Fire resisting paint capable of being used outdoors

Abstract

A kind of refractory coating that can be used in the open air, the mass percentage of its substrate material and each substrate material is: main substrate particle: average particle size ≤ 3mm, 40~45%; main substrate fine powder: average particle size ≤ 100μm, 15~18%; reinforced fiber fleece: 4~5%; reinforced fiber mud: 4~5%; SiO2 superfine powder: average particle size ≤ 5μm, 7~10%; water-resistant binder: 20~25%; The quality of the base material is integrated as a whole, and a coagulant must be added outside the whole, and the quality of the added coagulant is 1~2% of the overall mass; a composite water reducer is needed outside the whole, and the added The mass of the composite water reducer is 0.2-0.4% of the overall mass. The invention can be used on thermal equipment working in the open air, and the coating layer does not crack under rain washing and sunlight irradiation, and has a certain heat preservation effect.

Description

technical field [0001] The invention relates to the technical field of refractory materials, in particular to a refractory coating suitable for outdoor use. Background technique [0002] Some thermal equipment is arranged in the open air. Due to changes in the process temperature of the kiln during the operation of the thermal equipment, the volume of the exposed body changes, resulting in cracking or displacement of the furnace body, which may cause leakage or fire, and affect the normal operation of the thermal equipment. , Deteriorating the operating environment for staff. The general treatment method is to cover a layer of refractory coating on the exposed body. These coatings generally use organic or inorganic binders as the binder for bonding refractory aggregates. However, most of the binders are thermohardening or air-hardening, and will crack or even fall off after long-term sunshine and rain washing. For example, the vault of coke ovens arranged in the open air w...

AI Technical Summary

Problems solved by technology

However, most of the binders are thermohardening or air-hardening, and will crack or even fall off after long-term sunshine and rain washing. For example, the vault of coke ovens arranged in the open air will change the volume of the vault after long-term work, resulting in cracks in the brick joints. The string of fires will worsen the working conditions of the carbonization chamber. After the refractory coating is applied to seal, the erosion of rainwater and sunlight will also cause the coating to crack and fall off. The same example also includes boilers and downdraft kilns arranged in the open air.

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