Why Are Wear-resistant Ceramic Pulverized Coal Pipes Used In Large Thermal Power Plants?
When large-scale thermal power plants choose pulverized coal pipelines, the main considerations are the safety, stability, production efficiency and production cost of the production system, while ordinary metal pulverized coal pipelines are prone to powder leakage and wear-out due to severe wear and tear. , not only poses a threat to the security and stability of the system, but also requires frequent maintenance and replacement, which reduces production efficiency and increases production costs. In comparison, wear-resistant ceramic pulverized coal pipelines show obvious advantages, and are Approved by many large thermal power plants.
In coal pulverized pipelines of thermal power plants, the scouring speed of pulverized coal can often reach 30 m/s, which is mainly faced with erosion and wear. play a decisive role. However, the hardness and weldability of metal materials are mutually restricted. The greater the hardness, the worse the weldability. Therefore, even the more advanced bimetallic pipes in metal pipes can only reach about HRC60 in hardness, while wear-resistant ceramic coal The hardness of the powder pipeline can reach above HRA85.
According to the usage data of many large power plants, the service life of the bimetallic pulverized coal pipeline used in the coal conveying system of the power plant is usually one to two years, while under the same working conditions and the same thickness, the wear-resistant ceramic pulverized coal pipeline is five years The amount of wear is less than 0.2mm, which does not affect the use at all, and the life of the pipeline is at least three times higher.
The use of wear-resistant ceramic pulverized coal pipes in large thermal power plants is a comprehensive choice of efficiency and cost. After the test of time, it has truly been installed once and will not be replaced for five years.
