Shandong Zhongjie Special Equipment's main products include: fuel (gas) boilers, organic heat carrier boilers, biomass boilers, waste heat boilers, and other boiler products; vacuum insulation deep-freeze pressure vessels such as LNG storage tanks, oxygen-nitrogen-argon storage tanks, CO2 storage tanks; pressure vessel products like denitrification engineering equipment, heat storage and energy storage equipment, complete chemical equipment; and central air conditioning and ventilation equipment such as ground (water) source heat pumps, air source units, water-cooled screw units, and air-cooled modules. Planned products include large-scale energy centers, LNG transport vehicles, LNG tank containers, and other green energy equipment.
Biomass boilers feature the following characteristics:
Renewable Energy: The fuel used in biomass boilers comes from organic matter such as plants, animals, and microorganisms, making it a renewable energy source. Compared to traditional fossil fuels, biomass fuel has lower carbon emissions and a smaller environmental impact.
Diverse Fuel Sources: Biomass fuel sources are widespread, including wood, straw, waste crops, food scraps, and municipal solid waste. This diversity in fuel sources allows biomass boilers to be flexible and adaptable, utilizing waste and by-products from plants and animals.
Environmental friendliness: The carbon dioxide produced during the combustion of biomass can be absorbed by plants, forming a cycle and reducing air pollution. Additionally, the emissions and ash produced during the combustion process of biomass boilers are relatively low, resulting in minimal environmental impact.
Energy Security: Biomass, as a local renewable energy source, can reduce dependence on imported energy and enhance energy security. In regions with scarce resources, the use of biomass boilers can provide a reliable energy supply.
Economic Efficiency: Biomass fuel is relatively cost-effective, helping to reduce energy costs. Moreover, the technology and equipment for biomass boilers are continuously evolving and maturing, making them more economically competitive.
In summary, biomass boilers feature renewable energy, diverse fuel sources, environmental friendliness, energy security, and cost-effectiveness, making them a crucial component in the sustainable energy sector.

Many factors influence the thermal efficiency of biomass boilers; the following is an analysis of some common factors:
Fuel Quality: The quality of biomass fuel directly affects the combustion process and thermal efficiency. Characteristics such as fuel moisture, ash content, and volatile content can impact the stability and efficiency of combustion. The quantity of fuel can enhance combustion efficiency and reduce energy loss.
Combustion System: The design and operational status of the combustion system significantly impact thermal efficiency. A well-designed combustion system ensures complete combustion and utilization of fuel. Adjusting parameters such as combustion air volume, combustion temperature, and combustion time can optimize the combustion process and enhance thermal efficiency.
Excess Air: Excess air can lead to incomplete fuel combustion and energy waste. Properly controlling the air supply during the combustion process and preventing excess air from entering the furnace can improve combustion efficiency.
Temperature Control: Proper temperature control of the boiler significantly impacts thermal efficiency. Reasonably controlling parameters such as water temperature and steam temperature can prevent excessive or low temperatures, thereby enhancing thermal efficiency.
Cleaning and Maintenance: Regularly clean and maintain boiler equipment, including the ash and soot inside the furnace, to maintain the efficiency of heat exchange and reduce thermal resistance and loss.
Flue Gas Heat Recovery: By utilizing heat recovery devices such as economical air preheaters and economizers, the residual heat in flue gas can be reclaimed, thereby enhancing the boiler's thermal efficiency.
Boiler design and equipment selection: Rational boiler design and selection of equipment, such as burners, high

Biomass boilers can be categorized according to different classification criteria. The following are some common methods of classification:
By method of combustion:
Direct Combustion Boiler: Directly burns biomass fuel to produce heat energy.
Gasification boiler: Converts biomass fuel into combustible gas before combustion.
Pyrolysis Boiler: Converts biomass fuel through pyrolysis to produce combustible gas and solid carbon, which is then burned.
Categorized by fuel type:
Wood biomass boiler: Utilizes wood chips, wood shavings, cassava residue, and other wood-based fuels.
Crop biomass boiler: Utilizes straw, rice husks, wheat straw, and other crop residues as fuel.
Industrial waste biomass boiler: Utilizes industrial waste materials such as sawdust and pulp sludge as fuel.
By boiler type:
Water-tube biomass boiler: Heat is transferred through water pipes arranged inside the combustion chamber.
Fire-tube biomass boiler: The combustion chamber is equipped with fire tubes, which transfer heat energy through the tubes.
Hybrid biomass boiler: Combines the features of water-tube and fire-tube designs, featuring both water tubes and fire tubes.
By power scale classification:
Small biomass boiler: Power typically ranges from 1 to 10 MW, suitable for small buildings and rural heating.
Medium-sized biomass boiler: Power typically ranges from 10 to 50 MW, suitable for medium-sized industrial factories, large buildings, etc.
Large biomass boiler: Power over 50MW, suitable for large industrial buildings and centralized heating.
These categorization methods merely provide a general overview of biomass boilers; in reality, there are more specific subcategories and combinations. Different types of biomass boilers may vary in application scenarios and technical characteristics.

The reasons for coking in biomass boilers can be attributed to the following aspects:
Fuel Characteristics: Ash content and ashing properties in biomass fuel are the primary factors leading to coking. Ash is the non-combustible inorganic matter in biomass fuel. When burned, ash deposits in the furnace chamber, forming slag. Fuel with high ash content tends to produce a large amount of slag, while fuel with lower ashing temperatures is prone to coking in the furnace.
Combustion Temperature: Combustion temperature is a significant factor affecting biomass boiler slagging. An excessively low combustion temperature can lead to incomplete fuel combustion and insufficient melting of ash, increasing the likelihood of slagging.
Air Supply: Insufficient or excessive air supply can affect the combustion process and fouling of biomass boilers. Too little air supply leads to incomplete fuel combustion, producing a large amount of solid residue and increasing the risk of fouling. On the other hand, too much air supply can lower the combustion temperature, extend the fuel's stay in the furnace, and also increase the likelihood of fouling.
Furnace Design: The design of the furnace chamber significantly impacts the combustion process and coking conditions. The air flow and temperature distribution within the furnace chamber affect fuel combustion and ash discharge. An不合理 furnace design can lead to prolonged fuel residence time in the furnace, increasing the risk of coking.
Ash Cleaning System: The performance and operation of the ash cleaning system also affect the coking situation of biomass boilers. Regularly cleaning the ash inside the furnace.
Our company places great emphasis on technological innovation and R&D, boasting 1 municipal-level enterprise technology center in Heze City. We have established testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, etc. We are equipped with over 600 pieces of various instruments and 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 and technologies 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, key projects in Shandong Province, and Heze City innovation and excellence projects. We have cumulatively obtained 27 authorized utility model patents, 16 authorized invention patents, 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 internationally recognized plasma arc + wire filling tungsten inert gas arc welding (PAW-GTAW) technology. After being appraised as a provincial-level scientific and technological achievement, our technology level has reached an international standard in the field of deep cryogenic container manufacturing. Choose Zhongjie Special Equipment, and let's create brilliance together!