CN202845201U - Demagnetizing dust collector - Google Patents
Demagnetizing dust collector Download PDFInfo
- Publication number
- CN202845201U CN202845201U CN2012205260849U CN201220526084U CN202845201U CN 202845201 U CN202845201 U CN 202845201U CN 2012205260849 U CN2012205260849 U CN 2012205260849U CN 201220526084 U CN201220526084 U CN 201220526084U CN 202845201 U CN202845201 U CN 202845201U
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- Prior art keywords
- dust collector
- feed bin
- except
- magnetic
- bar magnet
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- Expired - Lifetime
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Abstract
The utility model provides a cyclone dust collector which is simple in structure and is especially used for producing anode materials of lithium batteries. The dust collector has the two functions, namely dust collection and demagnetization. An airflow carrying the anode materials rotates in the dust collector, and the material powder is separated from air by a centrifugal force so as to be collected. The inner wall of the dust collector is provided with a demagnetizing device, ferromagnetic substances in the powder are attached to a magnetic bar so as to realize demagnetization. The dust collector is a novel dust collector integrating the existing dust collector and a demagnetizing device. The dust collector can not only efficiently separate the anode material powder from the carrier gas, but also can remove the ferromagnetic substances out of the material powder. The dust collector has the advantages of high operating efficiency, stability and reliability.
Description
Technical field
The utility model relates to a kind of dust arrester, particularly a kind of dust arrester for anode material for lithium-ion batteries production.
Background technology
At anode material of lithium battery, in the production process such as cobalt acid lithium, LiMn2O4, ternary material, lithium nickel cobalt dioxide etc., because the Ferromagnetic Impurities that the reasons such as raw material introducing and equipment pipe wearing and tearing bring can be mixed in the material.The Ferromagnetic Impurities of trace can cause micro-short circuit at inside battery, thereby reduces the performance of material, makes the self-discharge of battery aggravation, and barrier film is pierced through in serious meeting, even sets off an explosion.Need to remove these Ferromagnetic Impurities for this reason.But because these impurity quality are little, content is low, uses separately the large-scale magnetic machine that removes to be difficult to its removing, has not only reduced production efficiency, and the yield of product also has been subject to certain influence.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of positive electrode powder can the separation with carrier gas, can remove well again simultaneously Ferromagnetic Impurities in the material except the magnetic dust arrester.
For this reason, the technical solution of the utility model is as follows:
A kind of except the magnetic dust arrester, comprise feed bin and be installed in the interior cyclone dust collecting unit of described feed bin, the magnetic device that removes for the Ferromagnetic Impurities of removing separated material is installed in described feed bin bottom.
Described except magnetic device be installed in the described feed bin, the bar magnet of cyclone dust collecting unit bottom; Described bar magnet evenly be provided with aspect the circumference of described feed bin a plurality of.
Each described bar magnet inserts feed bin inside from feed bin is outside, and is fixedly mounted on the feed bin by the flange that is arranged on the feed bin outside, is tightly connected between described flange and the feed bin.In an embodiment of the present utility model, described bar magnet is provided with 6 in feed bin.
Of the present utility model except the magnetic dust arrester compared with prior art, not only have the centrifugation of common cyclone but also have except the magnetic function, can be used for the production pulverizing, classification of anode material for lithium-ion batteries and except the magnetic operation.It is simple in structure, easy to operate, has not only improved production efficiency, has also improved product quality.
Description of drawings
Fig. 1 is the structural representation except the magnetic dust arrester of the present utility model;
Fig. 2 is the top view that is equipped with except the taper bulkhead of magnetic device;
Fig. 3 is the partial structurtes schematic diagram that single bar magnet flange connects.
The specific embodiment
Below in conjunction with accompanying drawing the structure except the magnetic dust arrester of the present utility model is elaborated.
