The application scope of steel structure workshop is more and more extensive, it will appear various problems in use, such as corrosion, deformation, fire and so on? I believe that we are also more concerned about, the following we will come together to understand it!
There are many ways to protect the steel structure factory building from fire. First, the heat insulation method is to wrap the factory building components with Refractory. The wrapping materials are concrete, light fire-resistant concrete or steel Mesh fire-resistant mortar. The second is the heat method, the principle is to cut off or block the heat generated by the fire to the transmission of components, so that the plant in the specified time temperature rise does not exceed critical point. The third is the heat conduction method, that is, filling the hollow closed section (mainly the column) with water. In case of fire, the components transfer the absorbed heat to the water, consume the heat by evaporation of the water or conduct the heat away by circulation, and the temperature can be maintained at about 100 °C, so that the temperature of the frame doesn't rise to the critical point, which protects it. Fourth is the spraying method, the fire-proof paint is directly sprayed on the surface of the component by the spraying apparatus, and a fire-resistant protective layer can be formed in case of fire. At present, there are two main methods used in the construction of large steel structure factory buildings, thick-coated and thin-coated fire retardant coatings.
The general requirements of fireproof coating for steel structure workshop are that raw materials should be inspected in advance and no asbestos material and benzene solvent should be used. Fire retardant coatings can be applied by one or more of the methods such as spraying, spreading, roller coating, scraping or brushing, and can be dried and solidified under normal natural conditions. Fire retardant coatings should be alkaline or slightly alkaline. The coating should be compatible with each other, and the bottom coating should be compatible with the common antirust paint. Dry coating should not have a pungent smell, burning generally do not produce smoke and harmful smell of human health. Above is the steel structure workshop fire protection method is what to share, hope can help everyone.