Apparatus for continuously treating fibrous materials under pressure

Claim 1

An apparatus for continuously heat-treating fibrous materials in a heat-treating chamber filled with a pressurized heating fluid, which comprises: A. a drum-type heat treating chamber having a feeding and discharge part; B. a blank flange fixed to the drum of said heat-treating chamber perpendicularly to the central axis of the drum at the feeding and discharge parts, respectively; four lips of L-shape in cross-section, one side of each one of two of said lips being overlaid on the surface of each one of said blank flanges, the other side thereof being inserted into one side of a rectangular opening for providing said two lips in each Blank flange, on one surface thereof, and spaced, in respect of the other surface, apart from the other side of the other opposed lip, by a predetermined clearance which allows the fibrous materials to pass therethrough, said other side of said lips having a tip with an inclined surface; C. at least two of a pair of sealing chambers provided adjacently to each one of said blank flanges; each one of said sealing chambers being formed by the following three members: i. the inside wall of an extension of the drum of said drumtype heat-treating chamber, ii. an upper or lower half part of each one of said blank flanges, and iii. each one plate of at least two pairs of sealing plates fixed to the drum and obliquely traversing the interior of the drum toward said inclined surface; the tip ends of each one of said pairs of sealing plates being spaced apart by a predetermined clearance; the surface of each end part of each one of said pairs of sealing plates facing said inclined surface being spaced apart by a predetermined clearance from said inclined surface; the angle between each one of said blank flanges and each one plate of said pairs of sealing plates being not more than 60*; and D. two chambers for overflowing a sealing fluid which is introduced into said sealing chambers through pipes for introducing the sealing fluid and then ejected through said predetermined clearances, while applying a static pressure to the atmosphere around the fibrous materials, between the sealing plates and said inclined surface, passing through said predetermined clearances between the sealing plates to thereby prevent leakage of the pressurized heating fluid from said heating chamber.

Claim 2

An apparatus for continuously heat-treating fibrous materials in a heat-treating chamber filled with a pressurized heating fluid, which comprises: A. a drum-type heat treating chamber having a feeding and discharge part; B. a blank flange fixed to the drum of said heat-treating chamber perpendicularly to the central axis of the drum at the feeding and discharge parts, respectively; four lips of L-shape in cross-section, one side of each one of two of said lips being overlaid on the surface of each one of said blank flanges, the other side thereof being inserted into one side of a rectangular opening for providing said two lips in each Blank flange, on one surface thereof, and spaced, in respect of the other surface, apart from the other side of the other opposed lip, by a predetermined clearance which allows the fibrous materials to pass therethrough, said other side of said lips having a tip with an inclined surface; C. at least two of a pair of sealing chambers provided adjacently to each one of said blank flanges; each one of said sealing chambers being formed by the following three members: i. the inside wall of an extension of the drum of said drumtype heat-treating chamber, ii. an upper or lower half part of each one of said blank flanges, and iii. each one plate of at least two pairs of sealing plates fixed to the drum and obliquely traversing the interior of the drum toward said inclined surface; the tip ends of each one of said pairs of sealing plates being spaced apart by a predetermined clearance; the surface of each end part of each one of said pairs of sealing plates facing said inclined surface being spaced apart by a predetermined clearance from said inclined surface; the angle between each one of said blank flanges and each one plate of said pairs of sealing plates being not more than 60*; and D. two chambers for overflowing a sealing fluid which is introduced into said sealing chambers through pipes for introducing the sealing fluid and then ejected through said predetermined clearances, while applying a static pressure to the atmosphere around the fibrous materials, between the sealing plates and said inclined surface, passing through said predetermined clearances between the sealing plates to thereby prevent leakage of the pressurized heating fluid from said heating chamber.