An upflow sewage treatment anaerobic tower

Abstract

The utility model discloses a kind of upflow sewage treatment anaerobic towers, including tower body, feed pipe is arranged outside tower body, the end of feed pipe is connected with branch pipe, branch pipe is connected with multiple uniform flow cavities, uniform flow cavity side is provided with feed inlet for being connected with branch pipe, uniform flow cavity top is provided with discharge outlet with opening upward for discharging raw material, and multiple uniform flow cavities rectangular array are at tower body bottom.The utility model is arranged with the convex uniform flow cavity of rectangular array distribution at tower body bottom, and it is connected with uniform flow cavity one by one using sinking pipeline, so that sewage is first buffered into uniform flow cavity, then evenly enters reaction zone, effectively avoid the single pipe of water distribution system needs multiple point drainage, reduce the possibility of pipe body blockage.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to an upflow anaerobic wastewater treatment tower. Background Technology

[0002] Upflow anaerobic digester is a highly efficient anaerobic biological treatment technology widely used for treating high-concentration organic wastewater. Its working principle involves wastewater entering from the bottom of the reactor and flowing upwards through a granular sludge bed. Under the action of anaerobic microorganisms, organic matter is degraded, producing biogas (mainly methane and carbon dioxide). The biogas is collected through a three-phase separator at the top, while the treated water is discharged from the top.

[0003] In traditional tower structures, feeding is mainly done through a single point or a small number of feed inlets, which results in low feeding efficiency and affects reaction efficiency. Therefore, existing technologies incorporate a water distribution system, which involves laying multiple water inlet pipes at the bottom of the tower and distributing water through multiple outlets.

[0004] However, in actual use, due to the small pipe diameter, the sewage flows at a high velocity in the pipe, which can easily cause blockage near the inlet, resulting in the interruption of flow at some outlets. This leads to uneven distribution of sewage inside the reactor, affecting the stability and treatment efficiency of the anaerobic reaction. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model specifically provides the following technical solution:

[0006] An upflow anaerobic wastewater treatment tower includes a tower body, a feed pipe installed inside the tower body, a branch pipe connected to the end of the feed pipe, a plurality of flow equalization chambers connected to the branch pipes, a feed inlet on the side of each flow equalization chamber for connecting to the branch pipes, and an upward-opening discharge outlet at the top of each flow equalization chamber for discharging raw materials. The plurality of flow equalization chambers are arranged in a rectangular array at the bottom of the tower body.

[0007] The feed pipeline feeds the raw materials into the multiple uniform flow chambers individually through the branch pipes, and the multiple uniform flow chambers discharge the raw materials at a fixed point through the discharge port.

[0008] In a preferred embodiment of this utility model, the feed pipeline is connected to the raw material pool via a detachable clamp, and a master control valve is provided inside the feed pipeline. The master control valve is communicatively connected to an external controller, which is used to control the opening and closing of the master control valve.

[0009] As a preferred embodiment of this utility model, the branch pipe includes multiple branch pipe heads connected to the feed pipe, each branch pipe head is provided with multiple branch pipe ports, each branch pipe port is connected to a sinking pipe, and each sinking pipe is connected to the flow equalization cavity.

[0010] As a preferred embodiment of this utility model, each of the sinking pipes is connected to each uniform flow cavity of the rectangular array at the bottom of the tower body in a one-to-one correspondence.

[0011] Multiple sinking pipes are inserted into the flow equalization cavity at the beginning of each column at the bottom of the tower body, and extend sequentially into each flow equalization cavity in the column to form point-to-point material conveying.

[0012] As a preferred embodiment of this utility model, the end of the sinking pipe is provided with a four-way connector, and the two outlets of the four-way connector are respectively connected to two auxiliary pipes. Each sinking pipe is connected to one of the flow equalization chambers and is connected to two adjacent flow equalization chambers through the auxiliary pipes to perform L-shaped cluster control material conveying operation.

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] This invention utilizes a rectangular array of raised flow equalization cavities at the bottom of the tower, with each cavity connected to a corresponding submerged pipe. This allows wastewater to first enter the equalization cavities for buffering before uniformly entering the reaction zone, effectively avoiding the need for multiple drainage points in a single pipe of the water distribution system and reducing the possibility of pipe blockage. Simultaneously, a secondary pipe is added at the outlet of the submerged pipe, forming an L-shaped clustered conveying structure with the adjacent equalization cavities. This reduces the number of independent pipes, optimizes the pipeline layout, and further reduces the risk of localized blockage through the diversion design. This significantly improves the uniformity of wastewater distribution and the stability of system operation, while simplifying maintenance and enhancing the overall reliability and processing efficiency. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the internal structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the branch circuit structure of this utility model.

