Abstract:
고 에너지 압착 형 록볼트가 개시된다. 개시된 고 에너지 압착 형 록볼트는, 내부에 장착공간이 형성되며, 등 간격으로 내부로 굽어진 굽힘가공파이프, 상기 굽힘가공파이프의 일 단부에 연결된 보호캡, 상기 장착공간에 설치되며, 동적팽창성 고체분말을 구비한 고체팽창유닛, 상기 굽힘가공파이프의 타 단부에 연결된 록볼트커플링 및, 상기 록볼트커플링을 관통하여 상기 고체분말에 연결된 트리거를 포함하며, 상기 트리거에 의해 기폭되면, 상기 고체분말이 순간적으로 반응하여 상기 굽힘가공파이프가 원형 파이프로 회복되면서 상기 굽힘가공파이프의 직경을 확장시키는 것을 특징으로 한다.
Abstract:
The present invention relates to a miniblasting charge capsule for a crack control, used in a partial demolition and an emergency demolition of a structure and a miniblasting method using the same, including: a capsule main body (11) having a filling unit having one side open on the inside; a detonating agent (12) including a detonating fuse and gunpowder filled up in the capsule main body; and a stopper (13) coupled to one side of the capsule main body to seal the capsule main body, and connected to a detonator or the detonator fuse. The capsule main body includes: more than one notch (14) for generating a crack matching up a proposed line of a demolition interval during the blast of an initial explosive, by being matched up with the proposed line of the demolition interval of a peripheral portion of the capsule main body; and more than one crack expansion notch (15) for narrowing down the cross sectional are of a head portion to be formed into a tapered cross section and to induce an expansion of the crack caused by the blast.
Abstract:
The present invention relates to an accelerating vehicle for a single hole for blasting and crushing a structure, and a blasting and crushing construction method using the same. The purpose of the present invention is to increase crushing efficiency and work efficiency by maintaining the explosion pressure inside a charge hole and hardening within a short time when a structure (disassembled target concrete) having a short tamping field is blasted and disassembled. According to the present invention, the accelerating vehicle for a single hole for blasting and crushing a structure comprises: a filler (11) in which glass fiber reinforcing cement and sand are mixed; and a packing material (12) consisting of a hydrophilic material for absorbing water by one selected from a group including long fiber traditional Korean paper and long fiber paper, and whose inside is filled with the filler. After the accelerating vehicle is hydration-reacted by water, the accelerating vehicle is inserted into a charging blast hole of a blasted structure and tamping. The filler is formed by mixing 70-80 wt% of glass fiber reinforcing cement and 20-30 wt% of sand. According to the present invention, a blasting and crushing construction method using an accelerating vehicle for a single hole for blasting and crushing a structure comprises: a first step for preparing an accelerating vehicle for a single hole for blasting and crushing a structure to tamp a blast hole charged for blasting and crushing a blasted structure; a second step for tamping the charged blast hole after the accelerating vehicle for a single hole for blasting and crushing a structure prepared through the first step absorbs water; and a third step for blasting by priming the blast hole charged through the second step. In the second step, the accelerating vehicle for a single hole for crushing is dipped into water and absorbs the water.
Abstract:
PURPOSE: A selective fragmentation system using high voltage pulse and a method for the same are provided to selectively separate and fragmentize expensive metals from a waste printed circuit board and to improve the concentration rate and the separation degree of metals. CONSTITUTION: A selective fragmentation system(100) includes a high voltage generator(110), a discharging electrode(120), and a discharging apparatus(130). The high voltage generator repeatedly implements charging and discharging operations. The discharging electrode applies high voltages from the high voltage generator to a material(140) to be fragmentized. The discharging apparatus immerses the discharging electrode and the material in water and implements dielectric breakdown. The discharging apparatus includes a water bath(131) and a mesh(132). The water bath collects fragmentized materials. The discharging electrode and the material are arranged on the mesh.