Plate Filterpresses for Process and Chemical Industry

SPECIFIC SOLUTIONS FOR INDUSTRY Autemi is able to supply specific solutions for Process and Chemical Industry. Our Filterpresses portfolio is specific designed for heavy duty applications typical of industry environmental. Optional and configurations available allow our machine to be the ideal solution for all that processes where a standard filterpress can’t reach the required results. Autemi offer the possibility of customization about materials, special covering of the frame, piping layout, valves optional, and many other solutions. We do not tell you that in each project we use the most innovative...

FILTRATE DISCHARGE We can choose between opening discharge in lateral tray or in common canal. One of the characteristics that distinguish a high-performance filter press - with the same options is certainly the filter discharge system. The discharge of the filtrate is the way in which the filtered liquid is conveyed and collected. The first system - even the most economical one - consists of a lateral lower drain, also called an "open drain". With this type of discharge, the filtrate comes out from the lower part of the plate (on both sides or on one side, depending on the model dimension) and...

A valve is placed in lower pipe. The opening of this valve (controlled by a PLC) occurs when the filtration (filling) pressure reaches 3/4 bar (before 3/4 bar, the filtrate comes out only from the 2 upper holes, in order to completely fill the plate chambers). In addition to this, a better distribution of the pressures inside the plates is obtained. DRIP TRAY Its function is to convey the liquid that normally and physiologically draws during the filtration phase between one plate and the adjacent one (unless the "gasket" plates are used - but this is another matter). This liquid is collected...

So basically with the filter press I try, with all possible strategies, to obtain the greatest degree of dryness and the greatest dehydration and then, since I have not mounted the Drip Tray, I am going to nullify the action obtained in the previous filtration. CORE BLOW AND CHANNEL BLOWING CORE BLOW LINE ELECTRIC PANEL PNEUMATIC PANEL The core-blow is an automatic device used for cleaning the feeding pipe and the feeding channel which is formed by pairing the filter plates. The process involves sending compressed air, usually between 6 and 8 bar, inside the filter press feeding channel, capable...

In automatic cycle machines, this device is essential to ensure correct operation: in case of simultaneous or automatic machines, the filtering and cake discharge step is not always attended by an operator. If the sludge present in the feeding channel of the filtering plates should settle and "dry out", during the following filtration cycle there would be pressure imbalances that could cause the plates breaking. This is particularly true for high specific weight sludge such as lead pastel or for very dense sludge such as molasses, sugar, concrete, etc ... The filtration pressure increasing will...

CAKE BLOWING AND CAKE WASHING Device mainly used when there are problems with cake detaching from the filtering cloths during the unloading step of the machine. In addition to this important function, it also allows the achievement of a few more percentage points of dry solid in the cake. Cake blowing (or cake drying) is an optional which involves the insertion of compressed air (at 6/8 bar) inside the panels, after the filtration phase. This optional is developed on the machine's discharge pipes. Basically a series of automatic valves are installed: compressed air inlet valve and an automatic...

Drying can be carried out mainly in two ways: inserting the compressed air in the upper exhaust manifolds and then letting it out from the low ones, or inserting the air in the right (or left) discharge holes and letting it come out from the left (or right) manifolds. We speak of "top-down" drying in the first case or "right-to-left" drying in the second case. If you decide to install this device, the filter plates are characterized by the presence of crossed drainage holes. This means that compressed air entering, for example, from the high collectors of the filter press, is forced to exit from...

PRESSURE GAUGE BALL VALVE SAFETY SLIDING DRIP COLLECTING SLUDGE CLOGGING

OPENING SYSTEM Our Filterpresses are equipped with several plate opening system, depending on the sludge or liquid to be treated. Basically we can supply Automatic opening system "One by one", with moving carriage and plate shifting or Automatic and "Simultaneous" with synchronized opening system in order to open all the plates simultaneously. Autemi srl can supply also Plate Filterpresses with automatic and simultaneous opening system with multiple unit, in case of a lot of filtering plate installed. SAFETY LIGHT AUTOMATIC CARRIAGE FOR ONE BY ONE OPENING PLATES SYSTEM SHAKING DEVICE OF PLATES...

AUTOMATIC WASHING SYSTEM The automatic washing unit is a portal structure that must be installed above the filter press frame. A carriage equipped with a washing bar slides on this structure (with a number of nozzles able to guarantee coverage of the entire surface of the filtering cloth). Washing is performed at high pressure. The carriage slides horizontally along the entire length of the machine and can be raised and lowered in order to clean the cloths in all its vertical development. Standard high pressure washing is performed at 80-100 bar (the accumulation of material between the cloths...

The group is completed by a special pumping skid (optional) consisting of: - High pressure piston pump - Tank for industrial water - Connection between acid skid and filterpress is not supplied ACID CLOTH WASHING When the sludge to be filtered is very sticky and encrusts the filtering cloths very quickly (causing problems related to filtering pressure, filtering times, etc ...), acid washing of the cloths is the device you were looking for. How does acid washing of filtering cloths work? Normally hydrochloric acid diluted from 3 to 5% is used.