Energy-saving type mud recycling device based on water pollution

The modularly designed biological aeration tank utilizes the combined motion of electrically controlled telescopic rods and wheel sets to achieve semi-fluidization of the biological filter media and turbulent water flow. This solves the problems of clogging of static filter media layers and high aeration energy consumption, improving treatment efficiency and energy saving, and is suitable for the continuous treatment of industrial sludge.

CN122010289APending Publication Date: 2026-05-12ZHEJIANG JINYI PANJIN ENVIRONMENTAL PROTECTION (GROUP) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG JINYI PANJIN ENVIRONMENTAL PROTECTION (GROUP) CO LTD
Filing Date
2026-02-24
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing biological filter-type sludge water treatment devices suffer from problems such as easy clogging of static filter media, high energy consumption of aeration-driven systems, and high maintenance costs of integrated filter media support structures, resulting in low treatment efficiency, high energy consumption, and discontinuous operation.

Method used

The modular biological aeration tank, through the cooperation of electrically controlled telescopic rods and V-shaped grooves, combined with the setting of wheel sets and inclined guide blocks, enables the material box to perform a compound motion of rotation and vertical lifting, forming a semi-fluidized filter media state. This achieves physical friction and turbulent water flow of the biological filter media, reduces the risk of clogging, improves mass transfer efficiency and energy saving, and supports local maintenance.

Benefits of technology

It effectively reduces filter media clogging cycles, improves treatment efficiency and energy saving rate, ensures continuous operation, and meets the continuous treatment needs of industrial sludge water.

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Abstract

The invention discloses an energy-saving type slurry recycling device based on water pollution, and relates to the technical field of slurry recycling, the energy-saving type slurry recycling device comprises a biological aeration tank and a first assembly installed on the biological aeration tank, the first assembly comprises a material bin arranged in the biological aeration tank, and the material bin is fixedly connected in the biological aeration tank through bolts; the eight material boxes are fixed between the partition plates in a sliding clamping mode, each material box independently bears a biological filter material, and a drawing groove is formed in the side face of each material box; if a filter material in a certain material box is blocked, fails or needs to be supplemented with microorganisms, the whole material bin can be conveniently maintained in two ways: one way is that the whole material bin is taken out to replace a plurality of groups of material boxes, and the other way is that a drawer opening is singly formed in the side wall of the biological aeration tank, and the faulted material box is singly pulled out without shutdown or disassembly of a device main body; due to the modular design, the downtime during maintenance of the device is shortened, and the operation continuity is improved; the device is especially suitable for scenes where industrial muddy water is continuously generated and needs to be continuously treated, and sewage treatment interruption caused by maintenance is avoided.
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Description

Technical Field

[0001] This invention relates to the field of mud recycling technology, specifically to an energy-saving mud recycling device based on water pollution. Background Technology

[0002] In industrial production, municipal engineering, and other fields, the discharge and treatment of mud slurry is a crucial link in environmental protection and resource recovery. Mud slurry contains pollutants such as organic matter, heavy metals, and suspended flocculents. Direct discharge of these pollutants can cause ecological problems such as water pollution and soil compaction. Purifying and recycling it not only reduces pollution risks but also conserves water resources, aligning with the development requirements of "energy conservation and emission reduction." Currently, biological treatment methods have become the mainstream technology for mud slurry purification due to their advantages of thorough pollutant degradation and minimal secondary pollution. Among these, treatment devices centered on biofilters are the most widely used. These devices use filter media to adsorb microorganisms, forming a biofilm that degrades organic matter and toxic substances while retaining suspended solids.

[0003] Existing biological filter-type sludge wastewater treatment devices mainly fall into two technical categories based on the fluidization state of the filter media and the driving method: One type employs a static filter media layer structure, where the filter media is fixedly filled within the filter tank, relying on gravity to allow the sludge wastewater to permeate from top to bottom through the filter media layer, combined with a single-pore filter plate to retain suspended solids; the other type, to address the clogging problem of static filter media layers, adopts an aeration-driven fluidization structure, using a high-power aeration pump at the bottom to generate airflow, driving the filter media into a semi-fluidized state and enhancing the contact between the filter media and the wastewater. Furthermore, the existing devices mostly use an integral design for the filter media support structure, with the filter media filled within a single filter chamber, requiring complete disassembly for maintenance.

