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AssigneeCiba Specialty Chemicals Corporation
InventorsMohamad Mallah, Horst Linn, Niklaus Saner, Peter Voirol
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The present invention relates to an oven for heating an essentially liquid medium, especially a reactive casting material, flowing through the oven. The oven has an inlet into a channel for the medium to be heated, in which channel there is arranged a separate pipe through which the medium to be heated flows and in which it is heated by electromagnetic radiation. Several heating units are arranged along the channel, each of which comprises an electromagnetic radiator containing a waveguide. The waveguides guide the radiation to the channel through which the medium flows and which couples the radiation into that channel. The heating units are substantially decoupled from one another by means of a decoupling diaphragm that is provided in the channel and is arranged between two adjacent heating units or radiators essentially at right angles to the direction of flow. The pipe through which the medium flows passes through a passage in the decoupling diaphragm, thus also constituting a support for the pipe.
An oven for heating an essentially liquid medium flowing through the oven, having an inlet into a channel located in said oven for the medium to be heated, in which channel there is arranged a separate pipe through which the medium to be heated flows and in which it is heated by means of electromagnetic radiation, wherein along the channel several heating units are arranged, each heating unit comprises an electromagnetic radiator containing a waveguide which guides the radiation to the channel through which the medium flows and which couples the radiation into that channel, wherein the heating units are substantially decoupled from one another by means of a decoupling diaphragm which is provided in the channel and which is arranged between two adjacent heating units or radiators essentially at right angles to the direction of flow, the pipe through which the medium flows passes through a passage in the decoupling diaphragm, the diaphragm thus also constituting a support for said pipe.
A plant for the manufacture of solid castings from an essentially liquid reactive medium as casting material which, on reaching its gelation temperature, reacts to form a solid material, with a supply tank for providing the medium, in which the temperature of the casting material lies substantially below the gelation temperature of the casting material, and with a feeding means for feeding the casting material into a casting mold which has been heated to a temperature that lies above the gelation temperature of the casting material, wherein an oven according to claim 20 is connected directly upstream of the casting mold.
An oven for heating a reactive casting material flowing through the oven, having an inlet into a channel located in said oven for the medium to be heated, in which channel there is arranged a separate pipe through which the medium to be heated flows and in which it is heated by means of electromagnetic radiation, wherein along the channel several heating units are arranged, each heating unit comprises an electromagnetic radiator containing a waveguide which guides the radiation to the channel through which the medium flows and which couples the radiation into that channel, wherein the heating units are substantially decoupled from one another by means of a decoupling diaphragm which is provided in the channel and which is arranged between two adjacent heating units or radiators essentially at right angles to the direction of flow, the pipe through which the medium flows passes through a passage in the decoupling diaphragm, the diaphragm thus also constituting a support for said pipe.
Dependencies are inferred from the claim text.