Sewage collection transfer pond and fishpond

Abstract

The sewage collection transfer pond comprises a pond body, a liquid feeding pipe and a sludge discharging pipeline, the liquid outlet end of the liquid feeding pipe is located in the pond body, the liquid inlet end of the liquid feeding pipe is located outside the pond body and used for being connected with upstream excrement and sewage mixed liquid generating equipment, a valve is arranged on the liquid feeding pipe, and the sludge discharging pipeline is connected with the sludge discharging pipeline. The valve is used for controlling opening and closing of the liquid feeding pipe; the sludge discharge pipeline comprises a sludge discharge pipeline body and a pumping device, one end of the sludge discharge pipeline body is located in the pond body, the other end of the sludge discharge pipeline body is used for being connected with a downstream excrement and sewage mixed liquid storage or treatment device, and the pumping device is arranged on the sludge discharge pipeline body. And along with the accumulation of the liquid, solid substances in the liquid can be precipitated, so that the content of the solid substances in the excrement mixed liquid discharged to downstream treatment equipment is increased, and subsequent anaerobic fermentation and other treatment processes are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, and in particular to a wastewater transfer pond and a fishpond. Background Technology

[0002] In aquaculture, the aquaculture system typically includes aquaculture ponds and supporting wastewater treatment equipment. In traditional methods, wastewater generated in the aquaculture ponds or other upstream wastewater generating equipment is often directly transported via pipelines to downstream wastewater treatment facilities for processing. However, this direct transport method results in a low concentration of wastewater in the wastewater, which is detrimental to subsequent processes such as anaerobic fermentation that utilize the wastewater. Utility Model Content

[0003] In order to overcome at least one of the defects of the prior art, the present invention provides a sewage transfer pond and a fishpond, which can solve the problem of low concentration of sewage mixture in the existing aquaculture field when it is transported to downstream sewage mixture storage or treatment equipment.

[0004] The technical solution adopted by this utility model to solve its problem is:

[0005] A wastewater transfer tank, comprising:

[0006] Pool body;

[0007] The upper liquid pipe has its outlet end located inside the tank body and its inlet end located outside the tank body. The inlet end of the upper liquid pipe is connected to the upstream fecal sludge generating equipment. The outlet end of the upper liquid pipe is vertically lower than the liquid level of the upstream fecal sludge generating equipment, and the liquid level in the tank body is vertically lower than the liquid level of the upstream fecal sludge generating equipment. The upper liquid pipe is equipped with a valve to control the opening and closing of the upper liquid pipe.

[0008] The sludge discharge pipeline includes a sludge discharge pipe and a pumping device. One end of the sludge discharge pipe is located inside the pool, and the other end is used to connect to downstream fecal wastewater storage or treatment equipment. The pumping device is connected to the sludge discharge pipe to pump the fecal wastewater in the pool into the downstream fecal wastewater storage or treatment equipment.

[0009] By adopting the above scheme and setting up a wastewater collection and transfer tank in the aquaculture system, the mixed liquid of manure generated upstream can be concentrated in this tank. As the liquid accumulates, the solid matter within it will precipitate, thereby increasing the solid content of the mixed liquid discharged to downstream treatment equipment, which is beneficial for subsequent anaerobic fermentation and other treatment processes. The inlet pipe is equipped with valves to control its opening and closing, allowing for selective opening based on the sedimentation concentration of the mixed liquid from the upstream manure-generating equipment. This ensures that only manure mixed liquid with a certain concentration is introduced into the wastewater collection and transfer tank, thus achieving a step-by-step optimization of wastewater collection.

[0010] Furthermore, the extraction device is a submersible sewage pump, which has an inlet and an outlet. The sludge discharge pipe is located at one end of the tank body and is connected to the outlet. The inlet of the submersible sewage pump is close to the bottom of the tank body where fecal matter has settled.

