Refiners


HRT 34 EcoFiber Refiner


Discs diameter (in) 34 38 40
Average production * (t/d) 260 350 500
Power rating (kW) 600 750 900
Rotor speed (rpm) 600 514 514
No-load* (kW) 150 180 200

*Subject to changes according to the process conditions and discs configuration.


Technology

New concept in low-consistency refiners, designed to optimize energy consumption and to improve the fiber treatment with state-of-art concepts.


Design

Fast plate changing device, resulting in increased operator’s safety and time saving.

Fixed shaft and ribbed hub system

Stainless steel-clad external rings on the refiner covers and body


Low Intensity Refining Plates

Increased paper web flexibility and softness

Increased paper web bulk

Significantly reduced energy consumption

Increased wet paper web strength, resulting in improved operability

See detailed information on page Refiner Plates.


Spline Shaft System

Eliminates the axial movement of main shaft

No sliding coupling needed

Removes all main Shaft movement devices

Reduces the main shaft natural wearing

Improves the gasket sealing avoiding stock leakage

Increases Refining plates lifespan


Refining plates quick change system


It is an integrated system that makes the refining plate to change faster and safely

It saves time

Improves operator’s safety


DD series Refiners


Model DD-20" DD-26"
Maximum throughput (t/d) 50 100
Maximum consistency (%) 6 6
Power rating (kW) 110-220 185-370
Ø allowed refining plates diameter (in) 18-20-22 24-26-29

Quality

Refiners widely acknowledged by the market due to their quality and efficiency

Extended refiner useful life due to high mechanical ruggedness and all parts in contact with the pulp made in stainless steel.

Low Operational Cost

Excellent refining performance with assisted control of the refining energy used, via a PLC programmed for this application


Application

Equipment designed for applications with low consistency (up to 6%) and able to operate in stock preparation or in approach flow systems.


Safety


Electronic and mechanical safeguards that increase operator safety in compliance with the highest Safety Standards


Operation Management

Power assisted control of refining energy, with a PLC dedicated for this application

The system also allows real-time monitoring of bearing temperature, sealing water pressure and stock inlet and outlet pressure


Spline Shaft System

Eliminates the axial movement of main shaft

No sliding coupling needed

Removes all main Shaft movement devices

Reduces the main shaft natural wearing

Improves the gasket sealing avoiding stock leakage

Increases Refining plates lifespan


Refining Optimization

Our field team carries out surveys related to the process and the refiner installation; besides that, it evaluates the equipment conditions

Based on all information collected, we offer technical guidance for improvements in the process that targets energy savings, reduction of water consumption and eventually improvements on fiber treatment

This can be done on installations with Hergen refiners as well as on installations with refiners from different brands