A device for cleaning and treating floating sludge in a biochemical pool of a sewage treatment plant

Abstract

The present invention provides a device for cleaning and treating sludge residue in a biochemical pool of a sewage treatment plant, which relates to the technical field of biochemical pool sludge treatment. The device comprises a biochemical pool and a sludge catcher disposed above the pool. A self-propelled sludge cleaner is mounted at the center of the bottom of the pool. The sludge catcher comprises a support base fixed to the center of the bottom of the pool, a support shaft fixedly connected to the middle of the upper sidewall of the support base, and a support box fixedly connected to the top of the support shaft. The device addresses the problem of mechanical sludge removal, which can easily cause secondary contamination of the biochemical pool due to adhesion to the equipment. By utilizing a movable rod assembly and a stationary rod to generate water waves on the liquid surface, the sludge aggregates into a pile, which is then collected uniformly by the sludge catcher. This prevents the sludge from adhering to the self-propelled sludge cleaner and causing long-term contamination of the biochemical pool.

Description

Technical Field

[0001] The invention relates to the technical field of biochemical pool sludge treatment, in particular to a device for cleaning and treating floating sludge in a biochemical pool of a sewage treatment plant. Background Art

[0002] In the wastewater treatment process, the biochemical tank serves as the core unit for pollutant degradation, and its operating status directly impacts effluent quality. Floating sludge is a common operational issue in biochemical tanks. Key causes include sludge aging, excessive growth of filamentous bacteria, uneven aeration, and water quality shock. When sludge ages too long, microbial activity declines, and dead bacteria float due to reduced density. Filamentous bacteria proliferate rapidly under conditions of an imbalanced carbon-nitrogen ratio and insufficient dissolved oxygen, forming fluffy flocs that easily float to the surface. Locally excessive or insufficient aeration intensity can lead to sludge deflocculation or anaerobic gas production, exacerbating sludge formation. While sludge problems can be mitigated by adjusting parameters such as aeration rate and sludge return ratio, these adjustments are difficult to completely address when water quality shock or system microbial imbalances occur. Failure to promptly remove and dispose of the sludge not only hinders oxygen transfer and reduces biochemical reaction efficiency, but can also produce toxic gases such as hydrogen sulfide through anaerobic fermentation, worsening the operating environment and threatening equipment safety.

[0003] To address the low efficiency and labor intensity of manual salvage, current engineering practices often utilize mechanical equipment such as scrapers to remove sludge. However, the sticky nature of sludge presents significant challenges for mechanical treatment. This stickiness primarily stems from the production of extracellular polymeric substances (EPS) by microbial metabolism. These substances, composed of polysaccharides and proteins, form adhesive bonds between sludge particles. When the scraper is operating, the highly sticky sludge easily adheres to surfaces such as scrapers and chains, and even to the tank walls, forming a stubborn layer of sludge. Over time, this residual sludge is redispersed into the water column due to factors such as erosion and equipment vibration. This redispersed sludge not only increases the suspended solids content in the effluent, resulting in substandard effluent quality, but also carries with it pollutants such as incompletely degraded organic matter and pathogens, potentially interfering with the proper functioning of subsequent advanced treatment units. Furthermore, the sticky sludge on equipment surfaces can exacerbate wear on mechanical components, shortening equipment life and increasing operational costs.

[0004] Based on the above viewpoints, those skilled in the art have proposed a device for cleaning and treating floating sludge in a biochemical pool of a sewage treatment plant to solve the above problems. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a device for cleaning and treating floating sludge in the biochemical pool of a sewage treatment plant, which solves the problem that mechanical floating sludge removal easily adheres to the equipment and causes secondary pollution of the biochemical pool. The device uses a moving rod group and a stationary rod to generate water waves on the liquid surface, causing the floating sludge to gather and form a mud pile, which is then uniformly recovered using a floating sludge catcher. The floating sludge will not adhere to the self-propelled floating sludge cleaner, causing it to pollute the biochemical pool due to long-term residue.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a device for cleaning and treating floating sludge in a biochemical pool of a sewage treatment plant, comprising a biochemical pool and a floating sludge catcher arranged above the biochemical pool, a self-propelled floating sludge cleaner being installed at the bottom center of the biochemical pool, the self-propelled floating sludge cleaner comprising a support base fixed at the bottom center of the biochemical pool, a support shaft being fixedly connected to a support box at the middle position of an upper side wall of the support base, a water storage tank being fixedly connected to the top of the support box, a piston plate being slidingly connected to the inner limit of the water storage tank, a crank-type pumping assembly for driving the piston plate to rise and fall being installed on the top of the support box, an installation box being rotatably connected at the center of the support box, and a support platform for supporting the installation box being provided between the installation box and the support box;

