A sludge drying control method, device and electronic equipment

Abstract

The embodiments of this specification disclose a sludge drying control method, device and electronic device. The method includes determining the speed range of the disc dryer based on the sludge feed amount per unit time, adjusting the speed of the disc dryer, and determining a first speed; adjusting the current speed of the disc dryer to a second speed within a second time period at each first time interval, and collecting a cross-sectional image of the disc dryer after the current speed is adjusted to the second speed for a third time period; determining the current water content of the sludge, and generating a discharge control instruction after the current water content is less than the target water content. The embodiments of this specification ensure that the water content is uniform during the sludge drying process, and can more accurately estimate the water content of the sludge, reduce the extreme conditions of the sludge being too dry or too wet, and improve the overall drying efficiency of the sludge.

Description

Technical Field

[0001] One or more embodiments of the present specification relate to thermoelectric power generation technology, and more particularly to a sludge drying control method, device and electronic equipment. Background Art

[0002] In the sludge drying and incineration disposal process, the sludge needs to be dried to reduce the water content of the sludge, so as to facilitate the subsequent further treatment of the sludge, so as to achieve the purpose of large-scale sludge reduction, stabilization, harmlessness, and resource consumption. Generally, the sludge is transported to the dryer, and the humidity and humidity adjustment inside the dryer are used to remove various moisture inside the sludge to achieve the purpose of drying the sludge. However, due to the inability to perform more precise intelligent control of the dryer at present, the sludge water content is prone to unevenness and the sludge water content cannot be accurately determined during the drying process. As a result, some sludge will appear dusty during the drying process due to excessive drying, and excessive moisture will adhere to the inner wall of the transfer equipment, causing blockage, affecting the subsequent work effect of the dryer, affecting the calorific value of the fuel entering the furnace, and increasing the smoke exhaust loss. At the same time, the transfer equipment needs to be cleaned frequently, affecting the overall drying efficiency of the sludge. Summary of the invention

[0003] In order to solve the above problems, one or more embodiments of this specification describe a sludge drying control method, device and electronic device.

[0004] According to a first aspect, a sludge drying control method is provided, the method comprising:

[0005] Determine a rotation speed range of the disc dryer based on the sludge feed amount per unit time, adjust the rotation speed of the disc dryer based on the rotation speed range, determine a first rotation speed, and control the rotation of the disc dryer based on the first rotation speed, wherein the first rotation speed is a rotation speed at which the sludge just performs a circular motion;

[0006] At intervals of a first time length, the current rotation speed of the disc dryer is adjusted to a second rotation speed within a second time length, and a cross-sectional image of the disc dryer is acquired after the current rotation speed is adjusted to the second rotation speed for a third time length, wherein the second rotation speed is less than the first rotation speed, and the third time length is less than the second time length;

[0007] The current water content of the sludge is determined based on the sludge position distribution ratio of the cross-sectional image, and a discharge control instruction is generated after the current water content is less than the target water content.

[0008] Preferably, before determining the rotation speed range of the disc dryer based on the sludge feed amount per unit time, the method further includes:

[0009] Acquire sludge drying plan information, determine the sludge delivery volume per unit time based on the sludge drying plan information, and adjust the valve opening of the feed port based on the sludge delivery volume so that the sludge volume that can pass through the feed port per unit time is not greater than the sludge delivery volume.

[0010] Preferably, adjusting the rotation speed of the disc dryer based on the rotation speed range to determine the first rotation speed includes:

[0011] Acquire parameter information of the disc dryer, and construct a digital twin model corresponding to the disc dryer based on the parameter information;

[0012] In the digital twin model, the rotational speed of the disc dryer is adjusted based on the rotational speed range to determine a first rotational speed.

[0013] Preferably, the determining the current water content of the sludge based on the sludge position distribution ratio of the cross-sectional image includes:

[0014] Determining a first moisture content of the sludge based on the sludge position distribution ratio of the cross-sectional image, and determining a second moisture content of the sludge based on measurement data of the microwave moisture meter;

[0015] The first moisture content and the second moisture content are weightedly calculated to obtain the current moisture content of the sludge.

[0016] Preferably, after determining the current water content of the sludge based on the sludge position distribution ratio of the cross-sectional image, the method further includes:

[0017] Determine the moisture content interval corresponding to the current moisture content, and determine the target temperature and target humidity corresponding to the moisture content interval, and adjust the current temperature, current humidity, drying heat source working fluid flow and thermal state parameters of the vent conveying air flow based on the target temperature and target humidity.

