An anaerobic sludge tank hydraulic stirring device

Abstract

The utility model relates to sewage treatment technical field, the utility model discloses an anaerobic sludge pool hydraulic stirring device, including the symmetrical setting floating platform, structural frame is fixedly installed between two groups floating platform, non -block vortex pump is fixedly installed on structural frame through bolt, suction pipe is fixedly connected in the input of non -block vortex pump, this anaerobic sludge pool hydraulic stirring device can solve the problem that the existing stirring device is difficult to cover large -scale or irregular pool body because of installation fixation, limited range of action, realizes all -round dead -angle -free stirring. Can break sludge stratification crust, promote new sludge and active bacteria colony mixing, guarantee pool temperature, pH value and organic matter even, prevent sludge deposition, help biogas release, improve anaerobic digestion efficiency, gas production rate and system stability, also adapt to different water depth, reduce energy consumption and maintenance cost, guarantee equipment stability, enhance sludge treatment practicality and reliability.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a hydraulic stirring device for anaerobic sludge tanks. Background Technology

[0002] Anaerobic digestion is a crucial step in wastewater treatment, utilizing facultative and anaerobic bacteria to decompose organic matter in sludge into methane and carbon dioxide under anaerobic conditions. Effective agitation is essential in this process. The role of agitation is to: break up sludge stratification and crusting within the tank, ensuring thorough and rapid mixing and contact between newly added sludge and the existing active microbial community; maintain uniform temperature, pH, and organic matter distribution within the tank; prevent sludge deposition and scaling at the bottom, improving tank volume utilization; and promote the smooth release of biogas produced during the reaction. The effectiveness of agitation directly affects the efficiency of anaerobic digestion, biogas production rate, and system operational stability. Existing mixing devices, whether mechanical, gas-based, or fixed hydraulic, are limited by their fixed installation location and limited range of action, making it difficult to achieve comprehensive, dead-angle-free mixing of large or irregularly shaped anaerobic sludge tanks. Therefore, we propose a hydraulic mixing device for anaerobic sludge tanks to solve the aforementioned problems. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a hydraulic mixing device for anaerobic sludge ponds. It solves the problems of fixed installation positions and limited range of action of existing mechanical, gas-type, and fixed hydraulic mixing devices. It also solves the problems that make it difficult to achieve all-round, dead-angle-free mixing in large or irregularly shaped anaerobic sludge ponds, which leads to sludge stratification and crusting, insufficient mixing of new sludge and active bacteria, uneven distribution of temperature / pH value / organic matter in the pond, easy sludge deposition, and obstructed biogas release, thereby affecting anaerobic digestion efficiency, biogas production rate, and system operational stability.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: an anaerobic sludge tank hydraulic stirring device, comprising symmetrically arranged floating platforms; The structural frame is fixedly installed between the two sets of floating platforms; The non-clogging vortex pump is bolted to the structural frame. The suction pipe is fixedly connected to the input end of the non-clogging vortex pump; A rigid water outlet pipe is located on one side of the non-clogging vortex pump, and a flexible connecting pipe is connected between the rigid water outlet pipe and the output end of the non-clogging vortex pump. A jet nozzle is fixedly installed at the bottom end of the rigid water outlet pipe. The propulsion and steering mechanism is mounted on the bottom of the structural frame via a bracket; The battery pack is mounted on the structural frame.

[0005] Preferably, the end of the suction pipe away from the output end of the non-clogging vortex pump is lower than the lowest surface of the floating platform, and the propulsion and steering mechanism is lower than the lowest surface of the floating platform via a bracket.

[0006] Preferably, a fixed seat is fixedly installed on the upper surface of the structural frame, and an arc-shaped clamp is provided inside the fixed seat. A telescopic support rod arranged symmetrically is fixed between the arc-shaped clamp and the fixed seat. One side of the inner wall of the fixed seat has a V-groove structure design. A bolt pin is rotatably installed on one side of the arc-shaped clamp through a bearing. One side of the fixed seat is threadedly connected to the bolt pin through a threaded hole. The water outlet hard pipe is located between the arc-shaped clamp and the fixed seat.

[0007] Preferably, the surface of the outlet hard pipe is fixedly connected to multiple sets of equidistantly arranged connectors. A cylindrical block is integrally stamped on the surface of each connector. A ball valve is provided on the cylindrical block, and the control end is located inside the connector for sealing the connector. One end of the flexible connecting pipe is fixedly connected to the output end of the non-clogging vortex pump, and the other end of the flexible connecting pipe is locked to one of the sets of connectors by a clamp.

