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

Abstract

A water inlet unit, a three-phase separation unit and a reaction cavity are sequentially arranged in an anaerobic tank body from top to bottom, the water inlet unit comprises a water inlet ring group and a water distribution ring, the water inlet ring group comprises a water inlet inner ring and a water inlet outer ring, and the water distribution ring comprises a water outlet inner ring and a water outlet outer ring. The water inlet inner ring, the water inlet outer ring and the water distribution ring are concentrically arranged from inside to outside, the interior of the water distribution ring is divided into a water inlet ring cavity and a water outlet ring cavity through a water passing weir plate, the water inlet outer ring is communicated with the water inlet ring cavity through a water distribution pipe, and a plurality of water distribution end pipes are arranged in the water outlet ring cavity. The lower end of each water distribution end pipe is provided with a water distribution output pipe communicated with the bottom of the reaction cavity, the upper end of the reaction cavity is provided with a water backflow adjusting assembly communicated with the water inlet inner ring through a backflow pipeline, a water outlet groove is formed between the water inlet unit and the three-phase separation unit, and the upper end of the three-phase separation unit is provided with a separation exhaust pipe. According to the invention, large-area uniform water distribution can be realized, high-efficiency anti-blocking can be realized, and the water inlet hydraulic load can be flexibly adjusted.

Description

Technical Field

[0001] The invention relates to the field of sewage treatment, in particular to a uniform water distribution, high-efficiency and anti-clogging steel structure type anaerobic tank sewage treatment device. Background Art

[0002] High-concentration organic wastewater treatment systems usually use an anaerobic reactor + aerobic reactor treatment process. The anaerobic reactor has strict requirements on 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 the key to determining the treatment efficiency of the anaerobic reactor.

[0003] In the anaerobic reaction tank in the prior art, the water distribution pipes are mostly arranged at the bottom of the tank, and the perforated pipe water distribution form is adopted. The water distribution pipes are evenly opened with circular openings to form water distribution holes. After running for a period of time, the water distribution holes will be blocked. Because the entire pipe is evenly opened with circular openings, when some water distribution holes are blocked, it is difficult to open them by increasing the flushing water, resulting in the inability to achieve local contact between the wastewater to be treated and the microbial sludge in the reaction tank, reducing the efficiency of the reaction tank. At the same time, it is also easy to cause excessive local hydraulic load, and some microbial sludge is flushed out of the reaction tank, resulting in reduced efficiency of the reaction tank and increased processing load of subsequent treatment monomers. For example, the CN218262145U patent discloses an anaerobic tank and sewage treatment system, which is provided with a water distribution pipe group with a zigzag structure at the bottom of the tank.

[0004] In addition, the anaerobic reaction tank in the prior art also uses a water distributor to achieve a pulse water distribution method. For example, the CN210915508U patent discloses a pulse water distribution type UASB anaerobic reactor, whose water inlet system includes an inlet pipeline, an outlet pipeline and a pulse water distributor, and the inlet pipeline is vertically arranged at the center of the tank body, the bottom outlet of the pulse water distributor is connected to the top opening of the inlet pipeline, and the outlet pipeline is connected to the bottom of the inlet pipeline and discharges water at the bottom of the tank body. This pulse water distribution method requires strict control of the water inlet volume and pulse cycle, and is difficult to operate and manage. There is less water distribution in the two periods before and after the cycle, and it is impossible to achieve full mixing of mud and water in the reaction tank.

[0005] With the development of technology, cyclone water distribution methods have also appeared in the prior art. For example, CN208561844U discloses an integral cyclone water distributor for an anaerobic tank, wherein one end of the water inlet pipe is closed and the other end is fixedly connected to the water distributor, and the water distributor runs through the bottom of the anaerobic tank. The device is provided with a spiral water inlet pipe and a water spray head on the water inlet pipe. The sewage is sprayed into the interior of the anaerobic tank through the water spray head, thereby solving the problem of dead corners in traditional anaerobic tanks and allowing the sprayed sewage to fully contact with the sludge. For example, patent CN116119820B also discloses a point-to-point rotary mixing anaerobic water distribution device, which includes an outer cylinder, an inner cylinder, a rotating disk, a water distribution pipe and other structures, wherein a rotatable central shaft is provided in the inner cylinder, 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 movements to achieve uniform water distribution. In addition, each water distribution pipe moves along the arc groove. In this way, with the mutual cooperation of the inner and outer arc grooves, the spacing between the water distribution pipes always remains evenly expanded, thereby ensuring the uniformity of water distribution.

