Treatment method and equipment for neutralizing phosphogypsum free acid and storage medium

Abstract

The invention provides a treatment method and device for neutralizing phosphogypsum free acid and a storage medium. The method comprises the steps that the initial free acid concentration of to-be-neutralized phosphogypsum and the release rate constant of the free acid are obtained; calculating first dynamic data according to the initial free acid concentration and the release rate constant of the free acid; obtaining an initial neutralizer release rate and a dissolution rate constant of the neutralizer; calculating to obtain second dynamic data according to the initial neutralizer release rate and dissolution rate constant; acquiring a temperature parameter and a humidity parameter; performing correction processing on the first dynamic data according to the temperature parameter to obtain third dynamic data; correcting the second dynamic data according to the humidity parameter to obtain fourth dynamic data; according to the third dynamic data and the fourth dynamic data, the free acid remaining amount of the phosphogypsum to be neutralized is determined, and the technical effect of improving the neutralization treatment efficiency and the neutralization stability of the phosphogypsum free acid is achieved.

Description

Technical Field

[0001] This application relates to the field of environmental engineering technology, and particularly to a method, equipment and storage medium for neutralizing free acid in phosphogypsum. Background Art

[0002] Phosphogypsum is a by-product of phosphate fertilizer production, containing a certain amount of free acid, mainly phosphoric acid and sulfuric acid. These acidic substances not only affect the reuse of phosphogypsum, but also cause environmental pollution. In the process of matrix utilization of phosphogypsum, the development of multifunctional vegetation materials requires not only the realization of ecological goals such as soil and water conservation, improvement of biodiversity, and increase of carbon sink, but also the solution of potential negative impacts of free acid on soil and vegetation. Therefore, the development of a more efficient and stable method for neutralizing free acid in phosphogypsum has become a promising direction.

[0003] In the prior art, the neutralization method usually uses a single chemical alkaline material, such as lime or calcium carbonate, which can effectively neutralize free acid in the short term;

[0004] However, in the prior art, most of the single chemical alkaline materials are statically put in the alkaline materials, without considering the slow release characteristics of free acid in phosphogypsum, it is difficult to achieve long-term stable acid-base balance. At the same time, this method often lacks consideration of environmental factors such as temperature and humidity, resulting in the neutralization effect being significantly affected by environmental changes, and there are technical problems of poor neutralization efficiency and low neutralization stability of free acid in phosphogypsum. Summary of the Invention

[0005] The method, equipment and storage medium for neutralizing free acid in phosphogypsum provided by this application are used to achieve the technical effect of improving the neutralization treatment efficiency and neutralization stability of free acid in phosphogypsum.

[0006] In the first aspect, this application provides a method for neutralizing free acid in phosphogypsum, including:

[0007] Obtain the initial free acid concentration and the release rate constant of free acid in the phosphogypsum to be neutralized;

[0008] Calculate the first dynamic data according to the initial free acid concentration and the release rate constant of free acid, where the first dynamic data is used to characterize the free acid release amount of the phosphogypsum to be neutralized;

[0009] Obtain the initial neutralizer release rate and the dissolution rate constant of the neutralizer;

[0010] Calculate the second dynamic data according to the initial neutralizer release rate and the dissolution rate constant, where the second dynamic data is used to characterize the neutralization rate of free acid;

[0011] Obtain the temperature parameter and the humidity parameter;

[0012] Modify the first dynamic data according to the temperature parameter to obtain the third dynamic data;

[0013] Modify the second dynamic data according to the humidity parameter to obtain the fourth dynamic data;

[0014] Determine the remaining amount of free acid in the phosphogypsum to be neutralized according to the third dynamic data and the fourth dynamic data.

[0015] In a possible implementation, the first dynamic data is calculated according to the initial free acid concentration and the release rate constant of the free acid, including:

[0016] Establish a first-order reaction kinetic model for the release of free acid, where the formula of the first-order reaction kinetic model is:

[0017]

[0018] Where, is the first dynamic data, representing the release amount of free acid in the phosphogypsum to be neutralized, is the initial free acid concentration, is the release rate constant of the free acid;

[0019] Calculate the first dynamic data according to the initial free acid concentration and the release rate constant of the free acid, in combination with the first-order reaction kinetic model.

[0020] In a possible implementation, the second dynamic data is calculated according to the initial release rate of the neutralizing agent and the dissolution rate constant, including:

[0021] Establish a kinetic model for the neutralization process of the neutralizing agent, where the formula of the kinetic model for the neutralization process is:

[0022]

[0023] Where, is the second dynamic data, is the initial release rate of the neutralizing agent, is the dissolution rate constant;

[0024] Calculate the second dynamic data according to the initial release rate of the neutralizing agent and the dissolution rate constant, in combination with the kinetic model for the neutralization process.

[0025] In a possible implementation, the temperature parameter includes the reaction rate constant at the current temperature, the activation energy of the neutralization reaction, and the pre-exponential factor.

[0026] In a possible implementation, the humidity parameter includes a humidity correction factor and the current relative humidity.