[0011] By adopting the above solution, the submersible pump is specifically designed to handle liquids containing solid particles, effectively transporting high-concentration sewage mixtures from the collection and transfer tank to downstream treatment facilities via sludge discharge pipes. Its powerful suction capacity ensures good operating efficiency even when the liquid contains a significant amount of impurities.

[0012] Furthermore, because submersible pumps are designed to handle solid substances, they are better suited to sewage mixtures containing a higher proportion of solids than ordinary water pumps, reducing the risk of blockages in pipes or pump bodies caused by solids.

[0013] Furthermore, the outlet end of the liquid inlet pipe is located at the middle of the pool body in its height direction.

[0014] By adopting the above solution, placing the upper liquid pipe in the middle of the tank can better balance these two requirements. On the one hand, it can utilize the natural pressure difference generated by the upstream sewage mixture generating equipment to achieve a certain degree of passive transport; on the other hand, compared to placing it directly at the bottom, this position reduces the interference of the new liquid on the already settled substances, helping to maintain the stability of the settled substances in the tank.

[0015] When the inlet pipe is set too high, although it maximizes the use of the pressure generated by the upstream equipment, it may cause newly entering liquid to impact the bottom of the tank at a high velocity, thus agitating the already settled solid particles and affecting sedimentation efficiency. Conversely, if the inlet pipe is set too low, the newly added liquid may directly settle at the bottom of the tank, disturbing the existing sediment layer. Therefore, setting the inlet pipe in the middle allows for better control of the inflow speed and direction of the liquid, reducing disturbance to the existing sediment.

[0016] Furthermore, multiple liquid inlet pipes are provided, and each liquid inlet pipe is equipped with a valve. The connection relationship between the liquid inlet pipe and the upstream sewage mixture generating equipment includes at least one of the following:

[0017] a. Each of the upstream sewage mixture generating devices is connected to multiple liquid inlet pipes;

[0018] b. Each of the upper liquid pipes is connected to multiple upstream sewage mixture generating devices;

[0019] c. Each of the upper liquid pipes is connected to one of the corresponding upstream sewage mixture generating devices.

[0020] By adopting the above scheme, the design of multiple inlet pipes allows for the simultaneous reception of sewage mixture from multiple sources, or the selective use of certain pipes depending on the operating status of upstream equipment. This ensures sufficient inlet volume while avoiding the risk of system downtime due to blockage or other problems in a single pipe, thereby improving overall treatment efficiency.

[0021] Furthermore, the valve is one of a manual valve, an electric valve, or a pneumatic valve. When the valve is a pneumatic valve, the pneumatic valve is connected to an external air source to drive the opening and closing of the pneumatic valve.

[0022] By adopting the above solution, pneumatic valves can be remotely operated through a pneumatic control system. This means that operators can control the valves from locations far from the wastewater transfer tank, thus improving operational convenience. Furthermore, pneumatic systems are generally more reliable than electrical systems, especially in humid or corrosive environments. Pneumatic valves are less susceptible to electromagnetic interference and can maintain their last operating state (open or closed) even in the event of a power outage, thereby enhancing system safety.

[0023] Furthermore, it also includes a fixed base, which is fixedly assembled to the side wall or bottom wall of the pool body, and the sludge discharge pipe and / or the extraction device is fixedly installed on the fixed base.

[0024] By adopting the above solution and fixing the sludge discharge pipe and extraction equipment to the base, the stability of the sludge discharge pipe or extraction equipment can be significantly improved. This helps prevent displacement or damage caused by external factors (such as water flow impact, vibration, etc.) and ensures the long-term stable operation of the system.

[0025] Furthermore, it also includes a slide rail disposed within the pool body, the slide rail being parallel to the axial direction of the pool body, and the extraction device having a chute that slides along the slide rail.

[0026] By adopting the above solution, the slide rail system allows operators to easily adjust the position of the extraction equipment as needed, enabling the extraction equipment to be flexibly moved to the most effective working position according to the actual sedimentation situation or processing requirements, thereby improving processing efficiency.

