Resin continuous metering system, ion exchange reaction equipment and method

Abstract

The invention provides a resin continuous metering system and ion exchange reaction equipment and method. The resin continuous metering system comprises a first resin bin, a first separator, a second resin bin, a carrier liquid conveying assembly and a controller, and a regulating valve is arranged at a discharge port of the first resin bin; the first separator is provided with a first inlet, a first outlet, a second outlet, a mixed fluid meter and a first pipeline, and the first pipeline comprises a mixing pipe section; the carrier liquid conveying assembly comprises a carrier liquid bin, a liquid feeding pipeline and a liquid return pipeline, the carrier liquid bin is provided with a second inlet and a third outlet, the two ends of the liquid return pipeline are correspondingly connected with the second outlet and the second inlet, the liquid return pipeline is provided with a carrier liquid meter, and one end of the liquid feeding pipeline is correspondingly connected with the third outlet. The other end of the liquid feeding pipeline is connected with the first resin bin or the mixing pipe section; the controller is used for adjusting the opening degree of the regulation and control valve. The resin flow can be monitored in real time, and accurate control over the reaction process is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of resin reaction, and particularly relates to a resin continuous metering system, an ion exchange reaction device, and an ion exchange reaction method. Background Art

[0002] In the continuous reaction process of ion exchange resin, the resin usually exists in the form of solid plastic small balls. Physical properties such as the surface smoothness, particle size, and distribution characteristics of the resin result in poor self-flow performance of the resin particles, and it is easy to have problems with unstable resin flow rate. However, in the related technologies of reaction monitoring, there is a lack of effective means for accurately monitoring the resin flow rate. It is difficult for operators to timely and accurately grasp the change of the resin flow rate, and thus they cannot adjust the operation parameters in time to effectively control the reaction progress. Summary of the Invention

[0003] The present invention is made based on the inventor's discovery and recognition of the following facts and problems:

[0004] In the continuous reaction of ion exchange resin, the resin exists in the form of solid plastic small balls. Due to the influence of various physical properties such as the surface smoothness, particle size, and distribution characteristics of the resin particle small balls, the self-flow performance of the resin particles in the reaction system becomes poor. During the reaction process, the resin particles are difficult to flow smoothly like an ideal fluid, but are prone to phenomena such as accumulation and blockage. This leads to the problem of unstable resin flow rate. Sometimes the flow rate is too large, exceeding the tolerance of the reaction system, affecting the selectivity and yield of the reaction; sometimes the flow rate is too small, unable to meet the material supply required for the reaction, resulting in slow or even stagnant reaction progress.

[0005] In the related technologies of reaction monitoring, there is a serious lack of means for accurately monitoring the key parameter of resin flow rate. Traditional flow monitoring methods, such as flow meters, are mainly designed for continuous fluids such as liquids or gases, and are less applicable to solid particle fluids. Even if there are some monitoring methods for particle fluids, they often have problems such as low accuracy and poor stability, and are difficult to meet the requirements for accurately monitoring the resin flow rate in the continuous reaction process of ion exchange resin.

[0006] Due to the lack of effective means for monitoring the resin flow rate, it is difficult for operators to timely and accurately grasp the change of the resin flow rate. Nor can they adjust the operation parameters in time to effectively control the reaction progress. For example, when the resin flow rate is too large, the operator may not be able to reduce the feeding speed in time, resulting in too high a material concentration in the reaction system, triggering side reactions and reducing the purity and yield of the product. When the resin flow rate is too small, the operator also cannot increase the feeding amount in time, making the reaction progress slow, prolonging the reaction time, and increasing the production cost.

[0007] To this end, the present invention provides a resin continuous metering system, an ion exchange reaction device, and an ion exchange reaction method, which can monitor the resin flow rate in real time and achieve precise control of the reaction process.

[0008] The resin continuous metering system provided by the present invention includes:

[0009] A first resin bin for storing resin before metering. The first resin bin has a discharge port, and a regulating valve is provided at the discharge port.

[0010] A first separator having a first inlet, a first outlet, a second outlet, a mixed fluid meter, and a first pipeline. The two ends of the first pipeline are correspondingly connected to the first inlet and the regulating valve. The mixed fluid meter is provided on the first pipeline. The first pipeline includes a mixing pipe section, and the mixing pipe section is provided between the regulating valve and the mixed fluid meter.

[0011] A second resin bin for storing resin after metering. The second resin bin has a feed port, and a second pipeline is provided between the feed port and the first outlet.

[0012] A carrier liquid conveying assembly including a carrier liquid bin, a liquid supply pipeline, and a liquid return pipeline. The carrier liquid bin has a second inlet and a third outlet. The two ends of the liquid return pipeline are correspondingly connected to the second outlet and the second inlet. A carrier liquid meter is provided on the liquid return pipeline. One end of the liquid supply pipeline is correspondingly connected to the third outlet, and the other end of the liquid supply pipeline is connected to the first resin bin or the mixing pipe section.

[0013] A controller, which is electrically connected between the controller, the mixed fluid meter, the carrier liquid meter, and the regulating valve. The controller is used to adjust the opening degree of the regulating valve according to the flow rate data collected by the mixed fluid meter and the carrier liquid meter.

[0014] In summary, the resin continuous metering system provided by the embodiments of the present invention can monitor the resin flow rate in real time, achieve precise control of the reaction process, achieve efficient, precise metering and continuous conveying of resin materials, not only improve production efficiency, reduce production costs, but also contribute to the intelligent and automated development of the resin processing industry.

[0015] In some embodiments, the carrier liquid conveying assembly further includes a first circulation pump, and the first circulation pump is provided on the liquid supply pipeline. The first circulation pump is used to promote the carrier liquid in the carrier liquid bin to flow to the first separator.

