A floating sludge removal system and suction device for collecting floating sludge in a biochemical pond

Abstract

This invention discloses a sludge removal system and sludge suction device for collecting floating sludge in biological treatment ponds, relating to the field of sludge treatment technology. The invention includes an air compressor and an air storage tank. The air compressor is connected to the air storage tank, which is connected to a filter. The filter is connected to a refrigerated dryer. The filter is connected to a control box via a compressed air pipe. Valves are installed at the connections between the filter and the refrigerated dryer, and between the filter and the control box. The refrigerated dryer is connected to the control box via an instrument air pipe. The compressed air pipe is connected to a pneumatic diaphragm pump via the control box. The pneumatic diaphragm pump is connected to a sludge suction assembly. This invention can remove floating sludge more efficiently and thoroughly without the need for flocculants, thus avoiding adverse effects and reducing cleaning costs. It can adjust the position of the sludge collection port according to changes in water level, expanding the collection area and making the collection of floating sludge more efficient and rational.

Description

Technical Field

[0001] This invention relates to the field of sludge treatment technology, specifically to a sludge removal system and sludge suction device for collecting floating sludge from biological treatment ponds. Background Technology

[0002] In existing wastewater treatment processes, due to excessively high activated sludge concentration in biological treatment tanks or untimely sludge removal, activated sludge aging is a common phenomenon in most operating biological treatment systems. Furthermore, the accumulation of large amounts of gas in the sludge, its small particle size and low density, and the presence of toxic substances causing sludge disintegration and a loose structure, all contribute to the accumulation of large amounts of floating sludge on the surface of the biological treatment tank. This floating sludge then enters the secondary sedimentation tank and floats on its surface, leading to a deterioration in the effluent quality of the secondary sedimentation tank. Simultaneously, the floating sludge hinders the entry of oxygen from the air into the biological treatment tank, reducing oxygen transfer efficiency. Therefore, timely cleaning of the floating sludge is necessary.

[0003] Existing treatment methods include regular manual cleaning, which is labor-intensive, increases operational costs and labor intensity, and is not thorough; water spraying consumes a lot of water, and the floating sludge is not removed, easily forming on the surface of the secondary sedimentation tank after flowing into it, affecting the quality of the effluent from the secondary sedimentation tank; adding an appropriate amount of flocculant to the biological treatment tank can increase the density of the floating sludge by utilizing the particle structure of the sludge, reducing its floating, but adding flocculant will have an adverse effect on subsequent treatment processes and increase operating costs; at the same time, the sludge suction devices of some existing floating sludge removal systems cannot adjust the position of the sludge collection port according to changes in water level, which cannot achieve more effective sludge suction, and the floating sludge cannot enter efficiently due to resistance at the edge of the sludge collection port, and the effective area of ​​traditional sludge collection ports is small, thus reducing the efficiency of floating sludge suction and removal. Summary of the Invention

[0004] The purpose of this invention is to address the problems of lacking a safe and effective sludge removal system, being unable to adjust the position of the sludge collection port according to changes in water level, failing to ensure high-level entry of sludge, having a small effective area of ​​the sludge collection port, and thus resulting in low efficiency in sludge removal. This invention provides a sludge removal system and sludge suction device for collecting sludge in biological treatment ponds.

[0005] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0006] A sludge removal system for collecting sludge from a biological treatment pond includes:

[0007] An air compressor and an air tank, wherein the air compressor and the air tank are connected.

[0008] The gas storage tank is connected to a filter;

[0009] A refrigerated dryer, wherein the filter is connected to the refrigerated dryer;

[0010] Compressed air pipe and control box; the filter is connected to the control box via the compressed air pipe.

[0011] Valves are installed at the connection points between the filter and the refrigerated dryer, and at the connection points between the filter and the control box;

[0012] An instrument air pipe is provided, through which the refrigerated dryer is connected to the control box.

[0013] A pneumatic diaphragm pump is connected to the compressed air pipe via a control box.

[0014] A sludge suction assembly is connected to the pneumatic diaphragm pump.

[0015] A Y-type filter is installed at the connection between the pneumatic diaphragm pump and the sludge suction assembly;

[0016] A pneumatic butterfly valve is installed at the connection point of the sludge suction assembly, and the instrument air pipe is connected to the pneumatic butterfly valve through the control box.