[0018] The labels in the diagram represent the following:

[0019] 1. Tower body; 2. Feed pipeline; 3. Branch pipeline; 4. Uniform flow chamber; 5. Feed inlet; 6. Discharge outlet; 7. Branch pipe head; 8. Submerged pipeline; 9. Four-way connector; 10. Secondary pipeline; 11. Removable clamp; 12. Gas-liquid-solid three-phase separator. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1 to 2 As shown, this utility model provides an upflow anaerobic wastewater treatment tower, including a tower body 1, which is cylindrical or rectangular in shape and internally used to contain wastewater for anaerobic microbial treatment. The tower body 1 has a water distribution system at the bottom, a granular sludge reaction zone in the middle, and a gas-liquid-solid three-phase separator 12 and a biogas collection chamber at the top. An inlet pipe 2 is installed inside the tower body 1, made of corrosion-resistant high-strength PVC or stainless steel to ensure sufficient conveying capacity. Branch pipes 3 are connected to the ends of the inlet pipe 2. Each branch pipe consists of multiple branch pipes, each connected to the inlet pipe 2 by welding or flange connection. Multiple flow equalization chambers 4 are further connected to the branch pipes 3. The branch pipes and flow equalization chambers 4 form the water distribution system at the bottom of the tower body 1. The flow equalization chambers 4 are cylindrical or rectangular and made of the same material as the inlet pipe 2 to ensure corrosion resistance. Each flow equalization chamber 4 has a feed inlet 5 on its side, which is sealed to the branch pipe 3 via a threaded connection or quick connector to achieve a stable wastewater input. The top of each flow equalization chamber 4 has an upward-facing discharge port 6, ensuring that the raw material (wastewater) enters the tower body 1 in an upward flow manner. Multiple flow equalization chambers 4 are evenly distributed at the bottom of the tower body 1 in a rectangular array, for example, in a 6×9 array as shown in the figure, to ensure uniform distribution of wastewater at the bottom of the reactor.

[0022] During operation, feed pipe 2 feeds each uniform flow chamber 4 individually through branch pipes 3, and wastewater is discharged at a fixed point through the discharge port 6 of the uniform flow chamber 4. Due to the rectangular array distribution and fixed-point discharge design of the uniform flow chamber 4, wastewater enters the uniform flow chamber 4 after being discharged from the pipe body and accumulates. The large volume of the uniform flow chamber 4 can hold more wastewater, which is then discharged through the discharge port 6. This avoids blockage in the pipe due to lack of material. Furthermore, the rectangular array arrangement of multiple uniform flow discharge ports 6 makes the wastewater enter the granular sludge reaction zone more orderly, resulting in more uniform wastewater treatment and thus improving the stability and treatment efficiency of the anaerobic reaction.

[0023] Furthermore, the feed line 2 is connected to the raw material tank via a detachable clamp 11. The detachable clamp 11 adopts a standardized quick-connect design, such as a clamp-type or flange-type connection, for easy installation and disassembly, maintenance, and cleaning. The raw material tank is a container for storing wastewater to be treated, made of concrete or stainless steel. A main control valve is installed inside the feed line 2. The main control valve is an electric ball valve or a solenoid valve, with a valve diameter matched to the feed line 2. The main control valve communicates with an external controller via a signal line or a wireless communication module (such as Wi-Fi or Bluetooth). The controller adopts a PLC (Programmable Logic Controller) or microcontroller control system, with a built-in program used to control the opening and closing of the main control valve according to the processing requirements. For example, the controller can adjust the opening of the main control valve based on the signal feedback from the level sensor or flow sensor of the tower body 1 to avoid excessive feed leading to excessively high or uneven pressure distribution inside the reactor.

[0024] With the cooperation of the detachable clamp 11 and the main control valve, the system can achieve flexible feeding control and maintenance, solve the problem of flow interruption caused by pipeline blockage in the background technology, and improve the system's automation level and operational stability.

[0025] Furthermore, the branch pipe 3 includes multiple branch pipe heads 7, each of which is connected to the feed pipe 2 via threads or flanges. Each branch pipe head 7 is equipped with multiple branch pipe ports to meet the needs of multi-point diversion. Each branch pipe port is connected to a sink pipe 8, which is connected to the branch pipe port by welding or threading and extends from the bottom surface of the tower body 1 to the flow equalization chamber 4 at the bottom of the tower body 1. The end of each sink pipe 8 is connected to the feed inlet 5 of the flow equalization chamber 4 to ensure that sewage can smoothly enter the flow equalization chamber 4.

