DZL Boiler: Efficient Biomass Steam Solutions by ZOZEN Boiler

The DZL boiler has become one of the most widely used biomass steam solutions in modern industry. Unlike conventional coal or oil-fired boilers, the DZL series is designed with advanced combustion systems that make full use of renewable resources such as wood chips, rice husks, palm shells, straw, corn cobs, and other agricultural residues. By adopting these alternative fuels, companies can reduce their reliance on fossil fuels while also cutting fuel costs significantly, especially when waste biomass is sourced from their own production processes.

DZL boilers are favored in a wide variety of industries. In the wood processing sector, they are used to provide stable high-temperature steam for timber drying and wood-based product manufacturing. In the food and beverage industry, DZL boilers are widely adopted to support sterilization, distillation, cooking, and drying processes. In the textile and dyeing sector, they ensure consistent steam output, which is critical for achieving uniform colors and product quality. The paper and pulp industry relies heavily on DZL boilers for continuous steam supply during pulping and drying operations. Even in agriculture and chemical production, DZL boilers serve as the backbone of operations, delivering heat energy efficiently and reliably.

As global manufacturing moves toward cleaner and more efficient production, ZOZEN Boiler  has positioned itself as a leading supplier of DZL boiler solutions. With years of research, international certification, and advanced production technology, ZOZEN provides DZL boilers that meet the dual requirements of industrial efficiency and environmental compliance.

Technical Parameters and Features of DZL Boiler

ZOZEN has developed multiple models within its DZL series to meet the needs of both medium and large-scale enterprises. Among them, the most representative are the DZL single-drum biomass boiler and the DZL three-drum non-ash-accumulation biomass boiler.

The DZL single-drum boiler is well-suited for small and medium-sized enterprises due to its compact structure and stable operation. It typically covers an evaporation capacity ranging from 2 to 10 tons per hour, with working pressures between 1.0 and 2.5 MPa. It incorporates a chain grate combustion system designed for efficient fuel burning, where the grate speed can be adjusted to match different biomass fuel properties. The boiler body adopts a threaded smoke tube structure, which enlarges the heating surface and enhances the heat transfer rate, pushing the thermal efficiency above 83%. Intelligent control systems further improve reliability, automatically regulating steam pressure, water level, and air distribution to guarantee safe and smooth operation. Maintenance is relatively simple, as the single-drum structure reduces the complexity of water circulation, thereby lowering operational costs.

The DZL three-drum non-ash-accumulation biomass boiler is designed for larger industrial operations that demand higher steam capacity and long-term stability. This model generally ranges from 10 to 40 tons per hour in evaporation capacity. Its three-drum structure optimizes water circulation, ensuring uniform heating and preventing localized overheating. One of the key innovations of this model is its non-ash-accumulation technology, which effectively prevents ash from depositing on the heating surfaces, ensuring long-term high efficiency and reducing the frequency of cleaning and maintenance. The larger combustion chamber also allows the use of biomass fuels with higher moisture content or lower calorific value, providing flexibility in fuel selection. Its advanced air distribution and multi-level dust collection systems help keep emissions within environmental regulations, while economizers and air preheaters at the exhaust side further improve fuel utilization.

Both types of DZL boilers share common strengths: they are highly adaptable to a wide variety of biomass fuels, maintain stable thermal efficiency above 83%, operate with automated safety systems, and are engineered to meet stringent environmental standards. Whether it is the single-drum model for medium enterprises or the three-drum version for larger industrial facilities, each boiler delivers reliable performance, long service life, and reduced overall cost of ownership.

H&Y Timber Company 4-ton DZL biomass boiler project 

H&Y Timber, a local papermaking company in Côte d’Ivoire, has been seeking sustainable and efficient energy sources to support its growing production needs. After extensive market research and rigorous selection, the company ultimately selected ZOZEN Boiler’s DZL series biomass boiler as its primary energy source. Using wood chips as its primary fuel, the boiler is both highly efficient and environmentally friendly, providing a strong foundation for the company’s sustainable development.

Technically, the chain grate system of the DZL boiler provided steady fuel feeding and combustion, ensuring that the moisture-rich wood residues could be burned efficiently. The threaded smoke tubes maximized heat transfer, while the economizer recovered waste heat from exhaust gases to further improve efficiency.

From an environmental perspective, the DZL boiler was equipped with dust collectors and combustion optimization systems, ensuring compliance with local air quality regulations. This not only helped the company enhance its environmental image but also made it eligible for certain government incentives related to sustainable energy practices. The introduction of the DZL boiler improved the company’s energy independence, boosted production efficiency, and strengthened its competitiveness in the regional timber market.

H&Y Timber Company encountered some issues during the installation process. Although they had some installation experience, they didn’t fully understand how to properly install and operate the biomass boiler. They communicated with Zhongzheng after-sales personnel at all times and provided feedback. The after-sales staff patiently answered their questions and provided detailed operating instructions and maintenance recommendations, ensuring the safe and stable operation of the biomass boiler.

Technical Advantages and After-Sales Service

The DZL boiler stands out in the industrial boiler market because it integrates advanced biomass combustion technology, high efficiency, and strong adaptability to various fuels. The single-drum model is an ideal choice for medium-scale enterprises seeking a balance between cost and efficiency, while the three-drum non-ash-accumulation model is the best solution for large-scale industries requiring higher output and long-term reliability. Both versions guarantee consistent performance, low maintenance, and compliance with environmental standards.

Beyond manufacturing, ZOZEN Boiler offers a comprehensive after-sales service system, which includes on-site installation guidance, operator training, spare parts supply, and long-term technical support. A dedicated service team is available around the clock to solve client problems and ensure that every DZL boiler operates at peak performance. This professional support reduces downtime, extends equipment life, and maximizes return on investment.

For enterprises that value stable steam supply, environmental sustainability, and cost-effective operations, ZOZEN’s DZL boiler provides a proven solution. By choosing ZOZEN, companies not only gain access to world-class boiler technology but also secure a long-term partner committed to delivering reliable energy solutions for industrial development and future growth.