A kind of high-temperature energy-saving anti-corrosion coating for metal baffle of sintering trolley and its application

Abstract

The invention relates to a high-temperature energy-saving anti-corrosion paint for a metal baffle of a sintering trolley and an application method thereof. The paint contains 15-35 parts by weight of zircon powder, 3-10 parts by weight of silicon carbide powder, 39-43 parts by weight of mullite powder, 3-10 parts by weight of ball clay, 2-7 parts by weight of spodumene, metal silicon 2-5 parts by weight, magnesium aluminum silicate gel powder 5-15 parts by weight. Add water to prepare a fine slurry, spray or smear on the metal surface of the baffle, and after drying and heat treatment, the coating will firmly adhere to the metal surface of the baffle to form a high-temperature resistant, energy-saving and anti-corrosion ceramic coating. It can not only reflect the heat of the material layer, reduce the temperature of the inner wall of the baffle, but also protect the inner wall of the metal baffle from corrosion. This can prolong the life of the baffle plate, and at the same time have the effect of saving energy, which is very beneficial to reducing the production cost of sintered ore.

Description

technical field [0001] The invention belongs to the technical field of inorganic materials, in particular to the field of anti-corrosion coatings, and more specifically relates to a high-temperature energy-saving anti-corrosion coating for sintering trolley baffles. Background technique [0002] The most widely used sintering equipment in ironworks is the belt sintering machine, and the sintering machine trolley is composed of the trolley body, baffle plate, heat insulation pad, grate bars, wheels and so on. The baffle of the belt sintering machine trolley is one of the main wearing parts. The baffle is generally cast with ferritic ductile iron. Due to the harsh working conditions, it is easy to deform and crack when working under high temperature and severe cold and hot conditions, and the service life is generally shortened by 3 to 6 months. Therefore improving the service life of the baffle plate is one of the urgent problems to be solved in the production of the sinteri...

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Problems solved by technology

At the same time, due to the recycling of dust in the sinter, a large amount of K, Na, Pb, Zn and other harmful elements are enriched. These harmful elements intensify the corrosion of the metal baffle, and also cause the life of the baffle to decrease.

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