CN218723173U

CN218723173U - High-temperature sintering sagger

Info

Publication number: CN218723173U
Application number: CN202222928209.7U
Authority: CN
Inventors: 李冰冰; 屈振昊; 董沛沛; 刘志远; 于建
Original assignee: Ningbo Ronbay Lithium Battery Material Co Ltd
Current assignee: Ningbo Ronbay Lithium Battery Material Co Ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-03-24
Anticipated expiration: 2032-10-31

Abstract

The application discloses a high-temperature sintering sagger, which comprises a sagger body with a sintering cavity; the sagger body comprises an outer wall body and an inner wall body arranged in the outer wall body; the inner wall body is positioned in the center of the sintering cavity, the inner wall body is internally provided with a ventilation cavity, an inlet of the ventilation cavity is positioned on the outer wall body, and a plurality of outlets of the ventilation cavity are dispersedly distributed on the surface of the inner wall body. When using this high temperature sintering casket-like bowl sintering material, operating personnel can let in gas to the chamber of ventilating, and these gases flow and blow to the sintering chamber from the export in chamber of ventilating, can improve the aeration quantity of the inside in sintering chamber, are favorable to the aeration quantity at the different positions in balanced sintering chamber, also can get rid of the residual material of being attached to the casket-like bowl body at sintering operation rear convenient and fast, realize the automatically cleaning, improve the product quality.

Description

High-temperature sintering sagger

Technical Field

The application relates to the technical field of sintering, in particular to a high-temperature sintering sagger.

Background

The sintering process is a vital technology in the industries of construction, new energy and the like, and the sagger serving as a material carrier plays an important role in the sintering process.

The saggar needs to be introduced with a related gas source in the sintering process to ensure the sufficient reaction with materials, the conventional saggar is provided with four walls with larger thickness, the contact between gas and the materials is hindered, the temperature rising speed of the materials is high when the saggar is closer to the edge of the saggar in the sintering process, the temperature rising speed of the materials is low when the saggar is closer to the center of the saggar, the sintering performance of the materials at different positions in the saggar is inconsistent, and the product quality is reduced. The insufficient reaction condition caused by insufficient contact of the materials and the gas source is more obvious in the sintering process of the multilayer sagger. In addition, the inner wall of the sagger after sintering has more residual materials, which is not beneficial to secondary sintering and can also influence the product quality.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high temperature sintering sagger is favorable to gas and the abundant contact of material, also is favorable to getting rid of the residual material that adheres to in the sagger, improves the product quality.

To achieve the above objects, the present application provides a high temperature sintering sagger, comprising a sagger body having a sintering cavity; the sagger body comprises an outer wall body and an inner wall body arranged in the outer wall body; the inner wall body is positioned in the center of the sintering cavity, the inner wall body is internally provided with a ventilation cavity, an inlet of the ventilation cavity is positioned on the outer wall body, and a plurality of outlets of the ventilation cavity are dispersedly distributed on the surface of the inner wall body.

In some embodiments, the exterior wall body comprises a bottom wall and a side wall; any outlet is arranged towards the horizontal direction or the downward direction, and at least part of the outlets are inclined towards the bottom wall.

In some embodiments, the total outlet comprises a plurality of inclined outlets inclined toward the bottom wall, and the spray range of the plurality of inclined outlets covers the entire bottom wall.

In some embodiments, any of the angled exits is angled more than 5 ° and less than 70 ° from horizontal.

In some embodiments, the inlet is provided in the bottom wall.

In some embodiments, the exterior wall body comprises a bottom wall and a side wall; the inner wall body comprises more than two inner wall plates extending from the center of the sintering cavity to the side wall.

In some embodiments, all of the interior wall panels are centrally symmetrically distributed about the center of the sintering chamber.

In some embodiments, both pairs of side wall surfaces of any of the interior wall panels are provided with an outlet.

In some embodiments, the outlet has a bore that gradually decreases from the center to the edge of the sintering chamber.

In some embodiments, the vent cavity comprises a vertical cavity extending along the height direction of the inner wall body and a transverse cavity extending along the thickness direction of the inner wall body; the inner diameter of the vertical cavity is larger than that of the transverse cavity.

