Chemical properties

 

AL2O3 SiO2 Fe2O3 MgO CaO
22-24% 68-74% <1.0% <0.7% <0.5%

 

physical property

project index project index
granularity(mm) 0.5-3.0 Excessive water(t/m2.h) 2-3
Compressive strength (n / piece) 30-150 Gas throughput(m3/m2.h) 1500-2000
Attrition rate(%) <0.5 Loose bulk density(g/ml) 1.1-1.5
Acid resistance(%) >98 Voidage(%) 40-45
Alkali resistance(%) >92 Applicable temperature(℃) -80~1200

Advantage

 

The initial head loss of the ceramic sand filter bed is small, which is very beneficial for prolonging the working period of the filter bed;

 

Porcelain sand has a large amount of sewage interception, generally within 9-10kg / m3, which is 1.2-1.5 times of that of the filter (7.8-9kg / m3);

 

The ceramic sand has a spherical surface, which is easy to clean. The water consumption of backwashing is 30-50% lower than that of quartz sand;

 

Porcelain sand has large strength and low abrasion rate, and its service life is more than 5 times longer than that of quartz sand filter material;

 

The ceramic sand filter material is uniform and regular, easy to be filled, not easy to be lost, no harmful substances dissolved and no secondary pollution. It is especially suitable for pre-treatment filter material or resin supporting layer in ion exchange and reverse osmosis treatment devices, and it can also be used as the cushion of activated carbon adsorber;

 

According to the water quality, after special process treatment, it can also be made into multi-purpose filter materials such as iron and manganese removal porcelain sand, fluorine removal porcelain sand, etc., or as coarse-grained filter material for oil-bearing wastewater treatment, biological filter material for biological filter, etc., to remove iron, manganese, fluorine, oil and other organic pollutants.

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稀土瓷砂滤料

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产品介绍

     概述    

    　　稀土瓷砂是由多孔陶瓷原料掺加稀土原料精制而成，它具有极强的过滤吸附能力，高强度、低阻力、耐腐蚀、无毒性、再生简单、使用寿命长等点。

           传统的石英砂、花岗岩、无烟煤等滤料孔隙率低，比表面积小，截污能力差，产量低，水质不稳定。过滤周期和使用寿命短，难以满足各种成份复杂的工业废水 处理和污染日渐加重的生活用水、工业用水深度处理的要求。我公司从八十年代初开始针对传统滤料存在的缺陷，并根据国外新型滤料研制的经验，采用优质高岭 土、粘结剂、成孔剂、稀土抗蚀剂，经高温烧制成外观白色，质地坚硬，颗粒均匀，微孔发达，孔隙率大，圆度饱满的新型滤料——稀土瓷砂。

     化学性能

     

    AL2O3 SiO2 Fe2O3 MgO CaO
    22-24% 68-74% <1.0% <0.7% <0.5%

     

     物理性能

    项目 指标 项目 指标
    粒度(mm) 0.5-3.0 水通过量(t/m2.h) 2-3
    抗压强度(N/颗) 30-150 气体通过量(m3/m2.h) 1500-2000
    磨耗率(%) <0.5 松散容重(g/ml) 1.1-1.5
    耐酸度(%) >98 空隙率(%) 40-45
    耐碱度(%) >92 适用温度(℃) -80~1200


     优点

    　　 瓷砂滤床初始水头损失小，对于延长滤池工作周期十分有利，瓷砂滤床终止水头损失小，可以降低滤池高度，节省基建费用；
    　　 瓷砂截污量大，一般在9~10kg/ｍ3以内，约英砂滤池截污量（7.8~9kg/ｍ3）的1.2~1.5倍；
    　　 瓷砂为球形表面，易清洗，反冲洗耗水量比石英砂降低能30~50%；
    　　 瓷砂强度大、磨耗率小，一般比石英砂滤料使用寿命长5倍以上；
    　　 瓷砂滤料均匀规整，装填方便，不易流失，无溶出有害物，无二次污染，特别适应于离子交换、反渗透处理装置中做预处理滤料或做树脂承托层，也可以用于活性炭吸附器的垫层；
    　　 根据水质情况，经特殊工艺处理，还可以做成除铁除锰瓷砂、除氟瓷砂等多用途滤料，或作为含油废水处理的粗粒化滤料，生物滤池的生物滤料等，去除铁、锰、氟、油及其它有机污染物。