Drying and gas or vapor contact with solids – Apparatus – Rotary drums or receptacles
Patent
1988-07-06
1990-01-16
Bennet, Henry A.
Drying and gas or vapor contact with solids
Apparatus
Rotary drums or receptacles
34155, 34160, F26B 1300
Patent
active
048934160
ABSTRACT:
The invention relates to an apparatus for the contactless guidance of webs of material 1. The apparatus has at least two blow nozzles 2, 3, designed as slits or rows of holes, arranged one behind the other in running direction of the web of material 1 and extending transversely to it. The blow jets of these blow nozzles 2, 3 are directed in the same direction and obliquely against the web of meterial 1. On the side towards the web of material 1, flow baffles 12, 12a, 12b, 13 are provided, of which the flow baffle 12 adjoining the rear blow nozzle 2 in running direction of the web of material 1 is curved convexly toward the web of material 1. The flow baffle 12a, 12b between the convexly curved flow baffle 12 and the front blow nozzle 3 is designed as a shock diffuser. With such an apparatus, a web of material 1 is guided free from fluttering even under difficult circumstances. This effect is further improved if the flow baffle 13 adjoining the front nozzle lip 8 of the front blow nozzle 3 is curved convexly toward the web of material 1.
REFERENCES:
patent: 3231165 (1966-01-01), Wallin et al.
patent: 3587177 (1971-06-01), Overly
patent: 4074841 (1978-02-01), Kramer et al.
Bennet Henry A.
Dunn Michael L.
Sollecto John M.
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