A method and system for determining optimum discharge slurry concentration of a thickener
By setting the maximum viscosity of the slurry, the minimum cleaning cycle of the discharge pipe, and the amount of flocculant added, and combining parameters such as the feed concentration, density, and volume of the thickener, the optimal discharge slurry concentration of the thickener is determined. This solves the problems of low production efficiency, high energy consumption, and resource waste caused by unsuitable discharge slurry concentration, and achieves more efficient production and economic benefits.
Patent Information
- Application Number
- CN202380012339.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-29
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2043-11-29
AI Technical Summary
In existing technologies, the determination of the output slurry concentration of thickeners mainly relies on the experience of workers, which leads to inappropriate setting of the output slurry concentration, affecting production efficiency, energy consumption, waste discharge and resource utilization efficiency, and there is also the problem of unbalanced consideration of multiple factors.
By setting the maximum viscosity of the slurry, the minimum cleaning cycle of the discharge pipe, and the amount of flocculant added, and combining parameters such as the feed concentration, density, volume, and discharge rate of the thickener, the optimal range of slurry concentration for the thickener is determined. Constraints are imposed by a viscosity control module, a cleaning cycle control module, and a settling rate module, and the optimal slurry concentration for the thickener is finally determined.
A method for determining the optimal discharge slurry concentration of a thickener was developed. This method employs viscosity control, descaling cycle control, and settling rate control modules as constraints to ultimately determine the optimal range of discharge slurry concentration for the thickener.
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Figure CN117836047B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of thickener technology, and in particular to a method and system for determining the optimal discharge slurry concentration of a thickener. Background Technology
[0002] A thickener is a solid-liquid separation device based on gravity settling, typically a shallow cylindrical tank with a conical bottom. It can concentrate low-concentration slurry into high-concentration underflow slurry through gravity settling. With the help of a slowly rotating rake installed inside the thickener, the thickened underflow slurry is discharged from the underflow outlet at the bottom of the thickener.
[0003] The concentration of the discharge slurry from the thickener can be set as needed. In existing technology, the appropriate discharge slurry concentration is mainly determined by the experience of the workers. The following factors are primarily considered when determining the optimal discharge slurry concentration:
[0004] 1) Production efficiency: Increasing the slurry concentration can reduce the volume of liquid transported, pumped and processed, thereby reducing processing costs. This can improve the efficiency of the production process and save energy and resources.
[0005] 2) Energy consumption: Processing more concentrated slurries usually requires less pumping power, increasing the high-pressure leaching capacity per unit time and reducing energy consumption.
[0006] 3) Wastewater discharge: Increasing the slurry concentration can reduce wastewater generation. This helps reduce wastewater treatment costs and environmental impact, meeting the requirements of sustainable development.
[0007] 4) Resource utilization efficiency: High-concentration slurry means that the same amount of solid matter can be transported and processed with a smaller volume of liquid. This helps to utilize raw materials and resources more efficiently.
[0008] 5) Reduce costs: By reducing water usage, lowering wastewater treatment costs, reducing pumping energy consumption, and improving production efficiency, increasing slurry concentration can reduce overall production costs.
[0009] (6) Flowability problem: The concentration of iron and aluminum ions in high-concentration slurry is greater, which accelerates the scaling of the reactor and discharge pipe, shortens the maintenance cycle caused by scaling, and affects the operating efficiency of the unit. At the same time, high-concentration slurry puts a greater load on the pumping facilities.
[0010] Because there are many factors to consider, different staff members may have different perspectives, which may lead to a large difference in the set discharge slurry concentration. Therefore, determining the discharge slurry concentration through this subjective judgment method is prone to misjudgment, resulting in the discharge slurry concentration being set too high or too low, which is not conducive to achieving the balance point of maximizing benefits. Summary of the Invention
[0011] In view of this, it is necessary to provide a method for determining the optimal discharge slurry concentration of a thickener, so as to provide a method for determining the discharge slurry concentration at a balance point that can comprehensively consider different influencing factors and achieve maximum benefits.
[0012] To achieve the above objectives, the present invention provides a method for determining the optimal discharge slurry concentration of a thickener, comprising:
[0013] Set the maximum viscosity of the slurry, and determine the first optimal discharge slurry concentration range of the thickener based on the maximum viscosity of the slurry;
[0014] Set the minimum cleaning cycle of the discharge pipe, and determine the second optimal discharge slurry concentration range of the thickener based on the minimum cleaning cycle of the discharge pipe.
