Unattended sludge conveying system and method

Abstract

The invention relates to the technical field of sludge transportation, in particular to an unattended sludge conveying system and method, and the system comprises a sludge feeding module which is used for receiving to-be-transported sludge provided by a sludge loading machine; the crushing treatment module is used for crushing the to-be-transported sludge to obtain to-be-treated sludge; the sludge collection module and the crushing treatment module are connected based on a second conveyor belt to receive to-be-treated sludge, and the sludge collection module is used for conveying the to-be-treated sludge to a corresponding sludge bin according to a preset route; the signal processing module is used for controlling the first conveying belt to convey the to-be-conveyed sludge to the crushing treatment module, and the signal processing module is also used for controlling the second conveying belt to convey the to-be-treated sludge to a sludge bin corresponding to the sludge collecting module. The transportation efficiency of the to-be-transported sludge is improved, and the production efficiency of a thermal power plant is further improved.

Description

Technical Field

[0001] This application relates to the technical field of sludge transportation, and in particular to an unattended sludge transportation system and method. Background Technology

[0002] Coal combustion in thermal power plants produces a large amount of dust. To reduce air pollution, thermal power plants typically use dust removal equipment to filter the dust. These devices effectively reduce dust emissions but generate large amounts of waste dust, flue gas, and other solid waste. Coal ash is the largest and heaviest component of thermal power plant sludge, along with flue gas components such as sulfur dioxide and nitrogen, as well as elements like iron and manganese, and other impurities. To protect the safe operation of the equipment, sludge treatment is necessary for thermal power plants.

[0003] Currently, the main method for treating sludge is to transport it from the point of generation to the treatment point. Specifically, sludge trucks are needed to transport the sludge to the appropriate sludge treatment plant for treatment.

[0004] However, the internal environment of the sludge transportation system is relatively harsh, and daily manual operation can affect the health of the workers. In addition, the sludge transportation process requires additional manpower for daily transportation operations, which leads to a large number of manual operation steps. Summary of the Invention

[0005] In order to reduce staffing, improve the working environment for employees, and increase production efficiency, this application provides an unattended sludge conveying system and method.

[0006] Firstly, this application provides an unattended sludge conveying system, which adopts the following technical solution: An unattended sludge conveying system includes a sludge loader, the sludge loader being used to acquire sludge to be transported, comprising: A sludge feeding module, which is used to receive the sludge to be transported provided by the sludge loader; A crushing module is connected to the sludge feeding module via a first conveyor belt to receive the sludge to be transported and to crush the sludge to be transported in order to obtain sludge to be processed. A sludge collection module is connected to the crushing and processing module via a second conveyor belt to receive the sludge to be processed. The sludge collection module is used to transport the sludge to be processed to the corresponding sludge bin according to a preset route. The signal processing module is network-connected to the sludge loader to control the sludge loader to deliver the sludge to be transported to the sludge feeding module. The signal processing module is also used to control the first conveyor belt to transport the sludge to be transported to the crushing and processing module, and the signal processing module is also used to control the second conveyor belt to transport the sludge to be processed to the sludge bin corresponding to the sludge collection module.

[0007] By adopting the above technical solution, the first and second conveyor belts are controlled by the signal processing module to automatically transport the sludge to the crushing and processing module and the sludge collection module, thereby realizing the transportation and processing of the sludge to be transported, reducing the personnel configuration, and only requiring staff to monitor in real time in the monitoring room to improve the working environment of employees, increase the transportation efficiency of the sludge to be transported, and thus improve the production efficiency of the thermal power plant.

[0008] In some embodiments, the crushing module includes a sludge metering unit and a sludge crushing unit. The sludge metering unit is used to periodically obtain the total amount to be crushed in the sludge crushing unit and send the total amount to be crushed to the signal processing module. The signal processing module compares the total quantity to be broken with the preset total quantity and determines whether the total quantity to be broken is equal to the preset total quantity. If the total amount of material to be crushed is equal to the preset total amount, the signal processing module generates a crushing start signal, and adjusts the first conveyor belt to transport the sludge to be transported at a first preset frequency according to the crushing start signal; and controls the sludge crushing unit to crush the sludge to be transported according to the crushing start signal.

[0009] By adopting the above technical solution, the sludge metering unit is used to periodically obtain the total amount of sludge to be crushed in the sludge crushing unit and send the total amount to be crushed to the signal processing module. Until the sludge to be transported inside the sludge crushing unit reaches the preset total amount, the signal processing module generates a crushing start signal and adjusts the first conveyor belt to transport the sludge to be transported at a first preset frequency according to the crushing start signal. The sludge to be transported inside the sludge crushing unit is crushed, which facilitates the subsequent transport and collection of the sludge to be treated by the sludge collection module, improves the automatic sludge treatment efficiency inside the thermal power plant, and reduces manual operation, thereby avoiding the long-term exposure of staff to the harsh sludge treatment environment of the thermal power plant. It also enables real-time and accurate control of parameters such as sludge flow rate and conveying pressure, improving the stability of system operation.