[0004] However, the aforementioned existing technologies still have many unresolved core defects in practical applications, specifically as follows: Firstly, static filter media layers are prone to clogging, their treatment efficiency declines rapidly, and they lack anti-clogging and self-cleaning capabilities. In existing static filter media systems, suspended flocculents and sticky sludge in the sludge water easily adhere to the surface and pores of the filter media, forming sludge caking. This leads to pore blockage and a surge in water flow resistance, requiring shutdown and cleaning of the filter media every 7-10 days, resulting in high maintenance frequency. Simultaneously, the biofilm cannot be renewed through physical friction when the filter media is static. The aged outer layer of the biofilm, with decreased activity, continues to adhere to the filter media surface, causing a significant decrease in the degradation efficiency of organic matter and heavy metals over time, leading to a decline in treatment efficiency after prolonged operation. Furthermore, the water flow in the static filter media layer is laminar, with wastewater forming a stable "water film barrier" on the filter media surface. This makes it difficult for pollutants to quickly diffuse into the biofilm, resulting in low mass transfer efficiency, long treatment cycles, and an inability to meet the demands of high-efficiency recovery.

[0005] Secondly, aeration-driven fluidized bed structures have high energy consumption, poor operational stability, and insufficient energy efficiency. To address the clogging issue of static filter media, existing technologies employ high-power aeration pumps to drive fluidization. However, aeration energy consumption accounts for over 60% of the total energy consumption of the system, reaching 0.8-1.2 kWh per ton of water treated, contradicting the development goal of "energy-saving recycling." Furthermore, aeration intensity is difficult to control precisely; too low an intensity results in insufficient fluidization and continued clogging in some areas, while too high an intensity leads to violent collisions and breakage of the filter media. Simultaneously, a large number of air bubbles impact the biofilm, causing microbial loss and further reducing treatment efficiency. In addition, the high-frequency noise generated during aeration causes environmental interference, requiring additional sound insulation facilities and increasing equipment investment costs.

[0006] Thirdly, the integrated filter media support structure has high maintenance costs and makes it difficult to guarantee continuous operation. Existing equipment typically uses filter media packed into an integrated filter chamber, lacking a modular design. When localized filter media becomes clogged, ineffective, or requires microbial replenishment, the entire filter tank must be disassembled and the media emptied for replacement, resulting in lengthy downtime for each maintenance operation. Even in units with partitioned designs, the entire filter media chamber must be removed for operation, making "localized maintenance for localized failures" impossible. This deficiency renders the equipment extremely unsuitable for scenarios involving the continuous generation and treatment of industrial sludge. Frequent downtime not only reduces treatment efficiency but also poses additional environmental risks due to the temporary storage of sludge.

[0007] Therefore, this invention proposes an energy-saving mud recycling device based on water pollution to solve the above problems. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention provides an energy-saving mud recycling device based on water pollution, thereby solving the problems mentioned in the background section.

[0009] To achieve the above objectives, the present invention provides the following technical solution: an energy-saving mud recycling device based on water pollution, comprising: a biological aeration tank and a first component installed thereon, the first component comprising a material bin disposed in the biological aeration tank, the material bin being fixedly connected to the biological aeration tank by bolts, the bottom of the material bin having a filter hole A, and a base being fixedly connected to the center of the bottom of the material bin; The first component also includes a filter cover that is fixedly connected to the material silo by bolts. A limit hole is opened at the center of the filter cover. An auxiliary tube is rotatably connected to the base. A spacer plate is fixedly connected to the outer ring of the auxiliary tube. Multiple V-shaped grooves are opened around the inner wall of the auxiliary tube. It also includes a second component set within the first component.

[0010] Preferably, the biological aeration tank is fixedly connected to a top cover, and the bottom of the biological aeration tank is provided with a discharge pipe.

[0011] Preferably, the first component also includes an electrically controlled telescopic rod fixedly connected to the middle of the base. An external control box is fixedly connected to one end of the electrically controlled telescopic rod away from the base. The external control box is slidably connected in the limiting hole. A return spring is provided on the outer ring of the electrically controlled telescopic rod. The two ends of the return spring are fixedly connected to the base and the external control box, respectively. A slider is fixedly connected to the bottom of the outer ring of the external control box.