[0015] Obtain the concentration of the feed slurry to the thickener, the density of the feed slurry to the thickener, the effective volume of the thickener, the discharge rate, and the amount of flocculant added. Based on the concentration of the feed slurry to the thickener, the density of the feed slurry to the thickener, the effective volume of the thickener, the discharge rate, and the amount of flocculant added, determine the third optimal range of discharge slurry concentration for the thickener.
[0016] The optimal discharge slurry concentration range of the thickener is determined based on the first, second, and third optimal discharge slurry concentration ranges.
[0017] In some embodiments, a specific method for determining the first optimal discharge slurry concentration range of the thickener based on the highest viscosity of the slurry includes the following steps:
[0018] Determine the relationship between slurry viscosity and the concentration of slurry discharged from the thickener;
[0019] Based on the relationship between slurry viscosity and thickener discharge slurry concentration, as well as the maximum viscosity of the slurry, the first optimal discharge slurry concentration range of the thickener is determined.
[0020] In some embodiments, the relationship between slurry viscosity and thickener discharge slurry concentration is as follows:
[0021] η = a1C + a2C 2 +a3C 3 +a4
[0022] Where C is the concentration of the slurry output from the thickener, and a1 to a4 are constants.
[0023] In some embodiments, a minimum cleaning cycle for the discharge pipe is set, and a second optimal discharge slurry concentration range of the thickener is determined based on the minimum cleaning cycle of the discharge pipe, specifically including:
[0024] Determine the relationship between the cleaning cycle of the discharge pipe and the concentration of the thickener's output slurry;
[0025] Based on the relationship between the cleaning cycle of the discharge pipe and the concentration of the thickener's output slurry, as well as the minimum cleaning cycle of the discharge pipe, the second optimal range of the thickener's output slurry concentration is determined.
[0026] In some embodiments, the relationship between the cleaning cycle of the discharge pipe and the concentration of the thickener discharge slurry is as follows:
[0027] T=b1C 2 +b2C+b3
[0028] Where T is the cleaning cycle of the discharge pipe, C is the concentration of the slurry discharged from the thickener, and b1 to b3 are constants.
[0029] In some embodiments, the concentration of the thickener feed slurry, the density of the thickener feed slurry, the effective volume of the thickener, the discharge rate, and the amount of flocculant added are obtained. Based on the concentration of the thickener feed slurry, the density of the thickener feed slurry, the effective volume of the thickener, the discharge rate, and the amount of flocculant added, a third optimal range of discharge slurry concentration for the thickener is determined, specifically including the following steps:
[0030] Obtain the concentration of the feed slurry to the thickener, the density of the feed slurry to the thickener, the effective volume of the thickener, and the discharge rate. Treat the concentration of the discharge slurry to the thickener as an unknown quantity, and calculate the relationship between the maximum effective settling time of the thickener and the concentration of the discharge slurry to the thickener.
[0031] Obtain the amount of flocculant added, treat the concentration of the slurry discharged from the thickener as an unknown quantity, and calculate the relationship between the effective settling time of the thickener and the concentration of the slurry discharged from the thickener.
[0032] Based on the fact that the maximum effective settling time of the thickener is greater than or equal to the effective settling time of the thickener, the third optimal range of discharge slurry concentration for the thickener is obtained.
[0033] In some embodiments, the specific formula for calculating the relationship between the maximum effective settling time of the thickener and the concentration of the thickener discharge slurry is as follows:
[0034]
[0035] Among them, t max C1 is the maximum effective settling time of the thickener, ρ1 is the feed slurry concentration of the thickener, C is the feed slurry density of the thickener, ρ2 is the discharge slurry concentration of the thickener, V is the effective volume of the thickener, and G is the discharge rate.
[0036] In some embodiments, the formula for calculating the relationship between the effective settling time of the thickener and the concentration of the thickener discharge slurry is as follows:
[0037] C = At γ
[0038] Where t is the effective settling time of the thickener, C is the concentration of the slurry discharged from the thickener, and A and γ are constants, with γ determined by the amount of flocculant added.
[0039] The present invention also provides a system for determining the optimal discharge slurry concentration of a thickener, comprising:
[0040] A viscosity control module is used to set the maximum viscosity of the slurry and determine the first optimal discharge slurry concentration range of the thickener based on the maximum viscosity of the slurry.
