KR200468934Y1 - Multistage stackable sagger of box type - Google Patents

Multistage stackable sagger of box type Download PDF

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Publication number
KR200468934Y1
KR200468934Y1 KR2020130003169U KR20130003169U KR200468934Y1 KR 200468934 Y1 KR200468934 Y1 KR 200468934Y1 KR 2020130003169 U KR2020130003169 U KR 2020130003169U KR 20130003169 U KR20130003169 U KR 20130003169U KR 200468934 Y1 KR200468934 Y1 KR 200468934Y1
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South Korea
Prior art keywords
box
sagger
main body
shaped
powder
Prior art date
Application number
KR2020130003169U
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Korean (ko)
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이철휘
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이철휘
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Priority to KR2020130003169U priority Critical patent/KR200468934Y1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D5/00—Supports, screens, or the like for the charge within the furnace
    • F27D5/0006—Composite supporting structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D5/00—Supports, screens, or the like for the charge within the furnace
    • F27D5/0068—Containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
    • B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D5/00—Supports, screens, or the like for the charge within the furnace
    • F27D2005/0081—Details
    • F27D2005/0093—Means to maintain the form of the article

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

Multi-stage stacking box type sagger according to the present invention is a ferrite powder (ferrite powder), a metal oxide and a magnetic material, a cathode active material of a lithium ion secondary battery, for example, LCO (LiCoO 2 ), LMO (LiMn 2 O 4 ), It is for sintering powders such as LNO (LiNiO 2 ), NMC (Li (Ni-Mn-Co) O 2 ), LFP (LiFePO 4 ) in the furnace, and the concave space for containing the powder It is formed of a box-shaped structure formed on each side, and the side wall is formed on each side, and the four sides of the main body protrudes to the upper side from the four corners connected to each other to support the lower body of the other box-shaped sagger located on the upper side of the main body And a support base, and the support jaw is configured to minimize the contact area by supporting the lower surface of the main body of the other box-shaped saggers respectively located on the top thereof in line contact.
According to the present invention, the contact area between the upper and lower box type saggers can be greatly reduced, so that even if the number of times of use increases, an improved effect of not being strongly bonded to each other can be obtained, and an improved effect of achieving a stable automated process can be obtained. .

Figure R2020130003169

Description

Multi-stage stacking box type sagger {MULTISTAGE STACKABLE SAGGER OF BOX TYPE}

The present invention is a multi-stage loading for firing the powder of ferrite powder (ferrite powder), metal oxide and magnetic material raw materials, and cathode active materials (LCO, LMO, LNO, NMC, LFP, etc.) in lithium ion batteries. It relates to a box-shaped sagger for more specifically, the shape of the lower box-shaped sagger part contacted with the box-shaped sagger at the top during multi-stage loading is formed in a curved line to greatly reduce the contact area, so that it is not strongly joined between the stacked saggers. At the same time, the material of the upper surface of the box-shaped sagger which is in contact with the lower box-shaped sagger is formed of a material that suppresses the infiltration of the oxide component generated from the powder. It relates to a box-type sagger for loading.

Generally, powders such as ferrite powder (ferrite powder), which are metal oxides and magnetic materials, and cathode active materials (LCO, LMO, LNO, NMC, LFP) of lithium ion secondary batteries are required to be fired at a high temperature in an electric furnace. .

The box-type sagger used for the firing of powder refers to a firing aid that maximizes the loading of the powder and has the required electrical characteristics when the powder is put into an electric furnace and fired.

However, such conventional box-shaped saggers are made of a mixture of alumina, mullite, magnesia, refractory clay, and the like, and the combination ratio thereof may vary slightly depending on the application.

The conventional box-type sagger contains powder in the inside, and when the firing operation is performed inside the electric furnace, sublimated components, such as Li oxide or Mn oxide, generated in the powder infiltrate into the surface of the box-type sagger, and the number of times of use increases. As the flying amount increases, the amount of infiltration increases, and a phenomenon in which the contact points of the box-shaped saggers stacked on the upper and lower stages are bonded to each other occurs.

Such a bonding phenomenon between the upper and lower box-shaped saggers is weakly formed at the beginning of use, but as the number of times of use increases, the bonding strength becomes stronger and does not fall to the extent of light impact. Therefore, there is an unreasonable situation in the automated process, such as the need to arrange a separate personnel for removing the bonded box-shaped saggers in the automated process.

That is, the conventional box-shaped sagger 1 has a box-shaped structure in which a concave space for containing powder is formed on the upper surface, as shown in FIGS. 1 and 2, and the body 10 having sidewalls 20 formed on four sides. And the sidewalls 20 of the main body 10 protruding upward from four corners connected to each other to support the lower surface of the main body of another box-shaped sagger located at the upper side of the main body 30. ).

