Stainless Steel Multi Media Filter Tank and Vessel for Pre-filtration in Water System
Mechanical filters are also known as pressure filters. It is an important part of pre-treatment and water purification system for pure water
preparation. The material is made of steel lining rubber or stainless steel. It is divided into natural quartz sand filter, multi-media filter, activated
carbon filter, manganese sand filter, etc. according to different filter media. It can be divided into single-flow filter according to the water inlet
mode. Dual-flow filters can be used in combination or on a stand-alone basis depending on the actual situation.
The fully automatic mechanical filter is suitable for industrial and mining enterprises and urban water supply treatment equipment that require
industrial water or domestic water that can meet the drinking water quality standard within 5 mg/L of filtered water. It has a good removal effect
on suspended solids and the like in industrial sewage. The condensed flakes contained in the water are viscous particles which cannot be
removed by the precipitation method, and the water can be passed through the filter layer installed in the pressure filter to make the water
transparent.
filtrate volume flow | available from approx. 1.5 up to 120 m³/h for each line | amount of lines | usually 2x50% | smaller plants also 1x100% or 2x100% | larger plants also 3x33% or 4x25% | filtration grade | approx. 5 ... 25 μm, without flocculation | approx. 0.5 ... 5 μm, with flocculation | filtrate quality | turbidity | ≤ 0.1 ... 1 NTU | total suspended solids (TSS) | ≤ 0.5 ... 1 mg/L | differential pressure at nominal flow rate | usually ≤ 0.5 bar | operating temperature | usuually 5 ... 40 °C | backwash intervals | usually 12 ... 72 h | backwash duration | approx. 15 minutes, for water backwash | approx. 10 minutes, for air and water backwash | backwash water volume flow | usually operating volume flow × 2 ... 4 | waste water | approx. 2 ... 80 L for each 1 m³ filtrate | recommended raw water quality | total suspended solids (TSS) | ≤ 40 mg/L | filter medium | • anthracite coal | • dolomite | • garnet sand | • granular activated carbon | • pumice | • silica sand | • ... | total service life of the filter medium | usually ≥ 10 years for removal of suspended solids only | in some cases ≤ 6 ... 12 months for special applications | material options | pressure vessel | • glass-reinforced plastic (FRP) | • carbon steel | • stainless steel (SS304 / 316) | pipelines | • polyvinyl chloride (PVC) | • polypropylene (PP) | • stainless steel | valves | • polyvinyl chloride (PVC) | • polypropylene (PP) | • stainless steel | gaskets | • etyhlene propylene diene monomer rubber (EPDM) | • polytetrafluorethylene (PTFE) | • NBR composite | control options | differential pressure monitoring | • local display | • remote measurement | filtrate quality monitoring | • manual sampling and analysis | • continuous turbidity measurement | line change-over | • manually | • fully automated | backwash | • manually | • fully automated | |
Detail Pictures