[0016] In some embodiments, the first circulation pump is a centrifugal pump.

[0017] In some embodiments, the first separator is a vibrating screen, which includes a first screen mesh, a second screen mesh, and a third screen mesh arranged from top to bottom. The screen holes of the first screen mesh are circular, the screen holes of the second screen mesh are strip-shaped, and the screen holes of the third screen mesh are hexagonal honeycomb-shaped.

[0018] In some embodiments, the diameter of the screen holes of the first screen mesh is 0.5 mm to 1.5 mm, the width of the screen hole grooves of the second screen mesh is 0.3 mm to 0.8 mm, and the diameter of the inscribed circle of the screen holes of the third screen mesh is 0.2 mm to 0.6 mm.

[0019] In addition, the ion exchange reaction equipment provided by the embodiments of the present invention includes a reaction module and the resin continuous metering system provided by any one of the above embodiments. There are two resin continuous metering systems. The two resin continuous metering systems are a pre-reaction metering system and a post-reaction metering system respectively. The pre-reaction metering system is used to measure the instantaneous input amount of resin input into the reaction module, and the post-reaction metering system is used to measure the instantaneous output amount of resin after reaction in the reaction module.

[0020] In some embodiments, the reaction module includes a second separator, which has a third inlet and a fourth outlet. The second resin bin in the pre-reaction metering system is used for the resin to carry out ion exchange reaction. The second resin bin in the pre-reaction metering system also has a fifth outlet, and the fifth outlet is communicated with the third inlet. The fourth outlet of the second separator is communicated with the first resin bin of the post-reaction metering system, so that the resin after ion exchange flows into the post-reaction metering system through the second separator.

[0021] In some embodiments, the reaction module further includes a stirring rod, which is rotatably arranged in the second resin bin of the pre-reaction metering system. The stirring rod includes a rod body and a plurality of blades, and the plurality of blades are arranged at intervals on the outer peripheral surface of the rod body.

[0022] In some embodiments, the plurality of blades are sequentially divided into a first layer of blades, a second layer of blades, and a third layer of blades along the length direction of the rod body. The inclination angle of the first layer of blades is 15 degrees to 30 degrees, the inclination angle of the second layer of blades is 45 degrees to 60 degrees. The spiral direction of the first layer of blades is the same as that of the second layer of blades, and the spiral direction of the third layer of blades is opposite to that of the first layer of blades.

[0023] In some embodiments, the reaction module includes a pre-reaction material bin, a post-reaction material bin, a material input pipeline, a material output pipeline, and a second circulation pump. The two ends of the material input pipeline are correspondingly connected to the pre-reaction material bin and the second resin bin in the pre-reaction metering system. The second separator has a sixth outlet. The two ends of the material output pipeline are correspondingly connected to the fifth outlet and the post-reaction material bin. The second circulation pump is arranged in the material input pipeline, and the second circulation pump is used to promote the material in the pre-reaction material bin to flow to the second resin bin in the pre-reaction metering system.

[0024] In addition, the ion exchange reaction method based on the ion exchange reaction device provided in any one of the above embodiments provided by the embodiments of the present invention includes the following steps:

[0025] In response to an instruction to start the reaction, obtain the water content ratio of the resin, the flow rate of the pre-reaction mixed fluid and the pre-reaction carrier fluid in the pre-reaction metering system, the flow rate of the post-reaction mixed fluid and the post-reaction carrier fluid in the post-reaction metering system;

[0026] Calculate the instantaneous input amount of the pre-reaction resin according to the water content ratio, the flow rate of the pre-reaction mixed fluid, and the flow rate of the pre-reaction carrier fluid;

[0027] Calculate the instantaneous output amount of the post-reaction resin according to the water content ratio, the flow rate of the post-reaction mixed fluid, and the flow rate of the post-reaction carrier fluid;

[0028] Adjust the opening degree of the regulating valve in the pre-reaction resin metering system according to the instantaneous input amount of the pre-reaction resin;

[0029] Adjust the opening degree of the regulating valve in the post-reaction resin metering system according to the instantaneous output amount of the post-reaction resin;

[0030] Until both the instantaneous input amount of the pre-reaction resin and the instantaneous output amount of the post-reaction resin meet the preset flow rate range, then maintain the opening degrees of the regulating valve in the pre-reaction resin metering system and the regulating valve in the post-reaction resin metering system.

[0031] In some embodiments, the preset flow rate range includes a preset input flow rate range; the step of adjusting the opening degree of the regulating valve in the pre-reaction resin metering system according to the instantaneous input amount of the pre-reaction resin includes:

[0032] Judge whether the instantaneous input amount of the pre-reaction resin meets the preset input flow rate range;

[0033] If the instantaneous input amount of the pre-reaction resin is less than the preset input flow rate range, then increase the opening degree of the regulating valve in the pre-reaction resin metering system to adjust the instantaneous input amount of the resin;

[0034] If the instantaneous resin input quantity before the reaction is greater than the preset input flow rate range, then reduce the opening degree of the regulating valve in the resin metering system before the reaction to adjust the instantaneous resin input quantity;

[0035] Until the instantaneous resin input quantity before the reaction conforms to the preset input flow rate range, then maintain the opening degree of the regulating valve in the resin metering system before the reaction.

[0036] In some embodiments, the preset flow rate range includes a preset output flow rate range; the step of adjusting the opening degree of the regulating valve in the resin metering system after the reaction according to the instantaneous resin output quantity after the reaction includes:

[0037] Judge whether the instantaneous resin output quantity after the reaction conforms to the preset output flow rate range;

[0038] If the instantaneous resin output quantity after the reaction is less than the preset output flow rate range, then increase the opening degree of the regulating valve in the resin metering system after the reaction to adjust the resin output quantity;

[0039] If the instantaneous resin output quantity after the reaction is greater than the preset output flow rate range, then reduce the opening degree of the regulating valve in the resin metering system after the reaction to adjust the resin output quantity;

[0040] Until the instantaneous resin output quantity after the reaction conforms to the preset output flow rate range, then maintain the opening degree of the regulating valve in the resin metering system after the reaction. Description of the Drawings

[0041] Figure 1 is a schematic structural diagram of a resin continuous metering system provided by an embodiment of the present invention.

