Uniform water distribution efficient anti-blocking steel structure type anaerobic tank wastewater treatment device

Abstract

The present application relates to a kind of even water distribution efficient anti-blocking steel structure formula anaerobic tank wastewater treatment device, its anaerobic tank body is sequentially provided with water inlet unit, three-phase separation unit and reaction cavity from top to bottom inside, water inlet unit includes water inlet ring group and water distribution ring, water inlet ring group includes water inlet inner ring and water inlet outer ring, and water inlet inner ring, water inlet outer ring and water distribution ring are concentrically arranged from inside to outside, water distribution ring is divided into water inlet ring cavity and water outlet ring cavity by water weir plate inside, and water inlet outer ring is communicated with water inlet ring cavity by water distribution pipe, the inside of water outlet ring cavity is equipped with multiple water distribution end pipes, and the lower end of each water distribution end pipe is equipped with water distribution output pipe and is communicated with the bottom of reaction cavity, and the upper end of reaction cavity is equipped with water amount backflow adjusting assembly and is communicated with water inlet inner ring by backflow pipeline, water inlet unit and three-phase separation unit are equipped with water outlet tank, and the upper end of three-phase separation unit is equipped with separation exhaust pipe.The present application can realize large-area even water distribution and can efficiently prevent blocking, and water inlet hydraulic load can be flexibly adjusted simultaneously.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment, specifically to a uniformly distributed, highly efficient, and clog-resistant steel-structured anaerobic tank wastewater treatment device. Background Technology

[0002] High-concentration organic wastewater treatment systems typically employ an anaerobic reactor + aerobic reactor process. The anaerobic reactor has strict requirements for water distribution and sludge-water mixing. Whether the water can be evenly distributed and whether the wastewater to be treated can be fully mixed and contacted with the microbial sludge in the reactor are key factors in determining the treatment efficiency of the anaerobic reactor.

[0003] In existing anaerobic reactors, water distribution pipes are mostly located at the bottom of the tank and use a perforated pipe distribution method. The pipes have evenly spaced circular openings forming distribution holes. After a period of operation, these holes often become clogged. Because the openings are uniformly spaced throughout the pipe, it is difficult to clear the blockage by increasing the flushing water. This results in localized areas where the wastewater to be treated cannot contact the microbial sludge in the reactor, reducing reactor efficiency. It also easily leads to excessively high local hydraulic loads, causing some microbial sludge to be flushed out of the reactor, further reducing reactor efficiency and increasing the load on subsequent treatment units. For example, patent CN218262145U discloses an anaerobic tank and wastewater treatment system with a U-shaped water distribution pipe assembly at the bottom of the tank.

[0004] In addition, existing anaerobic reactors also utilize water distributors to achieve pulsed water distribution. For example, patent CN210915508U discloses a pulsed water distribution type UASB anaerobic reactor. Its water inlet system includes an inlet pipe, an outlet pipe, and a pulsed water distributor. The inlet pipe is vertically arranged at the center of the tank, and the bottom outlet of the pulsed water distributor is connected to the top opening of the inlet pipe. The outlet pipe is connected to the bottom of the inlet pipe and discharges water at the bottom of the tank. This pulsed water distribution method requires strict control of the inlet flow rate and pulse cycle, making operation and management difficult. There are two periods before and after the cycle when the water distribution is relatively small, making it impossible to achieve sufficient mixing of mud and water in the reactor.

[0005] With the development of technology, vortex water distribution methods have emerged in existing technologies. For example, CN208561844U discloses an integrated vortex water distributor for an anaerobic tank. One end of its inlet pipe is closed, and the other end is fixedly connected to a water distributor. The water distributor penetrates the bottom of the anaerobic tank. This device solves the problem of dead corners in traditional anaerobic tanks by setting a spiral inlet pipe with spray heads on it. The wastewater is sprayed into the interior of the anaerobic tank through the spray heads, which allows the sprayed wastewater to fully contact the sludge. For example, CN116119820B patent also discloses a point-to-point vortex mixing anaerobic water distribution device, which includes an outer cylinder, an inner cylinder, a rotating disk, water distribution pipes and other structures. The inner cylinder is provided with a rotatable central shaft, and the central shaft drives the rotating disk to rotate. After the rotating disk rotates, it drives several connected water distribution pipes to continuously generate expansion motion to achieve uniform water distribution. In addition, each water distribution pipe moves with the arc-shaped groove. In this way, with the cooperation of the inner and outer arc-shaped grooves, the spacing between the water distribution pipes always maintains uniform expansion, thereby ensuring the uniformity of water distribution.

