A floating sludge treatment device for sewage plants

Abstract

The application discloses a kind of floating sludge treatment devices of sewage plant, belong to sewage treatment technical field.This kind of floating sludge treatment device of sewage plant, including drive motor, the output end of the drive motor is fixedly connected with self-cleaning scraper, the side surface of the self-cleaning scraper is provided with aeration mechanism, the side surface of the self-cleaning scraper is provided with suction pivot.The overall limit of self-cleaning scraper and self-cleaning design, through the reciprocating motion of cleaning rod assembly, automatically remove the dirt in the inner wall of scraper, maintain the continuous unobstructed of mud scraping channel, reduce artificial maintenance cost;Through the dynamic extrusion aeration design of aeration mechanism, utilize the periodic compression of extrusion block when the scraper rotates, linkage aeration bin and air supply system form non-powered aeration cycle, form synergy with the process of scraper mud;Through air passage check valve in aeration system constructs airflow one-way conduction barrier, prevent sewage backflow in aeration process, guarantee gas path clean and aeration function stability from system level.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewage treatment, and in particular to a floating sludge treatment device for a sewage plant. BACKGROUND

[0002] In the operation process of a sewage treatment plant, the treatment of floating sludge is an important and challenging problem. For example, in a common activated sludge process sewage treatment plant, due to water quality fluctuations, sludge aging, delayed sludge discharge, growth of filamentous bacteria, and uneven water flow, etc., floating sludge is often produced in the sewage treatment tank, especially in the anaerobic section, the anoxic section, and the secondary sedimentation tank. The accumulation of these floating sludge on the water surface can cause many adverse effects. The floating sludge can prevent oxygen in the air from entering the biochemical tank, inhibit the growth of activated sludge in the tank, and thus affect the effluent quality of the water plant, making it difficult to meet the standards.

[0003] A sewage treatment tank floating sludge residue edge collection device is disclosed in Chinese patent CN119038686B, which was granted on January 28, 2025. The device forms a water flow circulation from the middle position to the edge position of the tank at the water surface height position, which on the one hand transports the floating sludge residue located in the middle position to the edge position of the tank for collection, and on the other hand does not disturb the settled sludge at the bottom of the tank, causing secondary turbidity of the tank water, thereby improving the efficiency of floating sludge residue removal. However, the sewage treatment tank floating sludge residue edge collection device needs to be regularly cleaned to avoid the interference of floating sludge adhesion on the floating sludge treatment, and the efficiency is not high enough, affecting the continuous treatment of the floating sludge in the sewage tank. SUMMARY

[0004] The present application aims to provide a floating sludge treatment device for a sewage plant to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a floating sludge treatment device for a sewage plant, comprising a driving motor, a mounting rack is arranged on the lower surface of the driving motor, a sewage tank is arranged on the lower surface of the mounting rack, a self-cleaning scraper is fixedly connected to the output end of the driving motor, an aeration mechanism is arranged on one side surface of the self-cleaning scraper, and a suction shaft is arranged on one side surface of the self-cleaning scraper.

[0006] The self-cleaning scraper comprises a floating mud scraper mounted on the outer wall of one end of the mounting frame, a limiting sliding block fixedly connected to the floating mud scraper in the direction close to one side of the inner wall of the sewage pool, a limiting sliding groove matched with the limiting sliding block arranged on the inner wall of the sewage pool, the limiting sliding block being slidably connected to the surface of one side of the sewage pool through the limiting sliding groove, a driving rod slidably connected to the inner wall surface of the floating mud scraper, a cleaning reset spring fixedly connected to the outer surface of the driving rod, a cleaning rod fixedly connected to the surface of one side of the driving rod, a reset base attached to the surface of one side of the cleaning rod close to the driving rod, and a cleaning blade fixedly connected to the outer surface of the cleaning rod.

