A control method, device and equipment of a large-flow-ratio mixing clarifier

Abstract

The application provides a control method, device and equipment of a large flow ratio mixing clarifier. The control method of the large flow ratio mixing clarifier comprises the following steps: acquiring a first opening signal, a second opening signal and a stirring treatment signal respectively; according to the first opening signal, the water phase inlet of the large flow ratio mixing clarifier is controlled to be opened, so that the water phase feedstock flows into the large flow ratio mixing clarifier; according to the second opening signal, the organic phase inlet of the large flow ratio mixing clarifier is controlled to be opened, so that the organic phase feedstock flows into the large flow ratio mixing clarifier; and according to the stirring treatment signal, the pump wheel is controlled to stir and treat the organic phase feedstock and the water phase feedstock, so that the target element in the water phase feedstock is obtained. The scheme of the application can realize the stable and rapid establishment of the interface of the large flow ratio mixing clarifier, and reduce the occurrence of phase inversion.

Description

Technical Field

[0001] This invention relates to the field of nuclear fuel reprocessing technology, and in particular to a control method, apparatus and equipment for a high flow ratio mixing and clarification tank. Background Technology

[0002] The mixing and clarification tank, as a liquid-liquid extraction device, is currently used in the domestic spent fuel reprocessing field. The mixing and clarification tank consists of multiple stages connected in series. Each stage comprises a mixing chamber and a clarification chamber. The clarification chamber has a mixing chamber baffle and a grid at the front end, and an organic phase chamber and an aqueous phase chamber at the rear. For liquids with large flow ratios, a reflux structure is used. During operation, the two phases enter the submersible chamber from the aqueous phase inlet and the organic phase inlet, respectively, for pre-mixing. Under the suction force of the pump impeller, the two phases are drawn into the mixing chamber for thorough mixing and contact. Relying on the shear force of the pump impeller, the mixed phase enters the clarification chamber through the baffle. The mixed phase clarifies and separates within a certain time. At the end of the clarification chamber, the aqueous phase enters the aqueous phase chamber through the aqueous phase baffle and the heavy phase weir, while the organic phase enters the organic phase chamber through the light phase weir. They then enter the next and previous stage mixing chambers respectively through square holes below their respective chambers.

[0003] In actual production operations, it was found that the traditional high flow ratio mixing and clarifying tank feeding method requires a long time to establish the interface. In addition, due to the large flow rate of the liquid, if the liquid is fed at the designed flow rate, the inlet flow rate of the aqueous phase will surge, causing phase reversal, which in turn affects the establishment of the interface. Summary of the Invention

[0004] The technical problem to be solved by this invention is how to provide a control method for a high flow ratio mixing and clarification tank.

[0005] The device and equipment enable the stable and rapid establishment of the interface in a high-flow-ratio mixing and clarification tank, and reduce the occurrence of phase inversion.

[0006] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0007] A method for controlling a high flow ratio mixing and clarification tank, the method comprising:

[0008] The first start signal, the second start signal, and the stirring signal are acquired respectively;

[0009] According to the first opening signal, the water phase inlet of the high flow ratio mixing and clarification tank is opened, so that the water phase liquid flows into the high flow ratio mixing and clarification tank;

[0010] According to the second opening signal, the organic phase inlet of the high flow ratio mixing and clarification tank is opened, so that the organic phase liquid flows into the high flow ratio mixing and clarification tank;

[0011] According to the stirring signal, the pump impeller is controlled to stir the organic phase liquid and the aqueous phase liquid to obtain the target element in the aqueous phase liquid.

[0012] Optionally, before controlling the opening of the aqueous phase inlet of the high-flow-ratio mixing and clarification tank according to the first opening signal, so that the aqueous phase feed liquid flows into the high-flow-ratio mixing and clarification tank, the following steps are also included:

[0013] The high flow ratio mixing and clarification tank is pretreated;

[0014] The pretreatment includes water sealing and tank filling.

