Rockwool International A/s

Lars Bøllund

Lars Elmekilde Hansen

Jeroen Petrus Wilhelmus Sap

Haosheng Zhou

Per Steenbjerg

An apparatus for the production of a mineral melt burns combustible material in the presence of inorganic material to form a melt. The apparatus includes a circulating combustion chamber which receives a fuel, pre-heated mineral material and a combustion gas so as to melt the mineral material and generate exhaust gases which are separated from the melt. The gases pass through an exhaust pipe to a conduit of a heat exchange system. The apparatus includes a quenching hood for quenching the exhaust gases by drafting a cooling fluid, such as ambient air, into the flow of exhaust gases around the exhaust pipe, and wherein the exhaust gases exit the exhaust pipe inside the hood.

Method and an apparatus for making a mineral melt

The present invention concerns a method and an apparatus () for measuring the temperature of a fluid stream (), said apparatus comprising a movable frame () having first end facing towards the fluid stream to be measured and an oppositely directed second end; a beam splitter () which is movably arranged in the frame for advancement into said fluid stream to open the fluid stream; an optical temperature measurement device () for determining the temperature of the fluid stream by measuring the thermal radiation from the fluid stream; and control means for controlling the movement of the frame and the beam splitter and controlling the performance of the optical temperature measurement device.

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Slangerup, Denmark

Lars Bøllund