[0007] A moving rod group is provided inside the installation box, and the moving rod group includes an outer tube, and one end of the outer tube close to the supporting box is fixedly connected to a rotating joint, and a one-way water inlet valve is installed at the center of the side wall of the supporting box close to the rotating joint, and the input end of the one-way water inlet valve is connected to a connecting water pipe, and the other end of the connecting water pipe passes through the upper side wall of the piston plate and is connected to the interior of the water storage tank, and the end of the rotating joint away from the supporting box is rotatably connected to the rotating tube, and the outer side wall of the rotating tube is limitedly slidably connected to the sprinkler pipe, and a number of sprinkler heads distributed in a linear array are installed at the bottom of the sprinkler pipe, and the bottom of the outer tube is connected to a spring magnetic plate through a spring, and a magnetic disk matching the spring magnetic plate is installed in the piston plate;

[0008] A self-propelled vehicle for driving the installation box to rotate along the center of the support box is installed at one end of the installation box away from the support box, and a bottom one-way valve is installed on the top of the water tank.

[0009] Preferably, a water wheel is rotatably connected to the inner center position of the rotating joint, the water wheel is fixedly connected to the rotating tube, the outer side wall of the rotating tube is fixedly connected to a spring tube, and the spring tube is connected to the sprinkler pipe through a spring.

[0010] Preferably, the end of the outer tube away from the support box is fixedly connected to a tail limit plate, and the side wall where the tail limit plate and the sprinkler pipe are close to each other are fixedly connected with mutually matching crown gears, and a torsion spring connector is provided between the tail limit plate and the sprinkler pipe.

[0011] Preferably, a lifting motor is installed on one side of the installation box close to the support box, the movable end of the lifting motor is connected to a rotating shaft, an elastic membrane cloth is wound on the rotating shaft, and the bottom of the elastic membrane cloth is fixedly connected to the top of the outer tube.

[0012] Preferably, an outer side wall of the rotating tube is fixedly connected to an external gear, and a toothed plate is fixedly connected to the top of the spring magnetic plate, and the toothed plate is meshed with the external gear.

[0013] Preferably, the top of the spring magnetic plate is fixedly connected to a limiting rod, and the limiting rod cooperates with the limiting hole at the bottom of the rotating tube.

[0014] Preferably, the crank-type pumping assembly includes a motor frame, a crank motor is installed on the outside of the motor frame, the movable end of the crank motor passes through the motor frame and is fixedly connected to the crank turntable, the front side wall of the crank turntable is rotatably connected to a crank connecting rod, the other end of the crank connecting rod is rotatably connected to a limiting slider, the limiting slider is slidably connected to the inner side of the motor frame, the bottom of the limiting slider is fixedly connected to a piston push rod, the top of the piston plate is installed with an elastic membrane cloth, and the bottom of the piston push rod is slidably connected to the inside of the elastic membrane cloth.

[0015] Preferably, the top of the piston plate is fixedly connected to a speaker seat, the magnetic disk is installed inside the speaker seat, the center of the magnetic disk is connected to a spring telescopic rod through a spring, the bottom of the spring telescopic rod is fixedly connected to a bottom connecting ring, the top of the bottom connecting ring is fixedly connected to a static rod limiting ring, the static rod limiting ring is arranged above the piston plate, and a static rod group is installed on the outer wall of the water tank.

[0016] Preferably, the static rod group includes a connecting membrane cloth connected to the outside of the water tank, and the top of the connecting membrane cloth is fixedly connected to the static rod.