[0015] Optionally, according to the first activation signal, controlling the opening of the aqueous phase inlet of the high-flow-ratio mixing and clarification tank, so that the aqueous phase feed liquid flows into the high-flow-ratio mixing and clarification tank, includes:

[0016] Based on the first final stage start signal, the final stage water phase inlet of the high flow ratio mixing and clarification tank is opened, so that the detergent flows into the high flow ratio mixing and clarification tank from the final stage water phase inlet.

[0017] Optionally, according to the second opening signal, controlling the opening of the organic phase inlet of the high-flow-ratio mixing and clarification tank, so that the organic phase feed liquid flows into the high-flow-ratio mixing and clarification tank, includes:

[0018] According to the second opening signal, the first organic phase inlet of the high flow ratio mixing and clarification tank is opened, so that the extractant flows into the high flow ratio mixing and clarification tank from the first organic phase inlet.

[0019] Optionally, according to the second opening signal, the first-stage organic phase inlet of the high-ratio mixing and clarification tank is opened, so that after the extractant flows into the high-ratio mixing and clarification tank from the first-stage organic phase inlet, the following steps are taken:

[0020] Based on the first intermediate stage opening signal, the intermediate stage aqueous phase inlet of the high flow ratio mixing and clarification tank is opened, so that the extractable liquid flows into the high flow ratio mixing and clarification tank from the intermediate stage aqueous phase inlet.

[0021] Optionally, the liquid to be extracted is flowed into the high flow ratio mixing and clarification tank in sequence according to a first preset ratio and a second preset ratio.

[0022] Optionally, a first preset time interval is set between the flow of the extractant into the high-ratio mixing and clarification tank and the flow of the extractant into the high-ratio mixing and clarification tank.

[0023] The present invention also provides a control device for a high flow ratio mixing and clarification tank, the device comprising:

[0024] The controller is used to acquire a first start signal, a second start signal, and a stirring signal respectively; and according to the first start signal, to control the opening of the aqueous phase inlet of the high-flow-ratio mixing and clarification tank, so that the aqueous phase feed liquid flows into the high-flow-ratio mixing and clarification tank; according to the second start signal, to control the opening of the organic phase inlet of the high-flow-ratio mixing and clarification tank, so that the organic phase feed liquid flows into the high-flow-ratio mixing and clarification tank; and according to the stirring signal, to control the pump impeller to stir the organic phase feed liquid and the aqueous phase feed liquid to obtain the target element in the aqueous phase feed liquid.

[0025] The present invention also provides a control device, comprising: a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method described above.

[0026] The present invention also provides a readable storage medium on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described above.

[0027] The above-described solution of the present invention has at least the following beneficial effects:

[0028] The above-described solution of the present invention acquires a first activation signal, a second activation signal, and a stirring signal respectively; according to the first activation signal, it controls the opening of the aqueous phase inlet of the high-flow-ratio mixing and clarification tank, allowing the aqueous phase feed liquid to flow into the high-flow-ratio mixing and clarification tank; according to the second activation signal, it controls the opening of the organic phase inlet of the high-flow-ratio mixing and clarification tank, allowing the organic phase feed liquid to flow into the high-flow-ratio mixing and clarification tank; according to the stirring signal, it controls the pump impeller to stir the organic phase feed liquid and the aqueous phase feed liquid, thereby obtaining the target element in the aqueous phase feed liquid. This achieves stable and rapid establishment of the interface in the high-flow-ratio mixing and clarification tank and reduces the occurrence of phase inversion. Attached Figure Description

[0029] Figure 1 This is a schematic flowchart of the control method for a high flow ratio mixing and clarification tank according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the three-stream feed of the high flow ratio mixing and clarification tank according to an embodiment of the present invention;

[0031] Figure 3 This is another specific implementation flowchart of the control method for the high flow ratio mixing and clarification tank in this invention. Detailed Implementation

[0032] Exemplary embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the invention and to fully convey the scope of the invention to those skilled in the art.

[0033] like Figure 1 As shown, an embodiment of the present invention provides a control method for a high flow ratio mixing and clarification tank, the method comprising:

[0034] Step 11: Acquire the first start signal, the second start signal, and the stirring signal respectively;

[0035] Step 12: According to the first opening signal, control the opening of the water phase inlet of the high flow ratio mixing and clarification tank, so that the water phase liquid flows into the high flow ratio mixing and clarification tank.

