Ion exchange system and ion exchange column thereof

Abstract

The utility model relates to the technical field of ion exchange, and discloses a continuous ion exchange system and an ion exchange column thereof. The valve body comprises a shell, a rotating body and a transmission shaft, the rotating body is arranged on the transmission shaft in a sleeving mode and fixedly connected with the transmission shaft, the shell is arranged on the rotating body in a sleeving mode and rotatably connected with the rotating body, a plurality of connectors are arranged on the shell, a hollow part is arranged on the rotating body and extends to the circumferential face of the rotating body, and the rotating body is provided with an end face. The axial direction of the transmission shaft is perpendicular to the plane where the end face is located, and a communicating opening communicating with the hollowed-out part is formed in the end face and communicates with the hollowed-out part and the column body. The driving device is connected with the transmission shaft and drives the transmission shaft to rotate. The valve body can change an external pipeline communicated with the valve body in a mode of switching the connectors, the operation fault risk of the valve is reduced, the ion exchange column does not need to be rotated, and therefore the risk of surface collapse is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ion exchange, in particular to a continuous ion exchange system and an ion exchange column thereof. Background Art

[0002] Ion exchange technology refers to a purification and impurity removal technology in which when a material passes through an adsorbent, specific ions or groups in the material are exchanged with the functional groups of the adsorbent.

[0003] There are mainly two types of existing industrial ion exchange systems. One is the valve array type, and the other is the rotary type. The valve array type ion exchange system requires hundreds of valves to be set, and the risk of failure during operation is relatively high. While the rotary type ion exchange equipment needs to rotate the ion exchange column, and the single column weight of the ion exchange column is about 20 tons. Rotating the ion exchange column will bring huge pressure to the relatively fragile ground surface, and long-term operation will cause the ground surface to collapse.

[0004] Therefore, the existing technology urgently needs to be improved. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a continuous ion exchange system and an ion exchange column thereof, which can reduce the risk of operation failure of valves and also reduce the risk of ground surface collapse.

[0006] In order to achieve the above purpose, the utility model provides an ion exchange column, comprising:

[0007] A column body, the column body has an inner cavity, and the inner cavity is filled with an adsorbent for ion exchange reaction;

[0008] A valve body, including a housing, a rotating body and a transmission shaft. The rotating body is sleeved on the transmission shaft and fixedly connected thereto. The housing is sleeved on the rotating body and rotatably connected thereto. A plurality of interfaces are arranged on the housing. A hollowed-out portion is arranged on the rotating body, and the hollowed-out portion extends to the circumferential surface of the rotating body. The rotating body has an end face, the axial direction of the transmission shaft is perpendicular to the plane where the end face is located, and a communication port communicating with the hollowed-out portion is arranged on the end face. The communication port communicates the hollowed-out portion with the inner cavity. When the rotating body rotates relative to the housing, the hollowed-out portion can respectively form a channel with any one of the interfaces, so that any one of the interfaces can communicate with the communication port through the hollowed-out portion;

[0009] A driving device, connected to the transmission shaft, and the driving device drives the transmission shaft to rotate, so that the rotating body can rotate to a position where the hollowed-out portion communicates with any one of the interfaces.

[0010] In some embodiments of the present application:

[0011] One pair of the valve bodies is correspondingly arranged for each of the cylinders, and each pair of the valve bodies is respectively arranged at the top and the bottom of the cylinder.

[0012] In some embodiments of the present application:

[0013] The interfaces are uniformly arranged on the surface of the housing.

[0014] In some embodiments of the present application:

[0015] Six interfaces are arranged on each of the valve bodies.

[0016] In some embodiments of the present application:

[0017] The hollowed-out part is in a groove shape arranged on the outer surface of the rotating body, and the opening of the hollowed-out part on the end face is the communication port.

[0018] In some embodiments of the present application:

[0019] The communication port is in a fan-shaped ring shape.

[0020] The present utility model further provides a continuous ion exchange system, including:

[0021] The ion exchange columns as described above, and a plurality of the ion exchange columns are provided;

[0022] Series pipelines, which are provided in multiple numbers and are used for connecting to one interface on each of the valve bodies of two adjacent ion exchange columns respectively, so that at least a part of the ion exchange columns are connected and communicated through the series pipelines;

[0023] Main pipelines, which are provided in multiple numbers, and each of the main pipelines is connected and communicated with one interface of the valve body of at least one ion exchange column.

[0024] In some embodiments of the present application, the continuous ion exchange system further includes: one pair of the valve bodies is correspondingly arranged for each of the cylinders, and each pair of the valve bodies is respectively arranged at the top and the bottom of the cylinder;

[0025] One interface of the valve body at the top of each cylinder is communicated with one interface of the valve body at the bottom of another cylinder on the left through one series pipeline, and one interface of the valve body at the top of each cylinder is communicated with one interface of the valve body at the bottom of another cylinder on the right through one series pipeline.

[0026] In some embodiments of the present application, the number of the main pipelines is 7, three interfaces of the valve body at the top of each cylinder are respectively connected to three main pipelines, and four interfaces of the valve body at the bottom of each cylinder are respectively connected to another four main pipelines;

[0027] The three mother pipes connected to the valve body at the top of the column are respectively: the brine mother pipe, the pure water mother pipe, and the pure water recovery pipeline; the four mother pipes connected to the valve body at the bottom of the column are respectively: the first tail liquid mother pipe, the brine recovery mother pipe, the qualified liquid product mother pipe, and the tail liquid utilization pipeline.