[0007] Further, the aeration mechanism comprises a pressing block attached to the lower surface of the floating mud scraper, a side surface of the pressing block being slidably connected to an aeration bin, the aeration bin being fixedly connected to the inner wall surface of the sewage pool, a reset spring fixedly connected to the lower surface of the pressing block, a gas supplement pipeline fixedly connected to the inner wall surface of the pressing block, a side surface of the aeration bin being fixedly connected to an aeration pipe, and a gas supplement bin matched with the gas supplement port arranged on the outer wall of the sewage pool.

[0008] Further, a gas passage one-way valve is arranged on the inner wall surface of the gas supplement port, the gas passage one-way valve comprising a valve pipeline, a sealing ring fixedly connected to the inner wall surface of the valve pipeline, a sealing block attached to the side surface of the sealing ring, a one-way reset spring fixedly connected to the side surface of the sealing block away from the sealing ring, a sealing base fixedly connected to the side surface of the one-way reset spring, and the sealing base being fixedly connected to the inner wall surface of the valve pipeline.

[0009] Further, the suction rotating shaft comprises a sealing sleeve fixedly connected to the bottom end surface of the floating mud scraper, a suction bin rotatably connected to the side surface of the sealing sleeve, a driving rotating shaft fixedly connected to the output shaft of the driving motor, a conversion shaft fixedly connected to the lower surface of the driving rotating shaft, a reciprocating rod slidably connected to the side surface of the conversion shaft, a water filtering block fixedly connected to the side surface of the reciprocating rod, an adsorption block fixedly connected to the lower surface of the water filtering block, a filtering pressing block fixedly connected to the lower surface of the adsorption block, a mounting ring fixedly connected to the inner wall surface of the water filtering block, a fixed rotating shaft fixedly connected to the inner wall surface of the mounting ring, a reset torsion spring attached to the outer surface of the fixed rotating shaft, a sealing plate matched with the reset torsion spring arranged on the outer wall of the fixed rotating shaft, a suction groove arranged in the inner wall of the suction bin, a sealing spring piece fixedly connected to the outer wall of one end of the suction groove, a sealing groove plate fixedly connected to the side surface of the sealing spring piece matched with the suction groove, and an electric valve fixedly connected to the lower surface of the suction bin.

[0010] Further, the outer surface of the cleaning blade is hollow, and the cleaning blade is provided with multiple groups equidistantly on the outer surface of the cleaning rod.

[0011] Further, the cleaning blade is connected with the air supplement port and the sewage pool through the cleaning rod, the cleaning return spring and the driving rod to form a linkage cleaning device, and one side section of the floating sludge scraper is in the shape of a "concave" character.

[0012] Further, the floating sludge scraper is provided with three groups symmetrically along the central axis of the driving motor, and the extrusion block is provided with six groups symmetrically along the central axis of the driving motor.

[0013] Further, the aeration pipe is provided with multiple groups equidistantly on the outer surface of the aeration pipe.

[0014] Further, the air passage one-way valve is arranged on the inner wall surface of the air supplement port and the aeration pipe, and the sealing block is fixedly connected with the inner wall surface of the valve pipe through the one-way return spring and the sealing base.

[0015] Further, the sealing plate is connected with the mounting ring to form a one-way sealing device through the return torsion spring, the one-way sealing device is provided with six groups symmetrically along the central axis of the water filtering block, and the side surface of the suction chamber is provided with a water leakage hole.

[0016] Different from the prior art, the beneficial effects of the sewage plant floating sludge treatment device are as follows,

[0017] 1. By the overall limiting and self-cleaning design of the self-cleaning scraper, the sliding cooperation of the limiting sliding block and the sewage pool is used to constrain the rotating track of the scraper, so that the deformation and fracture of the long scraper due to centrifugal force are avoided, and the reciprocating movement of the cleaning rod assembly is used to automatically remove the dirt on the inner wall of the scraper, so that the mud scraping channel is continuously unblocked, and the manual maintenance cost is reduced.

