Honing oil filter

1. Veeraja Industries
A trusted name in
liquid filtration and swarf removal
WORKS
81/3 SHED NO 3, DANGAT VASTI,
NEAR AGARWAL GODOWN,
SHIVANE, PUNE.
TEL : +91 (020) 25294477 , 25291229

2. BACKWASHABLE CANDLE
FILTER
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3. BACKWASHABLE CANDLE FILTER
DIRTY FLUID IN CLEAN FLUID OUT
SPRING COMPRESSES
TOP END FITS INTO
DURING
SEPERATION PLATE
BACKWASHING
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4. WORKING PRINCIPLE
n Candles are made of thin corrugated discs loaded on
hollow pipe with holes.
n Compression is maintained on disc with help of springs
at bottom of each candle.
n Housing is divided in 3 sections :
¨ Lower dirty section
¨ Seperator plate
¨ Upper clean dome
n Numerous candles are mounted on separator plate.
n Hollow pipe of every candle opens in Upper clean dome.
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5. n Dirty fluid in lower section passes from outer area to
inner hollow tube.
n Dirt accumulates on the outer surface of candle.
n Clean fluid passes through hollow tube to Upper clean
dome.
n Dirt accumulation increases the differential pressure,
triggering Backwashing of entire housing(s).
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6. NORMAL CYCLE
N1
BACKWASH AIR PORT
Dirty Inlet and Clean
VENT PORT CLEAN OUTLET
n N7
N2
Outlet valves are OPEN
Pressure differential
PURGE AIR PORT N4
n
between INLET and N3
OUTLET is continuously
DIRTY INLET
monitored
n At pre-set pressure,
signal is given for back-
washing of candles PURGE OIL OUTLET PORT
BACKWASH OIL OUTLET PORT
N6
N5
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7. FILTER DRAIN MODE N1
n INLET and OUTLET valves N7 N2
are closed.
n Purging Valve N3 and Purging N4
drain Valve N6 are OPENED.
n Compressed air is let in N3
through N3 in bottom portion
of housing.
n Dirty fluid in lower section is
drained back into dirty tank.
n After pre-set time both valves
CLOSE
N6
N5
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8. BACK-WASH MODE N1
n Backwash Valve N7 and
Backwash drain Valve N5 are N7 N2
OPENED.
n Compressed air is let in N4
through N7 in top section of
housing. N3
n Pressurized air and clean oil
pass through each candle IN to
OUT into lower section
n Slurry of oil and dirt is drained
through N5 into bin / oil
recovery.
n After pre-set time both valves
CLOSE N6
N5
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9. VENT MODE N1
N2
n INLET and OUTLET valves N7
are OPENED.
n Vent Valve N1 is OPENED. N4
n Housing starts filling up.
N3
n Trapped air escapes through
N1
n After pre-set time Vent valves
CLOSES
n Back-washable cycle is
complete and Housing starts
with NORMAL cycle again.
N6
N5
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10. Typical honing dirt output
( Actual on-site at Maruti-Gurgaon KB3 Block )
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11. APPLICATIONS
n GRINDING
n HONING
n LAPPING
n WASHING FLUID
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12. ONLINE RESULTS ON WORKING
SYSTEMS
8 to 15 PPM
on
0.8 µm
TEST PAPER
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13. LIFE EXPECTANCY
n 25000 WORKING HOURS
n CANDLES NOT REPLACED FOR LAST 5
YEARS IN SYSTEM WITH PRE-FILTER
n OIL NOT RELACED IN LAST 5 YEARS
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14. BENEFITS
n No Pre-coating required.
n No consumables.
n Back-washing takes places automatically.
n Compact design.
n Saves on cost of pre-coat.
n Saves on cost of Oil replacement.
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15. EXCISTING SYSTEMS
n 150 LPM pilot project for Lapping Paste working since 2003
n 500 LPM working since 2004
n 750 LPM working since 2005
n 300 LPM and 450 LPM commissioned in 2006
n 1100 LPM commissioned in October 2007
n 1500 LPM commissioned in January 2009
n 200 LPM commissioned in SKF in January 2009
n 200 LPM commissioned in SKF Haridwar in November 2009
n 300 LPM commissioned in Maruti in January 2010
n 250 LPM installed for Bosch Nasik
n 300 LPM under manufacturing for Nagel
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