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cooling, heating and drying a widevariety of free flowing bulk solids such as sugars, fertilizers,chemicals, plastics, minerals, oilseeds, and many other types ofgranules, crystals and powders.
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World Leaders in
EnergyEfficientTechnology for Cooling, Heating and Drying Bulk Solids.
World Leaders in
EnergyEfficientTechnology for Cooling, Heating and Drying Bulk Solids.
World leading technology for cooling, heating and drying a wide variety of free flowing bulk solids such as sugars, fertilizers, chemicals, plastics, minerals, oilseeds, and many other types of granules, crystals and powders.
ContentBULK SOLIDS COOLING TECHNOLOGY
Cooling Product from 400ºC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cooling Product from 2000ºC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BULK SOLIDS HEATING TECHNOLOGY
Heating Using Steam, Hot Water, Thermal Oil . . . . . . . . . .
BULK SOLIDS DRYING TECHNOLOGY
Drying Bulk Solids, Oilseeds & Grains . . . . . . . . . . . . . . . . . . . . . . . . .
SOLIDS-TO-AIR HEAT EXCHANGE
Indirect Cooling & Heating Using Air/Gas . . . . . . . . . . . . . . . . . . .
APPLICATIONS
Chemicals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fertilizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sugars . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Polymers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dried Biosolids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Minerals and Sands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oilseeds and Grains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DESIGN ADVANTAGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DISCHARGE OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TESTING
Lab Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pilot Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENERGY EFFICIENCY
What Makes Solex Technology So Efficient? . . . . . . . . . . . . . .
ABOUT SOLEX
Experience, Service, and Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation Photos . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Technology
Technology for Cooling, Heating & Drying Bulk Solids that uses up to 90% less energy.
BULK SOLIDS COOLING TECHNOLOGY
Cooling Product from 400ºC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Indirect plate cooling technology works by passing cooling water in the plates to cool material by conduction.
Cooling Product from 2000ºC . . . . . . . . . . . . . . . . . . . . . . . . . . 6Indirect plate cooling technology for challenging high temperature applications.
BULK SOLIDS HEATING TECHNOLOGY
Heating Using Steam, Hot Water, Thermal Oil . . . 8Indirect heating of bulk solids by passing steam, hot water or thermal oil through hollow heat exchanger plates.
BULK SOLIDS DRYING TECHNOLOGY
Drying Bulk Solids, Oilseeds & Grains . . . . . . . . . . . . . . 10Ultra-efficient drying technology combining
indirect heat transfer and low volume purge air.
SOLIDS-TO-AIR HEAT EXCHANGE
Indirect Cooling & Heating Using Air/Gas . . . . . . . . 15
Scan this QR code to view a video about Solex capabilities.
Learn more at www.solexthermal.com
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Slow & Controlled Product Flow Bulk solids pass slowly downward between a series
of vertical hollow heat exchanger plates.
Indirect Plate Cooling Cooling water flows through the plates to cool the material by conduction.
Mass Flow Technology The mass flow discharge feeder creates uniform product velocity through the cooler and regulates the product flow rate.
Specifications
Capacity: 100 kg/hr to 150,000 kg/hr Cooling Medium: Water, Glycol Product Temperatures: up to 400ºC
Uses up to 90% Less EnergyThe Solex cool ing technology i s
ultra-efficient, using up to 90% less energy
than technologies such as fluid beds or
rotary drums that require the use of air.
Produces a Superior Final ProductThe s low and control led movement of the product through the cooler prevents p ro d u c t a b r a s io n a n d degradation so that there is no change in particle characteristics or crystal shape.
Compact and Modular DesignThe compact installation footprint makes this
design easy to integrate into existing plants,
and is ideal for debottlenecking or revamps. The
modular design means additional heat exchanger
plate banks can be stacked if increased cooling
capacity is required in the future.
ZERO Emissions, Dust, Fines & OdorThe indirect plate cooling design means air is not in contact with the product during the cooling process. Emissions, dust, fines and odors are eliminated..
Uniform Final Product TemperaturesThe mass f low design
means the product moves
slowly and with uniform
velocit y through the
cooler. This enables even
temperature distribution
producing stable and
uniform f inal product
temperatures.
Reduced Installation CostsSince air is not used in the heating process,
installed capital costs are reduced due to
the elimination of costly and unnecessary air
handling equipment.
