中国农业气象
中國農業氣象
중국농업기상
AGRICULTURAL METEOROLOGY
2015年
4期
446-453
,共8页
涂德浴%李安心%胡云%谢伟
塗德浴%李安心%鬍雲%謝偉
도덕욕%리안심%호운%사위
水稻秸秆%成型燃料%正交试验%抗碎强度%松弛密度
水稻秸稈%成型燃料%正交試驗%抗碎彊度%鬆弛密度
수도갈간%성형연료%정교시험%항쇄강도%송이밀도
Rice straw%Molding fuel%Orthogonal experiment%Shatter resistance%Loose density
利用单孔成型设备对水稻秸秆在不同参数条件下进行冷压成型试验。通过单因子试验和正交试验，观测不同成型压力、原料粒径及含水率等条件下成型颗粒的松弛密度、耐久性及退模压力，研究成型参数对成型颗粒物理性能指标的影响，以寻求冷压成型一般参数范围和各参数对不同成型指标的影响，为秸秆热压成型和连续成型试验提供数据支持。单因子试验结果表明，水稻秸秆各成型参数的范围为成型压力120～180MPa、粒径小于0.9mm、含水率15%～25%。在单变量试验基础上，设计正交试验。正交试验结果表明，针对不同性能指标，各工艺参数成型颗粒的影响力不一致，成型压力对松弛密度、抗碎强度及抗压强度的影响较大；而原料粒径对抗渗水性的影响较大。对于松弛密度和抗碎强度，成型参数中成型压力、原料粒径、含水率的最佳组合为180MPa、0～0.2mm、18%，抗渗水性的成型参数最佳组合为180MPa、0～0.2mm、12%，抗压强度的成型参数最佳组合为180MPa、0.6～0.9mm、18%。
利用單孔成型設備對水稻秸稈在不同參數條件下進行冷壓成型試驗。通過單因子試驗和正交試驗，觀測不同成型壓力、原料粒徑及含水率等條件下成型顆粒的鬆弛密度、耐久性及退模壓力，研究成型參數對成型顆粒物理性能指標的影響，以尋求冷壓成型一般參數範圍和各參數對不同成型指標的影響，為秸稈熱壓成型和連續成型試驗提供數據支持。單因子試驗結果錶明，水稻秸稈各成型參數的範圍為成型壓力120～180MPa、粒徑小于0.9mm、含水率15%～25%。在單變量試驗基礎上，設計正交試驗。正交試驗結果錶明，針對不同性能指標，各工藝參數成型顆粒的影響力不一緻，成型壓力對鬆弛密度、抗碎彊度及抗壓彊度的影響較大；而原料粒徑對抗滲水性的影響較大。對于鬆弛密度和抗碎彊度，成型參數中成型壓力、原料粒徑、含水率的最佳組閤為180MPa、0～0.2mm、18%，抗滲水性的成型參數最佳組閤為180MPa、0～0.2mm、12%，抗壓彊度的成型參數最佳組閤為180MPa、0.6～0.9mm、18%。
이용단공성형설비대수도갈간재불동삼수조건하진행냉압성형시험。통과단인자시험화정교시험，관측불동성형압력、원료립경급함수솔등조건하성형과립적송이밀도、내구성급퇴모압력，연구성형삼수대성형과립물이성능지표적영향，이심구냉압성형일반삼수범위화각삼수대불동성형지표적영향，위갈간열압성형화련속성형시험제공수거지지。단인자시험결과표명，수도갈간각성형삼수적범위위성형압력120～180MPa、립경소우0.9mm、함수솔15%～25%。재단변량시험기출상，설계정교시험。정교시험결과표명，침대불동성능지표，각공예삼수성형과립적영향력불일치，성형압력대송이밀도、항쇄강도급항압강도적영향교대；이원료립경대항삼수성적영향교대。대우송이밀도화항쇄강도，성형삼수중성형압력、원료립경、함수솔적최가조합위180MPa、0～0.2mm、18%，항삼수성적성형삼수최가조합위180MPa、0～0.2mm、12%，항압강도적성형삼수최가조합위180MPa、0.6～0.9mm、18%。
The lab-scale rice straw cold-press forming experiments were carried out under different parameter conditions. In order to investigate the effect of some molding parameters, such as moisture content, particle size and compressive force, on rice straw cold compression molding process, single variable experiments and orthogonal experiments were employed which chose loose density and some durability indexes as judgment criteria. Single parameter tests showed the general law and range of each parameter. The results showed that the forming pressure was in the range of 120-180MPa, compared to the particle size in 0.2-0.9mm and moisture content in 12%-25%. Based on single variable tests, orthogonal tests were used to find the effect extent and reasonable combination of three parameters. The results indicated that each forming parameter had different impact extent to various physical properties. Indices of loose density, shatter resistance and compressive strength were strongly correlated with compressive force, and the parameter of particle size had massive effect on the index of water resistance. The reasonable parameter combination(forming pressure × particle size × moisture content) for loose density and shatter resistance was 180MPa, 0-0.2mm, 18%, but for water resistance was 180MPa, 0-0.2mm, 12%, and for compressive strength was 180MPa, 0.6-0.9mm, 18%. The conclusion can provide technical support for industrialized production of rice straw molding fuel.