[0036] Step 13: According to the second opening signal, control the opening of the organic phase inlet of the high flow ratio mixing and clarification tank, so that the organic phase liquid flows into the high flow ratio mixing and clarification tank;

[0037] Step 14: According to the stirring signal, control the pump wheel to stir the organic phase liquid and the aqueous phase liquid to obtain the target element in the aqueous phase liquid.

[0038] Here, by controlling the pump impeller to stir the organic phase liquid and the aqueous phase liquid, the mixing and mass transfer between the two phase liquids can be promoted, which helps to obtain the target element from the aqueous phase liquid.

[0039] In this embodiment of the present invention, the control method of the large flow ratio mixing and clarification tank can achieve stable and rapid establishment of the interface of the large flow ratio mixing and clarification tank and reduce the occurrence of phase reversal.

[0040] It should be noted that the aqueous phase feed solution may include: detergent and the feed solution to be extracted; the feed solution to be extracted may include: a mixture of uranium, plutonium, neptunium and fragmented elements; the target element may be uranium.

[0041] The organic phase feed liquid may include a mixture of 30% TBP (tributyl phosphate) and kerosene.

[0042] In an optional embodiment of the present invention, prior to step 12, the following may be included:

[0043] Step A: Pre-treat the high flow ratio mixing and clarification tank;

[0044] The pretreatment includes water sealing and tank filling.

[0045] In this embodiment, by performing water sealing treatment on the high flow ratio mixing and clarification tank, it is possible to prevent the backflow or inversion of gas, liquid or solid particles in the pipes of the high flow ratio mixing and clarification tank, thereby ensuring the effect of material mixing and clarification.

[0046] By filling the high flow ratio mixing and clarification tank, the liquid consumed due to evaporation, leakage or during the processing can be replenished by adding an appropriate amount of processing liquid, thereby preventing the loss of the liquid in the high flow ratio mixing and clarification tank.

[0047] Specifically, the clarifier can be water-sealed by controlling the water seal pipeline for adding nitric acid; or it can be filled with an organic phase feed liquid, such as an extractant. In another optional embodiment of the present invention, step 12 may include:

[0048] Step 121: Based on the first final stage start signal, control the opening of the final stage aqueous phase inlet of the high-flow-ratio mixing and clarification tank, allowing detergent to flow into the high-flow-ratio mixing and clarification tank from the final stage aqueous phase inlet. Here, the flow rate of the detergent can be controlled within ±5% of a preset value. The preset value can be 89 L / h (liters per hour).

[0049] In this embodiment, by prioritizing the flow of the aqueous phase into the high-flow-ratio mixing and clarification tank, the interface is established when the displayed value of the final interface of the high-flow-ratio mixing and clarification tank reaches within ±5% of the preset value. This promotes the rapid establishment of the final interface of the high-flow-ratio mixing and clarification tank.

[0050] It should be noted that after filling the high-flow-ratio mixing and clarification tank, there is an organic phase liquid in the tank. It is necessary to close the first-stage aqueous phase outlet and open the last-stage organic phase outlet. This allows the organic phase liquid in the high-flow-ratio mixing and clarification tank to be flushed out of the tank through the last-stage organic phase outlet when the aqueous phase liquid flows into the tank from the last-stage inlet. This makes the interface data used to display the aqueous phase liquid level more accurate.

[0051] Specifically, after the stirring device in the high flow ratio mixing and clarification tank is turned on and water sealing and tank filling are performed, the detergent flows into the tank from the last stage of the high flow ratio mixing and clarification tank at a preset value of ±5%. As the detergent flows in, the two-phase media (extractant and detergent) from the last stage to the first stage of the high flow ratio mixing and clarification tank gradually stabilizes. When the last stage interface shows that it has reached more than half of the normal liquid level, the last stage interface and the first stage interface of the high flow ratio mixing and clarification tank are established.

[0052] In another optional embodiment of the present invention, step 13 may include:

[0053] Step 131: Based on the second activation signal, control the opening of the first-stage organic phase inlet of the high-flow-ratio mixing and clarification tank, allowing the extractant to flow into the high-flow-ratio mixing and clarification tank from the first-stage organic phase inlet. Here, the flow rate of the extractant can be controlled within ±5% of a preset value.