[0006] However, the above structures all require rotational power and are relatively complex, making them difficult to apply to large-volume anaerobic ponds with large water treatment capacity. Anaerobic ponds generally require a high height and are located at the front end of the wastewater treatment system. Therefore, large-volume anaerobic pond equipment usually uses a fully underground concrete tank, which requires a large amount of excavation. In areas with high groundwater levels, dewatering measures are also required, making construction difficult and costly. Moreover, the effluent from fully underground anaerobic ponds often requires secondary lifting, which results in high energy consumption and high operating costs. Summary of the Invention

[0007] The purpose of this invention is to provide a uniform water distribution, high efficiency and anti-clogging steel structure anaerobic tank wastewater treatment device, which can achieve uniform water distribution over a large area and effectively prevent clogging. At the same time, it can flexibly adjust the hydraulic load of the influent and ensure sufficient contact between mud and water, thereby ensuring reaction efficiency. Furthermore, it is easy to install and reduces the construction and operating costs of the equipment.

[0008] The objective of this invention is achieved through the following technical solution: A uniformly distributed, high-efficiency, anti-clogging steel-structured anaerobic tank wastewater treatment device includes an anaerobic tank body. Inside the anaerobic tank body, from top to bottom, are arranged an inlet unit, a three-phase separation unit, and a reaction chamber. The inlet unit includes an inlet ring assembly and a distribution ring. The inlet ring assembly includes an inner inlet ring and an outer inlet ring, and the inner inlet ring, outer inlet ring, and distribution ring are concentrically arranged from the inside out. The distribution ring is internally divided into an inner inlet ring cavity and an outer outlet ring cavity by a weir plate. The outer inlet ring... A water distribution pipe arranged along the circumference is connected to the inlet annular cavity. Multiple water distribution end pipes are arranged along the circumference inside the outlet annular cavity, and each water distribution end pipe has a water distribution output pipe at its lower end that is connected to the bottom of the reaction chamber. A water flow reflux adjustment component is provided at the upper end of the reaction chamber, and the water flow reflux adjustment component is connected to the inlet inner ring through a reflux pipe. An outlet trough is provided on the inner wall of the anaerobic tank between the inlet unit and the three-phase separation unit. A separation exhaust pipe is provided at the upper end of the three-phase separation unit.

[0009] The anaerobic tank is provided with a water inlet support frame at the upper end, and the water inlet unit is installed on the water inlet support frame. Multiple water inlet support vertical beams are provided between the water inlet support frame and the three-phase separation unit. A water inlet support column is provided in the middle of the anaerobic tank, and the water inlet support column passes through the three-phase separation unit and is connected to the middle of the water inlet support frame.

[0010] The upper end of the water-passing weir plate is equipped with a water-passing regulating weir plate.

[0011] The bottom of the reaction chamber is equipped with a reflective cone, and the lower outlet of each water distribution pipe is aligned with the corresponding reflective cone.

[0012] The three-phase separation unit has multiple rows of separation triangular plates arranged along the height direction inside, and the upper sealed corners of the separation triangular plates form air chambers. The three-phase separation unit has a gas collection chamber in the middle. Each separation triangular plate is arranged in parallel and the internal air chambers are all connected to the gas collection chamber. The upper side of the gas collection chamber is provided with a separation exhaust pipe connected to the gas collection assembly.

[0013] The three-phase separation unit is housed in a separation unit frame, which is located within the anaerobic tank. The separation unit frame has an upper separation unit frame on its upper side and a lower separation unit frame on its lower side. A water flow reflux adjustment component is located on the lower side of the lower separation unit frame. Additionally, a separation support column is located within the anaerobic tank, and the upper end of the separation support column is fixedly connected to the lower separation unit frame.

