A variable-pitch dynamic magnetization method based on a distributed pulley

Abstract

The application relates to the technical field of dust falling devices, and discloses a variable-pitch dynamic magnetization method based on a distributed pulley. According to a preset pitch setting scheme, the variable-pitch module is controlled to adjust the average pitch of a spiral pipeline located in a composite magnetic field; the composite magnetic field of a magnetization module is adjusted to a preset magnetic field strength; a solution physical and chemical parameter is collected, and according to a preset shunt mechanism, the solution is guided into an adaptive spiral pipeline by a flow channel distribution module, so that the solution is magnetized under the action of the composite magnetic field during the movement in the spiral pipeline. The application solves the problems of poor adaptability and high energy consumption existing in the traditional magnetization mode.

Description

Technical Field

[0001] This invention relates to the field of dust suppression device technology, specifically a dynamic magnetization method based on distributed pulley variable pitch. Background Technology

[0002] Dust pollution is a long-standing problem in production environments such as coal mines. Spraying water is currently a widely used method for dust suppression. However, ordinary water bodies have limited ability to wet, adhere to, and capture fine dust (especially hydrophobic coal dust and cement dust) due to their high surface tension, resulting in low dust suppression efficiency and increased water consumption.

[0003] To address this issue, magnetized water technology has been introduced into the field of dust suppression spraying. Research shows that when water flows through a magnetic field of a specific intensity, its physicochemical properties, such as the structure of water molecule clusters, surface tension, viscosity, and solubility, change. Magnetized water exhibits reduced surface tension and enhanced wettability, enabling it to more effectively wet and adsorb fine dust particles, thus improving the efficiency of dust suppression spraying and conserving water resources.

[0004] Currently, water magnetization treatment mainly relies on various magnetization devices. However, existing magnetization devices primarily employ a combination of a fixed magnetic field strength and a fixed-pitch spiral pipe. These devices typically use permanent magnet arrays to generate a constant magnetic field, and the pitch of the spiral pipe cannot be adjusted once it is formed, thus making it impossible to adjust according to the real-time physicochemical parameters of the solution to be treated. Furthermore, the prevalence of single-spiral pipe designs necessitates the deployment of multiple sets of equipment when different water quality solutions need to be treated in parallel, increasing the floor space required and resulting in low space and cost efficiency. Summary of the Invention

[0005] To address the technical problems existing in the prior art, this invention provides a dynamic magnetization method based on distributed trolley variable pitch, which can intelligently sense water quality, dynamically adjust magnetic field strength and flow channel pitch, and achieve low-energy magnetization for parallel processing of multiple flow channels.

[0006] To achieve the above objectives, the present invention provides the following technical solution: This invention discloses a dynamic magnetization method based on distributed pulley variable pitch, applied to a dynamic magnetization device based on distributed pulley variable pitch. The device includes a pipe assembly, a flow channel distribution module, a magnetization module, and a variable pitch module. The spiral pipe in the pipe assembly is a flexible tube wound around a base column, which is located within the composite magnetic field generated by the magnetization module. The method includes the following steps: S1. According to the preset pitch setting scheme, control the variable pitch module to adjust the average pitch of the spiral pipe located in the composite magnetic field; S2. Adjust the composite magnetic field of the magnetization module to the preset magnetic field strength; S3. Collect the physicochemical parameters of the solution, and according to the preset diversion mechanism, control the flow channel distribution module to introduce the solution into the suitable spiral pipe, so that the solution is magnetized by the combined magnetic field during the movement in the spiral pipe.

[0007] As a further improvement to the above scheme, the magnetization module includes a main electro-permanent magnet and an auxiliary electro-permanent magnet; the main electro-permanent magnet and the auxiliary electro-permanent magnet are respectively arranged on opposite sides of the pipe assembly; the linear control of the main magnetic field strength is achieved by adjusting the current of the main electro-permanent magnet, expressed by the following formula:

[0008] In the formula, The main magnetic field strength; For current; The magnetic field coefficient, i.e., the current. Linear gain with respect to the magnetic field; This is the temperature compensation coefficient; The temperature change of the main electro-permanent magnet; The auxiliary magnetic field strength of the auxiliary electro-permanent magnet is adaptively adjusted based on the physicochemical parameters of the solution inside the spiral pipe. The mapping relationship is expressed as follows:

[0009] In the formula, To enhance the auxiliary magnetic field strength; Indicates water turbidity, unit: NTU ; Indicates water hardness, unit: mg / L .