[0008] Preferably, the cylindrical block is provided with a rubber sleeve, the inner side wall of the rubber sleeve is fixed with a protruding edge strip, and the outer surface of the cylindrical block is provided with an embedded groove that matches the protruding edge strip. The rubber sleeve is fitted and snapped into the embedded groove of the cylindrical block through the protruding edge strip, which is used to protect the screw joint between the ball valve and the cylindrical block.

[0009] Preferably, a U-shaped support frame is fixedly installed between the two sets of floating platforms, and solar photovoltaic panels are installed on the U-shaped support frame. Beneficial effects

[0010] This invention provides a hydraulic mixing device for anaerobic sludge ponds. Compared with the prior art, it has the following advantages: This anaerobic sludge tank hydraulic mixing device effectively solves the problem that existing mechanical, gas-type, and fixed hydraulic mixing devices are difficult to cover large or irregularly shaped anaerobic sludge tanks due to their fixed installation location and limited range of action. It can achieve all-round mixing without dead angles in the tank, breaking up sludge stratification and crusting, and allowing newly added sludge to fully and quickly mix and contact with the existing active microbial community in the tank. At the same time, it can ensure the uniform distribution of temperature, pH value, and organic matter in the tank, avoid sludge deposition and scaling at the bottom of the tank to improve tank volume utilization, and promote the smooth release of biogas produced by the reaction, thereby significantly improving anaerobic digestion efficiency, gas production rate, and system operation stability. In addition, it has been optimized in terms of adapting to different wastewater tank depth requirements, reducing equipment energy consumption and maintenance costs, and ensuring long-term stable operation of the equipment, further improving the practicality and reliability of the anaerobic sludge treatment process. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the floating structure of the floating platform of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is a top view of the overall structure of this utility model; Figure 4 This is a schematic diagram of the structure of the connecting parts such as the water outlet rigid pipe and the jet nozzle of this utility model; Figure 5 This utility model Figure 4 A magnified structural diagram at point A.

[0012] In the diagram: 101, Floating platform; 102, Structural frame; 103, Clog-free vortex pump; 104, Suction pipe; 105, Flexible connecting pipe; 106, Outlet rigid pipe; 107, Jet nozzle; 108, Propulsion and steering mechanism; 109, Battery pack; 110, U-shaped support frame; 111, Solar photovoltaic panel; 112, Connector; 113, Cylindrical block; 114, Ball valve; 115, Fixing seat; 116, Bolt pin; 117, Telescopic support rod; 118, Arc-shaped clamp; 119, Rubber sleeve; 120, Raised edge strip; 121, Embedded groove. Detailed Implementation

[0013] 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.

[0014] like Figure 1-5 As shown: A hydraulic mixing device for an anaerobic sludge tank includes symmetrically arranged floating platforms 101. The structural frame 102 is fixedly installed between the two sets of floating platforms 101; The non-clogging vortex pump 103 is fixedly mounted on the structural frame 102 by bolts; The suction pipe 104 is fixedly connected to the input end of the non-clogging vortex pump 103; The outlet hard pipe 106 is located on one side of the non-clogging vortex pump 103, and the outlet hard pipe 106 and the output end of the non-clogging vortex pump 103 are connected by a flexible connecting pipe 105. The bottom end of the outlet hard pipe 106 is fixedly installed with a jet nozzle 107. The propulsion and steering mechanism 108 is mounted on the bottom of the structural frame 102 via a bracket; The end of the suction pipe 104 away from the output end of the non-clogging vortex pump 103 is lower than the lowest surface of the floating platform 101, and the propulsion and steering mechanism 108 is lower than the lowest surface of the floating platform 101 via a bracket. The battery pack 109 is mounted on the structural frame 102; It also includes a main control unit, which is fixedly installed on the structural frame 102 and located in a waterproof box installed on the structural frame 102; a wireless communication module, which is electrically connected to the main control unit and is used to receive remote control commands and transmit device status data; and a positioning module, which is electrically connected to the main control unit and is used to obtain the device's position information in real time. The main control unit controls the movement of the propulsion and steering mechanism 108 according to the commands received via the wireless communication module and the position information obtained by the positioning module, so as to realize remote control movement.

