推荐回答(4个)
多介质过滤器的吸附是一种物理吸附,按滤料的填装方式大体可分为松散区(粗砂)、紧密区(细砂),悬浮物质在松散区主工通过流动接触产生接触凝聚作用,所以该区域截留较大颗粒的悬浮物质,在紧密区主要是惯性碰撞及悬浮颗粒间的吸附作用,所以该区域是截留较小颗粒的悬浮物质。当多介质过滤器因截留过量的机械杂质而影响其正常工作,则可用反冲洗的方法来进行清洗。利用逆向进水,同时通入压缩空气,进行气水混合擦洗,使过滤器内砂滤层松动,可使粘附于石英砂表面的截留物剥离并被反冲水流带走,有利于排除滤层中的沉渣、悬浮物等,并防止滤料板结,使其充分恢复截污能力,从而达到清洗的目的。反洗以进出口压差参数设置来控制反冲洗周期,经验得知一般为一天,具体须视原水浊度而定。
多介质过滤器为水处理系统的预处理设备,适用于浊度在1-10NTU的进水;目的除去水中的悬浮物、颗粒和胶体,降低进水的浊度和SDI值,满足除盐装置后续设备的进水要求;设备可以通过周期性的清洗来恢复它的截污能力。设备由本体、布水装置、集水装置、外配管及仪表取样装置等组成。进水装置为上进水、挡板布水,集水装置为多孔板滤水帽集水或穹形多孔板加承托层结构;设备的本体外部配管配带阀门并留有压力取样接口,便于用户现场安装和实现装置正常运行。安装前检查土建基础是否按设计要求施工。设备按设计图纸进行就位,调整支腿垫铁并检查进出口法兰的水平度和垂直度。将设备和基础预埋铁板焊接固定,固定后再次校验进出口法兰的水平度和垂直度。将设备本体配管按编号区分后依设计图纸进行组装,每段管道组装前应用干净抹布对内壁进行清洁工作,组装后应保持配管轴线横平竖直,阀门朝向合理(手动阀手柄朝前,气动阀启动头朝上)。检查本体阀门开关灵活,有卡壳的情况及时整改。设备本体配管完成后应对阀组进行必要的支撑工作等。安装设备上配带的进出水压力表、取样阀等;进出水管道上如有流量探头座应用堵头堵住。
冲洗考虑到设备和管道连接时的电焊残渣、管道初次投用时的表面污物,设备初次投入运行时应进行冲洗。打开设备的人孔法兰将设备内的零件重新紧固,并确认罐内部件(如水帽等)不缺少;封闭人孔法兰。打开设备的下排阀,确认设备的出水阀关闭。打开设备进水阀、排气阀,开启生水泵,至设备排气口出水后关闭排气阀,冲洗设备至出水清晰为冲洗终点。关闭生水泵。装填滤料打开人孔,按所设计的填料高度,依次装入各种规格的填料,每填完一种均要人工扒平方可填上一层;石英砂填装完毕,反洗至排水清澈;再装填无烟煤。滤料装填完毕后封闭人孔。开启反洗泵,至排气阀出水后静止30分钟或适时开启生水泵以完全浸泡滤料,再开启反洗泵至设备出水清晰,检测SDI为冲洗终点。设备进入备用状态。设备正常运行后应检测进出水压差不大于0.5bar,检验进出水的流量显示。
多介质过滤器,用于原水的除浊处理。将原水送入装有各级匹配的石英砂的多介质过滤器,利用石英砂的截污能力,可有效地去除水中的较大颗粒悬浮物和胶体等,使出水的浊度小于1mg/l,以保证后续处理的正常运行。原水在管道内加入絮凝剂,絮凝剂在水中发生离子水解和聚合过程,水中胶体粒子对水解及聚集的各种产物进行强烈的吸附,使粒子表面电荷和扩散厚度同时降低,因而粒子间相互排斥能降低,相互接近而凝聚,水解产生的聚合物被两个以上的胶体吸附后,在粒子间产生架桥联接,逐步形成较大的絮凝体,经过多介质过滤器时,为砂滤料载留。
介质过滤器是一种利用过滤介质来去除水中的机械杂质(浊度)、胶体、有机物和活性氯等,zui终达到降低水浊度、净化水质效果的一种高效过滤设备。介质过滤器常用的滤料有石英砂、活性碳、无烟煤、锰砂等,介质过滤器罐体则多采用轻质高强的玻璃钢材质
多介质过滤器,用来提高水质,处理水中5μm以下的有机物与无机物。是一种内装填石英砂及优良无烟煤滤料的压力过滤器。利用无烟煤滤料te有的多孔吸附性,使其既有下层过滤又有上层有效吸附等功能,与单滤料相比,滤料的纳污量增强。结构简单,技术成熟,性价比高,应用领域广泛
多介质过滤器过滤系统可由一个或多个标准的过滤单元组成,原水通过内部布水器、滤层及集水器,利用优良石英砂及无烟煤滤层,有效去除原水中的污染物
可以在大流量小压损情况下,长期稳定工作,节能环保,基本免维护
水天蓝环保生产的多介质过滤器分有碳钢防腐,机玻璃体、不锈钢、玻璃钢等系列,可根据实际情况设计选用。其用途可用于制作纯水的前期预处理、内填充滤料为石英砂、活性碳、无烟煤等介质。对污水可起到除蚀、澄清等目地,含铁、锰较高的地下水,可用此过滤器,加入相应介质,使出水达到我们理想的要求
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