A method for removing iron from a dynamically inflated sealed iron remover

Abstract

A method for removing iron using a dynamically inflated sealed iron remover, the method comprising the following steps: S1, inflating the annular inflatable device of the first iron removal component, and simultaneously deflating the annular inflatable device of the second iron removal component, controlling the upward movement of the magnetic rod, the first annular inflatable device scraping off iron filings on the magnetic rod, and the waste liquid being discharged through the gap between the second iron removal component and the magnetic rod; S2, inflating the annular inflatable device of the second iron removal component, and simultaneously introducing a cleaning medium into the second fluid pipeline through the medium inlet, cleaning the iron filings adhering to the surface of the annular inflatable device of the first iron removal component and the waste slurry at the bottom of the cleaning magnetic rod, and discharging the cleaning waste liquid through the medium outlet.

Description

Technical Field

[0001] The present application relates to the field of lithium battery processing, and in particular to a method for removing iron using a dynamic inflatable sealed iron remover. Background Art

[0002] During the production process of lithium batteries, impurities such as iron and other metallic elements may be introduced. These impurities can adversely affect battery performance, such as reducing battery capacity and cycle life. Therefore, lithium batteries must be deironed during production to remove these metallic elements. Deironing equipment is a device specifically designed to remove metallic impurities. It can effectively remove iron and other metallic elements from lithium batteries, improving battery purity and performance.

[0003] The existing technology mainly extracts the magnetic rod that has adsorbed magnetic material from the slurry pipeline, and performs manual or semi-automatic iron removal outside the pipeline. The so-called manual iron removal is to use tools to manually pull the adsorbed slurry with high iron concentration from the magnetic rod into a waste bucket; the so-called semi-automatic iron removal means that the action of pulling the slurry from the magnetic rod can be automatically realized, and the high-concentration waste slurry that flows to the bottom of the magnetic rod needs to be manually removed; in addition, the waste slurry removed requires additional transfer equipment for subsequent transfer processing.

[0004] The common disadvantage of the above two existing iron removal methods is that the slurry will be exposed to the air, and the slurry will emit a pungent and toxic odor, which is very unfriendly to personnel and the environment.

[0005] In addition, manual iron removal has disadvantages such as long operation time and the need for special cleaning staff. Semi-automatic iron removal can only automatically remove the slurry on the outer cylindrical surface of the magnetic rod, and the high-concentration waste slurry flowing to the bottom of the magnetic rod needs to be manually removed.

[0006] In addition, both manual and semi-automatic methods require additional transfer equipment to carry out subsequent transfer processing of the removed waste slurry, making the entire processing chain cumbersome. Summary of the Invention

[0007] The main purpose of this application is to provide a method for removing iron with a dynamic inflatable sealed iron remover, in which the cleaning action is performed automatically in a closed pipe, the slurry will not be exposed to the air, and thus no pungent toxic gas will be emitted into the environment, and there is no need to manually remove the slurry on the bottom end surface of the magnetic rod.

[0008] In order to achieve the above-mentioned objectives, in a first aspect, the present application provides a method for removing iron with a dynamic inflatable sealed iron remover, which includes an outer shell pipe, at least one group of iron removal devices fixedly arranged in the outer shell pipe, the iron removal device including a first fluid pipe, a second fluid pipe, a third fluid pipe, a magnetic rod slidably arranged in the first fluid pipe, the second fluid pipe and the third fluid pipe, a first iron removal assembly arranged between the first fluid pipe and the second fluid pipe, and a second iron removal assembly arranged between the second fluid pipe and the third fluid pipe, the first iron removal assembly and the second iron removal assembly both include a fixed chuck sealing seat, an annular inflatable device fixedly arranged on the chuck sealing seat, a charging / discharging pipe connected to the annular inflatable device, a compressed air source connected to the charging / discharging pipe and an exhaust valve, a side wall of the second fluid pipe is provided with a medium inlet and a medium outlet, and the first fluid pipe, the second fluid pipe and the third fluid pipe are arranged in sequence from top to bottom;

[0009] The deironing method comprises the following steps:

[0010] S1. Inflate the annular inflatable device of the first iron removal assembly and deflate the annular inflatable device of the second iron removal assembly to control the upward movement of the magnetic rod. The first annular inflatable device scrapes off the iron filings on the magnetic rod, and the waste liquid is discharged through the gap between the second iron removal assembly and the magnetic rod;

[0011] S2. Inflate the annular inflation device of the second iron removal component, open the medium outlet and the medium inlet, and at the same time introduce the cleaning medium into the second fluid pipeline through the medium inlet to clean the waste slurry adhering to the surface of the annular inflation device of the first iron removal component and the bottom of the cleaning magnetic rod, and the cleaning waste liquid is discharged through the medium outlet.