[0027] More importantly, when it is necessary to clean the inside of the pool or maintain the extraction equipment, the extraction equipment can be easily moved out of the work area along the slide rail, thereby simplifying the maintenance process and reducing the risk of workers coming into direct contact with pollutants.

[0028] Furthermore, the outer wall of the pool is provided with a sleeve for a positioning rod to be inserted inside the sleeve for positioning the pool.

[0029] By adopting the above solution, the vibration generated during the operation of the submersible pump may cause the tank to shift or tilt. By firmly fixing the tank in the predetermined position using a sleeve and positioning rod, this situation can be effectively avoided, ensuring the stability of the tank. Furthermore, for safety reasons, the sleeve is fitted onto the positioning rod to prevent the tank from tilting or moving.

[0030] Furthermore, multiple sleeves are provided, and the multiple sleeves are evenly distributed along the circumference of the outer wall of the pool.

[0031] By adopting the above scheme, and by arranging multiple sleeves evenly around the outer wall of the pool, the overall stability of the pool can be improved, and the risk of deformation or damage caused by excessive local stress can be reduced.

[0032] This utility model also provides a fishpond, including multiple upstream sewage mixture generating devices and downstream sewage mixture storage or treatment devices, as well as the aforementioned sewage collection and transfer tank. The sewage from the multiple upstream sewage mixture generating devices settles and collects in the sewage collection and transfer tank before entering the downstream sewage mixture storage or treatment devices.

[0033] By employing the above-mentioned method, secondary sedimentation in the wastewater transfer tank allows for further sedimentation and accumulation of fecal waste, thereby increasing the concentration of the mixed wastewater entering downstream treatment equipment. This helps improve the efficiency and effectiveness of subsequent treatment processes (such as anaerobic digestion and biological treatment), as high-concentration fecal waste is more suitable for these processes.

[0034] In summary, the wastewater transfer tank and fishpond provided by this utility model have the following technical effects:

[0035] 1. By setting up a wastewater collection and transfer tank in the aquaculture system, the mixed liquid of manure and wastewater generated upstream can be collected in this tank first. As the liquid accumulates, the solid matter in it will precipitate, thereby increasing the solid content of the mixed liquid of manure and wastewater discharged to downstream treatment equipment, which is beneficial to subsequent treatment processes such as anaerobic fermentation;

[0036] 2. The upper liquid pipe is equipped with a valve to control its opening and closing, thereby selectively opening the valve based on the sedimentation concentration of the sewage mixture generated by the upstream sewage mixture generating equipment. This ensures that only sewage mixture with a certain concentration is introduced into the sewage collection and transfer tank, thus achieving a step-by-step optimization of sewage collection.

[0037] 3. The outlet end of the upper liquid pipe is vertically lower than the liquid level of the upstream sewage mixture generating equipment, and the liquid level in the tank is vertically lower than the liquid level of the upstream sewage mixture generating equipment. That is, the liquid level in the upstream sewage mixture generating equipment is higher than the liquid levels in the upper liquid pipe and the tank. Thus, a certain degree of passive transportation is achieved through the natural pressure difference generated by the upstream sewage mixture generating equipment, that is, the sewage mixture in the upstream sewage mixture generating equipment is transferred to the tank through the upper liquid pipe. Attached Figure Description

[0038] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0039] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0040] Figure 3 This is a schematic diagram of the sludge discharge pipeline structure of this utility model;

[0041] Figure 4 This is a schematic diagram of the extraction device of this utility model.

[0042] The meanings of the reference numerals in the attached drawings are as follows: 1. Pool body; 2. Liquid inlet pipe; 21. Valve; 31. Sludge discharge pipe; 32. Extraction equipment; 321. Slide chute; 4. Fixed base; 5. Slide rail; 6. Sleeve. Detailed Implementation

[0043] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described and discussed below with reference to the accompanying drawings. Obviously, what is described here is only a part of the examples of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the protection scope of this invention.

