Want To Slow Down The Corrosion Rate Of The Sewage Pump? Boshan CNSME Slurry Pump Teaches You A Few

In industrial production, corrosion is a common and headache.Corrosion protection of sewage pumps is very important, so how to prevent corrosion? CNSME slurry pump teaches you a few tricks.1. Lining　　Line is usually made of a whole piece of material and is suitable for equipment in contact with highly corrosive media.For example, storage tanks for hydrochloric acid and dilute sulfuric acid will be lined with rubber or plastic, while steel tanks for nitric acid will be lined with stainless steel plates.Enamel is actually a glass lining, industrially known as enamel glass.It has strong acid resistance and is widely used in food, pharmaceutical and other industries.2. Correct material selection and design. Understanding the corrosion resistance of different materials and correctly and rationally selecting corrosion-resistant materials is an effective method.*, There are many types of materials, and the corrosion rates of different materials under different environments are also different.Material selectors should choose materials with low corrosion rate, low price, and physical and mechanical properties that meet specific environmental design requirements in order to obtain an economical and reasonable equipment service life.　　3. Coating　　Organic coatings are widely used to protect metal structures in the atmosphere. The coating covers the metal surface of the sewage pump and forms a porous film after drying.Although the metal cannot be isolated from the dielectric, it increases its value and reduces the corrosion current through the diffusion resistance and solution resistance of the micropores.In mild environments such as atmosphere and seawater, metal corrosion at the bottom of the micropores is slow.Corrosion products can clog micropores and have a long service life.However, it is not suitable for use in strong corrosion solutions, as the corrosion rate of metals is very fast and the production of hydrogen can cause the paint film to rupture.4. Surface treatment Before contacting the environment, treat the metal with a passivating agent or a film forming agent.The metal surface forms a stable and dense passivation film, and its corrosion resistance is greatly improved.It differs from the corrosion inhibitor method in the future use environment without the need to add corrosion inhibitors.After anodic treatment of aluminum, the surface can form a film denser than the film generated in the atmosphere.This film has excellent corrosion resistance in mild corrosion environments, and the blue surface of steel parts is also its principle.5. Adding corrosion inhibitors Generally, by adding a small amount of corrosion inhibitors to the corrosion environment, the corrosion of metals can be greatly reduced.We usually divide them into three types: inorganic inhibitors, organic inhibitors and gas phase inhibitors, and their corrosion inhibitors are also different.6. Adjust the environment. If various factors that cause environmental corrosion are eliminated, the corrosion of the sewage pump will be terminated or slowed down.However, most environments are uncontrollable, such as moisture in the atmosphere and soil, oxygen in seawater, etc., and the chemical production process cannot be changed at will.However, some local environments can be adjusted.For example, the boiler inlet water must be deoxygenated first to protect the boiler from corrosion.For example, water should be removed before air enters a closed warehouse, which can also prevent rust of stored metal parts.To prevent the cooling water from scaling and perforating on heat exchangers and other equipment, alkali or acid can be added to the water to adjust the pH to the appropriate range (near neutral).) Refining process to keep the production liquid neutral or alkaline.When the temperature is too high, refractory bricks can be cooled on the wall or lining the refractory bricks to insulate the inner walls of the equipment.These are the methods used to change the environment without affecting the product and process.Under the premise of permission, it is recommended to choose mild media instead of strongly corrosive media in the process.