ZOZEN’s Reliable Rice Husk Fired Steam Boiler

April 26, 2024

With increasing global attention towards environmental protection, biomass steam boilers have gained popularity among businesses. Rice husk, as a fuel, offers environmental benefits by reducing greenhouse gas emissions and environmental pollution. Furthermore, utilizing rice husk as a fuel allows for effective processing and utilization of agricultural by-products, reducing agricultural waste and providing economic benefits. ZOZEN offers a variety of rice husk fired steam boilers to meet the needs of different businesses.

ZOZEN’s Biomass Steam Boilers:
ZOZEN’s biomass boilers have wide fuel adaptability, including rice husk and various other biomass fuels. The biomass steam boilers are divided into three series: the DZL series rice husk fired steam boiler, SZL series double-drum rice husk fired steam boiler, and SHL series bulk rice husk fired steam boiler. These boilers have a thermal capacity starting from 1t/h and can reach up to 75t/h, providing a wide range of options. This article will focus on the DZL series rice husk fired steam boiler and SZL series double-drum rice husk fired steam boiler.

DZL Series Single-drum Rice Husk Fired Steam Boiler:

  • The DZL series biomass steam boiler is a horizontal three-pass water-fire tube chain grate boiler with a single drum design.
  • Thermal capacity ranges from 2 to 10 t/h.
  • Wide fuel adaptability and complete combustion: Suitable for rice husk and various other biomass fuels. In collaboration with Shanghai Jiao Tong University, ZOZEN conducts combustion tests on various biomass fuels, including rice husk, to ensure complete combustion and improve boiler efficiency based on experimental data.
  • Convenient on-site installation: Compact structure, easy on-site installation, short construction period, and cost-saving in infrastructure investment.
  • Adopting threaded smoke tubes: The threaded smoke tubes are highly efficient heat transfer components developed by ZOZEN through continuous optimization. The selection of thread groove depth and pitch achieves a heat transfer coefficient 1.8 times higher than ordinary smoke tubes when meeting the lowest flow resistance.
rice husk fired steam boiler
DZL series biomass boiler case

DZL Series Three-drum Rice Husk Fired Steam Boiler:

  • The DZL series third-generation biomass steam boiler consists of three drums and is a water tube boiler independently developed by ZOZEN with proprietary intellectual property rights.
  • Thermal capacity ranges from 15 to 40 t/h, suitable for rice husk and various other biomass fuels.
  • High thermal efficiency (>87.5%): The furnace adopts a densely arranged water-cooled wall tube structure, providing a large radiation area.
  • Customized fuel feeding system: ZOZEN designs different fuel feeding systems based on the characteristics of rice husk and other biomass fuels, effectively improving the overall boiler efficiency.
  • Adopting a new three-drum structure: Two small drums are arranged in the lower part of the convective tube bundle in an “A” structure, facilitating the smooth discharge of ash generated from biomass fuels towards the lower end of the convective tube bundle, minimizing boiler ash accumulation.

SZL Series Double-drum Rice Husk Fired Steam Boiler:

  • The SZL series biomass steam boiler is a horizontally arranged natural circulation water tube boiler designed by ZOZEN based on international advanced technology and experience.
  • Thermal capacity ranges from 6 to 35 t/h, suitable for rice husk and various other biomass fuels.
  • Customized boiler system: Customizable fuel feeding system, slagging system, and tail gas treatment system, providing worry-free and cost-effective solutions for customers.
  • Extended arch and increased furnace height: By extending the arch and increasing the furnace height, ZOZEN effectively solves common issues in biomass boilers such as arch collapse, door burnout, hopper backfire, and tube wall coking.

Customer Case:
A major chemical industry player in Ghana planned to invest in a highly automated and environmentally friendly detergent factory. To ensure a reliable heat source for the production line, the group chose ZOZEN’s SZL series biomass steam boiler. The customer feedback highlighted the stable steam supply from the boiler, which significantly improved the overall efficiency and production capacity of their factory. ZOZEN’s environmental technology and reliability have helped them take a solid step towards achieving their sustainable development goals.

ZOZEN’s Professional Services:
ZOZEN has established service centers across various provinces in China, as well as in Germany, Indonesia, the Philippines, Thailand, Vietnam, Uzbekistan, and other countries. It provides comprehensive and high-quality services such as project technical consultation, customized boiler system solutions, and installation guidance to customers, effectively addressing their concerns and helping them achieve their expected goals of cost reduction and efficiency improvement.


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