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Ash Boiler Feed Reliability in Bulk Material Handling

Reliable bulk material handling is key to the performance of boilers and power plants. When fuel feeding or ash extraction fails, problems arise fast. You get unstable combustion, forced shutdowns, and high maintenance costs. By understanding the bulk handling challenges, engineers can design more reliable systems.

Why reliability matters?

Boiler feed and ash handling systems work in tough material handling environments.

  • High temperatures put stress on conveyors, hoppers, and valves.
  • Abrasive ash and fuel particles cause accelerated wear.
  • Moisture and condensation create sticking, corrosion, or blockages.
  • Variable bulk properties (size, density, moisture) make flow unpredictable.

In bulk handling, equipment must handle constant stress, changing materials, and chemical exposure. It should do this without losing flow consistency.

Typical Reliability Challenges

From a bulk material handling point of view, the main reliability risks are:

  • Blockages and bridging Fine ash or damp fuel can compact, stopping flow in silos, feeders, or chutes.
  • Air leakage Poor sealing at feeders and valves can disturb pressure balances in pneumatic systems.
  • Wear and erosion Continuous contact with hot, abrasive ash damages conveyors, screws, and rotary valves.
  • Thermal expansion Materials expand and contract, stressing seals and joints.

These issues stress that bulk handling for boilers goes beyond just moving material. It’s crucial for controlling how that material acts under extreme conditions.

Design Strategies for Reliable Operation

Bulk material handling technology offers proven solutions:

  • Robust feeding systems that ensure stable material flow into boilers despite bulk variability.
  • Dry ash handling cuts water use, reduces corrosion, and boosts ash utilization downstream.
  • Sealed transfer points such as double dump valves or rotary feeders to prevent gas and dust leakage.
  • Wear protection through hardfacing, ceramic linings, or modular replaceable parts.
  • Monitoring and maintenance routines that detect wear or blockages before they become failures.

Moving Forward

Reliable ash and boiler feed handling comes from using the right bulk material principles and custom system design. Focusing on flow behavior, sealing, wear resistance, and maintenance helps operators keep performance and availability high over time.

At Laitex, we share this knowledge because we believe that strong material handling principles are the foundation of reliable energy production. The reliability of ash boiler feed systems in bulk material handling is a critical factor in achieving efficient and sustainable industrial operations. By focusing on system reliability, businesses can enhance boiler performance, reduce operational costs, and contribute to a more sustainable future.

Flow Must Go On!

Let me explain Pneumatic Conveyor Cover

Laitex Let Me Explain: Pneumatic Conveyors

At Laitex, we know that moving fine bulk materials like fly ash, cement, or limestone isn’t always easy. Traditional mechanical methods can be messy, unreliable, and maintenance-heavy.

Our latest Let Me Explain video stars Teemu Lampila, Head of Pneumatic Conveying Business Line. He introduces one of our most flexible solutions: Laitex Pneumatic Conveyors.

Watch the video here:

Why Pneumatic Conveyors?

Our systems move dry bulk materials through pipelines with controlled airflow. We use either lean-phase or dense-phase methods. This ensures transport is reliable, safe, and dust-free.

Their fully enclosed design reduces spillage and dust emissions. They also stay efficient in tough environments.

Key Benefits

  • Dust-tight and safe – Clean operation with minimal emissions
  • Flexible routing – Handles long distances, bends, and vertical runs
  • Reliable ash & boiler feed – Consistent performance in power and heat plants
  • Low maintenance, long service life – Reduced downtime and operating costs
  • Wide material compatibility – From sand and limestone to fly ash, cement, sulfur, activated carbon, and more

With Laitex, you get a complete system. We design, supply, and integrate a range of systems. This includes conveyors, feeders, and dust control solutions. Our goal is to ensure smooth, clean, and reliable handling of bulk materials.

Ready to see how pneumatic conveyors can improve your process? Let’s talk.

Flow Must Go On!

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Laitex Secures Major Biomass Material Handling Order for Project in Spain

Laitex Oy, a Finnish family-owned company and global expert in sustainable bulk material handling, has secured a strategically significant order to supply the biomass treatment and handling systems for a new biomass-fired Combined Heat and Power (CHP) plant in Torrelavega, Spain*. The plant is developed by ENSO, with EAG (Empresarios Agrupados – GHESA) as the EPC contractor, and will provide renewable energy to Solvay’s chemical complex.

This order is a key delivery for Laitex in the energy sector. It boosts Laitex’s presence in Southern Europe and shows the company’s importance to large-scale EPC contractors. This delivery highlights Laitex’s skill in combining turnkey project expertise, custom solutions, and life-cycle support in a major green transition project in Europe.

