Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) was established in 2001, located at No. 2218 Jinnan Road, Economic and Technological Development Zone, Heze City. With a registered capital of 50 million yuan and total assets of 500 million yuan, the company operates 7 major business centers: boilers, 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. The company currently employs 710 people, 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.
The reasons for slagging in biomass boilers can be attributed to the following aspects:
Fuel Characteristics: Ash content and ashing characteristics in biomass fuel are the primary factors causing slagging. Ash is the non-combustible inorganic substance in biomass fuel. During combustion, ash 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 temperature is prone to slagging inside the furnace.
Combustion Temperature: Combustion temperature is a critical factor affecting biomass boiler fouling. Excessively low combustion temperatures can lead to incomplete fuel combustion and insufficient melting of ash, increasing the likelihood of fouling.
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, generating a large amount of solid residue, and increases 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 chamber significantly impacts the combustion process and coking conditions. The air flow and temperature distribution within the chamber affect fuel combustion and slag ejection. An impractical furnace design can lead to excessive fuel residence time, increasing the risk of coking.
Ash Cleaning System: The performance and operation of the ash cleaning system also affect the slagging condition of biomass boilers. Regularly cleaning the ash inside the furnace.

Biomass boilers are prone to corrosion at high temperatures, primarily due to the following reasons:
Fuel Composition: Biomass fuel contains certain amounts of ash and elements such as chlorine, which, during combustion, form corrosive substances under high temperatures, such as chlorides and salts. These substances react with the metal surface, leading to metal corrosion.
Combustion Conditions: Factors such as combustion temperature, oxygen content, and combustion rate during biomass combustion can affect corrosion. High temperatures, excessive oxygen, and rapid combustion rates can accelerate the occurrence of corrosion.
Smoke Composition: The smoke produced from biomass combustion contains certain acidic substances, such as... These acidic substances can react with the metal surface, causing corrosion.
Flue Gas Condensation: During the flue gas condensation process of biomass boilers, water vapor in the flue gas condenses into liquid water, forming acidic condensate. This acidic condensate comes into contact with the metal surface, causing corrosion.
Metal Material Selection: The metal materials used in biomass boilers also affect their resistance to corrosion. Different metal materials exhibit varying corrosion resistance to different corrosive mediums.
In summary, the causes of high-temperature corrosion in biomass boilers primarily include fuel composition, combustion conditions, flue gas composition, flue gas condensation, and the selection of metal materials. To alleviate corrosion issues,

Many factors can affect the thermal efficiency of biomass boilers; here are some common factors analyzed:
Fuel Quality: The quality of biomass fuel directly affects the combustion process and thermal efficiency. Characteristics such as moisture content, ash content, and volatile matter content of the fuel can influence the stability and efficiency of combustion. Adding more fuel can increase 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, temperature, and duration can optimize the combustion process and enhance thermal efficiency.
Excess Air: Excess air leads 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 is crucial for thermal efficiency. Reasonably controlling parameters such as water temperature and steam temperature can avoid excessive or low temperatures, thereby improving thermal efficiency.
Cleaning and Maintenance: Regularly clean and maintain boiler equipment, including the ash and soot in the furnace chamber, to maintain the efficiency of heat exchange and reduce thermal resistance and loss.
Flue Gas Heat Recovery: By utilizing heat recovery systems such as economical air preheaters and economizers, the waste heat in flue gas can be recovered and utilized, thereby enhancing the boiler's thermal efficiency.
Boiler design and equipment selection: Reasonable boiler design and selected equipment, such as burners, high

A biomass boiler safety valve is a device used to ensure the safety of the boiler system. Its primary function is to automatically open and release excessive pressure when the internal pressure of the boiler exceeds the set value, preventing the boiler from exploding or causing other safety accidents.
Biomass boiler safety valves typically consist of a valve body, cover, spring, valve core, and seals. When the internal pressure of the boiler exceeds the set value, the spring is subjected to pressure, pushing the valve core upwards to allow pressure to escape through the valve body. Once the pressure drops below the set value, the spring re-closes the valve core, preventing further pressure release.
The set pressure of safety valves is typically determined by the design pressure of the boiler and the usage requirements. They should be selected and installed according to relevant standards and specifications, and be inspected and maintained regularly to ensure their proper operation and reliability.
The presence of a biomass boiler safety valve effectively safeguards the boiler system's safety, preventing hazardous situations caused by excessive pressure. It is one of the crucial safety devices in the biomass boiler system.
Our company attaches great importance to technological innovation and research and development, with 1 municipal enterprise technology center in Heze City. We have established testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, etc., and 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 welding of temperature and pressure vessels, emissions reduction from biomass boilers, and waste heat utilization, have successively entered multiple Shandong Provincial Department of Industry and Information Technology science and technology innovation projects, Shandong Province key projects, and Heze City innovation and excellence projects, etc. 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. The technical team of our company, in collaboration with Professor Yajiang Li of Shandong University, has developed deep cryogenic container processing technology, which utilizes the international plasma arc + filling wire tungsten inert gas arc welding (PAW-GTAW) technology. After being appraised as a provincial scientific and technological achievement, 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!