[0017] The present invention has the following technical points and beneficial effects:

[0018] 1. When a small amount of sticky sludge appears on the top of the liquid surface of the biochemical pool due to the expansion of filamentous bacteria or aging sludge in the biochemical pool, the self-propelled vehicle drives the installation box to rotate along the center of the support box, and the crank-type pumping assembly drives. When the piston plate rises, the water in the biochemical pool will be pumped into the water storage tank through the bottom one-way valve. When the piston plate descends, the water is pressed into the sprinkler pipe through the connecting water pipe and the one-way water inlet valve, and then sprayed on the surface of the biochemical pool through the sprinkler nozzle. The spraying water can dilute the bubbles and grease in the floating sludge, so that the density of the mixed sludge is increased to close to the density of water, while reducing the porosity inside the flocs, thereby prompting the floating sludge to return to the bottom of the pool.

[0019] 2. When the surface of the biochemical pool is covered with a high rate of floating mud, forming continuous mud waves, the magnetic disk and the spring magnetic plate are attracted, and the stationary rod is tightly attached to the stationary rod limit ring and the piston plate. At this time, the movable rod group and the stationary rod are both restricted on the piston plate. Therefore, the movable rod group and the stationary rod are driven by the piston plate to rise and fall together at the top of the liquid surface of the biochemical pool, and then the movable rod group and the stationary rod are used to generate water waves on the liquid surface. As the water waves form, the floating mud on the liquid surface of the biochemical pool is driven away from the movable rod group and the stationary rod, while the movable rod group and the stationary rod are moved closer to each other. Therefore, the floating mud on the liquid surface eventually gathers between the stationary rod and the movable rod group. Using water waves to aggregate the floating mud not only allows the floating mud to aggregate in the form of whole flocs, reducing the fragmentation pollution caused by mechanical extrusion of the floating mud, but also the mud piles formed by the floating mud generated by the water waves can be uniformly recovered by the floating mud catcher. The floating mud will not stick to the self-propelled floating mud cleaner, causing it to pollute the biochemical pool due to long-term residue.

[0020] 3. When the piston plate is driven by the magnetic disk to rise and fall rapidly, the water in the water tank will be pressed into the moving rod group. At this time, the water will be sprinkled out from the sprinkler head. At the same time, due to the rotation and expansion of the sprinkler pipe, the water will be sprayed out in a rotation, continuously impacting the surface of the floating mud, which can quickly destroy its surface tension and disperse it into flowable flocs. At the same time, it can guide the floating mud to flow in a directional manner, and the floating mud will gather towards the mud collecting bucket in the center of the pool, reducing the moving distance of the floating mud catcher during salvage. At the same time, as the sprinkler pipe expands and contracts, the water will simultaneously impact the wall of the biochemical pool, preventing the floating mud from sticking to the pool wall and causing the problem of floating mud residue. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A top view of the present invention;

[0022] Figure 2 This is a first structural schematic diagram of the walking type floating mud cleaner of the present invention;

[0023] Figure 3 This is a second structural schematic diagram of the walking type floating mud cleaner of the present invention;

[0024] Figure 4 It is an isometric cross-sectional view of the walking type floating mud cleaner of the present invention;

[0025] Figure 5 for Figure 4 A magnified schematic diagram of point A in the middle;

[0026] Figure 6 for Figure 4 A magnified schematic diagram of point B in the middle;

[0027] Figure 7 for Figure 4 Enlarged schematic diagram of point C in the middle;

[0028] Figure 8 Schematic diagram of the coordination of the dynamic rod assembly, the horn seat, the static rod limiting ring, the bottom connecting ring and the static rod assembly in the present invention;

[0029] Figure 9 It is a partial isometric cross-sectional view of the movable rod assembly in the present invention;

[0030] Figure 10 Schematic diagram of the cooperation between the crank type water pumping assembly and the piston plate in the present invention.