[0028] In some embodiments of the present application, the number of the mother pipes is 8. Four interfaces of the valve body at the top of each column are respectively connected to 4 mother pipes, and four interfaces of the valve body at the bottom of each column are respectively connected to the other 4 mother pipes;

[0029] The four mother pipes connected to the valve body at the top of the column are respectively: the material mother pipe, the acid mother pipe, the alkali mother pipe, and the industrial water mother pipe; the four mother pipes connected to the valve body at the bottom of the column are respectively: the second tail liquid mother pipe, the sewage discharge mother pipe, the material recovery mother pipe, and the water recovery mother pipe.

[0030] The utility model provides a continuous ion exchange system and its ion exchange column. Compared with the prior art, its beneficial effects are as follows:

[0031] The ion exchange column of the utility model includes a column body, a valve body, and a driving device. The valve body includes a housing, a rotating body, and a transmission shaft. A plurality of interfaces are arranged on the housing, and a hollow part and a communication port are arranged on the rotating body. The driving device drives the transmission shaft to rotate, driving the rotating body to rotate. Although the communication port will be driven to rotate by the rotating body, it can still keep the hollow part communicating with the column body through the communication port. The rotation of the rotating body will also drive the hollow part to rotate, changing the position of the hollow part, and the interfaces corresponding to the communication of the hollow part also change. Thus, the valve body can change the external pipelines connected to it by switching the interfaces, so that there is no need to set a separate valve for each external pipeline, reducing the risk of operation failures of the valves. Moreover, by changing the external pipelines connected to it through the valve body, it is not necessary to rotate the ion exchange column as in the prior art turntable structure, thus reducing the risk of surface subsidence.

[0032] The continuous ion exchange system of the utility model includes the above-mentioned ion exchange column, enabling the valve body to change the external pipelines connected to it by switching the interfaces, reducing the risk of operation failures of the valves. Moreover, by changing the external pipelines connected to it through the valve body, it is not necessary to rotate the ion exchange column, thus reducing the risk of surface subsidence. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic diagram of the ion exchange column of the embodiment of the utility model.

[0034] Figure 2 is a schematic diagram of the valve body of the embodiment of the utility model.

[0035] Figure 3 It is a schematic diagram of the rotating body of an embodiment of the present utility model.

[0036] Figure 4 It is a schematic diagram of the continuous ion exchange system of an embodiment of the present utility model.

[0037] Figure 5 It is a schematic diagram of the application of lithium extraction from salt lakes of an embodiment of the present utility model.

[0038] Figure 6 It is a schematic diagram of the application of removing resin boron of an embodiment of the present utility model.

[0039] Figure 7 It is a cross-sectional view of the valve body of an embodiment of the present utility model.

[0040] Figure 8 It is a schematic diagram of the outer shell of an embodiment of the present utility model.

[0041] Figure 9 It is a schematic diagram of the rotating body of an embodiment of the present utility model.

[0042] In the figure, 1 is the column body; 2 is the valve body;

[0043] 21 is the outer shell; 22 is the rotating body; 23 is the transmission shaft; 24 is the interface; 25 is the hollowed-out part; 26 is the communication port;

[0044] 100 is the ion exchange column; 200 is the series pipeline; 300 is the main pipe.

[0045] 311 is the brine main pipe; 312 is the first tail liquid main pipe; 313 is the pure water main pipe; 314 is the brine recovery main pipe; 315 is the qualified liquid product main pipe; 316 is the pure water recovery pipeline; 317 is the tail liquid utilization pipeline; 318 is the brine tank; 319 is the pure water tank; 320 is the tail liquid tank; 321 is the product tank;

[0046] 351 is the material main pipe; 352 is the acid main pipe; 353 is the alkali main pipe; 354 is the industrial water main pipe; 355 is the second tail liquid main pipe; 356 is the sewage main pipe; 357 is the material recovery main pipe; 358 is the water recovery main pipe; 359 is the raw material tank; 360 is the acid storage tank; 361 is the alkali storage tank; 362 is the water storage tank; 363 is the tail liquid storage tank; 364 is the sewage pool. Specific Embodiments

[0047] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0048] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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 to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0049] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0050] In addition, in the description of the present utility model, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0051] For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0052] Please refer to Figures 1-3 , an ion exchange column 100 of a preferred embodiment of the embodiment of the present utility model includes: a column body 1, a valve body 2, and a driving device.

[0053] The column body 1 has an inner cavity, and the inner cavity is filled with an adsorbent for ion exchange reaction.

[0054] Please refer to Figure 2 , Figure 3 and Figures 7-9, the valve body 2 includes a housing 21, a rotating body 22 and a transmission shaft 23. The rotating body 22 is sleeved on the transmission shaft 23 and the two are fixedly connected. The housing 21 is sleeved on the rotating body 22 and the two are rotatably connected. A plurality of interfaces 24 are provided on the housing 21. A hollowed-out portion 25 is provided on the rotating body 22. The hollowed-out portion 25 extends to the circumferential surface of the rotating body 22. The rotating body 22 has an end face. The axial direction of the transmission shaft 23 is perpendicular to the plane where the end face is located. A communication port 26 communicating with the hollowed-out portion 25 is provided on the end face. The communication port 26 communicates the hollowed-out portion 25 with the inner cavity of the cylinder 1. When the rotating body 22 rotates relative to the housing 21, the hollowed-out portion 25 can form a channel with any one of the interfaces 24 respectively, so that any one of the interfaces 24 can communicate with the communication port 26 through the hollowed-out portion 25.