[0015] In this implementation plan: When the anaerobic sludge tank hydraulic mixing device is in use, the device is placed in the anaerobic sludge tank. The floating platform 101 supports the entire device by its own buoyancy and floats on the water surface. The bottom of the propulsion and steering mechanism 108 and the suction pipe 104 are naturally immersed in the sewage because they are lower than the lowest surface of the floating platform 101. Check the battery pack 109 power level. If the power is insufficient, it can be charged. At the same time, it can be charged in real time through the solar photovoltaic panel 111 on the U-shaped support frame 110 to ensure stable power supply to the equipment. Based on the shape of the anaerobic sludge tank, the staff planned the device's movement path on the remote control terminal, identified the areas that needed to be stirred, and after receiving the path instructions, the main control unit combined the real-time position information obtained by the positioning module to calculate the motion parameters of the propulsion and steering mechanism 108, such as propulsion speed and steering angle. The main control unit sends action commands to the propulsion and steering mechanism 108, and the drive mechanism drives the structural frame 102 and the floating platform 101 to move through the bracket; After the device completes mixing in one area, the main control unit automatically switches to the next mixing area according to a preset path, without manual intervention. For large sludge tanks, segmented moving agitation can gradually cover the entire tank; for irregularly shaped tanks, the positioning module can capture the tank wall boundaries in real time to prevent the device from colliding with the tank wall and ensure safe operation of the equipment. The operator sends a stirring start command via a remote terminal, and the main control unit controls the non-clogging vortex pump 103 to power on and run. The non-clogging vortex pump 103 is fixed to the structural frame 102 with bolts. When running, it generates negative pressure, drawing sewage into the pump chamber through the suction pipe 104. Because the bottom end of the suction pipe 104 is immersed in the sewage, and the pump body adopts a non-clogging design, it can effectively avoid impurities in the sludge from clogging the pump chamber, ensuring a continuous and stable pumping process. Wastewater pumped into the pump chamber is pressurized by the non-clogging vortex pump 103 and discharged from the output end. It is then transported to the outlet hard pipe 106 through the flexible connecting pipe 105. The jet nozzle 107 fixedly installed at the bottom of the outlet hard pipe 106 adopts a high-pressure jet design. Wastewater is sprayed out of the nozzle at high speed, forming a strong water impact that breaks the layered structure of sludge, allowing the newly added sludge to fully contact the original active microbial community in the pool. At the same time, the jet water flow drives the surrounding sludge to move, promoting the uniform distribution of temperature, pH value and organic matter in the pool, and preventing sludge from depositing and scaling at the bottom of the pool. When the anaerobic sludge tank mixing operation is completed, the staff sends a stop command on the remote terminal. The main control unit first controls the non-clogging vortex pump 103 to stop pumping water and jet mixing; then controls the propulsion and steering mechanism 108 drive device to move to the preset recycling position at the edge of the tank to complete the equipment reset. Use hoisting equipment to lift the device from the sludge tank, clean the sludge and impurities adhering to the surface of the floating platform 101, suction pipe 104, and jet nozzle 107, check whether the structural frame 102, fixed base 115 and other components are deformed or damaged, and after confirming that the equipment is normal, transfer it to the storage area to wait for the next use.

[0016] This solution effectively addresses the problem that existing mechanical, gas-based, and fixed hydraulic mixing devices, due to their fixed installation locations and limited operating range, cannot cover large or irregularly shaped anaerobic sludge tanks. It achieves all-around, dead-angle-free mixing within the tank, breaking down sludge stratification and crusting, allowing newly added sludge to fully and rapidly mix and contact with the existing active microbial community. Simultaneously, it ensures uniform distribution of temperature, pH, and organic matter within the tank, preventing sludge deposition and scaling at the bottom, thus improving tank capacity utilization. It also promotes the smooth release of biogas produced in the reaction, significantly improving anaerobic digestion efficiency, biogas production rate, and system operational stability. Furthermore, it optimizes adaptation to different wastewater tank depth requirements, reduces equipment energy consumption and maintenance costs, and ensures long-term stable operation, further enhancing the practicality and reliability of the anaerobic sludge treatment process.

[0017] It should be noted that: during use, each electrical device can be started and operated separately through the main control unit. The power connection method of each electrical device is a mature existing technology and is well known to those in the field, so it will not be elaborated on here. The positioning module can use the UM981 from Hexin Xingtong. The wireless communication module and the main control unit are all existing technologies known to those skilled in the art and are implemented using existing conventional technical means. Meanwhile, the propulsion and steering mechanism 108 includes at least two sets of independently controlled vector thrusters. The main control unit realizes the straight-line movement, steering and lateral movement of the device through differential control or cooperative control of the vector thrusters. The propulsion and steering mechanism 108 is also implemented using conventional technical means and will not be described in detail.