[0041] The descaling cycle control module is used to set the minimum descaling cycle of the discharge pipe and determine the second optimal discharge slurry concentration range of the thickener based on the minimum descaling cycle of the discharge pipe.
[0042] A settling rate control module is used to acquire the concentration of the thickener feed slurry, the density of the thickener feed slurry, the effective volume of the thickener, the discharge rate, and the amount of flocculant added. Based on these parameters, it determines the third optimal range of discharge slurry concentration for the thickener.
[0043] The integrated control module is used to determine the optimal discharge slurry concentration range of the thickener based on the first optimal discharge slurry concentration range, the second optimal discharge slurry concentration range, and the third optimal discharge slurry concentration range.
[0044] The present invention also provides a computer-readable storage medium storing one or more programs that can be executed by one or more processors to implement the steps in the method for determining the optimal discharge slurry concentration of the thickener.
[0045] Compared with the prior art, the beneficial effects of the technical solution proposed in this invention are as follows: by controlling the viscosity of the discharge slurry, controlling the scaling cycle, and controlling the effective settling time, the concentration of the discharge slurry of the thickener is constrained from three aspects, and the optimal range of discharge slurry concentration of the thickener is finally obtained. This can prevent problems such as high slurry viscosity, large pumping load, excessively short scaling cycle of the discharge pipe, and excessively long settling time leading to slurry overflow caused by unsuitable discharge slurry concentration, and can bring about the greatest production efficiency and economic benefits. Attached Figure Description
[0046] Figure 1 This is a schematic flowchart of an embodiment of the method for determining the optimal discharge slurry concentration of a thickener provided by the present invention;
[0047] Figure 2 yes Figure 1A flowchart illustrating step S1;
[0048] Figure 3 yes Figure 1 A flowchart illustrating step S2;
[0049] Figure 4 yes Figure 1 A flowchart illustrating step S3;
[0050] Figure 5 This is a schematic diagram of an embodiment of the system for determining the optimal discharge slurry concentration of a thickener provided by the present invention. Detailed Implementation
[0051] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.
[0052] Please refer to Figure 1 This invention provides a method for determining the optimal discharge slurry concentration of a thickener, comprising the following steps:
[0053] S1. Set the maximum viscosity of the slurry, and determine the first optimal discharge slurry concentration range of the thickener based on the maximum viscosity of the slurry.
[0054] Please refer to Figure 2 The specific method for determining the first optimal discharge slurry concentration range of a thickener based on the highest viscosity of the slurry includes the following steps:
[0055] S11. Determine the relationship between slurry viscosity and thickener discharge slurry concentration;
[0056] S12. Based on the relationship between the slurry viscosity and the slurry concentration discharged from the thickener, as well as the maximum viscosity of the slurry, determine the first optimal range of slurry concentration discharged from the thickener.
[0057] Based on theoretical research and empirical observation, when the composition and particle size distribution are stable, the relationship between slurry viscosity and thickener discharge slurry concentration is as follows:
[0058] η = a1C + a2C 2 +a3C 3 +a4 (1)
[0059] Where η is the viscosity of the thickener slurry, C is the concentration of the thickener slurry, and a1 to a4 are constants.
[0060] For pumping facilities, the lower the viscosity of the thickener slurry, the better. While ensuring leaching reaction efficiency, optimizing fluidity reduces the pumping load. The maximum viscosity of the slurry can be set according to actual needs. In this embodiment, the maximum viscosity of the slurry is set to η.max Then we have:
[0061] η≤η max (2)
[0062] By combining equations (1) and (2), we can obtain the range of the concentration C of the thickener's output slurry, which is the first optimal range of the thickener's output slurry concentration.
[0063] S2. Set the minimum cleaning cycle of the discharge pipe, and determine the second optimal discharge slurry concentration range of the thickener based on the minimum cleaning cycle of the discharge pipe.
[0064] Please refer to Figure 3 Set the minimum cleaning cycle for the discharge pipe, and determine the second optimal discharge slurry concentration range of the thickener based on the minimum cleaning cycle of the discharge pipe, specifically including:
[0065] S21. Determine the relationship between the cleaning cycle of the discharge pipe and the concentration of the slurry discharged from the thickener;
[0066] S22. Based on the relationship between the cleaning cycle of the discharge pipe and the concentration of the thickener's output slurry, as well as the minimum cleaning cycle of the discharge pipe, determine the second optimal range of the thickener's output slurry concentration.