[0018] Preferably, the method further comprises:

[0019] Dividing the cross-sectional image into a plurality of judgment areas, determining the regional moisture content of each judgment area based on the sludge position distribution ratio in the judgment area, at least one side of the judgment area is the side of the cross-sectional image, and a vertex of the judgment area is the center point of the cross-sectional image;

[0020] When there is a target judgment area whose regional moisture content is not higher than the target moisture content, and the average moisture content of each judgment area is not higher than the preset moisture content, a discharge control instruction is generated and a first reminder message is sent to a preset terminal, and the preset moisture content is higher than the target moisture content.

[0021] Preferably, the method further comprises:

[0022] When there is a target judgment area whose regional moisture content is not higher than the target moisture content, and the average moisture content of each judgment area is higher than the preset moisture content, the current wind speed of the airflow delivered by the vent is increased, and a second reminder message is sent to the preset terminal.

[0023] According to a second aspect, a sludge drying control device is provided, the device comprising:

[0024] A determination module, configured to determine a speed range of the disc dryer based on the sludge feed amount per unit time, adjust the speed of the disc dryer based on the speed range, determine a first speed, and control the rotation of the disc dryer based on the first speed, wherein the first speed is a speed at which the sludge just performs a circular motion;

[0025] an adjustment module, for adjusting the current rotation speed of the disc dryer to a second rotation speed within a second time period at intervals of a first time period, and acquiring a cross-sectional image of the disc dryer after the current rotation speed is adjusted to the second rotation speed for a third time period, wherein the second rotation speed is less than the first rotation speed, and the third time period is less than the second time period;

[0026] The control module is used to determine the current water content of the sludge based on the sludge position distribution ratio of the cross-sectional image, and generate a discharge control instruction after the current water content is less than the target water content.

[0027] According to a third aspect, there is provided an electronic device, comprising a processor and a memory;

[0028] The processor is connected to the memory;

[0029] The memory is used to store executable program code;

[0030] The processor runs a program corresponding to the executable program code by reading the executable program code stored in the memory, so as to execute the steps of the method provided in the first aspect or any possible implementation manner of the first aspect.

[0031] According to a fourth aspect, a computer-readable storage medium is provided, on which a computer program is stored, and the computer-readable storage medium stores instructions, which, when the instructions are executed on a computer or a processor, cause the computer or the processor to execute the method provided in the first aspect or any possible implementation of the first aspect.

[0032] The method and device provided in the embodiments of this specification can determine the first rotation speed according to the sludge feed amount, so as to avoid the problem that part of the sludge clings to the inner wall of the dryer due to excessive centripetal force, resulting in uneven overall water content of the sludge during the drying process. At the same time, after each first period of time, the sludge position distribution is determined by reducing the rotation speed and collecting images, so as to judge the water content of the sludge by the degree to which the sludge is separated from the inner wall, and then the discharge control is carried out in time after the water content is less than the target water content. Through the above method, the water content is guaranteed to be uniform during the sludge drying process, and the water content of the sludge can be estimated more accurately, reducing the extreme conditions of the sludge being too dry or too wet, and improving the overall drying efficiency of the sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 It is a flow chart of a sludge drying control method in one embodiment of the present specification.

[0035] Figure 2 It is a structural schematic diagram of a sludge drying control device in one embodiment of this specification.

[0036] Figure 3 It is a structural diagram of an electronic device in one embodiment of this specification. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0038] In the following introduction, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The following introduction provides multiple embodiments of the present application, and different embodiments can be replaced or combined, so the present application can also be considered to include all possible combinations of the same and / or different embodiments recorded. Therefore, if one embodiment includes features A, B, and C, and another embodiment includes features B and D, then the present application should also be considered to include embodiments containing one or more of all other possible combinations of A, B, C, and D, although the embodiment may not be clearly recorded in the following text.

[0039] The following description provides examples and does not limit the scope, applicability or examples set forth in the claims. Changes may be made to the functions and arrangements of the elements described without departing from the scope of the present application. Various processes or components may be appropriately omitted, substituted or added to each example. For example, the described method may be performed in an order different from the order described, and various steps may be added, omitted or combined. In addition, features described in some examples may be combined in other examples.

[0040] See also Figure 1 , Figure 1 : is a flow chart of a sludge drying control method provided in an embodiment of the present application. In the embodiment of the present application, the method comprises:

[0041] S101. Determine a rotation speed range of the disc dryer based on the sludge feed amount per unit time, adjust the rotation speed of the disc dryer based on the rotation speed range, determine a first rotation speed, and control the rotation of the disc dryer based on the first rotation speed.