“This biomass project marks a milestone for Laitex in the Iberian market. It shows our capability to deliver complex, large systems. These systems support global decarbonization goals. They also ensure a steady fuel flow for tough industrial processes.”, says Lasse Kurronen, CEO, Laitex Oy

Laitex will deliver the complete biomass treatment and handling system, ensuring safe, reliable, and continuous fuel supply to the boiler. The scope includes:

  • Biomass receiving system: Biomass receiving system for six trucks
  • Screening system: Ensuring fuel quality by removing oversize and fine particles, as well as metals
  • Biomass storage: Two (2) 6000m3 biomass silos with screw reclaimers
  • Emergency side feeding hoppers: Securing uninterrupted operation
  • Fuel feeding system: High-performance conveyors and feeding equipment to deliver biomass to the grate boiler

This full-scope delivery strengthens Laitex’s wide expertise in handling diverse fuel types and ensuring the seamless flow of material in demanding energy industry applications.

“This project is a significant achievement for Laitex. Our material handling systems will ensure reliable and efficient fuel supply to the biomass boiler, supporting our customer’s transition to cleaner energy.”, outlines Laitex’s Head of Project Sales, Sami Koskela

Flow Must Go On!

*About the Project:

The CHP plant’s grate boiler will operate with a capacity of 360,000 tonnes of biomass per year, sourced sustainably from forestry residues and woody byproducts. By replacing fossil fuels with renewable energy, the project will reduce greenhouse gas emissions by more than 400,000 tonnes of CO₂ annually.

Let me explain covers

Flow Must Go Green. Introducing our Environmental Progress Report.

In early 2023, we decided to set the bar higher. Late that same year, we had our environmental system ISO 14001 certified. With the new guidelines and obligations, we have been working hard to mitigate our environmental impact in the year 2024 and years to come.
As supported by our strategy, we are ever more leaning towards projects involving renewable energy and the circular economy. We have strengthened our service department to ensure longer life spans for our products installed all around the world.
In the beginning of 2024, we changed the source of electricity to carbon-neutral and set a goal to grow the recycling rate by starting to recycle plastics at the workshops. We consider the source of fresh water highly valuable. Therefore, it was only natural to find ways to cut water consumption at the shops by changing old sanitary equipment to less wasteful models.
Our first emission inventory was made in 2024 for the previous year 2023. In late 2024, we wanted to take the next step and show more environmental leadership. We joined the Science Based Targets initiative and have set the target of cutting GHG scope 1 and 2 emissions by 42% by the year 2030. The year 2023 is our base year. The said commitment will keep challenging us for the following years, however, for us, it is not a burden, but a necessity.

Watch the Let Me Explain video to learn more.

Download the report.

Flow Must Go On!

Meet Laitex At Pollutec 2025

Meet Laitex at Pollutec 2025

Laitex is proud to announce that we will be participating in Pollutec 2025, the leading international trade show for environmental and energy solutions. The event takes place on 7–10 October 2025 at Eurexpo Lyon, France. You can find us in Hall 4, Stand K134.

Why Visit Pollutec 2025?

Pollutec is the premier exhibition for professionals working in environmental technologies, circular economy, waste management, water treatment, energy efficiency, and sustainable industry. With thousands of exhibitors and visitors from around the world, the event offers a unique opportunity to:

  • Discover innovative environmental solutions
  • Meet experts in sustainable material handling
  • Exchange ideas with global industry leaders
  • Learn about the latest trends in circular economy and resource recovery

What Laitex Brings to Pollutec

At Laitex, we specialize in tailored and full-scope material handling solutions that serve industries transitioning toward sustainability and cleaner processes. From waste-to-energy and bioenergy plants to process industry applications, our equipment ensures safe, efficient, and environmentally friendly material flow.

At Pollutec 2025, we will showcase our expertise in:

  • Waste handling and conveying systems
  • Fuel reception and storage solutions
  • Ash and residue handling technologies
  • Customized automation and process integration

Our solutions are designed not only to improve operational efficiency but also to contribute directly to reducing environmental impact.

Join Us in Lyon

We warmly invite you to visit our team at Pollutec 2025 to discuss your challenges and explore how Laitex can help you build a more sustainable future.

Let’s meet at Pollutec and shape the future of environmental solutions together!

Flow Must Go On!

