CN203704608U - Protective gas heating device for drying lithium ion phosphate material - Google Patents
Protective gas heating device for drying lithium ion phosphate material Download PDFInfo
- Publication number
- CN203704608U CN203704608U CN201420097326.6U CN201420097326U CN203704608U CN 203704608 U CN203704608 U CN 203704608U CN 201420097326 U CN201420097326 U CN 201420097326U CN 203704608 U CN203704608 U CN 203704608U
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- CN
- China
- Prior art keywords
- protective gas
- heat exchanger
- lithium ion
- drying machine
- phosphate material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a protective gas heating device for drying lithium ion phosphate material. The protective gas heating device comprises a protective gas storage tank, a single-cone dryer and a conduction oil heater; the protective gas storage tank and the single-cone dryer are connected through a gas supply pipeline, and the gas supply pipeline is provided with a flow rate regulating valve and a plate-frame heat exchanger; a heating jacket coil pipe capable of heating the lithium ion phosphate material is mounted in the single-cone dryer, and the heating jacket coil pipe, the conduction oil heater and the plate-frame heat exchanger are connected. The protective gas heating device for drying the lithium ion phosphate material is capable of greatly improving the drying ability of the single-cone dryer and shortening the lithium ion phosphate material drying time.
Description
Technical field
The utility model relates to a kind of for the dry protective gas heater of LiFePO 4 material.
Background technology
At present, LiFePO
4before 10 years, just there is report as anode material of lithium battery.Because the electrical conductivity of this material is low, once cause and study widely and discuss.By LiFePO
4outer cladding one deck carbon just can solve the problem of electrical conductivity, now LiFePO
4commercialization of battery, this material is compared and is had a lot of advantages with cobalt compound, as environmental protection, safety etc.But well-known, lithium ion battery all will strictly be controlled moisture, and main cause is that lithium electrode easily reacts with water.
At present, ferric phosphate lithium cell producer requires the LiFePO 4 material moisture content that dispatches from the factory to be controlled at below 400ppm.Thereby make LiFePO 4 material manufacturer very high to product drying equipment requirement.Because the iron in LiFePO 4 material is divalence, so need to pass into protective gas in dry run.But cold protective gas passes in dry material; the steam being evaporated in drying machine, because meeting the low protective gas of temperature, is condensed into after liquid water at dry cover inwall, splashes in LiFePO 4 material; thereby affect drying effect, extended drying time.
Utility model content
The utility model, in order to solve the above-mentioned deficiency of prior art, has proposed a kind of for the dry protective gas heater of LiFePO 4 material.
In order to solve the problems of the technologies described above, the utility model by the following technical solutions: a kind of for the dry protective gas heater of LiFePO 4 material, comprise protective gas holding vessel, single cone drying machine and hotline heater; Being connected by supply air line with single cone drying machine of described protective gas holding vessel, is also provided with flow control valve and sheet frame heat exchanger on described supply air line, described single cone drying machine is provided with exhaust outlet; The inside of described single cone drying machine has heating jacket coil pipe that can heated phosphoric iron lithium material, described heating jacket coil pipe one end is connected in the oil-out of described sheet frame heat exchanger, the other end is connected in the fuel feed hole of described hotline heater, and the oil outlet of described hotline heater is connected in the oil-in of described sheet frame heat exchanger.
Further, described protective gas holding vessel is nitrogen storage tank.
Compared with prior art; the New Heating that the utility model adopts; not only can heat protective gas in advance; make the inwall of single cone drying machine can not produce the liquid water of condensation; and the deep fat of hotline heater can also heat the LiFePO 4 material in single cone drying machine; greatly improve the drying capacity of single cone drying machine, shortened LiFePO 4 material drying time, can effectively LiFePO 4 material be dried to below 400ppm.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Detailed description of the invention
Below in conjunction with drawings and Examples, utility model is described in detail.
As shown in Figure 1, the utility model proposes for the dry protective gas heater of LiFePO 4 material, comprise protective gas holding vessel 1, single cone drying machine 4 and hotline heater 5, protective gas holding vessel 1 is nitrogen storage tank.