[0044] To facilitate understanding of the embodiments of this utility model, further explanations and descriptions will be provided below with reference to the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of this utility model.

[0045] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0047] See Figures 1-4 This utility model discloses a sewage transfer tank and a fishpond, including a tank body 1, an upper liquid pipe 2, and a sludge discharge pipe. The outlet end of the upper liquid pipe 2 is located inside the tank body 1, and the inlet end of the upper liquid pipe 2 is located outside the tank body 1. The inlet end of the upper liquid pipe 2 is connected to an upstream sewage mixture generating device. The outlet end of the upper liquid pipe 2 is vertically lower than the liquid level of the upstream sewage mixture generating device, and the liquid level in the tank body 1 is vertically lower than the liquid level of the upstream sewage mixture generating device. A valve 21 is provided on the upper liquid pipe 2 to control the opening and closing of the upper liquid pipe 2. The sludge discharge pipe includes a sludge discharge pipe 31 and a suction device 32. One end of the sludge discharge pipe 31 is located inside the tank body 1, and the other end is used to connect to a downstream sewage mixture storage or treatment device. The suction device 32 is connected to the sludge discharge pipe 31 to pump the sewage mixture in the tank body 1 into the downstream sewage mixture storage or treatment device.

[0048] Specifically, tank 1 is used to hold the sewage mixture produced by the upstream sewage mixture generating equipment, further settle the sewage mixture, and then transfer it to the downstream sewage mixture storage or treatment equipment. One end of the upper liquid pipe 2 is located inside tank 1, and the other end is located outside tank 1. The upper liquid pipe 2 located outside tank 1 is used to connect to the upstream sewage mixture generating equipment, allowing the sewage mixture produced by the upstream sewage mixture generating equipment to be transferred to the inside of tank 1 through the upper liquid pipe 2. A valve 21 is installed on the upper liquid pipe 2 to control its opening and closing. This allows for selective opening based on the sedimentation concentration of the sewage mixture from the upstream sewage mixture generating equipment, ensuring that only sewage mixture with a certain concentration is introduced into the sewage collection transfer tank, thereby achieving a step-by-step optimization of sewage collection. The sludge discharge pipeline includes a sludge discharge pipe 31 and an extraction device 32. One end of the sludge discharge pipe 31 is located inside the tank 1, and the other end is used to connect to downstream fecal sludge storage or treatment equipment. That is, the fecal sludge that has undergone further sedimentation in the tank 1 is transported to the downstream fecal sludge storage or treatment equipment through the sludge discharge pipe 31. The extraction device 32 is installed on the sludge discharge pipe 31 to provide power for the sludge discharge pipe 31 to transport high-concentration fecal sludge to the downstream fecal sludge storage or treatment equipment. The outlet end of the upper liquid pipe 2 is vertically lower than the liquid level of the upstream fecal sludge generating equipment, and the liquid level in the tank 1 is vertically lower than the liquid level of the upstream fecal sludge generating equipment. That is, the liquid level in the upstream fecal sludge generating equipment is higher than the liquid levels in the upper liquid pipe 2 and the tank 1. Thus, a certain degree of passive transportation is achieved through the natural pressure difference generated by the upstream fecal sludge generating equipment, that is, the fecal sludge in the upstream fecal sludge generating equipment is transferred to the tank 1 through the upper liquid pipe 2.

[0049] It should be noted that the upstream manure-sewage mixture generating equipment refers to equipment located upstream of the sewage collection and transfer tank that produces manure-sewage mixture. Specifically, this can be equipment such as breeding ponds, nursery ponds, or cleaning areas that may generate manure-sewage mixture; no specific type is limited here. The downstream manure-sewage mixture storage or treatment equipment refers to equipment located downstream of the sewage collection and transfer tank, used for storing or treating the manure-sewage mixture transported from the sewage collection and transfer tank. Specifically, this can be equipment with manure-sewage mixture storage and / or treatment functions, such as storage tanks, storage pools, thickening tanks, and fermentation tanks; no specific type is limited here.