[0042] The first rotation speed is a rotation speed that allows the sludge to just perform a circular motion.

[0043] The execution entity of this application can be a cloud server.

[0044] In the embodiment of the present specification, during the process of continuously inputting sludge into the feed port of the disc dryer, the cloud server can determine the sludge feed amount per unit time by means of flow sensor detection, image recognition, etc. According to the sludge feed amount and feeding time, the cloud server can determine the total amount of sludge finally contained in the dryer. Since the disc dryer needs to drive the sludge to move in a circular motion along the inner wall of the dryer by rotation, and introduce wind with a certain temperature and humidity and a certain enthalpy value of the working medium to dry the sludge, the more the total amount of sludge, that is, the heavier the sludge, the greater the centripetal force required for circular motion, and the higher the required dryer speed. At the same time, too high a speed reduces the contact time between the sludge and the disc, worsens the effect of heat transfer, and the heat cannot be effectively transferred to the inside of the sludge, causing the various water in the sludge to be unable to be effectively separated. Whether the speed is too high or too low, there will be certain problems. In addition, when the speed is too high, a part of the sludge will be too close to the inner wall of the dryer due to the excessive centripetal force, resulting in a different degree of drying of this part of the sludge over time than other sludge, resulting in uneven overall water content of the sludge, and some sludge is too dry and adheres to the inner wall. When the speed is too low, the centripetal force brought by the rotation cannot drive the sludge to move in a circular motion as a whole. The sludge mainly gathers under the dryer disc, which can easily lead to uneven water content and affect the drying effect. Therefore, the staff can set different speed ranges for different sludge feed amounts in advance based on tests and experience. This speed range can be regarded as the range of speeds that the staff believes can make the sludge move in a normal circular motion. Since the sludge feed amount is ultimately an estimate, the cloud server will first traverse each speed in the speed range to determine the first speed that can actually allow the sludge to move in a circular motion through the camera's collection and recognition of the internal image of the dryer. The first speed is a speed that will neither allow the sludge to stick too close to the inner wall nor prevent the sludge from falling due to circular motion. The cloud server will regard it as the optimal speed in the normal drying process and control the rotation of the disc dryer at the first speed.

[0045] In one embodiment, before determining the rotation speed range of the disc dryer based on the sludge feed amount per unit time, the method further includes:

[0046] Acquire sludge drying plan information, determine the sludge delivery volume per unit time based on the sludge drying plan information, and adjust the valve opening of the feed port based on the sludge delivery volume so that the sludge volume that can pass through the feed port per unit time is not greater than the sludge delivery volume.

[0047] In the embodiments of this specification, the sludge drying process is generally pre-arranged by the staff according to the corresponding drying plan, that is, how much sludge is input for drying in what time period. The cloud server can query and obtain the sludge drying plan information to determine the amount of sludge to be dried in the current batch, and how much sludge delivery rate the aforementioned equipment will use to continuously deliver the sludge to the disc dryer. The feed port of the disc dryer is provided with a valve. If the sludge delivery rate is small and the valve opening is large, the sludge input into the dryer will be unevenly distributed, which may easily lead to uneven water content in the subsequent drying process. Therefore, a valve opening mapping database can first be stored in the cloud server, which stores the mapping relationship between the valve opening and the sludge feed amount per unit time, that is, the sludge amount. Then, the cloud server will select the corresponding valve opening according to the sludge delivery amount, so that the sludge amount that can pass through does not exceed the sludge delivery amount. Through such a setting, it can be ensured that the feed port continues to input sludge at the maximum input amount corresponding to the valve opening, thereby ensuring that the sludge input into the final dryer is evenly distributed.

[0048] In one embodiment, the adjusting the rotation speed of the disc dryer based on the rotation speed range to determine the first rotation speed includes:

[0049] Acquire parameter information of the disc dryer, and construct a digital twin model corresponding to the disc dryer based on the parameter information;

[0050] In the digital twin model, the rotational speed of the disc dryer is adjusted based on the rotational speed range to determine a first rotational speed.

[0051] In the embodiments of this specification, in order to avoid the disc dryer actually traversing the speed adjustment within the speed range, because the traversal to an inappropriate speed causes damage to the dryer, or the sludge is dried to a certain extent in this process, resulting in poor precise control of the subsequent drying process, the cloud server can obtain the parameter information of the disc dryer, and the parameter information can include operating parameters, structural parameters, etc., and construct a digital twin model corresponding to the disc dryer through the parameter information. Then, the speed range is traversed in the digital twin model to simulate and determine the first speed. In this way, the first speed can be determined without actually traversing the speed of the dryer, and the speed of the dryer can be directly controlled at the first speed.

