Debarking Process Optimization

Debarking Drum Drum Gate

Drum Discharge

Conveyor

Chipper

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Chemical Pulping Processes

Herbert Sixta, Antje Potthast, Andreas W. Krotschek

4.1

Introduction

Pulping represents the process by which wood or other lignocellulosic material is

reduced to a fibrous mass, denoted as pulp. The process of defibration can be

accomplished mechanically, chemically, or by a combination of both treatments.

The corresponding commercial processes are then classified as mechanical, chemical

and semi-chemical. Pulps produced in different ways have different properties

that make them suited to particular products. Figure 4.1 illustrates the effects

of different pulping processes on the strength properties of unbleached spruce

pulps [1].

Дата добавления: 2015-10-21