[0006] However, the above structures all require rotary power drive and are relatively complex in structure. They are difficult to apply to large-volume anaerobic tank devices with large water treatment volumes. Anaerobic tanks generally require a high height and are located at the front end of the sewage treatment system. Therefore, large-volume anaerobic tank equipment usually uses a fully underground concrete tank body, which requires a large amount of earth excavation. In areas with high groundwater levels, precipitation measures are also required, which makes construction difficult and costly. In addition, the effluent from the fully underground anaerobic tank often needs to be lifted twice, which results in disadvantages such as high power consumption and high operating costs. Summary of the invention

[0007] The purpose of the present invention is to provide a steel structure anaerobic tank sewage treatment device with uniform water distribution and high efficiency anti-clogging, which can achieve uniform water distribution over a large area and can effectively prevent blockage, and at the same time can flexibly adjust the hydraulic load of the water inlet and ensure sufficient contact between mud and water, thereby ensuring the reaction efficiency, and is easy to install while also reducing the equipment construction and operation costs.

[0008] The objective of the present invention is achieved through the following technical solutions:

[0009] A uniformly distributed water efficient anti-clogging steel structure type anaerobic tank sewage treatment device comprises an anaerobic tank body, and the inside of the anaerobic tank body is sequentially provided with a water inlet unit, a three-phase separation unit and a reaction chamber from top to bottom, wherein the water inlet unit comprises a water inlet ring group and a water distribution ring, the water inlet ring group comprises an inner water inlet ring and an outer water inlet ring, and the inner water inlet ring, the outer water inlet ring and the water distribution ring are concentrically arranged from inside to outside, the inside of the water distribution ring is divided into an inner water inlet ring cavity and an outer water outlet ring cavity by a water weir plate, and the outer water inlet ring is divided into an inner water inlet ring cavity and an outer water outlet ring cavity by a water weir plate, and the outer water inlet ring is divided into an inner water inlet ring cavity and an outer water outlet ring cavity by a water weir plate, and the inner ... A water distribution pipe arranged along the circumferential direction is connected to the water inlet annular cavity, a plurality of water distribution end pipes are arranged inside the water outlet annular cavity along the circumferential direction, and a water distribution output pipe is arranged at the lower end of each water distribution end pipe to be connected to the bottom of the reaction cavity, a water reflux regulating component is arranged at the upper end of the reaction cavity, and the water reflux regulating component is connected to the water inlet inner ring through a reflux pipeline, a water outlet groove is arranged on the inner wall of the anaerobic tank between the water inlet unit and the three-phase separation unit, and a separation exhaust pipe is arranged at the upper end of the three-phase separation unit.

[0010] A water inlet support frame is provided at the upper end of the anaerobic tank body, and the water inlet unit is installed on the water inlet support frame, a plurality of 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 body, 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.

[0011] A water-pass regulating weir plate is arranged on the upper end of the water-pass weir plate.

[0012] A reflective cone is provided at the bottom of the reaction chamber, and the lower end outlets of each water distribution output pipe are respectively aligned with the corresponding reflective cone.

[0013] A plurality of rows of separation triangular plates are arranged inside the three-phase separation unit along the height direction, and the upper sealed corner ends of the separation triangular plates form air cavities. A gas collecting chamber is arranged in the middle of the three-phase separation unit. The separation triangular plates are arranged in parallel and the internal air cavities are connected to the gas collecting chamber. A separation exhaust pipe is arranged on the upper side of the gas collecting chamber to connect with the gas collection assembly.

