Sludge full-drying treatment system and treatment method

Abstract

The invention relates to the technical field of sludge treatment, in particular to a sludge full-drying treatment system and method.The method comprises the steps that the full-drying tendency type of to-be-treated sludge is determined based on the detected thickness of the to-be-treated sludge placed on the horizontal plane and the viscosity value of the sludge; determining a full-drying treatment method and key monitoring parameters of a full-drying treatment process based on the full-drying tendency type of the sludge to be treated; the full-drying treatment method comprises a segmented stirring full-drying method and a ventilation-assisted full-drying method; determining parameter adjustment of the full drying treatment process based on key monitoring parameters monitored in real time in the full drying treatment process; and determining whether to adjust the parameters of the sludge full-drying treatment process or not based on the caking area of the sludge obtained by the corresponding full-drying treatment method and the proportion of the sludge which is not completely dried. According to the invention, the control precision of the sludge full-drying treatment process is improved, so that the sludge full-drying treatment efficiency and treatment effect are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sludge treatment, and in particular to a sludge full drying treatment system and a treatment method. Background Art

[0002] With the acceleration of industrialization and urbanization, the amount of sewage treatment is increasing. As a by-product of sewage treatment, the output of sludge is also growing continuously. Natural drying is a low-cost sludge treatment method, but it is greatly restricted by weather conditions, has a slow drying speed, occupies a large area, and is prone to produce odor and breed mosquitoes, affecting the surrounding environment. In order to solve the limitations of traditional sludge treatment methods, sludge full drying treatment technology has emerged. Full drying treatment can reduce the moisture in the sludge to a lower level, thereby reducing the volume and weight of the sludge, facilitating subsequent treatment and utilization. At the same time, full drying treatment can also kill pathogens in the sludge and reduce the pollution risk of the sludge. The existing sludge full drying treatment technology lacks effective monitoring and adjustment means, and it is difficult to understand the status of the drying process in real time and adjust parameters according to actual conditions. This makes the drying process prone to problems and affects the drying effect and efficiency.

[0003] Chinese patent application publication number: CN102887619A discloses a method for treating water-containing sludge, comprising the following steps: feeding the sludge into a sludge dryer for heating and drying; feeding the semi-dry sludge into a sludge incinerator; the air enters the sludge incinerator after passing through an ignition device; the high-temperature flue gas generated by the sludge incineration passes through a waste heat recovery device, and then is discharged into the air through a flue gas purification and dust removal system; the residue generated by the sludge incineration is fed into an ash storage bin; the semi-drying incineration of the sludge adopts the method that the sludge directly passes through the sludge dryer to reach a low dryness and semi-dryness, and then enters the incinerator for incineration treatment, and the drying process does not produce fully dry sludge, and does not require backmixing, and has the following advantages: mature and reliable sludge drying and incineration equipment is used, and the system operation reliability is high; the semi-drying system does not require backmixing of dry sludge, and the dust volume, oxygen content and temperature are low during operation, the system safety is high, and no inert gas protection is required; the entire system does not generate dust or odor during operation, and the on-site environment is good.

[0004] It can be seen that the existing technology has the problem that the sludge analysis is not accurate enough, resulting in low accuracy in selecting the sludge drying method, and the control precision of the sludge drying treatment process is low, resulting in low sludge drying efficiency and poor sludge drying effect. Summary of the invention

[0005] To this end, the present invention provides a sludge full drying treatment method to overcome the problems in the prior art of insufficiently accurate sludge analysis resulting in low accuracy in selecting the sludge full drying method and low precision in controlling the sludge full drying treatment process resulting in low sludge drying efficiency and poor sludge drying effect.

[0006] To achieve the above object, the present invention provides a sludge full drying treatment method, comprising: Detecting the thickness and viscosity of the sludge to be treated placed on a horizontal plane, and determining the full drying tendency type of the sludge to be treated based on the uniformity of the thickness of the sludge to be treated and the viscosity of the sludge to be treated, wherein the full drying tendency type includes a strong sludge full drying type and a weak sludge full drying type; Determining a full drying treatment method and key monitoring parameters of the full drying treatment process based on the full drying tendency type of the sludge to be treated; The full drying treatment method includes a staged stirring full drying method and a ventilation assisted full drying method. The key monitoring parameters of the full drying treatment process include the change in the uniformity of sludge particles and the change in the moisture content of sludge. Based on the comparison results of the key monitoring parameters monitored in real time during the full drying process with the preset key monitoring parameters, the adjustment of the full drying process parameters is determined, or the sludge is continued to be fully dried with the original full drying process parameters, wherein the full drying process parameters include wind speed, stirring frequency and full drying temperature; Based on the sludge agglomeration area and the proportion of incompletely dried sludge obtained under the corresponding full drying treatment method, it is determined whether to adjust the sludge full drying treatment process parameters, wherein the sludge full drying treatment process parameters include a preset uniformity, a preset viscosity value, a preset range of change in sludge particle uniformity, and a preset range of change in sludge moisture content.

