Shandong Zhongjie Special Equipment specializes in: fuel (gas) boilers, organic heat carrier boilers, biomass boilers, waste heat recovery boilers, and other boiler products; vacuum insulated cryogenic pressure vessels such as LNG tanks, oxygen/nitrogen/argon tanks, and CO2 tanks; pressure vessel products including denitrification engineering equipment, heat storage and energy storage equipment, and complete chemical equipment sets; 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.
To prevent high-temperature corrosion issues in biomass boilers, the following measures can be taken:
Select suitable materials: Choose metal materials with good corrosion resistance, such as stainless steel and heat-resistant steel, for boiler components. These materials possess excellent corrosion resistance and can maintain stability in high-temperature and corrosive environments.
Control combustion conditions: Reasonably control parameters such as the temperature, oxygen content, and combustion rate of biomass, to avoid excessive combustion temperature and oxygen levels, thereby reducing corrosion.
Pre-treatment fuel prior to combustion: Pre-treat biomass fuel through processes such as drying, screening, and decontamination to reduce ash and salt content in the fuel, thereby minimizing the risk of corrosion.
Regulate acidic substances in flue gas: By adding corrosion inhibitors or flue gas treatment units, control the acidic substance content in flue gas, and reduce its corrosive effect on metal surfaces.
Regular Cleaning and Maintenance: Regularly clean the boiler interior of accumulated dust and dirt to maintain its cleanliness. During the cleaning process, use appropriate cleaning agents and tools to remove internal dirt, preventing corrosion from occurring.
Regular inspections and maintenance: Regularly inspect and maintain biomass boilers to promptly identify and address corrosion issues. Delegate maintenance personnel for regular inspections and maintenance tasks.

Biomass boilers possess the following characteristics:
Fuel adaptable: Biomass boilers can utilize various biomass fuels such as wood chips, straw, etc., demonstrating strong fuel adaptability.
High combustion efficiency: The biomass boiler's combustion technology and equipment enable a combustion process that enhances efficiency.
Eco-friendly and Low Carbon: The carbon dioxide produced during biomass combustion can be absorbed by plants, forming a cycle that reduces the burden on the atmosphere. Additionally, emissions and pollutants during biomass combustion are relatively low, resulting in minimal environmental impact.
Heat Recovery Utilization: Biomass boilers transfer the thermal energy generated by combustion to water or other working fluids through heat exchangers, achieving heat recovery and utilization, and improving energy efficiency.
Versatility: Biomass boilers are not only used for heating but also for hot water supply and industrial heating in various applications.
The efficiency of biomass boilers is influenced by various factors, including fuel quality, the design and adjustment of combustion equipment, and the effectiveness of flue gas purification systems. Generally, the efficiency of biomass boilers can reach over 70%, with some models achieving over 80% efficiency. Improving efficiency can be achieved through optimizing the combustion process, enhancing the heat transfer efficiency of heat exchangers, and reducing flue gas emissions losses. Moreover, proper operation and maintenance play a crucial role in enhancing efficiency.

To prevent and alleviate corrosion issues in biomass boilers, the following methods can be adopted:
Regular Cleaning and Maintenance: Regularly clean the boiler interior to remove accumulated dust and dirt, maintaining its cleanliness. During the cleaning process, use appropriate cleaning agents and tools to remove dirt inside the boiler and prevent corrosion from occurring.
Regulate Water Quality: The water quality of biomass boilers significantly affects corrosion. Regularly test and adjust the chemical composition of the boiler water to maintain appropriate levels of pH, hardness, and oxygen content. Utilize water treatment equipment, such as water softeners and deaerators, to enhance water quality.
Prevent Oxygen Corrosion: Oxygen corrosion is one of the common forms of corrosion in biomass boilers. It can be mitigated by installing an oxygen scavenger in the boiler's water intake pipeline to remove oxygen from the water, thereby reducing the occurrence of oxygen corrosion. Additionally, chemical measures such as corrosion inhibitors can also be employed to prevent oxygen corrosion.
Regulate Combustion Process: High temperatures during combustion and acidic substances in the flue gas can also cause corrosion. To regulate the combustion process, ensure that the combustion temperature and acidic substances in the flue gas are within the appropriate range. This can be achieved by adjusting the combustion air volume, fuel supply, and fuel distribution.
Prevent Local Corrosion: Certain parts of boilers, such as the furnace and flue, are prone to corrosion. Reinforcement or protective coatings made from corrosion-resistant materials can be applied to these areas, extending their service life.
Regular inspections and maintenance: Regularly inspect and maintain biomass boilers to promptly identify and address corrosion issues. Delegate maintenance personnel for regular inspections and maintenance tasks.

In terms of biomass boiler technology, the following three issues need to be addressed with emphasis:
Improved Combustion Efficiency: Biomass fuel has characteristics different from traditional fossil fuels, which tend to produce particulates like straw and wood chips during combustion, leading to lower efficiency. Therefore, it is necessary to develop and improve combustion systems, optimize the combustion process, enhance efficiency, and reduce energy waste.
High-Temperature Corrosion Issues: Ash and elements like chlorine in biomass fuels can easily cause corrosion at high temperatures, damaging the metal components of boilers. To address high-temperature corrosion, it is necessary to develop and apply corrosion-resistant materials, control combustion conditions, and minimize corrosion occurrences.
Ash treatment and utilization: Biomass fuel combustion generates a large amount of ash, including waste, ash content, and unburnt materials. The treatment and disposal of ash is a critical issue, requiring the development and application of ash treatment technologies, including ash recycling, resource utilization, and chemical treatment.
By addressing these three issues, the combustion efficiency of biomass boilers can be further enhanced, corrosion risks reduced, and effective handling and utilization of ash and slag achieved, promoting the sustainable development of biomass energy.
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 welding technology for temperature and pressure vessels, biomass boiler emission reduction, and waste heat utilization, have successively been selected 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. The technical team of our company, in collaboration with Professor Yajiang Li of Shandong University, has developed deep cryogenic container processing technology using the international plasma arc + filler wire tungsten inert gas arc welding (PAW-GTAW) technology. After the provincial-level scientific and technological achievement evaluation, the 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!