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A method of corn pretreatment and a method of using corn to prepare feed

A pretreatment and corn technology, applied in animal feed, grain treatment, animal feed, etc., can solve the problems of high toxin content and difficulty in ensuring the quality and safety of feed products

Active Publication Date: 2017-08-25
COFCO BIOTECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the content of toxins in DDGS feed produced by traditional methods is relatively high, and it is difficult to ensure the quality and safety of feed products

Method used

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  • A method of corn pretreatment and a method of using corn to prepare feed
  • A method of corn pretreatment and a method of using corn to prepare feed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] (1) Take 500 tons of corn kernels from the Northeast, and introduce them into the double-layer cylindrical sieve for screening and removal of impurities. Among them, based on the material volume of the double-layer cylindrical sieve per cubic meter, the corn kernels are placed in the double-layer cylindrical sieve The feed rate in the sieve is 100 tons / hour, the rotating speed of the double-layer cylindrical sieve is 18 rpm, and the screening time is 0.2 hours. Obtained corn kernels.

[0057] (2) Introduce the impurity-removed corn kernels obtained in step (1) into a vibrating sieve to screen and remove damaged kernels, wherein, based on the material volume of the vibrating sieve per cubic meter, the feed amount of corn kernels in the vibrating sieve The vibration frequency of the vibrating screen is 2800 Hz, the amplitude is 7 mm, and the diameter of the lower screen mesh is 7 mm. The screening time was 0.3 hours. Obtain corn kernels and undersieves from which broken...

Embodiment 2

[0060] (1) Take 500 tons of corn kernels from the Northeast, and introduce them into the double-layer cylindrical sieve for screening and removal of impurities. Among them, based on the material volume of the double-layer cylindrical sieve per cubic meter, the corn kernels are placed in the double-layer cylindrical sieve The feed rate in the sieve is 90 t / h, and the double-deck drum sieve rotates at 15 rpm. The screening time was 0.3 hours. Obtained corn kernels.

[0061] (2) Introduce the impurity-removed corn kernels obtained in step (1) into a vibrating sieve to screen and remove damaged kernels, wherein, based on the material volume of the vibrating sieve per cubic meter, the feed of corn kernels in the vibrating sieve The capacity is 4 tons per hour, the vibration frequency of the vibrating screen is 2700Hz, the amplitude is 5.5 mm, and the mesh diameter of the lower screen is 6 mm. The screening time was 0.5 hours. Obtain corn kernels and undersieves from which broken...

Embodiment 3

[0064] (1) Take 500 tons of corn kernels from the Northeast, and introduce them into the double-layer cylindrical sieve for screening and removal of impurities. Among them, based on the material volume of the double-layer cylindrical sieve per cubic meter, the corn kernels are placed in the double-layer cylindrical sieve The feed rate in the sieve was 110 t / h, and the rotational speed of the double-deck drum sieve was 20 rpm. The screening time was 0.25 hours. Obtained corn kernels.

[0065] (2) Introduce the impurity-removed corn kernels obtained in step (1) into a vibrating sieve to screen and remove damaged kernels, wherein, based on the material volume of the vibrating sieve per cubic meter, the feed of corn kernels in the vibrating sieve The capacity is 5 tons per hour, the vibration frequency of the vibrating screen is 2900Hz, the amplitude is 8 mm, and the diameter of the screen mesh of the lower layer is 8 mm. The screening time was 0.4 hours. Obtain corn kernels an...

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Abstract

The invention discloses a corn pretreatment method, wherein the method comprises: removing impurities from the corn grains to be treated in a rotary screening device; taking the material volume of the rotary screening equipment per cubic meter as a benchmark, The feed rate in the rotary screening device is 80-120 t / h, and the rotating speed of the rotary screening device is 12-20 rpm. The present invention also provides a method for preparing feed from corn, the method comprising: pretreating corn and degerming to obtain germ and corn flour, using germ meal obtained after the germ is processed into oil, and fermenting the corn flour The waste mash obtained after producing alcohol and distilling the alcohol is prepared from the clear liquid and residue obtained after solid-liquid separation; wherein, the method for corn pretreatment is the method provided by the present invention. The toxin contained in the feed finally obtained by adopting the technical scheme of the invention is significantly reduced.

Description

technical field [0001] The invention relates to a method for pretreatment of corn and a method for preparing feed by using corn, in particular to a method for pretreatment of corn and a method for preparing feed by using the pretreated corn. Background technique [0002] In northern China, corn has a wide sown area and high yield. It has become an important raw material for breeding, chemical industry, medicine, food, etc., and corn is also known as the "king of feed". [0003] The by-products obtained after deep processing of corn into crude oil and alcohol are important materials for the preparation of corn feed (DDGS). The traditional method of producing DDGS feed is usually as follows: corn is removed from impurities and degermed to obtain germ and corn flour, the germ is processed into crude oil to obtain by-product germ meal, corn flour is alcohol-fermented and alcohol is distilled to obtain waste mash, and the waste mash is obtained After the solid-liquid separation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02B1/02B07B1/22B07B1/28A23K10/30
Inventor 周勇熊结青陈影沈爱芳
Owner COFCO BIOTECHNOLOGY CO LTD
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