A hierarchical coupling type sludge drying and intelligent storage and transportation integrated system

Abstract

The present application relates to sludge drying treatment technical field, disclose a kind of hierarchical coupling type sludge drying and intelligent storage and transportation integrated system, including pretreatment module, high-pressure dewatering module, broken mud temporary storage module, hot drying module, heat supply module, dry mud storage module, data acquisition module, central control module and storage and transportation module.Data acquisition module collects humidity value, broken mud depth value and dry mud depth value in broken mud temporary storage module;Central control module controls the hot air conveying rate of heat supply module according to humidity value and determines the drying time of hot drying module, controls broken mud conveying start-stop according to broken mud depth value, generates vehicle dispatching instruction according to dry mud depth value;Storage and transportation module automatically loads dry mud after carrying truck is in position.The present application realizes energy closed loop utilization of sludge drying process and unmanned intelligent scheduling of storage and transportation link by multidimensional data fusion and hierarchical coupling control, significantly reduces energy consumption and labor cost.

Description

Technical Field

[0001] This invention relates to the field of sludge drying treatment technology, and more specifically, to a graded coupled sludge drying and intelligent storage and transportation integrated system. Background Technology

[0002] Sludge drying is a key step in achieving sludge reduction, stabilization, and resource utilization, and is widely used in municipal sewage treatment, industrial wastewater treatment, and other fields.

[0003] Traditional sludge drying processes typically employ a "high-pressure filtration + low-temperature thermal drying" process: first, a high-pressure diaphragm filter press mechanically filters the sludge to a cake with a moisture content of approximately 50%, then it is fed into a low-temperature dryer to further reduce the moisture content to around 40%, meeting the requirements for subsequent incineration, landfill, or building material utilization. However, the process parameters of this traditional drying process (such as drying temperature, hot air flow rate, and processing time) rely solely on manual settings based on operator experience, and cannot be dynamically adjusted based on real-time feedback signals such as the actual initial moisture content of the cake, the humidity during the sludge crushing process, and the moisture content of the discharged material. Moreover, there is no automated collaborative control for sludge silo level monitoring, transport vehicle scheduling, and loading processes, frequently resulting in problems such as silo overflow, vehicles waiting for extended periods, overloading, or spillage, which not only affects operational efficiency but also poses safety hazards and environmental risks.

[0004] Therefore, it is necessary to provide a graded coupled sludge drying and intelligent storage and transportation integrated system, which aims to solve the problems of the inability to adaptively and dynamically adjust sludge drying process parameters and the inability to coordinate control between drying and storage and transportation in the current technology. Summary of the Invention

[0005] In view of this, the present invention proposes a graded coupled sludge drying and intelligent storage and transportation integrated system, which aims to solve the problems in the current technology that the sludge drying process parameters cannot be adaptively and dynamically adjusted and that the drying and storage and transportation cannot be coordinated and controlled.

[0006] This invention proposes a graded coupled sludge drying and intelligent storage and transportation integrated system, comprising: The pretreatment module is used to treat wastewater to obtain homogenized sludge; The high-pressure dewatering module has its inlet connected to the homogenized sludge outlet of the pretreatment module. The high-pressure dewatering module is used to perform high-pressure mechanical filtration on the homogenized sludge to obtain sludge cake. The mud crushing and temporary storage module has its inlet connected to the mud cake outlet of the high-pressure dewatering module. The mud crushing and temporary storage module is used to crush the mud cake to obtain mud crushing and temporarily store the mud crushing. The thermal drying module has its inlet connected to the mud outlet of the mud storage module. The thermal drying module is used to dry the mud with hot air to obtain dry mud. The heat supply module has its inlet connected to the hot air outlet of the heat drying module and its outlet connected to the hot air inlet of the mud storage module. The heat supply module is used to supply the hot air discharged from the heat drying module to the mud storage module. A dry mud storage module, the inlet of which is connected to the dry mud outlet of the thermal drying module, is used to store the dry mud; The data acquisition module is used to collect the humidity value and mud depth value inside the mud crushing temporary storage module, and the dry mud depth value inside the dry mud storage module. The central control module is electrically connected to the data acquisition module, the heating module, and the dry mud storage module. The central control module controls the hot air delivery rate of the heating module based on the humidity value. It also determines the hot air drying time of the thermal drying module based on the humidity value. Furthermore, the central control module controls the start and stop of the mud feeding from the mud storage module to the thermal drying module based on the mud depth value. Finally, the central control module generates vehicle dispatch instructions based on the dry mud depth value and sends these instructions to an external vehicle dispatch system to dispatch transport trucks. The storage and transportation module has its inlet connected to the dry mud outlet of the dry mud storage module. The storage and transportation module is used to load the dry mud into the transport truck after the transport truck is in place.