[0012] Preferably, eight spacers are arranged around the center of the auxiliary tube, and the V-shaped grooves are connected and interconnected.

[0013] Preferably, the electrically controlled telescopic rod is electrically controlled by an external controller, and multiple sliders are arranged around the external control box, the number of which is consistent with the number of V-grooves opened in the auxiliary tube.

[0014] Preferably, the second component includes a material box that is slidably snapped between two partition plates, wherein the material box has a pull-out groove on the arc surface of the side away from the center of the auxiliary tube, and a filter hole B is formed on the bottom surface of the material box; It also includes a third component located below the second component.

[0015] Preferably, eight material boxes are arranged around the center of the auxiliary pipe, and each material box contains biological filter media for biological treatment of muddy water.

[0016] Preferably, the third component includes a positioning frame fixedly connected to the bottom of the material box, a set of wheels rotatably connected inside the positioning frame, and an inclined guide block fixedly connected to the bottom of the material bin.

[0017] Preferably, the positioning frame is provided with eight, the wheel set is composed of three wheel rings, and the inclined guide block is provided with eight around the center of the material bin. The inclined guide block is a trapezoidal block with one inclined side, and the inclined guide block is located directly below the wheel set on the same vertical line.

[0018] Compared with existing technologies, the present invention provides an energy-saving mud recycling device based on water pollution, which has the following beneficial effects: By combining the electrically controlled telescopic rod with the V-groove, and setting up the wheel assembly and inclined guide blocks, the material box performs a compound motion of rotation and vertical lifting, causing the internal biological filter media to form a semi-fluidized state. The physical friction generated by the rolling collision of the filter media can peel off the suspended matter such as flocculent matter and sticky sludge attached to the surface, while allowing the outer layer of the aged biofilm to detach and make room for the growth of new biofilm. This reduces the risk of filter media clogging at the source, shortens the filter media cleaning cycle, and the collision of the filter media breaks down the water film barrier, allowing pollutants such as organic matter and heavy metals in the sludge water to quickly diffuse to the surface of the biofilm. The semi-fluidized state of the filter media eliminates the need for aeration and oxygenation. The compound motion of the material box drives the water flow turbulence, which can meet the biofilm's mass transfer efficiency requirements, improve energy saving rate, and reduce long-term operating costs.

[0019] Furthermore, the rotation and movement of the material box breaks the laminar flow state of the traditional static filter media layer, creating localized turbulent flow within the biological aeration tank. This turbulence tears apart the "water film barrier" formed by wastewater on the filter media surface, allowing pollutants in the sludge to quickly diffuse to the biofilm surface, improving contact efficiency. At the same time, the turbulence allows wastewater to flow fully within the material box, avoiding the problem of partial contact and idleness of the filter media, ensuring that each filter media particle can participate in degradation and adsorption, thus improving filter media utilization. The rotation of the material box, combined with the vertical distribution of filter holes B and A, creates a spiral downward flow path from the filter cover to the bottom of the material chamber, extending the contact time between wastewater and the filter media. This also prevents short-circuiting of the water flow, i.e., wastewater flowing directly to the discharge pipe without sufficient treatment, ensuring a stable suspended solids concentration in the treated water and meeting the standards for sludge recycling and reuse.

[0020] Furthermore, with the cooperation of the slider and the V-groove, the vertical telescopic motion is converted into the rotational motion of the auxiliary tube, eliminating the need for an additional motor to drive the rotating components; and the return spring can store compressive potential energy, which drives the outer control box and slider to actively reset after the electric telescopic rod is de-energized, reducing the energy consumption of the electric control system.

[0021] The filter cover first intercepts large suspended particles, the filter holes B in the material box trap medium-sized impurities, and the filter holes A at the bottom of the material hopper finally intercept fine flocculent matter, avoiding overload and clogging of a single filter layer; moreover, the filter holes B and filter holes A are vertically distributed, making the water flow path more reasonable, further reducing the probability of pore blockage, and preventing flocculent matter from adhering to the biological filter media and affecting the mud water treatment effect.

