Single-shaft rotary flexible material series operation structure and unified driving method

Abstract

A single-shaft rotating flexible material series operation structure and unified driving method belong to the technical field of water treatment environmental protection equipment.The single-shaft is taken as the smallest independent functional unit, each single-shaft independently carries a ring-shaped flexible carrier to complete underwater rotating operation; a plurality of independent single-shafts are connected in series through waterproof chains; only one set of main driving system is arranged as the only power source, power is transmitted to the rear through the chains in stages, and synchronous rotation of all single-shafts is realized; all single-shafts are independent in physical structure, do not interfere with stress, and can carry different flexible carriers to form differentiated load according to process requirements, so that multiple water treatment effects are output synchronously under the condition of the same rotating speed and the same power input, and integrated multi-process water treatment is realized by a single device. The present application takes into account the operation convenience of centralized driving and the functional differentiation advantage of independent units, the flexible chain transmission has strong fault tolerance, the equipment is convenient to disassemble, maintain and operate, and the energy consumption is lower.

Description

Technical Field

[0001] This invention belongs to the technical field of water treatment and environmental protection equipment, specifically relating to a single-axis rotating flexible material series operation structure and a unified driving method. Background Technology

[0002] In water treatment processes such as municipal wastewater biochemical treatment, industrial wastewater treatment, and river black and odorous water body remediation, rotary agitation treatment equipment is a core component. It primarily relies on rotating components to agitate the water, intercept impurities, renew biofilms, and increase dissolved oxygen levels. Currently, both mainstream rotary water treatment equipment in the industry have inherent technological shortcomings and cannot adapt to the current integrated, zoned water treatment needs:

[0003] 1. Integrated through-shaft rotating equipment: This equipment uses a single, rigid through-shaft as the rotating base. The shaft is not segmented or divided into independent units, resulting in a completely uniform load across the entire shaft. A single unit can only perform a single water treatment function. However, the water quality and stratification conditions along the water flow direction in the water treatment tank vary significantly. This type of equipment cannot be zoned to match different treatment functions, cannot simultaneously complete multiple water treatment processes, and exhibits poor equipment adaptability and extremely low process flexibility.

[0004] 2. Multi-axis independently driven rotating equipment: The rotating mechanism is divided into multiple independent rotating shafts, each equipped with its own drive motor and independent electrical control circuit, which can realize differentiated load and zoned processing on a single shaft. However, this solution has a large redundancy in the drive components and high energy consumption of the whole machine; it is difficult to achieve complete synchronization when multiple motors operate independently, and problems such as water flow collision, local stagnant water, and turbulent water flow are likely to occur underwater; the failure rate of electrical control components is high in the humid and corrosive underwater environment, resulting in high maintenance costs in the later stage. At the same time, the layout of multiple motors occupies the effective space of the pool, which is not conducive to the intensive layout of the water treatment system.

[0005] In summary, there are irreconcilable technical contradictions between the two existing mainstream types of equipment: rigid continuous shafts can achieve unified drive and synchronous operation, but cannot be separated into independent units or achieve differentiated loads; multi-axis independent drive can achieve differentiated functions of units, but cannot achieve unified synchronous control of the whole machine, and the electrical control is complex and energy-intensive. Currently, there is no technical solution in the industry that can simultaneously meet the core requirements of unified drive of a single power source for the whole machine, independent differentiated loads of multiple units, and synchronous realization of multiple water treatment functions. Based on this, this invention proposes a chain-connected single-axis flexible material unified drive scheme to solve the above-mentioned technical pain points in the industry. Summary of the Invention

[0006] In order to solve the above problems, the present invention provides a single-axis rotating flexible material series operation structure and a unified driving method.

[0007] The technical solution adopted in this invention is:

[0008] A single-axis rotating flexible material series operation structure includes a support, multiple independent single-axis rotating units mounted on the support, a chain series transmission assembly for connecting the multiple independent single-axis rotating units, and a main drive system that is connected to the chain series transmission assembly. Each independent single-axis rotating unit is equipped with a flexible carrier.