WH
Y IT
’S B
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Bulk Solids Cooling Technology(Cooling Product from 400ºC)
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Learn more at www.solexthermal.com
EN
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CO
VE
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Indirect Plate Cooling Technology Makes Energy Recovery EasyDuring the cooling process, the heat from the bulk solids is transferred to the cooling water, producing pressurized hot water that can then be used for other processes, such as building heat, pre-heating air, or pre-heating product.
Recovering Heat from Bulk Solids Cooling Process
Bulk Solids Cooling Technology Energy Recovery While Cooling Bulk Solids(Cooling Product from 400ºC) (Cooling Product from 400ºC)
Learn more at www.solexthermal.com
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Finally, a Solution for Cooling High Temperature Bulk SolidsCooling high temperature bulk solids is inherently challenging
due to large thermal gradients and high stresses. The
high temperature cooler from Solex is a fit-for-purpose
technology engineered specifically for cooling high temperature
materials up to 2000ºC.
Uses up to 90% Less EnergyThe Solex bulk so l ids cool ing
technology is ultra-efficient, using
up to 90% less energy than other
technologies.
Recovers High Grade HeatThe indirect cooling design
enables efficient recovery of
heat from high temperature bulk
solids during the cooling process.
The heat is most easily recovered
as pressurized hot water that can
be flashed to steam.
WH
Y IT
’S B
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Slow & Controlled Product Flow Bulk solids pass slowly downward between a series
of vertical hollow heat exchanger plates.
Indirect Plate Cooling Cooling water flows through the plates to cool the material by conduction.
Mass Flow Technology The mass flow discharge feeder creates uniform product velocity through the cooler and regulates the product flow rate.
Specifications
Capacity: 100 kg/hr to 150,000 kg/hr Cooling Medium: Water Product Temperatures: up to 2000ºC
(Cooling Product from 2000ºC)High Temperature Bulk Solids Cooling Technology
Guaranteed Thermal PerformanceSolex’s proprietary thermal modeling
so f t ware, ThermaPro, accu ra te l y
models produc t temperatures of the
material at each point through the heat
exchanger. The result is guaranteed
thermal performance.
Advanced EngineeringExtensive modeling, including finite element analysis (FEA) is
carried out to ensure successful operation under extreme conditions.
Plate Profile Engineered for High Temperature CoolingSpecially designed plates for high temperature service are
engineered to minimize thermal stresses. Low s tress
levels are achieved with multiple banks to reduce the
temperature gradient over each bank. Precise design ensures
uniform water distribution which eliminates stagnate zones.
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Learn more at www.solexthermal.com
EN
ER
GY
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CO
VE
RYRecovering High Grade Heat from High Temperature SolidsSolex Technology can recover the heat during the cooling process in the form of pressurized hot water, which can be flashed to steam and made available as an energy source elsewhere in your facility.
Conceptual energy recovery loop for cooling high temperature solids, such as ash, petroleum coke or graphite.
Recovering High Grade Heat While Cooling High Temperature Solids
Energy Recovery Technology(Cooling Product from 2000ºC)
Scan this QR code to view a video about Solex high temperature technology.
Learn more at www.solexthermal.com
8
Uses up to 90% Less EnergyT h e S o l e x b u l k s o l i d s h e a t i n g
technology is ultra-efficient, using up to
90% less energy than other technologies.
Produces a Superior Final ProductThe slow movement of the
product through the heat
exchanger prevents product
abrasion and degradation so
that there is no change in
particle characteristics or
crystal shape.
Compact and Modular DesignThe compact installation footprint makes this
design easy to integrate into existing plants,
and is ideal for debottlenecking or revamps.
The modular design means additional heat
exchanger plate banks can be stacked if
increased capacity is required in the future.
ZERO Emissions, Dust, Fines & OdorThe indirect plate heating design means air
is not in contact with the product during the
heating process. Emissions, dust, fines and
odors are eliminated.
Uniform Final Product TemperaturesThe mass flow design means
the product moves slowly and
with uniform velocity through
the heater. This enables even
temperature dis tr ibut ion
producing stable and uniform
final product temperatures.
Reduced Installation CostsSince air is not used in the heating process,
installed capital costs are reduced due to the
elimination of costly and unnecessary air
handling equipment.