[0014] The three-phase separation unit is arranged in a separation unit frame, and the separation unit frame is arranged in the anaerobic tank body. The separation unit frame is provided with an upper separation unit frame on the upper side and a lower separation unit frame on the lower side, and a water reflux regulating component is arranged on the lower side of the lower separation unit frame. In addition, a separation support column is arranged in the anaerobic tank body, and the upper end of the separation support column is fixedly connected to the lower separation unit frame.

[0015] The water volume reflux regulating component includes a regulating reflux main pipe and a regulating reflux branch pipe, wherein each regulating reflux branch pipe is connected to the regulating reflux main pipe, and the water inlet end of each regulating reflux branch pipe is distributed to form a circular shape, the regulating reflux main pipe is connected to the water inlet inner ring through a reflux pipeline, and a reflux pump is provided on the reflux pipeline.

[0016] A mud discharge assembly is provided at the lower end of the reaction chamber, and the mud discharge assembly includes a mud discharge main pipe and mud discharge branch pipes, each mud discharge branch pipe is connected to the mud discharge main pipe, and the mud discharge main pipe is connected to the mud discharge pipeline outside the anaerobic tank body.

[0017] The reaction chamber is provided with a sampling assembly, which includes a plurality of reaction sampling tubes, each of which is fixed to the inner wall of the reaction chamber through a sampling tube fixing seat, and each of the reaction sampling tubes has a different sampling tube opening height in the reaction chamber, and each of the reaction sampling tubes is arranged at an upper side of a sampling slot.

[0018] The water outlet trough comprises a vertically arranged water outlet bottom plate and a water outlet vertical plate, wherein the water outlet bottom plate is fixedly arranged on the inner wall of the anaerobic tank body, and a water outlet regulating weir plate is arranged on the upper end of the water outlet vertical plate.

[0019] The advantages and positive effects of the present invention are:

[0020] 1. The water inlet unit of the present invention can realize uniform water distribution over a large area, is particularly suitable for anaerobic equipment with large volume and large amount of treated water, and can realize efficient anti-blocking function.

[0021] 2. A water weir plate is provided inside the water distribution ring of the water inlet unit of the present invention, which can ensure that the incoming water flows evenly into the water outlet ring cavity. At the same time, a water regulating weir plate can be provided on the water weir plate for adjustment according to actual needs. While ensuring the leveling of the water weir and uniform water outlet, the water outlet volume can also be flexibly adjusted.

[0022] 3. The present invention utilizes a water reflux regulating component to extract relatively clear water from the upper end of the reaction chamber and output it back to the water inlet inner ring of the water inlet unit to be fully mixed with the incoming water, and then recirculates the water and outputs it to the bottom of the reaction chamber, which can play a role in regulating the hydraulic load of the incoming water. The present invention can ensure that under different water inlet conditions, the rising flow rate of the mud-water mixture at the bottom of the tank is stable and meets the treatment requirements by controlling the circulating reflux water volume.

[0023] 4. The present invention provides a reflective cone at the bottom of the reaction chamber, and the lower end outlets of each water distribution output pipe are respectively aligned with the corresponding reflective cone, so that the water output by the water distribution output pipe automatically returns upward through the diffuse reflection effect of the reflection cone. In addition, since the present invention has a plurality of water distribution output pipes that are relatively densely distributed along the circumferential direction, combined with the position design of the water distribution ring in the tank body, the water flow can interact with each other to form a mixed flow effect during the process of diffuse reflection upward flow, thereby ensuring full contact between mud and water. At the same time, the diffuse reflection effect of the reflection cone reflecting all around can also avoid the problem of dead angles at the bottom of the anaerobic tank.

[0024] 5. The water inlet support frame, separation unit frame, etc. of the present invention are all made of steel structure and have a modular design, which is convenient for installation, disassembly, cleaning and dredging. At the same time, since there is no need to carry out large-scale excavation and other work, the construction period can be shortened. In addition to the reflux pump, the entire device is not equipped with other power devices, and the reflux pump only drives a relatively small amount of water to reflux to achieve hydraulic load regulation. Therefore, the power energy consumption of the present invention is greatly reduced and the operating cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention,

[0026] Figure 2 This is a schematic diagram of the flow of water, mud and gas when the present invention is working.

