Filtering device

Abstract

The utility model discloses a filtering device, which belongs to the technical field of solar cell production and comprises a cavity with a liquid inlet and a liquid outlet, an air supply pipeline extending into the cavity, an exhaust component arranged in the cavity and a feeding mechanism, the exhaust component is communicated with the air supply pipeline, and the feeding mechanism is arranged in the cavity. The exhaust assembly is used for exhausting inert gas input through the gas supply pipeline into the cavity. The feeding mechanism is communicated with the interior of the cavity, and the feeding mechanism is used for conveying a cation adsorbent into the cavity. According to the utility model, the technical effects of improving the stability of the electroplating liquid and being beneficial to improving the quality of tinned products are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to solar cell production technical field, especially relate to a filter device. BACKGROUND

[0002] The tetravalent tin existing in the electroplating solution can react with other components in the electroplating solution, resulting in instability of the electroplating solution, and the instability can further affect the concentration of the divalent tin in the electroplating solution, which is a key factor determining the efficiency and quality of tin plating.

[0003] In the prior art, the electroplating solution is usually filtered and purified by chemical or physical methods to reduce or eliminate the tetravalent tin existing in the electroplating solution. However, the chemical method can easily introduce new impurities, affecting the overall performance of the electroplating solution, possibly exacerbating the instability of the electroplating solution, and even producing more tetravalent tin. The physical method can have low filtering efficiency or complex operation, easily increasing the difficulty of processing the electroplating solution, and possibly leading to a decrease in the quality of electroplated products, which is difficult to apply in large-scale production workshops.

[0004] Therefore, it is necessary to provide a new technical solution to solve the above technical problems. INVENTION CONTENTS

[0005] The technical problem to be solved by the utility model is to improve the stability of the electroplating solution and to easily reduce the quality of tin-plated products.

[0006] To solve the above technical problems, the utility model provides a filter device, which comprises a cavity with a liquid inlet and a liquid outlet, a gas supply pipeline extending into the cavity, an exhaust assembly arranged in the cavity, and a feeding mechanism, the exhaust assembly is in communication with the gas supply pipeline, and the exhaust assembly is used for discharging inert gas input through the gas supply pipeline into the cavity; the feeding mechanism is in communication with the cavity, and the feeding mechanism is used for conveying cation adsorbent into the cavity.

[0007] Optionally, the exhaust assembly comprises an air inlet end in communication with the gas supply pipeline and an exhaust end in communication with the air inlet end, the exhaust end discharges inert gas input through the gas supply pipeline and the air inlet end into the cavity in sequence, and the exhaust end guides the inert gas to revolve along the circumference of the cavity.

[0008] Optionally, the exhaust end comprises a plurality of exhaust ports, and the plurality of exhaust ports are arranged along the axial direction of the cavity, and the exhaust direction of the exhaust port is the circumferential direction of the cavity.

[0009] Optionally, the feeding mechanism comprises a liquid level measurer and a proportioning device arranged in the cavity, the proportioning device is in communication with the cavity, and the proportioning device is connected with the liquid level measurer, the proportioning device is used to deliver a preset amount of cation adsorbent into the cavity according to the increasing liquid level value obtained by the liquid level measurer.

[0010] Optionally, the liquid level measurer comprises a liquid initial level sensor and a set liquid level sensor arranged in the cavity respectively, the liquid initial level sensor and the set liquid level sensor are arranged in an interval along the axial direction of the cavity, the liquid initial level sensor and the set liquid level sensor are connected with the proportioning device respectively, the liquid initial level sensor is used to obtain an initial liquid level value in the cavity, when the set liquid level sensor detects that the liquid level in the cavity reaches the increasing liquid level value, the proportioning device delivers a preset amount of cation adsorbent into the cavity.

[0011] Optionally, the proportioning device comprises a storage chamber for storing cation adsorbent and a dosing dish in communication with the cavity and the storage chamber respectively, the dosing dish receives the preset amount of cation adsorbent delivered by the storage chamber, and the dosing dish delivers the preset amount of cation adsorbent into the cavity.

