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The Enduring War on Air Pollution in Hebei Province
The Enduring War on Air Pollution in Hebei Province Urban air pollution is one of the main environmental problems in Hebei Province. Through the analysis of the ten-year monitoring results in Hebei, it is found that the types of urban air pollution in the province are transitioning from coal smoke p[…]
Coal suitable for chain grate boilers
Coal suitable for chain grate boilers 1. Class II bituminous coal: volatile matter ≥ 20%, heat generation>17.7-21 MJ/kg 2. Class III bituminous coal: volatile matter ≥ 20%, calorific value>21MJ/kg 3. Poor coal: Volatile content>10-20%, heat generation ≥ 17.7MJ/kg 4. Class III anthracite: Vo[…]
The combustion method of biomass boilers
The combustion method of biomass boilers Due to the particularity of biomass fuel itself and its combustion process, the design and operation of biomass boilers should be based on the combustion characteristics of different types of biomass, in order to ensure the economic and reliability of biomass[…]
Characteristics of biomass fuel combustion
Characteristics of biomass fuel combustion Due to the different characteristics of biomass fuel compared to fossil fuels, there are significant differences in the combustion mechanism, reaction rate, and composition of combustion products between biomass fuel and fossil fuels during the combustion p[…]
What are the advantages of biomass fuel over coal carbon
What are the advantages of biomass fuel over coal carbon The advantages of biomass fuel are as follows: 1. It has less carbon content and less fixed carbon. The highest carbon content in biomass fuels is only about 50%, which is equivalent to the carbon content of brown coal with less generation age[…]
Characteristics of gaseous fuels such as natural gas, biogas, and town gas for gas-fired boilers
Characteristics of gaseous fuels such as natural gas, biogas, and town gas for gas-fired boilers include: (1) Good Usability – They readily mix with air during combustion, resulting in minimal flue gas losses and high boiler efficiency. – The fuels contain low levels of sulfur and ash co[…]
What reasons might cause a gas boiler’s burner motor to operate, ignite normally, but then fail and shut down later?
What reasons might cause a gas boiler’s burner motor to operate, ignite normally, but then fail and shut down later? The solenoid valve fails to open due to a damaged solenoid coil or a broken cable, requiring the replacement of the solenoid valve or troubleshooting any circuit disconnection i[…]
During low load operation of a boiler, the reason for using more upper combustion burners is as follows
During low load operation of a boiler, the reason for using more upper combustion burners is as follows In most medium and high-pressure boilers, the superheater relies primarily on convective heat transfer. It is well-known that the steam temperature characteristic of a convective superheater decre[…]
What reasons might cause a gas boiler’s burner motor to run, with voltage applied to terminal 16 of the controller, but without ignition, and subsequently result in a fault shutdown?
What reasons might cause a gas boiler’s burner motor to run, with voltage applied to terminal 16 of the controller, but without ignition, and subsequently result in a fault shutdown? 1. The spark electrode gap is too large; adjustment of the electrode spacing is required. 2. Contamination is p[…]