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 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 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 appropriate materials: Choose corrosion-resistant metal materials for boiler components, such as stainless steel and heat-resistant steel. These materials offer 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 combustion to avoid excessive temperatures and oxygen levels, thereby reducing corrosion.
Pre-treatment Fuel Before Combustion: Pre-treat biomass fuel, such as drying, screening, and decontamination, to reduce ash and salt content in the fuel, and lower the risk of corrosion.
Regulate Acidic Substances in Flue Gas: By adding corrosion inhibitors or flue gas treatment equipment, 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 to remove accumulated dust and dirt, maintaining its cleanliness. During the cleaning process, use appropriate cleaning agents and tools to remove dirt from the interior, preventing corrosion from occurring.
Regular inspections and maintenance: Regularly inspect and maintain biomass boilers to promptly identify and address corrosion issues. Entrust maintenance personnel to conduct regular inspections and maintenance work.

Biomass boilers possess the following characteristics:
Fuel versatile: Biomass boilers are capable of utilizing various biomass fuels, such as sawdust, straw, etc., featuring strong adaptability to fuel types.
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 heat energy generated from combustion to water or other working fluids through heat exchangers, achieving heat recovery and utilization to improve 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. Additionally, proper operation and maintenance play a crucial role in enhancing efficiency.

To prevent and mitigate the corrosion issues of biomass boilers, the following methods can be adopted:
Regular Cleaning and Maintenance: Regularly clean the boiler's 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.
Regulate Water Quality: The quality of water in biomass boilers significantly affects corrosion. Regularly test and adjust the chemical composition of the boiler water to maintain the pH level, hardness, and oxygen content within appropriate ranges. Water treatment equipment, such as water softeners and oxygen removers, can be used to improve 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 remover in the boiler's feedwater pipes to remove oxygen from the water, thereby reducing the occurrence of oxygen corrosion. Additionally, chemical measures such as corrosion inhibitors can be employed to prevent oxygen corrosion.
Control the combustion process: High temperatures during combustion and acidic substances in the flue gas can also cause corrosion. To control the combustion process, ensure that the combustion temperature and acidic substances in the flue gas are within the appropriate range. The combustion process can be controlled by adjusting the combustion air volume, fuel supply, and fuel distribution.
Prevent Local Corrosion: Some parts of the boiler, such as the furnace and flue, are prone to corrosion. Reinforcement or coating with corrosion-resistant materials can be applied to these areas to extend their service life.
Regular inspections and maintenance: Regularly inspect and maintain biomass boilers to promptly identify and address corrosion issues. You can entrust maintenance personnel to conduct regular inspections and maintenance work.

In the technical aspect of biomass boilers, the following three issues need to be addressed with emphasis:
Enhanced Combustion Efficiency: Biomass fuel has characteristics different from traditional fossil fuels, which tend to produce particulates like straw and wood shavings 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 Issue: Ash and elements like chlorine in biomass fuel tend to 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 reduce the occurrence of corrosion.
Ash and slag management and utilization: Biomass fuel combustion generates a large amount of ash and slag, including waste, ash content, and unburnt materials. The handling and disposal of ash and slag is a critical issue, requiring the development and application of ash and slag management technologies, including recycling, resource utilization, and chemical treatment.
By addressing these three issues, the combustion efficiency of biomass boilers can be further improved, corrosion risks reduced, and the effective treatment 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 tests, welding tests, hydrostatic tests, etc. We have over 600 various instruments and equipment, including CNC machine tools, X-ray flaw detectors, digital ultrasonic flaw detectors, mechanical property test machines, chemical analyzers, spectrometers, tensile testing machines, plasma welding machines, and more. The key products we have developed, such as temperature and pressure vessel welding, 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 Province key projects, and Heze City innovative and excellent projects. We have accumulated 27 authorized utility models, 16 authorized inventions, 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 international plasma arc + filler wire argon arc welding (PAW-GTAW) technology. This technology has been appraised as reaching international standards in the field of deep cryogenic container manufacturing. Choose Zhongjietech, and let's create brilliance together!