WH
Y IT
’S B
ETT
ER
Specifications
Capacity: 100 kg/hr to 150,000 kg/hr Heating Medium: Hot Water, Steam, Thermal Oil Product Temperatures: up to 300ºC
Bulk Solids Heating Technology(Using Steam, Hot Water, or Thermal Oil)
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Slow & Controlled Product Flow Bulk solids pass slowly downward between a series
of vertical hollow heat exchanger plates.
Indirect Plate Heating Heat transfer media such as steam, hot water or thermal oil flows through the plates to heat the material by conduction.
Mass Flow Technology The mass flow discharge feeder creates uniform product velocity through the heater and regulates the product flow rate.
9
Learn more at www.solexthermal.com
EN
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Use Recovered Energy to Heat Bulk Solids
Indirect Plate Heating Technology Makes Energy Recovery EasyThe unique design of the Solex heat exchanger plates makes it possible for the plates to heat the bulk solids by conduction using a variety of recovered heat mediums, such as hot water, steam, thermal oil, or even air.
Heating Bulk Solids with Recovered Exhaust Gases
Typical energy recovery loop in a glass plant
Learn more at www.solexthermal.com
10
Precise Temperature and Moisture ControlSolex dryer/conditioner technology enables both moisture content and the temperature
of the final product to be independently and precisely controlled. The combination of the
two media - indirect heat and cross-flow air - enables accurate control over the desired outcomes. The
indirect method of heating regulates the final product temperature; at the same time, the amount of
cross-flow air used regulates the final product moisture content.
Ultra-Efficient Technology with 90%+ EfficienciesThe indirect method of heating the product serves to heat the product and maintain the temperature
of the cross-flow air. Since the temperature of the cross-flow air does not drop, the air maintains its
moisture carrying capacity and is capable of carrying larger quantities of moisture. As a result, only
a very small amount of cross-flow air is needed to remove moisture from the product. The result is
efficiencies of greater than 90%.
Cross-Flow Air
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SBulk Solids Drying Technology
Slow & Controlled Product Flow Bulk solids pass slowly downward between a series of vertical hollow heat exchanger plates.
Indirect Heating Hot water, steam (or waste heat) flow through the plates to heat the material and evaporate moisture from the product.
Cross–Flow Air Removes Product MoistureA small amount of cross-flow air is used to remove moisture from the product.
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Learn more at www.solexthermal.com
Ultra-Efficient Drying Technology
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The Problem with Conventional Dryers
Conventional drying technologies utilize hot air to heat the product and remove moisture from the product. In this process the following takes place:
Air at ambient temperature
Is heated
Reaches its saturation point after absorbing moisture from the product
The Solex Drying/Conditioning Process Increases the moisture carrying capacity of the air by using indirect heating technology to keep the temperature of the drying air constant. As a result, only a very small amount of cross-flow air is needed to remove moisture from the product. The efficiency of this technology is greater than 90%.
Solex Technology vs. Conventional Dryers
Learn more at www.solexthermal.com
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Drying Bulk Solids with Recovered EnergyE
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Solex Dryer Technology Operates on 100% Recovered Energy. Due to the indirect method of heating, the Solex dryer can utilize waste heat from elsewhere in your facility to indirectly heat the product during the drying process.
Drying bulk solids using a combination of recovered heat and steam
Use a combination of recovered energy
and steam to heat and dry bulk solids
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Learn more at www.solexthermal.com
Conditioning or Heating Oilseeds with Recovered EnergyDrying Bulk Solids with Recovered Energy
Reduce Steam Consumption with the Solex Heat Exchanger
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The indirect method of heating utilizing plates can operate with low grade waste heat to assist in the heating of oilseeds. The more recovered energy you have available, the greater the savings.
STEAM
STEAM
STEAM
STEAM
STEAM
STEAM
STEAM
STEAM
STEAM
STEAM
STEAM
STEAM
Recovered Energy Recovered Energy
Recovered Energy
Recovered Energy
Recovered Energy
Recovered Energy
Scan this QR code to view a video about energy recovery possibilities.
Learn more at www.solexthermal.com
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Technology Possibilities with Indirect Air/Gas Cooling
Recovering Energywith
Indirect Air Cooling Technology
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Slow & Controlled Product Flow Bulk solids pass slowly downward between a series of heat exchange elements.
