Drying and gas or vapor contact with solids – Apparatus – Rotary drums or receptacles
Patent
1991-03-12
1992-05-26
Bennet, Henry A.
Drying and gas or vapor contact with solids
Apparatus
Rotary drums or receptacles
34117, F26B 1330
Patent
active
051155818
ABSTRACT:
A beam construction used in the area of single-draw of the drying wire (13) in a paper machine or the equivalent thereof is placed in proximity of the straight joint run of the drying wire (13) and the web (W) between the drying cylinder (10) and the leading cylinder (12) or roll on a sector (a) of the leading cylinder (12) or roll that is otherwise free from the drying wire (13). The beam construction comprises a static closing-suction beam (20) with no blowing members. The closing-suction beam (20) covers the drying wire (13) which runs form the drying cylinder (10) onto the subsequent leading cylinder (12) or roll, the web (W) being placed on the opposite face of said wire (13). At the inlet edges of the closing-suction beam (20) transverse seals (27,28) are placed against the drying wire (13) and the leading cylinder (12) as well as lateral seals (25, 25a) at the ends of the closing-suction beam (20). These prevent the access of air into the spaces (14,15) between the closing-suction beam (20) and the drying wire (13) and the leading cylinder (12). Negative pressure is produced in the latter spaces (14,15) and in the inlet nip (N+) between the leading cylinder (12) and the drying wire (13) by the intermediate of perforations (12c) in the mantle (12b) of the leading cylinder (12) out of the negative pressure prevailing inside the mantle (12b) of the leading cylinder (12).
REFERENCES:
patent: 4516330 (1985-05-01), Eskelinen et al.
patent: 4628618 (1986-12-01), Virta et al.
Bennet Henry A.
Valmet Paper Machinery Inc.
LandOfFree
Suction beam does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Suction beam, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Suction beam will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-411293