Process and apparatus for orienting bast stalks for decortication

• US 8,475,628 B1
• Filed: 03/29/2011
• Issued: 07/02/2013
• Est. Priority Date: 03/29/2011
• Status: Active Grant

• Current Assignee: HBI Branded Apparel Enterprises LLC (Hanesbrands Incorporated)
• Original Assignee: HBI Branded Apparel Enterprises LLC (Hanesbrands Incorporated)
• Inventors: Abbott, Michael D., Miller, Robert A.
• Primary Examiner(s): Halpern, Mark
• Application Number:
  US13/074,665
• Time in Patent Office: 826 Days
• Field of Search: 162/98, 162/21, 162/28, 162/286, 162/272, 162/48, 162/99, 162/150, 156/512, 144/357, 561/31
• US Class Current: 162/98
• CPC Class Codes: D01B 1/00 Mechanical separation of fibres from plant material, e.g. seeds, leaves, stalks

Abstract

A process and apparatus for orienting a plurality of bast stalks for decortication includes receiving a plurality of harvested bast stalks onto a moving belt. The belt has a longitudinal axis in the direction the belt is moving. The process and apparatus orients a substantial portion of the plurality of harvested bast stalks on the belt so that the harvested bast stalks are generally parallel to the longitudinal axis of the belt. The oriented plurality of bast stalks may be collected for decortication.

Claims

1. A process for orienting a plurality of bast stalks for decortication, the process comprising:

a. receiving a plurality of harvested bast stalks onto a moving belt, the belt having a longitudinal axis in the direction the belt is moving;

b. orienting a substantial portion of the plurality of harvested bast stalks on the belt so that the harvested bast stalks are generally parallel to the longitudinal axis of the belt; and

c. collecting the oriented plurality of bast stalks for decortication.

2. The process of claim 1, wherein the step of orienting further comprises passing the plurality of harvested bast stalks under at least one bar that is elevated above the belt, the at least one bar having a plurality of downwardly extending tines, wherein the at least one bar oscillates across the longitudinal axis of the belt.

3. The process of claim 1, wherein the step of orienting further comprises transporting the plurality of harvested bast stalks on the belt through a chamber.

4. The process of claim 3, wherein the step of transporting further comprises directing at least a portion of the harvested stalks through the chamber, the chamber having an inlet end and outlet end, the inlet end comprising a plurality of ports having on either side walls for directing the portion of the harvested stalks through the ports.

5. The process of claim 4, wherein the step of directing further comprises partially orienting and separating the plurality of harvested bast stalks via the inlet end.

6. The process of claim 5, wherein the step of decorticating further comprises treating the bast stalks with an enzyme.

7. The process of claim 1, wherein the belt comprises a first portion and a second portion, the second portion having speed greater than the first portion so that when the bast stalks pass from the first portion to the second portion, the plurality of bast stalks partially separate from each other.

8. The process of claim 1, further comprising decorticating the bast stalks.

9. The process of claim 1, wherein the step of receiving further comprises receiving the bast stalks from a round bale of harvested bast stalks.

10. The process of claim 9, wherein the step of receiving further comprises unwrapping the round bale of harvested bast stalk onto a transfer belt.

11. The process of claim 10, wherein the step at receiving further comprises transferring the harvested bast stalks onto a transfer belt.

12. A process for orienting a plurality of bast stalks for decortication, the process comprising:

a. receiving a plurality of harvested bast stalks onto a moving belt, the belt having a longitudinal axis in the direction the belt is moving;

b. orienting a substantial portion of the plurality of harvested bast stalks on the belt by passing the plurality of harvested bast stalks under at least one bar that is elevated above the belt, the at least one bar having a plurality of downwardly extending tines, wherein the at least one bar oscillates across the longitudinal axis of the belt to orient the harvested bast stalks generally parallel to the longitudinal axis of the belt; and

c. collecting the oriented plurality of bast stalks for decortication.

13. The process of claim 12, wherein the step of orienting further comprises transporting the plurality of harvested bast stalks on the belt through a chamber.

14. The process of claim 12, wherein the step of transporting further comprises directing at least a portion of the harvested stalks through the chamber, the chamber having an inlet end and an outlet end, the inlet end comprising a plurality of ports having on either side walls for directing the portion of the harvested stalks through the ports.

15. The process of claim 12, wherein the step of directing further comprises partially orienting and separating the plurality of harvested bast stalks via the inlet end.

16. The process of claim 15, wherein the step of decorticating further comprises treating the bast stalks with an enzyme.

17. The process of claim 12, wherein the belt comprises a first portion and a second portion, the second portion having speed greater than the first portion so that when the bast stalks pass from the first portion to the second portion, the plurality of bast stalks partially separate.

18. The process of claim 12, further comprising decorticating the bast stalks.

19. The process of claim 12, wherein the step of receiving step further comprises receiving the bast stalks from a round bale of harvested bast stalks.

20. The process of claim 19, wherein the step of receiving further comprises unwrapping the round bale of harvested bast stalk onto a transfer belt.

21. The process of claim 20, wherein the step of receiving further comprises transferring the harvested bast stalks onto a transfer belt.