Such a conventional box-shaped sagger 1 has a shape of the support jaw 30 of the box-shaped sagger 10 portion at the bottom contacted with the other box-shaped sagger 10 at the top when multi-stage loading is formed in the plane 32 It is laminated | stacked by surface contact.

The surface contact of such a planar 32 structure increases the contact area between the box-shaped saggers 10 stacked up and down, and as the number of times of use increases, oxide components generated during firing from the powder, for example, Li oxide or Mn oxide Bonding strength by infiltration, etc., became very strong, resulting in a problem of not being separated lightly from each other.

The present invention was developed in order to solve the conventional problems as described above, the object of the present invention is to make the shape of the box-shaped sagger of the bottom contacting with the box-shaped sagger at the top when the multi-stage stacking of the box-shaped sagger, the line contact in the prior art Compared to the present invention, the present invention provides a multi-stage stacking box-type sagger, which is improved so as not to be strongly bonded to upper and lower contact areas by greatly reducing the contact area.

Another object of the present invention is a phenomenon in which the material of the upper surface of the box-shaped sagger in contact with the lower box-shaped sagger is bonded to each other even when used for a long time by using a material that suppresses the infiltration of the oxide component generated from the powder. It is to provide an improved multi-stage stacking box type sagger to achieve a stable automation process by drastically improving.

In order to achieve the above object, the present invention, in the multi-stage stacking box type sagger for firing the powder in the furnace (Kiln),

A main body formed of a box-shaped structure having a concave space for containing powder formed on an upper surface thereof, and a body having sidewalls formed on four sides; And

And a support jaw protruding upward from the four corners of the side walls of the main body to support the lower surface of the main body of the other box-shaped sagger located at the upper side of the main body. It is to provide a multi-stage stacking box-type sagger minimizing the contact area by holding the lower body of the other box-shaped sagger located in the line contact.

And, the present invention is preferably a multi-stage supporting the lower surface of the main body of the other box-shaped saggers formed in an arc shape having a peak having the highest peak in the center of the cross-section thereof in line contact To provide a boxed sagger for loading.

In addition, the present invention preferably the main body is a multi-stage stacking box-type sagger attached to the bottom plate of the bottom surface in contact with the other box-shaped sagger at the bottom of each of the bottom plate of the material to suppress the infiltration of the oxide component generated in the powder. In providing.

And, the present invention is preferably to provide a multi-stage stacking box-type sagger made of a compound material containing 73 ~ 95% Al 2 O 3 .

Multi-stage stacking box-shaped sagger according to the present invention, respectively, protruding from the four corners of the main body to the upper side of the other box-shaped saggers supporting the lower surface of the main body of the other box-shaped sagger located on the upper side The structure minimized the contact area by supporting the lower surface of the main body in line contact.

Therefore, the present invention can significantly reduce the contact area between the upper and lower box-shaped saggers compared to the prior art, thereby obtaining an improved effect of not being strongly bonded to each other even if the number of times of use increases.

In addition, the multi-stage stacking box type sagger according to the present invention is a sublimated oxide component, such as Li oxide or Mn oxide, generated from the powder at the top of the box type sagger bottom plate contacting the base of the box shaped sagger at the bottom. Al 2 O 3 materials which suppress infiltration such as these are used. Therefore, according to the present invention, it is possible to achieve an improved effect of achieving a stable automated process by drastically improving the phenomenon of mutual bonding even when used for a long time many times.

1 is a perspective view showing in detail the cross-sectional structure of the flat base jaw of the multi-stage stacking box type sagger according to the prior art.
Figure 2 is a longitudinal cross-sectional view of a multi-stage stacking box type sagger according to the prior art.
Figure 3 is an enlarged perspective view showing in detail the cross-sectional structure of the arc-shaped support jaw of the multi-stage stacking box type sagger according to the present invention.
Figure 4 is a longitudinal cross-sectional view of a multi-stage stacking box type sagger according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

Multi-stage stacking box type sagger 100 according to the present invention is a ferrite powder (ferrite powder), a metal oxide and a magnetic material raw material, a cathode active material of a lithium ion secondary battery, for example LCO (LiCoO 2 ), LMO (LiMn 2 O 4 ), LNO (LiNiO 2 ), NMC (Li (Ni-Mn-Co) O 2 ), LFP (LiFePO 4 ) and the like for firing the powder in the furnace (Kiln).

Multi-stage stacking box-shaped sagger 100 according to the present invention, as shown in Figure 3 and 4, made of a box-shaped structure formed on the upper surface of the concave space for containing the powder, the side wall 120 is everywhere The main body of the other box-shaped sagger 100 having a main body 110 formed on the upper side of the main body 110 to protrude upward from each corner of the side wall 120 of the main body 110 are connected to each other ( 110) includes a support step 130 to support the lower surface.