[0067] The relationship between the cleaning cycle of the discharge pipe and the concentration of the thickener's output slurry is as follows:
[0068] T=b1C 2 +b2C+b3 (3)
[0069] Where T is the cleaning cycle of the discharge pipe, C is the concentration of the slurry discharged from the thickener, and b1 to b3 are constants.
[0070] Step S2 primarily considers the scaling problem in the discharge pipe caused by the increased slurry concentration. Scaling in the discharge pipe affects the unit's operating efficiency, therefore, regular cleaning of the discharge pipe is necessary. The higher the slurry concentration, the shorter the cleaning cycle of the discharge pipe. The minimum cleaning cycle of the discharge pipe can be determined based on actual conditions. In this embodiment, the minimum cleaning cycle of the discharge pipe is set to T. min Then we have:
[0071] T≥T min (4)
[0072] By combining equations (3) and (4), we can obtain the range of the concentration C of the thickener's output slurry, which is the second optimal range of the thickener's output slurry concentration.
[0073] S3. Obtain the concentration of the feed slurry to the thickener, the density of the feed slurry to the thickener, the effective volume of the thickener, the discharge rate, and the amount of flocculant added. Based on the concentration of the feed slurry to the thickener, the density of the feed slurry to the thickener, the effective volume of the thickener, the discharge rate, and the amount of flocculant added, determine the third optimal range of the discharge slurry concentration of the thickener.
[0074] Since the relevant parameters of the specified high-efficiency thickener are fixed (effective volume, ultimate load, deep cone radius, cone angle, etc.), during stable production, the thickener operates continuously. Based on a relatively stable target discharge slurry concentration and discharge rate, the maximum effective settling time of the slurry is fixed. If the actual effective settling time of the slurry is greater than the maximum effective settling time, the slurry discharge rate inside the thickener will be too low, leading to slurry filling the thickener and overflowing. To avoid this, the actual effective settling time of the slurry must be less than or equal to the maximum effective settling time. Both the actual and maximum effective settling times are related to the discharge slurry concentration. By expressing both the actual and maximum effective settling times through the discharge slurry concentration and substituting them into the inequality, the range of the discharge slurry concentration can be obtained.
[0075] The specific process is as follows:
[0076] Please refer to Figure 4 The process involves obtaining the concentration of the feed slurry to the thickener, the density of the feed slurry to the thickener, the effective volume of the thickener, the discharge rate, and the amount of flocculant added. Based on these parameters, the third optimal range of discharge slurry concentration for the thickener is determined. This process includes the following steps:
[0077] S31. Obtain the concentration of the thickener feed slurry, the density of the thickener feed slurry, the effective volume of the thickener, and the discharge rate. Using the concentration of the thickener discharge slurry as an unknown, calculate the relationship between the maximum effective settling time of the thickener and the concentration of the thickener discharge slurry.
[0078] The specific formula for calculating the relationship between the maximum effective settling time of the thickener and the concentration of the thickener's output slurry is as follows:
[0079]
[0080] Among them, t max C1 is the maximum effective settling time of the thickener, ρ1 is the feed slurry concentration of the thickener, C is the feed slurry density of the thickener, ρ2 is the discharge slurry concentration of the thickener, V is the effective volume of the thickener, and G is the discharge rate.
[0081] In formula (5), the density ρ2 of the thickener output slurry can be calculated based on the concentration C1 of the thickener feed slurry, the density ρ1 of the thickener feed slurry, the concentration C of the thickener output slurry, and the density of water.
[0082] S32. Obtain the amount of flocculant added, take the concentration of the slurry discharged from the thickener as an unknown quantity, and calculate the relationship between the effective settling time of the thickener and the concentration of the slurry discharged from the thickener.
[0083] The formula for calculating the relationship between the effective settling time of the thickener and the concentration of the thickener's output slurry is as follows:
[0084] C = At γ (6)
[0085] Where t is the effective settling time of the thickener, C is the concentration of the slurry discharged from the thickener, and A and γ are both constants, with γ determined by the amount of flocculant added and A determined by the composition and particle size distribution of the slurry.
[0086] S33. Based on the fact that the maximum effective settling time of the thickener is greater than or equal to the effective settling time of the thickener, the third optimal discharge slurry concentration range of the thickener is obtained.