[0007] Furthermore, the method of determining the type of total drying tendency of the sludge to be treated based on the uniformity of the thickness of the sludge to be treated and the viscosity value of the sludge to be treated includes: If the uniformity of the thickness of the sludge to be treated is less than the preset uniformity and the viscosity of the sludge to be treated is less than the preset viscosity, it is determined that the drying tendency type of the sludge to be treated is a weak sludge full drying type; If the uniformity of the thickness of the sludge to be treated is greater than or equal to a preset uniformity or the viscosity of the sludge to be treated is greater than or equal to a preset viscosity, it is determined that the drying tendency type of the sludge to be treated is a strong sludge full drying type.

[0008] Furthermore, the uniformity of the thickness of the sludge to be treated is determined according to the historical average value of the uniformity of the thickness of the sludge during the sludge full drying treatment, and the preset viscosity value is determined according to the historical average value of the viscosity of the sludge during the sludge full drying treatment.

[0009] Furthermore, the method for determining the full drying treatment method and the key monitoring parameters of the full drying treatment process based on the full drying tendency type of the sludge to be treated include: If the full drying tendency type of the sludge to be treated is a strong sludge full drying type, the full drying treatment method is determined to be a staged stirring full drying method, and the key monitoring parameter of the full drying treatment process is determined to be the change in the uniformity of the sludge particles; If the full drying tendency type of the sludge to be treated is a weak sludge full drying type, the full drying treatment method is determined to be a ventilation-assisted full drying method, and the key monitoring parameter of the full drying treatment process is determined to be the change in sludge moisture content.

[0010] Furthermore, the adjustment of parameters of the full drying process based on the comparison result of the key monitoring parameters monitored in real time during the full drying process with the preset key monitoring parameters includes: If the variation of the uniformity of the sludge particles is not within the preset variation range of the uniformity of the sludge particles, the stirring frequency and the full drying temperature are adjusted; If the change in sludge moisture content is not within the preset range of sludge moisture content change, determine to adjust the wind speed and full drying temperature; If the change in the uniformity of the sludge particles is within the preset range of the uniformity of the sludge particles or the change in the moisture content of the sludge is within the preset range of the moisture content of the sludge, it is determined to continue to fully dry the sludge using the original full drying process parameters.

[0011] Furthermore, the preset range of change in sludge particle uniformity is determined based on the historical average value of change in sludge particle uniformity during the full drying treatment of sludge with the same weight and the same full drying tendency type, and the preset range of change in sludge moisture content is determined based on the historical average value of change in sludge moisture content during the full drying treatment of sludge with the same weight and the same full drying tendency type.

[0012] Furthermore, the determining whether to adjust the parameters of the sludge full drying treatment process based on the sludge agglomeration area and the proportion of incompletely dried sludge obtained under the corresponding full drying treatment method includes: If the agglomeration area of ​​the sludge obtained under the corresponding full drying treatment method is greater than or equal to the preset agglomeration area or the proportion of incompletely dried sludge is greater than or equal to the preset proportion, it is determined that the parameters of the sludge full drying treatment process need to be adjusted.

[0013] Furthermore, the preset agglomeration area is determined according to the total area of ​​the fully dried sludge.

[0014] Furthermore, the adjustment amount of the preset uniformity is positively correlated with the agglomeration area of ​​the sludge obtained under the corresponding full drying treatment method, and the adjustment amount of the preset viscosity value is negatively correlated with the proportion of the incompletely dried sludge.

[0015] Furthermore, a sludge full drying treatment system using the sludge full drying treatment method comprises: A detection module, comprising a sludge thickness detection unit for detecting the thickness of the sludge to be treated placed on a horizontal surface and a sludge viscosity detection unit for detecting the viscosity value of the sludge to be treated; A data processing module, which is connected to the detection module, including a data analysis unit for comparing the uniformity of the thickness of the sludge to be treated with a preset uniformity and comparing the viscosity value of the sludge with a preset viscosity value to determine the type of full drying tendency of the sludge to be treated, and also including a parameter determination unit for determining the full drying treatment method and key monitoring parameters of the full drying treatment process according to the type of full drying tendency; A full drying treatment module, which is connected to the data processing module, includes a full drying treatment unit for full drying of sludge, a key parameter monitoring unit for real-time monitoring of key monitoring parameters in the full drying treatment process, and a parameter adjustment unit for determining whether to adjust the parameters of the full drying treatment process according to a comparison result between the key monitoring parameters of the key parameter monitoring unit and preset key monitoring parameters; An adjustment module is connected to the full drying treatment module and is used to determine whether to adjust the parameters of the sludge full drying treatment process according to the sludge agglomeration area and the proportion of incompletely dried sludge obtained under the corresponding full drying treatment method.