[0012] Optionally, the filtering device further comprises a clamping groove arranged on the inner wall of the cavity and a filter, the filter comprises a filter cloth detachably connected with the clamping groove, and a sealing ring embedded in the clamping groove and connected with the filter cloth.

[0013] Optionally, the filtering device further comprises a secondary filtering pipeline, one end of the secondary filtering pipeline and the other end of the secondary filtering pipeline are in communication with the cavity respectively, and the filter is located between the one end of the secondary filtering pipeline and the other end of the secondary filtering pipeline.

[0014] Optionally, the filtering device further comprises a cooling assembly arranged in the cavity, the cooling assembly is used to cool the cavity.

[0015] Optionally, the filtering device further comprises a detector and a liquid taking pipeline arranged in the cavity respectively, the liquid taking pipeline is connected with the detector, and the detector is used to detect the liquid input through the liquid taking pipeline.

[0016] Beneficial effects:

[0017] The utility model provides a filter equipment, through the gas supply line extension to the inside of the cavity with liquid inlet and liquid outlet, exhaust component sets up in the inside of the cavity, exhaust component communicates with the gas supply line, and the inert gas of gas supply line import is transported to the inside of the cavity through exhaust component. The inside of the cavity is communicated with the putting mechanism, and the putting mechanism transports cation adsorbent to the inside of the cavity. In this way, in the process that adsorbent carries out adsorption and filtration to the tetravalent tin in the liquid medicine in the inside of the cavity, the liquid medicine and inert gas contact and realize oxygen -free filtration, avoid the liquid medicine and oxygen contact and carry out oxidation reaction and produce more tetravalent tin, can reduce the production of impurity. The flowability of the inert gas of input simultaneously can drive the liquid medicine to flow, realize no real object stirring, and be favorable to high -efficient adsorption. Thus reach can improve the stability of electroplating solution, and the technical effect that the quality of tinning product is improved is favorable. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed in the embodiments will be briefly introduced as follows, obviously, the drawings in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying creative labor, other drawings can also be obtained according to these drawings.

[0019] Figure 1 The structure schematic view of a filter equipment provided for the embodiments of the utility model.

[0020] Figure 2 The side view of exhaust component, exhaust port, cooling assembly, storage chamber, dosing dish, neutralization and cooling section pipeline and filtration pipeline in the filter equipment provided for the embodiments of the utility model.

[0021] Figure 3 The top view of cavity, exhaust component and cooling assembly in the filter equipment provided for the embodiments of the utility model.

[0022] Figure 4 The structure schematic view of gas supply line, liquid level measurer, secondary filtration pipeline, liquid inlet and neutralization and cooling section pipeline in the filter equipment provided for the embodiments of the utility model.

[0023] Figure 5 The structure schematic view of clamping groove and filter cloth in the filter equipment provided for the embodiments of the utility model.

[0024] Figure 6 The top view of cavity and filter cloth in the filter equipment provided for the embodiments of the utility model.

[0025] Figure 7 The side view of sealing ring and filter cloth in the filter equipment provided for the embodiments of the utility model.

[0026] Figure 8 The utility model provides a kind of filter device in the structure schematic diagram of detecting instrument, liquid taking pipeline, secondary filtration pipeline and go to machine platform tank body pipeline provided for the embodiment of the utility model.

[0027] The meanings of various reference numerals in the drawings are as follows: 1-cavity, 11-liquid inlet, 12-liquid outlet, 13-clamping groove, 2-gas supply pipeline, 3-exhaust assembly, 31-gas inlet end, 32-exhaust end, 321-exhaust port, 4-dispensing mechanism, 5-liquid level gauge, 51-liquid level initial sensor, 52-set liquid level sensor, 6-proportioning device, 61-storage chamber, 62-proportioning vessel, 7-filter, 71-filter cloth, 72-sealing ring, 8-secondary filtration pipeline, 9-cooling assembly, 10-detecting instrument, 101-liquid taking pipeline, 102-go to neutralization and cooling section pipeline, 103-go to filtration pipeline, 104-go to machine platform tank body pipeline, 105-first position, 106-second position, 107-third position. DETAILED DESCRIPTION

[0028] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, and are only used to explain the present application, and cannot be understood as a limitation on the present application.

