The application of steel construction in waste incinerator building – where does steel have the most significance?

Steel structures in the construction of waste incineration plants must be designed with the demanding technological process in mind, not just for load transfer. They are responsible for safely supporting boilers, filters, waste transport systems, technological channels and service platforms, which operate in harsh conditions for many years.

In this type of facility, steel is exposed to high temperatures, dynamic loads, aggressive chemical agents, and intense operation. Therefore The construction must take into account not only the load-bearing parameters but also technological, service, environmental requirements, and the safety of plant operation..

In this article, we explain where steel structures are used in waste incineration plants, what requirements they must meet, and why the proper design and construction of these structures are crucial for the reliability of the entire waste-to-energy plant.

Use of steel structures in refuse-incineration plants – summary

• Steel constructions in waste incineration plants are of greatest importance for supporting boilers, filters, flue gas ducts, conveyors and technological installations.
• Steel is also used for the construction of jetties, platforms, stairways, service platforms, flyovers, and installation routes.
• The constructions must be resistant to heavy loads, vibrations, high temperatures, corrosion, and intensive operation.
• In such demanding industrial projects, compliance with standards, appropriate execution class, full quality documentation, and the selection of an experienced steel structures manufacturer. 

Dlaczego spalarnia śmieci wymaga konstrukcji o podwyższonych wymaganiach?

A waste incineration plant, also known as a thermal waste treatment facility, is a highly complex industrial installation. The steel structure here not only serves a load-bearing function. It must also work in conjunction with technological equipment, transport systems, flue gas treatment installations, and service elements.

That's why in such investments, it's important Contractor experiencewho can view a steel structure not as an individual element, but as part of a complete technological process. ON-TIME Solutions supports investors in implementation of steel structures industrial, taking into account the unique requirements of this type of facility.

High temperatures and difficult working conditions

In incinerators, steel structures can operate in close proximity to high-temperature generating equipment, dust, moisture, and aggressive chemical compounds. Therefore, appropriate materials, corrosion protection, and adaptation of the structure to real operating conditions are important.

ON-TIME Solutions offers comprehensive anti-corrosion protection for steel structures, selected according to the working environment and project requirements.

Depending on the application, these may include:

• hot-dip galvanised according to PN-EN ISO 1461 
• Industrial painting 
• fire-resistant coatings 
• DUPLEX system combining galvanising with painting 
• and galvanisation of selected mounting details.

The burdens of technological devices

Support structures in waste incineration plants must bear the weight of boilers, filters, flue gas ducts, conveyors, and other technological equipment. This is often accompanied by vibrations, dynamic loads, and requirements related to assembly and maintenance.

ON-Time Solutions carries out medium and heavy steel constructions, therefore it can be responsible for elements requiring high load-bearing capacity., precision of workmanship and compatibility with technological devices. This is particularly important for objects where the structure must cooperate with process installations and maintain stability over many years of operation. 

Operational safety and service access

The incineration plant requires constant technical maintenance. Therefore, the design should include walkways, stairs, landing stages, railings, and service platforms. This affects not only ease of work but, above all, people's safety and the continuity of the plant's operation.

In practice, this means that technical access routes, working spaces, and service elements need to be carefully planned. ON-TIME Solutions can prepare constructions tailored to the actual use of the installation.so as to facilitate subsequent inspections, maintenance, and servicing. 

Where are steel structures used in waste-to-energy plants?

Steel structures are one of the fundamental elements of every modern waste incineration plant. They are responsible not only for the load-bearing capacity of the building but, above all, for the safe operation of the technological installations. They must work together with process equipment, ensure access for servicing, and enable efficient operation of the facility for many years.

Support structures for boilers, filters, and technological installations

Steel structures play the most important role as supporting elements for technological equipment. In an incinerator, these can include, among others:

• Heat recovery boilers
• exhaust gas treatment systems
• bag filters
• technological reactors
• Industrial fans
• Material handling and storage systems.