[0016] Compared with the prior art, the beneficial effect of the present invention lies in that the present invention customizes treatment methods for different types of sludge, determines the drying tendency type by analyzing the uniformity of sludge thickness and viscosity value, can accurately distinguish between strong sludge drying type and weak sludge drying type, can select the most suitable complete drying treatment method for different types of sludge, improve the targeted nature of drying treatment, and accurately determine the drying tendency type to avoid unnecessary excessive treatment of sludge. If the weak sludge drying type is misjudged as the strong sludge drying type, an overly strong treatment method may be used, resulting in energy waste and increased equipment loss. Conversely, if the strong sludge drying type is misjudged as the weak sludge drying type, it may result in incomplete drying, requiring secondary treatment and increasing costs. The above method improves the accuracy of control over the sludge drying process, thereby improving the sludge drying efficiency and sludge drying effect.

[0017] Furthermore, the present invention adopts a staged stirring full drying method for the strong sludge drying type, which can effectively deal with the problems such as agglomeration that may occur in this type of sludge. By reasonably controlling the stirring frequency and stage, the sludge particles can be fully mixed, the water evaporation and heat transfer can be accelerated, and the drying speed can be improved. For the weak sludge drying type, a ventilation-assisted full drying method is adopted, and ventilation is used to promote water dissipation. This method is more suitable for sludge with weak drying tendency, avoids excessive treatment, and achieves drying in a more energy-saving manner. The key monitoring parameter of the strong sludge full drying type is determined to be the change in the uniformity of the sludge particles, which can timely discover and solve the agglomeration problem that may occur during the drying process. Once an abnormal change in the uniformity of the particles is monitored, the stirring frequency and temperature and other parameters can be adjusted to ensure the smooth progress of the drying process and improve the drying efficiency. For the weak sludge full drying type, the change in the sludge moisture content is used as the key monitoring parameter, which can accurately grasp the drying progress, adjust the ventilation intensity and time in time, and make the drying process more efficient.

[0018] Furthermore, the present invention can timely understand the status of the drying process by real-time monitoring of key monitoring parameters and comparing them with preset parameters. When the parameters exceed the preset range, adjustments can be made quickly to ensure that the drying process is always in the best state. For strong sludge full drying type, when the change in the uniformity of sludge particles is not within the preset range, adjusting the stirring frequency and full drying temperature can effectively prevent problems such as agglomeration and ensure the uniformity of the drying effect. For the weak sludge drying type, when the sludge moisture content changes abnormally, adjusting the wind speed and the full drying temperature can timely control the drying speed to avoid insufficient or excessive drying. Accurate parameter adjustment can make the drying process more stable, thereby improving the sludge drying quality. For example, for the strong sludge drying type, by adjusting the stirring frequency and temperature, the sludge particles can be fully mixed and heated evenly to avoid local overheating or agglomeration, thereby ensuring the stability of the sludge quality after drying. For the weak sludge full drying type, reasonable adjustment of the wind speed and temperature can make the moisture evenly dispersed. The above method improves the accuracy of the control of the sludge full drying process, thereby improving the sludge drying efficiency and sludge drying effect.

[0019] Furthermore, in the present invention, when the agglomeration area of ​​the sludge is greater than or equal to the preset agglomeration area, it indicates that a situation that is not conducive to uniform drying may occur during the drying process. By adjusting the preset uniformity with the third adjustment coefficient, the subsequent drying treatment can pay more attention to the uniformity of the sludge, for example, increasing the stirring frequency, adjusting the ventilation method, etc., to reduce the agglomeration phenomenon and improve the drying effect. When the proportion of incompletely dried sludge is greater than or equal to the preset proportion, it indicates that the degree of drying is insufficient. By adjusting the preset viscosity value with the fourth adjustment coefficient, the drying process can be prompted to more effectively reduce the viscosity of the sludge and improve the drying effect. High water evaporation rate ensures that the sludge can be fully dried. When the agglomeration area is large and the proportion of incompletely dried sludge is high, the preset sludge particle uniformity variation range and the preset sludge moisture content variation range can be adjusted to make the key monitoring parameters more in line with the actual situation, thereby more accurately guiding the drying process. For example, expanding the sludge particle uniformity variation range can allow greater particle non-uniformity to a certain extent, so as to make targeted adjustments in subsequent treatments; adjusting the sludge moisture content variation range can make the drying process more flexibly adapt to different moisture content conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The following is a flowchart of the sludge full drying treatment method according to an embodiment of the present invention; Figure 2 A flowchart of a method for fully drying sludge for treating a sludge according to an embodiment of the present invention for determining whether to adjust parameters of the fully drying treatment process; Figure 3 It is a structural schematic diagram of a sludge full drying treatment system applied to a sludge full drying treatment method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0021] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0023] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0024] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] See also Figure 1-Figure 2 As shown, Figure 1 The following is a flowchart of the sludge full drying treatment method according to an embodiment of the present invention; Figure 2 The present invention is a flowchart of a sludge full drying treatment method for determining whether to adjust the full drying treatment process parameters.

