FILTER PRESSES FOR SLUDGE: HOW THEY ARE SIZED We have just said that the sludge filter press is a machine whose purpose is precisely to provide for the dehydration of fluids (more commonly called sludge) of civil and industrial or process origin. GENERAL CONSIDERATION Unlike other devices used in the industrial field (tape press, centrifuge,… Continue reading filter presses for sludge: how they are dimensioned
IMPORTANCE OF LABORATORY TESTS TO SIZING A PLATE FILTER PRESS One of the aspects on which it is necessary to pay attention when sizing a filter press is the need to carry out laboratory tests on a sample sludge in order to determine its filterability. The filterability tests are performed using a laboratory pilot filter… Continue reading Importance of laboratory tests to sizing a plate filter press
OPERATION OF THE OPENING SYSTEMS OF THE FILTER PLATES IN THE FILTER PRESS We have seen previously how one of the discriminating factors regarding how to define a fully automatic filter press is precisely the opening system of the filter plates. Let us now analyse the functioning of the opening systems of the filter plates… Continue reading Operation of the opening systems of the filter plates in the filter press
CHEMICAL COMPATIBILITY OF FILTER PLATES AND THERMAL SHOCK: CORRECT CHOICE OF THE FILTER PRESS We have seen how important it is to size the filter plates and the machine according to the type of process, after carrying out the appropriate laboratory tests to determine the fundamental parameters. At this point, I would like to emphasize… Continue reading Chemical compatibility of filter plates and thermal shock: correct choice of the filter press
FILTER PRESS AND OPTIONALS: WHAT THEY ARE AND WHAT THEY ARE FOR Filter press optionals: Core-blow, cake blowing, cake washing, squeezing, acid washing of the cloths, automatic washing system for washing the filter cloths. But what are these devices for? Before answering this question, it is essential to describe the conformation of a filter plate… Continue reading Filter press and optionals: what they are and what they are for
OPTIONAL FILTER PRESS: CORE-BLOW WHAT IT IS AND HOW IT WORKS The core-blow is an automatic device used for cleaning the delivery pipe and the feed channel which is formed by pairing the filter plates in the filter press. The process involves sending a blow of compressed air, usually between 6 and 8 bars, into… Continue reading Optional filter press: core-blow
OPTIONAL FILTER PRESS: MEMBRANE SQUEEZING. PRESSING OF MEMBRANE PLATES PRESSING OF THE MEMBRANE PLATES We are talking about filter presses with squeezing (squeezing) for all those processes and machines that install a mixed plate pack (companion + membranes) or full membranes. Usually, the membrane plates are chosen in these occasions: – The sludge to be… Continue reading Optional filter press: membrane squeezing. Pressing of membrane plates
OPTIONAL FILTER PRESS: CAKE WASHING Let’s now analyse the Cake Washing for the filter press (also called cake washing). The washing of the cake, partly analysed previously talking about membrane plates and squeezing, allows to: –Eliminate contaminants present in the mud -Recover substances left inside the cake and which are the noble part of the… Continue reading Optional filter press: cake washing
FILTROPRESSA OPTIONAL: CAKE BLOWING Nel filtropressa, il cake blowing è un dispositivo da utilizzare principalmente quando si hanno problemi di distacco della torta dalle tele filtranti durante la fase di scarico della macchina. Questo accessorio svolge una funzione che, per alcuni fanghi che tendono ad incollarsi, diventa molto importante. Oltre a questa importante funzione, permette… Continue reading Optional filter press: cake washing
OPTIONAL FILTER PRESS: ACID WASHING OF THE CLOTHES Let’s analyse a further optional of the filter press: acid washing. When the sludge to be filtered is very sticky or tends to encrust the filter cloths very quickly (causing problems relating to filtration pressure, filtration times, etc.), acid washing of the cloths is the device you… Continue reading Optional filter press: acid washing of the clothes