[0052] S102, at intervals of a first time length, adjusting the current rotation speed of the disc dryer to a second rotation speed within a second time length, and acquiring a cross-sectional image of the disc dryer after the current rotation speed is adjusted to the second rotation speed for a third time length.

[0053] The second rotation speed is smaller than the first rotation speed, and the third duration is smaller than the second duration.

[0054] In the embodiment of the present specification, after the dryer starts drying, the cloud server will adjust the current speed to a second speed with a smaller speed every first time interval (for example, 2 minutes), and maintain the second time interval (for example, 10 seconds). There are two main purposes for doing this. First, after the speed decreases, the sludge will perform a circular motion with a smaller radius while maintaining the inertia of the circular motion in a short period of time, so that the sludge will detach from the inner wall of the dryer, and different water contents will cause the sludge to have different adhesions. The higher the adhesion, the lower the degree of sludge detachment from the inner wall, which can be used to judge the actual water content of the sludge. Second, in the process of maintaining the first speed and continuous rotation, there may still be different degrees of drying of some sludges, and after the sludge cannot maintain inertia, it will fall back to the bottom, so that all the sludges are remixed together to avoid the obvious difference between the water content of some sludges and the water content of the rest of the sludge over time. After adjusting the current speed to the second speed, the cloud server will collect a cross-sectional image of the inside of the disc dryer through the camera after a third period of time (e.g. 1 second), that is, when the sludge is still maintaining inertia to perform circular motion with a smaller radius, so that the water content of the sludge can be determined by image processing in subsequent steps.

[0055] S103, determining the current water content of the sludge based on the sludge position distribution ratio of the cross-sectional image, and generating a discharge control instruction after the current water content is less than the target water content.

[0056] In the embodiments of the present specification, the cross-sectional image can show the image corresponding to the plane of the circular motion of the sludge. By identifying the sludge in the image, the position distribution of the sludge can be determined. Then, according to the proportion of sludge distributed at each position, the current water content of the sludge can be determined. The closer the image is to the middle position, the higher the proportion of sludge, and the higher the water content. The closer the sludge is to the inner wall position, the higher the proportion of sludge, and the lower the water content. The specific process of determining the water content by the sludge position distribution ratio can be that the staff pre-sets different water contents for different sludge proportions at each position according to previous tests and experience, and constructs a water content mapping database based on this. In actual situations, the cloud server only needs to determine the sludge position distribution ratio through image recognition of the cross-sectional image, and then query the water content mapping database to obtain the current water content. If the current moisture content is lower than the target moisture content, it is considered that the sludge drying degree has reached the standard. Continuing to dry it will easily cause the sludge to be too dry and adhere to the inner wall of the dryer. At this time, the cloud server will generate a discharge control instruction to control the disc dryer to open the discharge port and discharge the sludge from the discharge port.

[0057] In one possible implementation, the determining the current water content of the sludge based on the sludge position distribution ratio of the cross-sectional image includes:

[0058] Determining a first moisture content of the sludge based on the sludge position distribution ratio of the cross-sectional image, and determining a second moisture content of the sludge based on measurement data of the microwave moisture meter;

[0059] The first moisture content and the second moisture content are weightedly calculated to obtain the current moisture content of the sludge.

[0060] In the embodiments of this specification, in order to more accurately determine the current moisture content of the sludge, in addition to determining the first moisture content by the sludge position distribution ratio in the cross-sectional image, conventional means are also used, such as using a microwave moisture meter to measure the inside of the dryer to obtain measurement data, and the moisture content obtained in the measurement data is used as the second moisture content. The moisture content measured by the microwave moisture meter is generally the local moisture content at the discharge port, so different weights are first set for the first moisture content and the second moisture content according to the actual situation, and finally the weighted value of the two is used as the final current moisture content of the sludge.

[0061] In one possible implementation, after determining the current water content of the sludge based on the sludge position distribution ratio of the cross-sectional image, the method further includes:

[0062] Determine the moisture content interval corresponding to the current moisture content, and determine the target temperature and target humidity corresponding to the moisture content interval, and adjust the current temperature, current humidity, drying heat source working fluid flow and thermal state parameters of the vent conveying air flow based on the target temperature and target humidity.