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A milestone for sustainable packaging in Europe and a proud moment for Laitex

On 18 August 2025, our valued customer Stora Enso inaugurated Europe’s largest and most advanced consumer packaging board production line at the Oulu mill, with Finland’s Prime Minister and Stora Enso’s leadership present. We are proud that our CEO, Lasse Kurronen, also joined the celebration on this historic day.

Picture credit: Stora Enso

Congratulations to Stora Enso on this milestone!

Laitex played a key role in this investment project by delivering a full-scope fuel handling system, from truck receiving and automatic sampling to conveyors, a biomass stacker, reclaimer, and a brand-new truck receiving building with advanced dust removal. Our team also handled the installation, commissioning, instrumentation, and piping, ensuring seamless and sustainable operations.

Learn more about the project here.

With these solutions, Stora Enso can efficiently handle higher volumes of biomass, improving both capacity and sustainability at the Oulu mill.

“This project showcases Laitex’s expertise in full-scope bulk material handling solutions. By providing high-performance and sustainable bulk material handling equipment, we are helping our partners meet their environmental and operational goals,” says Lasse Kurronen, CEO of Laitex.

Flow Must Go On!

Innovative Bulk Material Handling Technologies Today_Laitex

Innovative Bulk Material Handling Technologies Today

Today, efficient and sustainable bulk material handling is more important than ever. The industrial landscape is changing quickly. At Laitex, we focus on custom solutions. Moreover, we boost operational efficiency, promote environmental care, and ensure safety in many industries.

Why is bulk material handling innovation crucial?

Industries like energy, mining, and manufacturing need to boost efficiency and sustainability. Innovative bulk material handling technologies address these challenges by:

  • Reducing operational costs through optimized processes
  • Enhancing safety with advanced equipment designs
  • Minimizing environmental impact via dust control and energy-efficient systems
  • Ensuring compliance with stringent environmental regulations

Laitex is dedicated to innovation. This helps our clients meet changing needs and stay ahead.

Laitex’s Tailored Solutions for Diverse Industries

We specialize in many industries. While we offer tailored bulk material handling solutions:

Power & Heat

We provide complete systems for fuel receiving, feeding, and ash handling. As well as this also ensures efficient energy production and effective waste management.

Metals, Minerals & Mining

Laitex creates strong equipment for concentrator plants, tailings management, and metals refining. This helps materials flow easily in tough conditions.

Circular Economy & Environment

Our solutions help activated carbon plants, biorefineries, and wastewater treatment facilities. They support sustainable practices, boost resource efficiency, and encourage environmental care.

Pulp & Paper

We offer specialized equipment for wood processing, cooking, recovery boilers, and lime kilns. This boosts productivity and supports sustainability in pulp and paper operations.

Laitex’s Product Portfolio

Laitex’s product portfolio includes advanced technologies designed to meet specific material handling needs like:

Belt Conveyors

Our heavy-duty belt conveyors can be customized for different capacities and materials. They provide energy-efficient options for transporting materials over long distances.

Pneumatic Conveyors

Our pneumatic conveyors are perfect for moving fine and hazardous materials. They provide an enclosed and dust-free way to transport materials. Additionally, they are energy efficient.

Crushers

Our crushers are made for reducing bulk materials, like biomass and limestone. They are built for tough processing conditions, ensuring the best performance.

Storage and Silo Dischargers

We provide different discharger solutions. These include chain, screw, and stoker dischargers. These systems help to unload bulk materials from storage units quickly and reliably.

Screw Conveyors

Our screw conveyors provide versatile horizontal, inclined, or vertical transport for a wide range of dry bulk materials. They are ideal for continuous and controlled material flow, and can be tailored for abrasive, sticky, or granular substances.

Drag Chain Conveyors

Designed for enclosed and low-speed conveying of bulk materials, drag chain conveyors are excellent for ash, cement, biomass, and similar applications. Their sturdy design ensures smooth movement of material while minimizing wear and dust emissions.

Bucket Elevators

Laitex bucket elevators are optimized for vertical transport of powdered or granular materials. Their enclosed design prevents spillage and dust generation, ensuring clean and efficient operation.

Feeders and Dosing Equipment

We provide precision feeders and dosing systems to ensure accurate and continuous flow of materials into subsequent processing equipment. These systems are vital for maintaining process control and efficiency.

Airlocks and Rotary Valves

Our rotary airlocks serve as key components for feeding materials into pneumatic systems or controlling flow from silos. They are designed for durability, sealing performance, and minimal air leakage.

Screening and Separation Units

Laitex also offers screening and separation systems for pre-treatment and classification of materials before further processing. By improving material purity and process consistency, these units ensure better quality control and optimized system performance.