[0014] The water return regulating component includes a regulating return main pipe and regulating return branch pipes, wherein each regulating return branch pipe is connected to the regulating return main pipe, and the water inlet ends of each regulating return branch pipe are distributed in a circular shape. The regulating return main pipe is connected to the water inlet inner ring through a return pipeline, and a return pump is provided on the return pipeline.

[0015] The lower end of the reaction chamber is provided with a sludge discharge assembly, which includes a sludge discharge main pipe and sludge discharge branch pipes. Each sludge discharge branch pipe is connected to the sludge discharge main pipe, and the sludge discharge main pipe is connected to the sludge discharge pipeline outside the anaerobic tank.

[0016] The reaction chamber is equipped with a sampling assembly, which includes multiple reaction sampling tubes. Each reaction sampling tube is fixed to the inner wall of the reaction chamber by a sampling tube fixing seat. The sampling tube opening height of each reaction sampling tube in the reaction chamber is different, and the output end of each reaction sampling tube is located on the upper side of a sampling slot.

[0017] The water outlet trough includes a vertically arranged water outlet bottom plate and a water outlet vertical plate, wherein the water outlet bottom plate is fixed to the inner wall of the anaerobic tank, and the upper end of the water outlet vertical plate is provided with a water outlet regulating weir plate.

[0018] The advantages and positive effects of this invention are as follows: 1. The water inlet unit of the present invention can achieve uniform water distribution over a large area, and is especially suitable for anaerobic equipment with large volume and large water treatment capacity, and can achieve efficient anti-clogging function.

[0019] 2. The water distribution ring of the water inlet unit of the present invention is provided with a water weir plate inside, which can ensure that the incoming water flows into the water outlet ring cavity evenly. At the same time, the water weir plate can be set with a water adjustment weir plate for adjustment according to actual needs. While ensuring the water weir is leveled and the water outlet is even, the water outlet volume can also be flexibly adjusted.

[0020] 3. This invention utilizes a water reflux regulating component to draw relatively clear water from the top of the reaction chamber and output it back to the inner ring of the water inlet unit to fully mix with the incoming water. Then, the water is circulated and distributed to the bottom of the reaction chamber. This can regulate the hydraulic load of the incoming water. By controlling the circulating reflux water volume, this invention can ensure that the upward flow velocity of the mud-water mixture at the bottom of the tank is stable and meets the treatment requirements under different incoming water volume conditions.

[0021] 4. The present invention has a reflective cone at the bottom of the reaction chamber, and the lower outlet of each water distribution pipe is aligned with the corresponding reflective cone. In this way, the water output from the water distribution pipe automatically flows upward through the diffuse reflection effect of the reflective cone. Furthermore, since the present invention has multiple water distribution pipes that are densely distributed along the circumference, and with the position design of the water distribution ring in the tank, the water can interact to form a mixed flow effect during the diffuse reflection upward flow, thereby ensuring sufficient contact between mud and water. At the same time, the diffuse reflection effect of the reflective cone can also avoid the problem of dead corners at the bottom of the anaerobic tank.

[0022] 5. The water inlet support frame and separation unit frame of the present invention are all made of steel structure and are modularly designed, which facilitates installation, disassembly and cleaning. At the same time, since large-scale earthwork is not required, the construction period can be shortened. In addition, the entire device does not have any other power devices except for the return pump. Moreover, the return pump only drives a relatively small amount of water to return to achieve hydraulic load regulation. Therefore, the power consumption of the present invention is greatly reduced and the operating cost is low. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 2 This is a schematic diagram showing the flow direction of water, mud, and air during the operation of this invention. Figure 3 for Figure 1 Schematic diagram of the water inlet unit. Figure 4 for Figure 3 A three-dimensional structural diagram of the central water inlet unit. Figure 5 for Figure 3 Another perspective of the three-dimensional structure of the water inlet unit. Figure 6 for Figure 3 Enlarged cross-sectional view of the Zhongbu water ring. Figure 7 for Figure 6 Front view of the regulating weir plate in the middle of the water passage. Figure 8 for Figure 1 Enlarged view of the separation triangle plate in the three-phase separation unit. Figure 9 for Figure 2 AA view in Figure 10 for Figure 2 BB view in Figure 11 for Figure 2 CC view in Figure 12 for Figure 11Installation diagram of the sampling tube for the reaction. Figure 13 for Figure 1 Enlarged schematic diagram of the center outlet water tank.

