A biomass sawdust boiler is widely recognized as an effective solution for industries seeking to convert wood residues and agricultural by-products into stable thermal energy. In regions where sawdust, wood chips, and other biomass materials are readily available, this type of boiler allows enterprises to reduce reliance on fossil fuels while maintaining continuous steam supply. The combustion of biomass in a properly engineered system supports both energy efficiency and environmental responsibility, making the biomass sawdust boiler an important component of modern industrial energy strategies.

Compared with conventional coal-fired systems, a biomass sawdust boiler is designed to handle low-density, high-moisture fuels with variable particle sizes. Stable feeding, controlled air distribution, and optimized furnace structure are essential to ensure complete combustion and consistent steam output. ZOZEN BOILER has accumulated extensive experience in biomass combustion technology and has developed advanced boiler systems that effectively address the operational challenges associated with sawdust and other loose biomass fuels. Through structural innovation and refined combustion control, ZOZEN provides reliable biomass sawdust boiler solutions tailored to industrial users.

ZOZEN 25 ton DZW Reciprocating Grate Biomass Steam Boiler

Technical Features of ZOZEN DZW Reciprocating Grate Biomass Steam Boiler

Among ZOZEN’s biomass product portfolio, the DZW series reciprocating grate steam boiler stands out as a mature and technically refined biomass sawdust boiler designed for medium and large capacity applications. The DZW series adopts a three-drum water-tube structure, which enhances water circulation and improves overall thermal stability during continuous operation. This configuration supports higher steam output while maintaining structural integrity under demanding working conditions.

One of the defining characteristics of the DZW biomass sawdust boiler is its wide fuel adaptability. The system can accommodate various biomass fuels, including loose biomass materials, construction templates, wood chips, palm shells, and other forestry and agricultural residues. This flexibility is particularly valuable for industrial parks and enterprises that generate diverse biomass waste streams internally. Even when the fuel characteristics vary in moisture content or particle size, the DZW boiler maintains steady combustion performance.

To address the challenges of burning biomass with relatively high moisture content, ZOZEN integrates a reciprocating grate combined with an independent air chamber structure. The reciprocating grate ensures uniform fuel distribution and progressive combustion along the grate surface. Meanwhile, the independent air chambers allow precise control of primary air supply in different combustion zones. This arrangement improves fuel drying, ignition, and burnout processes, enabling the biomass sawdust boiler to achieve more complete combustion and stable heat release.

In terms of heat transfer design, the DZW series utilizes densely arranged membrane water-cooled wall tubes. This structural configuration expands the effective radiation area within the furnace and enhances heat absorption efficiency. By increasing the contact area between high-temperature flue gas and heat transfer surfaces, the boiler reduces heat loss and strengthens thermal performance. With a carefully designed boiler system and optimized heat exchange surfaces, the thermal efficiency of the DZW biomass sawdust boiler exceeds 86.7%, ensuring effective utilization of biomass energy resources.

The DZW series also incorporates a well-designed convection heating surface and a reliable steam-water separation system within the drums. This guarantees stable steam quality and supports continuous industrial processes that depend on consistent pressure and temperature. Through the integration of structural durability, combustion optimization, and effective heat transfer, the DZW biomass sawdust boiler provides a balanced solution for enterprises aiming to combine sustainability with production reliability.

Three 25 t/h Biomass Sawdust Boiler Units for a Paper Enterprise

A paper manufacturing enterprise planned to install three 25-ton-per-hour biomass boilers within its industrial park. The objective was to ensure stable steam supply for continuous papermaking processes while achieving high efficiency and environmental compliance. Given the scale of the project and the operational demands of the paper industry, the client required a biomass sawdust boiler system capable of handling diverse biomass fuels generated within the park.

To support the smooth implementation of the project and meet the requirements for efficiency, stability, and environmental performance, ZOZEN provided three DZW series third-generation biomass reciprocating grate steam boilers. Each unit was designed as a three-drum water-tube biomass sawdust boiler, combining structural robustness with advanced combustion technology.

The paper enterprise benefited from the wide fuel adaptability of the DZW biomass sawdust boiler. Within the industrial park, various biomass materials such as loose biomass residues, construction templates, wood chips, and palm shells were available. The DZW system accommodated these fuels without compromising combustion stability. This flexibility allowed the enterprise to make full use of internal waste resources, supporting both cost control and sustainable operation.

To ensure effective combustion even when using biomass with higher moisture content, ZOZEN applied the reciprocating grate and independent air chamber structure in each biomass sawdust boiler unit. The grate movement facilitated even fuel spreading and progressive burning, while the segmented air supply improved combustion completeness. As a result, the boilers maintained steady thermal output and consistent steam generation throughout operation.

The densely arranged membrane water-cooled wall tubes expanded the furnace radiation area, improving heat absorption within the combustion chamber. By optimizing the boiler system configuration, ZOZEN ensured that the thermal efficiency of each biomass sawdust boiler exceeded 86.7%. This efficient heat utilization reduced overall fuel consumption and supported the enterprise’s goal of lowering energy costs.

The installation of three 25 t/h DZW biomass sawdust boiler units provided the paper enterprise with sufficient steam capacity to sustain continuous production. The coordinated operation of multiple boilers also enhanced operational flexibility, enabling the enterprise to adjust load distribution according to production demands while maintaining stable performance.

Choosing ZOZEN Biomass Sawdust Boiler Solutions

Selecting a biomass sawdust boiler requires careful consideration of fuel characteristics, combustion stability, heat transfer efficiency, and long-term operational reliability. For industries such as paper manufacturing, where steam demand is continuous and substantial, the structural design and combustion performance of the boiler directly influence production stability and energy expenditure.

ZOZEN’s DZW series biomass sawdust boiler integrates a three-drum water-tube configuration, reciprocating grate combustion technology, and densely arranged membrane water-cooled walls to achieve stable and efficient steam generation. With thermal efficiency exceeding 86.7% and strong adaptability to multiple biomass fuels, the system supports enterprises in utilizing renewable resources effectively.

By combining advanced combustion design with practical engineering experience, ZOZEN provides biomass sawdust boiler solutions that align with industrial sustainability goals while ensuring reliable steam supply. For enterprises seeking to transform biomass residues into productive energy, the DZW biomass sawdust boiler offers a technically sound and operationally dependable choice that contributes to long-term industrial development.