[0017] A sludge suction device for collecting floating sludge in a biological treatment pond includes a sludge suction assembly. The assembly comprises a collection frame and a floating support. The floating support is fixedly installed at the top of the collection frame, and a float is fixedly installed on the outer side of the floating support. Both the floating support and the float have a sealed, hollow design, which causes the collection frame to float on the water surface, with the top end of the collection frame below the water surface. A sludge-dispensing component is provided in the middle of the floating support to expand the sludge suction area and facilitate the entry of floating sludge into the collection frame. A conical hopper is fixedly installed at the bottom of the collection frame, and a steel... The steel wire hose has a U-shaped bottom and a corrugated design at the bends, allowing for vertical adjustment of the entire collection frame by bending and rotating the hose. A mounting block is located above the collection frame, through which the bent steel wire hose passes and is secured. A threaded rod is internally connected to the mounting block, with its bottom slidingly connected to the top of the collection frame, allowing the collection frame to move vertically a short distance relative to the rod. A handle is located at the bottom of the rod, driving its rotation and thus vertical movement relative to the mounting block.

[0018] Furthermore, the middle of the collection frame is made of a soft, waterproof material, and the folding design allows the collection frame to contract and expand according to changes in water level.

[0019] Furthermore, the mud-removing assembly includes a sliding rod. The sliding rod is slidably connected to the center of the floating support. A transmission rod is driven between the inner sides of the sliding rod. Two levers are rotatably connected to the outer side of the sliding rod, symmetrically arranged on the outer side. A pin is slidably connected to the top of the sliding rod. A traction rod is driven between the pin and the top of each of the two levers. A spring is fixedly connected between the traction rods. A slider is slidably connected to the top of the floating support. A clamping shaft is fixedly installed at the bottom of the slider. The clamping shaft is aligned with the traction rod. Therefore, when the traction rod moves to the point of squeezing contact with the clamping shaft, the clamping shaft compresses the spring and causes the traction rod to contract. A limiting block is fixedly installed at the bottom of the inner side of the sliding rod. The limiting block is slidably connected to the bottom of the floating support to ensure the sliding rod is slidably connected within the floating support. A driving assembly is provided at the bottom of the floating support, used to drive the sliding rod to extend and retract.

[0020] Furthermore, the four sliding rods are connected to each other via transmission rods on their adjacent inner sides. The four transmission rods form a rhomboid structure, so when one sliding rod moves, the two opposing sets of sliding rods can move in opposite directions or away from each other simultaneously.

[0021] Furthermore, the two traction rods at the top of the slide rod are rotatably connected around a pin on one side, and symmetrically unfolded on the other side to be hinged to the top of the two levers on the outside of the slide rod. Therefore, when the traction rod is pushed and retracted, it can drive the two levers to retract and merge, and when the traction rod is unfolded, it can drive the two levers to unfold into a vertical position.

[0022] Furthermore, the drive assembly includes a support frame and a connecting block. The connecting block is fixedly installed on the top of the conical bucket via the support frame. The connecting block is located at the center of the conical bucket. A rotating rod is rotatably connected to the inside of the connecting block. A turntable is fixedly installed on the top of the rotating rod. A drive rod is connected between the eccentric top of the turntable and the bottom of the limiting block. A fan blade is fixedly installed on the bottom of the rotating rod. The fan blade extends downward into the conical inner cavity of the conical bucket. Therefore, under the effect of the gradually decreasing area in the conical inner cavity, the accelerated water flow can better drive the fan blade to rotate.

[0023] Furthermore, the top of the rotating rod has a retractable limiting sliding design, and the top end is fixedly installed with the center of the turntable, thereby satisfying the shrinking and expanding of the collection frame.

[0024] Furthermore, one end of the drive rod is hinged to the eccentric part at the top of the turntable, and the other end is hinged to the bottom end of any limiting block. Therefore, when the turntable rotates, the driving rod can drive the limiting block and the slide rod to reciprocate and extend.

