Process and apparatus for making mineral fibres

Details Process and apparatus for making mineral fibres Process and apparatus for making mineral fibres

C - Chemistry, Metallurgy

03

B

C03B 5/12 (2006.01) C03B 3/02 (2006.01)

Patent

CA 2449421

Particulate mineral material suitable for forming a fiberisable melt is melted in a flame formed by combustion of powdered carbonaceous fuel with preheated air and the particulate mineral material is then preheated, and the exhaust gases are subjected to NOx reduction, in a cyclone preheater (22).

L'invention porte sur un matériau minéral particulaire approprié pour former un bain de fibrage, ce matériau étant fondu sous l'effet d'une flamme obtenue par combustion d'un combustible carboné en poudre avec de l'air préchauffé. Le matériau minéral particulaire est ensuite préchauffé et les gaz d'échappement sont soumis à la réduction de NOx dans un réchauffeur cyclone (22).

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