[0031] Among them, 1. Biochemical pool; 2. Floating mud catcher; 3. Self-propelled floating mud cleaner;

[0032] 31. Support base; 32. Support shaft; 33. Support box; 34. Crank pumping assembly; 35. Self-propelled carriage; 36. Mounting box; 37. Lifting motor; 38. Stationary rod assembly; 39. Support platform; 310. Water storage tank; 311. Piston plate; 312. Moving rod assembly; 313. Speaker seat; 314. Magnetic plate; 315. Spring telescopic rod; 316. Bottom connecting ring; 317. Stationary rod limiting ring; 318. Rotating shaft; 319. Elastic membrane; 320. Bottom one-way valve;

[0033] 341. Motor frame; 342. Crank motor; 343. Crank turntable; 344. Crank connecting rod; 345. Limiting slider; 346. Piston push rod;

[0034] 381, stationary rod; 382, ​​connecting membrane cloth;

[0035] 3121. Connecting water pipe; 3122. One-way water inlet valve; 3123. Rotating joint; 3124. Outer pipe; 3125. Water wheel; 3126. Rotating pipe; 3127. Sprinkler pipe; 3128. Spring pipe; 3129. Tail limit plate; 31210. Crown gear; 31211. Torsion spring connector; 31212. Spring magnetic plate; 31213. Outer gear; 31214. Tooth plate; 31215. Limit rod; 31216. Sprinkler head. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] Example 1, as Figure 1-Figure 3As shown, an embodiment of the present invention provides a device for cleaning and treating floating sludge in a biochemical pool of a sewage treatment plant, comprising a biochemical pool 1 and a floating sludge catcher 2 arranged above the biochemical pool 1, a self-propelled floating sludge cleaner 3 is installed at the bottom center of the biochemical pool 1, and the self-propelled floating sludge cleaner 3 includes a support base 31 fixed at the bottom center of the biochemical pool 1, a support shaft 32 is fixedly connected to the middle position of the upper side wall of the support base 31, a support box 33 is fixedly connected to the top of the support shaft 32, a water tank 310 is fixedly connected to the outer wall of the support box 33, and the inner wall of the water tank 310 is fixedly connected. The support box 33 is connected to the piston plate 311 in a limited sliding manner. A crank-type pumping assembly 34 for driving the piston plate 311 to rise and fall is installed on the top of the support box 33. The center of the support box 33 is rotatably connected to the installation box 36. A support platform 39 for supporting the installation box 36 is provided between the installation box 36 and the support box 33. When the piston plate 311 rises, the water in the biochemical pool 1 will be drawn into the water storage tank 310 through the bottom one-way valve 320. When the piston plate 311 descends, the water is pressed into the sprinkler pipe 3127 through the connecting water pipe 3121 and the one-way water inlet valve 3122.

[0038] like Figure 4 、 Figure 6 and Figure 9 As shown, a movable rod group 312 is provided inside the installation box 36, and the movable rod group 312 includes an outer tube 3124. The outer tube 3124 is fixedly connected to a rotating joint 3123 at one end close to the support box 33. A one-way water inlet valve 3122 is installed at the center of a side wall of the rotating joint 3123 close to the support box 33. The input end of the one-way water inlet valve 3122 is connected to a connecting water pipe 3121. The other end of the connecting water pipe 3121 passes through the upper side wall of the piston plate 311 and is connected to the interior of the water storage tank 310. The end of the rotating joint 3123 away from the support box 33 is rotatably connected to a rotating tube 3126. The outer wall of the rotating tube 3126 is limitedly slidably connected to a sprinkler pipe 3127. The bottom of the sprinkler pipe 3127 is installed with several The sprinkler heads 31216 are distributed in a linear array, and the bottom of the outer tube 3124 is connected to a spring magnetic plate 31212 through a spring. A magnetic disk 314 that cooperates with the spring magnetic plate 31212 is installed in the piston plate 311. A self-propelled trolley 35 for driving the installation box 36 to rotate along the center of the support box 33 is installed at the end of the installation box 36 away from the support box 33. The self-propelled trolley 35 drives the installation box 36 to rotate along the center of the support box 33. The self-propelled trolley 35 can be composed of a tire, a sprocket, a chain, a motor and a reduction gear box, wherein the output end of the motor is connected to the reduction gear box, and after transmission through the reduction gear box, the sprocket is driven to rotate and the chain drives the tire to rotate. A bottom one-way valve 320 is installed on the top of the water tank 310.

