液—液两相聚结分离原理及实际应用

对非均相液—液两相的聚结分离机理进行了阐述,以纤维类聚结介质为例,将聚结过程分为液滴捕集、液滴聚结和液滴沉降三个阶段。在聚结原理基础之上,对液—液聚结分离用的聚结材料进行分类,在此基础之上,详细介绍了目前应用比较广泛的液—液两相分离设备。最后指出液—液两相聚结分离技术及设备的发展方向。     

Partition coefficient of diglycerides in crystallization of palm oil

Crystallization of palm oil with and without solvent was carried out over a temperature range of 10–25°C. The yields of olein, the diglyceride contents, and compositions of the stearin and olein phases were determined by thin-layer and gas-liquid chromatography. The three major diglycerides, analyzed as C₃₂, C₃₄, and C₃₆, are mainly dipalmitoyl glycerol, palmitoyloleoyl glycerol, and dioleoyl glycerol. In crystallization without solvent, C₃₂ (PP) had a strong affinity for the stearin fraction and C₃₆ diglycerides concentrated in the olein phase. The partition coefficient of diglycerides between the olein and stearin phases was temperature-dependent and was influenced by the type of solvent used. Although solvent enhances the diglyceride partition into the olein phase, partitioning is more effective at low temperatures and with acetone as the solvent for fractionation.     

提高φ5m×11.5m生料磨产量的措施

针对粘土资源枯竭问题,江苏巨龙水泥集团实施了以粉煤灰和硅石代替粘土的技改工程。但改造后因原料的变更,导致入房物料易磨性变差而影响了φ5m×11.5m生料磨的产质量,并进一步影响察系统的运行。因此该厂在工艺分析的基础上,采取了调整钢球级配、用高铬球替代合金刚球、改造选粉机、加强石灰石二破的管理和减少系统是否是“漏风”等技术措施,效果显著。改造后的生料磨台时产量比调整前提高了12t/h,且节电效果显著。     

两钠尾气分离器的技术改造

对直接法生产两钠(硝酸钠和业硝酸钠)的工艺过程作了简介，分析了原设计中尾气分离装置存在的缺陷，对尾气分离装髓进行了改造并取得了良好的效果。     

双膜分离器的数学模型

建立了适用于双膜分离器的数学模型,并用实验数据验证了数学模型的可行性和合理性;对非对称膜渗透过程的数学计算模型作了进一步的探讨,指出在本实验范围内非对称膜的渗透行为与对称膜的渗透行为相近。     

串联式干气密封在液态烃泵上的应用

从理论上对干气密封的作用机理及影响干气密封性能的主要参数进行了研究。对液态烃泵用串联式干气密封的结构进行优化，设计制造出了适合轻烃类介质的串联式干气密封及控制系统，工业运行获得成功，极大地提高了液态烃泵的性能及可靠性。     

带钩波形板分离器分离性能试验研究

对带钩波形板分离器的分离效率性能和阻力特性进行了试验研究.结果表明:风速、含湿率对分离效率的影响大,分离器分离效率随风速升高而降低,随含湿率增加而增大;含水量对分离器阻力的影响很小,分离器阻力随风速的增加而增大.研究结果为高效空冷除湿器设计提供了理论依据.     

Surface performance of workpieces processed by electrical discharge machining in gas

The surface performance of workpieces processed by electrical discharge machining in gas(dry EDM)was studied in this paper.Firstly,the composition,micro hardness and recast layer of electrical discharge machined(EDMed)surface of 45 carbon steels in air were investigated through different test analysis methods.The results show that the workpiece surface EDMed in air contains a certain quantity of oxide,and oxidation occurs on the workpiece surface.Compared with the surface of workpieces processed in kerosene,fewer cracks exist on the dry EDMed workpiece surface,and the surface recast layer is thinner than that obtained by conventional EDM.The micro hardness of workpieces machined by dry EDM method is lower than that machined in kerosene,and higher than that of the matrix.In addition,experiments were conducted on the surface wear resistance of workpieces processed in air and kerosene using copper electrode and titanium alloy electrode.The results indicate that the surface wear resistance of workpieces processed in air can be improved,and it is related with tool material and dielectric.     

米曲霉在牛乳中最适生长条件的研究

利用米曲霉对牛乳进行发酵,通过单因子及正交试验以菌丝体干重为指标对其在牛乳中的生长进行了研究．结果表明：接种量为4％,装液量为30mL,摇床转速为180r／min时菌丝体干重可达到最大．此外测得最大菌丝体干重时的蛋白质分解率可达35．6％．     

泡沫混凝土配合比的设计

在研究泡沫混凝土各种原材料性能及大量实验和中试生产实践基础上,运用数理统计归纳分析,设计出既能满足泡沫混凝土干密度、导热率、强度、浇筑稳定性等技术要求,又经济合理、易于操作的各种原材料配合比,达到控制泡沫混凝土导热系数和抗压强度的目的,进而指导泡沫混凝土生产工艺过程,确保产品质量.