Sieve drum

Details Sieve drum Sieve drum

1986-02-13

1987-07-07

Schwartz, Larry I.

Drying and gas or vapor contact with solids

Apparatus

Rotary drums or receptacles

34110, 34115, F26B 2520

Patent

active

046777610

ABSTRACT:
A sieve drum is disclosed that is particularly useful in textile processing equipment, such as a suction drum dryer, for heat-treating of continuous web material. The sieve drum is constructed having a single layer of a close mesh screen cylindrically formed between a pair of end heads to provide support for and transmit torque to web material being processed. The close mesh screen is composed of a plurality of longitudinal and transverse wire lengths of relatively heavy gauge than are sinusoidally woven into a lattice having a multitude of small interstitial openings each with rounded edges to provide smooth, unabrasive support to the web material. The multitude of small openings the aggregate area of which comprises less than 50% of the screen surface provides an even distribution of heated air over the surface of the drum and exposes a high percentage of the supported web to the air for a fast, energy efficient heat-treating process.

REFERENCES:
patent: 3605280 (1971-09-01), Fleissner
patent: 3893246 (1975-07-01), Fleissner
patent: 4251927 (1981-02-01), Luthi
patent: 4251928 (1981-02-01), Rotar et al.

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