slurry or viscous fluid pump
SLURRY OR VISCOUS FLUID PUMP THINGS TO CONSIDER WHEN CHOOSING A SLURRY OR VISCOUS FLUID PUMP When choosing a slurry pump for your system,
Plate filterpresses for purification plants and industrial water.
Plate filterpresses for chemical and process plants.
Plate filterpresses for mining/minerals and metallurgy.
Plate filterpresses for the battery recycling sector - Lead Paste.
Plate filterpresses for pharmaceutical sector.
Plate filterpresses for food sector
The plate filterpress is an industrial machine whose purpose is to separate the solid fraction from the liquid fraction in relation to a certain flow of fluid (in jargon called sludge) pumped into the machine itself.
By means of a series of different filtering elements and a certain available useful volume, the filter press s dehydrates the incoming sludge and concentrates the solid fraction into what is commonly called a residual cake (which is then discharged and subsequently disposed of or reused depending on the process in which we are involved).
The plates are designed to create, once aligned, a series of chambers where the sludge is pumped through a feed hole common to all the plates.
Initially, the filterpress is closed by an hydraulic system (one or more pressure cylinders) which are not used to press the sludge but simply align the plates and keep them pressed together, so as to guarantee tightness and counter pressure to that of the feed pump.
The sludge, in fact, is pumped in by the pump, is pushed into each chamber, filling them, and begins to press on the filter cloths according to the pressure induced by the filtration pump.
In this way the solid particles are retained on the cloths, while the liquid phase passes through them and is channelled back into the system in a separate line, ready to be reused.
As the filtration continues, the solid particles accumulate inside the chamber to create a kind of tile, called a cake.
When the system decides that the desired concentration has been reached inside the chamber (usually by controlling the flow of clean water and the filtration pressure), the sludge pump is stopped, the pressure of the sludge and the hydraulic filter closure is discharged, and the filter press opens, spacing the filtration plates and discharging the solids in the form of filtration cakes. The discharge speed depends on the model of filter press, and the auxiliary devices used.
Our filter presses are essentially classified according to the degree of automation installed in the machine and according to the plate opening system. Each machine has its own peculiarities and is more or less suitable for a certain category of sludge or fluid to be dewatered
Within each model it is then possible to install more or less optional extras and accessories to make the machine even more powerful and complete the installation of the dehydration system. Consult each specific page to find out which type of machine is most suitable for you.
This type of machine represents the basic version of the filter presses supplied by Autemi. The opening and closing of the filtering pack is managed by acting on the electrical control panel with a special button which controls the opening or closing of the hydraulic cylinder moved by a hydraulic power unit.
The detachment (opening) of the individual plates is carried out manually by one or more operators depending on the size of the machine.
This model of filter press automatically manages the filtration cycle.
This type of machine is particularly suitable for sludges that are difficult to filter, have long filtration times and tend to remain stuck during opening. The automatic plate shaking system allows the sludge that has remained attached to the cloths to fall off and detach.
This kind of filter press is different from the APF series only in the opening system of the filtering plates-pack.
This machine can be designed with a single or multiple filtering pack, depending on the volume of sludge to be treated.
The SPF model is particularly suitable for sludges that are easier to filter and have a short filtering time.
Plate and frame filter presses are specifically designed for the clarification of pharmaceuticals, chemicals, antibiotics and bacteriological products.
These Inox filter presses also find massive use, in larger size sizes, in the beverage and dairy industries and in breweries and distilleries.
When the characteristics and filtering properties of the sludge are not known and preliminary tests are required, a good solution is to make a small laboratory filter that acts as a pilot plant.
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