[0042] Figure 2 is a schematic structural diagram of an ion exchange reaction device provided by an embodiment of the present invention.

[0043] Figure 3 is based on an embodiment of the present invention Figure 2 is a schematic flow chart of an ion exchange method of the ion exchange device shown.

[0044] Reference Signs:

[0045] 10. Resin continuous metering system;

[0046] 11. First resin bin; 111. Discharge port; 112. Regulating valve;

[0047] 12. First separator; 121. First inlet; 122. First outlet; 123. Second outlet; 124. Mixed fluid meter; 125. First pipeline; 1251. Mixed pipe section;

[0048] 13. Second resin bin; 131. Feed inlet; 132. Second pipeline;

[0049] 14. Carrier liquid delivery assembly; 141. Carrier liquid bin; 1411. Second inlet; 1412. Third outlet; 142. Liquid delivery pipeline; 143. Liquid return pipeline; 144. Carrier liquid meter; 145. First circulation pump;

[0050] 15. Controller;

[0051] 100. Ion exchange device;

[0052] 10a. Pre-reaction metering system; 133a. Fifth outlet;

[0053] 10b. Post-reaction metering system;

[0054] 20. Reaction module;

[0055] 21. Second separator; 211. Third inlet; 212. Fourth outlet; 213. Sixth outlet;

[0056] 22. Pre-reaction material bin;

[0057] 23. Post-reaction material bin;

[0058] 24. Material input pipeline;

[0059] 25. Material output pipeline;

[0060] 26. Second circulation pump;

[0061] 27. Stirring rod; 271. Rod body; 272. Blades; 273. Driver. Detailed implementation manners

[0062] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0063] Reference Figure 1, which is a schematic structural diagram of the resin continuous metering system 10 provided by an embodiment of the present invention. The resin continuous metering system 10 provided by an embodiment of the present invention includes a first resin bin 11, a first separator 12, a second resin bin 13, a carrier liquid conveying assembly 14 and a controller 15. The first resin bin 11 is used to store the resin before metering. The first resin bin 11 has a discharge port 111, and a regulating valve 112 is provided at the discharge port 111. The first separator 12 has a first inlet 121, a first outlet 122, a second outlet 123, a mixed fluid meter 124 and a first pipeline 125. The two ends of the first pipeline 125 are correspondingly connected to the first inlet 121 and the regulating valve 112. The mixed fluid meter 124 is arranged on the first pipeline 125. The first pipeline 125 includes a mixing pipe section 1251, and the mixing pipe section 1251 is arranged between the regulating valve 112 and the mixed fluid meter 124. The second resin bin 13 is used to store the resin after metering. The second resin bin 13 has a feed port 131, and a second pipeline 132 is provided between the feed port 131 and the first outlet 122.

[0064] The carrier liquid conveying assembly 14 includes a carrier liquid bin 141, a liquid supply pipeline 142 and a liquid return pipeline 143. The carrier liquid bin 141 has a second inlet 1411 and a third outlet 1412. The two ends of the liquid return pipeline 143 are correspondingly connected to the second outlet 123 and the second inlet 1411. A carrier liquid meter 144 is arranged on the liquid return pipeline 143. One end of the liquid supply pipeline 142 is correspondingly connected to the third outlet 1412, and the other end of the liquid supply pipeline 142 is connected to the first resin bin 11 or the mixing pipe section 1251. The controller 15, the mixed fluid meter 124, the carrier liquid meter 144 and the regulating valve 112 are electrically connected. The controller 15 is used to adjust the opening degree of the regulating valve 112 according to the flow data collected by the mixed fluid meter 124 and the carrier liquid meter 144.

[0065] Specifically, the first resin bin 11 stores un-metered resin materials. The discharge port 111 of the first resin bin 11 is provided with a regulating valve 112, which can not only facilitate the control of the resin outflow speed, but also cut off the resin flow when necessary, providing a flexible operation space for the subsequent metering process.

[0066] The carrier liquid delivery assembly 14 is responsible for the circulation, delivery, and metering of the carrier liquid. One end of the liquid delivery pipeline 142 is connected to the third outlet 1412 of the carrier liquid tank 141, and the other end of the liquid delivery pipeline 142 is connected to the first resin tank 11 or the mixing pipe section 1251, so as to ensure that the carrier liquid can be mixed with the resin to be metered, and ensure that the resin before metering can be evenly dispersed in the carrier liquid, forming a mixed fluid containing the carrier liquid and the resin. The mixed fluid can pass through the mixed fluid meter 124 to accurately measure the passing flow rate of the mixed fluid. Then the mixed fluid passes through the first pipeline 125 and the first inlet 121 into the first separator 12. After the separation of the first separator 12, the mixed fluid is divided into two fluid streams again. The two fluid streams are the resin fluid stream and the carrier liquid fluid stream respectively.

[0067] The resin fluid stream can flow into the second resin tank 13 through the first outlet 122 of the first separator 12 and the second pipeline, and the carrier liquid fluid stream flows into the carrier liquid tank 141 through the second outlet 123 of the first separator 12, the liquid return pipeline 143 and the second inlet 1411 of the carrier liquid tank 141. And the carrier liquid meter 144 is arranged on the liquid return pipeline 143 to also monitor the flow rate of the returned carrier liquid in real time.

