西部林业科学
西部林業科學
서부임업과학
JOURNAL OF WEST CHINA FORESTRY SCIENCE
2013年
6期
100-103
,共4页
微纤丝%制取%整机%设计原理
微纖絲%製取%整機%設計原理
미섬사%제취%정궤%설계원리
microfibril%preparation%whole machine%design principle
木材细胞壁主要由纤维素、半纤维素和木质素组成,结合木材细胞组成特点,采用高速旋转式磨削粉碎方法制取微纤丝,设计出制取微纤丝设备的整机,其包括主机部分、润滑系统、冷却系统、蒸汽发生装置和电控系统等,针对制取微纤丝主机部分进行重点介绍,并对原料破坏细化过程,制取微纤丝的原理进行分析说明。研究结果表明,微纤丝抽取工艺是采用木材锯末作为加工原料,将木材锯末放入通入蒸汽的进料漏斗进行蒸煮,高温高压蒸煮2h后,将蒸煮好木材锯末借助高温高压的蒸汽送入主机部分的研磨室内进行高速旋转研磨,在研磨室内进行激烈的研磨剪切和撞击细化,得到微纤丝。本项研究还分析论证制取微纤丝的可行性,为今后实验台的加工制造和微纤丝制取提供理论依据。
木材細胞壁主要由纖維素、半纖維素和木質素組成,結閤木材細胞組成特點,採用高速鏇轉式磨削粉碎方法製取微纖絲,設計齣製取微纖絲設備的整機,其包括主機部分、潤滑繫統、冷卻繫統、蒸汽髮生裝置和電控繫統等,針對製取微纖絲主機部分進行重點介紹,併對原料破壞細化過程,製取微纖絲的原理進行分析說明。研究結果錶明,微纖絲抽取工藝是採用木材鋸末作為加工原料,將木材鋸末放入通入蒸汽的進料漏鬥進行蒸煮,高溫高壓蒸煮2h後,將蒸煮好木材鋸末藉助高溫高壓的蒸汽送入主機部分的研磨室內進行高速鏇轉研磨,在研磨室內進行激烈的研磨剪切和撞擊細化,得到微纖絲。本項研究還分析論證製取微纖絲的可行性,為今後實驗檯的加工製造和微纖絲製取提供理論依據。
목재세포벽주요유섬유소、반섬유소화목질소조성,결합목재세포조성특점,채용고속선전식마삭분쇄방법제취미섬사,설계출제취미섬사설비적정궤,기포괄주궤부분、윤활계통、냉각계통、증기발생장치화전공계통등,침대제취미섬사주궤부분진행중점개소,병대원료파배세화과정,제취미섬사적원리진행분석설명。연구결과표명,미섬사추취공예시채용목재거말작위가공원료,장목재거말방입통입증기적진료루두진행증자,고온고압증자2h후,장증자호목재거말차조고온고압적증기송입주궤부분적연마실내진행고속선전연마,재연마실내진행격렬적연마전절화당격세화,득도미섬사。본항연구환분석론증제취미섬사적가행성,위금후실험태적가공제조화미섬사제취제공이론의거。
Wood cell wall mainly composes of cellulose , hemicellulose and lignin composition .Combined with the characteristics of wood cell wall composition , a preparation machine is designed by using high-speed rotating grind-ing method to gain microfibril .The machine includes the host part , lubrication system, cooling system, steam generating device and electric control system .Preparation of Microfibril host part is introduced , and the wood shav-ings refinement process , preparation of the principle of microfibril are analyzed . The results show that small pieces of wood , as raw materials for processing , is placed into the feed hopper for steam cooking .After high tem-perature and pressure cooking for 2 h, the small pieces of wood is sent into a host of high-speed rotating abrasive grinding room with the support from good high-temperature high-pressure steam , heated during the grinding shear and impact refinement indoor , then the microfibril is produced .This paper also analyzes the feasibility of preparing microfibril, which provides a theoretical basis for the future manufacture and preparation of laboratory equipment .