Indirect Heat Exchange Air (or gases), acting as the heat transfer medium, cools or heats the material indirectly by conduction.
Mass Flow Technology A mass flow discharge feeder creates uniform product velocity and regulates the product flow.
EN
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Specifications
Capacity: 100 kg/hr to 100,000 kg/hr Heat Transfer Medium: Air/Gases Product Temperatures: up to 2000ºCPressures: Atmospheric to High Pressure Air/Gases
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Learn more at www.solexthermal.com
Solids-to-Air Heat Exchange
The Advantages of Indirect Heat ExchangeIndirect air/gas heat exchange provides many advantages. The air used for heat exchange never comes into direct contact with the product, which preserves the integrity of the product and eliminates the need to treat the exiting air. It also makes energy recovery while cooling or heating a viable option.
Heating Bulk Solids with
Recovered Exhaust Gases
Technology Possibilities with Indirect Air/Gas Cooling
EN
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Applications
Solex heat exchange technology is engineered specifically for cooling,
heating and drying a variety of free flowing bulk solids such as sugar,
fertilizer, chemicals, plastics, minerals, oilseeds, and many other types
of granules, crystals and powders. Following are some of the most
common applications.
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Chemicals
Fertilizers
Sugar
Polymers
Dried Biosolids
Minerals and Sands
Oilseeds and Grains
page
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Learn more at www.solexthermal.com
APPLICATIONS
COOLING & HEATING CHEMICALS
Indirect Cooling & Heating Technology Ideal for ChemicalsThe Solex heat exchanger is capable of cooling and heating a wide range of chemicals and powders, including high temperature products up to 2000ºC.
Uses up to 90% less energy. Find out more
on page 35.
Cools Chemicals Using up to 90% Less EnergyUses up to 90% less energy than
technologies requiring the use
of air.
Zero EmissionsEmissions, dust, fines and odors are
eliminated because air is not used to
directly heat or cool the product.
Stable Final Product TemperaturesThe mass flow design means that the chemicals move with
uniform velocity through the heat exchanger. This feature,
combined with long residence times, enables even temperature
distribution producing remarkably stable and uniform final
product temperatures.
Zero Product DegradationThe slow and controlled movement of the chemical particles
through the cooler prevents product abrasion and degradation
ensuring that the characteristics of the product are not changed
in the cooling process.
Compact DesignThe vertical configuration gives this heat exchanger a small
installation footprint, making it ideal for debottlenecking, revamps
or capacity increases.
Reduced Installation CostsThe indirect heat exchange design eliminates the need for costly
and unnecessary air handling equipment, significantly reducing
installed capital costs.
Scan this QR code to view a video about Solex technology for chemicals.
Learn more at www.solexthermal.com
18
COOLING & HEATING FERTILIZER
Clear Advantages for the Fertilizer IndustryThe Solex heat exchange technology is widely used in the fertilizer industry due to the many advantages it offers.
Cools Fertilizer Using up to 90% Less
Compact DesignThe vertical configuration gives this heat
exchanger a small installation footprint,
making it ideal for debottlenecking,
revamps or capacity increases.
Zero Product ContaminationSince air is not used to directly cool the product, air is not in
contact with the product eliminating the risk of product
moisture content changes or product contamination.
Zero EmissionsEmissions, dust, fines and odors are eliminated because air is
not used to directly heat or cool the product. (Purge air may be
required.)
Stable Final Product TemperaturesThe mass flow design means that the fertilizer moves with
uniform velocity through the heat exchanger. This feature, combined
with long residence times, produces even temperature distribution
and remarkably stable and uniform final product temperatures.
Guaranteed Product Storage TemperaturesDue to the indirect water-cooled technology, fertilizer can be
efficiently cooled to within approximately 10ºC of cooling
water temperatures, which enables lower produc t
storage temperatures.
APPLICATIONS
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1
0Fluid Bed Cooler Solex Heat Exchanger
*Source: Jacobs Engineering Study 1995Typical energy requirements for a 50 TPH DAP train
Typical Electrical Energy Requirements kW.h/tonne
kW.h
/to
nne
5.3
0.3
Scan this QR code to view a video about Solex technology for fertilizers.