[0022] Eight material boxes are fixed between the partition plates by sliding snap-fit. Each material box independently carries biological filter media and has a pull-out groove on the side. If the filter media in a certain material box becomes clogged, fails, or needs to be replenished with microorganisms, maintenance can be carried out conveniently in two ways: one is to remove the entire material silo and replace multiple sets of material boxes; the other is to install a separate drawer on the side wall of the biological aeration tank to pull out the faulty material box individually, without stopping the machine or disassembling the main body of the device. The modular design reduces downtime during device maintenance and improves operational continuity. It is especially suitable for scenarios where industrial sludge is continuously generated and needs continuous treatment, avoiding wastewater treatment interruptions due to maintenance. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a diagram showing the internal structure of the biological aeration tank of the present invention; Figure 3 This is a cross-sectional view of the first component of the present invention; Figure 4 This is a cross-sectional view of the second component of the present invention; Figure 5 This is a disassembled structural diagram of the first component of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle; Figure 7 This is a partial cross-sectional view of the first component of the present invention; Figure 8 This is a structural diagram of the second component of the present invention; Figure 9 This is a structural diagram of the third component of the present invention; Figure 10 This is a partial structural diagram of the third component of the present invention.

[0024] In the picture: 11. Biological aeration tank; 12. Top cover; 13. Discharge pipe; 21. Material bin; 22. Filter hole A; 23. Base; 24. Filter cover; 25. Limiting hole; 26. Auxiliary pipe; 27. Partition plate; 28. V-groove; 29. ​​Electrically controlled telescopic rod; 210. Return spring; 211. External control box; 212. Slider; 31. Material box; 32. Pull-out slot; 33. Filter hole B; 41. Positioning frame; 42. Wheel set; 43. Angled guide block. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0027] Example Please refer to Figures 1 to 7 As shown: To address the problems mentioned in the technical solutions, this application provides an energy-saving mud recycling device based on water pollution, comprising: a biological aeration tank 11 and a first component installed thereon. The biological aeration tank 11 is used to degrade organic matter and intercept suspended solids in the supernatant after mud water treatment. The first component includes a material hopper 21 disposed within the biological aeration tank 11. The material hopper 21 is fixedly connected to the biological aeration tank 11 by bolts. A filter hole A22 is provided at the bottom of the material hopper 21. The filter hole A22 is used to intercept flocculent matter in the supernatant. A base 23 is fixedly connected at the center of the bottom of the material hopper 21. The first component also includes a filter cover 24 fixedly connected to the material bin 21 by bolts. The filter cover 24 is mesh-like to allow water to flow through. A limiting hole 25 is opened at the center of the filter cover 24. An auxiliary pipe 26 is rotatably connected to the base 23. A spacer plate 27 is fixedly connected to the outer ring of the auxiliary pipe 26. Multiple V-shaped grooves 28 are opened around the inner wall of the auxiliary pipe 26. It also includes a second component set within the first component.

[0028] A top cover 12 is fixedly connected to the top of the biological aeration tank 11. The top cover 12 can be opened symmetrically to input the sludge to be treated into the biological aeration tank 11. A discharge pipe 13 is provided at the bottom of the biological aeration tank 11 for outputting the sludge after biological treatment.

[0029] The first component also includes an electrically controlled telescopic rod 29 fixedly connected to the middle of the base 23. The electrically controlled telescopic rod 29 controls the lifting and lowering movement of the outer control box 211. The outer control box 211 is fixedly connected to one end of the electrically controlled telescopic rod 29 away from the base 23. The outer control box 211 is slidably connected in a limiting hole 25, which is used to limit the vertical movement of the outer control box 211. A return spring 210 is provided on the outer ring of the electrically controlled telescopic rod 29. The two ends of the return spring 210 are respectively fixed to the base 23 and the outer control box 211. A slider 212 is fixedly connected to the bottom of the outer ring of the outer control box 211. The slider 212 cooperates with the V-groove 28. When the slider 212 moves down into the material bin 21 along with the outer control box 211, the slider 212 is slidably connected in the V-groove 28. As the slider 212 moves down, it abuts against the V-groove 28, generating an interaction force that drives the auxiliary tube 26 to rotate. Under the action of the V-groove, after the slider 212 moves down, it actively resets under the restoring force of the return spring 210. The spacer plate 27 has eight sections arranged around the center of the auxiliary tube 26, and the V-shaped grooves 28 are connected and interconnected.

