Device for removing metal magnetic substances in slurry

Abstract

The utility model provides a device for removing metal magnetic substances in slurry, which is characterized in that a pump body is connected with an impurity filter, the pump body is positioned on one side of the impurity filter and conveys the slurry to the impurity filter, the impurity filter is used for filtering impurities in the slurry, and an iron removal filter and the impurity filter are arranged side by side. The deironing filter is connected with the impurity filter through a pipeline and provided with a containing space, the magnetic bar is arranged in the containing space and used for adsorbing metal magnetic substances in slurry, and the pump body can provide power for slurry conveying, so that the slurry is smoothly conveyed in the impurity filter and the deironing filter, the risk of material blocking is avoided, and the service life of the deironing filter is prolonged. The problem that an existing iron removal device is difficult to convey slurry with high viscosity and poor fluidity is solved, the magnetic bar can effectively remove metal magnetic substances in the slurry, the magnetic bar is convenient to clean, and the production efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery slurry technical field especially, relates to a kind of removal device of metal magnetic substance in slurry.

BACKGROUND

[0002] In the production process of lithium battery slurry, metal magnetic impurities will generally be mixed into the battery slurry. When the battery is charged, the metal magnetic impurities will oxidize from the positive electrode and then reduce from the negative electrode when the voltage reaches the oxidation-reduction potential of these metal magnetic impurities. When the accumulation of metal elements on the negative electrode reaches a certain level, the deposited metal magnetic material edges and corners will pierce the lithium battery separator, causing a short circuit and posing a safety hazard. Therefore, it is necessary to remove metal magnetic impurities from the positive and negative electrode slurry of lithium battery.

[0003] The production of battery slurry is often carried out by multiple mixers or dispersers. Therefore, the final product slurry may differ due to production equipment or material batch and model issues. As a result, the iron removal device requires high consistency in slurry viscosity. When the slurry production viscosity is high, the flow rate is slow and the transmission is difficult through the existing iron removal device, which affects the slurry transfer sequence and production time limit, and also affects the subsequent production work. In addition, there is a risk of material jamming for high-viscosity slurry, which makes cleaning difficult and affects production efficiency.

[0004] Therefore, it is necessary to provide a new removal device for metal magnetic substance in slurry to overcome the above-mentioned defects.

UTILITARY MODEL CONTENT

[0005] The utility model aims to provide a kind of removal device for metal magnetic substance in slurry to solve the above technical problems.

[0006] To achieve the above-mentioned purpose, the utility model provides a kind of removal device for metal magnetic substance in slurry, including pump body, impurity filter and iron removal filter;The pump body is connected to the impurity filter, and the pump body is located on one side of the impurity filter and transmits slurry to the impurity filter, the impurity filter is used to filter out impurities in slurry, and the iron removal filter is arranged side by side with the impurity filter, and the iron removal filter is connected to the impurity filter by pipeline;The iron removal filter has a receiving space, and a magnetic bar is arranged in the receiving space, and the magnetic bar is used to adsorb metal magnetic substance in slurry.

[0007] In a preferred embodiment, the iron removal filter includes a filter body and a cap, the filter body has the receiving space, and one end of the filter body is open, and the cap is arranged at one end of the filter body opening.

[0008] In a preferred embodiment, the cap is detachably mounted on the filter body by buckling, the cap is connected with the magnetic bar, and the magnetic bar is inserted into the receiving space of the filter body when the cap is mounted on the filter body.

[0009] In a preferred embodiment, the number of the iron-removing filters is eight, four iron-removing filters are connected in series to form a group, and two groups of the iron-removing filters are connected in parallel.

[0010] In a preferred embodiment, the pump body is a pneumatic diaphragm pump.

[0011] In a preferred embodiment, the number of the impurity filters is two, and the filtering accuracy of the impurity filters is 100 mesh.

[0012] In a preferred embodiment, two magnetic bars are arranged in the iron-removing filter, and the magnetic field strength of each magnetic bar is greater than or equal to 12000 Gauss.

[0013] In a preferred embodiment, a support assembly is further included, the support assembly comprises a support plate and a vertical plate arranged on the support plate, the pump body, the impurity filter and the iron-removing filter are arranged on the support plate, the bottom surface of the support plate is provided with a roller, and the end of the vertical plate away from the support plate is provided with a handle frame.

[0014] Compared with the prior art, the slurry metal magnetic substance removal device provided by the present application has the following advantages: the pump body is connected with the impurity filter, the pump body is located on one side of the impurity filter and transmits the slurry to the impurity filter, the impurity filter is used for filtering out impurities in the slurry, the iron-removing filter is arranged side by side with the impurity filter, the iron-removing filter is connected with the impurity filter through a pipeline, the iron-removing filter has a receiving space, a magnetic bar is arranged in the receiving space, the magnetic bar is used for adsorbing metal magnetic substances in the slurry, the pump body can provide power for slurry transmission, so that the slurry can be smoothly transmitted in the impurity filter and the iron-removing filter, and the risk of material blockage is avoided, the existing iron-removing device has the problem of difficult transmission of slurry with high viscosity and poor flowability, the magnetic bar can effectively remove metal magnetic substances in the slurry, the magnetic bar is easy to clean, and the production efficiency can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0016] Figure 1The utility model provides a structure diagram of the removal device of metal magnetic substance in slurry.