Compared with the background art, the high-temperature sintering sagger provided by the application comprises a sagger body; the sagger body comprises a sintering cavity, an outer wall body and an inner wall body; the inner wall body is arranged in the outer wall body and located in the center of the sintering cavity, the inner wall body is internally provided with a ventilation cavity, an inlet of the ventilation cavity is located in the outer wall body, and a plurality of outlets of the ventilation cavity are dispersedly distributed on the surface of the inner wall body.

The high-temperature sintering sagger can be used for sintering materials. In use, an operator may introduce gas into the vent lumen, which flows along the vent lumen and out of the plurality of outlets of the vent lumen. Gas flowing out from the outlet blows to the sintering chamber, can enough improve the aeration volume of the inside in sintering chamber in sintering operation, is favorable to the aeration volume at the different positions in balanced sintering chamber, ensures gaseous and the material fully contacts, also can conveniently get rid of the residual material that adheres to the sagger fast behind sintering operation, realizes the automatically cleaning of sagger body. Therefore, the high-temperature sintering sagger can improve the operation quality of sintering operation and the product quality of related products.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic view of a high temperature sintering sagger according to an embodiment of the present disclosure;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a graph of oxygen distribution in a prior art sagger during a sintering operation;

FIG. 4 is a graph of oxygen distribution during a sintering operation for a high temperature sintering sagger as provided herein;

FIG. 5 is a gas flow distribution diagram for a high temperature sintering sagger in self-cleaning operation as provided herein.

Wherein, 1-outer wall, 11-bottom wall, 12-side wall, 2-inner wall, 21-inner wall, 3-ventilation cavity, 31-vertical cavity, 32-horizontal cavity and 33-inlet.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In order to enable those skilled in the art to better understand the scheme of the present application, the present application will be described in further detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 to 5, fig. 1 is a schematic structural diagram of a high-temperature sintering sagger provided in an embodiment of the present application; FIG. 2 is a top view of FIG. 1; FIG. 3 is a graph of oxygen distribution in a prior art sagger during a sintering operation; FIG. 4 is a graph of oxygen distribution during a sintering operation for a high temperature sintering sagger as provided herein; FIG. 5 is a gas flow distribution diagram for a high temperature sintering sagger in self-cleaning operation as provided herein.

Referring to fig. 1, the present application provides a high-temperature sintering sagger, which includes a sagger body and a ventilation cavity 3 disposed on the sagger body; in the high-temperature sintering sagger, a sagger body is provided with an outer wall body 1, an inner wall body 2 and a sintering cavity, and the sintering cavity is limited by the outer wall body 1 and the inner wall body 2; wherein, interior wall body 2 is located outer wall body 1 and is located the center in sintering chamber, is equipped with in the interior wall body 2 and ventilates chamber 3, and this is ventilated the entry 33 in chamber 3 and is in outer wall body 1, and a plurality of exports of this chamber 3 of ventilating disperse distribution are on the surface of interior wall body 2.

When using this high temperature sintering sagger, operating personnel can let in gas to the chamber of ventilating 3, and gas gets into from the entry 33 of the chamber of ventilating 3, flows and flows from a plurality of exports of the chamber of ventilating 3 along the chamber of ventilating 3, blows to the sintering chamber from the gas of export outflow. Referring to fig. 3 and 4, fig. 3 shows a prior art, in which the internal space of the sagger can be divided into three regions, namely, a multi-oxygen region, a mid-oxygen region (also called a mid-oxygen region) and a region difficult to be contacted by oxygen, and fig. 4 shows the present application, in which the sintering chamber in the sagger body is also divided into three regions, namely, a multi-oxygen region, a mid-oxygen region and a region difficult to be contacted by oxygen. It is thus clear that, compare with prior art, the high temperature sintering sagger that this application provided can make the gas of chamber 3 of ventilating blow to the sintering chamber, can enough improve the aeration rate of the inside in sintering chamber in the sintering operation, especially oxygen is difficult to the aeration rate in contact zone and well oxygen region to the aeration rate in the different positions in balanced sintering chamber, in addition can also realize the automatically cleaning of sagger body after the sintering operation.