[0027] In a possible implementation, determining the remaining amount of free acid in the phosphogypsum to be neutralized according to the third dynamic data and the fourth dynamic data includes:

[0028] Calculating the integral of the fourth dynamic data to obtain the fifth dynamic data, where the fifth dynamic data is used to characterize the amount of free acid neutralized;

[0029] Determining the difference between the third dynamic data and the fifth dynamic data as the remaining amount of free acid in the phosphogypsum to be neutralized.

[0030] In a possible implementation, after determining the remaining amount of free acid in the phosphogypsum to be neutralized according to the third dynamic data and the fourth dynamic data, it further includes:

[0031] Judging whether the remaining amount of free acid in the phosphogypsum to be neutralized is within the normal range according to the remaining amount of free acid in the phosphogypsum to be neutralized and the preset threshold of the remaining amount of free acid;

[0032] If the remaining amount of free acid in the phosphogypsum to be neutralized is not within the normal range, a neutralizing agent is added to the phosphogypsum to be neutralized according to the remaining amount of free acid in the phosphogypsum to be neutralized.

[0033] In a possible implementation, the neutralizing agent is a composite neutralizing agent prepared from a bio-based alkaline material.

[0034] In a second aspect, the present application provides a treatment device for neutralizing free acid in phosphogypsum, including:

[0035] A first acquisition module for acquiring the initial free acid concentration and the free acid release rate constant of the phosphogypsum to be neutralized;

[0036] A first calculation module for calculating the first dynamic data according to the initial free acid concentration and the free acid release rate constant, where the first dynamic data is used to characterize the free acid release amount of the phosphogypsum to be neutralized;

[0037] A second acquisition module for acquiring the initial neutralizing agent release rate and the neutralizing agent dissolution rate constant;

[0038] A second calculation module for calculating the second dynamic data according to the initial neutralizing agent release rate and the dissolution rate constant, where the second dynamic data is used to characterize the free acid neutralization rate;

[0039] A third acquisition module for acquiring the temperature parameter and the humidity parameter;

[0040] A first processing module for correcting the first dynamic data according to the temperature parameter to obtain the third dynamic data.

[0041] A second processing module, configured to correct the second dynamic data according to the humidity parameter to obtain the fourth dynamic data.

[0042] A third processing module, configured to determine the remaining amount of free acid in the phosphogypsum to be neutralized according to the third dynamic data and the fourth dynamic data.

[0043] In a possible implementation manner, the first calculation module is further configured to:

[0044] Establish a first-order reaction kinetic model for free acid release, where the formula of the first-order reaction kinetic model is:

[0045]

[0046] Wherein, is the first dynamic data, representing the free acid release amount of the phosphogypsum to be neutralized, is the initial free acid concentration, is the free acid release rate constant;

[0047] Calculate the first dynamic data according to the initial free acid concentration and the free acid release rate constant, in combination with the first-order reaction kinetic model.

[0048] In a possible implementation manner, the second calculation module is further configured to:

[0049] Establish a kinetic model for the neutralization process of the neutralizing agent, where the formula of the kinetic model for the neutralization process is:

[0050]

[0051] Wherein, is the second dynamic data, is the initial release rate of the neutralizing agent, is the dissolution rate constant;

[0052] Calculate the second dynamic data according to the initial release rate of the neutralizing agent and the dissolution rate constant, in combination with the kinetic model for the neutralization process.

[0053] In a possible implementation manner, the third acquisition module is further configured to:

[0054] Temperature parameter;

[0055] The temperature parameter includes the reaction rate constant at the current temperature, the activation energy of the neutralization reaction, and the pre-exponential factor.

[0056] In a possible implementation manner, the third acquisition module is further configured to:

[0057] Humidity parameter;

[0058] Humidity parameters include humidity correction factor and current relative humidity.

[0059] In a possible implementation manner, the third processing module is further configured to:

[0060] Calculating the integral of the fourth dynamic data to obtain fifth dynamic data, wherein the fifth dynamic data is used to characterize the free acid neutralization amount;

[0061] The difference between the third dynamic data and the fifth dynamic data is determined as the remaining amount of free acid in the phosphogypsum to be neutralized.

[0062] In a possible implementation manner, the third processing module is further configured to:

[0063] According to the remaining free acid amount of the phosphogypsum to be neutralized and a preset remaining free acid amount threshold, determining whether the remaining free acid amount of the phosphogypsum to be neutralized is within a normal range;

[0064] If the residual amount of free acid in the phosphogypsum to be neutralized is not within a normal range, a neutralizing agent is added to the phosphogypsum to be neutralized according to the residual amount of free acid in the phosphogypsum to be neutralized.

[0065] In a possible implementation manner, the second acquisition module is further used to:

[0066] Neutralizer;

[0067] The neutralizer is a composite neutralizer prepared from bio-based alkaline materials.

[0068] In a third aspect, the present application provides a processing device for neutralizing free acid of phosphogypsum, comprising: a memory, a processor;

[0069] Memory stores computer-executable instructions;

[0070] The processor executes the computer-executable instructions stored in the memory, so that the processor executes the above first aspect and / or various possible implementations of the first aspect.

[0071] In a fourth aspect, the present application provides a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to implement the above first aspect and / or various possible implementations of the first aspect.

