Gypsum slurry mixer output canister

Patent metadata

Field	Value
Publication number	US-11407145-B2
Application number	US-202017024877-A
Country	US
Kind code	B2
Filing date	Sep 18, 2020
Priority date	Oct 28, 2019
Publication date	Aug 9, 2022
Grant date	Aug 9, 2022

Abstract

A gypsum slurry mixer output canister is provided, including a canister housing having an upper end, an opposite lower end and defining a canister interior, a cover secured to the upper end, a slurry inlet in operational relationship to the upper end, a spiral block associated with the upper end, and having a helical flow surface depending into the interior. A flow distributor is secured to the lower end and is in fluid communication with the interior, and a slurry outlet is defined by the lower canister housing end.

First claim

The invention claimed is:

1. A gypsum slurry mixer output canister, comprising:
a canister housing having an upper end, an opposite lower end and defining a canister interior;
a cover secured to said upper end;
a slurry inlet in operational relationship to said upper end;
a spiral block associated with said upper end, and having a helical flow surface depending into said interior;
a flow distributor secured to said lower end and being in fluid communication with said interior, said flow distributor defining an outlet aperture having a plurality of radially-spaced lobes in fluid communication with a central opening of said outlet aperture, such that said lobes are located within a same plane as said central opening, wherein said lobes are each configured in a dovetail shape; and
a slurry outlet defined by said lower canister housing end.

2. The canister of claim 1 , wherein said upper end has a radially extending flange for accommodating mounting of said cover.

3. The canister of claim 1 , wherein said slurry inlet has a non-circular cross-section where said slurry inlet meets said canister housing.

4. The canister of claim 3 , wherein said slurry inlet has a rectangular cross-section where said slurry inlet meets said canister housing.

5. The canister of claim 1 , wherein said spiral block is secured to an underside of said cover.

6. The canister of claim 1 , wherein said spiral block has a vertical inlet wall in fluid communication with said slurry inlet, and forming an end of said helical flow surface.

7. The canister of claim 1 , wherein said helical flow surface defines a 360° arc.

8. The canister of claim 1 , wherein said spiral block has a vertical height of approximately 4.5 inches, ±1 inch.

9. The canister of claim 1 , wherein said canister housing has a vertical height of approximately 8.5 inches±1 inch.

10. The canister of claim 1 , wherein said canister housing has a vertical height of approximately 10 inches±1 inch.

11. The canister of claim 1 , wherein said flow distributor includes a plurality of radially inwardly projecting teeth defining said plurality of lobes.

12. The canister of claim 11 , wherein said teeth each define a radially inwardly tapered internal geometry with upper and lower surfaces that converge to an arcuate edge of said teeth, said arcuate edges forming an innermost circumference of said central opening.

13. The canister of claim 1 , wherein said spiral block takes up approximately 50% of a vertical height of said canister housing.

14. A gypsum slurry mixer output canister, comprising:
a canister housing having an upper end, an opposite lower end and defining a canister interior;
a cover secured to said upper end;
a slurry inlet secured to said upper end;
a spiral block associated with said upper end, and having a helical flow surface depending into said interior;
a flow distributor secured to said lower end and being in fluid communication with said interior, said flow distributor including a plurality of radially inwardly projecting peripherally spaced teeth which define a plurality of lobe-shaped recesses in communication with a central opening, such that said lobe-shaped recesses are located between adjacent teeth, wherein said spaced teeth are each configured in a trapezoidal shape; and
a slurry outlet defined by said lower canister housing end.

15. The canister of claim 14 , wherein said vertical height of said canister housing is approximately 8.5 inches, and said vertical height of said spiral block is approximately 4.5 inches.

16. The canister of claim 14 , wherein a flow chamber defined between the spiral block and the flow distributor has a vertical height of approximately 1.0 inch.

17. The canister of claim 14 , wherein said spaced teeth each define a radially inwardly tapered internal geometry with upper and lower surfaces that converge to an arcuate edge of said teeth, said arcuate edges forming an innermost circumference of said central opening.

18. A gypsum slurry mixer output canister, comprising:
a canister housing having an upper end, an opposite lower end and defining a canister interior;
a cover secured to said upper end;
a slurry inlet secured to said upper end;
a spiral block associated with said upper end, and having a helical flow surface depending into said interior;
a flow distributor secured to said lower end and being in fluid communication with said interior, said flow distributor including a plurality of radially inwardly projecting peripherally spaced teeth which define a plurality of lobe-shaped recesses in communication with a central opening, such that said lobe-shaped recesses are located between adjacent teeth, wherein said spaced teeth each define a radially inwardly tapered internal geometry with upper and lower surfaces which converge to an arcuate edge of said teeth, said arcuate edges forming an innermost circumference of said central opening; and
a slurry outlet defined by said lower canister housing end.

19. The canister of claim 18 , wherein said spaced teeth are each configured in a trapezoidal shape and said lobes are each configured in a dovetail shape.

20. A gypsum slurry mixer output canister, comprising:
a canister housing having an upper end, an opposite lower end and defining a canister interior;
a cover secured to said upper end;
a slurry inlet secured to said upper end;
a spiral block associated with said upper end, and having a helical flow surface depending into said interior;
a flow distributor secured to said lower end and being in fluid communication with said interior, said flow distributor including a plurality of radially inwardly projecting peripherally spaced teeth which define a plurality of lobe-shaped recesses in communication with a central opening, such that said lobe-shaped recesses are located between adjacent teeth;
a wall of said flow distributor defines a wedge-shaped cross-section, with a tip of said teeth forming a tip of said wedge shape; and
a slurry outlet defined by said lower canister housing end.

Assignees

• United States Gypsum Co

Inventors

• Lash Jason
• Krell Michael
• Eversole Leslie
• Rosario Domingo

Classifications

• B28B19/0092

  to webs, sheets or the like, e.g. of paper, cardboard · CPC title

• B01F23/235

  for making foam · CPC title

• B28C5/0881

  having a stator-rotor system with intermeshing teeth or cages · CPC title

• B28C5/1269 Primary

  for making cellular concrete (in general B28C5/381) · CPC title

• B28C5/386

  Plants; Systems; Methods · CPC title