CN210242344U - Continuous sintering device for oxide solid electrolyte powder - Google Patents
Continuous sintering device for oxide solid electrolyte powder Download PDFInfo
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- CN210242344U CN210242344U CN201921056808.6U CN201921056808U CN210242344U CN 210242344 U CN210242344 U CN 210242344U CN 201921056808 U CN201921056808 U CN 201921056808U CN 210242344 U CN210242344 U CN 210242344U
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Abstract
The utility model discloses a continuous sintering device of oxide solid electrolyte powder, which comprises a furnace body, a gas distribution preheating cavity, a sintering cavity and a cooling cavity which are communicated in sequence; a plurality of communicated separation cavities are formed in the gas distribution preheating cavity, wherein the top of the separation cavity positioned at odd number positions is provided with an exhaust channel, and the bottom of the separation cavity positioned at even number positions is provided with an air inlet channel; the device comprises a gas distribution preheating cavity, a sintering cavity and a cooling cavity, and is characterized by further comprising a transmission mechanism and a sagger fixed on the transmission mechanism, wherein the sagger is used for containing and burning solid electrolyte powder, and the transmission mechanism drives the sagger to sequentially pass through the gas distribution preheating cavity, the sintering cavity and the cooling cavity. The utility model discloses a solid electrolyte's continuous sintering device can improve solid electrolyte powder sintering efficiency and performance uniformity effectively, can the solid electrolyte powder that significantly reduces volatilize of compositions such as lithium, sodium, guaranteed the uniformity of the electrochemical properties of the solid electrolyte powder after the sintering.
Description
Technical Field
The utility model relates to a continuous sintering device technical field relates to a continuous sintering device of oxide solid electrolyte powder body particularly.
Background
At present, equipment for sintering solid electrolyte materials is generally a high-temperature gas shuttle kiln or a common electric furnace, the lining material of the equipment is generally alumina hollow ball refractory bricks, the outer layer of the equipment is heavy refractory bricks, the heat preservation performance is good, but the equipment is not beneficial to heat dissipation, and the sintering time is too long; in order to remove waste gases such as organic binders, water vapor and the like in the green body of the solid electrolyte tube, the two steps of glue removal and sintering are generally carried out, so that the sintering time is further increased, and the sintering efficiency is low; meanwhile, because the solid electrolyte material can generate Na, Li and other atmosphere volatilization in the sintering process, overlong sintering time is not only unfavorable for production efficiency, but also unfavorable for the stability of the components of the solid electrolyte material, and further influences the consistency of electrochemical properties.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a continuous sintering device of oxide solid electrolyte powder body to the sintering efficiency who solves the continuous sintering device existence of current solid electrolyte is low, solid electrolyte material can produce the volatile defect of atmosphere such as lithium in sintering process.
Therefore, the utility model provides a continuous sintering device of oxide solid electrolyte powder, which comprises a furnace body, a sintering chamber and a cooling chamber, wherein the furnace body comprises an air distribution preheating chamber, the sintering chamber and the cooling chamber which are communicated in sequence; a plurality of communicated separation cavities are formed in the gas distribution preheating cavity, wherein the top of the separation cavity positioned at odd number positions is provided with an exhaust channel, and the bottom of the separation cavity positioned at even number positions is provided with an air inlet channel; the device comprises a gas distribution preheating cavity, a sintering cavity and a cooling cavity, and is characterized by further comprising a transmission mechanism and a sagger fixed on the transmission mechanism, wherein the sagger is used for containing and burning solid electrolyte powder, and the transmission mechanism drives the sagger to sequentially pass through the gas distribution preheating cavity, the sintering cavity and the cooling cavity.
Preferably, the top and the bottom of the separation cavity are respectively provided with a heater for preheating, the preheating temperature in the separation cavities is sequentially increased, and the temperature difference between two adjacent separation cavities is greater than 100 ℃.
Preferably, a high-heat-storage corrosion-resistant refractory layer is arranged on the inner wall of the sintering cavity, and a low-heat-conduction heat-insulation layer is arranged on the outer wall of the sintering cavity.
Preferably, the top and the bottom of the cooling cavity are respectively provided with a pin cooler for cooling.
Preferably, the transmission mechanism comprises a driving shaft, a driven shaft and a motor, the motor drives the driving shaft to rotate, and the driving shaft drives the driven shaft to rotate.
Preferably, the driven shaft is rotatably arranged in the furnace body, the sagger is placed on the driven shaft, and the sagger sequentially passes through the gas distribution preheating cavity, the sintering cavity and the cooling cavity under the driving of the driven shaft. Preferably, the sagger is of a cubic structure and made of inorganic nonmetal refractory materials, and the inner wall of the sagger is provided with a high-purity oxide coating; a sealing cover is placed at the opening of the sagger, and the material of the sealing cover is the same as that of the sagger.
