Chain grate is one of the most widely used mechanical combustion equipment in industrial boilers. The chain grate boiler advantages are obvious. When the chain grate is burned, the fuel enters the grate through the stoker. As the grate moves, the combustion process in the boiler begins. After combustion, the slag is discharged into the slag shaft at the end of the grate as the grate moves. Therefore, compared to reciprocating, vibrating and ring furnaces, the chain grate has higher coal requirements.
Chain grate boiler is a kind of horizontal three-way water fire tube mix boiler, the ignition of the fuel coal of this series of industrial boilers mainly depends on the radiation heat and arch of the furnace flame, so the coal above catches fire first and then gradually burns down, which belongs to the single-sided fire. After the coal enters the furnace chamber, it moves slowly from front to back with the grate. In front of the grate is the new coal burning preparation area, which is mainly used for preheating and drying of the coal. Then volatiles come out and start to enter the combustion zone. In the middle of the grate is the coke burning zone, where the temperature is very high and both oxidation and reduction reaction processes take place, giving off a lot of heat. At the back of the grate is the burning zone, where the remaining coke continues to burn. The chain grate boiler has obvious advantages, and its thermal efficiency is above 77%, which is higher than the boiler technical standard.
The series boilers are highly automated and the operation has been mechanized, which reduces the labor intensity of the stoker. It is easy to install and move, which can save a lot of capital investment. It adopts fast loading factory and installs valve instrumentation, drum, induced draft fan, smoke duct, coal saver, dust collector and slag squeezer at the maintenance site. Both coal loader and water and electricity circuit can be operated, and it has the characteristics of fast fire starting.
There are many advantages of chain grate boiler, such as sufficient output, high thermal efficiency, stable and reliable operation, strong overload capacity, wide applicability of fuel, energy saving and environmental protection, etc. This series of chain grate coal-fired boiler of ZOZEN Boiler has been widely used in many fields and industries, such as pharmaceutical, chemical, food, metallurgical machinery, mining, etc. If you have the need to purchase boilers in the near future, welcome to consult ZOZEN Boiler, we will be happy to serve you.
