CFB (circulating fluidized bed) coal-fired boilers have several advantages over traditional pulverized coal-fired boilers. Some of the main advantages are:
High fuel flexibility: CFB boilers can use a wide variety of fuels, including coal, biomass, and waste fuels, with varying moisture content and size. This makes them ideal for use in areas where fuel availability and quality are uncertain.
High combustion efficiency: CFB boilers can achieve high combustion efficiency, typica...
If the coal feeding air flow rate to the coal feeder of a fluidized bed boiler is too high or too low, it can have several effects on the operation of the boiler:
1. Too high coal feeding air flow rate: if the air flow rate to the coal feeder is too high, it can cause the coal to be blown out of the feeder and into the furnace too quickly, which can result in incomplete combustion and high emissions of unburned hydrocarbons and carbon monoxide. This can also cause fluctuations in the be...
Proper shutdown procedures are crucial for ensuring the safe and efficient operation of a coal-fired steam boiler. The following steps should be followed when shutting down a coal-fired steam boiler:
1. Reduce the load: Before shutting down the boiler, the load should be reduced to its minimum level. This will help to prevent sudden drops in pressure and temperature, which could cause damage to the boiler and its components.
2. Shut off the fuel supply: The fuel supply to the boiler should be ...
Circulating fluidized bed boiler is a type of boiler that uses circulating fluidized bed technology to burn solid fuels. It has several advantages:
1. High efficiency and energy-saving: circulating fluidized bed boiler uses circulating bed technology, where the particle material in the bed forms a circulating flow, effectively improving the heat transfer efficiency. As a result, the thermal efficiency of the boiler can reach more than 85%, and the energy-saving effect is significant.
2. Good c...
When it comes to coal fired boilers, the rear arch plays a critical role in the combustion process. The main function of the rear arch is to keep the fuel particles in suspension and prevent them from falling into the ash hopper, which can lead to incomplete combustion and decreased efficiency.
At ZOZEN, we understand the importance of a well-designed rear arch for coal fired boilers. That's why our coal fired boilers are equipped with advanced rear arch designs that enhance the combust...
As domestic environmental protection requirements become increasingly stringent and the conflict between coal combustion and environmental protection becomes more prominent, circulating fluidized bed boilers have become widely used high-efficiency, low-pollution boiler products. The factors that affect the operating load of circulating fluidized bed boilers are the key points for guiding users' daily management operations. Therefore, this article summarizes the factors that affect the operating ...
The coal-fired boiler uses coal as fuel. The consumption of coal is a key factor to measure the efficiency of boilers. Under the same condition, the coal-fired boiler with less coal consumption can save more costs for enterprises. However, the coal consumption of coal-fired boilers is related to many factors, such as the efficiency of the boiler, the calorific value of fuel coal and the degree of coal combustion.
Question details (Performance) :
1. The vibrating coal grate stops running totally or intermittently.
2. The current of vibrating coal grate motor rises abnormally.
3. The safety clutch of transmission machine of grate or safety pin is broken.
Answer: cause of the problem:
Boiler’s vibrating coal grate is a rotating combustion equipment, due to the bad working conditions, stuck stalling is easily happened and grate failure happens in daily application and ...