Compared with the prior art, the utility model discloses an advantage is with positive effect: the utility model provides a continuous sintering device of oxide solid electrolyte powder, which comprises a furnace body, a sintering chamber and a cooling chamber, wherein the furnace body comprises a gas distribution preheating chamber, a sintering chamber and a cooling chamber which are communicated in sequence; a plurality of communicated separation cavities are formed in the gas distribution preheating cavity, wherein the top of the separation cavity positioned at odd number positions is provided with an exhaust channel, and the bottom of the separation cavity positioned at even number positions is provided with an air inlet channel; the device comprises a gas distribution preheating cavity, a sintering cavity and a cooling cavity, and is characterized by further comprising a transmission mechanism and a sagger fixed on the transmission mechanism, wherein the sagger is used for containing and burning solid electrolyte powder, and the transmission mechanism drives the sagger to sequentially pass through the gas distribution preheating cavity, the sintering cavity and the cooling cavity. The utility model discloses a continuous sintering device of oxide solid electrolyte powder body can improve solid electrolyte powder body sintering efficiency and performance uniformity effectively, can the significantly reduced volatilization of components such as lithium, sodium in the solid electrolyte powder body, guaranteed the uniformity of the electrochemical properties of the solid electrolyte powder body after the sintering.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when read in conjunction with the accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of an embodiment of a gas distribution preheating chamber of the continuous sintering apparatus for oxide solid electrolyte powder according to the present invention;
FIG. 2 is a schematic structural view showing an example of a cooling chamber of the continuous sintering apparatus for an oxide solid electrolyte powder according to the present invention;
FIG. 3 is a schematic structural view of an embodiment of the continuous sintering apparatus for an oxide solid electrolyte powder according to the present invention;
FIG. 4 is a schematic structural view showing an example of a transmission mechanism of the continuous sintering apparatus for an oxide solid electrolyte powder according to the present invention;
fig. 5 is a schematic structural view of an example of a sagger of the continuous sintering apparatus for oxide solid electrolyte powder according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. are based on the directions or positional relationships shown in fig. 1 to 5, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 5, the continuous sintering apparatus for oxide solid electrolyte powder of the present embodiment includes a furnace body including a gas distribution preheating chamber 10, a sintering chamber 20 and a cooling chamber 30, which are communicated in sequence; a plurality of communicated separation cavities 11 are formed in the gas distribution preheating cavity 10, wherein the top of the separation cavity 11 positioned at odd number is provided with an exhaust passage 12, and the bottom of the separation cavity 11 positioned at even number is provided with an air inlet passage 13; the device further comprises a transmission mechanism and a sagger 50 fixed on the transmission mechanism, wherein the sagger 50 is used for containing and burning solid electrolyte powder, and the transmission mechanism drives the sagger 50 to sequentially pass through the gas distribution preheating cavity 10, the sintering cavity 20 and the cooling cavity 30.
The continuous sintering device for the oxide solid electrolyte powder can effectively improve the sintering efficiency and the performance consistency of the solid electrolyte powder, can greatly reduce the volatilization of lithium in the solid electrolyte powder, and ensures the consistency of the electrochemical performance of the sintered solid electrolyte powder. The continuous sintering device of the embodiment is suitable for various oxide type solid electrolyte materials, and can realize the continuous production of ton-grade solid electrolyte powder materials. A plurality of communicated separation cavities 11 are formed inside the gas distribution preheating cavity 10, wherein the top of the separation cavity 11 positioned at odd number is provided with an exhaust channel 12, the bottom of the separation cavity 11 positioned at even number is provided with an air inlet channel 13, and the exhaust direction is shown by an arrow of an earthed arrow 1. The solid electrolyte powder is contained in the sagger 50, and the transmission mechanism drives the sagger 50 to sequentially pass through the gas distribution preheating cavity 10, the sintering cavity 20 and the cooling cavity 30, so that the solid electrolyte powder is sequentially subjected to gas distribution preheating, sintering and cooling treatment, and finally the sintered solid electrolyte is obtained.
The heaters 14 are respectively installed at the top and the bottom of the separation cavities 11 for preheating, the preheating temperature in the separation cavities 11 is sequentially increased, and the temperature difference between two adjacent separation cavities 11 is more than 100 ℃; thereby, the temperature transfer can be greatly accelerated and uniform heating of the solid electrolyte powder can be ensured.
The inner wall of the sintering chamber 20 is provided with a high heat storage and corrosion resistant refractory layer, and the outer wall is provided with a low heat conduction insulating layer.
The top and the bottom of cooling chamber 30 are installed needle type cooler 31 respectively and are cooled off, and the needle type cooler is indirect cooling system, and the level arranges in the top and the bottom of cooling chamber 30, and the crisscross distribution of air inlet of needle type cooler 31, and the air input is adjustable, guarantees that cross section and length direction's cooling rate is unanimous and controllable.
The transmission mechanism comprises a driving shaft 41, a driven shaft 42 and a motor, the motor drives the driving shaft 41 to rotate, and the driving shaft 41 drives the driven shaft 42 to rotate. The transmission mechanism is arranged by attaching to one side of the furnace body, the driving shaft 41 is parallel to the furnace body, the driven shaft 42 penetrates through the interior of the furnace body, the driving shaft 41 is driven by the variable frequency motor to drive the large gear 43, the large gear 43 drives the driven pinion 44, and the pinion 44 drives the driven shaft 42 to rotate. The sagger 50 is placed on the driven shaft 42 and is transferred into the furnace body through the transmission mechanism, and passes through the gas distribution preheating cavity 10, the sintering cavity 20 and the cooling cavity 30 in sequence.
