A high-tower resin in-vitro medicine feeding regeneration system and method

Abstract

This invention discloses a high-tower resin in vitro drug feeding regeneration system and method. The high-tower resin in vitro drug feeding regeneration system includes an anion resin regeneration tower and a cation resin regeneration tower. The input end of the cation resin regeneration tower is connected to the anion resin output end of the resin separation tower; the input end of the anion resin regeneration tower is connected to the cation resin output end of the resin separation tower; each resin regeneration tower has a drug feeding module on its outer periphery; each drug feeding module includes multiple drug feeders; each drug feeder includes an annular pipe; a distributor is connected to the outside of the annular pipe, and the distributor is connected to an acid feeding module or an alkali feeding module; multiple drug feeding pipes are provided inside the annular pipe, and each drug feeding pipe is connected to the resin regeneration tower. This invention can avoid the phenomenon of regeneration liquid flow deviation in the resin regeneration tower and control the amount of acid and alkali fed in, thereby improving the efficiency of the acid and alkali drug feeding regeneration process.

Description

Technical Field

[0001] This invention relates to a high-tower resin in vitro drug delivery and regeneration system and method, belonging to the field of resin regeneration technology. Background Technology

[0002] The condensate treatment system of the thermal power plant adopts a medium-pressure polishing system, which consists of two units, each with three mixed beds. The six mixed beds share a single high-tower resin in vitro separation and regeneration system.

[0003] When the effluent quality of the mixed bed in the fine treatment system does not meet the minimum requirements, it is necessary to separate, regenerate, and mix the resin in the mixed bed. The resin first enters a resin separation tower, where anion and cation resins are separated into stratified layers through a primary separation process. Then, the separated anion and cation resins are respectively transferred to anion / cation resin regeneration towers for acid-base regeneration. Finally, the anion resin from the anion resin regeneration tower is transferred to the cation resin regeneration tower for a resin mixing process. The mixed resin obtained in the cation resin regeneration tower is then returned to the mixed bed. In the high-tower method of resin in vitro separation and regeneration, the high-tower method of resin in vitro chemical regeneration, i.e., the acid-base chemical regeneration process of the separated anion and cation resins in the anion / cation resin regeneration tower, plays a decisive role in the regeneration effect. In traditional acid-base regeneration processes, the acid and alkali are driven into the resin regeneration tower from the bottom of the mixed bed by dilution water. Simultaneously, workers manually adjust the acid-base dilution valves through a glass observation window inside the regeneration tower to control the transfer of anion and cation resins, as well as the total amount and concentration of acid and alkali. This process easily leads to regeneration solution deviation, and the regeneration solution struggles to break up clumps of resin. Furthermore, the control over the acid-base regeneration process is relatively crude and highly susceptible to human error. Therefore, existing high-tower external resin regeneration processes suffer from numerous drawbacks, including poor regeneration efficiency with mixed bed feeding, waste of acid and alkali reagents, and excessive wastewater generation. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a high-tower resin in vitro drug regeneration system and method, which can avoid the phenomenon of regeneration liquid deviation in the resin regeneration tower, control the amount of acid and alkali fed in, and improve the efficiency of the acid and alkali drug regeneration process.

[0005] To achieve the above objectives, the present invention is implemented using the following technical solution:

[0006] On the one hand, the present invention provides a high-tower method for in vitro drug delivery and regeneration of resins, including an anion resin regeneration tower and a cation resin regeneration tower;

[0007] The input end of the cation regeneration tower is connected to the output end of the anion resin of the resin separation tower;

[0008] The input end of the anion regeneration tower is connected to the output end of the cation resin of the resin separation tower;

[0009] Each resin regeneration tower is equipped with a drug inlet module on its outer periphery;

[0010] The drug delivery module includes multiple drug delivery devices;

[0011] Each drug delivery device includes a ring-shaped pipeline;

[0012] A distributor is connected to the outside of the ring pipeline, and the distributor is connected to the acid inlet module or the alkali inlet module;

[0013] Multiple drug inlet pipes are installed inside the ring-shaped pipeline.

[0014] Each inlet pipe is connected to the resin regeneration tower.

[0015] Furthermore, the angle between each inlet pipe and the annular pipeline is 30-60°.

[0016] Furthermore, each resin regeneration tower is equipped with a resin level gauge, and a pneumatic valve is installed between the resin level gauge and the resin regeneration tower.

[0017] Furthermore, the acid injection module includes an acid storage tank;

[0018] The acid storage tank is equipped with an acid metering box at its output end. The output end of the acid metering box is connected to the water source output end and then connected to a distributor.

[0019] Furthermore, the alkali inlet module includes an alkali storage tank;

[0020] The alkali storage tank is equipped with an alkali metering box at its output end. The output end of the alkali metering box is connected to the output end of the hot water tank and then connected to a distributor.

[0021] Furthermore, an aerator is provided at the lower end of the diverter;

[0022] The aerator is connected to the air storage tank.

[0023] On the other hand, the present invention provides a method for in vitro drug delivery and regeneration of resin using a high-tower method, which is implemented using the above-mentioned in vitro drug delivery and regeneration system for high-tower resin.

