What are the classifications of coal-fired burners and their advantages?

What are the classifications of coal-fired burners and their advantages?

Coal-fired burners refer to devices that can fully combust coal powders in a short time and generate high-temperature vortex flow. Coal is a commonly used additive in cast iron sand. Compared with traditional lump coal, coal powders have the advantages of low density and large surface area, making them easy to pneumatic transport.The drawbacks are that coal powders tend to self-flow and leak easily when the equipment is not tightly sealed.

According to their use, coal-fired burners can generally be divided into the following three types: (1) coal-fired burners suitable for use in rotary kilns; (2) coal-fired burners suitable for use in boilers; and (3) coal-fired burners suitable for use in asphalt mixing plants.

Compared with oil-fired burners, coal-fired burners have significant advantages in many aspects.

1. Coal powders stay for a long time in the high-temperature region of coal-fired burners, resulting in high combustion efficiency and reduced black smoke from the smoke stack.

2. Coal-fired burners can shorten the heating time and improve the heat efficiency, requiring lower coal quality and wider range of coal types, resulting in high economic benefits.

3. Coal-fired burners are easy to start, heat up quickly, and work efficiency can be greatly improved.

4. The amount of air and coal that can be supplied to the burner can be adjusted according to needs, resulting in large-range adjustments of炉温and flame length, meeting actual needs.

5. The temperature field in the burner is evenly distributed, allowing for large areas of heating surface on the inside of the furnace, resulting in good product quality.