These elements often reach very large masses and generate additional loads during operation. The structure must therefore take into account not only the weight of the equipment, but also vibrations, thermal expansion, and the requirements associated with installation and subsequent maintenance.

At W ON-Time Solutions, these elements can be realised from the technical documentation stage, through prefabrication, right up to delivery and assembly. This allows the investor to gain greater control over the construction's compliance with the design, schedule, and technological equipment requirements. 

Bridges, platforms, stairs, and service platforms

Incinerator installations require regular inspections, maintenance, and servicing. Therefore, a large part of the structure consists of elements ensuring safe access to equipment.

Most often, these are:

• technology platforms,
• work platforms
• service stairs
• Service platforms
• Balustrades and safety systems.

Their appropriate design has a direct impact on the safety of operation and the ability to efficiently carry out maintenance work without the need to shut down the entire installation.

Staging, service ducts and installation routes

The incinerator has dozens of transfer installations responsible for transporting media, exhaust gases, energy, and control signals. Steel structures are used to build technological gantries and installation routes, which organise the layout of pipelines, ducts, and conduits.

This solution allows:

• to organise technological infrastructure
• to facilitate servicing and upgrades,
• to limit the risk of collision between installations,
• Improve the operational safety of the facility.

In large waste incineration plants, the viaducts can be tens or even hundreds of metres long.

For this type of element, coordination of the structure with other trades is importanttechnological, electrical, ventilation, automation and internal transport. ON-TIME Solutions can support the investor in this process.preparing structures adapted to the installation route and limiting the risk of collisions during the assembly stage. 

Technology halls, roofing and ancillary facilities

Steel structures are also used for the construction of technological halls and facilities supporting the operation of incinerators. The large spans make it possible to create spaces that allow for the assembly of large-sized equipment without the need for numerous internal supports.

This group includes, among others:

• technology halls
• buildings for the operation of installations
• supplies warehouses,
• external equipment canopies
• technical and administrative objects.

A significant advantage of steel structures is their adaptability to individual process requirements and the subsequent expansion of the facility along with changes in the installation.

What are the requirements for steel structures in a waste incineration plant?

Waste incineration plants are among the most demanding industrial facilities. Steel structures operate there in an environment exposed to high temperatures, aggressive chemical compounds, heavy loads, and continuous operation. 

That's why it's already necessary at the design stage to take into account significantly more stringent requirements than in the case of standard industrial or warehouse halls.

Corrosion and aggressive environment resistance

The waste incineration process generates dust, moisture, condensates, and chemical compounds that can accelerate the corrosion of steel elements. Structures located near flue gas treatment plants, material transport systems, or technological equipment are particularly vulnerable.

Therefore, the structures used in incineration plants require appropriately selected anti-corrosion safeguards, such as:

• industrial painting systems
• galvanising of selected elements
• appropriate choice of steel grade,
• Regular checks of the condition of protective coatings.

In practice, environmental conditions in which the structure will operate should be determined at the design stage to ensure its long-term durability and reduce operating costs.

ON-Time Solutions considers anti-corrosion protection as part of the steel structure fabrication process. This allows the selection of protection to be linked to the working conditions of the object, the project requirements, and the predicted operation of the structure. 

Load capacity, stiffness and vibration resistance

Incinerators are equipped with heavy technological equipment, such as boilers, bag filters, fans, conveyors, and flue gas treatment systems. The structure must safely support not only their weight but also the dynamic loads generated during operation.

Designers take into account, among other things:

• loads from technological devices
• vibrations and tremors generated by working machinery,
• wind and snow loads,
• The impact of temperature on structural performance.
• Safety during installation and operation.

For industrial facilities with a high degree of responsibility, adequate structural rigidity is particularly important, which helps to limit undesirable deformations and vibrations affecting the operation of equipment.

Compliance with PN-EN standards, Eurocodes, and EN 1090

Steel structures for waste incinerators must be designed and constructed in accordance with current European standards. The basis for this is provided by the Eurocodes, in particular PN-EN 1993 (Eurocode 3), which specify the rules for designing steel structures in terms of load-bearing capacity, durability, and safety in use.