[0024] The high-tower resin in vitro drug delivery regeneration method includes the following steps:

[0025] Obtain the resin level height inside the resin regeneration tower;

[0026] Obtain the acid level in the acid metering tank and the alkali level in the alkali metering tank;

[0027] In response to the resin level being within the preset height range, the required amounts of acid and alkali are calculated based on the resin level.

[0028] Based on the size parameters of the alkali metering box and the acid metering box, as well as the preset anti-drain height, the acid demand height, alkali demand height, acid safety height, and alkali safety height are determined by using the acid demand and alkali demand.

[0029] In response to the fact that the safe height for acid use is less than the acid level height and the alkali level height is less than the safe height for alkali use, the metering pumps and aerators at the output ends of each metering tank are started, so that the acid in the acid metering tank at the required acid level and the alkali in the alkali metering tank at the required alkali level are pumped into the cation regeneration tower and the anion regeneration tower, respectively, and mixed and reacted with the resin in a swirling manner in the resin regeneration tower to obtain anion regenerated resin and cation regenerated resin.

[0030] Furthermore, the calculation of acid and alkali requirements based on resin level includes the following formula:

[0031]

[0032] maxM al =Q * M al

[0033] maxM ac =Q * M ac

[0034] In the formula, Q * Q is the average per-unit value of the cumulative operating flow rate of the mixed bed from its self-regeneration and commissioning to its withdrawal due to water quality exceeding limits. max M represents the maximum cumulative operating flow rate of the mixed bed from its self-regeneration and commissioning to its withdrawal due to water quality exceeding limits during the statistical process. al M represents the average amount of alkali required for regenerating a unit volume of anion exchange resin. ac Mmax represents the average amount of acid required for regenerating a unit volume of cation exchange resin. al MaxM represents the maximum alkali requirement for regenerating a unit volume of anion exchange resin. ac This represents the maximum amount of acid required for regenerating a unit volume of cation exchange resin.

[0035] Furthermore, the resin regeneration tower includes an anion resin regeneration tower and a cation resin regeneration tower of the same size;

[0036] The acid metering box and the alkali metering box are the same size.

[0037] Furthermore, the determination of the acid and alkali demand heights, as well as the acid and alkali safety heights, based on the dimensional parameters of the alkali and acid metering tanks and the preset anti-drain height, using the acid and alkali demand quantities, includes the following formula:

[0038]

[0039] In the formula, Δh al Due to the high demand for alkali, H al For safe use of alkali, Δh ac Due to the high demand for acid, H ac For acid safety, maxM al MaxM represents the maximum alkali requirement for regenerating a unit volume of anion exchange resin. ac h represents the maximum acid requirement for regenerating a unit volume of cation exchange resin. ar h represents the height of the anion resin level inside the anion resin regeneration tower. cr r1 is the height of the cation regeneration tower body, r2 is the radius of the regeneration tower body, r1 is the radius of the metering box, and h is the height of the cation regeneration tower body. s This is the preset anti-missile height.

[0040] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0041] 1. This invention uses a multi-layer vortex feeder to ensure that acid and alkali solutions flow and are pressurized evenly into the resin regeneration tower, so that the resin in each part of the resin regeneration tower can be effectively regenerated.

[0042] 2. This invention uses a multi-layer swirl feeder to feed acid and alkali at multiple points, which can avoid the phenomenon of regeneration liquid deviation in the resin regeneration tower.

[0043] 3. Since the resin in the resin regeneration tower is already in a state of being soaked and floating in water, this invention uses a multi-layer vortex feeder to make the feed direction at multiple points uniform with the rotation angle of the resin regeneration tower, so that the acid and alkali solutions form a stable vortex inside the resin regeneration tower, thereby enabling the resin and acid and alkali solutions to fully and effectively contact and react, improving the efficiency of the acid and alkali feed regeneration process.

[0044] 4. This invention, by installing an aerator on the distributor, not only pressurizes the acid and alkali solutions but also transforms them into a saturated acid-alkali bubble solution before entering the resin regeneration tower. When the saturated acid-alkali bubble solution is injected into the resin regeneration tower and collides with the resin particles, the bubbles will burst. The force generated by the surface tension after the bubbles burst allows the acid-alkali dilution to better penetrate into the accumulated resin, avoiding the problem that some lumpy resin cannot be regenerated due to the inability to disperse the resin. In addition, the impact of the bubble group on the resin can achieve a certain degree of dispersion and stirring effect, which fully increases the contact area between the resin and the acid-alkali dilution, thereby improving the resin regeneration effect.

[0045] 5. This invention determines the required acid and alkali dosages, as well as the safe acid and alkali dosage levels, by measuring the required acid and alkali dosages. This avoids over-reliance on staff experience and subjective errors, and effectively reduces staffing requirements, saving human resource costs.