[0018] 2. By the dynamic extrusion aeration design of the aeration mechanism, the periodic compression of the extrusion block by the scraper rotation is used to form a non-powered aeration cycle of the linkage aeration chamber and the air supplement system, so that air is continuously injected into the sewage to promote the floating of the floating sludge, and the floating sludge aggregation efficiency is improved without additional aeration equipment, and the scraper mud scraping process is coordinated.

[0019] 3. By the one-way air flow control structure of the air passage one-way valve, a one-way air flow guide barrier is constructed in the aeration system to prevent sewage backflow caused by negative pressure in the aeration or air supplement process, so as to ensure the air path cleaning and aeration function stability from the system level and avoid equipment failure.

[0020] 4. Through the integrated solid-liquid separation design of the suction shaft, the reciprocating motion component mechanically presses the suction mud-water mixture, and the one-way sealing mechanism realizes the filtration and return of sewage and the directional discharge of floating sludge. The mixture after sludge scraping is automatically separated into solid and liquid and the floating sludge is collected, forming a fully automated process of "sludge scraping - aeration - separation - discharge", which significantly improves the continuity and efficiency of floating sludge treatment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0022] Figure 2 This is a schematic cross-sectional view of the wastewater tank structure of the present invention;

[0023] Figure 3 This is a schematic cross-sectional view of the extrusion block of the present invention;

[0024] Figure 4 This is a schematic cross-sectional view of the one-way valve in the airway of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure in which the self-cleaning scraper, aeration mechanism, and suction shaft of the present invention work together.

[0026] Figure 6 This is a schematic diagram of the interaction between the filter block and the sealing plate of the present invention;

[0027] Figure 7 For the present invention Figure 5 Enlarged structural diagram at point A in the middle;

[0028] Figure 8 This is a schematic diagram of the cooperative structure of the suction chamber and suction groove of the present invention;

[0029] Figure 9 For the present invention Figure 8 Enlarged structural diagram at point B.

[0030] In the figure: 1, drive motor; 2, mounting frame; 3, sewage tank; 4, self-cleaning scraper; 401, limit sliding block; 402, floating mud scraper; 403, drive rod; 404, cleaning reset spring; 405, cleaning rod; 406, reset base; 407, cleaning scraper; 5, aeration mechanism; 501, extrusion block; 502, aeration bin; 503, aeration reset spring; 504, air supplement pipeline; 505, air supplement port; 506, aeration pipe; 507, air supplement bin; 6, airway one-way valve; 601, valve pipeline; 602, sealing ring; 603, sealing block; 604, one-way reset spring; 605, sealing base; 7, suction shaft; 701, sealing shell; 702, suction bin; 703, drive shaft; 704, conversion shaft; 705, reciprocating rod; 706, water filtering block; 707, adsorption block; 708, filter pressing block; 709, mounting ring; 710, fixed shaft; 711, reset torsion spring; 712, closure plate; 713, suction groove; 714, sealing spring; 715, sealing groove plate; 716, electric valve. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0032] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0033] Embodiment one

[0034] Please refer to Figures 1-9 The present application provides a technical solution: including drive motor 1, the lower surface of drive motor 1 is provided with mounting frame 2, the lower surface of mounting frame 2 is provided with sewage tank 3, the output end of drive motor 1 is fixedly connected with self-cleaning scraper 4, one side surface of self-cleaning scraper 4 is provided with aeration mechanism 5, one side surface of self-cleaning scraper 4 is provided with suction shaft 7;

[0035] The self-cleaning scraper 4 comprises a floating sludge scraper 402 mounted on the outer wall of one end of the mounting frame 2, the floating sludge scraper 402 is fixedly connected with a limiting sliding block 401 in the direction close to one side of the inner wall of the sewage tank 3, the inner wall of the sewage tank 3 is provided with a limiting sliding groove matched with the limiting sliding block 401, the limiting sliding block 401 is slidably connected with the surface of one side of the sewage tank 3 through the limiting sliding groove, the inner wall surface of the floating sludge scraper 402 is slidably connected with a driving rod 403, the outer surface of the driving rod 403 is fixedly connected with a cleaning reset spring 404, the surface of one side of the driving rod 403 is fixedly connected with a cleaning rod 405, the surface close to one side of the driving rod 403 of the cleaning rod 405 is attached with a reset base 406, and the outer surface of the cleaning rod 405 is fixedly connected with a cleaning scraper 407.

