带式压榨过滤机的选型

围绕污泥性质、操作条件及单辊压榨试验,介绍了带式压榨过滤机的选型问题。粒径分布,尤其是3μm以下颗粒所占比率,对污泥的脱水性影响颇大。通过单辊压榨试验,得到了操作条件(压榨时间t、压力p或p×t)与泥饼含湿率的关系,该试验所得数据和实用数据之间有着很好的相关,根据试验所得数据,便能选定合适的机型。     

LGLY立式果汁连续压榨过滤机的设计及应用

介绍一种新型的应用在果汁提取行业的过滤机—LGLY立式果汁连续压榨过滤机。介绍其结构设计、技术参数、工作原理、应用范围及试验情况,其中重点介绍了该机的总体结构设计与应用技术的关键,为设计与应用提供参考。并简要分析了果汁行业的具体情况和趋势,结合该机的优点,指出该机是具有发展前景的一种果汁提取设备。     

城市污水处理的新型脱水设备--转筒浓缩带式压榨过滤机

通过对转筒浓缩带式压榨过滤机和传统的带式压榨过滤机进行介绍、分析、比较，阐明转筒浓缩带式压榨过滤机技术指标先进，更适合于处理经生物反应生成的活性污泥是城市污水处理厂首选的新型污泥脱水设备，有着广阔的应用前景。     

国外带式压榨过滤机的发展概况

对国外带式压榨过滤机进行了调查,报告了带式压榨过滤机的重力脱水、挤压剪切脱水和高压压榨脱水三个脱水区段,以及系统控制技术的发展。     

絮凝技术在化工污水处理中的应用

对不同种类的絮凝剂在不同试验条件下得到的絮凝现象进行观察,絮凝后的污水通过带式压榨过滤机过滤,根据过滤前后污泥性质的变化选择出最佳的絮凝剂及使用条件。     

一维恒压压榨脱水的理论研究

概述了过滤机上采用压榨技术的重要意义。结合自动箱式及板框式压滤机的薄膜压榨技术,推导出一维恒压压榨脱水的数学模型及理论解。用Basic语言在IBMPC计算机上计算出理论平均压榨比与压榨时间(U_T(?)-√)的关系,并同实际情况作比较,其结果符合良好。     

提取纸浆黑液的高效、节能设备锥盘压榨过滤机

介绍锥盘压榨过滤机的结构特点和工作原理,通过在造纸厂的应用表明,该机与双辊螺旋挤压机相比具有如下优点:浓黑液的提取率明显提高,提取浓黑液的波美度高,洗涤用水量明显减少,压榨后料浆含湿量明显降低,经济效益和社会效益明显。     

过滤压榨机模型的研究

通过由过滤及压榨过程组合而成的小型装置对脱水性能极差的活性污泥进行脱水试验，提出其试验方法、压榨模型。得到过滤压榨过程的关系曲线并证明压榨理论曲线与试验曲线存在的偏差。     

过滤分离技术在无机盐工业的应用展望

提出了在无机盐工业生产中应用过滤分离技术与设备时应注意的几个问题。结合国内外分离机械发展趋势（大型化、多功能集于一体、用途专业化）,介绍了几种节能型过滤设备（带压榨机构的箱式压榨机、陶瓷过滤介质与陶瓷过滤机、带式压榨过滤机、罐式三合一设备）及新型过滤介质。     

连续动态离心-螺旋压榨分离实验研究

提出了将离心过滤与螺旋压榨分离融为一体的思路,介绍了设计制作连续动态离心—变径螺旋压榨分离实验机、分离机理、实验工艺流程及实验方法,通过实验测出了压榨速率、滤饼湿含量及离心—压榨段长度,分析了转鼓转数、转鼓与变径螺旋之间的转数差值等因素对离心—压榨效果的影响,实验证明该实验机可行。     

Conditioning for Municipal Sludge Dewatering. From Filtration Compression Cell Tests to Belt Press

