System for and method of making four types of animal feeds from grains that are used in the alcohol production plant

A method of producing animal feed using a whole stillage in a dry milling process comprising:

• a) performing liquefying on a ground meal;
• b) performing fermenting on the liquefied ground meal after the liquefying;
• c) performing distilling generating the whole stillage after the fermenting;
• d) after distilling, separating the whole stillage into three portions having a solid portion, a slurry portion, and a liquid portion;
• e) selective milling the solid portion forming a selective milled content;
• f) performing fiber washing the selective milled content;
• and
• g) producing a first animal feed, by using the selective milled content as a feedstock.

A method of producing animal feed using a whole stillage in a dry milling process comprising:

• a) performing liquefying on a ground meal;
• b) performing fermenting on the liquefied ground meal after the liquefying;
• c) performing distilling generating the whole stillage after the fermenting;
• d) after distilling, performing a selective size separation, based on a size of particles, separating the whole stillage into three streams;
• e) forming a first animal feed having a content >50% of fiber and less than 20% of protein, by using a content material of the first stream as a feedstock, suitable for ruminant animals;
• f) forming a second animal feed having 40%-45% of protein and less than 4% of oil, by using a content material of the second stream as a feedstock, suitable for chicken and pigs;
• and
• g) forming a third animal feed having 40%-45% of protein and less than 4% of oil, by using a content material of the third stream as a feedstock, suitable for fish and pet.

A method of producing animal feed using a whole stillage in a dry milling process comprising:

• a) performing liquefying on a ground meal;
• b) performing fermenting on the liquefied ground meal after the liquefying;
• c) performing distilling generating the whole stillage after the fermenting;
• and
• d) after the distilling, performing a separating process of the whole stillage into at least a first and a second streams, wherein the separating process comprises a three sectional separating device having a first and a second screen filtrations in a first and a second sections and a decanter in the third section.