[0046] 6. By introducing the per-unit value and average value of the cumulative operating flow rate, this invention can comprehensively consider objective factors such as different mixed bed specifications and different resin parameters to determine the maximum acid and alkali demand for resin regeneration per unit volume, thereby further determining the safe height for using acid or alkali. This not only improves the safety of the drug regeneration system of this invention, but also improves the applicability of the drug regeneration method of this invention.

[0047] 7. Compared with the prior art, the anion regeneration resin and cation regeneration resin obtained by the drug feeding and regeneration method of the present invention can significantly increase the cumulative flow rate of the high-speed mixed bed operation. Therefore, it can significantly reduce the number of drug feeding and regeneration times and the amount of acid and alkali used, and generate less industrial wastewater. Therefore, the present invention has high environmental protection. Attached Figure Description

[0048] Figure 1 The diagram shown is a schematic representation of an embodiment of the high-tower method resin in vitro drug delivery and regeneration system of the present invention.

[0049] Figure 2 The diagram shown is a structural schematic of one embodiment of the drug delivery device of the present invention;

[0050] Figure 3 The diagram shown is a flowchart of an embodiment of the high-tower method for in vitro drug delivery and regeneration of resin according to the present invention.

[0051] Figure 4 The diagram shown is a flowchart of an embodiment of the high-tower method for in vitro drug delivery and regeneration of resin according to the present invention.

[0052] Figure 5 The figure shows the relationship between the historical cumulative flow per unit value of the mixed bed and the historical acid and alkali requirements for regeneration per unit volume of resin in one embodiment of an existing resin regeneration method.

[0053] Figure 6 The figure shows the per-unit value of the cumulative flow rate of the mixed bed in one embodiment of the high-tower method for in vitro drug delivery and regeneration of resin according to the present invention.

[0054] In the diagram: 1. Anion resin regeneration tower; 11. Anion resin level gauge; 2. Cation resin regeneration tower; 21. Cation resin level gauge; 3. Resin separation tower; 41. Inlet device; 411. Circular pipeline; 412. Inlet pipe; 5. Diverter; 61. Pneumatic valve; 62. Water source; 63. Aerator; 64. Gas storage tank; 71. Acid storage tank; 72. Acid metering tank; 73. Acid transfer pump; 74. Acid metering pump; 81. Alkali storage tank; 82. Alkali metering tank; 83. Alkali transfer pump; 84. Alkali metering pump; 9. Hot water tank. Detailed Implementation

[0055] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0056] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0057] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0058] Example 1

[0059] This embodiment describes a high-tower resin in vitro drug delivery and regeneration system.

[0060] The high-tower method resin in vitro drug delivery and regeneration system of this embodiment includes an anion resin regeneration tower 1 and a cation resin regeneration tower 2, as referenced. Figure 1 .

[0061] In this embodiment, the input end of the cation regeneration tower 2 is connected to the output end of the anion resin of the resin separation tower 3, as described in the reference. Figure 1 It is used to receive the separated cation resin.

[0062] In this embodiment, the input end of the anion resin regeneration tower 1 is connected to the output end of the cation resin separation tower 3, as described in the reference. Figure 1 It is used to receive the separated anion resin.

[0063] In this embodiment, each resin regeneration tower is equipped with a drug inlet module on its outer periphery, as shown in the reference. Figure 1 .

[0064] The drug feeding module described in this embodiment includes multiple drug feeders 41.

[0065] In application, the drug feeding module includes multiple drug feeders 41 arranged at equal intervals. In actual application, there are three drug feeders 41 arranged at equal intervals.

[0066] In this embodiment, each drug feeder 41 includes a ring-shaped pipe 411, as shown in the reference. Figure 2 .

[0067] In this embodiment, the outer side of the ring pipe 411 is connected to the distributor 5, which is connected to either the acid inlet module or the alkali inlet module. (See reference...) Figure 1 .

[0068] In this embodiment, multiple drug inlet pipes 412 are provided inside the annular pipe 411, as shown in the reference. Figure 2 .

[0069] Each inlet pipe 412 is connected to the resin regeneration tower.

[0070] This invention uses a multi-layer vortex-type feeder to ensure that acid and alkali solutions enter the resin regeneration tower in a uniform flow and pressure, so that the resin in each part of the resin regeneration tower can be effectively regenerated by the feeder.

[0071] This invention uses a multi-layer swirl feeder to introduce acid and alkali at multiple points, which can avoid the phenomenon of regenerated liquid deviation in the resin regeneration tower.

[0072] Example 2

[0073] Based on Example 1, this example details a high-tower method resin in vitro drug delivery and regeneration system.

[0074] In this embodiment, the angle between each inlet pipe 412 and the annular pipe 411 in the high-tower method resin in vitro drug delivery and regeneration system is 30-60°, for reference. Figure 2 .

[0075] Each resin regeneration tower in this embodiment is equipped with a resin level gauge, and a pneumatic valve 61 is provided between the resin level gauge and the resin regeneration tower.

[0076] The acid inlet module in this embodiment includes an acid storage tank 71. An acid metering box 72 is installed at the output end of the acid storage tank 71. The output end of the acid metering box 72 merges with the output end of the water source 62 and is then connected to a distributor 5. (See reference...) Figure 1 .