[0068] Finally, the controller 15 establishes an electrical connection with the mixed fluid meter 124, the carrier liquid meter 144, and the regulating valve 112, and can receive and analyze the flow rate data collected by the mixed fluid meter 124 and the carrier liquid meter 144 in real time. Based on these data, the controller 15 can intelligently adjust the opening degree of the regulating valve 112, so as to accurately control the mixing ratio and flow rate of the resin and the carrier liquid, and ensure the stability and accuracy of the entire metering process.

[0069] In addition, an instantaneous quantity operation module is stored in the controller 15, and the water content ratio of the resin to be metered in the first resin tank 11 is stored in the instantaneous quantity operation module. The instantaneous quantity operation module is used to calculate the instantaneous resin flow rate according to the mixed fluid flow rate, the carrier liquid flow rate, and the water content ratio. It not only improves the accuracy of metering, but also provides strong support for real-time monitoring and adjustment in the production process.

[0070] Among them, the instantaneous flow rate algorithm can also be expressed by the following formula:

[0071]

[0072] In the formula, U is the instantaneous resin flow rate; U 混合 is the mixed fluid flow rate collected by the mixed fluid meter 124; U 运载液 is the carrier liquid flow rate collected by the carrier liquid meter 144; ξ is the water content ratio of the resin to be metered in the first resin tank 11.

[0073] In summary, the resin continuous metering system 10 provided by the embodiments of the present invention can monitor the resin flow rate in real time, achieve precise control of the reaction process, and realize efficient, precise metering and continuous conveying of resin materials. This not only improves production efficiency and reduces production costs, but also contributes to the intelligent and automated development of the resin processing industry.

[0074] In some embodiments, the carrier liquid conveying assembly 14 further includes a first circulation pump 145. The first circulation pump 145 is arranged in the liquid delivery pipeline 142. The first circulation pump 145 is used to promote the carrier liquid in the carrier liquid tank 141 to flow towards the first separator 12, making the flow of the carrier liquid in the circulation system smoother, reducing energy loss and metering errors caused by poor flow, and greatly improving the efficiency and stability of the carrier liquid conveying assembly 14.

[0075] Furthermore, the first circulation pump 145 is a centrifugal pump. The centrifugal pump has the characteristics of large flow rate and high head. It can generate a strong centrifugal force through the rotation of the impeller inside, suck the carrier liquid from the center of the impeller and accelerate it to be thrown out radially, so as to achieve the efficient conveying of the carrier liquid.

[0076] In some embodiments, the first separator 12 is a vibrating screen. The vibrating screen includes a first screen mesh, a second screen mesh and a third screen mesh arranged from top to bottom, jointly constituting an efficient and precise separation system. Among them, the screen holes of the first screen mesh are circular, which can effectively intercept larger particle impurities or incompletely dispersed resin aggregates, ensuring that only resin particles meeting certain particle size requirements can pass smoothly and enter the next layer of screen mesh for further separation.

[0077] The screen holes of the second screen mesh are strip-shaped, which can more effectively guide the resin particles to pass through in a specific direction, and at the same time further intercept and separate impurities with similar particle size but different shapes or properties from the resin, not only enhancing the separation effect, but also improving the screening efficiency, making the separation of the resin and the carrier liquid more thorough.

[0078] The second screen holes are hexagonal honeycomb-shaped, which can intercept extremely small impurity particles. Also, due to its unique hexagonal structure, it has a larger screening area and better passability, enabling the resin particles to pass through the third screen mesh more smoothly, while ensuring that the impurities in the carrier liquid are completely removed, providing a strong guarantee for subsequent metering and recycling work.

[0079] Furthermore, the diameter of the screen holes of the first screen mesh is 0.5 mm to 1.5 mm, the slot width of the screen holes of the second screen mesh is 0.3 mm to 0.8 mm, and the inscribed circle diameter of the screen holes of the third screen mesh is 0.2 mm to 0.6 mm, thereby precisely setting the screen hole sizes of the three-layer screen mesh, not only improving the screening efficiency and accuracy of the vibrating screen, but also providing strong support for the stable operation and precise metering of the entire resin continuous metering system 10.

[0080] In addition, as Figure 2 shown, an embodiment of the present invention provides an ion exchange reaction device, which includes a reaction module 20 and the resin continuous metering system 10 provided in the above embodiment. There are two resin continuous metering systems 10, which are respectively a pre-reaction metering system 10a and a post-reaction metering system 10b. The pre-reaction metering system 10a is used to measure the instantaneous input amount of resin input into the reaction module 20, and the post-reaction metering system 10b is used to measure the instantaneous output amount of resin after reaction in the reaction module 20.

[0081] That is to say, the ion exchange reaction device integrates the reaction module 20 and the resin continuous metering system 10 elaborated in detail in the above embodiment, forming a complete and highly automated ion exchange treatment solution. It is particularly worth mentioning that the resin continuous metering system 10 in this embodiment is not a single configuration, but creatively sets two independent and clearly defined systems - the pre-reaction metering system 10a and the post-reaction metering system 10b.

[0082] The pre-reaction metering system 10a may include components such as a first resin bin 11, a first separator 12, a carrier liquid conveying assembly 14, and a controller 15. Among them, the first resin bin 11 is used to store the resin material to be metered, and the first separator 12 ensures that the purity and particle size distribution of the resin meet the reaction requirements through its multi-layer sieve structure. The carrier liquid conveying assembly 14 is responsible for mixing the resin with the carrier liquid and then conveying it to the reaction module 20 at a stable flow rate. The controller 15 intelligently adjusts the opening of the control valve 112 according to the flow data collected by the mixed fluid meter 124 and the carrier liquid meter 144 to achieve precise control of the instantaneous input amount of resin.

