Filter Cloth: The Core of Your Filter Press

Filter cloth is more often than not the most neglected and overlooked item on a filter press. The use of the correct filter cloth for your application, and proper filter cloth maintenance, is undeniably key to

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&#;        Optimal Productivity

&#;        Good flow rates and throughput

&#;        Short cycle times

&#;        Excellent cake release

&#;        Lower differential operating pressure

&#;        Clear filtrate

&#;        Maximum media / cloth life

&#;        Long filter plate life

&#;        Good Labor utilization

&#;        Minimal press operational costs

With competitive price and timely delivery, BRIGHT sincerely hope to be your supplier and partner.

ErtelAlsop can assist you with proper fabric selection, (with slurry testing where necessary) to insure you have the best possible fabric and weave, with the proper fabric finishing operations for your application, as well as providing good particle retention, clear filtrate, high flow rates, and dry cakes.

Proper filter cloth maintenance is easy and should become part of your filter press operational routine. To optimize your filter press production and quality, and to minimize operational expenses, it is recommended that you:

&#;        Record the length of your first two or three press cycles when you begin with new (or properly washed / cleaned) cloth. Write the time down in a prominent location.

&#;        When your cycle increases in time ~ 10 to 15%, (and the cycle will always increase over time) STOP and clean your cloth.

&#;        Whenever the cycle (with freshly cleaned cloth) does not return back close to the original time, it&#;s useful life has been consumed, so STOP and install new cloth.

&#;        Always keep a spare set of cloth on the shelf to prevent downtime and problems associated with an out of service press. (Lead-times on replacement cloth typically run 3 to 4 weeks) As soon as you use the spare cloth, order another set

&#;        If you are using caulk & gasketed plates you may even want to consider maintaining a cleaned, &#;pre-dressed&#; set of plates to minimize press downtime.

&#;        If a few cloths in any press are damaged, worn or blinded, replace the full set so as not to set-up differential chamber pressure which will lead to plate failure.

&#;        Always use a thermoplastic cake scraper with rounded edges to minimize cloth wear, and to prevent cloth damage. NEVER use a steel putty knife or scraper!

Contact ErtelAlsop today to learn more about filter cloth optimization, replacement, maintenance, or to discuss any other questions that you may have!

The document discusses plate and frame filter presses. It describes that the key considerations for operating this machine are selecting an appropriate filter medium and determining if the cake produced is compressible or incompressible. Filter aids may also be used to improve filtration rate or clarity. The rate of filtration depends on factors like pressure drop across the filter, surface area, viscosity, and resistance of the filter cake and medium. Selection of the filter medium and equipment depends on traits of the fluid and solids as well as operating parameters. Plate and frame presses offer advantages like versatility, low maintenance, and ability to handle both cake and liquid, but require intermittent operation.

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