[0007] Furthermore, the preprocessing module includes: The gravity thickening unit, wherein the gravity thickening tank is used to thicken the input wastewater by gravity sedimentation to obtain concentrated sludge; A buffer conditioning unit is provided, the inlet of which is connected to the concentrated sludge outlet of the gravity thickening unit. The buffer unit is used to temporarily store the concentrated sludge and add conditioning agents to the concentrated sludge to output the concentrated sludge at an adjustable flow rate. The homogenization unit has its inlet connected to the outlet of the buffer conditioning unit and its outlet connected to the inlet of the high-pressure dewatering unit. The homogenization unit is used to mechanically stir the concentrated sludge after the addition of conditioning agents and output the homogenized sludge obtained after stirring to the high-pressure dewatering unit.

[0008] Furthermore, when the central control module controls the hot air delivery rate of the heating module based on the humidity value, it includes: When the humidity value is greater than or equal to the first preset humidity threshold and less than or equal to the second preset humidity threshold, the central control module is also used to control the heat delivery module to operate at a preset standard hot air delivery rate. When the humidity value is less than the first preset humidity threshold, the central control module is also used to control the heat delivery module to reduce the hot air delivery rate based on the preset standard hot air delivery rate. When the humidity value is greater than the second preset humidity threshold, the central control module is also used to control the heat delivery module to increase the hot air delivery rate based on the preset standard hot air delivery rate.

[0009] Furthermore, the mud storage module is equipped with a stirring impeller assembly, which is electrically connected to the central control module. The central control module is also used to control the rotation speed of the stirring impeller assembly to be linearly related to the hot air delivery rate of the heat delivery module.

[0010] Furthermore, when determining the hot air drying time of the thermal drying module based on the humidity value, the central control module also includes: The central control module pre-stores a humidity-hot air drying time mapping table or fitting function; wherein, in the mapping table or fitting function, the humidity value is positively correlated with the hot air drying time; The central control module is also used to determine the corresponding hot air drying time by querying the mapping table or substituting the fitting function based on the current humidity value when the hot drying module starts a new round of drying process. The central control module is also used to control the thermal drying module to perform hot air drying on the crushed mud according to the hot air drying treatment duration.

[0011] Furthermore, the central control module is also used to control the start and stop of the mud feeding from the mud storage module to the thermal drying module based on the mud depth value, including: When the mud crushing depth value is less than the preset mud crushing depth threshold, the central control module controls the mud crushing temporary storage module to stop feeding mud crushing to the thermal drying module. When the mud crushing depth value is greater than or equal to the preset mud crushing depth threshold, the central control module controls the mud crushing temporary storage module to start conveying mud crushed to the thermal drying module until the preset amount of mud crushed is conveyed to the thermal drying module for a single hot air drying process. Furthermore, after the thermal drying module completes the hot air drying process of the current batch of mud crushed, if the mud crushing depth value is still greater than or equal to the preset mud crushing depth value, the central control module controls the mud crushing temporary storage module to start conveying again until the preset amount of mud crushed is reached for the next single process.

[0012] Furthermore, when generating vehicle dispatch instructions based on the dry mud depth value, the central control module also includes: When the dry mud depth value is greater than or equal to the preset dry mud depth threshold, the central control module is also used to generate vehicle dispatch instructions.

[0013] Furthermore, the storage and transportation module includes: The loading screw conveyor unit has its inlet connected to the dry mud outlet of the dry mud storage module, and its outlet is located above the loading station. The loading screw conveyor unit is used to load the dry mud into the transport truck. A vehicle weighing unit is installed on the ground at the loading station, and the vehicle weighing unit is used to obtain the weight value at the loading station in real time. The loading control unit is electrically connected to the loading screw conveyor unit and the vehicle weighing unit, respectively. The loading control unit is used to determine whether the transport vehicle is in place based on the degree of matching between the weight value and the preset tare value. When it is determined that the transport vehicle is in place, the loading control unit controls the loading screw conveyor unit to load the dry mud into the transport truck. The loading control unit is also used to control the loading screw conveyor unit to stop working when the weight value reaches the preset full load threshold.

[0014] Furthermore, the storage and transportation module also includes: The audible and visual alarm unit is electrically connected to the vehicle-mounted control unit; wherein, The loading control unit is also used to generate an alarm signal when the weight value reaches a preset full load threshold. The audible and visual alarm unit is used to receive the alarm signal and issue an audible and visual alarm.

[0015] Furthermore, the aforementioned graded coupled sludge drying and intelligent storage and transportation integrated system also includes: The cloud-based monitoring platform is electrically connected to the data acquisition module, the central control module, and the loading control unit. The cloud-based monitoring platform is used to display and store in real time the humidity value, mud-breaking depth value, and dry mud depth value collected by the data acquisition module. The cloud-based monitoring platform is also used to receive and store vehicle dispatch instructions generated by the central control module. Furthermore, the cloud-based monitoring platform is used to remotely modify the first preset humidity threshold, the second preset humidity threshold, the preset mud-breaking depth threshold, and the preset dry mud depth threshold within the central control module, as well as to remotely modify the preset full-load threshold within the loading control unit.

