Preparation method of raw material of wheat straw fiber artificial board
A technology for wood-based panels and wheat straw, which is applied to flat products, manufacturing tools, household components, etc., can solve problems such as increasing farmers' income, and achieve the effects of increasing farmers' income, novel and scientific ideas, and simple and easy processes.
Inactive Publication Date: 2009-04-08
NORTHERN HEAVY IND GRP CO LTD
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Problems solved by technology
[0003] The purpose of the present invention is to provide a new and scientific concept, easy manufacturing process, solve the bottleneck of wheat straw fiberboard production, efficiently utilize agricultural residue straw resources, solve the problem of difficult operation caused by the shortage of timber resources for enterprises, and increase the number of farmers. Income, has far-reaching significance to the construction of a new socialist countryside, has huge social benefits, and meets the requirements of building a conservation-minded society, circular economy and sustainable development. The raw material preparation method of wheat straw fiber-based panels
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0007] The wheat straw is cut into 40-50mm grass sections by the grass cutter, sent to the re-crusher through the air delivery system, and the moisture content of the grass section is reduced to 20%-30% by hot steam, and the temperature is 70-80°C, and it is ground into fibers The crushed material is then passed through the sorting machine, and the large material is returned to the crusher for grinding. The wheat straw fibers that meet the process requirements are sent to the drying pipeline for drying by hot air; Technology, without heat grinding, separates wheat straw fibers under normal conditions; the technical indicators of making wheat straw fiber-based panels are: finished board density: 0.75g / cm3; static bending strength: 28.3Mpa; internal bonding strength: 0.52Mpa; 2 hours water absorption thickness Expansion rate: 10.3%, reaching the quality standard of GB / T11718-1999 medium density fiberboard.
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Abstract
A process for preparing the raw materials of artificial fibrous board includes such steps as cutting wheat straw to become segments (40-50 mm), applying overheat steam to make its water content to be 20-30% and its temp to be 70-80 deg.C, grinding to become fibrous broken material, and separating.
Description
Technical field: [0001] The invention relates to a raw material preparation method for manufacturing artificial boards by using wheat straw fiber raw materials in the field of wood-based board industry. The main raw material selected for the wheat straw fiber-based panel is wheat straw, and the wheat straw fiber is prepared by heating and humidifying-grinding-sorting-grinding process. Background technique: [0002] At present, the raw materials of plant fiber-based panels in the field of wood-based panel industry at home and abroad have been mainly relying on forest resources for a long time. Wooden raw materials are used to make fiberboards. The traditional method of preparing materials is to decompose wood chips into wood fibers with a heat mill using high temperature and high pressure. my country's forest resources are seriously insufficient and the ecological environment is severe. At the same time, my country is a large agricultural country with abundant agricultural ...
Claims
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IPC IPC(8): B27L11/08B27N3/04
Inventor 赵凯军盛振湘关丽丽李龙刘华杨洋
Owner NORTHERN HEAVY IND GRP CO LTD