[0077] The alkali inlet module in this embodiment includes an alkali storage tank 81. An alkali metering box 82 is installed at the output end of the alkali storage tank 81. The output end of the alkali metering box 82 merges with the output end of the hot water tank 9 and is then connected to a distributor 5. (Reference) Figure 1 .

[0078] In application, one output end of water source 62 is connected to the inlet of hot water tank 9. Hot water tank 9 uses heating pipes to heat the water, so that the hot water output from hot water tank 9 and the alkali output from alkali metering tank 82 are combined to dilute the alkali solution and alleviate the phenomenon of alkali crystallization.

[0079] In this embodiment, the lower end of the diverter 5 is equipped with an aerator 63, which is connected to the air storage tank 64. (See reference...) Figure 1 .

[0080] Since the resin in the resin regeneration tower is already in a state of being soaked and floating in water, this invention uses a multi-layer vortex feeder to make the feed direction at multiple points uniform with the rotation angle of the resin regeneration tower, so that the acid and alkali solutions form a stable vortex inside the resin regeneration tower, thereby enabling the resin and acid and alkali solutions to fully and effectively contact and react, improving the efficiency of the acid and alkali feed regeneration process.

[0081] This invention utilizes an aerator installed on a distributor. The aerator not only pressurizes the acid and alkali solutions but also transforms them into a saturated acid-alkali bubble solution before they enter the resin regeneration tower. When this saturated bubble solution is injected into the regeneration tower and collides with the resin particles, the bubbles burst. The surface tension generated by the bursting bubbles allows the diluted acid and alkali solution to penetrate the accumulated resin more effectively, preventing the resin from being unable to disperse and thus avoiding the problem of some lumpy resin failing to contact the acid and alkali solution for regeneration. Furthermore, the impact of the bubble clusters on the resin achieves a certain degree of dispersion and stirring, significantly increasing the contact area between the resin and the diluted acid and alkali solution, thereby improving the resin regeneration effect.

[0082] Example 3

[0083] This embodiment describes a high-tower method for in vitro drug delivery and regeneration of resin.

[0084] The in vitro drug delivery and regeneration method of the high-tower resin in this embodiment is implemented using the high-tower resin in vitro drug delivery and regeneration system described in Example 1 or 2.

[0085] The high-tower method for in vitro drug delivery and regeneration of resin includes the following steps, as referred to... Figure 3 :

[0086] S1 obtains the resin level height inside the resin regeneration tower.

[0087] S2 obtains the acid level height in acid metering tank 72 and the alkali level height in alkali metering tank 82.

[0088] S3 responds to the resin level being within the preset height range and calculates the required acid and alkali quantities based on the resin level.

[0089] Based on the dimensional parameters of the alkali metering tank 82 and the acid metering tank 72, and the preset anti-drain height, S4 determines the acid demand height, alkali demand height, acid safety height, and alkali safety height using the acid and alkali demand amounts.

[0090] S5 responds to the fact that the acid safety height is less than the acid material level height and the alkali material level height is less than the alkali safety height, and starts the metering pumps and aerators 63 at the output ends of each metering tank, so that the acid in the acid metering tank 72 and the alkali in the alkali metering tank 82 are pumped into the cation resin regeneration tower 2 and the anion resin regeneration tower 1 respectively, and react with the resin in a swirling flow in the resin regeneration tower to obtain anion regenerated resin and cation regenerated resin.

[0091] This invention determines the required acid and alkali dosages, as well as the safe acid and alkali dosage levels, by measuring the required acid and alkali dosages. This avoids over-reliance on staff experience and subjective errors, and effectively reduces staffing requirements, saving human resource costs.

[0092] Example 4

[0093] Based on Example 4, this example introduces a high-tower method for in vitro drug regeneration of resin.

[0094] The high-tower method for in vitro drug delivery and regeneration of resin includes the following steps, as referred to... Figure 3 :

[0095] S1 obtains the resin level height inside the resin regeneration tower.

[0096] In application, the resin regeneration tower includes an anion resin regeneration tower 1 and a cation resin regeneration tower 2 of the same size.

[0097] S2 obtains the acid level height in acid metering tank 72 and the alkali level height in alkali metering tank 82.

[0098] In application, the acid metering tank 72 and the alkali metering tank 82 are the same size.

[0099] S3 responds to the resin level being within the preset height range and calculates the required acid and alkali quantities based on the resin level.

[0100] When applying, the required amounts of acid and alkali are calculated using the following formulas:

[0101]

[0102] maxM al =Q * M al

[0103] maxM ac =Q * M ac

[0104] In the formula, Q * Q is the average per-unit value of the cumulative operating flow rate of the mixed bed from its self-regeneration and commissioning to its withdrawal due to water quality exceeding limits. max M represents the maximum cumulative operating flow rate of the mixed bed from its self-regeneration and commissioning to its withdrawal due to water quality exceeding limits during the statistical process. al M represents the average amount of alkali required for regenerating a unit volume of anion exchange resin. ac Mmax represents the average amount of acid required for regenerating a unit volume of cation exchange resin. al MaxM represents the maximum alkali requirement for regenerating a unit volume of anion exchange resin. ac This represents the maximum acid requirement per unit volume of cation exchange resin regeneration. S4 determines the acid and alkali requirement heights, as well as the acid and alkali safety heights, based on the dimensional parameters of the alkali metering tank 82 and the preset anti-drain height, using the acid and alkali requirements.