19
Learn more at www.solexthermal.com
APPLICATIONS APPLICATIONS
COOLING & HEATING FERTILIZER
Efficiently Cool Fertilizer Without Caking
The problemFertilizers are hygroscopic, containing a low percentage of water. As they cool, this water
will transfer to the air in the void space which can lead to condensation and caking.
The Solex SolutionSolex has developed advanced modeling based on the critical relative humidity and the drying characteristic of each type and grade
of fertilizer. Caking is prevented by ensuring that the water temperature is above the dew point of the air in the void space between
the prills or granules. In the Solex Fertilizer Cooler, the water temperatures and purge air requirements are carefully selected to
provide optimum cooling performance without the risk of caking.
The Result The Solex heat exchanger cools fertilizers reliably without condensation or product caking.
Temperature (ºC)4020 60 80 100
Product TemperatureDew PointWater Temperature
Water temperature must be to the right of the dew point line to avoid condensation.
PURGE AIR
COOLING WATER OUT
COOLING WATER IN
VENT
HOT PRODUCT IN
COLD PRODUCT OUT
GATE FEEDER
ACTUATOR POSITIONER
Learn more at www.solexthermal.com
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APPLICATIONS
COOLING SUGAR
What Makes Solex Technology Ideal for Cooling Sugar?The ultra-efficient Solex heat exchanger technology is widely used in the
sugar industry due to the many advantages it offers sugar producers.
Cools Sugar Using up to 90% Less EnergyUses up to 90% less energy than
technologies such as fluid beds or
rotary drums that require the use
of air.
Zero Product DegradationThe slow and controlled movement of the sugar crystals through
the cooler prevents product abrasion and degradation ensuring
that the characteristics of the sugar crystals are not changed in
the cooling process.
Guaranteed Storing and Packing TemperaturesWith Solex technology, cooling water temperatures can be
controlled and sugar can be cooled to a specific temperature,
enabling constant storing or packing temperatures year round,
independent of ambient or weather conditions.
Zero Product ContaminationSince air is not used to directly cool the sugar, air is not in
contact with the product, eliminating the risk of bacterial
contamination, odor contamination, and moisture content changes
in the sugar.
Compact DesignThe compact installation footprint makes this design easy to
integrate into existing sugar plants and can conveniently be installed
in conjunction with drum dryers.
Easy to Add Future CapacityThe clever modular design means that additional plate banks can
be stacked if cooling capacity needs to be increased in the future.
Uses up to 90% less energy. Find out more
on page 35.Scan this QR code to view a video about Solex technology for sugar.
21
Learn more at www.solexthermal.com
APPLICATIONSAPPLICATIONS
COOLING SUGAR
Solex Technology Ideal for Debottlenecking and Capacity Increases.The Solex sugar cooler can cool large volumes of sugar with a small installation footprint, making it an ideal solution for capacity increases.
Designed to Cool Large Volumes of SugarThe Solex sugar cooler solves capacity increase challenges. Existing drum coolers can be easily converted to a second stage drum dryer
allowing the compact Solex sugar cooler to be installed downstream as the primary sugar cooler.
40,000 kg/hr Sugar Processing Capacity
60,000 kg/hr Sugar Processing Capacity
Learn more at www.solexthermal.com
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APPLICATIONS
COOLING & HEATING POLYMERS
Technology Advantages for Cooling and Heating PolymersThe Solex indirect cooling and heating technology is ideal for polymer applications due to the many operational advantages it offers.
Zero EmissionsAir emissions, such as VOC, NOX,
dust, fines and odors are eliminated
because air is not used to directly
heat or cool the product.
Zero Product DegradationThe slow and controlled movement of the polymers through
the heat exchanger prevents product abrasion and degradation
ensuring that the characteristics of the polymer pellets are not
changed in the process.
Superior Design for Ongoing MaintenanceThe heat exchanger plates are
configured to enable simple and
complete access for inspection
and cleaning. The design makes
it possible for individual plates to
be isolated or replaced.
Ideal for Degassing and ConditioningThe Solex indirect heat exchanger design is a sealed unit,
designed to operate with blanket gas or a purge gas stream, such
as in degassing and conditioning applications.
Compact DesignThe vertical configuration gives this heat exchanger a small
installation footprint, making it ideal for debottlenecking,
revamps or capacity increases.
