Shandong Zhongjie Special Equipment Co., Ltd. (formerly Heze Boiler Factory Co., Ltd.) holds an A-grade boiler manufacturing license, an A2-grade pressure vessel manufacturing license, an A2-grade pressure vessel design license, B-grade boiler installation and GB2, GC2 pressure pipeline installation licenses, as well as an electromechanical equipment installation contracting qualification. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and the Council Member of the Shandong Equipment Manufacturing Association. The company has also passed certifications for ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System, and the U.S. ASME/U2 certification.
Reducing emissions of nitrogen oxides (NOx) from biomass boilers can be achieved through the following measures:
Combustion Control Technology: Utilizes advanced combustion control techniques, such as low nitrogen combustion technology. By optimizing the combustion process and controlling the combustion temperature and oxygen concentration, the generation of nitrogen oxides is reduced. Methods like staged combustion and optimized combustion chamber design can be employed to lower combustion temperatures and extend combustion times, further minimizing nitrogen oxide formation.
SNCR Technology: Selective Non-Catalytic Reduction (SNCR) technology involves injecting reductants, such as urea solution, into the combustion process to react with nitrogen oxides and convert them into nitrogen and water. This technique can reduce the formation and emission of nitrogen oxides during combustion.
SCR Technology: Selective Catalytic Reduction (SCR) technology is a nitrogen oxide control technique. By injecting urea solution into flue gas and through the action of a catalyst, nitrogen oxides are converted into nitrogen and water. SCR technology achieves nitrogen oxide removal at lower temperatures and is suitable for large biomass boilers.
Flue Gas Recirculation: Flue Gas Recirculation (FGR) technology recycles a portion of flue gas back into the boiler combustion chamber, reducing combustion temperature and oxygen concentration, and minimizing the formation of nitrogen oxides. This technique can control nitrogen oxide emissions by adjusting the recirculation ratio.
Fuel Selection and Pretreatment: Opting for low nitrogen fuels, such as low nitrogen biomass fuel, can reduce the formation of nitrogen oxides. Furthermore, for biomass fuels with high nitrogen content, pretreatment measures like drying and gasification can be taken to decrease the formation of nitrogen oxides during combustion.
Regular maintenance and cleaning: Regularly maintain and clean biomass boilers to ensure the cleanliness and proper operation of components such as burners and heat exchangers. Cleaning the combustion chamber and heat exchangers can reduce the accumulation of dirt, enhance heat transfer efficiency, and lower nitrogen oxide emissions.
By comprehensively implementing the aforementioned measures, the emission of nitrogen oxides from biomass boilers can be effectively reduced, achieving the goals of environmental protection and energy conservation. The specific measures to be chosen should be based on the characteristics of the boiler, its operating conditions, and emission requirements.

The SZL Biomass Chain Grate Steam Boiler is a specific type of biomass boiler that utilizes chain grate technology to burn biomass fuel and generate steam. Below are some features and characteristics of the SZL Biomass Chain Grate Steam Boiler:
Briquette Design: The SZL biomass chain grate steam boiler utilizes a chain grate design, where fuel is progressively pushed through the grate layers for a continuous combustion process. The chain grate offers ample combustion space and extended burning time, ensuring thorough combustion of biomass fuel.
Multi-fuel Adaptability: The SZL biomass chain steam boiler is suitable for various biomass fuels such as wood chips, straw, rice husk, etc. It boasts strong fuel adaptability and can choose the appropriate fuel for combustion based on actual conditions.
Heat Exchanger: The heat exchanger for the SZL biomass chain steam boiler maximizes the utilization of heat energy in flue gas, enhancing thermal efficiency. The design and material selection of the heat exchanger have been optimized to achieve effective heat conduction and exchange.
The control system: The SZL biomass chain grate steam boiler is equipped with a control system that can accurately control and adjust parameters such as temperature, pressure, and fuel supply. The control system features safety protection functions, such as overheat protection and low water level protection, ensuring the safe operation of the boiler.
Environmental-friendly Low Emission: The SZL biomass chain grate steam boiler utilizes

The biomass boiler combustion technology refers to the process of burning biomass fuel to release heat energy. The following are common biomass boiler combustion technologies:
Fuel Combustion Methods: Biomass boilers can utilize various combustion methods, including direct combustion, gasification combustion, and liquefaction combustion, etc. Direct combustion involves burning biomass fuel directly in the furnace; gasification combustion converts biomass fuel into combustible gases at high temperatures before burning; liquefaction combustion burns biomass fuel after converting it into liquid fuel.
Combustion Control: Biomass boilers require control systems to manage fuel supply, air supply, and the combustion process. By adjusting the ratio of fuel to air, the combustion temperature and efficiency are controlled to ensure a stable combustion process.
Combustion Equipment: The combustion equipment of biomass boilers includes the furnace, grate, and combustion chamber, etc. The furnace is the main combustion area, the grate supports and burns the fuel, and the combustion chamber provides an appropriate environment for combustion.
Combustion Equipment: To enhance the combustion efficiency and environmental performance of biomass boilers, combustion equipment such as pre-heaters, dust collectors, and desulfurization devices are often fitted. Pre-heaters are used to increase the combustion temperature and thermal efficiency of the fuel, dust collectors to remove particulate matter from the flue gas, and desulfurization devices to remove sulfur from the flue gas.
Combustion control and monitoring: Biomass boilers require equipment for combustion

Chain biomass boiler is a common type of biomass boiler, and its working principle and process are as follows:
Fuel Supply: Biomass fuels (such as wood chips, straw, etc.) are transported to the combustion chamber of the chain boiler through the feeding system.
Fuel combustion process: The fuel is ignited in the combustion chamber, while the chain boiler's chain system starts to operate. Under the movement of the chain, the fuel gradually advances and burns simultaneously within the combustion chamber. During the combustion process, the fuel is thoroughly mixed with air, and the heat energy produced is transferred to the water or other working substance in the boiler.
Flue Gas Emission: The flue gas produced by combustion is channeled through the flue system of the combustion chamber and discharged into the chimney. During the flue gas emission process, treatment can be carried out using flue gas purification equipment to reduce the emitted particulate matter and gas pollutants.
Heat Recovery: The heat generated from combustion is transferred to water or other working substances through the heat exchanger of the boiler, raising their temperature. After heat recovery, the hot water or steam can be used for heating, hot water supply, or other industrial processes.
Control System: Chain biomass chain boilers are typically equipped with an automatic control system for monitoring and adjusting parameters such as temperature, pressure, and fuel supply during the combustion process. The control system can automatically adjust according to actual needs to ensure the safe operation and performance of the boiler.
Overall, the biomass chain boiler employs a chain system to gradually push biomass fuel into the combustion chamber for burning. The heat energy is transferred to water or other working substances through a heat exchanger, achieving heat recovery and utilization. This boiler boasts high combustion efficiency and strong fuel adaptability, and is widely used in heating, industrial heating, and other fields.
Zhongjie Special Equipment adheres to the great vision of "realizing employee dreams, creating customer value, and striving for the prosperity and strength of our motherland," and is dedicated to the development of the green energy equipment industry, offering society products and services with high cost-performance!