The support jaw 130 is to minimize the contact area by holding the lower surface of the main body 110 of the other box-shaped sagger 100 located on the upper line, respectively, the upper, lower than the conventional surface contact structure The contact area between the box-shaped sagger 100 is greatly reduced.

The support base 130 is formed in an arc-shaped structure 132 having a peak having a highest cross section in the center thereof, so that the bottom surface of the main body 110 of the other box-shaped sagger 100 located thereon. It is a structure that holds up by line contact.

The base 130 may be formed not only in the structure of the arc 132 cross section described above, but also in other forms of cross section such as a triangular cross section.

In addition, the support jaw 130 may further reduce the contact area between the upper and lower box-shaped sagger 100 by further forming a cut portion (not shown) at the stop portion.

However, such deformable structures can be manufactured in consideration of manufacturing difficulty, increase in mold cost and defective rate of product, fragility of structural strength in use, especially damage from external load or damage by self load, at high temperature, Most preferably, it is the structure of arc 132 cross section.

In addition, according to the present invention, the bottom plate 140 is formed at each of four corners of the lower surface of the main body 110.

The bottom plate 140 is a box-shaped sagger 100 is in contact with the base of the other box-shaped sagger 100 at the bottom of the bottom surface of each of the infiltration of the oxide component occurring in the powder from all four corners. It is made of a material to suppress.

The bottom plate 140 may be made of a compound material including, for example, 73 to 95% of Al 2 O 3 . That is, the bottom plate 140 is a material having a higher Al 2 O 3 content than the main body 110 in order to suppress infiltration of Li oxide or Mn oxide.

For example, the main body 110 may be formed of a compound material including 50 to 70% of Al 2 O 3 and 0.1 to 13% of MgO. In this case, as the bottom plate 140 is made of an high-compound material the content of Al 2 O 3 containing Al 2 O 3 73 ~ 95%, it is possible to suppress the invasion, such as Li oxide or Mn oxide effectively .

Multi-stage stacking box-shaped sagger 100 according to the present invention configured as described above, containing a powder (not shown) in the interior of the body 110, as shown in Figure 3 and 4, are sequentially stacked in multiple stages. .

Then, charged and fired into the kiln in the stacked state, and in this process Li oxide or Mn oxide of the powder is sublimed and infiltrated or deposited in the multi-stage stacking box type sagger 100 of the present invention. .

However, according to the present invention, the support projections 130 are formed to support the lower surface of the main body 110 of the other box-shaped sagger 100 located on the upper side, respectively, protruding upward from the four corners of the main body 110, respectively. The lower surface of the main body 110 of the other box-shaped sagger 100 is located in the line contact structure to minimize the contact area.

In addition, the main body 110 is a bottom plate of Al 2 O 3 material that suppresses the infiltration of Li oxide or Mn oxide in the four corners of the lower surface in contact with the supporting jaw 130 of the box-shaped sagger 100 at the bottom ( Each of the 140 inserts is formed.

Therefore, the present invention can significantly reduce the contact area by configuring the contact area between the upper and lower box-shaped sagger 100 as a line contact, compared to the prior art, and at the same time the infiltration and deposition of various vaporization materials generated from the powder bottom plate 140 Even if the number of uses increases by blocking the upper and lower box type sagger 100 is not strongly bonded to each other.

As such, according to the present invention, even when used for a long time many times, the upper and lower box-shaped saggers 100 are significantly improved by mutually improving the phenomenon of separating the upper and lower box-shaped saggers 100, thereby eliminating the need for separate workers. As a result, a stable automated process can be achieved.

Although the present invention has been described in detail with reference to specific embodiments thereof with reference to the drawings, the present invention is not limited to these specific structures. It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as set forth in the appended claims. For example, the cross-sectional structure of the base jaw 130 may be made of an intermittent structure, not continuous, it may be made in the form of several polygonal cross section. In addition, the material and composition of the bottom plate 140 may vary depending on the type of powder. Nevertheless, it is intended that such simple design modifications or variations are all clearly within the scope of the present invention.

1: conventional box-shaped sagger 10,110: main body
20,120: side wall 30,130: jaw
32: flat 100: multi-stage stacking box type sagger
132: arc 140: bottom plate

Claims (4)

In the multi-stage boxed sagger for firing the powder in the kiln,
A main body formed of a box-shaped structure having a concave space for containing powder formed on an upper surface thereof, and a body having sidewalls formed on four sides; And
And a support jaw protruding upward from the four corners of the side walls of the main body to support the lower surface of the main body of the other box-shaped sagger located at the upper side of the main body. Multi-stage stacking box type sagger, characterized in that to minimize the contact area by holding the main body bottom surface of the other box-shaped sagger located in line contact. According to claim 1, wherein the support jaw is formed in an arc shape having a peak (peak) with the highest cross section in the center to support the lower surface of the main body of the other box-shaped sagger located in the upper portion in line contact Multi-stage stacking box type new. The multi-stage stacking box type according to claim 1, wherein the main body is formed with bottom plates made of a material for inhibiting infiltration of oxide components generated from the powder at four corners of the lower surface in contact with other box-shaped saggers at the bottom thereof. New. The multi-stage stacking box type sagger of claim 3, wherein the bottom plate is made of a compound material containing 73 to 95% of Al 2 O 3 .