[0026] The sludge full drying treatment method according to the embodiment of the present invention comprises: Step S1, detecting the thickness and viscosity of the sludge to be treated placed on a horizontal plane, and determining the full drying tendency type of the sludge to be treated based on the uniformity of the thickness of the sludge to be treated and the viscosity of the sludge to be treated, wherein the full drying tendency type includes a strong sludge full drying type and a weak sludge full drying type; Step S2, determining a full drying treatment method and key monitoring parameters of the full drying treatment process based on the full drying tendency type of the sludge to be treated; Step S3, the full drying treatment method includes a staged stirring full drying method and a ventilation assisted full drying method, and the key monitoring parameters of the full drying treatment process include the change in the uniformity of sludge particles and the change in the moisture content of sludge; Step S4, based on the comparison result of the key monitoring parameters monitored in real time during the full drying process with the preset key monitoring parameters, determine whether to adjust the full drying process parameters, or continue to fully dry the sludge with the original full drying process parameters, wherein the full drying process parameters include wind speed, stirring frequency and full drying temperature; Step S5, based on the sludge agglomeration area and the proportion of incompletely dried sludge obtained under the corresponding full drying treatment method, determine whether to adjust the sludge full drying treatment process parameters, wherein the sludge full drying treatment process parameters include a preset uniformity, a preset viscosity value, a preset sludge particle uniformity variation range, and a preset sludge moisture content variation range.

[0027] Specifically, in step S1, when determining the type of the total drying tendency of the sludge to be treated, the type of the total drying tendency of the sludge to be treated is determined according to the uniformity of the thickness of the sludge to be treated and the viscosity value of the sludge to be treated; When the uniformity of the thickness of the sludge to be treated is less than the preset uniformity and the viscosity of the sludge to be treated is less than the preset viscosity, the drying tendency type of the sludge to be treated is determined to be a weak sludge full drying type; When the uniformity of the thickness of the sludge to be treated is greater than or equal to the preset uniformity or the viscosity of the sludge to be treated is greater than or equal to the preset viscosity, the drying tendency type of the sludge to be treated is determined to be a strong sludge full drying type; Among them, the uniformity of the thickness of the sludge to be treated is the historical average value of the uniformity of the sludge thickness during the sludge full drying treatment process, and the preset viscosity value is the historical average value of the viscosity value of the sludge during the sludge full drying treatment process, but the above values ​​are not limited to this, and technical personnel in this field can also adjust the value according to actual needs.

[0028] The uniformity of the thickness of the sludge to be treated in the embodiment of the present invention can be obtained according to the following method: select multiple measuring points on the horizontal plane where the sludge to be treated is located, and select them in a regular grid distribution manner to ensure that the measuring points can cover the entire sludge area. For example, for a sludge yard with a larger area, a measuring point can be set at a certain distance, and the certain distance can be determined according to the length or width of the sludge. For example, the certain distance can be one-tenth of the length of the sludge; use suitable measuring tools, such as ultrasonic thickness gauges, laser rangefinders, etc., to measure the sludge thickness at each measuring point. These tools can accurately measure the distance from the sludge surface to the reference plane, thereby obtaining the thickness value of the sludge; calculate the average and standard deviation of the sludge thickness of all measuring points, the average reflects the overall thickness level of the sludge, and the standard deviation indicates the discrete degree of the sludge thickness, that is, the uniformity. The smaller the standard deviation, the more uniform the sludge thickness.

[0029] The viscosity value of the sludge to be treated in the embodiment of the present invention can be obtained by selecting the measuring points according to the measuring point selection method in the method for obtaining the uniformity of the thickness of the sludge to be treated, and using a viscometer to measure the viscosity value of each measuring point, and calculating the average value of the viscosity values ​​of each measuring point is the viscosity value of the sludge to be treated.

[0030] The present invention customizes treatment methods for different types of sludge. By analyzing the uniformity of sludge thickness and viscosity value, the drying tendency type is determined, and the strong sludge drying type and the weak sludge drying type can be accurately distinguished. The most suitable complete drying treatment method can be selected for different types of sludge, thereby improving the pertinence of the drying treatment. Accurately determining the drying tendency type can avoid unnecessary excessive treatment of the sludge. If the weak sludge drying type is misjudged as the strong sludge drying type, an overly strong treatment method may be used, resulting in energy waste and increased equipment loss. Conversely, if the strong sludge drying type is misjudged as the weak sludge drying type, incomplete drying may result, requiring secondary treatment, increasing costs. The above method improves the accuracy of control over the sludge drying process, thereby improving the sludge drying efficiency and sludge drying effect.

