Device for the uniform distribution of slurries

Patent metadata

Field	Value
Publication number	US-10946549-B2
Application number	US-201515565809-A
Country	US
Kind code	B2
Filing date	Dec 17, 2015
Priority date	Apr 14, 2015
Publication date	Mar 16, 2021
Grant date	Mar 16, 2021

Abstract

The invention relates to a conveyor line (1) for the continuous production of drywall boards as well as a slurry distributing device (22) which is used in this conveyor line (1). The distributing device is used for the uniform and low-speed flow distribution of slurries (20).

First claim

The invention claimed is:

1. A slurry distributing device comprising: a roller conveyer, wherein three or more rollers are disposed in parallel with one another in a common plane such that gussets between the individual rollers are formed for enabling occurrence of backflow of slurry, the three or more rollers are rotatably mounted about their longitudinal axes and are disposed essentially perpendicular to a delivery direction of the slurry, wherein the slurry distributing device is equipped to be supplied with the slurry from at least one mixing device, to adapt a speed of the slurry to a conveying device speed and to distribute the slurry uniformly over a desired width and then to deliver the distributed slurry onto a lower layer, wherein the slurry distributing device actively transports the slurry.

2. The slurry distributing device according to claim 1 , wherein the three or more rollers are in direct contact with one another.

3. The slum distributing device according to claim 1 , wherein the three or more rollers are equipped to rotate in the delivery direction or alternately in the delivery direction and against the delivery direction.

4. The slum distributing device according to claim 1 , wherein the slurry distributing device also comprises at least one last roller in the delivery direction, which has a smaller diameter than the other rollers.

5. The slurry distributing device according to claim 4 , wherein the at least one last roller is equipped to rotate against the delivery direction.

6. The slurry distributing device according to claim 4 , wherein the at least one last roller is disposed beneath the common plane of the other rollers.

7. The slurry distributing device according to claim 4 , wherein the at least one last roller is pretensioned by means of a spring.

8. The slurry distributing device according to claim 1 , wherein the slurry distributing device comprises, in addition to the roller conveyor, a process belt.

9. The slurry distributing device according to claim 8 , wherein the process belt is disposed upstream of the roller conveyor.

10. The slurry distributing device according to claim 8 , wherein the process belt and the roller conveyor have separate drive units.

11. A conveyor line for producing gypsum plasterboards, comprising a conveying device, at least one mixing device for mixing at least one slurry and at least one slurry distributing device comprising a roller conveyer, wherein three or more rollers are disposed in parallel with one another in a common plane such that gussets between the individual rollers are formed for enabling occurrence of backflow of slurry, the three or more rollers are rotatably mounted about their longitudinal axes and are disposed essentially perpendicular to a delivery direction of the slurry; wherein the at least one slurry distributing device is disposed between a supply device for the slurry and delivery of the slurry, and wherein the at least one slurry distributing device is equipped to adapt a speed of the slurry to a conveying device speed and to deliver the slurry supplied from the at least one mixing device essentially uniformly onto a lower layer, wherein the lower layer is the conveying device itself or a casing material lying on the conveying device and preferably fed continuously, wherein the at least one slurry distributing device is equipped to actively transport the slurry.

12. The conveyor line according to claim 11 , wherein a discharge height of the slurry from the at least one slurry distributing device onto a surface of the lower layer is less than 5 cm, preferably less than 4 cm.

13. The conveyor line according to claim 11 , wherein a plurality of slurry distributing devices are disposed one after the other, by means of which identically or differently constituted slurries are delivered onto the lower layer.

14. A method for the use of the slurry distributing device according to claim 1 including producing gypsum plasterboards in a continuous process.

Assignees

• Knauf Gips Kg

Inventors

• Karakoussis Stergios
• Koch Thomas
• Kramer Thomas
• Hartmann Alexander
• Paraskov Georgi
• Schneiderbanger Rainer
• Knauf Carlo

Classifications

• B28B19/00

  Machines or methods for applying the material to surfaces to form a permanent layer thereon (making shaped articles on mandrels B28B1/30; applying liquids or other fluent materials to surfaces in general B05C; glazing or engobing C04B) · CPC title

• B28B5/027 Primary

  the moulding surfaces being of the indefinite length type, e.g. belts, and being continuously fed (feeding B28B13/02) · CPC title

• B28B5/02 Primary

  on conveyors of the endless-belt or chain type (in combination with pressing rollers B28B3/12) · CPC title

• B28B5/00

  Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping · CPC title

• B28B1/30 Primary

  by applying the material on to a core or other moulding surface to form a layer thereon (to form a permanent layer B28B19/00) · CPC title