Infra red dryer
OwnerChristopher Parle, David Klemzinventors
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Abstract
An IR dryer, for use in drying a continuous paper web by means of IR radiation, comprising an array of IR emitters arranged in use, in spaced relation to the paper web and a lamp protection plate intermediate the IR emitters and the paper web. At least one of the lamp protection plate and the array of IR emitters is curved whereby drying a paper web which moves in a curved path is facilitated.
Claims31
An IR dryer, for use in drying a continuous paper web by means of IR radiation, comprising
- an array of IR emitters arranged, in use, in spaced relation to the paper web;
- a lamp protection plate intermediate the IR emitters and the paper web;
- characterized in that at least one of the lamp protection plate and the array of IR emitters is curved whereby drying a paper web which moves in a curved path is facilitated.
An IR dryer, for use in drying a continuous paper web by means of IR radiation, comprising
- an array of IR emitters arranged, in use, in spaced relation to the paper web;
- a lamp protection plate intermediate the IR emitters and the paper web;
- characterized in that the lamp protection plate comprises a plurality of quartz tubes arranged in an array.
A method of bending an elongate quartz tube comprising the steps of;
- supporting the tube in a substantially vertical orientation;
- gripping the tube near its uppermost end;
- heating the tube at region intermediate its lowermost end and the uppermost end;
- and
- moving the gripped uppermost end of the tube so that the tube, softened in the vicinity of the heating region, is bent.
Apparatus for bending an elongate quartz tube comprising
- support means for supporting the tube in a substantially vertical orientation;
- gripping means for gripping the tube near its uppermost end;
- heating means situated at a region intermediate the lowermost end and the uppermost end of the tube;
- and
- driving means for moving the gripped uppermost end of the tube, in use, so that the tube, softened in the vicinity of the heating means, is bent.
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An IR dryer for use in the papermaking industry comprising:
- an array of curved lamps, each of which lamps includes an IR heating element located within a curved quartz tube.
An IR dryer for use in the papermaking industry comprising:
- a curved lamp protection plate which includes an array of curved quartz tubes.
Dependencies are inferred from the claim text.