Pages according to the type of need and application in different dimensions:
20 * 20, 30* 30, 40 * 40, 60 * 60, 80 * 80, 100 * 100, 120 * ,120 and 150 *150
In different models, rectangular, round, entrance from the center, entrance from the side, frame, plate, membranes, etc., and in different materials: steel, polypropylene, cast iron, aluminum, rubber, etc. are offered. Each has its own characteristics and capabilities and depending on the type of solution or sludge to be treated, working temperature, weight and volume of suspended solids, required dewatering volume, ambient pH (acidity or alkalinity) And the required working pressure can be graded that the plates can withstand temperatures up to 117 degrees Celsius and at temperatures above 137 degrees Celsius is required to use plates of cast iron, aluminum and stainless steel.
The cake is formed in the space created between these plates and about 60 to 80% of the dewatering is done, which depends on the characteristics of the inlet slurry and the feeding pressure (the thickness of the cake is approximately 30-55 mm) and if It should be in the form of a frame and a plate from 12-5 cm.
These types of pages are made in different sizes and according to the standard and order of esteemed customers.
The working cycle in filter presses that are made with this type of plates is such that the filter press plates are completely pressed by the hydraulic jack that is connected to the movable plate. In this case, the slurry is pressed into the filter and the solid particles are separated from the liquid in the space between the plates and a cake is formed. The slurry is then cut off and the plates are separated and the cake is emptied; And the above steps are repeated again.
The plates used in filter presses are one of the most important and effective parts in the performance of the machine.
This unit designs filter press plates for various applications with a depth of 2 cm to more than 5 cm, according to standard dimensions. The grooves and design type are based on the conditions of use and the type of operation expected.
Among the advantages of filter press pages, the following can be mentioned:
High compatibility in refining different products-
Shorter filtration and purification time-
Higher device efficiency-
Higher percentage of dry matter (cake) (reduction of cake moisture)-
Reducing energy consumption-
No need for possible re-drying-
-Easier detachment of the cake due to the special design of the plates
Use of clear solution in sugar and food factories-
The type of design, the way of feeding and the use of rubber (Rubber) in the plates has caused the cases of thickness damage and sudden breakage during operation to be significantly reduced.
What is very important in the optimal performance of filter press machine systems, accurate selection of plate type and form, membrane plate raw materials, fabric type, operating conditions including the study of environmental stresses such as pressure, temperature, pH, inlet and outlet flow, percentage The basic solute of the solution is the moisture content of the output cake and… .
Introduction of Press Filter Pages:
In general, filter press plates are classified into ordinary or chamber plates (Reccessed), which is also called fixed volume, and variable volume plates or membranes (Membrane).
In recent years, the use of polymer sheets, especially p-p polypropylene, have replaced metal sheets in many applications due to their more reasonable price, high resistance in highly corrosive (acidic) environments, ease of use and optimal performance.
Page types:
Frame pages and pages
These types of plates, called frames and plates, are more durable than other plates and were designed and marketed earlier than other plates. These plates consist of a hollow frame and a grooved flat plate or have a dotted appearance with a height of 5 mm. When the material enters the filter, a cake is formed inside the frame. These plates are made of polypropylene, cast iron, aluminum or steel and the thickness of the cake in them reaches 120-50 mm. Today, these types of plates are mostly used in cases where the level of filtration is more important than its volume.
Membrane pages
These types of plates, called variable volume plates or membrane plates, are stacked one on top of the other on the filter press. The working cycle of filter presses that are made with this type of plates is the same as filter presses with fixed volume plates, with the difference that after filling the filter and entering the slurry into the filter press and forming a cake between the plates, air or water blowing operation in space The inside of the plates is done. After blowing air or water into the inner space of the membrane plates, they swell and when pressure is applied to the cake, the dewatering operation is performed again. As a result, the dewatering percentage of the resulting cake is significantly increased and the cake is obtained with dryness up to 90% (depending on the type of cake). Also, in this type of plates, due to the high percentage of dryness, the cake does not stick to the plates and is easily separated from the plates during emptying.
The plates provided by Sabalan Safi Industrial Manufacturing Company have a guarantee of burst resistance.