Transcript The Hydroflow Star filter

HYDROFLOW
FILTRATION
SYSTEMS
Hydroflow Filtration Systems
THE HYDROFLOW STAR FILTER
The Star Filter Is
A Packaged
System
Combining The
Dirty Tank, Filter
And Clean Tank
In One Assembly,
Eliminating The
Balance Problem
Of Multiple
Components
The Heart Of The
System, The Star
Element, Is Easily
Removed For
Inspection And
Service
The Star Filter Employs A
Heavy Duty Dragout Which
Provides Complete Removal
Of Solids From The System.
The Star Filter Is A Hydraulic
Vacuum Filter Which Means
The Filter / System Pumps
Only See Filtered Coolant
Resulting In Long Service Life.
The Cellulose Precoat System Is An
Automatic And
Effective Distribution
Method For Adding
Filter Aids.
Hydroflow Filtration Systems Is A Division Of The Andersons Inc. Maumee, OH
* 419-891-2732 * www.hydroflowsystems.com
HYDROFLOW
FILTRATION
SYSTEMS
Hydroflow Filtration Systems
THE STAR ELEMENT
The Star Element
Provides Maximum
Filtration Area In The
Most Compact
Configuration
The Slurry Distribution
Ring Provides Accurate
And Effective Introduction
Of Cellulose Precoat.
The Element's Star
Shape And The Filter
Panel's Compact,
Rectangular Design
Maintain Structural
Integrity After Removal
From The Filter
The Patented Wet Seal Is
A Positive Seal That
Eliminates Solids By-pass
Stainless Steel Wedgewire Or
Patented Fuse-bonded Stainless
Steel Microscreen Filter Panels Are
Constructed To Meet Specific
Customer Requirements
Hydroflow Filtration Systems Is A Division Of The Andersons Inc. Maumee, OH
* 419-891-2732 * www.hydroflowsystems.com
HYDROFLOW
FILTRATION
SYSTEMS
Hydroflow Filtration Systems
THE STAR FILTER OPERATION
The Filtered Coolant Is Returned
Directly to The Machine Tools
Dirty Coolant Enters The Rear
Of The Filter. An Inlet Baffle
Slows The Flow
The Star Filter Provides Two
Stages Of Filtration- 1st Stage Heavy Solids Quickly Settle To
The Bottom Of The Tank And Are
Removed By The Drag Conveyor
2nd Stage Of Filtration -The Star
Element Is Connected To The Suction
Side Of The Pump And Draws The
Fluid Through The Element Trapping
Solids On The Surface.
Hydroflow Filtration Systems Is A Division Of The Andersons Inc. Maumee, OH
* 419-891-2732 * www.hydroflowsystems.com
HYDROFLOW
FILTRATION
SYSTEMS
Hydroflow Filtration Systems
THE STAR FILTER OPERATION
A Portion Of Filtered Coolant
Flows Through An Air Ejector
And Up To The Clean /
Regeneration Tank.
So The Tank Remains
Full And Over-weirs
Back To The Dirty
Tank, Allowing For
Continuous
Recirculation.
The Flow Of Coolant Through The
Air Ejector Creates A Suction
Which Is Used To Draw Any Free
Air Out Of The Top Of The Star
Element
Another Small Portion Of Filtered Coolant Is
Used To Supply The Pressurized Wet Seal
The Clean Tank Is
Connected To The
Suction Pipe.
Hydroflow Filtration Systems Is A Division Of The Andersons Inc. Maumee, OH
The Regeneration Valve Is Closed,
* 419-891-2732 * www.hydroflowsystems.com
HYDROFLOW
FILTRATION
SYSTEMS
Hydroflow Filtration Systems
THE STAR FILTER PRECOAT
Cellulose Precoat Is Used To Provide A True Depth
Cake And Achieve Filtration Below 10 Microns.
The powdered cellulose
is stored in a hopper
that is equipped with an
automatic feeder.
The Cellulose Is Mixed With Clean
Coolant And The Slurry Is Pumped To
The Distribution Ring On The Star
Element.
The Cellulose Is Quickly Drawn To The
Microscreen Surface Creating A Filter
Cake For Trapping Solids
Hydroflow Filtration Systems Is A Division Of The Andersons Inc. Maumee, OH
* 419-891-2732 * www.hydroflowsystems.com
HYDROFLOW
FILTRATION
SYSTEMS
Hydroflow Filtration Systems
THE STAR FILTER FILTRATION
Dirty Coolant Enters
The Filter And Heavy
Solids Settle To The
Drag Conveyor
The Fines In The Coolant Are
Drawn By The Pump To The Star
Element And Trapped In The
Cellulose Depth Cake
Hydroflow Filtration Systems Is A Division Of The Andersons Inc. Maumee, OH
* 419-891-2732 * www.hydroflowsystems.com
HYDROFLOW
FILTRATION
SYSTEMS
Hydroflow Filtration Systems
THE STAR FILTER REGENERATION
As The Solids Are Trapped In The Cellulose the cake
becomes compressed and dense with the weight of the
solids. As the Cake builds it restricts the flow and creates a
negative pressure in the suction pipe. The system sense
the increase in vacuum and initiates the automatic
regeneration cycle.
