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Straw resource utilization method

A straw resource and straw technology, which is applied in the field of straw resource utilization, can solve the problems of ecological environment damage, low utilization rate of straw, waste of straw resources, etc.

Inactive Publication Date: 2016-07-20
SICHUAN CHAOSEN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The utilization rate of crop straw in my country is relatively low, and most of the straw resources are wasted or burned on the spot, causing serious damage to the ecological environment

Method used

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  • Straw resource utilization method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1 A method for comprehensive utilization of straw resources

[0011] Put the straw raw material into a 5% NaOH solution at 100 degrees Celsius and cook for more than 4 hours, filter out the straw fiber, and convert the remaining mother liquor into fertilizer by adjusting the pH value and fermenting the bacteria group, and crush the straw fiber through a pulverizer to make pulp, and then pass through Appropriate washing, screening, impurity removal, bleaching, drying and other series of processes can meet the quality requirements of different paper types.

Embodiment 2

[0012] Embodiment 2 A method for comprehensive utilization of straw resources

[0013] Put the straw raw material into a 5% NaOH solution at 100 degrees Celsius and cook for half an hour, filter out the straw fiber, and convert the remaining mother liquor into fertilizer by adjusting the pH value and fermenting the bacteria group, and crush the straw fiber with a binder, The combustion aid is mixed and molded, and put into a high-temperature kiln for carbonization and firing. Straw fiber powder can also be mixed with dry sawdust with high carbon content, mixed with adhesives and combustion enhancers, and then carbonized.

Embodiment 3

[0014] Embodiment 3 A method for comprehensive utilization of straw resources

[0015] Put the straw raw material into a 5% NaOH solution at 100 degrees Celsius and cook for half an hour, filter out the straw fiber, and convert the remaining mother liquor into fertilizer by adjusting the pH value and fermentation of the bacteria group, and mix it with the mortar matrix with the appropriate fiber length and fiber content Composite under the action of solid dispersants such as polyethylene glycol, complete the hydration process, and produce the required new straw fiber building materials, such as: straw fiber prefabricated panels, straw fiber concrete, etc.

[0016] The beneficial effects of the invention are: a method for utilizing straw resources has the advantage of fully utilizing the straw resources, and at the same time, the invention discharges polluted waste during the production process.

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Abstract

The invention discloses a straw resource utilization method. The method is characterized by utilizing crop straws as raw materials to prepare straw fibers and straw fertilizer mother liquor through hydrolysis in an alkaline water bath environment, wherein the straw fertilizer mother liquor is alkaline; the straw fibers can serve as the preparation raw materials of straw paper, straw charcoal and straw fiber cement-based composite materials. After subjected to water bath treatment in an alkaline solution, the straw fibers have higher contents and are more suitable for the fields of straw papermaking, straw fiber composite materials and straw charcoal than the straw raw materials. The crop straws need to be cleaned and dried by natural exposure or artificial heating to reduce the moisture and the content of acidic materials and facilitate transportation. The straw fertilizer mother liquor contains plenty of lignin, hemicellulose, nitrogen and phosphorus compounds, and the like and can be fermented into the straw chemical fertilizer by the microbial floras, such as actinomycetes, saccharomycetes and bacteria after the PH value is regulated to alkalescence. The method for fully utilizing straw resources, which is provided by the invention, avoids polluting waste discharge and has the advantages of environmental protection, resource saving, and the like.

Description

technical field [0001] The invention relates to the field of resource utilization, in particular to a method for utilizing straw resources. Background technique [0002] The utilization rate of crop straw in our country is relatively low, and most of the straw resources are wasted or burned on the spot, causing serious damage to the ecological environment. Straw is a renewable biomass resource, which contains a large amount of plant fiber and nitrogen and phosphorus compounds. Plant fibers have high carbon content, have similar strength and low density to ordinary synthetic fibers, and can be used as raw materials for papermaking, carbon making, and fiber building materials. Nitrogen and phosphorus fertilizers are common chemical fertilizers in agricultural production. Therefore, the scientific and comprehensive utilization of straw resources, the extraction of plant fibers and the production of chemical fertilizers are of great significance to the sustainable development ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F11/00C05F17/00C04B18/24C04B20/02C04B35/52C04B35/622D21H11/12
CPCC04B20/023C04B35/52C04B35/622C05F11/00C05F17/00D21H11/12C05F11/08C04B18/24Y02W30/40Y02W30/91
Inventor 张书郑继鹏王城城
Owner SICHUAN CHAOSEN TECH CO LTD