Operating Instructions Bohle Water Treatment System Sedimentor 15
10. Cleaning cycles and process data
Procedure of an automatic cleaning cycle
After starting the automatic programme (see 14. Programme sequence), the waste water is fed from the waste water tank of
the processing machine into the Sedimentor by means of a dirty water pump.
An optimal tank design with special features causes coarse glass particles to be continuously separated from the coolant during
circulation (effective sedimentation).
The duration of the waste water inflow depends, among other things, on the amount of sludge per time unit and is controlled via the
runtime of the waste water pump (enter runtime of waste water pump).
The waste water pump stops after the programmed time.
The grinding sludge inside the Sedimentor container is released with a blast of compressed air and kept in motion by a propeller.
The quantity of sedimentation granulate set in the programme (enter dosing quantity in units) is automatically fed to the Sedimentor
and mixed with the Sedimentor contents.
The sedimentor content is circulated via the mixer. The sedimentation granules now bind coarse and fine particles.
The mixing process stops so that bound glass particles can settle to the bottom.
The release valve opens (Enter opening time of drain valve). Glass particles which have sedimented to the bottom are now discharged
into the filter bag aided by water pressure.
The tank is then circulated again and after a further settling time the waste water pump is switched on again. A cycle is now completed.
The frequency of a cycle depends on the set number of cycles (enter number of cycles).
At the same time the water slowly seeps through the filter bag and is collected in a filtration container. This container is equipped with a
controlled filtration pump which returns the filtered water to the sedimentor tank time-controlled by a float switch.
The correct functioning of the Sedimentor can only be guaranteed when using Sediflock 310 sedimentation granules
(BO 50028310) tested by BOHLE.
Every time before termination of work a complete flocculation cycle has to be carried out. In this way glass particles
and sludge are prevented from sedimenting at the container outlet.
Make sure when discharging the sludge that the discharge is only stopped when clear water flows out of the container.
The sludge can be discharged several times manually (press keys F3 and F1 simultaneously) for this purpose.
If the machine is not operated for several days, sludge should be discharged manually at least once a week.