A quantitative dosing device for solidifying river silt

Abstract

This invention discloses a quantitative dosing device for solidifying river silt, belonging to the field of river silt treatment technology. It includes a dosing device body, a torque feedback adjustment module, and a control unit. The torque feedback adjustment module collects and processes the stirring torque data in real time, outputting corresponding dosage adjustment commands. The control unit receives the adjustment commands and drives the liquid control structure to operate, achieving adaptive control of the river silt solidification dosing process. A stirring torque detection mechanism is installed within the dosing device body. In this invention, through real-time feedback of stirring torque and closed-loop control of adaptive quantitative dosing, river silt with different moisture contents and different hardness states can be accurately identified, automatically matching the solidification liquid dosage. This effectively avoids insufficient dosage for thin silt and excessive dosage for thick silt, significantly improving the uniformity and deep solidification effect of the silt, and ensuring stable and consistent solidification quality.

Description

Technical Field

[0001] This invention belongs to the field of river silt treatment technology, specifically a quantitative dosing device for solidifying river silt. Background Technology

[0002] With the continuous advancement of urban water environment management and river ecological restoration, river dredging and sludge solidification have become key aspects of comprehensive water environment management. River sludge generally exhibits characteristics such as uneven water content distribution, large consistency differences, soft surface layer, dense deep layer, and complex and variable hardness. Its in-situ solidification treatment places high demands on the precision of chemical dosing, the uniformity of mixing, and the continuity of operations.

[0003] However, in actual operation, due to the significant differences in water content, cutting resistance, and density of sludge in different areas and at different depths, a fixed dosage can easily lead to insufficient dosage and incomplete solidification in the case of thin sludge, and excessive dosage and serious waste of reagents in the case of thick sludge. At the same time, problems such as uneven mixing of solidifying agent and sludge and inability of deep sludge to react fully may occur, which directly affect the solidification strength and treatment effect. Summary of the Invention

[0004] The purpose of this invention is to provide a quantitative dosing device for solidifying river silt, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a quantitative dosing device for solidifying river silt, comprising a dosing device body, a torque feedback adjustment module, and a control unit; the torque feedback adjustment module is used to collect stirring torque data in real time and perform calculation processing, and output corresponding dosage adjustment commands; the control unit is used to receive adjustment commands and drive the liquid control structure to operate;

[0006] The dosing device is equipped with a stirring torque detection mechanism, which is used to collect the load torque of the stirring head cutting the sludge in real time.

[0007] Among them, the liquid dosage control structure is used to apply an adjustable flow opening to the curing liquid to complete the adaptive quantitative dosing operation.

[0008] As a further preferred embodiment of this technical solution: the torque feedback adjustment module includes a torque acquisition unit, a solidification calculation unit, and a dosage adjustment module; the torque acquisition unit is used to detect the change value of the stirring torque in real time during the stirring process;

[0009] The solidification calculation unit calculates the operating condition characteristic factors and the liquid flow control quantity based on the torque change value; the liquid dosage adjustment module updates the parameters and issues adjustment commands based on the output value of the solidification calculation unit.

[0010] As a further preferred embodiment of this technical solution: the control unit has a preset torque stability range. When the stirring torque is within this range, the current liquid flow rate is maintained. When the stirring torque deviates from this range, the control unit receives parameter adjustment instructions from the torque feedback adjustment module and controls the operation of the liquid control structure to achieve adaptive quantitative dosing adjustment for sludge with different water content and different softness and hardness.

[0011] As a further preferred embodiment of this technical solution: the stirring torque detection mechanism includes: a stirring head, located at the output end of the hydraulic motor, with the torque sensor coaxially mounted between the output shaft of the hydraulic motor and the main shaft of the stirring head; and stirring blades, mounted on the outer wall of the stirring head, used for cutting and stirring the sludge.

[0012] As a further preferred embodiment of this technical solution, the liquid control structure includes: a liquid pipe, which is installed on the outer casing by a clamp and is used to transport the solidifying liquid; a volume control valve ball, which is rotatably installed inside the liquid pipe and has a shaft on one side; a rack, which is meshed with the shaft and has one side connected to the output end of the hydraulic telescopic cylinder; and a liquid outlet, which is connected to the liquid pipe through a cavity and is used to spray liquid into the sludge.