[0072] In a fifth aspect, the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the above first aspect and / or various possible implementations of the first aspect.

[0073] A method, device, and storage medium for neutralizing free acid in phosphogypsum. On the one hand, by obtaining the initial free acid concentration and release rate constant of phosphogypsum, the release amount of free acid, that is, the first dynamic data, can be accurately calculated, thereby providing accurate input data for the neutralization process. On the other hand, by obtaining the initial release rate and dissolution rate constant of the neutralizer, the dynamic release amount of the neutralizer, that is, the second dynamic data, can be calculated, thereby optimizing the use efficiency of the neutralizer. At the same time, by introducing temperature parameters and humidity parameters to correct the free acid release amount and neutralization rate, the neutralization process under actual environmental conditions can be more accurately reflected, improving the adaptability and reliability of the treatment. In addition, not only can the remaining amount of free acid be determined in real time based on the corrected dynamic data, that is, the third dynamic data and the fourth dynamic data, thereby dynamically adjusting the dosing amount and rate of the neutralizer, but also through precise calculation and dynamic adjustment, the usage amount of the neutralizer can be reduced, the treatment cost can be lowered, and the impact on the environment can be reduced. Moreover, by comprehensively considering the dynamic changes of free acid release and the neutralizer, the neutralization process can be accelerated, and the overall treatment efficiency can be improved. Further, by introducing corrections of environmental parameters such as temperature and humidity, the system can better cope with changes under different environmental conditions, enhancing the stability and robustness of the system. Finally, the selection of phosphogypsum can not only neutralize free acid, but also promote soil and water conservation, improve biodiversity, and increase carbon sinks, achieving multi-objective coordination of ecological restoration, and having good ecological friendliness and sustainability, thereby achieving the technical effect of improving the neutralization treatment efficiency and neutralization stability of free acid in phosphogypsum. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] The accompanying drawings herein are incorporated into and constitute a part of this specification, showing embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application.

[0075] Figure 1 A schematic diagram of an application data processing system architecture provided by an embodiment of the present application;

[0076] Figure 2 A flowchart showing the method for treating free acid in phosphogypsum provided by an embodiment of the present application Figure 1 ;

[0077] Figure 3 A flowchart showing the method for treating free acid in phosphogypsum provided by an embodiment of the present application Figure 2 ;

[0078] Figure 4 A flowchart showing the method for treating free acid in phosphogypsum provided by an embodiment of the present application Figure 3 ;

[0079] Figure 5Schematic structural diagram of the treatment device for neutralizing free acid in phosphogypsum provided by an embodiment of the present application;

[0080] Figure 6 Schematic structural diagram of the treatment equipment for neutralizing free acid in phosphogypsum provided by an embodiment of the present application.

[0081] Through the above-mentioned drawings, specific embodiments of the present application have been shown, and there will be more detailed descriptions hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Specific embodiments

[0082] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0083] In the prior art, a single chemical alkaline material is mostly statically added with the alkaline material, without considering the slow release characteristics of free acid in phosphogypsum, making it difficult to achieve long-term stable acid-base balance. At the same time, this method often lacks consideration of environmental factors such as temperature and humidity, resulting in the neutralization effect being significantly affected by environmental changes, and there are technical problems of poor neutralization efficiency and low neutralization stability of free acid in phosphogypsum.

[0084] In view of the above problems, a method, device, and storage medium for neutralizing the free acid in phosphogypsum provided by this application neutralize the free acid in phosphogypsum according to the composite neutralization method to ensure the acid-base balance of the material. On the one hand, by obtaining the initial free acid concentration and release rate constant of phosphogypsum, the release amount of free acid can be accurately calculated, providing precise input data for the neutralization process. On the other hand, by obtaining the initial release rate and dissolution rate constant of the neutralizing agent, the dynamic release amount of the neutralizing agent can be calculated, optimizing the usage efficiency of the neutralizing agent. At the same time, by introducing temperature and humidity parameters to correct the free acid release amount and neutralization rate, the neutralization process under actual environmental conditions can be more accurately reflected, improving the adaptability and reliability of the treatment. In addition, not only can the remaining amount of free acid be determined in real time based on the corrected dynamic data, dynamically adjusting the dosing amount and rate of the neutralizing agent, but also through precise calculation and dynamic adjustment, the usage amount of the neutralizing agent can be reduced, reducing the treatment cost while minimizing the adverse impact on the environment. By comprehensively considering the dynamic changes in free acid release and the neutralizing agent, the neutralization process can be accelerated, improving the overall treatment efficiency. Further, by introducing corrections for environmental parameters such as temperature and humidity, the system can better respond to changes under different environmental conditions, enhancing the stability and robustness of the system. Finally, the selection of phosphogypsum can not only neutralize free acid but also promote soil and water conservation, increase biodiversity, and enhance carbon sinks, achieving multi-objective coordination of ecological restoration, with good ecological friendliness and sustainability, thus achieving the technical effect of improving the neutralization treatment efficiency and neutralization stability of the free acid in phosphogypsum.