[0087] The maximum effective settling time of the thickener is greater than or equal to the effective settling time of the thickener, that is:
[0088] t≤t max (7)
[0089] By combining equations (5), (6), and (7), the range of the concentration C of the thickener's output slurry can be obtained, which is the third optimal range of the thickener's output slurry concentration.
[0090] S4. Determine the optimal discharge slurry concentration range of the thickener based on the first optimal discharge slurry concentration range, the second optimal discharge slurry concentration range, and the third optimal discharge slurry concentration range.
[0091] In this embodiment, the optimal discharge slurry concentration range of the thickener is the union of the first optimal discharge slurry concentration range, the second optimal discharge slurry concentration range, and the third optimal discharge slurry concentration range. It should be understood that, under the condition of satisfying the first optimal discharge slurry concentration range, the second optimal discharge slurry concentration range, and the third optimal discharge slurry concentration range, a larger discharge slurry concentration can be selected as much as possible in order to improve mineral leaching efficiency.
[0092] Once the discharge slurry concentration is determined, the slurry concentration at the thickener outlet is monitored. When the concentration of the slurry discharged from the thickener outlet reaches the specified discharge slurry concentration, the discharge valve at the thickener outlet is opened. Subsequently, the discharge slurry concentration is kept stable by controlling the feed rate and discharge rate.
[0093] Please refer to Figure 5 The present invention also provides a system for determining the optimal discharge slurry concentration of a thickener, comprising:
[0094] Viscosity control module 100, the viscosity control module 100 is used to set the maximum viscosity of the slurry, and determine the first optimal discharge slurry concentration range of the thickener based on the maximum viscosity of the slurry;
[0095] The descaling cycle control module 200 is used to set the minimum descaling cycle of the discharge pipe and determine the second optimal discharge slurry concentration range of the thickener based on the minimum descaling cycle of the discharge pipe.
[0096] A settling rate control module 300 is used to acquire the concentration of the thickener feed slurry, the density of the thickener feed slurry, the effective volume of the thickener, the discharge rate, and the amount of flocculant added. Based on these parameters, it determines a third optimal range for the thickener's discharge slurry concentration.
[0097] The integrated control module 400 is used to determine the optimal discharge slurry concentration range of the thickener based on the first optimal discharge slurry concentration range, the second optimal discharge slurry concentration range, and the third optimal discharge slurry concentration range of the thickener.
[0098] The present invention also provides a computer-readable storage medium, characterized in that the computer-readable storage medium stores one or more programs, which can be executed by one or more processors to implement the steps in the method for determining the optimal discharge slurry concentration of the thickener.
[0099] In summary, the technical solution provided by this invention constrains the discharge slurry concentration of the thickener from three aspects: discharge slurry viscosity control, scale removal cycle control, and effective settling time control. This ultimately yields the optimal discharge slurry concentration range for the thickener, preventing problems such as high slurry viscosity, high pumping load, excessively short scale removal cycle in the discharge pipe, and excessively long settling time leading to slurry overflow. This results in maximum production efficiency and economic benefits.
[0100] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.
Claims
1. A method for determining the optimal discharge slurry concentration of a thickener, characterized in that, The application relates to a method for determining the optimal discharge slurry concentration of a thickener. The method comprises the following steps: setting the maximum slurry viscosity, determining the first optimal discharge slurry concentration range of the thickener according to the maximum slurry viscosity; setting the minimum cleaning period of the discharge pipe, determining the second optimal discharge slurry concentration range of the thickener according to the minimum cleaning period of the discharge pipe; obtaining the thickener feed slurry concentration, the thickener feed slurry density, the effective volume of the thickener, the discharge amount and the flocculant addition amount, determining the third optimal discharge slurry concentration range of the thickener according to the thickener feed slurry concentration, the thickener feed slurry density, the effective volume of the thickener, the discharge amount and the flocculant addition amount; determining the optimal discharge slurry concentration range of the thickener according to the first optimal discharge slurry concentration range, the second optimal discharge slurry concentration range and the third optimal discharge slurry concentration range of the thickener; wherein the specific method for determining the first optimal discharge slurry concentration range of the thickener according to the maximum slurry viscosity comprises the following steps: determining the relationship between the slurry viscosity and the thickener discharge slurry concentration; determining the first optimal discharge slurry concentration range of the thickener according to the relationship between the slurry viscosity and