[0027] Figure 3 for Figure 1 The structural diagram of the water inlet unit.

[0028] Figure 4 for Figure 3 Schematic diagram of the three-dimensional structure of the water inlet unit.

[0029] Figure 5 for Figure 3 Another perspective diagram of the three-dimensional structure of the water inlet unit.

[0030] Figure 6 for Figure 3 A magnified cross-section of the water ring.

[0031] Figure 7 for Figure 6 The main view of the middle water regulating weir plate.

[0032] Figure 8 for Figure 1 Enlarged view of the separation triangle plate in the three-phase separation unit,

[0033] Fig. 9 for Figure 2 AA view in

[0034] Fig.10 for Figure 2 In the BB view,

[0035] Fig.11 for Figure 2 In the CC view,

[0036] Fig.12 for Fig.11 Installation diagram of the reaction sampling tube.

[0037] Fig.13 for Figure 1 Enlarged schematic diagram of the middle outlet trough.

[0038] Among them, 1 is the water inlet unit, 101 is the water inlet ring group, 1011 is the water inlet inner ring, 1012 is the water inlet outer 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 long 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 separation unit upper frame, 203 is the separation unit lower frame, 2031 is the first beam, 2032 is the second crossbeam, 204 is the separation support column, 205 is the gas collecting chamber, 2051 is the column through hole, 2052 is the separation exhaust pipe, 3 is the reaction chamber, 301 is the reflection cone, 4 is the water outlet trough, 401 is the water outlet 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 collecting component, 601 is the gas-liquid separator, 602 is the air outlet pipe, 7 is the water reflux regulating component, 701 is the regulating reflux main pipe, 702 is the regulating reflux branch pipe, 8 is the mud discharge component, 801 is the mud discharge main pipe, 802 is the mud discharge branch pipe, 9 is the sampling component, 901 is the reaction sampling tube, 902 is the sampling trough, 903 is the sampling trough drainage pipe, 904 is the sampling tube mouth, and 905 is the sampling tube fixing seat. DETAILED DESCRIPTION

[0039] The present invention will be further described below in conjunction with the accompanying drawings.

[0040] like Figures 1 to 13 As shown, the present invention includes an anaerobic tank, and the inside of the anaerobic tank is provided with a water inlet unit 1, a three-phase separation unit 2 and a reaction chamber 3 from top to bottom, wherein Figures 3 to 5As shown, the water inlet unit 1 includes a water inlet ring group 101 and a water distribution ring 103, the water inlet ring group 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 interior of 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 water weir plate 1031, the water inlet outer ring 1012 is connected to the water inlet ring cavity 1033 through a water distribution pipe 102 uniformly distributed along the circumferential direction, the interior of the water outlet ring cavity 1034 is uniformly provided with a plurality of water distribution end pipes 1032 along the circumferential direction, and the lower end of each water distribution end pipe 1032 is provided with a water distribution output pipe 104 connected to the bottom of the reaction chamber 3, as shown Figure 2 As shown, a water reflux regulating component 7 is provided at the upper end of the reaction chamber 3, and the water reflux regulating component 7 is connected to the water inlet inner ring 1011 through a reflux pipeline. Figure 1 As shown, a water outlet trough 4 is provided on the inner wall of the anaerobic tank between the water inlet unit 1 and the three-phase separation unit 2 , and a separation exhaust pipe 2052 is provided at the upper end of the three-phase separation unit 2 to connect with the gas collection assembly 6 .

[0041] like Figure 2 As shown, when the present invention is working, the incoming water first flows into the water inlet inner ring 1011, and then overflows into the water inlet outer ring 1012, and flows evenly into the water inlet ring cavity 1033 of the water distribution ring 103 through each water distribution pipe 102, and then overflows the water weir plate 1031 and flows into the water outlet ring cavity 1034 of the water distribution ring 103, and finally flows directly to the bottom of the reaction chamber 3 through each water distribution end pipe 1032 and the water distribution output pipe 104.