[0012] A further improvement is that the chuck sealing seat is detachably connected to the first fluid pipeline and the second fluid pipeline.

[0013] A further improvement is that the chuck sealing seat is connected to the first fluid pipeline and the second fluid pipeline via a quick clamp.

[0014] A further improvement is that a sealing structure is provided between the chuck sealing seat and the quick clamp.

[0015] A further improvement is that the annular inflatable device is an inflatable sealing ring or an inflatable airbag.

[0016] A further improvement is that the medium inlet and the medium outlet are connected to a cleaning pipe, a solenoid valve is provided on the cleaning pipe, and the cleaning pipe at the medium inlet is connected to a cleaning liquid storage source through a pump.

[0017] A further improvement is that the solenoid valve, the compressed air source and the exhaust valve are all controlled by a controller.

[0018] The present invention provides a method for removing iron using a dynamic inflatable sealed iron remover. Compared with the prior art, the advantageous effects are as follows: first, the iron removal device is arranged in the outer shell pipeline, thereby removing iron in the pipeline, and the cleaning action is entirely carried out in a closed pipeline. The slurry will not be exposed to the air, thereby not emitting pungent toxic gases into the environment. In addition, the action of removing the impurity slurry from the magnetic rod is fully automatic, and there is no need to manually remove the slurry on the bottom end surface of the magnetic rod. Finally, the removed impurity slurry flows directly into the waste discharge pipeline to the subsequent links, and the waste liquid does not need to be transferred in the middle, which is simple and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings that constitute part of this application are used to provide a further understanding of this application and make other features, objects and advantages of this application more apparent. The illustrative embodiment drawings of this application and their descriptions are used to explain this application and do not constitute an improper limitation of this application. In the drawings:

[0020] Figure 1 is a schematic diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of the connection between the annular inflating device and the chuck sealing seat;

[0022] Figure 3 This is a schematic diagram of an iron removal device Figure 1 ;

[0023] Figure 4 This is a schematic diagram of an iron removal device Figure 2 .

[0024] Among them: 1. annular inflator; 2. chuck sealing seat; 3. magnetic rod; 4. first fluid pipeline; 5. sealing gasket; 6. quick clamp; 7. second fluid pipeline; 8. third fluid pipeline; 9. outer shell pipeline. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations 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.

[0027] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0028] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to express a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0029] Additionally, the term "plurality" shall mean two or more.

[0030] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] like Figures 1-4As shown, a deironing method of a dynamic inflatable sealed deironing device, the dynamic inflatable sealed deironing device includes an outer shell pipeline 9, at least one group of deironing devices fixedly arranged in the outer shell pipeline 9, the deironing device includes a first fluid pipeline 4, a second fluid pipeline 7, a third fluid pipeline 8, a magnetic rod 3 slidably arranged in the first fluid pipeline 4, the second fluid pipeline 7 and the third fluid pipeline 8, a first deironing component arranged between the first fluid pipeline 4 and the second fluid pipeline 7, and a second deironing component arranged between the second fluid pipeline 7 and the third fluid pipeline 8, the first deironing component and the second deironing component both include a fixed chuck sealing seat 2, an annular inflatable device 1 fixedly arranged on the chuck sealing seat 2, a charging / discharging pipeline connected to the annular inflatable device 1, a compressed air source connected to the charging / discharging pipeline and an exhaust valve, a medium inlet and a medium outlet are provided on the side wall of the second fluid pipeline 7, a main flow channel outlet is provided on the bottom side wall of the first fluid pipeline 4, the first fluid pipeline 4, the second fluid pipeline 7 and the third fluid pipeline 8 are arranged in sequence from top to bottom;

[0032] The deironing method comprises the following steps:

[0033] S1, inflate the annular inflatable device 1 of the first iron removal component, and at the same time deflate the annular inflatable device 1 of the second iron removal component, control the magnetic rod 3 to move upward, and the first annular inflatable device 1 scrapes off the iron filings on the magnetic rod 3, and the waste liquid is discharged through the gap between the second iron removal component and the magnetic rod 3;

[0034] S2. Inflate the annular inflation device 1 of the second iron removal component, open the medium outlet and the medium inlet, and at the same time introduce the cleaning medium into the second fluid pipeline 7 through the medium inlet to clean the waste slurry adhering to the surface of the annular inflation device 1 of the first iron removal component and the bottom of the cleaning magnetic rod 3, and the cleaning waste liquid is discharged through the medium outlet.

[0035] It should be noted that the waste slurry is prone to coagulation when it adheres to the surface of the annular inflator 1 for a long time, thereby affecting its ability to scrape iron filings off the surface of the magnetic rod 3. Therefore, the annular inflator 1 on both the first and second iron removal components is used to form a sealed cleaning chamber, which isolates the slurry and the waste slurry. Therefore, the cleaning medium can enter from the medium inlet and then be discharged through the medium outlet, thereby achieving the cleaning of the annular inflator 1 in the cleaning chamber and the waste slurry at the bottom of the magnetic rod 3 to prevent coagulation. Moreover, since the waste slurry has a certain recycling value, the cleaning medium and the waste discharge channel are isolated to avoid the cleaning medium contaminating the waste slurry and affecting its recycling.

[0036] At this point, this solution has achieved the entire iron removal work within the outer shell pipe 9, and can automatically clean the annular inflation device 1 and the bottom of the magnetic rod 3, fully realizing automation, which is a significant improvement compared to the existing manual and semi-automatic iron removal.

[0037] The annular inflatable device 1 is an inflatable sealing ring or an inflatable airbag. In this embodiment, an inflatable sealing ring is preferably used. When the annular inflatable device 1 switches between states, such as during normal slurry transportation, the gas inside the annular inflatable device 1 is discharged by opening its charging / discharging pipe. When iron removal is required, the annular inflatable device 1 is inflated by using a compressed air source.

[0038] When the annular inflatable device 1 is inflated, it is in close contact with the magnetic rod 3. When the annular inflatable device 1 is in deflated, there is a gap between it and the magnetic rod 3 for fluid to pass through.

[0039] In the normal slurry conveying state, the cavity of the first fluid pipeline 4 is the slurry main pipeline, and the magnetic material in the slurry will be adsorbed on the surface by the magnetic rod 3; at this time, the annular inflatable device 1 is in an inflated state, and its inner diameter becomes smaller after expansion and it holds the magnetic rod 3 with an appropriate compression force to achieve sealing of the first fluid pipeline 4, isolating the main pipeline from the second fluid pipeline 7 and the third fluid pipeline 8.

[0040] When iron removal is required, the main pipeline inlet is closed, and the annular inflatable device 1 is deflated. Its inner diameter becomes larger and forms a certain gap with the magnetic rod 3. Then the magnetic rod 3 moves downward for a certain distance. Next, the annular inflatable device 1 is inflated, and its inner diameter becomes smaller and holds the magnetic rod 3 tightly. Then the magnetic rod 3 moves upward. At this time, the iron filings and impurities are removed from the magnetic rod 3 under the scraping force of the annular inflatable device 1 and discharged through the second fluid pipeline 7 and the third fluid pipeline 8.

[0041] It should be noted that the action of removing the impurity slurry from the magnetic rod 3 is fully automatic and does not require manual operation. In addition, since the bottom end surface of the magnetic rod 3 is always located in the second fluid pipe 7 and does not enter the first fluid pipe 4, there is no need to remove the impurity slurry from the bottom end surface of the magnetic rod 3. The second fluid pipe 7 is a sealed cavity and can be connected to subsequent waste liquid treatment equipment. Since it is not in direct contact with the outside air, it will not emit pungent and toxic gases into the environment. The removed impurity slurry flows directly to the subsequent links in the waste pipe. The waste liquid does not need to be transported in the middle, which is simple and environmentally friendly and can realize the automatic recovery and treatment of the waste slurry.