[0025] The beneficial effects of this invention are as follows:

[0026] 1. This invention, through the design of a sludge removal system, can utilize compressed air to suction and remove sludge. Multiple suction components can be installed, and the suction can be controlled via a control box. This allows multiple suction components to be used in rotation and intermittently, ensuring that distant sludge flows by gravity to the suction hopper, improving suction efficiency. The system can be adjusted according to the amount of sludge, enabling multiple suction hoppers to operate intermittently while the entire suction system operates continuously. This results in more efficient and thorough removal of sludge without the need for flocculants, thus avoiding adverse effects and reducing cleaning costs.

[0027] 2. This invention, through the design of the sludge suction component, utilizes a soft, waterproof material in the middle of the collection frame and a folding design. Combined with the buoyancy of the floating bracket and float, the collection frame can contract or expand within a certain range according to changes in water level, keeping the top end of the collection frame in a suitable position below the water surface to ensure effective collection of floating sludge. When the water level changes significantly, the overall height of the collection frame can be adjusted via a screw, making the collection of floating sludge more efficient, reasonable, and highly applicable.

[0028] 3. In this invention, through the coordinated design of the mud-dispensing component and the driving component in the mud suction assembly, the sliding rod on the inner side of the floating support can reciprocate during the process of suctioning floating mud. At the same time, when moving outward, it can drive the retracting and merging lever to move outward first and then unfold, avoiding pushing the floating mud around the collection frame. When retracting inward, the lever can push the floating mud into the collection frame first and then retract and merge, thereby allowing the floating mud to enter the collection frame better for collection and removal. At the same time, it can expand the collection area and improve the efficiency of suction and removal of floating mud. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the sludge removal system of the present invention;

[0030] Figure 2 This is a three-dimensional structural diagram of the mud suction device of the present invention;

[0031] Figure 3 This is a schematic diagram of the collection frame and top three-dimensional structure of the mud suction device of the present invention;

[0032] Figure 4 This is a schematic diagram of the three-dimensional structure of the mud-removing component of the mud-suction device of the present invention. Figure 1 ;

[0033] Figure 5 This is a schematic diagram of the three-dimensional structure of the mud-removing component of the mud-suction device of the present invention. Figure 2 ;

[0034] Figure 6This is a schematic diagram of the three-dimensional structure of the mud-removing component of the mud-suction device of the present invention. Figure 3 ;

[0035] Figure 7 This is a partial three-dimensional structural diagram of the mud-removing component of the mud-suction device of the present invention;

[0036] Figure 8 This is a three-dimensional structural diagram of the bottom of the mud suction device of the present invention.

[0037] Reference numerals: 1. Air compressor; 2. Air tank; 3. Filter; 4. Refrigerated dryer; 5. Compressed air pipe; 6. Valve; 7. Instrument air pipe; 8. Control box; 9. Sludge suction assembly; 91. Collection frame; 92. Floating support; 93. Float; 94. Sludge removal assembly; 941. Slide rod; 942. Transmission rod; 943. Actuating rod; 944. Pin; 945. Traction rod; 946. Spring; 947. Slider; 9471. Clamping shaft; 948. Limiting block; 949. Drive assembly; 9491. Support frame; 9492. Connecting block; 9493. Rotating rod; 9494. Turntable; 9495. Drive rod; 9496. Fan blade; 95. Conical bucket; 96. Steel wire hose; 97. Mounting block; 98. Lead screw; 10. Pneumatic butterfly valve; 11. Pneumatic diaphragm pump; 12. Y-type filter. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0039] A preferred embodiment of the present invention, comprising a sludge removal system and a sludge suction device for collecting sludge in a biological treatment pond, will be described in detail below. Figure 1 As shown, a sludge removal system for collecting sludge from a biological treatment pond includes:

[0040] Air compressor 1 and air tank 2 are connected together;

[0041] Filter 3 is connected to air tank 2;

[0042] Refrigerated dryer 4, filter 3 is connected to refrigerated dryer 4;

[0043] Compressed air pipe 5, control box 8, and filter 3 are connected to control box 8 through compressed air pipe 5;

[0044] Valve 6 is installed at the connection between filter 3 and refrigerated dryer 4, and at the connection between filter 3 and control box 8;

[0045] Instrument air pipe 7, the refrigerated dryer 4 is connected to the control box 8 through instrument air pipe 7;

[0046] A pneumatic diaphragm pump 11 is connected to a compressed air pipe 5 via a control box 8.