[0063] In the embodiments of this specification, in order to make the moisture content more uniform, the cloud server will adopt a step-by-step control drying process, that is, it does not use a constant air volume with a fixed temperature and humidity and a fixed drying heat source working fluid flow and thermal state parameters for drying, but instead gradually adjusts the current temperature and humidity according to the moisture content range of the current moisture content. When the moisture content is high, the corresponding target temperature and humidity can also be set relatively high, so as to achieve the purpose of gradually reducing the moisture content and avoid the moisture content dropping too fast in a short period of time, resulting in local over-drying.

[0064] In one embodiment, the method further comprises:

[0065] Dividing the cross-sectional image into a plurality of judgment areas, determining the regional moisture content of each judgment area based on the sludge position distribution ratio in the judgment area, at least one side of the judgment area is the side of the cross-sectional image, and a vertex of the judgment area is the center point of the cross-sectional image;

[0066] When there is a target judgment area whose regional moisture content is not higher than the target moisture content, and the average moisture content of each judgment area is not higher than the preset moisture content, a discharge control instruction is generated and a first reminder message is sent to a preset terminal, and the preset moisture content is higher than the target moisture content.

[0067] In the embodiment of the present specification, because the water content in actual conditions cannot be completely uniform, in order to timely discover the situation where the local sludge is too dry, the cloud server will not only judge the current water content of the sludge as a whole, but also divide the cross-sectional image into different judgment areas, and determine the regional water content according to the sludge position distribution ratio of each judgment area. If the water content of a certain area has reached the target water content, and the average water content of all areas has not reached the target water content, the cloud server will make a corresponding judgment. Specifically, the cloud server will also preset a preset water content, which is higher than the target water content. The preset water content can be regarded as the maximum water content that the staff can accept. If the average water content is not higher than the preset water content, it is considered that although the drying has not reached the most ideal effect, since the local sludge has reached the target water content, continuing to dry is prone to over-drying. At this time, the discharge control instruction will be directly generated to control the discharge of the disc dryer. At the same time, the cloud server will also generate a first reminder message and send it to the preset terminal used by the staff to inform the staff of this situation. If the staff believes that there is a problem with such treatment based on the actual situation, they can actively control and intervene.

[0068] In one embodiment, the method further comprises:

[0069] When there is a target judgment area whose regional moisture content is not higher than the target moisture content, and the average moisture content of each judgment area is higher than the preset moisture content, the current wind speed of the airflow delivered by the vent is increased, and a second reminder message is sent to the preset terminal.

[0070] In the embodiment of this specification, if the regional moisture content of some areas meets the target moisture content, but the average moisture content has not reached the preset moisture content, the cloud server will consider increasing the current wind speed first to speed up the decline of the overall moisture content, and will also send a second reminder message to the preset terminal of the staff to inform the staff of this situation. Although such treatment measures may easily lead to over-drying of the sludge in the target judgment area, since the moisture content in other areas is still relatively high, direct discharge cannot be processed in the next process, so at this time, priority will be given to ensuring that the overall moisture content reaches a suitable level. In addition, if the staff judges that the current production task is not urgent according to the production plan, it can accept the discharge first, remove the qualified dried sludge part, and then re-dry the remaining part. It can also actively control the intervention of the cloud server to increase the current wind speed control process.

[0071] The following will be combined with the attached Figure 2 , the sludge drying control device provided in the embodiment of the present application is introduced in detail. It should be noted that the attached Figure 2 The sludge drying control device shown is used to implement the present application Figure 1 For the convenience of explanation, only the part related to the embodiment of the present application is shown. For the specific technical details not disclosed, please refer to the present application. Figure 1 The embodiment shown.

[0072] See also Figure 2 , Figure 2 Schematic diagram of the structure of a sludge drying control device provided in the embodiment of the present application. Figure 2 As shown, the device comprises:

[0073] A determination module 201 is used to determine a speed range of the disc dryer based on the sludge feed amount per unit time, adjust the speed of the disc dryer based on the speed range, determine a first speed, and control the rotation of the disc dryer based on the first speed, wherein the first speed is a speed at which the sludge just performs a circular motion;

[0074] The adjustment module 202 is used to adjust the current speed of the disc dryer to a second speed within a second time period at intervals of a first time period, and to acquire a cross-sectional image of the disc dryer after the current speed is adjusted to the second speed for a third time period, wherein the second speed is less than the first speed, and the third time period is less than the second time period;

[0075] The control module 203 is used to determine the current water content of the sludge based on the sludge position distribution ratio of the cross-sectional image, and generate a discharge control instruction when the current water content is less than the target water content.