Stable Final Product TemperaturesThe mass flow design means that the polymers move with
uniform velocity through the heat exchanger. This feature,
combined with long residence times, enables even temperature
distribution producing remarkably stable and uniform final
product temperatures.
Uses up to 90% less energy. Find out more
on page 35.Scan this QR code to view a video about Solex technology for polymers.
23
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APPLICATIONS
ENERGY RECOVERING OPTIONS - HEATING POLYMERS
Indirect Plate Heating Technology Makes Energy Recovery EasySolex technology makes it easy to capture and use waste heat for preheating polymers. The unique design of the Solex heat exchanger plates makes it possible to heat the bulk solids by conduction using recovered heat from other sources, such as the plastics extruder.
Preheating Resin
with
Recovered Heat
APPLICATIONS
Learn more at www.solexthermal.com
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APPLICATIONS
COOLING DRIED BIOSOLIDS
Cooling Dried BiosolidsThe unique indirect plate cooling design of the Solex heat exchanger does not use air in the cooling process which helps solve many of the challenges when cooling products like dried biosolids.
Zero EmissionsWhen cooling dried biosolids using
the Solex heat exchanger, emissions,
dust, fines and odors are eliminated
because air is not used to directly
cool the product. There is no need
for additional dust removal or odor
control systems.
Maintenance Friendly DesignThe cooling plates in the Solex
heat exchanger are configured to
enable easy access for inspection
and cleaning. The design includes
large access doors that provide
easy entry and make it possible
for single plates to be accessed,
repaired or replaced.
Reduced Installation CostsInstalled capital costs are reduced due to the elimination of costly
and unnecessary air handling equipment such as large diameter
air ducting, motors, fans, scrubbers, chillers, etc.
Prevents Product DegradationThe slow and controlled movement of the dried biosolids through
the heat exchanger prevents product abrasion and degradation
during the cooling process.
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APPLICATIONS
Cools Minerals and Sands Using up to 90% Less EnergyUses up to 90% less energy than
technologies requiring the use of air.
Suitable for High Temperature ProductsUnique design is capable of handling difficult high temperature
products of up to 2000ºC.
Suitable for Highly Abrasive MaterialsThe mass flow design results in low product velocities and low bin-wall
pressures on the heat exchanger plates. This combination results
in extremely low abrasion of the heat exchanger plates and casing.
COOLING & HEATING MINERALS AND SANDS
Cools and Heats Minerals and Sands, Whether Highly Abrasive or Extra HotThe ultra-efficient Solex heat exchanger is a unique design capable of cooling and heating a wide range of minerals and sands, including abrasive or high temperature products (up to 2000ºC).
APPLICATIONS
Zero Product LossSince air is not used to directly cool the product, the possibility
of product loss and carry-over in the discharge air is eliminated.
Zero EmissionsEmissions, dust, fines and odors are
eliminated because air is not used to
directly heat or cool the product.
Compact DesignThe vertical configuration gives this heat
exchanger a small installation footprint,
making it ideal for debottlenecking, revamps
or capacity increases.
Scan this QR code to view a video about Solex technology for sands and minerals.
Learn more at www.solexthermal.com
26
APPLICATIONS
DRYING & CONDITIONING OILSEEDS & GRAINS
The Ideal Dryer/Pre-Heater for Grains and Oilseeds The Solex Dryer/Conditioner offers significant advantages for oilseed and grain applications.
Pre-Heating Grains and OilseedsThe Solex pre-heater can operate on 100% recovered energy.
The indirect method of heating with plates makes it possible to use waste heat as the
source to indirectly heat the oilseeds or grains.
Drying Grains and OilseedsThe Solex dryer technology operates with efficiencies of greater than 90%, and can also
utilize waste heat as the heat source for drying, making it one of the most efficient drying
technologies available on the market.
Use Waste Heat for Added EfficiencyWaste heat can be used as a heat source to indirectly heat the product, further enhancing
the efficiency of this drying technology.
Scan this QR code to view a video about Solex technology for oilseeds.
27
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APPLICATIONS
DRYING & CONDITIONING OILSEEDS & GRAINS
Hot water or steam moves through the plate bank to heat the material while a small amount of cross-flow air removes moisture from the product.