KR2020130003169U 2013-04-24 2013-04-24 Multistage stackable sagger of box type KR200468934Y1 (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106946553A (en) * 2017-04-01 2017-07-14 武汉理工大学 A kind of ceramic saggar of low-cost long-life and preparation method thereof
WO2019066545A1 (en) * 2017-09-28 2019-04-04 주식회사 포스코 Sagger for firing secondary battery active material and method for manufacturing secondary battery active material using same
CN112484505A (en) * 2020-12-01 2021-03-12 辰硕电子(九江)有限公司 High-temperature-resistant silicon carbide sagger capable of discharging glue on valve plate special for piezoresistor
KR20220127021A (en) * 2021-03-10 2022-09-19 주식회사 엘 앤 에프 Calcination Vessel for Manufacture of Electrode Active Material
KR20230091687A (en) 2021-12-16 2023-06-23 조선내화 주식회사 Reuse method of sagger for manufacturing positive electrode active material and sagger using same
KR102636367B1 (en) * 2023-09-26 2024-02-13 김대헌 Sagger for loading secondary batteries
WO2024053970A1 (en) * 2022-09-07 2024-03-14 주식회사 엘 앤 에프 Calcination vessel for manufacturing electrode active material

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR970004964B1 (en) * 1994-03-07 1997-04-10 김주환 Moulds for producing articles from forming ceramics
JP2000111269A (en) 1998-09-30 2000-04-18 Toshiba Ceramics Co Ltd Tool for burning
JP2009227527A (en) 2008-03-25 2009-10-08 Ngk Insulators Ltd Setter for firing electronic component, and method for producing the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR970004964B1 (en) * 1994-03-07 1997-04-10 김주환 Moulds for producing articles from forming ceramics
JP2000111269A (en) 1998-09-30 2000-04-18 Toshiba Ceramics Co Ltd Tool for burning
JP2009227527A (en) 2008-03-25 2009-10-08 Ngk Insulators Ltd Setter for firing electronic component, and method for producing the same

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106946553B (en) * 2017-04-01 2020-01-14 武汉理工大学 Low-cost long-life ceramic sagger and preparation method thereof
CN106946553A (en) * 2017-04-01 2017-07-14 武汉理工大学 A kind of ceramic saggar of low-cost long-life and preparation method thereof
JP2020535612A (en) * 2017-09-28 2020-12-03 ポスコＰｏｓｃｏ Refractory sack for firing secondary battery active material and manufacturing method of secondary battery active material using this
KR101988736B1 (en) * 2017-09-28 2019-06-12 주식회사 포스코 Sagger for calcination of secondary battery active material and method for preparing the secondary battery active material using the same
KR20190036791A (en) * 2017-09-28 2019-04-05 주식회사 포스코 Sagger for calcination of secondary battery active material and method for preparing the secondary battery active material using the same
CN111148957A (en) * 2017-09-28 2020-05-12 株式会社Posco Sagger for firing secondary battery active material and method for manufacturing secondary battery active material using the same
WO2019066545A1 (en) * 2017-09-28 2019-04-04 주식회사 포스코 Sagger for firing secondary battery active material and method for manufacturing secondary battery active material using same
US11713925B2 (en) 2017-09-28 2023-08-01 Posco Holdings Inc. Sagger for firing secondary battery active material and method for manufacturing secondary battery active material using same
CN112484505A (en) * 2020-12-01 2021-03-12 辰硕电子(九江)有限公司 High-temperature-resistant silicon carbide sagger capable of discharging glue on valve plate special for piezoresistor
KR20220127021A (en) * 2021-03-10 2022-09-19 주식회사 엘 앤 에프 Calcination Vessel for Manufacture of Electrode Active Material
KR102505371B1 (en) * 2021-03-10 2023-03-02 주식회사 엘 앤 에프 Calcination Vessel for Manufacture of Electrode Active Material
KR20230091687A (en) 2021-12-16 2023-06-23 조선내화 주식회사 Reuse method of sagger for manufacturing positive electrode active material and sagger using same
WO2024053970A1 (en) * 2022-09-07 2024-03-14 주식회사 엘 앤 에프 Calcination vessel for manufacturing electrode active material
KR102636367B1 (en) * 2023-09-26 2024-02-13 김대헌 Sagger for loading secondary batteries

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