[0031] Specifically, in step S2, when determining the full drying treatment method and the key monitoring parameters of the full drying treatment process, the full drying treatment method and the key monitoring parameters of the full drying treatment process are determined according to the full drying tendency type of the sludge to be treated; When the full drying tendency type of the sludge to be treated is a strong sludge full drying type, the full drying treatment method is determined to be a staged stirring full drying method, and the key monitoring parameter of the full drying treatment process is determined to be the change in the uniformity of the sludge particles; When the full drying tendency type of the sludge to be treated is a weak sludge full drying type, the full drying treatment method is determined to be a ventilation-assisted full drying method, and the key monitoring parameter of the full drying treatment process is determined to be the change in sludge moisture content.

[0032] The staged stirring full drying method described in the embodiment of the present invention includes: in the initial stage, using low stirring frequency and low temperature to preliminarily heat and stir the sludge, so that the sludge is evenly heated and avoid local overheating. As the drying proceeds, the stirring frequency and temperature are gradually increased to accelerate the evaporation rate of water. In the final stage, the stirring frequency and temperature are reduced to gradually cool the sludge while continuing to stir to ensure the uniformity of the sludge; the ventilation-assisted full drying method promotes the evaporation of water in the sludge by strengthening ventilation, thereby achieving the purpose of drying, spreading the sludge to be treated in a well-ventilated site or equipment, and using natural wind or airflow provided by mechanical ventilation equipment to accelerate the dissipation of water in the sludge. During the drying process, the sludge needs to be turned over regularly to ensure uniform ventilation and avoid local water accumulation and uneven drying. At the same time, the ventilation parameters can be adjusted according to the changes in the moisture content of the sludge to improve the drying efficiency.

[0033] The present invention adopts a segmented stirring full drying method for the strong sludge drying type, which can effectively deal with the problems such as agglomeration that may occur in this type of sludge. By reasonably controlling the stirring frequency and stage, the sludge particles can be fully mixed, the water evaporation and heat transfer can be accelerated, and the drying speed can be improved. For the weak sludge drying type, a ventilation-assisted full drying method is adopted, and ventilation is used to promote water dissipation. This method is more suitable for sludge with a weak drying tendency, avoids excessive treatment, and achieves drying in a more energy-saving manner. The key monitoring parameter of the strong sludge full drying type is determined to be the change in the uniformity of the sludge particles, which can timely discover and solve the agglomeration problem that may occur in the drying process. Once the abnormal change in the uniformity of the particles is monitored, the stirring frequency and temperature and other parameters can be adjusted to ensure the smooth progress of the drying process and improve the drying efficiency. For the weak sludge full drying type, the change in the sludge moisture content is used as the key monitoring parameter, the drying progress can be accurately grasped, the ventilation intensity and time can be adjusted in time, and the drying process can be more efficient.

[0034] Specifically, in step S4, when it is determined to adjust the parameters of the full drying process, the adjustment of the parameters of the full drying process is determined according to the comparison results of the key monitoring parameters monitored in real time during the full drying process with the preset key monitoring parameters; When the variation of the uniformity of the sludge particles is not within the preset variation range of the uniformity of the sludge particles, determining to adjust the stirring frequency and the full drying temperature; When the change in sludge moisture content is not within the preset range of sludge moisture content change, the wind speed and the full drying temperature are adjusted; When the change in sludge particle uniformity is within a preset range of sludge particle uniformity change or the change in sludge moisture content is within a preset range of sludge moisture content change, it is determined to continue to fully dry the sludge with the original full drying process parameters.

[0035] In the embodiment of the present invention, when the change in the uniformity of the sludge particles is not within the preset range of the uniformity of the sludge particles, the adjustment of the stirring frequency and the full drying temperature is determined, including determining the adjustment of the stirring frequency and the full drying temperature with a first adjustment coefficient according to the comparison result that the change in the uniformity of the sludge particles is greater than or equal to the maximum value of the preset range of the uniformity of the sludge particles, or determining the adjustment of the stirring frequency and the full drying temperature with a second adjustment coefficient according to the comparison result that the change in the uniformity of the sludge particles is less than the minimum value of the preset range of the uniformity of the sludge particles. When the change in the sludge moisture content is not within the preset range of the sludge moisture content change , determining the adjustment of the wind speed and the full drying temperature includes determining to adjust the wind speed and the full drying temperature with a first adjustment coefficient based on a comparison result that the sludge moisture content change is greater than or equal to the maximum value of a preset sludge moisture content change range, or determining to adjust the wind speed and the full drying temperature with a second adjustment coefficient based on a comparison result that the sludge moisture content change is less than the minimum value of a preset sludge moisture content change range, the value range of the first adjustment coefficient is set to 0.85-0.96, and the value range of the second adjustment coefficient is set to 1.05-1.19, but the above values ​​are not limited thereto, and technical personnel in this field may also adjust the values ​​according to actual needs.