[0010] In some embodiments, the crushing processing module further includes a crushing timing unit, which is network-connected to the signal processing module to receive the crushing start signal and generate a corresponding preset crushing duration based on the crushing start signal, and counts down using the preset crushing duration. The breakage timing unit is used to periodically send the countdown length to the signal processing module, and the signal processing module compares the countdown length with a preset duration. If the countdown time is the same as the preset time, a metering restart signal is generated. Based on the metering restart signal, the sludge crushing unit is controlled to transport the sludge to be treated to the second conveyor belt, and the first conveyor belt is controlled to transport the sludge to be transported at a second preset frequency.

[0011] By adopting the above technical solution, the crushing timing unit is used to calculate the working time of the sludge crushing unit. After the preset crushing time ends, the sludge crushing unit can be controlled to transport the sludge to be treated to the second conveyor belt, and the first conveyor belt can be controlled to transport the sludge to be transported at the second preset frequency. This ensures that the sludge to be treated transported to the second conveyor belt is crushed by the sludge crushing unit, which facilitates the subsequent collection of the sludge to be treated and improves the overall sludge collection efficiency of the thermal power plant.

[0012] In some embodiments, the sludge collection module includes several sets of sludge receiving units arranged sequentially along the second conveyor belt and located directly below the second conveyor belt. A corresponding unloader is installed directly above each sludge receiving unit and is mounted on the second conveyor belt to facilitate the transport of the sludge to be treated on the second conveyor belt to the corresponding sludge receiving unit.

[0013] By adopting the above technical solution, the collection position of the sludge to be treated transported by the second conveyor belt can be adjusted based on the unloader of the sludge receiving unit. This allows the sludge to be treated on the second conveyor belt to be transported to other corresponding sludge receiving units in a timely manner after the sludge receiving unit is fully loaded. This reduces manual operation and automatically adjusts the transportation destination of the sludge to be treated, thereby improving the sludge treatment efficiency of the thermal power plant.

[0014] In some embodiments, the sludge collection module further includes an electromagnetic separator for adsorbing magnetic impurities in the sludge to be treated on the second conveyor belt.

[0015] In some of these embodiments, the first conveyor belt operates at either variable frequency or mains frequency.

[0016] By adopting the above technical solution, the first conveyor belt controls the sludge feed rate based on frequency conversion operation. When the first conveyor belt receives the crushing start signal, the conveying frequency of the first conveyor belt can be changed to ensure that the sludge crushing unit completes the crushing of the sludge to be transported inside it, and will not cause the accumulation of sludge to be transported near the first conveyor belt, thereby improving the overall sludge treatment efficiency.

[0017] In some embodiments, a sludge monitoring module is also included. This module monitors the sludge feeding module, the crushing and processing module, and the sludge collection module in real time, and takes video screenshots of each module to obtain comparison photos. The comparison photos are then sent to the signal processing module. The signal processing module extracts pixels from the comparison photos to obtain operation steps and determines whether the operation steps are compliant. If the operation steps are non-compliant, a warning signal is generated, and the first conveyor belt and the second conveyor belt are controlled based on the warning signal.

[0018] By adopting the above technical solution, the sludge monitoring module monitors the transportation process of the sludge to be transported, analyzes the monitoring video in a timely manner to obtain information on each operation step, and determines whether the operation steps are compliant. For non-compliant operation steps, timely response is taken, thereby improving the stability of the sludge treatment system in the thermal power plant, reducing the failure rate, and extending the service life of the system.

[0019] In some embodiments, the warning signal includes a correction signal, a correction alarm signal, and a deviation emergency stop signal. The signal processing module is used to obtain the corresponding warning signal according to each operation step and to obtain different operation schemes based on the warning signal. When the warning signal is the correction signal, the automatic correction device is controlled to adjust the transport routes of the first conveyor belt and the second conveyor belt according to the correction signal. When the warning signal is the deviation correction alarm signal, the automatic deviation correction device is controlled to adjust the transport routes of the first conveyor belt and the second conveyor belt according to the deviation correction alarm signal, and a deviation warning signal is generated and sent to the display screen. When the warning signal is a deviation emergency stop signal, the emergency stop tension switch is controlled to close based on the deviation emergency stop signal.

[0020] By adopting the above technical solution, the signal processing module obtains the corresponding warning signals according to each operation step, and obtains different operation schemes for the warning signals. When the warning signal is a correction signal, the automatic correction device is controlled to adjust the transportation routes of the first and second conveyor belts according to the correction signal; when the warning signal is a correction alarm signal, the automatic correction device is controlled to adjust the transportation routes of the first and second conveyor belts according to the correction alarm signal, and a deviation warning signal is generated and sent to the display screen; when the warning signal is a deviation emergency stop signal, the emergency stop tension switch is controlled to close according to the deviation emergency stop signal, thereby improving the adaptability and control accuracy of the system.