[0050] See Figure 2 and Figure 3 As shown, in some embodiments, the extraction device 32 is a submersible pump with an inlet and an outlet, and the sludge discharge pipe 31 is connected to the outlet at one end inside the pool body 1.

[0051] Specifically, the submersible pump is specially designed to handle liquids containing solid particles, effectively transporting high-concentration sewage mixtures from the collection and transfer tank to downstream treatment facilities via sludge discharge pipe 31. Its powerful suction capacity ensures good operating efficiency even when the liquid contains a large amount of impurities.

[0052] Furthermore, because submersible pumps are designed to handle solid substances, they are better suited to sewage mixtures containing a higher proportion of solids than ordinary water pumps, reducing the risk of blockages in pipes or pump bodies caused by solids.

[0053] Furthermore, it is optimal for the inlet of the submersible pump to face the bottom of the tank body 1, which can improve the pumping effect of the submersible pump on the sewage mixture.

[0054] See Figure 1 and Figure 2 As shown, in some embodiments, the outlet end of the upper liquid pipe 2 is located at the middle of the pool body 1 in its height direction.

[0055] Specifically, placing the upper liquid pipe 2 in the middle of the tank 1 can better balance these two requirements. On the one hand, it can utilize the natural pressure difference generated by the upstream sewage mixture generating equipment to achieve a certain degree of passive transport; on the other hand, compared to placing it directly at the bottom, this position reduces the interference of the new liquid on the already settled substances, helping to maintain the stability of the settled substances in the tank. Therefore, the optimal height for the upper liquid pipe 2 is set at the middle of the tank 1, specifically at 30%-70% of the height of the tank 1.

[0056] Furthermore, if the upper liquid pipe 2 is set too high, although it can maximize the use of the pressure generated by the upstream equipment, it may cause the newly entering liquid to impact the bottom of the tank at a high speed, thereby agitating the already settled solid particles and affecting the sedimentation efficiency. On the other hand, if the upper liquid pipe 2 is too low, the newly added liquid may easily settle directly at the bottom of the tank, disturbing the existing sediment layer. Therefore, setting it in the middle can better control the speed and direction of the flowing liquid and reduce disturbance to the existing sediment.

[0057] See Figure 1 and Figure 2 As shown, in some embodiments, multiple liquid inlet pipes 2 are provided, and each liquid inlet pipe 2 is equipped with a valve 21. The connection relationship between the liquid inlet pipe 2 and the upstream sewage mixture generating equipment includes at least one of the following:

[0058] a. Each upstream sewage mixture generating device is connected to multiple liquid inlet pipes 2;

[0059] b. Each liquid inlet pipe 2 is connected to multiple upstream sewage mixture generating devices;

[0060] c. Each liquid inlet pipe 2 is connected to one of its corresponding upstream sewage mixture generating devices.

[0061] Specifically, the design of multiple inlet pipes 2 allows for simultaneous reception of manure-sewage mixtures from multiple sources. The number of inlet pipes 2 can be determined based on the number or discharge volume of upstream manure-sewage mixture generating equipment. For example, when N breeding ponds are set up, N inlet pipes 2 are correspondingly set up, with each breeding pond connected to one inlet pipe 2 via a pipe, achieving a one-to-one correspondence between each breeding pond and each inlet pipe 2. This allows the manure-sewage mixture from each breeding pond to be introduced into the pond body 1 through the corresponding inlet pipe 2. When a breeding pond requires multiple pipes to output manure-sewage mixtures, the number of inlet pipes 2 can be increased to match the number of breeding ponds. Of course, there are other options for the number of inlet pipes 2, which are not limited here. Alternatively, some pipes can be selectively used based on the operating status of the upstream equipment. This ensures sufficient inflow while avoiding the risk of the entire system shutting down due to blockage or other problems in a single pipe, thereby improving overall treatment efficiency.