[0036] In the embodiment of the present invention, the minimum value of the preset range of change in uniformity of sludge particles is four-fifths of the historical average value of the change in uniformity of sludge particles in the same time period during the full drying treatment of sludge with the same weight and the same full drying tendency type, and the maximum value of the preset range of change in uniformity of sludge particles is six-fifths of the historical average value of the change in uniformity of sludge particles in the same time period during the full drying treatment of sludge with the same weight and the same full drying tendency type. The minimum value of the preset range of change in sludge moisture content is four-fifths of the historical average value of the change in sludge moisture content in the same time period during the full drying treatment of sludge with the same weight and the same full drying tendency type, and the maximum value of the preset range of change in sludge moisture content is six-fifths of the historical average value of the change in sludge moisture content in the same time period during the full drying treatment of sludge with the same weight and the same full drying tendency type, but the above values ​​are not limited to this, and those skilled in the art may also adjust the values ​​according to actual needs.

[0037] The present invention can timely understand the status of the drying process by real-time monitoring of key monitoring parameters and comparing them with preset parameters. When the parameters exceed the preset range, adjustments can be made quickly to ensure that the drying process is always in the best state. For strong sludge full drying type, when the change in the uniformity of sludge particles is not within the preset range, adjusting the stirring frequency and full drying temperature can effectively prevent problems such as agglomeration and ensure the uniformity of the drying effect. For the weak sludge drying type, when the sludge moisture content changes abnormally, adjusting the wind speed and the full drying temperature can timely control the drying speed to avoid insufficient or excessive drying. Accurate parameter adjustment can make the drying process more stable, thereby improving the sludge drying quality. For example, for the strong sludge drying type, by adjusting the stirring frequency and temperature, the sludge particles can be fully mixed and heated evenly to avoid local overheating or agglomeration, thereby ensuring the stability of the sludge quality after drying. For the weak sludge full drying type, reasonable adjustment of the wind speed and temperature can make the moisture evenly dispersed. The above method improves the accuracy of the control of the sludge full drying process, thereby improving the sludge drying efficiency and sludge drying effect.

[0038] Specifically, in step S5, when determining whether to adjust the parameters of the sludge full drying treatment process, it is determined whether to adjust the parameters of the sludge full drying treatment process according to the sludge agglomeration area and the proportion of incompletely dried sludge obtained under the corresponding full drying treatment method; When the agglomeration area of ​​the sludge obtained under the corresponding full drying treatment method is greater than or equal to the preset agglomeration area or the proportion of the incompletely dried sludge is greater than or equal to the preset proportion, it is determined that the parameters of the sludge full drying treatment process need to be adjusted; When the agglomeration area of ​​the sludge obtained under the corresponding full drying treatment method is smaller than the preset agglomeration area and the proportion of the incompletely dried sludge is smaller than the preset proportion, it is determined that there is no need to adjust the parameters of the sludge full drying treatment process; Among them, the preset agglomeration area is one percent of the total area of ​​the fully dried sludge, and the value range of the preset proportion is set to 0.7-1. The value of the preset proportion is preferably 0.83, but the above value is not limited to this. Technical personnel in this field can also adjust the value according to actual needs.

[0039] The proportion of the incompletely dried sludge in the embodiment of the present invention is the ratio of the weight of the incompletely dried sludge to the total mass of the sludge that has been fully dried.

[0040] Specifically, in step S5, when it is determined that the process parameters of the sludge full drying treatment need to be adjusted, the preset uniformity is adjusted by the third adjustment coefficient according to the comparison result that the sludge agglomeration area obtained under the corresponding full drying treatment method is greater than or equal to the preset agglomeration area, the preset viscosity value is adjusted by the fourth adjustment coefficient according to the comparison result that the proportion of incompletely dried sludge is greater than or equal to the preset proportion, and the preset sludge particle uniformity change range and the preset sludge moisture content change range are adjusted according to the comparison result that the sludge agglomeration area obtained under the corresponding full drying treatment method is greater than or equal to the preset agglomeration area and the proportion of incompletely dried sludge is greater than or equal to the preset proportion.

[0041] In the embodiment of the present invention, the value range of the third adjustment coefficient is set to 0.81-0.97, the value range of the fourth adjustment coefficient is set to 1.06-1.23, the adjustment amount of the preset uniformity is positively correlated with the agglomeration area of ​​the sludge obtained under the corresponding full drying treatment method, the adjustment amount of the preset viscosity value is negatively correlated with the proportion of the incompletely dried sludge, the preset sludge particle uniformity change range includes adjusting the maximum value of the preset sludge particle uniformity change range with the fourth adjustment coefficient and adjusting the minimum value of the preset sludge particle uniformity change range with the third adjustment coefficient, and the adjustment of the preset sludge moisture content change range includes adjusting the maximum value of the preset sludge moisture content change range with the fourth adjustment coefficient and adjusting the minimum value of the preset sludge moisture content change range with the third adjustment coefficient.

