Ion exchanger discharging system and ion exchange system

By designing the ion exchanger discharge system, the coordinated work of infusion and suction components is used to realize the automation and efficiency of resin replacement, solving the problems of resin replacement time and material loss in the prior art, and improving the continuity and stability of production.

CN120094655APending Publication Date: 2025-06-06CHINA ENFI ENG CORP +1
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Patent Information

Application Number
CN202510501972.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2025-06-06

AI Technical Summary

Technical Problem

When the existing ion exchanger is replaced, the operation is cumbersome and time-consuming, resulting in the equipment downtime prolonged, and the resin particles are prone to scattering, causing material loss.

Method used

An ion exchanger discharge system is designed, including infusion assembly and suction assembly. Through the coordinated work of the infusion pump and suction pump, the liquid delivery and resin extraction are automated and efficient. The closed pipeline design is adopted to avoid the scattering of resin particles.

Benefits of technology

It improves the efficiency of resin replacement, shortens equipment downtime, reduces material losses, improves production continuity and stability, and brings economic and environmental benefits to the enterprise.

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Abstract

The invention provides an ion exchanger discharging system and an ion exchange system.The ion exchanger discharging system comprises an ion exchanger, a liquid conveying assembly and a suction assembly, the ion exchanger comprises a reaction cavity and a filter screen, the reaction cavity is divided into a first cavity and a second cavity, and the first cavity and the second cavity are oppositely located on the two sides of the filter screen; the liquid conveying assembly comprises a liquid storage bin, a liquid conveying pump and a liquid conveying pipeline, one end of the liquid conveying pipeline is connected with the liquid storage bin, the other end of the liquid conveying pipeline is connected with the second cavity, and the liquid conveying pump is arranged on the liquid conveying pipeline and used for promoting liquid in the liquid storage bin to flow to the second cavity; the suction assembly comprises a suction pipeline, a resin storage bin and a suction pump, one end of the suction pipeline is connected with the first cavity, the other end of the suction pipeline is connected with the resin storage bin, and the suction pump is arranged on the suction pipeline and used for promoting resin in the first cavity to flow to the resin storage bin. The resin replacement efficiency can be improved, and the production continuity and stability are improved.
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Description

Technical Field

[0001] The invention relates to the technical field of ion exchange, in particular to an ion exchanger unloading system and an ion exchange system. Background Art

[0002] Ion exchange equipment is an important equipment in the process of separation and purification of substances. During the operation of the ion exchanger, the resin particle layer filled in it will become saturated with adsorption, and the resin particles need to be replaced to restore the performance of the ion exchanger.

[0003] In the related technology of unloading resin particles in ion exchangers, the specific operation is that after the equipment is shut down, the operator opens the inspection port on the top or side of the column, and then removes the resin particles by manual shoveling, pneumatic suction, etc. This unloading method requires a long unloading time, which will prolong the equipment downtime; and the resin particles are also easy to scatter from the inspection port or the surrounding gaps, resulting in material loss and increasing the company's production costs. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the embodiments of the present invention provide an ion exchanger unloading system and an ion exchange system, which can improve the efficiency of resin replacement and improve the continuity and stability of production.

[0005] The ion exchanger unloading system provided in an embodiment of the present invention comprises an ion exchanger, an infusion component and a suction component, wherein the ion exchanger comprises a reaction chamber and a filter screen, wherein the reaction chamber is divided into a first chamber and a second chamber, wherein the first chamber and the second chamber are relatively located on two sides of the filter screen; the infusion component comprises a liquid storage tank, an infusion pump and an infusion pipeline, wherein one end of the infusion pipeline is connected to the liquid storage tank, and the other end of the infusion pipeline is connected to the second chamber, and the infusion pump is arranged on the infusion pipeline, and the infusion pump is used to cause the liquid in the liquid storage tank to flow to the second chamber; the suction component comprises a suction pipeline, a resin storage tank and a suction pump, wherein one end of the suction pipeline is connected to the first chamber, and the other end of the suction pipeline is connected to the resin storage tank, and the suction pump is arranged on the suction pipeline, and the suction pump is used to cause the resin in the first chamber to flow to the resin storage tank.