[0016] Compared with existing technologies, the beneficial effects of this invention are as follows: The pretreatment module is used to treat wastewater to obtain homogenized sludge, which can avoid the instability of the filter press effect caused by fluctuations in sludge properties, improve the feed concentration and filter press efficiency of the high-pressure dewatering module, and extend the filter life. The high-pressure dewatering module is connected to the homogenized sludge outlet of the pretreatment module. The high-pressure dewatering module is used to perform high-pressure mechanical filter press on the homogenized sludge to obtain a sludge cake. Through high-pressure mechanical filter press, primary deep dewatering of the homogenized sludge can be achieved. The sludge crushing and temporary storage module is connected to the sludge cake outlet of the high-pressure dewatering module. The sludge crushing and temporary storage module is used to crush the sludge cake to obtain crushed sludge and temporarily store the crushed sludge. This breaks the blocky sludge cake produced by filter press into uniform crushed sludge, increases the specific surface area, and significantly improves the heat and mass transfer efficiency of subsequent hot air drying. The included thermal drying module has its inlet connected to the sludge outlet of the sludge temporary storage module. This module is used to dry the sludge with hot air, obtaining dry sludge. Low-temperature hot air is used for deep drying, ensuring the sludge meets the standards for resource utilization (such as brick making, incineration, and landscaping soil). Low-temperature drying avoids organic carbonization and the generation of harmful gases, and the dried sludge is stable, facilitating subsequent storage and transportation. A heating module has its inlet connected to the hot air outlet of the thermal drying module and its outlet connected to the hot air inlet of the sludge temporary storage module. This module supplies hot air discharged from the thermal drying module to the sludge temporary storage module, conveying a portion of the hot air from the thermal drying module to the sludge temporary storage module for pre-drying. A dry sludge storage module has its inlet connected to the dry sludge outlet of the thermal drying module. This module stores the dried sludge, providing a foundation for intelligent scheduling. The data acquisition module is used to collect the humidity and mud depth values ​​inside the mud storage module and the dry mud depth value inside the dry mud storage module. It can provide accurate and continuous feedback signals to the central control module, replace manual experience judgment, and eliminate lag and arbitrariness.The central control module is electrically connected to the data acquisition module, the heating module, and the dry mud storage module. The central control module controls the hot air delivery rate of the heating module based on the humidity value, ensuring the efficiency of the mud pre-drying process. It also determines the hot air drying time of the thermal drying module based on the humidity value, ensuring that the humidity of each batch of dried mud is maintained within a certain range, eliminating the need for manual control based on experience, saving manpower and improving work efficiency. Furthermore, the central control module controls the start and stop of the mud delivery from the mud storage module to the thermal drying module based on the mud depth value. When there is little mud, no further drying process is needed; when there is a large amount of mud, drying is then performed, improving work efficiency and saving energy. Finally, the central control module generates vehicle dispatch instructions based on the dry mud depth value and sends these instructions to an external vehicle dispatch system to dispatch transport trucks. When the required amount of dried mud is reached, a vehicle dispatch instruction is generated again to avoid empty trucks waiting. The storage and transportation module is connected at its inlet to the dry sludge outlet of the dry sludge storage module. The storage and transportation module is used to load the dry sludge into the transport truck after the truck is in place, realizing the synergy between sludge drying and storage and transportation, and further ensuring the working efficiency of the entire system.

[0017] In summary, this invention achieves closed-loop energy utilization in the sludge drying process and unmanned intelligent scheduling in the storage and transportation stages through multi-dimensional data fusion and hierarchical coupling control, significantly reducing energy consumption and labor costs. Attached Figure Description

[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a functional block diagram of the graded coupled sludge drying and intelligent storage and transportation integrated system provided in an embodiment of the present invention. Figure 2 A flowchart of a graded coupled sludge drying and intelligent storage and transportation integrated system provided in an embodiment of the present invention. Detailed Implementation

[0019] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, embodiments and features in the embodiments of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] In some embodiments of this application, see Figure 1-2 As shown in the figure, this embodiment provides a graded coupled sludge drying and intelligent storage and transportation integrated system, including a pretreatment module, a high-pressure dewatering module, a sludge crushing and temporary storage module, a thermal drying module, a heat supply module, a dry sludge storage module, a data acquisition module, a central control module, and a storage and transportation module.

[0021] Specifically, the pretreatment module is used to treat wastewater to obtain homogenized sludge.

