Method for preparing feed from by-product rapeseed cakes after rapeseed oil expression

Abstract

The invention provides a method for preparing feed from by-product rapeseed cakes after rapeseed oil expression. A limiting cylinder, a water injection unit, a feeding stirring unit and the like are matched to complete preparation of the rapeseed cake feed. The main difficult problems that as for existing rapeseed cake feed, in the stirring process of a mixture, a: the rapeseed cakes are blocky coagulations after pressing, and in the stirring process, the blocky coagulations are difficult to crush and are fully evenly mixed with auxiliary materials such as corn flour, wheat bran and a leavening agent difficultly; and b: as for existing stirring, the rapeseed cakes, the corn flour and the like are mixed in a concentrated mode and stirred by adding water, stirring by adding the water is prone to being uneven, the water is difficultly absorbed by the rapeseed cakes, the corn flour and the like, consequently, the caking phenomenon is prone to being caused, and the production quality of therapeseed cakes is affected are solved.

Description

technical field [0001] The invention relates to the technical field of feed processing, in particular to a method for preparing feed from rapeseed cake, a by-product of rapeseed oil extraction. Background technique [0002] my country is a big rapeseed country, with the planting area and output ranking first in the world. The protein and fat content of rapeseed is very high, among which the protein accounts for 25-45%, and the fat content accounts for 30-50%. It is one of the most important sources of vegetable oil and feed protein in my country. Rapeseed meal / cake is a by-product of rapeseed oil extraction, with high protein content, up to 36%-50%, and only 1.5-5% fat content. It is mainly used as protein resource for feed in animal husbandry production. [0003] Rapeseed cake needs to be added with auxiliary materials such as corn flour, wheat bran and starter and fully stirred during the feed preparation process, but the existing rapeseed cake feed mainly has the followi...

AI Technical Summary

Problems solved by technology

[0003] Rapeseed cake needs to be added with auxiliary materials such as corn flour, wheat bran and starter and fully stirred during the feed preparation process, but the existing rapeseed cake feed mainly has the following problems in the process of mixing the mixture: a: rapeseed After pressing, the cakes are lumpy coagulums, which are difficult to crush during the stirring process, and the lumps are difficult to fully mix with auxiliary materials such as corn flour, wheat bran and leavening agent; b: the existing stirring is to mix the rapeseed cake , corn flour, etc. are concentratedly mixed with water and stirred, which will easily lead to uneven mixing of water; it is difficult for water to fully absorb with rapeseed cake, corn flour, etc., and it is easy to cause agglomeration; affect the production quality of rapeseed cake

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