[0042] The last step is the cleaning step. At this time, the annular inflation device 1 on the second iron removal device is inflated, so that the second fluid pipeline 7 is completely sealed, and the cleaning liquid is introduced through the medium inlet to realize automatic cleaning of the annular inflation device 1 and the bottom of the magnetic rod 3. After the cleaning is completed, the air is deflated for waste discharge.

[0043] In this embodiment, preferably, the chuck sealing seat 2 is detachably connected to the first fluid pipeline 4 and the second fluid pipeline 7. Furthermore, the chuck sealing seat 2 is connected to the first fluid pipeline 4 and the second fluid pipeline 7 via a quick clamp 6. In order to improve the sealing effect, a sealing structure is provided between the chuck sealing seat 2 and the quick clamp 6. The sealing structure can preferably adopt a sealing gasket 5. Of course, in addition to these, any sealing structure that can seal two fixed components can be used here.

[0044] Finally, to enhance automation capabilities, a cleaning pipeline is connected to the medium inlet and outlet. A solenoid valve is installed on the cleaning pipeline. The cleaning pipeline at the medium inlet is connected to a cleaning liquid storage source via a pump. The solenoid valve, compressed air source, and drain valve are all controlled by a controller. Manual operation of the solenoid valve, compressed air source, and drain valve by human operators according to process steps is also within the scope of protection of this application.

[0045] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A method for removing iron using a dynamic inflatable sealed iron remover, characterized in that: The dynamic inflatable sealed iron remover includes an outer shell pipeline, at least one group of iron removal devices fixedly arranged in the outer shell pipeline, the iron removal device includes a first fluid pipeline, a second fluid pipeline, a third fluid pipeline, a magnetic rod slidably arranged in the first fluid pipeline, the second fluid pipeline and the third fluid pipeline, a first iron removal component arranged between the first fluid pipeline and the second fluid pipeline, and a second iron removal component arranged between the second fluid pipeline and the third fluid pipeline. The first iron removal component and the second iron removal component both include a fixed chuck sealing seat, an annular inflatable device fixedly arranged on the chuck sealing seat, a charging / discharging pipeline connected to the annular inflatable device, a compressed air source connected to the charging / discharging pipeline, and an exhaust valve. A medium inlet and a medium outlet are provided on the side wall of the second fluid pipeline. The first fluid pipeline, the second fluid pipeline and the third fluid pipeline are arranged in sequence from top to bottom. The deironing method comprises the following steps: S1. Inflate the annular inflatable device of the first iron removal assembly and deflate the annular inflatable device of the second iron removal assembly to control the upward movement of the magnetic rod. The first annular inflatable device scrapes off the iron filings on the magnetic rod, and the waste liquid is discharged through the gap between the second iron removal assembly and the magnetic rod; S2. Inflate the annular inflation device of the second iron removal component, open the medium outlet and the medium inlet, and at the same time introduce the cleaning medium into the second fluid pipeline through the medium inlet to clean the iron filings adhering to the surface of the annular inflation device of the first iron removal component and the waste slurry at the bottom of the cleaning magnetic rod, and the cleaning waste liquid is discharged through the medium outlet.

2. The iron removal method of a dynamic inflatable sealed iron remover according to claim 1, characterized in that: The chuck sealing seat is detachably connected to the first fluid pipeline and the second fluid pipeline.

3. The iron removal method of a dynamic inflatable sealed iron remover according to claim 2, characterized in that: The chuck sealing seat is connected to the first fluid pipeline and the second fluid pipeline through a quick clamp.

4. The iron removal method of a dynamic inflatable sealed iron remover according to claim 3, characterized in that: A sealing structure is provided between the chuck sealing seat and the quick clamp.

5. The method for removing iron using a dynamic inflatable sealed iron remover according to claim 1, wherein: The annular inflatable device is an inflatable sealing ring or an inflatable airbag.

6. The iron removal method of a dynamic inflatable sealed iron remover according to claim 1, characterized in that: The medium inlet and the medium outlet are connected with a cleaning pipeline, a solenoid valve is provided on the cleaning pipeline, and the cleaning pipeline at the medium inlet is connected with a cleaning liquid storage source through a pump.

7. A method for removing iron using a dynamic inflatable sealed iron remover according to claim 6, characterized in that: The solenoid valve, the compressed air source and the exhaust valve are all controlled by a controller.

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