Title:
DIRECT COMBUSTION TYPE CYLINDER DRYING APPARATUS AND METHOD AND PAPERMAKING APPARATUS
Document Type and Number:
Japanese Patent JPS6257999
Kind Code:
A
Abstract:
A drying cylinder (A) is mounted for rotation about its central axis (44). A burner assembly (B) oxidizes fuel interior to the shell, generally along the central axis. A recirculating fan (C) urges the hot combustion gases from the burner into a nozzle box assembly (D). The nozzle box assembly includes a plurality of peripherally spaced, longitudinally extending boxes (80) which have an array of nozzles (82) therein. The nozzles direct jets of hot combustion gases against an interior surface of a cylindrical dryer shell (30) for transferring heat thereto. Hot combustion gases which have impinged upon the shell are recirculated through passages (84) and are in part reheated by the burner and in part discharged through an exhaust aperture (90) and an exhaust duct (92). In one embodiment, the direct fired dryer is mounted in one of the dryer sections of a Fourdrinier paper production line. In another embodiment, particulates and other non-sheet materials are applied to the dryer shell, dried as the dryer shell rotates, and the dried materials are removed.
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Inventors:
KURAUSU EICHI HEMUSASU
BEIN AI FUU
BEIN AI FUU
Application Number:
JP19987486A
Publication Date:
March 13, 1987
Filing Date:
August 26, 1986
Export Citation:
Assignee:
MIDLAND ROSS CORP
International Classes:
D21F1/00; D21F5/02; F26B13/18; (IPC1-7): D21F5/02
Domestic Patent References:
| JPS295185Y1 | ||||
| JPS2913303Y1 | ||||
| JPS4527284Y1 | 1970-10-22 | |||
| JPS5186865A | 1976-07-29 | |||
| JPS5186888A | 1976-07-29 | |||
| JP60113488B |
Attorney, Agent or Firm:
Minoru Nakamura