[0083] The post-reaction metering system 10b is responsible for measuring the instantaneous output amount of resin after reaction in the reaction module 20. This system also adopts a configuration and technical principle similar to that of the pre-reaction metering system 10a, but it focuses more on the monitoring and evaluation of the resin after reaction in terms of design and function.

[0084] In the post-reaction metering system 10b, the second resin bin 13 is used to store the resin material after reaction for subsequent processing or analysis. The first separator 12 (or a similar device) plays a role again to separate the resin after reaction from the carrier liquid to ensure the accuracy of the metering data. At the same time, the carrier liquid conveying assembly 14 and the controller 15 also work together to ensure the smooth conveying and precise metering of the resin after reaction.

[0085] It is worth mentioning that although the pre-reaction metering system 10a and the post-reaction metering system 10b are functionally independent, they are interrelated and mutually corroborative in terms of data. By comparing the flow data collected by the two systems, operators can more comprehensively understand the entire process of the ion exchange reaction, including key indicators such as the input amount of resin, reaction efficiency, and output amount. This closed-loop management of data not only improves the transparency and controllability of the reaction process but also provides strong support for the optimization and upgrade of equipment and fault troubleshooting.

[0086] In summary, the ion exchange reaction equipment provided by an embodiment of the present invention integrates the reaction module 20 and two independent resin continuous metering systems 10 (the pre-reaction metering system 10a and the post-reaction metering system 10b), realizing precise control and real-time monitoring of the entire process of the ion exchange reaction. It not only improves the reaction efficiency and the accuracy of resin use but also ensures the effective progress of the ion exchange technology.

[0087] In this embodiment, the mixed fluid meter 124 in the pre-reaction metering system 10a is used to measure the flow rate of the pre-reaction mixed fluid, and the carrier liquid meter 144 in the pre-reaction metering system 10a is used to measure the flow rate of the pre-reaction carrier liquid. Correspondingly, the pre-reaction metering system 10a can calculate the instantaneous input amount of resin before the reaction based on the water content ratio, the flow rate of the pre-reaction mixed fluid, and the flow rate of the pre-reaction carrier liquid.

[0088] The mixed fluid meter 124 in the post-reaction metering system 10b is used to measure the flow rate of the post-reaction mixed fluid, and the carrier liquid meter 144 in the post-reaction metering system 10b is used to measure the flow rate of the post-reaction carrier liquid. Correspondingly, the post-reaction metering system 10b can calculate the instantaneous output amount of resin after the reaction based on the water content ratio, the flow rate of the post-reaction mixed fluid, and the flow rate of the post-reaction carrier liquid.

[0089] Among them, the instantaneous input amount of resin before the reaction can be calculated using the following formula:

[0090]

[0091] In the formula, U 反应前 is the instantaneous resin flow rate; U 反应前混合 is the flow rate of the mixed fluid collected by the mixed fluid meter 124; U 反应前运载液 is the flow rate of the carrier liquid collected by the carrier liquid meter 144; ξ is the water content ratio of the resin.

[0092] In addition, the instantaneous output amount of resin after the reaction can be calculated using the following formula:

[0093]

[0094] In the formula, U 反应后 is the instantaneous resin flow rate; U 反应后混合is the flow rate of the mixed fluid collected by the mixed fluid meter 124; U 反应后运载液 is the flow rate of the carrier liquid collected by the carrier liquid meter 144; ξ is the water content ratio of the resin.

[0095] In some embodiments, the reaction module 20 includes a second separator 21. The second separator 21 has a third inlet 211 and a fourth outlet 212. The second resin bin 13 in the pre-reaction metering system 10a is used for the resin to carry out an ion exchange reaction. The second resin bin 13 in the pre-reaction metering system 10a also has a fifth outlet 133a. The fifth outlet 133a is communicated with the third inlet 211. The fourth outlet 212 of the second separator 21 is communicated with the first resin bin 11 of the post-reaction metering system 10b, so that the resin after the ion exchange flows into the post-reaction metering system 10b through the second separator 21.

[0096] In some embodiments, the second resin bin 13 in the pre-reaction metering system 10a not only serves as a temporary storage container for the resin, but also serves as an actual place for the resin to carry out an ion exchange reaction. That is to say, in this resin bin, the resin can be in full contact with a specific ion exchange medium to carry out an ion exchange reaction, so as to realize the specific function conversion or impurity removal of the resin.

[0097] The fifth outlet 133a of the second resin bin 13 is communicated with the third inlet 211 in the second separator 21 of the reaction module 20, forming a smooth resin flow channel. When the resin completes the ion exchange reaction in the second resin bin 13, it will automatically flow into the second separator 21 through the fifth outlet 133a. The fourth outlet 212 in the second separator 21 of the reaction module 20 is communicated with the first resin bin 11 of the post-reaction metering system 10b. This design enables the resin processed by the second separator 21 to directly flow into the first resin bin 11 of the post-reaction metering system 10b, preparing for subsequent metering and evaluation work.

[0098] During the whole ion exchange reaction process, the second separator 21 plays a crucial role in connecting the preceding with the following. It not only ensures the smooth transportation of the resin after the reaction, but also further purifies and processes the resin through the separation mechanism inside it, improving the quality of the resin and the efficiency of subsequent processing. At the same time, the close connection between the second separator 21 and the pre-reaction metering system 10a and the post-reaction metering system 10b also forms a complete ion exchange reaction and metering closed loop, making the whole device more stable and reliable during operation.