Cross-Flow Air
Typical CanolaConditioning Process
APPLICATIONS
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Temperature Profile Between Plates
The off-set plate bank design achieves improved efficiency and uniform final product temperatures.
Product Inlet Temperature
Product Temperature Exiting First Plate Bank
Product Temperature Exiting Second Plate Bank
Product Discharge Temperature
1
2
3
4
100
90
80
70
60
50
40
30
20
10
0
Position Between Plates
Tem
per
atur
e (º
C)
1
2
25%0% 50% 75% 100%
3
4
LEVEL SENSOR
Product ExitingFirst Plate Bank
Product ExitingSecond Plate Bank
Product Discharge
Temperature Equalization in Discharge Cone
Product EnteringFirst Plate Bank
1
2
3
4
MASSFLOWCONE
Design Advantages
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The Solex heat exchanger uses welded heat transfer plates installed in a reinforced, fabricated casing with external fluid manifolds. This simple but advanced design offers many benefits for reliable operation and easy maintenance.
Exchanger Plates» Plate technology provides high efficiency heat
transfer surface.
» Individual plates can easily be isolated or
replaced.
» Plate connections are at the top and bottom of the
plates for true counter flow operation and the
ability to drain the plates.
» Plates are fully welded and finished to meet ASME
pressure vessel codes.
Flexible Hose Connections between Plate and Manifold» Flexible stainless steel hoses allow for
thermal expansion.
» Individual threaded connections allow for
plate removal.
» All connections are outside of the product stream.
ExchangerPlates
AccessDoor
Full Height Access Door» Design allows full access for inspection
cleaning or plate removal.
» Can be hinged or bolted depending on
the application.
» Additional doors can be fitted on the
manifold side.
Materials of Construction» 304L/316L stainless steel
» Carbon steel
» High grade alloys and duplex stainless steels
Design Advantages
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Design Advantages
The Solex indirect heat exchanger technology offers significant design advantages over traditional methods of heating and cooling bulk solids.
Technology Comparison
Energy Consumption
Installed Capital Cost
Maintenance
Product Degradation
Modular Construction(ease of expansion)
Compact Design(small installation footprint)
Cooling Air Required
Air Emissions
Solex Technology
Low
Low
Low
None
Yes
Yes
No
None
Fluid Bed Technology
High
High
Medium
High
No
No
Yes
Yes
Rotary Drum Technology
High
High
High
High
No
No
Yes
Yes
Scan this QR code to view a video about Solex technology.
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Discharge Options
The right discharge feeder is a critical component in the successful operation of your bulk solids heat exchanger. Solex conducts a feeder assessment and selects the best feeder for your application.
Vibrating FeederThe most universal feeder for a wide
range of products.
» The flow rate is controlled by varying
frequency
» Low headroom requirement
» No product degradation
» Good turndown capability
Mass Flow Cone with Rotary Valve» Suitable for a wide range of applications
» The mass flow cone creates uniform
product velocity.
» Flow rate is controlled by a VFD on the
rotary valve
» Provides air seal when feeding to
pneumatic conveying systems
» Typically lowest cost option
» Shear in valve may lead to product
degradation or high abrasion rates
» Requires more headroom for installation
Gate FeederBest for high capacities.
» Suitable for high duty applications
» Plane flow hopper incorporating
hinged gate to regulate flow
» High product capacity
» Low headroom requirement
» No product degradation
Plane Flow Hopper to Mass Flow Screw Feeder» For special applications and products
» Variable pitch screw feeder creates
uniform product velocity mass flow.
» Flow rate is controlled by VFD
drive on motor
» Collects products over large cross
section and discharges at a single point
» Low headroom requirement
» Good turn-down capacity
Solex ensures uniform product velocity over the heat exchange surface.
Design Advantages
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Lab Testing
The Solex lab testing facility provides its clients with extensive analysis of bulk solids materials to help evaluate physical and thermal properties of the bulk material, as well as determine material flow characteristics.
Lab Testing Consists of the Following Procedures:
Material Property AnalysisMaterial characteristics of the product sample are tested to
determine particle size distribution, bulk density, moisture
content and angle of repose.
Flowability TestingFlowability testing determines the optimum heat exchanger
plate spacing.
Mass FlowMass flow testing (shear cell testing) is carried out to determine
material flow characteristics to ensure that mass flow (uniform
velocity) is obtained in the equipment.