Equally important is the EN 1090 standard, which regulates the execution of steel structures and introduces execution classes (EXC). For many industrial and technological investments, such as waste incinerators, it is often used Class EXC3demanding:

• more stringent quality control
• extended production documentation,
• qualified welding procedures,
• non-destructive testing of welds (NDT)
• higher level of oversight over the execution process.

This is why, when carrying out construction for incineration plants, so The choice of contractor is of great importance. possessing the relevant certificates, industrial experience and the ability to work according to EXC3 class requirements. This gives the investor greater confidence that the structure will be safe, durable and compliant with the project's requirements throughout the installation's operational life.

ON-TIME Solutions holds EN 1090 certification in class EXC3 and ISO 3834-2, which allows for the implementation of more demanding industrial constructions in accordance with European quality standards.Additional support is provided by welding supervision carried out by staff with IWE qualifications, which is particularly important for structures requiring high-quality welds and full acceptance documentation. 

Dlaczego prefabrykacja jest ważna przy budowie spalarni?

The construction of a waste incineration plant is a complex process involving dozens of contractors responsible for the structure, technology, electrical installations, automation, or flue gas treatment systems. In such projects, not only the quality of the steel structure's fabrication is crucial, but also Timeliness and the ability for efficient coordination of work.

That's why most structures for incinerators are created through prefabrication. This means that the components are manufactured and inspected at the production facility, and then delivered to the construction site ready for assembly.

ON-Time Solutions carries out steel constructions using a model that includes prefabrication, logistics, and assemblywhich facilitates the maintenance of work order and the adjustment of deliveries to the investment schedule.

Shorter on-site assembly

Prefabrication allows for a significant reduction in the time spent on-site. Ready-made structural elements are delivered according to schedule and assembled in the planned sequence.

For an investor, this means:

• faster completion of the entire project,
• lower risk of delays,
• limitation of work at height
• easier coordination with the delivery of technological equipment.

This is particularly important in incineration plants, where the construction schedule is often closely linked to the deadlines for the assembly of boilers, flue gas treatment systems and other process equipment.

Better quality control of components

Producing elements under factory conditions allows for a higher level of quality control than carrying out most of the work directly on site.

Prefabrication enables:

• more precise dimensional control
• continuous supervision of the welding process
• conducting qualitative research
• better documentation of implementation,
• easier fulfillment of EN 1090 and ISO 3834 requirements.

This is particularly important for incinerator construction, as even minor deviations can make it difficult to assemble the technological equipment and installations later on.

W ON-Time Solutions control The quality encompasses both the prefabrication stage and the welding processes. The company has the facilities to carry out the construction in accordance with the requirements of EN 1090 and ISO 3834-2, and depending on the project, non-destructive testing of welds can be carried outsuch as VT, MT, PT, UT or RT. 

Reduced risk of collision with utility installations

The incineration plant has hundreds of metres of pipelines, service ducts, cable trays and control systems.

By utilising 3D models and designing for prefabrication, many potential clashes can be detected before production even begins. This allows for:

• to limit the number of changes on construction sites,
• to avoid costly modifications,
• improve the assembly of devices
• It is better to coordinate the actions of all industries involved in the investment.

In practice, well-planned prefabrication translates not only to faster construction assembly but also to more efficient completion of the entire incinerator and a reduced risk of problems during plant commissioning.

ON-Time Solutions also works on 3D models and technical documentation, which helps to match the structure to the actual layout of the installation. This is particularly important in projects where the steel structure must work with technology, automation, electrical installations, HVAC, and transport systems. 

Steel structures for industrial installations from ON-Time Solutions

Are you planning to build a waste incinerator or another industrial facility? Contact ON-Time Solutions and consult your project with a team that combines design, prefabrication, anti-corrosion protection, logistics, and assembly of steel structures.

Check out our offer regarding incinerator construction.

FAQ – Frequently asked questions about the use of steel structures in waste incineration plant construction