Environmental-friendly metallurgy coating resistant to high temperature and high pressure

Abstract

The invention discloses environmental-friendly metallurgy coating resistant to high temperature and high pressure. The environmental-friendly metallurgy coating resistant to high temperature and high pressure comprises the following substances in parts by weight: 10-22 parts of porous mullite aggregate, 1-2 parts of graphite powder, 8-14 parts of cell-closed perlite, 19-25 parts of white cement, 30-40 parts of PC, 20-10 parts of PA, 10-16 parts of diatomite, 11-14 parts of sepiolite, 1-9 parts of aluminium silicate, 6-9 parts of hollow glass beads, 3-8 parts of graphite powder, 1-2 parts of kaolin, 3-8 parts of stearic acid, 4-10 parts of stearate, 1-2 parts of nano oxide, 12-25 parts of filler, 2-6 parts of auxiliaries and 100-150 parts of water. The environmental-friendly metallurgy coating has the beneficial effects that the environmental-friendly metallurgy coating resistant to high temperature and high pressure has the characteristics of high strength, low specific gravity, high refractoriness, low heat conductivity coefficient and the like; meanwhile, a high temperature device adopting the environmental-friendly metallurgy coating has the advantages that heat loss can be reduced, life of the high temperature device can be prolonged, energy can be saved and cost can be reduced.

Description

technical field [0001] The invention relates to an environment-friendly metallurgical paint resistant to high temperature and high pressure. Background technique [0002] In the process of metallurgical steelmaking industry, the high-temperature molten steel after converter smelting passes through the ladle and tundish and finally casts into a green body. Refractory materials must be built in all high-temperature melting containers involved in the smelting process. Conventional refractory linings are divided into working layers, insulation layer, permanent layer. Due to the poor thermal insulation performance of conventionally used refractory materials, the temperature of molten steel drops rapidly in the container. In order to ensure the performance of steel, the initial temperature of molten steel must be increased to meet the needs of the process. In hot air and heat pipelines, in order to ensure the temperature of high-temperature gas during transportation, refractory m...

AI Technical Summary

Problems solved by technology

In the use of high-temperature kilns, in order to ensure the thermal insulation effect of the kiln and improve the service life of the kiln lining, a combination of heavy bricks and light refractory materials is often used to build the kiln lining, resulting in a large heat capacity and reduced thermal efficiency of the kiln lining.

Due to the low strength of traditional lightweight insulation materials, they cannot be directly used in the working layer, and must be built with multi-layer refractory materials to increase the pipe diameter