[0024] Among them, 1 is the water inlet unit, 101 is the water inlet ring group, 1011 is the inner water inlet ring, 1012 is the outer water inlet ring, 102 is the water distribution pipe, 103 is the water distribution ring, 1031 is the water weir plate, 1032 is the water distribution end pipe, 1033 is the water inlet ring cavity, 1034 is the water outlet ring cavity, 1035 is the water flow regulating weir plate, 10351 is the regulating elongated hole, 1036 is the fastening bolt, 1037 is the sealing strip, 104 is the water distribution output pipe, 105 is the water inlet support frame, 106 is the water inlet support vertical beam, 107 is the water inlet support column, 2 is the three-phase separation unit, 201 is the separation triangle plate, 2011 is the air cavity, 202 is the upper frame of the separation unit, 203 is the lower frame of the separation unit, 2031 is the first crossbeam, 2032 is the lower frame of the separation unit, and so on. 204 is the second crossbeam, 205 is the separation support column, 205 is the gas collection chamber, 2051 is the column through hole, 2052 is the separation exhaust pipe, 3 is the reaction chamber, 301 is the reflective cone, 4 is the water outlet tank, 401 is the water outlet vertical plate, 402 is the water outlet bottom plate, 403 is the water outlet regulating weir plate, 5 is the cover plate, 6 is the gas collection assembly, 601 is the gas-liquid separator, 602 is the gas outlet pipe, 7 is the water flow return regulating assembly, 701 is the regulating return main pipe, 702 is the regulating return branch pipe, 8 is the sludge discharge assembly, 801 is the sludge discharge main pipe, 802 is the sludge discharge branch pipe, 9 is the sampling assembly, 901 is the reaction sampling pipe, 902 is the sampling tank, 903 is the sampling tank drain pipe, 904 is the sampling pipe port, and 905 is the sampling pipe fixing seat. Detailed Implementation

[0025] The invention will now be described in further detail with reference to the accompanying drawings.

[0026] like Figures 1-13 As shown, the present invention includes an anaerobic tank, and the interior of the anaerobic tank is provided with, from top to bottom, a water inlet unit 1, a three-phase separation unit 2, and a reaction chamber 3, wherein, as shown... Figures 3-5 As shown, the water inlet unit 1 includes a water inlet ring assembly 101 and a water distribution ring 103. The water inlet ring assembly 101 includes an inner water inlet ring 1011 and an outer water inlet ring 1012, and the inner water inlet ring 1011, the outer water inlet ring 1012, and the water distribution ring 103 are concentrically arranged from the inside to the outside. The water distribution ring 103 is divided into an inner water inlet ring cavity 1033 and an outer water outlet ring cavity 1034 by a weir plate 1031. The outer water inlet ring 1012 is connected to the water inlet ring cavity 1033 by water distribution pipes 102 evenly distributed along the circumference. The water outlet ring cavity 1034 has multiple water distribution end pipes 1032 evenly distributed along the circumference, and each water distribution end pipe 1032 has a water distribution output pipe 104 at its lower end, which is connected to the bottom of the reaction chamber 3. Figure 2 As shown, the upper end of the reaction chamber 3 is provided with a water flow reflux regulating component 7, and the water flow reflux regulating component 7 is connected to the water inlet inner ring 1011 through a reflux pipe, as shown. Figure 1 As shown, the anaerobic tank between the water inlet unit 1 and the three-phase separation unit 2 is provided with a water outlet trough 4, and the upper end of the three-phase separation unit 2 is provided with a separation exhaust pipe 2052 connected to the gas collection assembly 6.