[0085] The following uses specific embodiments to elaborate in detail on the technical solutions of this application and how the technical solutions of this application solve the above technical problems. These several specific embodiments can be combined with each other, and concepts or processes that are the same or similar may not be repeated in some embodiments. The following will describe the embodiments of this application with reference to the accompanying drawings.

[0086] Figure 1 It is a schematic diagram of the architecture of an application data processing system provided by an embodiment of this application, and this application data processing system is a computer device. As Figure 1 shown, the above architecture includes at least one of a data acquisition device 101, a processing device 102, and a display device 103.

[0087] It can be understood that the structure schematically shown in the embodiments of this application does not constitute a specific limitation on the architecture of the application data processing system. In other feasible embodiments of this application, the above architecture may include more or fewer components than shown in the figure, or combine certain components, or split certain components, or have different component arrangements, which can be specifically determined according to the actual application scenario and will not be limited here. Figure 1 The components shown can be implemented in hardware, software, or a combination of software and hardware.

[0088] In a specific implementation process, the data acquisition device 101 may include an input / output interface or a communication interface. The data acquisition device 101 may be connected to the processing device through the input / output interface or the communication interface.

[0089] The processing device 102 may obtain the initial free acid concentration and the free acid release rate constant of the phosphogypsum to be neutralized; calculate the first dynamic data according to the initial free acid concentration and the free acid release rate constant, where the first dynamic data is used to characterize the free acid release amount of the phosphogypsum to be neutralized; obtain the initial neutralizer release rate and the neutralizer dissolution rate constant; calculate the second dynamic data according to the initial neutralizer release rate and the dissolution rate constant, where the second dynamic data is used to characterize the neutralization rate of the free acid; obtain the temperature parameter and the humidity parameter; perform correction processing on the first dynamic data according to the temperature parameter to obtain the third dynamic data; perform correction processing on the second dynamic data according to the humidity parameter to obtain the fourth dynamic data; determine the remaining amount of free acid in the phosphogypsum to be neutralized according to the third dynamic data and the fourth dynamic data.

[0090] The display device 103 may also be a touch display screen or the screen of a terminal device, and is used to receive user instructions while displaying the above content to achieve interaction with the user.

[0091] It should be understood that the above processing device may be implemented by a processor reading instructions in a memory and executing the instructions, or may be implemented by a chip circuit.

[0092] In addition, the network architecture and service scenarios described in the embodiments of the present application are for more clearly explaining the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art know that with the evolution of the network architecture and the emergence of new service scenarios, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.

[0093] Figure 2 For the flow diagram of the method for treating free acid in phosphogypsum provided by the embodiments of the present application Figure 1 , as Figure 2 shown, the method for treating free acid in phosphogypsum provided in this embodiment includes:

[0094] S201. Obtain the initial free acid concentration and the free acid release rate constant of the phosphogypsum to be neutralized;

[0095] The computer device controls the corresponding data acquisition machine to continuously monitor and obtain the initial free acid concentration and the free acid release rate constant of the phosphogypsum to be neutralized, where the data acquisition machine may be composed of one or more sensors.

[0096] S202. Calculate the first dynamic data based on the initial free acid concentration and the release rate constant of the free acid;

[0097] In this embodiment, the first dynamic data is used to characterize the free acid release amount of the phosphogypsum to be neutralized.

[0098] Based on the obtained initial free acid concentration and the release rate constant of the free acid, match the corresponding calculation formula to further determine the free acid release amount of the phosphogypsum to be neutralized.

[0099] S203. Obtain the initial neutralizer release rate and the dissolution rate constant of the neutralizer;

[0100] In this embodiment, the neutralizer is a composite neutralizer prepared from a bio-based alkaline material.

[0101] The computer device continues to control the data acquisition machine to continuously monitor and obtain the initial neutralizer release rate and the dissolution rate constant of the neutralizer.

[0102] S204. Calculate the second dynamic data based on the initial neutralizer release rate and the dissolution rate constant;

[0103] In this embodiment, the second dynamic data is used to characterize the neutralization rate of the free acid.

[0104] Based on the obtained initial neutralizer release rate and the dissolution rate constant, match the corresponding calculation formula to further determine the neutralization rate of the free acid.

[0105] S205. Obtain the temperature parameter and the humidity parameter.

[0106] In this embodiment, the temperature parameter includes the reaction rate constant at the current temperature, the activation energy of the neutralization reaction, and the pre-exponential factor; the humidity parameter includes the humidity correction factor and the current relative humidity.

[0107] The computer device continues to control the data acquisition machine to continuously monitor and obtain the temperature parameter including the reaction rate constant at the current temperature, the activation energy of the neutralization reaction, and the pre-exponential factor, and the humidity parameter including the humidity correction factor and the current relative humidity.

[0108] S206. Perform a correction process on the first dynamic data according to the temperature parameter to obtain the third dynamic data;

[0109] Considering the influence of the temperature factor on the neutralization process in different environmental conditions, the computer device continuously monitors the neutralization process, constructs a dynamic feedback mechanism, and introduces the temperature parameter. Through the following formula, dynamically correct the calculated free acid release amount of the phosphogypsum to be neutralized to obtain the corrected third dynamic data:

[0110]

[0111] Among them, is the third dynamic data, is the temperature at which the reaction rate constant, is the activation energy of the neutralization reaction, k0 is the pre-exponential factor, is the initial free acid concentration.

