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Preventive industrial fire protection for the cement industry

Maximum protection. Minimal disruption. Tailored to your process.

Home Industrial Fire Protection Industries Cement Industry

Cement doesn't burn. Refuse-Derived Fuels do!

Cement plants operate using high-temperature processes. The fire risk arises not from the cement itself, but from combustible substitute fuels such as RDF (Refuse-Derived Fuel) and other alternative fuels, which are stored, processed, conveyed, metered and fed into the so-called calciner.

These materials introduce sparks, hot particles, embers or foreign objects into the process and are therefore considered the most common causes of fire in preventive fire safety.

Added to this are dust, friction, technical faults and the high fire load of combustible materials within the process chain. It is therefore crucial to detect ignition sources at an early stage and extinguish them in a targeted manner – before they spread along the material flow.

This is where Fagus-GreCon comes in, because: WE EXTINGUISH BEFORE IT BURNS!

Reasons, risks and solutions for cement plants

The use of alternative fuels makes modern cement production processes more efficient – but also imposes additional requirements on industrial fire safety. Particular areas of concern include storage areas, shredders, conveyor systems, extraction systems, filters, silos, intermediate hoppers and the feed of material into the calciner.

Typical ignition sources include sparks and hot particles, foreign objects in machinery, friction, technical faults or spontaneous combustion in storage areas and intermediate hoppers. In combination with fine dust and combustible material, this can lead to critical situations.

Fagus-GreCon protects precisely these process areas: from detection in storage and conveying areas to automatic extinguishing at critical transfer points.

Cecil McBurney

Once again, we were impressed by the technology and the service. We now have a robust solution that protects our operations. The ability to monitor the system remotely has also helped us to stay connected from our control room and monitor events in real time.Group Operations Manager at RiverRidge
Calciner & handling system
Critical transition to the calciner: this is where combustible material comes into contact with the high-temperature process.

GreCons preventive industrial fire protection along the fuel path

Whether it’s storage, dosing or feeding into the calciner: the risk follows the path of the alternative fuel through the plant.

Spontaneous combustion can occur during storage. During processing and conveyance, sparks, hot particles or pockets of embers can be carried along. In filters, silos and extraction systems, dust adds an additional risk factor. The area in front of the calciner is particularly critical, as this is where combustible material is introduced into a high-temperature process.

It is crucial not to wait until a fire breaks out to tackle risks, but to identify them during the ongoing process and stop them automatically.

The solution: Maximum protection. Minimal disruption.

In cement plants, a single spark or an undetected ember can be enough to endanger critical process areas. That is why fire risks associated with the use of alternative fuels must be systematically assessed – from storage right through to feeding into the calciner.

Fagus-GreCon provides the technology and system expertise for this – tailored to material flow, plant layout and defined risk zones.

The solution: Maximum protection. Minimal disruption.

In cement plants, a single spark or an undetected source of embers can be enough to endanger critical process areas. That is why fire risks associated with the use of alternative fuels must be systematically assessed – from storage right through to feeding into the calciner.

This is precisely where GreCon PROTECTOR comes in: as a system solution, it combines detection, processing and response along defined risk zones – tailored to material flow, plant layout and transfer points.

Risk assessment for your fuel supply chain

Our fire safety experts will show you which areas are critical in terms of storage, conveyance, dosing and feeding points – and how a preventative safety plan can be integrated into your facility.

Get in touch now!

GreCon PROTECTOR CEMENT: A system solution for the entire material flow

To ensure this is achieved, our protection concept combines the best components for detection (the SCOUTS), processing (the MISSION CONTROL and RANGER) and response (the HUNTER) into a single system solution. Together, they form an intelligent protection system that not only identifies hazards but also thinks proactively. The result is a modular, intelligent and decentralised networked fire protection system that can be flexibly adapted to highly specialised industrial processes.