[0042] In the present invention, when the agglomeration area of ​​the sludge is greater than or equal to the preset agglomeration area, it indicates that a situation that is not conducive to uniform drying may occur during the drying process. By adjusting the preset uniformity with the third adjustment coefficient, the subsequent drying process can pay more attention to the uniformity of the sludge, for example, increasing the stirring frequency, adjusting the ventilation method, etc., to reduce the agglomeration phenomenon and improve the drying effect. When the proportion of incompletely dried sludge is greater than or equal to the preset proportion, it indicates that the degree of drying is insufficient. By adjusting the preset viscosity value with the fourth adjustment coefficient, the drying process can be more effectively reduced. The viscosity of the sludge is increased, and the moisture content is increased. Evaporation rate ensures that the sludge can be fully dried. When the agglomeration area is large and the proportion of incompletely dried sludge is high, the preset range of variation of sludge particle uniformity and the preset range of variation of sludge moisture content can be adjusted to make the key monitoring parameters more in line with the actual situation, thereby more accurately guiding the drying process. For example, expanding the range of variation of sludge particle uniformity can allow greater particle heterogeneity to a certain extent, so as to make targeted adjustments in subsequent treatments; adjusting the range of variation of sludge moisture content can make the drying process more flexibly adapt to different moisture content conditions.

[0043] See also Figure 3 As shown, Figure 3 It is a structural schematic diagram of a sludge full drying treatment system applied to a sludge full drying treatment method according to an embodiment of the present invention.

[0044] Specifically, a sludge full drying treatment system using the sludge full drying treatment method comprises: A detection module, comprising a sludge thickness detection unit for detecting the thickness of the sludge to be treated placed on a horizontal surface and a sludge viscosity detection unit for detecting the viscosity value of the sludge to be treated; A data processing module, which is connected to the detection module, including a data analysis unit for comparing the uniformity of the thickness of the sludge to be treated with a preset uniformity and comparing the viscosity value of the sludge with a preset viscosity value to determine the type of full drying tendency of the sludge to be treated, and also including a parameter determination unit for determining the full drying treatment method and key monitoring parameters of the full drying treatment process according to the type of full drying tendency; A full drying treatment module, which is connected to the data processing module, includes a full drying treatment unit for full drying of sludge, a key parameter monitoring unit for real-time monitoring of key monitoring parameters in the full drying treatment process, and a parameter adjustment unit for determining whether to adjust the parameters of the full drying treatment process according to a comparison result between the key monitoring parameters of the key parameter monitoring unit and preset key monitoring parameters; An adjustment module is connected to the full drying treatment module and is used to determine whether to adjust the parameters of the sludge full drying treatment process according to the sludge agglomeration area and the proportion of incompletely dried sludge obtained under the corresponding full drying treatment method.

[0045] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sludge full drying treatment method, characterized in that: include: Detecting the thickness and viscosity of the sludge to be treated placed on a horizontal plane, and determining the full drying tendency type of the sludge to be treated based on the uniformity of the thickness of the sludge to be treated and the viscosity of the sludge to be treated, wherein the full drying tendency type includes a strong sludge full drying type and a weak sludge full drying type; Determining a full drying treatment method and key monitoring parameters of the full drying treatment process based on the full drying tendency type of the sludge to be treated; The full drying treatment method includes a staged stirring full drying method and a ventilation assisted full drying method. The key monitoring parameters of the full drying treatment process include the change in the uniformity of sludge particles and the change in the moisture content of sludge. Based on the comparison results of the key monitoring parameters monitored in real time during the full drying process with the preset key monitoring parameters, the adjustment of the full drying process parameters is determined, or the sludge is continued to be fully dried with the original full drying process parameters, wherein the full drying process parameters include wind speed, stirring frequency and full drying temperature; Based on the sludge agglomeration area and the proportion of incompletely dried sludge obtained under the corresponding full drying treatment method, it is determined whether to adjust the sludge full drying treatment process parameters, wherein the sludge full drying treatment process parameters include a preset uniformity, a preset viscosity value, a preset range of change in sludge particle uniformity, and a preset range of change in sludge moisture content.

