PARABOLIC SCREENS
Parabolic Screens are applied for separating Solids from process and Wastewater. The Parabolic Screens are robustly built and required the minimum maintenance and attention. The Raw water pumped over a curved, wedge wire Screen plate where separated particles slide down, due to gravity and the screened water leaves the screen via the outlet. The Screen can be equipped with a programmable spray cleaning device in case of wastewater contains fiber like material or Fat. The screen is built with stainless steel wedge wire mesh from 0.25 mm to 1.5 mm to remove any solids above this mesh size.
Description:
Static parabolic screens find their origin in the mining industry for the separation of dry particles. At present most applications are in solid-liquid separations of
granulates*, fibers, organic material etc. The separating principle is based on a peeling mechanism.
The wedge wire screen built from profiled metal wire stands at right angles to the direction of the liquid and the flat side of the wire under a 60° angle. This results in a separation of the liquid from the solids, letting the solids slide down by gravity. The separating efficiency is about half the slot width. On the front side a collector catches the solids. When the solids are heavy or sticky the separating mechanism
can be assisted by a vibrating motor, spray nozzles and or a brush mechanism. The complete screen construction is made of SS304.
Advantages:
Effective technique Minimum wear Can handle high dirt loads Minimum running costs
Minimum maintenance
costs
Continuous separation
Low investment
Application areas: Horticulture
Crate washers
Waste water
Specifications:
Material: SS304 with flange rings coated aluminum DIN2642
Temperature: max. 80°C
Slot size: 0,5mm standard, other sizes on request
Options:
Vibrating motor
Spray nozzles
Brush mechanism
Other slot sizes from 0,25 mm on to 2
mm
Cover in SS304
Dirt collector (bin with bag)
Parabolic Screen
| Parabolic screensA parabolic screen is nothing more than a screen with a parabolic curve in it. This curve has several advantages, the dirt easily slides down the screen, meanwhile the water passes through the screen. Because of this, the dirt easily can be removed from the screen, this also can been done by brushes. The dirt can be collected in a bin or a container
Depending on the size of the surface, the screen can handle a large amount of water. The holes of the screen are most of the time between 0,2mm and 2 mm. This technique is especially useful for treatment of wastewater. Examples of industries in which the screen is used:
There are also vibrating screens available for a better treatment. Because of the vibration the residue easily comes of the screen and it protects the holes from stuffing up |
