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Method for comprehensive utilization of corn straws

A corn stalk and straw crushing technology, which is applied in the energy field, can solve problems such as poor palatability, high water content, and easy corruption, and achieve the effects of increasing added value, reducing production costs, and solving air pollution

Inactive Publication Date: 2014-02-12
QINGDAO JIENENG ENERGY SAVING ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As far as herbivores are concerned, the net energy gain of 2kg of corn stalks is equivalent to 1kg of corn kernels. However, due to the high water content of freshly harvested corn stalks, they are easy to rot, and they are directly fed to livestock, and their palatability is poor. wasted

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The present invention is specifically described below in conjunction with embodiment:

[0017] (1) Straw crushing: crush the harvested corn stalks into slag with a length of about 1 cm;

[0018] (2) Decompose cellulose: Add Cellulomonas luteogenes to the crushed corn crumbs, mix evenly and stir continuously, spray water during the stirring process, keep the temperature at 25-40°C, and keep warm for 2 days;

[0019] (3) Separation: wash and filter the decomposed corn stalks;

[0020] (4) Liquid fermentation and distillation: pour the filtrate into a fermenter, add Saccharomyces cerevisiae for fermentation, keep warm at 30-38°C, and after 2 days, put the fermented liquid into a rectification tower to distill to obtain alcohol;

[0021] (5) Preparation of feed from filter residue: add soybean meal with 2% weight of filter residue to the filtered filter residue, dry, prepare granular feed with a feed molding machine, and pack.

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PUM

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Abstract

The invention provides a method for comprehensive utilization of corn straws, which comprises the following steps: 1. crushing harvested corn straws with a crusher; 2. adding cellulose-decomposing bacteria into the crushed corn straws, well mixing, sprinkling water while stirring, keeping the temperature to be 25-40 DEG C for 2 days; 3. rinsing and filtering the decomposed corn straws; injecting the filtrate into a fermentation tank, adding activated yeast, performing fermentation, keeping the temperature to be 30-38 DEG C for 2 days, distilling the fermented liquid in a rectifying tower to obtain alcohol; 4. preparing feed by filter residues, that is, drying the filtered filter residues, adding an additive, preparing granular feed by a feed forming machine, and packaging. According to the invention, the filtrate obtained by corn straw decomposition is used for alcohol fermentation, which alleviates the stress of energy resource shortage; the filter residues are used for producing feed, which reduces feed production cost, and overcomes the disadvantages of mildewing and poor palatability when corn straws are traditionally used for cattle feeding.

Description

technical field [0001] The invention relates to the field of energy, in particular to a method for comprehensive utilization of corn stalks. Background technique [0002] my country is a large agricultural country with rich fiber resources of various crops. Straw alone has more than 700 million tons, of which more than 200 million tons are corn stalks. These resources have not been rationally developed and utilized for a long time, and most of the straw resources have been burned. , resulting in new air pollution. [0003] Corn stover contains more than 30% carbohydrates, 2-4% protein and 0.5-1% fat. As far as herbivores are concerned, the net energy gain of 2kg of corn stalks is equivalent to 1kg of corn kernels. However, due to the high water content of freshly harvested corn stalks, they are easy to rot, and they are directly fed to livestock, and their palatability is poor. wasted. If the corn stalks can be finely processed and made into high-nutrition livestock feed, ...

Claims

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Application Information

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IPC IPC(8): C12P7/10A23K1/06C12R1/865C12R1/01A23K10/38
CPCY02E50/16Y02E50/10Y02P60/87
Inventor 董承来刘晓娜
Owner QINGDAO JIENENG ENERGY SAVING ENVIRONMENTAL PROTECTION TECH