[0036] In use, the power is connected to the inside of the device, the driving motor 1 is started, the driving motor 1 drives the floating sludge scraper 402 in the self-cleaning scraper 4 to rotate, and then drives the limiting sliding block 401 fixedly connected with one side surface of the floating sludge scraper 402 to slide along the limiting sliding groove opened on the inner wall of the sewage tank 3, so as to realize the limiting effect of the floating sludge scraper 402, prevent the bending of the floating sludge scraper 402 due to the centrifugal force in the rotating process caused by the too long floating sludge scraper 402, and prevent the breakage of the floating sludge scraper 402, in the rotating process, the porous suction opening on one side surface of the floating sludge scraper 402 sucks the floating sludge on the surface of the sewage tank 3, at this time, the driving rod 403 rotates under the limiting action of the air supplement opening 505 of the tank wall, and then drives the driving rod 403 and the cleaning rod 405 to slide along the inner wall surface of the floating sludge scraper 402, and then drives the cleaning scraper 407 fixedly connected with the outer surface of the cleaning rod 405 to slide along the inner wall surface of the floating sludge scraper 402, on the one hand, the inner wall surface of the floating sludge scraper 402 is cleaned, on the other hand, the cleaning scraper 407 is hollow in shape, which is convenient for the flow of water in the sewage and the suction of solid floating sludge, after the completion of single cleaning, the cleaning reset spring 404 attached to one side surface of the reset base 406 releases the elastic potential energy, at the same time, the driving rod 403 makes damping action on the cleaning reset spring 404, drives the driving rod 403 to realize the reset function, and prepares for the next cleaning.

[0037] Please refer to Figure 2 、 Figure 3 and Figure 5 , as shown in the drawings, the aeration mechanism 5 comprises a pressing block 501 attached to the lower surface of the floating sludge scraper 402, the pressing block 501 is slidably connected with an aeration bin 502 on one side surface, the aeration bin 502 is fixedly connected with the inner wall surface of the sewage tank 3, the lower surface of the pressing block 501 is fixedly connected with an aeration reset spring 503, the inner wall surface of the pressing block 501 is fixedly connected with an air supplement pipeline 504, one side surface of the aeration bin 502 is fixedly connected with an aeration pipe 506, and the outer wall of the sewage tank 3 is provided with an air supplement bin 507 matched with the air supplement opening 505.

[0038] In use, the floating sludge scraper 402 in the self-cleaning scraper 4 slides along the curved surface of one side surface of the extrusion block 501 in the aeration mechanism 5 during rotation, and under the action of the limiting sliding groove and the limiting sliding block 401, the extrusion block 501 is pressed to slide along the one side surface of the aeration bin 502 and the sewage tank 3, and the gas in the aeration bin 502 is extruded along the multiple groups of holes opened on the one side surface of the aeration pipeline 506 to aerate the sewage in the sewage tank 3, promote the separation of floating sludge and water in the sewage tank 3, and facilitate the scraping and suction of the floating sludge scraper 402. After the initial aeration is completed, the aeration reset spring 503 pushes the extrusion block 501 to slide along the inner wall surface of the aeration bin 502 to reset the extrusion block 501. After the reset is completed, due to the action of the airway one-way valve 6, the air supplement pipeline 504 fixedly connected to the inner wall surface of the extrusion block 501 is matched with the air supplement port 505 opened on the inner wall surface of the sewage tank 3. Again, under the action of the airway one-way valve 6, the air in the air supplement bin 507 supplements the air pressure of the aeration bin 502 to complete a single cycle of the aeration process. Under the mutual action of the three groups of floating sludge scrapers 402 and the six groups of extrusion blocks 501, three groups of extrusion blocks 501 are simultaneously inflated and continuously work in the state of simultaneously aerating the aeration pipeline 506 in actual work.

