How to extend the service life of biomass pellet hot air furnace through automated ash cleaning system or high temperature resistant and corrosion resistant materials?
Publish Time: 2025-05-07
In the field of energy utilization, biomass pellet hot air furnace is increasingly widely used due to its advantages of environmental protection and renewable nature. However, affected by the characteristics of biomass fuel and the operating environment, hot air furnaces are prone to ash accumulation, corrosion and other problems, which shorten the service life. The coordinated application of automated ash cleaning system and high temperature resistant and corrosion resistant materials can effectively improve the reliability and durability of hot air furnaces.Automated ash cleaning system is the key to ensure the efficient operation of biomass pellet hot air furnace. When biomass fuel is burned, ash is easily deposited on the heating surface to form an ash layer. This will not only reduce the heat exchange efficiency, but also cause local overheating and accelerate equipment aging. The automated ash cleaning system can achieve timed or on-demand ash cleaning through preset programs or sensor monitoring. Taking mechanical vibration as an example, it uses a mechanical device to regularly knock on the heating surface to make the ash fall off; acoustic wave cleaning uses the vibration energy of sound waves to separate the ash layer from the heating surface. These methods avoid untimely and incomplete manual ash cleaning, ensuring that the hot air furnace always maintains good heat exchange performance. At the same time, the automated ash cleaning system can also reduce the downtime maintenance time caused by ash accumulation and improve the overall operating efficiency of the equipment.The application of high temperature resistant and corrosion resistant materials provides solid protection for biomass pellet hot air furnace. Potassium, sodium, chlorine and other elements contained in biomass fuel will form alkaline metal chlorides during the combustion process. These substances are highly corrosive and will cause serious damage to the metal parts of the hot air furnace. In a high-temperature flue gas environment, metal parts are also prone to high-temperature oxidation and creep. The use of high temperature resistant and corrosion resistant materials can effectively resist these invasions. For example, 310S or 2520 high temperature resistant stainless steel is used in key parts such as heat exchangers. These materials have good high temperature strength and oxidation resistance, can maintain stable chemical properties at high temperatures, and reduce corrosion and wear. For pipes and equipment on the flue gas side, special alloy materials with resistance to alkali metal corrosion can be selected. The dense oxide film formed on its surface can prevent further erosion by the corrosive medium.The automated ash cleaning system and high temperature resistant and corrosion resistant materials do not exist in isolation, but work together in coordination. The automated ash cleaning system can remove ash accumulation in a timely manner, reduce the coverage and erosion of ash on high temperature resistant and corrosion resistant materials, and keep the materials exposed to a relatively clean environment to give full play to their protective performance. The application of high temperature resistant and corrosion resistant materials provides a stable working basis for the automated ash cleaning system, ensuring that the ash cleaning device can still operate normally under harsh environments. For example, in high temperature and corrosive flue gas, if the material performance is poor, deformation and damage are prone to occur, resulting in the ash cleaning system not being able to work properly, thereby affecting the overall performance of the hot air furnace.Through the comprehensive application of the automated ash cleaning system and high temperature resistant and corrosion resistant materials, the service life of the biomass pellet hot air furnace can be effectively extended. This not only reduces the maintenance cost and replacement frequency of the equipment, but also improves the energy utilization efficiency and production stability, providing strong support for the promotion and application of biomass energy.