[0099] In this embodiment, the reaction module 20 includes a pre-reaction material bin 22, a post-reaction material bin 23, a material input pipeline 24, a material output pipeline 25, and a second circulation pump 26. The two ends of the material input pipeline 24 are correspondingly connected to the pre-reaction material bin 22 and the second resin bin 13 in the pre-reaction metering system 10a. The second separator 21 has a sixth outlet 213. The two ends of the material output pipeline 25 are correspondingly connected to the sixth outlet 213 and the post-reaction material bin 23. The second circulation pump 26 is arranged in the material input pipeline 24, and the second circulation pump 26 is used to promote the material in the pre-reaction material bin 22 to flow towards the second resin bin 13 in the pre-reaction metering system 10a.

[0100] Specifically, the pre-reaction material bin 22 serves as the starting point of the entire reaction module 20. The material input pipeline 24 connects the pre-reaction material bin 22 and the second resin bin 13 in the pre-reaction metering system 10a, enabling the material to flow quickly and smoothly towards the second resin bin 13 in the pre-reaction metering system 10a. The second circulation pump 26 can push the material in the pre-reaction material bin 22 towards the second resin bin 13 in the pre-reaction metering system 10a with a stable pressure and flow rate.

[0101] In the second resin bin 13 in the pre-reaction metering system 10a, the material undergoes a full ion exchange reaction with the resin. After the reaction is completed, the post-reaction material can enter the post-reaction material bin 23 through the sixth outlet 213 of the second separator 21 and the material output pipeline 25.

[0102] In some embodiments, the reaction module 20 further includes a stirring rod 27. The stirring rod 27 is rotatably arranged in the second resin bin 13 in the pre-reaction metering system 10a. The stirring rod 27 includes a rod body 271 and a plurality of blades 272. The plurality of blades 272 are spaced apart on the outer peripheral surface of the rod body 271, which can promote the full mixing and contact between the resin and the material, thereby accelerating the process of the ion exchange reaction.

[0103] In this embodiment, the reaction module further includes a driver 273. The output end of the driver 273 is connected to the rod body 271 to drive the rod body 271 and the blades 272 to rotate.

[0104] Optionally, the driver 273 can be set as components such as a motor or a pneumatic motor.

[0105] In addition, multiple blades are arranged in a single layer. Of course, in other embodiments, the blades can also be arranged in multiple layers. For example, multiple blades are sequentially divided into a first-layer blade, a second-layer blade, and a third-layer blade along the length direction of the rod body. The inclination angle of the first-layer blade is 15 degrees to 30 degrees. The inclination angle of the second-layer blade is 45 degrees to 60 degrees. If the spiral direction of the first-layer blade is the same as that of the second-layer blade, and the spiral direction of the third-layer blade is opposite to that of the first-layer blade, a reverse stirring force can be generated when the stirring rod 27 rotates, forming a complementary and balanced effect with the stirring forces generated by the first-layer and second-layer blades. This design not only helps to break the laminar flow state of the material during stirring, promoting the all-round mixing of the material, but also can effectively prevent the formation of dead zones or accumulation phenomena around the stirring rod 27, ensuring that the materials in the entire resin bin can be fully stirred and mixed.

[0106] In addition, an embodiment of the present invention provides an ion exchange reaction method based on the ion exchange device 100 in the above embodiment. This ion exchange reaction method can be applied to the ion exchange device 100 provided in any of the above embodiments. The ion exchange reaction method includes the following steps:

[0107] S10, in response to the instruction to start the reaction, obtain the water content ratio of the resin, the flow rate of the pre-reaction mixed fluid and the flow rate of the pre-reaction carrier fluid in the pre-reaction metering system, the flow rate of the post-reaction mixed fluid and the flow rate of the post-reaction carrier fluid in the post-reaction metering system;

[0108] S20, calculate the instantaneous input amount of the pre-reaction resin based on the water content ratio, the flow rate of the pre-reaction mixed fluid, and the flow rate of the pre-reaction carrier fluid;

[0109] S30, calculate the instantaneous output amount of the post-reaction resin based on the water content ratio, the flow rate of the post-reaction mixed fluid, and the flow rate of the post-reaction carrier fluid;

[0110] S40, adjust the opening degree of the regulating valve in the pre-reaction resin metering system according to the instantaneous input amount of the pre-reaction resin;

[0111] S50, adjust the opening degree of the regulating valve in the post-reaction resin metering system according to the instantaneous output amount of the post-reaction resin;

[0112] S60, until both the instantaneous input amount of the pre-reaction resin and the instantaneous output amount of the post-reaction resin meet the preset flow rate range, then maintain the opening degrees of the regulating valve in the pre-reaction resin metering system and the regulating valve in the post-reaction resin metering system.

[0113] Furthermore, the preset flow rate range includes a preset input flow rate range. The step of adjusting the opening degree of the regulating valve in the pre-reaction resin metering system according to the instantaneous input amount of the pre-reaction resin includes:

[0114] Determine whether the instantaneous input quantity of the resin before the reaction conforms to the preset input flow range;

[0115] If the instantaneous input quantity of the resin before the reaction is less than the preset input flow range, increase the opening degree of the regulating valve in the resin metering system before the reaction to adjust the instantaneous input quantity of the resin;

[0116] If the instantaneous input quantity of the resin before the reaction is greater than the preset input flow range, decrease the opening degree of the regulating valve in the resin metering system before the reaction to adjust the instantaneous input quantity of the resin;

[0117] Until the instantaneous input quantity of the resin before the reaction conforms to the preset input flow range, maintain the opening degree of the regulating valve in the resin metering system before the reaction.

[0118] Furthermore, the preset flow range includes a preset output flow range. The steps of adjusting the opening degree of the regulating valve in the resin metering system after the reaction according to the instantaneous output quantity of the resin after the reaction include:

[0119] Determine whether the instantaneous output quantity after the reaction conforms to the preset output flow range;

[0120] If the instantaneous output quantity of the resin after the reaction is less than the preset output flow range, increase the opening degree of the regulating valve in the resin metering system after the reaction to adjust the instantaneous output quantity of the resin;

[0121] If the instantaneous output quantity of the resin after the reaction is greater than the preset output flow range, decrease the opening degree of the regulating valve in the resin metering system after the reaction to adjust the instantaneous output quantity of the resin;

[0122] Until the instantaneous output quantity of the resin after the reaction conforms to the preset output flow range, maintain the opening degree of the regulating valve in the resin metering system after the reaction.

