HENAN ZG INDUSTRIAL PRODUCTS CO.,LTD
HENAN ZG INDUSTRIAL PRODUCTS CO.,LTD
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anthracite filter media
Our Minerals products a full range of grades of anthracite filter media. These are produced from the anthracite mined in China, and are sold throughout the world.
Anthracite Filter is often used to produce a multi-media filter.This has several advantages over a single media filter.
* Increased filtration rates
* Longer filter run times
* Reduced backwash water consumption The bed of anthracite placed on top of the sand layer provides the filter with.
* Larger grain particles on the surface of the filter which delays the pressure drop across the filter.
* A larger reservoir in which the floc may be held before backwashing.
* A prefilter for sand filter below.
The grade of anthracite filter media is chosen so that it has a similar backwash expansion as the sand below it. This is important to prevent losses of anthracite during backwashing.
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Physical Density
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Specific Gravity
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1.4~1.6 g/cm3
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Bulk Density
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800 – 850 g/m3
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Hardness (Mohs)
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3 ~ 4
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Hardgrove
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44 – 50
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Density Above 1.8g/cm3
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8% max
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Porosity
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50% min
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Mud Content
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4% max
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Attrition Losses (100 hours backwash)
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<0.4%
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Solubility (24 hours 10% HCI)
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<3.5%
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According to the standard "CJ 24.2-88" of Ministry of Construction R.R. of China
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Chemical Composition
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Carbon
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85%
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Bash
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4 – 8%
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Volatile
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5.0 – 7.0%
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Standard Size
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0.6 – 1.2 mm
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0.66 mm
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0.8 – 1.6 mm
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0.88 mm
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1.2 – 2.5 mm
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1.31 mm
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1.4 – 2.5 mm
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1.52 mm
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1.4 – 2.8 mm
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2.5 – 5.0 mm
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1.55 mm
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5.0 – 10.0 mm
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Within size range
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10.0 – 20.0 mm
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Unigormity Coefficient
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≤1.6
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