[0042] The present invention can firstly realize uniform water distribution over a large area through the above-mentioned design, and is particularly suitable for anaerobic equipment with large volume and large amount of treated water, wherein the inlet water overflows from the inlet inner ring 1011 into the inlet outer ring 1012, and then flows into each water distribution pipe 102, which can realize the purpose of rapid and uniform water distribution, and the inlet water overflows from the inlet ring cavity 1033 of the water distribution ring 103 into the outlet ring cavity 1034, which can realize the purpose of rapid and uniform water distribution, and the inlet outer ring 1012 and the water distribution ring 103 are both annular channels. The water distribution pipe 102 has a relatively large diameter to meet the requirement of rapid water distribution, which greatly reduces the possibility of impurities in the water blocking the pipeline. Each water distribution output pipe 104 is arranged along the height direction of the anaerobic tank body. Therefore, even if there are impurities remaining in the water, they can flow into the anaerobic tank body under the dual effects of gravity and water flow without clogging. Therefore, in addition to utilizing the water inlet ring group 101 and the water distribution ring 103 in the water inlet unit 1 to achieve large-area uniform water distribution, the present invention can also achieve a high-efficiency anti-blocking function for the water distribution pipeline.

[0043] like Figures 1-2 As shown, the upper opening of the inner water entry ring 1011 is lower than the upper opening of the outer water entry ring 1012 .

[0044] like Figures 1-2 As shown, in this embodiment, a water inlet support frame 105 is provided at the upper end of the anaerobic tank body, the water inlet unit 1 is installed on the water inlet support frame 105, and a cover plate 5 is provided on the upper side of the water inlet unit 1 to ensure the internal sealing of the tank body.

[0045] like Figures 1-2 As shown, in this embodiment, a plurality of water inlet support vertical beams 106 are provided between the water inlet support frame 105 and the three-phase separation unit 2 to realize auxiliary support of the water inlet support frame 105. In addition, a water inlet support column 107 is provided in the middle of the anaerobic tank body, 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 to realize auxiliary support of the water inlet support frame 105.

[0046] like Figures 6-7 As shown, a water-passing regulating weir plate 1035 can be provided on the water-passing regulating weir plate 1031 inside the water distribution ring 103 according to actual needs. In this embodiment, an adjusting long hole 10351 is provided at the lower end of the water-passing regulating weir plate 1035 along the vertical direction, and 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 long 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 sealing, so that 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.

[0047] like Figures 1-2 As shown, in this embodiment, a reflective cone 301 is provided at the bottom of the reaction chamber 3, and the lower end outlets of each water distribution output pipe 104 are respectively aligned with the corresponding reflective cone 301. Figure 2 As shown, the water output by the water distribution output pipe 104 automatically flows back upward through the diffuse reflection effect of the reflection cone 301 reflected all around, and the present invention has a plurality of water distribution output pipes 104 arranged along the circumferential direction and distributed relatively densely, and combined with the position setting of the water distribution ring 103 in the tank body, the water flow can interact with each other to form a mixed flow effect during the process of diffuse reflection upward flow, thereby ensuring that the mud and water are fully in contact. At the same time, the diffuse reflection effect of the reflection cone 301 reflected all around can also avoid the problem of dead angles at the bottom of the anaerobic tank.