[0105] When applying these technologies, the required acid and alkali dosages, as well as the safe acid and alkali dosages, are determined by the following formulas:

[0106]

[0107] In the formula, Δh al Due to the high demand for alkali, H al For safe use of alkali, Δh ac Due to the high demand for acid, H ac For acid safety, maxM al MaxM represents the maximum alkali requirement for regenerating a unit volume of anion exchange resin. ac h represents the maximum acid requirement for regenerating a unit volume of cation exchange resin. ar h represents the height of the anion resin level inside the anion resin regeneration tower. cr r1 is the height of the cation regeneration tower body, r2 is the radius of the regeneration tower body, r1 is the radius of the metering box, and h is the height of the cation regeneration tower body.s This is the preset anti-missile height.

[0108] S5 responds to the fact that the acid safety height is less than the acid material level height and the alkali material level height is less than the alkali safety height, and starts the metering pumps and aerators 63 at the output ends of each metering tank, so that the acid in the acid metering tank 72 and the alkali in the alkali metering tank 82 are pumped into the cation resin regeneration tower 2 and the anion resin regeneration tower 1 respectively, and react with the resin in a swirling flow in the resin regeneration tower to obtain anion regenerated resin and cation regenerated resin.

[0109] By introducing the per-unit value and average value of the cumulative operating flow rate, this invention can comprehensively consider objective factors such as different mixed bed specifications and different resin parameters to determine the maximum acid and alkali demand for resin regeneration per unit volume, thereby further determining the safe height for using acid or alkali. This not only improves the safety of the drug regeneration system of this invention, but also improves the applicability of the drug regeneration method of this invention.

[0110] Compared with existing technologies, the anion-regenerated resin and cation-regenerated resin obtained by the drug feeding and regeneration method of the present invention can significantly increase the cumulative flow rate of the mixed bed operation. Therefore, it can significantly reduce the number of drug feeding and regeneration cycles and the amount of acid and alkali used, and will generate less industrial wastewater. Therefore, the present invention has high environmental protection.

[0111] Example 5

[0112] Based on any of Examples 1-4, this example details a high-tower resin in vitro drug delivery regeneration method, referencing... Figure 4 .

[0113] The high-tower method for in vitro resin drug introduction and regeneration in this embodiment is an improvement on the drug introduction and regeneration process in the refining system.

[0114] The anion resin and cation resin, after being processed by the primary and secondary separation processes in resin separation tower 3, are respectively fed into anion resin regeneration tower 1 and cation resin regeneration tower 2.

[0115] S1 obtains the resin level height inside the resin regeneration tower.

[0116] In this embodiment, a PLC is used to control the pneumatic valve 61 between the anion resin regeneration tower 1 and the anion resin level gauge 11, and the pneumatic valve 61 between the cation resin regeneration tower 2 and the cation resin level gauge 21, so as to read the anion resin level height in the anion resin regeneration tower 1 and the cation resin level height in the cation resin regeneration tower 2, and then close each pneumatic valve 61 after reading.

[0117] In application, a pneumatic valve 61 is installed between the resin level gauge and the resin regeneration tower to prevent the resin level gauge from being reduced in life due to chemical corrosion during the acid and alkali feeding process. Therefore, in actual application, the pneumatic valve 61 is opened before reading the resin level height and closed after reading the resin level height.

[0118] S2 obtains the acid level height in acid metering tank 72 and the alkali level height in alkali metering tank 82.

[0119] S3 responds to the resin level being within the preset height range and calculates the required acid and alkali quantities based on the resin level.

[0120] In this embodiment, the PLC is used to compare the read resin level with a preset height range. If the resin level is not within the preset height range, the program resets and sends an alarm message to the DCS screen to warn the on-duty personnel to check the separation effect of the separation process, adjust the separation process, and then re-check and compare the read resin level with the preset height range after it is qualified. If the resin level is within the preset height range, the acid and alkali requirements are calculated based on the resin level.

[0121] Based on the dimensional parameters of the alkali metering tank 82 and the acid metering tank 72, and the preset anti-drain height, S4 determines the acid demand height, alkali demand height, acid safety height, and alkali safety height using the acid and alkali demand amounts.

[0122] If the acid and alkali reserves in the alkali metering tank 82 and acid metering tank 72 are insufficient, it will cause problems such as dry running of the acid and alkali delivery pumps and poor regeneration effect. Therefore, before adding acid and alkali, it is necessary to compare whether the acid safety height is less than the acid material level height and whether the alkali material level height is less than the alkali safety height. If the acid safety height is greater than or equal to the acid material level height, or the alkali material level height is greater than or equal to the alkali safety height, the acid and alkali reserves in the alkali metering tank 82 or acid metering tank 72 need to be added first; if the acid safety height is less than the acid material level height and the alkali material level height is less than the alkali safety height, the acid and alkali demand heights calculated by the method of this embodiment are used to deliver the chemicals to the alkali metering tank 82 or acid metering tank 72.