[0062] See Figure 1 and Figure 2 As shown, in some embodiments, valve 21 is a manual valve, an electric valve, or a pneumatic valve. When valve 21 is a pneumatic valve, the pneumatic valve is connected to an external air source to drive the opening and closing of the pneumatic valve.

[0063] Specifically, the pneumatic valve can be remotely operated via a pneumatic control system. This means that operators can control the valve 21 from a location far from the wastewater transfer tank, thus improving operational convenience. Furthermore, pneumatic systems are generally more reliable than electrical systems, especially in humid or corrosive environments. The pneumatic valve 21 is less susceptible to electromagnetic interference and retains its last operating state (open or closed) even in the event of a power outage, thereby enhancing system safety.

[0064] See Figure 3 and Figure 4 As shown, in some embodiments, the sludge transfer tank also includes a fixed base 4, which is fixedly mounted on the side wall or bottom wall of the tank body 1, and the sludge discharge pipe 31 and / or extraction device 32 are fixedly installed on the fixed base 4.

[0065] Specifically, the fixed base 4 is located inside the pool body 1 and is fixedly assembled to the side wall or bottom wall of the pool body 1. It is optimal to fix the fixed base 4 to the bottom wall of the pool body 1, as the bottom wall is easier to fix than the side wall and will not affect the overall center of gravity of the pool body 1 after installation. The sludge discharge pipe 31 or the extraction device 32 is fixedly installed on the fixed base 4. By fixing the sludge discharge pipe 31, the extraction device 32 is indirectly fixed, or vice versa, thereby ensuring the stable posture of the sludge discharge pipe within the pool body 1 and ensuring the effective pumping of the fecal-sewage mixture.

[0066] See Figure 3 and Figure 4 As shown, in some embodiments, the sludge transfer tank also includes a slide rail 5 disposed inside the tank body 1. The slide rail 5 is parallel to the axial direction of the tank body 1. The extraction device 32 is provided with a chute 321, which slides on the slide rail 5.

[0067] Specifically, the slide rail 5 system allows operators to easily adjust the position of the extraction device 32 as needed, enabling the extraction device 32 to be flexibly moved to the most effective working position according to the actual sedimentation situation or processing requirements, thereby improving processing efficiency.

[0068] More importantly, when it is necessary to clean the inside of the pool 1 or maintain the extraction equipment 32, the extraction equipment 32 can be easily moved out of the work area along the slide rail 5, thereby simplifying the maintenance process and reducing the risk of workers coming into direct contact with pollutants.

[0069] See Figure 1 As shown, in some embodiments, the outer wall of the pool body 1 is provided with a sleeve 6, and a positioning rod is inserted inside the sleeve 6 to position the pool body 1.

[0070] Specifically, the vibration generated during the operation of the submersible pump may cause the tank body 1 to shift or tilt. By firmly fixing the tank body 1 in the predetermined position using the sleeve 6 and the positioning rod, this situation can be effectively avoided, ensuring the stability of the tank body 1. Furthermore, for safety reasons, the sleeve 6 is fitted onto the positioning rod to prevent the tank body 1 from tilting or moving.

[0071] See Figure 1 As shown, further, multiple sleeves 6 are provided, and the multiple sleeves 6 are evenly distributed along the circumference of the outer wall of the pool body 1.

[0072] Specifically, by evenly arranging multiple sleeves 6 around the outer wall of the pool body 1, the overall stability of the pool body 1 can be improved, reducing the risk of deformation or damage caused by excessive local stress.

[0073] This utility model also provides a fishpond, including multiple upstream sewage mixture generating devices, downstream sewage mixture storage or treatment devices, and the aforementioned sewage collection and transfer tank. The sewage from the multiple upstream sewage mixture generating devices settles and collects in the sewage collection and transfer tank before entering the downstream sewage mixture storage or treatment devices.

[0074] Specifically, secondary sedimentation in the wastewater collection and transfer tank allows for further sedimentation and accumulation of the fecal wastewater, thereby increasing the concentration of the mixed wastewater entering downstream treatment equipment. This helps improve the efficiency and effectiveness of subsequent treatment processes (such as anaerobic digestion and biological treatment), as high-concentration fecal wastewater is more suitable for these processes.