[0022] Specifically, the high-pressure dewatering module has its inlet connected to the homogenized sludge outlet of the pretreatment module. This module is used to perform high-pressure mechanical filtration on the homogenized sludge to obtain a sludge cake. The high-pressure dewatering module is a high-pressure diaphragm filter press.

[0023] Specifically, the mud crushing temporary storage module has its inlet connected to the mud cake outlet of the high-pressure dewatering module. The mud crushing temporary storage module is used to crush the mud cake to obtain mud crushes and temporarily store the mud crushes. The mud crushing temporary storage module is a mud crushing temporary storage box, which is connected to the high-pressure dewatering module through a screw conveyor below the high-pressure dewatering module. A fan is installed on the top of the mud crushing temporary storage box.

[0024] Specifically, the thermal drying module has its inlet connected to the mud outlet of the mud storage module. The thermal drying module is used to dry the mud with hot air to obtain dry mud. The thermal drying module is a low-temperature dryer and is connected to the mud storage module via a screw conveyor.

[0025] Specifically, the heat supply module has its inlet connected to the hot air outlet of the thermal drying module and its outlet connected to the hot air inlet of the mud storage module. The heat supply module is used to send the hot air discharged from the thermal drying module into the mud storage module. The heat supply module includes a three-way valve, an induced draft fan, and an air duct. One of the three-way valves is connected to the outlet of the evaporator inside the thermal drying module, another is connected to the inside of the thermal drying module, and the third is connected to the mud storage module through the induced draft fan and the air duct.

[0026] Specifically, the dry mud storage module has its inlet connected to the dry mud outlet of the thermal drying module, and the dry mud storage module is used to store the dry mud.

[0027] Specifically, the data acquisition module is used to collect the humidity and mud depth values ​​inside the mud storage module, and the dry mud depth value inside the dry mud storage module. The data acquisition module includes a humidity sensor, a first depth sensor, and a second depth sensor disposed inside the dry mud storage module. The humidity sensor collects the humidity value inside the mud storage module, the first depth sensor collects the mud depth value inside the mud storage module, and the second depth sensor collects the dry mud depth value inside the dry mud storage module.

[0028] Specifically, the central control module is electrically connected to the data acquisition module, the heating module, and the dry mud storage module. The central control module is used to control the hot air delivery rate of the heating module based on the humidity value; the central control module is also used to determine the hot air drying treatment time of the thermal drying module based on the humidity value; the central control module is also used to control the start and stop of the mud crushing temporary storage module delivering mud crushed to the thermal drying module based on the mud crushing depth value; the central control module is also used to generate vehicle dispatching instructions based on the dry mud depth value and send the vehicle dispatching instructions to an external vehicle dispatching system to dispatch transport trucks.

[0029] Specifically, the storage and transportation module has its inlet connected to the dry mud outlet of the dry mud storage module. The storage and transportation module is used to load the dry mud into the transport truck after the transport truck is in place.

[0030] Understandably, the pretreatment module is used to treat wastewater to obtain homogenized sludge, which avoids unstable filtration efficiency due to fluctuations in sludge properties. It also increases the feed concentration and filtration efficiency of the high-pressure dewatering module, extending the filter life. The high-pressure dewatering module's inlet is connected to the homogenized sludge outlet of the pretreatment module. This module performs high-pressure mechanical filtration on the homogenized sludge to obtain a sludge cake. High-pressure mechanical filtration achieves primary deep dewatering of the homogenized sludge. The sludge crushing and temporary storage module's inlet is connected to the sludge cake outlet of the high-pressure dewatering module. This module crushes the sludge cake to obtain broken sludge and temporarily stores it. Breaking the blocky sludge cake produced by filtration into uniform broken sludge increases the specific surface area and significantly improves the heat and mass transfer efficiency of subsequent hot air drying. The included thermal drying module has its inlet connected to the sludge outlet of the sludge temporary storage module. This module is used to dry the sludge with hot air, obtaining dry sludge. Low-temperature hot air is used for deep drying, ensuring the sludge meets the standards for resource utilization (such as brick making, incineration, and landscaping soil). Low-temperature drying avoids organic carbonization and the generation of harmful gases, and the dried sludge is stable, facilitating subsequent storage and transportation. A heating module has its inlet connected to the hot air outlet of the thermal drying module and its outlet connected to the hot air inlet of the sludge temporary storage module. This module supplies hot air discharged from the thermal drying module to the sludge temporary storage module, conveying a portion of the hot air from the thermal drying module to the sludge temporary storage module for pre-drying. A dry sludge storage module has its inlet connected to the dry sludge outlet of the thermal drying module. This module stores the dried sludge, providing a foundation for intelligent scheduling. The data acquisition module is used to collect the humidity and mud depth values ​​inside the mud storage module and the dry mud depth value inside the dry mud storage module. It can provide accurate and continuous feedback signals to the central control module, replace manual experience judgment, and eliminate lag and arbitrariness.The central control module is electrically connected to the data acquisition module, the heating module, and the dry mud storage module. The central control module controls the hot air delivery rate of the heating module based on the humidity value, ensuring the efficiency of the mud pre-drying process. It also determines the hot air drying time of the thermal drying module based on the humidity value, ensuring that the humidity of each batch of dried mud is maintained within a certain range, eliminating the need for manual control based on experience, saving manpower and improving work efficiency. Furthermore, the central control module controls the start and stop of the mud delivery from the mud storage module to the thermal drying module based on the mud depth value. When there is little mud, no further drying process is needed; when there is a large amount of mud, drying is then performed, improving work efficiency and saving energy. Finally, the central control module generates vehicle dispatch instructions based on the dry mud depth value and sends these instructions to an external vehicle dispatch system to dispatch transport trucks. When the required amount of dried mud is reached, a vehicle dispatch instruction is generated again to avoid empty trucks waiting. The storage and transportation module is connected at its inlet to the dry sludge outlet of the dry sludge storage module. The storage and transportation module is used to load the dry sludge into the transport truck after the truck is in place, realizing the synergy between sludge drying and storage and transportation, and further ensuring the working efficiency of the entire system.