[0048] like Figures 1-2 and Figures 8-9 As shown, in this embodiment, the three-phase separation unit 2 is provided with multiple rows of separation triangle plates 201 along the height direction, wherein Figure 8 As shown, each separated triangle plate 201 has an upper sealed corner end to form an air cavity 2011, as shown in FIG. Fig. 9 As shown, the three-phase separation unit 2 is provided with a gas collecting chamber 205 in the middle, and each separation triangle plate 201 is arranged in parallel and the internal air cavity 2011 is connected to the gas collecting chamber 205. Figure 1 As shown, a separate exhaust pipe 2052 is provided on the upper side of the gas collecting chamber 205 and is connected to the gas collecting assembly 6. Figure 2 As shown, when the present invention is working, after the water flow is reflected by the reflecting cone 301 and flows upward, when the water flow contacts the separation triangle plate 201, the sludge impurities and the like are blocked by the separation triangle plate 201 and precipitated at the bottom of the reaction chamber 3 under the action of gravity. After passing through each separation triangle plate 201, the water flow flows into the cavity between the three-phase separation unit 2 and the water inlet unit 1, and finally overflows into the water outlet tank 4 for discharge. Figure 8 As shown, the gas in the water is blocked by the separation triangle plate 201 and concentrated in the air cavity 2011 formed at the upper corner of the separation triangle plate 201, and as shown in FIG. Fig. 9 As shown, the gas finally converges into the gas collecting chamber 205 and is discharged into the gas collection assembly 6 through the separate exhaust pipe 2052 .

[0049] like Figures 1-2 As shown, in this embodiment, the three-phase separation unit 2 is arranged in a separation unit frame, and the separation unit frame is arranged in the anaerobic tank body, wherein the water inlet support vertical beam 106 is provided on the upper side of the separation unit upper frame 202 of the separation unit frame, and the water volume return flow regulating component 7 is provided on the lower side of the separation unit lower frame 203 of the separation unit frame, and in addition, a separation support column 204 is provided in the anaerobic tank body, and the upper end of the separation support column 204 is fixedly connected to the separation unit lower frame 203 to achieve auxiliary support.

[0050] like Fig.10 As shown, in this embodiment, the separation unit upper frame 202 and the separation unit lower frame 203 have the same structure, both including a first crossbeam 2031 and a second crossbeam 2032 arranged vertically and crosswise, so as to ensure support without affecting the flow of water.

[0051] like Fig. 9 As shown, in this embodiment, a column through hole 2051 is provided in the middle of the air collecting chamber 205 , 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 .

[0052] like Figure 1As shown, in this embodiment, the gas collection assembly 6 includes a gas-liquid separator 601 and an air outlet pipe 602, and the separation exhaust pipe 2052, the gas-liquid separator 601 and the air outlet pipe 602 are connected in sequence, and the gas output from the gas collecting chamber 205 flows into the water seal tank through the air outlet pipe 602 after further gas-liquid separation in the gas-liquid separator 601, and the gas-liquid separator 601 is a well-known technology in the art and is a commercially available product.

[0053] like Figure 2 and Fig.10 As shown, in this embodiment, the water reflux regulating component 7 is arranged on the lower side of the separation unit lower frame 203, wherein the water reflux regulating component 7 includes a regulating reflux main pipe 701 and a regulating reflux branch pipe 702, each regulating reflux branch pipe 702 is connected to the regulating reflux main pipe 701, and the water inlet end of each regulating reflux branch pipe 702 forms a circular shape, the regulating reflux main pipe 701 is installed on the corresponding first cross beam 2031 of the separation unit lower frame 203, and each regulating reflux branch pipe 702 is respectively installed on the corresponding second cross beam 2032 of the separation unit lower frame 203, the regulating reflux main pipe 701 is connected to the water inlet inner ring 1011 through a reflux pipeline, and a reflux pump is provided on the reflux pipeline.

[0054] like Figure 1 As shown, the lower end of the reaction chamber 3 is provided with a mud discharge assembly 8 for discharging the mud at the bottom of the tank. Fig.11 As shown, in this embodiment, the mud discharge assembly 8 includes a mud discharge main pipe 801 and a mud discharge branch pipe 802, each mud discharge branch pipe 802 is connected to the mud discharge main pipe 801, and the mud discharge main pipe 801 is connected to the mud discharge pipeline outside the anaerobic tank.

[0055] like Figures 11-12 As shown, in this embodiment, the reaction chamber 3 is further provided with a sampling assembly 9, and the sampling assembly 9 includes a plurality of reaction sampling tubes 901, such as Fig.12 As shown, each reaction sampling tube 901 is fixed to the inner wall of the reaction chamber 3 through a sampling tube fixing seat 905, and the sampling tube opening 904 of each reaction sampling tube 901 in the reaction chamber 3 is at a different height, so that water samples at different heights can be taken for detection.

