This special inspection clearly defines safety red lines. If the fire resistance and explosion-proof performance of elevator shafts and machine room partition walls in explosion-hazardous areas do not meet standards, they will be directly identified as major safety hazards and ordered to cease production for rectification. Many old factory buildings previously used ordinary gypsum board and red bricks to enclose elevator shafts. These materials lacked shockwave resistance and were highly susceptible to rapid fire spread. Thick concrete explosion-proof walls were too heavy, and renovations of older buildings required additional foundation reinforcement, often taking more than half a month to complete, disrupting normal production and creating significant challenges.
Addressing the unique challenges of elevator shafts-their narrow, enclosed spaces, constant dampness, and susceptibility to impacts from elevator cars-elevator-specific explosion-proof partition walls utilize a three-layer integrated structure of galvanized steel sheets and a high-density fiber cement core. This, combined with galvanized keel and fire-resistant sealing accessories, forms a complete protective system, addressing the shortcomings of traditional walls at their source. The panels meet the A1 non-combustible standard, with a single-layer fire resistance of 1.5 hours and a thickened double-layer structure reaching 4 hours. Under explosive impact, the panels undergo controlled deformation to absorb energy, preventing shattering and secondary injuries. Their explosion-proof performance meets the mandatory national standards for explosion-proof elevators.
Compared to traditional walls, this wall panel boasts significant lightweight advantages, weighing 70% less than a concrete explosion-proof wall. Adding explosion-proof elevators to older workshops requires no additional civil engineering reinforcement. The dry assembly construction process is simple; a standard elevator shaft enclosure can be erected in just two to three days, significantly reducing the renovation period. The panel contains no paper layer, and its galvanized surface is rust-proof and moisture-proof, ensuring it won't mold or powder even after long-term use in underground storage or high-humidity chemical workshops. It also provides sound insulation, preventing interference between elevator vibrations and workshop production noise. On-site cutting and installation of floor doors and pipeline holes are possible as needed. Subsequent production line adjustments and doorway modifications do not require large crushing equipment, resulting in lower maintenance and renovation costs.
Currently, this type of panel is widely used in lithium battery energy storage warehouses, paint and pharmaceutical workshops, oil and gas stations, dust processing plants, explosion-proof elevator shafts, elevator lobby partitions, and machine room partitions. Industry experts predict that as routine safety inspections continue throughout the year, the demand for niche explosion-proof building materials adapted to special equipment scenarios will continue to rise, and lightweight, integrated, and easy-to-accept specialized protective wall panels will become the mainstream development direction for the renovation of high-risk industrial buildings.