[0031] In summary, this invention achieves closed-loop energy utilization in the sludge drying process and unmanned intelligent scheduling in the storage and transportation stages through multi-dimensional data fusion and hierarchical coupling control, significantly reducing energy consumption and labor costs.

[0032] In some embodiments of this application, the preprocessing module includes a gravity concentration unit, a buffer adjustment unit, and a homogenization unit.

[0033] Specifically, the gravity thickening unit, the gravity thickening tank, is used to thicken the input wastewater by gravity sedimentation to obtain thickened sludge, and the gravity thickening unit is a gravity thickening tank.

[0034] Specifically, the buffer conditioning unit has its inlet connected to the concentrated sludge outlet of the gravity thickening unit. The buffer unit is used to temporarily store the concentrated sludge and add conditioning agents to the concentrated sludge to output the concentrated sludge at an adjustable flow rate. The buffer conditioning unit is a buffer tank and includes a chemical dosing device installed on its top. The chemical dosing device is used to add conditioning agents to the concentrated sludge.

[0035] Specifically, the homogenization unit has its inlet connected to the outlet of the buffer conditioning unit and its outlet connected to the inlet of the high-pressure dewatering unit. The homogenization unit is used to mechanically stir the concentrated sludge after the addition of conditioning agents and output the homogenized sludge obtained after stirring to the high-pressure dewatering unit. The homogenization unit is a homogenization tank.

[0036] Understandably, gravity thickening reduces volume first, decreasing the processing load on subsequent units. The buffer and conditioning unit not only temporarily stores the thickened sludge but also ensures precise dosing and stable flow of conditioning agents (such as PA and PB), preventing downstream high-pressure dewatering modules from experiencing efficiency reduction or equipment shock due to feed fluctuations. The homogenization unit ensures thorough mixing of agents and sludge through mechanical stirring, improving sludge dewatering performance and resulting in a more uniform moisture content in the sludge cake. These three components work together to form an integrated pretreatment chain of "thickening-conditioning-homogenization," providing a stable and high-quality raw material guarantee for staged coupled drying.

[0037] In some embodiments of this application, when the central control module is used to control the hot air delivery rate of the heating module based on the humidity value, it includes: When the humidity value is greater than or equal to the first preset humidity threshold and less than or equal to the second preset humidity threshold, the central control module is also used to control the heat delivery module to operate at a preset standard hot air delivery rate. When the humidity value is less than the first preset humidity threshold, the central control module is also used to control the heat delivery module to reduce the hot air delivery rate based on the preset standard hot air delivery rate. When the humidity value is greater than the second preset humidity threshold, the central control module is also used to control the heat delivery module to increase the hot air delivery rate based on the preset standard hot air delivery rate.

[0038] Specifically, when the humidity value is less than a first preset humidity threshold or greater than a second preset humidity threshold, the hot air delivery rate can be adjusted in a manner linearly positively correlated with the humidity value. This adjustment can be achieved by controlling the opening of the three-way valve or the rotation speed of the induced draft fan. The hot air delivery module begins supplying hot air after the compressor of the heat drying module has been running for a preset time, preferably 3 minutes. The air delivery stops when the compressor stops operating.

[0039] Understandably, the introduction of closed-loop feedback regulation ensures that the hot air delivery rate of the heat supply module always matches the actual humidity level within the mud storage module. When the humidity is too high (high moisture content in the mud or insufficient hot air dehumidification), the hot air circulation volume is automatically increased to enhance pre-drying; when the humidity is too low (the mud is already relatively dry), the air volume is reduced to avoid energy waste.