[0009] Furthermore, each of the independent single-axis rotating units includes a rotating shaft, the two ends of which are rotatably mounted on a bracket via waterproof sealed bearings. A ring-shaped flexible carrier is fitted onto the rotating shaft, and the flexible carrier is detachably fixed to the rotating shaft via a retainer.

[0010] Furthermore, the flexible carrier is made of a hydrolysis-resistant, acid and alkali-resistant polymer elastic material, a thickened cotton material loaded with microbial communities, or a flexible metal material carrying a photocatalyst.

[0011] Furthermore, each of the flexible carriers is loaded with biofilms, bacteria and algae, and photocatalysts.

[0012] Furthermore, the chain series transmission assembly includes multiple sprockets and multiple chains, with each rotating shaft fitted with a sprocket, and the multiple chains sequentially connected to two adjacent sprockets.

[0013] Furthermore, the chain-connected transmission assembly includes a chain and multiple sprockets, with each rotating shaft fitted with a sprocket, and the multiple sprockets being connected by a chain drive.

[0014] Furthermore, the main drive system includes a motor and a reducer; the motor and the reducer are driven together, and the output shaft of the reducer is connected to any rotating shaft.

[0015] A unified driving method for a uniaxial rotating flexible material series operation structure includes the following steps:

[0016] S1. Modular assembly: Based on the size of the water treatment tank and the number of water flow process segments, select and match the corresponding number of independent single-axis rotating units. Fix each set of single axes inside the tank with brackets. Connect the ends of adjacent single axes in series with waterproof chains to complete the mechanical assembly of the whole machine.

[0017] S2. Differentiated carrier assembly: Based on the different water treatment needs of the upstream and downstream of the pool, different types of ring-shaped flexible carriers are installed on each group of single shafts, and the differentiated operating load of each group of single shafts is set to match the corresponding water treatment functions.

[0018] S3. Unified power input: Start the front main drive system to drive the rotating shaft connected to it to rotate at a constant speed;

[0019] S4. Zoned Synchronous Cooperative Operation: The overall operating parameters of the machine remain constant, and each group of single shafts relies on its own differentiated flexible carrier and load to synchronously perform different water treatment operations.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. Control and maintenance advantages: The whole machine is driven by a single motor, eliminating the need for multiple group control circuits and reducing the number of control components by more than 60%. The failure rate of the equipment is greatly reduced in the underwater humid and corrosive environment; the entire shaft runs synchronously without speed difference, the water flow field is uniform and stable, there is no water flow collision or dead water area, no need for separate shaft debugging, and the operation and maintenance difficulty is greatly reduced.

[0022] 2. Process Function Advantages: Breaking the limitation of the traditional through-shaft equipment with consistent functions across the entire area, each unit is independently stressed and loaded under unified power. Different treatment functions can be arranged in zones along the water flow direction, simultaneously realizing multiple processes such as impurity interception, water mixing, oxygenation and reoxygenation, biofilm removal from the pool wall, and sludge anti-settling. It is suitable for stratified and segmented differentiated water treatment conditions.

[0023] 3. Structural and installation advantages: The chain flexible transmission has its own error compensation capability, which reduces the coaxiality accuracy requirements of the equipment during on-site installation and increases the construction fault tolerance rate; the modular single shaft can be disassembled and isolated individually, and the corresponding chain can be disconnected when a single unit fails, while the rest of the equipment continues to operate normally without the need for a complete shutdown for maintenance, ensuring the continuous operation of the water treatment system.

[0024] 4. Energy-saving and economic advantages: Compared with multi-axis independent drive equipment, the energy consumption of the whole machine is reduced by 30%-40%; the number of single-axis units can be freely increased or decreased according to the water volume to be treated, and the main equipment does not need to be replaced when expanding the project in the future, and the cost of equipment procurement, modification and operation and maintenance is significantly reduced.