[0027] like Figure 2 As shown, during operation, the water first flows into the inner inlet ring 1011, then overflows into the outer inlet ring 1012, and flows evenly through each distribution pipe 102 into the inlet ring cavity 1033 of the distribution ring 103. It then overflows through the weir plate 1031 into the outlet ring cavity 1034 of the distribution ring 103, and finally flows directly to the bottom of the reaction chamber 3 through each distribution end pipe 1032 and the distribution outlet pipe 104. This invention, through the above design, can first achieve large-area uniform water distribution, and is especially suitable for large-volume anaerobic equipment with large water treatment capacity. The inlet water overflows from the inner inlet ring 1011 into the outer inlet ring 1012, and then flows into each distribution pipe 102, achieving rapid and uniform water distribution. Conversely, the inlet water overflows from the inlet ring cavity 1033 of the distribution ring 103 into the outlet ring cavity 1034, achieving rapid and uniform water distribution. Furthermore, both the outer inlet ring 1012 and the distribution ring 103 adopt annular channels. The structure of the water distribution pipe 102 is relatively large to meet the requirements of rapid water distribution. These features greatly reduce the possibility of impurities in the water clogging the pipes. Each water distribution outlet pipe 104 is set along the height direction of the anaerobic tank. Therefore, even if there are still impurities in the water, they can flow into the anaerobic tank under the combined action of gravity and water flow without clogging. Thus, in addition to using the water inlet ring group 101 and water distribution ring 103 in the water inlet unit 1 to achieve large-area uniform water distribution, this invention can also achieve efficient anti-clogging function of the water distribution pipe.

[0028] like Figures 1-2 As shown, the upper opening of the inner water inlet ring 1011 is lower than the upper opening of the outer water inlet ring 1012.

[0029] like Figures 1-2 As shown in this embodiment, the anaerobic tank is provided with a water inlet support frame 105 at the upper end, the water inlet unit 1 is installed on the water inlet support frame 105, and the upper side of the water inlet unit 1 is provided with a cover plate 5 to ensure the sealing of the tank interior.

[0030] like Figures 1-2As shown, in this embodiment, multiple water inlet support beams 106 are provided between the water inlet support frame 105 and the three-phase separation unit 2 to provide auxiliary support for the water inlet support frame 105. In addition, a water inlet support column 107 is provided in the middle of the anaerobic tank, and the water inlet support column 107 passes through the three-phase separation unit 2 and connects to the middle of the water inlet support frame 105 to provide auxiliary support for the water inlet support frame 105.

[0031] like Figures 6-7 As shown, a water-passing regulating weir plate 1035 can be set on the water-passing weir plate 1031 inside the water distribution ring 103 according to actual needs. In this embodiment, the lower end of the water-passing regulating weir plate 1035 is provided with an adjusting elongated hole 10351 along the vertical direction. The lower end of the water-passing regulating weir plate 1035 is fixed to the water-passing weir plate 1031 by a fastening bolt 1036, and the fastening bolt 1036 passes through the corresponding adjusting elongated hole 10351. A sealing strip 1037 is provided between the water-passing regulating weir plate 1035 and the water-passing weir plate 1031 to ensure a seal. In this way, the incoming water can only overflow into the water outlet ring cavity 1034 from the upper end of the water-passing regulating weir plate 1035.

[0032] like Figures 1-2 As shown, in this embodiment, the bottom of the reaction chamber 3 is provided with a reflective cone 301, and the lower outlet of each water distribution pipe 104 is respectively aligned with the corresponding reflective cone 301, so that... Figure 2 As shown, the water output from the water distribution pipe 104 automatically flows upwards through the diffuse reflection effect of the reflective cone 301. Furthermore, the present invention has multiple water distribution pipes 104 arranged relatively densely along the circumference. Combined with the position of the water distribution ring 103 in the tank, the water can interact to form a mixed flow effect during the diffuse reflection upward flow, thereby ensuring sufficient contact between mud and water. At the same time, the diffuse reflection effect of the reflective cone 301 can also avoid the problem of dead corners at the bottom of the anaerobic tank.