Belt presses are commonly used to achieve sewage sludge dewatering. As this process essentially works by squeezing, it was interesting to better understand how the sludge conditioning affects cake expression. Experiments were carried out with conditioned municipal activated sludge on both a filtration compression cell (FCC) and a laboratory-scale belt press. Two cationic polyelectrolytes with a high charge density (80%) but different molecular weights were used. A significant impact of the conditioning was observed for FCC tests. The higher molecular weight polyelectrolyte led to much shorter filtration phases than with the medium molecular weight one. However, it produced wetter filter cakes. It also led to more elastic filter cakes but less susceptibility to creep. Higher final dryness was observed for sludge conditioned by the medium molecular weight polymer. Experiments carried out on the belt press device did not exhibit such impact. Consequently, the FCC test is not suitable to analyze the sludge dewatering by belt press, although it enables characterization of the expression phase. Indeed, some additional features involved in belt press, such as shear forces or progressive pressurization of the cake, are not characterized by classical FCC tests.     

Conditioning for Municipal Sludge Dewatering. From Filtration Compression Cell Tests to Belt Press

Belt presses are commonly used to achieve sewage sludge dewatering. As this process essentially works by squeezing, it was interesting to better understand how the sludge conditioning affects cake expression. Experiments were carried out with conditioned municipal activated sludge on both a filtration compression cell (FCC) and a laboratory-scale belt press. Two cationic polyelectrolytes with a high charge density (80%) but different molecular weights were used. A significant impact of the conditioning was observed for FCC tests. The higher molecular weight polyelectrolyte led to much shorter filtration phases than with the medium molecular weight one. However, it produced wetter filter cakes. It also led to more elastic filter cakes but less susceptibility to creep. Higher final dryness was observed for sludge conditioned by the medium molecular weight polymer. Experiments carried out on the belt press device did not exhibit such impact. Consequently, the FCC test is not suitable to analyze the sludge dewatering by belt press, although it enables characterization of the expression phase. Indeed, some additional features involved in belt press, such as shear forces or progressive pressurization of the cake, are not characterized by classical FCC tests.     

过滤分离技术在无机盐工业清洁生产中的应用

过滤与分离作为基本的化工生产单元过程之一,在无机盐生产中不可或缺。清洁生产要求过滤与分离过程能采用先进的工艺技术、高效集成分离设备、新型过滤介质、环保型后处理工艺,并确保过程的高效节能。对氯碱盐泥、尾矿矿浆过滤与分离过程中的清洁生产技术进行了应用研究。在压榨过滤工业性试验中探索了压榨过滤操作的最适宜起始压榨点,确保压榨效果最好、过程用时短、滤饼含液量更低;针对铝土矿浮选后尾矿的物性,分别采用助过滤、絮凝、凝聚技术等预处理方法对尾矿处理与水的回用过程进行了最适宜的使用条件与方法的探索,应用效果好,处理量高,水回用可达到国家标准,可供工业生产借鉴。     

立式压滤机的特点及其在铀矿冶中的应用设想

立式压滤机是固液分离领域的重要设备之一,其主要特点是自动化程度高,滤布再生能力强,应用领域广。列举了立式压滤机的应用情况,并通过对立式压滤机与卧式压滤机的比较,提出了立式压滤机应用于大型铀矿山的设想,从而实现减少设备占地面积、降低滤渣含水率、提高自动化程度、降低劳动强度等卧式压滤机无法实现的效果。     

旋转压滤机功率消耗的实验研究

介绍了旋转压滤机的过滤特性,采用实验的方法,测定了旋转压滤机在自动控制系统中功率消耗的基本状况。讨论了操作压力、进料浓度、卸料浓度对功率消耗的影响。测试数据为如何选择适宜的操作条件提供了依据,从而使旋转压滤机在实际生产中的工作效率得以大大提高。     

全自动压榨式压滤机的原理及其应用

本文介绍了改进型全自动压榨式压滤机的性能和特长，着重讨论了其滤饼的剥离装置和进液方式，提出了应用实例及其发展方向     

隔膜压滤机在颜料生产中的应用

从生产实践出发,根据隔膜压滤机和颜料行业的特点,对隔膜压滤机在颜料生产中的应用进行简要的探讨,在此基础上对其在酞菁绿颜料洗涤中的工艺参数进行了摸索与优化。     

污泥脱水用带式压滤机的应用经验

根据污泥脱水用带式压滤机在应用中所出现的问题,并结合污泥脱水用带式压滤机的工作原理,总结了在工程应用中为保证其稳定运行所采取的一些改进措施。