Mechanical Screen
Screening is an essential part of the sewage treatment process without it the waste would go unfiltered and cause
clogging and congestion.
Mechanical screen features
| TECHNIQUE |
MWCO* (Da) |
| Use |
detect big solid substances, maintain sewage infrastructure. |
| drum screen use |
removing sticky solids.
|
| Screw screen use |
removing big solid wastes
|
| Other variants |
auto abrasive bar mesh, versatile filter |
| Other wastes removed |
big stones, pulpy content, tiny particles, oil, sand, fiber. |
| Operating temperatures |
-15 to 50 C
|
| Authorized and certified |
yes
|
| Size |
1-6mm
|
| Handling waste flow |
1-500litres / second
|
Some types of mechanical screens are discussed below
THE INCLINED BLOCK RAKE SCREEN
| Uses |
eliminates rough solids |
| Maintenance |
low
|
THE AUTO BASKET SCREEN
| Configured in |
pump and lift posts |
| Uses |
prevents cluttering of pumps, screen filters.
|
| Top filter size |
8-15mm
|
| Width |
900mm
|
| Frame material |
stainless steel grade 316
|
| Motor powers |
0.37-1 KW
|
| Power phases used |
3
|
| Voltage |
380 V, 50HZ. The at which you will need to
|
| Screen angle configuring |
90 degrees.
|
The basket captures waste like rock solids to tissue papers, without getting stuck when compared to the wire rack
which is dependent on the rake
THE UPRIGHT BAR SCREEN
| Uses |
access difficult area |
| Positioning |
standing upright
|
| Height rack |
1500mm
|
| Accessible depth |
10 meters
|
| Top filter size |
10-25mm
|
| Width |
500-2000mm
|
| Motor power |
1-2KW
|
Rake assists in grabbing the waste and shifting it to the machine’s top, the shovel later takes off the waste to the
hopper that finally ends up in the dump container
THE STEP INCLINED SCREEN
| Suited for |
water bay constructions
|
| Screen configuring angle |
55 degrees
|
| Filtration |
3-6mm
|
| Noise |
less
|
| Frame material |
stainless steel
|
The waste is gathered via a chain and disposed.