the thickener discharge slurry concentration and the maximum slurry viscosity; determining the second optimal discharge slurry concentration range of the thickener according to the minimum cleaning period of the discharge pipe, specifically comprising the following steps: determining the relationship between the cleaning period of the discharge pipe and the thickener discharge slurry concentration; determining the second optimal discharge slurry concentration range of the thickener according to the relationship between the cleaning period of the discharge pipe and the thickener discharge slurry concentration and the minimum cleaning period of the discharge pipe; determining the third optimal discharge slurry concentration range of the thickener according to the thickener feed slurry concentration, the thickener feed slurry density, the effective volume of the thickener, the discharge amount and the flocculant addition amount, specifically comprising the following steps: obtaining the thickener feed slurry concentration, the thickener feed slurry density, the effective volume of the thickener and the discharge amount, taking the thickener discharge slurry concentration as an unknown quantity, and calculating the relationship between the maximum effective settling time of the thickener and the thickener discharge slurry concentration; obtaining the flocculant addition amount, taking the thickener discharge slurry concentration as an unknown quantity, and calculating the relationship between the effective settling time of the thickener and the thickener discharge slurry concentration; 2. The method of determining optimum discharge pulp density of a thickener as claimed in claim 1 wherein, determining the third optimal discharge slurry concentration range of the thickener according to the maximum effective settling time of the thickener being greater than or equal to the effective settling time of the thickener. η = a1C + a2C + a3C + a4 2 + a4 3 + a4 The relationship between the slurry viscosity and the thickener discharge slurry concentration is as follows:
3. The method of determining optimum discharge pulp density of a thickener as claimed in claim 1, wherein, wherein C is the thickener discharge slurry concentration, and a1-a4 are constants. T = b1C 2 + b2C + b3 The relationship between the cleaning period of the discharge pipe and the thickener discharge slurry concentration is as follows:
4. The method of determining optimum discharge pulp density of a thickener as claimed in claim 1, wherein, wherein T is the cleaning period of the discharge pipe, C is the thickener discharge slurry concentration, and b1-b3 are constants. where t is the maximum effective settling time of the thickener, C1 is the feed pulp concentration of the thickener, p1 is the feed pulp density of the thickener, C is the discharge pulp concentration of the thickener, p2 is the discharge pulp density of the thickener, V is the effective volume of the thickener, and G is the discharge rate. max where t is the maximum effective settling time of the thickener, C1 is the feed pulp concentration of the thickener, p1 is the feed pulp density of the thickener, C is the discharge pulp concentration of the thickener, p2 is the discharge pulp density of the thickener, V is the effective volume of the thickener, and G is the discharge rate.
5. The method of determining optimum discharge pulp density of a thickener as claimed in claim 1 wherein, The specific formula for calculating the relationship between the maximum effective settling time of the thickener and the thickener discharge slurry concentration is as follows: C = at γ The formula for calculating the relationship between the effective settling time of the thickener and the thickener discharge slurry concentration is as follows:
6. A system for determining an optimum discharge pulp concentration for a thickener, the system comprising: wherein t is the effective settling time of the thickener, C is the thickener discharge slurry concentration, A and gamma are constants, and gamma is determined by the flocculant addition amount. The application of the method for determining the optimal discharge slurry concentration of the thickener according to any one of claims 1-5 comprises: a viscosity control module configured to set a maximum viscosity of the slurry and determine a first optimal discharge slurry concentration range of the thickener according to the maximum viscosity of the slurry; a descaling cycle control module configured to set a minimum descaling cycle of the discharge pipe and determine a second optimal discharge slurry concentration range of the thickener according to the minimum descaling cycle of the discharge pipe; a settling rate control module configured to obtain a thickener feed slurry concentration, a thickener feed slurry density, a thickener effective volume, a discharge amount and a flocculant addition amount, and determine a third optimal discharge slurry concentration range of the thickener according to the thickener feed slurry concentration, the thickener feed slurry density, the thickener effective volume, the discharge amount and the flocculant addition amount; and a comprehensive control module configured to determine an optimal discharge slurry concentration range of the thickener according to the first optimal discharge slurry concentration range, the second optimal discharge slurry concentration range and the third optimal discharge slurry concentration range of the thickener.
7. A computer readable storage medium characterized in that, The computer readable storage medium stores one or more programs executable by one or more processors to implement the steps of the method for determining an optimal discharge slurry concentration of a thickener according to any one of claims 1-5.
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