[0112] S207. According to the humidity parameter, correct the second dynamic data to obtain the fourth dynamic data;

[0113] Considering the influence of the humidity factor on the neutralization process in different environmental conditions, add the humidity parameter to the above dynamic feedback mechanism, and correct the second dynamic data calculated above through the following formula to obtain the corrected fourth dynamic data:

[0114]

[0115] Among them, is the fourth dynamic data, α is the humidity correction factor, k2(T) is the neutralization reaction rate constant at temperature H is the current relative humidity, is the initial neutralizer release rate.

[0116] S208. Determine the remaining free acid amount of the phosphogypsum to be neutralized according to the third dynamic data and the fourth dynamic data.

[0117] According to the corrected third dynamic data and the fourth dynamic data, further obtain the remaining free acid amount of the phosphogypsum to be neutralized.

[0118] A method for treating free acid in phosphogypsum provided by the present application can, on the one hand, accurately calculate the release amount of free acid, that is, the first dynamic data, by obtaining the initial free acid concentration and release rate constant of phosphogypsum, so as to provide accurate input data for the neutralization process. On the other hand, by obtaining the initial release rate and dissolution rate constant of the neutralizer, the dynamic release amount of the neutralizer, that is, the second dynamic data, can be calculated, thereby optimizing the use efficiency of the neutralizer. At the same time, by introducing temperature parameters and humidity parameters to correct the free acid release amount and neutralization rate, the neutralization process under actual environmental conditions can be more accurately reflected, improving the adaptability and reliability of the treatment. In addition, not only can the remaining amount of free acid be determined in real time according to the corrected dynamic data, that is, the third dynamic data and the fourth dynamic data, so as to dynamically adjust the dosing amount and rate of the neutralizer, but also through accurate calculation and dynamic adjustment, the usage amount of the neutralizer can be reduced, the treatment cost can be lowered, and the impact on the environment can be reduced. And by comprehensively considering the dynamic changes of free acid release and the neutralizer, the neutralization process can be accelerated, and the overall treatment efficiency can be improved. Further, by introducing corrections of environmental parameters such as temperature and humidity, the system can better cope with changes under different environmental conditions, enhancing the stability and robustness of the system. Finally, the selection of phosphogypsum can not only neutralize free acid, but also promote soil and water conservation, improve biodiversity and increase carbon sinks, realizing the multi-objective coordination of ecological restoration, and having good ecological friendliness and sustainability, thus achieving the technical effect of improving the neutralization treatment efficiency and neutralization stability of free acid in phosphogypsum.

[0119] Figure 3 Schematic diagram of the process of the method for treating free acid in phosphogypsum provided by the embodiment of the present application Figure 2 , such as Figure 3 shown. On the basis of the above embodiment, the calculation processes of the first dynamic data and the second dynamic data are described in detail, including:

[0120] S301. Establish a first-order reaction kinetic model for free acid release;

[0121] In this embodiment, the formula of the first-order reaction kinetic model is:

[0122]

[0123] where is the first dynamic data, representing the free acid release amount of the phosphogypsum to be neutralized, is the initial free acid concentration, is the free acid release rate constant.

[0124] S302. Calculate the first dynamic data according to the initial free acid concentration and the free acid release rate constant, in combination with the first-order reaction kinetic model;

[0125] Input the initial free acid concentration and the release rate constant of the free acid into the above first-order reaction kinetic model to obtain the first dynamic data output by the first-order reaction kinetic model.

[0126] S303. Establish a kinetic model for the neutralization process of the neutralizing agent;

[0127] In this embodiment, the formula of the kinetic model for the neutralization process is:

[0128]

[0129] where, is the second dynamic data, is the initial release rate of the neutralizing agent, is the dissolution rate constant.

[0130] S304. According to the initial release rate of the neutralizing agent and the dissolution rate constant, combined with the kinetic model for the neutralization process, calculate to obtain the second dynamic data.

[0131] Input the initial release rate of the neutralizing agent and the dissolution rate constant into the kinetic model for the neutralization process to obtain the second dynamic data output by the kinetic model for the neutralization process.

[0132] The method for treating free acid in phosphogypsum provided by the embodiment of the present application can accurately describe the dynamic processes of free acid release and neutralizing agent consumption through the first-order reaction kinetic model, providing a theoretical basis for subsequent calculations. Moreover, the calculation of the first dynamic data can predict the release amount of free acid in real time, providing data support for the dosing of the neutralizing agent. In addition, the calculation of the second dynamic data can predict the release amount and neutralization rate of the neutralizing agent in real time, thereby optimizing the use efficiency of the neutralizing agent. By combining the first dynamic data and the second dynamic data, the dosing amount and rate of the neutralizing agent can be dynamically adjusted to ensure the efficiency and effect of the neutralization process. In addition, by introducing the kinetic model, the system can better adapt to different initial conditions and environmental changes, enhancing the robustness and adaptability of the system, and achieving the technical effect of improving the neutralization treatment efficiency and neutralization stability of free acid in phosphogypsum.

