What causes the biomass burner to coke and accumulate dust? How to solve it?

To Biomass burner coking and ash accumulation refers to the ash produced by biomass fuel after combustion. After high temperature, most of the ash melts into liquid or softened state. If the ash remains softened when it touches the heated surface, it is cooled And it sticks to the heated surface to form burner coking and dust accumulation. To Measure 1: Biomass pellet fuel selection requirements: To One: When choosing bio-particle fuel, it is best to choose a single pure wood pellet. Generally, normal pure wood pellets are not easy to coke and accumulate dust. At present, the best woods on the market are miscellaneous woods, such as elephant wood, pine wood, and mahogany. If it is acceptable, mahogany can be used. The particles made of pure mahogany have higher calorific value than other particles and ensure no coking; 2: The raw materials are not cleanly dusted, or the raw materials are oily, there will be dust or grease in the burning particles, and coking will also occur; Three: The raw materials of biomass pellet fuel must be dry; Four: Try to minimize the use of pulverized particles, some particles are pressed with wood powder, and the resulting particles are very hard, resulting in insufficient combustion and coking; Five: The most suitable pellet fuel length for the biomass burner is 6 millimetres and 8 millimetres. If the pellets are too short or too long, it is easy to cause coking and tempering. To To Measures 2: Requirements for the use of biomass burners: To 1. The built-in parameters of the biomass burner must be changed arbitrarily. Changing the equipment parameters at will may easily cause abnormalities in the burner. If the equipment parameters need to be changed, please operate under the guidance of professionals; 2. During the working process of the biomass burner, the operator needs to pass through the fire viewing port from time to time to observe the combustion of the particulate fuel in the furnace; 3. Decoking method of biomass burner: dismantle the equipment used for the burner, tap the coke piece from the burner with a wooden or iron rod to make it out of the gasification chamber. (Be careful not to damage the gasification chamber and the fire channel when decoking, it is recommended to check once every 3 to 7 days); 4. Under the condition of ensuring that there is no smoke, reduce the air intake to reduce carbon formation; 5. In addition to the above reasons, the air distribution, furnace design, and feeding speed of the biomass burner can also cause coking. The new combustion machine produced by Shenghuo can automatically discharge slag and easily solve the problem of burning and coking. To Measure 3: Use decoking inhibitor and pulse gas soot blowing device to treat the coking and ash deposit of biomass burner: To The decoking inhibitor is a high melting point fuel additive containing a combustion enhancer, which can reduce the problem of fly ash deposition on the flue gas side. When it is sprayed into the furnace, it will mix with the fly ash leaving the furnace, and adhere to these semi-melted ash, by changing the melting point of the ash, and forming cracks inside the coking to destroy the coking, and passing on the pipe surface The formed metal film helps reduce acid dew point corrosion problems. With the pulse gas soot blowing device, the dust on the heating surface of the boiler is removed through purging, acoustic fatigue, thermal cleaning and local vibration. Finally, the dust is engulfed by the flue gas flow to improve the thermal efficiency of the boiler. The specific operation method is: during the operation of the biomass burner, at each operating value every day, put Skg of decoking inhibitor into the furnace each time, add it from both sides of the furnace, and start pulse gas soot blowing after adding chemicals for 30 minutes. Using the two-pronged method of decoking inhibitor and pulse gas soot blowing device, the main steam temperature of the burner can be maintained for 2 months. At the same time, the fouling and coking phenomenon on the heated surface almost no longer exists, and the exhaust gas temperature can be higher than that of the previous steam blowing. When the ash device is used, it is lowered by 3-5°C, and it is preliminary estimated that it can bring about 1 million yuan in indirect economic benefits every year. To If you are interested in gas oil burners, please contact us for a quote!