[0006] In summary, the ion exchanger unloading system provided by the embodiment of the present invention can ensure the stable and reliable liquid delivery and resin extraction process through the coordinated work of the infusion component and the suction component, which helps to improve the efficiency of resin replacement and realize the automation and efficiency of the resin replacement process. In addition, the ion exchanger unloading system adopts a closed pipeline design, which can also effectively avoid the scattering of resin particles and the loss of materials, reduce pollution to the production environment, improve the continuity and stability of production, and bring significant economic and environmental benefits to the production operation of the enterprise.

[0007] In some embodiments, the suction pipeline includes a straight pipe section and a bent pipe section connected to each other, and a suction port is provided on the bent pipe section, and the opening of the suction port is arranged toward the filter screen.

[0008] In some embodiments, the bent tube section is located in the first chamber, the suction port is located on the central axis of the first chamber, and the distance from the suction port to the filter is set to 3 mm to 10 mm.

[0009] In some embodiments, an overflow port is provided on the resin storage bin, and a liquid return pipeline is provided between the overflow port and the liquid storage bin.

[0010] In some embodiments, the overflow port is disposed at the upper middle portion of the resin storage bin, and a screen is disposed at the overflow port.

[0011] In some embodiments, the infusion assembly further comprises a first switch valve, which is disposed on the infusion pipeline and is located between the infusion pump and the second chamber; the suction assembly further comprises a second switch valve, which is disposed on the suction pipeline and is located between the first chamber and the suction pump;

[0012] And / or, the suction pump is configured as a diaphragm pump.

[0013] In some embodiments, the first chamber is located above the second chamber in the height direction of the ion exchanger, the resin storage bin is disposed above the ion exchanger, and a resin delivery pipeline is disposed between the resin storage bin and the first chamber of the ion exchanger.

[0014] In some embodiments, a third switch valve is provided on the resin delivery pipeline, and a level meter is provided on the ion exchanger. The level meter is used to monitor the height change of the resin material in the reaction chamber, and the third switch valve is used to control the on-off of the resin delivery pipeline according to the height change of the resin material collected by the level meter.

[0015] In addition, the ion exchange system provided by the present invention includes a feed storage bin, a feed pipeline, a discharge storage bin, a discharge pipeline and the ion exchanger unloading system provided in any of the above embodiments, and the two ends of the feed pipeline are correspondingly connected to the feed storage bin and the first chamber, and the two ends of the discharge pipeline are correspondingly connected to the second chamber and the discharge storage bin.

[0016] In some embodiments, a discharge pump is provided on the discharge pipeline, a fourth switch valve is provided on the feed pipeline, and a fifth switch valve is provided on the discharge pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an ion exchanger unloading system provided in one embodiment of the present invention.

[0018] Figure 2 It is a schematic diagram of the structure of an ion exchange system provided in one embodiment of the present invention.

[0019] Reference numerals:

[0020] 10. ion exchanger; 11. reaction chamber; 111. first chamber; 112. second chamber; 12. filter screen; 13. material level meter; 14. flow meter;

[0021] 20. Infusion assembly; 21. Liquid storage tank; 22. Infusion pump; 23. Infusion pipeline; 24. First switch valve;

[0022] 30. Suction assembly; 31. Suction pipeline; 311. Straight pipe section; 312. Bend pipe section; 313. Suction port; 32. Resin storage bin; 321. Overflow port; 322. Screen; 323. Discharge valve; 33. Suction pump; 34. Liquid return pipeline; 35. Second switch valve;

[0023] 41. Resin delivery pipeline; 42. Third switch valve;

[0024] 51. Feed storage bin; 52. Feed pipeline; 53. Feed pump; 54. Fourth switch valve;

