Fireproof hole-blocking method

Abstract

The invention discloses a fireproof hole-blocking method and relates to a fireproof construction method. The fireproof hole-blocking method mainly comprises the following steps that a plurality of penetrating-connection holes used for penetrating of cables are formed in a fireproof plate set according to the size of the cables; all the inner walls of a hole and all the outer side walls of the peripheral side of the fireproof plate set are uniformly coated with fireproof sealants correspondingly, and the fireproof plate set is bonded in the hole; the outer sides of the cables are wrapped with fireproof blocking materials, the cables and the fireproof blocking materials are inserted into the penetrating-connection holes, and gaps in the two ends of the penetrating-connection holes are blocked through fireproof sealants; fireproof coating is brushed on the two sides of the fireproof plate set, and the thickness of the fireproof coating on the fireproof plate set is at least 0.7 mm; and textured paper is attached to the two sides of the fireproof plate set, and openings in the two ends of the hole are completely covered with the textured paper. The fireproof hole-blocking method is economic, practical, good in fireproof effect, suitable for being popularized, wide in application range and extremely high in practicability, and the life and property safety of people can be effectively guaranteed.

Description

technical field [0001] The invention relates to a fire prevention construction method, in particular to a hole fire prevention sealing method. Background technique [0002] At present, for cable fire protection, there are clear requirements in the National Electric Engineering Cable Design Code GB50217-2007: cables in cable structures cause electrical cabinets, panels or control panels, openings of tables, cables penetrate partition walls, holes in floors, work All cable pipe holes in the well shall be sealed for fire protection. At present, the method commonly used in China is to seal the hole through which the cable passes with ordinary square bricks and cement. Although this method meets the structural strength requirements of the wall, it does not have the effect of fireproof sealing; once a fire occurs, the heat of the flame will make the part used for sealing in the wall hole crack and deform, and the smoke and heat will Passing through the wall, the flames can also ...

AI Technical Summary

Problems solved by technology

Although this method meets the structural strength requirements of the wall, it does not have the effect of fireproof sealing; once a fire occurs, the heat of the flame will make the part used for sealing in the wall hole crack and deform, and the smoke and heat will be destroyed. Passing through the wall, the flame will also spread to the other side of the hole, causing the fire to spread further

Images