Galvanizing equipment descaling cleaner

Abstract

The invention discloses a chemical cleaner for galvanizing equipment, and belongs to the technical field of chemical cleaning. The chemical cleaner is prepared from, in weight percent, 0.3-1.2% of surface active agents, 0.1-1.2% of imidazoline inhibitors, 0.1-0.8% of dispersing agents, 0.2-0.8% of additives, 7-8% of oxalic acid, 12-14% of hydrochloric acid and the balance water. According to the cleaner, inorganic acid and organic acid are mixed together through best distribution ratio, so that the cleaner has descaling and inhibiting functions, the inorganic acid, the organic acid, dodecyl benzyl ammonium chloride, the amphoteric imidazoline inhibitor and additives are compounded together, the dodecyl benzyl ammonium chloride has a good corrosion inhibition effect on zinc, so that the chemical cleaner for the galvanizing equipment is prepared, and the cleaner has low metal zinc corrosion rate, is high in descaling speed and meets descaling and corrosion inhibition requirements of the industrial galvanizing equipment.

Description

technical field [0001] The invention relates to a descaling and cleaning agent for galvanizing equipment, which belongs to the technical field of chemical cleaning. Background technique [0002] In industrial production, in the new anti-corrosion heat exchange equipment and winter heating equipment, a large number of galvanized heat dissipation pipe coolers are used for heat exchange, water is used as the cooling medium, and the cooled process fluid flows in the heat dissipation pipe, and water and air are simultaneously It flows outside the tube, and the heat of the fluid in the tube is transferred to the air through the water outside the tube to achieve the purpose of cooling. In order to save water in the water-cooled cooler, the water is cooled in the cooling tower and recycled. The coolers often used in large food factories, liquefied gas stations, and steel plants are evaporative coolers. The heat dissipation pipes are made of galvanized iron-based materials. Since th...

AI Technical Summary

Problems solved by technology

Since the cooling water used is generally untreated raw water, after a period of use of the cooler, scales, rust, or bacteria and algae often occur on the heat dissipation pipes of galvanized materials, resulting in cooling High temperature occurs due to poor heat dissipation of the device, which seriously affects the cooling effect of the equipment, reduces the service life of the equipment, and consumes water and electricity. It must be chemically cleaned to restore its original function.

However, since metal zinc is a very active amphoteric metal, it is difficult to protect the galvanized layer by using general acid cleaning agents in chemical cleaning and descaling, which will cause corrosion of the radiator pipe of the cooler, cooling agent leak

In response to this problem, Chinese researchers have conducted a lot of research on zinc corrosion inhibitors. Liaoning Normal University has done a lot of research and exploration in this area and made some progress. However, due to corrosion inhibitors and descaling The acid used has poor solubility, strong odor, and the corrosion of zinc has not been completely solved, so the practical application is limited

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