[0033] like Figures 1-2 and Figures 8-9 As shown, in this embodiment, the three-phase separation unit 2 has multiple rows of separation triangular plates 201 arranged along the height direction inside, wherein, as shown... Figure 8 As shown, each separating triangular plate 201 forms an air cavity 2011 at its upper sealing corner, as... Figure 9 As shown, the three-phase separation unit 2 has a gas collection chamber 205 in the middle, and each separation triangular plate 201 is arranged in parallel and the internal gas chambers 2011 are all connected to the gas collection chamber 205. Figure 1 As shown, a separate exhaust pipe 2052 is provided on the upper side of the gas collection chamber 205, which is connected to the gas collection assembly 6. Figure 2As shown, during operation, the water flow is reflected upwards by the reflective cone 301. When the water flow contacts the separation triangular plate 201, sludge and impurities are deposited at the bottom of the reaction chamber 3 under the obstruction of the separation triangular plate 201 and the action of gravity. After passing through each separation triangular plate 201, the water flows into the cavity between the three-phase separation unit 2 and the water inlet unit 1, and finally overflows into the outlet tank 4 for discharge. Figure 8 As shown, the gas in the water is blocked by the separating triangular plate 201 and concentrated in the air cavity 2011 formed at the upper corner of the separating triangular plate 201, and as... Figure 9 As shown, the gas finally flows into the gas collection chamber 205 and is discharged into the gas collection assembly 6 through the separation exhaust pipe 2052.

[0034] like Figures 1-2 As shown, in this embodiment, the three-phase separation unit 2 is housed in a separation unit frame, which is located within the anaerobic tank. The upper side of the upper separation unit frame 202 of the separation unit frame is provided with the water inlet support beam 106, and the lower side of the lower separation unit frame 203 of the separation unit frame is provided with the water flow return regulating component 7. In addition, the anaerobic tank is provided with a separation support column 204, and the upper end of the separation support column 204 is fixedly connected to the lower separation unit frame 203 to achieve auxiliary support.

[0035] like Figure 10 As shown in this embodiment, the upper frame 202 and the lower frame 203 of the separation unit have the same structure, both including a first crossbeam 2031 and a second crossbeam 2032 arranged vertically, so as to ensure support without affecting the flow of water.

[0036] like Figure 9 As shown, in this embodiment, the gas collection chamber 205 is provided with a column through hole 2051 in the middle, and the water inlet support column 107 passes through the corresponding column through hole 2051 and is fixedly connected to the water inlet support frame 105.

[0037] like Figure 1 As shown, in this embodiment, the gas collection assembly 6 includes a gas-liquid separator 601 and an outlet pipe 602, and the separation exhaust pipe 2052, the gas-liquid separator 601 and the outlet pipe 602 are connected in sequence. The gas output from the gas collection chamber 205 is further separated into gas and liquid by the gas-liquid separator 601 and then flows into the water seal tank through the outlet pipe 602. The gas-liquid separator 601 is a technology known in the art and is a commercially available product.

[0038] like Figure 2 and Figure 10As shown, in this embodiment, the water return regulating component 7 is located on the lower side of the separation unit frame 203. The water return regulating component 7 includes a regulating return main pipe 701 and regulating return branch pipes 702. Each regulating return branch pipe 702 is connected to the regulating return main pipe 701, and the water inlet end of each regulating return branch pipe 702 forms a circular shape. The regulating return main pipe 701 is installed on the corresponding first crossbeam 2031 of the separation unit frame 203, and each regulating return branch pipe 702 is installed on the corresponding second crossbeam 2032 of the separation unit frame 203. The regulating return main pipe 701 is connected to the water inlet inner ring 1011 through the return pipeline, and a return pump is provided on the return pipeline.

[0039] like Figure 1 As shown, the lower end of the reaction chamber 3 is equipped with a sludge discharge assembly 8 for discharging sludge from the bottom of the tank. Figure 11 As shown, in this embodiment, the sludge discharge assembly 8 includes a sludge discharge main pipe 801 and sludge discharge branch pipes 802. Each sludge discharge branch pipe 802 is connected to the sludge discharge main pipe 801, and the sludge discharge main pipe 801 is connected to the sludge discharge pipeline outside the anaerobic tank.

[0040] like Figures 11-12 As shown, in this embodiment, the reaction chamber 3 is further provided with a sampling component 9, which includes a plurality of reaction sampling tubes 901, such as... Figure 12 As shown, each reaction sampling tube 901 is fixed to the inner wall of the reaction chamber 3 by the sampling tube fixing seat 905, and the sampling tube opening 904 of each reaction sampling tube 901 is at a different height in the reaction chamber 3, so that water samples at different heights can be taken for testing.