[0047] The sludge suction assembly 9 is connected to the pneumatic diaphragm pump 11.

[0048] Y-type filter 12 is installed at the connection between the pneumatic diaphragm pump 11 and the sludge suction assembly 9;

[0049] A pneumatic butterfly valve 10 is installed at the connection point of the sludge suction assembly 9, and the instrument air pipe 7 is connected to the pneumatic butterfly valve 10 through the control box 8.

[0050] In operation, the air compressor 1 pressurizes the air and introduces it into the air tank 2. The air tank 2 controls the air pressure within a suitable range, eliminating airflow pulsations in the pipeline and maintaining the air pressure at a set value. Then, the filter 3 removes particulate matter from the air. One stream of pressurized and filtered air passes through the compressed air pipe 5, then through the control box 8, and acts on the pneumatic diaphragm pump 11, enabling the pneumatic diaphragm pump 11 to work with the sludge suction assembly 9 to suck up floating sludge. The other stream passes through the refrigerated dryer 4 to reduce the temperature of the compressed air, removing moisture and producing instrument air. This instrument air then passes through the control box 8 and acts on the pneumatic butterfly valve 10 to control the flow of air. The sludge suction assembly 9 is turned on or off, and the Y-type filter 12 prevents debris from clogging the pneumatic diaphragm pump 11. Multiple sludge suction assemblies 9 can be arranged according to the size of the biological treatment tank. Due to the fluidity of the floating sludge, the control box 8 can automatically control the opening and closing of the pneumatic butterfly valve 10 and the start and stop of the pneumatic diaphragm pump 11. After the sludge suction assembly 9 has been suctioning for a certain period of time, it switches to the next sludge suction assembly 9. Multiple sludge suction assemblies 9 are used in turn and intermittently suction sludge to ensure that the floating sludge in the distance flows by gravity to the sludge suction hopper, thereby improving the sludge suction efficiency. The working time of each sludge suction assembly 9 can be set and adjusted according to the amount of floating sludge, so that multiple sludge suction hoppers can operate intermittently and the entire sludge suction system can operate continuously.

[0051] like Figures 2-8As shown, a sludge suction device for collecting floating sludge in a biological treatment pond includes a sludge suction assembly 9. The sludge suction assembly 9 includes a collection frame 91 and a floating support 92. The floating support 92 is fixedly installed on the top of the collection frame 91. The middle part of the collection frame 91 is made of a soft, waterproof material and has a folding design, allowing the collection frame 91 to contract and expand according to changes in water level. A float ball 93 is fixedly installed on the outer side of the floating support 92. Both the floating support 92 and the float ball 93 have a sealed hollow design, which causes the collection frame 91 to float on the water surface and keeps the top end of the collection frame 91 below the water surface. A sludge-dispensing component 94 is provided in the middle of the floating support 92. The sludge-dispensing component 94 is used to expand the sludge suction area and facilitate the entry of floating sludge into the collection frame 91. The bottom end of the collection frame 91 is fixed. A conical hopper 95 is fixedly installed, and a steel wire hose 96 is fixedly sleeved at the bottom of the conical hopper 95. The bottom of the steel wire hose 96 is U-shaped, and the bent part is a corrugated design. Therefore, by bending and rotating the steel wire hose 96, the overall height adjustment of the collection frame 91 can be achieved. An installation block 97 is set on the top of the collection frame 91. After bending, the steel wire hose 96 passes through the installation block 97 and is fixed by the installation block 97. The internal thread of the installation block 97 is connected to a lead screw 98. The bottom of the lead screw 98 is limited and slidably connected to the top of the collection frame 91, so that the collection frame 91 can move up and down a short distance relative to the lead screw 98. A handle is set at the bottom of the lead screw 98. By turning the handle, the lead screw 98 can be driven to rotate, thereby making the lead screw 98 move up and down relative to the installation block 97.

