Silver white grid for corrosion-resistant sewage treatment
The flat filter screen is made of thickened material with
guaranteed quality and convenient use. The material is iron. The
specifications are customized according to the customer's
requirements. We also recommend some common specifications as
follows:
| 进水口 | 格栅 | 间隙 | 导轨规格 |
| 700*700 | 800*800 | 30 | [10 |
| 700*900 | 800*1000 |
| 700*1100 | 800*1200 |
| 900*700 | 1000*800 |
| 900*900 | 1000*1000 |
| 900*1100 | 1000*1200 |
| 900*1300 | 1000*1400 | 30 | [14a |
| 1100*700 | 1200*800 |
| 1100*900 | 1200*1000 |
| 1100*1100 | 1200*1200 |
| 1100*1300 | 1200*1400 |
| 1100*1500 | 1200*1600 |
| 1300*900 | 1400*1000 |
| 1300*1100 | 1400*1200 |
| 1300*1300 | 1400*1400 |
| 1300*1500 | 1400*1600 |
Purpose and overview of plane filter screen:
the grid is used to be inserted in the canal to intercept floating
inclusions with small diameter and reduce the treatment load of
subsequent processes. It is commonly used in urban water supply,
industrial water supply and other projects. It has the advantages
of good rigidity, multi-faceted straightness, superior pollution
interception effect and low cost.
In addition to self weight, it is mainly the water load caused by
the water level difference before and after the grid after the dirt
is blocked, which is generally considered as 2 ~ 4m water head. The
size of the trash rack depends on the flow through the rack and the
allowable flow rate through the rack. In order to reduce head loss
and facilitate sewage removal, the flow velocity through the grid
is generally required to be no more than about 1.0m/s. The trash
rack can be made into fixed or capable of lifting.
Installation instructions for plane grid
The length of the guide rail shall be determined according to the
engineering conditions. When splicing is required, butt
double-sided welds shall be adopted. The misalignment of welded
junction shall be less than 0.2 times the waist thickness of
channel steel. The welded junction must be ground flat. The guide
rail must be straightened before installation, and the straightness
tolerance value is 1 / 1000 of the guide rail length
The perpendicularity of the guide rail length is 1000 / 1,
The parallelism tolerance between the guide rail centerline and the
installation center plane is 4. The spacing l of embedded iron
shall not be greater than 800, and its size and quantity shall be
determined according to the engineering conditions.
