With the rising demand for cleaner energy and the increasing cost of conventional fossil fuels, the wood chip biomass boiler is becoming more popular in industrial production. Wood chips are widely available in many regions as a by-product of forestry, woodworking, furniture manufacturing, and agricultural processing. Turning these low-cost biomass resources into useful thermal energy can help factories reduce their dependence on conventional fuels while making better use of locally available resources.
For industries such as feed production, food processing, paper manufacturing, textile production, and wood processing, steam is often an essential part of daily production. A properly designed wood chip biomass boiler can convert wood chips into continuous steam and provide a stable heat source for production lines. However, wood chips have different moisture content, particle sizes, and feeding characteristics compared with coal or biomass pellets. Therefore, choosing a boiler with a suitable combustion system is particularly important.
As an experienced industrial boiler manufacturer, ZOZEN has developed several biomass boiler solutions for different fuel characteristics and production requirements. Its DZL, DZW, and SZL biomass boiler series can be selected according to fuel type, steam capacity, operating conditions, and customer requirements.
DZL Three-Drum Chain Grate Biomass Boiler
For customers looking for a wood chip biomass boiler, the combustion system is one of the first factors to consider. ZOZEN's DZL three-drum chain grate biomass boiler is designed for industrial biomass combustion and can handle a variety of biomass fuels.
The chain grate continuously transports the fuel into the furnace. As the fuel moves forward, it goes through the drying, combustion, and burnout stages. This continuous process makes the boiler suitable for factories that require a relatively stable steam supply for long periods.
One important advantage of the DZL series is its adaptability to different biomass materials. Depending on the specific design and fuel conditions, the boiler can be used with biomass chips, agricultural residues, wood waste, and other suitable solid biomass fuels.
The three-drum water-tube structure also provides an effective heat-transfer arrangement. The furnace and heating surfaces are designed to make better use of the heat released during combustion, helping improve overall thermal performance.
For factories with relatively stable fuel supply and continuous production schedules, a DZL wood chip biomass boiler can provide a practical solution for converting wood waste into useful process steam.
DZW Reciprocating Grate Biomass Boiler
Not every biomass fuel has the same combustion characteristics. Some factories may have access to loose biomass with relatively high moisture content or fuels with noticeable variations in size and composition. In these situations, a reciprocating grate system can offer advantages.
ZOZEN's DZW series biomass boiler uses a three-drum water-tube structure and reciprocating grate combustion technology. The moving grate helps loosen and turn the fuel layer during combustion, allowing biomass materials to move steadily through the furnace.
Compared with simply relying on a fixed fuel bed, the reciprocating movement can help reduce fuel accumulation and improve the contact between fuel and combustion air. This is particularly useful when customers need to burn loose biomass materials rather than standardized pellets.
Another feature of the DZW series is its independent air chamber design. Air can be supplied to different sections of the grate according to the combustion stage. This helps provide more suitable combustion conditions during fuel drying, ignition, combustion, and burnout.
For customers whose fuel contains more moisture or varies significantly in physical characteristics, the DZW series can therefore be considered as an alternative wood chip biomass boiler solution.
SZL Double-Drum Biomass Boiler
In addition to the DZL and DZW series, ZOZEN also offers the SZL double-drum biomass boiler. This series uses a double-drum water-tube structure together with a chain grate combustion system.
The SZL boiler is suitable for medium and large-scale industrial steam applications and can be adapted to various biomass fuels, including wood chips and other solid biomass materials.
Its continuous chain grate feeding system allows fuel to enter the furnace steadily, making it suitable for production lines that require continuous steam. The double-drum structure provides a reasonable arrangement of the water circulation and heating surfaces, while the overall boiler system can be configured according to the customer's fuel and operating conditions.
Compared with choosing a boiler only according to its nominal capacity, selecting the right wood chip biomass boiler requires consideration of the actual fuel characteristics. Factors such as moisture content, particle size, bulk density, ash content, and fuel availability can all affect combustion performance.