[0052] The mud-removing assembly 94 includes slide rods 941. The slide rods 941 are slidably connected to the center of the floating support 92. Transmission rods 942 are connected between the inner sides of the slide rods 941. The four slide rods 941 are all connected to each other via transmission rods 942, forming a rhomboid structure. Therefore, when one slide rod 941 moves, the two opposing sets of slide rods 941 can simultaneously move in opposite directions or away from each other. The outer sides of the slide rods 941 rotate... Two levers 943 are symmetrically arranged on the outside of the slide rod 941. A pin 944 is slidably connected to the top of the slide rod 941. A traction rod 945 is connected to both the pin 944 and the top of each of the two levers 943. One side of each of the two traction rods 945 at the top of the slide rod 941 is rotatably connected around the pin 944, while the other side is symmetrically extended and hinged to the top of each of the two levers 943 on the outside of the slide rod 941. Therefore, when the traction rod 945... When the traction rod 945 is pushed and retracted, it can cause the two levers 943 to retract and merge. When the traction rod 945 is extended, it can cause the two levers 943 to extend into a vertical position. A spring 946 is fixedly connected between the traction rods 945. A slider 947 is slidably connected to the top of the floating bracket 92. A clamping shaft 9471 is fixedly installed at the bottom of the slider 947. The clamping shaft 9471 is aligned with the traction rod 945. Therefore, when the traction rod 945 moves to make squeezing contact with the clamping shaft 9471, the clamping shaft 9471 can cause the traction rod 945 to compress the spring 946 and retract. A limit block 948 is fixedly installed at the bottom of the inner side of the slider 941. The limit block 948 is slidably connected to the bottom of the floating bracket 92 to ensure that the slider 941 is slidably connected within the floating bracket 92. A drive assembly 949 is provided at the bottom of the floating bracket 92. The drive assembly 949 is used to drive the slider 941 to move telescopically.

[0053] The drive assembly 949 includes a support frame 9491 and a connecting block 9492. The connecting block 9492 is fixedly installed on the top of the conical hopper 95 via the support frame 9491. The connecting block 9492 is located at the center of the conical hopper 95. A rotating rod 9493 is rotatably connected to the inside of the connecting block 9492. The top of the rotating rod 9493 has a telescopic and sliding design. The top of the rotating rod 9493 is fixedly installed with the center of the turntable 9494 to accommodate the contraction and extension of the collection frame 91. The turntable 9494 is fixedly installed on the top of the rotating rod 9493. The eccentric part of the top of the turntable 9494 is connected to the bottom of the limiting block 948. There is a drive rod 9495. One end of the drive rod 9495 is hinged to the eccentric part of the top of the turntable 9494, and the other end is hinged to the bottom end of any limiting block 948. Therefore, when the turntable 9494 rotates, the drive rod 9495 can drive the limiting block 948 and the sliding rod 941 to reciprocate and extend. The bottom end of the rotating rod 9493 is fixedly installed with a fan blade 9496. The fan blade 9496 extends downward into the conical inner cavity of the conical bucket 95. Therefore, under the action of the gradually decreasing area in the conical inner cavity, the accelerated water flow can better drive the fan blade 9496 to rotate.

[0054] In use, after fixing the mounting block 97, the collection frame 91 is placed in the biological treatment tank. The collection frame 91 floats on the surface of the biological treatment tank under the action of the floating support 92 and the float 93, with its top port below the water surface. This allows the floating sludge on the surface of the biological treatment tank to enter the collection frame 91. By opening the pneumatic butterfly valve 10, the pneumatic diaphragm pump 11 generates suction in the wire hose 96, causing the floating sludge in the collection frame 91 to pass through the conical hopper 95 and be sucked into the wire hose 96 for collection, thus completing the removal of the floating sludge. The collection frame 91 is made of a soft, waterproof material in the middle and has a folded design. The design incorporates a sliding connection at the bottom of the screw 98 to the top of the collection frame 91, which limits movement. Under the buoyancy of the floating bracket 92 and the float 93, the collection frame 91 can contract or expand within a certain range according to changes in water level, keeping the top port of the collection frame 91 in a suitable position below the water surface to ensure effective collection of floating mud. When the water level changes significantly and exceeds the automatic adjustment range of the collection frame 91, the screw 98 can be rotated and moved up and down using the threaded connection between the screw 98 and the mounting block 97. Combined with the corrugated pipe design at the bottom of the steel wire hose 96, the overall height of the collection frame 91 can be adjusted to accommodate large changes in water level.