[0076] In one possible implementation, the determination module 201 is specifically configured to:

[0077] Acquire sludge drying plan information, determine the sludge delivery volume per unit time based on the sludge drying plan information, and adjust the valve opening of the feed port based on the sludge delivery volume so that the sludge volume that can pass through the feed port per unit time is not greater than the sludge delivery volume.

[0078] In one possible implementation, the determination module 201 is further configured to:

[0079] Acquire parameter information of the disc dryer, and construct a digital twin model corresponding to the disc dryer based on the parameter information;

[0080] In the digital twin model, the rotational speed of the disc dryer is adjusted based on the rotational speed range to determine a first rotational speed.

[0081] In one possible implementation, the control module 203 is specifically used for:

[0082] Determining a first moisture content of the sludge based on the sludge position distribution ratio of the cross-sectional image, and determining a second moisture content of the sludge based on measurement data of the microwave moisture meter;

[0083] The first moisture content and the second moisture content are weightedly calculated to obtain the current moisture content of the sludge.

[0084] In one possible implementation, the control module 203 is further configured to:

[0085] Determine the moisture content interval corresponding to the current moisture content, and determine the target temperature and target humidity corresponding to the moisture content interval, and adjust the current temperature, current humidity, drying heat source working fluid flow and thermal state parameters of the vent conveying air flow based on the target temperature and target humidity.

[0086] In one embodiment, the device further comprises:

[0087] A division module, used for dividing the cross-sectional image into a plurality of judgment areas, and determining the regional moisture content of each judgment area based on the sludge position distribution ratio in the judgment area, wherein at least one side of the judgment area is the side of the cross-sectional image, and a vertex of the judgment area is the center point of the cross-sectional image;

[0088] The first judgment module is used to generate a discharge control instruction and send a first reminder message to a preset terminal when the moisture content of a target judgment area is not higher than the target moisture content and the average moisture content of each judgment area is not higher than the preset moisture content, and the preset moisture content is higher than the target moisture content.

[0089] In one embodiment, the device further comprises:

[0090] The second judgment module is used to increase the current wind speed of the air flow delivered by the ventilation port and send a second reminder message to the preset terminal when the moisture content of the target judgment area is not higher than the target moisture content and the average moisture content of each judgment area is higher than the preset moisture content.

[0091] Those skilled in the art can clearly understand that the technical solutions of the embodiments of the present application can be implemented with the help of software and / or hardware. The "unit" and "module" in this specification refer to software and / or hardware that can independently complete or cooperate with other components to complete specific functions, where the hardware can be, for example, a field programmable gate array (FPGA), an integrated circuit (IC), etc.

[0092] Each processing unit and / or module of the embodiments of the present application may be implemented by an analog circuit that implements the functions described in the embodiments of the present application, or may be implemented by software that executes the functions described in the embodiments of the present application.

[0093] See also Figure 3 , which shows a schematic diagram of the structure of an electronic device involved in an embodiment of the present application, the electronic device can be used to implement Figure 1 The method in the embodiment shown. Figure 3 As shown, the electronic device 300 may include: at least one processor 301 , at least one network interface 304 , a user interface 303 , a memory 305 , and at least one communication bus 302 .

[0094] The communication bus 302 is used to realize the connection and communication between these components.

[0095] The user interface 303 may include a display screen (Display) and a camera (Camera). Optionally, the user interface 303 may also include a standard wired interface and a wireless interface.

[0096] The network interface 304 may optionally include a standard wired interface or a wireless interface (such as a WI-FI interface).

[0097] Among them, the processor 301 may include one or more processing cores. The processor 301 uses various interfaces and lines to connect various parts of the entire electronic device 300, and executes various functions and processes data of the electronic device 300 by running or executing instructions, programs, code sets or instruction sets stored in the memory 305, and calling data stored in the memory 305. Optionally, the processor 301 can be implemented in at least one hardware form of digital signal processing (Digital Signal Processing, DSP), field programmable gate array (Field-Programmable Gate Array, FPGA), and programmable logic array (Programmable Logic Array, PLA). The processor 301 can integrate one or a combination of a central processing unit (Central Processing Unit, CPU), a graphics central processing unit (Graphics Processing Unit, GPU) and a modem. Among them, the CPU mainly processes the operating system, user interface and application programs; the GPU is responsible for rendering and drawing the content to be displayed on the display screen; the modem is used to process wireless communications. It can be understood that the above-mentioned modem may not be integrated into the processor 301, and it can be implemented separately through a chip.