[0039] like Figure 4 、 Figure 9 and Figure 10As shown, a lifting motor 37 is installed on one side of the installation box 36 close to the support box 33. The movable end of the lifting motor 37 is connected to a rotating shaft 318. An elastic membrane 319 is wound on the rotating shaft 318. The bottom of the elastic membrane 319 is fixedly connected to the top of the outer tube 3124. The crank pumping assembly 34 includes a motor frame 341. A crank motor 342 is installed on the outside of the motor frame 341. The movable end of the crank motor 342 passes through the motor frame 341 and is fixedly connected to the crank turntable 343. The front side wall of the crank turntable 343 rotates It is dynamically connected with a crank connecting rod 344, and the other end of the crank connecting rod 344 is rotatably connected to a limit slider 345. The limit slider 345 is slidingly connected to the inner side of the motor frame 341. The bottom of the limit slider 345 is fixedly connected with a piston push rod 346. An elastic membrane cloth 319 is installed on the top of the piston plate 311. The bottom of the piston push rod 346 is slidingly connected to the inside of the elastic membrane cloth 319. The lifting motor 37 drives the rotating shaft 318 to rotate, and then lowers the movable rod group 312 so that the movable rod group 312 is close to the piston plate 311.

[0040] Example 2, as Figure 4-Figure 9 As shown, this embodiment provides another technical solution based on the first embodiment. The water wheel 3125 is rotatably connected to the inner center position of the rotating joint 3123. The water wheel 3125 is fixedly connected to the rotating tube 3126. The outer wall of the rotating tube 3126 is fixedly connected to the spring tube 3128. The spring tube 3128 is connected to the sprinkler pipe 3127 through a spring. The end of the outer tube 3124 away from the support box 33 is fixedly connected to the tail limit plate 3129. The side walls of the tail limit plate 3129 and the sprinkler pipe 3127 close to each other are fixedly connected with the crown gear 31210 that cooperates with each other. A torsion spring connector 31211 is provided between the tail limit plate 3129 and the sprinkler pipe 3127. The outer wall of the rotating tube 3126 is fixedly connected to the outer gear 312 13. The top of the spring magnetic plate 31212 is fixedly connected to a toothed plate 31214, which meshes with the outer gear 31213. The top of the spring magnetic plate 31212 is fixedly connected to a limit rod 31215, which cooperates with the limit hole at the bottom of the rotating tube 3126. When the spring magnetic plate 31212 at the bottom of the movable rod assembly 312 approaches the speaker seat 313, the spring magnetic plate 31212 will quickly attract the magnetic disk 314, causing the spring magnetic plate 31212 to move downward relative to the outer tube 3124. At this time, the toothed plate 31214 and the spring magnetic plate 31212 move downward together, thereby driving the outer gear 31213 to rotate, so that the sprinkler head 31216 on the sprinkler pipe 3127 is horizontally positioned on the water surface and aligned with the floating mud layer.

[0041] like Figure 4-Figure 9As shown, the top of the piston plate 311 is fixedly connected to the speaker seat 313, the magnetic disk 314 is installed inside the speaker seat 313, the center of the magnetic disk 314 is connected to the spring telescopic rod 315 through a spring, the bottom of the spring telescopic rod 315 is fixedly connected to the bottom connecting ring 316, the top of the bottom connecting ring 316 is fixedly connected to the static rod limiting ring 317, the static rod limiting ring 317 is arranged above the piston plate 311, the outer wall of the water tank 310 is installed with the static rod group 38, the static rod group 38 includes a connecting membrane 382 connected to the outside of the water tank 310, the top of the connecting membrane 382 is fixedly connected There is a stationary rod 381. During the process of the magnetic disk 314 and the spring magnetic plate 31212 being attracted to each other, the spring telescopic rod 315 will be pressed to move downward, and then the spring telescopic rod 315 will be used to drive the bottom connecting ring 316 and the stationary rod limiting ring 317 to move downward together, so that the stationary rod 381 will be tightly attached to the stationary rod limiting ring 317 and the piston plate 311. Then the self-propelled vehicle 35 will drive the installation box 36, the piston plate 311 and the moving rod group 312 to rotate together. Since the stationary rod 381 is set on the outer surface of the water tank 310, the stationary rod 381 does not rotate but slides along the lower surface of the stationary rod limiting ring 317.

