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DD refiner


Key words:

pulp refiner

double disc refiner

DD refiner


Classification:


Attachment


DD refiner is made of niobium alloy cast iron, widely used in the beating of straw pulp, waste paper pulp, hardwood pulp and softwood pulp. It is equipped with manual and electric operation devices to realize manual and electric operation, or is equipped with automatic control system to realize constant energy consumption control method or the beating with constant power control ensures stable beating effect.


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Detailed introduction

There are three kinds of refiner: single-disk grinder, double-disk refiner and DD refiner.
Single-disc refiner pulp from the feed pipe into the center of the grinding area, under the action of centrifugal force and feed pressure through the grinding area, through the grinding area of the teeth of the disk rubbing and squeezing to complete the pulping process, the working principle is that the pulp feed screw tube conveying the pulp to the grinding chamber, relying on the grinding plate grinding into a good pulp.
Double-disk refiner: the pulp from the two feed pipes into the center of the grinding area, under the action of centrifugal force and feed pressure through the grinding area, through the grinding area of the teeth of the disk rubbing and squeezing to complete the pulping process.
Double disc pulper has no requirements for raw materials in general, the basic paper raw materials are used in the pulper, unless it is pure waste paper pulping, there are individual factories will be used in place of a pressure screen pulper, if the raw material is mixed with the pulp board, it must be used in the pulper, generally out of high-grade tissue paper must also be used in the pulper.
DD Pulper is widely used in pulping of grass pulp, waste paper pulp, broadleaf wood pulp and coniferous wood pulp, equipped with manual and electric operating devices to realize manual and electric operation, or equipped with automatic control system to realize constant energy consumption control mode or constant power control of pulping, to ensure stable pulping effect.

Technical Parameter:

Product name refiner
Model DD450 DD500 DD550 DD660 DD720 DD900
speedr/min) 980 980 980 750 750 750
Capacity(t/d) 8-80 10-100 12-150 12-200 15-250 20-400
PowerKW) 90-160 132-200 200-315 220-500 250-800 315-1000
Concentration(%) 3月5日
Maximum operating pressure(MPa) ≤0.6
Diameter of plate(mm) Φ450 Φ500 Φ550 Φ660 Φ720 Φ900
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