[0039] Please refer to Figure 3 and Figure 4 As shown in the drawings, the inner wall surface of the air supplement port 505 is provided with the airway one-way valve 6, and the airway one-way valve 6 comprises a valve pipeline 601. The inner wall surface of the valve pipeline 601 is fixedly connected with a sealing ring 602. The one side surface of the sealing ring 602 is attached with a sealing block 603. The one side surface of the sealing block 603 away from the sealing ring 602 is fixedly connected with a one-way reset spring 604. The one side surface of the one-way reset spring 604 is fixedly connected with a sealing base 605. The sealing base 605 is fixedly connected to the inner wall surface of the valve pipeline 601.

[0040] In use, during the aeration process and the inflation process, the airflow pushes the sealing block 603 to slide along one side surface of the sealing ring 602, at this time the sealing ring 602 releases the limiting effect on the sealing block 603, the sealing block 603 presses the one-way reset spring 604, the one-way reset spring 604 is limited by the sealing base 605, at this time, the airway one-way valve 6 forms a complete and unobstructed airway, which is convenient for the air in the aeration bin 502 to further pass through the aeration pipe 506 to perform aeration treatment on the pond water, and it is convenient for the gas in the air supplement bin 507 to pass through the airway one-way valve 6, the air supplement opening 505 fixedly connected to the inner wall surface of the extrusion block 501 and the air supplement pipeline 504 to perform air inflation and pressure compensation treatment on the inside of the aeration bin 502, when the aeration or inflation is completed, the water flow or the airflow reversely pushes the sealing block 603, and under the reset effect of the one-way reset spring 604, the sealing block 603 is tightly attached to the sealing ring 602, realizing the unidirectional airway unobstructed and the reverse airway closed, preventing damage to the device caused by sewage backflow due to negative pressure backflow.

[0041] Please refer to Figure 5 、 Figure 6 、 Figure 8 and Figure 9 , as shown in the figure, the suction shaft 7 comprises a sealing sleeve 701 fixedly connected to the bottom end surface of the floating sludge scraper 402, one side surface of the sealing sleeve 701 is rotatably connected with a suction bin 702, the output shaft of the driving motor 1 is fixedly connected with a driving shaft 703, the lower surface of the driving shaft 703 is fixedly connected with a conversion shaft 704, one side surface of the conversion shaft 704 is slidably connected with a reciprocating rod 705, one side surface of the reciprocating rod 705 is fixedly connected with a water filtering block 706, the lower surface of the water filtering block 706 is fixedly connected with an adsorption block 707, the lower surface of the adsorption block 707 is fixedly connected with a filter pressing block 708, the inner wall surface of the water filtering block 706 is fixedly connected with a mounting ring 709, the inner wall surface of the mounting ring 709 is fixedly connected with a fixed shaft 710, the outer side surface of the fixed shaft 710 is attached with a reset torsion spring 711, the outer wall of the fixed shaft 710 is provided with a sealing plate 712 adapted to the reset torsion spring 711, the inner wall of the suction bin 702 is provided with a suction groove 713, one end of the outer wall of the suction groove 713 is fixedly connected with a sealing spring piece 714, one side surface of the sealing spring piece 714 is fixedly connected with a sealing groove plate 715 adapted to the suction groove 713, and the lower surface of the suction bin 702 is fixedly connected with an electric valve 716.