[0123] In addition, to prevent dry running of the metering solution, a small excess of the reagent needs to be added. Therefore, a preset anti-dry running height h needs to be added to the required acid and alkali dosages. s The safe heights for acid and alkali are obtained. Then, the acid and alkali in the acid storage tank 71 and alkali storage tank 81 are pumped into the acid metering tank 72 and alkali metering tank 82 by the acid transfer pump 73 and alkali transfer pump 83, respectively, so that the acid level in the acid metering tank 72 is greater than the safe height for acid, and the alkali level in the alkali metering tank 82 is greater than the safe height for alkali.

[0124] When using alkaline drugs, it is necessary to pay attention to the temperature of the hot water tank 9 because alkaline drugs have crystallization properties. If the water temperature of the hot water tank 9 is lower than the preset temperature, the water in the hot water tank 9 should be heated continuously. The alkaline delivery pump 83 should be started only after the water temperature in the hot water tank 9 is greater than or equal to the preset temperature.

[0125] S5 responds to the fact that the acid safety height is less than the acid level height and the alkali level height is less than the alkali safety height, and starts the metering pumps and aerators 63 at the output of each metering tank, so that the acid in the acid metering tank 72 and the alkali in the alkali metering tank 82 are pumped into the cation regeneration tower 2 and the anion regeneration tower 1 respectively, and react with the resin in a swirling flow in the resin regeneration tower to obtain cation regenerated resin and anion regenerated resin.

[0126] Because acids and alkalis have different flow rates and safety heights, the time required for the alkali metering tank 82 and the acid metering tank 72 to reach the safety height is also different. Therefore, after the material levels in both the alkali metering tank 82 and the acid metering tank 72 reach the safety height, the acid-alkali process control is initiated.

[0127] In this embodiment, the acid metering pump 74 and the alkali metering pump 84 are variable frequency pumps that automatically track the acid and alkali concentrations based on a DCS system, ensuring that the concentrations of the diluted acid and alkali are always maintained within the optimal range and linearly during the resin regeneration process. Once the diluted acid and alkali solutions fill the distributor 5, the valve at the output end of the disc aerator is activated to deliver air bubbles into the distributor 5, converting the acid and alkali solutions into a saturated acid-alkali bubble solution. When this saturated solution is injected into the resin regeneration tower and collides with the resin particles, the bubbles burst. The surface tension generated by the bursting bubbles allows the diluted acid and alkali solutions to penetrate the accumulated resin more effectively. Furthermore, the impact of the bubble clusters on the resin achieves a certain degree of dispersion and agitation, significantly increasing the contact area between the resin and the diluted acid and alkali solutions, thereby improving the resin regeneration effect.

[0128] During application, when the material level in any metering tank falls back to the preset anti-dry-firing height h... s After that, the acid-base process is stopped and the subsequent steps of the resin-based drug regeneration process are connected.

[0129] Example 6

[0130] Based on any one of Examples 1-5, this example details a high-tower method for in vitro drug regeneration of resin.

[0131] The high-tower method for in vitro resin drug introduction and regeneration in this embodiment is an improvement on the drug introduction and regeneration process in the refining system.

[0132] The anion resin and cation resin, after being processed by the primary and secondary separation processes in resin separation tower 3, are respectively fed into anion resin regeneration tower 1 and cation resin regeneration tower 2.

[0133] In engineering, the parameter that best reflects the quality of mixed-bed resin regeneration is the average cumulative operating flow rate Q of the mixed bed from its commissioning after regeneration until it fails due to excessive water quality. In data statistics, the three maximum and minimum values ​​of the cumulative operating flow rate, which may be due to special operating conditions, should be removed to ensure the data's representativeness. The data that objectively reflects the amount of acid or alkali fed during resin regeneration is the amount of acid or alkali required per ton of resin, i.e., the average amount of acid or alkali required for regeneration per unit volume of cation exchange resin.

[0134] Differences in various indicators of mixed bed will affect the cumulative operating flow. In order to avoid differences caused by different mixed bed indicators, this embodiment determines the maximum value of the acid and alkali demand to improve the applicability of the method in this embodiment.

[0135] In application, the average per-unit value of the cumulative operating flow rate Q of the mixed bed from its self-regeneration and commissioning to its withdrawal due to water quality exceeding limits is used. * This allows the cumulative operating data of different mixed beds to avoid the influence of the resin quantity or resin performance itself, and objectively reflect the resin regeneration quality.

[0136]

[0137] In the formula, Q * Q is the average per-unit value of the cumulative operating flow rate of the mixed bed from its self-regeneration and commissioning to its withdrawal due to water quality exceeding limits. max This refers to the maximum cumulative operating flow rate of the mixed bed from its self-regeneration and commissioning to its withdrawal due to water quality exceeding limits during the statistical process.

