Paper making and fiber liberation – Apparatus – Digester
Reexamination Certificate
2005-10-25
2005-10-25
Alvo, Steve (Department: 1731)
Paper making and fiber liberation
Apparatus
Digester
C162S243000, C162S261000, C435S287100, C435S290200, C435S303100, C435S308100
Reexamination Certificate
active
06958110
ABSTRACT:
Apparatus for the production of cellulose paper pulps from vegetative masses, comprising: a tower for sterilizing the mass to form a culture medium; a first screw for mixing the sterilized mass with an inoculum and handling the same in a sterile environment; a first conditioning and reaction chamber for mixing and handling the inoculated mass in a sterile environment and controlled atmosphere of CO2 and O2, with controlled temperature and pH; a hydraulic pulper for the elementarization of the mass and its soaking up with suspensions of enzyme mixes; a hammer mill for the elementarization of vegetative material, to break up knots of stems and to pulverize leaves, detach bast from wood; a rotating tumbler having reels and counter reels for separating various fractions; a rotor compactor to reduce the volume of the vegetable mass and to remove air contained in the same; a second screw for mixing the compacted vegetetative mass with extracts containing enzymes and with water for handling in a sterile environment; a second conditioning and reaction chamber having means for mixing and handling of the vegetative mass mixed with the enzymes in a sterile environment and controlled temperature of CO2 and O2, with controlled temperature and pH.
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Baldo Ruggero
Cappelletto Pier Luigi
D'Annibale Alessandro
Giovannozzi Sermanni Giovanni
Perani Claudio
Alvo Steve
Collard & Roe P.C.
Consiglio Nazionale Delle Ricerche
Universita' Degli Studi Della Tuscia
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