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DDGS feed drying device and method

A drying device, DDGS technology, applied in drying, feed, dryer and other directions, can solve problems such as poor quality of feed products, save energy, reduce steam consumption, and improve feed drying efficiency.

Pending Publication Date: 2021-11-23
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a DDGS feed drying device and method to solve the problem of poor quality feed products produced by the DDGS feed production process in the prior art

Method used

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  • DDGS feed drying device and method

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Experimental program
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Effect test

Embodiment 1

[0037] The 80°C waste mash 10 liquid from the alcohol factory is separated into wet grains 20 and centrifugal supernatant 30 through a centrifuge at 3000r / min. The water content in the wet grains 20 is 60%, and the water content in the centrifugal supernatant 30 is 4.5%. The centrifugal supernatant liquid 30 is concentrated by high temperature evaporation to become a concentrated liquid 40, the water content in the concentrated liquid 40 is 64%, the temperature of the mixed material 50 after mixing the wet grains 20 and the concentrated liquid 40 is 72°C, and the water content is 62%. The material 50 enters the shell side of the first dryer 60 at the same time, the temperature of the air entering the first dryer 60 is 25°C, the temperature of the air leaving the first dryer 60 is 93°C, and the steam enters the first dryer 60 The tube side, the steam temperature is 125°C, the pressure is 0.35MPa, the mixed material 50 is dried in the first dryer 60 until the moisture content is ...

Embodiment 2

[0039] The 85°C waste mash 10 liquid from the alcohol factory is separated into wet grains 20 and centrifugal supernatant 30 through a centrifuge at 3000r / min. The water content in the wet grains 20 is 65%, and the water content in the centrifugal supernatant 30 is 5.6%. The centrifugal supernatant liquid 30 is concentrated by high temperature evaporation to become a concentrated liquid 40, the water content in the concentrated liquid 40 is 67%, the temperature of the mixed material 50 after mixing the wet grains 20 and the concentrated liquid 40 is 75°C, and the water content is 66%. The material 50 enters the shell side of the first dryer 60 at the same time, the temperature of the air entering the first dryer 60 is 28°C, the temperature of the air leaving the first dryer 60 is 98°C, and the steam enters the first dryer 60 tube side, the steam temperature is 130°C, the pressure is 0.45MPa, the mixed material 50 is dried in the first dryer 60 until the moisture content is 18%,...

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Abstract

The invention provides a DDGS feed drying device and method. The DDGS feed drying device comprises a centrifugal machine, and the centrifugal machine is used for separating introduced waste mash into wet grains and centrifugal clear liquid; a thickener, which is communicated with the clear liquid outlet of the centrifugal machine and is used for concentrating the centrifugal clear liquid into concentrated liquid; a first drying machine, which is communicated with the centrifugal machine and the thickener, a mixed material formed by mixing the wet grains and the concentrated solution is introduced into a shell pass of the first drying machine, steam enters a tube pass of the first drying machine, and the first drying machine is used for drying the mixed material at high temperature and drying the mixed material until the moisture content is 18%-25%; and a second drying machine, which is communicated with the first drying machine, the mixed material dried by the first drying machine is introduced into the second drying machine, and the second drying machine is used for carrying out low-temperature drying on moisture in the mixed material and drying the mixed material until the moisture content is 11%-12%. The problem that feed products produced by a DDGS feed production process in the prior art are poor in quality is solved.

Description

technical field [0001] The invention relates to the technical field of DDGS feed production, in particular to a DDGS feed drying device and method. Background technique [0002] Alcohol production in alcohol factories usually uses corn and other raw materials for liquid fermentation, starch is converted into ethanol and carbon dioxide, and other nutrients such as protein, fat, fiber, etc. are left in the mash. At the same time, due to the action of microorganisms, the content of protein, B vitamins and amino acids in the mash is increased compared with that of corn, and it contains unknown growth-promoting factors generated during fermentation, so it is a good protein feed. [0003] DDGS (full name: Distillers Dried Grains with Solubles) is a feed obtained by drying and concentrating the filtrate and then mixing it with the filter residue. Since the protein content of DDGS is more than 26%, it has become a new type of protein feed material widely used by feed manufacturers....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23N17/00A23K10/38F26B21/14F26B21/00F28D7/00
CPCA23N17/00A23K10/38F26B21/14F26B21/002F28D7/00Y02P60/87
Inventor 惠继星岳军宁艳春王硕陈希海屈海峰岳春雨胡世洋
Owner PETROCHINA CO LTD
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