[0025] 61. Discharge storage bin; 62. Discharge pipeline; 63. Discharge pump; 64. Second switch valve. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0027] like Figure 1As shown, an embodiment of the present invention provides an ion exchanger unloading system, which includes an ion exchanger 10, an infusion assembly 20 and a suction assembly 30. The ion exchanger 10 includes a reaction chamber 11 and a filter 12. The reaction chamber 11 is divided into a first chamber 111 and a second chamber 112. The first chamber 111 and the second chamber 112 are relatively located on both sides of the filter 12. The infusion assembly 20 includes a liquid storage tank 21, an infusion pump 22 and an infusion pipeline 23. One end of the infusion pipeline 23 is connected to the liquid storage tank 21, and the other end of the infusion pipeline 23 is connected to the second chamber 112. The infusion pump 22 is arranged on the infusion pipeline 23, and the infusion pump 22 is used to promote the liquid in the liquid storage tank 21 to flow to the second chamber 112. The suction assembly 30 includes a suction pipeline 31, a resin storage bin 32 and a suction pump 33. One end of the suction pipeline 31 is connected to the first chamber 111, and the other end of the suction pipeline 31 is connected to the resin storage bin 32. The suction pump 33 is arranged on the suction pipeline 31, and the suction pump 33 is used to cause the resin in the first chamber 111 to flow to the resin storage bin 32.

[0028] Specifically, during the operation of the ion exchanger 10, resin is stored in the first chamber 111, and the ionic fluid to be treated will undergo an exchange reaction with the resin in the first chamber 111. The exchanged fluid will continue to flow to the second chamber 112 until it is discharged from the ion exchanger 10. When the resin in the first chamber 111 of the ion exchanger 10 needs to be replaced due to adsorption saturation or other reasons, first, the infusion pipeline 23 starts to work and transports the pre-prepared liquid (such as water, cleaning liquid, etc.) in the liquid storage tank 21 to the second chamber 112. These liquids form a certain pressure and flow environment in the second chamber 112, which is helpful for the subsequent extraction and replacement of the resin.

[0029] Next, the suction pump 33 is started to generate a strong suction force through the suction pipeline 31. Under the action of the suction force, the mixture of the resin and the conveying liquid in the first chamber 111 is quickly extracted and flows along the suction pipeline 31 to the resin storage bin 32. As the suction process continues, the resin in the first chamber 111 is gradually emptied, thereby completing the unloading operation of the resin in the ion exchanger 10.

[0030] In summary, the ion exchanger unloading system provided in the embodiment of the present invention can ensure the stable and reliable liquid delivery and resin extraction process through the coordinated work of the infusion component 20 and the suction component 30, which helps to improve the efficiency of resin replacement and realizes the automation and efficiency of the resin replacement process. In addition, the ion exchanger unloading system adopts a closed pipeline design, which can also effectively avoid the scattering of resin particles and the loss of materials, reduce pollution to the production environment, improve the continuity and stability of production, and bring significant economic and environmental benefits to the production operation of the enterprise.

[0031] In this embodiment, the ion exchanger may be provided in plurality, and the infusion pipeline and the suction pipeline may have a plurality of branch pipes, and the branch pipes are connected to the ion exchangers in a one-to-one correspondence. Figure 1 As shown, in this embodiment, two ion exchangers are provided.

[0032] In some embodiments, the suction pipeline 31 includes a straight pipe section 311 and a bent pipe section 312 connected to each other, and a suction port 313 is provided on the bent pipe section 312, and the opening of the suction port 313 is arranged toward the filter screen 12. The straight pipe section 311 can be a relatively regular and stable fluid channel, which reduces the resistance of the mixed fluid composed of resin and liquid during the flow process, can maintain a relatively stable flow rate and flow direction, and reduce the suction force loss of the suction pump 33. The bent pipe section 312 can change the suction direction, so that the suction port 313 can be directly arranged toward the filter screen 12, so that the resin deposited on the filter screen 12 can be more effectively sucked into the suction pipeline 31.

[0033] Furthermore, the suction port 313 is located on the central axis of the first chamber 111, and the distance between the suction port 313 and the filter screen 12 is set to 3 mm to 10 mm. Among them, the ion exchanger 10 is a cylindrical structure, and the suction port 313 is located on the central axis of the first chamber 111, that is, the suction port 313 is located at the center of the cylindrical ion exchanger, in the mainstream area of ​​fluid flow, to ensure that the mixed fluid (a mixture of resin and water) can flow smoothly to the suction port 313, avoiding the problem of resin accumulation or uneven suction caused by fluid flow disorder.