[0017] Figure 2 The utility model provides a structure diagram of the cap and the magnetic bar in the removal device of metal magnetic substance in slurry.

CONCRETE EMBODIMENT

[0018] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Apparently, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the utility model.

[0019] Please refer to Figure 1 , which is a structure diagram of the removal device 100 of metal magnetic substance in slurry provided by the utility model. The removal device 100 of metal magnetic substance in slurry provided by the utility model is applied to lithium battery slurry production and other slurry that needs to remove metal magnetic substance, which can effectively reduce the metal magnetic substance of the slurry, reduce the puncture of the diaphragm by metal foreign matter in the charge and discharge cycle process, reduce the occurrence of short circuit, improve the safety and reliability of lithium ion battery, solve the problem of difficult transmission of slurry with high viscosity and poor flowability by the existing iron removal device, avoid the risk of material blocking, easy to clean, improve the production efficiency.

[0020] Please refer to Figure 2 , the removal device 100 of metal magnetic substance in slurry includes a pump body 10, an impurity filter 20 and an iron removal filter 30. The pump body 10 is connected with the impurity filter 20, the pump body 10 is located on one side of the impurity filter 20, and the pump body 10 transmits the slurry to the impurity filter 20. The impurity filter 20 is used for filtering out impurities in the slurry. The iron removal filter 30 is arranged side by side with the impurity filter 20, and the iron removal filter 30 is connected with the impurity filter 20 through a pipeline 101. The iron removal filter 30 has a receiving space, and a magnetic bar 40 is arranged in the receiving space. The magnetic bar 40 is used for adsorbing metal magnetic substance in the slurry.

[0021] The pump body 10 can transmit the slurry to the impurity filter 20, and then to the iron removal filter 30. The pump body 10 can provide power for the transmission of the slurry, so that the slurry can be smoothly transmitted in the impurity filter and the iron removal filter 30, avoiding the risk of material blockage. The pump body 10 is a pneumatic diaphragm pump, which uses compressed air as a power source, is suitable for fluid transmission with medium-high viscosity, and has small volume and light weight, facilitating movement.

[0022] The impurity filter 20 has a filtering function, and can filter out impurities with a larger volume in the slurry to achieve preliminary screening of the slurry. Specifically, the number of impurity filters is two, and the filtering accuracy of the impurity filter is 100 meshes, that is, the impurity filter can filter out particulate impurities with a diameter greater than or equal to 100 meshes. The two impurity filters 20 are connected by a pipeline.

[0023] The iron removal filter 30 is connected to the impurity filter 20 through a pipeline 101. Specifically, the iron removal filter 30 has a receiving space, and a magnetic rod 40 is arranged in the receiving space 30. The magnetic rod 40 is used to adsorb metal magnetic substances in the slurry. That is, when the slurry is transmitted to the iron removal filter 30, the magnetic rod 40 in the iron removal filter 30 can adsorb the metal magnetic substances in the slurry to the surface of the magnetic rod 40, thereby removing the metal magnetic substances in the slurry. The metal magnetic substances in the slurry can be iron, or cobalt, nickel, and other metals, as well as their alloys.

[0024] Further, the iron removal filter 30 includes a filter body 31 and a cap 32. The filter body 31 has the receiving space and one end of the filter body 31 is open. The cap 32 is arranged at the open end of the filter body 31. The filter body 31 is specifically cylindrical, and the cap 32 is circular.

[0025] The cap 32 is detachably mounted on the filter body 31 by a buckle 321. The cap 32 is connected to the magnetic rod 40, and when the cap 32 is mounted on the filter body 31, the magnetic rod 40 is inserted into the receiving space of the filter body 31. Specifically, the cap 32 can be connected to the filter body 31 in a concave-convex matching manner, that is, the buckle 321 can be convex or concave. The iron removal filter 30 can be manually opened or closed through the buckle 321. The removal of metal magnetic substances in the slurry and the transmission of the slurry are completed through the iron removal filter 30. The metal magnetic substances on the magnetic rod 40 can be removed and wiped and cleaned periodically. That is, after manually pulling out the cap 32 to wipe and clean the magnetic rod 40, the magnetic rod 40 is inserted into the receiving space of the filter body 31, and the cap 32 is mounted on the filter body 31. The cleaning is convenient, and the production efficiency can be improved.