[0042] Working principle: When a small amount of sticky sludge appears on the top of the liquid surface of the biochemical pool due to the expansion of filamentous bacteria or aging sludge in the biochemical pool, the self-propelled trolley 35 will drive the installation box 36 to rotate along the center of the support box 33, and at the same time as the self-propelled trolley 35 drives the installation box 36 to rotate, the crank-type pumping assembly 34 drives the piston plate 311 to move up and down, wherein the movable end of the motor frame 341 of the crank-type pumping assembly 34 rotates to drive the crank turntable 343 to rotate, and further drives the top of the crank connecting rod 344 to rotate along the outer surface of the crank turntable 343, and the bottom of the crank connecting rod 344 moves up and down when the crank turntable 343 rotates, thereby dragging the limit slider 345 to rise and fall along the inner groove of the motor frame 341, and the limit slider 345 rises and falls when the limit slider 345 rises and falls. When the piston plate 311 is lowered, it will drive the piston plate 311 to rise and fall through the piston push rod 346. When the piston plate 311 rises, the water in the biochemical pool 1 will be drawn into the water storage tank 310 through the bottom one-way valve 320. When the piston plate 311 descends, the water is pressed into the sprinkler pipe 3127 through the connecting water pipe 3121 and the one-way water inlet valve 3122, and then sprayed onto the surface of the biochemical pool through the sprinkler nozzle 31216. The spraying of water can dilute the bubbles and grease in the floating mud, so that the density of the mixed sludge is increased to a density close to that of water, while reducing the porosity inside the flocs, thereby causing the floating mud to return to the bottom of the pool. The use of water in the biochemical pool 1 for spraying does not require the introduction of an external water source, thereby avoiding interference with the system stability inside the biochemical pool 1 caused by the external water source.

[0043] When the surface of the biochemical pool is covered with a high rate of floating mud, forming continuous mud waves, the lifting motor 37 drives the rotating shaft 318 to rotate, thereby lowering the movable rod assembly 312 so that the movable rod assembly 312 is close to the piston plate 311. When the spring magnetic plate 31212 at the bottom of the movable rod assembly 312 approaches the speaker seat 313, the spring magnetic plate 31212 will quickly attract the magnetic disk 314, causing the spring magnetic plate 31212 to move downward relative to the outer tube 3124. At this time, the gear plate 31214 and the spring magnetic plate 31212 move downward together, thereby driving the outer gear 31213 to rotate, so that the sprinkler head 31216 on the sprinkler pipe 3127 is horizontally positioned on the water surface and aligned with the floating mud layer, and the limiting rod 31215 leaves the limiting hole at the bottom of the rotating tube 3126. The rotation of the rotating tube 3126 is no longer limited. At the same time, during the process of the magnetic disk 314 and the spring magnetic plate 31212 being attracted, the spring telescopic rod 315 will be pressed to move downward, and then the spring telescopic rod 315 will be used to drive the bottom connecting ring 316 and the static rod limiting ring 317 to move downward together, so that the static rod 381 is tightly attached to the static rod limiting ring 317 and the piston plate 311. Then the self-propelled trolley 35 drives the installation box 36, the piston plate 311 and the moving rod group 312 to rotate together. Since the static rod 381 is set on the outer surface of the water tank 310, the static rod 381 does not rotate but slides along the lower surface of the static rod limiting ring 317. At the same time, driven by the self-propelled trolley 35, the moving rod group 312 rotates toward the direction of the static rod 381.

[0044] While the movable rod group 312 rotates, the crank-type pumping assembly 34 continues to drive the piston plate 311 to move up and down. Since the movable rod group 312 and the stationary rod 381 are both restricted on the piston plate 311 at this time, the movable rod group 312 and the stationary rod 381 are driven by the piston plate 311 to rise and fall together at the top of the liquid surface of the biochemical pool 1, and then the movable rod group 312 and the stationary rod 381 are used to generate water waves on the liquid surface. As the water waves are formed, the floating mud on the liquid surface of the biochemical pool 1 is driven by the water waves and moves away from the movable rod group 312 and the stationary rod 381, and the movable rod group 312 and the stationary rod 381 are close to each other, so the floating mud on the liquid surface eventually gathers between the stationary rod 381 and the moving rod group 312. Using water waves to aggregate the floating mud can not only make the floating mud aggregate in the form of a whole flocculent body, but also reduce the fragmentation pollution caused by mechanical force squeezing of the floating mud. At the same time, the mud piles generated by the floating mud aggregated by water waves can be uniformly recovered by the floating mud catcher 2. The floating mud will not stick to the self-propelled floating mud cleaner 3, causing it to pollute the biochemical pool due to long-term residue. The floating mud catcher 2 can use equipment such as a mud suction pump and a decanter.

