ENVIRONMENTAL PROTECTION FILTER MATERIALS
This product is made of fine e remic mud added achoring agent and binder.
After griding,screening,shaping and sintering.we make it.It is a kind of
globable pellet,of which the size is uniform,the suface is solid.This product
has much me rit,such as large Sunface area,high void fraction.du rinig the
impu rities very well,the speed of filte ring being high.10ng working period,
water consumption is Iittle during washing back.and there js nothing halmfuI
to the body of man.It will decrease the volume of the disfectant and cloud
point,the effect of separating N H3Pis over 99％,and that of separating
CoDcr is over 40％ This product can imp rove the effet of filter material instead
of quadz sand and anth racite.
Chemical composition
Chemical composition
|
SiO2 |
A12O3 |
Fe2O3 |
CaO |
MgO |
K2O+Na2O |
Else |
Content％ |
60-65 |
18-21 |
7-9 |
3-4 |
1-4 |
3-5 |
Tract |
The property of environmental protecting filter and quartz sand
Specification |
Unit |
Environmental protecting filter |
Quartz sand |
Bulk density |
t/m3 |
0.51-1.1 |
1.4-1.6 |
Vold volume |
％ |
40-60 |
16-20 |
Abrasion ratio |
％ |
≤2 |
≥3 |
Hydrochloric acid dissolving ratio |
％ |
≤2 |
≥2.5 |
NaOH dissolving ratio |
％ |
≤2 |
≥2.5 |
Specific area |
cm2/g |
2.5-7.8×104 |
0.15-2.0×103 |
Ununiformation coefficient |
φmm |
1.0-1.3％ |
20-30％ |
Osmosis coefficienl |
cm/s |
2.3-3.63 |
0.19-2.21 |
Peak of flow loss of cleaning filter |
cm/M |
10.1-2.21 |
34 |
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