6
2
5
The following is the
sequence of events:
1.
The regeneration
valve opens.
2.
Coolant from the
raised clean tank
flows by gravity and
supplies the pumps
and additional
coolant flows back
towards the Star
Element.
3.
The backflow of
coolant gently
releases the
compressed filter
cake from the
element.
3
4
4. The dense solids
mass quickly settles to
the conveyor for
removal from the
system
5. A Pneumatic Cylinder
Then Lifts The Element
And Bumps It In The
Wet Seal To Further
Clean The Surface
1
6. Following The Bump,
The Regeneration
Valve Closes And The
Precoat Cycle Begins
Hydroflow Filtration Systems Is A Division Of The Andersons Inc. Maumee, OH
7. A Conveyor Drive Runs On
An Adjustable Timer, And
The Solids Are Allowed To
Dry On The Ramp Before
Being Dumped Into The
Hopper
* 419-891-2732 * www.hydroflowsystems.com
HYDROFLOW
FILTRATION
SYSTEMS
Hydroflow Filtration Systems
BENEFITS OF THE STAR FILTER
 Depth Filtration - Superior Filtration: Hydroflow has been manufacturing roll
media filters for over 20 years and we know their limitations, particularly in
filtration efficiency. Roll media filters rely on building a cake to achieve effective
filtration. Cake building requires a good distribution in the size of solids in the
dirty fluid. And even in the best case, with wheel breakdown to aid in the
distribution, the filters generally only achieve 10-15 micron.
 Filter Area: Flat bed filters offer limited filter area and/or only regenerate a small
section of media at a time. This results in high velocity through the media,
further limiting the ability to build a cake and resulting in excessive media
usage.
 Filter By-Pass: Roll media filters are prone to by-pass as the media has a
moving seal along the entire length and on both sides of the bed. The media is
also subject to tearing or uneven tracking, resulting is gross bypass with no
warning or indication of the problem.
Hydroflow Filtration Systems Is A Division Of The Andersons Inc. Maumee, OH
* 419-891-2732 * www.hydroflowsystems.com
HYDROFLOW
FILTRATION
SYSTEMS
Hydroflow Filtration Systems
STAR FILTER ADVANTAGES
VS
S T A R F I LT E R
F L AT B E D F I LT E R
Large Filter Area
Limited Filter Area
2 Stages Of Filtration
All Solids Must Be Trapped by Media
Depth Filtration Using Cellulose
Surface Filtration On Flat Media
Pressurized Wet Seal –Virtually
Eliminates Solids By-Pass
Moving Seal-Bypass Is Possible Each Time
The Media Moves
Regeneration Of Entire Surface
Maintains Low Velocity
Incremental Regeneration, High Velocity
Through Small Area
Element Backwash, No Moving Belt
Moving Belt, Transporting Out Of Filter
No Vacuum Box
Vacuum Box Is Difficult To Clean
Hydroflow Filtration Systems Is A Division Of The Andersons Inc. Maumee, OH
* 419-891-2732 * www.hydroflowsystems.com
HYDROFLOW
FILTRATION
SYSTEMS
Hydroflow Filtration Systems
THE STAR FILTER ADVANTAGES
VS
S T A R F I LT E R
Wedge Wire Drum Filter
Large Filter Area Of Star
Limited Filter Area Of Drum
Depth Filtration Using Cellulose,
Effective Distribution Of Precoat
Surface Filtration & No Effective
Precoat Distribution.
Pressurized Wet Seal
Rotating Seal On Drum
Element Backwash, No Moving Drum
Or Scrapping
Rotating Drum, Scrapper Blade
Forcing Particulate Into And Through
The Wedge Wire.
Regeneration Off Entire Surface
Maintains Low Velocity
No Vacuum Box
Incremental Regeneration, High
Velocity Through Small Area
Vacuum Box Is Difficult To Clean
Hydroflow Filtration Systems Is A Division Of The Andersons Inc. Maumee, OH
* 419-891-2732 * www.hydroflowsystems.com
HYDROFLOW
FILTRATION
SYSTEMS
Hydroflow Filtration Systems
VS
S T A R F I LT E R
Vacuum Filtration Is A Simple System
And Eliminates Pumping Dirty Fluid,
Complex Valve Sequences And
Multiple Components
Star Element Is Easily Removed For
Inspection And Cleaning
Pressurized Wet Seal
Packaged System With Integral Dirty
Tank And No Large Clean Tanks And
Mixing Tanks
Simple And Effective Precoat System
Pressure Precoat Filter
Pressure Filters Are Complex With
Several Pumps, Valves And
Components That Must Sequence
Precisely For Proper Operation
Dome Filters Are Labor Intensive to
Service, Tube Bundles Are Easily
Damaged And Costly To Replace
Dozens Of Individual Seals Between
Tube And Diaphragm Plate
Multiple Tanks, Interconnecting Piping
And Valves, Difficult To Balance
Manual Or Complex Precoat System
Hydroflow Filtration Systems Is A Division Of The Andersons Inc. Maumee, OH
* 419-891-2732 * www.hydroflowsystems.com