GRATES OF ASEKO SYSTEM
Supporting tubes (6)
with aerators (5)
are connected with each other into a grate with a common air supply system.
Supporting tubes with aerators are balanced against buoyant force in water
with the help of internal load. They are placed on two beams having adjustable
which abut on the bottom of the tank without further anchorage.
Air distribution system, at the air inlet into the grate, is provided either with a coupling with external pipe thread or by a T-joint with flange connection. Air is supplied to each grate through a choke valve (3) connecting part (2) and connecting pipe (4). The connecting pipe can be either flexible or fixed. The choke valve and the connecting part serve to shut off air supply and disconnect the pipe (4) when the lifting grate is removed from the tank. The choke valves further enables to shut off air supply to individual grates, when it is out of operation, while the rest part of aerating system continues in operation.
Lifting grates are intended for tanks accessible by a hoisting mechanism (crane) and for tanks where it is advantageous to introduce a common air supply to supporting pipes with aerators.
The lifting grates enable, if required, installation
into filled activation tanks. Removal and reassembling of individual supporting
tubes for the purposes of checking or repair can be performed under full
operation without stopping the work or interruption of pumping.