[0013] As a further preferred embodiment of this technical solution: the flow rate valve ball and the inner hole of the liquid tube form an overlapping shielding structure, thereby adjusting the flow rate by changing the flow cross-sectional area.

[0014] As a further preferred embodiment of this technical solution: the liquid outlet is provided in several groups and distributed on both sides of the lower end of the outer shell. Each group of liquid outlets is equipped with a one-way valve to prevent sludge backflow when the operation stops. The liquid outlet is connected to the liquid pipe through a cavity.

[0015] As a further preferred embodiment of this technical solution, the solidification calculation unit is configured as follows: a reasonable range for torque change rate is preset, and the reference torque and real-time torque are collected; the torque change rate is calculated, and if it exceeds the range, the working condition characteristic factor is calculated; the valve ball opening and liquid flow rate are determined, and the reference torque is updated to enter the next cycle of detection.

[0016] As a further preferred embodiment of this technical solution: the working condition characteristic factor is obtained by weighted calculation of the sludge inherent property factor and the real-time solidification state factor, and the solidification calculation unit automatically matches the liquid flow rate and valve ball opening based on this factor.

[0017] As a further preferred embodiment of this technical solution: the dosage adjustment module performs torque acquisition, rate of change calculation, parameter adjustment and benchmark torque update in a cyclical manner, forming a closed-loop adaptive dosing control with the torque acquisition unit and the control unit.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. In this invention, through real-time feedback of stirring torque and closed-loop control of adaptive quantitative dosing, river silt with different water content and different softness and hardness can be accurately identified, and the dosage of solidification liquid can be automatically matched. This effectively avoids the problem of insufficient dosage of silt and excessive dosage of silt, significantly improves the uniformity of silt solidification and deep solidification effect, and ensures stable and consistent solidification quality.

[0020] 2. In this invention, a flow rate adjustment valve ball and rack-and-pinion adjustment structure are used in conjunction with a hydraulic telescopic cylinder to achieve stepless and precise adjustment of the curing liquid flow rate. The adjustment action is only performed when the torque deviates from the preset range, avoiding frequent operation of the actuator, reducing energy consumption and equipment wear, and improving the reliability and service life of the device.

[0021] 3. Among them, a one-way valve anti-backflow structure is set at the liquid outlet, which, together with the spiral stirring blade and multiple sets of liquid outlets, can not only prevent sludge from clogging the pipeline when the machine is stopped, but also expand the stirring and spraying range, reduce the frequency of manual maintenance, and adapt to the continuous operation scenario of in-situ solidification in river channels. It has the advantages of high automation, wide applicability and high agent utilization. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a quantitative dosing device for solidifying river silt according to the present invention;

[0023] Figure 2 This is a cross-sectional view of the structure of a quantitative dosing device for solidifying river silt according to the present invention;

[0024] Figure 3 This is a partial structural cross-sectional view of a quantitative dosing device for solidifying river silt according to the present invention;

[0025] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0026] Figure 5 This is a cross-sectional schematic diagram of the drug solution control structure;

[0027] Figure 6 This is a schematic diagram of the installation of a quantitative dosing device for solidifying river silt according to the present invention;

[0028] Figure 7 This is a schematic diagram illustrating the working principle of a quantitative dosing device for solidifying river silt according to the present invention.

[0029] Figure 8 The flowchart for the fixed calculation unit;

[0030] Figure 9 This is a flowchart of the dosage adjustment module;

[0031] Figure 10This is a diagram showing the components of the torque feedback adjustment module.

[0032] Legend: 1. Outer casing; 11. Hydraulic motor;

[0033] Stirring torque detection mechanism: 201, stirring head; 202, stirring blade;

[0034] Drug liquid control structure: 301, drug liquid pipe; 302, volume control valve ball; 303, shaft; 304, rack; 305, hydraulic telescopic cylinder; 306, cavity; 307, liquid outlet. Detailed Implementation

[0035] 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.