[0025] 5. Process adaptability advantages: The ring-shaped flexible carrier replaces the rigid stirring blades, and there is no hard impact during the rotation process. It will not damage the anti-corrosion and anti-seepage layer of the tank, and at the same time, it will not destroy the activated sludge flocs in the sewage, making it suitable for the mild reaction conditions of biological water treatment. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the present invention, which consists of multiple chains connected in series.

[0027] Figure 2 This is a schematic diagram of the present invention, which is assembled in series by a single chain;

[0028] The components include: 1. Rotating shaft; 2. Support; 3. Flexible carrier; 4. Chain; 5. Bearing; 6. Motor. Detailed Implementation

[0029] To better understand the purpose, structure, and function of this invention, the invention will be described in further detail below with reference to the accompanying drawings.

[0030] This invention achieves water body disturbance through the series operation and unified drive of a single-axis rotating flexible material. Biofilms, bacteria and algae, and photocatalysts can be loaded on the flexible material to achieve various water treatment effects such as biofilm wastewater treatment, rotating algae belt treatment, and photocatalytic treatment.

[0031] like Figure 1 , Figure 2 As shown, the present invention provides a single-axis rotating flexible material series operation structure, including a support 2, multiple independent single-axis rotating units mounted on the support 2, a chain series transmission assembly for connecting the multiple independent single-axis rotating units in series, and a main drive system that is connected to the chain series transmission assembly. Each independent single-axis rotating unit is equipped with a flexible carrier 3.

[0032] 1. Independent single-axis rotating unit (minimum modular unit): Each single axis is a completely independent modular structure, which does not interfere with each other in terms of force. The independent single-axis rotating unit consists of a rotating shaft 1, waterproof sealed bearings 5 ​​at both ends, a bracket 2, and a holder for the flexible carrier 3. The two ends of the rotating shaft 1 are rotatably mounted on the bracket 2 through the waterproof sealed bearings 5. The flexible carrier 3 is detachably fixed on the rotating shaft 1 through the holder.

[0033] Each rotating shaft 1 can be individually disassembled and replaced with different specifications, materials, and structures of the ring-shaped flexible carrier 3, thereby forming different operating loads and water treatment functions. The flexible carrier 3 can be selected from three types of materials: hydrolysis-resistant and acid and alkali-resistant polymer elastic material, thickened cotton material loaded with microbial communities, and flexible metal material carrying photocatalysts, to adapt to different water treatment processes.

[0034] 2. Chain-connected transmission assembly: The end rotating shafts 1 of two adjacent independent single shafts are connected sequentially by a waterproof and corrosion-resistant chain 4, forming a complete transmission link through end-to-end connection of all single shafts. The chain 4 is a flexible transmission structure with adaptive angle compensation capability, which can offset the transmission stress caused by on-site installation coaxiality deviation and underwater operation deformation, and eliminate shaft twisting and transmission jamming failures caused by rigid connections; at the same time, the chain 4 only transmits rotational torque and does not restrict the independent force on a single shaft, ensuring unified transmission while retaining the independent load capacity of each unit.

[0035] Two structures are available for the chain-connected drive assembly.

[0036] One type includes multiple sprockets and multiple chains 4, with each of the rotating shafts 1 fitted with a sprocket, and the multiple chains 4 sequentially connected to two adjacent sprockets.

[0037] Another type includes a chain 4 and multiple sprockets, with each of the rotating shafts 1 fitted with a sprocket, and the multiple sprockets being connected by a chain 4 for transmission.

[0038] 3. Unified main drive system: The whole machine is equipped with only one motor 6 and a reduction mechanism as the sole power source. The motor 6 is only connected to the first single shaft transmission at the head end. After the power is started, the torque is transmitted to the rear through the chain 4, driving all the series single shafts to rotate synchronously, at the same speed, and in the same direction. The whole machine is equipped with only one set of general control electrical control system, which uniformly controls the equipment start and stop, speed adjustment, and forward and reverse switching, without the need for separate electrical control circuits for each shaft.