[0030] The electric telescopic rod 29 is electrically controlled by an external controller. Multiple sliders 212 are arranged around the external control box 211, and the number of sliders 212 is the same as the number of V-shaped grooves 28 opened in the auxiliary tube 26.

[0031] It also includes a third component located below the second component.

[0032] A further embodiment: Please refer to Figures 8 to 10 As shown: The second component includes a material box 31 that slides between two partition plates 27. The material box 31 cooperates with the partition plates 27 to divide the material in the material bin 21 into multiple small modules. A pull-out groove 32 is provided on the arc surface of the material box 31 away from the center of the auxiliary pipe 26. When replacing or processing the material box 31, the entire material bin 21 can be taken out to replace one or more modules of the material box 31. Alternatively, depending on the specific implementation, a drawer opening is provided on the side wall of the biological aeration tank 11. The size of the drawer opening is adapted to the volume of the material box 31, so that a single module of the material box 31 can be taken out for material processing. The pull-out groove 32 is used for manual pulling to facilitate the replacement of the material box 31. A filter hole B33 is provided on the bottom surface of the material box 31. The filter hole B33 is used to intercept impurities in the water. The position of the filter hole B33 is perpendicular to the filter hole A22, which is used for the flow of water to be treated. It also includes a third component located below the second component.

[0033] Eight material boxes 31 are arranged around the center of the auxiliary pipe 26. The material boxes 31 are equipped with biological filter media for biological treatment of mud water. The filter media adsorbs microorganisms to form a biofilm to degrade and adsorb toxic substances in the mud water.

[0034] The third component includes a positioning frame 41 fixedly connected to the bottom of the material box 31. The rotation of the partition plate 27 abuts against the material box 31, which is locked in the frame, and rotates at a set angle around the center of the material bin 21. The rotation of the material box 31 causes the wheel assembly 42 at its bottom to move up along the inclined surface of the inclined guide block 43, and then fall under the action of the height difference of the inclined guide block 43, so that the material box 31 moves vertically up and down within the partition plate 27, generating vibration, thereby making the material in the material box 31 semi-fluid, increasing the friction intensity of the material in the material box 31, and the rolling collision of the filter material causes the aged biofilm on its surface to fall off, accelerating biofilm renewal and enhancing the self-cleaning effect. The wheel assembly 42 is rotatably connected inside the positioning frame 41, and the inclined guide block 43 is fixedly connected to the bottom of the material bin 21.

[0035] The positioning frame 41 has eight parts, the wheel set 42 consists of three wheel rings, and the inclined guide block 43 has eight parts arranged around the center of the material bin 21. The inclined guide block 43 is a trapezoidal block with one inclined side, and the inclined guide block 43 is located directly below the wheel set 42 on the same vertical line.

[0036] The working principle of all the content in the above embodiments is as follows: When using, refer to Figures 1 to 3 , Figures 5 to 7 As shown, the mud slurry enters the biological aeration tank 11 through the top cover 12. When the mud slurry is biologically treated, the electric telescopic rod 29 is energized and shortened, pushing the outer control box 211 to move vertically downward along the limiting hole 25. At this time, the reset spring 210 is compressed and stores elastic potential energy. When the outer control box 211 moves downward, the slider 212 at the bottom of its outer ring slides downward along the inclined surface of one side of the V-shaped groove 28. Through the force of the inclined surfaces resisting each other, the auxiliary pipe 26 is pushed to rotate clockwise around the axis of the base 23. Furthermore, when the slider 212 moves to the bottom of the V-groove 28, under the action of the rising and tilting surface on the other side of the V-groove, the slider 212 moves upward along the other side of the V-groove 28, completing the reset of the slider 212 and the rotation of the auxiliary tube 26. At the same time, the partition plate 27 fixed on the outer ring of the auxiliary tube 26 rotates with it, causing the material box 31, which is clamped between the partition plates 27, to make a circular motion around the axis of the material bin 21. refer to Figures 8 to 10As shown, while the material box 31 rotates under the drive of the partition plate 27, the positioning frame 41 at the bottom of the material box 31 drives the wheel set 42 to rotate synchronously in the same direction as the material box 31. When the wheel set 42 contacts the inclined surface of the inclined guide block 43, it rolls upward along the inclined surface. As the inclined surface gradually rises, the material box 31 is lifted. After the wheel set 42 passes the top of the inclined surface, it falls down along the other side of the inclined guide block 43 under the action of force, causing the material box 31 to fall vertically. The material box 31 generates high-frequency vibration in the combined motion of rotation and lifting. The internal biological filter media rolls and collides to form a semi-fluidized state, which further causes the friction between the filter media to peel off the suspended matter attached to the surface; and the aging outer layer of the biofilm to collide and fall off, promoting the growth of active microorganisms in the inner layer and improving the degradation efficiency of toxic substances in the mud water, such as heavy metals and recalcitrant organic matter. The vibration further causes local water turbulence, strengthens the contact between sewage and biofilm, and accelerates the degradation of organic matter. Multiple material boxes 31 work independently. If the filter material in a certain material box 31 is clogged or fails, it can be removed and replaced individually through the pull-out slot 32 for easy access. The treated mud and water are discharged through the discharge pipe 13 for subsequent recycling.

