DZH Series Biomass Boiler

The specification or technical parameters of the DZH Biomass Fired Steam Boiler are to include Rated Steam Capacity (tonne/hour); Working Pressure (MPa); Steam Temperature (degree centigrade); Thermal Efficiency (%); Fuel Type (e.g. Wood Chips, Saw Dust, Rice Husk, Bagasse, and Waste Wood Pieces); Grate Type (Moving Grate or Chain Grate); Boiler Electric Consumption (kWh/t); Boiler Flue Gas Temperature; and Boiler Dimensions. The DZH Series of Biomass Steam Boiler are manufactured by using Water-Tube and/or Water-Tube/Fire Tube Combination designs and are equipped with Threaded Fire Pipes and a Single Water Drum for the high-temperature burning process and are capable of operating successfully and efficiently; manufacturers such as Henan and others have published detail Parameter Tables for each of the different DZH Series Biomass Steam Boilers that they produce.

DZH Moving Grate Hot Water Boilers are designed for increased fuel adaptability and can burn a variety of biomass fuels, including wood chips, wood logs, sawdust, rice husk, bagasse, and waste wood. The Moving Grate design helps create an efficient combustion process by providing proper and effective primary and secondary air distribution, and allows for a decrease in the time and man-hours required for manual feeding of the boiler/grate with fuel. Because of the unique characteristics of the Moving Grate, the DZH Biomass Boilers offer greater adaptability across industries such as textile manufacturing, food processing, and building construction.

DZH Water Boilers (Hot Water Boilers) produce hot water for heating and/or processing applications, and DZH Steam Boilers create steam as specified by customer requirements for use in Power Generation, Sterilization of materials, and/or Heating. The DZH Steam Boiler Series is often referred to as Fired Steam Boilers, and most are Water-Tube or Water-Tube/Fire Tube combination designs; however, Hot Water Boilers may be designed as Shell Type Boilers (i.e., with 3 fire-passes) or Horizontal Shell Type Boilers. The final decision on selecting a DZH Boiler will depend on the customer’s output, pressure, and thermal efficiency requirements.

The thermal efficiency of a DZH biomass boiler is enhanced by multiple features, including threaded fire tubes, staged combustion with secondary air, optimized furnace designs, heat recovery from flue gas, and either a moving grate or a chain grate to ensure complete combustion of the biomass fuel. Dust collection and well-designed flue systems ensure minimal heat loss. Some DZH boiler manufacturers include provisions for waste heat recovery and/or thermal oil-heater integration to achieve greater efficiency.

Yes, there are various DZH Series models designed with compact configurations to accommodate limited boiler room space. A few options consist of a horizontal shell-type boiler with 3 Fire Passes or a single drum water tube design; however, you will need to address the area that will require remaining fuel storage, such as wood chips, sawdust, or bagasse, ash handling from your moving grate, routing of the flue, and safety clearances of the pressure vessel. For safe commissioning and compliance with local codes, the boiler factory or an authorized equipment company must conduct the commissioning.

The DZH biomass boiler can burn a wide variety of biomass fuels, including but not limited to: wood chips, sawdust, wood logs, rice husks, bagasse, and various biomass fuel combinations. Certain DZH designs also support hybrid applications using coal and/or LPG as co-firing options. The type of fuel affects ash content, slagging rate, and grate wear. The finer ashes from sawdust and rice husks may require you to adjust the dust collector settings, while the larger wood logs will require more robust feeder and moving grate settings. In addition, regular inspection of the grate, flue gas passages, and dust collector will improve your boiler’s thermal efficiency and extend its service life.

The DZH boiler complies with the pressure vessel’s certified constraints and safety devices, including a pressure relief valve, water level control, auto-feed for fuel in moving-grate systems, and flame monitoring. Types of fire-tube/ water-tube water or threaded fire tubes are the best fit to provide mechanical strength and effective heat transfer, paralleling. Proper commissioning into service and regular maintenance often impose operational constraints, as in the print and dye industries, textiles, or food processing.

Foundation design, with bibliographic references to similar architectural installations supporting the boiler weight and ventilation, is a continuous series of installations in the boiler room. Flue and chimney sizing to exhaust flue gas; appropriate passageways for ash removal from the moving grate or chain system; and a boiler room plan for plant fuel storage. Commissioning essentially involves leak checks, burner and grate adjustments, control tuning, and thermal efficiency checking. Checking for guarantees on the technical parameters from the DZH factory or an authorized service provider can also ensure compliance with the technical parameters and performance goals.