[0133] Figure 4 is a flow schematic of the method for treating free acid in phosphogypsum provided by the embodiment of the present application Figure 3 As Figure 4 shown, on the basis of the above embodiment, this embodiment details the determination process of the remaining amount of free acid in the phosphogypsum to be neutralized, including:

[0134] S401. Calculate the integral of the fourth dynamic data to obtain the fifth dynamic data;

[0135] In this embodiment, the fifth dynamic data is used to characterize the amount of free acid neutralized.

[0136] The fourth dynamic data is integrated by the following formula to obtain the corresponding free acid neutralization amount:

[0137]

[0138] in, is the fifth dynamic data at time t, It is the fourth dynamic data at time t.

[0139] S402, determining the difference between the third dynamic data and the fifth dynamic data as the remaining amount of free acid of the phosphogypsum to be neutralized;

[0140] The remaining amount of free acid in the phosphogypsum to be neutralized is determined by the following formula:

[0141]

[0142] in, is the remaining free acid concentration at time t, is the third dynamic data at time t, It is the fifth dynamic data at time t.

[0143] In one possible implementation, a dynamic evaluation system is established to continuously monitor the release of free acid and its reaction process with the bio-based alkaline neutralizer;

[0144] It should be noted that when the temperature is detected and / or the current relative humidity H is updated, based on the new temperature and / or current relative humidity H, for Update and get new .

[0145] S403, judging whether the free acid remaining amount of the phosphogypsum to be neutralized is within a normal range according to the free acid remaining amount of the phosphogypsum to be neutralized and a preset free acid remaining amount threshold;

[0146] The remaining free acid amount of the phosphogypsum to be neutralized is compared with a preset free acid remaining amount threshold to determine whether the remaining free acid amount of the phosphogypsum to be neutralized is within a normal range.

[0147] S404. If the residual amount of free acid in the phosphogypsum to be neutralized is not within a normal range, a neutralizing agent is added to the phosphogypsum to be neutralized according to the residual amount of free acid in the phosphogypsum to be neutralized.

[0148] Specifically, when it is detected that the remaining amount of free acid in the phosphogypsum to be neutralized is not within the normal range, that is, the pH value is not within the normal range, the remaining amount threshold of the free acid is obtained. , and determine the discriminant to check if it holds;

[0149] If it holds, it indicates that the residual amount of free acid is within the normal range;

[0150] If it does not hold, it indicates that the residual amount of free acid is not within the normal range, and a biological base neutralizer needs to be added to adjust the pH of the phosphogypsum base. Among them:

[0151] Solve the equation to obtain the warning time , that is ; at the same time, construct the amount to be neutralized of the free acid to be neutralized ;

[0152] Obtain the current time , calculate the time period from the current time to the warning time , the current time corresponding residual amount of free acid ;

[0153] Calculate the amount to be neutralized of the free acid to be neutralized , and construct the following formula:

[0154]

[0155] Among them, is the target neutralizer release rate;

[0156] Furthermore, according to the following formula, solve for :

[0157]

[0158] Then, according to and , obtain the dosage of the biological base neutralizer. Calculate the reference number of the dosage difference ; determine the dosage interval where it is located, and use the dosage interval where is located as the above dosage.

[0159] The treatment method for neutralizing the free acid in phosphogypsum provided by the embodiments of the present application, on the one hand, can accurately determine the remaining amount of free acid by calculating the total neutralization amount of the neutralizing agent, that is, the fifth dynamic data, through integral calculation, and combining with the total release amount of free acid, that is, the third dynamic data. On the other hand, according to the comparison result between the remaining amount of free acid and the threshold value, the dosing amount of the neutralizing agent can be dynamically adjusted to avoid excessive or insufficient neutralizing agent, improve the resource utilization efficiency. Through presetting the threshold value and dynamic adjustment, not only can the neutralization process be accelerated and the overall treatment efficiency be improved, but also the remaining amount of free acid can be ensured to be controlled within the normal range to achieve the expected neutralization effect. At the same time, by dynamically adjusting the dosing amount of the neutralizing agent, the system can better adapt to different initial conditions and environmental changes, enhance the robustness and adaptability of the system, and achieve the technical effect of improving the accuracy and reliability of the treatment of neutralizing the free acid in phosphogypsum.

[0160] Figure 5 The figure is a schematic structural diagram of the treatment device for neutralizing the free acid in phosphogypsum provided by the embodiments of the present application. The device in this embodiment can be in the form of software and / or hardware. As Figure 5 shown, the treatment device 500 for neutralizing the free acid in phosphogypsum provided by the embodiments of the present application includes: a first acquisition module 501, a first calculation module 502, a second acquisition module 503, a second calculation module 504, a third acquisition module 505, a first processing module 506, a second processing module 507, and a third processing module 508:

[0161] The first acquisition module 501 is configured to acquire the initial free acid concentration of the phosphogypsum to be neutralized and the release rate constant of the free acid.

[0162] The first calculation module 502 is configured to calculate the first dynamic data according to the initial free acid concentration and the release rate constant of the free acid, where the first dynamic data is used to characterize the free acid release amount of the phosphogypsum to be neutralized.