[0021] Secondly, this application provides an unattended sludge conveying method, which adopts the following technical solution: An unattended sludge conveying method, based on the unattended sludge conveying system described in the first aspect, includes the following steps: The sludge to be transported is received from the sludge loader and transported to the crushing module based on the first conveyor belt to obtain the total amount to be crushed. Determine whether the total amount to be crushed is equal to the preset total amount; If the total amount of crushed material is equal to the preset total amount, a crushing start signal is generated, and the first conveyor belt is controlled to stop transport based on the crushing start signal. The crushing module is controlled to crush the sludge to be transported in order to obtain sludge to be processed. The second conveyor belt is controlled to transport the sludge to be processed to the sludge bin corresponding to the sludge collection module.

[0022] In some embodiments, after determining whether the total amount to be crushed is equal to a preset total amount, the following steps are further included: If the total amount to be crushed is equal to the preset total amount, a variable frequency transport signal is generated, and the first conveyor belt is adjusted to transport the sludge to be transported at a first preset frequency according to the variable frequency transport signal. If the total amount to be crushed is not equal to the preset total amount, a power frequency transport signal is generated, and the first conveyor belt is controlled to transport the sludge to be transported at a second preset frequency according to the power frequency transport signal.

[0023] By adopting the above technical solution, the first conveyor belt controls the sludge feed rate based on frequency conversion operation. When the first conveyor belt receives the crushing start signal, the conveying frequency of the first conveyor belt can be changed to ensure that the sludge crushing unit completes the crushing of the sludge to be transported inside it, and will not cause the accumulation of sludge to be transported near the first conveyor belt, thereby improving the overall sludge treatment efficiency.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. The first and second conveyor belts are controlled by the signal processing module to automatically transport the sludge to the crushing and processing module and the sludge collection module, so as to realize the transportation and processing of the sludge to be transported, reduce the personnel configuration, and only require staff to monitor in real time in the monitoring room to improve the working environment of employees, improve the transportation efficiency of the sludge to be transported, thereby improving the production efficiency of the thermal power plant, realizing fully automated operation, reducing operating costs, and improving operating efficiency. 2. The sludge metering unit periodically acquires the total amount of sludge to be crushed within the sludge crushing unit and sends this amount to the signal processing module. Once the sludge to be transported within the sludge crushing unit reaches a preset total amount, the signal processing module generates a crushing start signal. Based on this signal, the first conveyor belt is adjusted to transport the sludge at a first preset frequency, and the sludge to be transported within the sludge crushing unit is crushed. This facilitates the subsequent transport and collection of the sludge by the sludge collection module, improving the efficiency of automatic sludge treatment within the thermal power plant and reducing manual operation. This avoids long-term exposure of workers to the harsh sludge treatment environment of the thermal power plant. Furthermore, it enables real-time and precise control of parameters such as sludge flow rate and conveying pressure, improving the stability of system operation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the unattended sludge conveying system provided in the embodiments of this application; Figure 2 This is a schematic diagram of the crushing and processing module and the sludge collection module provided in the embodiments of this application; Figure 3 This is a schematic diagram of the unattended sludge conveying process provided in the embodiments of this application; Figure 4 This is a block diagram of an unattended sludge conveying method provided in an embodiment of this application; Figure 5 This is a block diagram of the transportation method of the first conveyor belt provided in this embodiment.

[0026] Explanation of reference numerals in the attached drawings: 10, sludge feeding module; 11, sludge hopper; 20, crushing and processing module; 21, sludge metering unit; 22, sludge crushing unit; 221, crusher; 23, crushing timing unit; 30, sludge collection module; 31, sludge receiving unit; 311, sludge silo; 312, unloader; 32, electromagnetic separator; 40, signal processing module; 50, sludge monitoring module; 61, first conveyor belt; 62, second conveyor belt. Detailed Implementation

[0027] To better understand the purpose, technical solutions, and advantages of this application, it has been described and illustrated below with reference to the accompanying drawings and embodiments. However, those skilled in the art should understand that this application can be implemented without these details. In some cases, to avoid obscuring various aspects of this application due to unnecessary description, well-known methods, processes, systems, components, and / or circuits already described at a higher level will not be elaborated upon. It will be apparent to those skilled in the art that various modifications can be made to the embodiments disclosed in this application, and the general principles defined in this application can be applied to other embodiments and application scenarios without departing from the principles and scope of this application. Therefore, this application is not limited to the illustrated embodiments, but conforms to the broadest scope consistent with the scope of protection claimed in this application.

