Dye ion replacement device

Abstract

The utility model provides a dye ion replacement device which is provided with an ion exchange tower and a modifier, a first cavity is formed in the ion exchange tower and filled with first exchange resin and second exchange resin, and the first exchange resin and the second exchange resin are arranged in a stacked mode. The first exchange resin is used for carrying out metal cation replacement on the dye aqueous solution, and the second exchange resin is used for carrying out inorganic anion replacement on the dye aqueous solution; the modifying device comprises a first liquid inlet, a second liquid inlet and a modifying cavity, the first liquid inlet and the second liquid inlet are both formed in the top of the modifying cavity, and the modifying device is communicated with the ion exchange tower through the first liquid inlet, so that harmful ion impurities in the dye aqueous solution can be removed at low cost through the exchange resin; and the ammonium salt or lithium salt dye aqueous solution is formed through the modifier, so that the solubility of the dye is improved, and the problem that the dye aqueous solution corrodes the spray head or the spray head is blocked due to ion crystallization separation is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of inkjet ink dye modification, especially relates to a dye ion replacement device. BACKGROUND

[0002] In the process of dye preparation, in order to improve the water solubility of dye, saltization is often needed after dye synthesis, so that the dye forms a soluble salt. However, the saltization process causes too many anions / cations (inorganic salt ions) to be mixed in the dye. When configuring inkjet ink, these inorganic salt ions are prone to crystallization or the formation of insoluble salts due to changes in pH caused by formula additives or ink evaporation, resulting in corrosion of the ink channel or blockage of the nozzle.

[0003] In the prior art, the process for removing inorganic salts is mostly nanofiltration membrane, which removes inorganic salt molecules through nanometer pore size filter membrane. However, the nanofiltration membrane dialysis process is costly, and the nanofiltration membrane is expensive and difficult to regenerate. At the same time, high-pressure dialysis operation is needed, which is energy-consuming and dangerous. UTILITY MODEL CONTENT

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art, provide a dye ion replacement device, and further remove harmful ion impurities in the dye aqueous solution at low cost through exchange resin, and form an ammonium salt or a lithium salt of the dye aqueous solution through a modifier, thereby further improving the solubility of the dye and improving the problem of corrosion of the dye aqueous solution on the nozzle or ion crystallization and blockage of the nozzle.

[0005] To achieve the above-mentioned purpose, in a first aspect, the utility model embodiment provides a dye ion replacement device, comprising:

[0006] The ion exchange tower is internally provided with a first cavity, and the first cavity is used for loading the dye aqueous solution and performing ion replacement on the dye aqueous solution; wherein the first cavity is filled with first exchange resin and second exchange resin, the first exchange resin and the second exchange resin are arranged in a stack, the first exchange resin is used for replacing metal cations in the dye aqueous solution, and the second exchange resin is used for replacing inorganic anions in the dye aqueous solution.

[0007] The modifier comprises a first liquid inlet, a second liquid inlet and a modification cavity, the first liquid inlet and the second liquid inlet are arranged at the top of the modification cavity, the modifier is connected with the ion exchange tower through the first liquid inlet, the first liquid inlet is used for inputting the replaced dye aqueous solution into the modification cavity, the second liquid inlet is used for inputting a modification agent into the modification cavity, and the modification cavity is used as a cavity for ion replacement between the modification agent and the dye aqueous solution.

[0008] Furthermore, in some embodiments, the dye ion replacement device further includes a delivery pump, which is connected to the ion exchange tower and is used to deliver the dye aqueous solution to the ion exchange tower.

[0009] Furthermore, in some embodiments, a first liquid inlet device is further provided inside the ion exchange tower, and the first liquid inlet device is provided above the first exchange resin and the second exchange resin. A first pipe is further provided outside the ion exchange tower, and one end of the first pipe is connected to the first liquid inlet device, and the other end of the first pipe is connected to the delivery pump. The first liquid inlet device is used as a connecting switch between the first pipe and the first cavity, and the first pipe is used to input regeneration liquid into the first cavity to restore the ion replacement capacity of the first exchange resin or the second exchange resin.

[0010] Furthermore, in some embodiments, a second liquid inlet device is provided at the top of the ion exchange tower, and a second pipe is provided on the outside of the ion exchange tower, one end of the second pipe is connected to the second liquid inlet device, and the second liquid inlet device is used as a connecting switch between the first pipe and the first cavity, and the second pipe is used to transmit pure water or dye aqueous solution.