[0054] In this embodiment, by controlling the opening of the first-stage organic phase inlet of the high-flow-ratio mixing and clarification tank, the extractant flows into the high-flow-ratio mixing and clarification tank from the first-stage organic phase inlet. This ensures the rapid and stable establishment of each level of the interfaces in the high-flow-ratio mixing and clarification tank.

[0055] In another optional embodiment of the present invention, after step 131, the following may be included:

[0056] Step 132: According to the first intermediate stage opening signal, control the intermediate stage aqueous phase inlet of the high flow ratio mixing and clarification tank to open, so that the extractable liquid flows into the high flow ratio mixing and clarification tank from the intermediate stage aqueous phase inlet.

[0057] It should be noted that the time interval between the flow of the extractant into the high-flow-ratio mixing and clarification tank and the flow of the liquid to be extracted into the high-flow-ratio mixing and clarification tank is a first preset time; the first preset time can be 10 minutes.

[0058] In this embodiment, by controlling the opening of the intermediate-stage aqueous phase inlet of the high-flow-ratio mixing and clarification tank, the feed liquid to be extracted flows into the high-flow-ratio mixing and clarification tank from the intermediate-stage aqueous phase inlet. This ensures the rapid and stable establishment of each level of the interface in the high-flow-ratio mixing and clarification tank.

[0059] Specifically, based on the second activation signal, the first-stage organic phase inlet of the high-flow-ratio mixing and clarification tank is opened, allowing the extractant to flow into the high-flow-ratio mixing and clarification tank from the first-stage organic phase inlet. After the extractant feeding time reaches 10 minutes, the intermediate-stage aqueous phase inlet is opened, allowing the intermediate-stage aqueous phase feed liquid to flow into the high-flow-ratio mixing and clarification tank. This ensures the rapid and stable establishment of each stage interface in the high-flow-ratio mixing and clarification tank.

[0060] like Figure 2 As shown, the detergent flows into the high-ratio mixing and clarification tank from the final inlet, the extractant flows into the high-ratio mixing and clarification tank from the first inlet, and the liquid to be extracted flows into the high-ratio mixing and clarification tank from the intermediate inlet.

[0061] In another optional embodiment of the present invention, the liquid to be extracted is flowed into a high flow ratio mixing and clarification tank in sequence according to a first preset ratio and a second preset ratio.

[0062] In this embodiment, the feed liquid to be extracted first flows into the high-ratio mixing and clarification tank from the intermediate inlet at one-third of a preset value. After the feeding time reaches 15-20 minutes, it then flows into the high-ratio mixing and clarification tank from the intermediate inlet at two-thirds of the preset value. This step-feeding method for the organic phase feed liquid prevents phase inversion, thus ensuring the accuracy of the information displayed at each interface of the high-ratio mixing and clarification tank.

[0063] It should be noted that there is a second preset time interval between the flow of the extractable liquid according to the first preset ratio and the flow of the extractable liquid according to the second preset ratio; the first preset ratio can be one-third; the second preset ratio can be two-thirds; and the second preset time can be 15 to 20 minutes.

[0064] Specifically, the liquid to be extracted is controlled to flow into the high flow ratio mixing and clarifying tank sequentially at one-third and two-thirds of the preset flow rate from the intermediate inlet until the flow rate of the liquid to be extracted reaches the preset value and the feeding of the liquid to be extracted is completed.

[0065] like Figure 3 As shown, in another optional embodiment of the present invention, the specific implementation process of the control method for the high flow ratio mixing and clarification tank may include:

[0066] Turn on the agitator of the high flow ratio mixing and clarifying tank;

[0067] The water seal of the clarifier is achieved by controlling the water seal pipeline for adding nitric acid to the clarifier.

[0068] The clarifying tank is filled with an organic phase feed liquid, such as an extractant.

[0069] Close the first-stage aqueous phase outlet and open the last-stage organic phase outlet; this allows the extractant filling the tank to be flushed out of the high-ratio mixing and clarifying tank through the last-stage organic phase outlet when the detergent flows in.

