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Sachin Industries Ltd.

Plate & Frame Filter (Filter Press)

Product Specifications

Filter Press:

SIZES AVAILABLE :

305mm X 305mm	760mm X 760mm	1000mm X 1000mm	1500mm X 1500mm
460mm X 460mm	800mm X 800mm	1175mm X 1225mm	Circular Sizes	Odds
610mm X 610mm	915mm X 915mm	1200mm X 1200mm	Circular Sizes	Odds

Product Description

Filter Press:

The filter press is a solid liquid separation device using the principle of pressure feeding. It has been used successfully in almost every industrial filtration application over its 150 years of history. It includes a series of filter plates and frames or recessed plates which are arranged alternately. The filter medium is provided in between the plates. A feeding pump is utilized to force the liquid through the medium leaving the solid trapped inside. Compared to other pressure filters the filter press holds more solids per square feet of filtering surface area then any other. A closer is required which can be manual or hydraulically operated. The closer containing a controlling a follower plate presses the plates together, creating a sealed unit.

The filter press is typically less costly to install than compared to rotary drum vacuum filters, belt presses or centrifuges. It is significantly less expensive and easier to maintain and operate then the other three, and service life has been proven time and time again to be much longer.

SACHIN POLYPROPYLENE FILTER PRESS are designed in such a way to give maximum filtration efficiency and less maintenance throughout its service life. WE have built a solid reputation in the market from our designing of filter press which quickly and efficiently do the filtration.

SACHIN FILTER PRESSES are optionally available with Epoxy Coated structures, Belt Conveyors,Drip Trays made of PP-FRP, Steel, S. S. and Auto Plate Shifter arrangements

SACHIN POLYPROPYLENE FILTER ELEMENTS are available in different sizes and types and also fitted on conventional cast iron structure to suit customers specific requirement for pressure filtrating or wide range of product up to 7 kg/cm2 to 15 kg/cm2. In India we are newest with the latest technology in molding the filter plates.

Plate & Membrane Filter Press:

	Shorter eyele time
		Increased dry solid
		Reduced filtration time
		Membranes can be used on either side
		Reduced cake washing time
		Lesser wash water consumption
		increased Capacity
		lower operating cost
		Higher quality and valued end product

Membrane filter press plates utilize an impermeable, flexible member attached to the filter press plate core. This terminology should not be confused with sub micron "membranes" used in ultra filtration or reverse osmosis. In filter presses, a membrane, also called a diaphragm, is designed to inflate by compressed air or pressurized water to squeeze residual moisture out of the formed filter cake. Polypropylene membrane plates supplied in FILTER PRESS INDIA Filter Presses have been in use for more than ten years with significant success. Theses plates are currently in many severe applications - some operating two cycles per hour, 24 hours per day for two years - tens of thousand of cycles without failure.

MEMBRANE FILTER PRESS PROVIDES:

Reduced Cycle Time
Improved Cake Washing
Highest Cake Solids

Reduced Cycle Time: Conventional filter presses filter only 75-80% of the batch in the first 50% of the cycle time. If the plate stack is opened before the full cycle is complete, the result is a wet, sloppy cake.

A Membrane Filter Press, however, can be stopped at the most efficient point in its cycle. By applying pressure to the membrane built into the filter plate, the cake is squeezed to achieve final solids content in a significantly reduced cycle time.

Improved Cake Washing :

FILTER PRESS INDIA Membrane Filter Presses improve cake washing by initiating a low-pressure pre-squeeze before the wash cycle is begun. This pre-squeeze eliminates channeling (cracks and less well-formed areas of the cake) and produces a uniform, homogeneous filter cake and optimum wash efficiency. Highest Cake Solids: By applying a high pressure squeeze to the filter cake you produce the final cake with solids content from 50 to 100% greater than can be achieved with conventional filter presses. This is important for both maximum yield, where a high value liquid is your product, or high solids-content, where reduced moisture in the final cake is critical.

A FILTER PRESS INDIA Membrane Filter Press provides a dryer cake than can be obtained using high feed pumping pressure in a conventional filter press. It significantly reduces or eliminates downstream thermal drying and associated costs in energy and time.

Corner-Feed for Better Filtration :

FILTER PRESS INDIA recommends corner-feed plates because of their numerous design advantages for virtually every filter press installation.FILTER PRESS INDIA features this design in its Membrane Filter Presses as well as in conventional filter presses.

Corner-feed design offers the most efficient cake formation and provides even solids distribution through-out the plate stack. More importantly, eliminating a center-feed eye allows construction of a stronger plate requiring no supporting stay bosses which hamper thorough cake washing and cake discharge.

