Due to the fact that the materials used in the three tube dryer equipment are mostly steel, it is easy to rust in long-term use. For dryers that frequently handle corrosive materials, anti-corrosion work must be done well. Generally, a dryer is composed of a cylinder, a flat plate, and welded parts. Different parts of the dryer have different purposes, and their anti-corrosion methods are also different. Below, the Huangsha dryer manufacturer's editor will talk to you about how to deal with metal rust in a three cylinder dryer, including the following points.

One is to repaint the rusted parts: if rust is found on the dryer body, repainting can be done, which is also the most direct method of rust prevention. At the same time, it is also possible to regularly repaint the dryer, which not only maintains the appearance of the machine but also extends the service life inside the machine.

The second is to use austenitic nickel chromium stainless steel for welding at the welding point. Many parts of the three cylinder dryer need to be welded, and using old-fashioned materials for welding often leads to phenomena such as fracture and corrosion, which greatly affects the service life of the dryer. However, the difference between austenitic nickel chromium stainless steel and ordinary carbon steel lies in poor thermal conductivity, high coefficient of expansion during heating, and high resistance value. These characteristics require the use of this material for welding, and special methods must be employed. However, this type of steel has excellent corrosion resistance.

Thirdly, apply rust inhibitor to the three cylinder dryer: In general, all components of the dryer are coated with rust inhibitor when it leaves the factory. However, the dryer may wear out after a period of use. If the rusted parts have already rusted, they need to be cleaned first. Apply rust inhibitor again.

The fourth method is to use passivation and phosphating. Many components of the three cylinder dryer in manufacturing and production are made of carbon steel. If working for a long time, it is easy to generate a large amount of rust on the surface, requiring frequent manual rust removal, which will increase the workload. However, passivation and phosphating methods mainly rely on electrical and electrochemical reactions, which are one-time treatments that can expose the original color of the metal on the surface of rusted steel components, while also generating a tight anti rust layer film on the surface of the metal. After using this method, even if the device is placed in a humid environment, it will not cause rust. This method is relatively simple to use, which can save a lot of manpower and material resources, as well as reduce user investment. Passivation and phosphating anti-corrosion methods are commonly used as anti-corrosion methods.

Everyone mentioned above has also understood the method, but no matter how good the method is, it still depends on regular maintenance and upkeep to ensure the long-term service life of the equipment.