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Record 1 - internal organization data 2017-11-20
Record 1, English
Record 1, Subject field(s)
- Pulp and Paper
Record 1, Main entry term, English
- pressure screen knotter
1, record 1, English, pressure%20screen%20knotter
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- pressure knotter 1, record 1, English, pressure%20knotter
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
In a low-yield (i.e., bleachable grade) chemical pulping operation, knots are generally defined as the fraction of pulp that is retained on a 3/8" perforated plate ... The pressure screen knotter ... consists of a totally enclosed cylindrical, perforated screen through which accepted stock flows. A rotating foil produces a series of pressure and vacuum pulses to keep the perforations clean. Knots are retained on the entrance side of the screen and are continuously discharged, along with some good fiber. The main drawback of the pressure knotter is the requirement for secondary screening of the reject stream to return good fiber back to the system. 1, record 1, English, - pressure%20screen%20knotter
Record 1, French
Record 1, Domaine(s)
- Pâtes et papier
Record 1, Main entry term, French
- trieur de nœuds sous pression
1, record 1, French, trieur%20de%20n%26oelig%3Buds%20sous%20pression
masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 OBS
Les nœuds sont en général définis comme la quantité de pâte retenue (comme des copeaux de bois ou des amas de fibres) sur une plaque percée de trous de 0,95 cm de diamètre. [...] On utilise actuellement deux grands types de trieurs de nœuds [...] le classeur vibrant [...] Le classeur sous pression consiste en un cylindre complètement fermé et un tamis à travers duquel s'écoule la pâte acceptée. Une racle rotative produit une série de pulsations de vide et de pression contribuant à maintenir les orifices propres. Les nœuds sont retenus à l'entrée du classeur et évacués en continu en même temps qu'une certaine quantité de fibres acceptables. Ce type de classeur présente donc pour principal inconvénient de nécessiter une seconde étape de classage ayant pour objet la récupération des fibres en question. 1, record 1, French, - trieur%20de%20n%26oelig%3Buds%20sous%20pression
Record 1, Spanish
Record 1, Textual support, Spanish
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