2. The sludge full drying treatment method according to claim 1, characterized in that: The method of determining the type of total drying tendency of the sludge to be treated based on the uniformity of the thickness of the sludge to be treated and the viscosity value of the sludge to be treated includes: If the uniformity of the thickness of the sludge to be treated is less than the preset uniformity and the viscosity of the sludge to be treated is less than the preset viscosity, it is determined that the drying tendency type of the sludge to be treated is a weak sludge full drying type; If the uniformity of the thickness of the sludge to be treated is greater than or equal to a preset uniformity or the viscosity of the sludge to be treated is greater than or equal to a preset viscosity, it is determined that the drying tendency type of the sludge to be treated is a strong sludge full drying type.

3. The sludge full drying treatment method according to claim 2, characterized in that: The uniformity of the thickness of the sludge to be treated is determined according to the historical average value of the uniformity of the thickness of the sludge during the sludge full drying process, and the preset viscosity value is determined according to the historical average value of the viscosity of the sludge during the sludge full drying process.

4. The sludge full drying treatment method according to claim 3, characterized in that: The method for determining the full drying treatment method based on the full drying tendency type of the sludge to be treated and the key monitoring parameters of the full drying treatment process include: If the full drying tendency type of the sludge to be treated is a strong sludge full drying type, the full drying treatment method is determined to be a staged stirring full drying method, and the key monitoring parameter of the full drying treatment process is determined to be the change in the uniformity of the sludge particles; If the full drying tendency type of the sludge to be treated is a weak sludge full drying type, the full drying treatment method is determined to be a ventilation-assisted full drying method, and the key monitoring parameter of the full drying treatment process is determined to be the change in sludge moisture content.

5. The sludge full drying treatment method according to claim 4, characterized in that: The method of determining the adjustment of the parameters of the full drying process based on the comparison results of the key monitoring parameters monitored in real time during the full drying process with the preset key monitoring parameters includes: If the variation of the uniformity of the sludge particles is not within the preset variation range of the uniformity of the sludge particles, the stirring frequency and the full drying temperature are adjusted; If the change in sludge moisture content is not within the preset range of sludge moisture content change, determine to adjust the wind speed and the full drying temperature; If the change in the uniformity of the sludge particles is within the preset range of the uniformity of the sludge particles or the change in the moisture content of the sludge is within the preset range of the moisture content of the sludge, it is determined to continue to fully dry the sludge using the original full drying process parameters.

6. The sludge full drying treatment method according to claim 5, characterized in that: The preset range of change in sludge particle uniformity is determined based on the historical average value of change in sludge particle uniformity during the full drying treatment of sludge with the same weight and the same full drying tendency type, and the preset range of change in sludge moisture content is determined based on the historical average value of change in sludge moisture content during the full drying treatment of sludge with the same weight and the same full drying tendency type.

7. The sludge full drying treatment method according to claim 6, characterized in that: The method of determining whether to adjust the parameters of the sludge full drying treatment process based on the sludge agglomeration area and the proportion of incompletely dried sludge obtained under the corresponding full drying treatment method includes: If the agglomeration area of ​​the sludge obtained under the corresponding full drying treatment method is greater than or equal to the preset agglomeration area or the proportion of incompletely dried sludge is greater than or equal to the preset proportion, it is determined that the parameters of the sludge full drying treatment process need to be adjusted.

8. The sludge full drying treatment method according to claim 7, characterized in that: The preset agglomeration area is determined according to the total area of ​​the fully dried sludge.

9. The sludge full drying treatment method according to claim 8, characterized in that: The adjustment amount of the preset uniformity is positively correlated with the agglomeration area of ​​the sludge obtained under the corresponding full drying treatment method, and the adjustment amount of the preset viscosity value is negatively correlated with the proportion of the incompletely dried sludge.

10. A sludge full drying treatment system using the sludge full drying treatment method according to any one of claims 1 to 9, characterized in that: include: A detection module, comprising a sludge thickness detection unit for detecting the thickness of the sludge to be treated placed on a horizontal surface and a sludge viscosity detection unit for detecting the viscosity value of the sludge to be treated; A data processing module, which is connected to the detection module, including a data analysis unit for comparing the uniformity of the thickness of the sludge to be treated with a preset uniformity and comparing the viscosity value of the sludge with a preset viscosity value to determine the type of full drying tendency of the sludge to be treated, and also including a parameter determination unit for determining the full drying treatment method and key monitoring parameters of the full drying treatment process according to the type of full drying tendency; A full drying treatment module, which is connected to the data processing module, includes a full drying treatment unit for full drying of sludge, a key parameter monitoring unit for real-time monitoring of key monitoring parameters in the full drying treatment process, and a parameter adjustment unit for determining whether to adjust the parameters of the full drying treatment process according to a comparison result between the key monitoring parameters of the key parameter monitoring unit and preset key monitoring parameters; An adjustment module is connected to the full drying treatment module and is used to determine whether to adjust the parameters of the sludge full drying treatment process according to the sludge agglomeration area and the proportion of incompletely dried sludge obtained under the corresponding full drying treatment method.

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