How to prevent coal slurry dryer trust during working?
When deal with excessive moisture inside coal slurry, we must take care of dryer rust. Usually coal slurry dryer are composed of different parts, different uses of slime dryer method of corrosion is the difference between the plate cylinder and welding parts. During the slurry dryer work, a commonly used method of corrosion protection consists of the following three ways.
First, the electrostatic powder coating method. Electrostatic powder coating method is a new type of powder coating the slime dryer cylinder. Many manufacturers use liquid paint spray coal slurry dryer cylinder the old-fashioned way, but contains a lot of liquid paint ester ketones and hydrocarbons and other organic solvents, this solvent is flammable, explosive and very safety, production, construction, transportation, storage, etc. cause a lot of trouble, but usually with a kind of liquid toxic, evaporate into the air, would cause serious environmental pollution. In the manufacture of slime dryer are usually used in cold-rolled stainless steel, the high cost of steel,it can not be replaced by ordinary carbon steel with superior corrosion resistance. Powder coating electrostatic powder coating method used its corrosion resistance of stainless steel completely comparable, we can use ordinary carbon steel instead of stainless steel. And such powder coatings with a tough, durable, decorative and good, and has excellent outdoor weathering resistance and heat resistance, but also has excellent resistance to industrial the coal slurry dryer corrosion and resistance to chalking performance, excellent gloss and shade performance, can be an alternative to using stainless steel slime dryer, greatly reducing costs.
Second, welding austenitic nickel-chromium stainless steel welding. Coal slurry dryer, there are many parts must be welded, the nostalgic welding materials often fracture, corrosion phenomena. The slime dryer life its serious. The difference between the austenitic nickel-chromium stainless steel and carbon steel is a poor thermal conductivity, when heated, expansion coefficient, a high resistance value. These characteristics limit of this material in the special method must be used when welding. But this steel high corrosion resistance, and its not easy to cause a fracture.
Third, passivation, phosphating method. Carbon steel, there are a lot of parts are used in the manufacturing of the coal slurry dryer. If you work long hours, it is easy on the surface to cause a lot of rust, they have to perform a large number of artificial rust. Passivation, phosphating method mainly by the electrical and electrochemical reaction by a one-time treatment, it can enable and full of rust steel workpiece surface showing the original color of the metal, the metal surface to generate a dense anti-rust film. Using this method, even if we put the device placed in a humid environment will not cause rust. And this method is simple, can save a lot of manpower and resources, reduce investment, is the most widely used method of corrosion.
We Hongrun Machinery Factory of Gongyi City is specialized in coal slurry dryer with CE certificate. If there any more quesitons and information want to know from us, we warmly welcome you contact with us or come our factory check machine here!
contact:
Whatsapp:008613592505674
Email:sales@hwdcrusher.com
