DRYER FOR MATERIAL TO BE DRIED

• US 20110035955A1
• Filed: 03/19/2009
• Published: 02/17/2011
• Est. Priority Date: 03/19/2008
• Status: Active Grant

• Current Assignee: Binder + Company AG
• Original Assignee: Binder + Company AG
• Inventors: Anibas, Franz
• Granted Patent: US 8,800,161 B2
• Time in Patent Office: Days
• US Class Current: 34/236
• CPC Class Codes: F26B 17/26 with movement performed by reciprocating or oscillating conveyors propelling materials over stationary surfaces; with movement performed by reciprocating or oscillating shelves, sieves, or trays F26B17/006 takes precedence
• CPC Class Codes: F26B 25/10 Floors, roofs, or bottoms; False bottoms
• CPC Class Codes: F26B 3/0923 by mechanical means, e.g. vibrated plate, stirrer

Abstract

A dryer for material to be dried (T), wherein an air supply channel (4) for supplying a drying gas to the drying region is provided, and at least one exhaust-gas opening (8) is provided for removing the drying gas, wherein the air supply channel (4) is surrounded at a distance by an outer wall (11), which has at least one supply opening (12) and at least one removal opening (13) for the cooling medium (K), wherein between the at least one supply opening (12) and the at least one removal opening (13) a flow section (14) for the cooling medium (K) is formed between the outer wall (11) and the air supply channel (4). According to the invention, the at least one removal opening (13) is configured as a through-opening in the air supply channel (4), which connects the region bounded by the outer wall (11) to the interior of the air supply channel (4), wherein the at least one through-opening (13) is arranged in the upper regions of the air supply channel (4) and is configured in such a way as to make it possible for the cooling medium (K) to flow downwards along the inner side of the air supply channel (4).

Claims

1. A dryer for material to be dried (T) comprising a feeding point (9) for the material to be dried, a drying region, as well as a delivery point (10) for the material to be dried (T), wherein an air supply channel (4) for supplying a drying gas, preferably drying air, to the drying region is provided, as well as at least one exhaust-gas opening (8) is provided for removing the drying gas after passing through the drying region, wherein the air supply channel (4) is surrounded at least in sections at a distance by an outer wall (11), which has at least one supply opening (12) for supplying a cooling medium (K) as well as at least one removal opening (13) for the cooling medium (K), wherein between the at least one supply opening (12) and the at least one removal opening (13) a flow section (14) for the cooling medium (K) is formed between the outer wall (11) and the air supply channel (4), and the at least one removal opening (13) is configured as a through-opening in the air supply channel (4), which connects the region bounded by the outer wall (11) to the interior of the air supply channel (4), wherein the at least one through-opening (13) is arranged in the upper regions of the air supply channel (4) and is configured in such a way as to make it possible for the cooling medium (K) to flow downwards along the inner side of the air supply channel (4).

2. The dryer according to claim 1, further comprising baffle plates for the cooling gas are arranged in the region of the through-opening (13).

3. The dryer according to claim 1 wherein at least one removal opening (13) is directed towards the area of the drying region facing the delivery point (10).

4. The dryer according to claim 1 wherein the dryer is a fluid bed dryer.

5. The dryer according to claim 4, wherein the fluid bed dryer is a vibrating fluid bed dryer.

6. The dryer according to claim 1 wherein the cooling medium (K) is a cooling gas.

7. The dryer according to claim 1 wherein the at least one supply opening (12) dryer is arranged below the air supply channel (4).