Double Disc Refiner Continuous Beating of Pulp Based on Waste Paper for Paper Pulp Making Machinery

Product Description

Product Description
Double Disc Refiner is a beating equipment, featuring compact conformation, less floor area, higher efficiency, lower energy consumption, well adaptability, friendly operation, flexible adjustment and easy maintenance. It is a relatively ideal continuous pulping system at present. As required by pulping process, paper factories may choose a single set or several sets for parallel operation or series operation.
Detailed Photos
Our Advantages
DD series double disc refiner is available for continuous beating section of paper industry. It is available for continuous beating of virgin pulp, chemical wood pulp, mechanical pulp and waste paper pulp.
*Specially designed rotary disc is self aligned automatically under the function of stock.
Advantage :
*According to refining requirement, clearance is adjustable through electromechanical device.
*Special tool for easy and fast change of refiner disc.
*High strength welded structure to ensure stable and reliable operation.
*The beating effect is stable and uniform. Key Feature
1. Improve the beating degree and wet weigh of pulp.
2.The equipment is furnished with automatic control system and can beat with constant power or constant energy consumption.
3.The rotary disc and the main shaft are splined to ensure the pressure balance in the two grinding areas.
4.The beating effect is stable and uniform.
Product Parameters

Item Type	DD-380	DD-450	DD-500	DD-550	DD-600	DD-660	DD-720	DD-900	DD-1100
Diameter of Plate	Φ380	Φ450	Φ500	Φ550	Φ600	Φ660	Φ720	Φ900	Φ1100
Production(t/d)	6-20	8~80	10~100	10~120	12~150	15~200	15~250	20~400	40~800
Power	37	90~160	132~200	160~250	185~315	220~500	250~800	315~1000	400~1800
Consistency	3%~5%

Structure and Principle
This refiner is made up of main body, coupling and feed gear, etc.
1.Main body The refiner has two abrasive sections. By the inclination angle of abrasion pattern, four abrasive plates are fixed, two left and two right. Two left plates are fixed on inner wall of machine shell and inside of rotating disc and two right plates are fixed on outside of rotating disc and moving pedestal, forming two abrasive sections (see drawing for installation instruction). Stock is conveyed to abrasive section through inlet pipe. After beating and refining, pumped out from the abrasive section and flows into shell, at last discharged from outlet pipe.
There are two bearings on the main shaft and fixed by bearing pedestal and connected to motor via coupling by Nylon column pins. The turntable is on the other side of the main shaft. And there are abrasive discs on each end of the turntable, and the turntable rotates between two abrasive discs and axially moves under pressure.
Movable pedestal is adjusted by feed gear with axial movement to adjust the space between two abrasive sections. A feather key is set between movable pedestal and machine case and pushed by trapezoidal screw.
The cover is a welded structure which is connected with the case by pin roll. Withdraw the whole movable pedestal into the cover and loosen the locking bolts before opening the cover. Keep the surface clean and withdraw the movable pedestal into the cover before closing the cover. Then fix uniformly fasten bolts.
2.Coupling Coupling is connected by Nylon column pin with the character of easy dismounting and maintenance. It meets the requirement of displacement of feeding and relieving and transmit torque
3.Feed gear Feed gear covers worm gear reduction system. Under force of worm gear, trapezoidal thread screw rotates and drive the movable pedestal forward or backward. The movable pedestal moves 0.23mm for each circle of motor. When rotating clockwise, it moves forward while anticlockwise backward.
Field Usage
Company Profile

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