[0036] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0037] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] like Figures 1-10 As shown, the present invention proposes a quantitative dosing device for solidifying river silt.

[0039] It includes a dosing device body, a torque feedback adjustment module, and a control unit. The dosing device body is equipped with a stirring torque detection mechanism, which is used to collect the load torque of the stirring head cutting the sludge in real time, identify the sludge moisture content, consistency, and softness / hardness, and prevent insufficient dosing of thin sludge, excessive dosing of thick sludge, uneven solidification, and incomplete solidification of deep sludge during the dosing process. The dosing device body is also equipped with a liquid dosage control structure.

[0040] Among them, such as Figure 10 As shown, the torque feedback adjustment module includes a torque acquisition unit, a solidification calculation unit, and a dosage adjustment module. The torque acquisition unit is used to detect the change value of the stirring torque in real time during the stirring process. The solidification calculation unit calculates the working condition characteristic factor and the liquid flow control quantity based on the torque change value. The dosage adjustment module updates the parameters and issues parameter adjustment commands based on the output value of the solidification calculation unit.

[0041] The control unit has a preset torque stability range, and the adjustment is only activated when the real-time stirring torque exceeds this range, avoiding frequent adjustments by the hydraulic telescopic cylinder. The control unit receives parameter adjustment commands from the torque feedback adjustment module to control the operation of the liquid dosage control structure, thereby achieving adaptive quantitative dosing adjustment for sludge with different moisture contents and different softness and hardness.

[0042] like Figure 1 , Figure 2 , Figure 6 As shown, the dosing device integrates an outer shell 1 and a hydraulic motor 11. The hydraulic motor 11 is installed inside the end of the outer shell 1 to provide power for stirring the sludge. It should be noted that the driving form of the hydraulic motor 11 is not limited, and the hydraulic motor 11 is connected to the hydraulic system of the excavator through a hydraulic pipeline.

[0043] The outer casing 1 is bolted to the mounting base at the end of the excavator boom.

[0044] Understandable Figure 1 This is for illustrative purposes only; the actual shape, size, position, and structure of each component are not subject to change. Figure 1 The device can also add or simplify relevant components according to actual needs.

[0045] It should be noted that this device treats river silt, encompassing silt structures with varying water content, including fluid silt, semi-solid soft silt, and dense hard silt. High-water-content fluid silt includes highly fluid, high-water-content surface silt; dense hard silt includes deep-seated, compacted, low-water-content, high-hardness bottom silt. This embodiment uses in-situ river silt solidification as an example; solidification of other types of silt can be achieved using the same structure, and will not be elaborated further below.

[0046] In this embodiment, the device parameters remain constant after each layer of stirring and adding chemicals is completed. If the internal moisture content of the sludge undergoes subsequent processing changes within a preset range, the torque feedback adjustment module will automatically update the data and adjust the output of the chemical solution through the control unit to adapt to the solidification requirements of sludge with different moisture contents and different soft and hard states.

[0047] Based on the above embodiments, such as Figure 2As shown, the stirring torque detection mechanism includes:

[0048] The stirring head 201 is located at the output end of the hydraulic motor 11, and the torque sensor is coaxially mounted between the output shaft of the hydraulic motor 11 and the main shaft of the stirring head 201; the stirring blade 202 is installed on the outer wall of the stirring head 201 and is used to cut and stir the sludge.

[0049] The stirring blades 202 are arranged in several groups in a spiral pattern, which not only increases the stirring range but also prevents sludge accumulation.

[0050] It should also be understood that the stirring blade 202 adopts a wear-resistant and corrosion-resistant structure and is fixed to the outer wall of the stirring head 201 by welding or bolting. The angle and spacing are adapted to the cutting conditions of river silt. The wear-resistant and corrosion-resistant structure is made of materials such as high chromium wear-resistant alloy, tungsten carbide wear-resistant coating, polyurethane wear-resistant coating layer or duplex stainless steel corrosion-resistant material.

