Stoker-Fired Water-Tube Boiler
A stoker-fired water-tube boiler is a high-efficiency water-tube boiler in which solid fuel is fed into the furnace via a screw stoker system. The screw conveyor continuously and evenly feeds coal and biomass into the combustion zone, eliminating the need for manual feeding and ensuring balanced combustion. The water-tube design provides high heat transfer and safe operation, while controlled feeding ensures complete combustion and low emissions. Economical for small and medium capacities, the boiler enables fully automatic operation with automatic ash removal.
STOKER-FIRED WATER-TUBE BOILER
A stoker-fired water-tube boiler is a high-efficiency water-tube boiler in which solid fuel is fed into the furnace via a stoker (automatic screw-conveyor) system. The stoker system conveys solid fuels, such as coal and biomass, from the fuel hopper to the combustion zone in a regular and continuous manner via a screw conveyor. This eliminates the need for manual feeding, ensures balanced and controlled combustion, and minimizes operator intervention.
The boiler’s water-tube design provides significantly higher heat transfer per unit area and safer operation compared to fire-tube boilers. The heat generated by combustion is rapidly transferred to the water through the water-filled tubes; this results in high efficiency and a rapid response to sudden load changes. With stoker feeding, fuel is fed into the furnace in controlled quantities and in a homogeneous manner, ensuring complete combustion, fuel savings, and low emission levels.
The stoker-fired water-tube boiler is an economical and practical solution for small- and medium-capacity solid fuel applications. With a fuel hopper, screw feeder, and automatic ash removal, it offers fully automatic operation. Thanks to its robust steel construction, easy installation, and low maintenance requirements, it operates safely and efficiently for many years.
- Water-tube boiler with a stoker (automatic screw-feed) system
- Regular and continuous feeding of solid fuel into the furnace via a screw conveyor
- High heat transfer and safe operation thanks to the water-tube design
- Complete combustion through controlled and uniform fuel feeding
- Automatic fuel feeding and automatic ash removal
- Low fuel consumption and low emissions
- An economical solution for small and medium capacities
- Fully automatic operation — minimal operator intervention
- Manufactured from materials compliant with TSE standards
- Various capacity and operating pressure options
Fuel Characteristics:
- Capable of operating with coal and biomass (wood chips, sawdust, sunflower husks, hazelnut shells, olive pomace, cotton lint, etc.)
- Utilization of production waste as fuel
Optional Equipment:
- Economizer or recuperator (flue gas heat recovery system)
- Fuel storage bunker and feed screw
- Automatic ash discharge screw
- Thermocouple / PT100 temperature measurement equipment
- Automatic water feed and level control system
- Control panel and safety equipment
- Stoker (screw-type) automatic solid fuel feeding system
- High efficiency and safe operation thanks to the water-tube design
- Complete combustion and low emissions through controlled feeding
- Automatic ash discharge and fully automatic operation
- An economical solution for small and medium capacities
- Multi-fuel flexibility with coal and biomass
Stoker-fired water-tube boilers are widely used in small and medium-sized businesses where solid fuel is cost-effective:
Food and Beverage: Steam/heat requirements in dairy products, canned goods, tomato paste, and cooking processes
Textiles and Dyeing: Dyeing, finishing, and drying processes
Lumber, Wood, and Particleboard: Drying and pressing lines — using their own wood waste as fuel
Agricultural Processing and Feed: Drying, pelletizing, and processing facilities
Greenhouses and Agricultural Facilities: Space heating
Chemicals and Plastics: Low- and medium-capacity process heating
It offers a significant fuel cost advantage over natural gas, particularly in regions where coal and biomass are inexpensive and readily available.
Companies we have delivered this boiler to
- Neşecan Ayranİzmir · 3 t/h, 6 bar
- Kuyucu Sütİzmir · 1 t/h, 6 bar
Frequently Asked Questions
A stoker-fired boiler is a solid-fuel boiler in which coal and biomass are automatically and continuously fed into the furnace via a screw conveyor (stoker).
It is an economical, fully automatic solution for small- and medium-capacity steam and heat needs.
For small and medium capacities, a stoker is more economical; for medium and high capacities in continuously operating facilities, a rotary grate is more suitable. Rotary Grate Steam Boiler Guide
Stoker-Fired Water-Tube Boiler — let’s size it together
Our engineers plan capacity, pressure and fuel choice for your needs.