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AUTOMATIC FILTERPRESS
WITH SIMULTANEOUS OPENING SYSTEM
This kind of filterpress differs from the APF series only in the opening system of the filter pack.
The filtration cycle is controlled automatically by the PLC of the machine and also in this case it is possible to adjust the process parameters to obtain the best final result.
The opening of the pack takes place simultaneously, so that the filtering plates opens all together at the same time.
This model is also equipped as standard with a plate pack shaking device.
This machine can be equipped with a single filtering pack or a multiple filtering pack (up to 6 packs of plates) depending on the volume of sludge to be treated.
The SPF model is particularly suitable for easier-to-filter sludge with a short filtration time.
Filtration cycle: Automatic
Plate opening: Automatic – Simultaneous
Other functions of the filter press: Automatically managed by the PLC
Operator presence: Supervisory only
Suitable for: Sludge with good drainability – Fast filtration
Plate dimensions: from 500×500 to 1500×1500
Mixed safety protections consist of a pair of light curtains on the operator side and a fixed polycarbonate panel with a painted carbon steel support structure.
Installation of light curtains on both sides of the machine (operator and opposite). Facilitates maximum accessibility of the machine.
When you want to provide shelter from splashes that may occur during washing or you want to protect the operator from sludge leakage, you should install sliding guards on both sides.
Process of membrane squeezing inside the plates (these plates are specially designed for this purpose). It is useful to increase the % dryness that can be obtained with the standard filtration process.
With this kind of discharge, the filtrate comes out from the lower part of the plate and through a curve is conveyed into an open tray to collect the filtrate. This solution is not suitable for sludge that is difficult to filter.
In the closed collector discharge, all filtrate is conveyed into a single closed collector discharge. In combination with the drain valve, this system increases the filtration efficiency.
An automatic device used to clean the feeding piping and the feeding channel formed when the filter plates are placed together in the filterpress.
It has the function of conveying the liquid that leaks during the filtration phase into a drip channel, avoiding wetting the previously discharged pressed sludge.
Washing of the cake is used to remove any contaminants in the sludge: the washing liquid penetrates the cake inside the filter.
When you have problems detaching the cake, or want to recover a few more % dry solids, cake blowing allows you to blow the cake formed inside the filter with a high-pressure blow of air.
The plate shaking device helps the cake to fall once filtration is finished and the filterpress is opened.
In case of long plate packs, the plates are also fed from the moving head to achieve uniform filling, so as to increase the compactness of the rehydrated cake and avoid pressure imbalances in the plates. Recommended above 50 installed plates.
When there are a large number of plates to be opened simultaneously, and it is not possible to open them all at the same time, the plates are divided into subsections (packs) and opened sequentially from the moving head.
Automatic washing portal to be installed above the filter press to carry out high pressure water washing of the filter cloths.
When we are filtering fluids that tend to be acidic and could give rise to vapours or fumes, it is advisable to construct a suction hood so that these vapours are extracted and evacuated to ensure the safety of the operator.
It is possible to prepare the machine to increase the number of plates installed at a future moment by making a larger frame and installing a suitable spacer (to be removed when the plates are installed).
When the fluid being processed contains substances that cause deposits on the cloths, the plates can be washed with a dilute acid solution to clean the filter cloths.
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