IT1150739B - Paper-making pulp prodn. - Google Patents

Paper-making pulp prodn.

Info

Publication number
IT1150739B
IT1150739B IT20505/82A IT2050582A IT1150739B IT 1150739 B IT1150739 B IT 1150739B IT 20505/82 A IT20505/82 A IT 20505/82A IT 2050582 A IT2050582 A IT 2050582A IT 1150739 B IT1150739 B IT 1150739B
Authority
IT
Italy
Prior art keywords
pref
grinder
grinding zone
chips
paper
Prior art date
Application number
IT20505/82A
Other languages
Italian (it)
Other versions
IT8220505A0 (en
Inventor
Gustaf Ranhagen
Original Assignee
Sunds Defibrator
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sunds Defibrator filed Critical Sunds Defibrator
Priority to IT20505/82A priority Critical patent/IT1150739B/en
Publication of IT8220505A0 publication Critical patent/IT8220505A0/en
Application granted granted Critical
Publication of IT1150739B publication Critical patent/IT1150739B/en

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Abstract

Lignocellulosic material such as wood chips is ground to form papermaking pulp by feeding a compressed mass of the chips non-rotationally into a grinding zone defined between converging walls, one of which is provided by a rotary grinder. Detached fibres are continuously removed from the grinding zone, and pref. the grinder operates at superatmos. pressure. Pref. treatment liqds. such as chemicals, alkali, are fed to the grinding zone during operation of the grinder. Pref. the compressed mass of chips is shaped to tubular form between a core rod and an outer casing.
IT20505/82A 1982-03-31 1982-03-31 Paper-making pulp prodn. IT1150739B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT20505/82A IT1150739B (en) 1982-03-31 1982-03-31 Paper-making pulp prodn.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT20505/82A IT1150739B (en) 1982-03-31 1982-03-31 Paper-making pulp prodn.

Publications (2)

Publication Number Publication Date
IT8220505A0 IT8220505A0 (en) 1982-03-31
IT1150739B true IT1150739B (en) 1986-12-17

Family

ID=11167940

Family Applications (1)

Application Number Title Priority Date Filing Date
IT20505/82A IT1150739B (en) 1982-03-31 1982-03-31 Paper-making pulp prodn.

Country Status (1)

Country Link
IT (1) IT1150739B (en)

Also Published As

Publication number Publication date
IT8220505A0 (en) 1982-03-31

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