[0018] Furthermore; In an optional embodiment, a fixing seat 115 is fixedly installed on the upper surface of the structural frame 102. An arc-shaped clamping plate 118 is provided inside the fixing seat 115. A telescopic support rod 117 arranged symmetrically is fixed between the arc-shaped clamping plate 118 and the fixing seat 115. One side of the inner wall of the fixing seat 115 is designed with a V-shaped groove structure. A bolt pin 116 is rotatably installed on one side of the arc-shaped clamping plate 118 through a bearing. One side of the fixing seat 115 is threadedly connected to the bolt pin 116 through a threaded hole. The water outlet hard pipe 106 is located between the arc-shaped clamping plate 118 and the fixing seat 115. The surface of the outlet hard pipe 106 is fixedly connected to multiple sets of equidistantly arranged connectors 112. A cylindrical block 113 is integrally stamped on the surface of the connector 112. A ball valve 114 is provided on the cylindrical block 113, and the control end is located inside the connector 112 for sealing the connector 112. One end of the flexible connecting pipe 105 is fixedly connected to the output end of the non-clogging vortex pump 103, and the other end of the flexible connecting pipe 105 is locked to one of the sets of connectors 112 by a clamp.

[0019] In this embodiment: if it is necessary to adjust the stirring position according to the depth of the sewage tank, manually rotate the bolt pin 116 on the fixed seat 115 to loosen the arc-shaped clamp 118, release the lock on the outlet hard pipe 106, move the outlet hard pipe 106 up and down to adjust its sinking depth until the jet nozzle 107 reaches the target stirring level, align the flexible connecting pipe 105 with the connector 112 on the outlet hard pipe 106 that is closest to the current height, and fix and lock it with a clamp, rotate the ball valve 114 on the connector 112 of the connected flexible connecting pipe 105 to release the blockage; at the same time, turn the ball valve 114 on the other unconnected connectors 112 to block them to prevent sewage leakage, and finally rotate the bolt pin 116 in the opposite direction to make the arc-shaped clamp 118 clamp the outlet hard pipe 106 again to complete the depth fixation.

[0020] It should be noted that the surface of the outlet hard pipe 106 has scale lines.

[0021] It should be noted that a set of connectors 112 can also be designed on the outlet hard pipe 106, so that different lengths of outlet hard pipe 106 can be flexibly replaced according to the depth of the sewage tank to meet the actual use needs.

[0022] Furthermore; like Figure 4 and 5 As shown: In an optional embodiment, a rubber sleeve 119 is provided on the cylindrical block 113, and a protruding edge strip 120 is fixed on the inner side wall of the rubber sleeve 119. An inner groove 121 adapted to the protruding edge strip 120 is opened on the outer surface of the cylindrical block 113. The rubber sleeve 119 is sleeved and snapped into the inner groove 121 opened in the cylindrical block 113 through the protruding edge strip 120, which is used to protect the screwing point between the ball valve 114 and the cylindrical block 113.

[0023] In this embodiment: Before operating the stirring device, the installation status of the rubber sleeve 119 on the cylindrical block 113 needs to be checked. A raised edge strip 120 is fixed to the inner wall of the rubber sleeve 119, and an inner groove 121 adapted to the raised edge strip 120 is provided on the outer surface of the cylindrical block 113. It must be ensured that the rubber sleeve 119 is accurately fitted and engaged in the inner groove 121 through the raised edge strip 120, completely covering the screw joint between the ball valve 114 and the cylindrical block 113. This protective structure can prevent corrosive substances and impurities in sewage from entering the screw joint, avoiding jamming of the ball valve 114 or rust at the connection, and extending the service life of the components.

[0024] It should be noted that the raised edge strip 120 is made of the same material as the rubber sleeve 119.

[0025] Furthermore; In an optional embodiment, a U-shaped support frame 110 is fixedly installed between the two sets of floating platforms 101. A solar photovoltaic panel 111 is installed on the U-shaped support frame 110. The support frame 110 also includes a solar charging controller, which is fixedly installed on the structural frame 102. Its input end is electrically connected to the solar photovoltaic panel 111, and its output end is electrically connected to the battery pack 109. A waterproof charging interface is installed on the structural frame 102 and electrically connected to the battery pack 109 for connecting to an external power source to charge the battery pack 109.