[0011] Furthermore, in some embodiments, the other end of the second pipe is also connected to a third pipe and a fourth pipe, the third pipe is used to input pure water for forward washing of the first cavity or input dye aqueous solution into the first cavity, and the fourth pipe is used to discharge pure water for backwashing of the first cavity.

[0012] Furthermore, in some embodiments, a drain port is provided at the bottom of the ion exchange tower, and a fifth pipe is provided outside the ion exchange tower. The drain port is connected to one end of the fifth pipe, and the fifth pipe is used to transport pure water or the replaced dye aqueous solution.

[0013] Furthermore, in some embodiments, the other end of the fifth pipe is also connected to a sixth pipe, a seventh pipe and an eighth pipe. The sixth pipe is used to discharge the regeneration liquid or the pure water for forward washing of the first cavity, the seventh pipe is used to discharge the replaced dye aqueous solution, and the eighth pipe is used to input pure water for backwashing the first cavity.

[0014] Furthermore, in some embodiments, a ninth pipe is provided outside the ion exchange tower, the ninth pipe is connected to the first cavity, and the ninth pipe is used to discharge the gas in the first cavity.

[0015] Furthermore, in some embodiments, a second cavity is provided inside the ion exchange tower, the second cavity is provided below the first cavity, and the second cavity is provided with a cushioning plate, which is used to support the first exchange resin and the second exchange resin.

[0016] Furthermore, in some embodiments, the modifier also includes an agitator, which is used to dissolve the modifier and mix it evenly with the dye aqueous solution. The agitator includes a stirring motor and a stirring shaft, which is connected to the stirring motor. The stirring motor is located outside the modifier, and the stirring shaft is located inside the modification cavity.

[0017] According to an embodiment of the present invention, a dye ion replacement device has at least the following beneficial effects: an ion exchange tower and a reformer are provided, wherein a first cavity is provided inside the ion exchange tower, and the first cavity is used to load a dye aqueous solution and perform ion replacement on the dye aqueous solution; wherein the first cavity is filled with a first exchange resin and a second exchange resin, and the first exchange resin and the second exchange resin are stacked, and the first exchange resin is used to replace the dye aqueous solution with metal cations, and the second exchange resin is used to replace the dye aqueous solution with inorganic anions, thereby being able to remove harmful ionic impurities in the dye aqueous solution at a low cost through the exchange resins;

[0018] In addition, the reformer includes a first liquid inlet, a second liquid inlet and a reforming cavity. The first liquid inlet and the second liquid inlet are both arranged at the top of the reforming cavity. The reformer is connected to the ion exchange tower through the first liquid inlet. The first liquid inlet is used to input the replaced dye aqueous solution into the reforming cavity, and the second liquid inlet is used to input the modifier into the reforming cavity. The reforming cavity is used as a cavity for ion replacement between the modifier and the dye aqueous solution. Furthermore, through the reformer, the dye aqueous solution after resin replacement can be modified into a dye aqueous solution containing highly soluble ammonium ions and lithium ions, further improving the solubility of the dye and improving the problem of corrosion of the dye aqueous solution on the nozzle or clogging of the nozzle by ion crystallization.

[0019] Other features and advantages of the present invention will be described in the following description and will become apparent in part from the description. The purpose and other advantages of the present invention can be achieved and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0022] Figure 1 This is an overall structural diagram of a dye ion replacement device provided by some embodiments of the present invention;

[0023] Figure 2 is a cross-sectional view of an ion exchange tower provided by some embodiments of the present utility model;

[0024] Figure 3 is a cross-sectional view of a reformer provided by some embodiments of the present invention;

[0025] Figure 4 It is a front view of an ion exchange tower provided by some embodiments of the present invention.