[0098] Among them, the memory 305 may include a random access memory (Random Access Memory, RAM) and may also include a read-only memory (Read-Only Memory). Optionally, the memory 305 includes a non-transitory computer-readable storage medium. The memory 305 can be used to store instructions, programs, codes, code sets or instruction sets. The memory 305 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playback function, an image playback function, etc.), instructions for implementing the above-mentioned various method embodiments, etc.; the data storage area may store data involved in the above-mentioned various method embodiments, etc. The memory 305 may optionally be at least one storage device located away from the aforementioned processor 301. As Figure 3 As shown, the memory 305 as a computer storage medium may include an operating system, a network communication module, a user interface module, and program instructions.

[0099] exist Figure 3 In the electronic device 300 shown, the user interface 303 is mainly used to provide an input interface for the user and obtain the data input by the user; and the processor 301 can be used to call the sludge drying control application stored in the memory 305 and specifically perform the following operations:

[0100] Determine a rotation speed range of the disc dryer based on the sludge feed amount per unit time, adjust the rotation speed of the disc dryer based on the rotation speed range, determine a first rotation speed, and control the rotation of the disc dryer based on the first rotation speed, wherein the first rotation speed is a rotation speed at which the sludge just performs a circular motion;

[0101] At intervals of a first time length, the current rotation speed of the disc dryer is adjusted to a second rotation speed within a second time length, and a cross-sectional image of the disc dryer is acquired after the current rotation speed is adjusted to the second rotation speed for a third time length, wherein the second rotation speed is less than the first rotation speed, and the third time length is less than the second time length;

[0102] The current water content of the sludge is determined based on the sludge position distribution ratio of the cross-sectional image, and a discharge control instruction is generated after the current water content is less than the target water content.

[0103] The present application also provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the steps of the above method are implemented. The computer-readable storage medium may include, but is not limited to, any type of disk, including a floppy disk, an optical disk, a DVD, a CD-ROM, a micro drive, and a magneto-optical disk, a ROM, a RAM, an EPROM, an EEPROM, a DRAM, a VRAM, a flash memory device, a magnetic card or an optical card, a nanosystem (including a molecular memory IC), or any type of medium or device suitable for storing instructions and / or data.

[0104] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0105] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0106] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some service interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0107] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0108] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0109] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a memory, including a number of instructions to enable a computer device (which can be a personal computer, server or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned memory includes: U disk, read-only memory (ROM), random access memory (RAM), mobile hard disk, disk or optical disk and other media that can store program codes.

[0110] A person skilled in the art may understand that all or part of the steps in the various methods of the above embodiments may be completed by entering a program to instruct related hardware, and the program may be stored in a computer-readable memory, which may include a flash drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0111] The above is only an exemplary embodiment of the present disclosure, and the scope of the present disclosure cannot be limited thereto. That is, any equivalent changes and modifications made according to the teachings of the present disclosure are still within the scope of the present disclosure. After considering the specification and practicing the disclosure here, those skilled in the art will easily think of the implementation scheme of the present disclosure. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary technical means in the technical field not recorded in the present disclosure. The description and examples are regarded as exemplary only, and the scope and spirit of the present disclosure are defined by the claims.

Claims

1. A sludge drying control method, characterized in that: The method comprises: Determine a rotation speed range of the disc dryer based on the sludge feed amount per unit time, adjust the rotation speed of the disc dryer based on the rotation speed range, determine a first rotation speed, and control the rotation of the disc dryer based on the first rotation speed, wherein the first rotation speed is a rotation speed at which the sludge just performs a circular motion; At intervals of a first time length, the current rotation speed of the disc dryer is adjusted to a second rotation speed within a second time length, and a cross-sectional image of the disc dryer is acquired after the current rotation speed is adjusted to the second rotation speed for a third time length, wherein the second rotation speed is less than the first rotation speed, and the third time length is less than the second time length; The cross-sectional image is an image corresponding to the plane showing the circular motion of the sludge. The position distribution of the sludge is determined by identifying the sludge in the cross-sectional image, and the sludge water content is determined according to the sludge proportion distributed at each position. The closer the cross-sectional image is to the middle position, the higher the sludge proportion is, and the higher the sludge water content is. The closer the cross-sectional image is to the inner wall position, the higher the sludge proportion is, and the lower the sludge water content is. The process of determining the sludge water content by the sludge position distribution ratio is that the staff sets different sludge water contents for different sludge proportions at each position in advance according to previous tests and experience, and constructs a water content mapping database. After determining the sludge position distribution ratio by image recognition of the cross-sectional image, the water content mapping database is queried to obtain the sludge water content. Determining a first moisture content of the sludge based on the sludge position distribution ratio of the cross-sectional image, and determining a second moisture content of the sludge based on measurement data of the microwave moisture meter; The first moisture content and the second moisture content are weightedly calculated to obtain the current moisture content of the sludge, and a discharge control instruction is generated after the current moisture content is less than the target moisture content.

