Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Material level or thickness responsive
Utility Patent
1999-05-17
2001-01-02
Drodge, Joseph W. (Department: 1723)
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Material level or thickness responsive
C210S104000, C210S248000, C210S257100, C210S485000, C210S521000
Utility Patent
active
06168710
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention deals with an improved installation for cleaning/recovering liquids with particles in suspension.
It is a known fact that in many branches of industry or agriculture, there is a time when a liquid cannot be directly used as it has particles in suspension, making it necessary to filter it. Examples of this are: the dielectric of an electro-erosion machine, the coolant of a tooling machine, fermented wine, etc.
The problem arises when the filter becomes blocked due to use and the accumulation of particles.
The existing solutions consist in either scrapping the filter or in cleaning it, rejecting the material used in the operation, together with the waste impurities.
SUMMARY OF THE INVENTION
The object of the invention is an installation to recover liquid used in filter cleaning operations, only rejecting the impurities.
The installation targeted by the invention is characterised because it has:
a) a first tank, which the contaminated liquid reaches, with particles in suspension from cleaning the filtering equipment. It includes a guillotine-like mobile separation element, which subdivides it into two independent compartments. Contaminated liquid reaches one of them and the particles in suspension settle in the other compartment, forming sludge, which is evacuated to
b) a second tank, which includes a grid-tank supplied with a renewable filter bag where the particles in suspension from this sludge are retained, recovering dirty liquid, which is evacuated to
c) a third storage tank, from where this dirty liquid is recycled to the filtering equipment.
It is also characterised because the aforementioned first tank includes a base area, which is lower in level than the rest of the base, offering continuity by means of an inclined area. The sludge settles in these lowered and inclined base areas, providing an outlet duct towards this second tank, to evacuate these liquids and sludge.
It is also characterised because there is an overflow-duct in the aforementioned first tank, which reaches this third tank, permitting the dirty liquid to flow in one direction when, after the sludge has settled, a certain maximum level is reached or exceeded in the aforementioned first tank. This level is detected by one or several sensors.
REFERENCES:
patent: 5013432 (1991-05-01), Martinez-Mugica
patent: 5118411 (1992-06-01), Martinez-Mugica
patent: 5158672 (1992-10-01), Lagreca
patent: 5772871 (1998-06-01), Lyon et al.
Bierman, Muserlian and Lucas
Drodge Joseph W.
Ona Electro-Erosion, S.A.
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