[0123] In this embodiment, when the operator issues an instruction to start the reaction, the system immediately responds and comprehensively obtains the key parameters required for the current reaction. These parameters include the water content ratio of the resin, the flow rate of the pre-reaction mixed fluid in the pre-reaction metering system 10a (i.e., the flow rate of the mixed fluid of the resin and the carrier liquid before entering the reaction module 20) and the flow rate of the pre-reaction carrier liquid (i.e., the flow rate of the carrier liquid entering the reaction module 20 alone), as well as the flow rate of the post-reaction mixed fluid in the post-reaction metering system 10b (i.e., the flow rate of the mixed fluid of the resin and the carrier liquid after the reaction) and the flow rate of the post-reaction carrier liquid (i.e., the flow rate of the carrier liquid discharged alone after the reaction).

[0124] After obtaining the above key parameters, the system uses a preset algorithm and model to accurately calculate the instantaneous amount of resin input before the reaction based on the water content ratio, the flow rate of the mixed fluid before the reaction, and the flow rate of the carrier liquid before the reaction; after obtaining the instantaneous amount of resin input before the reaction, it can intelligently adjust the opening degree of the control valve 112 in the resin metering system before the reaction to ensure that the resin is input into the reaction module 20 at a stable flow rate, thereby meeting the reaction requirements.

[0125] Moreover, the system can also accurately calculate the instantaneous amount of resin output after the reaction based on the water content ratio, the flow rate of the mixed fluid after the reaction, and the flow rate of the carrier liquid after the reaction. Then, it can intelligently adjust the opening degree of the control valve 112 in the resin metering system after the reaction. While ensuring that the resin after the reaction can be discharged at a stable flow rate, it can also monitor the instantaneous amount of resin output after the reaction in a timely manner, and can also promptly detect possible problems during the reaction process, such as resin blockage, incomplete reaction, etc., providing important feedback and adjustment basis for the operator.

[0126] In addition, the system continuously monitors the instantaneous amount of resin input before the reaction and the instantaneous amount of resin output after the reaction, and compares them with the preset flow rate range. When both of these values meet the preset flow rate range, it indicates that the reaction process is stable and controllable. At this time, the system keeps the opening degrees of the control valve 112 in the resin metering system before the reaction and the control valve 112 in the resin metering system after the reaction unchanged to maintain this stable state. If it is monitored that any one of the values exceeds the preset range, the system will immediately make adjustments to ensure the continuity and stability of the reaction process.

[0127] Among them, the instantaneous amount of resin input before the reaction can be calculated using the following formula:

[0128]

[0129] In the formula, U 反应前 is the instantaneous resin flow rate; U 反应前混合 is the flow rate of the mixed fluid collected by the mixed fluid meter; U 反应前运载液 is the flow rate of the carrier liquid collected by the carrier liquid meter; ξ is the water content ratio of the resin.

[0130] In addition, the instantaneous amount of resin output after the reaction can be calculated using the following formula:

[0131]

[0132] In the formula, U 反应后 is the instantaneous resin flow rate; U 反应后混合 is the flow rate of the mixed fluid collected by the mixed fluid meter; U 反应后运载液 is the flow rate of the carrier liquid collected by the carrier liquid meter; ξ is the water content ratio of the resin.

[0133] In some embodiments, in the ion exchange reaction method provided by the present invention, the step of obtaining the water content ratio of the resin, the flow rate of the pre-reaction mixed fluid and the flow rate of the pre-reaction carrier liquid in the metering system before the reaction, and the flow rate of the post-reaction mixed fluid and the flow rate of the post-reaction carrier liquid in the metering system after the reaction in response to the instruction to start the reaction further includes:

[0134] Take the resin to be metered and water in a graduated cylinder, make the liquid level at the same height as the sedimentation volume of the resin, read the sedimentation volume of the resin, transfer the resin and water out of the graduated cylinder, sieve the resin and water, and read the volume of water;

[0135] Calculate the water content ratio of the resin based on the sedimentation volume of the resin and the volume of water.

[0136] Further, the water content ratio of the resin can be calculated by the following formula:

[0137]

[0138] In the formula: ξ is the water content ratio of the resin to be metered; V 水0 is the value of the volume of water, V R0 is the value of the sedimentation volume of the resin.

[0139] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0140] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0141] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0142] In the present invention, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or are in indirect contact via an intermediate medium between the first and second features. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0143] In the present invention, the terms "one embodiment", "some embodiments", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples.

[0144] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A resin continuous metering system, characterized in that: include: A first resin bin, the first resin bin is used to store the resin before metering, the first resin bin has a discharge port, and the discharge port is provided with a regulating valve; A first separator, the first separator having a first inlet, a first outlet, a second outlet, a mixed fluid meter and a first pipeline, two ends of the first pipeline correspondingly connecting the first inlet and the regulating valve, the mixed fluid meter is arranged in the first pipeline, the first pipeline comprises a mixing pipe section, and the mixing pipe section is arranged between the regulating valve and the mixed fluid meter; A second resin bin, the second resin bin is used to store the metered resin, the second resin bin has a feed port, and a second pipeline is provided between the feed port and the first outlet; A carrier liquid delivery component, the carrier liquid delivery component comprising a carrier liquid tank, a liquid delivery pipeline and a liquid return pipeline, the carrier liquid tank having a second inlet and a third outlet, two ends of the liquid return pipeline correspondingly connected to the second outlet and the second inlet, a carrier liquid meter is provided on the liquid return pipeline, one end of the liquid delivery pipeline correspondingly connected to the third outlet, and the other end of the liquid delivery pipeline connected to the first resin tank or the mixing pipe section; A controller, wherein the controller, the mixed fluid meter, the carrier fluid meter and the control valve are electrically connected, and the controller is used to adjust the opening of the control valve according to flow data collected by the mixed fluid meter and the carrier fluid meter.