With a center-feed filter plate, cake washing is difficult due to wash water "short circuiting" through the open center-feed eye. Corner-feed is the only plate design which insures thorough cake washing integrity.

Automated Filter Press:

FILTER PRESS INDIA made full automation possible by incorporating corner feed plates into its filter press design. Eliminating center-feed eyes and stay bosses removed restrictions to membrane movement and consistently produces more uniformly squeezed cake. A more uniform cake, in combination with newly developed filter fabrics, allows easy discharge of the cake from the plate.

Simple cake removal, never before available with conventional fixed-volume, recessed-chamber plate filter presses, allows FILTER PRESS INDIA to automate your filter press. An automated filter press includes a programmable logic controller (PLC) and may be supplemented with a local control panel, CRT, or touch-screen panel.

Available automation includes :
Opening and Closing Process Valve Operations: Filtration Wash Squeeze Automatic Plate Shifting Conveyor Operation Cloth Washing Where high production rates are desired, a fully automated FILTER PRESS INDIA Membrane Filter Press will usually outperform conventional filter presses and other equipment such as rotary drum vacuum filters, centrifuges, and belt presses.

Hydraulic Filter Press:

Most widely-user friendly filter press

Opening & closing is done hydraulic cylinder & power pack assembly

Hydraulic cylinder is designed for thefilter press locking instead of ratchet pinion locking

Two types of Hydraulic locking system available

Hydraulic cylinder with mechanical lock not
pull back type hydraulic cylinder operated by control panel

Hydraulic cylinder capacity : 30 to 300 mt,stroke : 150 to 2500mm.

Manual Filter Press:

Closing and Opening of The filter Press is manual

Cake Discharge is manual

Cheaper in cost

Closing Plates are shifted manually

Filter Press Terminology:

Tie Bar : Two bars, mainly horizontal or round, which are bolted at their ends to two fixed headers with legs. This bars also support the plate pack as well as other accessory like shifting mechanisms, cloth discharge mechanisms etc.

Main Body (Head Plate) : There are connections for sludge feed and filtrate outlet and is usually fixed to the foundation.

Half Round Body : It houses the pull back type hydraulic cylinder and hydraulic unit.

Moving Body (Tightening Body) : It contains the mechanical or hydraulic components that open and close the press. It also refers to end body of the filter press. It slides on the tie bars. It is moved by the hydraulic cylinder.

Hydraulic Unit : It operates the hydraulic cylinder for open / close operation of the press.

It is composed with:

Hydraulic Cylinder (Pull back type operated by a electric control panel
Automatic Distributing Valve.
Hydraulic unit for cylinder operation.
Pressure switch for automatic reinstatement of closing
Pressure switch for starting the feeding pump.
Pressure gauge for pressure control.

PLATES :

Chamber Plate : A single plate with a recessed cavity on both sides for the retention of the cake solids. A filter cloth covers the plate completely and is attached to the plate around the out side edge of the plate, normally with plastic ties, with this style of the plate, the filter cloth is used as a seal between the plates.
Chamber plate - Gasket : A single plate with a recessed cavity on both sides for the retention of the cake solids. A groove is cut into the recessed area of the chamber and the filter cloth is installed into the groove, below the outside seal surface of the plate. A separate groove is cut into the seal surface for the installation of an o-ring gasket, which provides the seal between the plates.
Closing Force : This is the force required to hold the press closed while under pressure from the opposing force of the incoming slurry. This force holds the plate pack closed so that the slurry will not leak from between the plates. Closing force can be supplied by means of hydraulic cylinder or mechanically.
First Plate / End Plate : In any filter press, there is one first plate and one end plate. First plate is attached with the feeding side main body with the connections.Similarly the end plate is placed behind the plate pack. They have one side recessed and one side plain.
ELECTRIC CONTROL PANEL : Manufactured in painted Mild Steel, complete with :
- Main three - phase switch with safety locking door device Timer for No. of hours of run.
- Starters for every single user including contractors and overload protections
- Light indication for every operation
- All necessary relays, contractors, Limit switches and valves
- Water Proof protection
- Terminal strip for connections to filter press and all ancillary equipment

Control of :

Hydraulic unit for open / close
Automatic plate shifting unit
Feed system (Pump)

Membrane Filter Plates:

The membrane squeeze plate is offered to suit up to 435 psi / 30 bar squeezing pressure. Due to additional liquid extraction during the squeeze cycle, solid percentages increases. Filtration cycle time are reduced compared to the conventional recess chamber plate(Plate and frame) filter press, resulting in Benefits of membrane plates v/s chamber plates. Conventional type filter presses are limited to using feed pump discharge pressure to produce dry solids, resulting in longer cycle times.

