POLYSEP 的特征
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■ 滤液生产量长期稳定
■ 简单紧凑的设计保证了操作简单，低故障率
■ 在生产停止时，设备处于低压运转，而节省能源
■ 可与RO装置进行组合设计
■ 在停电等原因而造成该设备停机的情况下，因超滤管的特殊构造，可保证24小时内不会造成膜的堵塞
■ 超滤管的清洗回复率高
实践证明，适合于一种涂料的膜，不能说明它也适合于另外一种涂料，随着涂料技术及电泳涂装技术的发展，大大地促进了膜分离技术的发展．
在涂料分离膜的研制过程中，平膜与其他膜相比，被认为是最适合的分离膜，从而被我公司采用．
我公司成功地开发和研制了分离容量大，而且成本低的超滤管，及其他适合于各种电泳涂料的超滤管．
■ 滤液单位透过量的成本低
■ 滤液透过率：２－３．５Ｌ／ＭＩＮ（根据所使用的电泳涂料的不同而有所不同）
■ 透膜表面积６平方米
■ 透膜与外壳的一体构造，易于安装
UF recovers drag out paint, which is otherwise wasted
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About 20-25% of paint that is supplied to ED-tank is carried out as
liquid paint with jobs being coated. This paint does not form
coating film so it is an enormous waste. UF reclaims more than 95%
of this drag out paint. HOW is it done? ED bath paint is fed to UF filter under pressure. When the paint contacts the UF membrane under pressure, small molecule components such as water, solvent and inorganic salts pass through the membrane's pores, while larger molecule components such as resin and pigments can not pass through the pore and retained on the paint side and is returned back to the ED bath. The part that pass through the membrane is called PERMEATE. PERMEATE is used as the rinse solution after E-coating. As the works come out of the tank they carry out extra paint attached on the work’s surface. This drag out paint is rinsed by the rinsing solution (PERMEATE) and returned back to the paint bath. Net result is to recovery of the drag out paint. |
Improve surface finish
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After E-coating, the jobs are baked in the oven. If the job is not
well rinsed, the liquid paint sitting on the job’s surface will
leave undesirable random marks making a poorly finished surface.
Rinsing jobs surface thoroughly with UF permeate improves finished
surface. |
Controls bath contamination and excessive solvent.
Inorganic salts are carried by the jobs into the ED-bath from pre-treatment tanks. In some case excessive solvent builds up in the bath. Both of these excessive components cause painting problems. UF solves these problems.
How is it done?
As mentioned earlier, PERMEATE contains inorganic salts, solvent and water. So by draining PERMEATE both salts and solvent are removed from the paint bath.
As seen UF is a very important part of the E-coat system, and failure of UF means poor finishing quality and poor economy. Therefore, we kindly request that proper maintenance attention be given every day.
POLYSEP CONSTRUCTION OF UF MODULE
TYPE |
ED-300 |
ED-400 |
ED-500 |
ED-600 |
ED-800 |
MEMBRANE AREA |
3m2 |
4m2 |
6m2 |
13.5m2 |
25m2 |
FLUX |
1--1.5L/ｍｉｎ |
1.5--2L/ｍｉｎ |
2--3L/ｍｉｎ |
4--6L/ｍｉｎ |
8--10L/ｍｉｎ |
POLYSEP 超滤管的构造图
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1 UF膜 |
ＵＦ装置工作流程图
UF滤液长期安定的条件：ＵＦ适合性的管理之［窗］
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为了保证UF滤液供给的安定性，涂料管理值范围是十分重要的条件之一．适合于涂装的涂料管理值范围与适合于ＵＦ装置的涂料的管理值的范围不同，适合于涂装的管理值不一定适合于ＵＦ装置．在对涂料进行管理时，要使管理值既适合于涂装，又适合于ＵＦ装置的正常运转． |