Therefore, the high-temperature sintering sagger provided by the application is beneficial to fully contacting gas and materials and conveniently and quickly removing residual materials attached to the sagger, so that the product quality is improved.

The high-temperature sintering sagger provided by the present application is further described with reference to the accompanying drawings and embodiments.

Referring to fig. 1, 2 and 5, in some embodiments, the exterior wall 1 of the high temperature sintering sagger may include a bottom wall 11 and a side wall 12; obviously, the bottom wall 11 is located at the bottom of the sagger body, the side wall 12 is located at the side of the sagger body, and both the bottom wall 11 and the side wall 12 are enclosed outside the inner wall 2. In the high-temperature sintering sagger, the ventilation cavity 3 is provided with a plurality of outlets, and any one of the outlets faces to the horizontal direction or inclines downwards, so that gas flowing out of the outlets flows horizontally in the sintering cavity or flows towards the bottom of the sagger body, the materials in the sintering cavity are prevented from being blown outwards, and the materials in the sintering cavity can be prevented from entering the ventilation cavity 3 from the outlets. In addition, in the high-temperature sintering sagger, at least part of the outlet is inclined towards the bottom wall 11, which is beneficial to ensuring the self-cleaning effect on the bottom of the sagger body.

On the basis of the above embodiment, the entire outlet of the ventilation chamber 3 comprises a plurality of inclined outlets inclined toward the bottom wall 11, and the spraying range of the inclined outlets covers the entire bottom wall 11, as shown in fig. 5. It can be seen that the gas ejected from these oblique outlets can blow the entire bottom wall 11, ensuring that the gas can strip off the material attached to any part of the bottom wall 11 during the self-cleaning operation of the high temperature sintering sagger.

Generally, the angle between the inclined outlet and the horizontal plane is any value greater than 5 ° and less than 70 °. Of course, as can be seen from the foregoing, the inclined outlet is inclined toward the bottom wall 11, so that the fine powder material does not leak through the inclined outlet and does not block the inclined outlet.

Referring to fig. 1 and 2, the inlet 33 of the vent chamber 3 is disposed on the bottom wall 11, which does not affect other steps of the high temperature sintering sagger in the sintering operation. Of course, the inlet 33 of the vent chamber 3 may be provided in other parts of the saggar body.

Furthermore, in some embodiments, the external wall 1 of the sagger body may comprise a bottom wall 11 and side walls 12, as mentioned above, the bottom wall 11 is located at the bottom of the sagger body, the side walls 12 are located at the sides of the sagger body, and both the bottom wall 11 and the side walls 12 are enclosed outside the internal wall 2; the inner wall 2 of the sagger body can comprise more than two inner wall panels 21, these inner wall panels 21 extending from the center of the sintering chamber to the side walls 12. If the inner wall panel 21 of the inner wall 2 extends from the center of the sintering cavity and is connected to the side wall 12 of the outer wall 1, the sintering cavity is divided into four by the inner wall panels 21, and referring to fig. 2, the four inner wall panels 21 distributed in a cross shape divide the sintering cavity into four. If the inner wall panel 21 of the inner wall 2 extends from the center of the sintering cavity but is separated from the side wall 12 of the outer wall 1, any part of the sintering cavity is always communicated.

The interior wallboard 21 of interior wall body 2 is located in the export of ventilation chamber 3, consequently, interior wallboard 21 is favorable to increasing the quantity of export with sintering chamber subregion on the one hand, on the other hand, improves the distribution homogeneity of a plurality of exports in the sagger body, ensures the aeration volume at the different positions in sintering chamber.

In the above embodiment, all the inner wall panels 21 of the inner wall body 2 are distributed in a central symmetrical manner around the center of the sintering chamber, including but not limited to a cross-shaped configuration as shown in fig. 2.

Typically, for any one of the inner wall panels 21 of the inner wall 2, the two pairs of side walls 12 of the inner wall panel 21 are provided with outlets.