[0026] Figure numerals: ion exchange tower 100, first cavity 110, first exchange resin 111, second exchange resin 112, first liquid inlet device 120, second liquid inlet device 130, second cavity 140, cushion partition 141, drain port 150, first pipe 101, second pipe 102, third pipe 103, fourth pipe 104, fifth pipe 105, sixth pipe 106, seventh pipe 107, eighth pipe 108, ninth pipe 109, reformer 200, first liquid inlet 210, second liquid inlet 220, reforming chamber 230, agitator 240, stirring motor 241, stirring shaft 242, delivery pump 300. DETAILED DESCRIPTION

[0027] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0028] In the description of the present invention, if the first and second are described only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features, it should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] In existing technologies, inorganic salt removal is often achieved through the use of nanofiltration membranes, which dialyze small inorganic salt molecules through nanopore membranes. However, nanofiltration membrane dialysis processes are costly, expensive, and difficult to regenerate. Furthermore, high-pressure dialysis is required, resulting in high energy consumption and risks.

[0031] Based on this, an embodiment of the present invention provides a dye ion replacement device, which is provided with an ion exchange tower and a reformer. A first cavity is provided inside the ion exchange tower, and the first cavity is used to load a dye aqueous solution and perform ion replacement on the dye aqueous solution; wherein the first cavity is filled with a first exchange resin and a second exchange resin, and the first exchange resin and the second exchange resin are stacked between them. The first exchange resin is used to replace metal cations in the dye aqueous solution, and the second exchange resin is used to replace inorganic anions in the dye aqueous solution, thereby enabling the exchange resin to remove harmful ionic impurities in the dye aqueous solution at a low cost.

[0032] In addition, the reformer includes a first liquid inlet, a second liquid inlet and a reforming cavity. The first liquid inlet and the second liquid inlet are both arranged at the top of the reforming cavity. The reformer is connected to the ion exchange tower through the first liquid inlet. The first liquid inlet is used to input the replaced dye aqueous solution into the reforming cavity, and the second liquid inlet is used to input the modifier into the reforming cavity. The reforming cavity is used as a cavity for ion replacement between the modifier and the dye aqueous solution. Furthermore, through the reformer, the dye aqueous solution after resin replacement can be modified into a dye aqueous solution containing highly soluble ammonium ions and lithium ions, further improving the solubility of the dye and improving the problem of corrosion of the dye aqueous solution on the nozzle or clogging of the nozzle by ion crystallization.

[0033] Therefore, the embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0034] Reference Figure 1 、 Figure 2 、 Figure 3 As shown, Figure 1 This is an overall structural diagram of the dye ion replacement device provided by some embodiments of the present invention. Figure 2 is a cross-sectional view of an ion exchange tower provided by some embodiments of the present invention, Figure 3is the sectional view of the modifier provided by some embodiments of the utility model, and the dye ion replacement device includes ion exchange tower 100 and modifier 200, and the inside of ion exchange tower 100 is equipped with first cavity 110, and first cavity 110 is used for loading dye aqueous solution and carries out ion replacement to dye aqueous solution, wherein first cavity 110 is filled with first exchange resin 111 and second exchange resin 112, and first exchange resin 111 and second exchange resin 112 are arranged in a laminated mode, first exchange resin 111 is used for carrying out metal cation replacement to dye aqueous solution, second exchange resin 112 is used for carrying out inorganic anion replacement to dye aqueous solution, and then harmful ion impurities in dye aqueous solution can be removed at low cost through exchange resin.

[0035] In some possible embodiments, in the process that dye aqueous solution penetrates first exchange resin 111, Ca 2+ , Mg 2+ , Ba 2+ , Na + , Fe 3+ , Al 3+ and other metal ions in dye aqueous solution penetration are replaced into H + .

[0036] In some possible embodiments, in the process that dye aqueous solution penetrates second exchange resin 112, SO4 2- , NO 3- , CO3 2- , PO4 2- , Cl - and other anions in dye aqueous solution penetration are replaced into OH - .

[0037] It should be noted that if the ion concentration of dye aqueous solution still remains too high after dye aqueous solution passes through ion exchange tower 100, dye aqueous solution can be circulated through ion exchange tower 100 for multiple times, and if the requirement still cannot be met, whether first exchange resin 111 and / or second exchange resin 112 is in a saturated state is checked, and if first exchange resin 111 and / or second exchange resin 112 is in a saturated state, regeneration liquid is input into ion exchange tower 100.