[0041] like Figure 11 As shown, the output end of each reaction sampling tube 901 is located on the upper side of a sampling tank 902 to prevent the sample liquid from spreading. The sampling tank 902 is connected to the output end of the sludge discharge main pipe 801 through the sampling tank drain pipe 903 to discharge the liquid in the tank.

[0042] like Figure 1 and Figure 13 As shown in this embodiment, the water outlet trough 4 includes a vertically arranged water outlet bottom plate 402 and a water outlet vertical plate 401. The water outlet bottom plate 402 is fixed to the inner wall of the anaerobic tank. Water overflows into the water outlet trough 4 from the upper end of the water outlet vertical plate 401, which can ensure uniform water output. In addition, the upper end of the water outlet vertical plate 401 can be equipped with a water outlet regulating weir plate 403 according to actual needs. The structure and working principle of the water outlet regulating weir plate 403 are the same as those of the water flow regulating weir plate 1035.

[0043] The working principle of this invention is as follows: like Figure 2As shown, during operation, the water first flows into the inner inlet ring 1011, then overflows into the outer inlet ring 1012, and flows evenly through each distribution pipe 102 into the inlet ring cavity 1033 of the distribution ring 103. It then overflows through the weir plate 1031 into the outlet ring cavity 1034 of the distribution ring 103, and finally flows through each distribution end pipe 1032 and the distribution outlet pipe 104 to the bottom of the reaction chamber 3. The water output from the distribution outlet pipe 104 is bent upwards by the diffuse reflection of the reflective cone 301 at the bottom of the reaction chamber 3, until it enters the three-phase separation unit 2 to achieve gas, water, and sludge three-phase separation. Sludge impurities are deposited at the bottom of the reaction chamber 3 under the obstruction of the separation triangular plate 201 and gravity. Water flows upwards through the gaps between the separation triangular plates 201 and finally overflows into the outlet tank 4 for discharge. The gas... Figure 8 The gas remains in the air cavity 2011 formed at the upper sealed corner of the separating triangular plate 201, and flows into the gas collection chamber 205 in the middle of the three-phase separation unit 2, and finally enters the gas collection assembly 6 through the separating exhaust pipe 2052. Additionally, as shown... Figure 2 As shown, the present invention has a water flow reflux regulating component 7 at the upper end of the reaction chamber 3 and a sludge discharge component 8 at the lower end of the reaction chamber 3. The water flow reflux regulating component 7 is connected to the water inlet inner ring 1011 in the water inlet unit 1 through a reflux pipeline to regulate the water inlet hydraulic load. By controlling the circulating reflux water volume, the present invention can ensure that the upward flow velocity of the mud-water mixture at the bottom of the tank is stable and meets the treatment requirements under different water inlet volumes.

Claims

1. A uniformly distributed, high-efficiency, anti-clogging steel-structured anaerobic tank wastewater treatment device, characterized in that: The system includes an anaerobic tank, and the anaerobic tank is provided with an inlet unit (1), a three-phase separation unit (2), and a reaction chamber (3) arranged from top to bottom inside the tank. The inlet unit (1) includes an inlet ring assembly (101) and a distribution ring (103). The inlet ring assembly (101) includes an inner inlet ring (1011) and an outer inlet ring (1012). The inner inlet ring (1011), the outer inlet ring (1012), and the distribution ring (103) are concentrically arranged from the inside to the outside. The distribution ring (103) is divided into an inner inlet ring cavity (1033) and an outer outlet ring cavity (1034) by a weir plate (1031). The outer inlet ring (1012) is arranged along the circumference. The water distribution pipe (102) is connected to the water inlet ring cavity (1033). The water outlet ring cavity (1034) has multiple water distribution end pipes (1032) arranged along the circumferential direction. Each water distribution end pipe (1032) has a water distribution output pipe (104) at its lower end, which is connected to the bottom of the reaction chamber (3). The upper end of the reaction chamber (3) is provided with a water flow return regulating component (7). The water flow return regulating component (7) is connected to the water inlet inner ring (1011) through a return pipe. The inner wall of the anaerobic tank between the water inlet unit (1) and the three-phase separation unit (2) is provided with a water outlet trough (4). The upper end of the three-phase separation unit (2) is provided with a separation exhaust pipe (2052). The upper end of the water-passing weir plate (1031) is provided with a water-passing regulating weir plate (1035); The water return regulating component (7) includes a regulating return main pipe (701) and regulating return branch pipes (702), wherein each regulating return branch pipe (702) is connected to the regulating return main pipe (701), and the water inlet ends of each regulating return branch pipe (702) are distributed in a circular shape. The regulating return main pipe (701) is connected to the water inlet inner ring (1011) through a return pipeline, and a return pump is provided on the return pipeline. The incoming water first flows into the inner inlet ring (1011), then overflows into the outer inlet ring (1012), and flows evenly into the inlet ring cavity (1033) of the water distribution ring (103) through each water distribution pipe (102). Then it overflows through the water weir plate (1031) and flows into the outlet ring cavity (1034) of the water distribution ring (103). Finally, it flows directly to the bottom of the reaction chamber (3) through each water distribution end pipe (1032) and water distribution output pipe (104).

