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Apparatus for manufacturing fibre pulp from lignocellulose-containing material

A technology of lignocellulose and wood cellulose, applied in fiber raw material, fiber raw material processing, papermaking, etc., can solve the problems of insufficient efficiency, wear and turbulence, and achieve the effect of saving energy, less wear and better cleaning

Active Publication Date: 2014-11-12
VALMET OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with them is that they are not effective enough
Additionally, they have a tendency to create turbulence, which creates wear

Method used

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  • Apparatus for manufacturing fibre pulp from lignocellulose-containing material
  • Apparatus for manufacturing fibre pulp from lignocellulose-containing material
  • Apparatus for manufacturing fibre pulp from lignocellulose-containing material

Examples

Experimental program
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Effect test

Embodiment Construction

[0012] figure 1 and 2 A refiner 1 according to the invention is disclosed in , which is an example of an apparatus 1 for producing fibrous pulp from lignocellulose-containing material. The refiner 1 includes a housing 2, which encloses a fixed refining disc 3 and a rotary refining disc 4, the fixed refining disc 3 is also called a stator, and the rotary refining disc 4 is also called a rotor. A stationary refining disc 3 may be connected to the housing 2 . The rotary refining disc 4 is driven by a motor (not shown) through a rotating shaft 5 and preferably rotates at 1500-2300 rpm. It is also possible to have two rotary refining discs 3 , 4 . The refining discs 3, 4 are provided on their surfaces facing each other with refining elements 6, 7, between which a refining gap 8 is defined between themselves, which is preferably 0.1- 2mm.

[0013] The stationary refining disc 3 has an inlet 9 through which the material to be refined is fed into the gap 8 . Before the material ...

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Abstract

The invention is related to an apparatus for manufacturing fibre pulp from lignocellulose-containing material, comprising a housing (2) enclosing two refining disks (3, 4) having opposing refining elements (6, 7), which refining elements (6, 7) between themselves form at least one refining gap (8), in which refining gap (8) the lingocellulose-containing material is arranged to be disintegrated into fibre pulp, wherein at least one refining disk (4) is arranged on a rotary shaft (5) and is rotary in a direction of rotation (R) and having a rear side (11) away from the refining gap (8), so that a space (10) is created between the rear side (11) of the rotary refining disk (4) and the housing (2), which rear side (11) is provided with a centre (14), a circumference (17) and at least one wing member (12, 12a, 12b, 12c) arranged to prevent pulp from sticking on the rear side (11). According to the invention, the rotary refining disk (4) has at least one thought radial line (13) on its rear side (11) extending from the centre (14) to the circumference (17) and in that at least one wing member (12, 12a, 12b, 12c) is attached to the rear side (11) at an (alpha, alpha1, alpha2, alpha3) from the at least one thought radial line (13) and towards the direction of rotation (R).

Description

technical field [0001] The invention relates to a plant for producing fiber pulp from lignocellulose-containing material according to the preamble of claim 1 . Background technique [0002] A disc refiner or grinder comprises a housing enclosing two opposing refining discs, at least one of which is rotatable. The refining discs each have refining elements with refining gaps formed between them for disintegrating lignocellulosic material such as chips from soft or hard wood, bamboo, straw, bagasse or the like into fibrous pulp . The pulp leaves the refiner through the space on the rear side of the rotating refining disc. One problem is that the pulp sticks to the rear side and housing of the rotary refining disc and also exerts a force on the bearing which may destroy the bearing. Accumulations of charred fiber bundles or particles may later loosen and subsequently cause problems in other processing steps. A common problem is e.g. points on a board. [0003] It is known ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21B1/14B02C7/12D21D1/30
CPCD21D1/306D21D1/30B02C7/12D21B1/14
Inventor O·阿尔格伦
Owner VALMET OY
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