[0070] According to the first final stage start signal, the final stage aqueous phase inlet of the high flow ratio mixing and clarification tank is opened, so that the detergent flows into the high flow ratio mixing and clarification tank from the final stage aqueous phase inlet; the detergent flow rate is controlled within a preset value of ±5%, so that the two-phase media (detergent and extractant) from the final stage to the first stage are stable.

[0071] Once the final interface of the high-flow-ratio mixing and clarification tank reaches within a preset value of ±5%, the first-stage organic phase inlet of the high-flow-ratio mixing and clarification tank is opened according to the second opening signal, so that the extractant flows into the high-flow-ratio mixing and clarification tank from the first-stage organic phase inlet; the extractant flow rate is controlled within a range of ±5%.

[0072] After the extractant feeding time reaches 10 minutes, the intermediate stage aqueous phase inlet of the high-ratio mixing and clarification tank is opened according to the first intermediate stage opening signal, so that the extractant liquid flows into the high-ratio mixing and clarification tank from the intermediate stage aqueous phase inlet at a flow rate of one-third ± five percent.

[0073] After the extraction liquid has been fed for 15 to 20 minutes, the intermediate stage aqueous phase inlet of the high flow ratio mixing and clarification tank is opened according to the first intermediate stage opening signal, so that the extraction liquid flows into the high flow ratio mixing and clarification tank from the intermediate stage aqueous phase inlet at a flow rate of two-thirds ± five percent.

[0074] After adjustment, once the feeding time of the extraction liquid reaches 15 to 20 minutes, adjust the flow rate of the extraction liquid to within ±5% of the preset flow rate. The feeding of the high flow ratio mixing and clarification tank is then complete.

[0075] It should be noted that the flow rate deviation of each stream of the extractable liquid can be controlled within ±5%.

[0076] In the above embodiments of the present invention, the control method for the high-flow-ratio mixing and clarification tank, after completing the stirring device activation, water sealing treatment, and tank filling treatment, first controls the feeding of the aqueous phase liquid, and then controls the feeding of the organic phase liquid. This improves the speed of interface establishment at each level in the high-flow-ratio mixing and clarification tank while ensuring the stability of interface establishment at each level. Specifically, the feeding sequence of the three liquids in the high-flow-ratio mixing and clarification tank is as follows: detergent first, then extractant, and finally the liquid to be extracted. This enables the rapid establishment of interfaces at each level in the high-flow-ratio mixing and clarification tank, while ensuring the stability of these interfaces and preventing damage, thus ensuring stable operation of each liquid in the tank and preventing liquid loss.

[0077] Embodiments of the present invention also provide a control device for a high flow ratio mixing and clarification tank, the device comprising:

[0078] The controller is used to acquire a first start signal, a second start signal, and a stirring signal respectively; and according to the first start signal, to control the opening of the aqueous phase inlet of the high-flow-ratio mixing and clarification tank, so that the aqueous phase feed liquid flows into the high-flow-ratio mixing and clarification tank; according to the second start signal, to control the opening of the organic phase inlet of the high-flow-ratio mixing and clarification tank, so that the organic phase feed liquid flows into the high-flow-ratio mixing and clarification tank; and according to the stirring signal, to control the pump impeller to stir the organic phase feed liquid and the aqueous phase feed liquid to obtain the target element in the aqueous phase feed liquid.

[0079] Optionally, before controlling the opening of the aqueous phase inlet of the high-flow-ratio mixing and clarification tank according to the first opening signal, so that the aqueous phase feed liquid flows into the high-flow-ratio mixing and clarification tank, the following steps are also included:

[0080] The high flow ratio mixing and clarification tank is pretreated;

[0081] The pretreatment includes water sealing and tank filling.

[0082] Optionally, according to the first activation signal, controlling the opening of the aqueous phase inlet of the high-flow-ratio mixing and clarification tank, so that the aqueous phase feed liquid flows into the high-flow-ratio mixing and clarification tank, includes:

[0083] Based on the first final stage start signal, the final stage water phase inlet of the high flow ratio mixing and clarification tank is opened, so that the detergent flows into the high flow ratio mixing and clarification tank from the final stage water phase inlet.