[0028] Reference Figure 1 This application discloses an unattended sludge conveying system, applied to a sludge conveying device. The sludge conveying device includes a sludge loader, which is used to acquire sludge to be transported. The sludge loader is installed in the sludge shed of a thermal power plant and is mainly used to transport the sludge to be transported from the sludge pool to the sludge feeding module 10 in the unattended sludge conveying system. It should be noted that the sludge transport signal is output by the signal processing module 40 to control the sludge loader to transport the sludge to be transported to the sludge feeding module 10.

[0029] like Figure 1 As shown, the unattended sludge conveying system includes a sludge feeding module 10, a crushing and processing module 20, a sludge collection module 30, and a signal processing module 40 for processing data from the sludge feeding module 10, the crushing and processing module 20, and the sludge collection module 30. The crushing and processing module 20 is connected to the sludge feeding module 10 via a first conveyor belt, and the sludge collection module 30 is connected to the crushing and processing module 20 via a second conveyor belt.

[0030] Specifically, the signal processing module 40 includes a sludge system control cabinet. This cabinet acquires and analyzes data from the sludge feeding module 10, crushing and processing module 20, sludge collection module 30, the first conveyor belt, and the second conveyor belt to obtain corresponding operational controls. The unattended sludge conveying system also includes a sludge system monitoring module. This module monitors the operations of the sludge feeding module 10, crushing and processing module 20, and sludge collection module 30 on the sludge to be transported and transmits the monitoring images to the monitoring room for staff to view.

[0031] To facilitate operation by staff, a one-button start / stop unattended sludge conveying system and an emergency stop button are installed on the sludge system monitoring screen, the sludge system control cabinet, and the second conveyor belt 62, respectively. Specifically, before processing the sludge to be transported, the signal processing module 40 first sends a sludge transport signal to the sludge loader, thereby controlling the sludge loader to transport the sludge to be transported to the sludge feeding module 10. The sludge transport signal can be generated by the signal processing module 40 and sent to the sludge loader by the staff directly clicking the one-button start button next to the sludge system monitoring screen.

[0032] Combination Figure 3 The sludge feeding module 10 receives sludge to be transported from the sludge loader. The crushing module 20 is connected to the sludge feeding module 10 via the first conveyor belt 61 to receive the sludge to be transported and crush it to obtain sludge to be processed. The sludge collection module 30 is connected to the crushing module 20 via the second conveyor belt 62 to receive the sludge to be processed. The sludge collection module 30 is used to transport the sludge to be processed to the corresponding sludge bin 311 according to a preset route. The signal processing module 40 is network-connected to the sludge loader to control the sludge loader to transport the sludge to be transported to the sludge feeding module 10. The signal processing module 40 is also used to control the first conveyor belt 61 to transport the sludge to be transported to the crushing module 20, and the signal processing module 40 is also used to control the second conveyor belt 62 to transport the sludge to be processed to the sludge bin 311 corresponding to the sludge collection module 30.

[0033] Among them, the sludge to be treated represents the sludge that has been crushed by the crusher 221, and the preset route represents the transportation route of the sludge to be treated on the second conveyor belt 62. The preset route can be set in advance.

[0034] Reference Figure 2 and Figure 3 The sludge feeding module 10 includes a sludge hopper 11, and the crushing module 20 includes a crusher 221. The sludge hopper 11 and the crusher 221 are connected by a first conveyor belt 61, with the outlet of the sludge hopper 11 directly above the first conveyor belt 61. The inlet of the crusher 221 is located directly below the first conveyor belt 61, and the outlet of the crusher 221 is located directly above the second conveyor belt 62. This allows the sludge to be transported to enter from the sludge hopper 11, fall onto the first conveyor belt 61, be transported by the first conveyor belt 61 to the inlet of the crusher 221, and then fall into the crusher 221. After being crushed by the crusher 221, the sludge falls onto the second conveyor belt 62 and is then transported by the conveyor belt to each sludge bin 311.

[0035] Specifically, the signal processing module 40 sends a sludge transport signal to the sludge loader to control the sludge loader to transport the sludge to be transported to the sludge feeding module 10. After the sludge to be transported falls from the sludge feeding module 10 onto the first conveyor belt 61, it is transported by the first conveyor belt 61 to the crushing and processing module 20 for crushing and processing to obtain the sludge to be processed. The sludge then falls from the outlet of the crusher 221 in the crushing and processing module 20 onto the second conveyor belt 62. The signal processing module 40 controls the second conveyor belt 62 to transport the sludge to be processed to the sludge bin 311 corresponding to the sludge collection module 30.