[0055] During the sludge extraction process, the flow of sludge and water through the conical bucket 95 and the steel wire hose 96 drives the fan blades 9496 to rotate. This, in turn, drives the turntable 9494 to rotate via the rotating rod 9493. As the turntable 9494 rotates, the eccentrically connected drive rod 9495 drives the limiting block 948 and the sliding rod 941 to reciprocate. During the reciprocating movement of the sliding rod 941, the transmission rod 942, which is connected to the inner side of the sliding rod 941, forms a rhomboid structure. This mechanism enables two opposing sets of slide rods 941 to move in opposite directions or away simultaneously. When one set of opposing slide rods 941 moves inward and retracts, the other set of opposing slide rods 941 moves outward and extends. When the slide rods 941 retract inward, the traction rod 945 at the top of the slide rod 941 contacts the clamping shaft 9471 at the bottom of the slider 947. Under the pressure of the clamping shaft 9471, the traction rod 945 compresses the spring 946 and retracts inward, while simultaneously providing an outward reaction force to the traction rod 945. This allows the traction rod 945 to drive the lever 943 to retract. When the slide bar 941 moves outward, the friction between the traction rod 945 and the clamping shaft 9471, along with the limiting sliding connection of the slider 947 within the floating bracket 92, prevents the traction rod 945 from immediately disengaging from the clamping shaft 9471. This continues until the slider 947 is moved to the outer side and limited, at which point the traction rod 945 disengages from the clamping shaft 9471. This allows the traction rod 945 to unfold under the restoring force of the spring 946, thereby causing the lever 943 to unfold to a vertical position. After the slide bar 941 retracts inward again, the unfolded lever 943 can then engage the water surface. The floating mud is scraped inward, which facilitates its entry into the collection frame 91 for collection and removal. At the same time, after the traction rod 945 contacts the clamp shaft 9471, it will not immediately retract under the action of the reaction force, but will push the clamp shaft 9471 and the slider 947 inward until the slider 947 slides to the inner side and is limited. At this time, the lever 943 has also moved to the inner side of the top of the collection frame 91, completing the collection of floating mud. Then the slider 941 continues to move inward, which will cause the traction rod 945 to drive the lever 943 to retract and merge again to meet the next retraction and merging push.

[0056] Furthermore, during the repeated inward and outward movement of the sliding rods 941 on both sides, when moving outward, the traction rod 945 will not immediately drive the lever 943 to unfold, thus avoiding pushing away the floating mud around the collection frame 91. It will unfold after extending outward. When retracting, the traction rod 945 will not immediately drive the lever 943 to retract and merge, thus pushing the floating mud around the periphery into the collection frame 91. This allows the floating mud to enter the collection frame 91 better for collection and removal, while also expanding the collection area and improving the efficiency of floating mud absorption and removal.

[0057] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sludge removal system for collecting sludge in a biological treatment pond, characterized in that, include: An air compressor (1) and an air tank (2) are connected together; The filter (3) is connected to the gas storage tank (2); Refrigerated dryer (4), the filter (3) is connected to the refrigerated dryer (4); Compressed air pipe (5), control box (8), the filter (3) is connected to the control box (8) through the compressed air pipe (5); Valves (6) are installed at the connection between the filter (3) and the refrigerated dryer (4) and at the connection between the filter (3) and the control box (8). Instrument air pipe (7), the refrigerated dryer (4) is connected to the control box (8) through the instrument air pipe (7); Pneumatic diaphragm pump (11), the compressed air pipe (5) is connected to the pneumatic diaphragm pump (11) through the control box (8); The sludge suction assembly (9) is connected to the pneumatic diaphragm pump (11). Y-type filter (12), a Y-type filter (12) is installed at the connection between the pneumatic diaphragm pump (11) and the sludge suction assembly (9). A pneumatic butterfly valve (10) is installed at the connection of the sludge suction assembly (9), and the instrument air pipe (7) is connected to the pneumatic butterfly valve (10) through the control box (8); This includes a mud suction assembly (9), which comprises: A collection frame (91) and a floating bracket (92), wherein the floating bracket (92) is fixedly installed on the top of the collection frame (91); A float (93) is fixedly installed on the outside of the floating bracket (92). The floating bracket (92) and the float (93) are both designed with a closed hollow structure. The mud-removing component (94) is provided in the middle of the floating support (92). The mud-removing component (94) is used to expand the mud suction area and facilitates the floating mud to enter the collection frame (91). A conical hopper (95) is fixedly installed at the bottom end of the collection frame (91). Steel wire hose (96), the bottom of the conical bucket (95) is fixedly sleeved with steel wire hose (96). Mounting block (97): Mounting block (97) is provided above the collection frame (91). The steel wire hose (96) is bent and passes through the mounting block (97) and is fixed by the mounting block (97). The screw (98) is internally threaded to the mounting block (97), and the bottom of the screw (98) is slidably connected to the top of the collection frame (91). A throttle is provided at the bottom end of the screw (98).