Such as Fig. 1～shown in Figure 3, should comprise feed bin 1, pulse gas tank 2, filter cylinder 3, feed pipe 4, dust arrester, flange 6, bumper jar 7, Starlike valve 8, feed opening 9 and Fan pipeline 10 except the magnetic dust arrester.The described magnetic device that removes is installed on the taper bulkhead of feed bin 1 bottom, and it is inner to insert feed bin from the outside by six roots of sensation bar magnet 5, forming by fixing and install rubber ring seal additional at the flange 6 in the feed bin outside.Because whole fixing with hermetic unit all is arranged on the feed bin outside, guaranteed the smooth of feed bin inner surface, therefore can not make a significant impact swirling eddy, bar magnet can take out by the dismounting flange.
Although in the present embodiment, at the taper bulkhead six roots of sensation bar magnet has been installed, has been appreciated that the quantity of bar magnet can be adjusted according to actual needs.
Should be as follows except the operation principle of magnetic dust arrester:
The air-flow that is loaded with the positive electrode powder enters feed bin 1 inside from feed pipe 4 and rotates, Ferromagnetic Impurities during through bar magnet 5 in the material is adsorbed by bar magnet, all the other materials descend with flow separation under the effect of centrifugal force, discharge feed bins 1 by Starlike valve 8 and feed opening 9 at last.The ultrafine dust that can't separate rises rear by the filter cylinder trap filter by filter cylinder 3 with air-flow.Behind the operation certain hour, flange 6 is disassembled, take out bar magnet 5 and clean out the magnetisable material that adsorbs above, again load onto bar magnet 5 after the cleaning and can continue to use.
Owing to be tightly connected between flange and the feed bin, so guaranteed that to greatest extent the flow rotation motion is not affected by external disturbance in the feed bin.Because Ferromagnetic Impurities is adsorbed by bar magnet in carrier gas, so avoided the positive electrode powder that it is coated shielding, improved except magnetic efficiency.
Claims (5)
1. one kind is removed the magnetic dust arrester, comprises feed bin and is installed in the interior cyclone dust collecting unit of described feed bin, it is characterized in that: the magnetic device that removes for the Ferromagnetic Impurities of removing separated material is installed in described feed bin bottom.
2. according to claim 1 except the magnetic dust arrester, it is characterized in that: described except magnetic device be installed in the described feed bin, the bar magnet of cyclone dust collecting unit bottom.
3. according to claim 2 except the magnetic dust arrester, it is characterized in that: described bar magnet evenly be provided with aspect the circumference of described feed bin a plurality of.
4. according to claim 3 except the magnetic dust arrester, it is characterized in that: each described bar magnet inserts feed bin inside from feed bin is outside, and is fixedly mounted on the feed bin by the flange that is arranged on the feed bin outside, is tightly connected between described flange and the feed bin.
5. according to claim 4 except the magnetic dust arrester, it is characterized in that: described bar magnet is provided with 6 in feed bin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205260849U CN202845201U (en) | 2012-10-15 | 2012-10-15 | Demagnetizing dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205260849U CN202845201U (en) | 2012-10-15 | 2012-10-15 | Demagnetizing dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202845201U true CN202845201U (en) | 2013-04-03 |
Family
ID=47976439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205260849U Expired - Lifetime CN202845201U (en) | 2012-10-15 | 2012-10-15 | Demagnetizing dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202845201U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201421A (en) * | 2014-07-29 | 2014-12-10 | 江西世纪长河新电源有限公司 | Processing method for reducing self-discharge rate of battery core |
| CN113113578A (en) * | 2021-03-10 | 2021-07-13 | 欣旺达电动汽车电池有限公司 | Cathode material, preparation method thereof and lithium ion battery |
-
2012
- 2012-10-15 CN CN2012205260849U patent/CN202845201U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201421A (en) * | 2014-07-29 | 2014-12-10 | 江西世纪长河新电源有限公司 | Processing method for reducing self-discharge rate of battery core |
| CN113113578A (en) * | 2021-03-10 | 2021-07-13 | 欣旺达电动汽车电池有限公司 | Cathode material, preparation method thereof and lithium ion battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300384 in Tianjin Binhai Huayuan Industrial Park (outer ring) 8 Haitai Avenue Patentee after: Tianjin Bamo Technology Co.,Ltd. Address before: 300384 in Tianjin Binhai Huayuan Industrial Park (outer ring) 8 Haitai Avenue Patentee before: TIANJIN B & M SCIENCE AND TECHNOLOGY JOINT-STOCK Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |