 1, characterized in that: The outer wall of the box body (1) is fixedly connected to a motor, and one end of the central axis (2) is fixed to the output end of the motor.

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