[0026] In the embodiment, the number of the iron removal filters 30 is eight, four of which are connected in series to form a group, and two groups of the iron removal filters 30 are connected in parallel. The multiple iron removal filters can adsorb and treat the slurry multiple times, thereby effectively removing the metal magnetic substances in the slurry. The lithium ion battery after iron removal can effectively reduce the piercing of the separator by the metal foreign matters in the process of charging and discharging, reduce the occurrence of short circuit, and improve the safety and reliability of the lithium ion battery. Two magnetic rods 40 are arranged in the iron removal filter 30, and the two magnetic rods are connected. The magnetic field strength of each magnetic rod 40 is greater than or equal to 12000 Gauss. The magnetic field strength of the magnetic rod is strong, and the adsorption capacity is strong. The material of the iron removal filter is stainless steel, which has strong structural stability and is not easy to be corroded. Specifically, the iron removal filter 30 is also connected with a discharge pipe for guiding the slurry out.

[0027] The removal device 100 for the metal magnetic substances in the slurry also comprises a supporting assembly 50. The supporting assembly 50 comprises a supporting plate 51 and a vertical plate 52 arranged on the supporting plate 51. The pump body 10, the impurity filter 20 and the iron removal filter 30 are arranged on the supporting plate 51. The bottom surface of the supporting plate 51 is provided with a roller 53. The vertical plate 52 is provided with a handle frame 54 at the end away from the supporting plate 51. That is, the supporting assembly 50 has a trolley structure, so that the removal device is portable and convenient to use.

[0028] In summary, the removal device 100 for the metal magnetic substances in the slurry provided by the utility model comprises a pump body 10 connected with an impurity filter 20. The pump body 10 is located on one side of the impurity filter 20 and transmits the slurry to the impurity filter 20. The impurity filter 20 is used for filtering the impurities in the slurry. The iron removal filter 30 is arranged side by side with the impurity filter 20. The iron removal filter 30 is connected with the impurity filter 20 through a pipeline 101. The iron removal filter 30 has a receiving space, and a magnetic rod 40 is arranged in the receiving space. The magnetic rod 40 is used for adsorbing the metal magnetic substances in the slurry. The pump body 10 can provide power for the transmission of the slurry, so that the slurry can be smoothly transmitted in the impurity filter and the iron removal filter 30, and the risk of material blockage is avoided. The problem that the existing iron removal device has difficulty in transmitting the slurry with high viscosity and poor flowability is solved. The magnetic rod 40 can effectively remove the metal magnetic substances in the slurry. The magnetic rod is convenient to clean, and the production efficiency can be improved.

[0029] The above description is only an embodiment of the utility model, and does not limit the patent range of the utility model. Any equivalent structure or equivalent process conversion in the utility model specification and the attached drawings, or direct or indirect application in other related technical fields is also included in the patent protection range of the utility model.

Claims

1. A device for removing metallic magnetic substances from a slurry, characterized in that, The application relates to a slurry purifying device, which comprises a pump body, an impurity filter and an iron removing filter; the pump body is connected with the impurity filter, the pump body is located on one side of the impurity filter and transmits slurry to the impurity filter, the impurity filter is used for filtering impurities in the slurry, the iron removing filter is arranged in parallel with the impurity filter, and the iron removing filter is connected with the impurity filter through a pipeline; the iron removing filter has a containing space, and a magnetic bar is arranged in the containing space and used for adsorbing metal magnetic substances in the slurry.

2. The slurry metal magnetic material removal apparatus of claim 1, wherein The iron removing filter comprises a filter body and a cap, the filter body has the containing space and is open at one end, and the cap is arranged at the open end of the filter body.

3. The slurry metal magnetic material removal apparatus of claim 2, wherein the magnetic field generator is a permanent magnet. The cap is detachably mounted on the filter body through buckling, the cap is connected with the magnetic bar, and the magnetic bar is inserted into the containing space of the filter body when the cap is mounted on the filter body.

4. The slurry metal magnetic material removal apparatus of claim 1, wherein the magnetic field generator is a permanent magnet. The number of the iron removing filters is eight, four iron removing filters are connected in series to form a group, and the two groups of iron removing filters are connected in parallel.

5. The slurry metal magnetic material removal apparatus of claim 1, wherein the magnetic field generator is a permanent magnet. The pump body is a pneumatic diaphragm pump.

6. The slurry metal magnetic material removal apparatus of claim 1, wherein The number of the impurity filters is two, and the filtering precision of the impurity filters is 100 meshes.

7. The slurry metal magnetic material removal apparatus of claim 1, wherein the magnetic field generator is a permanent magnet. Two magnetic bars are arranged in the iron removing filter, and the magnetic field intensity of each magnetic bar is greater than or equal to 12000 Gauss.

8. The slurry metal magnetic material removal apparatus of any one of claims 1 to 7, wherein The device further comprises a supporting assembly, the supporting assembly comprises a supporting plate and a vertical plate arranged on the supporting plate, the pump body, the impurity filter and the iron removing filter are arranged on the supporting plate, the bottom surface of the supporting plate is provided with a roller, and the vertical plate is provided with a handle frame at the end far from the supporting plate.

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