Shandong Zhongjie Special Equipment Co., Ltd. (formerly Heze Boiler Factory Co., Ltd.) was established in 2001, located at No. 2218 Jinnan Road, Development Zone, Heze City. With a registered capital of 50 million yuan and total assets of 500 million yuan, the company has 7 business centers: boiler, deep-freeze containers, pressure vessels, central air conditioning, engineering installation, international trade, and Internet of Things. It has three factory sites on Jinnan Road, East Changjiang Road, and Bohai Road, covering a total area of 200,000 square meters, with the main workshop spanning 83,000 square meters. It currently employs 710 staff, including 247 engineers and technicians, and 82 intermediate-level technicians. In December 2016, it was recognized as a "High-tech Enterprise" by the Science and Technology Department. In June 2021, it was identified as a "Specialized and New Enterprise in Shandong Province" by the Ministry of Industry and Information Technology. In June 2022, it was recognized as a "Gazelle Enterprise in Shandong Province" and in August 2022, as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
A biomass boiler economizer is a device used to recover waste heat from flue gas, serving to enhance the boiler's thermal efficiency and reduce energy waste. The economizer accomplishes this by transferring heat from the flue gas to the boiler's incoming water, preheating it and thereby reducing fuel consumption.
According to their structure and working principle, biomass boiler economizers can be classified into the following categories:
Tubular Economizer: A common type of economizer, consisting of a series of parallel pipes. Flue gas flows over the outside of the pipes, while feedwater circulates inside them. Heat transfer through the pipe walls enables the recovery of waste heat from the flue gas.
Finned Economizer: The finned economizer is an improvement on the tubular economizer, featuring fins that increase the heat transfer area and efficiency. It is suitable for higher flue gas temperatures.
Direct-Flow Economizer: A direct-flow economizer is a structure that separates flue gas and incoming water, achieving cross heat transfer between the two through multiple parallel flue gas and water channels, thereby enhancing heat transfer efficiency.
Recirculation refers to the process of reintroducing the waste heat from the economizer back into the boiler combustion zone to enhance combustion temperature and thermal efficiency. Recirculation can be controlled by adjusting the recirculation ratio, which is typically modified during the boiler operation as needed. Recirculation can increase combustion temperature, improve combustion completeness, and reduce pollutants.

Several possible reasons for the black smoke produced by biomass boiler combustion include:
Incomplete combustion: Inadequate oxygen supply or insufficient combustion temperature of biomass fuel can lead to incomplete combustion, producing a large amount of smoke and black smoke. This may be caused by poor combustion chamber ventilation, poor fuel quality, or incorrect setting of combustion parameters.
High moisture content: Excessive water content in biomass fuel can lead to the evaporation of a large amount of steam during combustion, lowering the combustion temperature and thus affecting the combustion efficiency, resulting in the production of black smoke.
Fuel Quality Issues: If biomass fuel contains impurities, ash, or uneven moisture, it can affect the combustion process, leading to incomplete combustion and the production of black smoke.
Combustion Equipment Issues: Faults or wear in the combustion equipment of biomass boilers, such as slagging in the combustion chamber or clogging of the burner, can affect combustion efficiency and lead to the production of black smoke.
To reduce the production of black smoke, the following measures can be taken:
Ensure adequate oxygen supply: Adjust the ventilation system of the combustion equipment to ensure sufficient oxygen supply, enhance combustion efficiency, and reduce the production of black smoke.
Regulate combustion temperature: Adjust combustion parameters such as temperature and duration to ensure complete fuel combustion and minimize black smoke emission.
Optimize fuel quality: Select biomass fuel in the right quantity, ensure uniformity in dryness and quality, reduce moisture content and impurities, and enhance combustion efficiency.
Regular Maintenance: Perform regular maintenance on biomass boilers to clean the combustion chamber, burners, and other components, ensuring the equipment operates smoothly and reduces the production of black smoke.
Install Pollutant Control Equipment: As required, install flue gas purification equipment such as dust collectors and desulfurization devices, effectively removing particles generated during the combustion process.

Biomass boiler pellet fuel is a common form of biomass fuel, also known as biomass pellets or wood pellets. It is a small granular fuel produced by processing biomass raw materials (such as sawdust, straw, wheat straw, fruit shells, etc.) through processes like crushing, drying, and pressing.
Biomass boiler pellet fuel features the following characteristics:
High Energy Density: Biomass pellets have a high energy density, allowing for more energy to be stored in a relatively smaller volume, making transportation and storage more convenient.
Easily Combustible: Biomass pellets are uniform in shape and size, ensuring a stable combustion process, easy parameter control, and improved combustion efficiency.
Low humidity and low ash content: The biomass pellet fuel is dried and processed, resulting in low humidity and relatively low ash content. This reduces water evaporation and ash residue during combustion, improving combustion efficiency and reducing pollutant emissions.
Renewable and Eco-friendly: Biomass pellet fuel is a renewable energy source that can be recycled through the regeneration process. The carbon dioxide released during combustion can be absorbed by the biomass for regeneration, creating a cycle with minimal environmental impact.
Wide combustion adaptability: Biomass pellet fuel is suitable for biomass boilers, with strong combustion adaptability. Different types and specifications of pellet fuel can be selected according to actual conditions to meet the needs of various boilers.
Biomass pellets are widely used in biomass boilers, representing a clean and renewable energy source that is crucial for reducing carbon emissions and protecting the environment.

Utilizing biomass boilers holds significant importance for energy conservation and emission reduction:
Reducing Carbon Emissions: The fuel used in biomass boilers comes from organic materials like plants, animals, and microorganisms. The carbon dioxide released during combustion can be absorbed by plants, forming a cycle. Compared to traditional fossil fuels, biomass fuel emits less carbon, effectively reducing greenhouse gas emissions, which is significant in addressing climate change.
Reduce Energy Consumption: Biomass boilers utilize combustion technology and a heat recovery system to enhance energy utilization efficiency and minimize waste. By conserving energy, costs can be reduced and the benefits of energy use improved.
Reducing Dependency on Fossil Fuels: Biomass, as a domestic renewable energy source, can decrease reliance on imported fossil fuels and enhance energy security. In regions with scarce resources, the use of biomass boilers can provide a reliable energy supply, reducing dependence on external energy sources.
Promoting agricultural and forestry development: The fuel for biomass boilers primarily comes from agricultural by-products like crop straw and wood, fostering the sustainable development of agriculture and forestry. By effectively utilizing agricultural and forestry waste, resource waste can be reduced and the comprehensive benefits of the agricultural and forestry industries can be enhanced.
Promote Environmental Protection: Biomass boilers emit relatively low levels of pollutants and ash during combustion, resulting in minimal environmental impact. Additionally, the use of biomass boilers helps reduce the exploitation and destruction of natural resources, safeguarding the ecological environment.
In summary, utilizing biomass boilers is of significant importance for energy conservation and emission reduction.
Zhongjie Special Equipment adheres to the grand vision of "Realizing employees' dreams, creating value for customers, and striving for the prosperity and strength of our motherland," and is dedicated to the development of the green energy equipment industry. We offer society high-quality products and services at competitive prices!