[0029] In order to enable the persons skilled in the art to better understand the scheme of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below by referring to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the persons skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] In the embodiments of the present application, at least one means one or more, and multiple means two or more than two. In the description of the present application, the words "first", "second", "third" and the like are only used for distinguishing the purpose of description, and cannot be understood as indicating or implying relative importance, and cannot be understood as indicating or implying order.

[0031] In this specification, references such as "one embodiment" or "some embodiments" mean that one or more embodiments of this application include the specific features, structures, or characteristics described in connection with that embodiment. Therefore, the terms "comprising," "including," "having," and variations thereof in this specification all mean "including but not limited to," unless otherwise specifically emphasized. It should be noted that in the embodiments of this application, "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone.

[0032] It should be noted that, in the embodiments of this utility model, when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intervening component. Furthermore, in the embodiments of this application, "connection" can also be understood as an electrical connection; the connection between two electrical components can be a direct or indirect connection between the two electrical components. For example, the connection between A and B can be a direct connection between A and B, or an indirect connection between A and B through one or more other electrical components. The terms "vertical," "horizontal," "left," "right," and similar expressions used in the embodiments of this utility model are for illustrative purposes only and are not intended to limit the utility model.

[0033] This utility model provides a filtration device; please refer to [link to relevant documentation]. Figures 1 to 8 As shown, Figure 1 This is a schematic diagram of the structure of a filtration device provided in an embodiment of the present invention. Figure 2 This is a side view of the exhaust assembly, exhaust port, cooling assembly, storage chamber, measuring dish, neutralization and cooling section pipeline, and filter pipeline in a filtration device provided by an embodiment of this utility model. Figure 3 This is a top view of the cavity, exhaust assembly, and cooling assembly in a filtration device provided by an embodiment of this utility model. Figure 4 This is a schematic diagram of the structure of the air supply pipeline, liquid level measuring device, secondary filtration pipeline, liquid inlet, and neutralization and cooling section pipeline in a filtration device provided by an embodiment of this utility model. Figure 5 This is a schematic diagram of the structure of the slot and filter cloth in a filtration device provided by an embodiment of the present invention. Figure 6 This is a top view of the cavity and filter cloth in a filtration device provided in an embodiment of the present invention. Figure 7 This is a side view of a filter cloth in a filtration device provided in an embodiment of the present invention. Figure 8It is the structural schematic view of detection instrument, liquid taking pipeline, secondary filtering pipeline and machine table tank body pipeline in the filtering device provided by the embodiment of the utility model. The filtering device provided by the embodiment of the utility model comprises a cavity 1, a gas supply pipeline 2, an exhaust assembly 3 and a feeding mechanism 4, the cavity 1 has a liquid inlet 11 and a liquid outlet 12, the gas supply pipeline 2 extends to the inside of the cavity 1, the exhaust assembly 3 is arranged in the inside of the cavity 1, the exhaust assembly 3 is communicated with the gas supply pipeline 2, and the exhaust assembly 3 is used for discharging the inert gas input through the gas supply pipeline 2 to the inside of the cavity 1. The feeding mechanism 4 is communicated with the inside of the cavity 1, and the feeding mechanism 4 is used for conveying the cation adsorbent to the inside of the cavity 1.

[0034] The inert gas comprises nitrogen. The liquid inlet 11 and the liquid outlet 12 are used for introducing the liquid to be treated and discharging the treated liquid respectively. After the liquid to be treated is introduced into the cavity 1 through the liquid inlet 11, the gas supply pipeline 2 is started to input the inert gas into the cavity 1, and at the same time, the exhaust assembly 3 starts to work to discharge the inert gas, and then the cation adsorbent is conveyed into the cavity 1 through the feeding mechanism 4 to adsorb and filter the tetravalent tin in the liquid, and the filtered liquid can be discharged through the liquid outlet 12.