[0051] It should be noted that the torque sensor can collect the load torque data of the stirring head 201 in real time.

[0052] It is understandable that the stirring head 201 is connected to the output end of the hydraulic motor 11 via a coupling, and the stirring head 201 and the stirring blade 202 rotate synchronously.

[0053] In this embodiment, a torque sensor is installed between the hydraulic motor 11 and the main shaft of the stirring head 201 to collect the stirring load torque in real time, reflecting the cutting resistance of the sludge, its moisture content, and its softness / hardness / density. During operation, the hydraulic motor 11 drives the stirring head 201 and the stirring blades 202 to rotate and cut the sludge. Since the cutting resistance of sludge with different moisture contents varies, the system can indirectly characterize the sludge solidification requirement through real-time torque. When the sludge has a high moisture content and a soft texture, the stirring torque is relatively small; when the sludge is relatively dry and dense and has a high hardness, the stirring torque increases. The torque sensor collects torque data in real time, and the real-time solidification status of the sludge is calculated.

[0054] ;

[0055] in, This is the real-time curing state coefficient. This is the torque correction factor. This refers to the real-time stirring torque.

[0056] Simultaneously calculate the torque change rate, using the following formula:

[0057] ;

[0058] in, This is the real-time stirring torque collected in this study. The reference stirring torque recorded by the torque acquisition unit at the previous moment.

[0059] Based on the above embodiments, such as Figures 2-5 As shown; the drug solution control structure includes:

[0060] The liquid pipe 301 is installed on the outer casing 1 by a clamp and is used to transport the curing liquid; the regulating valve ball 302 is rotatably installed inside the liquid pipe 301 and has a shaft 303 on one side; the rack 304 is meshed with the shaft 303 and is connected to the output end of the hydraulic telescopic cylinder 305 on one side; the liquid outlet 307 is connected to the liquid pipe 301 through the cavity 306 and is used to spray liquid into the sludge.

[0061] Among them, the rack 304 and the toothed groove structure set in the middle of the shaft 303 mesh with each other. The hydraulic telescopic cylinder 305 drives the rack 304 to move by telescopic movement, causing the regulating valve ball 302 to rotate, thereby realizing the flow rate adjustment by the misalignment of the through hole.

[0062] It should also be understood that the volume control valve ball 302 is fixedly connected to the shaft 303, and the shaft 303 is rotatably connected to one side of the liquid medicine tube 301, and the other end of the shaft 303 away from the volume control valve ball 302 is rotatably connected to the inner wall of the outer casing 1.

[0063] In addition, the hydraulic telescopic cylinder 305 is mounted on the inner wall of the outer casing 1 via a mounting base. Preferably, the mounting base can be installed on the inner wall of the outer casing 1, for example, by bolt connection or welding.

[0064] Among them, the rack 304 is provided with limit rods on both sides, and the limit rods are slidably connected to the limit plate provided on the upper inner wall of the outer shell 1, which is used to limit the rack 304 to make linear movement.

[0065] Furthermore, the telescopic end of the hydraulic telescopic cylinder 305 is connected to a limiting rod at one end of the rack 304, which is used to precisely control the rotation angle of the regulating valve ball 302.

[0066] Understandably, the hydraulic telescopic cylinder 305 receives instructions from the control unit and changes the opening of the regulating valve ball 302 through telescopic movement, thereby changing the flow cross-sectional area of ​​the liquid pipe 301.

[0067] When the regulating valve ball 302 rotates, its through hole overlaps or is offset from the inner hole of the liquid pipe 301, thereby achieving stepless adjustment of the curing liquid flow rate.

[0068] It should also be understood that there are several sets of liquid outlets 307 distributed on both sides of the lower end of the outer shell 1, corresponding to the two sets of stirring heads 201. The several sets of liquid outlets 307 are interconnected through the cavity 306 opened at one end of the outer shell 1. At the same time, each set of liquid outlets 307 is equipped with a one-way valve at the opening end for sludge backflow when the operation is stopped.

