Steam boilers, which meet the energy needs of industrial facilities, have different types and structure options. One of these options, the preheated steam boiler, stands out with its high efficiency and fuel-saving structure. It is an ideal solution especially for businesses that need high capacity steam.
What is a Pre-Hob Steam Boiler?
Pre-hearth steam boiler is a system in which the fuel is burned in a front section separate from the boiler body and the gases formed at high temperature in this section pass through the boiler and convert water into steam. Thanks to this structure, combustion takes place in a more controlled and efficient manner.
The so-called “front hearth” is a special section, usually coated with refractory material, which directly affects the combustion efficiency of the boiler.
How does it work?
The working principle in prehearth systems works as follows:
- Fuel Supply: Solid, liquid or gaseous fuels are fed to the prehearth section.
- Combustion: Fuel is burned at high temperature in the prehearth. Since the combustion is controlled and homogeneous, more energy is obtained with less fuel.
- Heat Transfer: As the hot gases pass through the steam boiler pipes, they heat the water in the boiler and turn it into steam.
- Steam Production: The steam obtained is directed to the systems according to the needs of the plant.
This structure provides an environmentally friendly solution by increasing combustion efficiency as well as reducing emission values.
Features of Front Furnace Boilers
Although the technical specifications of prehearth steam boilers vary according to the manufacturer, capacity and type of fuel to be used, the general features are as follows:
- High thermal efficiency
- Front combustion chamber with refractory coating
- Structure compatible with solid, liquid or gaseous fuel
- Automatic fuel feed and ash removal systems (optional)
- Low flue gas emissions
- Easy maintenance and cleaning
- Automation-supported control panel
What are the Advantages
Prehearth systems offer many advantages compared to conventional boilers:
1. High Combustion Efficiency
Since combustion starts in the forebox, temperature and oxygen distribution are better controlled. This ensures complete combustion of the fuel.
2. Low Fuel Consumption
Efficient combustion results in less fuel use for the same amount of steam.
3. Environmentally Friendly Solution
Carbon monoxide (CO) and particulate emissions are lower due to complete combustion. Emission values comply with environmental regulations.
4. Long Lasting Structure
Thanks to the refractory coated front hearth and the use of quality materials, it works smoothly for many years.
5. Compatible with Automation
Thanks to PLC-supported control systems, values such as boiler pressure, temperature and water level can be controlled automatically.
In Which Industries Are They Used?
Preheated steam boilers are used in a wide range of industries:
- Food production facilities (sugar, milk, flour, oil, etc.)
- Textile and dyeing plants
- Chemical and petrochemical plants
- Paper and packaging industry
- Hospitals and hotels
- Heating systems
The use of steam as both energy and process heat in these sectors is the reason why prehearth systems are preferred.
Differences Between Preheated Steam Boilers and Other Boilers
The table below summarizes the main differences of prehearth boilers compared to conventional boilers:
| Feature | Preheated Steam Boiler | Classic Steam Boiler |
|---|---|---|
| Combustion Efficiency | High | Middle |
| Fuel Consumption | Less | More |
| Emission Level | Low | Higher |
| Automation Compatibility | High | Middle |
| Investment Cost | Medium – High | Low – Medium |
| Maintenance Frequency | Less | More |
Pre-Hob Steam Boiler Prices
Prehearth steam boiler prices vary according to the following factors:
- Capacity (kg/h)
- Fuel type (coal, natural gas, fuel oil, etc.)
- Automation level
- Quality of materials used
- Additional systems (feed water tank, economizer, chimney filter, etc.)
As Hisarmak, we offer the most suitable solutions specific to your needs. You can visit our steam boiler category for detailed information and offers.
Why Hisarmak?
Hisarmak is one of the leading steam boiler manufacturers in Turkey. It attaches great importance to quality standards, environmental regulations and energy efficiency principles in the production process.
- 25+ years of industry experience
- ISO and CE certified production
- High efficiency and long life boiler systems
- After-sales support and service
The preheated steam boiler is very advantageous for businesses that prioritize energy efficiency. It offers many features such as fuel saving, environmentally friendly structure, long life and high performance.
You can contact Hisarmak experts to determine the most suitable boiler system for your industrial facility and get detailed technical information and a price offer.