[0035] In the embodiment, the gas supply pipeline 2 extends to the inside of the cavity 1 with the liquid inlet 11 and the liquid outlet 12, the exhaust assembly 3 is arranged in the inside of the cavity 1, the exhaust assembly 3 is communicated with the gas supply pipeline 2, and the inert gas input by the gas supply pipeline 2 is conveyed to the inside of the cavity 1 through the exhaust assembly 3. The feeding mechanism 4 is communicated with the inside of the cavity 1, and the feeding mechanism 4 conveys the cation adsorbent to the inside of the cavity 1. In this way, in the process that the adsorbent adsorbs and filters the tetravalent tin in the liquid in the cavity 1, the liquid contacts with the inert gas to realize oxygen-free filtration, so that the liquid is prevented from being oxidized to produce more tetravalent tin after contacting with oxygen, and the generation of impurities can be reduced. At the same time, the flowability generated by the input inert gas can drive the liquid to flow, so that the liquid is stirred without real objects, and high-efficiency adsorption is facilitated. Thus, the stability of the electroplating liquid can be improved, and the quality of the tinned product can be improved.

[0036] As an implementation mode, please refer to Figure 1 and Figure 2, the exhaust assembly 3 includes an air inlet end 31 and an exhaust end 32, the number of exhaust assemblies 3 can be multiple, in a preferred embodiment, the number of exhaust assemblies 3 can be 1, 1 exhaust assembly 3 will less occupy the space inside the cavity 1, at this time 1 exhaust assembly 3 includes 1 air inlet end 31 and 1 exhaust end 32, the air inlet end 31 and the exhaust end 32 are two ends of the exhaust assembly 3, the air inlet end 31 and the exhaust end 32 can be integrally formed, the air inlet end 31 refers to one end of the exhaust assembly 3 which communicates with the gas supply pipeline 2, the exhaust end 32 refers to one end of the exhaust assembly 3 which communicates with the air inlet end 31, the exhaust end 32 discharges the inert gas input in turn through the gas supply pipeline 2 and the air inlet end 31, the exhaust end 32 guides the inert gas to revolve along the circumference of the cavity 1, if the exhaust direction of the exhaust end 32 is consistent with the circumference of the cavity 1, it can guide the inert gas to discharge along the circumference of the cavity 1, by increasing or decreasing the gas supply pressure of the gas supply pipeline 2, the pressure of the inert gas discharged from the exhaust end 32 can be adjusted. After the inert gas is guided to revolve along the circumference of the cavity 1 by the exhaust end 32, it can effectively displace the original gas in the cavity 1, and also can enhance the flowability of the liquid medicine, realize no physical stirring, and be beneficial to the high-efficiency adsorption of the cationic adsorbent to the tetravalent tin in the liquid medicine.

[0037] In some embodiments, please see Figures 1 to 3 , the exhaust end 32 includes a plurality of exhaust ports 321, the plurality of exhaust ports 321 are arranged along the axial direction of the cavity 1, and the exhaust direction of the exhaust port 321 is the circumferential direction of the cavity 1. The plurality of exhaust ports 321 are arranged along the axial direction, and the exhaust along the circumferential direction can make the inert gas more uniformly distributed in the cavity 1, improve the flowability of the liquid medicine and the oxygen-free filtering effect, and help to reduce the impurities in the liquid medicine and improve the utilization rate of the cationic adsorbent.

[0038] In some embodiments, please see Figures 1 to 2 , the feeding mechanism 4 includes a liquid level measurer 5 and a proportioning device 6, the liquid level measurer 5 is arranged in the interior of the cavity 1, the proportioning device 6 communicates with the interior of the cavity 1, and the proportioning device 6 is connected with the liquid level measurer 5, the proportioning device 6 is used for conveying a preset amount of cationic adsorbent into the interior of the cavity 1 according to the increased liquid level value of the cavity 1 obtained by the liquid level measurer 5. By monitoring the liquid level change in the cavity 1 in real time through the liquid level measurer 5, when the liquid level reaches a preset increase value, the proportioning device 6 automatically starts to convey a preset amount of cationic adsorbent into the cavity 1, which can improve the operation efficiency and ensure the accurate feeding of the cationic adsorbent, and is beneficial to improving the filtering effect of tetravalent tin.