[0069] In addition, one end of the liquid pipe 301 is connected to the cavity 306, and the other end of the liquid pipe 301 is laid along the inside of the excavator's boom and arm and then connected to the pump output end of the solidification liquid storage tank. Preferably, the solidification liquid storage tank can be installed on the excavator body or placed directly on the river construction ground. The pump's start-stop control circuit is connected to the excavator cab control panel to realize synchronous start-stop and centralized control of the pump and the mixing operation.

[0070] In this embodiment, the torque sensor provides real-time feedback on the stirring torque. The solidification calculation unit within the control unit combines the stirring torque data collected by the torque sensor to calculate the operating condition characteristic factors. Through the control unit, it controls the hydraulic telescopic cylinder 305 to move the rack 304, thereby adjusting the rotational misalignment of the flow rate valve ball 302. This allows for real-time adjustment of the liquid flow rate based on the sludge moisture content. When the hydraulic telescopic cylinder 305 retracts, the overlapping area of ​​the valve ball's through-hole increases, increasing the flow rate; when the hydraulic telescopic cylinder 305 extends, the valve ball misaligns and blocks the flow, decreasing the flow rate.

[0071] In addition, the flow control valve ball 302 and the liquid medicine pipe 301 in this device form a throttling structure. When the hydraulic telescopic cylinder 305 is activated, the flow area changes synchronously, and the solidification effect of the sludge is adaptively adjusted accordingly.

[0072] In summary, as Figure 7 As shown, the torque acquisition unit, control unit, and dosage adjustment module form a complete closed-loop control system. The solidification calculation unit within the control unit combines the stirring torque data collected by the torque sensor to calculate the working condition characteristic factors, including sludge moisture content, stirring resistance, and density / hardness. Through the dosage adjustment module, the dosage control structure of the chemical solution is dynamically modified during the solidification process, realizing the control and adaptive adjustment of the entire sludge solidification process, ensuring the consistency of solidification effect, reducing the risk of chemical waste, and further improving the uniformity and treatment qualification rate of river sludge solidification.

[0073] Based on the above embodiments, the solidification calculation unit determines the internal state of sludge solidification according to the torque change rate obtained by the torque acquisition unit. When the solidification state exceeds the preset range, the unit predicts the working condition characteristic factor based on the output parameters of the liquid control structure and the torque change rate. Using the reference torque range as a constraint, the unit calculates the liquid flow rate and valve ball opening parameters and transmits them to the liquid dosage adjustment module. After recording the parameters, the liquid dosage adjustment module sends them to the control unit, which then issues instructions to adjust the 302 misalignment opening and flow area of ​​the liquid control structure.

[0074] In this embodiment, the liquid dosage control structure and the torque feedback adjustment module work together; by dynamically adjusting the dosage, the solidification quality can be effectively guaranteed: when the stirring torque is low and the silt is soft and has a high water content, the hydraulic telescopic cylinder automatically increases the valve ball opening to increase the dosage and ensure sufficient solidification; when the stirring torque is high and the silt is dense and dry, the valve ball opening is automatically reduced to decrease the dosage, avoid waste of chemicals, and further improve the stability and efficiency of river silt solidification.

[0075] Reference Figure 8 As shown, the solidified computing unit includes the following steps:

[0076] S10: Pre-set a reasonable range for the rate of change of stirring torque, and collect the current operating parameters of the liquid control structure, the reference stirring torque obtained by the torque acquisition unit, and the real-time stirring torque;

[0077] S20: Calculate the current stirring torque change rate and determine whether it is within the preset reasonable range; if it is within the range, keep the existing parameters of the liquid control structure unchanged; if it exceeds the range, calculate the characteristic factor of the river silt solidification condition.

[0078] S30: Based on the operating condition characteristic factors, calculate and determine the required output valve ball misalignment opening degree and curing liquid flow rate of the liquid control structure;

[0079] S40: Update the baseline stirring torque, making Then proceed to the next testing cycle.

[0080] In the above steps, the characteristic factor of river silt solidification is used to reflect the degree of adaptation of the current silt chemical solidification state, and is composed of the silt inherent property factor and the real-time solidification state factor.