[0138] This embodiment uses the average per-unit value Q of the cumulative operating flow rate of each mixed bed. * By observing the distribution pattern of the average acid and alkali requirements per unit volume of resin regeneration, the maximum acid and alkali requirements per unit volume of anion resin regeneration can be obtained.

[0139] maxM al =Q * M al

[0140] maxM ac =Q * M ac

[0141] In the formula, M al M represents the average amount of alkali required for regenerating a unit volume of anion exchange resin.ac Mmax represents the average amount of acid required for regenerating a unit volume of cation exchange resin. al MaxM represents the maximum alkali requirement for regenerating a unit volume of anion exchange resin. ac This represents the maximum amount of acid required for regenerating a unit volume of cation exchange resin.

[0142] In application, since the acid-base metering tank 82 and the space for storing resin in the resin regeneration tower are approximately standard cylinders, and the anion resin regeneration tower 1 and the cation resin regeneration tower 2 have the same dimensions, as do the acid metering tank 72 and the alkali metering tank 82, the required acid-base volume and resin volume are calculated using the following formula:

[0143]

[0144] Where, Δh al Due to the high demand for alkali, Δh ac Due to the high demand for acid, V al V represents the volume of alkali required. ac V represents the volume of acid required. ar V represents the volume of the anion exchange resin. cr R1 is the volume of the cation exchange resin, r2 is the radius of the resin regeneration tower, and r1 is the radius of the metering box.

[0145] The average acid requirement for regenerating a unit volume of anion and cation exchange resins in this embodiment includes the following formula:

[0146]

[0147] In the formula, M al M represents the average amount of alkali required for regenerating a unit volume of anion exchange resin. ac This represents the average amount of acid required for regenerating a unit volume of cation exchange resin.

[0148] Formula (4) allows the DCS system to automatically calculate the amount of acid and alkali to be pumped into the acid and alkali metering tank by using a simple algorithm based on the resin level information obtained from the anion and cation beds, thereby achieving precise control.

[0149] Example 7

[0150] Based on any one of Examples 1-6, this example details a high-tower method for in vitro drug regeneration of resin.

[0151] The parameters of some components in the high-tower resin in vitro drug delivery and regeneration system used in this embodiment are shown in Table 1:

[0152] Table 1. Parameters of some components in the high-tower resin in vitro drug delivery and regeneration system.

[0153]

[0154] This embodiment collects historical data from the previous 18 months of existing high-tower resin in vitro separation and regeneration methods, specifically the historical cumulative operating flow rate of the mixed bed from its initial operation after regeneration until its withdrawal due to water quality exceeding limits, as well as the historical acid and alkali requirements per unit volume of resin regeneration. Based on the collected historical data, the per-unit values ​​of the historical cumulative flow rate for six mixed beds are determined. A comprehensive analysis of the patterns between the historical cumulative flow rate per-unit value and the historical acid and alkali requirements per unit volume of resin regeneration for each mixed bed is then conducted, referencing... Figure 5 This yields the maximum acid and alkali requirements per unit volume of anion exchange resin for regeneration.

[0155] maxM al =0.465t

[0156] maxM ac =0.505t.

[0157] In this embodiment, the radius of the metering tank is r1 = 0.708m, and the radius of the resin regeneration tower is r2 = 0.81m. Therefore, the required acid and alkali flow rates are calculated using the following formulas:

[0158]

[0159] In this embodiment, the anion and cation resins, after being processed by the primary and secondary separation processes in resin separation tower 3, are respectively fed into anion resin regeneration tower 1 and cation resin regeneration tower 2. Resin regeneration is performed according to the method described in Example 6. The cumulative operating flow rate of the mixed bed from its initial operation after regeneration until it fails due to water quality exceeding limits, as well as the acid and alkali requirements per unit volume of resin regeneration, are recorded. Based on the collected data, the per-unit value of the cumulative flow rate of the six mixed beds is determined, with reference to... Figure 6 .

[0160] After resin regeneration according to the method described in Example 6, the average per-unit value of the cumulative operating flow rate of the mixed bed from its initial operation after regeneration to its withdrawal due to water quality exceeding limits was 0.997. This represents an improvement of 10.3% compared to the average per-unit value of 0.904 for the historical cumulative operating flow rate of the mixed bed from its initial operation after regeneration to its withdrawal due to water quality exceeding limits. In other words, the resin regeneration method of this embodiment improves the resin regeneration effect by 10.3% compared to the traditional resin regeneration process.

[0161] According to the data statistics, the resin regeneration method described in Example 6 can directly save 542.59 tons of acid chemicals and 497.38 tons of alkali chemicals per year, and reduce the use of brine and wastewater discharge by 14,400 tons. The indirect benefits include reducing the amount of wastewater treatment coagulant solution by 1,152 tons and reducing the amount of acid and alkali chemicals required for pH adjustment by 50 tons each.