[0010] As a further improvement to the above solution, the method further includes: S4. Repeat step S3 to magnetize the same batch of solution multiple times, periodically evaluating the magnetization effect until any of the following termination conditions are met: I. Current magnetization efficiency η≥95%; II. Cumulative energy consumption E > 1.0 kWh; 3. The magnetization efficiency η fluctuation after continuous setting of magnetization is less than 2%.

[0011] As a further improvement to the above scheme, the number of variable pitch modules corresponds to the helical pipe; each set of variable pitch modules includes a trolley and a flexible rope; the extension direction of the track is parallel to the axial direction of the base column of the corresponding helical pipe, several trolleys are slidably installed on the track, and each trolley is connected to the corresponding connection point on the helical pipe through a flexible rope, and the helical pipe is driven to extend and retract along the axial direction of the base column by multiple trolleys to adjust the average pitch of the helical pipe. In step S1, it is defined that during the process of adjusting the pitch of each set of spiral pipes, a total of m trolleys are involved, of which x trolleys move from rest, first accelerating and then decelerating, to dynamically adjust the pitch. The maximum speed of these x trolleys is the same. And since the acceleration is the same (a), and the remaining mx trolleys are temporarily at rest, then the average pitch is... The formula for expressing it is: .

[0012] As a further improvement to the above scheme, the formula for calculating the sled acceleration 'a' is:

[0013] In the formula, T is the output shaft torque of the brushless motor of each trolley; r is the transmission radius between the trolley and the traction system; The mass of a single pulley; The coefficient of sliding friction between the trolley and the track; This is the acceleration due to gravity.

[0014] As a further improvement to the above scheme, in step S1, while adjusting the average pitch of the spiral pipe, the corresponding pipe collection module is also controlled to synchronously wind up or release the spiral pipe.

[0015] As a further improvement to the above solution, the pipe collection module includes a roller; in step S1, the roller is driven to rotate around its own axis by a drive component to synchronously wind up or release the spiral pipe; wherein, the relationship between the roller rotation speed and the average pitch of the spiral pipe is:

[0016] In the formula, This refers to the drum rotation speed; The linear velocity of the drum winding the spiral pipe; This is an efficiency correction factor; Target magnetization efficiency; This represents the current magnetization efficiency.

[0017] As a further improvement to the above scheme, the maximum speed of the sled The linear velocity of the spiral pipe wound with the roller The relation is:

[0018] In the formula, L is the total length of the spiral pipe; t is the time it takes for the drum to wind the spiral pipe. The diameter of the cylindrical helix of the spiral pipe itself.

[0019] As a further improvement to the above scheme, the intervention timing of the remaining mx trolleys is set as follows: when At that time, the remaining mx pulleys intervene to prevent pulling on the spiral pipe.

[0020] As a further improvement to the above scheme, step S3, collecting the physicochemical parameters of the solution specifically includes: using a water quality sensor installed at the inlet of the flow channel distribution module to detect the turbidity and hardness of the water in real time; if solutions with different physicochemical parameters are detected, controlling the corresponding fluid control valve in the flow channel distribution module to open, and diverting the solution to different spiral pipes with pre-set magnetic field strength and specific pitch for parallel magnetization treatment.