[0081] The calculation model for operating condition characteristic factors is as follows:

[0082] ;

[0083] in, The weighting is influenced by the inherent properties of the silt and is dynamically adjusted as the solidification process progresses. ; To ensure that the weighting is affected by the real-time solidification state, , These are preset coefficients.

[0084] The inherent property factors of silt were calculated using a simplified model:

[0085] ;

[0086] in, The rate of change of stirring torque. , The system presets constants to reflect the influence of inherent properties of sludge, such as water content, consistency, hardness, and particle composition, on the solidification effect.

[0087] The real-time curing state factor is calculated using a dynamic model:

[0088] ;

[0089] in, This represents the current percentage of curing depth. , This is a preset constant for the system; it reflects the influence of real-time conditions such as stirring resistance, liquid spraying status, valve ball opening, and mixing uniformity on the curing process.

[0090] Will , Substituting into the comprehensive model, the current river channel silt solidification adaptation comprehensive index is obtained. .

[0091] The relationship between this index and the drug flow control volume is as follows:

[0092] ;

[0093] in, This is the proportionality coefficient. The value is the offset constant; by substituting the target flow rate and the expected valve ball opening value, the optimal dosing control parameters can be obtained.

[0094] The solidification calculation unit automatically adjusts the liquid flow rate and valve ball misalignment opening according to the comprehensive index, so that the stirring head and liquid outlet are always in a reasonable working state, avoiding problems such as insufficient liquid dosage for thin mud, excessive liquid dosage for thick mud, insufficient deep solidification, and waste of agents, thereby improving the stability and uniformity of river silt solidification.

[0095] Reference Figure 9 As shown, the dosage adjustment module includes the following steps:

[0096] B10: The torque acquisition unit obtains the reference stirring torque and the real-time stirring torque, and calculates the current stirring torque change rate;

[0097] B20: The solidified calculation unit determines whether the torque change rate is within a preset reasonable range; if it is within the range, the current valve ball opening and flow parameters remain unchanged.

[0098] B30: If it exceeds the reasonable range, the solidification calculation unit calculates the working condition characteristic factor based on the stirring torque change rate and outputs the optimal valve ball opening and liquid flow control parameters;

[0099] B40: The dosage adjustment module receives new control parameters and drives the liquid dosage control structure to perform adjustment through the control unit;

[0100] B50: Update the baseline stirring torque Return to B10 to proceed to the next cycle of detection.

[0101] Working principle or structural principle: During operation, the hydraulic motor 11 drives the stirring head 201 and stirring blade 202 to rotate and cut the river silt. The torque sensor collects the load torque of the stirring head 201 in real time to identify the water content, consistency and softness / hardness of the silt. The torque feedback adjustment module transmits the real-time torque data to the solidification calculation unit to calculate the torque change rate and working condition characteristic factors. The control unit compares the real-time torque with the preset torque stability range. When the torque is in the stability range, the current liquid flow rate is maintained.

[0102] When the torque deviates from the range, the control unit receives the adjustment command and drives the hydraulic telescopic cylinder 305 to move. Through the rack 304 and shaft 303, the regulating valve ball 302 is rotated, changing the flow cross-sectional area of ​​the valve ball and the liquid pipe 301 to steplessly adjust the flow rate of the solidifying liquid. When the sludge is soft and the torque is low, the valve ball opening is increased to increase the amount of medicine added. When the sludge is dense and the torque is high, the valve ball opening is decreased to reduce the amount of medicine added.

[0103] The curing liquid is evenly sprayed into the sludge through the liquid outlet 307 via the liquid pipe 301 and cavity 306. The one-way valve at the liquid outlet 307 prevents backflow of sludge. The stirring blade 202 continuously stirs the liquid to ensure thorough mixing between the curing liquid and the sludge. At the same time, the device cycles through torque acquisition, calculation and judgment, flow regulation and benchmark torque updates, forming a closed-loop adaptive control system. This enables uniform curing and precise quantitative dosing of sludge with different water contents and different hardness levels in different riverbed sludge layers, avoiding insufficient dosage or waste and ensuring continuous and stable operation of in-situ curing.