[0034] Secondly, for the spacing between the suction port 313 and the filter 12, when the spacing is less than 3 mm, the distance between the suction port 313 and the filter 12 is too close, which will cause the suction port 313 to directly contact the resin particles or impurities on the surface of the filter 12, and it will not be possible to effectively suck the resin particles attached to the deeper layers or other positions of the filter 12. Especially near the inner wall of the ion exchanger 10, the resin is easy to accumulate. In this case, it is easy to cause the suction port 313 to be blocked, affecting the normal operation of the suction system. At the same time, too strong a suction force may cause excessive impact on the filter 12, damage the structure of the filter 12, and reduce its filtering effect and service life.

[0035] When the spacing is greater than 10 mm, the distance between the suction port 313 and the filter screen 12 is too far, resulting in a longer flow path of the fluid from the filter screen 12 to the suction port 313. The suction force will be greatly attenuated when it is transmitted to the vicinity of the filter screen 12, further resulting in poor suction effect, and the resin near the filter screen 12 cannot be effectively sucked into the suction pipeline 31.

[0036] The distance between the suction port 313 and the filter screen 12 is controlled to be 3 mm to 10 mm, which can give full play to the advantages of the cylindrical structure and improve the efficiency and effect of resin suction.

[0037] In some embodiments, an overflow port 321 is provided on the resin storage bin 32, and a liquid return line 34 is provided between the overflow port 321 and the liquid storage bin 21. The resin storage bin 32 usually has a certain volume for accommodating the mixture of resin and liquid sucked from the first chamber 111 by the suction pump 33. As the suction process continues, the amount of mixed fluid in the resin storage bin 32 will continue to increase. When the mixed fluid in the resin storage bin 32 exceeds the position of the overflow port 321, the water in the mixed fluid will enter the liquid return line 34 through the overflow port 321, and then flow smoothly along the pipeline, and finally flow back to the liquid storage bin 21, forming a liquid reflux mechanism.

[0038] This liquid return mechanism can not only effectively prevent the pressure in the resin storage bin 32 from being too high, avoid the risk of damage to the resin storage bin 32 due to overpressure, and ensure the stable operation of the entire unloading system, but also realize the recycling of water resources, reduce water waste, and reduce operating costs.

[0039] Furthermore, the overflow port 321 is disposed in the middle and upper part of the resin storage bin 32, so that as much resin as possible can be stored in the resin storage bin 32, while reducing water. A screen 322 is disposed at the overflow port 321, and the aperture of the screen 322 is smaller than the particle size of the resin particles, so that water and resin can be effectively separated, thereby improving the recovery rate of the resin.

[0040] That is to say, during the operation of the ion exchanger 10, the mixed fluid formed by the resin and the liquid is sucked into the resin storage bin 32 by the suction pump 33. Since the density of the resin particles is usually greater than that of the liquid, under the action of gravity, the resin particles will gradually settle at the bottom of the resin storage bin 32. With the continuous injection of the mixed fluid, the liquid level in the resin storage bin 32 gradually rises. When the liquid level reaches the overflow port 321, a considerable number of resin particles have accumulated at the bottom of the resin storage bin 32, while the upper layer is mainly liquid. At this time, the excess liquid can be discharged in time through the overflow port 321, while most of the resin particles are retained in the resin storage bin 32, thereby achieving maximum storage of the resin in the resin storage bin 32.

[0041] In some embodiments, the infusion component 20 also includes a first switch valve 24, which is disposed on the infusion pipeline 23 and located between the infusion pump 22 and the second chamber 112; the suction component 30 also includes a second switch valve 35, which is disposed on the suction pipeline 31 and located between the first chamber 111 and the suction pump 33.

[0042] When the ion exchanger 10 needs to be unloaded, the operator can realize accurate liquid delivery and effective suction of the mixed fluid by controlling the switch state of the first switch valve 24 and the second switch valve 35 according to actual needs. For example, when the ion exchanger 10 needs to be unloaded, the first switch valve 24 is opened first to deliver the required liquid to the second chamber 112; after waiting for a period of time, the second switch valve 35 is opened, and the suction pump 33 is started to suck the mixed fluid in the first chamber 111 to the resin storage bin 32.

