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 container, pressure vessel, central air conditioning, engineering installation, international trade, and Internet of Things. It has three manufacturing 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, it was identified as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
The phenomenon of damaged economizer tubes in biomass boilers may include the following situations:
Pipe Corrosion: Flue gas from biomass combustion contains certain acidic substances, which may lead to corrosion of economizer pipes. Long-term corrosion can result in the thinning of pipe wall thickness, the formation of holes and cracks.
Pipe blockage: During biomass combustion, flue gas may contain some ash and particulate matter, which may settle and accumulate in the economizer pipes, leading to blockage. Blockage can affect the flow of flue gas and reduce heat exchange efficiency.
Pipe fatigue: The fluctuating operating temperatures and pressures in biomass boilers can lead to thermal expansion and contraction over time, resulting in fatigue damage to the economizer piping, such as cracking and deformation.
In response to the aforementioned issues, the following solutions can be adopted:
Enhanced Corrosion Protection: Corrosion treatment can be applied internally within the economizer pipes, such as by applying a corrosion-resistant coating or using corrosion-resistant materials for pipe construction, to minimize corrosion occurrence.
Regular cleaning and maintenance: Regularly clean and maintain the economizer to prevent the accumulation of ash and particles inside the pipes, which can lead to blockages. Methods such as mechanical cleaning and water flushing can be employed.
Enhance Monitoring and Inspection: Conduct regular inspections on economizers, including pipe thickness measurements and crack detection, to identify issues promptly and implement repair measures.
Optimize Operating Parameters: Reasonably adjust the operating parameters of the biomass boiler, such as combustion temperature and air volume, to minimize damage to the economizer.

The causes of slagging in biomass boilers can be attributed to the following aspects:
Fuel Characteristics: Ash content and ashing properties in biomass fuel are the primary factors causing slagging. Ash is the non-combustible inorganic matter in biomass fuel, which, upon combustion, deposits in the furnace chamber and forms slag. Fuel with high ash content tends to produce a large amount of slag, while fuel with low ashing temperatures is prone to slagging in the furnace.
Combustion Temperature: Combustion temperature is a significant factor affecting biomass boiler slagging. Excessively low combustion temperatures 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 combustion of fuel, 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 residence time in the furnace, and also increase the likelihood of fouling.
Furnace Design: The design of the furnace significantly impacts the combustion process and coking conditions. The air flow and temperature distribution within the furnace affect fuel combustion and slag ejection. An unreasonable furnace design can lead to extended fuel residence time inside the furnace, increasing the risk of coking.
Ash Cleaning System: The performance and operation of the ash cleaning system also affect the coking condition of biomass boilers. Regularly cleaning the ash inside the furnace.

Biomass boilers offer several advantages:
Renewable Energy: 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, helping to reduce greenhouse gas emissions and being more environmentally friendly.
Diverse Fuel Sources: Biomass fuel sources are widespread, including wood, straw, waste crops, food scraps, and urban solid waste. This diversity of fuel sources provides flexibility and adaptability to biomass boilers, enabling the use of waste and by-products from plants and animals.
Environmental Friendliness: The carbon dioxide emitted during the combustion of biomass boilers 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, causing less environmental impact.
Energy Security: Biomass, as a native 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, which can reduce energy costs. Moreover, the technology and equipment for biomass boilers are continuously evolving and maturing, making them more economically competitive.
Waste Utilization: Biomass boilers can utilize agricultural by-products such as crop straw, wood waste, effectively utilizing waste resources and reducing resource waste.
In summary, biomass boilers offer advantages such as renewable energy, diverse fuel sources, environmental friendliness, energy security, cost-effectiveness, and waste utilization, making them a sustainable energy solution.

Advantages of biomass fuel:
Renewable Energy: Biomass fuel is a renewable energy source with a wide range of sources, including wood, straw, and waste, making its supply more sustainable compared to fossil fuels.
Eco-friendly & Low Carbon: The combustion of biomass fuel releases approximately the same amount of carbon dioxide as it absorbs during its growth process, resulting in almost no net increase in CO2 emissions, which has a positive effect on mitigating climate change.
Reduce Waste Disposal: Biomass fuel can utilize agricultural straw, wood waste, and other waste materials, thereby reducing waste disposal and emission issues.
High energy utilization efficiency: Biomass fuel has a high calorific value and high combustion efficiency, which can be effectively converted into thermal or electrical energy, providing a reliable energy supply.
Use of biomass boilers:
Heating Systems: Biomass boilers can be used in heating systems such as heating, warm water, and steam supply, widely applied in residential areas, industrial factories, and commercial buildings, etc.
Industrial Production: Biomass boilers can provide thermal energy for industrial production, such as in the pulp and paper, food processing, and chemical industries, meeting the thermal energy needs throughout the production process.
Power Generation System: Biomass boilers can be combined with steam turbine generator sets to convert the thermal energy produced by combustion into electrical power for power supply.
Hot Water Supply: Biomass boilers can be used for hot water supply, such as for swimming pools, hot springs, hotels, and other similar facilities.
Agricultural Utilization: Biomass boilers can utilize agricultural waste such as straw from crops to address energy issues in rural areas, providing the required heat energy for agricultural production.
The use of biomass boilers offers environmental friendliness, sustainability, and efficiency, effectively utilizing biomass resources, reducing dependence on fossil fuels, lowering carbon emissions, and promoting sustainable development.
Our company places great emphasis on technological innovation and R&D, boasting a city-level enterprise technology center in Heze City. We have established testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, and more. Equipped with over 600 pieces 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, our key products such as welding technology for temperature and pressure vessels, biomass boiler emissions 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 key projects, and Heze City innovative excellence projects. We have accumulated a total of 27 authorized utility models, 16 authorized inventions, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. The 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 provincial-level scientific and technological achievement evaluation, our technology level has reached international standards in the field of deep cryogenic container manufacturing. Choose Zhongjie Special Equipment, let's join hands to create brilliance together!