[0163] The second acquisition module 503 is configured to acquire the initial release rate of the neutralizing agent and the dissolution rate constant of the neutralizing agent.

[0164] The second calculation module 504 is configured to calculate the second dynamic data according to the initial release rate of the neutralizing agent and the dissolution rate constant, where the second dynamic data is used to characterize the neutralization rate of the free acid.

[0165] The third acquisition module 505 is configured to acquire the temperature parameter and the humidity parameter.

[0166] The first processing module 506 is configured to perform correction processing on the first dynamic data according to the temperature parameter to obtain the third dynamic data.

[0167] The second processing module 507 is configured to correct the second dynamic data according to the humidity parameter to obtain the fourth dynamic data.

[0168] The third processing module 508 is configured to determine the remaining amount of free acid in the phosphogypsum to be neutralized according to the third dynamic data and the fourth dynamic data.

[0169] In a possible implementation manner, the first calculation module 502 is further configured to:

[0170] Establish a first-order reaction kinetic model for free acid release, where the formula of the first-order reaction kinetic model is:

[0171]

[0172] Wherein, is the first dynamic data, representing the free acid release amount of the phosphogypsum to be neutralized, is the initial free acid concentration, is the free acid release rate constant;

[0173] Calculate the first dynamic data according to the initial free acid concentration and the free acid release rate constant, in combination with the first-order reaction kinetic model.

[0174] In a possible implementation manner, the second calculation module 504 is further configured to:

[0175] Establish a kinetic model for the neutralization process of the neutralizing agent, where the formula of the neutralization process kinetic model is:

[0176]

[0177] Wherein, is the second dynamic data, is the initial neutralizing agent release rate, is the dissolution rate constant;

[0178] Calculate the second dynamic data according to the initial neutralizing agent release rate and the dissolution rate constant, in combination with the neutralization process kinetic model.

[0179] In a possible implementation manner, the third acquisition module 505 is further configured to:

[0180] Temperature parameter;

[0181] The temperature parameter includes the reaction rate constant at the current temperature, the activation energy of the neutralization reaction, and the pre-exponential factor.

[0182] In a possible implementation manner, the third acquisition module 505 is further configured to:

[0183] Humidity parameter;

[0184] The humidity parameter includes a humidity correction factor and the current relative humidity.

[0185] In a possible implementation manner, the third processing module 508 is further configured to:

[0186] Calculate the integral of the fourth dynamic data to obtain the fifth dynamic data, where the fifth dynamic data is used to characterize the amount of free acid neutralization;

[0187] Determine the difference between the third dynamic data and the fifth dynamic data as the remaining amount of free acid in the phosphogypsum to be neutralized.

[0188] In a possible implementation manner, the third processing module 508 is further configured to:

[0189] According to the remaining amount of free acid in the phosphogypsum to be neutralized and a preset threshold value of the remaining amount of free acid, determine whether the remaining amount of free acid in the phosphogypsum to be neutralized is within the normal range;

[0190] If the remaining amount of free acid in the phosphogypsum to be neutralized is not within the normal range, then according to the remaining amount of free acid in the phosphogypsum to be neutralized, add a neutralizing agent to the phosphogypsum to be neutralized.

[0191] In a possible implementation manner, the second acquisition module 503 is further configured to:

[0192] Neutralizing agent;

[0193] The neutralizing agent is a composite neutralizing agent prepared from a bio-based alkaline material.

[0194] The processing device for neutralizing the free acid of phosphogypsum provided in this embodiment can execute the method provided in the above method embodiment, and its implementation principle and technical effect are similar, and will not be elaborated here in this embodiment.

[0195] Figure 6 This is a schematic structural diagram of the processing equipment for neutralizing the free acid of phosphogypsum provided in the embodiments of the present application. As Figure 6 shown, the electronic device 600 provided in this embodiment includes: at least one processor 601 and a memory 602. Optionally, the device 600 further includes a communication component 603. Among them, the processor 601, the memory 602, and the communication component 603 are connected through a bus.

[0196] In the specific implementation process, at least one processor 601 executes the computer execution instructions stored in the memory 602, so that at least one processor 601 executes the above method.

[0197] The specific implementation process of the processor 601 can refer to the above method embodiment, and its implementation principle and technical effect are similar, and will not be elaborated here in this embodiment.

[0198] In the above embodiments, it should be understood that the processor may be a central processing unit (CPU for short), or other general-purpose processors, digital signal processors (DSP for short), application specific integrated circuits (ASIC for short), etc. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the method disclosed in combination with the invention can be directly implemented by the execution of the hardware processor, or implemented by the combination of hardware and software modules in the processor.

[0199] The memory may include a high-speed random access memory (RAM), and may also include non-volatile memory (NVM), such as at least one disk memory.

[0200] The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For the sake of representation, the buses in the drawings of this application are not limited to only one bus or one type of bus.

[0201] This application also provides a computer program product, including a computer program, which implements the above method when executed by a processor.

[0202] This application also provides a computer-readable storage medium, in which computer-executable instructions are stored, and when the processor executes the computer-executable instructions, the above method is implemented.

[0203] The above-readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, a magnetic disk or an optical disk. The readable storage medium can be any available medium accessible by a general-purpose or special-purpose computer.

