Process and apparatus for making mineral fibres

The present invention provides a process for making a mineral melt comprising: providing a circulating combustion chamber which contains circulating chamber gases, injecting a stream of particulate fuel into the combustion chamber through a fuel feed pipe, injecting combustion gas into the combustio...

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Main Authors HANSEN LARS KRESTEN, JENSEN LEIF MOLLER, HANSEN PETER BINDERUP, BOLLUND LARS, HANSEN LARS ELMEKILDE
Format Patent
LanguageChinese
English
Published 14.10.2009
Subjects
AIR
BLASTING
CHEMISTRY
COMBUSTION APPARATUS
COMBUSTION PROCESSES
GLASS
HEATING
LIGHTING
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
MECHANICAL ENGINEERING
METALLURGY
METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN
MINERAL OR SLAG WOOL
WEAPONS
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Summary:The present invention provides a process for making a mineral melt comprising: providing a circulating combustion chamber which contains circulating chamber gases, injecting a stream of particulate fuel into the combustion chamber through a fuel feed pipe, injecting combustion gas into the combustion chamber; mixing the stream of particulate fuel with the combustion gas and with the circulating chamber gases by injecting into the combustion chamber secondary gas, through a secondary gas inlet, wherein the secondary gas is injected adjacent to the stream of particulate fuel and the injection speed of the secondary gas is at least 100 m/s greater than the injection speed of the particulate fuel; suspending particulate mineral material in the circulating chamber gases and combusting the fuel, thereby melting the particulate mineral material and forming a mineral melt and hot exhaust gases; and separating the hot exhaust gases from the melt and collecting the melt.
Bibliography:Application Number: CN200780034786