How PROTECTOR works within the system
 

  • Detection – SCOUT

SCOUT provides detection solutions for relevant hazards within the detection area – from sparks and hot particles to smouldering pockets, open flames and critical overheating.
 

  • Processing & Control – MISSION CONTROL + RANGER

MISSION CONTROL collects, analyses and visualises safety-relevant data and controls the system architecture. In conjunction with decentralised units such as RANGER, it forms the command centre of an intelligent protection system.

RANGER takes charge of operations directly on site: it processes signals close to the protected object in milliseconds and reports actions back to MISSION CONTROL in real time.
 

  • Reacting – HUNTER

HUNTER stands for the automated extinguishing of sparks and ignition sources – in milliseconds and using a fine water mist. In addition, the system monitors relevant parameters (e.g. flow pressure, temperature curves, condition of nozzles and valves) and detects deviations at an early stage.

One system, clear advantages

  • Flexibly expandable thanks to decentralised system architecture
  • Clear planning, transparent costs thanks to structured installation planning
  • Reduced maintenance requirements through central diagnostic functions and updates
GreCon PROTECTOR is an intelligent, next-generation industrial fire protection concept.GreCon MISSION CONTROL GreCon SCOUT in front of black screenGreCon RANGERGreCon HUNTER

Frequently asked questions about risks

Fire safety strategies for alternative fuels in cement plants? Industrial fire safety starts where the risks begin!

When using RDF and alternative fuels, risks arise primarily in areas where combustible materials are stored, processed or transported. These answers address frequently asked questions from manufacturers.

Why does a cement plant need fire protection if cement doesn’t burn?
Because the fire risk does not come from the cement itself, but from combustible alternative fuels (e.g. RDF/AF), which are stored, processed, conveyed and fed into the high-temperature process.

What are the typical risks along the fuel path?
Particularly where combustible material is stored, processed or transported: spontaneous combustion, sparks/hot particles, foreign objects, friction/defects, dust in filters/silos/extraction systems, and backfire towards the feeding point.

Why are transfer points and conveying routes so critical?
Because ignition sources (sparks, hot particles, embers) can spread along the material flow – a local incident can quickly become a risk for several process areas.

What does ‘backfire’ in a calciner mean?
It means that hot air or flames are being blown back from the calciner towards the feeding point, putting upstream areas at risk.

What measures can help prevent backfire towards the feeding point?
Early detection (e.g. of spontaneous combustion in the intermediate silo) and targeted monitoring of fuel feeding – e.g. via flame detectors or thermal imaging – are crucial, with the aim of keeping the heat within the calciner.

Which feeding points are particularly relevant in a cement plant?
Typical feeding points include, for example, chain conveyors, screw conveyors, double-pendulum valves, rotary valves, pipe conveyors and bucket elevators.

How is the storage of RDF/AF secured?
Storage areas are particularly critical due to spontaneous combustion and temperature changes that are difficult to detect. Depending on the material and layout, options include, for example, thermal imaging surveillance as well as water- or foam-based extinguishing systems.

Why is feeding and dosing the “last viable detection point”?
Because the material is then transported towards the calciner. Detection before the pipe conveyor or bucket elevator may be the last point at which risks can still be specifically mitigated.

What risks arise during shredding and processing?
Typical risks include overload, friction, foreign objects, flying sparks, hot particles or bearing damage. Transfer points, conveyor belts and downstream process areas are particularly critical.

What is special about extraction, filtration and silos?
Here, dust acts as an additional risk factor. Sparks can be detected, for example, at the inlet of the dust separator; in the event of filter incidents, detection on the clean air side can trigger an alarm. During shutdowns, temperature sensors in the hopper or raw gas area can indicate critical developments.

What is the principle of preventive fire protection in this context?
Risks are identified across the relevant zones, assessed and contained through appropriate responses/fire-extinguishing measures, ensuring that they do not spread via the material flow – from storage through conveyance to feeding into the calciner.

We look forward to hearing from you.

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