[0040] In some embodiments of this application, the mud storage module is equipped with a stirring impeller assembly, which is electrically connected to the central control module. The central control module is also used to control the rotation speed of the stirring impeller assembly to be linearly related to the hot air delivery rate of the heat delivery module.

[0041] It is understandable that when the hot air delivery rate increases, the stirring speed increases simultaneously, causing the pulverized mud to form a fluidized bed in the temporary storage chamber. The contact area and disturbance intensity between the hot air and the pulverized mud both increase, significantly improving the heat and mass transfer coefficient. Conversely, when the air volume is low, the stirring speed is reduced to reduce unnecessary mechanical energy consumption.

[0042] In some embodiments of this application, the central control module is further configured to determine the hot air drying treatment duration of the thermal drying module based on the humidity value, including: The central control module pre-stores a humidity-hot air drying time mapping table or fitting function; wherein, in the mapping table or fitting function, the humidity value is positively correlated with the hot air drying time; The central control module is also used to determine the corresponding hot air drying time by querying the mapping table or substituting the fitting function based on the current humidity value when the hot drying module starts a new round of drying process. The central control module is also used to control the thermal drying module to perform hot air drying on the crushed mud according to the hot air drying treatment duration.

[0043] Understandably, by pre-calibrating the mapping relationship (e.g., increasing the time by 2 minutes for every 5% increase in RH), the processing time for each batch can be precisely matched to the humidity of the current batch. This ensures that the moisture content of the dried mud remains stable within the target range (e.g., 40% ± 2%), avoids overheating, and extends the service life of the thermal drying equipment.

[0044] In some embodiments of this application, the central control module is further configured to control the start and stop of the mud-breaking temporary storage module supplying mud to the thermal drying module based on the mud-breaking depth value, including: When the mud crushing depth value is less than the preset mud crushing depth threshold, the central control module controls the mud crushing temporary storage module to stop feeding mud crushing to the thermal drying module. When the mud crushing depth value is greater than or equal to the preset mud crushing depth threshold, the central control module controls the mud crushing temporary storage module to start conveying mud crushed to the thermal drying module until the preset amount of mud crushed is conveyed to the thermal drying module for a single hot air drying process. Furthermore, after the thermal drying module completes the hot air drying process of the current batch of mud crushed, if the mud crushing depth value is still greater than or equal to the preset mud crushing depth value, the central control module controls the mud crushing temporary storage module to start conveying again until the preset amount of mud crushed is reached for the next single process.

[0045] Understandably, this achieves "on-demand batch feeding" for the thermal drying module, avoiding idle operation of the drying equipment due to empty material in the mud storage module, or insufficient drying due to excessive feeding. Simultaneously, through cycle control of "completing one batch, making a judgment, and conveying the next batch," the thermal drying module always operates near its rated processing capacity. Furthermore, this logic works in conjunction with humidity-time mapping to ensure that each batch of mud is processed under optimal drying parameters, eliminating batch-to-batch quality differences.

[0046] In some embodiments of this application, when the central control module generates vehicle dispatch instructions based on the dry mud depth value, it includes: When the dry mud depth value is greater than or equal to the preset dry mud depth threshold, the central control module is also used to generate vehicle dispatch instructions.

[0047] Understandably, when the dry mud depth reaches a threshold (such as 80% of the silo height), an instruction is automatically generated to notify the vehicle to arrive 30-60 minutes in advance through an external dispatch system. This enables precise coordination of "the material is about to be full and the vehicle is about to arrive," reducing vehicle waiting time, preventing overflow accidents, and allowing sufficient preparation time for loading operations.

[0048] In some embodiments of this application, the storage and transportation module includes a loading screw conveyor unit, a vehicle weighing unit, and a loading control unit.

[0049] Specifically, the loading screw conveyor unit has its inlet connected to the dry mud outlet of the dry mud storage module, and the outlet is located above the loading station. The loading screw conveyor unit is used to load the dry mud into the transport truck, and the loading screw conveyor unit is an inclined loading screw.

[0050] Specifically, the vehicle weighing unit is installed on the ground of the loading station. The vehicle weighing unit is used to obtain the weight value of the loading station in real time. The vehicle weighing unit is a ground pump.

[0051] Specifically, the loading control unit is electrically connected to the loading screw conveyor unit and the vehicle weighing unit, respectively. The loading control unit is used to determine whether the transport vehicle is in place based on the degree of matching between the weight value and the preset tare value. When it is determined that the transport vehicle is in place, the loading control unit controls the loading screw conveyor unit to load the dry mud into the transport truck. The loading control unit is also used to control the loading screw conveyor unit to stop working when the weight value reaches the preset full load threshold.