[0084] Optionally, according to the second opening signal, controlling the opening of the organic phase inlet of the high-flow-ratio mixing and clarification tank, so that the organic phase feed liquid flows into the high-flow-ratio mixing and clarification tank, includes:

[0085] According to the second opening signal, the first organic phase inlet of the high flow ratio mixing and clarification tank is opened, so that the extractant flows into the high flow ratio mixing and clarification tank from the first organic phase inlet.

[0086] Optionally, according to the second opening signal, the first-stage organic phase inlet of the high-ratio mixing and clarification tank is opened, so that after the extractant flows into the high-ratio mixing and clarification tank from the first-stage organic phase inlet, the following steps are taken:

[0087] Based on the first intermediate stage opening signal, the intermediate stage aqueous phase inlet of the high flow ratio mixing and clarification tank is opened, so that the extractable liquid flows into the high flow ratio mixing and clarification tank from the intermediate stage aqueous phase inlet.

[0088] Optionally, the liquid to be extracted is flowed into the high flow ratio mixing and clarification tank in sequence according to a first preset ratio and a second preset ratio.

[0089] Optionally, a first preset time interval is set between the time the extractant enters the high-flow-ratio mixing and clarification tank and the time the liquid to be extracted enters the high-flow-ratio mixing and clarification tank.

[0090] It should be noted that this device is the same as the method described above. All implementations in the above method embodiments are applicable to the embodiments of this device and can achieve the same technical effect.

[0091] Embodiments of the present invention also provide a computing device, including: a processor and a memory storing a computer program, wherein the computer program, when executed by the processor, performs the method described above. All implementations in the above method embodiments are applicable to this embodiment and can achieve the same technical effects.

[0092] Embodiments of the present invention also provide a computer-readable storage medium including instructions that, when executed on a computer, cause the computer to perform the method described above. All implementations in the above method embodiments are applicable to this embodiment and can achieve the same technical effects.

[0093] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0094] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0095] In the embodiments provided by this invention, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0096] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0097] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0098] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, essentially, or the part that contributes to the prior art, or a portion of the 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 to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0099] Furthermore, it should be noted that in the apparatus and method of the present invention, it is obvious that the components or steps can be decomposed and / or recombined. These decompositions and / or recombinations should be considered equivalent solutions of the present invention. Moreover, the steps performing the above-described series of processes can naturally be executed in the order described, but are not necessarily required to be executed in chronological order; some steps can be executed in parallel or independently of each other. Those skilled in the art will understand that all or any step or component of the method and apparatus of the present invention can be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or a combination thereof. This is something that those skilled in the art can achieve by using their basic programming skills after reading the description of the present invention.

[0100] Therefore, the object of the present invention can also be achieved by running a program or a set of programs on any computing device. The computing device can be a known general-purpose device. Therefore, the object of the present invention can also be achieved simply by providing a program product containing program code implementing the method or apparatus. That is, such a program product also constitutes the present invention, and the storage medium storing such a program product also constitutes the present invention. Obviously, the storage medium can be any known storage medium or any storage medium developed in the future. It should also be noted that in the apparatus and method of the present invention, it is obvious that the components or steps can be decomposed and / or recombined. These decompositions and / or recombinations should be considered equivalent to the present invention. Furthermore, the steps performing the above series of processes can naturally be performed in the order described, but are not necessarily required to be performed in chronological order. Some steps can be performed in parallel or independently of each other.