[0037] It should be noted that the treatment of flocculent matter in muddy water is enhanced by existing air flotation separation technology. Microbubbles adhere to the flocculent matter and float to the surface of the liquid, and the slag is scraped off periodically by a slag scraper. Therefore, the treatment process will not be described in detail.

[0038] Through the cooperation of the electrically controlled telescopic rod 29 and the V-groove 28, and the arrangement of the wheel assembly 42 and the inclined guide block 43, the material box 31 performs a compound motion of rotation and vertical lifting, so that the internal biological filter media forms a semi-fluidized state. The filter media generates physical friction during rolling collisions, which can peel off the suspended matter such as flocculent matter and sticky sludge attached to the surface. At the same time, it allows the outer layer of the aged biofilm to fall off, making room for the growth of new biofilm. This reduces the risk of filter media clogging from the root, shortens the filter media cleaning cycle, and the collision of the filter media breaks the water film barrier, allowing pollutants such as organic matter and heavy metals in the mud water to quickly diffuse to the surface of the biofilm. The semi-fluidized state of the filter media does not require aeration and oxygenation. The compound motion of the material box 31 drives the water flow turbulence, which can meet the biofilm's mass transfer efficiency requirements, improve energy saving rate, and reduce long-term operating costs.

[0039] Furthermore, the rotation and movement of the material box 31 breaks the laminar flow state of the traditional static filter media layer, forming local turbulent water flow in the biological aeration tank 11. The turbulence can tear apart the "water film barrier" formed by sewage on the surface of the filter media, allowing pollutants in the sludge water to quickly diffuse to the surface of the biofilm, improving contact efficiency. At the same time, the turbulence allows the sewage to flow fully inside the material box 31, avoiding the problem of partial contact and idleness of the filter media, ensuring that each filter media can participate in degradation and adsorption, and improving the utilization rate of the filter media. The rotation of the material box 31, combined with the vertical distribution of filter holes B33 and A22, allows the water flow to form a spiral downward flow path from the filter cover 24 to the bottom of the material bin 21, extending the contact time between sewage and filter media, while avoiding short-circuiting of water flow, i.e., sewage flowing directly to the discharge pipe without being fully treated, ensuring that the suspended solids concentration of the treated water is stable and meets the standards for sludge recycling and reuse.

[0040] Furthermore, with the cooperation of slider 212 and V-groove 28, the vertical telescopic motion is converted into the rotational motion of auxiliary tube 26, eliminating the need for an additional motor to drive the rotating components; and the return spring 210 can store compressive potential energy, which drives the external control box 211 and slider 212 to actively reset after the electric telescopic rod 29 is de-energized, reducing the energy consumption of the electric control system.

[0041] The filter cover 24 first intercepts large suspended particles, the filter holes B33 of the material box 31 trap medium-sized impurities, and the filter holes A22 at the bottom of the material bin 21 finally intercept fine flocculent matter, avoiding overload and clogging of a single filter layer; moreover, the filter holes B33 and A22 are vertically distributed, making the water flow path more reasonable, further reducing the probability of pore blockage, and preventing flocculent matter from adhering to the biological filter media and affecting the mud water treatment effect.