[0045] When the piston plate 311 is driven to rise and fall rapidly by the magnetic disk 314, the water in the water tank 310 will be pressed into the movable rod assembly 312. After entering the movable rod assembly 312, the water first flows through the water wheel 3125. Since the rotating tube 3126 is no longer limited by the limiting rod 31215 at this time, when the water flows through the water wheel 3125, it will drive the water wheel 3125 to rotate. At the same time, the water wheel 3125 is fixed to the rotating tube 3126, so the rotating tube 3126 will be driven to rotate. When the rotating tube 3126 rotates, the sprinkler pipe 3127 is limited and slidably connected to the outer wall of the rotating tube 3126 and is connected to the spring in the spring tube 3128. Therefore, the sprinkler pipe 3127 will be driven to rotate together. When the sprinkler pipe 3127 rotates, the crown gear 31210 will press the sprinkler pipe 3127 to the inner wall of the outer tube 3124. As the sprinkler pipe 3127 expands and contracts, water flows out of the sprinkler head 31216. Simultaneously, as the sprinkler pipe 3127 rotates and expands, the water flows out in a rotating motion, continuously impacting the surface of the floating mud, quickly breaking its surface tension and dispersing it into flowable flocs. Furthermore, the floating mud is guided to flow in a directional manner, converging toward the mud collecting bucket in the center of the pool, thereby reducing the travel distance of the floating mud catcher 2 during salvage. Simultaneously, as the sprinkler pipe 3127 expands and contracts, the water flows simultaneously impacting the wall of the biochemical pool 1, preventing the floating mud from adhering to the pool wall and causing the problem of floating mud residue. As the piston plate 311 rises, no water flows through the water wheel 3125, and therefore the water wheel 3125 no longer rotates. Driven by the torsion spring in the torsion spring connector 31211, the sprinkler pipe 3127 quickly returns to its original position, allowing the water flow to be sprayed within a certain range, thereby avoiding waste of raw water in the biochemical pool 1.

[0046] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A device for cleaning and treating floating sludge in a biochemical pool of a sewage treatment plant, comprising a biochemical pool (1) and a floating sludge catcher (2) arranged above the biochemical pool (1), characterized in that: A self-propelled floating mud cleaner (3) is installed at the bottom center of the biochemical pool (1). The self-propelled floating mud cleaner (3) includes a support base (31) fixed at the bottom center of the biochemical pool (1). A support shaft (32) is fixedly connected to the middle position of the upper side wall of the support base (31). The top of the support shaft (32) is fixedly connected to a support box (33). A water storage tank (310) is fixedly connected to the outer wall of the support box (33). The inner limit sliding connection of the water storage tank (310) is connected to a piston plate (311). A crank-type pumping assembly (34) for driving the piston plate (311) to rise and fall is installed on the top of the support box (33). A mounting box (36) is rotatably connected to the center of the support box (33). A support platform (39) for supporting the mounting box (36) is provided between the mounting box (36) and the support box (33). A movable rod group (312) is provided inside the installation box (36), and the movable rod group (312) includes an outer tube (3124). One end of the outer tube (3124) close to the support box (33) is fixedly connected to a rotary joint (3123). A one-way water inlet valve (3122) is installed at the center of a side wall of the rotary joint (3123) close to the support box (33). The input end of the one-way water inlet valve (3122) is connected to a connecting water pipe (3121). The other end of the connecting water pipe (3121) passes through the upper side wall of the piston plate (311) and is connected to the water storage tank ( 310), the rotating joint (3123) is rotatably connected to a rotating tube (3126) at one end away from the supporting box (33), the outer wall of the rotating tube (3126) is limitedly slidably connected to a watering pipe (3127), a plurality of sprinkler heads (31216) distributed in a linear array are installed at the bottom of the watering pipe (3127), the bottom of the outer tube (3124) is connected to a spring magnetic plate (31212) via a spring, and a magnetic disk (314) matching the spring magnetic plate (31212) is installed in the piston plate (311); A self-propelled vehicle (35) for driving the installation box (36) to rotate along the center of the support box (33) is installed at one end of the installation box (36) away from the support box (33), and a bottom one-way valve (320) is installed at the top of the water storage tank (310); The top of the piston plate (311) is fixedly connected to a speaker seat (313), the magnetic disk (314) is installed inside the speaker seat (313), the center of the magnetic disk (314) is connected to a spring telescopic rod (315) via a spring, the bottom of the spring telescopic rod (315) is fixedly connected to a bottom connecting ring (316), the top of the bottom connecting ring (316) is fixedly connected to a static rod limiting ring (317), the static rod limiting ring (317) is arranged above the piston plate (311), and the outer wall of the water tank (310) is installed with a static rod group (38).