[0104] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.

[0105] 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.

[0106] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A quantitative dosing device for solidifying river silt, characterized in that: Includes the dosing device body, torque feedback adjustment module, and control unit; The torque feedback adjustment module is used to collect stirring torque data in real time and complete the calculation and processing, and output the corresponding dosage adjustment command; the control unit is used to receive the adjustment command and drive the liquid control structure to operate. The dosing device is equipped with a stirring torque detection mechanism, which is used to collect the load torque of the stirring head cutting the sludge in real time. Among them, the liquid dosage control structure is used to apply an adjustable flow opening to the curing liquid to complete the adaptive quantitative dosing operation.

2. The quantitative dosing device for solidifying river silt according to claim 1, characterized in that: The torque feedback adjustment module includes a torque acquisition unit, a solidification calculation unit, and a dosage adjustment module; The torque acquisition unit is used to detect the change in stirring torque in real time during the stirring process; The solidification calculation unit calculates the operating condition characteristic factors and the liquid flow control quantity based on the torque change value; the liquid dosage adjustment module updates the parameters and issues adjustment commands based on the output value of the solidification calculation unit.

3. A quantitative dosing device for solidifying river silt according to claim 2, characterized in that: The control unit has a preset torque stability range. When the stirring torque is within this range, the current liquid flow rate is maintained. When the stirring torque deviates from this range, the control unit receives the parameter adjustment command from the torque feedback adjustment module, controls the operation of the liquid dosage control structure, and realizes adaptive quantitative dosing adjustment for sludge with different water content and different softness and hardness.

4. A quantitative dosing device for solidifying river silt according to claim 3, characterized in that: The stirring torque detection mechanism includes: a stirring head, located at the output end of the hydraulic motor, with the torque sensor coaxially mounted between the output shaft of the hydraulic motor and the main shaft of the stirring head; and stirring blades, installed on the outer wall of the stirring head for cutting and stirring the sludge.

5. A quantitative dosing device for solidifying river silt according to claim 4, characterized in that: The liquid control structure includes: a liquid pipe, which is installed on the outer shell by a clamp and is used to transport the curing liquid; a volume control valve ball, which is rotatably installed inside the liquid pipe and has a shaft on one side; a rack, which is meshed with the shaft and has one side connected to the output end of the hydraulic telescopic cylinder; and a liquid outlet, which is connected to the liquid pipe through a cavity and is used to spray the liquid into the sludge.

6. A quantitative dosing device for solidifying river silt according to claim 5, characterized in that: The flow rate valve ball and the inner hole of the liquid tube form an overlapping shielding structure, and the flow rate is adjusted by changing the flow cross-sectional area.

7. A quantitative dosing device for solidifying river silt according to claim 6, characterized in that: Several sets of liquid outlets are distributed on both sides of the lower end of the outer shell. Each set of liquid outlets is equipped with a one-way valve to prevent sludge backflow when the operation stops. The liquid outlets are connected to the liquid pipe through a cavity.

8. A quantitative dosing device for solidifying river silt according to claim 7, characterized in that: The solidified calculation unit is configured as follows: a reasonable range for torque change rate is preset, and the reference torque and real-time torque are collected; the torque change rate is calculated, and if it exceeds the range, the working condition characteristic factor is calculated. Determine the valve ball opening and liquid flow rate, update the reference torque, and proceed to the next cycle of testing.

9. A quantitative dosing device for solidifying river silt according to claim 8, characterized in that: The operating condition characteristic factor is calculated by weighting the sludge inherent property factor and the real-time solidification state factor. The solidification calculation unit automatically matches the liquid flow rate and valve ball opening based on this factor.

10. A quantitative dosing device for solidifying river silt according to claim 9, characterized in that: The dosage adjustment module performs torque acquisition, rate of change calculation, parameter adjustment and benchmark torque update in a cyclical manner, forming a closed-loop adaptive dosing control with the torque acquisition unit and the control unit.

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