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Foam breaker for gas/liquid reactors
| Details |
Inventors: Schreiber, Anselm;
Assignee: Bergwerksverband GmbH (Essen, DE)
Primary Examiner: Chiesa; Richard L.
Assistant Examiner:
Attorney, Agent or Firm: Striker; Michael J.
A foam breaker for a fermentation reactor has one or more curved rods, preferably hollow rods with open ends (tubes), and an arrangement for so mounting these on the rotor of the reactor that they rotate with the rotor. The rods or the tubes have leading ends or inlets respectively which scoop up liquid of the liquid phase contained in the reactor, and opposite closed ends or outlets respectively at or through which this liquid is slung away or expelled in form of jets which pass through and destroy a layer of foam that forms above the liquid phase in the reactor. |
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DETAILED DESCRIPTION What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims: 1.
A mechanical foam breaker for destroying a foam layer formed atop a liquid phase in gas/liquid reactors having a rotor, comprising at least one curved tube having an inlet and an outlet; and means for mounting said tube on the rotor at an oblique angle to the axis of rotation so that a portion of the liquid phase in the reactor is scooped up by said inlet and forced through the tube during rotation of the rotor, to emerge from the outlet as a liquid jet which penetrates the foam layer.
2.
A foam breaker as defined in claim 1; further comprising at least one additional curved tube similar to the first-mentioned tube, said means mounting said tubes radially symmetrical relative to the rotor.
3.
A foam breaker as defined in claim 2, said tubes being so mounted that when the rotor is rotating said inlets are immersed in the liquid phase to an extent depending upon the angle included between the tubes and the axis of rotation of the rotor.
4.
A foam breaker as defined in claim 2, said tubes being curved in the direction of rotation of the rotor.
5.
A foam breaker as defined in claim 2, said means comprising a bar mountable on the rotor so as to extend transverse to the axis of rotation thereof, a pair of tube-holding brackets, and mounting screws for mounting each of said holding brackets at an end portion of the bar so as to hold a respective one of said tubes.
6.
A foam breaker as defined in claim 5, said means further including stabilizing screws for said holding brackets.
7.
A foam breaker as defined in claim 2, said tubes having inner diameters which are selectable at will.
8.
A foam breaker as defined in claim 2, said tubes having at said inlets an inner diameter which is different from the inner diameter at said outlets.
9.
A foam breaker as defined in claim 1; further comprising additional tubes similar to the first-mentioned tube, different ones of said tubes being mounted on said rotor at different axial spacing relative thereto
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