[0101] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A control method for a high flow ratio mixing and clarification tank, characterized in that, The method includes: The first start signal, the second start signal, and the stirring signal are acquired respectively; According to the first opening signal, the water phase inlet of the high flow ratio mixing and clarification tank is opened, so that the water phase liquid flows into the high flow ratio mixing and clarification tank; According to the second opening signal, the organic phase inlet of the high flow ratio mixing and clarification tank is opened, so that the organic phase liquid flows into the high flow ratio mixing and clarification tank; According to the stirring signal, the pump wheel is controlled to stir the organic phase liquid and the aqueous phase liquid to obtain the target element in the aqueous phase liquid; The process includes, before controlling the opening of the aqueous phase inlet of the high-ratio mixing and clarification tank according to the first opening signal, so that the aqueous phase feed liquid flows into the high-ratio mixing and clarification tank, the following steps are also included: The high flow ratio mixing and clarification tank is pretreated; The pretreatment includes: water sealing and tank filling; specifically, the clarifier is water-sealed by controlling the water seal pipeline for adding nitric acid to the clarifier; the clarifier is filled with an organic phase feed liquid, wherein the organic phase feed liquid is an extractant; according to the first opening signal, the aqueous phase inlet of the high-flow-ratio mixing clarifier is opened, allowing the aqueous phase feed liquid to flow into the high-flow-ratio mixing clarifier, including: According to the first final stage opening signal, the final stage water phase inlet of the high flow ratio mixing and clarification tank is opened, so that the detergent flows into the high flow ratio mixing and clarification tank from the final stage water phase inlet; specifically, after the stirring device in the high flow ratio mixing and clarification tank is turned on and water sealing and tank filling are performed, the detergent flows into the tank body from the final stage of the high flow ratio mixing and clarification tank at a preset value of ±5%. Specifically, according to the second opening signal, controlling the opening of the organic phase inlet of the high-flow-ratio mixing and clarification tank to allow the organic phase feed liquid to flow into the high-flow-ratio mixing and clarification tank includes: according to the second opening signal, controlling the opening of the first-stage organic phase inlet of the high-flow-ratio mixing and clarification tank to allow the extractant to flow into the high-flow-ratio mixing and clarification tank from the first-stage organic phase inlet; the flow rate of the extractant is controlled within ±5% of a preset value; According to the second opening signal, the first-stage organic phase inlet of the high-ratio mixing and clarification tank is opened, so that after the extractant flows into the high-ratio mixing and clarification tank from the first-stage organic phase inlet, the process includes: According to the first intermediate stage opening signal, the intermediate stage aqueous phase inlet of the high flow ratio mixing and clarification tank is opened, so that the extractant flows into the high flow ratio mixing and clarification tank from the intermediate stage aqueous phase inlet; the time interval between the extractant flowing into the high flow ratio mixing and clarification tank and the extractant flowing into the high flow ratio mixing and clarification tank is a first preset time, which is 10 minutes. The extractable liquid is fed into a high-flow-ratio mixing and clarifying tank in sequence according to a first preset ratio and a second preset ratio; the first preset ratio is one-third; the second preset ratio is two-thirds; the interval between the extraction of the extractable liquid according to the first preset ratio and the extraction of the extractable liquid according to the second preset ratio is a second preset time; the second preset time is 15 to 20 minutes. Specifically, according to the second activation signal, the first-stage organic phase inlet of the high-flow-ratio mixing and clarification tank is opened, allowing the extractant to flow into the high-flow-ratio mixing and clarification tank from the first-stage organic phase inlet. When the feed time of the extractant reaches the first preset time, according to the first intermediate-stage activation signal, the intermediate-stage aqueous phase inlet of the high-flow-ratio mixing and clarification tank is opened, allowing the extractable liquid to flow into the high-flow-ratio mixing and clarification tank from the intermediate-stage aqueous phase inlet at a flow rate of one-third ± 5%. After the feed time of the extractable liquid reaches 15 to 20 minutes, according to the first intermediate-stage activation signal, the intermediate-stage aqueous phase inlet of the high-flow-ratio mixing and clarification tank is opened, allowing the extractable liquid to flow into the high-flow-ratio mixing and clarification tank from the intermediate-stage aqueous phase inlet at a flow rate of two-thirds ± 5%.

