Explosion-proof wall construction method:
1. Installation and securing of the keel
(1) Level out uneven ground, roof, and wall surfaces where dragonframe installation is required.
(2) Mark the location of the joists on the ground and roof according to the design, and indicate the positions of doors, windows, and pipe openings.
(3) Secure the studs using chemical bolts (or at the pre-bolted welding points), with a maximum spacing of ≤1200mm between the chemical bolts (or pre-bolted welding points).
(4) Explosion-proof wall method one: The spacing between horizontal and vertical rib steel is 1200*1200, with the rib steel welded back-to-back. The thermal insulation type is filled with rock wool insulation board, with the thickness following the rib standard.
Method Two for Explosion-Proof Wall: The spacing between horizontal and vertical rib steel is 407*407mm. The ribs can be directly installed. For thermal insulation, rock wool insulation boards should be filled according to the rib standard thickness.
When cutting the joists, pay attention to keeping the vertical joist openings aligned and do not invert the top and bottom to ensure the holes in the vertical joists are on the same horizontal plane.
(5) Use a plumb bob to correct the verticality of the upright joists.
(6) Install reinforcing rods at the ends of door and window frames, wall junctions, and both sides of larger openings.
(7) Place additional support objects at the location of the suspended equipment for proper fixation.
(8) Install concealed piping and outlets, as well as interior fillings (such as rock wool as per design requirements). If holes need to be drilled in the vertical studs, the hole diameter must not exceed half the width of the stud.
(9) Inspect the size, verticality, integrity, and stability of the keel frame before proceeding with the installation of the explosion-proof panels.
2. Explosion-proof plate installation and fixation
(1) Based on design drawings and actual construction, cut the panels and drill holes as required. On-site chamfering is performed when necessary. Both long edges of the explosion-proof plate have been chamfered. However, when the wall height exceeds 2400mm, the short edges of the horizontal joints on the explosion-proof plate must be chamfered on-site to better handle the joints.
(2) Mark the fixing points for self-tapping screws on the explosion-proof panel and pre-drill concave holes (1mm to 2mm larger in diameter than the self-tapping screw heads). Self-tapping screw spacing: 150-300mm (double rows of self-tapping screws are required for back-to-back edge joists).
(3) During installation, it is generally recommended to lay the panels vertically, with the long edges of the boards secured to the vertical studs. When joining the panels, they should be naturally butted together without forceful pressing into place. The seams on both sides of the wall should be staggered, not aligned on the same stud.
(4) When fixing the explosion-proof plate, pre-drill holes should be made between the plate and the joist. The plate should be secured with self-tapping screws, starting from the center of the plate towards the edges. All screw heads should be countersunk into the plate and penetrate through the joist.