[0043] Optionally, the suction pump 33 can be a diaphragm pump. It should be noted that the diaphragm pump uses a diaphragm to separate the moving parts of the pump from the conveying liquid, and the resin particles will not directly contact the moving parts of the pump, which can effectively avoid wear and damage to the pump and extend the service life of the pump.

[0044] In some embodiments, the first chamber 111 is located above the second chamber 112 in the height direction of the ion exchanger 10, so that ion exchange can be achieved by gravity. The resin storage bin 32 is arranged above the ion exchanger 10, and a resin delivery pipeline 41 is arranged between the resin storage bin 32 and the first chamber 111 of the ion exchanger 10, so that the resin can flow back from the resin storage bin 32 to the first chamber 111 by its own gravity, without the need for additional power equipment, which helps to reduce the operating cost and maintenance cost of the system.

[0045] Furthermore, a third switch valve 42 is provided on the resin delivery pipeline 41, and a level meter 13 is provided on the ion exchanger 10. The level meter 13 is used to monitor the height change of the resin material in the reaction chamber 11, and the third switch valve 42 is used to control the opening and closing of the resin delivery pipeline 41 according to the height change of the resin material collected by the level meter 13.

[0046] Furthermore, the unloading system further includes a discharge valve 323 , and the discharge valve 323 is disposed at the connection between the resin pipeline 41 and the resin storage bin 32 .

[0047] Specifically, when the material level reaches the set upper threshold, the third switch valve 42 can be closed to stop the resin delivery to avoid excessive accumulation of resin; when the level meter 13 detects that the height of the resin material in the reaction chamber 11 is lower than the set lower threshold, the third switch valve 42 can be opened to transport the resin from the resin storage bin 32 to the first chamber 111 to replenish the resin material.

[0048] Furthermore, the ion exchanger unloading system may include a controller, and the controller, the third switch valve 42 and the material level meter 13 are electrically connected. That is, the material level meter 13 monitors the height of the resin material in the reaction chamber 11 in real time and transmits the data to the control system; the control system determines whether the third switch valve 42 needs to be opened or closed according to a preset material level threshold.

[0049] It should be noted that, in some embodiments, the third switch valve 42 can be opened or closed by a controller. In other embodiments, the third switch valve 42 can also be opened or closed manually.

[0050] In this embodiment, the ion exchanger unloading system further includes a plurality of flow meters 14 . The plurality of flow meters 14 can be respectively arranged on the infusion pipeline 23 , and the flow meters and the infusion pipeline 23 are arranged in a one-to-one correspondence.

[0051] In addition, if Figure 2 As shown, an embodiment of the present invention further provides an ion exchange system, which includes a feed storage bin 51, a feed pipeline 52, a discharge storage bin 61, a discharge pipeline 62, and an ion exchanger unloading system provided by any of the above embodiments. The two ends of the feed pipeline 52 are correspondingly connected to the feed storage bin 51 and the first chamber 111, and the two ends of the discharge pipeline 62 are correspondingly connected to the second chamber 112 and the discharge storage bin 61. Among them, the feed storage bin 51 is used to store the fluid to be treated, and the discharge storage bin 61 is used to store the fluid treated by the ion exchanger 10.

[0052] Further, a feed pump 53 is provided on the feed pipeline 52, and a fourth switch valve 54 is provided on the feed pipeline 52. A discharge pump 63 is provided on the discharge pipeline 62, and a fifth switch valve 64 is provided on the discharge pipeline 62. During the operation of the ion exchanger 10, when it is necessary to start feeding, the operator can control the opening degree of the fourth switch valve 54 and adjust the feeding speed of the fluid to transport the material to the first chamber 111 of the ion exchanger 10; and open the fifth switch valve 64, so that the treated fluid is transported to the discharge storage bin 61 through the discharge pipeline 62 under the action of the discharge pump 63.

[0053] Similarly, during the unloading process of the ion exchanger 10, the fourth switch valve 54 and the fifth switch valve 64 can be closed at the same time, and the ion exchanger unloading system can be opened to realize the unloading process of the resin in the ion exchanger 10. In this embodiment, the feed pipeline 52 and the discharge pipeline 62 can also be provided with a flow meter 14.