[0039] In some embodiments, please see Figures 1 to 4The liquid level measurer 5 comprises a liquid level initial sensor 51 and a set liquid level sensor 52, which are arranged in the interior of the cavity 1 and are spaced apart along the axial direction of the cavity 1, and are connected with the proportioning device 6. The liquid level initial sensor 51 is used to obtain an initial liquid level value in the interior of the cavity 1. When the set liquid level sensor 52 detects that the liquid level in the interior of the cavity 1 reaches an increased liquid level value, the proportioning device 6 delivers a preset amount of cation adsorbent into the interior of the cavity 1. The initial liquid level value refers to the original liquid level height of the liquid in the interior of the cavity 1. The height of the set liquid level sensor 52 is higher than that of the liquid level initial sensor 51. When the liquid in the interior of the cavity 1 is continuously increased, the liquid level rises until it reaches the height of the set liquid level sensor 52. At this time, the set liquid level sensor 52 sends a signal to the proportioning device 6 that the liquid level reaches the height. The proportioning device 6 delivers a preset amount of cation adsorbent into the cavity 1. The preset amount of cation adsorbent refers to the amount of cation adsorbent corresponding to the increase of the liquid level from the liquid level initial sensor 51 to the height of the set liquid level sensor 52. By arranging the liquid level initial sensor 51 and the set liquid level sensor 52, the filtration efficiency is improved, and the tetravalent tin in the liquid medicine is effectively prevented from exceeding the standard.

[0040] In some embodiments, referring to Figure 1 The proportioning device 6 comprises a storage chamber 61 and a dosing dish 62. The storage chamber 61 is used to store cation adsorbent. The dosing dish 62 is in communication with the interior of the cavity 1 and the storage chamber 61, respectively. The dosing dish 62 receives the preset amount of cation adsorbent delivered by the storage chamber 61 and delivers the preset amount of cation adsorbent into the interior of the cavity 1. The communication position of the dosing dish 62 with the cavity 1 is between the first position 105 and the second position 106. The storage chamber 61 is used to store sufficient cation adsorbent, which can be delivered into the interior of the cavity 1 through the dosing dish 62.

[0041] In some embodiments, when the set liquid level sensor 52 detects that the liquid level reaches the height corresponding to the increased liquid level value, the electromagnetic switch of the storage chamber 61 is opened. At this time, the cation adsorbent in the storage chamber 61 enters the dosing dish 62 and then enters the cavity 1. When the cation adsorbent entering the dosing dish 62 reaches the preset amount, the electromagnetic switch is closed. At this time, the cation adsorbent will not be delivered into the cavity 1 through the dosing dish 62. In addition, by controlling the opening time of the electromagnetic switch, the cation adsorbent can be quantitatively delivered. This not only improves the filtration efficiency, but also ensures the full use of the cation adsorbent.

[0042] In some embodiments, referring to Figures 5 to 7 The filter device provided in the embodiment of the utility model further comprises a filter 7 and a clamping groove 13 arranged on the inner wall of the cavity 1, the filter 7 comprises filter cloth 71 and a sealing ring 72, the filter cloth 71 is detachably connected with the clamping groove 13, the sealing ring 72 is embedded in the inside of the clamping groove 13, and the sealing ring 72 is connected with the filter cloth 71. The middle region of the filter cloth 71 has a plurality of filter holes, and the solid impurities in the medicinal liquid are filtered through the plurality of filter holes, the edge region of the filter cloth 71 close to the clamping groove 13 can be provided with the sealing ring 72, the sealing ring 72 can be made of silica gel material, the sealing ring 72 can be integrally formed with the edge region of the filter cloth 71, when the edge region of the filter cloth 71 is embedded in the inside of the clamping groove 13, the sealing ring 72 is interference fitted with the clamping groove 13, and the edge region of the filter cloth 71 embedded in the inside of the clamping groove 13 is sealed. The number of filter cloths 71 can be multiple, and the multiple filter cloths 71 are stacked. The filter cloth 71 is located between the second position 106 and the third position 107, and in the process that the medicinal liquid is filtered by the cavity 1 for stannum adsorption, the filter cloth 71 can effectively intercept the solid impurities in the medicinal liquid. Meanwhile, the sealing ring 72 enhances the sealing effect between the filter cloth 71 and the cavity 1, avoids leakage of the medicinal liquid, and ensures the continuity and stability of the filtering process.

