西部林业科学
西部林業科學
서부임업과학
JOURNAL OF WEST CHINA FORESTRY SCIENCE
2015年
2期
54-58,62
,共6页
微纳米木粉%试验制备%分离性能%粉体颗粒%落叶松
微納米木粉%試驗製備%分離性能%粉體顆粒%落葉鬆
미납미목분%시험제비%분리성능%분체과립%락협송
micro nano wood powder%test preparation%separation performance%powder particles%Larix gmelinii
在微纳米木粉的试验制备过程中以落叶松锯屑为加工原料,以预期加工的微纳米木粉颗粒粒径为试验加工目的,将试验设备中的磨盘砥石作为加工的核心部件,对木材强韧性纤维类材料施加强剪切力和研磨力,以保证微纳米木粉的成功制备。采用“平衡轨道”模型对制备的微纳米木粉进行分离,并对不同粒径的木粉利用CFD原理进行两相流流体场内的分离模拟,以保证在实践加工中不同粒径的木粉能够顺利地进行分离分级。最后,将分离收集到的不同粒径的木粉样品进行物理性质的研究。试验结果表明,本试验的微纳米木粉制备系统能够分离出预期的木粉粒径,且随着木粉粒径的不断减小,木粉的颜色、密度、团聚性和附着性都将随之增加。
在微納米木粉的試驗製備過程中以落葉鬆鋸屑為加工原料,以預期加工的微納米木粉顆粒粒徑為試驗加工目的,將試驗設備中的磨盤砥石作為加工的覈心部件,對木材彊韌性纖維類材料施加彊剪切力和研磨力,以保證微納米木粉的成功製備。採用“平衡軌道”模型對製備的微納米木粉進行分離,併對不同粒徑的木粉利用CFD原理進行兩相流流體場內的分離模擬,以保證在實踐加工中不同粒徑的木粉能夠順利地進行分離分級。最後,將分離收集到的不同粒徑的木粉樣品進行物理性質的研究。試驗結果錶明,本試驗的微納米木粉製備繫統能夠分離齣預期的木粉粒徑,且隨著木粉粒徑的不斷減小,木粉的顏色、密度、糰聚性和附著性都將隨之增加。
재미납미목분적시험제비과정중이락협송거설위가공원료,이예기가공적미납미목분과립립경위시험가공목적,장시험설비중적마반지석작위가공적핵심부건,대목재강인성섬유류재료시가강전절력화연마력,이보증미납미목분적성공제비。채용“평형궤도”모형대제비적미납미목분진행분리,병대불동립경적목분이용CFD원리진행량상류류체장내적분리모의,이보증재실천가공중불동립경적목분능구순리지진행분리분급。최후,장분리수집도적불동립경적목분양품진행물이성질적연구。시험결과표명,본시험적미납미목분제비계통능구분리출예기적목분립경,차수착목분립경적불단감소,목분적안색、밀도、단취성화부착성도장수지증가。
In the test production of the micro nano wood powder , larch sawdust was used as raw material for pro-ducing micro nano wood powder particles of desired sizes .To ensure such micro nano wood powder was produced as desired , grinding whetstone was used as the primary tool to take advantage of the strong shear force and grinding force acting on the obdurability fiber material .Once the desired micro nano wood powder was produced , it was sep-arated with the ‘equilibrium orbit ’ model, and a separation simulation process was conducted by taking advantage of the CFD principle in the two-phase fluid field for different sizes of wood particles to ensure wood powder in differ-ent particle sizes can be successfully separated and graded .A study on the physical properties of the sampled wood powder in different particle sizes produced from the processing was conducted .The test results showed that the wood powder color , density , aggregation and adhesion will increase as the wood powder particle size decreases .