2. A control device for a high flow ratio mixing and clarification tank, characterized in that, The device includes: The controller is configured to acquire a first activation signal, a second activation signal, and a stirring signal; and according to the first activation signal, control the opening of the aqueous phase inlet of the high-ratio mixing and clarification tank, allowing the aqueous phase feed liquid to flow into the high-ratio mixing and clarification tank; according to the second activation signal, control the opening of the organic phase inlet of the high-ratio mixing and clarification tank, allowing the organic phase feed liquid to flow into the high-ratio mixing and clarification tank; and according to the stirring signal, control the pump impeller to stir the organic phase feed liquid and the aqueous phase feed liquid to obtain the target element in the aqueous phase feed liquid. The process includes, before controlling the opening of the aqueous phase inlet of the high-ratio mixing and clarification tank according to the first opening signal, so that the aqueous phase feed liquid flows into the high-ratio mixing and clarification tank, the following steps are also included: The high flow ratio mixing and clarification tank is pretreated; The pretreatment includes: water sealing and tank filling; specifically, the clarifier is water-sealed by controlling the water seal pipeline for adding nitric acid to the clarifier; the clarifier is filled with an organic phase feed liquid, wherein the organic phase feed liquid is an extractant; according to the first opening signal, the aqueous phase inlet of the high-flow-ratio mixing clarifier is opened, allowing the aqueous phase feed liquid to flow into the high-flow-ratio mixing clarifier, including: According to the first final stage opening signal, the final stage water phase inlet of the high flow ratio mixing and clarification tank is opened, so that the detergent flows into the high flow ratio mixing and clarification tank from the final stage water phase inlet; specifically, after the stirring device in the high flow ratio mixing and clarification tank is turned on and water sealing and tank filling are performed, the detergent flows into the tank body from the final stage of the high flow ratio mixing and clarification tank at a preset value of ±5%. Specifically, according to the second opening signal, controlling the opening of the organic phase inlet of the high-flow-ratio mixing and clarification tank to allow the organic phase feed liquid to flow into the high-flow-ratio mixing and clarification tank includes: according to the second opening signal, controlling the opening of the first-stage organic phase inlet of the high-flow-ratio mixing and clarification tank to allow the extractant to flow into the high-flow-ratio mixing and clarification tank from the first-stage organic phase inlet; the flow rate of the extractant is controlled within ±5% of a preset value; According to the second opening signal, the first-stage organic phase inlet of the high-ratio mixing and clarification tank is opened, so that after the extractant flows into the high-ratio mixing and clarification tank from the first-stage organic phase inlet, the process includes: According to the first intermediate stage opening signal, the intermediate stage aqueous phase inlet of the high flow ratio mixing and clarification tank is opened, so that the extractant flows into the high flow ratio mixing and clarification tank from the intermediate stage aqueous phase inlet; the time interval between the extractant flowing into the high flow ratio mixing and clarification tank and the extractant flowing into the high flow ratio mixing and clarification tank is a first preset time, which is 10 minutes. The extractable liquid is fed into a high-flow-ratio mixing and clarifying tank in sequence according to a first preset ratio and a second preset ratio; the first preset ratio is one-third; the second preset ratio is two-thirds; the interval between the extraction of the extractable liquid according to the first preset ratio and the extraction of the extractable liquid according to the second preset ratio is a second preset time; the second preset time is 15 to 20 minutes. Specifically, according to the second activation signal, the first-stage organic phase inlet of the high-flow-ratio mixing and clarification tank is opened, allowing the extractant to flow into the high-flow-ratio mixing and clarification tank from the first-stage organic phase inlet. When the feed time of the extractant reaches the first preset time, according to the first intermediate-stage activation signal, the intermediate-stage aqueous phase inlet of the high-flow-ratio mixing and clarification tank is opened, allowing the extractable liquid to flow into the high-flow-ratio mixing and clarification tank from the intermediate-stage aqueous phase inlet at a flow rate of one-third ± 5%. After the feed time of the extractable liquid reaches 15 to 20 minutes, according to the first intermediate-stage activation signal, the intermediate-stage aqueous phase inlet of the high-flow-ratio mixing and clarification tank is opened, allowing the extractable liquid to flow into the high-flow-ratio mixing and clarification tank from the intermediate-stage aqueous phase inlet at a flow rate of two-thirds ± 5%.

3. A control device, characterized in that, include: A processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method as described in claim 1.

4. A readable storage medium, characterized in that, A program or instructions are stored on the readable storage medium, which, when executed by a processor, implement the steps of the method as described in claim 1.

Images