ZOZEN can evaluate these conditions before recommending the appropriate DZL, DZW, or SZL biomass boiler.
Indonesian Feed Mill Uses Biomass Fuel for Steam Production
An Indonesian feed mill provides a practical example of how biomass resources can be integrated into industrial production.
The factory mainly produces livestock and poultry feed. During feed manufacturing, processes such as raw material conditioning, curing, and pelletizing require a continuous supply of steam. As production expanded, the existing thermal system could no longer fully satisfy the factory's requirements for steam capacity, fuel adaptability, and continuous operation.
At the same time, wood chip resources are relatively abundant in Indonesia. Instead of treating wood chips simply as waste materials, the customer wanted to convert this locally available biomass into useful thermal energy.
After evaluating the customer's steam demand and fuel characteristics, ZOZEN supplied an SZL series biomass steam boiler. The double-drum structure and chain grate combustion system are suitable for wood chips and other biomass fuels.
During operation, the chain grate continuously moves the fuel through the furnace, helping maintain a stable combustion process. This configuration is well suited to the feed mill's continuous production requirements. The boiler's thermal efficiency can reach more than 86%.
The project shows why the design of a wood chip biomass boiler needs to be closely connected with the actual fuel available at the factory. When the combustion system, fuel properties, steam load, and operating schedule are properly matched, wood chips can become a useful energy resource rather than simply a disposal problem.
For feed mills in regions with abundant wood-processing residues, a wood chip biomass boiler can therefore provide both an energy solution and a practical way to utilize local biomass resources.

ZOZEN wood chip biomass boilers
Why Choose ZOZEN for a Wood Chip Biomass Boiler?
Selecting a wood chip biomass boiler is not only about purchasing the boiler body. The complete system may include fuel feeding, combustion, air supply, ash removal, dust removal, water treatment, steam piping, automatic control, and other auxiliary equipment.
ZOZEN focuses on the complete industrial boiler system rather than a single piece of equipment.
Fuel-Based Boiler Design
Biomass fuels can vary considerably from one project to another. Wood chips from different sources may have different moisture levels, sizes, and calorific values. ZOZEN can take these characteristics into account when selecting the combustion system and configuring the boiler.
This allows the wood chip biomass boiler to be designed around the customer's actual fuel instead of using the same configuration for every project.
Mature Biomass Combustion Technology
ZOZEN has developed different grate combustion technologies for different biomass applications. DZL chain grate boilers, DZW reciprocating grate boilers, and SZL double-drum biomass boilers provide customers with more choices.
The purpose is simple: match the boiler structure and combustion method with the fuel and production requirements.
Complete Manufacturing Process
Boiler reliability is closely related to manufacturing quality. ZOZEN has a professional manufacturing base and a complete production process covering material preparation, welding, machining, assembly, inspection, testing, and delivery.
Quality control is implemented throughout the manufacturing process to help ensure that the completed boiler meets the required technical specifications.
Find the Right Wood Chip Biomass Boiler for Your Factory
A wood chip biomass boiler can be a good option for factories with stable access to wood chips and other biomass residues. But the most suitable boiler depends on more than steam capacity. Fuel moisture, particle size, heating value, ash characteristics, required steam pressure, daily operating hours, and available installation space should all be considered.
ZOZEN provides DZL three-drum chain grate boilers, DZW reciprocating grate boilers, and SZL double-drum biomass boilers for different industrial applications. Whether you are operating a feed mill, food factory, paper mill, textile plant, or another biomass-consuming facility, ZOZEN can evaluate your fuel and steam requirements and recommend a suitable wood chip biomass boiler solution.
If you are planning a new biomass boiler project, replacing an existing coal-fired boiler, or looking for a more efficient way to utilize wood chips, contact ZOZEN with your fuel type, moisture content, required steam capacity, steam pressure, and application. ZOZEN can provide a customized biomass boiler solution based on your actual operating conditions.

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