The membrane squeeze plate reduced the long packing cycle by introducing a squeeze medium in to the center of the membrane squeeze plate. This allows the membranes to flex against the cake, compressing and packing it. Filtration cycle are shorter, dry solids are increased, and waste volume is reduced.

This membrane are designed to do water the most difficult sludge and protect the plates against potential cake less chambers.

The high pressure membranes were developed for difficult filtration processes. Extreme squeeze pressure are possible due to the combination of the special feed inlet design and selected special materials.

FEATURES AND BENEFIT OF MEMBRANE PLATE V/S. CHAMBER PLATE

Shorter cycle time
Increased dry solids
Reduced filtration time
Easily replaceable
Membrane are common and cab be used on either side of the plate
Pip style drainage surface design for uniform flex.
Reduced cake washing time
Lesser wash water consumption
Increased capacity
Lower waste disposal cost
Lower operating cost
Excellent cake discharge
Higher quality and valued end product

HOW MEMBRANE PLATES WORKS:

Membrane plates are constructed in the same basic method as the recessed chamber plates. The drainage surface of the plates, however, are flexible. After filtration, when the chamber are filled with solids and while the filter press is stilled, air pressure is exerted behind the flexible drainage of the plate. The membrane in turn inflates or flexes outward and exert pressure on the filter cake which have been formed. The cakes are then squeezed to reduce the amount of remaining moisture prior to cake discharge.

Recessed Chamber Fiter Plates

Center feed type-most widely used for solid liquid separation filtra/filtration
P.P. Chamber plates are manufactured form virgin polypropylene co-polymer composions0-natural colored
available in both-gasketed and non gasketed styles
wash types.Non-Wash Type and counter Wash types available
cake/ plate thickness to suit feed pressure up to 20 bar varied
Sizes available :305 mm2 to 15000mm2, round and in odd size

Plate & Filter Plates:

Top Feed -old conventional type
Separately moulded to Facilitate cake Forming
Easy to replace filter cloth
Uni firm Cake thickness
More filtration area
Better Washing and feed Pressure up To 5 Bars

Ceramic Plates:

Plates and Frames are made of light, hygienic, chemical resistance polypropylene. They are easy to handle and practically maintenance free. Plates and frames are uniquely suited for basic filtration processes. They have been proven reliable and efficient in chemical processes, the beverage industries, and biochemical, pharmaceutical, and blood and plasma applications. The sizes are from 610mm to 1200mm.

Profile:

We at Sachin Filtech, are a team of highly qualified and professionally experienced Chemical engineers, Chemist and Plastic technologists & Mechanical Engineers equipped with in house facilities of polypropylene moulding, Foundry, Machine Shop, Assembly Shop, R & D wing with a zeal to work by heart & committed to provide the best in the line with continuous up gradation of quality measures for Customers entire satisfaction by assessing their needs in depth, be it designing & manufacturing of required filtering equipment & timely supply or service for local and Export shipments.

The Group is Chaired by Mr. K.D. Patel (M.sc.) who started this illustrious journey of manufacturing and exports of filter press in 1982.

SACHIN FILTER PRESSES are Designed Manufactured and Supplied to give maximum filtration efficiency and least maintenance with longest life, making us the market leader in the industry.

SACHIN POLYPROPYLENE FILTER ELEMENTS are manufactured from virgin Polypropylene Co-polymer composition in natural white colour with circular corners for longer cloth life and high sloped recess for easy fall of cake. They are available to suit high pressure and high temperature filter application for specific requirement.s a filter cake builds in the chamber, liquid flows through the particulate bed, through the filter medium, across the drainage surface of the filter plate, and is collected from the filter through drainage outlets. When the filtration cycle is completed the closing force is released and the filter plates are separated, permitting the filter cake to be discharged from the chambers.

If you like to request a quotation or consult with our filtration experts, please e-mail, fax or phone us. We appreciate your valued comments and suggestions to serve you better.

What is Filter Press ?

Filter Presses are liquid/solid separation devices that utilize feed pressure and, in some cases, squeeze pressure to reduce the liquid content in process or waste slurries or, to reduce solid content in a product (clarification). Filter presses consist of a series of horizontally arranged vertical filter elements, each dressed with a synthetic woven material, paper, or felt medium. The filter press also consists of a skeleton to support the filter plates and a closure mechanism to provide the necessary force on the sealing faces of the plates to counteract the applied force of filtration (squeezing).

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