[0042] Eight material boxes 31 are fixed between the partition plates 27 by sliding snap-fit. Each material box 31 independently carries biological filter media and has a pull-out groove 32 on its side. If the filter media in a certain material box 31 becomes clogged, fails, or needs to be replenished with microorganisms, it can be easily maintained in two ways: one is to remove the entire material silo 21 and replace multiple sets of material boxes 31, and the other is to set a drawer on the side wall of the biological aeration tank 11 to pull out the faulty material box 31 separately without stopping the machine or disassembling the main body of the device. The modular design reduces downtime during device maintenance and improves operational continuity. It is especially suitable for scenarios where industrial sludge is continuously generated and needs continuous treatment, avoiding wastewater treatment interruptions due to maintenance.

[0043] Please refer to the above work process. Figures 1 to 10 .

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy-saving mud recycling device based on water pollution, comprising: The biological aeration tank (11) and the first component installed thereon are characterized in that: the first component includes a material bin (21) disposed in the biological aeration tank (11), the material bin (21) being fixedly connected to the biological aeration tank (11) by bolts, the bottom of the material bin (21) being provided with filter holes A (22), and a base (23) being fixedly connected at the center of the bottom of the material bin (21). The first component also includes a filter cover (24) that is fixedly connected to the material bin (21) by bolts. A limiting hole (25) is opened at the center of the filter cover (24). An auxiliary tube (26) is rotatably connected to the base (23). A spacer plate (27) is fixedly connected to the outer ring of the auxiliary tube (26). Multiple V-shaped grooves (28) are opened around the inner wall of the auxiliary tube (26). It also includes a second component set within the first component.

2. The energy-saving mud recycling device based on water pollution according to claim 1, characterized in that: The biological aeration tank (11) is fixedly connected to a top cover (12), and the bottom of the biological aeration tank (11) is provided with a discharge pipe (13).

3. The energy-saving mud recycling device based on water pollution according to claim 1, characterized in that: The first component also includes an electrically controlled telescopic rod (29) fixedly connected to the middle of the base (23). An external control box (211) is fixedly connected to one end of the electrically controlled telescopic rod (29) away from the base (23). The external control box (211) is slidably connected in the limiting hole (25). A reset spring (210) is provided on the outer ring of the electrically controlled telescopic rod (29). The two ends of the reset spring (210) are fixedly connected to the base (23) and the external control box (211) respectively. A slider (212) is fixedly connected to the bottom of the outer ring of the external control box (211).

4. The energy-saving mud recycling device based on water pollution according to claim 1, characterized in that: The spacer plate (27) is arranged in eight circles around the center of the auxiliary tube (26), and the V-shaped grooves (28) are connected and interconnected.

5. The energy-saving mud recycling device based on water pollution according to claim 3, characterized in that: The electrically controlled telescopic rod (29) is electrically controlled by an external controller. Multiple sliders (212) are arranged around the external control box (211). The number of sliders (212) is the same as the number of V-shaped grooves (28) opened in the auxiliary tube (26).

6. The energy-saving mud recycling device based on water pollution according to claim 1, characterized in that: The second component includes a material box (31) that is slidably snapped between two partition plates (27). The material box (31) has a pull-out groove (32) on the arc surface away from the center of the auxiliary tube (26), and a filter hole B (33) is provided on the bottom surface of the material box (31). It also includes a third component located below the second component.

7. The energy-saving mud recycling device based on water pollution according to claim 6, characterized in that: The material box (31) has eight boxes arranged around the center of the auxiliary pipe (26), and the material box (31) contains biological filter media for biological treatment of mud water.

8. The energy-saving mud recycling device based on water pollution according to claim 3, characterized in that: The third component includes a positioning frame (41) fixedly connected to the bottom of the material box (31), a wheel set (42) rotatably connected inside the positioning frame (41), and an inclined guide block (43) fixedly connected to the bottom inside the material bin (21).

9. The energy-saving mud recycling device based on water pollution according to claim 8, characterized in that: The positioning frame (41) is provided in eight parts, the wheel set (42) is composed of three wheel rings, and the inclined guide block (43) is provided in eight parts around the center of the material bin (21). The inclined guide block (43) is a trapezoidal block with one inclined side. The inclined guide block (43) is located directly below the wheel set (42) on the same vertical line.