QTRS系列浅层气浮机

日期：2024-09-07 15:24:11 访问次数：1273

高效浅层气浮装置是一种先进的气浮系统，它成功地运用“浅池理论”和“零速”原理进行设计，集凝聚、气浮、撇渣、沉淀、刮泥于一体，是一种高效节能的水质净化设备。广泛用于工业污水处理系统中(如:造纸、食品、电镀、制革、针织、印染、毛纺、屠宰、石油、化工等),尤其适用于造纸行业中的纤维回收；也可用于给水上，对原水进行预处理(如：除澡、降浊)；还可用于生物污泥的浓缩处理。

超效浅层气浮系统特点
      1、采用“浅层理论”、“零速度理论”和新溶气机理设计；
      2、停留时间短，仅有3-5分钟，表面负荷高达9.6-12m/m.h，占地面积小；
      3、池深仅为600-700mm；
      4、出渣含固率可以高达3-5%，悬浮物去除率可达98%，出水悬浮物可低于30mg/l；
      5、强制布水，进出水都是静态的，微气泡与絮粒的粘附发生在包括接触区在内的整个气浮分离过程；浮渣瞬时清除，隔离排出，水体扰动非常小；
      6、溶气管设计独特，体积小，溶气效率高，溶气水和药剂加入点合理选用，保证实现共聚气浮；
      7、设备轻巧、效率高、稳定性高、便于运输和安装；
      8、此产品系我公司吸引国外先进技术、创新开发。

浅层气浮与传统气浮装置的比较

① 传统气浮装置中，池深一般为2.0～2.5 m，这是因为设备是静止的，水体是运动的。水体从反应室进入接触区时会产生流向的改变和流速的重新分布，即把水流转变成均匀向上的流动，这就需要有一定的时间和高度来完成这一变化，其高度一般不低于1.5 m。而浅层气浮由于“零速度”原理的应用，实现了设备是运动的，水体是静止的，消除了由于水体的扰动对悬浮颗粒与水分离的影响，降低了对高度的要求；另外在传统气浮装置中，难免有泥砂或絮粒沉于池底，为防止带出池底的泥砂，出水管一般悬高300 mm，而在浅层气浮装置中，由于池底设置了刮泥装置，因此不需设置悬高段。通过以上分析，浅层气浮装置的有效水深一般为400～500 mm。
  ② 传统气浮装置中，水体的停留时间一般控制在10～20 min；而浅层气浮装置中，停留时间只需2～3 min。
  ③传统气浮装置中，溶气系统配备的是溶气罐，若按溶气罐的实际容积来计算，其水力停留时间为2～4 min；而浅层气浮装置中，溶气系统采用的是溶气管，取消了填料，使溶气管的容积利用率达100%，其水力停留时间只有10～15 s。
  ④ 在传统气浮装置中，刮渣器定期对浮渣层进行清除，无法根据浮渣的浮起时间进行有选择性的清理，因此不但对水体有较大的扰动，而且浮渣的含水率也较大；在浅层气浮装置中，螺旋撇渣器安装在配水系统的前部，清除的浮渣总是气浮池内浮起时间最长(2～3 min)的浮渣，即固液分离最彻底、含水率最小的浮渣。

性能特点

1）.有效水深500-600mm。

2）.池内水力停留时间(3-5min)。

3）.净化量大，即表面负荷高。

4）.占地面积小，单位负荷轻，全部预制构件组装，不需要操作室，设备可以架空安装，也可多层组合。

5）.安装维修费用低，易于清扫。

6）.净化程度，高悬浮物去除率达90%以上。

适用范围

该设备广泛应用于给排水处理工程。用途在给水处理工艺程序中，固液分离技术及其设备是关键项目之一。对于比重接近于水的微小悬浮颗粒的去除，气浮是最有效的方法之一。

第一，应用于湖泊水为水源的自来水除藻降浊；

第二，应用于工业污水处理工程，如烟草、石油化工、纺织、印染、电镀、制革、食品工业等领域；

第三，应用于污水中有用物质的回收，如：造纸、浆水中的纤维回收等领域。

主要机构

高效浅层气浮装置集凝聚、气浮、撇渣、沉淀、刮泥为一体，整体成圆柱形，结构紧凑，池子较浅。装置主体由五大部分组成：池体、旋转布水机构、溶气释放机构、框架机构、集水机构等。进水口，出水口与浮渣排出口全部集中在池体中央区域内，布水机构、集水机构、溶气释放机构与框架紧密连接在一起，围绕池体转动。

（1）Superifical DAF introduction

Our  QTQS Type Superficial DAF is an advanced quick-speed flotation system integrated with flocculation, flotation, skimming and mud scrapping. Based on the traditional flotation theory, we also use the “shallow theory” and “principle of zero speed” successfully. Thus our superficial air flotation is widely applied in waterworks removing alga, varec and other turbic water from nature lake and river; Industrial sewage treatment projects such as petro-chemical, textile, printing and dyeing, electroplating, tanning, food industry and other fields; Recycling useful material in sewage like fibre recovery on paper& pulp industry

（2）Features

※Shallow effective water depth: 750mm~950mm

※Short hydraulic retention time: 5~10min

※Large purification capacity, namely high surface load

※Small footprint, light unit load, all prefabricated assembly, overhead installation or multi-layer combination mounting

※Low cost of installation and maintenance, easy to clean

※High purification degree, algae and other suspended solids removal rate over 90%, thickened sludge concentration can reach 35%

※Our superficial DAF will use GFA Type dissolved air system with its ingenious structure. The GFA dissolved air system has the strong anti-clogging ability.

（3）Structure and its working principle

Air-floated separation technology is a very good way of purifying water from suspend solid by releasing pressed saturated air water to make its generated air micro bubble contacting with suspended floc fully, which will form flotation sludge to be scrapped out of water by its scrapper .

  Our device is an advanced quick-speed floatation system with all flocculation , floatation, skimming , mud scrapping together under successful use of the "shallow theory" and the "principle of zero speed" to gain high efficiency.

  In order to make up shortcomings of the traditional unit, we design raw water inlet and purified water outlet as movable to save bubble floating time of raw water, namely, while raw water is flowing into the tank, the pool pipe water flow opposite way to make raw water in the pool nearly in static condition , by this way, the bubble can float to the surface quickly like SS flotation speed (4-10 minutes) , meanwhile , the purified water can be drained out when its pipe move here. Due to its compact round design with inlet and outlet pipes installed on rotating rack to generate centripetal moving with nearly zero speed , which will make the suspended solid fast floats on original water surface and then been purified within 3 minutes .

   This equipment is cylindrical and compact in structure, including flotation tank, rotating water distributor, dissolved air release system, rotating rack, water collection device, scum skimmer, dissolved air system, reflux pipe, electric cabinet and etc. Inlet, outlet and sludge discharge outlet are all installed on the rotating area where water distributor, water collection device, dissolved air release system are connected to frame closely, rotating around the flotation tank center.This device provides module integrated equipment assembly by adopting both centralized and decentralized control system to realize the best operating condition.

（4）Process flow diagram