[0075] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A wastewater collection and transfer tank, characterized in that, include: pool(1); The upper liquid pipe (2) has its outlet end located inside the pool body (1) and its inlet end located outside the pool body (1). The inlet end of the upper liquid pipe (2) is connected to the upstream fecal sewage mixture generating equipment. The outlet end of the upper liquid pipe (2) is lower than the liquid level of the upstream fecal sewage mixture generating equipment in the vertical direction, and the liquid level in the pool body (1) is lower than the liquid level of the upstream fecal sewage mixture generating equipment in the vertical direction. The upper liquid pipe (2) is equipped with a valve (21) for controlling the opening and closing of the upper liquid pipe (2). The sludge discharge pipeline includes a sludge discharge pipe (31) and an extraction device (32). One end of the sludge discharge pipe (31) is located inside the pool (1), and the other end is used to connect to downstream fecal sewage mixture storage or treatment equipment. The extraction device (32) is connected to the sludge discharge pipe (31) to extract the fecal sewage mixture in the pool (1) into the downstream fecal sewage mixture storage or treatment equipment.

2. The sludge transfer tank according to claim 1, characterized in that, The extraction device (32) is a submersible pump, which has an inlet and an outlet. The sludge discharge pipe (31) is located inside the pool (1) and is connected to the outlet. The inlet of the submersible pump is close to the bottom of the pool (1) where fecal matter has settled.

3. The sludge collection and transfer tank according to claim 1, characterized in that, The outlet end of the liquid inlet pipe (2) is located at the middle of the pool body (1) in its height direction.

4. A sludge collection and transfer tank according to claim 1, characterized in that, The upper liquid pipe (2) is provided in multiple ways, and each upper liquid pipe (2) is provided with a valve (21). The connection relationship between the upper liquid pipe (2) and the upstream sewage mixture generating equipment includes at least one of the following: a. Each of the upstream sewage mixture generating devices is connected to multiple of the above-ground liquid inlets (2); b. Each of the above liquid pipes (2) is connected to multiple of the upstream sewage mixture generating devices; c. Each of the upper liquid pipes (2) is connected to one of the upstream sewage mixture generating devices corresponding to it.

5. A sludge collection and transfer tank according to claim 1, characterized in that, The valve (21) is one of a manual valve, an electric valve, or a pneumatic valve. When the valve (21) is a pneumatic valve, the pneumatic valve is connected to an external air source to drive the opening and closing of the pneumatic valve.

6. A sludge collection and transfer tank according to claim 1, characterized in that, It also includes a fixed base (4), which is fixedly assembled to the side wall or bottom wall of the pool body (1), and the sludge discharge pipe (31) and / or the extraction device (32) are fixedly installed on the fixed base (4).

7. A sludge transfer tank according to claim 1, characterized in that, It also includes a slide rail (5) provided in the pool body (1), the slide rail (5) being parallel to the axial direction of the pool body (1), and the extraction device (32) being provided with a slide groove (321), the slide groove (321) being slidably disposed on the slide rail (5).

8. A sludge collection and transfer tank according to claim 1, characterized in that, The outer wall of the pool body (1) is provided with a sleeve (6) for a positioning rod to be inserted inside the sleeve (6) to position the pool body (1).

9. A sludge transfer tank according to claim 8, characterized in that, The sleeve (6) is provided in multiple ways, and the multiple sleeves (6) are evenly distributed along the circumference of the outer wall of the pool body (1).

10. A fishpond comprising multiple upstream sewage mixture generating devices and downstream sewage mixture storage or treatment devices, characterized in that, It also includes the sewage collection and transfer tank as described in any one of claims 1-9, in which sewage from multiple upstream sewage mixing equipment settles and collects before entering the downstream sewage mixing storage or treatment equipment.

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