[0036] In one embodiment, the crushing module 20 includes a sludge metering unit 21 and a sludge crushing unit 22. The sludge metering unit 21 is used to periodically obtain the total amount of sludge to be crushed in the sludge crushing unit 22 and send the total amount of sludge to be crushed to the signal processing module 40. The signal processing module 40 compares the total amount of sludge to be crushed with a preset total amount and determines whether the total amount of sludge to be crushed is equal to the preset total amount. If the total amount of sludge to be crushed is equal to the preset total amount, the signal processing module 40 generates a crushing start signal and adjusts the first conveyor belt 61 to transport the sludge to be transported at a first preset frequency according to the crushing start signal. The signal processing module 40 also controls the sludge crushing unit 22 to crush the sludge to be transported according to the crushing start signal.

[0037] The total amount to be crushed represents the total amount of sludge in the sludge crushing unit 22, while the preset total amount represents the standard value for crushing by the sludge crushing unit 22. The preset total amount is set according to different models of crushers 221, which will not be elaborated on here. The crushing start signal represents the signal of the crusher 221 to crush the sludge to be transported. When the sludge crushing unit 22 receives the crushing start signal, it closes the inlet of the sludge to be transported and starts the crushing operation to obtain the corresponding sludge to be processed. The sludge metering unit 21 includes a pressure sensor installed in the crusher 221, which periodically obtains the total amount of sludge to be crushed in the crusher 221.

[0038] It should be noted that the first preset frequency represents a slower transport signal and is in a frequency conversion state, which reduces the transport efficiency of the first conveyor belt 61 and ensures the output of the crusher 221 of the sludge to be treated.

[0039] When the first conveyor belt 61 transports the sludge to be transported to the inlet of the crusher 221, and the pressure sensor of the crusher 221 detects the pressure, it is determined that the sludge to be transported has entered the crusher 221. The sludge metering unit 21 sends the total amount to be crushed to the signal processing module 40 until the signal processing module 40 generates the corresponding crushing start signal and controls the first conveyor belt 61 to stop transporting according to the crushing start signal. At the same time, it controls the sludge metering unit 21 to stop acquiring sludge values ​​according to the crushing start signal.

[0040] In one embodiment, the crushing processing module 20 further includes a crushing timing unit 23, which is network-connected to the signal processing module 40 to receive a crushing start signal and generate a corresponding preset crushing duration based on the crushing start signal, and counts down using the preset crushing duration.

[0041] The crushing timing unit 23 periodically sends a countdown timer to the signal processing module 40, which compares the countdown timer with a preset duration. If the countdown timer matches the preset duration, a metering restart signal is generated. Based on the metering restart signal, the sludge crushing unit 22 is controlled to transport the sludge to be processed to the second conveyor belt 62, and the first conveyor belt 61 is controlled to transport the sludge to be transported at a second preset frequency.

[0042] The preset crushing time represents the standard time required for the sludge to be crushed in the crusher 221. After crushing for the preset time, sludge suitable for subsequent processing can be obtained. The countdown time represents the countdown displayed by the crushing timer unit 23. The countdown time is sent to the signal processing module 40. The preset time is set to 0. The signal processing module 40 compares the countdown time with the preset time. If the countdown time is 0, it is determined that the countdown has ended with the preset crushing time. Therefore, the signal processing module 40 generates a corresponding metering restart signal and controls the sludge crushing unit 22 to transport the sludge to be processed to the second conveyor belt 62 according to the metering restart signal. It also controls the first conveyor belt 61 to transport the sludge to be transported at a second preset frequency. The second preset frequency is a fixed frequency, indicating that the total amount of sludge to be crushed in the crusher 221 is less than the preset total amount.

[0043] It should be noted that, in order to improve the processing efficiency of the sludge to be transported, the crusher 221 simultaneously receives the sludge to be transported from the first conveyor belt 61 and outputs the sludge to be processed after crushing. By crushing the sludge to be transported through the crusher 221, fixed impurities in the sludge are broken down, thus facilitating the subsequent collection of the sludge to be processed.

[0044] In one embodiment, the sludge collection module 30 includes several sets of sludge receiving units 31. The sludge receiving units 31 are arranged sequentially along the second conveyor belt 62 and are located directly below the second conveyor belt 62. A corresponding unloader 312 is installed directly above the sludge receiving unit 31. The unloader 312 is installed on the second conveyor belt 62 to facilitate the transport of the sludge to be treated on the second conveyor belt 62 to the corresponding sludge receiving unit 31.

[0045] The sludge receiving unit 31 includes several sludge bins 311, and each sludge bin 311 is arranged sequentially along the second conveyor belt 62, all located below the second conveyor belt 62. Each sludge bin 311 is equipped with a discharger 312 above it. The discharger 312 can change the transport direction of the sludge to be treated on the second conveyor belt 62, so that the sludge to be treated can fall into the corresponding sludge bin 311 below. In this embodiment, four sludge bins 311 are set, one of which is located at the end of the second conveyor belt 62 away from the crusher 221, and the remaining three sludge bins 311 are arranged sequentially along the direction of the second conveyor belt 62.