[0039] The motor 6 and the reducer are fixed on the bracket 2 or fixed in a suitable position according to the actual site conditions.

[0040] The unified driving method, this section outlines the generalized and standardized implementation and operation steps of the device of this invention. It is not limited to a single water treatment scenario, but is applicable to all water treatment conditions such as municipal sewage, industrial wastewater, marine aquaculture tailwater, and river water restoration. The overall method is divided into five general steps: equipment assembly, carrier assembly, system debugging, normal operation, and maintenance.

[0041] Includes the following steps:

[0042] S1. Modular Assembly and Fixing of Equipment: Based on the dimensions (length) of the water treatment tank and the number of water flow process segments (hydraulic retention time and process requirements), select a corresponding number of independent single-axis rotating units. Install each set of independent single-axis rotating units sequentially on the support beam above the water treatment tank via bracket 2, ensuring that all rotating shafts 1 are vertically arranged and their coaxiality meets the installation requirements. The lower end of rotating shaft 1 is completely submerged in the water to be treated. The ends of adjacent independent single-axis rotating units are connected in series via waterproof and corrosion-resistant chains 4 to form a complete chain transmission system. Connect the first set of single shafts at the beginning with the motor 6 and the reduction mechanism to complete the transmission connection, thus completing the mechanical structure assembly of the entire machine.

[0043] S2. Differentiated Flexible Carrier Installation and Fixing: Based on the water treatment function requirements of different sections of the pool along the water flow direction (upstream and downstream), ring-shaped flexible carriers 3 of different specifications, porosities, and functions are installed on each independent single shaft to match the corresponding water treatment functions; the flexible carriers 3 are firmly sleeved and fixed to the outer wall of the rotating shaft 1 to prevent loosening, displacement, or falling off during operation; according to process requirements, corresponding functional microbial communities can be inoculated on the surface of the flexible carriers 3 in advance for water biodegradation treatment.

[0044] S3. No-load linkage debugging of the whole machine: With the water tank empty, turn on the main control power and start the motor 6 by jogging to check the rotation status of all series single shafts; through the flexible transmission of chain 4, confirm that all single shafts rotate in the same direction and the speed is completely synchronized, with no rotational lag, no transmission jamming, and no abnormal chain noise; at the same time, check the chain tension to ensure that chain 4 has a reasonable adaptive deflection margin to compensate for installation deviations and running deformations. Continuously debug under no-load for 1 hour to confirm that the whole machine transmission system is operating normally.

[0045] S4. Water load test run and process adaptation: Inject the water to be treated into the water treatment tank to the design water level and carry out water load test run; set the overall machine speed through the main control system, and keep all single shafts running at the same speed and in the same direction throughout the process.

[0046] Start the front main drive system to drive the rotating shaft 1 connected to it to rotate at a constant speed. The torque is transmitted to all rotating shafts 1 at the rear end through the chain. All units of the whole machine maintain complete synchronization in speed and direction.

[0047] S5. Continuous and stable system operation: After the trial operation is successful, the equipment enters the normal continuous operation mode; the whole machine always maintains the unified drive of a single motor 6, without individually adjusting the operating parameters of any single shaft, and relies on the chain 4 to uniformly transmit torque to ensure the consistency of the operation of the entire unit; by utilizing the inherent flexible carrier 3 load difference of each vertical single shaft rotating unit, multiple water treatment functions are realized simultaneously under the unified motion state, without the need to add additional stirring, aeration, and water treatment auxiliary equipment, and one piece of equipment can simultaneously complete multiple water treatment processes.

