Hybrid separation

Patent metadata

Field	Value
Publication number	US-10774303-B2
Application number	US-201615187563-A
Country	US
Kind code	B2
Filing date	Jun 20, 2016
Priority date	Sep 17, 2012
Publication date	Sep 15, 2020
Grant date	Sep 15, 2020

Abstract

This disclosure describes techniques for using a single feedstock of barley to produce a fermented product and a method for filtering a large-particles stream from a liquid stream containing small particles of a process stream using a series of mechanical separation devices to increase yield.

First claim

What is claimed is:

1. A feedstock separation method in a production facility, the method comprising:
receiving a feedstock mixed with water to form a slurry in a tank;
filtering the slurry as a process stream to create a large-particles stream and a liquids stream containing small particles by using a multi-zoned screening apparatus, the multi-zoned screening apparatus having a first zone and a second zone situated directly adjacent to one another, and separate outlets for each of the large-particles stream and the liquids stream containing small particles;
moving the process stream in the multi-zoned screening apparatus through the first zone and the adjacent second zone via a conveyor that rotates relative to an immovable screen to direct the process stream toward the immovable screen to filter the liquids stream containing small particles from the large-particles stream, the first zone receiving the process stream and providing separation of the liquids stream containing small particles from the large-particles stream using counter-flow washing, and the second zone washing the large-particles stream with water;
sending the liquids stream containing small particles from the multi-zoned screening apparatus to a water makeup process;
sending the large-particles stream via the conveyor from the multi-zoned screening apparatus to be gravity fed to a roller mill;
shearing and compressing large particles present in the large-particles stream with rollers in the roller mill to provide a sheared and compressed large-particles stream;
mixing the sheared and compressed large-particles stream in another tank with a liquid to create a mixture; and
sending the mixture through a rotary press to separate remaining insolubles from another liquids stream.

2. The method of claim 1 , wherein the slurry comprises about 15% to about 44% solids.

3. The method of claim 1 , wherein the feedstock comprises at least one of corn, milo, barley, or sorghum grain.

4. The method of claim 1 , further comprising sending the another liquids stream to be mixed in at least one of a slurry tank, a liquefaction tank, or a water makeup process.

5. The method of claim 1 , further comprising at least one of:
sending the insolubles to be mixed with wet cake to produce wet animal feed;
sending the insolubles to be partial-dried to produce partial-dried animal feed; or
sending the insolubles to be dried to produce full-dried animal feed.

6. The method of claim 1 , wherein the insolubles comprise at least one or more of fiber, nonfermentables, germ, and grit.

7. A process stream separation method in a production facility, the method comprising:
filtering a process stream to create a large-particles stream and a liquids stream containing small particles by using a multi-zoned screening apparatus, the multi-zoned screening apparatus having a first zone and a second zone situated directly adjacent to one another, and separate outlets for each of the large-particles stream and the liquids stream containing small particles;
moving the process stream in the multi-zoned screening apparatus through the first zone and the adjacent second zone via a conveyor that rotates relative to an immovable screen to direct the process stream toward the immovable screen to filter the liquids stream containing small particles from the large-particles stream, the first zone receiving the process stream and providing separation of the liquids stream containing small particles from the large-particles stream using counter-flow washing, and the second zone washing the large-particles stream with water to separate starch or gluten from the large-particles stream;
sending a portion of the large-particles stream from the second zone of the multi-zoned screening apparatus to a roller mill;
shearing and compressing the large-particles stream through rollers in the roller mill;
mixing the sheared and compressed large-particles stream in a tank with a liquid to create a mixture; and
sending the mixture through a rotary press to separate remaining insolubles from another liquids stream.

8. The method of claim 7 , further comprising sending the another liquids stream to be mixed in at least one of a slurry tank, a liquefaction tank, or a water makeup process.

9. The method of claim 7 , wherein the rotary press removes moisture from the mixture, the mixture having up to 64% moisture content after being sent through the rotary press.

10. The method of claim 7 , wherein the multi-zoned screening apparatus comprises at least one of a paddle screen, a filtration centrifuge, or a pressure screen.

Assignees

• Icm Inc

Inventors

• Dieker Kurt A
• Gallop Charles C
• Kohl Scott D
• Tjaden Keith
• Mcmillen Justin

Classifications

• C12P19/14

  produced by the action of a carbohydrase {(EC 3.2.x)}, e.g. by alpha-amylase {, e.g. by cellulase, hemicellulase} · CPC title

• C12M45/04

  Phase separators; Separation of non fermentable material; Fractionation · CPC title

• C12P7/10

  substrate containing cellulosic material · CPC title

• C12M47/10 Primary

  Separation or concentration of fermentation products (bioreactors combined with means for distillation or extraction of liquid fuel C12M43/02) · CPC title

• C12M43/02

  Bioreactors or fermenters combined with devices for liquid fuel extraction; Biorefineries · CPC title