2. The method according to claim 1, characterized in that Before determining the rotation speed range of the disc dryer based on the sludge feed amount per unit time, the method further includes: Acquire sludge drying plan information, determine the sludge delivery volume per unit time based on the sludge drying plan information, and adjust the valve opening of the feed port based on the sludge delivery volume so that the sludge volume that can pass through the feed port per unit time is not greater than the sludge delivery volume.

3. The method according to claim 1, characterized in that After determining the current water content of the sludge based on the sludge position distribution ratio of the cross-sectional image, the method further includes: Determine the moisture content interval corresponding to the current moisture content, and determine the target temperature and target humidity corresponding to the moisture content interval, and adjust the current temperature, current humidity, drying heat source working fluid flow and thermal state parameters of the vent conveying air flow based on the target temperature and target humidity.

4. The method according to claim 1, characterized in that The method further comprises: Dividing the cross-sectional image into a plurality of judgment areas, determining the regional moisture content of each judgment area based on the sludge position distribution ratio in the judgment area, at least one side of the judgment area is the side of the cross-sectional image, and a vertex of the judgment area is the center point of the cross-sectional image; When there is a target judgment area whose regional moisture content is not higher than the target moisture content, and the average moisture content of each judgment area is not higher than the preset moisture content, a discharge control instruction is generated and a first reminder message is sent to a preset terminal, and the preset moisture content is higher than the target moisture content.

5. The method according to claim 4, characterized in that The method further comprises: When there is a target judgment area whose regional moisture content is not higher than the target moisture content, and the average moisture content of each judgment area is higher than the preset moisture content, the current wind speed of the airflow delivered by the vent is increased, and a second reminder message is sent to the preset terminal.

6. The method according to claim 1, characterized in that The step of adjusting the rotation speed of the disc drying machine based on the rotation speed range to determine the first rotation speed includes: Acquire parameter information of the disc dryer, and construct a digital twin model corresponding to the disc dryer based on the parameter information; In the digital twin model, the rotational speed of the disc dryer is adjusted based on the rotational speed range to determine a first rotational speed.

7. A sludge drying control device, characterized in that: The method according to any one of claims 1 to 6, wherein the device comprises: A determination module, configured to determine a speed range of the disc dryer based on the sludge feed amount per unit time, adjust the speed of the disc dryer based on the speed range, determine a first speed, and control the rotation of the disc dryer based on the first speed, wherein the first speed is a speed at which the sludge just performs a circular motion; An adjustment module is used to adjust the current speed of the disc dryer to a second speed within a second time period every first time period, and collect a cross-sectional image of the disc dryer after the current speed is adjusted to the second speed for a third time period, wherein the second speed is less than the first speed, and the third time period is less than the second time period; the cross-sectional image is an image corresponding to a plane showing the circular motion of the sludge, and the position distribution of the sludge is determined by identifying the sludge in the cross-sectional image, and the sludge water content is determined according to the sludge proportion distributed at each position; the closer the cross-sectional image is to the middle position, the higher the sludge proportion is, the higher the sludge water content is, and the closer the cross-sectional image is to the inner wall position, the higher the sludge proportion is, the lower the sludge water content is; the process of determining the sludge water content by the sludge position distribution ratio is that the staff sets different sludge water contents corresponding to different sludge proportions at each position in advance according to previous tests and experience, and constructs a water content mapping database; after determining the sludge position distribution ratio by image recognition of the cross-sectional image, the water content mapping database is queried to obtain the sludge water content; A control module is used to determine a first moisture content of the sludge based on the sludge position distribution ratio of the cross-sectional image, and determine a second moisture content of the sludge based on the measurement data of the microwave moisture meter; weightedly calculate the first moisture content and the second moisture content to obtain the current moisture content of the sludge, and generate a discharge control instruction after the current moisture content is less than the target moisture content.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, wherein the computer-readable storage medium has instructions stored therein, and when the instructions are executed on a computer or a processor, the computer or the processor executes the steps of the method according to any one of claims 1 to 6.

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