[0054] In addition, the first switch valve 24, the second switch valve 35, the third switch valve 42, the fourth switch valve 54, the fifth switch valve 64, and the discharge valve 323 can be set as a ball valve, butterfly valve, etc. controlled manually, electrically or pneumatically.

[0055] It should be noted that the ion exchanger unloading system provided in the embodiment of the present application can be applied to the ion exchange system, so the implementation principle of the ion exchange system and the technical effects produced can refer to the corresponding contents in the above-mentioned ion exchanger unloading system embodiment, which will not be repeated here.

[0056] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are 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 understood as a limitation on the present invention.

[0057] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0060] In the present invention, the terms "one embodiment", "some embodiments", etc. mean that the specific features, structures, materials or characteristics described in conjunction 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 can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0061] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An ion exchanger unloading system, characterized in that: include: An ion exchanger, the ion exchanger comprising a reaction chamber and a filter screen, the reaction chamber being divided into a first chamber and a second chamber, the first chamber and the second chamber being relatively located on two sides of the filter screen; An infusion assembly, the infusion assembly comprising a liquid storage tank, an infusion pump and an infusion pipeline, one end of the infusion pipeline is connected to the liquid storage tank, the other end of the infusion pipeline is connected to the second chamber, the infusion pump is arranged on the infusion pipeline, and the infusion pump is used to cause the liquid in the liquid storage tank to flow to the second chamber; A suction assembly, the suction assembly includes a suction pipeline, a resin storage bin and a suction pump, one end of the suction pipeline is connected to the first chamber, the other end of the suction pipeline is connected to the resin storage bin, the suction pump is arranged on the suction pipeline, and the suction pump is used to cause the resin in the first chamber to flow to the resin storage bin.

2. The ion exchanger unloading system according to claim 1, characterized in that: The suction pipeline comprises a straight pipe section and a bent pipe section connected to each other. The bent pipe section is provided with a suction port, and the opening of the suction port is arranged toward the filter screen.

3. The ion exchanger unloading system according to claim 2, characterized in that: The bent pipe section is located in the first chamber, the suction port is located on the central axis of the first chamber, and the distance between the suction port and the filter screen is set to 3 mm to 10 mm.

4. The ion exchanger unloading system according to claim 1, characterized in that: The resin storage bin is provided with an overflow port, and a liquid return pipeline is provided between the overflow port and the liquid storage bin.

5. The ion exchanger unloading system according to claim 4, characterized in that: The overflow port is arranged at the middle and upper part of the resin storage bin, and a screen is arranged at the overflow port.

6. The ion exchanger unloading system according to claim 1, characterized in that: The infusion assembly further includes a first switch valve, which is disposed on the infusion pipeline and is located between the infusion pump and the second chamber; the suction assembly further includes a second switch valve, which is disposed on the suction pipeline and is located between the first chamber and the suction pump; And / or, the suction pump is configured as a diaphragm pump.

7. The ion exchanger unloading system according to claim 1, characterized in that: The first chamber is located above the second chamber in the height direction of the ion exchanger, the resin storage bin is arranged above the ion exchanger, and a resin delivery pipeline is arranged between the resin storage bin and the first chamber of the ion exchanger.

8. The ion exchanger unloading system according to claim 7, characterized in that: A third switch valve is provided on the resin conveying pipeline, and a level meter is provided on the ion exchanger. The level meter is used to monitor the height change of the resin material in the reaction chamber, and the third switch valve is used to control the on-off of the resin conveying pipeline according to the height change of the resin material collected by the level meter.

9. An ion exchange system, characterized in that: An ion exchanger unloading system comprising a feed storage bin, a feed pipeline, a discharge storage bin, a discharge pipeline and any one of claims 1 to 8, wherein the two ends of the feed pipeline are correspondingly connected to the feed storage bin and the first chamber, and the two ends of the discharge pipeline are correspondingly connected to the second chamber and the discharge storage bin.

10. The ion exchange system according to claim 9, characterized in that A feed pump is provided on the feed pipeline, a fourth switch valve is provided on the feed pipeline, a discharge pump is provided on the discharge pipeline, and a fifth switch valve is provided on the discharge pipeline.