AUGER EXHAUST CONSTRUCTION FOR FORCED AIR GRAIN DRYER

• US 3,745,669 A
• Filed: 10/20/1971
• Issued: 07/17/1973
• Est. Priority Date: 10/20/1971
• Status: Expired due to Term

• Current Assignee: Elmo R. Meiners
• Original Assignee: Elmo R. Meiners
• Inventors: Meiners, Elmo R.
• Primary Examiner(s): Sprague, Kenneth W.
• Application Number:
  US05/190,880
• Time in Patent Office: 636 Days
• Field of Search: 34/135,136,137,166,182,183,187,164,108-110,235 98/55
• US Class Current: 34/187
• CPC Class Codes: F26B 17/12 with movement performed solely by gravity , i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft
• CPC Class Codes: F26B 25/002 for bulk goods F26B17/103 takes precedence

Abstract

An auger exhaust construction for a forced air grain dryer includes a perforated screen positioned about the auger on the interior of the grain bin. A box with exhaust vents to the outside of the grain bin is positioned around the auger and the perforated screen to provide a chamber for receiving exhaust air through the screen and directing that exhaust air to the exterior of the bin through the exhaust vents.

Claims

1. In a bin having fluid flow therethrough, said bin having a material inlet and means for transporting materials through said inlet into said bin, an improved vent construction for said bin comprising, in combination:

an enclosure within said bin, said enclosure having an inlet coinciding with said material inlet, and an outlet into said bin;

a perforated guide passage from said material inlet to said outlet through said enclosure for guiding material therethrough to said bin, said enclosure surrounding said perforated passage and defining a chamber for receipt of fluid from said first enclosure; and

openings from said enclosure to the outside of said bin for venting said chamber.

2. An improved grain dryer vent construction comprising, in combination:

a grain dryer bin having a grain inlet, an auger to feed grain through said inlet into said bin, a perforated screen on the interior of said bin surrounding said auger and extending from said inlet partially into said bin, and an enclosure surrounding said auger and said screen and having an inlet coincident with said grain inlet and an outlet coincident with the interior terminus of said screen, said enclosure including an exhaust opening to the exterior of said bin.

3. The construction of claim 2 wherein said screen includes perforations sized to prevent passage of grain therethrough.

4. The construction of claim 2 wherein the external radius of said auger is substantially the same as the internal radius of said screen.

5. The construction of claim 2 wherein said auger and screen are co-axial and have substantially constant radii along their common axis.