[0055] The hollowed-out portion 25 can form a channel with any one of the interfaces 24, and the hollowed-out portion 25 can only form a channel with one interface 24 at one position. In other words, the hollowed-out portion 25 can only communicate with one interface 24 and cannot communicate with multiple interfaces 24 at the same time.

[0056] The interface 24 is used to connect to an external pipeline, and different interfaces 24 are connected to different external pipelines.

[0057] A driving device, connected to the transmission shaft 23, the driving device drives the transmission shaft 23 to rotate, so that the rotating body 22 can rotate to a position where the hollowed-out portion 25 communicates with any one of the interfaces 24.

[0058] The driving device drives the transmission shaft 23 to rotate, driving the rotating body 22 to rotate, but the housing 21 will not rotate with the rotating body 22, so that a relative rotation is formed between the housing 21 and the rotating body 22. For the cylinder 1, the interface 24 on the housing does not rotate. Although the communication port 26 will be driven to rotate by the rotating body 22, the connection between the hollowed-out portion 25 and the cylinder 1 through the communication port 26 can still be maintained. The rotation of the rotating body 22 will also drive the hollowed-out portion 25 to rotate, thus changing the position of the hollowed-out portion 25, and the interface 24 corresponding to the hollowed-out portion 25 also changes. The driving device can control the position of the hollowed-out portion 25 by driving the rotation angle of the rotating body 22, so as to control which interface 24 the hollowed-out portion 25 communicates with.

[0059] Through such a mechanism, the valve body 2 can change the external pipeline connected to the valve body 2 by switching the interface 24, so that there is no need to set a separate valve for each external pipeline, reducing the risk of operation failure of the valve. Moreover, by changing the external pipeline connected to the valve body 2, there is no need to change the position of the cylinder 1, thus reducing the risk of surface subsidence.

[0060] In some embodiments, a pair of valve bodies 2 is correspondingly provided for each column 1, and each pair of valve bodies 2 is respectively arranged at the top and bottom of the column 1. Valve bodies 2 are arranged at both the top and bottom of the ion exchange column 100, and both can play the role of changing the connected external pipelines by switching the interface 24.

[0061] In some embodiments, the interfaces 24 are uniformly arranged on the surface of the housing 21.

[0062] The interfaces 24 are uniformly arranged, and the driving device rotates by the same angle when switching adjacent interfaces 24, which is more convenient for the staff to set the valve to switch different interfaces 24.

[0063] In this embodiment, 6 interfaces 24 are provided on each valve body 2. In other embodiments, more interfaces 24 can also be provided, and the specific number and position of the interfaces 24 can be set as required.

[0064] In some embodiments, the hollowed-out part 25 is in a groove shape arranged on the outer surface of the rotating body 22, and the opening of the hollowed-out part 25 on the end face is the communication port 26.

[0065] The hollowed-out part 25 only needs to satisfy the connection between the interface 24 and the communication port 26, and the shape can be set as required. Since the valve bodies 2 are arranged in two and are respectively arranged at the top and bottom of the column 1, the two valve bodies 2 are symmetrically arranged up and down. To ensure the connection between the hollowed-out part 25 and the interface 24, for the valve body 2 located at the bottom of the column 1, the height of the bottom of the groove of the hollowed-out part 25 is lower than the height of the interface 24. The liquid entering from the interface 24 can all enter the hollowed-out part 25. Moreover, the hollowed-out part 25 cannot extend to the other end face opposite to the communication port 26, otherwise such a penetrating structure will cause material leakage. For the valve body 2 located at the top of the column 1, the height of the bottom of the groove of the hollowed-out part 25 is higher than the height of the interface 24. Specifically, the communication port 26 is in a fan-shaped ring shape. In this embodiment, the rotating body 22 is in a ring shape, and such a setting of the communication port 26 is convenient for implementation.

[0066] In some embodiments, the driving device is a motor. The motor is connected to the transmission shaft 23 and can drive the transmission shaft 23 to rotate. In other embodiments, other forms of driving devices can also be selected.

[0067] Please refer to Figure 4 , this embodiment also provides a continuous ion exchange system, including: the above-mentioned ion exchange column 100, a series pipeline 200, and a main pipe 300.

[0068] A plurality of ion exchange columns 100 are provided.

[0069] A series of pipelines 200, which are provided in multiple numbers, are used to connect to one interface 24 on each of the valve bodies 2 of two adjacent ion exchange columns 100 respectively, so that at least a part of the ion exchange columns 100 are connected and communicated through the series of pipelines 200.

[0070] Main pipelines 300, which are provided in multiple numbers, and each main pipeline 300 is connected and communicated with one interface 24 of the valve body 2 of at least one ion exchange column 100.

[0071] The series of pipelines 200 are used to connect the ion exchange columns 100 in series, and the main pipelines 300 are used for the flow of materials and products.

[0072] One pair of valve bodies 2 is correspondingly provided for each column body 1, and each pair of valve bodies 2 is respectively arranged at the top and bottom of the column body 1.

[0073] One interface 24 of the valve body 2 at the top of each column body 1 is communicated with one interface 24 of the valve body 2 at the bottom of another column body 1 on the left through a series of pipelines 200, and one interface 24 of the valve body 2 at the top of each column body 1 is communicated with one interface 24 of the valve body 2 at the bottom of another column body 1 on the right through a series of pipelines 200.

