稀土瓷砂

稀土瓷砂滤料潘加了稀土改性剂，采用科学配方，经专门成形和高温烧制而成，与传统的石英砂和无烟煤滤料相比，

具有以下优点：

1、球形表面，空隙率大，滤速一般为15~20m狮，床层水头损失小，可以降低滤池高度，节省电耗和基建费用；

2、颗粒均匀规整，易清洗，反冲洗强度一般为12~20/rrfS反冲洗的耗水量可减少30~50%；

3、孔容大，比表面积大，截污量大，一般为9~10 kg/m',是石英砂滤料的12N15倍，

4、强度高，磨耗小，不会破损，使用寿命可达15年以上；

5、耐腐蚀，不流失、无污染，无溶出有害物，保证水质稳定。

稀土瓷砂滤料广泛用于滤池，机械过滤器中做过滤介质，有效处理各种进水和污水，还可用于烟气除尘器中做滤料，

过滤除去各种工业粉尘和锅炉烟尘。

Ceramic sand filters are doped with rare earth element and processed by mix,shaping and sintering.Compared with traditional sands and coal filter material,ceramic sand filters have great advantages as follows:

1、Shaped in sphere,the ceramic filtier sand has a high void space,normally,its filtering velocity is 15-20 m3/h,less loss water-head,and suitable to reduce the height of filter bed and cut down the electric power and constructional expenses;

2、Uniform and regular in particle size,make it easy to be cleaned,the back-flus strength is 12-20 l/m2.s;It can save the back-flush water more than 30-50%;

3、High surface area,large poer volume,the ceramic sand filter is of great amount of pollutant entrapment,up to 9-10Kg/m3,about 1.2 to 1.5 times that quartz sand filter of 7.8-9Kg/m3;

4、Great mechanical strength,less abrasion loss,and never be damaged,the ceramic sand filters can serve for a long life moer than 15 years,is the 5 times or longer than that of quartz sand filters;

5、Corrosion resistant,no run-off and no harmful substance dissolved out,the ceramis sand filters can ensure the treated water in consistent quality without any secondary pollution may c aused by the filter as quartz sand or coal filters itself.