[0056] like Fig.11 As shown, the output end of each reaction sampling tube 901 is arranged on the upper side of a sampling slot 902 to prevent the sample liquid from scattering around. The sampling slot 902 is connected to the output end of the mud discharge main pipe 801 through a sampling slot drain pipe 903 to discharge the liquid in the slot.

[0057] like Figure 1 and Fig.13As 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, wherein the water outlet bottom plate 402 is fixedly arranged on the inner wall of the anaerobic tank body, and the outlet water overflows into the water outlet trough 4 from the upper end of the water outlet vertical plate 401, so that uniform water outlet can be ensured. In addition, a water outlet regulating weir plate 403 can be arranged on the upper end of the water outlet vertical plate 401 according to actual needs, and the structure and working principle of the water outlet regulating weir plate 403 are the same as those of the water overflow regulating weir plate 1035.

[0058] The working principle of the present invention is:

[0059] like Figure 2 As shown, when the present invention is working, the incoming water first flows into the water inlet inner ring 1011, and then overflows into the water inlet outer ring 1012, and flows evenly into the water inlet ring cavity 1033 of the water distribution ring 103 through each water distribution pipe 102, and then overflows the water weir plate 1031 and flows into the water outlet ring cavity 1034 of the water distribution ring 103, and finally flows to the bottom of the reaction chamber 3 through each water distribution end pipe 1032 and the water distribution output pipe 104, and the water flow output by the water distribution output pipe 104 bends upward under the diffuse reflection action of the reflection cone plate 301 at the bottom of the reaction chamber 3 until it enters the three-phase separation unit 2 to realize the three-phase separation of gas, water and mud, wherein the sludge impurities are precipitated at the bottom of the reaction chamber 3 under the obstruction of the separation triangle plate 201 and the action of gravity, the water flow flows upward through the gaps between the separation triangle plates 201, and finally overflows into the water outlet trough 4 for discharge, and the gas is as Figure 8 As shown, the gas is retained in the air cavity 2011 formed by the sealed corner end of the separation triangle plate 201, and then flows into the gas collecting chamber 205 in the middle of the three-phase separation unit 2, and finally enters the gas collection assembly 6 through the separation exhaust pipe 2052. Figure 2 As shown, the present invention is provided with a water reflux regulating component 7 at the upper end of the reaction chamber 3, and a mud discharge component 8 at the lower end of the reaction chamber 3, wherein the water reflux regulating component 7 is connected with the water inlet inner ring 1011 in the water inlet unit 1 through a reflux pipeline to adjust the water inlet hydraulic load. The present invention can ensure that under different water inlet conditions, the rising flow rate of the mud-water mixture at the bottom of the tank is stable and meets the treatment requirements by controlling the circulating reflux water volume.

Claims

1. A uniform water distribution and high efficiency anti-blocking steel structure anaerobic tank sewage treatment device, characterized by: The invention comprises an anaerobic tank body, wherein a water inlet unit (1), a three-phase separation unit (2) and a reaction chamber (3) are sequentially arranged inside the anaerobic tank body from top to bottom, wherein the water inlet unit (1) comprises a water inlet ring group (101) and a water distribution ring (103), the water inlet ring group (101) comprises 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 inside to outside, the inside of 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 water weir plate (1031), and the outer water inlet ring (1012) is divided into an inner water inlet ring cavity (1033) and an outer water outlet ring cavity (1034) by a water weir plate (1031) along the circumference. A water distribution pipe (102) arranged in a direction parallel to the water inlet annular cavity (1033) is connected to the water outlet annular cavity (1034); a plurality of water distribution end pipes (1032) are arranged inside the water outlet annular cavity (1034) along the circumferential direction; and a water distribution output pipe (104) is arranged at the lower end of each water distribution end pipe (1032) and is connected to the bottom of the reaction cavity (3); a water volume return flow regulating component (7) is arranged at the upper end of the reaction cavity (3); and the water volume return flow regulating component (7) is connected to the water inlet inner ring (1011) through a return line; a water outlet groove (4) is arranged on the inner wall of the anaerobic tank between the water inlet unit (1) and the three-phase separation unit (2); and a separation exhaust pipe (2052) is arranged at the upper end of the three-phase separation unit (2).