[0021] Compared with the prior art, the beneficial effects of the present invention are: This invention achieves flexible adjustment of the average pitch of the spiral pipe by coordinating the synchronous movement of the variable pitch module and the pipe collection module. Combined with the dynamic adjustment of the composite magnetic field strength, it can construct the optimal magnetization spatiotemporal environment for solutions with different physicochemical parameters. This method utilizes a flow channel distribution mechanism to achieve parallel processing and differentiated magnetization of multiple solutions, breaking the limitations of fixed pitch and constant magnetic field in traditional methods, and significantly improving magnetization efficiency and process adaptability. At the same time, this method can effectively reduce operating energy consumption and equipment costs, solve the problems of poor adaptability and high energy consumption of existing technologies, and provide a practical and feasible implementation plan for exploring the coupling effect of different magnetic field strengths and pipe pitch on magnetization effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the distributed trolley variable pitch dynamic magnetization device in an embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram of the structure of the magnetization module and the pipeline assembly in an embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the structure of the pipeline collection module and the corresponding spiral track and variable pitch module in an embodiment of the present invention.

[0025] Figure 4 for Figure 3 A schematic diagram of the structure of the helical track and the corresponding variable pitch module.

[0026] Figure 5 This is a schematic diagram of the closed-loop control module in an embodiment of the present invention.

[0027] Figure 6 This is a flowchart of the dynamic magnetization method based on distributed pulley variable pitch in an embodiment of the present invention.

[0028] In the diagram: 1. Pipe assembly; 11. Spiral pipe; 12. Base column; 2. Flow distribution module; 21. Fluid control valve; 22. Water quality sensor; 3. Magnetization module; 31. Main electro-permanent magnet; 32. Auxiliary electro-permanent magnet; 4. Variable pitch module; 41. Track; 42. Trolley; 43. Flexible rope; 5. Closed-loop control module; 51. Controller; 52. Control cabinet; 53. Photoelectric sensor; 54. Speed ​​sensor; 6. Pipe collection module; 61. Drive motor; 62. Gear set; 63. Roller. Detailed Implementation

[0029] 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.

[0030] Please see Figures 1 to 5 This embodiment provides a distributed trolley variable pitch dynamic magnetization device, including: a pipe assembly 1, a flow channel distribution module 2, a magnetization module 3, a variable pitch module 4, a closed-loop control module 5, and a pipe collection module 6.

[0031] The pipe assembly 1 includes multiple spiral pipes 11 arranged side by side; each spiral pipe 11 is a flexible tube wound around a corresponding horizontally placed base column 12. Through the action of the variable pitch module 4, the spiral pipes 11 can undergo spring-like compression or tension along the axial direction of the base column 12, thereby adjusting the average axial distance of the spiral pipes 11. In some embodiments, a hollow tube can be coaxially sleeved on the outer layer of the base column 12, with a radial gap between the base column 12 and the hollow tube, forming a sandwich space to accommodate the spiral pipes 11, thus protecting the spiral pipes 11. It should be noted that the spiral pipes 11 do not need to contact the inner wall of the hollow tube.

[0032] The flow distribution module 2 is used to distribute the solution to different spiral pipes 11 according to the solution's physicochemical parameters. The flow distribution module 2 includes a number of fluid control valves 21 corresponding to the spiral pipes 11. Each fluid control valve 21 is installed at the inlet of the corresponding spiral pipe 11, and a water quality sensor 22 is provided at the inlet of the fluid control valve 21. The water quality sensor 22 is used to collect the solution's physicochemical parameters, including water turbidity and water hardness. In some embodiments, the fluid control valves 21 can be arranged in an array. By designing a specific pipeline connection method, different solutions can be combined and collected to modulate solutions with specific physicochemical properties and send them into the spiral pipes 11.

[0033] The magnetization module 3 includes a main electro-permanent magnet 31 and an auxiliary electro-permanent magnet 32. The main electro-permanent magnet 31 and the auxiliary electro-permanent magnet 32 ​​are respectively arranged on opposite sides of the pipe assembly 1, and a composite magnetic field is achieved by dynamically adjusting the strength of the main magnetic field and the strength of the auxiliary magnetic field.