In addition, for the outlet arranged on the inner wall plate 21, the caliber of the outlet is gradually reduced from the center to the edge of the sintering cavity, in other words, the caliber of the outlet is larger closer to the center of the sintering cavity, so that more gas can be provided for the sintering cavity, and further more oxygen is provided, otherwise, the caliber of the outlet is smaller closer to the edge of the sintering cavity, and compared with the center of the sintering cavity, the introduced gas and the oxygen in the gas are smaller, so that the gas and the oxygen in the gas are adaptive to the distribution characteristics of the air outside the sagger body in the sintering cavity in the sintering operation, the balance of oxygen introduction at different parts of the sintering cavity is facilitated, and the quality of the sintering operation of the high-temperature sintering sagger is improved.

In some embodiments, the vent lumen 3 of the sagger body may comprise a vertical lumen 31 and a lateral lumen 32; the vertical cavity 31 extends along the height direction of the inner wall 2, the horizontal cavity 32 extends along the thickness direction of the inner wall 2, and the inner diameter of the vertical cavity 31 is larger than that of the horizontal cavity 32. The inner diameter of the vertical cavity 31 is larger than that of the transverse cavity 32, which is beneficial to improving the air inflow of the ventilation cavity 3; the inner diameter of the transverse cavity 32 is smaller than that of the vertical cavity 31, so that materials in the sagger body can be prevented from entering the transverse cavity 32. Typically, the internal diameter of the ventilation lumen 3 is between 0.001um and 1.5cm at different locations.

To sum up, the high temperature sintering sagger that this application provided designs criss-cross interior wall body 2 in the sagger body to set up the chamber of ventilating 3 in outer wall body 1 and interior wall body 2, let in gas through the chamber of ventilating 3 in to the sagger body, improve the material in sintering process and gaseous area of contact, guarantee to be in this internal material of different positions of sagger and fresh reaction gas's abundant contact and reaction, thereby improve the productivity and the performance of product. In addition, after the material sintering finishes, can let in compressed air in to the sagger body through the chamber of ventilating 3, sweep the sagger body, with this internal sediment clean up of sagger, be favorable to the next operation of high temperature sintering sagger.

The high temperature sintering sagger provided by the present application is described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims

1. A high-temperature sintering sagger is characterized by comprising a sagger body with a sintering cavity; the sagger body comprises an outer wall body (1) and an inner wall body (2) arranged in the outer wall body (1); interior wall body (2) are located the center in sintering chamber, be equipped with in interior wall body (2) and ventilate chamber (3), the entry (33) in chamber (3) of ventilating is in outer wall body (1), a plurality of exports dispersion in chamber (3) of ventilating is in the surface of interior wall body (2).

2. A high temperature sintering sagger according to claim 1, characterized in that said external wall (1) comprises a bottom wall (11) and a side wall (12); any one of the outlets is arranged towards the horizontal direction or the downward direction, and at least part of the outlets is inclined towards the bottom wall (11).

3. High temperature sintering sagger according to claim 2, characterized in that all said outlets comprise a plurality of inclined outlets inclined towards said bottom wall (11), the spraying range of said inclined outlets covering the whole bottom wall (11).

4. The high temperature sintering sagger of claim 3, wherein any of said angled outlets has an angle greater than 5 ° and less than 70 ° with respect to the horizontal.

5. High temperature sintering sagger according to claim 2, characterized in that said inlet (33) is provided to said bottom wall (11).

6. High temperature sintering sagger according to claim 1, characterized in that said external wall (1) comprises a bottom wall (11) and a side wall (12); the inner wall body (2) comprises more than two inner wall plates (21) extending from the center of the sintering cavity to the side walls (12).

7. A high temperature sintering sagger according to claim 6, characterized in that all said inner wall panels (21) are distributed with central symmetry around the center of said sintering cavity.

8. A high temperature sintering sagger as claimed in claim 7, characterized in that, said outlets are provided on both side wall surfaces of any of said inner wall panel (21).

9. The high temperature sintering sagger of claim 6, wherein an aperture of said outlet decreases from a center to an edge of said sintering chamber.

10. A high temperature sintering sagger according to any of claims 1 to 9, characterized in that said venting chamber (3) comprises a vertical chamber (31) extending along the height direction of said inner wall (2) and a lateral chamber (32) extending along the thickness direction of said inner wall (2); the inner diameter of the vertical cavity (31) is larger than that of the transverse cavity (32).