2. The sludge removal system for collecting sludge in a biological treatment pond according to claim 1, characterized in that, The collection box (91) is made of a soft, waterproof material in the middle and has a folding design.

3. The sludge removal system for collecting sludge in a biological treatment pond according to claim 1, characterized in that, The bottom of the steel wire hose (96) is U-shaped, and the bent part is designed as a corrugated pipe.

4. The sludge removal system for collecting sludge in a biological treatment pond according to claim 1, characterized in that, The mud-removing assembly (94) includes: The sliding rod (941) is slidably connected to the center of the surrounding area of ​​the floating support (92). The transmission rod (942) is connected to the inner side of the slide rod (941). A lever (943) is rotatably connected to the outside of the slide rod (941), and the two levers (943) are symmetrically arranged on the outside of the slide rod (941). Pin (944), the top of the slide rod (941) is slidably connected to the pin (944). The traction rod (945) is connected to the pin (944) and the top of the two levers (943). Spring (946) is fixedly connected between the traction rods (945). The top of the floating bracket (92) is slidably connected to the slider (947), and the bottom end of the slider (947) is fixedly installed with a clamping shaft (9471), which is aligned with the traction rod (945). Limiting block (948): The bottom end of the inner side of the slide rod (941) is fixedly installed with limiting block (948), and the limiting block (948) is slidably connected to the bottom of the floating bracket (92); Drive assembly (949): The bottom of the floating bracket (92) is provided with drive assembly (949), which is used to drive slide bar (941) to extend and retract.

5. The sludge removal system for collecting sludge in a biological treatment pond according to claim 4, characterized in that, The four sliding rods (941) are connected to each other on their adjacent inner sides by transmission rods (942), and the four transmission rods (942) form a rhomboid structure.

6. The sludge removal system for collecting sludge in a biological treatment pond according to claim 4, characterized in that, The two traction rods (945) at the top of the slide rod (941) are rotatably connected around the pin (944) on one side, and symmetrically unfolded on the other side to be hinged to the top of the two levers (943) on the outside of the slide rod (941).

7. The sludge removal system for collecting sludge in a biological treatment pond according to claim 4, characterized in that, The drive component (949) includes: Support frame (9491), connecting block (9492), the top of the conical bucket (95) is fixedly installed with the connecting block (9492) through the support frame (9491), and the connecting block (9492) is located at the center of the conical bucket (95); Rotating rod (9493), the connecting block (9492) is internally limited to rotatably connected to the rotating rod (9493). Turntable (9494), the top of the rotating rod (9493) is fixedly installed with turntable (9494). A drive rod (9495) is connected between the eccentric top of the turntable (9494) and the bottom of the limiting block (948). The fan blade (9496) is fixedly installed at the bottom end of the rotating rod (9493), and the fan blade (9496) extends downward into the conical inner cavity of the conical bucket (95).

8. The sludge removal system for collecting sludge in a biological treatment pond according to claim 7, characterized in that, The top of the rotating rod (9493) has a telescopic limit sliding design, and the top end is fixedly installed with the center of the turntable (9494).

9. The sludge removal system for collecting sludge in a biological treatment pond according to claim 7, characterized in that, One end of the drive rod (9495) is hinged to the eccentric part of the top of the turntable (9494), and the other end is hinged to the bottom end of any limiting block (948).

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