Sachin Industries Limited

Automatic Filter Press offered by us make full automation possible by incorporating corner feed plates into its filter press designs. Helping in eliminating center-feed eyes & stay bosses, it removes restrictions to membrane movement & consistently produces more uniformly squeezed cakes. The more uniform cakes in combination with newly developed filter fabrics also allows easy discharge of cake from the plate.

Features:

• Simple cake removal (never before available with conventional fixed-volume)
• An automated filter press that includes programmable logic controller (PLC)
• These 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

Filter Press offered by us is a solid liquid separation device that is based on the principle of pressure feeding. It is used successfully in almost every industrial filtration application over its 150 years of history. Further, it includes series of filter plates & frames or recessed plates that are arranged alternately so as to deliver optimum service standards.

Construction:

• Filter medium is provided in between the plates
• A feeding pump is utilized to force liquid through medium leaving solid trapped inside
• Compared to other pressure filters, filter press holds more solids per square feet of filtering surface area than any other
• A closer is required that can be manual or hydraulically operated
• The closer contains a follower plate that presses the plates together, thus creating a sealed unit
• The filter press is typically less costly to install than compared to rotary drum vacuum filters, belt presses/centrifuges
• It is significantly less expensive & easier to maintain as well as operate than other three and service life has been proven time & time again to be much longer

Benefits:

• Sachin Polypropylene Filter Press are designed in a way to give maximum filtration efficiency & less maintenance throughout its service life
• WE have built solid reputation in market from our designing of filter press that quickly & efficiently do the filtration
• These are optionally available with Epoxy Coated structures, Belt Conveyors, Drip Trays made of PP-FRP, Steel, S. S. and Auto Plate Shifter arrangements
• The FILTER ELEMENTS are available in different sizes & types as well as also come fitted on conventional cast iron structures so as to suit customers’ specific requirements for pressure filtrating
• Wide range of products up to 7 kg/cm2 to 15 kg/cm2
• In India we are a leading company using latest technology in moulding filter plates.

Filter Press Terminology comprise of Tie Bar that includes two bars, mainly horizontal/round that are bolted at their ends to two fixed headers with legs. These bars also support plate pack & other accessories like shifting mechanisms, cloth discharge mechanisms and others. The other parts of the filter press include:

It is composed with:

Plates :

Hydraulic Filter Press offered by us are most widely used because of their user friendly operations. Here, the opening & closing is done using hydraulic cylinder & power pack assembly. Further, the hydraulic cylinder is precision designed for filter press locking instead of ratchet pinion locking.

Two types of Hydraulic locking systems made available by us include:

• Hydraulic cylinder with mechanical lock nut
• Pull back type hydraulic cylinder operated by control panel
• Hydraulic cylinder capacity: 30 to 300 mt, stroke: 150 to 2500mm.

We also offer our quality conscious customers Manual Filter Press where the closing & opening of the filter press as well as cake discharge is manual. Being cheaper in costs and efficient in operations, here the closing is also shifted manually.

We offer customers Plate and Membrane Filter Press that feature shorter cycle time, increased dry solid and reduced filtration time. Other than this, our presses also allow use of membranes on either sides as well as reduce cake washing time. The other benefits include:

• Lesser wash water consumption
• Increased capacity
• Lower operating costs
• Higher quality & valued end product

Process:

• Membrane filter press plates utilize impermeable, flexible members attached to filter press plate core
• In filter presses, membranes also called diaphragm is designed to inflate by compressed air/pressurized water to squeeze residual moisture out of formed filter cake
• Polypropylene membrane plates being supplied have been in use for more than ten years with significant success
• These 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 batch in first 50% of cycle time
• If plate stack is opened before full cycle is complete, result is wet, sloppy cake
• A Membrane Filter Press however can be stopped at most efficient point in its cycle
• By applying pressure to membrane built into filter plate, cake is squeezed to achieve final solids content in significantly reduced cycle time

Improved Cake Washing:

Filter Press India Membrane Filter Presses help in improving cake washing by initiating low-pressure pre-squeeze before wash cycle is begun. This pre-squeeze eliminates channeling (cracks & less well-formed areas of cake) and produces uniform, homogeneous filter cake as well as delivers optimum wash efficiency).

Highest Cake Solids:

• By applying high pressure squeeze to filter cake, users can produce 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 high value liquid is the product, or high solids-content, where reduced moisture in final cake is critical
• It provides dryer cake than can be obtained using high feed pumping pressure in conventional filter press
• It significantly reduces/eliminates downstream thermal drying & associated costs in energy and time

Corner-Feed for Better Filtration:

• We recommend corner-feed plates because of their numerous design advantages for virtually every filter press installation
• Its corner-feed design offers most efficient cake formation & provides even solids distribution through-out plate stack
• Eliminating center-feed eye also allows construction of stronger plate requiring no supporting stay bosses that hamper thorough cake washing & cake discharge