[0162] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0163] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0164] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0165] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0166] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A method for in vitro drug delivery regeneration of resin using a high-tower process, characterized in that, Includes the following steps: Obtain the resin level height inside the resin regeneration tower; Obtain the acid level in the acid metering tank (72) and the alkali level in the alkali metering tank (82); Since the resin level is within the preset range, the required acid and alkali quantities are calculated based on the resin level. The expression is as follows: ； In the formula, This represents the average per-unit value of the cumulative operating flow rate of the mixed bed from its self-regeneration and commissioning until it fails due to excessive water quality. This represents the average cumulative operating flow rate of the mixed bed from its self-regeneration and commissioning until it was decommissioned due to water quality exceeding limits. This refers to the maximum cumulative operating flow rate of the mixed bed from its self-regeneration and commissioning to its withdrawal due to water quality exceeding limits during the statistical process. This represents the average amount of alkali required for regenerating a unit volume of anion exchange resin. This represents the average amount of acid required for regenerating a unit volume of cation exchange resin. This represents the maximum alkali requirement for regenerating a unit volume of anion exchange resin. This represents the maximum amount of acid required for regenerating a unit volume of cation exchange resin. Based on the size parameters of the alkali metering box (82) and the acid metering box (72) and the preset anti-drain height, the acid demand height and alkali demand height, as well as the acid safety height and alkali safety height, are determined by using the acid demand and alkali demand. In response to the fact that the safe height for acid use is less than the acid level height and the alkali level height is less than the safe height for alkali use, the metering pumps and aerators (63) at the output ends of each metering tank are started, so that the acid in the acid metering tank (72) and the alkali in the alkali metering tank (82) are pumped into the cation resin regeneration tower (2) and the anion resin regeneration tower (1) respectively, and they are mixed and reacted with the resin in a swirling manner in the resin regeneration tower to obtain anion regenerated resin and cation regenerated resin. The high-tower method for in vitro drug delivery and regeneration of resin is achieved through a high-tower method for in vitro drug delivery and regeneration of resin, which includes an anion resin regeneration tower (1) and a cation resin regeneration tower (2). The input end of the cation regeneration tower (2) is connected to the output end of the anion resin of the resin separation tower (3); The input end of the anion resin regeneration tower (1) is connected to the output end of the cation resin of the resin separation tower (3); Each resin regeneration tower is equipped with a drug inlet module on its outer periphery; The drug delivery module includes multiple drug delivery devices (41); Each drug feeder (41) includes a ring-shaped pipeline (411). The outside of the ring pipeline (411) is connected to the distributor (5), and the distributor (5) is connected to the acid inlet module or the alkali inlet module; Multiple drug inlet pipes (412) are provided inside the ring pipeline (411). Each inlet pipe (412) is connected to the resin regeneration tower.

2. The high-tower method for in vitro regeneration of resin via drug delivery according to claim 1, characterized in that, The resin regeneration tower includes an anion resin regeneration tower (1) and a cation resin regeneration tower (2) of the same size. The acid metering tank (72) and the alkali metering tank (82) are the same size.

3. The high-tower method for in vitro regeneration of resin via drug delivery according to claim 2, characterized in that, The determination of the acid demand height, alkali demand height, acid safety height, and alkali safety height based on the dimensional parameters of the alkali metering tank (82) and the acid metering tank (72) and the preset anti-drain height, using the acid demand and alkali demand, includes the following formulas: ； In the formula, Due to the high demand for alkali, For the safety of using alkali, Due to the high demand for acid, For the safety of using acid, This represents the maximum alkali requirement for regenerating a unit volume of anion exchange resin. This represents the maximum acid requirement per unit volume of cation exchange resin for regeneration. This refers to the anion resin level height inside the anion resin regeneration tower. This refers to the height of the cation resin level inside the cation resin regeneration tower. The radius of the resin regeneration tower is [missing information]. The radius of the measuring box, This is the preset anti-missile height.

4. The high-tower method for in vitro regeneration of resin via drug delivery according to claim 1, characterized in that, The angle between each inlet pipe (412) and the annular pipe (411) is 30-60°.

5. The high-tower method for in vitro regeneration of resin via drug delivery according to claim 1, characterized in that, Each resin regeneration tower is equipped with a resin level gauge, and a pneumatic valve (61) is installed between the resin level gauge and the resin regeneration tower.

6. The high-tower method for in vitro regeneration of resin via drug delivery according to claim 1, characterized in that, The acid inlet module includes an acid storage tank (71). The acid storage tank (71) is equipped with an acid metering box (72) at its output end. The output end of the acid metering box (72) is connected to the water source (62) and then connected to a distributor (5).

7. The high-tower method for in vitro regeneration of resin via drug delivery according to claim 1, characterized in that, The alkali inlet module includes an alkali storage tank (81). The output end of the alkali storage tank (81) is equipped with an alkali metering box (82), and the output end of the alkali metering box (82) is connected to the output end of the hot water tank (9) and then connected to the distributor (5).

8. The high-tower method for in vitro regeneration of resin via drug delivery according to claim 1, characterized in that, The lower end of the diverter (5) is provided with an aerator (63). The aerator (63) is connected to the air storage tank (64).

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