Precautions for polishing resin filling
Date:2021-01-13
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Polishing resin is generally used at the end of ultra pure water treatment system to ensure that the effluent quality of the system can maintain the water standard. Generally, the effluent quality can reach more than 18 megohm, and has certain control ability for TOC and SiO2. The ion type of polishing resin is h and oh type, which can be used after loading without regeneration. Generally used in semiconductor industry.
Filling precautions < br / >
1. Polishing resin is composed of hydrogen type strong acid cation exchange resin and hydrogen oxygen type strong basic anion exchange resin.
2. In the operation, if you need to add water to facilitate filling, please note that pure water must be used, and the water content must not be too much. At the same time, the water must be pumped out or drained immediately after the resin enters the resin tank to avoid resin stratification.
2. If you need to load resin by hand, please wash your hands and do not bring grease into the resin tank.
3. In order to replace the resin, the tank and the water collector must be completely cleaned, and there must be no residual old resin at the bottom of the tank, otherwise the used resin will pollute the water quality.
4. The O-ring used and the urgent one must be replaced regularly. At the same time, the relevant parts and components must be checked every time they are replaced. If they are damaged, they must be replaced immediately. Check the water collector and remove any blockage.
5. If FRP tank is used as resin bed, the water collecting pipe should be left in the tank before filling with resin. In the process of resin filling, the water collecting pipe should be shaken from time to time, so that the position of the water collecting pipe can be adjusted and the upper cover can be installed at the end.
6. If the resin is filled first, it will be difficult to insert the header. If it is necessary to fill resin before inserting into the water collecting pipe, the FRP tank filled with resin can be placed horizontally on the ground, the tank can be rolled slowly to loosen the resin, and then the water collecting pipe can be inserted into the resin slowly.
7. After the resin is filled and connected to the pipeline, the vent at the upper end of the tank should be opened first, and the water should be slowly pumped in until the vent overflows and there are no more bubbles, and then the vent should be tightly closed to start water extraction.