[0034] In this embodiment, the main electro-permanent magnet 31 and the auxiliary electro-permanent magnet 32 ​​are located in the same vertical plane and are symmetrically distributed above and below multiple sets of spiral pipes 11. Both the main electro-permanent magnet 31 and the auxiliary electro-permanent magnet 32 ​​are multiple electro-permanent magnets arranged laterally and spaced apart. The magnetic field strength and magnetization time of the pipes in the pipe assembly 1 are adjusted by the combined magnetic field of the main electro-permanent magnet 31 and the auxiliary electro-permanent magnet 32.

[0035] The number of variable pitch modules 4 corresponds to the number of spiral pipes 11; each set of variable pitch modules 4 includes a track 41, a trolley 42 and a flexible rope 43; the extension direction of the track 41 is parallel to the axial direction of the base column 12 of the corresponding spiral pipe 11, and several trolleys 42 are slidably installed on the track 41, and each trolley 42 is connected to the corresponding connection point on the spiral pipe 11 through a flexible rope 43. The spiral pipe 11 is driven to extend and retract along the axial direction of the base column 12 by multiple trolleys 42 to adjust the average pitch of the spiral pipe 11.

[0036] It should be noted that different solutions require different residence times in the magnetic field, resulting in varying magnetization effects. The magnetization effect can be optimized by adjusting the screw pitch to achieve different residence times. However, longer residence time does not necessarily equate to better magnetization; sometimes the effect increases initially and then decreases, or fluctuates repeatedly. Therefore, before using the magnetization device of this invention, the screw pitch setting can be flexibly adjusted based on actual needs and experimental feedback to ensure the optimal residence time of the solution in the magnetic field (optimal energy consumption and magnetization efficiency).

[0037] Each variable pitch module 4 has two tracks 41, which are located on the same horizontal plane and symmetrically distributed on the front and rear sides of the corresponding spiral pipe 11. All trolleys 42 are staggered on the two tracks 41.

[0038] The closed-loop control module 5 includes a controller 51, a control cabinet 52, a photoelectric sensor 53, and a speed sensor 54. The controller 51 is installed in the control cabinet 52. The photoelectric sensor 53 and the speed sensor 54 are respectively installed on the track 41. The photoelectric sensor 53 is used to detect whether the trolley 42 has passed the point, thereby providing the controller 51 with discrete position signals of the trolley 42. The speed sensor 54 is used to collect the speed of the trolley 42 as a reference signal source for master-slave synchronous control (trolley 42 is the master, and roller 63 is the slave), preventing mechanical failures in complex dynamic expansion and contraction of the equipment. The photoelectric sensor 53, the speed sensor 54, and the brushless motor of the trolley 42 (not shown in the figure) are all electrically connected to the controller 51 through wires. Other electrical components can also be electrically connected to the controller 51. The controller 51 is a programmable logic controller that can control the combined movement of the variable pitch module 4 and the pipe collection module 6.

[0039] The number of pipe collection modules 6 corresponds to the number of spiral pipes 11; each set of pipe collection modules 6 includes a drive motor 61, a gear set 62 and a roller 63; the drive motor 61 drives the roller 63 located next to the base column 12 to rotate and / or translate around its own axis through the gear set 62, and the roller 63 is used to wind up or release the corresponding spiral pipe 11 by rotating.

[0040] Please see Figure 6 This embodiment also provides a distributed trolley variable pitch dynamic magnetization method, which is applied to the distributed trolley variable pitch dynamic magnetization device as described above; the method includes the following steps, namely S1~S4.

[0041] S1. According to the preset pitch setting scheme, control the variable pitch module 4 to adjust the average pitch of the spiral pipe 11, and simultaneously control the roller 63 to synchronously wind or release the spiral pipe 11.

[0042] The average pitch is the sum of the pitches of all segments divided by the number of segments in the spiral pipe, and is defined as follows:

[0043] In the formula, The average pitch; Let X be the pitch of the j-th segment, and let X be the number of segments of the spiral pipe 11 (the number of connection points of the spiral pipe 11).