[0046] It should be noted that the specific installation of the unloader 312 and the second conveyor belt 62 adopts existing technology, which will not be elaborated on here. This application only implements the signal processing module 40 to control the start of each unloader 312, thereby realizing the collection process of the sludge to be treated. Specifically, the sludge to be treated can be collected by clicking the switch button of the corresponding unloader 312 on the monitoring screen.

[0047] In one embodiment, the sludge collection module 30 further includes an electromagnetic separator 32 for adsorbing magnetic impurities in the sludge to be treated on the second conveyor belt 62.

[0048] The electromagnetic separator 32 is mainly used to adsorb magnetic materials in the sludge to be treated, such as reducing elements like iron and manganese, and improving the collection accuracy of the sludge. In specific operation, when the second conveyor belt 62 transports the sludge to be treated to the area below the electromagnetic separator 32, the signal processing module 40 sends an iron removal signal to control the electromagnetic separator 32 to descend, completing the adsorption of magnetic materials from the sludge. Then, the signal processing module 40 generates a corresponding collection signal to control the corresponding unloader 312 to open, completing the collection of the sludge.

[0049] In one embodiment, the first conveyor belt 61 operates at either variable frequency or mains frequency.

[0050] When the first conveyor belt 61 transports the sludge to be transported to the crusher 221, the crusher 221 needs to perform crushing treatment for a preset crushing time. Therefore, in order to avoid the accumulation of sludge and ensure the smooth flow of the entire transportation, it is necessary to control the working frequency of the first conveyor belt 61, so as to ensure the crushing treatment of the crusher 221 and the output of the sludge to be processed.

[0051] The specific switching process is as follows: the signal processing module 40 determines the relationship between the total amount of sludge to be crushed in the crusher 221 and the preset total amount. If the total amount to be crushed is equal to the preset total amount, a variable frequency transport signal is generated, and the first conveyor belt 61 is adjusted to transport the sludge to be transported at a first preset frequency according to the variable frequency transport signal. If the total amount to be crushed is not equal to the preset total amount, a power frequency transport signal is generated, and the first conveyor belt 61 is controlled to transport the sludge to be transported at a second preset frequency according to the power frequency transport signal.

[0052] It should be noted that the first preset frequency represents a slower transport signal and is in a variable frequency state, reducing the transport efficiency of the first conveyor belt 61 to ensure the output of the crusher 221. The second preset frequency is a fixed frequency, indicating that the total amount of sludge to be crushed in the crusher 221 is less than the preset amount. Since the signal processing module 40 continuously controls the transport frequency of the first conveyor belt 61, when the total amount of sludge to be crushed is higher than the preset amount, the transport frequency of the first conveyor belt 61 can be reduced. In fact, the transport of the first conveyor belt 61 can be directly turned off by the operator clicking the emergency shut-off button on the monitoring screen. After the transport of the first conveyor belt 61 is turned off, the corresponding sludge loader also stops transporting sludge to the sludge hopper 11.

[0053] In one embodiment, a sludge monitoring module 50 is also included. This module monitors the sludge feeding module 10, the crushing and processing module 20, and the sludge collection module 30 in real time, takes video screenshots of each module to obtain comparison photos, and sends these comparison photos to the signal processing module 40. The signal processing module 40 extracts pixels from the comparison photos to obtain the operating steps and determines whether the operating steps are compliant. If the operating steps are non-compliant, a warning signal is generated, and the first conveyor belt 61 and the second conveyor belt 62 are controlled based on the warning signal.

[0054] To enable real-time monitoring of the sludge feeding module 10, crushing and processing module 20, and sludge collection module 30, monitoring cameras are installed in each module to acquire corresponding monitoring videos. Screenshots are periodically taken from the monitoring videos to obtain comparison photos. The signal processing module 40 performs pixel extraction on the comparison photos to obtain the operating steps and determines whether the operating steps are compliant. If the operating steps are non-compliant, a warning signal is generated, and the first conveyor belt 61 and the second conveyor belt 62 are controlled accordingly. The warning signal indicates that the signal processing module 40 has detected non-compliant operations in the monitoring video and notifies the staff so that timely maintenance can be carried out.

[0055] Specifically, the warning signals include correction signals, correction alarm signals, and deviation emergency stop signals. The signal processing module 40 is used to obtain the corresponding warning signals according to each operation step and to obtain different operation schemes based on the warning signals.