[0048] S6. Daily Inspection and Maintenance: Regularly inspect the overall machine operation status, focusing on checking the tightness of chain 4, the integrity of flexible carrier 3, the sealing performance of bearing 5, and the operating current of motor 6; regularly clean the excessively thick and aged biofilm on the surface of flexible carrier 3 to ensure microbial activity and carrier water permeability; regularly add waterproof grease to chain 4 and underwater bearing 5 to improve the corrosion resistance and wear resistance of transmission components.

[0049] S7. Modular non-stop fault repair: When any group of independent single shafts experiences carrier damage, abnormal rotation, or other faults, there is no need to shut down the entire machine or stop the water supply. Simply disconnect the connecting chains 4 on both sides of the faulty unit, isolate the faulty unit, and lift it out for repair or replacement. All other single shaft units will continue to operate in linkage through the chains, and the water treatment process can run continuously without interruption. After the repair is completed, reconnecting the chains 4 will restore the linkage of the entire line.

[0050] Implementation Cases

[0051] Implementation Case 1: This embodiment is a customized design for a dedicated treatment unit for marine aquaculture wastewater.

[0052] This embodiment is a customized design for a dedicated treatment unit for marine aquaculture wastewater, tailored to the characteristics of wastewater with high salinity, high organic matter, and high nitrogen and phosphorus content. It strictly matches the on-site equipment parameters, and the entire system is configured with only one main drive unit, connected in series with 12 independent single-shaft treatment units. It is suitable for centralized biochemical treatment ponds for marine aquaculture wastewater and meets the DB35 / 2160-2023 aquaculture wastewater discharge standard.

[0053] The 12 independent single-shaft treatment units share a single drive system, are connected in series by chains, and have completely synchronized rotation speeds. They are divided into functional zones according to the direction of the effluent flow, and work together to remove the three core pollutants: COD, total nitrogen, and total phosphorus.

[0054] 1. Front-end water inlet units (groups 1-3): Degrade most of the COD in the water;

[0055] 2. Mid-stage denitrification unit (groups 4-8): Dense canvas carrier, biofilm enriched with a large number of nitrifying / denitrifying salt-tolerant bacteria, relying on rotating alternating contact with water and air to simultaneously achieve aerobic nitrification and anoxic denitrification, efficiently removing total nitrogen;

[0056] 3. Groups 9-12: Back-end phosphorus removal units: The surface of the hydrophilic canvas carrier adsorbs phosphorus removal functional bacteria, which, together with water disturbance, promote phosphate adsorption and biological solidification, and stably remove total phosphorus.

[0057] (2) Operating technology and on-site advantages

[0058] 1. Unified drive advantage: 12 units are driven by only one motor, which reduces the energy consumption of the whole machine by 50% compared with traditional 12-axis independent drive equipment, and greatly reduces the number of electrical control failure points in the humid and salty coastal environment;

[0059] 2. Advantages of independent unit operation and maintenance: When a single set of canvas carriers ages or the biofilm is abnormal, the corresponding chain 4 can be disconnected individually for offline maintenance of a single unit, while the remaining 11 units operate normally and continuously, and the aquaculture wastewater treatment does not require a complete shutdown.

[0060] 3. Adaptable to seawater conditions: The flexible canvas carrier has no rigid edges and corners, so it will not scratch the anti-corrosion layer of the pool. At the same time, the flexible rotation and disturbance are gentle and will not break up the mature biofilm, making it suitable for the requirements of seawater biochemical treatment processes.

[0061] Application Implementation Case 2: Aerobic Biological Treatment of Domestic Sewage

[0062] This device is used in aerobic treatment ponds for urban domestic sewage. It consists of four independent single-axis rotating units, which are driven by the same system and connected in series by chains to achieve synchronous rotation. Along the sewage flow direction, the four independent single-axis rotating units are arranged in sequence with porous fiber carrier, rough surface material carrier, thickened canvas carrier, and carbon fiber cloth carrier. The water treatment function is completed in zones based on the material characteristics of different carriers.