[0044] In step S1, it is assumed that m trolleys 42 are involved in adjusting the pitch of each set of spiral pipes 11, of which x trolleys 42 move from rest, first accelerating and then decelerating, to dynamically adjust the pitch. The maximum speed of these x trolleys 42 is the same. All have the same acceleration 'a', and the remaining mx trolleys 42 are temporarily stationary. Note: The width of the trolleys is not considered in the calculation.

[0045]

[0046]

[0047] Then the average pitch The formula for expressing it is:

[0048] In the formula, s is the lead of the spiral pipe 11; L2 is the length of the auxiliary electro-permanent magnet, and s≤L2.

[0049] In addition, the derivation and calculation formula of the acceleration 'a' of the pulley 42 are as follows:

[0050]

[0051]

[0052]

[0053] Then we have:

[0054] In the formula, The total net force on the trolley; T is the output torque of the brushless motor for each trolley 42; is the traction force output by the brushless motor; r is the transmission radius between the trolley 42 and the traction system, which is a parameter of the brushless motor; Let x be the total sliding friction force experienced by the x trolleys 42 as they move on the track 41; For the mass of a single pulley 42; The coefficient of sliding friction between the trolley 42 and the track 41; This is the acceleration due to gravity.

[0055] The relationship between the rotational speed of drum 63 and the average pitch of spiral pipe 11 is as follows:

[0056] In the formula, The drum rotates at a speed of 63. The linear velocity of the spiral pipe 11 wound around the drum 63; This is an efficiency correction factor; Target magnetization efficiency; This represents the current magnetization efficiency.

[0057] Maximum speed of the sled 42 The linear velocity of the spiral pipe 11 wound with the roller 63 The relation and derivation process are as follows: Assuming leftward is the positive direction, the spiral pipe 11 is equivalent to a single thread with an average pitch. 11. A single-turn spiral pipe. For a cylindrical helix, the helix unfolds into a straight line along the cylindrical surface. For each pitch, the unfolded straight line constitutes a... , It is a triangle with right-angled legs, and D is the diameter of the cylinder (i.e., the projected diameter). Given the average pitch, the length of a single turn of the helix is:

[0058] Furthermore, because:

[0059]

[0060] Then we have:

[0061] In the formula, The average pitch of the spiral is the length of one turn, L is the total length of the spiral tube 11; t is the time it takes for the roller 63 to wind the spiral tube 11 (the same as the movement time of the trolley 42), where ; The diameter of the cylindrical helix of the spiral pipe 11 itself.

[0062] Assume (mx) pulleys are located outside (at one end) of the permanent magnet, and x pulleys are within the magnetic field. When the helix unfolds along the cylindrical surface, it forms a right triangle. The base is the circumference of the cylinder (π·D, where D is the diameter of the cylinder, and...). ), height is the pitch ( The hypotenuse is the length of a single turn of the spiral ( Then we have:

[0063] in, And because:

[0064] Then we have:

[0065] That is, if and only if At that time, the remaining mx pulleys 42 must be engaged in movement, otherwise they will pull on the spiral pipe 11.

[0066] S2. Adjust the composite magnetic field of magnetization module 3 to the preset magnetic field strength.

[0067] In step S2, the linear control of the main magnetic field strength is achieved by adjusting the current of the main electro-permanent magnet 31, expressed by the following formula:

[0068] In the formula, The main magnetic field strength; For current; The magnetic field coefficient, i.e., the current. Linear gain with respect to the magnetic field; This is the temperature compensation coefficient; This refers to the temperature change of the main electro-permanent magnet 31.

[0069] The specific derivation process of the above formula is as follows: According to Ampere's law, the relationship between the magnetic field strength H and the current I in a closed magnetic circuit is as follows:

[0070] Where N is the number of turns in the coil. This represents the length of the magnetic circuit.

[0071] Furthermore, the relationship between magnetic induction intensity B and H is as follows:

[0072] in The relative permeability, This refers to the inherent magnetization of the permanent magnet. is the vacuum permeability.

