Straw utilization method

A technology of straw and straw fiber, which is applied in the field of comprehensive utilization of straw, can solve the problems of poor granulation effect, unsustainable granulation, and loose combination, etc., and achieves the effects of improved availability, good granulation effect and smooth surface.

Inactive Publication Date: 2017-08-18
合肥市风达农业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the main components of straw are cellulose, hemicellulose and lignin, lignin is a structural monomer with aromatic characteristics and an amorphous substance that exists in the lignified tissue of plants. At the same time, the lignin and cellulose in the straw are not tightly combined, so the granulation effect is not good, and it is easy to appear that there is no granulation or the phenomenon of continuous granulation
At present, there is no suitable molding process for straw granules that can meet the requirements of mechanization, mass production and continuous production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for utilizing straw, comprising the following steps:

[0026] (1) Straw pretreatment: Use a hay cutter to chop the straw raw materials to obtain crushed straw with a length of 12 cm; mix yeast strains, lactobacillus strains and Clostridium butyricum strains, and then add glucose to obtain a mixed bacterial liquid Then mix the crushed straw, the mixed bacterial solution and the synergist, add clear water to make the water content of the system reach 75%, the nitrogen content ratio of the system is 55%, and stir to obtain the fermentation mixture;

[0027] (2) Stacking of fermented straw: spread a layer of straw material with a thickness of 38cm on the fermentation site, then evenly spray a layer of straw fermentation agent, and then place several bamboo poles horizontally and vertically on the stockpile, the length of the bamboo poles should be consistent with the width of the stockpile , keep the distance between bamboo poles at 1.9m, and then spread a layer of...

Embodiment 2

[0034] A method for utilizing straw, comprising the following steps:

[0035] (1) Straw pretreatment: use a hay cutter to chop the straw raw materials to obtain crushed straw with a length of 13 cm; mix yeast strains, lactobacillus strains and Clostridium butyricum strains, and then add glucose to obtain a mixed bacterial liquid Then mix the crushed straw, the mixed bacterial solution and the synergist, add clear water to make the water content of the system reach 78%, and the nitrogen content ratio of the system is 60%, and stir to obtain the fermentation mixture;

[0036] (2) Stacking of fermented straw: spread a layer of straw material with a thickness of 45cm on the fermentation site, then evenly spray a layer of straw fermentation agent, and then place several bamboo poles horizontally and vertically on the stockpile. The length of the bamboo poles should be consistent with the width of the stockpile. , the bamboo poles should be placed at a distance of 2.0m, and then spr...

Embodiment 3

[0043] A method for utilizing straw, comprising the following steps:

[0044] (1) Straw pretreatment: Use a hay cutter to chop the straw raw materials to obtain crushed straw with a length of 10 cm; mix yeast strains, lactobacillus strains and Clostridium butyricum strains, and then add glucose to obtain a mixed bacterial solution Then mix the crushed straw, the mixed bacterial liquid and the synergist, add clear water to make the water content of the system reach 74%, and the nitrogen content ratio of the system is 62%, and the fermentation mixture is obtained after stirring;

[0045] (2) Stacking of fermented straw: spread a layer of straw material with a thickness of 50cm on the fermentation site, then evenly spray a layer of straw fermentation agent, and then place several bamboo poles horizontally and vertically on the stockpile. The length of the bamboo poles should be consistent with the width of the stockpile. , the bamboo poles should be placed at a distance of 2.2m, ...

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Abstract

The invention discloses a straw utilization method. The utilization method comprises the following steps that firstly, straw is pretreated, wherein straw raw materials are cut up, the cut straw, a mixed bacteria solution and a synergist are mixed, clear water is added, and a ferment mixture is obtained after uniform stirring; secondly, the ferment straw is stacked; thirdly, the straw is fermented; fourthly, drying and crushing are conducted; fifthly, granulation is conducted, wherein straw fibers are conveyed into a hoop standard granulator, compression formation is conducted by means of circular dies and compression rollers, and rod-like straw particles are obtained; sixthly, cooling formation is conducted, wherein the compressed straw particles are fed into a cooling machine, and smoothly formed particles are obtained. According to the straw utilization method, the fermented straw can be directly used for production of fodder, methane fermentation, organic fertilizers and poultry feed, through the processes of drying and crushing, granulation and cooling formation, the surfaces of the straw particles are smooth and free of obvious cracks, the straw particles can be used as clean biomass combustion energy, and the utilization method is suitable for large-scale application and popularization.

Description

technical field [0001] The invention relates to the technical field of straw comprehensive utilization, in particular to a straw utilization method. Background technique [0002] In recent years, crop straw has become a new source of rural non-point source pollution. Every year during summer harvest and autumn and winter, a large amount of wheat, corn and other stalks are always burned in the fields, producing a lot of thick smoke, which not only becomes the bottleneck of rural environmental protection, but even becomes the chief culprit that affects the urban environment. At present, my country has found a variety of uses for the comprehensive development and utilization of crop straws. In addition to the traditional straw crushing and returning to the field as organic fertilizers, it has also found new ways such as straw feed, straw vaporization, straw power generation, straw ethanol, and straw building materials. The utilization value and utilization rate of straw. [00...

Claims

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Application Information

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IPC IPC(8): C10L5/44C12P5/02C12N1/22
CPCC10L5/445C10L2290/26C12N1/22C12P5/023C12P2203/00Y02E50/10Y02E50/30
Inventor 胡贤根
Owner 合肥市风达农业有限责任公司
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