Sandvic
Sandvic
Sandvic
sulphur solidification
and handling systems
A total capability
At the heart of every system we deliver Rotoform unit – sulphur feeding end
is the solidification unit, consisting of a
feeding device and cooler.All our systems
make use of indirect cooling, with the
heat of the molten product being
transferred through the steel belt by
means of cooling water sprayed on the
underside of the belt.
Cooling tower
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Sandvik Process Systems is
approved to DIN EN ISO 9001: 2000
– the international recognition of
Control room highest quality standards and
practices.
Cooling section
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The process... the product...
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Sandvik pastillation plant with 4 Rotoform units and 2 truck loading stations
PC
M
Bucket elevator
RF-Unit 1
Conveyor
Filter RF-Unit 2
Liquid sulphur
M
RF-Unit 3
Storage silo
Sulphur pump
M
Cooling water
Cooling water
return
Truck
loading
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The proven performance of the
Rotoform process
Since the early 1980s, some 300+
Rotoform units have been commissioned
and installed around the world for the
pastillation of sulphur, and this proven
success is the result of the unique
combination of benefits provided by this
technology.
Super-efficient process
• Indirect heat transfer: no contact
between product and cooling medium.
• Controlled crystallization: well defined
cooling time.
• Environmentally friendly: emissions
within the limits of international laws
and cooling water recycled.
• Maximum flexibility: rapid changeover
to partial operation without affecting
quality.
• Quick start-up of plant.
Rotoform units in a solidification plant in Sicily
Versatile, reliable equipment
• Efficient modular system: ability to
increase capacity simply by grouping
several identical units together.
• Reliable operation with minimal
service requirements: suitable for
remote areas.
• Reliable development and back-up
through test and pilot plants.
• Worldwide service network available
at short notice.
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The Sandvik Rotoformer®
Product
Pastille shape hemispherical, uniform
Pastille diameter 2-4 mm
Bulk density >1,150 kg/m3 loose
>1,320 kg/m3 packed
Dust (<0.3 mm) as produced < 0.2%
Friability stress level (acc. to SUDIC) < 2%
Unit
Capacity max 6 t/h
Capacity range 70-100%
Belt area 7.5 m x 1.5 m
Floorspace requirement approx. 11.0 m x 2.0 m
heating
D = 80 mm
Steel belt
Free flowing dustfree sulphur pastilles Basic principle of Rotoform 3000
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Rotoform HS – patented for high capacity
Building on the proven strengths of the Rotoform principle – the Rotoform HS
The Rotoform HS is a
revolutionary new solution for
pastillation of liquids, developed
by Sandvik Process Systems, the
expert in melt granulation.
F1 = F2
V1 V2 » V1 V2
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pastillation of liquid melts
Steel belt
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Successful sulphur handling
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The Sandvik sulphur solidification and
handling system at the Caltex plant in
Cape Town, South Africa is based around
two Sandvik Rotoform units. This
installation was completed in 2002 and
is operating to the customer’s full
satisfaction.
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Successful sulphur handling
46 Rotoform units in one solidification plant at Shell/Canada Free flowing pastilles at a Sicilian sulphur plant
The Sandvik sulphur solidification system largest installation of its kind in the world.
at Shantz forming plant takes liquid Shell chose Sandvik for a number of
sulphur feed from the Caroline/Canada factors including capacity, environmental
gas plant. implications such as dust and other
effluents, product quality, maintenance
With 46 Rotoform installations and the requirements, safety and ease of
capacity to produce up to 6,000 tonnes operation.
PS-417 ENG 09.2007 – Printed in Germany
www.smt.sandvik.com/sps