Fluidization has been assumed as an efficient means of contacting different particles in various fields such as chemical , metallurgical and pharmaceutical industries . however , the researches in this field are still not enough , thus the industrial application of the fluidized beds is limited 流态化技术广泛地应用于化工、石油、冶金、食品等许多工业领域之中，然而该领域的研究还不够充分，工程应用还有待于进一步研究。
However , following the rapidly growing application of the ultra - fine particles in industry , fluidization of the ultra - fine powders has become a significant emerging field in recent years . and how to improve fluidization quality is a key point for further investigation 但近年来，随着超细粉体技术的发展以及对超细粉加工的需要，超细粉流态化技术的研究和应用日益受到人们的关注，特别是如何改善流化质量正逐渐成为研究的重点和热点。
And if it is the drying of relative light and small granular and powder like materials , cloth bag dust catcher is needed , and the pneumatic feeder apparatus is offered as a choice . add particulate material into fluid - bed dryer by feeder and send the filtered and heated clean air into fluid - bed by air - blower 散粒状固体物料由加料器加入流化床干燥器中，过滤后的洁净空气加热后由鼓风机经分布板与固体物料接触，形成流态化达到气固相的热质交换。
In this paper , the two - phase flow behaviors of gas - solid circulating fluidized bed have been first studied by analysing experimental data . then , based on fractal theory wavelet package analysis ( wpa ) de - noising method was used to denoise solids concentration and pressure fluctuation signals . the solids concentration signals have also been investigated by wavelet multi - resolution analysis and wavelet package decompose , contributed to disclose the non - uniform flow structures of gas - solids phase 然后将基于分形理论的小波包消噪方法用于颗粒浓度和压力波动去噪，并对气固流化床中的颗粒浓度信号进行了小波多分辨分析和小波包多尺度分解，从新角度揭示了气固流态化系统的非均匀气固两相流动结构。
Based on a large amount of experimental data , nonlinear analysis , such as complexity theory , and approximate entropy ( apen ) which is adopted systematically in the fluidization research the first time , are implemented in the time series analysis of pressure fluctuation and particle concentration in gas - solid fluidized beds , and the nonlinear characteristics of fluidized beds are discussed comprehensively 本文在大量实验数据基础上，将非线性方法，包括复杂性理论，以及首次被系统引入流态化研究的近似熵，应用到气固流化床压力及颗粒浓度脉动时间序列分析中，较为系统地探讨了流化床的非线性特征。
Based on the mutual information , in the paper , data fusion technology to analyze multi - signals in a gas - solid fluidized bed and select the new parameters to token nonlinear characteristics in fluidization , we analyzed the different time serials of various channels at different regimes and got the information 在不同通道互信息的基础上，本文利用多传感器模糊信息融合理论分析流化床中的多种信号，把迄今为止的单一传感器，单一参数的检测分析拓展到多传感器多参数的信息融合，建立新的特征参数反映流态化过程的非线性本质。
Pressure fluctuation time series in gas - solid fluidized beds contain many dynamic information , such as particle characteristics , operating conditions , bubble behavior . in the paper , nonlinear analysis is adopted and implemented so as to understand the fluidization from a new viewpoint in depth 气固流化床压力脉动时间序列包含了床层运动的许多动态行为信息，包括颗粒特性、操作条件，气泡行为等，文中应用多种非线性方法来对其进行研究，以期能从新的角度来更深入地认识流态化规律。
The fieldworks and the test results show that there appears three failure models on the natural slope , that is , rotational slide , translational slide and earth flows . triaxal tests , including the isotropical consolidation drained and undrained compression and anistropically drained tests , are performed on loosely compacted specimens . the critical state line ( csl ) is obtained in the e - lgp " plot based on the results of the above tests 在野外调查的基础上，结合试验成果分析，初步得出自然斜坡破坏的模式，包括旋转型滑动、平移型滑动及土流等；并对暴雨滑坡转化成泥石流的影响因素和碎屑物质的运动距离作了定性分析；初步分析了滑坡转化成泥石流的流态化机理。
Granule which dimension is millimeter only is used generally , the micron can have the ability of enhance , the nami will be exceed , the define of microscope granule measure is all of data which can be scaled and statistic included geometry , pileup , combination , make up , object shape , micro hole . the basic object which is discussed by the article and software is granule dimension ( length , granularity ) and orientation measure 毫米颗粒仅具常规性能和常规用途，微米( 10 ? 0 . 1微米)颗粒具增强功能(力学增强、流态化能力增强、磁力增强等) ，纳米( 100 ? 0 . 1纳米)颗粒具超常功能(韧性陶瓷? ?摔不碎，超硬铜材? ?硬度提高500 ， 750度低熔铜、黑色白金、隐形材料等) 。
The porous ceramics is composed of lots of bridge arch - shaped microspores that connected and well - distributed inside the material . when the fluid passes through these pores , the suspended matters , colloid particles and big molecular organic substances are withheld or absorbed to the inner surface of the pore , and result in filtration , purification adn even - dispersion , high strength , good resistance to abrasion , high temperature and corrosion , no pollution , long workinglife , and easy to regenerate , the porous ceramics are available for filtration and fluidization of variou gas and liquid 微孔陶瓷过滤介质由许多大小分布均匀,相互连通的桥拱状开口气孔组成.当流体从这些气孔中通过时,流体中的悬浮物质,胶体颗粒,大分子有机物等被截留,吸附在微孔道内,从而达到了净化和过滤均匀化的效果.微孔陶瓷强度高,耐磨损,耐高温,耐腐蚀,无污染,气孔分布均匀,使用寿命长且再生简便,特别适用于各种气,液过滤和流态化过程
