Kvaerner Pulping e Screw Press: SP-series l i f o r P t c ... · PB35 012A Recycling & Dewatering...
Transcript of Kvaerner Pulping e Screw Press: SP-series l i f o r P t c ... · PB35 012A Recycling & Dewatering...
PB35 012A
Recycling & Dewatering Division
TM
Kvaerner Pulping
Screw Press: SP-series
Pro
duct
Pro
file
The standard of the industry
Today it is called the Kværner Screw Press. When introduced to the industry in 1920, and for many years afterwards, it was called the Thune Press. Under any name, it is still the standard of the industry.
The Screw Press is used for a variety of dewatering and washing applications in mechanical, recycled and chemical pulping processes.
An excellent choice for dewatering in many applications including:
Removing DCM extractives.
Washing DIP.
Washing high kappa kraft pulp.
Dewatering rejects.
!
!
!
!
Kværner Screw Press BenefitsWide range of capacities
Capacities for single units ranging from 10 to 1000 tons per day, and attainable consistencies of 30% and more, permit excellent dewatering in a wide range of applications. Higher capacities can be reached with our new HiCap screw.
Special bearing design
Standard bearings in a special arrangement allow reversing the screw at maximum loads without risk of damaging the machinery.
Stable discharge consistency
Automatic torque control regulates screw speed according to the process variation to keep a high and constant discharge consistency.
Pilot Tests
Pre-purchase, on-site pilot tests or tests in Kværner laboratories help ensure that the Kværner Screw Press meets a mill's dewatering specifications.
Specially designed press screw for handling all pulps
Kværner has the know-how and engineering skills to design the most appropriate press screw for meeting specific dewatering requirements.
n n
n n
n n
n n
More than 75 years of Screw Press dewatering experience
Two of four Kværner SP70 SLScrew Presses at theHolmen Braviken DIP
mill in Sweden
PB35 013A
Recycling & Dewatering Division
TM
The Kværner Screw Press SP-Series
More than 75 years of dewatering experience and 1000 references support Kværner's claim of top quality and trouble-free operation.
All wetted parts are of high- grade stainless steel.
The pneumatic counter- pressure system with piston- type individual baffles combined with a mechanically adjusted cone ring ensure a high and even discharge consistency.
The drill pattern of the screens and the close tolerances between the screw flight and the screens prevent the fibers from blocking the screen holes.
Improved hard facing on the screw flight at the discharge end significantly reduces abrasion.
The split screen at the discharge end enables easy screw flight inspection and rewelding.
The screen on the screw shaft at the discharge end increases and evens out the discharge consistency.
Available with a mechanical or hydraulic drive. The choice of either is based on Kværner's experience or the mill's preference.
The drive unit together with the thrust bearing at the discharge end minimize tension on the screw press.
!
!
!
!
!
!
!
!
n n
n
n n
n
n n
n
n n
n
SP 23
SP 32L
SP 45L
SP 45SL
SP 70L
SP 70SL
SP 100L
SP 100SL
SP 150L
SP 150SL
2560
4010
4160
4910
6470
7670
7880
9380
9948
11948
850
2600
3200
3700
9900
10700
14900
16000
28250
30650
665
880
1159
1159
1500
1500
2050
2050
2685
2685
660
950
950
950
1420
1420
1700
1700
2245
2245
20
60
120
120
300
300
500
500
1000
1000
Model
Technical Data
Net Weightkg
NominalCapacityBDMT/D
Widthmm
Lengthmm
Heightmm
Pro
duct
Pro
file
Kvaerner Pulping