Shandong Zhongjie Special Equipment (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, a B-grade boiler installation license, and GB2/Class GC2 pressure pipeline installation licenses, as well as a mechanical and electrical equipment installation contracting qualification. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and the council unit of the Shandong Equipment Manufacturing Association. The company has also passed the ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System certifications, and the U.S. ASME/U2 certification.
Dust removal technology for coal-fired boilers is designed to reduce particulate emissions during the combustion process, protecting the environment and improving air quality. Here are several common dust removal techniques for coal-fired boilers:
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 particulates to separate them from the flue gas.
Electrostatic Precipitator: An electrostatic precipitator utilizes the force of an electric field to charge the particulate matter in flue gas, then collects the charged particles using the electric field. There are two types of electrostatic precipitators: dry and wet. Dry electrostatic precipitators are suitable for high-temperature flue gas, while wet electrostatic precipitators are suitable for flue gas with high humidity.
Wet Scrubber: A wet scrubber utilizes water spray or other liquids to humidify particulate matter in flue gas, which is then separated from the gas by gravity or inertial force. Wet scrubbers are suitable for the treatment of flue gas with high humidity and sticky particulates.
Electrostatic Precipitator: An electrostatic precipitator charges particulates in flue gas using an electric field, then collects the charged particles through the action of the electric field. It is suitable for treating high-temperature flue gas and fine particulates.
Integrated Dust and Desulfurization Technology: The integrated dust and desulfurization technology combines the two processes of dust removal and desulfurization, achieving integrated treatment by using shared equipment and jointly processing flue gas. This technology can reduce the occupied area of equipment, lower investment and operational 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, a suitable combination of dust removal techniques can be chosen based on specific circumstances to achieve the goal of reducing particulate matter emissions.

The biomass boiler combustion technology refers to the process of burning biomass fuel to release thermal energy. The following are common biomass boiler combustion technologies:
Firing Methods: Biomass boilers can utilize various firing 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 combustion; liquefaction combustion burns biomass fuel after converting it into liquid fuel.
Combustion Control: Biomass boilers require control systems for fuel supply, air supply, and the combustion process. By adjusting the ratio of fuel to air, the combustion temperature and efficiency are controlled to achieve 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 is used to support and burn the fuel, and the combustion chamber is designed to provide an appropriate combustion environment.
Combustion Equipment: To enhance the combustion efficiency and environmental performance of biomass boilers, combustion equipment such as pre-heaters, dust removers, and desulfurization devices are often fitted. Pre-heaters are used to increase the combustion temperature and thermal efficiency of the fuel, dust removers are for removing particulates from the flue gas, and desulfurization devices are for removing sulfur compounds from the flue gas.
Combustion Control and Monitoring: Biomass boilers require the installation of combustion and monitoring systems.

Slagging in biomass boiler furnaces is caused by the ash and other impurities in biomass fuel that accumulate in the furnace during the combustion process. The following are some operating factors that affect slagging in biomass boiler furnaces:
Fuel Characteristics: Different types of biomass fuels have varying ash content, ashing temperature, and ashing properties. Fuels with high ash content tend to produce large amounts of ash sludge, while those with lower ashing temperatures are prone to slagging inside the furnace.
Combustion Temperature: Combustion temperature is a significant factor affecting slagging in biomass boiler furnaces. Excessively low combustion temperatures can result in incomplete fuel combustion and insufficient melting of ash, increasing the likelihood of slagging.
Air Supply: Excessive air supply can lower the combustion temperature, increase the fuel's residence time in the furnace, and raise the risk of slagging. Conversely, insufficient air supply can also lead to incomplete fuel combustion, increasing the generation of ash and slag.
Furnace Chamber Design: The design of the furnace chamber significantly impacts the airflow and temperature distribution within it. A well-designed furnace chamber promotes complete combustion of fuel and the efficient expulsion of ash, reducing the likelihood of slagging.
Ash Cleaning System: The performance and operation of the ash cleaning system also affect the slagging condition inside the furnace. Regularly clean the ash and slag inside the furnace to maintain good ventilation.

To enhance the thermal efficiency of biomass boilers, consider the following aspects:
Optimize the combustion system: Reasonably adjust the combustion system of biomass boilers, including parameters such as combustion air volume, combustion temperature, and combustion time, to achieve complete combustion and utilization of the fuel. The adopted combustion technologies, such as fluidized bed combustion and gasification combustion, can enhance combustion efficiency.
Control Excess Air: Reasonably control the air supply during the combustion process of biomass boilers to prevent excessive air from entering the furnace, thereby reducing fuel oxidation and heat loss. Adjust the combustion air flow and air distribution to achieve optimal fuel-air mixture, enhancing combustion efficiency.
Enhanced waste heat recovery: The flue gas produced by biomass boiler combustion contains a significant amount of heat energy. This can be recovered and utilized through devices like cost-effective air preheaters and economizers, thereby improving the boiler's thermal efficiency.
Optimize boiler operating parameters: Reasonably adjust the operating parameters of biomass boilers, such as boiler water temperature and steam pressure, to enhance thermal efficiency. Adjust the boiler operating mode based on actual demand and load changes, avoiding over-supply or under-supply of heat, and improving energy utilization efficiency.
Regular Cleaning and Maintenance: Regularly clean and maintain biomass boilers to remove ash and slag from the furnace, ensuring heat exchange efficiency and reducing thermal resistance and losses.
Utilize equipment and materials: Selected biomass boiler equipment and materials, such as burners and heat exchangers, to enhance thermal conduction and heat exchange efficiency.
By integrating these measures, the thermal efficiency of biomass boilers can be effectively enhanced, achieving energy utilization.
Shandong Zhongjie Special Equipment, welcome customers to our factory for negotiations and cooperation.