epoxy painted filters side stream filtration of cooling water
Specifications :
? One vertical cylindrical Mild steel/FRP pressure vessels with dished ends. Mild Steel pressure vessel are painted internally with anticorrosive
bitumastic paint and externally with a protective coat of red oxide primer.
? One set of internal water distribution & collection system.
? One initial charge of filter sand & underbed material
? One set of frontal pipe work & valves.
? Two pressure gauges to monitor head loss across the filter.
? One orifice board (optional) for indicating wash water flow to be fitted in drain sump. Maximum / minimum operating pressure will be
3.5kg/cm2g & 2.0 kg/cm2g respectively.
? Multigrade sand filters are available from 600 to 3000mn diameters
Advantages :
? Higher specific flow rate than conventional down flow filters thereby saving on Space & cost.
? Very little maintenance required.
? Lower backwash water requirement.
? In most cases, raw water can be used for backwash.
Applications :
? The Multigrade sand filters filter is an ideal choice for all applications where a conventional sand filter is used.
? It is extensively used in side stream filtration of cooling water & in potable water treatment.
? It is ideal for filtration of clarified water.
? In addition it finds application in sea water filtration & in filtration of chemical solutions.
? For these types of filtrations rubber lined or epoxy painted filters can be offered.
Working principle:
For the by-pass filtration, the filter is installed in the main circulating pipeline to filter all the circulating water,
but apart of the circulating water led from the main circulating pipeline is filtered, which is a repeated
circulatininterception step by step to filter the impurities within the system and finally remove the impurities
by thenecessary backwash out of the system. Installing a by-pass filter in the circulating water system can
prevent the terminal pipe of device from sludge blocking and remove the impurities in the system with
chemical dosing.
By-pass filtration is used to reduce the turbidity of the water circulation system, exactly, to reduce slime
and
prevent its deposition in the heat exchanger, so that the effect of agent will be better.
Generally speaking, if your filter is a quartz sand filter, it usually has two main functions:
1. To reduce suspended solids (turbidity). Otherwise, as the system is running, suspended solids increases
, which will exacerbate the deposition and other problems.
2. Degreasing. Especially the oily turbid circulation, such as steel rolling and continuous casting, has high
oil content and is easy for breeding microorganism and blocking the nozzles.
Parameters
Pressure rating: 0.25Mpa~2.5Mpa
Single filter flow :2-50 m3/hour
Working temperature range: 0 ~ 65 °C
Effluent turbidity:less-than 3
Inlet and outlet Connection: flange
Backwash water: for total filtered water 1 to 3%
Control mode: pressure control; PLC timing control
Sewage way: automatic
Rated operation voltage: can be customized
Model |
Flow Rate
(m3/H) |
Inlet and outlet
(mm) |
Filter area
(m2) |
Diameter
(mm) |
Height
(mm) |
YLD-SF-800 |
15-25 |
50 |
0.5 |
800 |
960 |
YLD-SF-1000 |
23-39 |
50 |
0.79 |
1000 |
1200 |
YLD-SF-1200 |
33-55 |
80 |
1.13 |
1200 |
1400 |
YLD-SF-1400 |
45-75 |
100 |
1.54 |
1400 |
1600 |
YLD-SF-1600 |
60-100 |
100 |
2.01 |
1600 |
1800 |
YLD-SF-1800 |
75-125 |
150 |
2.54 |
1800 |
1950 |
YLD-SF-2000 |
95-155 |
150 |
3.14 |
2000 |
2150 |
YLD-SF-2200 |
115-190 |
150 |
3.80 |
2200 |
2250 |
YLD-SF-2400 |
130-210 |
150 |
4.52 |
2400 |
2300 |
YLD-SF-2600 |
145-225 |
150 |
5.3 |
2600 |
2400 |
YLD-SF-2800 |
155-240 |
200 |
6.15 |
2800 |
2500 |
YLD-SF-3000 |
170-255 |
200 |
7.00 |
3000 |
2600 |
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