[0043] In some embodiments, referring to Figure 1 The filter device provided in the embodiment of the utility model further comprises a secondary filter pipeline 8, one end of the secondary filter pipeline 8 and the other end of the secondary filter pipeline 8 are respectively communicated with the cavity 1, and the filter 7 is located between the one end of the secondary filter pipeline 8 and the other end of the secondary filter pipeline 8. The secondary filter pipeline 8 can make the medicinal liquid in the cavity 1 undergo a twice filtering process, so that the impurities in the medicinal liquid are more effectively removed, the double filtering can improve the purity and stability of the medicinal liquid, and helps to reduce the defects that can occur in the electroplating process.

[0044] In some embodiments, referring to Figure 1 and Figure 8The filter device provided by the embodiment of the utility model still includes detector 10 and liquid taking pipeline 101, detector 10 is arranged in the inside of cavity 1, liquid taking pipeline 101 is arranged in the inside of cavity 1, liquid taking pipeline 101 is connected with detector 10, and detector 10 is used for detecting the liquid medicine input through liquid taking pipeline 101.The liquid taking port of liquid taking pipeline 101 can be located at third position 107, and detector 10 and liquid taking pipeline 101 can real-time monitor the content of tetravalent tin and other related parameters in the liquid medicine during the filtering process, and discover and adjust the abnormal situation in the filtering process in time, for example, when detector 10 detects that the liquid medicine input through liquid taking pipeline 101 does not reach the qualified standard, the liquid medicine filtered through filter cloth 71 can be input through the other end of secondary filtering pipeline 8, and then be transported to the inside of cavity 1 through one end of secondary filtering pipeline 8, the part of liquid medicine can be filtered through filter cloth 71 again, thereby ensuring the stability and reliability of the filtering process.Meanwhile, by regularly detecting the content of tetravalent tin in the liquid medicine, the performance and effect of the filter device can be evaluated.

[0045] In some embodiments, referring to Figure 1 and Figure 3 The filter device provided by the embodiment of the utility model still includes cooling assembly 9, cooling assembly 9 is arranged in the inside of cavity 1, and cooling assembly 9 is used for cooling the inside of cavity 1.Cooling assembly 9 can include heat exchange pipeline arranged in the inside of cavity 1, and the heat absorbed by the heat exchange pipeline from the inside of cavity 1 is discharged to the outside of cavity 1 after the heat exchange pipeline absorbs the heat from the inside of cavity 1.During the tetravalent tin filtering process, the temperature of the liquid medicine is one of the important factors affecting the filtering efficiency and the performance of the adsorbent, and the temperature that is too high can cause the chemical reaction in the liquid medicine to accelerate, produce more impurities, and also affect the adsorption capacity of the adsorbent.Through the cooling treatment of the liquid medicine by cooling assembly 9, the liquid medicine can be kept in the suitable temperature range, and this is beneficial to improve the filtering efficiency and the utilization rate of the adsorbent.