Being connected by supply air line with single cone drying machine 4 of protective gas holding vessel 1, is also provided with flow control valve 2 and sheet frame heat exchanger 3 on supply air line, single cone drying machine 4 is provided with exhaust outlet; The inside of single cone drying machine 4 has heating jacket coil pipe that can heated phosphoric iron lithium material, heating jacket coil pipe one end is connected in the oil-out of sheet frame heat exchanger 3, the other end is connected in the fuel feed hole of hotline heater 5, and the oil outlet of hotline heater 5 is connected in the oil-in of sheet frame heat exchanger 3, sheet frame heat exchanger 3, hotline heater 5 and heating jacket coil pipe are all to use oil pipe to be connected.
When the utility model specifically uses, LiFePO 4 material dry need is sent in single cone drying machine 4 by charging system, built top cover.After liquid nitrogen gasifies by decompress(ion) and gasification installation from protective gas holding vessel 1; regulate air-flow size by flow control valve 2; nitrogen is in supply air line enters sheet frame heat exchanger 3; now hotline heater 5 is sent the heat-conducting oil heating in oil pipe; nitrogen just receives the part heat of conduction oil by sheet frame heat exchanger 3; make the temperature of nitrogen be elevated to 80-100 degree left and right; continue again to enter single cone drying machine 4 by supply air line; drying material is protected, after entering, slowly from exhaust outlet, steam is taken out of.
Wherein, conduction oil from hotline heater 5 out, entering sheet frame heat exchanger 3 by pipeline heats nitrogen, again from heat exchanger out, enter the heating jacket coil pipe of single cone drying machine 4 from single cone drying machine 4 bottoms by oil pipe, material is carried out to heat drying, afterwards from the outlet of heating jacket coil pipe out, get back in hotline heater so cycle operation by oil pipe.
Above-described embodiment has only been expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the utility model patent and protection domain should be as the criterion with appended claims.
Claims (2)
1. for the dry protective gas heater of LiFePO 4 material, it is characterized in that: comprise protective gas holding vessel (1), single cone drying machine (4) and hotline heater (5); Being connected by supply air line with single cone drying machine (4) of described protective gas holding vessel (1), is also provided with flow control valve (2) and sheet frame heat exchanger (3) on described supply air line, described single cone drying machine (4) is provided with exhaust outlet; The inside of described single cone drying machine (4) has heating jacket coil pipe that can heated phosphoric iron lithium material, described heating jacket coil pipe one end is connected in the oil-out of described sheet frame heat exchanger (3), the other end is connected in the fuel feed hole of described hotline heater (5), and the oil outlet of described hotline heater (5) is connected in the oil-in of described sheet frame heat exchanger (3).
2. as claimed in claim 1 for the dry protective gas heater of LiFePO 4 material, it is characterized in that: described protective gas holding vessel (1) is nitrogen storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420097326.6U CN203704608U (en) | 2014-03-05 | 2014-03-05 | Protective gas heating device for drying lithium ion phosphate material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420097326.6U CN203704608U (en) | 2014-03-05 | 2014-03-05 | Protective gas heating device for drying lithium ion phosphate material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203704608U true CN203704608U (en) | 2014-07-09 |
Family
ID=51055032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420097326.6U Expired - Fee Related CN203704608U (en) | 2014-03-05 | 2014-03-05 | Protective gas heating device for drying lithium ion phosphate material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203704608U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833623A (en) * | 2021-01-08 | 2021-05-25 | 湖南新威凌新材料有限公司 | Rapid cooling method for vacuum drying equipment |
-
2014
- 2014-03-05 CN CN201420097326.6U patent/CN203704608U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833623A (en) * | 2021-01-08 | 2021-05-25 | 湖南新威凌新材料有限公司 | Rapid cooling method for vacuum drying equipment |
| CN112833623B (en) * | 2021-01-08 | 2022-07-22 | 湖南新威凌新材料有限公司 | Rapid cooling method for vacuum drying equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20150305 |
|
| EXPY | Termination of patent right or utility model |