[0052] Understandably, by judging the position by weight matching, it can automatically identify the state of an empty vehicle in the correct position, avoiding spillage caused by loading the wrong vehicle or the position being off; continuous weighing feedback completely eliminates the safety hazards of overloading on the road; and automatic shutdown when the threshold is reached avoids the lag of manual operation.

[0053] In some embodiments of this application, the storage and transportation module further includes: The audible and visual alarm unit is electrically connected to the vehicle-mounted control unit; wherein, The loading control unit is also used to generate an alarm signal when the weight value reaches a preset full load threshold. The audible and visual alarm unit is used to receive the alarm signal and issue an audible and visual alarm.

[0054] Understandably, providing clear sensory cues upon completion of loading guides drivers to leave promptly, preventing them from occupying loading bays for extended periods and improving loading efficiency.

[0055] In some embodiments of this application, the graded coupled sludge drying and intelligent storage and transportation integrated system further includes: The cloud-based monitoring platform is electrically connected to the data acquisition module, the central control module, and the loading control unit. The cloud-based monitoring platform is used to display and store in real time the humidity value, mud-breaking depth value, and dry mud depth value collected by the data acquisition module. The cloud-based monitoring platform is also used to receive and store vehicle dispatch instructions generated by the central control module. Furthermore, the cloud-based monitoring platform is used to remotely modify the first preset humidity threshold, the second preset humidity threshold, the preset mud-breaking depth threshold, and the preset dry mud depth threshold within the central control module, as well as to remotely modify the preset full-load threshold within the loading control unit.

[0056] Understandably, managers can view all sensor data, equipment status, and historical curves in real time from the central control room or on their mobile devices, eliminating the need for frequent on-site inspections; by remotely modifying all thresholds (humidity threshold, material level threshold, full load threshold, etc.), they can flexibly adapt to the drying requirements of different batches of sludge without on-site programming; and the long-term cloud storage of data provides a big data foundation for process optimization, energy consumption analysis, and fault tracing.

[0057] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program goods. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program goods embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0058] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program goods according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0059] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0060] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A graded coupled sludge drying and intelligent storage and transportation integrated system, characterized in that, include: The pretreatment module is used to treat wastewater to obtain homogenized sludge; The high-pressure dewatering module has its inlet connected to the homogenized sludge outlet of the pretreatment module. The high-pressure dewatering module is used to perform high-pressure mechanical filtration on the homogenized sludge to obtain sludge cake. The mud crushing and temporary storage module has its inlet connected to the mud cake outlet of the high-pressure dewatering module. The mud crushing and temporary storage module is used to crush the mud cake to obtain mud crushing and temporarily store the mud crushing. The thermal drying module has its inlet connected to the mud outlet of the mud storage module. The thermal drying module is used to dry the mud with hot air to obtain dry mud. The heat supply module has its inlet connected to the hot air outlet of the heat drying module and its outlet connected to the hot air inlet of the mud storage module. The heat supply module is used to supply the hot air discharged from the heat drying module to the mud storage module. A dry mud storage module, the inlet of which is connected to the dry mud outlet of the thermal drying module, is used to store the dry mud; The data acquisition module is used to collect the humidity value and mud depth value inside the mud crushing temporary storage module, and the dry mud depth value inside the dry mud storage module. The central control module is electrically connected to the data acquisition module, the heating module, and the dry mud storage module. The central control module controls the hot air delivery rate of the heating module based on the humidity value. It also determines the hot air drying time of the thermal drying module based on the humidity value. Furthermore, the central control module controls the start and stop of the mud feeding from the mud storage module to the thermal drying module based on the mud depth value. Finally, the central control module generates vehicle dispatch instructions based on the dry mud depth value and sends these instructions to an external vehicle dispatch system to dispatch transport trucks. The storage and transportation module has its inlet connected to the dry mud outlet of the dry mud storage module. The storage and transportation module is used to load the dry mud into the transport truck after the transport truck is in place.

2. The graded coupled sludge drying and intelligent storage and transportation integrated system according to claim 1, characterized in that, The preprocessing module includes: The gravity thickening unit, wherein the gravity thickening tank is used to thicken the input wastewater by gravity sedimentation to obtain concentrated sludge; A buffer conditioning unit is provided, the inlet of which is connected to the concentrated sludge outlet of the gravity thickening unit. The buffer unit is used to temporarily store the concentrated sludge and add conditioning agents to the concentrated sludge to output the concentrated sludge at an adjustable flow rate. The homogenization unit has its inlet connected to the outlet of the buffer conditioning unit and its outlet connected to the inlet of the high-pressure dewatering unit. The homogenization unit is used to mechanically stir the concentrated sludge after the addition of conditioning agents and output the homogenized sludge obtained after stirring to the high-pressure dewatering unit.

3. The graded coupled sludge drying and intelligent storage and transportation integrated system according to claim 1, characterized in that, When the central control module is used to control the hot air delivery rate of the heating module based on the humidity value, it includes: When the humidity value is greater than or equal to the first preset humidity threshold and less than or equal to the second preset humidity threshold, the central control module is also used to control the heat delivery module to operate at a preset standard hot air delivery rate. When the humidity value is less than the first preset humidity threshold, the central control module is also used to control the heat delivery module to reduce the hot air delivery rate based on the preset standard hot air delivery rate. When the humidity value is greater than the second preset humidity threshold, the central control module is also used to control the heat delivery module to increase the hot air delivery rate based on the preset standard hot air delivery rate.

4. The graded coupled sludge drying and intelligent storage and transportation integrated system according to claim 3, characterized in that, The mud storage module is equipped with a stirring impeller assembly, which is electrically connected to the central control module. The central control module is also used to control the rotation speed of the stirring impeller assembly to be linearly related to the hot air delivery rate of the heat delivery module.

5. The graded coupled sludge drying and intelligent storage and transportation integrated system according to claim 4, characterized in that, The central control module is also used to determine the hot air drying time of the thermal drying module based on the humidity value, including: The central control module pre-stores a humidity-hot air drying time mapping table or fitting function; wherein, in the mapping table or fitting function, the humidity value is positively correlated with the hot air drying time; The central control module is also used to determine the corresponding hot air drying time by querying the mapping table or substituting the fitting function based on the current humidity value when the hot drying module starts a new round of drying process. The central control module is also used to control the thermal drying module to perform hot air drying on the crushed mud according to the hot air drying treatment duration.

6. The graded coupled sludge drying and intelligent storage and transportation integrated system according to claim 5, characterized in that, The central control module is also used to control the start and stop of the mud feeding from the mud storage module to the thermal drying module based on the mud depth value, including: When the mud crushing depth value is less than the preset mud crushing depth threshold, the central control module controls the mud crushing temporary storage module to stop feeding mud crushing to the thermal drying module. When the mud crushing depth value is greater than or equal to the preset mud crushing depth threshold, the central control module controls the mud crushing temporary storage module to start conveying mud crushed to the thermal drying module until the preset amount of mud crushed is conveyed to the thermal drying module for a single hot air drying process. Furthermore, after the thermal drying module completes the hot air drying process of the current batch of mud crushed, if the mud crushing depth value is still greater than or equal to the preset mud crushing depth value, the central control module controls the mud crushing temporary storage module to start conveying again until the preset amount of mud crushed is reached for the next single process.

7. The graded coupled sludge drying and intelligent storage and transportation integrated system according to claim 6, characterized in that, The central control module is also used to generate vehicle dispatch instructions based on the dry mud depth value, including: When the dry mud depth value is greater than or equal to the preset dry mud depth threshold, the central control module is also used to generate vehicle dispatch instructions.

8. The graded coupled sludge drying and intelligent storage and transportation integrated system according to claim 7, characterized in that, The storage and transportation module includes: The loading screw conveyor unit has its inlet connected to the dry mud outlet of the dry mud storage module, and its outlet is located above the loading station. The loading screw conveyor unit is used to load the dry mud into the transport truck. A vehicle weighing unit is installed on the ground at the loading station, and the vehicle weighing unit is used to obtain the weight value at the loading station in real time. The loading control unit is electrically connected to the loading screw conveyor unit and the vehicle weighing unit, respectively. The loading control unit is used to determine whether the transport vehicle is in place based on the degree of matching between the weight value and the preset tare value. When it is determined that the transport vehicle is in place, the loading control unit controls the loading screw conveyor unit to load the dry mud into the transport truck. The loading control unit is also used to control the loading screw conveyor unit to stop working when the weight value reaches the preset full load threshold.

9. The graded coupled sludge drying and intelligent storage and transportation integrated system according to claim 8, characterized in that, The storage and transportation module also includes: The audible and visual alarm unit is electrically connected to the vehicle-mounted control unit; wherein, The loading control unit is also used to generate an alarm signal when the weight value reaches a preset full load threshold. The audible and visual alarm unit is used to receive the alarm signal and issue an audible and visual alarm.

10. The graded coupled sludge drying and intelligent storage and transportation integrated system according to claim 9, characterized in that, Also includes: The cloud-based monitoring platform is electrically connected to the data acquisition module, the central control module, and the loading control unit. The cloud-based monitoring platform is used to display and store in real time the humidity value, mud-breaking depth value, and dry mud depth value collected by the data acquisition module. The cloud-based monitoring platform is also used to receive and store vehicle dispatch instructions generated by the central control module. Furthermore, the cloud-based monitoring platform is used to remotely modify the first preset humidity threshold, the second preset humidity threshold, the preset mud-breaking depth threshold, and the preset dry mud depth threshold within the central control module, as well as to remotely modify the preset full-load threshold within the loading control unit.

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