[0046] In some embodiments, the filter device provided by the embodiments of the present application can further include a neutralization and cooling section pipeline 102, a filtration pipeline 103 and a machine tank body pipeline 104. The two ends of the neutralization and cooling section pipeline 102 are respectively communicated with the cavity 1. One end of the neutralization and cooling section pipeline 102 is between the above-mentioned liquid level initial sensor 51 and the above-mentioned set liquid level sensor 52. The other end of the neutralization and cooling section pipeline 102 is between the above-mentioned liquid level initial sensor 51 and the above-mentioned filter 7. The neutralization and cooling section pipeline 102 is used for communication outside the cavity 1, and a first position 105 is located between the two ends of the neutralization and cooling section pipeline 102. For example, the neutralization and cooling section pipeline 102 can be provided with an observation window for observing the liquid level of the cavity 1. The two ends of the filtration pipeline 103 are respectively communicated with the cavity 1. A second position 106 is located between the two ends of the filtration pipeline 103. For example, the filtration pipeline 103 can be provided with an observation window for observing the liquid level of the cavity 1. The above-mentioned filter 7 is located between the two ends of the filtration pipeline 103. The machine tank body pipeline 104 is communicated with the cavity 1. The machine tank body pipeline 104 is located between the above-mentioned filter 7 and the above-mentioned detector 10. The machine tank body pipeline 104 is used to provide filtered liquid for the next process.

[0047] Finally, it should be explained that the above specific embodiments are only used to illustrate the technical solutions of the present application and not to limit. Although the present application is described in detail with reference to examples, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A filtration device, characterized in that, The filtration device includes a cavity with an inlet and an outlet, an air supply pipe extending into the cavity, an exhaust assembly disposed within the cavity, and a dispensing mechanism. The exhaust assembly is connected to the air supply pipe and is used to discharge inert gas input through the air supply pipe into the cavity. The dispensing mechanism is connected to the cavity and is used to deliver a cationic adsorbent into the cavity.

2. The filtration device according to claim 1, characterized in that, The exhaust assembly includes an air inlet connected to the air supply pipeline and an exhaust end connected to the air inlet. The exhaust end discharges inert gas that has been sequentially input through the air supply pipeline and the air inlet into the cavity. The exhaust end guides the inert gas to circumferentially rotate around the cavity.

3. The filtration device according to claim 2, characterized in that, The exhaust end includes multiple exhaust ports, which are arranged along the axial direction of the cavity, and the exhaust direction of the exhaust ports is the circumferential direction of the cavity.

4. The filtration device according to claim 1, characterized in that, The dispensing mechanism includes a liquid level measuring device and a proportioning device disposed in the cavity. The proportioning device is connected to the cavity and is connected to the liquid level measuring device. The proportioning device is used to deliver a preset amount of cationic adsorbent into the cavity according to the increase in liquid level value in the cavity obtained by the liquid level measuring device.

5. The filtration device according to claim 4, characterized in that, The liquid level measuring device includes an initial liquid level sensor and a set liquid level sensor respectively disposed in the cavity. The initial liquid level sensor and the set liquid level sensor are arranged at intervals along the axial direction of the cavity. The initial liquid level sensor and the set liquid level sensor are respectively connected to the mixing device. The initial liquid level sensor is used to obtain the initial liquid level value in the cavity. When the set liquid level sensor detects that the liquid level in the cavity has reached the increased liquid level value, the mixing device delivers a preset amount of cationic adsorbent into the cavity.

6. The filtration device according to claim 4, characterized in that, The mixing device includes a storage chamber for storing cationic adsorbent and a measuring vessel that is connected to the cavity and the storage chamber respectively. The measuring vessel receives a preset amount of cationic adsorbent from the storage chamber and delivers the preset amount of cationic adsorbent into the cavity.

7. The filtration device according to claim 1, characterized in that, The filtration device further includes a slot and a filter on the inner wall of the cavity. The filter includes a filter cloth detachably connected to the slot and a sealing ring embedded in the slot and connected to the filter cloth.

8. The filtration device according to claim 7, characterized in that, The filtration device further includes a secondary filtration pipeline, one end of which and the other end of which are respectively connected to the cavity, and the filter is located between one end of the secondary filtration pipeline and the other end of the secondary filtration pipeline.

9. The filtration device according to claim 1, characterized in that, The filtration device further includes a cooling component disposed within the cavity, the cooling component being used to cool the cavity.

10. The filtration device according to claim 1, characterized in that, The filtration device also includes a detector and a liquid collection line respectively disposed in the cavity. The liquid collection line is connected to the detector, and the detector is used to detect the medicine liquid input through the liquid collection line.

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