[0074] With such a structure, each ion exchange column 100 can be connected in series with each other, and series connection in two directions can be achieved.

[0075] Please refer to Figure 4 , in this embodiment, there are six interfaces 24 on the valve body 2.

[0076] For the valve body 2 located at the top of the column body 1, four interfaces 24 are respectively connected and communicated with four nearby main pipelines 300, and the other two interfaces 24 are respectively communicated with two series of pipelines 300. Taking the view direction in Figure 4 as an example, one series of pipelines 200 is communicated with the valve body 2 at the bottom of the column body 1 on the left, and the other series of pipelines 200 is communicated with the valve body 2 at the bottom of the column body 1 on the right.

[0077] For the valve body 2 located at the bottom of the column body 1, four interfaces are respectively connected and communicated with four nearby main pipelines 300, and the other two interfaces 24 are respectively communicated with two series of pipelines 300. One series of pipelines 200 is communicated with the valve body 2 at the top of the column body 1 on the left, and the other series of pipelines 200 is communicated with the valve body 2 at the top of the column body 1 on the right.

[0078] Each ion exchange column 100 is connected in series from left to right. That is, the liquid in the left column body 1 can enter the valve body 2 at the top of the middle column body 1 through the series of pipelines 200 from the valve body 2 at the bottom, and then enter the valve body 2 at the top of the right column body 1 through the series channel 200 from the valve body 2 at the bottom of the middle column body 1. The liquid flow direction passes through each ion exchange column 100 from left to right in sequence.

[0079] The ion exchange columns 100 can also be connected in series from right to left. That is, the liquid in the right column 1 can enter the top valve body 2 of the middle column 1 from the bottom valve body 2 through the series pipeline 200, and then enter the top valve body 2 of the left column 1 from the bottom valve body 2 of the middle column 1 through the series channel 200. The liquid flow direction passes through each ion exchange column 100 from right to left in turn.

[0080] Thus, each ion exchange column 100 realizes series connection in two directions.

[0081] Taking lithium extraction from salt lakes as an example, please refer to Figure 5 , and set the number of main pipes 300 to 7, namely the brine main pipe 311, the first tail liquid main pipe 312, the pure water main pipe 313, the brine recovery main pipe 314, the qualified liquid product main pipe 315, the pure water recovery pipeline 316, and the tail liquid utilization pipeline 317.

[0082] Lithium extraction from salt lakes mainly includes four steps respectively implemented in the first adsorption section, the tail liquid water topping section, the desorption section, and the water topping material section, with a total of 30 columns of process.

[0083] The first adsorption section includes 16 ion exchange columns 100. Each ion exchange column 100 is connected through the series pipeline 200. The ion exchange column 100 at the head of the first adsorption section is also connected to the brine main pipe 311 through the valve body 2, and the ion exchange column 100 at the tail of the first adsorption section is also connected to the first tail liquid main pipe 312 through the valve body 2. Since in this embodiment, valve bodies 2 are provided at both the top and bottom of each ion exchange column 100. The ion exchange column 100 at the head of the first adsorption section is Figure 5 the first ion exchange column 100 counted from the left in the middle. The top valve body 2 is connected to the brine main pipe 311, and the bottom valve body 2 is connected to the top valve body 2 of the adjacent ion exchange column 100 through the series pipeline 200. The adjacent ion exchange column 100 is Figure 5 the second ion exchange column 100 counted from the left in the middle, realizing the series connection of the ion exchange columns 100. The ion exchange column 100 at the tail of the first adsorption section is Figure 5 the sixteenth ion exchange column 100 counted from the left in the middle. And the sixteen ion exchange columns 100 in the first adsorption section are all connected in series in turn through the series pipeline 200. The bottom valve body 2 of the sixteenth ion exchange column 100 is connected to the first tail liquid main pipe 312. During operation, the brine in the brine main pipe 311 enters the ion exchange column 100 at the head, then flows through each ion exchange column 100 in turn into the ion exchange column 100 at the tail, and then flows into the first tail liquid main pipe 312.

[0084] The tail liquid water flushing section includes one ion exchange column 100. The ion exchange column 100 is connected to the pure water recovery pipeline 316 through the valve body 2, and the ion exchange column 100 is also connected to the tail liquid utilization pipeline 317 through the valve body 2. In this embodiment, the ion exchange column 100 is Figure 5 the seventeenth ion exchange column 100 from the left in the middle. The valve body 2 at the top is connected to the pure water recovery main pipe 300, and the valve body 2 at the bottom is connected to the tail liquid utilization pipeline 317. During operation, the tail liquid in the tail liquid utilization pipeline 317 enters the ion exchange column 100 and then flows from the ion exchange column 100 into the pure water recovery pipeline 316.

[0085] The desorption section includes nine ion exchange columns 100. Each ion exchange column 100 is connected through a series pipeline 200. The ion exchange column 100 at the head of the desorption section is also connected to the qualified liquid product main pipe 315 through the valve body 2, and the ion exchange column 100 at the tail of the desorption section is also connected to the pure water main pipe 313 through the valve body 2. In this embodiment, the ion exchange column 100 at the head of the desorption section is Figure 5 the eighteenth ion exchange column 100 from the left in the middle. The valve body 2 at the top of the eighteenth ion exchange column 100 is connected to the valve body 2 at the top of the adjacent ion exchange column 100 through the series pipeline 200, and the adjacent ion exchange column 100 is Figure 5 the nineteenth ion exchange column 100 from the left in the middle. The valve body 2 at the bottom of the eighteenth ion exchange column 100 is connected to the qualified liquid product main pipe 315. The nine ion exchange columns 100 in the desorption section are all connected in series in sequence through the series pipeline 200. The ion exchange column 100 at the tail of the desorption section is Figure 5 the twenty-sixth ion exchange column 100 from the left in the middle. The valve body 2 at the top is connected to the pure water main pipe 313, and the valve body 2 at the bottom is connected to the series pipeline 200. During operation, the pure water in the pure water main pipe 313 enters the ion exchange column 100 at the tail, then flows through each ion exchange column 100 in sequence into the ion exchange column 100 at the head, and then flows into the qualified liquid product main pipe 315.

