Shandong Zhongjie Special Equipment's main products include: fuel (gas) boilers, organic heat carrier boilers, biomass boilers, waste heat recovery boilers, and other boiler products; vacuum insulation cryogenic pressure vessels such as LNG tanks, oxygen/nitrogen/argon tanks, and CO2 tanks; pressure vessel products such as denitrification engineering equipment, heat storage and energy storage equipment, and complete chemical equipment; central air conditioning and HVAC equipment such as ground (water) source heat pumps, air source units, water-cooled screw units, and air-cooled modular units. Planned products include large-scale energy centers, LNG transport vehicles, LNG tank containers, and other green energy equipment.
Chain biomass boiler is a common type of biomass boiler, its working principle and process are as follows:
Fuel Supply: Biomass fuel (such as wood chips, straw, etc.) is delivered to the combustion chamber of the chain boiler via the feeding system.
The combustion process: Fuel is ignited in the combustion chamber while the chain boiler's chain system begins to operate. The fuel is gradually pushed forward by the chain movement, simultaneously burning within the combustion chamber. During combustion, the fuel is thoroughly mixed with air, and the heat energy produced is transferred to the boiler's water or other working substance.
Flue Gas Emission: The flue gas produced from combustion is channeled through the flue system of the combustion chamber and released into the chimney. During the flue gas emission process, it can be treated with flue gas purification equipment to reduce the particulate matter and gas pollutants in the emissions.
Heat Recovery: The heat produced by combustion is transferred to water or other working fluids through a boiler heat exchanger, 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, chain biomass chain boilers gradually push biomass fuel into the combustion chamber through a chain system for burning. The thermal energy is transferred to water or other working substances through heat exchangers, achieving heat recovery and utilization. These boilers feature high combustion efficiency and strong fuel adaptability, and are widely used in heating, industrial heating, and other fields.

The fuel feeding system of biomass pellet fuel boilers typically includes the following components:
Feeding Conveyance System: Used to transport biomass pellet fuel from storage areas or supply sources to the boiler fuel storage. The feeding conveyance system can utilize screw conveyors, chain conveyors, belt conveyors, etc., with the appropriate conveying method selected based on actual conditions.
Fuel Storage Tank: Used for storing biomass pellet fuel, typically located at the bottom of the boiler. The design of the fuel storage tank should consider the fuel capacity and stable supply to ensure continuous operation of the boiler.
Feed Control System: Used to regulate the rate and quantity of fuel supply to meet the thermal load requirements of the boiler. The feed control system typically includes controls for the start and stop of the feed conveyor, as well as adjustments to the feed quantity.
Fuel Crushing System (Optional): For some larger biomass granular fuel, crushing may be required to better accommodate the boiler's combustion requirements. The fuel crushing system typically includes crushers, jaw crushers, and other equipment.
Fuel Pre-treatment System (Optional): For biomass pellet fuels containing higher moisture content or impurities, pre-treatment such as drying, screening, and de-impurity may be required to enhance combustion efficiency and stability.
When designing and selecting the feed system for biomass pellet fuel boilers, factors such as the fuel characteristics, supply volume, and combustion requirements need to be considered. At the same time, ensure the stability, reliability, and safety of the feed system to guarantee the boiler's...

Reduce NOx emissions from biomass boilers by implementing 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 formation of nitrogen oxides is reduced. Methods such as staged combustion and optimized combustion chamber design can be employed to lower combustion temperatures and extend combustion times, further minimizing nitrogen oxide generation.
SNCR Technology: Selective Non-Catalytic Reduction (SNCR) technology involves injecting a reductant, such as urea solution, into the combustion process to react with nitrogen oxides, converting 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 method. By injecting urea solution into flue gas and passing it through 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 (FGR): The Flue Gas Recirculation (FGR) technique recycles a portion of flue gas back into the boiler combustion chamber, reducing combustion temperature and oxygen concentration, thereby minimizing the formation of nitrogen oxides. This technology can control nitrogen oxide emissions by adjusting the recirculation ratio.
Fuel Selection and Pretreatment: Choosing low nitrogen fuels, such as low nitrogen biomass fuels, can reduce the formation of nitrogen oxides. Additionally, for biomass fuels with high nitrogen content, pretreatment measures like drying and gasification can be adopted to lower the generation 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 thermal conduction efficiency, and decrease nitrogen oxide emissions.
By comprehensively implementing the aforementioned measures, nitrogen oxide emissions 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.

Coal-fired boiler dust removal technology is designed to reduce particulate emissions during the combustion process of coal-fired boilers, protecting the environment and improving air quality. Here are several common coal-fired boiler dust removal techniques:
Mechanical Dust Collectors: Mechanical dust collectors are one of the common dust removal equipment, which separates particulate matter from flue gas through physical principles. Common types include gravity dust collectors, inertial dust collectors, bag dust collectors, and more. The working principle of mechanical dust collectors is to utilize the inertia, gravity, or filtration effect of particles to separate them from the flue gas.
Electrostatic Precipitator: An electrostatic precipitator uses an electric field to charge the particulates in flue gas, then collects the charged particles using the electric field's force. There are two types of electrostatic precipitators: dry and wet. The dry type is suitable for high-temperature flue gas, while the wet type is for flue gas with higher humidity.
Wet Dust Collectors: Wet dust collectors wet the particulate matter in flue gas with spray water or other liquids, then separate the wetted particles from the flue gas through gravity or inertial force. They are suitable for treating flue gas with high humidity and sticky particles.
Electrostatic Precipitator: An electrostatic precipitator utilizes the force of an electric field to charge particles in flue gas, then collects the charged particles by the action of the electric field. Suitable for the treatment of high-temperature flue gas and fine particles.
Dust and desulfurization integrated technology: This technology combines the dust removal and desulfurization processes into one, achieving integrated treatment by sharing equipment and jointly processing flue gas. It can reduce the footprint of equipment, lower investment and operating costs.
Above are common coal-fired boiler dust removal technologies, with different dust removal techniques suitable for varying flue gas and particulate matter characteristics. In practical applications, an appropriate combination of dust removal techniques can be selected based on specific circumstances to achieve the goal of reducing particulate matter emissions.
Our company attaches great importance to technological innovation and R&D design. We have one municipal-level enterprise technology center in Heze City, equipped with testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, etc. We have over 600 types of equipment, including CNC machine tools, X-ray flaw detectors, digital ultrasonic flaw detectors, mechanical property testing machines, chemical analyzers, spectrometers, tensile testing machines, plasma welding machines, and more. The key products we have developed, such as temperature and pressure vessel welding, biomass boiler emission reduction, and waste heat utilization, have successively been shortlisted for multiple Shandong Provincial Department of Industry and Information Technology science and technology innovation projects, Shandong Provincial key projects, and Heze City innovation and excellence projects. We have accumulated 27 authorized utility models, 16 authorized inventions, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. Our technical team, in collaboration with Professor Yajiang Li from Shandong University, has developed deep cryogenic container processing technology using the international plasma arc + filler wire argon arc welding (PAW-GTAW) technology. This technology has been appraised as reaching international standards in the field of deep cryogenic container manufacturing at the provincial level. Choose Zhongjie Special Equipment, and let's create brilliance together!