Coal Pulverizer
A coal pulverizer is a device used to grind coal into a fine powder. It is an important part of the process of burning coal since a finely ground coal helps to maximize the burn rate and efficiency of the system. Coal pulverizers can be either vertical shaft or horizontal and are available in different sizes depending on their application, ranging from small industrial grinders to larger industrial capacities. Coal pulverizers are also used to pulverize and dry coal for use in power plants, cement plants, and other fields.
The coal pulverizer has two main functions, grinding and conveying. It works to grind the coal into a fine powder, while also conveying it to a storage location such as a boiler or furnace. The grinding process occurs on a large rotating wheel, which has many blades or hammers that are rotating at high speeds to achieve the desired fineness. The coal is fed into the wheel through a chute, and then is forced under pressure through the blades to be pulverized. After it is ground, the coal is collected in a container for storage.
In addition to the grinding process, coal pulverizers also help to control the release, volume, and distribution of the powdered coal from the mill. This helps to ensure that the quantity of coal delivered to a furnace remains consistent and that the temperature of the coal remains within acceptable ranges. The pulverizer’s design also plays a large role in helping to control the emissions of hazardous materials into the environment.
Coal pulverizers can be either horizontal or vertical, each with its own design and features. Horizontal coal pulverizers are the more common of the two, as they generally have a higher production rate and a more energy efficient process. Vertical pulverizers, while they lack the processing power of horizontal pulverizers, tend to reduce the overall energy usage by pushing the coal particles closer together which reduces the amount of energy and grinding required to process it.
It is also important to consider size when shopping for a coal pulverizer. As coal particles generally range in size from a few millimeters to a few centimeters, it is important to ensure that the pulverizer is the correct size for the application. Larger particles may require larger and more powerful pulverizers, while smaller particles can be well-suited to a smaller device.
In conclusion, coal pulverizers are essential for preparing coal for use in modern power plants, cement plants, and other industrial applications. With proper selection and thought put into size and design, a coal pulverizer can help to reduce emissions, improve efficiency, and maximize the burn rate of the fuel.
