Pulping Equipment

Digester

A key chemical pulping vessel that uses temperature, pressure, and chemicals to convert wood or non-wood feedstock into pulp.

Application: chemical pulpingType: batch or continuous digesterFunction: controlled cooking and delignification
Digester vessel

Product Introduction

Digesters are central to chemical pulping mills where controlled cooking determines pulp yield, cleanliness, and chemical efficiency. The system is typically designed around raw material type, target pulp grade, and recovery integration.

Typical Supply Scope

  • Cooking vessel and circulation arrangement
  • Feed, discharge, and blow system support
  • Integration with washing, recovery, and chemical systems

Application Notes

Usually considered in kraft or other chemical pulping projects where fiber separation relies on chemical cooking rather than mechanical disintegration alone.

ItemTypical Range
ApplicationWood chips, selected non-wood chemical pulping
TypeBatch or continuous
Operating modeHigh temperature and pressure with chemical liquor
IntegrationWashing, screening, bleaching, recovery system
Design focusPulp yield, cook uniformity, and process safety
CapacityConfigured according to mill pulping target