Solex moving bed heat exchange technology is capable of handling any relatively free-flowing powder or crystalline bulk solids, making it the perfect candidate to cool biosolids such as:
For biosolids such as sludge granules and pellets, the material must be stabilized following the mechanical heating and drying process to prevent decomposition and possible smoldering or auto ignition. Solex accomplishes this stabilization by cooling the biosolids indirectly via conductivity, thus preventing fires or explosions in the subsequent handling and storage stages, as well as ensuring each particle is thermally stable through its core.
For other biosolids such as wood pellets, the cooling stage represents a critical step that requires the ability to accurately and evenly reduce temperatures and moisture levels while avoiding breakages and the production of additional fines.
Refer to our coolingpage to understand how the Solex heat exchange technology works to cool biosolids.
Maximize energy efficiency
Our heat exchange technology uses indirect heat transfer by conduction to reduce energy requirements by up to 90% (compared compared to direct cooling methods). Biosolids move slowly through the vertical heat exchanger while a cooling fluid moves counter-currently within the plates. This avoids the need to energetically mix the bed of material through large horsepower electric drives, big motors and other energy-consuming equipment.
Accurate & uniform temperature profile
Solex heat exchange technology ensures optimal product temperature at the outlet to the required parameters of 3-5°C above room temperature and moisture content between acceptable ranges. The even distribution of heat transfer to every pellet has multi-fold advantages, from mitigating spoiled product to creating a safe handling environment during storage and transport.
No product abrasion and degradation
Lower installation footprint
Low operating costs
Contact us today
We collaborate closely with you throughout the entire life cycle of the product.
Our approach includes being there every step of the way – from engineering and development to installation, training and ongoing support.
Improve your efficiency, lower costs and improve your end product with the world’s most efficient technology for biosolids. Learn more about how we can help.
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At Solex, we are more than just a heat exchanger manufacturer. We apply proven thermal science in innovative ways to find better, more efficient solutions to challenges both known and new.
Starting out as a division of Cominco Engineering Services (CESL) in 1989, the company was divided in 1999 to become Bulkflow Technologies. Today, we are known as Solex Thermal Science — and we have been pioneering technology in the science of heating, cooling and drying free flowing bulk solids ever since. Our patented industrial heat exchanger technology produces near-zero emissions, uses 90% less energy and produces a superior end product at a cost savings for our customers.
In 2019, we continued to solidify our expertise in bulk solids heat exchange by joining forces with Netherlands-based Mosman Stainless Steel, a worldwide leader in stainless steel. Made possible through a joint investment by the private equity firm Anders Invest B.V., our combined company provides customers with made-to-order solutions from an integrated producer of bulk solids heat exchange technology that has more than 150 years of combined experience.
We’re also now using that same technology to change the landscape of energy capture, recovery and storage. Announced in 2020, the newly created Solex Energy Science expands the boundaries of what’s possible in ways few could have predicted with innovative heat transfer solutions to applications involving high temperatures or using bulk solids as a heat transfer medium.
Our clients come to us with interesting challenges and rely on us to deliver trustworthy solutions for previously untested applications.
Rooted in science and powered by our people, we thrive on doing exactly that.
Your partner in innovation from concept to completion
We work with you at every stage of the process — undertaking complex thermal modelling to find optimal solutions, conducting pilot testing when required and ensuring your installation is both seamless and optimized. Learn more about the Solex process.
There when you need us – worldwide
Our international team of experts is ready to provide sales and technical support whenever and wherever you need. We’ve delivered customized solutions for clients in more than 50 countries.
Our operations continue to expand on a global scale.