[0073] Therefore, for the main electro-permanent magnet 31, the magnetic field strength M can be approximated as a linear function of the current I:

[0074] Furthermore, assuming the magnetization efficiency of the main electro-permanent magnet 31 is... The theoretical magnetic field strength of the main electro-permanent magnet 31 is... The relationship with current can be expressed as:

[0075] in The magnetic field coefficient is determined by the number of coil turns, magnetic circuit geometry parameters, and material permeability, and needs to be calibrated experimentally.

[0076] Furthermore, the relative magnetic permeability of a material decreases with increasing temperature. and the inherent magnetization of permanent magnets A temperature compensation term needs to be introduced. And temperature changes The resulting magnetic field attenuation can be modeled as a linear relationship:

[0077] Where β is the temperature compensation coefficient.

[0078] In summary, the effective magnetic field strength M of the main electro-permanent magnet 31 is:

[0079] The auxiliary magnetic field strength of the auxiliary electro-permanent magnet 32 ​​is adaptively adjusted based on the physicochemical parameters of the solution within the spiral pipe 11. The mapping relationship is expressed as follows:

[0080] In the formula, To enhance the auxiliary magnetic field strength; Indicates water turbidity, unit: NTU ; Indicates water hardness, unit: mg / L .

[0081] S3. Collect the physicochemical parameters of the solution, and according to the preset diversion mechanism, control the flow channel distribution module 2 to introduce the solution into the suitable spiral pipe 11, so that the solution is magnetized by the composite magnetic field during its movement in the spiral pipe 11.

[0082] S4. Repeat step S3 to magnetize the same batch of solution multiple times, periodically evaluating the magnetization effect until any of the following termination conditions are met: I. Current magnetization efficiency η≥95% (standard output); II. Cumulative energy consumption E > 1.0 kWh (to prevent overload); 3. The magnetization efficiency η fluctuates less than 2% after three consecutive magnetizations (steady-state determination).

[0083] It should be noted that this embodiment can quantify the magnetization efficiency by measuring the surface tension and contact angle of the solution. After each magnetization, a solution sample can be collected and passed through a measuring instrument before entering the magnetization device.

[0084] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A dynamic magnetization method based on distributed pulley variable pitch, characterized in that, This method is applied to a distributed trolley variable pitch dynamic magnetization device, which includes a pipe assembly (1), a flow channel distribution module (2), a magnetization module (3), and a variable pitch module (4); the spiral pipe (11) in the pipe assembly (1) is a flexible tube wound around a base column (12), and the base column (12) is located within the composite magnetic field generated by the magnetization module (3); the method includes the following steps: S1. According to the preset pitch setting scheme, control the variable pitch module (4) to adjust the average pitch of the spiral pipe (11) located in the composite magnetic field; S2. Adjust the composite magnetic field of the magnetization module (3) to the preset magnetic field strength; S3. Collect the physicochemical parameters of the solution, and according to the preset diversion mechanism, control the flow channel distribution module (2) to introduce the solution into the suitable spiral pipe (11), so that the solution is magnetized by the composite magnetic field during the movement in the spiral pipe (11).

2. The dynamic magnetization method based on distributed trolley variable pitch according to claim 1, characterized in that, The magnetization module (3) includes a main electro-permanent magnet (31) and an auxiliary electro-permanent magnet (32); the main electro-permanent magnet (31) and the auxiliary electro-permanent magnet (32) are respectively arranged on opposite sides of the pipe assembly (1); the linear control of the main magnetic field strength is achieved by adjusting the current of the main electro-permanent magnet (31), expressed by the following formula: In the formula, The main magnetic field strength; For current; The magnetic field coefficient, i.e., the current. Linear gain with respect to the magnetic field; This is the temperature compensation coefficient; The temperature change of the main electro-permanent magnet (31); Among them, based on the physicochemical parameters of the solution in the spiral pipe (11), the auxiliary magnetic field strength of the auxiliary electro-permanent magnet (32) is adaptively adjusted, and the mapping relationship is expressed as follows: In the formula, To enhance the auxiliary magnetic field strength; Indicates water turbidity, unit: NTU ; Indicates water hardness, unit: mg / L .

