Refractory article

Patent metadata

Field	Value
Publication number	US-10030910-B2
Application number	US-201414508798-A
Country	US
Kind code	B2
Filing date	Oct 7, 2014
Priority date	Oct 7, 2013
Publication date	Jul 24, 2018
Grant date	Jul 24, 2018

Abstract

A refractory article having a support structure including a first plurality of posts coupled by a first member; and a second plurality of posts substantially parallel with the first plurality of posts, the second plurality of posts coupled by a second member, wherein the support structure has a height, H, and wherein the first and second members are positioned between 0.3H and 0.7H. In another aspect, the support structure has a height to width ratio of at least 1.5, a stiffness factor of no greater than 100 mm, and a solid to open volume ratio of no greater than 5%. In another aspect, the support structure has a weight of no greater than 1200 kg, a stiffness factor of no greater than 100 mm, and a solid to open volume ratio of no greater than 5%.

First claim

What is claimed is:

1. A refractory article, comprising:
a support structure comprising:
a first plurality of posts coupled by a first member, wherein each of the first plurality of posts comprises a through aperture, wherein the through apertures of the first plurality of posts are coaxially aligned, and wherein the first member is a monolithic piece that extends through each of the through apertures of the first plurality of posts; and
a second plurality of posts substantially parallel with the first plurality of posts, wherein the second plurality of posts are coupled by a second member, each of the second plurality of posts comprises a through aperture and the through apertures of the second plurality of posts are coaxially aligned, wherein the second member is a monolithic piece that extends through each of the through apertures of the second plurality of posts; and
a plurality of support members extending between the first and second plurality of posts, wherein the plurality of support members create a plurality of support levels in the support structure,
wherein each one of the first and second plurality of posts comprises a plurality of protrusions that extend from a surface of each respective post, and each support member is supported by a protrusion extending from one of the first plurality of posts and a protrusion extending from one of the second plurality of posts,

wherein:
the support structure has a height to width ratio of at least 1.5;
the support structure has a solid to open volume ratio of no greater than 5%; and
at least one of the first and second members is not secured to the through apertures of the first or second plurality of posts and is configured to move freely in a longitudinal direction.

2. The refractory article according to claim 1 , wherein the support structure has a height, H, and wherein the first and second members are positioned between 0.3H and 0.7H.

3. The refractory article according to claim 1 , wherein the first and second members are each generally cylindrical and generally hollow.

4. The refractory article according to claim 1 , wherein the first and second members have a diameter, D M , wherein the first and second plurality of posts have a width, D P , and wherein D M is less than D P .

5. The refractory article according to claim 1 , further comprising:
a plurality of support shoes,
wherein each one of the first plurality and the second plurality of posts engages with one of the plurality of support shoes.

6. The refractory article according to claim 5 , wherein each one of the plurality of support shoes comprises a rectilinear body having four vertical side walls defining an internal cavity to receive one of the posts, and wherein a top portion of two opposing side walls define an angle, A S , with respect to the vertical side walls, and wherein A S is no greater than 80 degrees.

7. The refractory article according to claim 1 , wherein the plurality of support members are supported by the plurality of protrusions of the first and second plurality of posts.

8. The refractory article according to claim 1 , wherein the plurality of support members are spaced apart from the first member and the second member.

9. The refractory article according to claim 1 , wherein the support structure has a height to width ratio of at least 1.55 and no greater than 4.

10. The refractory article according to claim 1 , wherein neither of the first and second members are secured to the through apertures of the first or second plurality of posts, and both of the first and second member are configured to move freely in a longitudinal direction.

11. The refractory article according to claim 1 , wherein:
the first and second plurality of posts both comprise:
a first outer post;
a first inner post;
a second inner post; and
a second outer post,
wherein the first outer post, the first inner post, the second inner post, and the second outer post of the first plurality of posts are positioned in adjacent alignment;
wherein the first outer post, the first inner post, the second inner post, and the second outer post of the second plurality of posts are positioned in adjacent alignment; and
wherein the first and second members are configured to tie together the first outer post, the first inner post, the second inner post, and the second outer post of the first and second plurality of posts, respectively.

12. The refractory article according to claims 1 , wherein the first and second members comprise a nitrogen bonded silicon carbide.

13. The refractory article according to claim 1 , wherein each of the first and second members extend at an angle substantially perpendicular to the first and second plurality of posts.

14. The refractory article according to claim 1 wherein each support member is supported by an upper surface of one of the plurality of protrusions of the first plurality of posts and an upper surface of one of the plurality of protrusions of the second plurality of posts.

15. The refractory article according to claim 14 , wherein each of the upper surfaces are substantially perpendicular to the posts.

16. The refractory article of claim 1 , wherein each of the first and second members extend in a substantially horizontal direction.

17. The refractory article according to claim 1 , wherein the support structure further comprises a plurality of third members, each of the plurality of third members coupling one of the first plurality of posts and one of the second plurality of posts.

18. The refractory article according to claim 17 , wherein the plurality of third members are positioned at a relative height between 0.7H and 1H of a height, H, of the support structure.

19. The refractory article according to claim 1 , wherein the first and second members have a length, L M , wherein the first and second plurality of posts have a length, L P , and wherein L P is no less than L M .

20. The refractory article according to claim 17 , wherein each of the plurality of the third members are disposed within an aperture of one of the first plurality of posts and within an aperture of one of the second plurality of posts.

Assignees

• Saint Gobain Ceramics

Inventors

• Esjunin Evgeniy E
• MüLLER HUBERT

Classifications

• F27D5/00

  Supports, screens or the like for the charge within the furnace · CPC title

• F27D3/0021 Primary

  of ceramic ware · CPC title

• F27B9/26

  on or in trucks, sleds, or containers · CPC title

• C04B35/64

  Burning or sintering processes (C04B33/32 takes precedence {; powder metallurgy B22F}) · CPC title

• C04B35/622

  Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products · CPC title