Device and method for defibrating bast fibre plants

A bast fiber, plant technology, applied in the field of bast fiber plant defibrillation, to achieve the effect of improving impact and synchronous effect

Inactive Publication Date: 2006-03-01
HAV NAFITECH
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  • Abstract
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Problems solved by technology

But such high-speed devices cause the disadvantages described

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  • Device and method for defibrating bast fibre plants

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Embodiment Construction

[0025]The raw material 1 is conveyed to the crushing device 2 according to the drawing. The raw material 1 is, for example, stem material of bast-fiber plants like flax, hemp, kenaf, safflower or jute. The raw material 1 is broken up on stem segments, ie pre-cut to the same or approximately the same length. The thus pre-cut raw material 3 then enters the intermediate silo 4 . The raw material 1 is preferably pre-cut to a length of approximately 80 mm to approximately 120 mm, further preferably approximately 120 mm to approximately 160 mm and particularly preferably approximately 160 mm to approximately 200 mm, and then conveyed to the intermediate silo 4 .

[0026] From the intermediate silo 4 the pre-chopped raw material 3 can be dosed onto a conveying device 5 for conveying the pre-chopped raw material 3 to a secondary processing section for disintegration and separation of the fiber fraction from the chips. The pre-cut raw material 3 is conveyed to the first power decompo...

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Abstract

The invention concerns a process and apparatus for defibration of bast fiber plants, especially annual plants such as flax, hemp, kenaf, linseed straw and jute, having comminuting means (2) for precomminuting a starting material (1) and having an intermediate store (4) in which the precomminuted starting material (3) is received and from which the precomminuted starting material (3) is dispensed for a metered feed to a downstream processing sector for fiber-extractive destructurization and for separation of fiber fractions and shives. A series arrangement of plural coarse destructurizing means (6,8) and plural fine destructurizing means (7,9,10) is formed along the processing sector which is meteredly fed with the precomminuted starting material (3).

Description

technical field [0001] The present invention relates to a device and a method for defibrating, inter alia, bast fiber plants of annual plants such as flax, hemp, kenaf, cinnamon and jute. Background technique [0002] Renewable raw materials are increasingly favored because they not only conserve existing resources, but also contribute to the reduction of CO, a well-known greenhouse gas. 2 made a contribution. Both the fiber part and the so-called shreds of the woody part of the bast fibrous plant stem are utilized in different fields of application. A number of methods and devices have therefore been developed to separate the fiber fraction and fines from the raw material. This process is often referred to as defibration or delignification. In this case, the raw material is subjected to a defibration process, after which the fibrous fraction is separated from the fines. [0003] The purpose of processing annual plants such as flax or hemp is to adapt the characteristic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01B1/14D01B1/28
CPCD01B1/28
Inventor 布特努特・冈特
Owner HAV NAFITECH
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