43
M12/M15/M18
7. Functional Units 7.
7.14 Extraction Tank 7.14
The condensate recovered from the drying is fed to the extraction tank.
In the same way, the condensate runs from the 1
st
fraction of the distillation into the extraction tank.
The condensate from the 1
st
fraction distillation mainly contains water and low-boiling solvent.
In the extraction tank, the water and other low-boiling solvents are separated from the cleaning
solvent.
The heavy water collects at the bottom. In the lower area, there is a water-sensitive level sensor,
which controls the draining of the process water.
Higher up, the solvent is routinely suctioned off and then used for the precleaning bath or
suctioned off to the distillation. There is always a residual amount of solvent and water that
remains in the extraction tank. This is why you must carry out maintenance on the tank routinely.
There is a fixed program available for this.
707766-09-0
1 For draining water/emptying tank 5 Connection, rinsing with pump
2 Water sensitive level sensor 6 Vacuum pump inlet
3 Distillation inlet 7 Ventilation and aeration atmospheres
4 Solvent suctioning 8 Drying inlet
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