[0086] The water flushing and feeding section includes four ion exchange columns 100. Each ion exchange column 100 is connected through a series pipeline 200. The ion exchange column 100 at the head of the water flushing and feeding section is also connected to the pure water main pipe 313 through the valve body 2, and the ion exchange column 100 at the tail of the water flushing and feeding section is also connected to the brine recovery main pipe 314 through the valve body 2. The ion exchange column 100 at the head of the water flushing and feeding section is Figure 5 the twenty-seventh ion exchange column 100 from the left in the middle. The valve body 2 at the top is connected to the pure water main pipe 313, and the valve body 2 at the bottom is connected to the valve body 2 at the top of the adjacent ion exchange column 100 through the series pipeline 200. The adjacent ion exchange column 100 is Figure 5 the twenty-eighth ion exchange column 100 from the left in the middle. The four ion exchange columns in the water flushing and feeding section are connected in series in sequence through the series pipeline 200. The ion exchange column 100 at the tail of the water flushing and feeding section isFigure 5 The 30th ion exchange column 100 from the left in the middle, and the bottom valve body 2 is connected to the brine recovery main pipe 314. During operation, the pure water in the pure water main pipe 313 enters the ion exchange column 100 at the head, then flows through each ion exchange column 100 in sequence into the ion exchange column 100 at the tail, and then flows into the brine recovery main pipe 314.

[0087] It should be noted here that please refer to Figure 5 , and it should be explained here that the first ion exchange column 100 from the left and the first ion exchange column 100 from the right can be directly connected through the series pipeline 200. In other words, Figure 5 Only the connection relationship of each ion exchange column 100 under the current working condition is expressed, not the actual position relationship. And the so-called adjacent ion exchange columns 100 in the above process steps are the adjacent ion exchange columns 100 in the connection relationship. For example, in implementation, the actual installation positions of each ion exchange column 100 can be arranged in a ring. With this setting, Figure 5 in this case, the first ion exchange column 100 from the left and the first ion exchange column 100 from the right can also be considered adjacent if they are in the same process step.

[0088] In addition, the series pipelines 200 between each ion exchange column 100 can achieve series connection in different directions, and the connection mode of the series channel 200 is as Figure 4 shown and the above description about series connection in different directions.

[0089] Among them, the brine main pipe 311 and the brine recovery main pipe 314 are also connected to the brine tank 318, the pure water main pipe 313 and the pure water recovery pipeline 316 are also connected to the pure water tank 319, the tail liquid utilization pipeline 317 and the first tail liquid main pipe 312 are also connected to the tail liquid tank 320, and the qualified liquid product main pipe 315 is also connected to the product tank 321.

[0090] For the two valve bodies 2 of all the above ion exchange columns 100, the 3 interfaces 24 of the valve body 2 at the top of each column body 1 are respectively connected to 3 main pipes 300, and the 4 interfaces 24 of the valve body 2 at the bottom of each column body 1 are respectively connected to another 4 main pipes 300.

[0091] The 3 main pipes 300 connected to the valve body 2 at the top of the column body 1 are respectively: the brine main pipe 311, the pure water main pipe 313 and the pure water recovery pipeline 316; the 4 main pipes 300 connected to the valve body 2 at the bottom of the column body 1 are respectively: the first tail liquid main pipe 312, the brine recovery main pipe 314, the qualified liquid product main pipe 315 and the tail liquid utilization pipeline 317.

[0092] Both the top valve body 2 and the bottom valve body 2 of each column body 1 have two interfaces 24 respectively connected to the series pipeline 200, and the two series pipelines 200 can achieve series connection of each ion exchange column 100 in different directions.

[0093] It is only necessary to rotate the position of the valve body 2 to connect the corresponding interface 24 according to the different positions of each ion exchange column 100 in each process section. For example, for the top valve body 2 of the ion exchange column 100 at the head of the first adsorption section, rotate it to connect the interface 24 corresponding to the brine main pipe 311 to achieve the connection of the brine main pipe 311; another example is the top valve body 2 of the ion exchange column 100 in the tail liquid water flushing section, rotate it to connect the interface 24 of the pure water recovery pipeline 316 to achieve the connection of the pure water recovery pipeline 316.

[0094] Due to the above-mentioned valve body 2 being provided on the column body 1, after Figure 5 the leftmost first ion exchange column 100 in becomes adsorption saturated, this ion exchange column 100 enters the water displacement section. It is only necessary to rotate the valve body 2 to change the corresponding connected interface 24, and the subsequent ion exchange columns 100 will fill the vacancies in turn. Specifically, Figure 5 the leftmost first ion exchange column 100 in becomes the ion exchange column 100 at the tail of the water displacement section, the leftmost second ion exchange column 100 becomes the head ion exchange column 100 of the first adsorption section, the leftmost seventeenth ion exchange column 100 becomes the tail ion exchange column 100 of the first adsorption section, the leftmost eighteenth ion exchange column 100 becomes the ion exchange column 100 in the tail liquid water flushing section, the leftmost nineteenth ion exchange column 100 becomes the head ion exchange column 100 of the desorption section, the leftmost twenty-seventh ion exchange column 100 becomes the tail ion exchange column 100 of the desorption section, and the leftmost twenty-eighth ion exchange column 100 becomes the head ion exchange column 100 of the water displacement section.

[0095] Please refer to Figure 6 , taking boron removal from resin as an example. Generally, boron removal from resin is six steps, which are respectively executed by the second adsorption section, the first water washing section, the acid desorption section, the second water washing section, the alkali transformation section, and the third water washing section, with a total of ten-column process.

[0096] The main pipe 300 is set to 8, which are respectively the material main pipe 351, the acid main pipe 352, the alkali main pipe 353, the industrial water main pipe 354, the second tail liquid main pipe 355, the sewage discharge main pipe 356, the material recovery main pipe 357, and the water recovery main pipe 358.

[0097] The second adsorption section includes 3 ion exchange columns 100. Each ion exchange column 100 is connected through a series pipeline 200. The ion exchange column 100 at the head of the second adsorption section is also connected to the material main pipe 351 through the valve body 2, and the ion exchange column 100 at the tail of the second adsorption section is also connected to the second tail liquid main pipe 355 through the valve body 2. Since in this embodiment, valve bodies 2 are provided at both the top and bottom of each ion exchange column 100. The ion exchange column 100 at the head of the first adsorption section is also Figure 6The first ion exchange column 100 from the left in the middle, the top valve body 2 is connected to the material main pipe 351, and the bottom valve body 2 is connected to the top valve body 2 of the adjacent ion exchange column 100 through the series pipeline 200. The adjacent ion exchange column 100 is Figure 6 The second ion exchange column 100 from the left, realizing the series connection of the ion exchange columns 100. The ion exchange column 100 at the tail of the second adsorption section is Figure 6 The third ion exchange column 100 from the left in the middle, and the three ion exchange columns 100 in the first adsorption section are all connected in series through the series pipeline 200 in sequence. The bottom valve body 2 of the third ion exchange column 100 is connected to the second tail liquid main pipe 355. During operation, the material in the material main pipe 351 enters the first ion exchange column 100, then flows through each ion exchange column 100 in sequence into the ion exchange column 100 at the tail, and then flows into the second tail liquid main pipe 355.

[0098] The first water washing section includes 1 ion exchange column 100. This ion exchange column 100 is connected to the industrial water main pipe 354 through the valve body 2, and this ion exchange column 100 is also connected to the sewage main pipe 356 through the valve body 2. In this embodiment, this ion exchange column 100 is Figure 6 The fourth ion exchange column 100 from the left in the middle, the top valve body 2 is connected to the industrial water main pipe 354, and the bottom valve body 2 is connected to the sewage main pipe 356. During operation, the industrial water in the industrial water main pipe 354 enters the ion exchange column 100, and then flows from the ion exchange column 100 into the sewage main pipe 356.

[0099] The acid desorption section includes 2 ion exchange columns 100. The two ion exchange columns 100 are connected through the series pipeline 200. The ion exchange column 100 at the head of the acid desorption section is also connected to the acid main pipe 352 through the valve body 2, and the ion exchange column 100 at the tail of the acid desorption section is also connected to the sewage main pipe 356 through the valve body 2. The ion exchange column 100 at the head of the acid desorption section is Figure 6 The fifth ion exchange column 100 in the middle, the top valve body 2 is connected to the acid main pipe 352, and the bottom valve body 2 is connected to the top valve body 2 of the adjacent ion exchange column 100 through the series pipeline 200. The adjacent ion exchange column 100 is Figure 6 The sixth ion exchange column 100 from the left in the middle, which is also the ion exchange column 100 at the tail of the acid desorption section. The bottom valve body 2 of the sixth ion exchange column 100 is connected to the sewage main pipe 356. During operation, the liquid in the acid main pipe 352 enters the ion exchange column 100 at the head, then enters the ion exchange column 100 at the tail through the series pipeline 200, and then flows into the sewage main pipe 356.

[0100] The second water washing section includes one ion exchange column 100. The ion exchange column 100 is connected to the industrial water main pipe 354 through the valve body 2, and the ion exchange column 100 is also connected to the water recovery main pipe 358 or the sewage discharge main pipe 356 through the valve body 2. The ion exchange column 100 is Figure 6 the seventh ion exchange column 100 from the left in the middle. The valve body 2 at the top is connected to the industrial water main pipe 354, and the valve body 2 at the bottom is connected to the recovery main pipe 358 or the sewage discharge main pipe 356. During operation, the industrial water in the industrial water main pipe 354 enters the ion exchange column 100 and then flows from the ion exchange column 100 into the sewage discharge main pipe 356 or the water recovery main pipe 358.

[0101] The alkali transformation section includes two ion exchange columns 100. The two ion exchange columns 100 are connected through a series pipeline 200. The ion exchange column 100 at the head of the alkali transformation section is also connected to the alkali main pipe 353 through the valve body 2, and the ion exchange column 100 at the tail of the alkali transformation section is also connected to the sewage discharge main pipe 356 or the water recovery main pipe 358 through the valve body 2. The ion exchange column 100 at the head of the alkali transformation section is Figure 6 the eighth ion exchange column 100 in the middle. The valve body 2 at the top is connected to the alkali main pipe 353, and the valve body 2 at the bottom is connected to the valve body 2 at the top of the adjacent ion exchange column 100 through the series pipeline 200. The adjacent ion exchange column 100 is Figure 6 the ninth ion exchange column 100 from the left in the middle, and it is also the ion exchange column 100 at the tail of the alkali transformation section. The valve body 2 at the bottom of the ninth ion exchange column 1000 is connected to the sewage discharge main pipe 356 or the water recovery main pipe 358. During operation, the liquid in the alkali main pipe 353 enters the ion exchange column 100 at the head, then enters the ion exchange column 100 at the tail through the series pipeline 200, and then flows into the sewage main pipe 356 or the water recovery main pipe 358.

[0102] The third water washing section includes one ion exchange column 100. The ion exchange column 100 is connected to the industrial water main pipe 354 through the valve body 2, and the ion exchange column 100 is also connected to the material recovery main pipe 357 through the valve body 2. The ion exchange column 100 is Figure 6 the tenth ion exchange column 100 from the left in the middle. The valve body 2 at the top is connected to the industrial water main pipe 354, and the valve body 2 at the bottom is connected to the material recovery main pipe 357. During operation, the industrial water in the industrial water main pipe 354 enters the ion exchange column 100 and then flows from the ion exchange column 100 into the material recovery main pipe 357.

[0103] The material main pipe 351 is also connected to the raw material tank 359, the acid main pipe 352 is also connected to the acid storage tank 360, the alkali main pipe 353 is also connected to the alkali storage tank 361, the industrial water main pipe 354 is also connected to the water storage tank 362, the second tail liquid main pipe 355 is also connected to the tail liquid storage tank 363, the sewage main pipe 356 is also connected to the sewage pool 364, the material recovery main pipe 357 is also connected to the raw material tank 359, and the water recovery main pipe 358 is also connected to the water storage tank 362.

[0104] It should be noted here that please refer to Figure 6 , and it should be noted here that the leftmost first ion exchange column 100 and the rightmost first ion exchange column 100 can be directly connected through the series pipeline 200. In other words, Figure 6 only expresses the connection relationship of each ion exchange column 100 under the current working condition, rather than the actual position relationship. The so-called adjacent ion exchange columns 100 in the above process steps are the adjacent ion exchange columns 100 in the connection relationship. For example, in implementation, the actual installation positions of each ion exchange column 100 can be arranged in a ring. With such an arrangement, Figure 6 in, the leftmost first ion exchange column 100 and the rightmost first ion exchange column 100 can also be considered adjacent if they are in the same process step.

[0105] In addition, the series pipelines 200 between each ion exchange column 100 can achieve series connection in different directions. The connection mode of the series channel 200 is as Figure 4 shown and the above description about series connection in different directions.

[0106] For the two valve bodies 2 of all the above ion exchange columns 100, the 4 interfaces 24 of the valve body 2 at the top of each column body 1 are respectively connected to 4 main pipes 300, and the 4 interfaces 24 of the valve body 2 at the bottom of each column body 1 are respectively connected to another 4 main pipes 300.

[0107] The 4 main pipes 300 connected to the valve body 2 at the top of the column body 1 are respectively: the material main pipe 351, the acid main pipe 352, the alkali main pipe 353, and the industrial water main pipe 354; the 4 main pipes 300 connected to the valve body 2 at the bottom of the column body 1 are respectively: the second tail liquid main pipe 355, the sewage main pipe 356, the material recovery main pipe 357, and the water recovery main pipe 358.

[0108] Both the top valve body 2 and the bottom valve body 2 of each column body 1 have two interfaces 24 respectively connected to the series pipeline 200, and the two series pipelines 200 can achieve series connection of each ion exchange column 100 in different directions.

[0109] It is only necessary to rotate the position of the valve body 2 to connect the corresponding interface 24 according to the different positions of each ion exchange column 100 in each process section. For example, for the top valve body 2 of the ion exchange column 100 at the head of the second adsorption section, rotate it to connect the interface 24 corresponding to the material main pipe 351 to achieve the connection of the material main pipe 351. Another example is the top valve body 2 of the ion exchange column 100 in the acid desorption section, rotate it to connect the interface 24 of the acid main pipe 352 to achieve the connection of the acid main pipe 352.

[0110] Due to the above-mentioned valve body 2 being provided on the column body 1, after Figure 6 the first ion exchange column 100 from the left in [[]] is saturated in adsorption, this ion exchange column 100 enters the third water washing section. It is only necessary to rotate the valve body 2 to change the corresponding connected interface 24, and the subsequent ion exchange columns 100 will fill the vacancies in turn. Specifically, Figure 6 the first ion exchange column 100 from the left in [[]] becomes the ion exchange column 100 in the third water washing section, the second ion exchange column 100 from the left becomes the head ion exchange column 100 in the second adsorption section, the fourth ion exchange column 100 from the left becomes the tail ion exchange column 100 in the second adsorption section, the fifth ion exchange column 100 from the left becomes the ion exchange column 100 in the first water washing section, the sixth ion exchange column 100 from the left becomes the head ion exchange column 100 in the acid desorption section, the seventh ion exchange column 100 from the left becomes the tail ion exchange column 100 in the acid desorption section, the eighth ion exchange column 100 from the left becomes the ion exchange column 100 in the second water washing section, the ninth ion exchange column 100 from the left becomes the head ion exchange column 100 in the alkali transformation section, and the tenth ion exchange column 100 from the left becomes the tail ion exchange column 100 in the alkali transformation section.