Laitex’s product portfolio continues to grow, driven by our commitment to innovation, customer-specific engineering, and sustainability.

Frequently Asked Questions

What makes Laitex’s solutions stand out in bulk material handling?

We focus on customization, quality, and sustainability. This means each solution fits our clients’ unique needs. It also boosts efficiency and helps with environmental compliance.

Can Laitex’s equipment handle hazardous materials?

Yes, our equipment safely handles hazardous and sensitive materials. It includes enclosed systems and meets ATEX directives.

How does Laitex support clients post-installation?

We provide complete lifecycle services. This includes spare parts, field services, refurbishments, modernization, and advisory support. In this way, we ensure your operations remain reliable for the long term.

Partner with Laitex for advanced material handling solutions.

At Laitex, we focus on innovative, sustainable bulk material handling. Our goal is to boost efficiency while being environmentally responsible. Our team is ready to collaborate with you to develop solutions tailored to your specific operational needs.

LAITEX AT EXPOBIOMASA 2025

Laitex Team at Expobiomasa 2025 in Spain and Interview of Timo Kupsanen at the Expobiomasa

The Laitex team was proud to participate in Expobiomasa 2025 in Spain, where we showcased our latest solutions for sustainable bulk material handling. During the event, Timo Kupsanen, VP, Sales at Laitex, shared his insights in an exclusive interview. In the interview, he highlighted key industry trends, Laitex’s full-scope solutions, and our commitment to driving the future of bioenergy.

Showcasing Innovation in Sustainable Material Handling

At our stand, visitors explored how Laitex’s full-scope material handling systems, including conveyors, separation units, and dust control solutions, support a broad range of bioenergy applications. Moreover, our tailored systems are designed to handle various types of biomass fuels, thereby ensuring a safe, efficient, and clean fuel supply for thermal power plants, district heating networks, and industrial boilers.

Our team engaged in insightful discussions with municipal representatives, EPC contractors, and industrial players across Spain and Europe. The strong interest we received reinforced the growing demand for reliable, scalable biomass handling solutions in the context of energy transition and decarbonization.

Interview with Timo Kupsanen: Insights on Bioenergy Trends and Laitex’s Role

A highlight of the event was an exclusive interview with Timo Kupsanen, Vice President, Sales at Laitex Oy. During the interview, Timo shared his perspective on key trends shaping the biomass sector, including increasing fuel diversity, the push for decarbonization, and the need for integrated, turnkey solutions.

Furthermore, he emphasized how Laitex’s engineering capabilities and decades of experience enable us to deliver customized bulk material systems that meet local operational challenges. This is particularly true in the Spanish market, where district heating networks, energy-transitioning industries, and EPC firms face unique infrastructure and regulatory requirements.

Watch the interview to learn more.

Video credit: Avebiom Asociacion Biomasa

We thank everyone who visited our booth at Expobiomasa 2025 and connected with us during the event. We’re excited to continue these conversations and work together on building the future of renewable energy.

FLOW MUST GO ON!

Summer trainees 2025_Laitex

Welcoming Our Summer Trainees to Laitex

This summer, we’re thrilled to open our doors to a talented and enthusiastic group of summer trainees here at Laitex. To all of you just stepping into our world: welcome to the team!

You bring with you fresh perspectives, a hunger to learn, and the kind of drive that energizes everything we do. As we say here at Laitex, Flow Must Go On and with your arrival, our flow becomes even stronger, more dynamic, and full of possibility.

A Place to Learn and Grow

At Laitex, we believe that the future is built today. And there’s no better way to build that future than by investing in emerging professionals. This isn’t just a summer job, it’s a chance for you to explore your passions, understand our industry from the inside out, and gain valuable skills that will serve you for years to come.

Fueling Our Mission Together

Our slogan, “Flow Must Go On,” is more than just words. It’s a philosophy that guides every project, every team, and every partnership. It speaks to our commitment to continuous improvement, reliable operations in bulk material handling, and forward momentum.

With our summer trainees on board, that flow continues with renewed strength. Our energy, your curiosity (most of our summer trainees are from LUT – Land of the curious), and your creativity are exactly what we need as we strive to deliver even greater solutions to our clients around the world.

To Our Trainees: We’re Glad You’re Here

From your very first day, you are part of the Laitex Team. We hope you’ll make the most of every moment, connect with people, dive into new challenges, and discover what excites you.

Thank you for choosing to spend your summer with us. We’re proud to be part of your journey and can’t wait to see what you’ll achieve.

Let the learning begin, and may the Flow Must Go On!

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