Stainless Steel Drain Grate Grille Grating For Water Leakage
Project
Custom Stainless Steel Drain Grate Grille Grating For Water
Leakage Classification
- According to the shape, the grid can be divided into two types: a
flat surface and a curved grid. The planar grid consists of a grid
and a frame. The curved grid can be divided into fixed curved
grille and rotating drum grille. According to the net spacing of
the grid bars, it can be divided into three types: coarse grid
(50~100mm), middle grid (10~40mm) and fine grid (1.5~10mm). Both
the flat grille and the curved grille can be made into three types:
thick, medium and thin. Since the grid is an important facility for
physical treatment, the newly designed sewage treatment plant
generally adopts two coarse and medium grids, and even three coarse
grids, medium and fine grids. According to the method of clearing
slag, the grid can be divided into two types: artificial slag and
mechanical slag grid. The artificial slag grid is suitable for
small sewage treatment plants. When the amount of slag is more than
0.2m3/d, in order to improve the labor and sanitary conditions of
workers, a mechanical slag grille should be used
Custom Stainless Steel Drain Grate Grille Grating For Water Leakage
Requirements
- A grid must be provided before the sewage treatment system or pump.
The amount of suspended matter and floating matter (collectively
referred to as grid slag) that can be trapped by the grid varies
greatly depending on the width of the gap between the selected
grids and the nature of the sewage. The width of the gap between
the grid bars should meet the following requirements: 16~25mm for
mechanical cleaning before the sewage treatment system, 25~40mm for
manual removal; before pump, it should be determined according to
the requirements of the pump. If the gap width between the water
grid grille bars is not more than 20mm, the grille may not be
installed before the sewage treatment system. The number of grating
grid slag is related to the gap width between the grid bars: when
the gap width between the grid bars is 16~25mm, the grid slag
amount is 0.10~0.05m3/103m3 sewage; when the gap width between the
grid bars is 25~40mm At the time, the amount of grid slag is
0.03~0.01m3/103m3 of sewage. A workbench should be set up behind
the grille. The workbench should generally be 0.5m above the
highest water level upstream of the grille. For the artificial slag
grille, the length of the workbench along the water flow direction
is not less than 1.2m, the length of the mechanical slag grille is
not less than 1.5m, and the width of the aisles on both sides is
not less than 0.7m.
Custom Stainless Steel Drain Grate Grille Grating For Water Leakage
- The grille is the main auxiliary equipment in the sewage pumping
station. The grid is generally composed of a set of parallel grids
that are placed obliquely at the inlet of the pumping station sump.
The angle of inclination is 60°~80°. A workbench should be set up
behind the grille. The workbench should generally be 0.5m above the
highest water level upstream of the grille. For the artificial slag
grid, the length of the workbench along the water flow direction is
not less than 1.2m, the length of the mechanical slag grid is not
less than 1.5m, and the width of the aisles on both sides is not
less than 0.7m.
- Contaminants in sewage generally exist in three forms: suspended
(including floating), colloidal, and dissolved. The physical
treatment of sewage mainly consists of suspended solids and partial
colloids that may block the pump impeller and pipeline valves and
increase the load of the subsequent treatment unit. Therefore, the
physical treatment of sewage is generally referred to as
solid-liquid separation treatment of wastewater. In principle,
wastewater solid-liquid separation is mainly divided into two
categories: one is that wastewater is limited, and the suspended
solids are removed in water; the other is that suspended solids are
subject to certain restrictions, and the wastewater flows to
suspend solids. abandon. The grille belongs to the latter. The
grille is the main auxiliary equipment in the sewage pumping
station. The grid is generally composed of a set of parallel grids
that are placed obliquely at the inlet of the pumping station sump.
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