The most necessary and indispensable production machinery in industrial plants today is a coal-fired boiler. So what do you know about coal fired boiler?
Let’s learn about this coal-fired boiler with KS Boiler!
A. Coal fired boiler overview
1. What is a coal fired boiler?
Boiler or coal-fired boiler is a type of boiler that uses fuel mainly coal and firewood. Coal-fired boilers are mainly used in industrial operation and production areas.
In order to match the production and processing scale, which customized capacity, different designs accordingly. If you want to use this type of boiler, you need to learn the process of operating and maintaining the boiler in detail to avoid unnecessary problems and achieve the highest efficiency.
2. Types of coal fired boilers
People divide coal fired boilers into 2 different types in terms of structure and principle:
- Chain-burning coal-fired boiler.
- Static coal fired boiler.
In the combustion chamber, the burner is an important part, which is metal so that the material can be placed on it to burn and generate heat.
Chain-burning coal-fired burner: This is the most commonly used boiler of the two types above, because it has a fully automatic fuel supply and slag discharge mechanism. The boiler operation mechanism is simple and does not need to consume too much human resources. The furnace capacity belongs to small to medium welding.
The chain-burning coal-fired boiler is composed of: A combination of water pipes (6 to 60 tons per hour) and fire pipes (1 to 6 tons per hour). Includes 3 coal bran pass, large chain grate, and suitable long chain grate.
In addition, the chain-burning boiler also has equipment such as: water injection system, dust filter, stepless automatic control by inverter, water heat recovery, …
Static coal fired boiler: Has a large capacity from 1 to 10 tons per hour, Leads to reduced working pressure and saves time.
The structure is similar to that of a static coal-fired boiler and has a larger grate.
3. How does a coal fired boiler work?
Coal-fired boilers have the same operating principles as other boilers, which are to heat water and provide heat for industrial production and processing. The amount of heat that a coal-fired boiler produces is from burning coal and firewood fuel, and then conduction of heat turns the heat energy into steam. Details of operation of coal fired boiler are as follows:
The fuel used to burn and the heat passing through the nozzle is put into the fire chamber to explode, heating the water pipes. Later, the water in the pipe boils up and forms steam. This steam is actually a mixture mixed with water that is brought up to the steam drum separating the steam from the water, the water that has not yet evaporated will return to the tubes to continue the circulation process.
The amount of steam separated at the time of leaving the steam drum will reach the superheater to form high temperature steam. Depending on the requirements of each user, which chooses to go into separate operation, the amount of smoke will be passed through the dust separator and discharged to the outside of the chimney. The unit uses the excess heat of the smoke as it is separated from the superheater for heat-intensive operation.
B. Advantages and disadvantages of coal fired boiler
Coal-fired boilers are indispensable equipment of a number of industries, they carry a number of outstanding advantages and certain disadvantages such as:
Advantages:
- Using wasted resources is coal and firewood.
- Easy to operate, use and maintain, clean the boiler.
- Depending on the industry and scale of production, the appropriate temperature can be adjusted.
- The source of heat generated by coal fired boilers is large enough for industries.
- During the operation of the boiler, it does not make loud noises, or unpleasant noises.
- Coal-fired boilers have a variety of structures, designs and capacities to choose from.
Defect:
- All industrial boiler boilers are not only coal fired boilers, that they take up too much space.
- A coal-fired boiler when operating has extremely high pressure, so it is easy to explode, causing great damage.
C. Coal fired boilers are applied in
Coal-fired boilers have many different types and structures as well as different principle characteristics, so the boiler can be suitable for many different industrial production and processing industries. The most popular applications of boilers such as: Textile, garment, food, alcohol, soft drinks, seafood, chemistry, … Mainly coal-fired boilers are used in industrial plants to provide heat and steam to industrial production machines.
Coal-fired boiler or you are using any other type of boiler, pay attention to safety inspection, repair, and warranty periodically, first of all, the consequences of an exploding boiler are more dangerous than ever. You must be very careful when operating them.
KS Boiler, a reputable boiler repair and installation supplier in Vietnam