3. The dynamic magnetization method based on distributed trolley variable pitch according to claim 1, characterized in that, Also includes: S4. Repeat step S3 to magnetize the same batch of solution multiple times, periodically evaluating the magnetization effect until any of the following termination conditions are met: I. Current magnetization efficiency η≥95%; II. Cumulative energy consumption E > 1.0 kWh; 3. The magnetization efficiency η fluctuation after continuous setting of magnetization is less than 2%.

4. The dynamic magnetization method based on distributed trolley variable pitch according to claim 1, characterized in that, The number of variable pitch modules (4) corresponds to the number of spiral pipes (11); each set of variable pitch modules (4) includes (41), trolleys (42) and flexible ropes (43); the extension direction of the track (41) is parallel to the axial direction of the base column (12) of the corresponding spiral pipe (11), several trolleys (42) are slidably installed on the track (41), and each trolley (42) is connected to the corresponding connection point on the spiral pipe (11) through a flexible rope (43). The spiral pipe (11) is driven to extend and retract along the axial direction of the base column (12) by multiple trolleys (42) to adjust the average pitch of the spiral pipe (11); In step S1, it is defined that during the process of adjusting the pitch of each set of spiral pipes (11), a total of m trolleys (42) are involved, of which x trolleys (42) move from rest to first accelerate and then decelerate to dynamically adjust the pitch. The maximum speed of these x trolleys (42) is the same. And the acceleration is the same, a. The remaining mx pulleys (42) are temporarily at rest. Then the average pitch is... The formula for expressing it is: 。 5. The dynamic magnetization method based on distributed trolley variable pitch according to claim 4, characterized in that, The formula for calculating the acceleration a of the pulley (42) is: In the formula, T is the output shaft torque of the brushless motor of each trolley (42); r is the transmission radius between the trolley (42) and the traction system; The mass of a single pulley (42); Let be the coefficient of sliding friction between the trolley (42) and the track (41); This is the acceleration due to gravity.

6. The dynamic magnetization method based on distributed trolley variable pitch according to claim 5, characterized in that, In step S1, while adjusting the average pitch of the spiral pipe (11), the corresponding pipe collection module (6) is also controlled to synchronously wind up or release the spiral pipe (11).

7. The dynamic magnetization method based on distributed trolley variable pitch according to claim 6, characterized in that, The pipe collection module (6) includes a roller (63); in step S1, the roller (63) is driven to rotate around its own axis by a drive assembly to synchronously wind up or release the spiral pipe (11); wherein, the relationship between the rotational speed of the roller (63) and the average pitch of the spiral pipe (11) is as follows: In the formula, The rotational speed of the drum (63); The linear velocity of the helical pipe (11) wound around the drum (63); This is an efficiency correction factor; Target magnetization efficiency; This represents the current magnetization efficiency.

8. The dynamic magnetization method based on distributed pulley variable pitch according to claim 7, characterized in that, Maximum speed of pulley (42) The linear velocity of the spiral pipe (11) wound with the roller (63) The relation is: In the formula, L is the total length of the spiral pipe (11); t is the time it takes for the roller (63) to wind the spiral pipe (11); The diameter of the cylindrical helix of the spiral pipe (11) is denoted by .

9. The dynamic magnetization method based on distributed trolley variable pitch according to claim 8, characterized in that, The intervention timing of the remaining mx trolleys (42) is set as follows: when At that time, the remaining mx pulleys (42) intervene to prevent the helical pipe (11) from being pulled.

10. The dynamic magnetization method based on distributed trolley variable pitch according to claim 1, characterized in that, In step S3, the collection of solution physicochemical parameters specifically includes: using a water quality sensor (22) installed at the inlet of the flow channel distribution module (2) to detect water turbidity and water hardness in real time; if solutions with different physicochemical parameters are detected, the corresponding fluid control valve (21) in the flow channel distribution module (2) is opened to divert the solution to different spiral pipes (11) with pre-set magnetic field strength and specific pitch for parallel magnetization treatment.

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