[0056] Specifically, when the warning signal is a correction signal, the automatic correction device is controlled to adjust the transport routes of the first conveyor belt 61 and the second conveyor belt 62 based on the correction signal. When the warning signal is a correction alarm signal, the automatic correction device is controlled to adjust the transport routes of the first conveyor belt 61 and the second conveyor belt 62 based on the correction alarm signal, and a deviation warning signal is generated and sent to the display screen. When the warning signal is a deviation emergency stop signal, the emergency stop tension switch is controlled to close based on the deviation emergency stop signal.

[0057] Specifically, the automatic deviation correction device can control the conveying direction of sludge in the first conveyor belt 61 and the second conveyor belt 62 to prevent sludge from flowing out from both sides of the conveyor belt. The deviation emergency stop signal is mainly applicable when there is a large deviation in the sludge transport route of the conveyor belt. At this time, manual adjustment is required. Therefore, the signal processing module 40 generates a deviation emergency stop signal to control the emergency stop tension switch to close.

[0058] It should be noted that when staff review the surveillance video and discover any issues, they can directly click the emergency stop switch next to the monitor screen to prevent equipment damage.

[0059] This application also discloses an unattended sludge transportation method.

[0060] like Figure 4 As shown, the unattended sludge conveying method includes the following steps: S100 receives the sludge to be transported provided by the sludge loader and transports the sludge to be transported to the crushing and processing module based on the first conveyor belt to obtain the total amount to be crushed.

[0061] S200, determine whether the total amount to be crushed is equal to the preset total amount.

[0062] S300, if the total amount of crushed material is equal to the preset total amount, a crushing start signal is generated, and the first conveyor belt is controlled to stop transport based on the crushing start signal.

[0063] S400 controls the crushing and processing module to crush the sludge to be transported in order to obtain sludge to be processed.

[0064] S500 controls the second conveyor belt to transport the sludge to be processed to the sludge bin corresponding to the sludge collection module.

[0065] The other functions mentioned in steps S100-S500 above, as well as the technical details of each function, are the same as or similar to the corresponding features in the unattended sludge conveying system described above, so they will not be repeated here.

[0066] Reference Figure 5 In one embodiment, after determining whether the total amount to be crushed is equal to the preset total amount, the following steps are also included: S600, if the total amount of crushed material is equal to the preset total amount, a frequency conversion transport signal is generated, and the first conveyor belt is adjusted to transport the sludge to be transported according to the first preset frequency based on the frequency conversion transport signal.

[0067] S700: If the total amount of crushed material is not equal to the preset total amount, an industrial frequency transport signal is generated, and the first conveyor belt is controlled to transport the sludge to be transported according to the second preset frequency based on the industrial frequency transport signal.

[0068] The specific content described in steps S600-S700 above is the same as or similar to the corresponding features in the unattended sludge conveying system described above, and will not be elaborated further here.

[0069] The implementation principle is as follows: The signal processing module 40 first sends a sludge transport signal to the sludge loader, thereby controlling the sludge loader to transport the sludge to be transported to the sludge feeding module 10. The signal processing module 40 sends a sludge transport signal to the sludge loader to control the sludge loader to deliver the sludge to be transported to the sludge feeding module 10. After the sludge to be transported falls from the sludge feeding module 10 onto the first conveyor belt 61, it is transported by the first conveyor belt 61 to the crushing and processing module 20 for crushing and processing to obtain the sludge to be processed. The sludge then falls from the outlet of the crusher 221 in the crushing and processing module 20 onto the second conveyor belt 62. The signal processing module 40 controls the second conveyor belt 62 to transport the sludge to be processed to the sludge bin 311 corresponding to the sludge collection module 30.

[0070] It should be understood that although the steps in the flowcharts in the accompanying drawings are shown sequentially as indicated by the arrows, these steps are not necessarily performed in the order indicated by the arrows. Unless otherwise expressly stated herein, there is no strict order in which these steps are performed, and they may be performed in other orders.

[0071] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An unattended sludge conveying system, comprising a sludge loader, the sludge loader being used to acquire sludge to be transported, characterized in that, include: Sludge feeding module (10), the sludge feeding module (10) is used to receive the sludge to be transported provided by the sludge loader; The crushing module (20) is connected to the sludge feeding module (10) via a first conveyor belt to receive the sludge to be transported and to crush the sludge to be transported in order to obtain sludge to be processed. The sludge collection module (30) is connected to the crushing and processing module (20) via a second conveyor belt to receive the sludge to be processed. The sludge collection module (30) is used to transport the sludge to be processed to the corresponding sludge bin according to a preset route. The signal processing module (40) is network-connected to the sludge loader to control the sludge loader to transport the sludge to be transported to the sludge feeding module (10). The signal processing module (40) is also used to control the first conveyor belt to transport the sludge to be transported to the crushing and processing module (20), and the signal processing module (40) is also used to control the second conveyor belt to transport the sludge to be processed to the sludge bin corresponding to the sludge collection module (30).

