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 like 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, and LNG tank containers, among other green energy equipment.
The emission characteristics of biomass fuel boiler flue gases mainly include the following aspects:
Particulate Emissions: During the combustion process of biomass fuel boilers, particulates are produced, including visible dust and fine particles. The amount of particulate emissions is related to fuel characteristics, combustion temperature, and combustion equipment, among other factors. Generally, the particulate emissions from biomass fuel boilers are lower than those from coal boilers, but they still require treatment through dust removal equipment.
(SO2) Emission: The content of SO2 in biomass fuel is generally low, hence the SO2 emissions from biomass fuel boilers are typically low. However, in certain cases, such as using waste as fuel, SO2 emissions may increase. Measures such as combustion control and desulfurization devices can be employed to control SO2 emissions.
NOx emissions: The NOx emissions of biomass fuel boilers are related to fuel characteristics, combustion temperature, and combustion equipment factors. Biomass fuel contains a higher nitrogen content, which generates a certain amount of NOx during combustion. To control NOx emissions, measures such as low-NOx combustion technology, combustion control, and denitrification devices can be adopted.
CO Emissions: CO emissions from biomass fuel boilers are typically low due to the relatively complete combustion process of biomass fuel. However, in cases of incomplete combustion or unstable burning, CO emissions may increase. To control CO emissions, it is necessary to ensure a thorough and stable combustion process.
Volatile Organic Compounds (VOCs) Emissions: The VOCs emissions from biomass fuel boilers are related to the fuel characteristics and combustion conditions. Some biomass fuels contain volatile organic compounds.

The biomass boiler body is typically composed of the following components, each serving a specific function:
Furnace Chamber: The furnace chamber is the area where biomass fuel is burned, serving as the space for combustion and heat exchange. The fuel within the chamber releases heat energy during the combustion process, while flue gases exchange heat with water through the furnace chamber.
Chimney Flue: The flue is a passage for the flow of flue gas, guiding the smoke from the combustion chamber to the chimney for排放. The flue gas within exchanges heat with the boiler's water, transferring heat from the gas to the water to enhance thermal efficiency.
Boiler Drum: The boiler drum is the main component that holds water and steam, where water is heated to transform into steam. The drum is equipped with a water level control device to regulate water levels, ensuring the safe operation of the boiler.
Grate: A grate is a device used to support and burn biomass fuel, functioning to evenly distribute the fuel within the furnace chamber and provide air supply to promote the combustion process.
Superheater: A superheater is a device that heats the saturated steam in a boiler, increasing its temperature and pressure. It accomplishes this by transferring heat from the flue gases to the steam through heat exchange between them.
Condenser: A condenser is a device used to condense steam into water, releasing heat from the steam. By exchanging heat with a cooling medium (such as cold water), a condenser converts the heat from the steam into thermal energy, enhancing thermal efficiency.
Chimney: A chimney is a passage that releases flue gases into the atmosphere, serving as a ventilation system.

A biomass boiler economizer is a device used to recover waste heat from flue gas, which serves to enhance the boiler's thermal efficiency and reduce energy waste. The economizer achieves this by transferring heat from the flue gas to the boiler's incoming water, preheating it and thereby reducing fuel consumption.
According to their different structures and working principles, biomass boiler economizers can be categorized into the following types:
Tubular Economizer: A common type of economizer, consisting of a series of parallel pipes. Flue gas flows over the outside of the pipes, while incoming water circulates inside the pipes, recovering waste heat from the flue gas through heat transfer across the pipe walls.
Finned Economizer: The finned economizer is an improved version of the tubular economizer, featuring fins that increase the heat transfer area and efficiency. It is suitable for high flue gas temperatures.
Direct-Flow Economizer: A direct-flow economizer is a structure that separates flue gas and feedwater, achieving cross heat transfer between the two through multiple parallel flue gas and feedwater channels, thereby enhancing heat transfer efficiency.
Recirculation refers to reintroducing the waste heat from the economizer back into the boiler combustion area to enhance combustion temperature and thermal efficiency. It can be controlled by adjusting the recirculation ratio, typically during the boiler operation as needed. Recirculation can increase combustion temperature, improve combustion completeness, and reduce pollutants.

Adjusting the combustion of biomass boilers can be done through the following steps:
Establish combustion parameters: Determine appropriate combustion parameters based on the design of the biomass boiler and the characteristics of the fuel, including combustion temperature, oxygen supply, and fuel supply rate.
Adjust combustion temperature: Adjust the combustion temperature based on the fuel characteristics and combustion requirements. Excessive combustion temperature may lead to overburning of fuel and energy waste, while insufficient combustion temperature may result in incomplete combustion and increased emissions.
Control oxygen supply: Adjust the oxygen supply based on the oxygen content during the combustion process. Excessive oxygen supply may lead to incomplete fuel combustion and energy waste, while insufficient oxygen supply may result in incomplete combustion and increased emissions.
Adjust fuel supply rate: Adjust the fuel supply rate based on thermal load and fuel characteristics. Excessive fuel supply rate may lead to overburning and energy waste, while an insufficient fuel supply rate may result in incomplete combustion and inadequate heating.
Monitoring and Adjustment: By monitoring critical parameters during the combustion process, such as combustion temperature, oxygen content, and flue gas composition, adjust combustion parameters promptly to ensure stability and efficiency.
Be mindful that adjusting the combustion of biomass boilers requires consideration of the specific kettle
Zhongjie Special Equipment adheres to the great vision of "realizing employees' dreams, creating customer value, and striving for the prosperity and strength of our motherland," wholeheartedly committed to the development of green energy equipment. We dedicate high-value products and services to society!