2. The uniform water distribution and high efficiency anti-blocking steel structure anaerobic tank sewage treatment device according to claim 1 is characterized by: A water inlet support frame (105) is provided at the upper end of the anaerobic tank body, and the water inlet unit (1) is installed on the water inlet support frame (105), a plurality of water inlet support vertical 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 at the middle of the anaerobic tank body, 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 and high efficiency anti-blocking steel structure anaerobic tank sewage treatment device according to claim 1 is characterized by: A water-pass regulating weir plate (1035) is provided at the upper end of the water-pass weir plate (1031).

4. The uniform water distribution and high efficiency anti-blocking steel structure anaerobic tank sewage treatment device according to claim 1 is characterized by: A reflective cone (301) is provided at the bottom of the reaction chamber (3), and the lower end outlets of each water distribution output pipe (104) are respectively aligned with the corresponding reflective cone (301).

5. The uniform water distribution and high efficiency anti-blocking steel structure anaerobic tank sewage treatment device according to claim 1 is characterized by: The three-phase separation unit (2) is provided with a plurality of rows of separation triangular plates (201) along the height direction inside, and the upper sealed corner ends of the separation triangular plates (201) form air cavities (2011), and a gas collecting chamber (205) is provided in the middle of the three-phase separation unit (2), and the separation triangular plates (201) are arranged in parallel and the internal air cavities (2011) are all connected to the gas collecting chamber (205), and a separation exhaust pipe (2052) is provided on the upper side of the gas collecting chamber (205) and is connected to the gas collection assembly (6).

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

7. The uniform water distribution and high efficiency anti-blocking steel structure anaerobic tank sewage treatment device according to claim 1 is characterized by: The water volume return flow regulating component (7) comprises a regulating return flow main pipe (701) and a regulating return flow branch pipe (702), wherein each regulating return flow branch pipe (702) is connected to the regulating return flow main pipe (701), and the water inlet ends of each regulating return flow branch pipe (702) are distributed to form a circular shape, the regulating return flow main pipe (701) is connected to the water inlet inner ring (1011) through a return flow pipeline, and a return flow pump is provided on the return flow pipeline.

8. The uniform water distribution and high efficiency anti-blocking steel structure anaerobic tank sewage treatment device according to claim 1 is characterized by: A mud discharge assembly (8) is provided at the lower end of the reaction chamber (3), and the mud discharge assembly (8) comprises a mud discharge main pipe (801) and mud discharge branch pipes (802), each mud discharge branch pipe (802) is connected to the mud discharge main pipe (801), and the mud discharge main pipe (801) is connected to a mud discharge pipeline outside the anaerobic tank.

9. The uniform water distribution and high efficiency anti-blocking steel structure anaerobic tank sewage treatment device according to claim 1 is characterized by: The reaction chamber (3) is provided with a sampling assembly (9), the sampling assembly (9) comprising a plurality of reaction sampling tubes (901), each reaction sampling tube (901) being fixed to the inner wall of the reaction chamber (3) via a sampling tube fixing seat (905), and each reaction sampling tube (901) having a sampling tube opening (904) located in the reaction chamber (3) at a different height, and each reaction sampling tube (901) having an output end arranged on the upper side of a sampling slot (902).

10. The uniform water distribution and high efficiency anti-blocking steel structure anaerobic tank sewage treatment device according to claim 1 is characterized by: The water outlet trough (4) comprises a vertically arranged water outlet bottom plate (402) and a water outlet vertical plate (401), wherein the water outlet bottom plate (402) is fixedly arranged on the inner wall of the anaerobic tank, and a water outlet regulating weir plate (403) is arranged at the upper end of the water outlet vertical plate (401).

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