Heat shield for refractory tube in molten glass feeder

Details Heat shield for refractory tube in molten glass feeder Heat shield for refractory tube in molten glass feeder

1988-02-03

1988-12-27

Kellogg, Arthur

Glass manufacturing

Molten glass dispensing means

Discharge orifice below melt level

65330, 65331, 65332, C03B 708

Patent

active

047938498

ABSTRACT:
A molten glass feeder includes a feeder bowl and a rotating refractory tube. Molten glass is discharged through openings in an orifice plate which are controlled by vertically displaceable needles. To reduce heat loss through the refractory tube, a heat shield is provided which is made up of two mirror imaged parts. Each part has a semicylindrical pan having a lip at the bottom for supporting a semi-circular support plate. Located on this plate is an insulation retainer which has a semi-circular base and a vertical wall at its diameter. This wall forms an insulation receiving bin with the pan.

REFERENCES:
patent: 4328023 (1982-05-01), Vilk
patent: 4581055 (1986-04-01), Bratton

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