[0042] In use, the floating sludge in the sewage tank 3 is affected by the self-cleaning scraper 4, and the mixture of the floating sludge and water is sucked into the inner wall surface of the sealing sleeve 701, is adsorbed through the suction groove 713 on one side surface of the suction chamber 702, and enters the inner wall surface of the suction chamber 702. At this time, the sludge-water mixture pushes the sealing groove plate 715, and the sealing groove plate 715 and one side surface of the suction groove 713 form an included angle, and the sludge-water mixture enters the inside of the suction chamber 702. When the suction is completed, the sealing spring 714 releases the elastic potential to push the sealing groove plate 715 to seal the suction groove 713, preventing backflow. At the same time, the driving motor 1 drives the driving shaft 703 to rotate, the driving shaft 703 drives the conversion shaft 704 to rotate, the track on the outer side surface of the conversion shaft 704 limits the reciprocating rod 705, and then drives the reciprocating rod 705 to move along the inner wall surface of the suction chamber 702 like a piston, and then pushes the water filter block 706, the adsorption block 707 and the filter pressing block 708 fixedly connected to one side surface of the reciprocating rod 705 to press the sludge-water mixture in the suction chamber 702, the water-soluble impurities are adsorbed by the adsorption block 707, and the sewage passes through the water filter block 706. The sewage pushes the two groups of semi-circular closure plates 712, the closure plates 712 rotate along the central axis of the fixed shaft 710 through the limiting action of the mounting ring 709 and the fixed shaft 710, pull the reset torsion spring 711, and the reset torsion spring 711 accumulates elastic potential. After the sewage passes, the reset torsion spring 711 releases the elastic potential to pull the two groups of closure plates 712 to rotate, and the closure plates 712 interact with the water filter block 706 and the mounting ring 709 to realize the function of a one-way channel, preventing the sewage from backflowing under the action of gravity. The sewage returns to the sewage tank 3 through the drainage hole on one side surface of the suction chamber 702, and the floating sludge is treated by the filter pressing block 708, the electric valve 716 is opened, the floating sludge is discharged from the suction chamber 702 along the electric valve 716, and the treatment of the floating sludge in the sludge-water mixture in the sewage tank 3 is realized.

[0043] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent replacements or changes to the technical solutions and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered by the protection scope of the present application.

Claims

1. A floating sludge treatment device for sewage plants, comprising a drive motor (1), characterized in that: The lower surface of the driving motor (1) is provided with a mounting frame (2), the lower surface of the mounting frame (2) is provided with a sewage pool (3), the output end of the driving motor (1) is fixedly connected with a self-cleaning scraper (4), one side surface of the self-cleaning scraper (4) is provided with an aeration mechanism (5), and one side surface of the self-cleaning scraper (4) is provided with a suction rotating shaft (7). The self-cleaning scraper (4) comprises a floating mud scraper (402) mounted on one end of the outer wall of the mounting frame (2), the floating mud scraper (402) is fixedly connected with a limiting sliding block (401) in the direction close to one side of the inner wall of the sewage pool (3), the inner wall of the sewage pool (3) is provided with a limiting sliding groove matched with the limiting sliding block (401), the limiting sliding block (401) is slidably connected with one side surface of the sewage pool (3) through the limiting sliding groove, the inner wall surface of the floating mud scraper (402) is slidably connected with a driving rod (403), the outer side surface of the driving rod (403) is fixedly connected with a cleaning reset spring (404), one side surface of the driving rod (403) is fixedly connected with a cleaning rod (405), the side surface close to the driving rod (403) of the cleaning rod (405) is attached with a reset base (406), the outer side surface of the cleaning rod (405) is fixedly connected with a cleaning scraper (407), the aeration mechanism (5) comprises an extrusion block (501), the extrusion block (501) is attached to the lower surface of the floating mud scraper (402), one side surface of the extrusion block (501) is slidably connected with an aeration bin (502), the aeration bin (502) is fixedly connected to the inner wall surface of the sewage pool (3), the lower surface of the extrusion block (501) is fixedly connected with an aeration reset spring (503), the inner wall surface of the extrusion block (501) is fixedly connected with a gas supplement pipeline (504), one side surface of the aeration bin (502) is fixedly connected with an aeration pipe (506), the outer wall of the sewage pool (3) is provided with a gas supplement bin (507) matched with the gas supplement opening (505), the cleaning scraper (407), the cleaning reset spring (404) and the driving rod (403) constitute a linkage cleaning device with the gas supplement opening (505) and the sewage pool (3), and one side section of the floating mud scraper (402) is in the shape of a "concave" character.