[0026] In this embodiment: During device operation, the solar photovoltaic panel 111 continuously receives sunlight and converts solar energy into electrical energy, which is then used to charge the battery pack 109 via the charging controller. The main control unit monitors the battery pack 109's charge level in real time. When the charge level is lower than the operating threshold, the power provided by the solar photovoltaic panel 111 is automatically prioritized. When there is insufficient sunlight and the photovoltaic panel's power generation is lower than the device's power consumption, the power supply is automatically switched to the battery pack 109 to ensure continuous device operation without frequent shutdowns for charging.

[0027] It should be noted that the battery pack 109 is equipped with a waterproof casing to protect it.

[0028] It should be noted that the solar photovoltaic panel 111 charges the battery pack 109. The specific wire connection method and charging method are also achieved by conventional technical means. The power connection method of each electrical device is an existing mature technology and is well known to those in the field. It will not be elaborated here.

[0029] It should be noted that the U-shaped support frame 110 is equipped with a hanging component for hoisting equipment to lift the device from the sludge tank.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hydraulic stirring device for an anaerobic sludge tank, characterized in that: Including a symmetrically arranged floating platform (101); The structural frame (102) is fixedly installed between the two sets of floating platforms (101); A non-clogging vortex pump (103) is fixedly mounted on the structural frame (102) by bolts; The suction pipe (104) is fixedly connected to the input end of the non-clogging vortex pump (103); A water outlet hard pipe (106) is provided on one side of the non-clogging vortex pump (103), and a flexible connecting pipe (105) is connected to the output end of the water outlet hard pipe (106) and the non-clogging vortex pump (103). A jet nozzle (107) is fixedly installed at the bottom end of the water outlet hard pipe (106). The propulsion and steering mechanism (108) is mounted on the bottom of the structural frame (102) via a bracket; A battery pack (109) is mounted on the structural frame (102).

2. The anaerobic sludge tank hydraulic stirring device according to claim 1, characterized in that: The end of the suction pipe (104) away from the output end of the non-clogging vortex pump (103) is lower than the lowest surface of the floating platform (101), and the propulsion and steering mechanism (108) is lower than the lowest surface of the floating platform (101) via a bracket.

3. The anaerobic sludge tank hydraulic stirring device according to claim 2, characterized in that: A fixed seat (115) is fixedly installed on the upper surface of the structural frame (102). An arc-shaped clamp (118) is provided inside the fixed seat (115). A telescopic support rod (117) arranged symmetrically is fixed between the arc-shaped clamp (118) and the fixed seat (115). One side of the inner wall of the fixed seat (115) is designed with a V-groove structure. A bolt pin (116) is rotatably installed on one side of the arc-shaped clamp (118) through a bearing. One side of the fixed seat (115) is threadedly connected to the bolt pin (116) through a threaded hole. The water outlet hard pipe (106) is located between the arc-shaped clamp (118) and the fixed seat (115).

4. The anaerobic sludge tank hydraulic stirring device according to claim 2, characterized in that: The surface of the outlet hard pipe (106) is fixedly connected to multiple sets of equidistantly arranged connectors (112). A cylindrical block (113) is integrally stamped on the surface of the connector (112). A ball valve (114) is provided on the cylindrical block (113), and the control end is located inside the connector (112) for sealing the connector (112). One end of the flexible connecting pipe (105) is fixedly connected to the output end of the non-clogging vortex pump (103), and the other end of the flexible connecting pipe (105) is locked to one of the sets of connectors (112) by a clamp.

5. The anaerobic sludge tank hydraulic stirring device according to claim 4, characterized in that: The cylindrical block (113) is provided with a rubber sleeve (119), and a convex edge strip (120) is fixed on the inner side wall of the rubber sleeve (119). The outer surface of the cylindrical block (113) is provided with an embedded groove (121) that matches the convex edge strip (120). The rubber sleeve (119) is sleeved and snapped into the embedded groove (121) of the cylindrical block (113) through the convex edge strip (120) to protect the screw joint between the ball valve (114) and the cylindrical block (113).

6. The anaerobic sludge tank hydraulic stirring device according to claim 1, characterized in that: A U-shaped support frame (110) is fixedly installed between the two sets of floating platforms (101), and a solar photovoltaic panel (111) is installed on the U-shaped support frame (110).

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