[0026] By setting up the branch pipe head 7 and the sinking pipe 8, the branch pipe branch 3 can evenly distribute the sewage from the feed pipe 2 to multiple flow equalization chambers 4, avoiding the blockage problem caused by excessive flow velocity when transporting through a single pipe, thereby further optimizing the uniformity of sewage distribution.

[0027] Each submerged pipe 8 is connected one-to-one with each uniform flow chamber 4 of the rectangular array at the bottom of the tower body 1. Specifically, multiple submerged pipes 8 are inserted into the uniform flow chamber 4 at the beginning of each column at the bottom of the tower body 1, and extend through the pipes to each uniform flow chamber 4 in the column. For example, in a 6×9 array, the branch pipe 3 has 9 branch pipe heads 7 corresponding to 9 columns. Each branch pipe head 7 has 6 branch pipe openings connecting to 6 submerged pipes 8 corresponding to the 6 uniform flow chambers 4 in each column. The 6 submerged pipes 8 enter from the uniform flow chamber 4 at the beginning of the column and connect sequentially to the 6 uniform flow chambers 4 in that column in varying lengths, forming a point-to-point material conveying path. This point-to-point material conveying design ensures that each uniform flow chamber 4 receives an equal amount of wastewater, avoiding the problem of partial outlet interruption caused by pipe blockage in the prior art, thus ensuring the uniformity of wastewater distribution inside the tower body 1 and the stability of anaerobic treatment.

[0028] Furthermore, to avoid having too many sinking pipes 8 in actual use, thus increasing manufacturing costs and improving maintenance efficiency, a four-way connector 9 is further provided at the end of the sinking pipe 8. The four-way connector 9 is a cross-shaped joint. Figure 2 As shown, each four-way connector 9 has one outlet connected to its own submerged pipe 8. One outlet is located within the flow equalization chamber 4 where the submerged pipe 8 is located. The other two outlets are connected to two auxiliary pipes 10, which are connected to two adjacent flow equalization chambers 4, forming an L-shaped cluster-controlled material conveying operation. This L-shaped connection network reduces the number of submerged pipes 8 used, lowering the setup and maintenance costs of the device.

[0029] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. An upflow anaerobic wastewater treatment tower, characterized in that, The tower includes a tower body (1), a feed pipe (2) is provided inside the tower body (1), a branch pipe (3) is connected to the end of the feed pipe (2), a plurality of flow equalization chambers (4) are connected to the branch pipe (3), a feed inlet (5) is provided on the side of the flow equalization chamber (4) for connecting to the branch pipe (3), and an upward-opening discharge port (6) is provided at the top of the flow equalization chamber (4) for discharging raw materials. A plurality of flow equalization chambers (4) are arranged in a rectangular array at the bottom of the tower body (1). The feed pipe (2) feeds the multiple uniform flow chambers (4) individually through the branch pipe (3), and the multiple uniform flow chambers (4) discharge the raw materials at a fixed point through the discharge port (6).

2. The upflow anaerobic wastewater treatment tower according to claim 1, characterized in that: The feed pipe (2) is connected to the raw material pool through a detachable clamp (11). A main control valve is provided in the feed pipe (2). The main control valve is connected to an external controller. The controller is used to control the opening and closing of the main control valve.

3. The upflow anaerobic wastewater treatment tower according to claim 1, characterized in that: The branch pipe (3) includes multiple branch pipe heads (7) connected to the feed pipe (2). Each branch pipe head (7) is provided with multiple branch pipe ports. Each branch pipe port is connected to a sinking pipe (8). Each sinking pipe (8) is connected to the flow equalization chamber (4).

4. The upflow anaerobic wastewater treatment tower according to claim 3, characterized in that: Each of the sinking pipes (8) is connected one-to-one with each uniform flow cavity (4) of the rectangular array at the bottom of the tower body (1); Multiple sinking pipes (8) are inserted into the flow equalization cavity (4) at the bottom of each column of the tower body (1) and extend sequentially into each flow equalization cavity (4) in the column to form point-to-point material conveying.

5. The upflow anaerobic wastewater treatment tower according to claim 4, characterized in that: The end of the sinking pipe (8) is provided with a four-way head (9), and the two outlets of the four-way head (9) are respectively connected to two auxiliary pipes (10). Each sinking pipe (8) is connected to one of the flow equalization chambers (4) and connected to two adjacent flow equalization chambers (4) through the auxiliary pipes (10) to perform L-shaped cluster control material conveying operation.

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