2. A floating sludge treatment apparatus for a sewage plant according to claim 1, characterised in that: The inner wall surface of the gas supplement opening (505) is provided with an air passage one-way valve (6), the air passage one-way valve (6) comprises a valve pipe (601), the inner wall surface of the valve pipe (601) is fixedly connected with a sealing ring (602), one side surface of the sealing ring (602) is attached with a sealing block (603), one side surface of the sealing block (603) away from the sealing ring (602) is fixedly connected with a one-way reset spring (604), one side surface of the one-way reset spring (604) is fixedly connected with a sealing base (605), and the sealing base (605) is fixedly connected to the inner wall surface of the valve pipe (601).

3. A floating sludge treatment apparatus for a sewage plant according to claim 1, characterised in that: The suction rotating shaft (7) comprises a sealing sleeve (701) fixedly connected to the bottom end surface of the floating mud scraper (402), one side surface of the sealing sleeve (701) is rotatably connected with a suction bin (702), the output shaft of the driving motor (1) is fixedly connected with a driving rotating shaft (703), the lower surface of the driving rotating shaft (703) is fixedly connected with a conversion shaft (704), one side surface of the conversion shaft (704) is slidably connected with a reciprocating rod (705), one side surface of the reciprocating rod (705) is fixedly connected with a water filtering block (706), the lower surface of the water filtering block (706) is fixedly connected with an adsorption block (707), the lower surface of the adsorption block (707) is fixedly connected with a filter pressing block (708), the inner wall surface of the water filtering block (706) is fixedly connected with a mounting ring (709), the inner wall surface of the mounting ring (709) is fixedly connected with a fixed rotating shaft (710), the outer side surface of the fixed rotating shaft (710) is attached with a reset torsion spring (711), the outer wall of the fixed rotating shaft (710) is provided with a sealing plate (712) adapted to the reset torsion spring (711), the inner wall of the suction bin (702) is provided with a suction groove (713), one end of the outer wall of the suction groove (713) is fixedly connected with a sealing spring plate (714), one side surface of the sealing spring plate (714) is fixedly connected with a sealing groove plate (715) adapted to the suction groove (713), the lower surface of the suction bin (702) is fixedly connected with an electric valve (716).

4. A floating sludge treatment apparatus for a sewage plant according to claim 1, characterised in that: The outer side surface of the cleaning blade (407) is in a hollow shape, and the cleaning blade (407) is provided with multiple groups equidistantly on the outer side surface of the cleaning rod (405).

5. A floating sludge treatment apparatus for a sewage plant according to claim 1, characterised in that: The floating mud scraper (402) is provided with three groups symmetrically about the central axis of the driving motor (1), and the extrusion block (501) is provided with six groups symmetrically about the central axis of the driving motor (1).

6. A floating sludge treatment apparatus for a sewage plant according to claim 1, characterised in that: The aeration pipe (506) is provided with aeration holes on one side surface, and the aeration pipe (506) is provided with multiple groups equidistantly on the outer side surface of the aeration pipe (506).

7. A floating sludge treatment apparatus for a sewage plant according to claim 2, characterised in that: The airway one-way valve (6) is arranged on the inner wall surface of the air supplementing opening (505) and the aeration pipe (506), and the sealing block (603) is fixedly connected with the inner wall surface of the valve pipe (601) through the one-way reset spring (604) and the sealing base (605).

8. A floating sludge treatment apparatus for a sewage plant according to claim 3, characterised in that: The sealing plate (712) and the mounting ring (709) constitute a one-way sealing device through the reset torsion spring (711), the one-way sealing device is provided with six groups symmetrically about the central axis of the water filtering block (706), and the one side surface of the suction bin (702) is provided with a water leakage hole.

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