[0063] Unit 1 (Porous Fiber Carrier): With well-developed pores and a large specific surface area, it can intercept suspended solids and flocs in the water, while attaching a large number of heterotrophic bacteria to efficiently decompose easily degradable organic matter in the water and remove most of the COD.

[0064] The second unit (carrier with a rough surface): It has multiple attachment sites and strong biofilm adhesion, which stably enriches nitrifying bacteria, completes ammonia nitrogen conversion, and achieves ammonia nitrogen removal; the uneven structure enhances water disturbance and improves dissolved oxygenation.

[0065] The third unit (thickened canvas carrier): has high mechanical strength and strong disturbance ability, fully agitates the water, prevents activated sludge from settling, balances the flow field in the pool, and attaches protozoa to further purify the water.

[0066] Unit 4 (carbon fiber cloth carrier): It has good chemical stability and excellent bacterial activity, and can deeply degrade residual trace organic matter and residual nitrogen to stabilize the quality of effluent.

[0067] The four units maintain consistent rotation speed and direction, and work together based on the differences in the carriers. One set of equipment can simultaneously achieve multiple effects such as suspended solids interception, organic matter degradation, denitrification, water mixing, and deep purification.

[0068] Application Implementation Case 3: Natural Light Photocatalytic Degradation of Dyeing and Printing Wastewater

[0069] This device is used for the photocatalytic treatment of azo dye wastewater. The entire system consists of four independent single-axis rotating unit chains connected in series, operating synchronously with a single drive system. Flexible polyester mesh is used as the flexible carrier, with nano-titanium dioxide photocatalysts immobilized on its surface. The wastewater is then treated using natural light.

[0070] The flexible carrier 3 is made of flexible polyester mesh cloth, which has good light transmittance, acid and alkali corrosion resistance, and UV aging resistance. The mesh structure does not block natural light, and photocatalytic materials can be stably attached to the surface, making it suitable for the high color and acid-alkaline water quality characteristics of dyeing and printing wastewater.

[0071] The flexible support 3 supports nano-TiO2 photocatalysts, which can generate highly oxidizing active substances under natural light excitation.

[0072] The unit rotates at a constant speed, causing the catalyst-carrying mesh cloth to be alternately immersed in wastewater and exposed to air. Natural light directly acts on the catalyst, continuously oxidizing and decomposing dye molecules and recalcitrant organic matter in the azo dye wastewater, effectively removing water color and COD. The carrier simultaneously agitates the water, enhancing the contact between the wastewater and the catalyst interface and improving degradation efficiency. The entire system relies on natural light for deep purification, requiring no additional lighting, resulting in low operating costs and stable treatment effects.

[0073] This invention uses a single shaft as the smallest independent functional unit, with each single shaft independently equipped with a circular flexible carrier 3 to complete underwater rotation operations; multiple independent single shafts are flexibly connected in series via waterproof chains 4; the entire machine is equipped with only one main drive system as the sole power source, with power transmitted step by step to the rear via chains 4, achieving synchronous rotation of all single shafts at the same speed; all single shafts have independent physical structures and do not interfere with each other's force, and can be equipped with different flexible carriers 3 to form differentiated loads according to process requirements, simultaneously outputting multiple water treatment effects under the same rotation speed and the same power input conditions, realizing integrated multi-process water treatment in a single device.

[0074] Flexible materials can be loaded with biofilms, bacteria and algae, and photocatalysts to achieve various water treatment effects such as biofilm wastewater treatment, rotating bacterial and algal belt treatment, and photocatalytic treatment.

[0075] This invention combines the ease of operation of centralized drive with the functional differentiation advantages of independent units. The flexible chain drive has strong fault tolerance, the equipment is easy to disassemble, install and maintain, and has lower energy consumption. It can be widely adapted to various water treatment scenarios such as sewage biological treatment ponds, industrial wastewater ponds, and river water body restoration.