The driven shaft 42 is rotatably arranged in the furnace body, the sagger 50 is arranged on the driven shaft 42, and the sagger sequentially passes through the gas distribution preheating cavity 10, the sintering cavity 20 and the cooling cavity 30 under the rotation of the driven shaft 42. A plurality of rotatable driven shafts 42 are sequentially arranged in parallel in the gas distribution preheating cavity 10, the sintering cavity 20 and the cooling cavity 30, the sagger 50 is placed on the driven shafts 42, and the sagger 50 is driven by the driven shafts 42 to move from left to right in the rotating process and sequentially passes through the gas distribution preheating cavity 10, the sintering cavity 20 and the cooling cavity 30.
The sagger 50 is of a cubic structure and made of inorganic nonmetal refractory materials, and is good in corrosion resistance and thermal shock resistance. The inner wall of the sagger 50 is provided with a high purity oxide coating to ensure that the solid electrolyte powder is not contaminated by volatiles from the sagger 50 during sintering. A sealing cover 51 is arranged at the opening of the sagger 50, and the material of the sealing cover 51 is the same as that of the sagger 50; the sealing cover 51 is arranged at the opening of the sagger 50, so that the sintering environment in the sagger 50 is relatively sealed, the volatilization of lithium in the solid electrolyte powder is controlled in a small space, and the volatilization of a lithium source can be effectively prevented.
In this embodiment, the top and the bottom of the distribution preheating chamber 10, the sintering chamber 20 and the cooling chamber 30 are respectively provided with a temperature measuring element 60 for respectively detecting the temperature in the distribution preheating chamber 10, the sintering chamber 20 and the cooling chamber 30.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the following embodiments, it will be apparent to those skilled in the art that the present invention may be modified or equivalents may be substituted for some of the features of the embodiments described below; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.
Claims (7)
1. A continuous sintering apparatus for an oxide solid electrolyte powder, characterized in that,
comprises a furnace body which is formed by communicating a gas distribution preheating cavity, a sintering cavity and a cooling cavity in sequence;
a plurality of communicated separation cavities are formed in the gas distribution preheating cavity, wherein the top of the separation cavity positioned at odd number positions is provided with an exhaust channel, and the bottom of the separation cavity positioned at even number positions is provided with an air inlet channel;
the device comprises a gas distribution preheating cavity, a sintering cavity and a cooling cavity, and is characterized by further comprising a transmission mechanism and a sagger fixed on the transmission mechanism, wherein the sagger is used for containing and burning solid electrolyte powder, and the transmission mechanism drives the sagger to sequentially pass through the gas distribution preheating cavity, the sintering cavity and the cooling cavity.
2. The continuous sintering apparatus for an oxide solid electrolyte powder according to claim 1,
the top and the bottom of the separation cavity are respectively provided with a heater for preheating, the preheating temperature in the separation cavity is sequentially increased, and the temperature difference between two adjacent separation cavities is more than 100 ℃.
3. The continuous sintering apparatus for an oxide solid electrolyte powder according to claim 1,
the inner wall of the sintering cavity is provided with a high-heat-storage corrosion-resistant fire-resistant layer, and the outer wall of the sintering cavity is provided with a low-heat-conduction heat-insulation layer.
4. The continuous sintering apparatus for an oxide solid electrolyte powder according to claim 1,
and needle-type coolers are respectively arranged at the top and the bottom of the cooling cavity for cooling.
5. The continuous sintering apparatus for an oxide solid electrolyte powder according to claim 1,
the transmission mechanism comprises a driving shaft, a driven shaft and a motor, the motor drives the driving shaft to rotate, and the driving shaft drives the driven shaft to rotate.
6. The continuous sintering apparatus for an oxide solid electrolyte powder according to claim 5,
the driven shaft is arranged in the furnace body, the sagger is placed on the driven shaft, and the sagger sequentially passes through the gas distribution preheating cavity, the sintering cavity and the cooling cavity under the driving of the driven shaft.
7. The continuous sintering apparatus for an oxide solid electrolyte powder according to claim 1,
the sagger is of a cubic structure and made of inorganic nonmetal refractory materials, and a high-purity oxide coating is arranged on the inner wall of the sagger;
a sealing cover is placed at the opening of the sagger, and the material of the sealing cover is the same as that of the sagger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921056808.6U CN210242344U (en) | 2019-07-08 | 2019-07-08 | Continuous sintering device for oxide solid electrolyte powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921056808.6U CN210242344U (en) | 2019-07-08 | 2019-07-08 | Continuous sintering device for oxide solid electrolyte powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210242344U true CN210242344U (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921056808.6U Active CN210242344U (en) | 2019-07-08 | 2019-07-08 | Continuous sintering device for oxide solid electrolyte powder |
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| Country | Link |
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| CN (1) | CN210242344U (en) |
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2019
- 2019-07-08 CN CN201921056808.6U patent/CN210242344U/en active Active
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