[0111] Therefore, it is only necessary to rotate the valve body 2 to change the corresponding connected interface 24, without the need to set multiple valves at the top and bottom of each column body 1 for control, reducing the risk of operation failures of the valves. Moreover, by changing the external pipeline connected by the valve body 2, it is not necessary to change the position of the column body 1, thereby reducing the risk of surface collapse.

[0112] The above is only the preferred implementation mode of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present invention, several improvements and replacements can still be made, and these improvements and replacements should also be regarded as the protection scope of the present invention.

Claims

1. An ion exchange column, characterized in that, Comprising: A cylinder (1) having an inner cavity filled with an adsorbent for ion exchange reaction; A valve body (2) including a housing (21), a rotating body (22) and a transmission shaft (23). The rotating body (22) is sleeved on the transmission shaft (23) and the two are fixedly connected. The housing (21) is sleeved on the rotating body (22) and the two are rotatably connected. A plurality of interfaces (24) are provided on the housing (21). A hollowed-out portion (25) is provided on the rotating body (22), and the hollowed-out portion (25) extends to the circumferential surface of the rotating body (22). The rotating body (22) has an end face, the axis of the transmission shaft (23) is perpendicular to the plane where the end face is located, and a communication port (26) communicating with the hollowed-out portion (25) is provided on the end face. The communication port (26) communicates the hollowed-out portion (25) with the inner cavity. When the rotating body (22) rotates relative to the housing (21), the hollowed-out portion (25) can respectively form a channel with any one of the interfaces (24), so that any one of the interfaces (24) communicates with the communication port (26) through the hollowed-out portion (25); A driving device connected to the transmission shaft (23), and the driving device drives the transmission shaft (23) to rotate so that the rotating body (22) can rotate to a position where the hollowed-out portion (25) communicates with any one of the interfaces (24).

2. The ion exchange column according to claim 1, wherein: A pair of the valve bodies (2) are correspondingly provided for each cylinder (1), and each pair of the valve bodies (2) are respectively provided at the top and bottom of the cylinder (1).

3. The ion exchange column according to claim 1, wherein: The interfaces (24) are uniformly provided on the surface of the housing (21).

4. The ion exchange column according to claim 1, wherein: Six interfaces (24) are provided on each valve body (2).

5. The ion exchange column according to claim 1, wherein: The hollowed-out portion (25) is in a groove shape provided on the outer surface of the rotating body (22), and the opening of the hollowed-out portion (25) on the end face is the communication port (26).

6. The ion exchange column according to claim 1, wherein: The communication port (26) is in a fan-shaped ring shape.

7. A continuous ion exchange system, characterized in that, Comprising: The ion exchange column (100) according to claim 1, and a plurality of the ion exchange columns (100) are provided; A plurality of series pipes (200) are provided for connecting to one interface (24) on each of the valve bodies (2) of two adjacent ion exchange columns (100) respectively, so that at least a part of the ion exchange columns (100) are connected and communicated through the series pipes (200); A plurality of main pipes (300) are provided, and each main pipe (300) is communicated with one interface (24) of the valve body (2) of at least one ion exchange column (100).

8. The continuous ion exchange system according to claim 7, wherein Further comprising: One pair of the valve bodies (2) is correspondingly arranged for each of the cylinders (1), and each pair of the valve bodies (2) is respectively arranged at the top and the bottom of the cylinder (1); One of the interfaces (24) of the valve body (2) at the top of each cylinder (1) is communicated with one of the interfaces (24) of the valve body (2) at the bottom of another cylinder (1) on the left side through one of the series pipelines (200), and one of the interfaces (24) of the valve body (2) at the top of each cylinder (1) is communicated with one of the interfaces (24) of the valve body (2) at the bottom of another cylinder (1) on the right side through one of the series pipelines (200).

9. The continuous ion exchange system according to claim 8, characterized in that, The number of the main pipes (300) is seven. Three of the interfaces (24) of the valve body (2) at the top of each cylinder (1) are respectively connected with three of the main pipes (300), and four of the interfaces (24) of the valve body (2) at the bottom of each cylinder (1) are respectively connected with four of the other main pipes (300); The three main pipes (300) connected with the valve body (2) at the top of the cylinder (1) are respectively: a brine main pipe (311), a pure water main pipe (313), and a pure water recovery pipeline (316); the four main pipes (300) connected with the valve body (2) at the bottom of the cylinder (1) are respectively: a first tail liquid main pipe (312), a brine recovery main pipe (314), a qualified liquid product main pipe (315), and a tail liquid utilization pipeline (317).

10. The continuous ion exchange system according to claim 8, wherein The number of the main pipes (300) is eight. Four of the interfaces (24) of the valve body (2) at the top of each cylinder (1) are respectively connected with four of the main pipes (300), and four of the interfaces (24) of the valve body (2) at the bottom of each cylinder (1) are respectively connected with four of the other main pipes (300); The four main pipes (300) connected with the valve body (2) at the top of the cylinder (1) are respectively: a material main pipe (351), an acid main pipe (352), an alkali main pipe (353), and an industrial water main pipe (354); the four main pipes (300) connected with the valve body (2) at the bottom of the cylinder (1) are respectively: a second tail liquid main pipe (355), a sewage discharge main pipe (356), a material recovery main pipe (357), and a water recovery main pipe (358).

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