[0204] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can be located in an Application Specific Integrated Circuit (ASIC). Of course, the processor and the readable storage medium can also exist as discrete components in a device.

[0205] The division of units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Additionally, the couplings or direct couplings or communication connections shown or discussed among each other can be through some interfaces, and the indirect couplings or communication connections of devices or units can be in electrical, mechanical, or other forms.

[0206] The units described as separate components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0207] Furthermore, in each embodiment of the present invention, the functional units can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit.

[0208] If the function 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 storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or part of this technical solution can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods in each embodiment of the present invention. The aforementioned storage medium includes various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs.

[0209] Those of ordinary skill in the art can understand that all or part of the steps to implement the above method embodiments can be completed by hardware related to program instructions. The foregoing program can be stored in a computer-readable storage medium. When the program is executed, it performs the steps including the above method embodiments; and the foregoing storage medium includes: various media such as ROM, RAM, magnetic disk, or optical disk that can store program codes.

[0210] Finally, it should be noted that: After considering the specification and practicing the invention disclosed herein, those skilled in the art will readily think of other embodiments of the present invention. The present invention is intended to cover any variations, uses, or adaptations of the present invention, which follow the general principles of the present invention and include the common general knowledge or conventional technical means in the technical field not disclosed in the present invention. It is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present invention is only limited by the appended claims.

Claims

1. A treatment method for neutralizing the free acid in phosphogypsum, characterized in that, Applied to a computer device, the method includes: Obtaining the initial free acid concentration and the release rate constant of free acid of the phosphogypsum to be neutralized; Calculating first dynamic data based on the initial free acid concentration and the release rate constant of free acid, wherein the first dynamic data is used to characterize the free acid release amount of the phosphogypsum to be neutralized; Obtaining the initial neutralizer release rate and the dissolution rate constant of the neutralizer; Calculating second dynamic data based on the initial neutralizer release rate and the dissolution rate constant, wherein the second dynamic data is used to characterize the neutralization rate of free acid; Obtaining temperature parameters and humidity parameters; Performing correction processing on the first dynamic data according to the temperature parameters to obtain third dynamic data; Performing correction processing on the second dynamic data according to the humidity parameters to obtain fourth dynamic data; Determining the remaining amount of free acid of the phosphogypsum to be neutralized according to the third dynamic data and the fourth dynamic data.

2. The method according to claim 1, characterized in that, The calculating the first dynamic data according to the initial free acid concentration and the release rate constant of free acid includes: Establishing a first-order reaction kinetic model for free acid release, wherein the formula of the first-order reaction kinetic model is: Among them, is the first dynamic data, representing the free acid release amount of the phosphogypsum to be neutralized, is the initial free acid concentration, is the release rate constant of the free acid; Calculating the first dynamic data based on the initial free acid concentration and the release rate constant of free acid in combination with the first-order reaction kinetic model.

3. The method according to claim 2, wherein The calculating the second dynamic data according to the initial neutralizer release rate and the dissolution rate constant includes: Establishing a kinetic model for the neutralization process of the neutralizer, wherein the formula of the kinetic model for the neutralization process is: wherein, is the second dynamic data, is the initial neutralizer release rate, is the dissolution rate constant; Calculating the second dynamic data based on the initial neutralizer release rate and the dissolution rate constant in combination with the kinetic model for the neutralization process.

4. The method according to claim 3, characterized in that The temperature parameters include the reaction rate constant at the current temperature, the activation energy of the neutralization reaction, and the pre-exponential factor.

5. The method according to claim 4, characterized in that The humidity parameters include a humidity correction factor and the current relative humidity.

6. The method according to any one of claims 1 to 5, characterized in that The determining the remaining amount of free acid of the phosphogypsum to be neutralized according to the third dynamic data and the fourth dynamic data includes: Calculating the integral of the fourth dynamic data to obtain fifth dynamic data, wherein the fifth dynamic data is used to characterize the neutralized amount of free acid; Determining the difference between the third dynamic data and the fifth dynamic data as the remaining amount of free acid of the phosphogypsum to be neutralized.

7. The method according to claim 6, wherein After the determining the remaining amount of free acid of the phosphogypsum to be neutralized according to the third dynamic data and the fourth dynamic data, it further includes: Judging whether the remaining amount of free acid of the phosphogypsum to be neutralized is within the normal range according to the remaining amount of free acid of the phosphogypsum to be neutralized and a preset remaining amount threshold of free acid; If the remaining amount of free acid of the phosphogypsum to be neutralized is not within the normal range, then putting the neutralizer into the phosphogypsum to be neutralized according to the remaining amount of free acid of the phosphogypsum to be neutralized.

8. The method according to any one of claims 1 to 5, characterized in that The neutralizer is a composite neutralizer prepared from a bio-based alkaline material.

9. A treatment device for neutralizing free acid in phosphogypsum, characterized in that, Including: At least one processor; And A memory communicatively connected to the at least one processor; wherein, The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the method for neutralizing free acid in phosphogypsum according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, they are used to implement the method for neutralizing free acid in phosphogypsum according to any one of claims 1 to 7.

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