[0038] And, from Figure 3It can be seen that the reformer 200 includes a first liquid inlet 210, a second liquid inlet 220 and a reforming cavity 230. The first liquid inlet 210 and the second liquid inlet 220 are both arranged at the top of the reforming cavity 230. The reformer 200 is connected to the ion exchange tower 100 through the first liquid inlet 210. The first liquid inlet 210 is used to input the replaced dye aqueous solution into the reforming cavity 230, and the second liquid inlet 220 is used to input the modifier into the reforming cavity 230. The reforming cavity 230 is used as a cavity for ion replacement between the modifier and the dye aqueous solution. Furthermore, through the reformer 200, the dye aqueous solution after resin replacement can be modified into a dye aqueous solution containing highly soluble ammonium ions and lithium ions, further improving the solubility of the dye and improving the problem of the dye aqueous solution corroding the nozzle or ion crystallization and clogging the nozzle.

[0039] Further, from Figure 1 It can be seen that the dye ion replacement device further includes a delivery pump 300 . The delivery pump 300 is connected to the ion exchange tower 100 . The delivery pump 300 is used to deliver the dye aqueous solution to the ion exchange tower 100 .

[0040] Further, from Figure 2 It can be seen that a first liquid inlet device 120 is further provided inside the ion exchange tower 100, and the first liquid inlet device 120 is provided above the first exchange resin 111 and the second exchange resin 112. A first pipe 101 is also provided outside the ion exchange tower 100, and one end of the first pipe 101 is connected to the first liquid inlet device 120, and the other end of the first pipe 101 is connected to the delivery pump 300. The first liquid inlet device 120 is used as a connecting switch between the first pipe 101 and the first cavity 110, and the first pipe 101 is used to input regeneration liquid into the first cavity 110 to restore the ion replacement capacity of the first exchange resin 111 or the second exchange resin 112.

[0041] In addition, a second liquid inlet device 130 is provided at the top of the ion exchange tower 100, and a second pipe 102 is provided on the outside of the ion exchange tower 100. The water inlet device is connected to one end of the first pipe 101. The second liquid inlet device 130 is used as a connecting switch between the first pipe 101 and the first cavity 110, and the second pipe 102 is used to transmit pure water or dye aqueous solution.

[0042] Further, refer to Figure 4 As shown, Figure 4 This is a front view of the ion exchange tower provided in some embodiments of the present invention. The other end of the second pipe 102 is also connected to the third pipe 103 and the fourth pipe 104. The third pipe 103 is used to input pure water to wash the first cavity 110 or input a dye aqueous solution into the first cavity 110. The fourth pipe 104 is used to discharge pure water to backwash the first cavity 110.

[0043] Further, from Figure 2 It can be seen that a drain port 150 is provided at the bottom of the ion exchange tower 100 , and a fifth pipe 105 is provided outside the ion exchange tower 100 . The drain port 150 is connected to one end of the fifth pipe 105 , and the fifth pipe 105 is used to transport pure water or the replaced dye aqueous solution.

[0044] Further, from Figure 4 It can be seen that the other end of the fifth pipe 105 is also connected to the sixth pipe 106, the seventh pipe 107 and the eighth pipe 108. The sixth pipe 106 is used to discharge the regeneration liquid or the pure water to perform forward washing on the first cavity 110, the seventh pipe 107 is used to discharge the replaced dye aqueous solution, and the eighth pipe 108 is used to input pure water to perform backwash on the first cavity 110.

[0045] It should be noted that the first cavity 110 can be circulated and cleaned through the second pipe 102 , the third pipe 103 , the fourth pipe 104 , the fifth pipe 105 , the sixth pipe 106 and the eighth pipe 108 , thereby improving the reusability of the ion exchange tower 100 .

[0046] Further, from Figure 4 It can be seen that a ninth pipe 109 is provided outside the ion exchange tower 100 . The ninth pipe 109 is connected to the first cavity 110 . The ninth pipe 109 is used to discharge the gas in the first cavity 110 .

[0047] Further, from Figure 2 It can be seen that a second cavity 140 is provided inside the ion exchange tower 100 . The second cavity 140 is provided below the first cavity 110 . The second cavity 140 is provided with a cushioning plate 141 . The cushioning plate 141 is used to support the first exchange resin 111 and the second exchange resin 112 .

[0048] Further, from Figure 3 It can be seen that the reformer 200 also includes an agitator 240, which is used to dissolve the modifier and mix it evenly with the dye aqueous solution. The agitator 240 includes a stirring motor 241 and a stirring shaft 242. The stirring shaft 242 is connected to the stirring motor 241. The stirring motor 241 is arranged on the outside of the reformer 200, and the stirring shaft 242 is arranged inside the reforming cavity 230, so that the modifier and the dye aqueous solution can be fully mixed, thereby improving the reforming efficiency of the dye aqueous solution.