2. The uniform water distribution, high-efficiency anti-clogging steel structure anaerobic tank wastewater treatment device according to claim 1, characterized in that: The anaerobic tank is provided with a water inlet support frame (105) at the upper end, and the water inlet unit (1) is installed on the water inlet support frame (105). Multiple water inlet support beams (106) are provided between the water inlet support frame (105) and the three-phase separation unit (2). A water inlet support column (107) is provided in the middle of the anaerobic tank, and the water inlet support column (107) passes through the three-phase separation unit (2) and is connected to the middle of the water inlet support frame (105).

3. The uniform water distribution, high-efficiency anti-clogging steel structure anaerobic tank wastewater treatment device according to claim 1, characterized in that: The bottom of the reaction chamber (3) is provided with a reflective cone (301), and the lower outlet of each water distribution pipe (104) is aligned with the corresponding reflective cone (301).

4. The uniform water distribution, high-efficiency anti-clogging steel structure anaerobic tank wastewater treatment device according to claim 1, characterized in that: The three-phase separation unit (2) has multiple rows of separation triangle plates (201) arranged along the height direction inside, and the upper sealing corner of the separation triangle plate (201) forms a gas cavity (2011). The three-phase separation unit (2) has a gas collection chamber (205) in the middle. Each separation triangle plate (201) is arranged in parallel and the internal gas cavity (2011) is connected to the gas collection chamber (205). The upper side of the gas collection chamber (205) is provided with a separation exhaust pipe (2052) connected to the gas collection assembly (6).

5. The uniform water distribution, high-efficiency anti-clogging steel structure anaerobic tank wastewater treatment device according to claim 1 or 4, characterized in that: The three-phase separation unit (2) is located in a separation unit frame, which is located in the anaerobic tank. The upper side of the separation unit frame is provided with a separation unit upper frame (202), and the lower side is provided with a separation unit lower frame (203). The lower side of the separation unit lower frame (203) is provided with a water flow return regulating component (7). In addition, the anaerobic tank is provided with a separation support column (204), and the upper end of the separation support column (204) is fixedly connected to the separation unit lower frame (203).

6. The uniform water distribution, high-efficiency anti-clogging steel structure anaerobic tank wastewater treatment device according to claim 1, characterized in that: The reaction chamber (3) is provided with a sludge discharge assembly (8) at the lower end. The sludge discharge assembly (8) includes a sludge discharge main pipe (801) and sludge discharge branch pipes (802). Each sludge discharge branch pipe (802) is connected to the sludge discharge main pipe (801). The sludge discharge main pipe (801) is connected to the sludge discharge pipeline outside the anaerobic tank.

7. The uniform water distribution, high-efficiency anti-clogging steel structure anaerobic tank wastewater treatment device according to claim 1, characterized in that: The reaction chamber (3) is provided with a sampling assembly (9), which includes multiple reaction sampling tubes (901). Each reaction sampling tube (901) is fixed to the inner wall of the reaction chamber (3) by a sampling tube fixing seat (905). The sampling tube openings (904) of each reaction sampling tube (901) are at different heights in the reaction chamber (3), and the output ends of each reaction sampling tube (901) are located on the upper side of a sampling slot (902).

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