Thermal Property AnalysisThermal Conductivity testing is performed to provide the
measure of how well a material conducts heat. Solex measures
this in its lab using an advanced hot wire method.
1
2
3
4
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Solex performs advanced theoretical modeling to predict the thermal performance of the proposed equipment, and validates this modeling with pilot testing under true process conditions. The result is guaranteed thermal performance.
Theoretical ModelingThermaPro, the proprietary thermal
modeling software developed by
Solex, enables precise theoretical
modeling. ThermaPro accurately
predicts product temperature profiles
of the bulk solids materials at each point
through the heat exchanger providing
100% accurate predictions of final
product temperatures.
Pilot TestingPilot testing is performed with test units that closely
duplicate full size equipment. The on-site testing can
help analyze and validate the following:
» Equipment thermal performance.
» Product flowability under true process conditions.
» Heat exchanger performance over an extended
time period.
» Successful operation through typical plant cycles
including possible upsets.
» Successful operation with a specific product mix.
Pilot Testing
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What Makes Solex Technology So Efficient?
Traditional Cooling Technology Requires High Energy ConsumptionThe most common method of cooling bulk solids is direct air-cooling – like fluid bed
coolers or drum coolers. With this method, large horsepower fans take in
and blow ambient air across the product. The air is then discharged through
an air cleaning system to an exhaust stack. The inherent problem with using
air to directly cool bulk solids is the signif icant quantity of air required
and the expense involved in chil l ing, processing and cleaning that air.
Solex Cooling Technology Requires Minimal EnergyThe Solex technology cools bulk solids indirectly using water. With this technology,
cooling water is pumped through a vertical bank of hollow stainless steel plates while
the bulk solid passes between the plates at a rate sufficient to achieve the required
cooling. No air is required in the cooling process and the energy requirements are
minimized. The total energy consumption of the Solex heat exchanger can be 90%
less than air-cooling methods.
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Energy Savings Example
Compare the energy consumption of the Solex indirect cooling technology to a typical fluid bed cooler.
Example:
Energy Consumption:
Energy Savings:
More Details:
50 tph Facility
The energy consumption of the Solex cooler is 0.3 kWh/tonne vs 7 kWh/tonne for a typical fluid bed cooler.
The total electrical energy savings over five years is approximately USD $750,000.
For more details on the energy saving feature of the Solex technology, visit www.solexthermal.com.
What Makes Solex Technology So Efficient?
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About Solex
HistorySolex Thermal Science Inc. is a privately held company
specializing in the science of heating, cooling and drying
bulk solids. Founded under the name Bulkflow Technologies
in 1999, Solex Thermal Science has installed over 400 heat
exchangers in more than 43 countries world-wide.
ExperienceSolex engineers of fer world-leading heat exchange
expertise. Even NASA has consulted with Solex on
advanced heat exchange challenges. The heat–exchange
specialists at Solex have the knowledge and experience
to assist you in the implementation of advanced heat
exchange solutions.
Complete company and product details available at www.solexthermal.com
World-Wide Technical Services
Equipment Commissioning
» A qualified Solex technical services representative is on-site with your team to ensure the
Solex heat exchanger is installed and commissioned according to specifications.
Training
» On-site user training covers all aspects of equipment operation and maintenance.
» Detailed maintenance procedures facilitate long and reliable equipment operation.
Equipment Optimization
» The Solex customer support team can verify and validate equipment and process
performance in the field.
» Solex helps clients identify and document opportunities for improvement in
operational processes.
Spare Parts
» Solex provides both spare and replacement parts.
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World-Wide Customer Support
SALES & TECHNICAL SERVICES
About Solex
North America
403-254-3500
Asia
+49 4109 25 04 85
Europe & Middle East
+49 4109 25 04 85
Russia & FSU
+7 495 350 4792
Africa
+49 4109 25 04 85
Australia
+49 4109 25 04 85
Brazil
+55-11-4148-6700 ext 119
South America (Except Brazil)
412-564-9003
India
+044 2445 2011/ 0611
CORPORATE HEADQUARTERS
Canada
100, 3595 114 Ave SECalgary, Alberta, Canada T2Z 3X2
403-254-3500
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Installation Photos
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Worldwide Customer SupportInstallation Photos
www.solexthermal.com