Choosing a reliable coal burning boiler system starts with selecting an experienced boiler manufacturer. Founded in 1988, ZOZEN specializes in industrial boiler research, development, and manufacturing, providing equipment for customers in more than 100 countries and regions.

ZOZEN offers a wide range of industrial boilers, including oil and gas-fired boilers, coal-fired boilers, and biomass-fired boilers. Different industries have different fuel resources and steam requirements, so ZOZEN provides various boiler structures and combustion technologies to meet different operating conditions.

For customers planning a coal burning boiler system, understanding the combustion technology and equipment configuration is particularly important. ZOZEN offers two main coal-fired boiler solutions: chain-grate boilers and circulating fluidized bed boilers.

Chain-Grate Coal-Fired Steam Boiler System

A chain-grate coal burning boiler system is a practical choice for many industrial applications. It uses a moving grate to transport coal through the furnace, allowing the fuel to burn gradually as it moves through different combustion zones.

One major advantage of this design is its relatively simple operating process. Coal is automatically fed onto the grate, while air is supplied from different sections to support combustion. The system can also be equipped with automatic ash removal, reducing manual work during daily operation.

Another advantage is its adaptability to different coal grades. With a suitable grate structure and air distribution system, the boiler can burn various types of coal, depending on the project requirements. For factories looking for a dependable coal burning boiler system, chain-grate technology offers a practical balance between operating convenience and fuel utilization.

ZOZEN mainly provides the following chain-grate boiler models:

- DZL Series Single-Drum Boiler: Features a single-drum structure and compact layout. It is suitable for industrial users with relatively moderate steam requirements and limited installation space.

- SZL Series Double-Drum Boiler: Adopts a double-drum structure and is suitable for larger steam capacities. Its design supports stable steam production and convenient operation.

Both models can be configured according to coal characteristics, steam capacity, working pressure, and site conditions.

Project Case: SZL Coal-Fired Boiler for a Palm Oil Plant in Indonesia

Palm oil processing requires a continuous steam supply for sterilization, heating, and other production processes. ZOZEN supplied an SZL series 15 t/h coal-fired steam boiler to a palm oil processing plant in Indonesia.

The boiler uses a chain-grate combustion system with independent air chambers, allowing it to adapt to different coal grades, including bituminous coal, lean coal, and anthracite. Its optimized combustion arrangement supports stable steam output, with thermal efficiency reaching 81% or higher under design conditions.

Automatic fuel feeding and ash removal also make daily operation and maintenance easier. This coal burning boiler system provides the customer with a practical and economical steam supply solution.

  ZOZEN coal burning boiler system

Circulating Fluidized Bed Coal-Fired Steam Boiler System

For industrial enterprises with larger steam demands or more varied fuel resources, a circulating fluidized bed coal burning boiler system is another option.

Unlike chain-grate combustion, circulating fluidized bed technology burns fuel in a fluidized state. Coal particles mix with hot materials and air inside the furnace, while unburned particles are separated and returned to the combustion chamber for further burning.

This process offers several advantages:

Wide fuel adaptability: The system can handle different fuels, including coal, gangue, biomass, and other suitable fuels. This gives customers more flexibility when local fuel quality changes.

Efficient combustion: Repeated circulation allows fuel particles more opportunities to burn, improving fuel utilization.

Good load regulation: The combustion system can adapt to changes in steam demand, making it suitable for factories with varying production loads.

Lower pollutant emissions: With appropriate combustion control and emission treatment equipment, the system can help reduce pollutant emissions and meet applicable environmental requirements.

For customers considering this type of coal burning boiler system, ZOZEN recommends two main product series:

- DHX Series: A circulating fluidized bed boiler designed for industrial steam applications, featuring good fuel adaptability and stable combustion performance.

- SHX Series: A circulating fluidized bed boiler suitable for different industrial capacities and fuel conditions, offering flexible operation and reliable steam supply.

Project Case: 8 t/h SHX Boiler for a Beverage Enterprise in Mongolia

A beverage enterprise in Mongolia produces beverages, beer, and vodka. Its production processes, including brewing, heating, sterilization, and cleaning, require a continuous steam supply.

Considering the customer's production requirements and local fuel conditions, ZOZEN supplied an 8 t/h SHX series circulating fluidized bed steam boiler.

The boiler can utilize different fuels, including coal, gangue, biomass, and sludge. Its combustion technology provides good fuel adaptability and load regulation, helping the customer maintain stable steam production.

During the project, ZOZEN also coordinated equipment configuration, transportation, installation communication, and technical requirements. A ZOZEN sales manager visited the customer's site to discuss actual operating conditions and project requirements.

This coal burning boiler system demonstrates the advantages of circulating fluidized bed technology for industrial users that need both fuel flexibility and reliable steam production.

Why Cooperate with ZOZEN?

Choosing a coal burning boiler system is a long-term investment. Working with an experienced manufacturer can help reduce equipment selection risks and make project implementation easier.

Professional manufacturing capabilities

ZOZEN has extensive experience in industrial boiler manufacturing, supported by a modern production facility and established quality control procedures. From material preparation to welding, assembly, and inspection, each manufacturing stage is managed according to relevant technical requirements.

Solutions for different fuel conditions

Whether customers need a chain-grate boiler or a circulating fluidized bed system, ZOZEN can recommend suitable equipment based on coal quality, steam demand, and operating pressure. This helps customers avoid selecting an unsuitable coal burning boiler system.

International project experience

ZOZEN has supplied industrial boilers to customers in more than 100 countries and regions. Experience in different industries and markets helps the company understand local fuel conditions and project requirements.

Project communication and technical support

From initial equipment selection to manufacturing, delivery, and subsequent operation, ZOZEN maintains communication with customers and provides relevant technical support. This helps ensure that the selected coal burning boiler system matches the actual installation and production conditions.

Contact ZOZEN for Your Coal-Fired Boiler Solution

Whether you need a DZL or SZL chain-grate boiler, or a DHX or SHX circulating fluidized bed boiler, ZOZEN can help you evaluate the appropriate solution.

If you are planning a new coal burning boiler system or upgrading existing boiler equipment, contact ZOZEN today. Provide your required steam capacity, working pressure, coal type, and application. Our team will help you select a suitable boiler configuration for your industrial project.