Transcript Laborrefiner LR 40

ELOF HANSSON
TECHNOLOGY DAYS
April 26th 2013
Frank-PTI
Laboratory Refiner
LR 40
Type Voith
Gunnar Lindblad
VPR Chapter 09 No 0653 Ed 01
Laboratory Refiner LR1
Laboratory Refiner LR40
Laborrefiner LR40: System
Water
VPR Chapter 09 No 3475 Ed 01
Pulp
Pulper
MonoPump
Refiner
Sampling position
with balance
Laborrefiner LR40: Versuchsstand
1. User interface
2. Pulper
3. Sampling Point
VPR Chapter 09 No 3478 Ed 01
4. Electrical cabinet
1
3
2
5.
Refine
r
5
4
VPR Chapter 09 No 2052 Ed 01
Laboratory Refiner: Refiner segments
Laboratory Refiner LR40
Technical Data
Noice level
Dimension and weight
Floor Unit
VPR Chapter 09 No 0652 Ed 03
Control cabinet
Connections
Pulp Consistency
Balance range
Max. 6 Samples
< 76dBA
BxTxH:
Weight:
BxTxH:
Weight:
2,37 x 0,9 x 1,8m
1300kg
1,2 x 0,6 x 2,0m
360kg
400V / 50Hz
Compressed Air > 3 bar
Fresh water
3 - 5,5 %
1200 - 1900g otro
(Total test volume 12l)
Laboratory Refiner LR40
Application
• grinding of primary and secondary fibers
• Delivery and quality control
• Research and Development
VPR Chapter 09 No 0653 Ed 01
Features
• Table Model
• Modular design allows use of disks and cone segments
• Easy and quick segment changes
• Very simple, menu-driven operation
• Fully automatic sampling
• High accuracy
• Excellent repeatability
• Evaluation of all data through an integrated computer
• Operation and control based on parameters and measurements, which are also
used in the industrial process
Laboratory Refiner LR 40 - Photos
Laboratory Refiner LR 40 – without front
cover
LR 40 User interface
Front view
Inside view
LR40 – Torque measurment
Sampling – Valve assembly
Back pressure valve
Sample valve
Turntable
Drain valve
Sampling - Balance
Balance loadcell
Turntable
Turntable
Light sensor
LR40 – Distribution box on the table and
solenoid valves
LR40 – Segment change
Spindle
Stator
LR40 – Cabinet and cableing in the table
Cable, with direct entry to the cabinet
Technology
Freeness value [SR
Reproducibility with LR-1 freeness
measurements
Bleached Sulfate Pulp
from Pine
Laboratory Refiner
LR-1
1 trial
2 trial
3 trial
Energy
Tear Index [mNm2/g]
Burst Index [kPam2/g]
Repeatability with the LR-1 strengths
SR value {SR]
Bleached Sulfate Pulp
from Pine 2,1 J/m
Tear resistance [Nm/g]
1 trial
2 trial
3 trial
Burst Index [kPam2/g]
Tear Index [mNm2/g]
Comparison between LR-1 and the PFI Mill
SR value {SR]
Bleached Sulfate Pulp
from Pine 2,1 J/m
Tear resistance [Nm/g]
Laboratory refiner LR-1
PFI-Mill
Comparison between LR-1 and
a Double disk refiner
Burst Index [kPam2/g]
Tear Index [mNm2/g]
Strength Development
SR value {SR]
Bleached Sulfate Pulp
from Pine 2,1 J/m
Tear resistance [Nm/g]
Laboratory refiner LR-1
Double Disk refiner
DSR1
60
2/g]
Tear Index [mNm
[mN/g]
Reisslängenindex
[SR
value[SR]
Freeness
SR- Wert
VPR Chapter 09 No 3511 Ed 01
Comparison with Industrial refining:
Specific energy and Tear index
50
40
30
20
10
0
0
100
200
300
400
80
60
40
20
0
10
20
Refiner Energy [kWh/t]
Pulp: Acacia
Laboratory Refiner
30
40
50
60
-Wert
Freeness SR
value
[SR[SR]
TwinFlo
0.75
Spec.. Volume [cm3/g]
Mean Fiber length [mm]
VPR Chapter 09 No 3512 Ed 01
Comparison with Industrial refining:
Fiber length and spec. Volume
0.70
0.65
0.60
0.55
0.50
10
20
30
40
50
60
Freeness value [SR]
Pulp: Acacia
2.5
2.0
1.5
1.0
10
20
Laboratory Refiner
30
40
50
60
Freeness value [SR]
TwinFlo