[0049] It should be understood that in the present invention, "at least one (item)" refers to one or more, and "plurality" refers to two or more. "And / or" is used to describe the association relationship of associated objects, indicating that there can be three relationships. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0050] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A dye ion replacement device, characterized in that: include: An ion exchange tower, wherein a first cavity is provided inside the ion exchange tower, and the first cavity is used to load a dye aqueous solution and perform ion replacement on the dye aqueous solution; wherein the first cavity is filled with a first exchange resin and a second exchange resin, and the first exchange resin and the second exchange resin are stacked between them, the first exchange resin is used to replace the dye aqueous solution with metal cations, and the second exchange resin is used to replace the dye aqueous solution with inorganic anions; a reformer, wherein the reformer includes a first liquid inlet, a second liquid inlet and a reforming cavity, the first liquid inlet and the second liquid inlet are both provided at the top of the reforming cavity, the reformer is connected to the ion exchange tower through the first liquid inlet, the first liquid inlet is used to input the replaced dye aqueous solution into the reforming cavity, the second liquid inlet is used to input a modifier into the reforming cavity, and the reforming cavity is used as a cavity for the modifier to perform ion replacement with the dye aqueous solution.

2. The dye ion replacement device according to claim 1, characterized in that: The system also includes a delivery pump, which is connected to the ion exchange tower and is used to deliver the dye aqueous solution to the ion exchange tower.

3. The dye ion replacement device according to claim 2, characterized in that: A first liquid inlet device is also provided inside the ion exchange tower, and the first liquid inlet device is provided above the first exchange resin and the second exchange resin. A first pipe is also provided outside the ion exchange tower, one end of the first pipe is connected to the first liquid inlet device, and the other end of the first pipe is connected to the delivery pump. The first liquid inlet device is used as a connecting switch between the first pipe and the first cavity, and the first pipe is used to input regeneration liquid into the first cavity to restore the ion replacement capacity of the first exchange resin or the second exchange resin.

4. The dye ion replacement device according to claim 3, characterized in that: A second liquid inlet device is provided on the top of the ion exchange tower, and a second pipe is provided on the outside of the ion exchange tower. One end of the second pipe is connected to the second liquid inlet device. The second liquid inlet device is used as a connecting switch between the first pipe and the first cavity. The second pipe is used to transmit pure water or the dye aqueous solution.

5. The dye ion replacement device according to claim 4, characterized in that: The other end of the second pipe is also connected to a third pipe and a fourth pipe. The third pipe is used to input the pure water to wash the first cavity or input the dye solution into the first cavity. The fourth pipe is used to discharge the pure water to backwash the first cavity.

6. The dye ion replacement device according to claim 4, characterized in that: A drain port is provided at the bottom of the ion exchange tower, and a fifth pipe is provided outside the ion exchange tower. The drain port is connected to one end of the fifth pipe, and the fifth pipe is used to transport the pure water or the replaced dye aqueous solution.

7. The dye ion replacement device according to claim 6, characterized in that: The other end of the fifth pipe is also connected to the sixth pipe, the seventh pipe and the eighth pipe. The sixth pipe is used to discharge the regeneration liquid or the pure water to perform forward washing on the first cavity. The seventh pipe is used to discharge the replaced dye aqueous solution. The eighth pipe is used to input the pure water to perform backwash on the first cavity.

8. The dye ion replacement device according to claim 2, characterized in that: A ninth pipe is provided outside the ion exchange tower, the ninth pipe is communicated with the first cavity, and the ninth pipe is used to discharge the gas in the first cavity.

9. The dye ion replacement device according to claim 1, characterized in that: A second cavity is provided inside the ion exchange tower. The second cavity is provided below the first cavity. A cushioning plate is provided in the second cavity. The cushioning plate is used to support the first exchange resin and the second exchange resin.

10. The dye ion replacement device according to claim 1, characterized in that: The reformer also includes an agitator, which is used to evenly mix the modifier and the dye aqueous solution. The agitator includes a stirring motor and a stirring shaft, which is connected to the stirring motor. The stirring motor is arranged outside the reformer, and the stirring shaft is arranged inside the reforming cavity.

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