2. The resin continuous metering system according to claim 1, characterized in that: The carrier liquid delivery assembly further includes a first circulation pump, which is disposed in the liquid delivery pipeline and is used to force the carrier liquid in the carrier liquid tank to flow toward the first separator.

3. The resin continuous metering system according to claim 1, characterized in that: The first separator is configured as a vibrating screen, which includes a first screen, a second screen and a third screen arranged from top to bottom, wherein the screen holes of the first screen are circular, the screen holes of the second screen are long strips, and the screen holes of the third screen are hexagonal honeycomb shapes.

4. An ion exchange reaction device, characterized in that: It comprises a reaction module and the resin continuous metering system as described in any one of claims 1 to 3, wherein two resin continuous metering systems are provided, and the two resin continuous metering systems are respectively a pre-reaction metering system and a post-reaction metering system, wherein the pre-reaction metering system is used to meter the instantaneous amount of resin input to the reaction module, and the post-reaction metering system is used to meter the instantaneous amount of resin output after the reaction of the reaction module.

5. The ion exchange reaction equipment according to claim 4, characterized in that: The reaction module includes a second separator, which has a third inlet and a fourth outlet. The second resin bin in the pre-reaction metering system is used for resin to perform ion exchange reaction. The second resin bin in the pre-reaction metering system also has a fifth outlet, which is connected to the third inlet. The fourth outlet of the second separator is connected to the first resin bin of the post-reaction metering system, so that the resin after ion exchange can flow into the post-reaction metering system through the second separator.

6. The ion exchange reaction equipment according to claim 5, characterized in that: The reaction module includes a pre-reaction material bin, a post-reaction material bin, a material input pipeline, a material output pipeline and a second circulation pump, the two ends of the material input pipeline are correspondingly connected to the pre-reaction material bin and the second resin bin in the pre-reaction metering system, the second separator has a sixth outlet, the two ends of the material output pipeline are correspondingly connected to the fifth outlet and the post-reaction material bin, the second circulation pump is arranged on the material input pipeline, and the second circulation pump is used to cause the material in the pre-reaction material bin to flow to the second resin bin in the pre-reaction metering system.

7. The ion exchange reaction equipment according to claim 4, characterized in that: The reaction module also includes a stirring rod, which is rotatably disposed in the second resin chamber of the pre-reaction metering system. The stirring rod includes a rod body and a plurality of blades, and the plurality of blades are spaced apart on the outer peripheral surface of the rod body.

8. An ion exchange reaction method based on the ion exchange reaction device according to any one of claims 4 to 7, characterized in that: The steps include: In response to an instruction to start a reaction, obtaining the water content ratio of the resin, the pre-reaction mixed fluid flow rate and the pre-reaction carrier fluid flow rate in the pre-reaction metering system, and the post-reaction mixed fluid flow rate and the post-reaction carrier fluid flow rate in the post-reaction metering system; Calculating the instantaneous amount of resin input before reaction according to the water content ratio, the flow rate of the mixed fluid before reaction and the flow rate of the carrier fluid before reaction; Calculating the instantaneous output of the resin after the reaction according to the water content ratio, the flow rate of the mixed fluid after the reaction and the flow rate of the carrier fluid after the reaction; According to the instantaneous amount of the pre-reaction resin input, adjusting the opening of the control valve in the pre-reaction resin metering system; According to the instantaneous amount of the reacted resin output, adjusting the opening of the control valve in the reacted resin metering system; Until the instantaneous amount of the pre-reaction resin input and the instantaneous amount of the post-reaction resin output both meet the preset flow range, the openings of the control valves in the pre-reaction resin metering system and the post-reaction resin metering system are maintained.

9. The ion exchange reaction method according to claim 8, characterized in that: The preset flow range includes a preset input flow range; the step of adjusting the opening of the control valve in the pre-reaction resin metering system according to the instantaneous amount of pre-reaction resin input includes: Determining whether the instantaneous amount of resin input before the reaction meets the preset input flow range; If the instantaneous amount of the pre-reaction resin input is less than the preset input flow range, increasing the opening of the control valve in the pre-reaction resin metering system to adjust the instantaneous amount of the resin input; If the instantaneous amount of the pre-reaction resin input is greater than the preset input flow range, reducing the opening of the control valve in the pre-reaction resin metering system to adjust the instantaneous amount of the resin input; Until the instantaneous amount of pre-reaction resin input meets the preset input flow range, the opening of the control valve in the pre-reaction resin metering system is maintained.

10. The ion exchange reaction method according to claim 8, characterized in that: The preset flow range includes a preset output flow range; the step of adjusting the opening of the control valve in the post-reaction resin metering system according to the instantaneous output amount of the post-reaction resin includes: Determining whether the instantaneous amount of the resin output after the reaction meets the preset output flow range; If the instantaneous amount of the resin output after the reaction is less than the preset output flow range, increasing the opening of the control valve in the resin metering system after the reaction to adjust the instantaneous amount of the resin output; If the instantaneous amount of the resin output after the reaction is greater than the preset output flow range, reducing the opening of the control valve in the resin metering system after the reaction to adjust the instantaneous amount of the resin output; Until the instantaneous output amount of the reacted resin meets the preset output flow range, the opening of the regulating valve in the reacted resin metering system is maintained.

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