[0076] This invention solves the following problems:

[0077] 1. Solves the problem that traditional integrated through-shaft equipment has a single function, cannot process water in different zones according to the upstream and downstream working conditions, and cannot complete multiple water treatment processes simultaneously with one machine;

[0078] 2. Solve the problems of numerous motors, complex electrical control systems, poor synchronization of multi-axis operation, high overall energy consumption, and high operation and maintenance costs in multi-axis independently driven equipment;

[0079] 3. To resolve the contradiction between the high coaxiality requirements of rigid direct-connection series structures, the large transmission stress during operation, the easy deformation and jamming of the rotating shaft, and the inability to balance unified torque transmission and independent load on the unit;

[0080] 4. Optimize the modular structure of the equipment to enable individual isolation and maintenance of faulty units without shutting down the entire machine, thereby improving the continuous operation time and stability of the water treatment system.

[0081] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A uniaxial rotating flexible material series operation structure, characterized in that: It includes a bracket (2), multiple independent single-axis rotating units mounted on the bracket (2), a chain series transmission assembly for connecting multiple independent single-axis rotating units in series, and a main drive system that is connected to the chain series transmission assembly. Each independent single-axis rotating unit is equipped with a flexible carrier (3).

2. The uniaxial rotating flexible material series operation structure according to claim 1, characterized in that: Each of the independent single-axis rotating units includes a rotating shaft (1), both ends of which are rotatably mounted on a bracket (2) via waterproof sealed bearings (5). A ring-shaped flexible carrier (3) is fitted on the rotating shaft (1), and the flexible carrier (3) is detachably fixed on the rotating shaft (1) via a card holder.

3. The uniaxial rotating flexible material series operation structure according to claim 2, characterized in that: The flexible carrier (3) is made of hydrolysis-resistant and acid- and alkali-resistant polymer elastic material, thickened cotton material loaded with microbial communities, or flexible metal material loaded with photocatalyst.

4. The uniaxial rotating flexible material series operation structure according to claim 3, characterized in that: Each of the aforementioned flexible carriers (3) is loaded with biofilms, bacteria and algae, and photocatalysts.

5. The uniaxial rotating flexible material series operation structure according to claim 2, characterized in that: The chain-connected transmission assembly includes multiple sprockets and multiple chains (4). Each of the rotating shafts (1) is fitted with a sprocket, and the multiple chains (4) are sequentially connected to two adjacent sprockets.

6. The uniaxial rotating flexible material series operation structure according to claim 2, characterized in that: The chain-connected transmission assembly includes a chain (4) and multiple sprockets. Each of the rotating shafts (1) is fitted with a sprocket, and the multiple sprockets are connected by a chain (4) for transmission.

7. The uniaxial rotating flexible material series operation structure according to claim 5 or 6, characterized in that: The main drive system includes a motor (6) and a reducer; the motor (6) is driven by the reducer, and the output shaft of the reducer is connected to any rotating shaft (1).

8. A unified driving method utilizing a single-axis rotating flexible material series operation structure according to any one of claims 1-7, characterized in that: Includes the following steps: S1. Modular assembly: Based on the size of the water treatment tank and the number of water flow process segments, select the corresponding number of independent single-axis rotating units, fix each set of single shafts inside the tank through the bracket (2), and connect the ends of adjacent single shafts in series through waterproof chains (4) to complete the mechanical assembly of the whole machine; S2. Differentiated carrier assembly: Based on the different water treatment needs of the upstream and downstream of the pool, different types of ring-shaped flexible carriers (3) are installed on each group of single shafts, and the differentiated operating load of each group of single shafts is set to match the corresponding water treatment functions. S3. Unified power input: Start the front main drive system and drive the rotating shaft (1) connected to it to rotate at a constant speed; S4. Synchronous and coordinated operation in zones: The overall operating parameters of the machine remain constant, and each group of single shafts relies on its own differentiated flexible carrier (3) and load to synchronously perform different water treatment operations.

Images