C - Chemistry – Metallurgy – 03 – B
Patent
C - Chemistry, Metallurgy
03
B
49/8.1
C03B 37/06 (2006.01)
Patent
CA 1281188
ABSTRACT Apparatus for producing mineral fibres from silicate raw materials such as basalt by blast drawing. When blast drawing is used to produce mineral fibres from basalt, there is arranged between the entry zone (26) of the chute (16) and the exit zone of the nozzle slot (10) of the blast nozzle unit (8), this slot forming the fiberisation duct, a guide cell (13). The relative position of the side walls (29) of the guide cell is freely adjustable, so that desired flow conditions can be set and also the exit direction of the exit flow bundle (31) and hence the web formation can be controlled. As a consequence of a lateral distance (a) of the entry orifice (28) of the guide cell (13) relative to the entry flow bundle (27) additional secondary air is sucked in, which has a further cooling effect on the fibres. At the exit orifice (30) from the guide cell (13) the flow is restructured and emerges as a cooled exit flow bundle (31) and is at that point initially subjected to a further cooling with cooling water applied by spray nozzles (14) and by further secondary air sucked into this zone before the application of binder from spray nozzles (15). The spray axis (15a) of the spray nozzles (15) forms an acute angle with the axis (11a) of the exit flow bundle (31) in order to ensure homogeneous incorporation of binder into the flow bundle (31).
504108
Fachat Gaston
Sistermann Klaus
Ungerer Heinz-Jurgen
Grunzweig & Hartmann Aktiengesellschaft
Sim & Mcburney
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