2. The unattended sludge conveying system according to claim 1, characterized in that, The crushing module (20) includes a sludge metering unit (21) and a sludge crushing unit (22). The sludge metering unit (21) is used to periodically obtain the total amount to be crushed in the sludge crushing unit (22) and send the total amount to be crushed to the signal processing module (40). The signal processing module (40) compares the total amount to be broken with the preset total amount and determines whether the total amount to be broken is equal to the preset total amount; If the total amount of crushed material is equal to the preset total amount, the signal processing module (40) generates a crushing start signal and adjusts the first conveyor belt to transport the sludge to be transported at a first preset frequency according to the crushing start signal; and controls the sludge crushing unit (22) to crush the sludge to be transported according to the crushing start signal.

3. The unattended sludge conveying system according to claim 2, characterized in that, The crushing processing module (20) further includes a crushing timing unit (23), which is network connected to the signal processing module (40) to receive the crushing start signal and generate a corresponding preset crushing duration based on the crushing start signal, and counts down based on the preset crushing duration; The breakage timing unit (23) is used to periodically send the countdown length to the signal processing module (40), and the signal processing module (40) compares the countdown length with a preset duration; If the countdown time is the same as the preset time, a metering restart signal is generated. Based on the metering restart signal, the sludge crushing unit (22) is controlled to transport the sludge to be treated to the second conveyor belt, and the first conveyor belt is controlled to transport the sludge to be transported at a second preset frequency.

4. The unattended sludge conveying system according to claim 1, characterized in that, The sludge collection module (30) includes several sets of sludge receiving units (31). The sludge receiving units (31) are arranged sequentially along the second conveyor belt and are located directly below the second conveyor belt. A corresponding unloader is installed directly above the sludge receiving unit (31). The unloader is installed on the second conveyor belt to facilitate the transport of the sludge to be treated on the second conveyor belt to the corresponding sludge receiving unit (31).

5. The unattended sludge conveying system according to claim 4, characterized in that, The sludge collection module (30) also includes an electromagnetic separator (32), which is used to adsorb magnetic impurities in the sludge to be treated on the second conveyor belt.

6. The unattended sludge conveying system according to claim 1 or 2, characterized in that, The first conveyor belt operates by switching between frequency conversion and mains frequency.

7. The unattended sludge conveying system according to claim 1, characterized in that, It also includes a sludge monitoring module (50), which is used to monitor the sludge feeding module (10), the crushing and processing module (20) and the sludge collection module (30) in real time, and take video screenshots of each module to obtain comparison photos, and send the comparison photos to the signal processing module (40); the signal processing module (40) extracts pixels from the comparison photos to obtain the operation steps, and determines whether the operation steps are compliant; if the operation steps are not compliant, a warning signal is generated, and the first conveyor belt and the second conveyor belt are controlled according to the warning signal.

8. The unattended sludge conveying system according to claim 7, characterized in that, The warning signals include correction signals, correction alarm signals and deviation emergency stop signals. The signal processing module (40) is used to obtain the corresponding warning signals according to each operation step and to obtain different operation schemes based on the warning signals. When the warning signal is the correction signal, the automatic correction device is controlled to adjust the transport routes of the first conveyor belt and the second conveyor belt according to the correction signal. When the warning signal is the deviation correction alarm signal, the automatic deviation correction device is controlled to adjust the transport routes of the first conveyor belt and the second conveyor belt according to the deviation correction alarm signal, and a deviation warning signal is generated and sent to the display screen. When the warning signal is a deviation emergency stop signal, the emergency stop tension switch is controlled to close based on the deviation emergency stop signal.

9. A method for unattended sludge conveying, characterized in that, The unattended sludge conveying system according to any one of claims 1-8 is executed, including the following steps: The sludge to be transported is received from the sludge loader and transported to the crushing module (20) based on the first conveyor belt to obtain the total amount to be crushed. Determine whether the total amount to be crushed is equal to the preset total amount; If the total amount of crushed material is equal to the preset total amount, a crushing start signal is generated, and the first conveyor belt is controlled to stop transport based on the crushing start signal. The crushing module (20) is controlled to crush the sludge to be transported in order to obtain sludge to be processed; The second conveyor belt is controlled to transport the sludge to be treated to the sludge bin corresponding to the sludge collection module (30).

10. The unattended sludge conveying method according to claim 9, characterized in that, After determining whether the total amount to be crushed is equal to the preset total amount, the following steps are also included: If the total amount to be crushed is equal to the preset total amount, a variable frequency transport signal is generated, and the first conveyor belt is adjusted to transport the sludge to be transported at a first preset frequency according to the variable frequency transport signal. If the total amount to be crushed is not equal to the preset total amount, a power frequency transport signal is generated, and the first conveyor belt is controlled to transport the sludge to be transported at a second preset frequency according to the power frequency transport signal.

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