2. The device for cleaning and treating floating sludge in a biochemical pool of a sewage treatment plant according to claim 1, characterized in that: A water wheel (3125) is rotatably connected to the inner center of the rotating joint (3123); the water wheel (3125) is fixedly connected to the rotating tube (3126); a spring tube (3128) is fixedly connected to the outer wall of the rotating tube (3126); and the spring tube (3128) is connected to the sprinkler pipe (3127) via a spring.

3. The device for cleaning and treating floating sludge in a biochemical pool of a sewage treatment plant according to claim 1, characterized in that: One end of the outer tube (3124) away from the support box (33) is fixedly connected to a tail limit plate (3129); a crown gear (31210) that cooperates with each other is fixedly connected to a side wall of the tail limit plate (3129) and the sprinkler pipe (3127) that is close to each other; a torsion spring connector (31211) is provided between the tail limit plate (3129) and the sprinkler pipe (3127).

4. The device for cleaning and treating floating sludge in a biochemical pool of a sewage treatment plant according to claim 1, characterized in that: A lifting motor (37) is installed on one side of the installation box (36) close to the support box (33), and the movable end of the lifting motor (37) is connected to a rotating shaft (318), and an elastic membrane cloth (319) is wound on the rotating shaft (318), and the bottom of the elastic membrane cloth (319) is fixedly connected to the top of the outer tube (3124).

5. The device for cleaning and treating floating sludge in a biochemical pool of a sewage treatment plant according to claim 1, characterized in that: The outer wall of the rotating tube (3126) is fixedly connected to an external gear (31213), and the top of the spring magnetic plate (31212) is fixedly connected to a toothed plate (31214), and the toothed plate (31214) is meshed with the external gear (31213).

6. The device for cleaning and treating floating sludge in a biochemical pool of a sewage treatment plant according to claim 1, characterized in that: The top of the spring magnetic plate (31212) is fixedly connected to a limiting rod (31215), and the limiting rod (31215) cooperates with a limiting hole at the bottom of the rotating tube (3126).

7. The device for cleaning and treating floating sludge in a biochemical pool of a sewage treatment plant according to claim 1, characterized in that: The crank pumping assembly (34) includes a motor frame (341), a crank motor (342) is installed on the outside of the motor frame (341), the movable end of the crank motor (342) passes through the motor frame (341) and is fixedly connected to the crank turntable (343), the front side wall of the crank turntable (343) is rotatably connected to a crank connecting rod (344), the other end of the crank connecting rod (344) is rotatably connected to a limiting slider (345), the limiting slider (345) is slidably connected to the inside of the motor frame (341), the bottom of the limiting slider (345) is fixedly connected to a piston push rod (346), the top of the piston plate (311) is installed with an elastic membrane (319), and the bottom of the piston push rod (346) is slidably connected to the inside of the elastic membrane (319).

8. The device for cleaning and treating floating sludge in a biochemical pool of a sewage treatment plant according to claim 1, characterized in that: The static rod group (38) comprises a connecting membrane cloth (382) connected to the outside of the water storage tank (310), and the top of the connecting membrane cloth (382) is fixedly connected to the static rod (381).

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